EP2926055B1 - Ventilateur avec kit pour fenêtre - Google Patents

Ventilateur avec kit pour fenêtre Download PDF

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Publication number
EP2926055B1
EP2926055B1 EP13799659.1A EP13799659A EP2926055B1 EP 2926055 B1 EP2926055 B1 EP 2926055B1 EP 13799659 A EP13799659 A EP 13799659A EP 2926055 B1 EP2926055 B1 EP 2926055B1
Authority
EP
European Patent Office
Prior art keywords
fan
window
louvers
spigot
grille
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.)
Active
Application number
EP13799659.1A
Other languages
German (de)
English (en)
Other versions
EP2926055A1 (fr
Inventor
Paul Sweeney
Neil BRADFIELD
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.)
Greenwood Air Management Ltd
Original Assignee
Greenwood Air Management Ltd
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 Greenwood Air Management Ltd filed Critical Greenwood Air Management Ltd
Publication of EP2926055A1 publication Critical patent/EP2926055A1/fr
Application granted granted Critical
Publication of EP2926055B1 publication Critical patent/EP2926055B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
    • F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use
    • 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
    • F24F7/007—Ventilation with forced flow
    • F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/068—Mechanical details of the pump control unit
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1413—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using more than one tilting member, e.g. with several pivoting blades
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/18—Air-flow control members, e.g. louvres, grilles, flaps or guide plates specially adapted for insertion in flat panels, e.g. in door or window-pane

