GB2106638A - Convector fan unit - Google Patents

Convector fan unit Download PDF

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Publication number
GB2106638A
GB2106638A GB08225808A GB8225808A GB2106638A GB 2106638 A GB2106638 A GB 2106638A GB 08225808 A GB08225808 A GB 08225808A GB 8225808 A GB8225808 A GB 8225808A GB 2106638 A GB2106638 A GB 2106638A
Authority
GB
United Kingdom
Prior art keywords
fan
partition
fan unit
housing
heat exchanger
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.)
Withdrawn
Application number
GB08225808A
Inventor
Lorenzo Bonfanti
Daniele Farina
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.)
DELCHI SpA
Original Assignee
DELCHI SpA
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 DELCHI SpA filed Critical DELCHI SpA
Publication of GB2106638A publication Critical patent/GB2106638A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on 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
    • 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
    • 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
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0233—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels
    • F28D1/024—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels with an air driving element
    • 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
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A convector fan unit (1) for the treatment of air in domestic and like environments has a heat exchanger (17) and a fan (20) contained within a housing (2) and separated by a structural reinforcing partition (15). The partition has a trough (16) for collecting condensed water in the upright position of use of the unit, and on its underside it has an arcuate surface portion (18) which forms part of the fan volute, the fan delivery outlet (21) being also provided in the partition. <IMAGE>

