EP1980755A3 - Noise reducing structure in fan device - Google Patents

Noise reducing structure in fan device Download PDF

Info

Publication number
EP1980755A3
EP1980755A3 EP08152389A EP08152389A EP1980755A3 EP 1980755 A3 EP1980755 A3 EP 1980755A3 EP 08152389 A EP08152389 A EP 08152389A EP 08152389 A EP08152389 A EP 08152389A EP 1980755 A3 EP1980755 A3 EP 1980755A3
Authority
EP
European Patent Office
Prior art keywords
fan device
reducing structure
noise reducing
fan
shroud
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Withdrawn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
EP08152389A
Other languages
German (de)
French (fr)
Other versions
EP1980755A2 (en
Inventor
Kazuki c/o Kobe Corporate Research Laboratories Tsugihashi
Ichiro c/o Kobe Corporate Research Laboratories Yamagiwa
Toshimitsu c/o Kobe Corporate Research Laboratories Tanaka
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Publication of EP1980755A2 publication Critical patent/EP1980755A2/en
Publication of EP1980755A3 publication Critical patent/EP1980755A3/en
Withdrawn legal-status Critical Current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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • 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
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/665—Sound attenuation by means of resonance chambers or interference

Abstract

A noise reducing structure in a fan device is provided which can reduce noise generated in the interior of a housing of the fan device without deteriorating the air feed capacity of the fan device. In the noise reducing structure in a fan device, a fan (200) is rotated by a drive motor (600) to create an air flow. The air flow is introduced and uniformed by a bell-mouth-like shroud (400). Sound absorbing structures (310, 320, 330) are formed on a surface intersecting the outer periphery surface of the shroud (400).
EP08152389A 2007-04-09 2008-03-06 Noise reducing structure in fan device Withdrawn EP1980755A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007102082A JP2008255969A (en) 2007-04-09 2007-04-09 Noise reducing structure of fan device

Publications (2)

Publication Number Publication Date
EP1980755A2 EP1980755A2 (en) 2008-10-15
EP1980755A3 true EP1980755A3 (en) 2012-05-16

Family

ID=39380914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08152389A Withdrawn EP1980755A3 (en) 2007-04-09 2008-03-06 Noise reducing structure in fan device

Country Status (3)

Country Link
EP (1) EP1980755A3 (en)
JP (1) JP2008255969A (en)
CN (1) CN101285488B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104791304A (en) * 2014-01-22 2015-07-22 罗伯特·博世有限公司 Cooling module

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5558449B2 (en) * 2011-10-03 2014-07-23 三菱電機株式会社 Blower, outdoor unit and refrigeration cycle apparatus
CN103089704B (en) * 2011-10-31 2017-03-01 Ge医疗系统环球技术有限公司 Fan component and the electrical equipment with this fan component
US8770340B2 (en) 2011-11-16 2014-07-08 Huntair, Inc. Sound-absorptive panel for an air handling system
JP6240436B2 (en) 2013-08-29 2017-11-29 株式会社スギヨ Manufacturing method of sardine-like fish paste products
US20170089360A1 (en) * 2014-06-18 2017-03-30 Hewlett- Packard Development Company, L.P. Fan Including an Acoustic Absorption Member in Contact and Movable with Vanes
CN105570193B (en) * 2014-11-24 2017-05-10 徐工集团工程机械股份有限公司 Radiator wind scooper structure for engineering machine
JP6658037B2 (en) 2016-02-08 2020-03-04 日本電産株式会社 Fan motor
CN106123153B (en) * 2016-08-17 2022-04-12 广东美的制冷设备有限公司 Air condensing units and air conditioner
CN108240647B (en) * 2017-10-31 2023-11-17 宁波方太厨具有限公司 Variable-frequency noise-reduction air outlet cover of range hood
CN108035791A (en) * 2017-11-27 2018-05-15 三汽车制造有限公司 A kind of wind scooper, engine and power-equipment
CN110274276B (en) * 2018-03-13 2024-02-20 宁波方太厨具有限公司 Noise-reducing type range hood
CN108488103A (en) * 2018-06-26 2018-09-04 杭州老板电器股份有限公司 Denoising device, wind turbine and kitchen ventilator
EP3907407A1 (en) * 2020-05-06 2021-11-10 Carrier Corporation Fan coil unit with silencer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330624A (en) * 1997-10-23 1999-04-28 Wang Samw Hong Jen Fan device with noise reduction
JP2001003750A (en) * 1999-04-19 2001-01-09 Komatsu Ltd Noise reducing mechanism for fan device
US6575695B1 (en) * 1999-11-30 2003-06-10 Maruyama Mfg. Co., Inc. Centrifugal blower and power working machine
JP2005018042A (en) * 2003-05-30 2005-01-20 Kobe Steel Ltd Porous sound insulating structure body
US20050034918A1 (en) * 2003-08-15 2005-02-17 Siemens Westinghouse Power Corporation High frequency dynamics resonator assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769998A (en) * 1980-10-20 1982-04-30 Matsushita Electric Ind Co Ltd Electromagnetic type pickup cartridge
JPS62142896A (en) * 1985-12-18 1987-06-26 Matsushita Seiko Co Ltd Centrifugal blower
JPH03229998A (en) * 1990-02-05 1991-10-11 Matsushita Electric Ind Co Ltd Oblique flow air blower
JP3487238B2 (en) 1999-10-12 2004-01-13 ダイキン工業株式会社 Bell mouth structure of blower
JP2003050586A (en) * 2000-09-29 2003-02-21 Kobe Steel Ltd Porous soundproof structure and method of manufacturing the same
JP4131535B2 (en) 2002-05-27 2008-08-13 株式会社前川製作所 Noise reduction device for compressor unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330624A (en) * 1997-10-23 1999-04-28 Wang Samw Hong Jen Fan device with noise reduction
JP2001003750A (en) * 1999-04-19 2001-01-09 Komatsu Ltd Noise reducing mechanism for fan device
US6575695B1 (en) * 1999-11-30 2003-06-10 Maruyama Mfg. Co., Inc. Centrifugal blower and power working machine
JP2005018042A (en) * 2003-05-30 2005-01-20 Kobe Steel Ltd Porous sound insulating structure body
US20050034918A1 (en) * 2003-08-15 2005-02-17 Siemens Westinghouse Power Corporation High frequency dynamics resonator assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104791304A (en) * 2014-01-22 2015-07-22 罗伯特·博世有限公司 Cooling module
CN104791304B (en) * 2014-01-22 2020-09-11 罗伯特·博世有限公司 Cooling module

Also Published As

Publication number Publication date
CN101285488A (en) 2008-10-15
CN101285488B (en) 2012-05-30
EP1980755A2 (en) 2008-10-15
JP2008255969A (en) 2008-10-23

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Inventor name: TANAKA, TOSHIMITSU

Inventor name: YAMAGIWA, ICHIRO

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