FR3087052A1 - ELECTRICAL BOX - Google Patents

Abstract

Electrical distribution cabinet comprising a frame, a door (2), and articulation means (4) for bringing the door between a closed position and an open position, characterized in that the articulation means (4 ) are invisible hinges of the kitchen cabinet hinge type.

Description

DESCRIPTION

TITLE: Electric box

The invention relates to an electrical cabinet intended to house various electrical devices inside, and comprising a closing door movable in rotation.

The standards for residential buildings impose different obligations with regard to electrical equipment and interfaces. Also, it is usual to use enclosures with closing doors that house an electrical panel and all the interfaces necessary for an electrical installation in a home.

Generally known boxes are made of metal and of parallelepiped shape which are designed to be associated with drywall walls. This type of cabinet includes a chassis, a closing door and interior dasseauxqui allow the attachment of electrical equipment. The cabinet is housed in a window cut out of the partition and comes in a wall-mounted frame / peripheral flange of the chassis against the external face of the partition; the chassis is fixed by fixing screws which cooperate with oblong bores made in the vertical walls and according to the horizontal of the box, by screwing into the metal profiles (or wooden battens) at the rear of the partition on which the BA13 type plasterboard is mounted.

When the door is fixed to the chassis, the door has a door frame which is fixed by screwing on the peripheral collar of the chassis of the cabinet or on the partition around the chassis. The door also has a plate with a perpendicular internal return in which are arranged hinge parts; however, these hinged parts create a space between the frame and the door to allow the door to rotate, which is far too visible, which is by no means aesthetic. Fàr elsewhere, the door frame combined with the door plate with its perpendicular return form a very imposing whole with a consequent thickness. & more, the assembly requires a lot of raw material, not contributing to a reduction in manufacturing costs. Finally, the implementation is tedious.

In addition, the standard NFC15-100 for electrical installations of residential buildings has recently imposed "an adjoining or integrated volume on the communication board, with minimum dimensions 240 x 300 mm x 200 mm. This volume can accommodate the equipment of the electronic communications operator and additional equipment. " Such a volume must therefore allow the hosting of an Internet box. However, the existing boxes are all of standard depth of 160 or 180 mm; they cannot accommodate a volume of depth of 200 mm, and therefore do not meet the new requirements of the standard.

The invention therefore aims to provide an electrical box with closing door, which does not have the aforementioned drawbacks, and in particular provides an external bulk, in particular in thickness, which is reduced, a reduction in the raw material, simplicity of implementation, while offering an interior volume adapted to the new standard NFC15-100, and incidentally provides an aesthetic line.

According to the invention, the electrical distribution box comprising a frame, a door, and articulation means for bringing the door between a closed position and an open position, is characterized in that the articulation means are invisible hinges. The term "invisible hinge" means a hinge that cannot be seen in the closed position of the door. Such a hinge is of the hinge type for cupboard or kitchen furniture.

& particular, the invisible hinge comprises a first fixing part which is fixed in one of the side walls of the chassis, a second fixing part which is fixed on the internal surface of the door, and a connecting and articulation part which is integral and connecting the two fixing parts and allowing the relative movement of the door between an open state and a closed state with respect to the frame, said connecting and articulation element being housed inside the frame (and not of the door ) in the closed position of the door.

& in addition, the invisible hinge has its connecting and articulation part which is deployed (in a horizontal plane relative to the vertical mounting of the door). Such an invisible hinge known as a deployment is particularly clever for the intended application.

The invisible hinge with deployment ensures that the door can be pressed directly against the partition without requiring clearance between the door and the chassis of the cabinet. The deployment connecting piece allows, when the door is opened, to offset the door at the same time with respect to the frame so that the edge of the door does not abut against the partition or the frame.

Thus, the use of invisible hinges makes it possible to dispense with the use of a doorframe frame as in interior art; the door is directly fixed inside the chassis of the cabinet. We gain in quantity of material, cost of manufacture, simplicity of manufacture and speed of implementation. In addition, the invisible hinges with deployment do not generate any additional thickness at the level of the cabinet, due to the compactness of the mechanism, and the door can then be pressed against the chassis of the cabinet.

As expected, it has never been considered to use invisible deployment hinges for an electrical box.

According to one characteristic, the door comprises a plate having an internal face (intended to be turned towards the interior of the cabinet, and an opposite external face), and a peripheral edge forming a return of the plate on the side of the internal face, said return being biased over all or part of at least one vertical edge and converging towards the internal face, preferably the return being of the order of 5 mm.

The door has a total thickness of less than 10 mm, preferably of the order of 5 mm. Ansi, the door has an extra-flat appearance, giving it a very refined line and blending into the wall to which the cabinet is attached.

In addition, the biased edge eliminates the need for an external handle, as it allows the passage of a finger to open the door. & variant, the door may include on its internal face and at its edge a recess / a recess for cooperation with a finger.

According to another characteristic, the frame has an open front face delimited by a peripheral flange (from the lower, upper and side walls of the frame), and in that the door has a (solid) plate whose surface area is greater than the face open from the chassis and to the peripheral flange, so that it is intended in the assembled position of the box in the partition to be pressed directly against the partition. Ansi, this reinforces the extra-flat design of the door and therefore of the cabinet; we do not see the unsightly edge of the peripheral collar as in the state of the art.

& furthermore, the door is kept closed thanks to the deployment hinges. There is no need for magnetic latches as in the prior art. Céla further simplifies the box and lowers the manufacturing cost.

Advantageously, the chassis has slots in each of which is intended to be slid a part of an invisible hinge (the hinge also abuts against latent), in particular a hinge comprising a first fixing part whose distal end is slid in the slot and a connecting and articulation piece which abuts against said slot. The slots are arranged in the frame (the walls of the frame) and possibly in the interior of the door (without being through with respect to the thickness of the door). Two facing slots accommodate each hinge fixing part. Each slot advantageously serves to hold the hinge in position. The slots also make it possible to minimize the number of fixing screws. A single fixing screw is sufficient to fix the hinge part associated with the latent, in particular the latent of the chassis. As for the hinge piece to be fixed on the door, two fixing screws are enough, but a single screw could be suitable if another slot is provided on the door to accommodate the other hinge piece.

According to yet another characteristic, the chassis preferably has a bottom which is open over its entire section, possibly the bottom comprising a peripheral return or punctual perpendicular extensions for the fixing of battens.

Preferably, the box comprises lights and chassis fixing parts, the lights and chassis fixing parts comprising means of mutual cooperation by mechanical engagement and the parts being adjustable relative to the depth of the chassis.

The chassis fixing parts comprise hooking means (without screwing) projecting from the outside of the chassis and being able to cooperate with a drywall (rear face of the partition or in the thickness of the partition) Ansi, l The operator who installs the cabinet no longer needs a screwdriver to secure the cabinet.

According to yet another characteristic, the box comprises a device for housing telecommunication means such as an Internet box, this device being intended to be fixed inside the chassis (without protruding from the front face) and possibly intended to protrude from the chassis bottom which is open.

Advantageously, the housing device forms a box, preferably rectangular and open on the whole of one of its faces. The device comprises a rigid frame and a flexible envelope integral with the frame. Ansi, the device is easily stackable for storage and transport. The flexible folding envelope, flattening, and the devices being stackable via their frame.

The housing device comprises a rigid frame and a flexible envelope integral with the frame, preferably the envelope has a bottom which is full and has holes which may have knockouts or be closed by nipples detaching by traction.

Preferably, the device comprises means of rapid fixing with the chassis such as by snap-fastening.

According to one characteristic, the box comprises a chassis, the bottom of which is open (at least in part, according to a so-called open space) and in that the reception / accommodation device is fixed inside the chassis and its flexible envelope. is able to protrude from the bottom (at the level of the open space). The depth of the box is thus extended quickly and easily thanks to the box of the invention and the open space at the bottom of the chassis. The chassis of the box can thus keep a usual depth of 160 or 180 mm.

Advantageously, the reception device / box has the following dimensions: at least 240 mm by at least 300 mm and by at least 40 mm, the minimum dimension of 40 mm corresponding to the depth of the box. Ansi, the device / box, associated with the bottom of an electrical box and projecting from said bottom, allows for an electrical box 160 mm deep to reach a total depth with the device of 200 mm, which corresponds to the minimum. required by standard.

In the following description, the term "height", the qualifiers "upper", "lower", "high" and "low" of an element of the box and of the device for receiving a box , are used as part of a normal installation of the box, that is to say relating to a vertical notion of fixing.

The present invention is now described with the aid of examples which are only illustrative and in no way limit the scope of the invention, and from the attached illustrations, in which:

Figure 1 is a front perspective view of an example of an electrical box according to the invention with the door open;

Figure 2 is a perspective view of the rear of the box of Figure 1 with the closed door shown without the fixing brackets;

Figure 3 is a side view of the box of Figures 1 and 2;

Figure 4 is a perspective view of a corner of the cabinet showing the door partially in section;

Lafigure5 is a detailed perspective view of the interior of the box showing the door fixing means, the door being open;

Figure 6 is a perspective view of a detail of a fastening part of the cabinet allowing the attachment of the cabinet to a partition;

Lafigure7 is a detailed perspective view showing the rear of the partition and the rear of the fastener of Figure 6 in the mounted position in the frame and associated with the partition; FIG. 8 is a front perspective view of a reception device according to the invention intended for housing an Internet box, the device being intended to be installed in the box of the invention;

Figure 9 is a rear view of the device of Figure 8;

Figure 10 illustrates a front perspective view of the device of Figure 8 in the mounted position in the cabinet according to the invention, the cabinet door not being illustrated;

Figure 11 is a side view of Figure 10 without the cleats shown.

The electrical box 1 of the invention illustrated in the figures comprises a chassis 10 delimiting an interior space 11, a closing door 2 capable of closing the facade of the chassis and mobile in rotation, and wooden battens 3 for fixing rails here not illustrated intended for receive devices ^ electrical interfaces to be housed in the interior space 11.

The box 1 is intended to be embedded in a window cut out from a wall / drywall 1A (Figures 7, 10 and 11).

The frame 10 and the door 2 are made of metal and / or plastic.

The chassis 10 is of generally parallelepiped shape. It includes an open bottom 11A, a completely open front 11 B, and four walls, including two lower 12 and upper 13 and two opposite side walls 14 and 15. The walls have, at the front opening 11 B, a perpendicular return 16 forming a frame / a peripheral flange which is intended to come into contact against the external face of the partition facing the external environment.

The door 2, in the installed position of the cabinet, is vertical and opens by rotation from a lateral edge of the chassis 10.

The door 2 is mounted directly on the chassis 10 of the box without an interface frame.

The door 2 comprises a plate 20 having an internal face 21 and an opposite external face 22. The plate 20 is a flat sheet metal plate of reduced thickness, and having a return 23 such that the total thickness of the plate is 1 '' order of 5 mm.

Advantageously, the return 23 at least along a vertical side 23A is biased by being converging towards the internal face 21 of the plate (Figure 4). Preferably, the door 2 is devoid of a handle, the biased return 23 allowing the door to be gripped by the passage of a finger of the user to open the door by traction.

According to the invention, the box comprises means 4 for fixing and pivoting the door which are composed of hinges said to be invisible, such as those for kitchen furniture or cupboards.

The plate 20 of the door and the invisible hinges 4 provide an extra flat door which almost does not protrude with respect to the partition, by protruding only about 5 mm.

An invisible hinge 4 with deployment (FIG. 5) comprises a first fixing part 40 which is fixed in one of the side walls 14, 15 by at least one screw 40A (one screw being sufficient due to the presence of a slot for holding 17 according to the invention described below), a second fixing part 41 fixing on the internal face 21 (through fixing zones 24) of the (plate of the) door 2 via at least two screws 41A and 41 B, and a connecting and articulation part 42 integral with and connecting the two fixing parts 40 and 41 and allowing the relative movement of the door between an open state and a closed state with respect to the chassis 10; in the closed position of the door, the connecting and articulation element 42 is housed inside the frame and not of the door.

Preferably and according to the invention, the plate 20 has on its internal face 21 fixing zones 24 for the second fixing parts 41 of the hinges 4; each fixing zone 24 forms a projecting surface with respect to the internal face 21 and provides a hollow space 25 between said internal face 21 of the plate and said surface 24 so as to receive the body of the fixing screws 41A and 41B without those -d do not cross the door plate 2.

According to the invention, the wall 14, 15 of the chassis advantageously comprises a slot 17 with which is intended to cooperate each hinge 4. Each slot 17 is positioned in a suitable manner to be at the same level as each fixing surface 24 of the door. Each slot 17 extends parallel to the vertical of the cabinet.

Latent 17 serves as a quick identification means for arranging the first fixing part 40 of a hinge 4, and allows a temporary hold before fixing with the screw or screws.

More particularly, each slot 17 receives the free end 43 of the first fixing part 40 by insertion / sliding until the connection and articulation part 42 comes into abutment.

Preferably, the box 1 comprises at least two invisible hinges 4 for the door 2. It may include more in number depending on the height of the door. The number of slots 17 is machined according to the number of hinges to be received.

Preferably, the two side walls 14 and 15 of the chassis each have slots 17 for arranging the door either on the right side or on the left side, FIG. 1 showing the door mounted on the right side.

Each slot 17 forms a T-shaped cut, the T-shaped bar corresponding at least to the width of the fixing piece 40 so that it is introduced into this cut and passes on the external side of the chassis wall, and up to that the base 43 of the connecting piece 42 abuts against the edge of the T-shaped cutout (Figure 5).

& variant, the door 2 may also include in the fixing zones 24 a reception slot for the second hinge part 41, and thus block it in position. In this embodiment, a single fixing screw 41A would suffice to fix the hinge part.

Preferably, the metal box 1 comprises a grounding wire 1B (FIG. 5) which is electrically connected by simple mechanical contact, via a screw for example, to the door

2. This wire is of sufficient length to run inside the chassis 10 and is intended to be connected to the ground of the dwelling.

The chassis 10 has other technical characteristics, in particular for its attachment to the bulkhead, and for housing an Internet box.

& with reference to FIGS. 4, 6 and 7, the box 1 comprises for its fixing, removable fixing parts 5, while the chassis 10 has slots 18 in its side walls 14 and 15 with which said fixing parts 5 cooperate.

The fixing pieces 5 are preferably made of plastic. Wheat ensures the fixing of box 1 without screwing. They co-operate directly with the partition as illustrated in FIG. 7. The lights 18 and the parts 5 comprise means of mutual cooperation by mechanical engagement for the maintenance of the parts in said lights. In addition, the parts are capable of being movable in the lights up to the desired position for fixing, either in the thickness of the partition when the latter is dimpled, or against the internal face of the partition (the face which is hidden from the user). The means of mutual cooperation consist of a plurality and alternation of notches 18A at the level of the lower and upper edges of the slots 18, and of the teeth 50 on two opposite sides of the parts, so that the teeth 50 engage in cooperation in the notches 18A like a rack. This engagement keeps each part firmly in position 5.

& further, each part 5 has on one of its faces pins 51 extending laterally projecting and towards the outside of the box to come into grip and in compression against the partition 1A.

However, the frame 10 may include, as illustrated in the figures, oblong lights 19, which are the usual ones in an electrical box frame, for if necessary fixing the box by screwing with fixing screws.

Regarding the fixing of electrical equipment, it is intended to be done via the brackets 3 as is usual. However, if the cleats are usually fixed inside the chassis, they are preferably according to the invention fixed outside the chassis to gain depth of arrangement in the interior space 11. Their fixing is for example carried out against attachment ears including at least one upper ear 11Cis visible in FIG. 10; the ears are coplanar with the open bottom 11A and extend towards the outside of the chassis opposite the lower and upper walls in order to bring there externally to the chassis at least one vertical and central cleat 3, and similarly other ears extend in edge of the frame and from the side walls for fixing angle brackets.

According to the invention, the chassis 10 has its bottom 11A open over the entire surface (FIGS. 1 and 2). Céla notably allows for easy passage for electrical cables to be wired to electrical equipment.

In addition, the open bottom 11A provides according to the invention a volume adjoining the box as required by standard NFC15-1000.

According to the invention, certain devices, in particular telecommunications such as an Internet box, may thus protrude beyond the rear of the chassis 10 without necessarily having to increase the depth of said chassis during its manufacture. The chassis 10 can remain at the usual depth of 160 mm.

According to the invention, the box 1 includes a device 6 dedicated to housing a telecommunication device such as an Internet box. This device is semi-closed to serve as a reception and support volume by projecting into the void at the rear of the chassis 10 while being closed on the rear to accommodate the box without risking that it will fall to the 'rear of the chassis.

The device 6 illustrated in FIGS. 8 to 10 comprises a rigid frame 60 and a flexible envelope 61 integral with the frame 60. The device has an open front face 62, preferably according to the totality of the section of the device, that is to say - say bounded by the frame 60. The device is therefore open on the front and closed on the rest of the body, the interior being hollow to provide a volume suitable for an Internet box.

The device has solid peripheral walls 63 which are formed by the frame 60 and the flexible envelope 61 when it is in a deployed state.

The flexible envelope 61 has a solid bottom or rear face 64.

The flexible envelope 61 is for example made of a thermoplastic polyurethane (TPU), or a thermoplastic elastomer (TPE) such as a polystyrene-b-poly (ethylene-butylene) -bpolystyrene (SEBS).

The rigid frame 60 is for example made of polypropylene (PP).

The frame and the envelope are for example manufactured according to a bi-injection molding.

Preferably, the device is of parallelepiped shape.

The device 6 comprises fixing means 65 to be made integral with the interior of the chassis 10. The fixing means are quick-fixing (without screwing), preferably by clipping or snap-fastening. The fastening means 65 comprise for example male elements integral with the frame 60 and projecting towards the outside of the device, such as substantially elastic latching tabs. The male elements 65 are preferably arranged near each of the corners of the frame 60.

The chassis 10 comprises female elements 19A into which the male elements are intended to be introduced. The female elements are for example oblong orifices in each of the four walls of the chassis. The female elements 19A are near the rear edge of the chassis (the rear edge of the walls) and the bottom 11.

The female elements 19A are arranged in the appropriate places of the chassis in order to arrange the device 6 in one of the corners of the chassis, in particular in a lower or upper corner and opposite to that carrying the hinges 3.

The device 6 is fixed to the rear of the chassis, advantageously extending beyond the bottom 11, providing a total depth for the box adapted to the standard.

The device 6 is fixed via its frame 60 by two of its sides, a vertical and a horizontal to the chassis 10. It is clipped by engagement of the male elements 65 in the female elements 19A, for example to the bottom wall 12 and to the one of the vertical walls (to the vertical wall opposite the wall intended to carry the hinges).

Fixing bores 66 are also provided in frame 60 of the device for fixing the device 6 by screwing against a cleat 3, at least on the other vertical side of the device which is opposite to the wall of the chassis (FIG. 10).

As an example, device 6 has dimensions of 250 mm wide by 300 mm high and 40 mm deep. & fixing this device 6 at the bottom of the chassis, this makes it possible to increase the depth of the chassis by passing to 200 mm compared to a chassis which is initially 160 or 180 mm deep. The box with the device thus makes it possible to comply with the standard.

The flexible envelope 61 is deployed to extend and protrude in a vacuum relative to the open bottom 11Adu chassis, in particular 40 mm (Figures 10 and 11).

The bottom 64 of the flexible casing 61 advantageously comprises holes 67 which are preferably closed by knock-offs of plastic material or teats 68 of plastic material detaching by traction from the interior of the casing, lestrous 67 allowing the passage of cables, in particular FU45 cables.

Claims (10)

1. Cbffret electrical distribution comprising a frame (10), a door (2), and hinge means (4) for bringing the door between a closed position and an open position, characterized in that the means hinges (4) are invisible hinges, in particular invisible hinges for deployment. 2. Cbffret according to claim 1, characterized in that the door (2) comprises a plate (20) having an internal face (21), and a peripheral edge forming a return (23) of the plate on the side of the internal face , said return being biased over all or part of at least one vertical edge and converging towards the internal face, preferably the return (23) being of the order of 5 mm. 3. Cbffret according to claim 1 or 2, characterized in that the chassis comprises an open front face (11 B) delimited by a peripheral flange (16), the door (2) comprising a plate (20) which is intended to be flatten directly against the partition that will accommodate the cabinet. 4. Cbffret according to any one of the preceding claims, characterized in that it comprises slots (17) in each of which is intended to be slid a part of a hinge, the slots being arranged in the frame and possibly in the interior Door. 5. Cbffret according to any one of the preceding claims, characterized in that the frame (10) comprises a bottom (11 A) which is preferably open over its entire section, possibly the bottom comprising a peripheral return or perpendicular point extensions (11Q for fixing battens (3). 6. Cbffret according to any one of the preceding claims, characterized in that it comprises lights (18) and parts (5) for fixing the chassis, the lights and the chassis fixing parts comprising means of mutual cooperation (18A, 50) by mechanical engagement and the parts being adjustable relative to the depth of the chassis. 7. Cbffret according to any one of the preceding claims, characterized in that it comprises fixing parts (5) of the chassis which comprise hooking means (51) projecting from the outside of the chassis and being able to cooperate with a drywall. 8. Box according to any one of the preceding claims, characterized in that it comprises a device (6) for housing telecommunication means such as an Internet box, this device being intended to be fixed inside the chassis and possibly beyond the bottom (11A) of the chassis which is open. 5 9. Box according to the preceding claim, characterized in that the device (6) comprises a rigid frame (60) and a flexible envelope (61) integral with the frame, preferably the envelope having a bottom (64) which is full and has holes (67) which may have knockouts or be closed off by teats (68) detaching by traction. 10. Cbffret according to claim 8 or 9, characterized in that the device comprises 10 quick fixing means (65) with the frame by snap / clipping.