FR2765769A1 - Telecommunications cabinet weather protection shutter for mobile telephones - Google Patents

Abstract

The telecommunications cabinet weather protection shutter forms part of an electronics relay storage cabinet (1). The cabinet has two front opening doors (11a,11b). To prevent bad weather ingress, there is an upper shutter (MP) which rest on the top of the two cabinet doors when they are opened. The shutter opens automatically above the cabinet when the lower doors open.

Description

TRANSMISSION EQUIPMENT CABINET
The present invention relates to telecommunication transmission relays by mobile telephony and more particularly to cabinets or premises which are intended to contain the transmission equipment.

 The current development of telecommunications by mobile telephony and their particular mode of operation by radio transmission obliges the various operators to have a transmission network aiming to cover the entire territory in order to allow each user to be able to call and be called from anywhere. what a place of it. Thus, the radio transmission network must be meshed in order to best meet this obligation and, as a result, transmission relays are multiplying in the territory in order to route communications to their recipient by achieving the most complete mesh possible. The transmission relays are in the form of a cabinet or a room most often arranged externally as, for example, on the roof of a house, inside which are installed the various devices necessary for reception and the transmission of communications such as the radio bay, the energy bay and the France Telecom beam, for example.

 We already know several types of cabinets intended to be positioned in nature or on the roof of a building, for example.

However, this type of construction is not satisfactory in many cases and has many drawbacks inherent in particular in their operation or their location. Indeed, some places intended to be equipped leave only a reduced space for the installation of relays such as, for example, in the mountains or in cable car stations or others. Thus, the size of the cabinets is reduced and in the event of a breakdown or malfunction, intervention on the transmission devices it contains, such as the radio rack among others, is very delicate, if not impossible. Furthermore, during such an intervention, the repair as well as the opening of the cabinet doors, if it is located outside, cannot be carried out during inclement weather for reasons mainly related to the safety of repairers and the risk of damage to the electrical and electronic equipment contained in said relay.

 The present invention therefore proposes to solve the various aforementioned drawbacks thanks to a cabinet allowing in particular easy access to the various transmission devices constituting the relay and effective protection of said devices during repair under inclement weather.

 According to the main characteristic of the invention, the cabinet for transmission equipment intended to serve as a telecommunication transmission relay by mobile telephone is of the type comprising a front opening provided with a door intended to close it and is intended to be equipped with transmission devices, said cabinet includes protection means intended to protect the transmission devices against the weather when the door closing the front opening is open.

 According to one embodiment, the cabinet for transmission equipment is constituted by a set of walls held by a hot-dip galvanized metal structure, said cabinet comprising a rear wall, two side walls, a bottom wall, an upper wall and a face. front provided with the front opening, the protection means being constituted by a rolling shutter disposed on an extension of the upper front wall of the front face, said shutter being intended to extend by unrolling.

 According to a variant, the protection means are put in place automatically when the door is opened.

 According to another characteristic, the cabinet for transmission equipment comprises displacement means intended to allow the displacement of at least one transmission device.

 According to an additional characteristic, the displacement means allow the displacement of the transmission device from an initial operating position to a final intervention position.

 According to another additional characteristic, the displacement means are arranged in the cabinet so that, in the final intervention position, the rear facade of the transmission device is accessible to the repairer.

 According to one embodiment, the cabinet for transmission equipment is constituted by a set of walls held by a hot-dip galvanized metal structure, said cabinet comprising a rear wall, two side walls, a bottom wall, an upper wall and a face. front provided with the front opening, the displacement means being constituted by guide rails arranged transversely between the rear wall and the front face of the cabinet and by pads intended to equip the transmission device, said pads being intended to move along said rails.

 Furthermore, the cabinet includes air conditioning means intended to allow the temperature to be maintained between a maximum temperature and a minimum temperature which define an operating zone of the transmission devices.

 According to an additional characteristic, the cabinet for transmission equipment is provided with door locking means, said means comprising a lock controlled by a digital code control box and / or a key lock of conventional type.

 According to another characteristic, the cabinet for transmission equipment includes lightning protection means.

 Other characteristics and advantages of the invention will emerge from the description which follows with reference to the appended drawings which are given only by way of nonlimiting examples.

 Figures 1 to 10b illustrate an embodiment of the cabinet for transmission equipment according to the invention and its alternative embodiments.

 Figure 1 illustrates the cabinet in perspective.

 Figure 2 illustrates the cabinet open in top view with the protective means in place.

 Figure 3 illustrates the cabinet in perspective with the protective means in place.

 FIG. 4 illustrates an alternative embodiment of the protection means of the cabinet.

 FIG. 5a schematically illustrates the enclosure of the cabinet in section in a horizontal plane when the transmission devices are in the initial operating position, the cabinet being closed.

 FIG. 5b shows in a similar view the cabinet when it is open and the radio bays are in the final intervention position.

 FIG. 5c illustrates in a similar view the cabinet when the energy bay is in the final intervention position.

 Figure 6 illustrates in longitudinal section in a vertical plane the cabinet and the various transmission devices.

 Figure 7a shows the cabinet in cross section along AA.

 Figure 7b shows the cabinet in cross section along BB.

 Figure 8a schematically illustrates in side view a transmission device arranged on its guide rails in the initial operating position.

 Figure 8b illustrates in a view similar to Figure Sa the transmission device on its guide rails in the final intervention position.

 Figure 9a illustrates in cross section means of installing the cabinet against a wall.

 FIG. 9b illustrates in a view similar to FIG. 9a means of installing the cabinet on a platform.

 Figures 10a, 10b illustrate an alternative embodiment of the protection means of the cabinet.

 Figure 10a illustrates the cabinet in perspective with the protection means folded.

 Figure 10b shows the cabinet in perspective with the protection means in place.

 The cabinet according to the invention illustrated in FIGS. 1 to 8b and bearing the general reference (1) is intended to be equipped with transmission equipment (MT) in order to be able to serve as a relay in telecommunication systems by mobile telephony as shown in the Figures 5a, 5b and 5c. The transmission equipment (MT) comprises several transmission devices (15) and in particular at least one energy bay (2) and one or more radio bays (3a, 3b). Said bays are generally each constituted by a set of electrical, electronic or magnetic equipment grouped inside an enclosure called a bay, the dimensions of which are variable. The transmission devices also include a low-voltage distributor board (5) and a France Telecom beam (4).

 According to the preferred embodiment of the invention, the cabinet for transmission equipment (1) is advantageously of rectangular shape and thus comprises a set of walls or panels composed of two side walls (6a, 6b), of a rear wall (7), an upper wall (8a), a lower wall (8b) and a front face (9). It is provided with a metal structure or framework (12) which is advantageously hot-dip galvanized, making it possible in particular to hold the various walls or panels together. The different walls (6a, 6b, 7, 8a, 8b) constituting the covering of the frame can be advantageously made using insulating panels.

 Said cabinet (1) has in its front face (9) a front opening (13) provided with a door (10) movable between a closed position and an open position, as shown in Figures 1 and 3. Said opening (13) is intended to allow access to the transmission equipment (MT) arranged inside. According to the preferred embodiment of the invention, the front opening (13) extends substantially from one side wall (6a) to another (6b) from the bottom wall (8b) to an extension of front upper wall (9a) of the front face (9) extending vertically downwards (BA) from the edge of the upper wall (8a). The door (10) intended to close off said front opening is advantageously constituted by at least two panels (11a, 1b) articulated respectively along two vertical axes situated substantially at the lateral ends of the front face (9) near the lateral walls ( 6a, 6b), said articulation being produced by a hinge device of the type known per se. The door panels (1 la, 1 lob) are advantageously constituted by insulating panels of the same type as those constituting the assembly of the walls of the cabinet (1). The door (10) can advantageously consist of several panels hinged together and in particular by three panels of substantially the same size (lia, iib, lic) as in the illustrated embodiment. It goes without saying that the door (10) can be produced in many equivalent ways, without going outside the protective field of the invention. Note that the front opening (13) and the door (10) advantageously extend over the entire length of the front face (9) of the cabinet (1) so that in the position of opening each element or transmission device (15) of the transmission material (MT) is accessible from the front by its front face (15b).

 According to the invention, there are provided protection means (MP) intended to allow the protection of the transmission material (MT) against bad weather when the door (10) closing the front opening (13) is open, as shown Figures 2, 3 and 4. The protective means (MP) may advantageously consist of a roller shutter (17) disposed on the extension of the upper front wall (9a) and intended to extend by taking place in a plane substantially horizontal (H) defined by the upper edges of the articulated panels (i la, 1 lob) constituting the door (10). According to this preferred embodiment, the roller shutter is ready to take place when said hinged panels of the door (10) are arranged perpendicular to the front opening. Therefore, the upper edge of the panels can advantageously serve as a guide for the end rollers (18a, 18b) of said flap in a manner known per se. Thus, when the door (10) is opened, the repairer only has to unroll the flap (17) in order to be able to protect the transmission means (MT) of the cabinet (1) from the weather.

 Note that according to an alternative embodiment not shown, the protection means are constituted by a waterproof canvas blind manually operable by a crank and which takes place in a horizontal plane by a system of articulated arms of the toggle type for example. It goes without saying that protection means (MP) of a different type could be provided, the installation of which would take place automatically when the door (10) is opened without leaving the field. protection of the invention, the protection means (MP) can, for example, be constituted by an impermeable fabric which could extend automatically in the plane (H) when the door (10) is opened.

 Furthermore, according to an alternative embodiment illustrated in Figure 4, the protection means (MP) extend not only in the horizontal plane (H) located above the hinged panels (1a, llb, llc) but also in a substantially vertical plane located at the end of said panels when the door is in the open position. Thus, the protection means (MP) form, with the articulated panels constituting the door, an enclosure (160) protected from the weather, making it possible to carry out interventions on the transmission equipment. According to this variant, the protection means are constituted by a rolling shutter or a canvas (17) whose deployment illustrated in FIG. 4 is carried out in a manner known per se using guide crosspieces (i50a, 1sou) which can be positioned during installation of the cabinet on its site. Note that the sleepers could for example be removable or articulated so that they can be retracted without departing from the protective fields of the invention.

 Note that the protection means (MP) could be constituted by equivalent devices without departing from the claimed protective field of the invention and in particular by a device of the type of that illustrated in FIG. 10a and 10b which represents an alternative embodiment said means of protection. According to this alternative embodiment, the protection means (MP) consist of a roof (91) disposed sliding in a horizontal plane between a retracted position illustrated in FIG. 10a where it is located above the upper wall (8a) of the cabinet (1) and a deployed position illustrated in FIG. 10b where it extends in the plane of said upper wall towards the front of the cabinet above the articulated panels constituting the door of said cabinet. According to this alternative embodiment, said sliding roof (91) advantageously comprises an end curtain (92) such as an impermeable fabric intended to extend in a vertical plane so as to form with the roof (91) and the hinged panels (lia, llb, lic) the protected enclosure (160). According to this variant, the curtain (92) is mounted on a reel allowing it to be deployed or stored in the sliding roof (91).

 According to another aspect of the invention, the cabinet for transmission equipment (1) comprises displacement means (MD) of one or more transmission devices (15) and in particular radio bays and / or radio bays. energy intended to allow by moving them access to said devices by all of their side and rear facades.

Thus, interventions due to malfunctions or other failures can be carried out easily, regardless of the location on the devices of the intervention to be performed. Such a device advantageously makes it possible to produce a cabinet (1) whose unoccupied internal volumes are reduced since the movement of the transmission devices allows access to their different facades in a simple manner.

As a result, such a device makes it possible to produce a cabinet of reduced size which can in particular be arranged in places where the available space is limited.

 According to the invention, the displacement means (MD) are constituted by linear displacement means which are arranged so as to allow the displacement of at least one transmission device (15) such as the radio bay (3) and / or the energy bay (2) between an initial operating position (A) illustrated in Figures Sa and a final intervention position (B) illustrated in Figures 5b and 5c in which an operating space (EM) is located behind the facade rear (15a) of a transmission device (15), said maneuvering space (EM) being accessible and sufficiently spacious to allow intervention by a repairer on the rear facade (lSa) of the bays, for example.

 According to the preferred embodiment, the displacement means (MD) illustrated in FIGS. 8a and 8b consist of guide rails (14a, 14b) inside which can move skids (16) intended to equip the transmission (15) and in particular the radio and energy bays (2, 3). Said guide rails (14a, 14b) are arranged transversely in parallel between the rear wall (7) and the front opening (13) on the lower wall (8b) of the cabinet (1).

Each bay (2, 3) is intended to be equipped with four pads (16) including two rear pads arranged laterally at their rear end, while the other two front pads are arranged laterally so as to be offset towards the front (AV ) relative to the position of the center of gravity G of the rack, said center of gravity being thus located directly above the space delimited by the position of the four pads in order to eliminate any risk of tilting of the rack, in particular when moving to the final position as shown in Figures Sa and 5b.

 It goes without saying that the means of movement are illustrated in the case of radio and energy bays, but can be provided for any other transmission device intended to equip the cabinet, without however departing from the protective field of the invention. In addition, thanks to the protection means, it is possible to intervene on the rear panel of the transmission devices even during inclement weather.

 According to the preferred embodiment of the invention, the guide rails can be equipped with limit stop substantially at their ends so as to allow the opening or openings to be brought into their final or initial position smoothly , amortized.

It should be noted that said end of travel stops constitute means for damping the displacements of the bays and can be of any type known per se. Furthermore, said damping means could also be arranged on the walls of the cabinet or directly on the racks, for example, without departing from the protective field of the invention. According to this embodiment, the guide rails consist of U-shaped profiles, inside which the pads (16) move. It goes without saying that the displacement means (MD) could be constituted by guide rails having another shape. Similarly, the displacement means (MD) could, according to a variant not shown, consist of rotating plates intended to allow the bays to pivot around their vertical central axis so as to allow intervention on all the facades of said bays, without for as much to leave the field of protection of the invention.

 According to the invention, the cabinet comprises means for locking the position of the means of movement (MD) of the bays in order to allow the bays to be locked in particular in the initial operating position and in the final intervention position. According to the preferred embodiment of the invention, said locking means can be constituted by brakes or movable wedges intended to block the pads in their respective guide rails. It goes without saying that said locking means could allow locking in positioning of the bays in any intermediate position located between the initial and final positions.

 According to the invention, the cabinet can include thermal insulation means and air conditioning means intended to allow the maintenance of a temperature inside the cabinet, between a maximum temperature and a minimum temperature defining a so-called operating zone temperature of the transmission devices, said means also being intended to avoid sudden variations in said temperature in the authorized zone. According to the preferred embodiment of the invention, the cabinet (1) is equipped with an air conditioner (19) and at least one fan (20a, 20b) whose operation is managed by a control unit not shown , provided with temperature detection means. According to the preferred embodiment of the invention, the fan (20a) and the air conditioner (19) are arranged in the upper part of the opposite side walls (6a, 6b) of the cabinet, as shown in Figures 6, 7a and 7b.

 According to a variant, the cabinet (1) can be provided with an additional fan (20b) arranged in the lower part of its enclosure in order to facilitate the management of the temperature by the control unit, said additional fan being advantageously disposed in the lower part of one of the panels (lla, llb, lic) of the door (10).

 Furthermore, so that only duly authorized persons can enter the enclosure (21) of the cabinet (1), the latter includes closing and locking means (MFV) intended to make it possible to prohibit the access. According to the preferred embodiment of the invention, said closing and locking means (MFV) comprise, on the one hand, a conventional cylinder type lock (30), but also a digital control box by code (22 ), the door can be unlocked using a key or using an access code to be entered in said housing (22). Thus, this type of device allows a repairer to have access to the cabinet and to its enclosure without having the key when entrusted with the code for opening said digital box (22).

 Note that the cabinet according to the invention comprises lightning protection means (100) also called lightning protection device, intended to protect the transmission equipment (MT) arranged in the enclosure of the cabinet. Said cabinet has in particular two belts, a high belt and a low belt intended to connect the structure to the earth so as to constitute in a manner known per se a Faraday cage making it possible to protect the transmission devices.

 According to the preferred embodiment of the invention, the cabinet includes neon lights (23) whose power-up can advantageously be carried out automatically with the opening of the door and vice versa for their extinction. Said neon lights are arranged against the upper panel (8a) longitudinally inside the enclosure, and more precisely in the front part of the upper panel close to the extension of the upper front wall (9a) of the front face (9).

 According to the preferred embodiment of the invention, the cabinet comprises cable channels (24) arranged in a horizontal plane (H1) slightly below the upper panel (8a) substantially against the rear wall (7) of said cabinet . Said cableways consist in a manner known per se of a gutter-shaped grid in which are intended to pass the cables connecting the various transmission devices (15) of the transmission equipment (MT) such as radio and energy bays , the low-voltage distribution board and the France Telecom beam. Furthermore, the cabinet comprises at the upper end of one of the side panels (6a, 6b) at least one orifice (40) intended for the passage of the cable or cables connecting the radio bay (3) to a transmitting or receiving antenna located outside the enclosure of the transmission equipment cabinet.

 Note, moreover, that said cabinet (1) may also include lateral cable trays (25) in the horizontal plane (H1) against its lateral walls (6a, 6b). It can likewise include four vertical cable paths (26) located along the four internal edges of the enclosure forming the corners. Furthermore, a retractable interior shelf can be provided on one of the walls or on the internal face of the hinged panels of the door so as to allow the user, for example, to be able to take notes, write or the like.

 Furthermore, the invention also relates to installation means (MI) of the cabinet (1) intended to allow its installation against a wall or on a platform as shown in Figures 9a and 9b respectively. Said installation means advantageously make it possible to install the cabinet slightly elevated relative to the ground (83). According to a first alternative embodiment illustrated in FIG. 9a, said installation means consist of a floor (80) mounted in a manner known per se on a wall (81) using two inclined lateral crosspieces (82a, 82b) . Insulation means (84) are provided so as to be arranged below the installation means.

According to a second alternative embodiment illustrated in FIG. 9b, the installation means (MI) consist of an intermediate piece (85) on which the floor of the cabinet (1) is fixed, such as for example a metal support, said piece intermediate having dimensions smaller than those of said floor so as to allow the installation of insulation means (84) on the floor and along the vertical side walls (86) of said room.

 Of course, the invention is not limited to the embodiments described and shown by way of examples, but it also includes all the technical equivalents and their combinations.

Claims (10)

 1. Cabinet (1) for transmission equipment (MT) intended to serve as a telecommunications transmission relay by mobile telephone, said cabinet comprising a front opening (13) provided with a door (10) intended to close it and being of the type intended to be fitted with transmission devices (15), characterized in that it includes protection means (MP) intended to ensure the protection of the transmission devices (15) against bad weather when the door (10) closing the front opening (13) is open.  2. Cabinet (1) for transmission equipment (MT) according to claim 1, characterized in that it is constituted by a set of walls held by a metallic structure (12), said cabinet comprising a rear wall (7), two side walls (6a, 6b), a lower wall (8b), an upper wall (8a) and a front face (9) provided with the front opening (13), the protection means (MP) being constituted by a roller shutter (17) disposed on an extension of the upper front wall (9a) of the front face (9) and intended to extend by unrolling.  3. Cabinet (1) for transmission equipment (MT) according to one of claims 1 or 2, characterized in that the installation of the protection means (MP) is carried out automatically when the opening of the door (10).  4. Cabinet (1) for transmission equipment (MT) according to any one of the preceding claims, characterized in that it comprises displacement means (MD) intended to allow the displacement of at least one transmission device.  5. Cabinet (1) for transmission equipment (MT) according to claim 4, characterized in that the displacement means (MD) allow the displacement of the transmission device (15) from an initial operating position to a final intervention position.  6. Cabinet (1) for transmission equipment (MT) according to claim 5, characterized in that the displacement means (MD) are arranged in the cabinet so that in the final intervention position the rear facade (1Sa) of the transmission device (15) is accessible to the repairer.  7. Cabinet (1) for transmission equipment (MT) according to any one of claims 4 to 6, characterized in that it is constituted by a set of walls held by a metallic structure (12), said cabinet comprising a rear wall (7), two side walls (6a, 6b), a lower wall (8b), an upper wall (8a) and a front face (9) provided with the front opening (13), the displacement means ( MD) being constituted by guide rails (14a, 14b) arranged transversely between the rear wall and the front face of the cabinet and by pads (16) intended to equip the transmission device (15), said pads being intended to move along said rails.  8. Cabinet (1) for transmission equipment (MT) according to any one of the preceding claims, characterized in that it comprises air conditioning means intended to allow the temperature to be maintained between a maximum temperature and a minimum temperature which define an operating area of the transmission devices (15).  9. Cabinet (1) for transmission equipment (MT) according to any one of the preceding claims, characterized in that it is provided with locking means (MFV) of the door comprising a lock (30) controlled by a housing. digital code control (22).  10. Cabinet (1) for transmission equipment (MT) according to any one of the preceding claims, characterized in that it is provided with lightning protection means (100)