FR2837627A3 - Shockproof socket has socket connected to p-conductor, n-conductor and protective conductor, which are connected to contacts of PCB that can be fastened to the base of protective conductor by screw - Google Patents

Abstract

The shockproof socket includes an overvoltage protection module (6), which consists of overvoltage protection elements and a PCB (7) with connection contacts for connection to the socket (2). The socket is connected with a p-conductor, the n-conductor and the protective conductor. The connection contacts of the PCB are provided as plug-in contacts. The PCB can be fastened with a screw (12) to the base of the protective conductor.

Description

reception is made of a metallic material.

1 2837627

FROM CR I PT I ON

  The invention relates to a socket outlet with protective contact, with a pot-shaped socket body for recessed or surface-mounted installation, with a socket base which can be inserted from the front side into the socket body and provided with contacts. plug-in and a protective contact as well as connection terminals for the application of P N and protective conductors, and with a carrier ring on the front side, ring which is held on the socket, the protective contact being produced in the form of a roughly U-shaped stirrup, the base of which extends over the underside of the socket-outlet and the branches of which protrude in the region of insertion of the socket-outlet, and a surge protection module being maintained below the socket-outlet, module which essentially consists of a printed circuit board fitted with connection contacts for connection to the connections of the socket-outlet which are connected to the conductor P. to the conductor ur N and protective conductor, and surge protection elements, including varistors, which are mounted

  electrically in parallel with the conductors.

  Such an outlet is for example described in the document DE

37 36 945 A1.

  The known socket requires a multiplicity of screw terminals to correctly connect the overvoltage protection module to the corresponding conductors (N. L, PE). In addition, in addition to an electrically correct connection, there is also a need for a durable mechanical connection between the overvoltage protection module and the socket. Finally, the known configuration lacks a signaling device making it possible to signal to the user the state of the

protection against overvoltage.

  Based on this state of the art, the present invention aims to provide a socket outlet with a protective contact of the generic type whose assembly complexity is simplified and which also, preferably, allows the user to easily distinguish whether the overvoltage protection module is functional or not. In order to achieve this aim, the invention proposes that the connection contacts of the printed circuit board, which can be connected to the connections of the socket outlet which are connected to the conductor P and to the conductor N. are produced in the form of plug-in contacts , and that the printed card is, by means of a screw, screwed on the base

  of the protective contact and contact with this base.

  According to the configuration according to the invention, the printed card is equipped with plug-in contacts which make it possible to press the printed card in a simple manner against the rear side of the socket socket and thus connect the plug-in contacts to the corresponding contact elements from the socket. In order to connect the protective contact to the corresponding contact track on the circuit board and at the same time to obtain a fixed mounting of the circuit board on the socket, the corresponding screw is provided, which is made of a material electrically conductive and by means of which the printed card is screwed into the set position on the basis of the protective contact, so that at the same time, between the printed card and

  the protective contact, the electrical contact relating to the protective conductor.

  It is further preferably provided that a light diode is arranged on the printed card and is connected in the electrical circuit of the protective conductor, and that a column of light-conducting material protrudes from the printed card, column of which the end is approximately in the front plane

from the power outlet.

  The light-emitting diode signals the status of the protection module, the light-emitting diode can be connected so that it lights up if the protection module is functional and that it does not light up if the protection module is not functional. One can also provide a reverse mounting. In order to direct the light from the light diode from the rear region of the socket to the front plane and to make it visible there, the corresponding column of light-conducting material is provided, by means of which the light is directed to the front plane of the socket and is visible

from this front shot.

  In certain cases, it can also be provided, in a preterential manner, that

  the light diode is designed as a red-green diode.

  Such diodes are known in the state of the art. The diode can for example be connected so that it lights up in green if the overvoltage protection module is functional and in red if the protection module

  surge protector is not functional.

  In a particularly preferred manner, it is further provided that the column of light-conducting material is directed next to the region of insertion of the socket to the front plane of the socket, which is covered by a cover. , the cover having a transparent region or a hole in the region of the end of the column. This ensures that the column of light conducting material does not obstruct the plug-in region of the socket, so that conventional plug-in connectors can be inserted into the socket; on the other hand, it is guaranteed that the light delivered by the diode is visible on the front side of the socket. Usually, in the final assembly state, the front side of the socket is covered by a cover. The cover can be made transparent in the region which is lit by the front face of the column, or else a hole can be provided in this region, so that the lit end of the

  column is optically recognizable.

  In a particularly claimed manner, it is further provided that the height of the socket-outlet is dimensioned so as to respect the standardized distance

  between the base and the socket for recessed sockets.

  In addition, provision can be made for the printed card to be covered by a

  element forming a housing, which is preferably fixed by the screw on the socket.

  A particularly advantageous point here is that the additional element forming a housing can be fixed and maintained by the same screw by means of which the printed card is fixed on the socket-outlet and by means of which the contacting between the protective contact and the corresponding contact track of the printed card. We will now describe in more detail an embodiment of the invention which is shown in the accompanying drawings, among which: FIG. 1 is an exploded representation of the individual elements of the socket outlet with protective contact; Figure 2 shows a detail in top view;

  FIG. 3 represents a socket outlet with protective contact seen from above.

