EP3167231A1 - System for cooling a room with a cold air stream drawn in under the ceiling - Google Patents

System for cooling a room with a cold air stream drawn in under the ceiling

Info

Publication number
EP3167231A1
EP3167231A1 EP15732598.6A EP15732598A EP3167231A1 EP 3167231 A1 EP3167231 A1 EP 3167231A1 EP 15732598 A EP15732598 A EP 15732598A EP 3167231 A1 EP3167231 A1 EP 3167231A1
Authority
EP
European Patent Office
Prior art keywords
air
cooling system
air cooling
room
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15732598.6A
Other languages
German (de)
French (fr)
Other versions
EP3167231B1 (en
Inventor
Joseph KEREBEL
Gilles DUFRAISSE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Almaco Group Sas
Original Assignee
Almaco Group Sas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Almaco Group Sas filed Critical Almaco Group Sas
Publication of EP3167231A1 publication Critical patent/EP3167231A1/en
Application granted granted Critical
Publication of EP3167231B1 publication Critical patent/EP3167231B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/005—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces in cold rooms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/28—Details or features not otherwise provided for using the Coanda effect

Definitions

  • Cooling system of a room by a flow of cold air drawn under the ceiling Cooling system of a room by a flow of cold air drawn under the ceiling.
  • the invention relates to the field of cooling a room filled with food in buildings such as ships or platform at sea.
  • the invention particularly relates to producing a uniform temperature throughout the room.
  • the premises are both large and filled with many products to be refrigerated, this is the case in the field of transport by boat.
  • a liner embeds a large supply at the beginning of a cruise, so the refrigerated premises are initially filled to the maximum of food whose height can approach the ceiling.
  • the airflow produced by the fans installed on the walls can be braked or deflected by these products, which may create poorly ventilated areas.
  • JP S56 155329 published on December 1, 1981, discloses a dual air conditioning system placed at the corner of two premises and having outlets at the top and inlet mouths at the bottom, the battery exchange heat located at half height.
  • JP S55 87417 published June 17, 1980, discloses a cooling unit having a fan in the upper part propelling cold air through the mouths, the air being extracted in the lower part.
  • the plant has the same width from the floor to the ceiling of the room in which it is placed.
  • the invention particularly relates to a cooling system for refrigerating premises containing objects such as food to be cooled and maintain at the required low temperature, especially when the premises are filled to the maximum height.
  • said system provides a uniform temperature throughout the room where it is installed and it occupies the least possible space while allowing easy maintenance.
  • the invention particularly aims to overcome these disadvantages of the prior art, including compactness, optimization of congestion in the room, better homogeneity of refrigerant air flow in the room. 4. Presentation of the invention
  • the invention particularly relates to a cooling system comprising a cooling coil for cooling an air flow and at least one fan, the rear face of the system being intended to be in contact with the wall of a room.
  • the airflow is sucked into the lower part of the system, passes vertically through the cooling battery located in the middle part and is expelled by the front face at the top of the system to be propelled horizontally under the ceiling of a room.
  • the thicknesses of the middle part comprising the cooling battery and the lower part comprising a suction grille are lower than that of the upper part comprising the fan.
  • the air propelled by the cooling system spreads under the ceiling and reaches the opposite end of the room allowing a better air circulation and a uniform distribution of the temperature throughout the room.
  • the fact that the system is placed against a partition with a lower thickness in the middle and lower part makes it possible to store more food near the system.
  • the air cooling system comprises an inclined plane connecting the front faces of the middle part and the upper part. This arrangement makes it possible to adapt the different thicknesses of the different parts and a better transfer of the weight of the upper part to the middle part.
  • the inclined plane comprises a lighting element whose orientation of the light beam depends on the inclination of the inclined plane.
  • the area to be illuminated is in front and a little below the lighting system thus taking advantage of the inclination of the plane.
  • the cooling battery comprises tubes carrying a coolant and tubes in which defrosting resistors slide. In this way, the resistances of defrosting are placed inside the cooling coil and their maintenance is facilitated.
  • the tubes containing the defrosting resistors are located in the lower part of the cooling coil. In this way, the flow of water produced by the defrosting is facilitated.
  • the air cooling system comprises baffles at the top of the system to guide the flow of refrigerated air. In this way, the refrigerated air flow can be easily oriented in the room.
  • FIG. 1 shows a diagram of an air cooler 1 seen from the front according to an exemplary embodiment
  • FIG. 2 shows a diagram of the same air cooler seen from the side
  • FIG. 3 shows an exemplary diagram of a room seen from above containing an air cooler
  • FIG. 4 shows a perspective view of a room showing the air flows emitted by the air cooler
  • FIG. 5 shows a perspective view of an air cooler 1 according to a particular example embodiment
  • the invention relates in particular to a cooling system comprising a cooling battery for cooling of air and at least one fan, the rear face of the system being intended to be in contact with the wall of a room.
  • the airflow is sucked into the lower part of the system, passes vertically through the cooling battery located in the middle part and is expelled by the front face at the top of the system to be propelled horizontally under the ceiling of a room.
  • the thicknesses of the middle part comprising the cooling battery and the lower part comprising a suction grille are lower than that of the upper part comprising the fan.
  • the median and low parts are less thick than the upper part thus allowing the storage of foodstuffs closer to the cooling system, at least at the level of the median and low parts.
  • the cooling system is also called an air cooler, or an evaporator (case of the use of bi-phasic heat transfer fluid).
  • Fig. 1 shows a diagram of an air cooler 1 seen from the front according to an exemplary embodiment.
  • the air cooler is in the form of a piece of furniture comprising three parts: bass (B), median (M) and high (H).
  • the lower part B and the middle part M have an identical thickness, from 400 to 600 millimeters depending on the cooling capacity made available by the air cooler.
  • the upper part H is thicker, up to 1000 millimeters forming a "blow nose".
  • the width of the refrigeration system varies from 600 millimeters to 1600 millimeters depending on its power.
  • the height is invariant: from 1595 millimeters for the realized range (this dimension includes the condensate tray, the height without this tray is 1420mm).
  • the condensates can be evacuated by a specific pipe which receives the liquids and evacuates the premises.
  • An intermediate portion having an oblique wall provides the junction between the upper and middle parts. This particular configuration allows to free up space at the foot of the air cooler, to put goods to store, while maintaining optimum maintainability.
  • the air is sucked from below through a suction grid 2 and is expelled from above through an expulsion grid 3.
  • the cooled air is propelled by at least one fan 4 located in upper part H, the inner shape of the upper part H directs the air horizontally and establish a flow directed at the outlet of the refrigeration system so that the refrigerated air is propagated as far as possible in the room by sticking to the ceiling.
  • the blowing of cold air flows in the immediate vicinity of the ceiling allows them to go very far in the room.
  • the air velocity through a mouth or blower creates acceleration and the airflow is thus guided against the ceiling.
  • the airflow sticks almost to the ceiling. In the case of large premises, one can have several refrigeration systems.
  • deflectors are placed in front of the expulsion grid in order to direct the air in a direction normal to the plane of said grid. In this way, the airflow is directed under the ceiling and sent as far as possible from the refrigeration system. Thus, the flow spreads better in the room and a uniform temperature is thus produced.
  • the fans 4 are of the centrifugal type, comprising a plurality of blades.
  • the refrigeration system 1 comprises two fans having a vertical axis. According to a variant, it comprises a centrifugal fan comprising a blade wheel, the axis of the wheel being horizontal.
  • the front edge 6 of the connection between the middle part and the upper part is inclined so as to adapt the different thicknesses.
  • This shape also allows a better transfer of the weight of the upper part on the middle part and to install a lighting 7.
  • the slope of the edge 6 orients the beam of the lighting spot 7 in front and towards the bottom of the air cooler 1. This provision is preferred because the generation by cooler 1 of a laminar air flow under the ceiling prevents the installation of certain types of ceiling lights in the vicinity of the cooler.
  • a thermal insulation is implemented at the inclined plane and at the top, ie above the cooling battery 5, so as to limit the formation of condensation.
  • This condensation has the disadvantage of generating frost, which weighs down the device and gradually blocks the pipes.
  • This insulation is advantageously constituted by a double metal wall thus creating an insulating layer with a thickness ranging from 1 to 5 centimeters.
  • the insulation consists of an insulating material which is bonded inside this zone, this material is for example of the Armaflex type marketed by the company ARMACELL, typically of a thickness of 5 millimeters. Any type of insulation is particularly suitable for closed cell foam, less than 1 cm thick, sold in rolls, this type of product not impregnating with water.
  • inspection hatches are arranged to the left and right of the air cooler, allowing at least access to the middle part M and the upper part H by one or other of the sides.
  • the access to the middle part is effected by removing the front edge which the covers, thus making it possible to carry out maintenance on the battery 5 as well as on the components of the air cooler 1, without opening the hatches from the side.
  • Fig. 2 shows a diagram of the same air cooler 1 but seen in profile. This figure shows the suction grid 2 in the lower part, and the expulsion grid 3 at the top, the position of at least one fan 4 and the cooling battery 5, the inclined edge 6 between the middle part and the upper part and a lighting means 7 placed on this inclined song.
  • Fig. 2 also shows an electrical box 9 fixed inside the air cooler, at the bottom part B. This housing contains a control unit which, according to signals produced by a probe, controls the regulation of the temperature, the operation of the fans, and the defrost cycle. This box also contains the communication interface with the remote display and control unit.
  • the water produced by the defrost is collected at the bottom by a recovery tray 10 at the bottom of the refrigeration system.
  • This tray is also equipped with electrical resistances, as well as the drain pipe so as to evacuate the water resulting from defrosting outside the refrigeration system and the room.
  • the electrical box 9 contains at least the power supply of the components, but can also provide the electrical energy of the control and control assembly of the air cooler.
  • the defrosting is carried out periodically for a short time, for example 10 minutes of defrosting 3 to 6 times per day.
  • the period and duration of the defrost can be set by the user by a remote control box.
  • the initiation of a defrosting cycle is carried out by analyzing the pressure difference between the flow entering and leaving the battery 5.
  • the decrease in the section of passage of air passing through the battery due to Frost is proportional to the increase in the air pressure difference measured at the inlet and the outlet of the battery 5. If this pressure difference exceeds a certain threshold, then the control box 9 triggers the "defrost" mode, in particular the ignition of the defrosting resistances for a predetermined time.
  • the de-icing resistors are at the bottom of the cooling coil. In this way, the hot air flow rising from the resistances propagates to the entire battery 5 and can thus effectively defrost it.
  • Fig. 3 shows a diagram of a room 11 seen from above containing the air cooler 1, an inlet 12 and stored food 15.
  • the air cooler is advantageously placed as far as possible from the entrance 12 of the room.
  • a control box 13 is preferably attached outside the entrance and close to it. In this way, an operator can see the indications displayed on the housing, typically an indication of the temperature, an indication of the operation of the fans, de-icing means, etc.
  • the control unit 13 also includes buttons allowing an operator to introduce orders and instructions (for example, the temperature to be maintained in the room, the defrosting parameters, an ignition button for the lighting of the room, etc.).
  • a temperature sensor 14 is placed in the immediate vicinity, so as to provide the highest temperature present in the room 11.
  • This temperature sensor is connected by a cable to the control box 13 and the electrical box 9 inside the air cooler.
  • the communication between the control box 13 and the electrical box 9 is carried out by a data bus-type link, but the communication can also alternatively be carried out by a radio signal, using Wifi for example .
  • the electrical box 9 is also connected to temperature probes internal to the refrigeration system, and in particular to the air inlet and outlet of the battery.
  • the fans are triggered in order to stir the air contained in the room and allow a better homogeneity. If, overall, the temperature measured by the probes exceeds a certain value, the set temperature, then the coolant circulates in the battery 5 to lower the air temperature and thus reduce the gap.
  • Fig. 4 shows a perspective view of a room 11 containing the air cooler 1, an inlet 12 and stored food 15. It can be seen that the system 1 propels refrigerated air over the stored products and in directions guided that can be fan. In this way, the refrigerated air spreads quickly under the ceiling, thus avoiding the goods stored in the room and covers them, allowing a uniform distribution of the temperature in the room 11.
  • the upper part of the air cooler 1 may optionally comprise steering deflectors placed in front of the expulsion grid 3. These deflectors are adjustable from right to left and possibly upwards and downwards, so as to produce a large flow of air output that spreads in a directed and optimal way throughout the room.
  • Fig. 5 shows a perspective view of an air cooler 1.
  • the lower part ends with a nozzle allowing the flow of water produced by defrosting. After installation of the refrigeration system, this nozzle is connected to a pipe containing an electrical resistance avoiding the freezing of the water inside.
  • Fig. 5 has the shape of inclined song 6, this song allows in particular to orient a lamp (not shown) whose beam illuminates the bottom and the front of the air cooler 1.
  • the invention is not limited to the embodiments that have just been described. In particular, the invention can be implemented regardless of how to generate frigories within the refrigeration system.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention concerns an air cooling system comprising a cooling battery traversed by a vertical air stream and at least one fan disposed above the cooling battery. The fan discharges the cooled laminar air stream in the top part of the system, and said air stream is drawn in in the bottom part. The thicknesses of the middle parts comprising the cooling battery and of the bottom part comprising a suction grille are less than that of the top part containing the at least one fan. In this way, the middle and bottom parts are thinner than the top part, thus allowing goods to be stored closer to the cooling system.

Description

Système de refroidissement d'un local par un flux d'air froid puisé sous le plafond.  Cooling system of a room by a flow of cold air drawn under the ceiling.
1. Domaine de l'invention 1. Field of the invention
L'invention concerne le domaine du refroidissement d'un local rempli de denrées dans des bâtiments tels que des navires ou plateforme en mer. L'invention concerne notamment le fait de produire une température uniforme dans tout le local. 2. Art antérieur  The invention relates to the field of cooling a room filled with food in buildings such as ships or platform at sea. The invention particularly relates to producing a uniform temperature throughout the room. 2. Prior Art
Dans le domaine du refroidissement de vastes locaux destinés à recevoir des denrées alimentaires périssables à bord de bateaux de transport, navires de croisière ou plateforme en mer abritant une population, la conservation de telles denrées s'effectue généralement à des températures négatives ou tout juste positive. De façon à ne pas rompre la chaîne du froid, la même température doit être uniformément maintenue dans l'ensemble du local. Cette température uniforme est réalisée par des flux d'air expulsés dans l'ensemble du local par des refroidisseurs d'air. Les refroidisseurs d'air installés sont dotés de ventilateurs qui produisent des flux d'air réfrigéré et sont disséminés dans le local pour mieux répartir la production de froid.  In the field of cooling large premises intended to receive perishable food on board transport vessels, cruise ships or offshore platform housing a population, the preservation of such commodities is generally carried out at negative or just positive temperatures. . In order not to break the cold chain, the same temperature must be uniformly maintained throughout the room. This uniform temperature is achieved by air flows expelled throughout the room by air coolers. Installed air coolers have fans that produce chilled air flows and are scattered throughout the room to better distribute the cold production.
Dans certains cas, les locaux sont à la fois vastes et remplis de nombreux produits à réfrigérer, c'est le cas dans le domaine des transports par bateaux. Par exemple, un paquebot embarque un ravitaillement important au début d'une croisière, de ce fait les locaux frigorifiques sont au départ remplis au maximum de denrées alimentaires dont la hauteur peut approcher le plafond. De ce fait, le flux d'air produit par les ventilateurs installés sur les parois peut être freiné ou dévié par ces produits, ce qui risque de créer des zones mal ventilées.  In some cases, the premises are both large and filled with many products to be refrigerated, this is the case in the field of transport by boat. For example, a liner embeds a large supply at the beginning of a cruise, so the refrigerated premises are initially filled to the maximum of food whose height can approach the ceiling. As a result, the airflow produced by the fans installed on the walls can be braked or deflected by these products, which may create poorly ventilated areas.
Un autre inconvénient réside dans la compacité des refroidisseurs d'air actuels. Dans de tels refroidisseurs, l'air est aspiré de l'arrière et traverse horizontalement une batterie de refroidissement avant d'expulser vers l'avant un flux réfrigéré. Le ventilateur générant le flux d'air est placé à la même hauteur que la batterie de réfrigération, cette configuration entraîne une épaisseur importante du refroidisseur d'air. De ce fait, les systèmes actuels occupent un volume important, ce qui diminue d'autant le volume utile dans le local à réfrigérer. Another disadvantage is the compactness of the current air coolers. In such coolers, the air is sucked from the back and horizontally passes through a cooling coil before expelling a refrigerated flow. The fan generating the air flow is placed at the same height as the refrigeration battery, this configuration causes a significant thickness of the air cooler. As a result, the current systems occupy a large volume, which reduces the useful volume in the room to be refrigerated.
La maintenance de tels appareils exige de pouvoir les ouvrir par une trappe suffisamment large placée sur le devant mais également sur un coté pour changer des composants internes. Ce type de refroidisseurs d'air ne peuvent être installés dans des angles du local où la trappe sur le coté ne serait plus accessible. De ce fait, les refroidisseurs d'air sont généralement placés au milieu d'un mur, cette disposition présentant un encombrement plus important.  The maintenance of such devices requires being able to open them with a sufficiently wide hatch placed on the front but also on one side to change internal components. This type of air coolers can not be installed in corners of the room where the hatch on the side would not be accessible. As a result, the air coolers are generally placed in the middle of a wall, this arrangement having a larger footprint.
Le document JP S56 155329, publié le 1 Décembre 1981, divulgue un système de climatisation double placé à l'angle de deux locaux et comportant des bouches de sortie en partie haute et des bouches d'admission en partie basse, la batterie d'échange calorifique étant située à la mi-hauteur.  The document JP S56 155329, published on December 1, 1981, discloses a dual air conditioning system placed at the corner of two premises and having outlets at the top and inlet mouths at the bottom, the battery exchange heat located at half height.
Le document JP S55 87417, publié le 17 Juin 1980, divulgue une centrale de refroidissement ayant un ventilateur en partie haute propulsant de l'air froid à travers des bouches, l'air étant extrait en partie basse. La centrale possède la même largeur du sol au plafond du local dans laquelle elle est placée.  JP S55 87417, published June 17, 1980, discloses a cooling unit having a fan in the upper part propelling cold air through the mouths, the air being extracted in the lower part. The plant has the same width from the floor to the ceiling of the room in which it is placed.
L'invention a notamment pour objet un système de refroidissement destiné à réfrigérer des locaux contenant des objets tels que des denrées à refroidir et à les maintenir à la température basse requise, et notamment lorsque les locaux sont remplis au maximum de hauteur. De plus, ledit système procure une température homogène dans l'ensemble du local où il est installé et il occupe le moins possible de place tout en permettant une maintenance aisée.  The invention particularly relates to a cooling system for refrigerating premises containing objects such as food to be cooled and maintain at the required low temperature, especially when the premises are filled to the maximum height. In addition, said system provides a uniform temperature throughout the room where it is installed and it occupies the least possible space while allowing easy maintenance.
3. Objectifs de l'invention 3. Objectives of the invention
L'invention a notamment pour objectif de pallier ces inconvénients de l'art antérieur, notamment compacité, optimisation de l'encombrement dans le local, meilleure homogénéité des flux d'air réfrigérant dans le local. 4. Exposé de l'invention The invention particularly aims to overcome these disadvantages of the prior art, including compactness, optimization of congestion in the room, better homogeneity of refrigerant air flow in the room. 4. Presentation of the invention
