FR2873862A1 - Distribution box functionality adding device for e.g. electrical installation of office, has double sided printed circuit with connection terminals opposite to partitions of equipment housing case, and conductors for connection of equipment - Google Patents

Abstract

The device has a double sided printed circuit (3) on which 4 groups of 5 connection terminals (4) are welded and connected electrically by tracks of the circuit. The terminals are disposed opposite to 4 precut partitions, of an equipment housing case (1), allowing the passage and entry of multi-conductor sheaths. 5 output conductors (5, 6) with one end welded on the circuit permit the connection of equipment fixed to the case.

Description

The present invention relates to a device for adding a

  Bypass box functionality inside a flush mounting box used in the realization of electrical installations.

  Traditionally: - The distribution of the circuits of an electrical installation requires the presence of junction boxes which must remain accessible and therefore often visible and therefore often unsightly in a decorated environment. to limit the number of junction boxes, circuit supplies made from the same protection device are taken from the distribution table. This requires the presence of several conductors on each of the terminals of the protection member (unipolar protection circuit breakers or fuse holders) and leads to use longer lengths of multi-conductor sheaths.

  the space available inside the flush-mounting boxes is not sufficient to receive several connection elements.

  In order to eliminate this problem the present invention proposes to add a branch box functionality to the fitting box. The device according to the invention allows: the connection of the power supply of the circuit coming from the distribution board or another flush-mounting box of the equipment the electrical connection of the device mounted on the flush-mounting box the power supply electrical other secondary circuits the supply and distribution of other control and power devices of the circuit To meet the requirements of small footprint, it comprises in fact according to a first characteristic, a double-sided printed circuit whose form is specially adapted the physical characteristics of the fitting box. This printed circuit has on each of its faces A and B connection tracks for ensuring the connections and electrical connections of the various components. Welded on the face A of the printed circuit, next to the 4 pre-cut partitions of the equipment installation box allowing the passage of the multi-conductor sleeves and the arrival of the conductors in the box, are implanted 4 groups of 5 connection terminals which allow the connection and wiring of the conductors contained in the distribution ducts of the installation.

  Welded on the side A of the printed circuit at one of their ends, five wiring conductors make it possible to connect the control or power equipment to the other end.

  The attached drawings illustrate the invention: FIG. 1 represents the standard equipment mounting box (1) in which the invention and the associated equipment (2) are integrated. FIG. 2 represents the circuit cutting plane printed (3) FIG. 3 represents the plane of the track layout of the double-sided printed circuit board (3) (face A and face B). FIG. 4 represents the mounting plane and the implementation of the connection terminals (4) soldered on the printed circuit (3) - Figure 5 shows the wiring diagram of the soldered conductors on the printed circuit at one end (5) (6) Figure 6 shows the color code used for the identification of the connection terminals for the Identification of their function FIG. 7 represents the assembly plan and the integration of the invention in the fitting box (1). FIG. 8 shows the block diagram of the electrical connections of the device of the invention. Figure 9 illustrates the u use of the invention in an installation comprising a remote controlled circuit by remote switch or power contactor located in the distribution table of the installation and pushbutton FIG. 10 illustrates the use of the invention in an installation comprising a controlled circuit by a single ignition switch FIG. 11 illustrates the use of the invention with a direct feed circuit With reference to these drawings, the device according to the invention is composed of: a double-sided printed circuit (3) - 4 groups of 5 connection terminals (4) - 5 output conductors (5) (6) for connecting the switchgear (2) fixed to the flush-mounting box (1).

  The circuit board (3) is specially designed and cut according to Figure 2 to match the shapes of the flush mounting box (1) to integrate perfectly in the bottom thereof.

  A 15mm diameter cylindrical orifice in the center of the printed circuit board (3) allows the passage of a threaded rod for fixing the box specially designed for ceiling mounted luminaire boxes.

  According to FIG. 5, 4 groups of 5 screw connection terminals (4) soldered on the face A of the printed circuit and arranged opposite the 4 pre-cut partitions of the flush-mounting box provided for the passage and the arrival of the multi-conductor ducts inside the flush-mounting box (1), allow the connection of a conductor with a maximum cross-section of 2.5mm2. The connection terminals (4) are voluntarily dimensioned to allow the clamping of a single conductor.

  These 4 groups of 5 screw terminals (4) are connected and connected together by the tracks of the printed circuit (3) sized to accept a rated current of 16A at 220V.

  3 conductors (5) of a section of 2.5mm2 soldered on the side A of the printed circuit board (3) at one of their ends and respectively of color Blue, Brown, Green / yellow allow to connect at the other end an apparatus (2) power either the socket of a lamp or a socket.

  2 conductors (6) of a section of 2.5mm2 soldered on the side A of the printed circuit board (3) at one of their ends and respectively of Red and Black color allow to connect at the other end an apparatus (2) of control either a push button or a switch.

  According to FIG. 6, the function of each of the terminals (4) soldered on the side A of the printed circuit (3) is identified by means of a color code identical to that used for the identification of the wiring wires (depending on the specificities and recommendations made by the country standard). (Example in France Blue = neutral, Red = phase, Black = phase cut off by a control device, Brown = receiver power supply, VerUJaune = earth conductor).

  The present invention makes it possible to fulfill several functions thanks to the various wiring configurations offered so as to meet the needs encountered during the realization of electrical installation: According to the connection diagram of FIG. 9, the power supply, the distribution and the wiring remote controlled circuits by remote control switch or power contactor located in the distribution table of the installation. This configuration requires the distribution of 5 conductors which will be connected to each of the terminals in accordance with the colors corresponding to each of the functions described above. The ends of unused conductors depending on the case (Blue, Brown, Green / Yellow) or (Red, Black) are isolated and connected to free terminals of potential domino type.

  - According to the connection diagram of Figure 10, the power supply and the wiring of the simple circuits not remotely controlled from the Neutral (blue), Phase (red) and Green / yellow (earth) conductors connected under the protection element ( breaker or circuit breaker) located in the distribution board. This function is achieved by bridging the Black and Brown terminals using a 2.5mm2 conductor that disables the remote control function. The ends of unused conductors depending on the case (Blue, Brown, Green / Yellow) or (Red, Black) are isolated and connected to free terminals of potential domino type.

  According to the connection diagram of FIG. 11, the direct supply without a control device of a circuit of electrical outlets. This function is ensured by the connection of the red and black wires using a domino type connector at the output of the printed circuit so as to simulate the presence of a control member in the closed position. The ends of unused conductors depending on the case (Blue, Brown, Green / Yellow) or (Red, Black) are isolated and connected to free terminals of potential domino type.

  According to a variant that is not illustrated, the clamping screw terminals (4) can be replaced by screwless quick-connect terminals.

  According to a variant not illustrated, the color code used to identify the function of the conductors and associated terminals may be modified according to the recommendations of applicable standards and in force in countries other than France.

  By way of non-limiting example, the complete device according to the invention could be integral with the equipment fitting box making the two parts inseparable by providing the same equipment fitting functions and junction boxes could be The present invention integrates with: - all existing electrical installations in the context of modifications and / or modifications compliance - all new electrical installations in the tertiary sector (housing, offices, retail space) 30

Claims (5)

-5-CLAIMS   1) Device for adding a junction box functionality inside a flush mounting box used in the circuit distribution of electrical installations characterized in that it comprises a printed circuit (3) double face provided with connection tracks making it possible to provide the electrical connections between 4 groups of 5 connection terminals (4) soldered on the side A of the circuit and 5 output conductors (5) (6) allowing the wiring of the apparatus ( 2) fixed to the flush-mounting box (l).   2) Device according to claim 1 characterized in that the double-sided printed circuit (3) is specially designed and cut according to Figure 2 to match the shapes of flush mounting boxes (1) and integrate perfectly in the bottom of it.   3) Device according to claim 1 or claim 2 in that the double-sided printed circuit (3) is provided with a cylindrical orifice with a diameter of 15mm allowing the passage of a threaded rod for fixing the boxes. installation (l) of ceiling mounted luminaires 4) Device according to any one of the preceding claims characterized by the presence of 4 groups of 5 connection terminals (4) welded to the side A of the printed circuit (3), electrically connected to each other through the tracks thereof, marked with colors identifying their function and according to the recommendations of the applicable standard in the country concerned, located opposite the pre-cut partitions of the flush-mounting box of the switchgear (1) making it possible to connect and distribute the others circuits of the electrical installation distributed by the multi-conductor ducts.   5) Device according to any one of the preceding claims characterized by the presence of 5 conductors identified by a color code identical to the color code used for the identification of the connection terminals, soldered at one of their ends to the side A of the circuit printed and allow the other end to connect the switchgear (2) attached to the flush-mounting box (1)