CONTAINER UNIT FOR RE-TRANSMITTING EQUIPMENTS OF MOBILE TELEPHONE NETWORKS AND ITS INSTALLATION AND AIR CLIMATIZATION METHOD

Abstract: The present invention refers to a container unit for equipments of mobile telephone network re-transmitters comprising a lower module (I), with thin walls (5) in a suitable material, providing a good climatic airing, to accommodate batteries; an upper module (II), in a suitable material, providing the high climatic insulation to accommodate the operation and radio equipments; a cover (1) for the lower module (I); a roofing (2) for the upper module (II); an air circulation system (3), a coiled piping system (6) in closed circuit, foreseen on the outer surfaces of the walls (5) of the lower module (I), providing the required air heating/cooling to climatic airing of the upper module (II); associated forced ventilation devices (7), foreseen in the upper module (II) securing the injection of the climatic air into the upper module (II); and a gas exhaustion system (4). The present invention also refers to the installation and airing method of the referred to container unit.

Description: CONTAINER UNIT FOR RE-TRANSMITTING EQUIPMENTS OF MOBILE TELEPHONE NETWORKS AND ITS INSTALLATION AND AIR CLIMATIZATION METHOD FIELD OF THE INVENTION The present invention concerns new container units for retransmitting equipments of mobile telephone network and its installation and air climatization method. BACKGROUND OF THE INVENTION At present, the mobile telephone networks operators face great difficulties with the high economic costs that represent not only the initial investment in the re-transmitting station equipments but also, later, as regards its maintenance, and all this seems hardly surpassed. Similarly, the equipments durability needs to be improved. The stations in existence are conventional buildings, with a room with rather big dimensions where all necessary operation and retransmission equipments are installed, are often located in areas of difficult access and/or without any near infrastructures, and its functioning requires a significant energy consumption. Consequently, these installations show great disadvantages where transportation, material, building, maintenance and personnel costs are concerned, besides the dimension of the building in itself. On the other hand, on the climatic point of view, they are frequently located in areas with great climatic amplitudes. This type of equipment is SUBSTΓ RULE 2 sensible and being subject to extreme temperatures or under great variation of temperatures makes it indispensable to have an adequate thermic stabilisation of the room where they are located so that they are kept in good operation condition. This thermic stabilisation has been achieved through the use of air conditioning equipment. These equipments have considerable initial costs and its permanent operation represents about 70% of the total energy consumption of the whole container unit. The maintenance costs of the referred to conditioning equipment are quite high too and they surpass something like 50% of the total maintenance costs for the whole container unit. Finally, the fact that batteries are placed in the same compartment with the re-transmitting and the command equipments bring up serious consequences. In fact, the highly acid gases which under certain conditions are liberated by the batteries, corrode and damage the equipments, which necessarily increases the maintenance costs and diminishes the life of the equipments. BRIEF SUMMARY OF THE INVENTION AND ITS ADVANTAGES The present invention has as object a new container unit and the respective method of installation and climatization that eliminates the disadvantages and overcome either technical or economical difficulties existing in the above present referred to conventional buildings. The container unit of the present invention consists of a set of two independent modules, one lower and one upper, tightly closed, defining each one a chamber to lodge separately the batteries from the retransmitting equipments of the mobile telephone network and a climatization system consisting of coiled diffusing pipes, in a closed circuit. According to the present invention the chamber of the lower module is meant to accommodate the batteries and the upper chamber of the module is meant to accommodate the operation and radio equipments. Both chambers are air tight and so they are not in communication to one another, the operation and radio equipments being completely isolated and autonomized from the batteries. The lower chamber walls are extremely thin, in p re-fabricated concrete or another equivalent material and they have, in their outer surfaces, diffusing pipes, in closed circuit, having a coil configuration, which taking advantage of the thermal inertia of the subsoil secure the heating/cooling of the air meant for the adequate climatization of the upper module (II), where the equipments are located. The said lower module is meant to be placed in dept, remaining buried, and the upper module, placed over the cover of the lower module, will have a buried portion and another portion above the ground. With this new concept according to the invention, technically correct, secure and trustworthy environmental conditions are achieved for the operation and radio equipments, resulting of the synergic effect produced by the combined utilisation of:. = the container unit (with an upper module of a highly insulating material, the GRFC, semi-buried, to lodge the sensitive equipments, placed on the lower module (completely buried), which lodges the more prejudicial equipment - the batteries -lower module in which exterior a coiled piping system is assembled for the air circulation that shall carry out the climatization of the upper module chamber) and => its method of installation - semi-buried Thus, through this new container unit and as its method of installation, there can be achieved according to the present invention, namely the following advantages: 1. Secure, efficient and economic conditioning of the container unit. 2. Increased durability of the equipments. 3. Possibility to use the container unit in areas without electricity supplying network, by using solar ceils of low potency and reduced costs. 4. Reduction of the final costs of the container unit, including reduction of electrical consumption and reduction of maintenance costs. 5. Minimisation of the environmental impact. 6. Reduction of the surface area required for the installation of the container unit which has a smaller dimension than conventional installations. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1.1 represents an elevation view of the lower module (I), a concrete monoblock, according to the present invention, with the cover (1 ) in place. Figure 1.2 represents a plant view of the lower module (I) represented in Figure 1.1. Figure 1.3 represents a cross-sectional view, as per line A-A of the module (I) represented in Figure 1.1 without cover. Figure 1.4 represents a cross-sectional view of the plating used, similar to the one represented in Figure 1.3. Figure 1.5 represents a top plan view of the concrete cover (1 ) of the lower module (I) represented in Figure 1.1. Figure 1.6 represents a cross-sectional view, as per line B-B of the concrete cover (1 ), of Figure 1.5. Figure 2.1 represents an elevation view of the upper module (II), a G.F.R.C. mono block, with roofing (2), according to the present invention. Figure 2.2 represents a left/right side elevation view of the upper module (II) with roofing (2), represented in Figure 2.1. Figure 2.3 represents an elevation view of the upper module (II), represented in Figure 2.1 , without roofing (2). Figure 2.4 represents a left/right side elevation view of the upper module (II) represented in Figure 2.3. Figure 2.5 represents a top plan view of the upper module (II) represented in Figure 2.1. Figure 2.6 represents a cross-sectional view of the upper module (II), as per line C-C in Figure 2.5. Figure 3.1 represents a side elevation view of the closure set (15) of the opening of access (14) of the upper module (II). Figure 3.2 represents a front elevation view of closure set (15) of the access opening (14) of the upper module (II) represented in Figure 3.1. Figure 3.3 represents a cross-sectional view of the closure set (15) of the access opening (14) to the interior of the upper module (II) as per line D-D in Figure 3.1. Figure 3.4 represents a cross-sectional view of the closure set (15) of the access opening (14) to the interior of the upper module (II) as per line E-E in Figure 3.2. Figure 3.5 represents a cross-sectional view of the closure set (15) of the access opening (14) to the interior of the upper module (II) as per line F-F in Figure 3.2. Figure 3.6 represents a plan view of the closure set (15) of the access opening (14) to the upper module (II) represented in Figure 3.1. Figure 4.1 represents the roofing (2) of the upper module (II) seen from above. Figure 4.2 represents a front elevation view of the roofing (2) represented in Figure 4.1. Figure 4.3 represents a rear elevation view of the roofing (2) represented in Figure 4.1. Figure 4.4 represents a left side elevation view of the roofing (2) represented in Figure 4.1. Figure 4.5 represents a cross-sectional view of the roofing (2) as per line G-G in Figure 4.1. Figure 4.6 represents a cross-sectional view of the roofing (2) as per line H-H in Figure 4.1. Figure 5.1 represents a front elevation view of the container unit (A), formed by the two modules, lower and upper (I and II), with cover and roofing on (1 and 2), respectively, and all the remaining devices, already assembled and installed according to the present invention. Figure 5.2 represents a left side elevation view of the container unit (A) represented in Figure 5.1. Figure 5.3 represents a right side elevation view of the container unit (A) represented in Figure 5.1. Figure 5.4 represents a rear elevation view of the container unit (A) represented in Figure 5.1. Figure 5.5 represents a horizontal cross-sectional view of the lower module (I) as per line l-l in Figure 5.1 (without the piping). Figure 5.6 represents a horizontal cross-sectional view of the upper module (II) as per line J-J in Figure 5.1. Figure 5.7 represents a vertical cross-sectional view of the container unit (A) as per line K-K in Figure 5.1 , evidencing the ventilation system (7). Figure 5.8 represents a vertical cross-sectional view of the container unit (A) as per line L-L in Figure 5.1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION WITH REFERENCE TO THE DRAWINGS The invention shall be described in a non limited way as an example, as regards the preferred to way to carry out the invention, with reference to the attached drawings. The container unit (A) according to the present invention comprises two modules, a lower one and a upper one (I and II) respectively, a cover (1 ) for the lower module (I), a roofing (2) for the upper module (II), an air circulation system in serpentine for the circulation of air (3) coiled and a gas exhaustion system (4). The lower module (I) is preferably a pre-manufactured concrete block meant to be located under the ground and is completely air tight. The walls (5) of the lower module (I) are very thin, in pre- manufactured concrete or equivalent material, in such a way as to guarantee an appropriate thermal condutibility, Said walls (5) are provided in their outer surfaces with a diffusing piping system of (6) in a closed circuit, coil configured, meant to guarantee an adequate heating/cooling of the air necessary to climatization of the upper module (II). For this, said piping (6) are associated with suitable devices of forced ventilation (7), with an efficient filtration capacity securing the injection of the already climatized air, by passing through the diffusing piping (6), into the upper module (II), thus allowing an efficient climatization thereof. The upper module (II) which is formed by a G.F.R.C mono block., or any other material with which identical results are obtained, is completely air tight and is meant to be placed over the cover (1 ) of the lower module (I) in such a way as to be approximately 1 m above the ground. The roofing (2) of this upper module (II) is conceived in such a way as to offer an high thermal insulation. In said upper module (II) all operation and radio equipments are installed completely isolated and autonomized as regards the lower module (I) where the batteries are located. The lower module (I) has a cover (1 ) over which the upper module (II) is based. This cover (1 ) has an opening (8) and its respective cover (9), that closes it hermetically and which in case of need is used by the maintenance services, being then in correspondence with the opening (10) foreseen for this same effect on the pavement of the upper module (11) and which is hermetically closed. Upon excavation, in the installation premises, the container unit (A) (upper module (II) assembled over the cover of the lower module (I)) is placed at a depth of about 2.5 m, the lower module (I) being completely buried and the upper module (II) remaining with a portion of about 1 m above the ground. Over the upper module (II) is placed a roofing (2) conceived to guarantee a high thermal protection. According to this present invention, the climatization and thermal stabilisation of the container unit (A) is achieved by using the thermal inertia of the underground through an air climatization and circulation system formed by coiled piping (6), foreseen on the outer portion of the walls (5) of the lower module (I), together with ventilation devices (7) located in the wall of the upper module. The admission of feeding air of the climatization system according with the present invention, within the coiled piping (6), foreseen at the exterior of the lower module (I) is made through the admission conduit (1 1 ), which inlet is protected by a small mesh grid (12) located at the ground level and protected by an adequate mean, in this case a housing (13). The service access to the container unit (A) is made through an access opening (14) foreseen in the upper module (II). Due to the low height that the upper module (II) has above the ground, the access opening (14) has been foreseen not only in the wall of the upper module (II) but it continues as well through the roofing (2) itself in such a way as to enable an easy going in and coming out of the maintenance personnel, whenever this is required. The access opening (14) is shut by an integral set, door like (15) corresponding to said entrance, comprising two portions: a wall portion (16), corresponding to the portion of the access opening (14) made on said wall of the upper module (II), and a roofing portion (17), corresponding to the portion of the access opening (14) made on the roofing (2). This door like set (15) is pivotable around a shaft placed horizontally on the roofing (2) of the upper module (II). In the lower module (I) a probe (18) is foreseen to acid detection, connected to a pipe (20) that passes through cover (1 ) of the lower module (I) and through the bottom portion of the upper module (II), and climbs along one of the walls (5) of said upper module (II), communicating to the exterior through a hole (20) made in said wall. In case of liberation of acids by the battery, the probe (18) detects the presence of the acids and automatically sets in motion an extractor (21 ) foreseen for this effect under the cover (1 ) of the chamber of the lower module (I). By setting in motion the extractor (21 ), said gas is exhausted to the exterior through said pipe (7).Thus, a non corrosive atmosphere is secured in the interior of the lower module (I) chamber. Alternately, in the areas where electricity of the public network is not available or is not accessible, the electricity supply is achieved by the use of solar cells of low potency and reduced cost. Other ways of carrying out the present invention might be envisaged, without however leaving apart the spirit and scope of the invention, such as defined in the present description and in the claims herewith attached.

