WO2012134983A2 - Grille circulaire destinée à une unité de ventilateur - Google Patents

Grille circulaire destinée à une unité de ventilateur Download PDF

Info

Publication number
WO2012134983A2
WO2012134983A2 PCT/US2012/030253 US2012030253W WO2012134983A2 WO 2012134983 A2 WO2012134983 A2 WO 2012134983A2 US 2012030253 W US2012030253 W US 2012030253W WO 2012134983 A2 WO2012134983 A2 WO 2012134983A2
Authority
WO
WIPO (PCT)
Prior art keywords
circular grill
rib
grill
circular
airflow
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.)
Ceased
Application number
PCT/US2012/030253
Other languages
English (en)
Other versions
WO2012134983A3 (fr
Inventor
Glen W. Ediger
Gary P. Israel
Chase HOPPOCK
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.)
Vornado Air LLC
Original Assignee
Vornado Air LLC
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 Vornado Air LLC filed Critical Vornado Air LLC
Priority to US14/007,581 priority Critical patent/US20140248145A1/en
Publication of WO2012134983A2 publication Critical patent/WO2012134983A2/fr
Publication of WO2012134983A3 publication Critical patent/WO2012134983A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • 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
    • 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
    • F24F13/082—Grilles, registers or guards

Definitions

  • Air circulators are configured to distribute air throughout an entire room.
  • the present disclosure relates to a grill for an air circulator.
  • the grill is configured to divert airflow from an airflow source.
  • the air circulator includes a center hub with a plurality of arcuate ribs coupled to and extending outwardly from the center hub.
  • the arcuate ribs extend outwardly to an outer perimeter of the circular grill.
  • Each rib is comprised of a first portion and a second portion that form a first angle greater than 0° and less than 90° and an aspect ratio between 4: 1 and 1 :4.
  • FIG. 1 is a perspective view of a circular grill.
  • FIG. 2 is a side, cross-sectional view of a rib coupled to the circular grill.
  • FIG. 3 is a perspective view of the circular grill of FIG. 1 A coupled to an air circulator.
  • Air circulators are designed to circulate air uniformly to a specific area, such as a room or shop. Grills are usually coupled to these air circulators to direct airflow and to prevent user's from coming into direct contact with the air circulator's blades. However, noise levels and airflow restrictions associated with air circulators in the prior art may be unreasonable with consumers. [0011] Accordingly, a circular grill is described that may be implemented with an air circulator. The circular grill may improve the air flow (CFM), the distance the air travels, and the noise level and quality of noise associated with air circulator units. In an implementation, the grill is configured to divert airfiow from an airflow source.
  • CFM air flow
  • the distance the air travels the distance the air travels
  • the noise level and quality of noise associated with air circulator units In an implementation, the grill is configured to divert airfiow from an airflow source.
  • the grill is comprised of a center hub with multiple arcuate ribs extending outwardly to the grill's outer perimeter from the center hub.
  • Each rib is comprised of a first portion and a second portion that form a first angle greater than 0° and less than 90° and an aspect ratio between 4: 1 and 1 :4.
  • the first angle may be between about 30° and 80°. In some such embodiments, the first angle may be between about 32° and 77°.
  • the circular grill is configured to be coupled to an airflow circulator unit.
  • FIGS. 1 and 2 illustrate an example of a circular grill 100 configured for coupling to an airflow circulator unit 200.
  • the circular grill 100 includes a center hub 102, an outer perimeter 104, and multiple arcuate stators shown as ribs 106.
  • the multiple arcuate ribs 106 are coupled to and extend outwardly from the center hub 102.
  • Each rib 106 is comprised of a first portion 108 and a second portion 110, which form a first angle greater than 0° and less than 90°. In other embodiments, the first angle may range between about 25° and 50°.
  • the first angle is defined as the supplementary angle theta ( ⁇ ) formed by the intersection of first axis A-A and secoond axis B-B (as depicted in FIG. 2).
  • the angle ⁇ may vary along the length of rib 106.
  • Each rib 106 may have a crossectional aspect ratio between 4:1 and 1 :4.
  • the aspect ratio is defined as the ratio of the width of the first portion to the ratio of the width of the second portion.
  • the width of the first portion may be two inches (2") and the width of the second portion may be 1 inch (1"). In the aforementioned example, the aspect ratio would be 2: 1.
  • FIG. 2 a cross-section of a stator or rib 106 is depicted.
  • Each rib 106 may function as a flow straigthener that reduces turbulence due to the dimensions, the angle, and the material of each rib 106.
  • a reduction in turbulence may increase airflow distance and airflow (CFM), as well as decrease the decibel level produced by the air circulator 200 during operation.
  • the first portion 108 may have a width of about 0.1 inch and a length of about 0.4 inch and the second portion 110 may have a width of about 0.1 to 0.3 inch and a length of about 0.2 inch.
  • the first portion 108 includes a leading edge 112 that is defined as the edge that makes first contact with the airflow produced by the air circulator 200.
  • the second portion 110 includes a trailing edge 114 that is defined as the edge where at least a portion of the airflow separated by the leading edge 112 rejoins.
  • the leading edge 112 may be curved, and the trailing edge 114 may be pointed. It is contemplated that the leading edge 112 and the trailing edge 114 may take other general shapes (e.g. pointed, square, etc.).
  • the first portion 108 has a first chord length 116, and the second portion 110 has a second chord length 118.
  • the first chord length 116 is defined as the distance measured from the leading edge 112 to the first portion's 108 edge 120 that forms the first angle with the second portion 110.
  • the second chord length 118 is defined as the distance measured from the second portion's edge 122 that forms the first angle with the first portion 108 to the trailing edge 114.
  • the specific dimensions and angle formed by a first portion 108 and a second portion 110 of each rib 106 may reduce the turbulence asso- ciated with the airflow produced by an air circulator 200.
  • the air circulator 200 includes a base member 202, a hub (not shown), a plurality of blades (not shown) coupled to the hub, and a motor (not shown) operatively coupled to the plurality of blades.
  • the air circulator 200 may include air circulators known in the art.
  • the air circulator may be a 530 VORNADO air circulator 200.
  • the circular grill 100 may be manufactured from Acrylonitrile Butadiene Styrene (ABS), Polypropylene (PP), High Impact Polystyrene (HIPS), or the like. The manufacturing process may be injection molding or a similar process. Furthermore, the diameter of a particular circular grill 100 may be about 9.41", the number of ribs 106 is nineteen (19), the distance from a blade 204 to the circular grill 100 is fifteen percent (15%), and the first angle is thirty-three degrees (33°). The number of blades should not share a common factor with the number of ribs 106 due to potential disruptions or resonance.
  • ABS Acrylonitrile Butadiene Styrene
  • PP Polypropylene
  • HIPS High Impact Polystyrene
  • the diameter of a particular circular grill 100 may be about 9.41"
  • the number of ribs 106 is nineteen (19)
  • the distance from a blade 204 to the circular grill 100 is fifteen percent (15%)
  • the first angle is thirty-three degrees (33°).
  • FIG. 3 illustrates a two-dimensional modeling of airflow over the plurality of ribs 106 according to the aforementioned dimensions and angles.
  • FIG. 3 depicts a turbulent intensity range of 4.5% through 40% with a peak of 60%.
  • the plurality of ribs 104 of the present disclosure reduces the turbulent intensity range of the airflow compared with the plurality of ribs previously known in the prior art.
  • first and second are used herein to describe various features, elements, regions, layers and/or sections, these features, elements, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one feature, element, region, layer or section from another feature, element, region, layer or section. Thus, a first feature, element, region, layer or section discussed below could be termed a second feature, element, region, layer or section, and similarly, a second without departing from the teachings of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention a trait à une grille qui est destinée à un ventilateur. La grille est configurée de manière à dévier l'écoulement d'air provenant d'une source d'écoulement d'air. Le ventilateur inclut un moyeu central qui est doté d'une pluralité de nervures arquées qui sont couplées au moyeu central et qui s'étendent vers l'extérieur à partir dudit moyeu central. Les nervures arquées s'étendent vers l'extérieur vers un périmètre extérieur de la grille circulaire.
PCT/US2012/030253 2011-03-25 2012-03-23 Grille circulaire destinée à une unité de ventilateur Ceased WO2012134983A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/007,581 US20140248145A1 (en) 2011-03-25 2012-03-23 Circular grill for an air circulator unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161467754P 2011-03-25 2011-03-25
US61/467,754 2011-03-25

Publications (2)

Publication Number Publication Date
WO2012134983A2 true WO2012134983A2 (fr) 2012-10-04
WO2012134983A3 WO2012134983A3 (fr) 2012-11-22

Family

ID=46932246

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/030253 Ceased WO2012134983A2 (fr) 2011-03-25 2012-03-23 Grille circulaire destinée à une unité de ventilateur

Country Status (2)

Country Link
US (1) US20140248145A1 (fr)
WO (1) WO2012134983A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800010748A1 (it) * 2018-11-30 2020-05-30 Orlandi Thermal Systems Europe S R L Apparato di convogliamento di un fluido
USD921883S1 (en) 2018-07-25 2021-06-08 Vornado Air, Llc Fan head

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105465049A (zh) * 2014-09-09 2016-04-06 苏州金莱克精密机械有限公司 吹风机
CN207122442U (zh) 2017-08-18 2018-03-20 开利公司 风扇罩壳及具有其的空调机组

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100994A (en) * 1936-02-06 1937-11-30 Casco Products Corp Fan guard
US2463337A (en) * 1944-12-09 1949-03-01 Weber Max Air circulator
US3446429A (en) * 1966-12-08 1969-05-27 Tokyo Shibaura Electric Co Readily disassembled electric fan
US3963382A (en) * 1975-01-31 1976-06-15 Noel Thomas Patton Portable air circulating fan
US4548548A (en) * 1984-05-23 1985-10-22 Airflow Research And Manufacturing Corp. Fan and housing
USD309944S (en) * 1988-07-05 1990-08-14 Holmes Products Corp. Electric fan
US4927324A (en) * 1989-01-09 1990-05-22 Vornado Air Circulation Systems, Inc. Ducted fan
US5118252A (en) * 1990-05-24 1992-06-02 The W. B. Marvin Manufacturing Company Intake grill for electric fan assembly
US5352094A (en) * 1992-01-16 1994-10-04 Duracraft Corporation Grill assembly for portable fan
US5073088A (en) * 1991-01-25 1991-12-17 Duracraft Corporation Grill assembly for portable fan
USD336512S (en) * 1992-02-10 1993-06-15 Holmes Products Corp. Combined fan base and fan cage unit
US5342175A (en) * 1993-03-25 1994-08-30 Patton Electric Company, Inc. Grill
US5429481A (en) * 1994-08-24 1995-07-04 Liu; Su-Liang Angle-adjustable joint for electric fans
US5498130A (en) * 1994-10-18 1996-03-12 Itt Automotive Electrical Systems Inc. Cooling fan mounting system
JPH08211820A (ja) * 1994-10-31 1996-08-20 Xerox Corp 低ノイズ・フィンガー・ガード
US5577888A (en) * 1995-06-23 1996-11-26 Siemens Electric Limited High efficiency, low-noise, axial fan assembly
US6045330A (en) * 1997-04-25 2000-04-04 Williams; Robert E. Retrofitable fan shroud
US6059541A (en) * 1998-03-10 2000-05-09 The Toro Company Air inlet cover for portable blower/vacuum
USD423663S (en) * 1999-04-01 2000-04-25 Holmes Products Corporation Fan housing
USD427674S (en) * 1999-08-05 2000-07-04 Lakewood Engineering And Manufacturing Co. Front face of a grill for an electric fan
KR100408781B1 (ko) * 1999-08-09 2003-12-06 다이킨 고교 가부시키가이샤 송풍유닛의 팬 가드 및 공기조화장치
USD457618S1 (en) * 2000-02-08 2002-05-21 Atico International Usa, Inc. Fan body
USD447552S1 (en) * 2000-02-08 2001-09-04 Atico International Usa,Inc. Portable fan
JP3982181B2 (ja) * 2001-01-29 2007-09-26 ダイキン工業株式会社 送風ユニットのファンガード
JP2004156884A (ja) * 2002-11-08 2004-06-03 Daikin Ind Ltd 送風ユニットのファンガード
AU303608S (en) * 2004-11-04 2005-10-26 Briggs & Stratton Corp Rewind cover
JP4469736B2 (ja) * 2005-02-07 2010-05-26 山洋電気株式会社 軸流送風機
WO2006119564A1 (fr) * 2005-05-12 2006-11-16 Advantec Australasia Pty. Limited Aeration et grilles
US7654793B2 (en) * 2005-05-13 2010-02-02 Valeo Electrical Systems, Inc. Fan shroud supports which increase resonant frequency
USD621026S1 (en) * 2009-07-27 2010-08-03 Camair LLC Set of fan parts
USD673256S1 (en) * 2011-08-24 2012-12-25 Lasko Holdings, Inc. Body for a portable fan
USD686308S1 (en) * 2012-03-16 2013-07-16 Gree Electric Appliances (Zhongshan) Small Home Appliances Manufacturing Ltd. Desk box fan
USD692996S1 (en) * 2012-06-11 2013-11-05 Kaz Usa, Inc. Axial flow fan
USD691256S1 (en) * 2013-07-10 2013-10-08 Jye Liang PAN Fan housing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD921883S1 (en) 2018-07-25 2021-06-08 Vornado Air, Llc Fan head
IT201800010748A1 (it) * 2018-11-30 2020-05-30 Orlandi Thermal Systems Europe S R L Apparato di convogliamento di un fluido

Also Published As

Publication number Publication date
WO2012134983A3 (fr) 2012-11-22
US20140248145A1 (en) 2014-09-04

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