US20050044654A1 - Silencer for vacuum cleaner - Google Patents

Silencer for vacuum cleaner Download PDF

Info

Publication number
US20050044654A1
US20050044654A1 US10/726,063 US72606303A US2005044654A1 US 20050044654 A1 US20050044654 A1 US 20050044654A1 US 72606303 A US72606303 A US 72606303A US 2005044654 A1 US2005044654 A1 US 2005044654A1
Authority
US
United States
Prior art keywords
vacuum cleaner
silencer
silencing
exhaust channel
silencing board
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.)
Abandoned
Application number
US10/726,063
Inventor
Zugen Ni
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.)
Suzhou Kingclean Floorcare Co Ltd
Original Assignee
Suzhou Kingclean Floorcare Co 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 Suzhou Kingclean Floorcare Co Ltd filed Critical Suzhou Kingclean Floorcare Co Ltd
Assigned to SUZHOU KINGCLEAN FLOORCARE CO., LTD. reassignment SUZHOU KINGCLEAN FLOORCARE CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NI, ZUGEN
Publication of US20050044654A1 publication Critical patent/US20050044654A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping

Definitions

  • the invention relates to a silencer for a vacuum cleaner.
  • the noise is reduced by means of increasing the tortuosity of the airflow channel, i.e. by using labyrinthic airflow channels, to dissipate sound energy and by means of disposing porous sound-absorbing materials at the turning corners of the airflow channel to absorb sound energy.
  • Poor noise silencing effect is the main disadvantage of the above-mentioned silencing structures.
  • the object of the invention is to provide a silencer for a vacuum cleaner, which utilizes one or more silencing boards mounted in the exhaust channel to considerably diminish the noise generated by a vacuum cleaner in operation.
  • a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner.
  • a plurality of pores are distributed throughout in the silencing board.
  • a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner.
  • a plurality of pores are distributed throughout in the silencing board.
  • the silencing board is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel.
  • a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner.
  • a plurality of pores are distributed throughout in each of the at least one silencing board.
  • the silencing board is mounted in an orientation perpendicular to the direction of the airflow through the exhaust channel.
  • the total passage area of the pores is less than half of the cross-sectional area of the exhaust channel.
  • the diameter of each por in the silencing board is less than 6 mm, and wherein the thickness of the silencing board is larger than 0.5 mm.
  • one or more silencing boards are mounted in the exhaust channel, which can effectively diminish the noise generated by a vacuum cleaner in operation.
  • the silencing board(s) of the invention can be directly mounted in the exhaust channel, or be mounted in an expansion chamber connected to the exhaust channel. The latter with the silencing board(s) mounted within an expansion chamber will obtain a better effect of noise reduction.
  • FIG. 1 is a sectional view schematically illustrating a silencer for a vacuum cleaner according to the preferred embodiment of the present invention, wherein:
  • the numeral 1 denotes a silencing board
  • 2 denotes pores
  • 3 denotes an exhaust channel
  • the invention is described bellow with reference to the preferred embodiment of the invention shown in FIG. 1 .
  • a silencer for a vacuum cleaner comprises three silencing boards 1 mounted in the exhaust channel 3 .
  • the silencing boards 1 are generally made of plastic material or metal.
  • a plurality of pores 2 are distributed throughout in each of the silencing boards 1 .
  • Each of the silencing board 1 is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel 3 .
  • the total passage area of the pores 2 in each of the silencing boards 1 is less than half of the cross-sectional area of the exhaust channel 3 .
  • the diameter of each of the pores 2 in the silencing boards 1 are less than 6 mm and the thickness of each of the silencing boards 1 is larger than 0.5 mm.
  • one or more silencing boards 1 are mounted in the exhaust channel 3 , which can effectively reduce the noise generated by a vacuum cleaner in operation.
  • the silencing board(s) 1 of the invention can be directly mounted in the exhaust channel 3 , or be mounted in an expansion chamber connected to the exhaust channel 3 . The latter with the silencing board(s) mounted within an expansion chamber will obtain a better effect of noise reduction.

Abstract

The present invention provides a silencer for a vacuum cleaner. The silencer for the vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner. A plurality of pores are distributed throughout in the silencing board. The silencing board is mounted in an orientation perpendicular to the direction of the airflow through the exhaust channel. The silencer for a vacuum cleaner can considerably diminish the noise generated by the vacuum cleaner in operation.