Description

SPECIFICATION Convector fan unit The present invention relates to a convector fan unit for treating the air in domestic, office and the like environments.
Known convector fan units for this purpose are widely used, and although they are generally satisfactory, they have several practical disadvantages which limit their use. Thus such fan units are generally of considerable size so that they are sometimes difficult to install. In addition such fan units pose a number of problems as regards routine maintenance, for example, inspection and cleaning of the fan.
An object of the present invention is to provide a convector fan unit of improved construction which is generally compact and easy to maintain.
According to the present invention there is provided a convector fan unit for treating air in domestic, office and like environments, comprising a housing containing a heat exchanger and a fan, and a structurally reinforcing partition within the housing between the heat exchanger and the fan, the surface of the partition facing the heat exchanger being formed with a trough for collecting condensed water from the heat exchanger when the housing is upright, and the opposite side of the partition having an arcuate shaped portion forming part of a volute of the fan, said partition further defining the delivery outlet of the fan.
The invention will be further described, by way of example, with reference to the appended drawings, in which: Figure 1 is a perspective view of a convector fan unit according to one embodiment of the invention; Figures 2 and 3 are schematic side views of the convector fan unit of Fig. 1 when installed in an upright position on a floor, in two different respective operational conditions; Figure 4 is a schematic side view of the convector fan unit of Fig. 1 when installed directly beneath a ceiling; Figure 5 is a longitudinal vertical section of the convector fan unit of Fig. 1, taken on line V-V in Fig. 6, and Figure 6 is a transverse cross sectional view of the convecftor fan unit of Fig. 1, taken on line VI-VI in Fig. 5.
With reference to the drawings, a convector fan unit according to the invention is generally indicated by reference numeral 1. The fan unit 1 includes a housing 2 of substantially parallelepiped shape having a bottom wall 3 and a rear wall 4 of sheet metal, two side walls 5 and 6 of plastics material and a front wall 7 and an upper wall 8 formed, at least in part, by grilles. The bottom and rear 3 and 4 constitute a monolithic framework to which the side walls 5 and 6, and the walls 7 and 8, are fixed.
The lower part of the front wall 7 is formed with an air inlet aperture 7a provided with a grille 7b and a filter 9.
The upper wall 8 is formed in two longitudinally extending sections 11 and 1 2 arranged side-by-side, of which the section 11 is flat and horizontal in the upright position of the unit (Figs. 2 and 3) and the section 1 2 is inclined at a small angle to the horizontal. The sections 11 and 1 2 are provided with respective outlet apertures 11 a and 1 2a for the treated air, equipped with respective grilles 11 band 12The grille 11 b comprises fixed longitudinally extending parallel vanes while the grille 1 2b is made up of parallel longitudinally extending vanes which can be swivelled about longitudinal axes to direct the air outflow through the aperture 12a.
A control box 1 3 is releasably mounted in a recess in the upper wall 8 and is connected by cables 14 to the fan drive motor. The length of these cables 14 is so chosen that when the convector fan unit 1 is installed directly beneath a ceiling the control box 1 3 can be removed from its recess and mounted separately from the housing 2, within arms reach, as shown in Figure 4.
A partition 1 5 extends horizontally within the housing 2 (in the upright position of the latter) at a distance of about half the height of the housing from the bottom wall 3. The partition 1 5 is fixed to the side walls 4, 5 and 6 and is made of plastics material of a sufficient mechanical strength to support components of the fan. For example, the partition 1 5 may be made of semi-expanded polystyrene, of the so-called structural type, is formed, for example, by injection moulding.
The upper side of the partition 1 5 is formed with a shallow trough 1 6 located beneath a heat exchanger 1 7 disposed within the housing 2 so as to collect condensed water therefrom in the upright position of the housing 2.
The under side of the partition 1 5 is shaped with an arcuate portion 1 8 (Fig. 6) which forms a smooth continuation of a volute 1 9 of a fan 20 located in the housing 2 below the partition 15, the said volute 1 9 having a front portion 1 9a which is removable for access to the fan 20 from the front.
Adjacent the portion 18 the partition 1 5 is formed with a delivery opening 21 which receives the air delivered by the fan 20.
The fan 20 is releasably fixed beneath the partition 1 5 by fixing elements 22 and is driven by a motor 23.
In operation of the unit air is drawn by the fan 20 through the air inlet aperture 7a and is directed through the delivery opening 21 towards the outlet apertures 11 a and 1 2 a, passing over the heat exchanger 1 7. The heat exchanger 1 7 may perform a cooling function when the fan unit 1 is used as an air condi tioner, or may perform a heating function when the fan unit 1 is used as an air heater.
The partition 1 5 is provided with a drain outlet 24 for draining condensed water from the trough 1 6. The partition 1 5 is further formed with two through holes 25 and 26, in which respective connectors (not shown) may be fixed for connection to supply pipes (not shown) for conducting heat exchanger fluid to and from the exchanger 1 7.
The fixing of the partition 1 5 to the walls 4, 5 and 6 of the housing 2 is effected by the means described below. Specifically, the partition 15 has a rear edge 15a which rests on a corresponding step 4a of the wail 4 to which the edge 1 spa is fixed by screws 27. The partition 1 5 is fixed to the side walls 5 and 6 by means of screws 28 and located by means of locating pins 29. An inwardly projecting flange 30 on the side wall 6 forms a lip for guiding the condensed water into the trough 16.
The housing 2 has closable apertures in the rear wall 4, the side wall 5 and the lower wall 3 respectively which can be used alternatively for the passage of the tubing connected to the heat exchanger 17, according to the specific installation of the fan unit.
The discharge of the treated air from the outlet apertures 11 a and 1 2a occurs in a direction which can be controlled by the orientation of the grille 1 2 b. In particular, when the vanes forming the grill 1 2b are parallel to those of the fixed grille 11, the air exits in a stream of constant width, as indicted diagrammatically in Fig. 3.
When the vanes forming the grille 1 2b are directed so as to deflect air away from the fixed grille 11 b the air exits in a stream of increasing width, as indicated in Fig. 2. In particular, the air leaving the aperture 1 2a, which has a velocity greater than that of the air leaving the aperture 11 a causes parts of the air stream leaving the aperture 11 a to be drawn towards it by virtue of the so-called "Coanda" effect. As a result the combined stream of air has a uniform distribution, as is seen in Fig. 2, of wide fan shape and low velocity, so as to improve the comfort for users.
When, on the other hand, the grille 1 2b is orientated so as to deflect air towards the fixed grille 11 b, the air exits in a stream which, at least close to the outlet apertures 11 a and 1 2a, is of narrowing width, as illustrated in Fig. 4; this effect is desirable to achieve a high penetration of the air stream into the ambient air space so as to promote circulatory flow of the air over the boundary ,urface of a room.
The main advantage of the convector fan unit according to the present invention lies in its considerable compactness, achieved by virtue of the particular arrangement and structure of the partition 1 5 between the heat exchanger 1 7 and the fan 20. The partition 1 5 serves both to reinforce and brace the housing and includes within itself the collecting trough 1 6 for the condensed water and a part of the fan 20 itself.
A further advantage of the convector fan unit 1 according to the invention lies in the ease with which maintenance can be carried out particularly the inspection and cleaning of the fan 20. Only a portion of the fan volute is in fact removable, while the remaining part remains fixed in situ.
Furthermore, the convector fan unit 1 is easier to install than conventional fan units, in any one of the various desired positions in an environment, through the possibility of placing the control box 1 3 within arm's reach, for example by removing the control box from its recess and by effecting the necessary pipework connections for heat exchange fluid in any desired direction.
Finally the convector fan unit according to the invention is structurally strong by virtue of its stiffening reinforcement by the partition.
The fan unit is also particularly well suited to be installed in harmony with the furnishing and decor of the environment for which it is destined, by virtue of the facility with which its side walls and its front wall may be interchanged with others, of selected design or colour, or personalised by the application of suitable coatings and/or colours.
Finally the convector fan unit according to the invention offers users greater comfort due to the possibility of obtaining a flow of treated air which is adjustable with continuity between a wide fan shaped stream and a jet of air.

Claims (7)

1. A convector fan unit for treating air in domestic, office and like environments, comprising a housing containing a heat exchanger and a fan, and a structurally reinforcing partition within the housing between the heat exchanger and the fan, the surface of the partition facing the heat exchanger being formed with a trough for collecting condensed water from the heat exchanger when the housing is upright, and the opposite side of the partition having an arcuate shaped portion forming part of a volute of the fan, said partition further defining the delivery outlet of the fan.
2. A fan unit according to Claim 1, in which the fan is fixed to the underside of the partition.
3. A fan unit according to Claim 1 or Claim 2, in which the fan volute has a removable portion adjacent the front of the housing.
4. A fan unit according to any one of Claims 1 to 3, in which the partition has at least two through holes for accommodating connectors or pipework associated with the heat exchanger.
5. A fan unit according to any one of the preceding claims, in which the housing is provided with two air outlet apertures arranged side-by-side and provided respectively with a fixed grille and with a flow-directing grille which can be adjusted to vary the direction of the air stream discharged through said grille.
6. A fan unit according to any one of the preceding claims, including a control box releasably mounted in a recess in the housing structure.
7. A convector fan unit substantially as herein described with reference to and as shown in the accompanying drawings.
GB08225808A 1981-09-09 1982-09-09 Convector fan unit Withdrawn GB2106638A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8122831U IT8122831V0 (en) 1981-09-09 1981-09-09 FAN COIL UNIT FOR AIR TREATMENT OF ENVIRONMENTS.

Publications (1)

Publication Number Publication Date
GB2106638A true GB2106638A (en) 1983-04-13

Family

ID=11200945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08225808A Withdrawn GB2106638A (en) 1981-09-09 1982-09-09 Convector fan unit

Country Status (4)

Country Link
DE (1) DE8225121U1 (en)
FR (1) FR2512523A3 (en)
GB (1) GB2106638A (en)
IT (1) IT8122831V0 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173291A (en) * 1985-04-08 1986-10-08 Hirayama Setsubi Kk Air conditioner
EP0244229A2 (en) * 1986-04-30 1987-11-04 IMI Air Conditioning Limited Air conditioning apparatus
GR890100221A (en) * 1989-04-06 1991-09-27 Mountzouridis Konstantinos Recycling and humidification system for the air of air conditioned spaces according to the system of transforming heating units in freezing units and air conditionners
GR890100261A (en) * 1989-04-19 1991-09-27 Mountzouridis Kon & Paulos System for transforming portable heating units making them freezing and air conditioning units by an incorporated recycling and humidification system of the air of air conditioned spaces without draining
WO2003103885A1 (en) * 2002-06-05 2003-12-18 Michel Beffrieu Modular electric motorizing unit for soldering pliers
WO2004020913A1 (en) * 2002-08-30 2004-03-11 Rosella Rizzonelli Device and method for air treatment
EP1701041A2 (en) * 2005-02-04 2006-09-13 Matsushita Electrical Industrial Co., Ltd Air conditioner
WO2007128315A1 (en) * 2006-05-09 2007-11-15 Danfoss A/S A heat exchange device
CN100460766C (en) * 2005-08-23 2009-02-11 海尔集团公司 Volute structure for indoor cabinet air conditioner
EP2446191A1 (en) * 2009-05-29 2012-05-02 Steven Neorcsik Lighting unit
CN104870827A (en) * 2012-12-25 2015-08-26 松下知识产权经营株式会社 Centrifugal fan, and fan equipped with sound-muffling box and using centrifugal fan
EP3382287A1 (en) * 2017-03-31 2018-10-03 Mitsubishi Electric R&D Centre Europe B.V. Fan coil unit
IT201800010690A1 (en) * 2018-11-29 2020-05-29 Aermec Spa FAN COIL

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19718487C2 (en) * 1997-04-30 2000-05-18 Schmidt Christel Anna Room air cooler
AUPP408298A0 (en) * 1998-06-15 1998-07-02 Backwell-Ixl Pty. Ltd. Ventilation fitting
DE202008005825U1 (en) 2008-03-19 2008-08-14 Allebacker Schulte Gmbh Gebläsekonvektorsystem
DE202009002307U1 (en) 2009-02-13 2009-05-07 Kermi Gmbh Radiator with fan assembly
CN104501308B (en) * 2014-11-21 2017-09-22 珠海格力电器股份有限公司 Seat hanging air conditioner
DE102020208201A1 (en) 2020-07-01 2022-01-05 Kermi Gmbh Heating or cooling element, in particular multi-row flat heating element or heating wall in a vertical or horizontal arrangement, with at least one fan assembly
CN116007058B (en) * 2022-12-21 2024-06-04 珠海格力电器股份有限公司 Fan subassembly and air conditioning indoor unit

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2173291A (en) * 1985-04-08 1986-10-08 Hirayama Setsubi Kk Air conditioner
GB2173291B (en) * 1985-04-08 1989-11-01 Hirayama Setsubi Kk Air conditioner
EP0244229A2 (en) * 1986-04-30 1987-11-04 IMI Air Conditioning Limited Air conditioning apparatus
EP0244229A3 (en) * 1986-04-30 1989-02-08 IMI Air Conditioning Limited Air conditioning apparatus
GR890100221A (en) * 1989-04-06 1991-09-27 Mountzouridis Konstantinos Recycling and humidification system for the air of air conditioned spaces according to the system of transforming heating units in freezing units and air conditionners
GR890100261A (en) * 1989-04-19 1991-09-27 Mountzouridis Kon & Paulos System for transforming portable heating units making them freezing and air conditioning units by an incorporated recycling and humidification system of the air of air conditioned spaces without draining
WO2003103885A1 (en) * 2002-06-05 2003-12-18 Michel Beffrieu Modular electric motorizing unit for soldering pliers
WO2004020913A1 (en) * 2002-08-30 2004-03-11 Rosella Rizzonelli Device and method for air treatment
EP1701041A2 (en) * 2005-02-04 2006-09-13 Matsushita Electrical Industrial Co., Ltd Air conditioner
EP1701041A3 (en) * 2005-02-04 2008-03-12 Matsushita Electric Industrial Co., Ltd. Air conditioner
CN100460766C (en) * 2005-08-23 2009-02-11 海尔集团公司 Volute structure for indoor cabinet air conditioner
WO2007128315A1 (en) * 2006-05-09 2007-11-15 Danfoss A/S A heat exchange device
EP2446191A1 (en) * 2009-05-29 2012-05-02 Steven Neorcsik Lighting unit
EP2446191A4 (en) * 2009-05-29 2014-01-08 Steven Neorcsik Lighting unit
CN104870827A (en) * 2012-12-25 2015-08-26 松下知识产权经营株式会社 Centrifugal fan, and fan equipped with sound-muffling box and using centrifugal fan
CN104870827B (en) * 2012-12-25 2017-07-11 松下知识产权经营株式会社 Centrifugal blower and use its blower fan with sound attenuator
EP3382287A1 (en) * 2017-03-31 2018-10-03 Mitsubishi Electric R&D Centre Europe B.V. Fan coil unit
IT201800010690A1 (en) * 2018-11-29 2020-05-29 Aermec Spa FAN COIL

Also Published As

Publication number Publication date
FR2512523A3 (en) 1983-03-11
IT8122831V0 (en) 1981-09-09
DE8225121U1 (en) 1982-12-16
FR2512523B3 (en) 1983-08-05

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