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WO1994008142A1 - Filtre a air pour un ventilateur de plafond - Google Patents

Filtre a air pour un ventilateur de plafond Download PDF

Info

Publication number
WO1994008142A1
WO1994008142A1 PCT/AU1993/000505 AU9300505W WO9408142A1 WO 1994008142 A1 WO1994008142 A1 WO 1994008142A1 AU 9300505 W AU9300505 W AU 9300505W WO 9408142 A1 WO9408142 A1 WO 9408142A1
Authority
WO
WIPO (PCT)
Prior art keywords
cowling
fan
filter
filter device
air
Prior art date
Application number
PCT/AU1993/000505
Other languages
English (en)
Inventor
Paul Amigo
Original Assignee
Paul Amigo
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 Paul Amigo filed Critical Paul Amigo
Priority to AU51440/93A priority Critical patent/AU5144093A/en
Publication of WO1994008142A1 publication Critical patent/WO1994008142A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0088—Ventilating systems
    • 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
    • F04D25/088—Ceiling 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards

Definitions

  • This invention relates to an air filter for use in conjunction with a ceiling fan.
  • Ceiling fans create circulating air currents within a room and the currents cause particles, including dust particles and aerosols, to remain airborne. The vast majority of such particles are prevented from settling and those that do are readily disturbed by persons moving within the room or by externally induced drafts.
  • the airborne particles may contribute significantly to health problems, particularly for persons who suffer from respiratory tract disorders. Such disorders are aggravated when a person is exposed to the airborne particles for prolonged periods of time and this occurs particularly during summer months when people choose to sleep with ceiling fans running throughout the night.
  • BACKGROUND ART In ducted air recirculating systems, including hot air and air conditioning systems, the problem can largely be avoided by locating a filter chamber in the duct circuit and by trapping particles that would otherwise be recirculated. A similar effect is sometimes obtained by locating wall fans in circuit with filter chambers or pads.
  • ceiling fans are designed specifically for moving relative large air volumes with little noise, using large slow-speed blades, and they cannot be wall mounted or duct mounted to associated filter chambers without abandoning benefits that make the ceiling fans attractive, particularly for use in the quiet of night.
  • the present invention seeks to minimise the recirculation of particles by providing a particle trap for use in conjunction with a ceiling fan.
  • the invention provides a filter device which is arranged to be mounted to a ceiling fan and which comprises a filter support which is shaped and sized to embrace at least a portion of the swept area of the fan blades and which permits substantially free flow of air to and from the fan blades.
  • Means are provided for mounting the filter support adjacent the fan blades, and a particle filter is carried by the filter support in such a manner as to trap particles entrained in air which is drawn toward or passed through the fan.
  • the filter support may be located either above or below the fan blades.
  • the filter device in accordance with the invention may be mounted permanently to a ceiling fan which is sold with the device already fitted, or the filter device may be constructed to be sold as a separate unit for fitting to a pre-existing fan.
  • the device In the case of a filter device which is intended to be mounted to a previously installed ceiling fan, it is desirable that the device be constructed so that it may be mounted to a tube that is employed to suspend the fan from a ceiling without there being a need to demount the fan from the ceiling.
  • the filter device may be mounted to the fan in an indirect way, for example by suspending the filter support from the ceiling by way of hangers.
  • the filter support may comprise or incorporate a cowling which, in use, surrounds the fan blades.
  • the cowling may be formed, for example, by moulding from a lightweight plastics material or from thin gauge sheet metal, preferably a light metal such as aluminium.
  • the cowling does not need to have great structural strength, because its main purpose is to carry the particle filter in a manner such that the filter will be exposed to at least a major portion of the air that flows through the fan.
  • the portion of the cowling through which the air passes has a predominantly open structure but includes a skeletal frame or open mesh support upon which the particle filter is carried. Diffusers may be mounted to or be formed integrally with the cowling and be positioned in the path of air flowing through the cowling.
  • the diffusers may be used for the purpose of deflecting the air that passes through the fan blades and for creating a desired air flow pattern.
  • the diffusers may be located either above or below the fan blades and, when located below the fan blades, may be employed for supporting the particle filter. However, the diffusers may be located at one side of the fan blades and the particle filter be located at the other side of the fan blades in the direction of air movement through the fan.
  • Electric lamps may if desired be mounted to the cowling for functional and/or decorative purposes.
  • Figure 1 shows an elevation view of a filter device mounted to a ceiling fan in accordance with a first embodiment of the invention
  • Figure 2 shows an elevation view of a filter device mounted to a ceiling fan in accordance with a second embodiment of the invention
  • FIG 3 shows an underside plan view of the filter unit which is shown in Figure 2 of the drawings.
  • Figure 4 shows an elevation view of a filter element mounted in an indirect way to the ceiling fan and in accordance with a third embodiment of the invention, and
  • Figure 5 shows a perspective view from the underside of a ceiling fan with light fittings mounted to a cowling portion of the ceiling fan.
  • a ceiling fan 10 having an electric motor 11 and blades 12 is suspended from a room ceiling by a suspension tube 14.
  • a filter device which is arranged to trap particles that are entrained in recirculating air is mounted to the ceiling fan.
  • the filter device comprises a cowling 15 which includes a peripheral wall 16, an open lower region 17 within the wall 16, and a generally open skeletal framework 18 extending inwardly from the upper region of the wall 16.
  • the inner region of the skeletal frame 18 includes a hub 19 which is arranged to locate about and be secured to the suspension tube 14.
  • An air permeable filter 20 which may be in the form of a pad or cloth, is carried by the skeletal frame 18 and, by being located above the fan blades 12, it is arranged to trap airborne particles that are induced to move in a direction toward and through the fan blades 12.
  • the skeletal structure 18 and the filters 20 are selected so as to present minimum impedance to airflow through the cowling and thus, through the fan blades.
  • FIG. 2 and 3 The embodiment of the- invention which is shown in Figures 2 and 3 is similar to that which has been described with reference to Figure 1, but the cowling 15 has an open upper region and an expanded metal mesh 21 located in a lower region of the cowling and positioned below the fan blades 12.
  • the mesh carries (that is supports) an air permeable filter 20 which also locates below the blades 12.
  • a central region 22 of the cowling 15 is formed as a hub and the cowling is secured directly to the motor housing 11 of the fan by way of a screw 23. Also, a metal plate 24 is interposed between the head of the screw 23 and the hub region 22 of the cowling.
  • the cowling 15 as seen from below covers the entire swept area of the fan, but the cowling is formed with diffusers 25 which are shaped and positioned to impart a desired direction to the movement of air which passes through the fan.
  • the diffusers 25 may be formed as segmented groups of louvres, or the diffusers may be formed by pressing or moulding circumferentially extending louvres or openings into a disc-shaped region of the structure.
  • the cowling 15 may be located in the desired position relative to the fan by suspending the cowling from the ceiling 13 by way of hangers 25. Such arrangement is shown in Figure 4 of the drawings.
  • FIG. 5 of the drawings an arrangement of the type which is similar to that shown in Figure 1 is modified in a manner such that electric lamp units 26 are mounted in spaced-apart relationship to and around the cowling 15.
  • a filter device of the type which is shown in Figure 5 is particularly appropriate for doctor's surgeries and commercial situations where both air filtering and high levels of lighting are important requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

Un dispositif de filtre monté sur un ventilateur de plafond pour filtrer l'air traversant comprend un support de filtre sous la forme d'un logement (15) qui est dimensionné et formé pour entourer la zone balayée par les pales du ventilateur (12) et qui est disposé pour permettre un écoulement d'air sensiblement libre vers et depuis les pales du ventilateur (12). Le logement (15) est agencé pour être connecté directement à une portion fixe (11 ou 14) du ventilateur ou pour être suspendu au plafond au-dessus du ventilateur. Un filtre à particules (20) est porté par le support (15) de manière à piéger les particules entraînées dans l'air, par exemple les poussières, les aérosols, etc., aspirés par le ventilateur. Le dispositif de filtre peut comprendre des diffuseurs sous la forme de lamelles parallèles orientées en biais pour dévier l'air traversant le ventilateur, ainsi que des douilles pour des ampoules électriques.
PCT/AU1993/000505 1992-10-02 1993-10-01 Filtre a air pour un ventilateur de plafond WO1994008142A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU51440/93A AU5144093A (en) 1992-10-02 1993-10-01 A ceiling fan air filter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPL508992 1992-10-02
AUPL5089 1992-10-02

Publications (1)

Publication Number Publication Date
WO1994008142A1 true WO1994008142A1 (fr) 1994-04-14

Family

ID=3776455

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1993/000505 WO1994008142A1 (fr) 1992-10-02 1993-10-01 Filtre a air pour un ventilateur de plafond

Country Status (1)

Country Link
WO (1) WO1994008142A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1027129A4 (fr) * 1997-10-17 2001-05-16 Paul Fiacco Dispositif de filtrage d'air
US7717674B2 (en) * 2006-11-06 2010-05-18 Hunter Fan Company Ceiling fan
KR101578043B1 (ko) * 2015-06-10 2015-12-16 구기승 오염 공기 살균 및 정화 부재가 구비된 천정 부착 복합 기능 선풍기
JP2018179007A (ja) * 2018-08-09 2018-11-15 シャープ株式会社 送風機
JP2020073806A (ja) * 2020-02-13 2020-05-14 シャープ株式会社 送風機
JP2021008884A (ja) * 2020-10-27 2021-01-28 シャープ株式会社 送風機
USD921175S1 (en) 2016-08-19 2021-06-01 Wallner Expac, Inc. Diffuser
USD921174S1 (en) 2016-08-19 2021-06-01 Wallner Expac, Inc. Diffuser
US11293458B2 (en) 2018-04-23 2022-04-05 Home Depot Product Authority, Llc Air filtration ceiling fan
CN114534915A (zh) * 2022-01-08 2022-05-27 南昌大学 一种带微静电过滤器的吊扇

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH267334A (de) * 1948-10-25 1950-03-31 E Baudenbacher Adrien Luftkonditionierungsvorrichtung.
US2790510A (en) * 1954-04-15 1957-04-30 Joseph G Brabec Air filter for lamps
US4064427A (en) * 1975-08-12 1977-12-20 Hansen Mfg. Co. Of Florida, Inc. Safety guard and light fixture attachment for ceiling fans
US4514197A (en) * 1983-02-15 1985-04-30 Armbruster Joseph M Filter for air circulator
JPS61145396A (ja) * 1984-12-17 1986-07-03 Matsushita Seiko Co Ltd 天井扇風機
US4657485A (en) * 1984-04-19 1987-04-14 Hartwig Richard K Ceiling fan guard
AU6701486A (en) * 1986-01-23 1987-07-30 Community Energy Savers Pty. Ltd. Ceiling fan
US4750863A (en) * 1987-06-11 1988-06-14 G & H Enterprises Fan shroud filter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH267334A (de) * 1948-10-25 1950-03-31 E Baudenbacher Adrien Luftkonditionierungsvorrichtung.
US2790510A (en) * 1954-04-15 1957-04-30 Joseph G Brabec Air filter for lamps
US4064427A (en) * 1975-08-12 1977-12-20 Hansen Mfg. Co. Of Florida, Inc. Safety guard and light fixture attachment for ceiling fans
US4514197A (en) * 1983-02-15 1985-04-30 Armbruster Joseph M Filter for air circulator
US4657485A (en) * 1984-04-19 1987-04-14 Hartwig Richard K Ceiling fan guard
JPS61145396A (ja) * 1984-12-17 1986-07-03 Matsushita Seiko Co Ltd 天井扇風機
AU6701486A (en) * 1986-01-23 1987-07-30 Community Energy Savers Pty. Ltd. Ceiling fan
US4750863A (en) * 1987-06-11 1988-06-14 G & H Enterprises Fan shroud filter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, M-537, page 68; & JP,A,61 145 396 (MATSUSHITA SEIKO CO. LTD.) 3 July 1986. *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1027129A4 (fr) * 1997-10-17 2001-05-16 Paul Fiacco Dispositif de filtrage d'air
JP2001520105A (ja) * 1997-10-17 2001-10-30 フィアッコ、ポール 空気ろ過装置
US6372005B1 (en) 1997-10-17 2002-04-16 Paul Fiacco Air filtering device
US6514304B2 (en) 1997-10-17 2003-02-04 Paul Fiacco Air filtering device with rotatable rings and filtration media
US7717674B2 (en) * 2006-11-06 2010-05-18 Hunter Fan Company Ceiling fan
KR101578043B1 (ko) * 2015-06-10 2015-12-16 구기승 오염 공기 살균 및 정화 부재가 구비된 천정 부착 복합 기능 선풍기
USD921175S1 (en) 2016-08-19 2021-06-01 Wallner Expac, Inc. Diffuser
USD921174S1 (en) 2016-08-19 2021-06-01 Wallner Expac, Inc. Diffuser
US11293458B2 (en) 2018-04-23 2022-04-05 Home Depot Product Authority, Llc Air filtration ceiling fan
US11828301B2 (en) 2018-04-23 2023-11-28 Home Depot Product Authority, Llc Air filtration ceiling fan
JP2018179007A (ja) * 2018-08-09 2018-11-15 シャープ株式会社 送風機
JP2020073806A (ja) * 2020-02-13 2020-05-14 シャープ株式会社 送風機
JP2021008884A (ja) * 2020-10-27 2021-01-28 シャープ株式会社 送風機
CN114534915A (zh) * 2022-01-08 2022-05-27 南昌大学 一种带微静电过滤器的吊扇

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