Claims: CLAIMS 1 - A container unit for re-transmitters equipments of mobile telephone network and/or others, characterised by comprising a lower module (I), having thin walls (5) made of a suitable material to provide a good air tightness and good thermal conductibility, designed to accommodate the batteries; an upper module (II), of a suitable material to provide high thermal insulation, designed to accommodate the operation and radio equipments, air tight, being thus completely isolated and autonomized from the lower module (I); a cover (1 ) for the lower module (I), on which the upper module (II) is laid; a roofing (2) for the upper module (II); an air circulation system (3), a coiled piping system (6), in closed circuit foreseen in the outer portion of the walls (5) of the lower module (I), meant to provide the air heating/cooling needed for the climatization of the upper module (II), to which are associated forced ventilation devices (7) with an efficient filtration capacity, foreseen in the upper module (II) and which secure the injection of the climatized air to the inside of said upper module (II); and a gas exhaustion system (4). 2 - Container unit for re-transmitters equipments of mobile telephone network according with claim 1 , characterised by the fact that the lower module (I) is, preferably, a prefabricated reinforced concrete air tight mono block. 3 - Container unit for re-transmitters equipments of mobile telephone network according with any of the preceding claims, characterised by the fact that the lower module (II) is, preferably, a G.R.F.C. air tight mono block. 4 - Container unit for re-transmitters equipments of mobile telephone network according to any of the preceding claims, characterised by comprising an air admission conduit (11 ) for feeding of the climatization system, for the coiled piping (6) foreseen in the outer portion of lower module (I), being also foreseen at the inlet of said conduit (11 ) a small mesh grid (12) at ground level, protected by a housing (13). 5 - Container unit for equipments of re-transmitting mobile telephone network according to any of the previous claims, characterised by being foreseen in the lower module (I) a probe (18) for acid detection, connected to a conduit (19) that crosses over the cover (1 ) of the lower module (I) and the bottom portion of the upper module (|l), and goes up along one of the walls of said upper module communicating to the exterior through a hole (20) made on its wall, an extractor (21 ) foreseen under the cover (1 ) of the lower module (I) chamber connected to the gas exhaustion pipes (7). 6 - Container unit of equipments for re-transmitters of mobile telephone network according with any of the preceding claims, characterised by the fact that cover (1 ) of the lower module (I) has an opening (8) and its corresponding cover (9), that closes hermetically, in registry with the opening (10) foreseen on the upper module (II) pavement and which is hermetically closed. 7 - Container unit of equipments for re-transmitters of mobile telephone network in accordance with any of the previous claims, characterised by being foreseen in the referred to upper module (II) an opening of access (14) on the wall of the upper module (II), and going until reaching the roofing (2) itself, being said access opening (14) shut by a door like set (15), corresponding to said entrance, pivoting around a shaft horizontally placed on the roofing (2) of the upper module (II), and formed by two portions, one portion on the wall (16) of the upper module (II), corresponding to the opening of access (14), and a roofing portion (17), corresponding to the part of access (14) on the roofing (2). 8 - Container unit of equipments for re-transmitters of the mobile telephone network according to any of the previous claims, characterised by comprising, in alternative to electricity from the network, lower potency solar cells. 9 - The method for the installation of the container units of retransmitter equipments for mobile telephone network according with claims 1 to 8, characterised by the fact that said container unit is installed on the ground in such a way that the lower module (I) is buried at an adequate depth to guarantee an adequate cooling/heating of the air circulating in the coiled piping system (6), foreseen at the exterior of said lower module (I) to allow a climatization of the upper module (II) and that the referred to upper module (II), placed over the cover of the lower module (I) has an adequate portion above the ground level. 10 - Method according with claim 9, characterised by the fact that said lower module (I) is at a depth of 2.5 m below the ground level and said upper module (II) has a portion of about 1 meter above the ground. 11 - Method of climatization of container units for re-transmitter equipments of mobile telephone network according to claims 1 to 8, installed according to claims 9 and 10, characterised by the fact that the air admitted through admission conduit (11 ), protected by the small mesh grid (12) foreseen in the housing (13) is circulated through a climatization and air circulation system comprising the coiled piping (6), foreseen on the outer surface of the walls (5) of the lower module (I), placed deep in the ground, so as to allow that by thermic conductibility the air thus circulated be adequately cooled/heated, upon which said cooled/heated air is injected into said module (II) through forced ventilation devices (7) with a efficient filtration capacity, foreseen in the upper module (II).

Inventors: VIEIRA ALBERTO TOMAS, VIEIRA, ALBERTO, TOMAS
Applicants: VIEIRA ALBERTO TOMAS, VIEIRA, ALBERTO, TOMAS
Application year: 1999
Main classification: E04H5
IPC codes: E04H5