L'invention concerne notamment un système de refroidissement comportant une batterie de refroidissement pour refroidir un flux d'air et au moins un ventilateur, la face arrière du système étant destinée à être au contact du mur d'un local. Le flux d'air est aspiré en partie basse du système, traverse verticalement la batterie de refroidissement située en partie médiane et est expulsé par la face avant en partie haute du système pour être propulsé horizontalement sous le plafond d'un local. Les épaisseurs de la partie médiane comportant la batterie de refroidissement et de la partie basse comportant une grille d'aspiration sont inférieures à celle de la partie haute comportant le ventilateur.  The invention particularly relates to a cooling system comprising a cooling coil for cooling an air flow and at least one fan, the rear face of the system being intended to be in contact with the wall of a room. The airflow is sucked into the lower part of the system, passes vertically through the cooling battery located in the middle part and is expelled by the front face at the top of the system to be propelled horizontally under the ceiling of a room. The thicknesses of the middle part comprising the cooling battery and the lower part comprising a suction grille are lower than that of the upper part comprising the fan.
De cette manière, l'air propulsé par le système de refroidissement se répand sous le plafond et atteint l'extrémité opposée du local permettant une meilleure circulation d'air et une répartition uniforme de la température dans tout le local. Le fait que le système est placé contre une cloison avec une épaisseur plus faible en partie médiane et basse permet de stocker plus de denrées près du système.  In this way, the air propelled by the cooling system spreads under the ceiling and reaches the opposite end of the room allowing a better air circulation and a uniform distribution of the temperature throughout the room. The fact that the system is placed against a partition with a lower thickness in the middle and lower part makes it possible to store more food near the system.
Selon un premier exemple de réalisation, le système de refroidissement d'air comporte un plan incliné reliant les faces avant de la partie médiane et de la partie haute. Cette disposition permet d'adapter les épaisseurs différentes des différentes parties et un meilleur report du poids de la partie haute sur la partie médiane.  According to a first exemplary embodiment, the air cooling system comprises an inclined plane connecting the front faces of the middle part and the upper part. This arrangement makes it possible to adapt the different thicknesses of the different parts and a better transfer of the weight of the upper part to the middle part.
Selon un autre exemple de réalisation, le plan incliné comporte un élément d'éclairage dont l'orientation du faisceau lumineux dépend de l'inclinaison du plan incliné. La zone à éclairer se trouve devant et un peu en dessous du système d'éclairage en profitant ainsi de l'inclinaison du plan.  According to another exemplary embodiment, the inclined plane comprises a lighting element whose orientation of the light beam depends on the inclination of the inclined plane. The area to be illuminated is in front and a little below the lighting system thus taking advantage of the inclination of the plane.
Selon un autre exemple de réalisation, la batterie de refroidissement comporte des tubes transportant un liquide caloporteur et des tubes dans lesquels se glissent des résistances de dégivrage. De cette manière, les résistances de dégivrage sont placées à l'intérieur de la batterie de refroidissement et leur maintenance est facilitée. According to another exemplary embodiment, the cooling battery comprises tubes carrying a coolant and tubes in which defrosting resistors slide. In this way, the resistances of defrosting are placed inside the cooling coil and their maintenance is facilitated.
Selon un autre exemple de réalisation, les tubes contenant les résistances de dégivrage se trouvent en partie basse de la batterie de refroidissement. De cette manière, l'écoulement de l'eau produite par le dégivrage est facilité.  According to another embodiment, the tubes containing the defrosting resistors are located in the lower part of the cooling coil. In this way, the flow of water produced by the defrosting is facilitated.
Selon un autre exemple de réalisation, le système de refroidissement d'air comporte des déflecteurs de direction en partie haute du système pour orienter le flux d'air réfrigéré. De cette manière, le flux d'air réfrigéré peut être facilement orienté dans le local.  According to another exemplary embodiment, the air cooling system comprises baffles at the top of the system to guide the flow of refrigerated air. In this way, the refrigerated air flow can be easily oriented in the room.
5. Liste des figures 5. List of figures
D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante d'un mode de réalisation particulier, donné à titre de simple exemple illustratif et non-limitatif, et des dessins annexés, parmi lesquels :  Other features and advantages of the invention will appear more clearly on reading the following description of a particular embodiment, given as a simple illustrative and non-limiting example, and the appended drawings, among which:
- la figure 1 montre un schéma d'un refroidisseur d'air 1 vu de face selon un exemple de réalisation,  FIG. 1 shows a diagram of an air cooler 1 seen from the front according to an exemplary embodiment,
- la figure 2 montre un schéma du même refroidisseur d'air vu de coté, FIG. 2 shows a diagram of the same air cooler seen from the side,
- la figure 3 présente un exemple de schéma d'un local vu du dessus contenant un refroidisseur d'air, FIG. 3 shows an exemplary diagram of a room seen from above containing an air cooler,
- la figure 4 présente une vue en perspective d'un local lmontrant les flux d'air émis par le refroidisseur d'air,  FIG. 4 shows a perspective view of a room showing the air flows emitted by the air cooler,
- la figure 5 présente une vue en perspective d'un refroidisseur d'air 1 selon un exemple particulier de réalisation,  FIG. 5 shows a perspective view of an air cooler 1 according to a particular example embodiment,
6. Description d'un mode de réalisation de l'invention 6. Description of an embodiment of the invention
6.1 Principe général 6.1 General principle
L'invention concerne notamment un système refroidissement comportant une batterie de refroidissement pour refroidir d'air et au moins un ventilateur, la face arrière du système étant destinée à être au contact du mur d'un local. Le flux d'air est aspiré en partie basse du système, traverse verticalement la batterie de refroidissement située en partie médiane et est expulsé par la face avant en partie haute du système pour être propulsé horizontalement sous le plafond d'un local. Les épaisseurs de la partie médiane comportant la batterie de refroidissement et de la partie basse comportant une grille d'aspiration sont inférieures à celle de la partie haute comportant le ventilateur. The invention relates in particular to a cooling system comprising a cooling battery for cooling of air and at least one fan, the rear face of the system being intended to be in contact with the wall of a room. The airflow is sucked into the lower part of the system, passes vertically through the cooling battery located in the middle part and is expelled by the front face at the top of the system to be propelled horizontally under the ceiling of a room. The thicknesses of the middle part comprising the cooling battery and the lower part comprising a suction grille are lower than that of the upper part comprising the fan.
De cette manière, les parties médianes et basses sont moins épaisses que la partie haute permettant ainsi le stockage de denrées plus près du système de refroidissement, au moins au niveau des parties médianes et basses.  In this way, the median and low parts are less thick than the upper part thus allowing the storage of foodstuffs closer to the cooling system, at least at the level of the median and low parts.