Description

    FIELD OF THE INVENTION
  • The invention relates to a silencer for a vacuum cleaner.
    • BACKGROUND OF THE INVENTION
  • In conventional exhaust air silencers for vacuum cleaners, the noise is reduced by means of increasing the tortuosity of the airflow channel, i.e. by using labyrinthic airflow channels, to dissipate sound energy and by means of disposing porous sound-absorbing materials at the turning corners of the airflow channel to absorb sound energy. Poor noise silencing effect, however, is the main disadvantage of the above-mentioned silencing structures.
    • SUMMARY OF THE INVENTION
  • The object of the invention is to provide a silencer for a vacuum cleaner, which utilizes one or more silencing boards mounted in the exhaust channel to considerably diminish the noise generated by a vacuum cleaner in operation.
  • In one aspect of the invention, a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner. A plurality of pores are distributed throughout in the silencing board.
  • In a further aspect of the invention, a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner. A plurality of pores are distributed throughout in the silencing board. The silencing board is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel.
  • In a more detailed aspect of the invention, a silencer for a vacuum cleaner comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner. A plurality of pores are distributed throughout in each of the at least one silencing board. The silencing board is mounted in an orientation perpendicular to the direction of the airflow through the exhaust channel. The total passage area of the pores is less than half of the cross-sectional area of the exhaust channel. The diameter of each por in the silencing board is less than 6 mm, and wherein the thickness of the silencing board is larger than 0.5 mm.
  • The invention provides the following advantages:
  • 1. In the invention, one or more silencing boards are mounted in the exhaust channel, which can effectively diminish the noise generated by a vacuum cleaner in operation.
  • 2. The silencing board(s) of the invention can be directly mounted in the exhaust channel, or be mounted in an expansion chamber connected to the exhaust channel. The latter with the silencing board(s) mounted within an expansion chamber will obtain a better effect of noise reduction.
    • BRIEF DESCRIPTION OF THE DRAWINGS:
  • FIG. 1 is a sectional view schematically illustrating a silencer for a vacuum cleaner according to the preferred embodiment of the present invention, wherein:
  • the numeral 1 denotes a silencing board, 2 denotes pores, and 3 denotes an exhaust channel.
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • The invention is described bellow with reference to the preferred embodiment of the invention shown in FIG. 1.
  • As shown in FIG. 1, a silencer for a vacuum cleaner comprises three silencing boards 1 mounted in the exhaust channel 3. The silencing boards 1 are generally made of plastic material or metal. A plurality of pores 2 are distributed throughout in each of the silencing boards 1. Each of the silencing board 1 is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel 3. The total passage area of the pores 2 in each of the silencing boards 1 is less than half of the cross-sectional area of the exhaust channel 3. The diameter of each of the pores 2 in the silencing boards 1 are less than 6 mm and the thickness of each of the silencing boards 1 is larger than 0.5 mm.
  • In the invention, one or more silencing boards 1 are mounted in the exhaust channel 3, which can effectively reduce the noise generated by a vacuum cleaner in operation. The silencing board(s) 1 of the invention can be directly mounted in the exhaust channel 3, or be mounted in an expansion chamber connected to the exhaust channel 3. The latter with the silencing board(s) mounted within an expansion chamber will obtain a better effect of noise reduction.

Claims (5)

1. A silencer for a vacuum cleaner, which comprises at least one silencing board mounted in an exhaust channel of the vacuum cleaner for passage of an exhaust airflow from the vacuum cleaner, with a plurality of pores (2) distributed throughout in the silencing board.
2. A silencer for a vacuum cleaner according to claim 1 wherein the silencing board is mounted in an orientation perpendicular to the direction of the airflow passing through the exhaust channel.
3. A silencer for a vacuum cleaner according to claim 1 wherein the total passage area of the pores is less than half of the cross-sectional area of the exhaust channel.
4. A silencer for a vacuum cleaner according to claim 1 wherein the diameter of each of the pores in the silencing board is less than 6 mm.
5. (Cancelled).
US10/726,063 2003-08-26 2003-12-02 Silencer for vacuum cleaner Abandoned US20050044654A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN03152869.4 2003-08-26
CN03152869.4A CN1256908C (en) 2003-08-26 2003-08-26 Dust-collector noise silencer

Publications (1)

Publication Number Publication Date
US20050044654A1 true US20050044654A1 (en) 2005-03-03

Family

ID=34085340

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/726,063 Abandoned US20050044654A1 (en) 2003-08-26 2003-12-02 Silencer for vacuum cleaner

Country Status (6)

Country Link
US (1) US20050044654A1 (en)
EP (1) EP1510166A3 (en)
JP (1) JP2005066308A (en)
CN (1) CN1256908C (en)
AU (2) AU2003264304B2 (en)
WO (1) WO2005018403A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100219013A1 (en) * 2009-02-27 2010-09-02 Dyson Technology Limited Silencing Arrangement
CN102973207A (en) * 2012-12-21 2013-03-20 大连民族学院 Noise reduction device with function of changing sound transmission track

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100423678C (en) * 2005-11-10 2008-10-08 苏州金莱克家用电器有限公司 Noise absorption unit of dust collector
DE102009054490A1 (en) 2009-12-10 2011-06-16 Poroson Gmbh Vacuum cleaner has suction line, collecting tank and wall that is formed as fabric with warp wires and weft wires or is formed as micro-perforated metal sheet or as expanded metal sheet
DE102011007210A1 (en) * 2011-04-12 2012-10-18 BSH Bosch und Siemens Hausgeräte GmbH Low-noise exhaust air filter arrangement
CN103505149B (en) * 2013-09-24 2016-01-20 苏州市铂恒电器有限公司 Mute dust collector
CN104014204A (en) * 2014-06-18 2014-09-03 黄月媚 Efficient and mute air purifier
CN109520044B (en) * 2018-12-19 2020-11-13 馨科环保科技（上海）有限公司 Sound absorption and noise reduction composite device for air purifier
CN109811702A (en) * 2019-03-26 2019-05-28 北京中科健德环保科技有限公司 A kind of circulating dual-purpose dust removing cleaning lorry of suction
CN112545375B (en) * 2020-11-03 2023-05-23 广东美的白色家电技术创新中心有限公司 Be applied to cleaning device's wind channel subassembly, air-out module and cleaning device

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882993A (en) * 1955-02-16 1959-04-21 Chance Vought Aircraft Inc Silencer
US3380553A (en) * 1966-04-11 1968-04-30 Stephen J. Gibel Exhaust muffler with expansion chambers in inlet cover dome
US3381774A (en) * 1967-07-10 1968-05-07 Mercury Metal Products Inc Muffler with interconnected end bells and telescoped inner pipe
US3882961A (en) * 1974-04-01 1975-05-13 Servicemaster Ind Muffler for vacuum-inducing motor
US4751980A (en) * 1986-10-20 1988-06-21 Devane Harry M Sound attenuation apparatus
US5067584A (en) * 1990-04-25 1991-11-26 Williams William H Low cost replaceable type sound dampening unit for vacuum cleaning machine
US5159738A (en) * 1988-06-06 1992-11-03 Hitachi, Ltd. Vacuum cleaner having silencer mechanism
US5513417A (en) * 1993-07-19 1996-05-07 Samsung Electronics Co., Ltd. Silencing device for vacuum cleaner
US5991969A (en) * 1997-06-30 1999-11-30 Daewoo Electronics Co., Ltd. Noise absorbing device for vacuum cleaner
US6035485A (en) * 1998-03-20 2000-03-14 Emerson Electric Co. Vacuum cleaner muffler/deflector
US6052863A (en) * 1995-10-20 2000-04-25 Iowa State University Research Foundation, Inc. Central vacuum cleaner muffler
US6094774A (en) * 1995-10-10 2000-08-01 Nilfisk A/S Silencer for a suction cleaner
US6932188B2 (en) * 2003-08-26 2005-08-23 Suzhou Kingclean Floorcare Co., Ltd. Silencer for vacuum cleaner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1743578A1 (en) * 1989-05-11 1992-06-30 Московское Машиностроительное Производственное Объединение "Коммунар" Vacuum cleaner
JPH05317208A (en) * 1992-05-22 1993-12-03 Mitsubishi Electric Home Appliance Co Ltd Vacuum cleaner
JP3319646B2 (en) * 1994-03-15 2002-09-03 株式会社東芝 Vacuum cleaner silencer
CN2271874Y (en) * 1995-10-04 1998-01-07 王秋凉 Structure-improved dust collector
CN2285627Y (en) * 1997-01-17 1998-07-08 周万龙 Muffling and waterproofing device for air outlet of suction cleaner
KR100233513B1 (en) * 1997-09-23 1999-12-01 구자홍 Structure of air flow for vacuum cleaner
JP2001280676A (en) * 2000-03-30 2001-10-10 Matsushita Electric Ind Co Ltd Silencer and electric apparatus provided with the same