  The drawings show a socket outlet 1 with protective contact, which is used to be installed in a recessed socket. It consists of a socket base 2 which can be inserted from the front side into the socket body and provided with plug-in contacts 3 and a protective contact 4 as well as connection terminals for the application of the corresponding conductors, in particular the conductor P. of conductor N and conductor PE (protective conductor). There is also provided a carrier ring 5 on the front side, a ring which is held on the socket 2. The protective contact 4 is produced in the form of a roughly U-shaped bracket, the base of which extends on the underside of the socket-outlet and the branches of which protrude into the plug-in region of the socket-outlet. A module 6 for protection against overvoltages is arranged and maintained below the socket socket 2, a module which consists essentially of a printed circuit board 7 fitted with connection contacts 8 for connection to the connections of the socket socket which are connected to the conductor P. to the conductor N and to the protective conductor, and to elements 9 for protection against overvoltage. In the mounting instruction position, the elements 9 for protection against overvoltages, in particular varistors, are mounted electrically in parallel with the conductors traversed by the current. To cover the socket opening, an insert 10 is provided, which at the same time comprises a ring forming a cover 11 which covers the socket socket 2 in the installed set-point situation. The connection contacts 8 of the printed circuit board 7, which can be connected to the connections of the socket outlet 2 which are connected to the conductor P and to the conductor N. are produced in the form of plug-in contacts, so that the contacting s 'performs when the circuit board 7 is placed below the socket 2 and is pressed against the latter in the correct position. In addition, the printed card 7 is. at

  by means of a screw 12, screwed and brought into contact on the base 13 of the protective contact 4.

  By the screw 12 made of electrically conductive material, the printed card or the corresponding conductive track of the printed card is connected and brought into contact in electrical conduction with the protective contact 4, the screw performing at the same time

  mechanical fixing of the printed circuit board 7 on the socket 2.

  A light-emitting diode 14 is disposed on the printed circuit board 7 and is connected in the electrical circuit of the protective conductor, a column 15 made of light-conducting material projecting further from the printed circuit board 7, a column whose end is approximately in the front plane of the socket when the elements are mutually assembled in the correct position. The light diode 14 is designed as a red-green diode, and it is connected in the circuit so that the diode lights up in green if the elements 9 for protection against overvoltage are functional, while it lights up in red if the overvoltage protection elements 9 are not functional. By the column 15 of light conducting material, the light which leaves from the diode 14 is directed to the front side of the socket, and is therefore clearly visible to the user. The column 15 of light-conducting material is arranged in such a way that it is directed, in the set position, next to the plug-in region of the socket-outlet 1 to the front plane which is covered by the cover 11, the cover 11 having a transparent region or a hole

  in the region of the end of column 15.

  The height of the socket 2 is dimensioned so as to respect the standard distance between the socket 2 and the socket, not shown in the drawings, of

1 recessed socket.

  It is also possible to cover the printed card 7 on the underside with an element forming an additional box, which is then preferably fixed by the screw 12 on the socket socket 2. The structure according to the invention of the contact socket outlet protection is extremely advantageous. In particular, the printed circuit board 7 is fixed by screw assembly, by means of the screw 12, on the underside of the socket socket 2, this screw assembly ensuring at the same time the contacting of the protective contact. By the light conductor of particular configuration in the form of column 15, the user can easily distinguish the optical control from

  the operating state of the overvoltage protection module 6.

  The invention is not limited to the embodiment, but could do

  the obj and many variations as part of its disclosure.

  All new individual features and combinations of

  features disclosed in description and / or drawings are considered

as essential to the invention.

Claims (6)

  1. Power socket (1) with protective contact, with a pot-shaped socket body for recessed or surface-mounted installation, with a socket base (2) which can be inserted from the front side into the socket body and provided with plug-in contacts (3) and a protective contact (4) as well as connection terminals for the application of P N and protective conductors, and with a carrier ring (5) on the front side, ring which is held on the socket (2), the protective contact (4) being produced in the form of a roughly U-shaped bracket whose base (13) extends on the underside of the socket (2) and whose branches protrude in the region of plug socket socket (2), and a module (6) for protection against overvoltage being maintained below the socket socket (2), module which consists essentially of a circuit board (7) fitted with connection contacts (8) for connection to the socket base connections (2) which are nt connected to the conductor P. to the conductor N and to the protective conductor, and of elements (9) for protection against overvoltages, in particular of varistors, which are electrically mounted in parallel with the conductors, characterized in that the connection contacts (8) of the printed circuit board (7), which can be connected to the connections of the socket-outlet (2) which are connected to the conductor P and to the conductor N. are produced in the form of plug-in contacts, and in that the card printed (7) is. by means of a screw (12), screwed and brought into contact on the base (13) of the protective contact (4).   2. socket outlet with protective contact according to claim 1, characterized in that a light diode (14) is disposed on the printed circuit board (7) and is connected in the electrical circuit of the protective conductor, and in that '' a column (15) of light conducting material protrudes from the printed board (7), column whose end is located approximately in the front plane of the taking of current (1).   3. socket outlet with protective contact according to claim 2,   characterized in that the light diode (14) is designed as a red-green diode.   4. socket outlet with protective contact according to claim 2 or 3, characterized in that the column (15) of light conducting material is directed next to the plug socket insertion region (1) up to in the front plane of the socket, which is covered by a cover (11), the cover (11) having a transparent region or   a hole in the region of the end of the column.   5. Protective contact socket outlet according to one of the claims   1 to 4, characterized in that the height of the socket (2) is dimensioned so as to respect the standard distance between the socket (2) and the socket for recessed sockets.   6. Socket with protective contact according to one of the claims   1 to 5, characterized in that the printed card (7) is covered by an element