Surge protection device with at least one surge protection unit

Abstract

A surge protection device comprises at least one surge protection unit, consisting of a substantially U-shaped socket part and a plug part which can be fixed in the socket part and which receives a surge protector. Insulated electric conductors on or in the socket part are contacted by vampire taps or displacing terminals. The surge protection device also comprises openings or perforations formed in the socket part for receiving conductors. The openings are selectively designed so that the electric conductors are inserted into or through the openings, and the openings are exposed in a socket part region which can be covered by the socket part such that cutting surfaces located on the base of the plug part penetrate the conductor insulation during the plug-in process and directly contact the respective conductor.

Claims

1. A surge protection device comprising at least one surge protection unit, consisting of a substantially U-shaped socket part (1) and a plug part (2) which can be fixed in the socket part (1) and which receives a surge protection means, wherein insulated electric conductors (8) on or in the socket part (1) are contacted by means of vampire taps or insulation displacement terminals and openings or perforations (3) for receiving conductors are formed in the socket part (1), characterized in that the openings (3) are designed optionally to insert or push through the insulated electric conductors (8) and in a section (4) of the socket part (1), which can be covered by the plug part (2), are exposed wherein the socket part (1) comprises or receives a locking plate (12) or a number of latching webs, which comprise contact faces (13) pointing to the plug part (2) and cutting faces (14) directed to the insulated electric conductors (8), such that the cutting faces (14) perforate a conductor insulation (6) during pressing or latching and contact the corresponding insulated electric conductors (8), so that an electrical connection is created between the corresponding contact faces (13) and the corresponding insulated electric conductors (8).

2. The surge protection device according to claim 1, characterized in that the plug part (2) has conductive sections (16) at its base, which correspond in position and direction with the contact faces (13) of the locking plate (12) or latching webs.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS(S)

(1) FIG. 1 shows two aerial views of the front part as per a first embodiment of the invention, once with looped-through wiring (right figure) and the other with a perforation sealed at a front opening for the conductor. In case of v-shaped wiring, the conductors are pushed through opposing perforations; with tap connections (left illustration) they are only inserted;

(2) FIG. 2 shows an aerial view and a longitudinal section of the surge protection device as per the invention with detailed representation A along the line A-A, from which the principle of vampire-cutting technology or vampire-clamp technology can be seen;

(3) FIG. 3 refers to the second embodiment of the invention comprising a socket part having a locking plate, which contains the contact faces pointing towards the plug part and cutting faces directed towards the conductors.

(4) FIG. 4 shows a basic plug part, suitable for use when using the lower section as per FIG. 3.

(5) FIG. 5 shows a cross-section through the plug part as per the invention with a conductor plate, which has groove-shaped recesses of different diameters in order to guarantee a connection of strand cross-sections of different dimensions.

(6) With the help of FIGS. 6 and 7, the socket part with included conductor plate is shown as a perspective view, which can be used turned into the receiving cavity of the socket part relating to the accommodation of conductors of different cross-sections.

(7) In a continuation of FIG. 6 and FIG. 7, FIG. 8 shows the locking plate with the cutting faces turned downwards in the image for contacting the corresponding conductors on the basis of vampire-insulation technology.

(8) FIG. 9 is based on the presentation according to FIG. 8. According to the movement executed by the arrow illustration in FIG. 8, the plate locks with the insulation displacement terminals engaged in a corresponding recess in the side wall of the socket part and creates the secure contacting of the otherwise non-stripped conductors.

(9) FIG. 10 illustrates the entire unit comprising socket part with strand plate and contacted conductors and plug part.

DETAILED DESCRIPTION OF THE INVENTION

(10) According to the schematic diagrams of FIGS. 1 and 2, a socket part 1 is assumed as per the first embodiment of the invention, which, as becomes clear in the cross-sectional representation as per FIG. 2, top right, has a U-shaped configuration.

(11) In the socket part 1 a plug part 2 can be inserted in a locking, but interchangeable manner.

(12) The plug part 2 comprises surge protection means. These means can comprise, for example, spark gaps, varistors or similar.

(13) Electrical conductors L1, L2, L3, N, PE are contacted in socket part 1. In this regard, face-side openings or perforations 3 exist, which are used to push in or push through the electrical conductors L1, L2, L3, N and/or PE.

(14) The diagrams as per FIG. 1 show that the conductors L1, L2, L3, N and PE are exposed in a section 4 of the socket part 1. This section 4 is later covered by plug part 2.

(15) Cutting faces 5 located at the base of plug part 2 are able to perforate the conductor insulation 6 when plugging in the plug part 2 and to contact the metallic core 7 of the conductor 8 in question.

(16) With a tap connection, the aforementioned openings or perforations 3 can be sealed or remain sealed on a side of plug part 2.

(17) With the V-connection, both openings on the opposite sides are free and thus designed as perforation.

(18) Using the corresponding contacting and design of the cutting faces 5 at the respective plug part 2 in conjunction with a selector switch, the corresponding network systems TT/TNS or TNC can be selected, which is indicated in the diagrams as per FIG. 2.

(19) In the second embodiment of the invention, a universal socket part 11 is assumed, which in turn receives conductors 8 via the relevant openings 3.

(20) The socket part 11 receives a locking plate 12 with vampire-cutting or insulation displacement technology for locking into the socket part in this embodiment.

(21) In this regard, the locking plate 12 comprises contact faces 13 on its top side, i.e. on the surface facing the plug part not displayed in FIG. 3.

(22) Directed to the conductors 8, the locking plate 12 comprises cutting faces 14, which perforate the conductor insulation when pushing or pressing in the locking plate 12 and contact the conductor core.

(23) In this regard, latching recesses 15 are present in one of the U-legs of the socket part 11 with a pre-assembled locking plate 12.

(24) With subsequent use of the plug part 2 specified for the second embodiment (see FIG. 4), contact counterfaces 16 formed there contact the contact faces 13.

(25) FIG. 5 ff. also show that a receiving cavity 17 is provided for a conductor plate 18 in socket part 1 and 11.

(26) The conductor plate 18 comprises a formation of groove-like recesses 19 and 20 corresponding to the number of conductors 8.

(27) The conductor plate 18 is formed as an insert and can be removed from the receiving cavity 17 and reused in a reversed form. With the help of various forms of the groove-like recesses 19 and 20 on the various sides, conductors with various cross-sections, e.g. 10/16 mm.sup.2 or 25/35 mm.sup.2, can be received.

(28) The possible embodiments of the wiring by tap connection or V-connection are shown in FIGS. 6 and 7, wherein the possibility of turning the strand plate is also documented.

(29) The process of vampire IDC contacting is documented on the basis of FIG. 8, which symbolically shows contact plate 12, which comprises the relevant vampire insulation displacement terminals 14 on the side facing conductors L1, L2, L3, N and PE and comprises windows, which form the contact faces 13 on the reverse of the relevant insulation displacement terminals.

(30) The arrow representation symbolizes the swivel, locking and connected insulation displacement contacting movement.

(31) FIG. 9 shows the status as per the latched plate 12, wherein the desired electrical contacting of the conductor is now present.

(32) In a known manner, the actual plug part 2, formed as a protective module, can be latched with the socket part 1; 11 as per the diagram of FIG. 10.