AU2003264304A1 - Silencer for vacuum cleaner - Google Patents
Silencer for vacuum cleaner Download PDFInfo
- Publication number
- AU2003264304A1 AU2003264304A1 AU2003264304A AU2003264304A AU2003264304A1 AU 2003264304 A1 AU2003264304 A1 AU 2003264304A1 AU 2003264304 A AU2003264304 A AU 2003264304A AU 2003264304 A AU2003264304 A AU 2003264304A AU 2003264304 A1 AU2003264304 A1 AU 2003264304A1
- Authority
- AU
- Australia
- 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.)
- Granted
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Suction Cleaners (AREA)
- Exhaust Silencers (AREA)
- Duct Arrangements (AREA)
Description
JL
I
P/0n 3.1 Regulation 3.2
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Invention Title: Silencer for vacuum cleaner The following statement is a full description of this invention, including the best method of performing it known to us: Silencer for Vacuum Cleaner 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
IA
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 pore 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 I 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.
It will be understood that the term "comprises" or its grammatical variants as used herein is equivalent to the term "includes" and is not to be taken as excluding the presence of other elements or features.
Claims (6)
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 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 I 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 I wherein the diameter of each of the pores in the silencing board is less than 6 mm.
A silencer for a vacuum cleaner according to Claim I wherein the thickness of the silencing board is larger than 0.5 mm.
6. A silence for a vacuum cleaner substantially as hereinbefore described with reference to the accompanying drawing. Suzhou Kingclean Floorcare Co., Ltd. By its Registered Patent Attorneys Freehills Carter Smith Beadle 27 November 2003
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03152869.4A CN1256908C (en) | 2003-08-26 | 2003-08-26 | Dust-collector noise silencer |
| CN03152869.4 | 2003-08-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2003264304A1 true AU2003264304A1 (en) | 2005-03-17 |
| AU2003264304B2 AU2003264304B2 (en) | 2005-10-13 |
Family
ID=34085340
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2003264304A Ceased AU2003264304B2 (en) | 2003-08-26 | 2003-11-27 | Silencer for vacuum cleaner |
| AU2003289633A Abandoned AU2003289633A1 (en) | 2003-08-26 | 2003-12-01 | Silencer of cleaner |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2003289633A Abandoned AU2003289633A1 (en) | 2003-08-26 | 2003-12-01 | Silencer of 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) |
Families Citing this family (10)
| 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 |
| GB2468153A (en) * | 2009-02-27 | 2010-09-01 | Dyson Technology Ltd | A silencing arrangement |
| 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 |
| CN102973207A (en) * | 2012-12-21 | 2013-03-20 | 大连民族学院 | Noise reduction device with function of changing sound transmission track |
| 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 |
Family Cites Families (20)
| 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 |
| JPH01305916A (en) * | 1988-06-06 | 1989-12-11 | Hitachi Ltd | Electric cleaner |
| SU1743578A1 (en) * | 1989-05-11 | 1992-06-30 | Московское Машиностроительное Производственное Объединение "Коммунар" | Vacuum cleaner |
| US5067584A (en) * | 1990-04-25 | 1991-11-26 | Williams William H | Low cost replaceable type sound dampening unit for vacuum cleaning machine |
| JPH05317208A (en) * | 1992-05-22 | 1993-12-03 | Mitsubishi Electric Home Appliance Co Ltd | Vacuum cleaner |
| US5513417A (en) * | 1993-07-19 | 1996-05-07 | Samsung Electronics Co., Ltd. | Silencing device for 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 |
| AU707268B2 (en) * | 1995-10-10 | 1999-07-08 | Nilfisk A/S | A silencer for a suction cleaner |
| US6052863A (en) * | 1995-10-20 | 2000-04-25 | Iowa State University Research Foundation, Inc. | Central vacuum cleaner muffler |
| CN2285627Y (en) * | 1997-01-17 | 1998-07-08 | 周万龙 | Muffling and waterproofing device for air outlet of suction cleaner |
| JPH1132947A (en) * | 1997-06-30 | 1999-02-09 | Daewoo Electron Co Ltd | Noise absorbing device of vacuum cleaner |
| KR100233513B1 (en) * | 1997-09-23 | 1999-12-01 | 구자홍 | Structure of air flow for vacuum cleaner |
| US6035485A (en) * | 1998-03-20 | 2000-03-14 | Emerson Electric Co. | Vacuum cleaner muffler/deflector |
| JP2001280676A (en) * | 2000-03-30 | 2001-10-10 | Matsushita Electric Ind Co Ltd | Silencer and electric apparatus provided with the same |
| CN1279868C (en) * | 2003-08-26 | 2006-10-18 | 苏州金莱克清洁器具有限公司 | Dust-collector noise silencer |
-
2003
- 2003-08-26 CN CN03152869.4A patent/CN1256908C/en not_active Expired - Fee Related
- 2003-11-27 AU AU2003264304A patent/AU2003264304B2/en not_active Ceased
- 2003-12-01 AU AU2003289633A patent/AU2003289633A1/en not_active Abandoned
- 2003-12-01 WO PCT/CN2003/001024 patent/WO2005018403A1/en active Application Filing
- 2003-12-02 US US10/726,063 patent/US20050044654A1/en not_active Abandoned
- 2003-12-04 EP EP03027843A patent/EP1510166A3/en not_active Withdrawn
- 2003-12-08 JP JP2003408850A patent/JP2005066308A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1256908C (en) | 2006-05-24 |
| JP2005066308A (en) | 2005-03-17 |
| EP1510166A2 (en) | 2005-03-02 |
| CN1515220A (en) | 2004-07-28 |
| AU2003289633A1 (en) | 2005-03-10 |
| WO2005018403A1 (en) | 2005-03-03 |
| US20050044654A1 (en) | 2005-03-03 |
| EP1510166A3 (en) | 2005-11-09 |
| AU2003264304B2 (en) | 2005-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |