EP0607116B1 - Pièce de bout pour climatiseurs pour locaux - Google Patents

Pièce de bout pour climatiseurs pour locaux Download PDF

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Publication number
EP0607116B1
EP0607116B1 EP94890004A EP94890004A EP0607116B1 EP 0607116 B1 EP0607116 B1 EP 0607116B1 EP 94890004 A EP94890004 A EP 94890004A EP 94890004 A EP94890004 A EP 94890004A EP 0607116 B1 EP0607116 B1 EP 0607116B1
Authority
EP
European Patent Office
Prior art keywords
air
end piece
housing
floor
suction
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.)
Expired - Lifetime
Application number
EP94890004A
Other languages
German (de)
English (en)
Other versions
EP0607116A1 (fr
Inventor
Cosimo Catalano
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.)
Hiross International Corp BV
Original Assignee
Hiross International Corp BV
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Filing date
Publication date
Application filed by Hiross International Corp BV filed Critical Hiross International Corp BV
Publication of EP0607116A1 publication Critical patent/EP0607116A1/fr
Application granted granted Critical
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/10—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with air supply, or exhaust, through perforated wall, floor or 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
    • F24F1/0053—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted at least partially below the floor; with air distribution below the floor
    • 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
    • F24F2221/40—HVAC with raised floors

Definitions

  • the invention relates to an end piece for room air conditioning systems, which has a box structure, which is arranged below a floor designed as a double floor and supported by support beams on the ground.
  • Known devices of this type are usually installed below the floor level, especially if the floor is designed as a double floor.
  • the function of these end pieces is, on the one hand, to extract fresh air prepared by a central air conditioning system from the cavity below the floor and to introduce it into a room to be air-conditioned, and on the other hand to circulate the air in the room to be air-conditioned, possibly while heating it.
  • the control of the room parameters e.g. Temperature or humidity.
  • Known end pieces of this type comprise a box structure which is arranged below a floor and is divided into an air suction chamber and a blower chamber.
  • the air intake chamber is connected on one side via a first floor grille to the room to be air-conditioned and on the other side to the cavity below the floor, in which the fan inputs are located.
  • the blower chamber is in turn connected on one side to the room to be air-conditioned via a second floor grille, while the other side is connected to the fan outlets.
  • the suction chamber is also provided with an opening through which conditioned air from the central air conditioning system can be sucked in via the floor cavity, with the help of a control flap, the air flows from the first floor grille and from the cavity opening in an arbitrarily adjustable mixing ratio to a total air flow that is in the inputs of the fans are guided, be united (see EP-A-0 207 718).
  • End pieces of this type have several disadvantages, a major disadvantage of which is that at least two floor grilles are required, one for sucking in the air for the suction chamber and one for blowing out the air via the blower chamber.
  • the box structure comprises a first housing which communicates with the space to be air-conditioned by means of air passage, such as e.g. a floor grille, which is connected and which is divided into at least one suction chamber and at least one blower chamber, the chambers being connected to the interior of a second housing via associated openings, the second housing having at least one opening for air entry, e.g. from a floor cavity, and in which second housing means are provided for controlling the intake air flow (s) and means for air circulation.
  • the suction chamber (s) and blower chamber (s) are combined in one housing.
  • the dimensions of the end piece can thereby be reduced, as a result of which the losses during air transport can be kept low. As a result, fans of a smaller design can be used. In addition, the compact design also results in a reduction in heat losses due to the smaller surface area of the arrangement. In addition, the end piece can be installed as a finished unit and does not have to be assembled from several individual pieces.
  • the suction and blower chamber have a common means for air passage, such as e.g. a one-piece floor grille is assigned.
  • a one-piece floor grille for both chambers reduces the installation costs compared to known end pieces of this type, since only one floor recess has to be created.
  • the means for controlling the intake air flow (s) are formed from a flap which is arranged in such a way that when the intake air flow (s) is opened from the room to be air-conditioned, the air inlet can be regulated, for example from a floor cavity closed, especially closed, and vice versa.
  • This makes it possible to close the opening in the suction chamber and thus to draw in only conditioned air via the cavity opening of the second housing with the aid of the fans and to convey it into the room via the blower chamber.
  • the cavity opening is closed by means of the flap, air can only be drawn from the room to the fans via the suction chamber and can be returned to the fans through the fan chamber.
  • the latter operating mode corresponds to the circulation of the room air.
  • the air could also be mixed.
  • means for controlling room parameters such as e.g. Temperature, humidity, etc. are provided.
  • the air that has already been preconditioned in the central air conditioning system can be further changed in its state by such a control. This is also because the temperature or another room parameter could change due to long air flow paths through the floor cavity.
  • individual regulation of the parameters for different requirements may be desired.
  • the suction chamber (s) and blower chamber (s) are arranged immediately adjacent to one another, in particular the suction chamber or chambers holds the blower chamber (s) between them.
  • a blower chamber or chambers surrounded in this way by one or more suction chambers generates a directed air flow into the room to be air-conditioned, the air rising when heated in the end piece due to its low density in the room, while the suction chambers mounted on the outside in relation to the blower chamber follow suck in cooler air as it flows through the room.
  • the first housing upwards against the means for air passage e.g. the floor grille is open.
  • a first housing which is open at the top, causes a directed air flow out of the blower chamber, as a result of which firstly a movement of the conditioned air is achieved in the shortest way into the upper part of the room to be conditioned. Then this volume of air can be distributed over the entire room to the people in the lower part of the room.
  • the air is used up by breathing processes, i.e. its oxygen content is lower than before and, if it was previously heated, cooled.
  • this used air is now fed back into the air conditioning system via the floor grille and the suction chamber (s). This results in a favorable circulation of the air, with the fan and intake flow having only very little influence.
  • the first housing is in the form of an parallelepiped open upwardly against the air passage means such as the floor grille, which is divided by vertical walls into two outer suction chambers and a blower chamber located therebetween.
  • the suction chambers surround the blower chamber in a fluidically favorable manner.
  • the chambers are located under a rectangular floor grille so that room air can enter the intake chambers through the same grille and conditioned air can escape.
  • the blower chamber can, for example, be cylindrical and the suction chamber can be in the form of a hollow cylinder surrounding the blower chamber, or a plurality of suction chambers can be formed by parts of such a hollow cylinder. In this case, the exhaust and supply air could pass through a circular floor grille.
  • the blower chamber has orifices for the means for air circulation. At such mouth openings, the fans can be attached in a pressure-tight manner, so that there can be no pressure compensation between the suction and blower sides.
  • the means for air circulation are formed from two fans, which are driven together by a single electric motor, the motor being firmly connected to the first housing.
  • the division of the air flow between two fans has advantages in terms of flow technology, since the formation of eddies and thus friction losses are reduced.
  • the suction chambers have openings which are made in the bottom of the first housing.
  • the air stream can be sucked in from the room to be air-conditioned via such openings in order to get into the blower chamber via the flap and the fans and from there back into the room.
  • a further preferred embodiment consists in that the flap is rotatable about a horizontal axis between a first and a second position, the openings of the suction chambers being closed in the first position and the passage of the air coming from the floor cavity to the fans in the second position is locked, in which position the flap rests on the bottom of the second housing.
  • the flap which is continuously adjustable between these two end points, can be brought into different positions and is so positioned in relation to the openings that the conditioned air flow from the suction chambers increases to the same extent as the reduced air flow from the air conditioning system.
  • the second housing has a trough-shaped structure and is provided with a suction opening which is arranged in the region of the flap and which is connected to the floor cavity. Air-conditioned fresh air can be sucked in through such a cavity opening, the strength of this air flow being influenced by the position of the flap.
  • a further embodiment of the invention of the invention is that the flap is coupled to a motor winder.
  • the flap can be moved into a certain position by a motor winder, so that depending on the position of the flap there is a certain mixing ratio of fresh and circulating air.
  • FIG. 1 shows a schematic view of the longitudinal section of an end piece according to the invention for room air conditioning
  • 2 shows a section along line AA 'through the end piece according to Fig. 1
  • 3 shows a perspective view of the first housing with the suction and blower chambers according to FIG.
  • FIG. 1 shows a preferred embodiment of the invention.
  • An end piece 10 of a room air conditioner is arranged below a floor 11 designed as a double floor, supported by conventional support beams 12 on the ground.
  • the end piece 10 comprises a box structure, consisting of a first housing 13 and a trough-shaped, second housing 36. Air enters the suction chambers 16 and 17 via a floor grille 19 and conditioned or circulated air is blown out of the blower chamber 18.
  • two fans 22, 23 are driven jointly by a single motor 24, which is lying between them and fastened to a carrier 25, which in turn is expediently fastened to the housing 13, for example by means of screws.
  • the suction chambers 16 and 17 have openings 26 and 27 pointing downward into the second housing 36.
  • an element 28 made of folded sheet metal with a C-shaped cross section is fastened, in the interior of which the electrical components and the control components 29 for controlling the room parameters, such as Temperature and humidity are accommodated.
  • a support 30 made of folded sheet metal for a motor winder 31 for controlling a flap 32 for closing the openings 26 and 27 is fastened below the element 28, for example by means of screws.
  • the flap 32 also serves to control the intake air flows and is rotatably arranged about a horizontal axis so that it can be brought by the motor winder 31 at an angle between an upper and a lower (dashed) position.
  • a cantilever 33 which is connected to the axis of rotation of the flap 32 and is normal to it, is one end of a band 34 which is attached at its other end to a winding pulley 35 which is on the axis of the motor winder 31 is wedged.
  • the motor winder 31 running in only one direction of rotation winds the belt 34 on the belt pulley 35 in order to pivot the flap 32 upwards. If the engine is de-energized, the flap 32 sinks due to its own weight while the roller 34 unwinds.
  • the first housing 13, fans 22 and 23, element 28, motor winder 31 and flap 32 are contained in the second, trough-shaped housing 36, in the wall of which in the vicinity of the motor winder 31 an opening 37 is arranged for air to enter from the hollow underbody is.
  • the underside of the second body 36 defines a stop for the lower position of the flap 32.
  • the air drawn in in the chambers 16 and 17 passes through the fans 22 and 23 into the chamber 18 in order to be returned to the room, heating being possible by means of a ribbed electrical resistor 38 arranged in the blower chamber 18 (FIG .3).
  • FIG. 3 shows the first housing 13 in the form of a parallelepiped made of folded sheet metal, which is open at the top and is divided by two walls, 14 and 15, into two outer suction chambers 16 and 17 and into a central blower chamber 18.
  • the chambers 16, 17 and 18 are connected to the room to be air-conditioned by means of a single floor grid 19, which is only shown in FIG. 1.
  • the partitions 14 and 15 extend apart against a wall of the housing 13 in which two openings 20 and 21 are arranged as fan openings of the two fans 22 and 23, which are shown in FIG.
  • the air sucked into the chambers 16 and 17 passes through the fans 22 and 23 into the chamber 18 in order to be returned to the room, wherein heating is possible by means of a ribbed electrical resistor 38 arranged in the blower chamber 18.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Claims (13)

  1. Pièce d'extrémité (10) pour installations de climatisation de locaux, qui présente une structure en caisson qui est placée sous un plancher (11) du type double plancher et supporté par le sol par l'intermédiaire de supports (12), caractérisée par le fait que la structure en caisson comprend une première boîte (13) qui communique avec le local à climatiser par des moyens (19) de passage d'air, par exemple une grille de sol, et est divisée en au moins une chambre d'aspiration (16, 17) et au moins une chambre à ventilateurs (18), ces chambres communiquant par des ouvertures afférentes (20, 21, 26, 27) avec l'intérieur d'une deuxième boîte (36) qui est pourvue d'au moins un orifice (37) d'entrée d'air, par exemple depuis une cavité de plancher, et dans laquelle sont prévus des moyens (32) de commande du courant ou des courants d'air aspiré et des moyens (22, 23) de circulation d'air.
  2. Pièce d'extrémité selon la revendication 1, caractérisée par le fait qu'aux chambres d'aspiration et à ventilateurs est adjoint un moyen commun de passage d'air, par exemple une grille de sol d'une seule pièce.
  3. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait que les moyens de commande du courant ou des courants d'air aspiré sont formés d'un volet qui est placé de façon que, en cas d'ouverture du courant ou des courants d'air aspiré venant du local à climatiser, il ferme de manière réglable, en particulier complètement, le courant d'entrée d'air, venant par exemple d'une cavité de plancher, et inversement.
  4. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait qu'il est prévu des moyens de régulation de paramètres ambiants, par exemple de la température, de l'humidité de l'air, etc.
  5. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la ou les chambres d'aspiration et la ou les chambres à ventilateurs sont immédiatement contiguës, en particulier, la ou les chambres d'aspiration reçoit ou reçoivent entre elle(s) la ou les chambres à ventilateurs.
  6. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la première boîte est ouverte en haut vers les moyens de passage d'air, par exemple la grille de sol.
  7. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la première boîte a la forme d'un parallélépipède ouvert en haut vers les moyens de passage d'air, par exemple la grille de sol, et divisé par des parois verticales en deux chambres d'aspiration extérieures et une chambre à ventilateurs placée entre celles-ci.
  8. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la chambre à ventilateurs présente des orifices pour les moyens de circulation d'air.
  9. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait que les moyens de circulation d'air sont formés de deux ventilateurs qui sont entraînés en commun par un moteur électrique unique qui est fixé à la première boîte.
  10. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait que les chambres d'aspiration présentent des ouvertures qui sont faites dans le fond de la première boîte.
  11. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait que le volet peut tourner autour d'un axe horizontal entre des première et deuxième positions, les ouvertures des chambres d'aspiration étant fermées dans la première position, et, le passage vers le ventilateurs de l'air venant de la cavité de plancher étant fermé dans la deuxième position, et, dans cette position, le volet repose sur le fond de la deuxième boîte.
  12. Pièce d'extrémité selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la deuxième boîte présente une structure en forme de baquet et est pourvue d'un orifice d'aspiration placé dans la zone du volet qui communique avec la cavité de plancher.
  13. Pièce d'extrémité selon une ou plusieurs des revendications 3 à 12, caractérisée par le fait que le volet est accouplé à un enrouleur à moteur (31).
EP94890004A 1993-01-13 1994-01-12 Pièce de bout pour climatiseurs pour locaux Expired - Lifetime EP0607116B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0004293A AT401423B (de) 1993-01-13 1993-01-13 Endstück für raumklimaanlagen
AT42/93 1993-01-13

Publications (2)

Publication Number Publication Date
EP0607116A1 EP0607116A1 (fr) 1994-07-20
EP0607116B1 true EP0607116B1 (fr) 1997-05-14

Family

ID=3479989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94890004A Expired - Lifetime EP0607116B1 (fr) 1993-01-13 1994-01-12 Pièce de bout pour climatiseurs pour locaux

Country Status (3)

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EP (1) EP0607116B1 (fr)
AT (2) AT401423B (fr)
DE (1) DE59402685D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6019677A (en) * 1997-08-22 2000-02-01 York International Corporation Modular integrated terminals and associated systems for heating and cooling
US20070066213A1 (en) * 2002-05-17 2007-03-22 Andrew Helgeson Variable air volume time modulated floor terminal
GB2403000A (en) * 2003-06-18 2004-12-22 Trox An air vent having a grille with a detachable fan unit
US7722449B2 (en) 2004-10-20 2010-05-25 E.H. Price, Limited Air channel grill for security institutions
US20120090252A1 (en) * 2009-04-17 2012-04-19 Petar Zlatar Access floor assembly and components therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL36563C (fr) * 1900-01-01
US4531454A (en) * 1983-08-29 1985-07-30 Spoormaker Hendrik J Air conditioning system
EP0207718B1 (fr) * 1985-07-05 1990-12-27 Atlas Air (Australia) Pty. Limited Conditionnement de l'air agissant sur une zone limitée
US4742957A (en) * 1985-09-20 1988-05-10 Stephen Mentuch Heat recovery ventilator
FR2654196B1 (fr) * 1989-11-06 1994-11-18 Gorsse Patrick Procede de climatisation pour locaux equipes de plancher sureleve.
FR2656071A1 (fr) * 1989-12-20 1991-06-21 Montaz Edmond Dispositif de regulation en temperature d'un local.

Also Published As

Publication number Publication date
ATE153124T1 (de) 1997-05-15
DE59402685D1 (de) 1997-06-19
AT401423B (de) 1996-09-25
ATA4293A (de) 1996-01-15
EP0607116A1 (fr) 1994-07-20

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