Definitions

  • the invention relates to ventilation fans and an installation apparatus for installing the fan in a window. More particularly, the invention relates to domestic ventilation fans, e.g. extractor fans, most particularly axial ventilation fans.
  • a ventilation fan e.g. an extractor fan
  • a window kit A suitably sized hole is cut in the glass pane of the window and a mounting kit is used to clamp the window pane and to support the fan. This is often referred to as a "window kit”.
  • a fan designed for window installation is usually designed to be of limited axial extent, i.e. it should not extend too far either side of the window.
  • the length of the fan is less of an issue in a wall or ceiling installation as there is more room to accommodate the fan.
  • GB 910,474 discloses a window-mounted fan with radially-mounted pivoting shutter plates to blank off openings.
  • DE 1135644 discloses pivotable slats which close under their own weight but open from the air flow generated by a fan.
  • control PCBs printed circuit boards
  • the fan unit therefore needs space to accommodate these PCBs and components. It is also desirable to incorporate voltage transformers and/or regulators within the fan so that a separate unit is not required for that.
  • the components of those circuits are often large and bulky, e.g. transformers and capacitors.
  • a fan is to be installed in a wall
  • these components and circuit boards can be installed within the central spigot of the fan, along with the motor. This makes the spigot longer.
  • a longer spigot is usually undesirable in a window installation.
  • a grille needs to be placed behind the spigot to prevent foreign objects from entering the fan from outside while allowing air to flow out of the rear of the fan.
  • the grilles for window kits have provided vents to the sides rather than directly rear facing vents.
  • the grille be spaced some way back from the rear end of the spigot in order to provide room for the air to change flow direction without creating too much resistance. Therefore in order to incorporate all of these features, without making the fan too long, the spigot had to be kept short and did not have room to house control circuits alongside the motor. Instead, control circuits could be mounted in the front mounting plate of the fan, but that then increases the size of the front of the fan, i.e. it presents a larger, more dominating frontage to the user in the room.
  • a fan for installation in a window comprising a cylindrical main body having an inner spigot and a concentric outer sleeve such that air flows between the inner spigot and the outer sleeve; wherein the inner spigot houses a motor for driving an impeller; and wherein the fan further comprises a window attachment mechanism for attaching the fan in a window and a rear grille located behind the main body, the rear grille comprising a plurality of louvers that open when the fan is in operation.
  • the inner spigot further houses control electronics for controlling the motor and electronics for voltage transformation.
  • louvers conveniently provide a back draught shutter as they are designed only to open in one direction. Therefore when the fan is inoperative, there is no (or minimal) back flow through the fan into the building.
  • the louvers add some resistance to the air flow exhausting from the back of the fan, this is not excessive and does not impact significantly on the efficiency of the fan. Being able to incorporate more sophisticated controls into the smaller fan, improves the efficiency more than is lost through added air resistance.
  • the louvers are rotatably mounted so that they hang in a closed position when the fan is not in operation and swing open when air is driven through the fan.
  • the louvers are preferably horizontally arranged.
  • the louvers may be rotatably mounted about their upper edges so that they pivot around their upper edges when they swing open as the fan is operated, and hang closed under gravity when the fan is not in operation. If the louvers are mounted vertically, a spring or other biasing means will be required to shut them when the fan is not in operation. However this adds extra components and potentially extra air resistance and so is less preferred.
  • louvers can be varied. Smaller louvers will require less energy to open, but a greater number are required to cover the necessary area. In particularly preferred embodiments 3 to 6, preferably 4 or 5 louvers are used for standard sized domestic ventilation fans with a diameter of 100 mm or 150 mm.
  • a low voltage electricity supply may sometimes be available, but normally it is preferred to wire the plug directly to the buildings mains supply or simply to plug the fan into a standard power socket connected to the buildings mains supply.
  • voltage transformation circuitry is required to convert the building mains supply (e.g. 240 Volt AC) to for example a 24 Volt DC supply for the motor.
  • the PCBs for electronics and voltage control typically add around 30 mm to the length of the spigot.
  • the fan may have various features such as an overrun timer (connected to a light switch or a pull cord or both), humidity sensors and controls and speed control settings (e.g. to adapt the fan to different circumstances or to provide a temporary boost in speed when deemed necessary). These controls are also preferably housed within the spigot.
  • the distance between the rear end of the impeller and the rear grille is between 5 mm and 50 mm, more preferably between 10 mm and 35 mm.
  • the distance varies depending on the thickness of the window glass, e.g. single-glazed versus double-glazed windows.
  • the window attachment mechanism comprises an inside plate and an outside plate arranged to clamp the window pane in use.
  • the fan main body is typically mounted to the inner plate and extends through the opening in the window, while the grille is typically mounted to the external plate.
  • Fig. 1 shows a fan unit 100 with the various parts of a window kit according to the invention assembled together on a fan.
  • the window is not shown in these drawings.
  • Fan unit 100 has a front mounting plate 120 which may be used to mount the fan unit 100 to a wall or ceiling if it is not being used with a window kit. Fan unit 100 also has a decorative front plate 130 which is separated from front mounting plate 120 so as to permit air flow into the fan unit 100 between the front plate 130 and the front mounting plate 120.
  • the decorative front plate provides a more aesthetic appearance to the room in which the fan unit 100 is installed as it hides the grille and impeller from view from the room.
  • the fan main body 110 comprises an outer sleeve and a concentric inner spigot 300. In use, air is driven axially by the impeller 330 between the spigot 300 and the outer sleeve. When the fan unit 100 is mounted in the window, the outer sleeve of the main body 110 extends through the aperture in the window.
  • the window kit comprises a separator 140 which spaces the front mounting plate 120 from the inside surface of the window to which the fan unit 100 is to be mounted. This separator 140 positions the fan unit 100 within the window opening in a balanced fashion.
  • a rear mounting plate 150 is provided for contact with the outside surface of the window to which the fan unit 100 is to be mounted.
  • the front mounting plate 130 and the rear mounting plate 150 are connected to each other in use by a number of screws (or similar fastening means) which extend through the opening in the window and squeeze front mounting plate 130 and rear mounting plate 150 together to clamp the window between the separator 140 and the rear mounting plate 150.
  • the rear grille structure 160 is mounted to the outer side of the rear mounting plate 150 and covers the rear end of the fan unit 100. Reference numeral 200 indicates where the window would be if the assembly were mounted to a window.
  • Rear grille structure 160 comprises a number of louvers 170 (four in the embodiment shown in Fig. 1 , but a different number of louvers may be used in other embodiments).
  • the louvers are hinged around their top edge so that in the absence of any air flow through the fan unit 100, the louvers 170 hang under gravity as shown in Fig. 1 .
  • the air pushes the louver 170 open, pivoting them around their upper edges and allowing air to pass and to be exhausted to the outside.
  • Louvers 170 are openable only in the outer direction and cannot be blown inwards. The louvers 170 therefore act as a backflow shutter, preventing wind from causing a draught into the building when the fan is not in operation.
  • Fig. 2 shows the same fan unit 100 as Fig. 1 , but additionally shows a pull cord 180 and more clearly shows the gap 200 where the window is located when the fan unit 100 and window kit are mounted.
  • Fig. 3 shows a rear isometric view of a fan unit 100, similar to Fig. 1 , but showing a second embodiment with five louvers 170 and with the louvers 170 open.
  • Fig. 4 shows a cross-section through the fan unit 100 along the axis of the fan.
  • a central spigot 300 is concentric with the fan main body 110 and houses the electronics for the fan as well as providing a mount point for decorative front plate 130.
  • This cross-sectional view shows how two printed circuit boards 340, 350 are mounted within the central spigot 300 of the fan unit 100.
  • PCB 340 contains voltage transformation circuitry while PCB 350 comprises control circuitry which drives motor 310 which is also mounted within the central spigot 300 and which has impeller 320 mounted on its motor shaft 330.
  • the rear face of the impeller is very close to the rear grille 165 which is part of the grille structure 160 together with louvers 170.
  • the proximity of these elements is due to the length of the spigot 300 required to house the electronics.
  • the proximity of the impeller and the grille structure 160 is not problematic due to the use of louvers 170 which open as soon as air is driven through the fan.
  • the distance between the rear of the impeller 320 and the grille structure 160 varies between about 10 mm and 35 mm depending on the thickness of the glass in the window. Installation on a single glazed window will result in a distance of around 10 mm whereas installation on a double glazed window will result in a distance of around 35 mm.
  • Housing the PCBs 340, 350 within the spigot 300 means that the fan can have a smaller overall size facing into the room. It can be seen from Fig. 4 that the front mounting plate 120 has minimal excess space around the air intake opening 400 so as to minimise the visual impact of the fan unit 100. At the same time, the overall length of the fan, including the window kit and rear grille structure 160 is not excessive as the distance between the impeller and the grille structure 160 is minimised, again reducing the visual impact of the fan unit 100 as a whole.
  • Fig. 6 shows the first embodiment mounted in a window 500.
  • Rear mounting plate 150 and grille structure 160 are on the outside of the window 500, with the rear mounting plate 150 in contact with the window 500.
  • Decorative panel 130, front mounting plate 120 and separator 140 are on the inside of the window 500 with the separator 140 in contact with the window 500.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (7)

  1. Ventilateur pour installation dans une fenêtre, le ventilateur comprenant un corps principal cylindrique (110) ayant un fausset intérieur (300) et un manchon extérieur concentrique de sorte que de l'air s'écoule entre le fausset intérieur (300) et le manchon extérieur ;
    dans lequel le fausset intérieur (300) loge un moteur (310) pour entraîner une roue à aubes (320) ;
    dans lequel le ventilateur comprend en outre un mécanisme d'attachement à une fenêtre pour attacher le ventilateur dans une fenêtre (500) et une grille arrière (160) située derrière le corps principal (110), la grille arrière (160) comprenant une pluralité de déflecteurs (170) qui s'ouvrent lorsque le ventilateur est en fonctionnement; et caractérisé en ce que
    le fausset intérieur (300) loge en outre de l'électronique de commande (340, 350) pour commander le moteur (310) et de l'électronique pour la transformation de tension.
  2. Ventilateur selon la revendication 1, dans lequel les déflecteurs (170) sont montés en rotation de sorte qu'ils se présentent dans une position fermée quand le ventilateur n'est pas en fonctionnement et qui s'ouvrent en basculant lorsque de l'air est entraîné par le ventilateur.
  3. Ventilateur selon la revendication 2, dans lequel les déflecteurs (170) sont montés en rotation autour de leurs bords supérieurs.
  4. Ventilateur selon l'une quelconque des revendications précédentes, dans lequel de l'électronique pour la transformation de tension est prévue sur une première PCB (340) et l'électronique de commande pour le moteur est prévue sur une seconde PCB (350).
  5. Ventilateur selon l'une quelconque des revendications précédentes, dans lequel la distance entre l'extrémité arrière de la roue à aubes (320) et la grille arrière (160) est entre 5 mm et 50 mm.
  6. Ventilateur selon la revendication 5, dans lequel la distance entre l'extrémité arrière de la roue à aubes (320) et la grille arrière (160) fait entre 10 mm et 35 mm.
  7. Ventilateur selon l'une quelconque des revendications précédentes, dans lequel le mécanisme d'attachement à une fenêtre comprend une plaque intérieure (140) et une plaque extérieure (150) agencées pour serrer le carreau (500) lors de l'utilisation.
EP13799659.1A 2012-11-30 2013-11-29 Ventilateur avec kit pour fenêtre Active EP2926055B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1221650.3A GB2508423A (en) 2012-11-30 2012-11-30 A fan installed in a building component
PCT/GB2013/053170 WO2014083356A1 (fr) 2012-11-30 2013-11-29 Ventilateur avec kit pour fenêtre

Publications (2)

Publication Number Publication Date
EP2926055A1 EP2926055A1 (fr) 2015-10-07
EP2926055B1 true EP2926055B1 (fr) 2018-08-08

Family

ID=49713408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13799659.1A Active EP2926055B1 (fr) 2012-11-30 2013-11-29 Ventilateur avec kit pour fenêtre

Country Status (3)

Country Link
EP (1) EP2926055B1 (fr)
GB (1) GB2508423A (fr)
WO (1) WO2014083356A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU174370U1 (ru) * 2015-06-29 2017-10-11 Ангел Йорданов СТЕФАНОВ Вентиляционное устройство с радиальным исходящим воздушным потоком
WO2019139379A1 (fr) * 2018-01-11 2019-07-18 유블로 주식회사 Système de ventilation d'intérieur
US20190234647A1 (en) * 2018-01-30 2019-08-01 Quanta Computer Inc. Louver integrated design for fan module
NL1043812B1 (en) * 2020-10-08 2022-06-07 Alcomij Beheer Bv Climate control system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1135644B (de) * 1959-06-12 1962-08-30 Christian Eduard Iversen Jalousieklappe mit schwenkbaren Lamellen
GB910474A (en) * 1960-01-06 1962-11-14 Vent Axia Ltd Improvements in and relating to fans
NL6404576A (fr) * 1963-09-10 1965-03-11
DE1604121A1 (de) * 1965-07-08 1970-09-10 Aaberg C Anlage zur Bewerkstelligung von Lufterneuerung in Raeumen,insbesondere Staellen
JPS5717231Y2 (fr) * 1977-05-16 1982-04-10
JPS5753329Y2 (fr) * 1978-03-29 1982-11-18
JPS58102039A (ja) * 1981-12-14 1983-06-17 Toshiba Corp 送風装置
JPS5938625U (ja) * 1982-09-06 1984-03-12 タカラスタンダ−ド株式会社 換気扇のシヤツタ装置
JPS59129027U (ja) * 1983-02-10 1984-08-30 株式会社東芝 換気装置用シヤツタ
DE3500641A1 (de) * 1984-01-12 1986-07-10 Maico Elektroapparate-Fabrik GmbH, 7730 Villingen-Schwenningen Verschlusseinrichtung fuer lueftungskanaele o.dgl.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2014083356A1 (fr) 2014-06-05
EP2926055A1 (fr) 2015-10-07
GB2508423A (en) 2014-06-04

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