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882993A (en) * 1955-02-16 1959-04-21 Chance Vought Aircraft Inc Silencer
US3380553A (en) * 1966-04-11 1968-04-30 Stephen J. Gibel Exhaust muffler with expansion chambers in inlet cover dome
US3381774A (en) * 1967-07-10 1968-05-07 Mercury Metal Products Inc Muffler with interconnected end bells and telescoped inner pipe
US3882961A (en) * 1974-04-01 1975-05-13 Servicemaster Ind Muffler for vacuum-inducing motor
US4751980A (en) * 1986-10-20 1988-06-21 Devane Harry M Sound attenuation apparatus
US5159738A (en) * 1988-06-06 1992-11-03 Hitachi, Ltd. Vacuum cleaner having silencer mechanism
US5067584A (en) * 1990-04-25 1991-11-26 Williams William H Low cost replaceable type sound dampening unit for vacuum cleaning machine
US5513417A (en) * 1993-07-19 1996-05-07 Samsung Electronics Co., Ltd. Silencing device for vacuum cleaner
US6094774A (en) * 1995-10-10 2000-08-01 Nilfisk A/S Silencer for a suction cleaner
US6052863A (en) * 1995-10-20 2000-04-25 Iowa State University Research Foundation, Inc. Central vacuum cleaner muffler
US5991969A (en) * 1997-06-30 1999-11-30 Daewoo Electronics Co., Ltd. Noise absorbing device for vacuum cleaner
US6035485A (en) * 1998-03-20 2000-03-14 Emerson Electric Co. Vacuum cleaner muffler/deflector
US6932188B2 (en) * 2003-08-26 2005-08-23 Suzhou Kingclean Floorcare Co., Ltd. Silencer for vacuum cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100219013A1 (en) * 2009-02-27 2010-09-02 Dyson Technology Limited Silencing Arrangement
US7921962B2 (en) * 2009-02-27 2011-04-12 Dyson Technology Limited Silencing arrangement
CN102973207A (en) * 2012-12-21 2013-03-20 大连民族学院 Noise reduction device with function of changing sound transmission track

Also Published As

Publication number Publication date
AU2003264304A1 (en) 2005-03-17
JP2005066308A (en) 2005-03-17
AU2003264304B2 (en) 2005-10-13
EP1510166A2 (en) 2005-03-02
EP1510166A3 (en) 2005-11-09
AU2003289633A1 (en) 2005-03-10
WO2005018403A1 (en) 2005-03-03
CN1256908C (en) 2006-05-24
CN1515220A (en) 2004-07-28

Similar Documents

Publication Publication Date Title
US6932188B2 (en) Silencer for vacuum cleaner
US20050044654A1 (en) Silencer for vacuum cleaner
JP5147508B2 (en) Ventilation blower
GB2411108A (en) Silencing means used in the dust cleaner
JP4982165B2 (en) Silencer
US6861166B2 (en) Fuel cell system
JPH1073304A (en) Blower
JP4496742B2 (en) Duct fan
CN210978955U (en) Static pressure case of tuber pipe silencer
JP3345992B2 (en) Electric vacuum cleaner
KR100698852B1 (en) Environment affinity & Low noise ventilator
JP2011094893A (en) Ventilating device
JP3968065B2 (en) Gas flow path sound reduction device and gas flow path sound reduction equipment
CN210636622U (en) Multilayer sound insulation sound absorption noise elimination damping composite wall structure
JPH03286947A (en) Duct type silensor
JP3418474B2 (en) Blower silencer
JP4229903B2 (en) Ventilation silencer
JP3346689B2 (en) Silencer
JP2003177759A (en) Air permeable sound insulating wall structure
JPH01240799A (en) Silencer for fan
KR20180095475A (en) Splitter and sound attenuator including the same
JPH0783493A (en) Sound muffling chamber
JP2005172273A (en) Ventilation system
JPH03178621A (en) Vacuum cleaner
JPH04319323A (en) Vacuum cleaner

Legal Events

Date Code Title Description
AS Assignment

Owner name: SUZHOU KINGCLEAN FLOORCARE CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NI, ZUGEN;REEL/FRAME:015228/0898

Effective date: 20040330

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION