EP2757268A3 - Scirocco fan and air-conditioning apparatus - Google Patents

Scirocco fan and air-conditioning apparatus Download PDF

Info

Publication number
EP2757268A3
EP2757268A3 EP14164771.9A EP14164771A EP2757268A3 EP 2757268 A3 EP2757268 A3 EP 2757268A3 EP 14164771 A EP14164771 A EP 14164771A EP 2757268 A3 EP2757268 A3 EP 2757268A3
Authority
EP
European Patent Office
Prior art keywords
scroll
air
fan
conditioning apparatus
sirocco fan
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.)
Granted
Application number
EP14164771.9A
Other languages
German (de)
French (fr)
Other versions
EP2757268B1 (en
EP2757268A2 (en
Inventor
Hiroki Okazawa
Ryouji Abe
Hiroshi Tsutsumi
Takahiro Yamatani
Kazunobu Nishimiya
Yukihiko Kawanori
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39830703&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2757268(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP2757268A2 publication Critical patent/EP2757268A2/en
Publication of EP2757268A3 publication Critical patent/EP2757268A3/en
Application granted granted Critical
Publication of EP2757268B1 publication Critical patent/EP2757268B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/422—Discharge tongues
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
    • F04D29/602—Mounting in cavities
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • 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
    • 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
    • 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
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • 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
    • F24F1/0057—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
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • 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
    • F24F13/24—Means for preventing or suppressing noise
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

A sirocco fan capable of reducing a noise value and a number of revolutions when obtaining a predetermined airblowing amount, and an air-conditioning apparatus provided with the sirocco fan are provided.
In the sirocco fan provided with a scroll 6, a fan body, which is rotatably disposed in the scroll 6 and includes a large number of blades arranged in a cylindrical manner, and a motor for rotationally driving the fan body, the scroll 6 is provided with two straight line portions 12 and 13 being approximately in parallel with each other on a whorl-like outer shape thereof, and a rotation shaft of the motor is positioned nearer to the straight line portion 12 situated nearer a tongue portion 8 of the scroll.
EP14164771.9A 2007-03-27 2008-03-25 Scirocco fan and air-conditioning apparatus Active EP2757268B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007081325A JP4906555B2 (en) 2007-03-27 2007-03-27 Sirocco fan and air conditioner
EP08722743.5A EP2128451B1 (en) 2007-03-27 2008-03-25 Sirocco fan and air conditioner
PCT/JP2008/055477 WO2008123208A1 (en) 2007-03-27 2008-03-25 Sirocco fan and air conditioner

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP08722743.5A Division EP2128451B1 (en) 2007-03-27 2008-03-25 Sirocco fan and air conditioner
EP08722743.5A Division-Into EP2128451B1 (en) 2007-03-27 2008-03-25 Sirocco fan and air conditioner

Publications (3)

Publication Number Publication Date
EP2757268A2 EP2757268A2 (en) 2014-07-23
EP2757268A3 true EP2757268A3 (en) 2016-11-16
EP2757268B1 EP2757268B1 (en) 2019-08-07

Family

ID=39830703

Family Applications (3)

Application Number Title Priority Date Filing Date
EP14164774.3A Active EP2757269B1 (en) 2007-03-27 2008-03-25 Scirocco fan and air-conditioning apparatus
EP08722743.5A Active EP2128451B1 (en) 2007-03-27 2008-03-25 Sirocco fan and air conditioner
EP14164771.9A Active EP2757268B1 (en) 2007-03-27 2008-03-25 Scirocco fan and air-conditioning apparatus

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP14164774.3A Active EP2757269B1 (en) 2007-03-27 2008-03-25 Scirocco fan and air-conditioning apparatus
EP08722743.5A Active EP2128451B1 (en) 2007-03-27 2008-03-25 Sirocco fan and air conditioner

Country Status (9)

Country Link
EP (3) EP2757269B1 (en)
JP (1) JP4906555B2 (en)
KR (1) KR101179805B1 (en)
CN (1) CN101595310B (en)
AU (1) AU2008236109C1 (en)
ES (3) ES2744990T3 (en)
HK (1) HK1135160A1 (en)
TW (1) TW200916663A (en)
WO (1) WO2008123208A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102865248B (en) * 2011-07-06 2015-05-13 珠海格力电器股份有限公司 Air conditioner volute and air conditioner provided with same
KR101698788B1 (en) * 2011-10-17 2017-01-23 엘지전자 주식회사 Sirocco fan and Air condtioner having the same
US9039363B2 (en) * 2012-06-22 2015-05-26 Trane International Inc. Blower housing
JP6425325B2 (en) * 2012-12-26 2018-11-21 新晃工業株式会社 Guide plate of plug fan in air conditioner
GB2551281A (en) * 2015-03-02 2017-12-13 Mitsubishi Electric Corp Sirocco fan and indoor unit of air conditioner using this sirocco fan
CN107477677B (en) * 2017-08-25 2023-06-06 重庆凌达压缩机有限公司 Air conditioner indoor unit and air conditioner
WO2019082392A1 (en) * 2017-10-27 2019-05-02 三菱電機株式会社 Centrifugal blower, air blower device, air conditioning device, and refrigeration cycle device
EP3705729B1 (en) 2017-10-31 2024-02-21 Mitsubishi Electric Corporation Centrifugal blower, blowing device, air conditioner, and refrigeration cycle device
CN107832261B (en) * 2017-11-02 2020-09-29 华东交通大学 Wavelet transform-based non-stationary exhaust noise signal order quantitative extraction method
EP3530956B1 (en) 2018-02-26 2021-09-22 Honeywell Technologies Sarl Impeller for a radial fan and gas burner appliance
EP3798452A4 (en) * 2018-05-21 2021-05-12 Mitsubishi Electric Corporation Centrifugal air blower, air blowing device, air conditioning device, and refrigeration cycle device
WO2020129179A1 (en) * 2018-12-19 2020-06-25 三菱電機株式会社 Centrifugal blower, blowing device, air conditioner, and refrigeration cycle device
KR20210011699A (en) 2019-07-23 2021-02-02 삼성전자주식회사 Clothes care apparatus
WO2022113279A1 (en) * 2020-11-27 2022-06-02 三菱電機株式会社 Air-conditioning device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449271A (en) * 1994-12-27 1995-09-12 Carrier Corporation Transverse fan with randomly varying I-shaped tongue
JPH11324992A (en) * 1998-05-06 1999-11-26 Matsushita Seiko Co Ltd Multi-blade blower
US20050207887A1 (en) * 2003-03-26 2005-09-22 Nidec Corporation Centrifugal Fan
JP2006138268A (en) * 2004-11-12 2006-06-01 Fujitsu General Ltd Centrifugal fan device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846040A (en) * 1972-06-16 1974-11-05 D Dennis Blower housing
JPS60153900A (en) * 1984-01-21 1985-08-13 山野　陸三 Dehydration and drying apparatus for washed article
JPS6480698A (en) * 1987-09-24 1989-03-27 Tokyo Gas Co Ltd Automatic supply and recovery device for pipe
JPH0341117Y2 (en) * 1987-11-19 1991-08-29
JP3700217B2 (en) 1995-10-31 2005-09-28 株式会社デンソー Centrifugal blower
JPH109198A (en) * 1996-06-26 1998-01-13 Matsushita Seiko Co Ltd Installing and supporting method for fan motor
JP3988302B2 (en) * 1999-02-17 2007-10-10 松下電器産業株式会社 Multi-blade fan scroll casing
KR100337287B1 (en) * 1999-07-28 2002-05-17 윤종용 centrifugal fan
KR100591335B1 (en) * 2004-06-16 2006-06-19 엘지전자 주식회사 Centrifugal fan
JP2006233835A (en) * 2005-02-24 2006-09-07 Matsushita Electric Ind Co Ltd Blower

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5449271A (en) * 1994-12-27 1995-09-12 Carrier Corporation Transverse fan with randomly varying I-shaped tongue
JPH11324992A (en) * 1998-05-06 1999-11-26 Matsushita Seiko Co Ltd Multi-blade blower
US20050207887A1 (en) * 2003-03-26 2005-09-22 Nidec Corporation Centrifugal Fan
JP2006138268A (en) * 2004-11-12 2006-06-01 Fujitsu General Ltd Centrifugal fan device

Also Published As

Publication number Publication date
HK1135160A1 (en) 2010-05-28
EP2757268B1 (en) 2019-08-07
EP2128451A1 (en) 2009-12-02
AU2008236109B2 (en) 2011-01-27
CN101595310B (en) 2013-09-18
KR20090088440A (en) 2009-08-19
ES2749113T3 (en) 2020-03-19
TW200916663A (en) 2009-04-16
EP2757268A2 (en) 2014-07-23
EP2757269A2 (en) 2014-07-23
EP2757269A3 (en) 2016-11-16
KR101179805B1 (en) 2012-09-04
EP2128451A4 (en) 2014-01-15
EP2757269B1 (en) 2019-09-04
WO2008123208A1 (en) 2008-10-16
EP2128451B1 (en) 2017-04-19
CN101595310A (en) 2009-12-02
ES2625932T3 (en) 2017-07-21
AU2008236109C1 (en) 2011-10-13
JP2008240612A (en) 2008-10-09
ES2744990T3 (en) 2020-02-27
JP4906555B2 (en) 2012-03-28
TWI352780B (en) 2011-11-21
AU2008236109A1 (en) 2008-10-16

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