EP2295817A3 - Blowing fan and blower using the same - Google Patents

Blowing fan and blower using the same Download PDF

Info

Publication number
EP2295817A3
EP2295817A3 EP10174481A EP10174481A EP2295817A3 EP 2295817 A3 EP2295817 A3 EP 2295817A3 EP 10174481 A EP10174481 A EP 10174481A EP 10174481 A EP10174481 A EP 10174481A EP 2295817 A3 EP2295817 A3 EP 2295817A3
Authority
EP
European Patent Office
Prior art keywords
blowing fan
shroud
hub
blower
same
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Withdrawn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
EP10174481A
Other languages
German (de)
French (fr)
Other versions
EP2295817A2 (en
Inventor
Sachie Tsujikawa
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.)
Panasonic Corp
Original Assignee
Panasonic 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
Priority to JP2009210072A priority Critical patent/JP4894900B2/en
Application filed by Panasonic Corp filed Critical Panasonic Corp
Publication of EP2295817A2 publication Critical patent/EP2295817A2/en
Publication of EP2295817A3 publication Critical patent/EP2295817A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/28Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/28Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/288Part of the wheel having an ejecting effect, e.g. being bladeless diffuser
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/28Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30Vanes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00Components
    • F05D2240/20Rotors
    • F05D2240/30Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/304Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade

Abstract

A blowing fan includes a hub to which a rotary shaft of a motor is rigidly mounted, a shroud confronting the hub, and multiple blades placed between the hub and the shroud. A space is formed between a tailing edge of each one of the blades and the shroud. Flowing of air through this space allows reducing an air-speed at the outer most periphery of the blowing fan while the performance of the fan can be maintained. As a result, BPF (Blade Passing Frequency) noises can be lowered. On top of that, this simple construction allows manufacturing the blowing fan at a lower cost.
EP10174481A 2009-09-11 2010-08-30 Blowing fan and blower using the same Withdrawn EP2295817A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009210072A JP4894900B2 (en) 2009-09-11 2009-09-11 Blower fan and blower using the same

Publications (2)

Publication Number Publication Date
EP2295817A2 EP2295817A2 (en) 2011-03-16
EP2295817A3 true EP2295817A3 (en) 2012-03-14

Family

ID=43216151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10174481A Withdrawn EP2295817A3 (en) 2009-09-11 2010-08-30 Blowing fan and blower using the same

Country Status (4)

Country Link
EP (1) EP2295817A3 (en)
JP (1) JP4894900B2 (en)
CN (2) CN201851371U (en)
TW (1) TWI418709B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140131750A (en) * 2013-05-06 2014-11-14 엘지전자 주식회사 Centrifugal Fan
KR101645178B1 (en) 2013-05-10 2016-08-03 엘지전자 주식회사 Centrifugal fan and manufacturing method thereof
US9995311B2 (en) 2013-05-10 2018-06-12 Lg Electronics Inc. Centrifugal fan
JP2016121580A (en) * 2014-12-24 2016-07-07 ダイキン工業株式会社 Centrifugal blower
CN106015090B (en) * 2016-06-27 2019-03-15 珠海格力电器股份有限公司 A kind of centrifugation blade, centrifugal blower and air-conditioning equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8909594U1 (en) * 1989-08-10 1989-10-05 Metronic Electronic Gmbh, 7210 Rottweil, De
JPH04311698A (en) * 1991-04-11 1992-11-04 Matsushita Electric Ind Co Ltd Motor fan
EP1455094A1 (en) * 2003-03-04 2004-09-08 Ziehl-Abegg AG Radial flow impeller
US20050169750A1 (en) * 2004-02-03 2005-08-04 Lg Electronics Inc. Air-blowing apparatus of cleaner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS562498A (en) * 1979-06-18 1981-01-12 Matsushita Electric Ind Co Ltd Electric fan
JPH06108993A (en) * 1992-09-30 1994-04-19 Matsushita Electric Ind Co Ltd Impeller for motor-driven blower
TWM287571U (en) * 2005-09-22 2006-02-11 Delta Electronics Inc Centrifugal fan
JP2007170331A (en) 2005-12-26 2007-07-05 Daikin Ind Ltd Turbofan and indoor unit of air conditioner using it

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8909594U1 (en) * 1989-08-10 1989-10-05 Metronic Electronic Gmbh, 7210 Rottweil, De
JPH04311698A (en) * 1991-04-11 1992-11-04 Matsushita Electric Ind Co Ltd Motor fan
EP1455094A1 (en) * 2003-03-04 2004-09-08 Ziehl-Abegg AG Radial flow impeller
US20050169750A1 (en) * 2004-02-03 2005-08-04 Lg Electronics Inc. Air-blowing apparatus of cleaner

Also Published As

Publication number Publication date
TWI418709B (en) 2013-12-11
TW201109532A (en) 2011-03-16
CN102022349A (en) 2011-04-20
JP4894900B2 (en) 2012-03-14
JP2011058442A (en) 2011-03-24
CN201851371U (en) 2011-06-01
EP2295817A2 (en) 2011-03-16

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RIC1 Classification (correction)

Ipc: F04D 29/28 20060101AFI20120208BHEP

Ipc: F04D 29/30 20060101ALI20120208BHEP

AK Designated contracting states:

Kind code of ref document: A3

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17P Request for examination filed

Effective date: 20120913

INTG Announcement of intention to grant

Effective date: 20140509

18D Deemed to be withdrawn

Effective date: 20140920