DE3013425A1 - Flush socket for modular electrical device - has contacts under bottom cover and forming bayonet connection with contact strips on device - Google Patents

Abstract

The method of installing electrical fittings uses a socket (10) which is embedded in a wall, into which is inserted a modular fitting (20). The fitting can be a rotary or on/off switch, a dimmer, a plug, a sensor etc., or combinations of these fittings. Inside the base of the socket is a set of contacts (11) with curved ends, which are engaged by corresponding contact strips (21) projecting downwards from the bottom of the modular fitting. The strips are L-shaped, with horizontal ends which fit into openings through a cover plate (15) over the contacts. This gives a bayonet type connection as the strips are forced into contact with the contacts. Projecting downwards from the centre of the base of the fitting is a spring loaded contact (23) which fits into a hole (12) in the middle of the cover plate.

Description

description

The invention relates to a device for the installation of electrical Switching and connection devices, such as switches, sockets, dimmers, lamp connections and the like., In buildings, with a wall-mounted or concealed box for recording an insert containing the switching or connecting device.

In known installation devices of this type is usually a cylindrical installation box made of plastic used in its outer surface with an opening for the introduction of the connecting wires laid in the building wall is provided. The switch, dimmer or socket insert is located on the side protruding, with a screw wyorrichtung operable clamping claws after Insertion into the can clamped on its inner surface after previously connecting the leads have been properly connected to the insert. One afterwards if necessary on the insert screwable or attachable decorative cover plate closes the can against unwanted external access. Inserting or replacing of the switch or connection insert is in such a device with a significant Effort associated and for the layperson because of the risk of Connection errors usually not feasible. On the other hand, alternatives are becoming more and more common today than ever Switching and connection options offered, such as dimmers, sensor switches, timers, remotely controlled switching devices, twilight switches, light organs and the like, the one Exchange for the usual on / off switches or sockets even by the layman seem desirable.

The invention is therefore based on the object of a device for the installation of electrical switching and connection devices of the initially specified Art to create, their use as modules easily, with a few simple steps without the risk of connection errors can also be exchanged or replaced by laypeople can.

To solve this task, the combination of features specified in claim 1 is used suggested. Further advantageous refinements and developments of the invention result from the subclaims.

The provisions according to the invention ensure easy replacement One that has become defective, so like a simple exchange of different modules Function and different designs also by the layman.

Expensive modules only have to be bought once and can ever can be operated in different rooms as required.

When creating the basic installation, connection errors are easier than before.

In the drawing is a preferred embodiment of the invention shown in a schematic manner. 1 shows a side view of a a mounting box and an insert module existing electrical installation device in partially sectioned exploded view; Fig. 2 is a plan view of the Installation box of the installation device according to Fig. 1.

The installation device consists of one with five connection contacts 11,12 provided, on building walls on or under plaster attachable mounting box 10 and an insert module 20, which can be inserted into the mounting box with a simple movement can be used. The insert module 20 is of a plurality with regard to their mechanical structure and their contact assignment to the mounting box 10 adapted Modules with different electrical functions selected. The different Modules can contain, for example, the following switching or connection devices: - On / off switch - changeover switch - series switch - dimmer - socket - multiple socket - Switch or dimmer with wireless remote control (acoustic, electromagnetic or optical signal transmission, e.g. by ultrasound or infrared radiation) - Switch, dimmer or socket with timer - Dimmer with automatic brightness adjustment - Module with built-in electronics for light organ and connection to phono device - connection module for ceiling and wall lamp sensor switches or dimmers.

The connection contacts 11 and 12 are each connected to a wire clamp 13, in which a wire that can be inserted into the can from the outside is clamped with a screw 14 can be. The central connection contact 12 is formed by a banjo screw, at the same time for fastening a contact protection plate covering the remaining contacts 11 15 is used on the can body. In the touch protection plate 15, a number are eccentric arranged through openings 16 are provided, which on one side in narrow, circularly curved slots 17 pass over.

On the back of the insert module 20 are four in the circumferential direction offset from one another, provided with right-angled bends 22 Contact tongues 21 and a centrally located contact pin 23, which are in corresponding Recesses or depressions 24 of the module housing anchored and through wall openings 25 connected to the connection or switching device located inside the housing are.

A cover plate 27 is also provided on the insert module 20, in FIG which the respective operating and connection organs 28 can be integrated. These The unit is expediently adjustable in height on the rear one that carries the contact tongues Insert part attached so that on the one hand, especially when the box is flush-mounted, a tolerance compensation is possible and on the other hand different cover plates Designs can be attached to a module.

Of the socket contacts 11, 12, depending on the function of the used At least two modules must be connected to the electrical network. A maximum Flexibility is achieved by connecting all contacts, i.e. by a five-wire connection achieved. The phase, the neutral conductor, the protective conductor and two connections are then available for switching functions to disposal. By appropriately coding the Contact tongues that have a distinctive shape or geometric Arrangement of the contact tongues 21 and the associated passage openings 16 take place the establishment of faulty connections is avoided.

To prevent theft, a bracket 18 is provided in the If required, e.g. when used in public buildings, a mortise lock is used can be.

When inserting the insert module 20 is initially axially opposite to Force of the pressure spring 29 acting on the contact protection plate 15 so in the Can 10 pushed in that the central contact pin 23 into the contact opening 12 introduced and the contact tongues 21 with their bends 22 widened by the Passage openings 16 are passed in the contact protection plate 15. Then the insert module 20 is rotated relative to the socket 10 until the contact tongues 21 with their legs 26 are located in the slot area and with their bends 22 reach behind the edge zone of the respective slot 17. This creates a form- and a positive connection between the insert module and the socket. By accruing the Contact tongues 21 on the associated socket contacts 11 are required at the same time electrical connections made.

By turning in the opposite direction and pulling out the insert module 20 for the purpose of exchanging or exchanging for a different module take it out of the can 10.

Claims (15)

Equipment for the installation of electrical switching and connection devices in buildings claims 9 device for the installation of electrical switching and Connection devices, such as switch1 sockets, dimmers, lamp connections, etc., in buildings, with a box that can be mounted on or under plaster to accommodate a the insert containing the switching or connecting device, d a d u r c h g e k It is indicated that there are at least two in the box (10), each with a wire clamp (13) connected contacts (11, 12) covered by a touch protection plate (15) are arranged and that the switching or Connection device containing, designed as a replaceable module Insert (20) a number through corresponding openings (16) in the contact protection plate (15) through with the socket contacts (11, 12) can be brought into surface contact with contact tongues or pins (21,23) and directly by a rotary and / or latching connection can be fixed positively and non-positively in the box. 2. Device according to claim 1, d a d u r c h g e k e n n z e i c h n e t that at least some of the contact tongues or pins (21) of the insert module (20) is provided with projections or bends (22) by corresponding Openings (16) of the contact protection plate (15) can be passed through and the contact protection plate when turning the insert module in the manner of a bayonet lock with a positive fit reach behind. 3. Device according to claim 1 or 2, d a d u r c h g e -k e n n z e i c h n e t that one of the contact pins (23) axially over the back of the Insert module (20) protrudes and in a corresponding, inside the box (10) arranged central contact opening (12) can be inserted. 4. Device according to claim 3, d a d u r c h g e -k e n n z e i c h n e t that the contact protection plate serving as a stop surface for the insert module (20) (15) is arranged adjustable in height in the can (10). 5. Device according to one of claims 1 to 4, d a -d u r c h g It is not noted that the insert module is one of two mutually height-adjustable Has parts existing housing, one of which is the contact tongues or -pins (21,23) and the other part one with the operating elements (28) of the switching or connection device provided cover plate (27) contains. 6. Device according to claim 5, d a d u r c h g e k e n n -z e i c h n e t that the controls (28) and the cover plate (27) releasably on the the contact tongues or pins (21,23) containing the housing part are attached. 7. Device according to one of claims-l to 6, d a -d u r c h g e k e n n n n e i n e t that part of the contact tongues or pins (21) and the associated openings (16, 17) are arranged offset from one another in the circumferential direction are. 8. Device according to one of claims 1 to 7, d a -d u r c h g e k e n n n n e i c h n e t that at least one of the contact tongues (21) or one the contact pins and the associated opening vary in terms of their dimensions differ from the other contact tongues or pins and their openings. 9. Device according to one of claims 1 to 8, d ad u r c h g e does not indicate that the contact tongues or pins and the associated Openings a different distance from each other and / or from the insert or 'can axis. 10. Device according to one of claims 1 to 9, d a -d u r c h g e k e n n n n e i n e t that the insert module (20) additionally with the help of a Safety lock (18), e.g. a mortise lock, can be fixed on the socket (10) is. 11. Device according to one of claims 1 to 10, d a -d u r c h it is noted that the contact protection plate (15) by means of a Screw connection (12) can be releasably fastened in the box (10). 12. Device according to claims 3 and 11, d a d u r c h g e k It is noted that the screw is provided with the contact opening (12) Hollow screw is formed. 13. Device according to one of claims 1 to 12, d a -d u r c h it is not noted that the contact tongues or pins (21,23) and the Socket contacts (11, 12) are resiliently pressed against one another in the state of surface contact are. 14. Device according to one of claims 1 to 13, d a -d u r c h it is noted that the insert module (20) against the force of a axially acting compression spring (23) can be introduced into the box (10) and fastened therein is. 15. Device according to one of claims 1 to 14, d a -d u r c h g e k e n n n z e i c h n e t 1 that five contacts (11, 12) are arranged in the socket (10) are.