6.2 Description d'un mode de réalisation 6.2 Description of an embodiment
Dans le cadre de la présente invention, le système de refroidissement est également appelé un refroidisseur d'air, ou encore un évaporateur (cas de l'utilisation de fluide caloporteur bi-phasique).  In the context of the present invention, the cooling system is also called an air cooler, or an evaporator (case of the use of bi-phasic heat transfer fluid).
La Fig. 1 présente un schéma d'un refroidisseur d'air 1 vu de face selon un exemple de réalisation. Le refroidisseur d'air se présente sous la forme d'un meuble comportant trois parties : basse (B), médiane (M) et haute (H). La partie basse B et la partie médiane M présentent une épaisseur identique, de 400 à 600 millimètres selon la puissance frigorifique mis à disposition par le refroidisseur d'air. La partie haute H est plus épaisse, jusqu'à 1000 millimètres formant un « nez de soufflage ». La largeur du système de réfrigération varie de 600 millimètres à 1600 millimètres selon sa puissance. La hauteur est invariante : de 1595 millimètres pour la gamme réalisée (cette dimension inclut le bac à condensais, la hauteur sans ce bac est de 1420mm). En variante, les condensais peuvent être évacués par une canalisation spécifique qui reçoit les liquides et les évacue du local. Une partie intermédiaire ayant une paroi oblique assure la jonction entre les parties hautes et médianes. Cette configuration particulière permet de libérer de la place au pied du refroidisseur d'air, pour y mettre des denrées à stocker, tout en conservant une maintenabilité optimale. Fig. 1 shows a diagram of an air cooler 1 seen from the front according to an exemplary embodiment. The air cooler is in the form of a piece of furniture comprising three parts: bass (B), median (M) and high (H). The lower part B and the middle part M have an identical thickness, from 400 to 600 millimeters depending on the cooling capacity made available by the air cooler. The upper part H is thicker, up to 1000 millimeters forming a "blow nose". The width of the refrigeration system varies from 600 millimeters to 1600 millimeters depending on its power. The height is invariant: from 1595 millimeters for the realized range (this dimension includes the condensate tray, the height without this tray is 1420mm). Alternatively, the condensates can be evacuated by a specific pipe which receives the liquids and evacuates the premises. An intermediate portion having an oblique wall provides the junction between the upper and middle parts. This particular configuration allows to free up space at the foot of the air cooler, to put goods to store, while maintaining optimum maintainability.
Selon l'invention, l'air est aspiré par le bas à travers une grille d'aspiration 2 et est expulsé par le haut à travers une grille d'expulsion 3. L'air refroidi est propulsé par au moins un ventilateur 4 situé en partie haute H, la forme intérieure de la partie haute H permet de diriger l'air de façon horizontale et d'établir un débit dirigé en sortie du système de réfrigération de façon que l'air réfrigéré se propage le plus loin possible dans le local en se collant au plafond. En bénéficiant de l'effet Coanda, le soufflage des flux d'air froid à proximité immédiate du plafond leurs permet d'aller très loin dans le local. La vitesse de l'air via une bouche ou une grille de soufflage crée une accélération et le flux d'air se trouve ainsi guidé contre le plafond. Le flux d'air se colle presque au plafond. Dans le cas de grands locaux, on peut disposer plusieurs systèmes de réfrigération.  According to the invention, the air is sucked from below through a suction grid 2 and is expelled from above through an expulsion grid 3. The cooled air is propelled by at least one fan 4 located in upper part H, the inner shape of the upper part H directs the air horizontally and establish a flow directed at the outlet of the refrigeration system so that the refrigerated air is propagated as far as possible in the room by sticking to the ceiling. Benefiting from the Coanda effect, the blowing of cold air flows in the immediate vicinity of the ceiling allows them to go very far in the room. The air velocity through a mouth or blower creates acceleration and the airflow is thus guided against the ceiling. The airflow sticks almost to the ceiling. In the case of large premises, one can have several refrigeration systems.
Selon un perfectionnement, des déflecteurs sont placés devant la grille d'expulsion afin de diriger l'air dans une direction normale au plan de ladite grille. De cette façon, le flux d'air est dirigé sous le plafond et envoyé le plus loin possible du système de réfrigération. Ainsi, le flux se répand mieux dans le local et une température uniforme y est ainsi produite.  According to an improvement, deflectors are placed in front of the expulsion grid in order to direct the air in a direction normal to the plane of said grid. In this way, the airflow is directed under the ceiling and sent as far as possible from the refrigeration system. Thus, the flow spreads better in the room and a uniform temperature is thus produced.
L'air aspiré par le bas traverse une batterie de refroidissement 5, typiquement un échangeur à ailettes, qui est traversée par un fluide caloporteur. Les ventilateurs 4 sont du type centrifuge, comportant une pluralité de pales. Selon l'exemple illustré, le système de réfrigération 1 comporte deux ventilateurs ayant un axe vertical. Selon une variante, il comporte un ventilateur centrifuge comportant une roue à aube, l'axe de la roue étant horizontal. En traversant la batterie 5 aux parois froides, l'humidité de l'air se condense puis givre, se transformant en glace qui se fixe sur les parois. Au bout d'un certain temps, la section de passage de l'air se réduit. Des éléments chauffants sont placés dans la batterie permettant son dégivrage. Un mode de réalisation particulier sera décrit par la suite. Le refroidisseur d'air 1 est accroché au mur par la face arrière et au plafond du local par sa face supérieure. The air sucked from the bottom through a cooling coil 5, typically a finned exchanger, which is traversed by a heat transfer fluid. The fans 4 are of the centrifugal type, comprising a plurality of blades. According to the illustrated example, the refrigeration system 1 comprises two fans having a vertical axis. According to a variant, it comprises a centrifugal fan comprising a blade wheel, the axis of the wheel being horizontal. By crossing the battery 5 with cold walls, the humidity of the air condenses then frost, turning into ice which is fixed on the walls. After a while, the air passage section is reduced. Heaters are placed in the battery for defrosting. A particular embodiment will be described thereafter. The air cooler 1 is hooked to the wall by the rear face and the ceiling of the room by its upper face.
Selon un perfectionnement, le chant avant 6 de la liaison entre la partie médiane et la partie haute est incliné de façon à adapter les épaisseurs différentes. Cette forme permet aussi un meilleur report du poids de la partie haute sur la partie médiane et d'installer un éclairage 7. La pente du chant 6 oriente le faisceau du spot d'éclairage 7 en avant et vers le bas du refroidisseur d'air 1. Cette disposition est préférentielle car la génération par le refroidisseur 1 d'un flux d'air laminaire sous le plafond empêche l'installation de certains types de plafonniers au voisinage du refroidisseur.  According to an improvement, the front edge 6 of the connection between the middle part and the upper part is inclined so as to adapt the different thicknesses. This shape also allows a better transfer of the weight of the upper part on the middle part and to install a lighting 7. The slope of the edge 6 orients the beam of the lighting spot 7 in front and towards the bottom of the air cooler 1. This provision is preferred because the generation by cooler 1 of a laminar air flow under the ceiling prevents the installation of certain types of ceiling lights in the vicinity of the cooler.
Selon un autre perfectionnement, une isolation thermique est mise en place au niveau du plan incliné et en partie haute, c'est à dire au-dessus de la batterie de refroidissement 5, de manière à limiter la formation de condensation. Cette condensation présente l'inconvénient de générer du givre, ce qui alourdit l'appareil et bouche peu à peu les canalisations. Cette isolation est avantageusement constituée d'une double paroi métallique créant ainsi une couche isolante d'une épaisseur variant de 1 à 5 centimètres. Selon une variante, l'isolation est constituée d'un matériau isolant qui est collé à l'intérieur de cette zone, ce matériau est par exemple du type Armaflex commercialisé par la société ARMACELL, d'une épaisseur typiquement de 5 millimètres. Tout type d'isolant convient en particulier de la mousse cellule fermée, d'une épaisseur inférieur à 1 centimètre, vendue en rouleaux, ce type de produit ne s'imprégnant pas d'eau.  According to another improvement, a thermal insulation is implemented at the inclined plane and at the top, ie above the cooling battery 5, so as to limit the formation of condensation. This condensation has the disadvantage of generating frost, which weighs down the device and gradually blocks the pipes. This insulation is advantageously constituted by a double metal wall thus creating an insulating layer with a thickness ranging from 1 to 5 centimeters. According to one variant, the insulation consists of an insulating material which is bonded inside this zone, this material is for example of the Armaflex type marketed by the company ARMACELL, typically of a thickness of 5 millimeters. Any type of insulation is particularly suitable for closed cell foam, less than 1 cm thick, sold in rolls, this type of product not impregnating with water.
Selon un autre perfectionnement, des trappes de visite sont disposées à gauche et à droite du refroidisseur d'air, permettant au moins l'accès à la partie médiane M et la partie haute H par l'un ou l'autre des cotés. De cette façon, il est possible de disposer le refroidisseur d'air proche d'un coin du local en plaquant la face arrière contre un des murs, tout en gardant accessible l'intérieur du refroidisseur d'air 1 par les trappes de visite laissées libres. Selon une variante de réalisation, l'accès à la partie médiane s'effectue en ôtant le chant avant qui la recouvre, permettant ainsi d'effectuer une maintenance sur la batterie 5 ainsi que sur les composants du refroidisseur d'air 1, sans ouvrir les trappes de côté. According to another improvement, inspection hatches are arranged to the left and right of the air cooler, allowing at least access to the middle part M and the upper part H by one or other of the sides. In this way, it is possible to arrange the air cooler near a corner of the room by plating the back side against one of the walls, while keeping accessible inside the air cooler 1 through the inspection hatches left free. According to an alternative embodiment, the access to the middle part is effected by removing the front edge which the covers, thus making it possible to carry out maintenance on the battery 5 as well as on the components of the air cooler 1, without opening the hatches from the side.
La Fig. 2 présente un schéma du même refroidisseur d'air 1 mais vu de profil. On voit sur cette figure la grille d'aspiration 2 en partie basse, et la grille d'expulsion 3 en haut, la position d'au moins un ventilateur 4 et la batterie de refroidissement 5, le chant incliné 6 entre la partie médiane et la partie haute et un moyen d'éclairage 7 placé sur ce chant incliné. La Fig. 2 met également en évidence un boîtier électrique 9 fixé à l'intérieur du refroidisseur d'air, au niveau de la partie basse B. Ce boîtier contient une unité de contrôle qui, en fonction de signaux produits par une sonde, commande la régulation de la température, le fonctionnement des ventilateurs, et le cycle de dégivrage. Ce boîtier contient également l'interface de communication avec l'unité d'affichage et de commande déportée.  Fig. 2 shows a diagram of the same air cooler 1 but seen in profile. This figure shows the suction grid 2 in the lower part, and the expulsion grid 3 at the top, the position of at least one fan 4 and the cooling battery 5, the inclined edge 6 between the middle part and the upper part and a lighting means 7 placed on this inclined song. Fig. 2 also shows an electrical box 9 fixed inside the air cooler, at the bottom part B. This housing contains a control unit which, according to signals produced by a probe, controls the regulation of the temperature, the operation of the fans, and the defrost cycle. This box also contains the communication interface with the remote display and control unit.
L'eau produite par le dégivrage est collectée en partie basse par un plateau de récupération 10 en bas du système de réfrigération. Ce plateau est également doté de résistances électriques, de même que le tuyau d'évacuation de façon à évacuer l'eau issue par le dégivrage à l'extérieur du système de réfrigération et du local. Le boîtier électrique 9 contient à minima l'alimentation électrique des composants, mais peut également fournir l'énergie électrique de l'ensemble de contrôle et de commande du refroidisseur d'air. Selon un mode préféré de réalisation, le dégivrage s'effectue de façon périodique pendant un court moment, par exemple 10 minutes de dégivrage 3 à 6 fois par jour. Dans ce mode simple de réalisation, la période et la durée du dégivrage peuvent être réglées par l'utilisateur par un boîtier de commande déporté. Selon une variante de réalisation, le déclenchement d'un cycle de dégivrage s'effectue en analysant la différence de pression entre le flux entrant et sortant de la batterie 5. La diminution de la section de passage de l'air traversant la batterie à cause du givre est proportionnelle à l'augmentation de la différence de pression de l'air mesurée à l'entrée et à la sortie de la batterie 5. Si cette différence de pression dépasse un certain seuil, alors le boîtier de commande 9 déclenche le mode « dégivrage », en particulier l'allumage des résistances de dégivrage pendant un temps déterminé. The water produced by the defrost is collected at the bottom by a recovery tray 10 at the bottom of the refrigeration system. This tray is also equipped with electrical resistances, as well as the drain pipe so as to evacuate the water resulting from defrosting outside the refrigeration system and the room. The electrical box 9 contains at least the power supply of the components, but can also provide the electrical energy of the control and control assembly of the air cooler. According to a preferred embodiment, the defrosting is carried out periodically for a short time, for example 10 minutes of defrosting 3 to 6 times per day. In this simple embodiment, the period and duration of the defrost can be set by the user by a remote control box. According to an alternative embodiment, the initiation of a defrosting cycle is carried out by analyzing the pressure difference between the flow entering and leaving the battery 5. The decrease in the section of passage of air passing through the battery due to Frost is proportional to the increase in the air pressure difference measured at the inlet and the outlet of the battery 5. If this pressure difference exceeds a certain threshold, then the control box 9 triggers the "defrost" mode, in particular the ignition of the defrosting resistances for a predetermined time.
Selon un perfectionnement, les résistances de dégivrage se trouvent en partie basse de la batterie de refroidissement. De cette manière, le flux d'air chaud montant des résistances se propage à l'ensemble de la batterie 5 et peut ainsi la dégivrer efficacement.  According to an improvement, the de-icing resistors are at the bottom of the cooling coil. In this way, the hot air flow rising from the resistances propagates to the entire battery 5 and can thus effectively defrost it.
La Fig. 3 présente un schéma d'un local 11 vu du dessus contenant le refroidisseur d'air 1, une entrée 12 et des denrées stockées 15. Le refroidisseur d'air est avantageusement placé le plus loin possible de l'entrée 12 du local. Un boîtier de commande 13 est de préférence fixé à l'extérieur de l'entrée et à proximité de celle-ci. De cette manière, un opérateur peut voir les indications affichées sur le boîtier, typiquement une indication de la température, une indication du fonctionnement des ventilateurs, des moyens de dégivrage, etc .. Le boîtier de commande 13 comporte également des boutons permettant à un opérateur d'introduire des ordres et des consignes (par exemple, la température à maintenir dans le local, les paramètres du dégivrage, un bouton d'allumage pour l'éclairage du local, ...).  Fig. 3 shows a diagram of a room 11 seen from above containing the air cooler 1, an inlet 12 and stored food 15. The air cooler is advantageously placed as far as possible from the entrance 12 of the room. A control box 13 is preferably attached outside the entrance and close to it. In this way, an operator can see the indications displayed on the housing, typically an indication of the temperature, an indication of the operation of the fans, de-icing means, etc. The control unit 13 also includes buttons allowing an operator to introduce orders and instructions (for example, the temperature to be maintained in the room, the defrosting parameters, an ignition button for the lighting of the room, etc.).
Considérant que la porte à l'entrée 12 du local tend à réchauffer le local avec les apports d'air chaud lors des ouverture de cette porte, une sonde de température 14 est placée à proximité immédiate, de façon à fournir la température la plus haute présente dans le local 11. Cette sonde de température est reliée par un câble au boîtier de commande 13 et au boîtier électrique 9 à l'intérieur du refroidisseur d'air. Selon une variante, la communication entre le boîtier de commande 13 et le boîtier électrique 9 s'effectue par liaison fïlaire de type bus de données, mais la communication peut aussi en variante s'effectuer par un signal radio, en utilisant du Wifï par exemple. Le boîtier électrique 9 est également relié à des sondes de températures internes au système de réfrigération, et notamment à l'entrée et à la sortie d'air de la batterie. Si l'écart de température mesuré par la sonde extérieure 14 et la sonde intérieure dépasse un certain seuil, alors les ventilateurs sont déclenchés afin de brasser l'air contenu dans le local et permettre une meilleure homogénéité. Si globalement, la température mesurée par les sondes dépassent d'une certaine valeur, la température de consigne, alors le fluide de refroidissement circule dans la batterie 5 pour abaisser la température de l'air et ainsi réduire l'écart. Considering that the door at the entrance 12 of the room tends to warm the room with the inflow of hot air when opening this door, a temperature sensor 14 is placed in the immediate vicinity, so as to provide the highest temperature present in the room 11. This temperature sensor is connected by a cable to the control box 13 and the electrical box 9 inside the air cooler. According to one variant, the communication between the control box 13 and the electrical box 9 is carried out by a data bus-type link, but the communication can also alternatively be carried out by a radio signal, using Wifi for example . The electrical box 9 is also connected to temperature probes internal to the refrigeration system, and in particular to the air inlet and outlet of the battery. If the temperature difference measured by the outdoor sensor 14 and the indoor sensor exceeds a certain threshold, then the fans are triggered in order to stir the air contained in the room and allow a better homogeneity. If, overall, the temperature measured by the probes exceeds a certain value, the set temperature, then the coolant circulates in the battery 5 to lower the air temperature and thus reduce the gap.
La Fig. 4 présente une vue en perspective d'un local 11 contenant le refroidisseur d'air 1, une entrée 12 et des denrées stockées 15. On peut voir que le système 1 propulse l'air réfrigéré par-dessus les produits stockés et dans des directions guidées pouvant être en éventail. De cette manière, l'air réfrigéré se propage rapidement sous le plafond, évitant ainsi les denrées entreposées dans le local et les recouvre, permettant une répartition uniforme de la température dans le local 11.  Fig. 4 shows a perspective view of a room 11 containing the air cooler 1, an inlet 12 and stored food 15. It can be seen that the system 1 propels refrigerated air over the stored products and in directions guided that can be fan. In this way, the refrigerated air spreads quickly under the ceiling, thus avoiding the goods stored in the room and covers them, allowing a uniform distribution of the temperature in the room 11.
Avantageusement, la partie supérieure du refroidisseur d'air 1 peut en option comporter des déflecteurs de direction placés devant la grille d'expulsion 3. Ces déflecteurs sont orientables de droite à gauche et éventuellement vers le haut et vers le bas, de façon à produire un large flux d'air en sortie qui se répand de façon dirigée et optimale partout dans le local.  Advantageously, the upper part of the air cooler 1 may optionally comprise steering deflectors placed in front of the expulsion grid 3. These deflectors are adjustable from right to left and possibly upwards and downwards, so as to produce a large flow of air output that spreads in a directed and optimal way throughout the room.
La Fig. 5 présente une vue en perspective d'un refroidisseur d'air 1. La partie basse se termine par un embout permettant l'écoulement de l'eau produite par le dégivrage. Après installation du système de réfrigération, cet embout est relié à un tuyau contenant une résistance électrique évitant le gel de l'eau à l'intérieur.  Fig. 5 shows a perspective view of an air cooler 1. The lower part ends with a nozzle allowing the flow of water produced by defrosting. After installation of the refrigeration system, this nozzle is connected to a pipe containing an electrical resistance avoiding the freezing of the water inside.
La Fig. 5 présente la forme du chant incliné 6, ce chant permet notamment d'orienter une lampe (non représenté) dont le faisceau éclaire le bas et le devant du refroidisseur d'air 1.  Fig. 5 has the shape of inclined song 6, this song allows in particular to orient a lamp (not shown) whose beam illuminates the bottom and the front of the air cooler 1.
L'invention n'est pas limitée aux modes de réalisation qui viennent d'être décrits. En particulier, l'invention peut être mise en œuvre quel que soit la façon de générer des frigories au sein du système de réfrigération.  The invention is not limited to the embodiments that have just been described. In particular, the invention can be implemented regardless of how to generate frigories within the refrigeration system.

Claims

REVENDICATIONS
Système de refroidissement d'air (1) comportant une batterie de refroidissement (5) pour refroidir un flux d'air, et au moins un ventilateur (4), la face arrière dudit système étant destinée à être au contact du mur d'un local et sa face supérieure étant destinée à être en contact avec le plafond dudit local ; le dit flux d'air étant aspiré en partie basse (B), traversant verticalement la batterie de refroidissement (5) située en partie médiane (M) et étant expulsé par la face avant en partie haute (H) à proximité immédiate du plafond, caractérisé en ce que les épaisseurs de la partie médiane (M) comportant la batterie de refroidissement et de la partie basse (B) comportant une grille d'aspiration (2) sont inférieures à celle de la partie haute comportant l'au moins un ventilateur (4). Air cooling system (1) comprising a cooling coil (5) for cooling an air flow, and at least one fan (4), the rear face of said system being intended to be in contact with the wall of a local and its upper face being intended to be in contact with the ceiling of said room; said airflow being sucked in the lower part (B), vertically traversing the cooling battery (5) situated in the middle part (M) and being expelled by the front part at the top (H) in the immediate vicinity of the ceiling, characterized in that the thicknesses of the middle part (M) comprising the cooling coil and the lower part (B) comprising a suction grid (2) are smaller than that of the upper part comprising the at least one fan (4).
Système de refroidissement d'air selon la revendication 1, caractérisé en ce qu'il comporte un plan incliné reliant les faces avant de la partie médiane (M) et de la partie haute (H). Air cooling system according to claim 1, characterized in that it comprises an inclined plane connecting the front faces of the middle part (M) and the upper part (H).
Système de refroidissement d'air selon la revendication 2, caractérisé en ce que ledit plan incliné comporte un élément d'éclairage dont l'orientation du faisceau lumineux dépend de l'inclinaison du plan incliné. Air cooling system according to claim 2, characterized in that said inclined plane comprises a lighting element whose orientation of the light beam depends on the inclination of the inclined plane.
Système de refroidissement d'air selon l'une quelconque des revendications précédentes, caractérisé en ce que la batterie de refroidissement (5) comporte des tubes transportant un liquide caloporteur et des tubes dans lesquels se glissent des résistances de dégivrage. Air cooling system according to any one of the preceding claims, characterized in that the cooling coil (5) comprises tubes carrying a coolant and tubes in which defrosting resistors slide.
5. Système de refroidissement d'air selon la revendication 4, caractérisé en ce que les tubes contenant les résistances de dégivrage se trouvent en partie basse de la batterie de refroidissement (5). Système de refroidissement d'air selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte des déflecteurs de direction en partie haute (H) du système pour orienter le flux d'air réfrigéré. Air cooling system according to claim 4, characterized in that the tubes containing the defrost heaters are at the bottom of the cooling coil (5). Air cooling system according to any one of the preceding claims, characterized in that it comprises baffles in the upper part (H) of the system to guide the flow of refrigerated air.
Système de refroidissement d'air selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comporte une isolation thermique au-dessus de la batterie de refroidissement (5). Air cooling system according to one of the preceding claims, characterized in that it comprises thermal insulation above the cooling coil (5).
Système de refroidissement d'air selon la revendication 7, caractérisé en ce que l'isolation thermique est constituée d'une double coque métallique. Air cooling system according to claim 7, characterized in that the thermal insulation consists of a metal double shell.
Système de refroidissement d'air selon la revendication 7, caractérisé en ce que l'isolation thermique est constituée d'un mousse isolante du type à cellule fermée d'une épaisseur inférieure à 1 centimètre. Air cooling system according to claim 7, characterized in that the thermal insulation consists of a closed cell type insulating foam having a thickness of less than 1 centimeter.
Système de refroidissement d'air selon l'une quelconque des revendications précédentes, caractérisé en ce que l'épaisseur de la partie basse (B) est comprise entre 0,4 mètre et 0,6 mètre, l'épaisseur de la partie médiane (M) est comprise entre 0,4 mètre et 0,6 mètre et l'épaisseur de la partie haute (H) est inférieure à 1 mètre. Air cooling system according to any one of the preceding claims, characterized in that the thickness of the lower part (B) is between 0.4 meters and 0.6 meters, the thickness of the middle part ( M) is between 0.4 meters and 0.6 meters and the thickness of the upper part (H) is less than 1 meter.
Système de refroidissement d'air selon l'une quelconque des revendications précédentes, caractérisé en ce que la hauteur totale du système est de 1,595 mètre. Air cooling system according to one of the preceding claims, characterized in that the total height of the system is 1.595 meters.
EP15732598.6A 2014-07-07 2015-06-23 System for cooling a room with a cold air stream drawn in under the ceiling Active EP3167231B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1456540A FR3023360B1 (en) 2014-07-07 2014-07-07 COOLING SYSTEM OF A LOCAL BY A COLD AIR FLOW PULSE UNDER THE CEILING.
PCT/EP2015/064115 WO2016005183A1 (en) 2014-07-07 2015-06-23 System for cooling a room with a cold air stream drawn in under the ceiling

Publications (2)

Publication Number Publication Date
EP3167231A1 true EP3167231A1 (en) 2017-05-17
EP3167231B1 EP3167231B1 (en) 2018-08-01

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Application Number Title Priority Date Filing Date
EP15732598.6A Active EP3167231B1 (en) 2014-07-07 2015-06-23 System for cooling a room with a cold air stream drawn in under the ceiling

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EP (1) EP3167231B1 (en)
FR (1) FR3023360B1 (en)
WO (1) WO2016005183A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5587417U (en) * 1978-12-13 1980-06-17
JPS5587417A (en) 1978-12-26 1980-07-02 Nitsuko Ltd Thin film electrolytic condenser
JPS56155329A (en) * 1980-05-01 1981-12-01 Takasago Thermal Eng Co Lts Air wall unit
JPS6269027A (en) * 1985-09-20 1987-03-30 Matsushita Seiko Co Ltd Outer wall panel equipped with air-conditioning machine
DE202007001429U1 (en) * 2007-01-22 2007-03-22 Ltg Aktiengesellschaft Heating, cooling and/or ventilating device for rooms in building has ventilation device connected directly and/or indirectly to wall apertures
EP2023049B1 (en) * 2007-07-25 2013-10-30 Sanyo Electric Co., Ltd. In-ceiling mount type air conditioner and indoor unit thereof
FR2972046B1 (en) * 2011-02-24 2015-09-18 Geocal INSTALLATION OF HEATING AND / OR AIR CONDITIONING OF A ROOM

Also Published As

Publication number Publication date
FR3023360B1 (en) 2019-08-30
EP3167231B1 (en) 2018-08-01
WO2016005183A1 (en) 2016-01-14
FR3023360A1 (en) 2016-01-08

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