CN102987986B - Including acoustic filter and the vacuum cleaner of air diffuser - Google Patents

Including acoustic filter and the vacuum cleaner of air diffuser Download PDF

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Publication number
CN102987986B
CN102987986B CN201210291702.0A CN201210291702A CN102987986B CN 102987986 B CN102987986 B CN 102987986B CN 201210291702 A CN201210291702 A CN 201210291702A CN 102987986 B CN102987986 B CN 102987986B
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China
Prior art keywords
section
vacuum cleaner
restricted part
lengthening
cross
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Expired - Fee Related
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CN201210291702.0A
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Chinese (zh)
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CN102987986A (en
Inventor
费比安·大卫
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SEB SA
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SEB SA
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/0081Means for exhaust-air diffusion; Means for sound or vibration damping

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electric Suction Cleaners (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

nullThe present invention relates to a kind of vacuum cleaner,This vacuum cleaner includes electrically ventilating machine,This electrically ventilating machine sucks air stream and towards at least one, it is discharged loop dispatch,This at least one discharge loop includes pipeline,This pipeline includes that the constant air stream that has forming acoustic filter passes through at least one lengthening restricted part (10a in cross section、10b),Follow that to lengthen after restricted part be porous air diffuser (30a、30b),This porous air diffuser (30a、30b) have more than lengthening restricted part (10a、The air stream by cross section 10b) passes through cross section,This vacuum cleaner is characterised by,Discharge loop and include adaption section (20a、20b),This adaption section (20a、20b) it is arranged in lengthening restricted part (10a、10b) with porous air diffuser (30a、Between 30b),And adaption section (20a、20b) include that the air stream dissipated passes through cross section.

Description

Including acoustic filter and the vacuum cleaner of air diffuser
Technical field
The present invention relates generally to vacuum cleaner, be specifically related to the air discharge of vacuum cleaner.
Background technology
It is known to the air vent for the purpose of the dispatch noise to reduce equipment in the prior art, these Air vent includes the restricted part that size is obviously reduced, in order to obtain soundproof effect.
Document US4651380 discloses a kind of vacuum cleaner, and this vacuum cleaner has the noise elimination of constant cross-section Device, followed by is bubbler.The outlet jet of this vacuum cleaner is then to concentrate, and its Speed characteristics and directional characteristic meeting or cause user to feel under the weather, because jet is with big speed And concentrate with little area, or causing ground eddy current, these eddy current can make user want The ground dust sucked disperses in atmosphere.
Document GB2117229 self proposes a kind of vacuum cleaner, and this vacuum cleaner includes that two air go out Mouthful, these two air outlet slits are constituted for the purpose of reducing noise.A kind of constant rectangle cuts The lengthening restricted part in face reduces noise, and has one before outside air outlet slit Plant porous material, in order to hide interiors of products and do not produce noise.This porous material is placed on product Before outside air outlet slit, in the side of the conduit forming restricted part.This solution Major defect is that the outlet jet of product has a kind of air velocity, and this air velocity can make user Feel under the weather or can make to be gathered in ground dust and fly upward in air, because under Chu Kou Trip end a large amount of air-outs under the effect being arranged in the barrier at end of restricted part.It is true that The upstream end thereof of air outlet slit is not passed by large quantity of air, through the air stream of air outlet slit towards downstream End is concentrated around at barrier so that diffuser efficiency is limited.It addition, be parallel in restricted part The size of the air outlet slit that air-flow is arranged makes this parts length, volume big, and damages the tight of vacuum cleaner Gathering property.
Document WO2007045981 proposes a kind of vacuum cleaner, and the discharge tube of this vacuum cleaner is set Count into the power for avoiding increasing motor.To this end, discharge loop includes limiting cervical region, follow closely Thereafter be the part of exhalant, followed by filter, this filter forms air outlet slit.This Plant air outlet slit and do not allow to reduce noise emission, and there is the portion that the dissipates cloth of the function producing laminar flow Put and limiting between neck and outlet filter and requiring big length and big space are given to equipment Interior exhaust system so that size and the volume of this exhaust system are big.
Summary of the invention
It is an object of the invention to overcome the shortcoming of the document of above-mentioned prior art, specifically, first Thering is provided a kind of vacuum cleaner, this vacuum cleaner has little noise level and mild diffusion when it uses, There is no discharging jet that is powerful and that concentrate with little area.
To this end, a first aspect of the present invention relates to a kind of vacuum cleaner, described vacuum cleaner includes electronic logical Blower fan, described electrically ventilating machine sucks air stream and towards at least one, it is discharged loop dispatch, institute State at least one discharge loop include pipeline, described pipeline have formed acoustic filter have constant Air stream lengthens restricted part by least one of cross section, and followed by is porous air diffuser, The air that described porous air diffuser has more than passing through cross section described in described lengthening restricted part circulates Crossing cross section, described vacuum cleaner is characterised by, described discharge loop includes adaption section, described suitable Join and be partially disposed between described lengthening restricted part and described porous air diffuser, and described adaptation Part includes that the air stream dissipated passes through cross section.According to the present invention, have in restricted part and many The vacuum cleaner dissipating adaption section between the bubbler of hole do not discharge user can be made to feel under the weather or The air concentrating pattern that person can kick up a dust.It is true that the effect dissipated be reduce from The speed of the air stream of acoustic filter (restricted part) and increase static pressure so that air stream It is distributed in well on the whole cross section of porous air diffuser, and makes air stream with mild and diffusion Mode is discharged effectively from bubbler.Here " porous " refers to allow to pass air through many The little cavity of Porous materials or any material in little space.
Preferably, described lengthening restricted part has characteristic diameter, and described adaption section has restriction The length of the distance between described lengthening restricted part and described porous air diffuser, and described adaptation The described length of part is less than the described characteristic diameter of described lengthening restricted part.Lengthening limiting unit Point conduit be have circular section cylindrical in the case of, characteristic diameter be lengthen restricted part Diameter, and in the case of the cross section lengthening restricted part is not circle, characteristic diameter can lead to Cross being determined quadruplication by cross section: Dc=4S/Pm divided by moistening (mouill é) girth.Formula In, Dc is characteristic diameter, and S is by cross section, and Pm is wetted perimeter.This according to the present invention is real Execute and provide the probability of compact increasing vacuum cleaner, have simultaneously a kind of good noise reduction and There is no the discharging jet concentrated.
Preferably, the length of described adaption section is less than ten millimeters.The applicant is it has proven convenient that provide This length of good compact allows to obtain air that is a kind of mild and that eliminate the noise and discharges.
Preferably, described vacuum cleaner includes housing, and the inside that described housing limits described vacuum cleaner is empty Between, and described adaption section is the structural member of described housing.The use of this adaption section brings The economy manufactured, because this adaption section has following functions concurrently: it will be for lengthening limiting unit Divide and be connected with porous air diffuser, in order to reducing jet effect, it also serves as the housing of vacuum cleaner Structural member.
Preferably, described porous air diffuser be roughly parallel to described lengthening restricted part by cross section Pass through cross section.This enforcement provides good compactedness, and also allows for limiting noise level, because empty Air-flow is without undergoing the such as unexpected direction change in elbow, and limits turbulent flow so that Air stream in adaption section moves and does not produces additional noise.In other words, air stream has vertically In restricted part by cross section and the flow direction by cross section of porous air diffuser, this avoids Any turbulent flow generation.
Preferably, described porous air diffuser by cross section be described lengthening restricted part by cut At least twice in face.The applicant is it is mentioned that this area ratio allows to significantly reduce from dust suction The directionality of the air stream that device is discharged.
Preferably, described lengthening restricted part offsets relative to described porous air diffuser.Will not damage By lengthening the noise reduction of restricted part generation, there will not be the reduction damaging jet effect, this enforcement is permitted Permitted restricted part and the arranged offset of porous air diffuser, in order to the geometry in accordance with structure limits. The existence of dispersion adaption section allows by making air stream gravity newly point to, and reduces its speed simultaneously and adjusts With all these restrictions.
Preferably, described adaption section is with described lengthening restricted part and described porous air diffuser not Same parts.Construction module is ensured by this enforcement.
Preferably, described porous air diffuser has a porosity, and described porosity is passed through face by air The ratio of the long-pending gross area with material in flat cutting face limits, and described porosity is less than 60%.With this The scope air-out of the value of porosity is mild, thus without producing a lot of loss in head. Combine with the above-mentioned definition being supplied to porous air diffuser, it will be understood that referred to herein as air lead to Cross that area refers to allow air through the cavity of porous air diffuser or space in the flat cutting face of material Air pass through area.
Preferably, described porous air diffuser is a kind of mesh having dimensions less than or being equal to 1 millimeter Braided material.This enforcement is economical and effective.
Accompanying drawing explanation
Following by shown in the drawings and with the also present invention that indefiniteness sample table shows reality by reading Execute the detailed description of mode, understand other features and advantages of the present invention with will be apparent from, at accompanying drawing In:
Fig. 1 illustrates the isometric chart of a part for the vacuum cleaner according to the present invention;
Fig. 2 illustrates the horizontal sectional drawing of the vacuum cleaner of Fig. 1;
Fig. 3 illustrates an alternative of the present invention.
Detailed description of the invention
Fig. 1 illustrates a part for vacuum cleaner.After air collector 40 is collected by being arranged in vacuum cleaner Portion and the air discharged of not shown motor.Then, catcher 40 by air towards two discharges Loop is distributed, and discharges loop for these two and each includes by disappearing that lengthening restricted part 10a and 10b are formed Sound device.The effect of the lengthening restricted part of these constant cross-section is to reduce the air discharged by motor The effect of noise that stream is sent.Then, two restricted parts 10a and 10b are the most respectively by two Individual dispersion adaption section 20a and 20b are connected with porous air diffuser 30a and 30b, and these two dispersions are suitable Join part 20a and 20b is the structural moiety of housing of vacuum cleaner.
Fig. 2 illustrates the horizontal sectional drawing of the vacuum cleaner of Fig. 1.Therefore, motor 50 by air towards receipts Storage 40 is discharged, then, catcher 40 air-flow is separated and points to two restricted parts 10a and 10b.Restricted part 10a and 10b are each via adaption section 20a and 20b and porous air diffuser 30a Connect with 30b.Because the air being less than each porous air diffuser by cross section of each restricted part Stream is by cross section, and these adaption section dissipate strongly, so that each restricted part expands with porous Dissipate device to connect.When dissipate move in adaption section time, each air stream is slowly, and quiet State pressure increases so that air stream is discharged in the way of mild by porous air diffuser by diffusion, and not The work using restricted part 10a and 10b to obtain can be damaged eliminate the noise.Discharge is not with powerful and fixed To concentrate air-spray form carry out.But, adaption section is closely, and makes Each restricted part last by the separate distance of cross section and the porous air diffuser being arranged in opposite Characteristic diameter less than each restricted part.It addition, whole discharge loop is due in restricted part The shortest by the opposing parallel layout between cross section by cross section and porous air diffuser.
Fig. 3 illustrates that the replacement of the present invention is implemented, and wherein, restricted part 10a and 10b are relative to porous Bubbler 30a and 30b offsets.For the vacuum cleaner shown in Fig. 2, by motor 50 The air discharged points to two restricted parts 10a and 10b by catcher 40, but dissipates adaptation Part 20a and 20b allow to make air stream gravity newly point to porous air diffuser 30a and 30b, although and partially Move, also will not produce influence of noise.The dissipating of adaption section allow to make air stream redirect and not Produce influence of noise, because the speed of air stream is automatically reduced.
It is appreciated that the various changes that will be apparent to persons skilled in the art and/or improvement can To be given to this theory in the case of without departing from the scope of the present invention being defined by the following claims The different embodiments of the present invention described in bright book.Specifically, with reference to each leading to porous expansion Dissipate two restricted parts in device, it is also contemplated that apply the present invention to such a dust suction Device, this vacuum cleaner includes single restricted part and single porous air diffuser.It is also conceivable to lengthen limit System part is relative to the partial offset of porous air diffuser.If it is furthermore noted that porous air diffuser is total Area is bigger, and the value of porosity can be less so that the average air speed of every mesh keeps substantially permanent Fixed.Although it means that the gross area of porous air diffuser likely increases, air is by area also It is to maintain constant.This permission keeps the certain of air velocity on the gross area of porous air diffuser Uniformity.

Claims (10)

1. a vacuum cleaner, described vacuum cleaner includes electrically ventilating machine, and described electrically ventilating machine sucks It is also discharged loop dispatch towards at least one by air stream, and at least one discharge loop described includes pipe Road, what described pipeline included being formed acoustic filter has constant air stream by least one of cross section Lengthening restricted part (10a, 10b), following after described lengthening restricted part is porous air diffuser (30a, 30b), described porous air diffuser (30a, 30b) has more than described lengthening restricted part The air stream by cross section of (10a, 10b) passes through cross section, it is characterised in that described discharge loop Including adaption section (20a, 20b), described adaption section (20a, 20b) is arranged in described lengthening Between restricted part (10a, 10b) and described porous air diffuser (30a, 30b) and described suitable Join part (20a, 20b) and include that the air stream dissipated passes through cross section.
Vacuum cleaner the most according to claim 1, it is characterised in that described lengthening restricted part There is characteristic diameter, described lengthening restricted part be have circular section cylindrical in the case of, Described characteristic diameter is the diameter of described lengthening restricted part, and in described lengthening restricted part In the case of cross section is not circle, described characteristic diameter is determined by below equation: Dc=4S/Pm, Wherein, Dc is characteristic diameter, and S is by cross section, and Pm is wetted perimeter, described adaption section (20a, 20b) have restriction described lengthening restricted part (10a, 10b) and described porous air diffuser (30a, The length of the distance between 30b), and the described length of described adaption section (20a, 20b) is little Described characteristic diameter in described lengthening restricted part (10a, 10b).
Vacuum cleaner the most according to claim 2, it is characterised in that described adaption section (20a, Described length 20b) is less than ten millimeters.
Vacuum cleaner the most according to any one of claim 1 to 3, described vacuum cleaner includes shell Body, described housing limits the inner space of described vacuum cleaner, it is characterised in that described adaption section (20a, 20b) is the structural member of described housing.
Vacuum cleaner the most according to any one of claim 1 to 3, it is characterised in that described Porous air diffuser (30a, 30b) by cross section be roughly parallel to described lengthening restricted part (10a, 10b) pass through cross section.
Vacuum cleaner the most according to any one of claim 1 to 3, it is characterised in that described Porous air diffuser (30a, 30b) is described lengthening restricted part (10a, 10b) by cross section By at least twice in cross section.
Vacuum cleaner the most according to any one of claim 1 to 3, it is characterised in that described Lengthen restricted part (10a, 10b) to offset relative to described porous air diffuser (30a, 30b).
Vacuum cleaner the most according to any one of claim 1 to 3, it is characterised in that described Adaption section (20a, 20b) is to expand with described lengthening restricted part (10a, 10b) and described porous Dissipate the parts that device (30a, 30b) is different.
Vacuum cleaner the most according to any one of claim 1 to 3, it is characterised in that described Porous air diffuser (30a, 30b) has a porosity, and described porosity is passed through area and material by air The ratio of the gross area in the flat cutting face of material limits, and described porosity is less than 60%.
Vacuum cleaner the most according to any one of claim 1 to 3, it is characterised in that described Porous air diffuser (30a, 30b) is the braiding of a kind of mesh having dimensions less than or being equal to 1 millimeter Material.
CN201210291702.0A 2011-09-12 2012-08-16 Including acoustic filter and the vacuum cleaner of air diffuser Expired - Fee Related CN102987986B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1158092A FR2979814B1 (en) 2011-09-12 2011-09-12 VACUUM COMPRISING A SILENCER AND AN AIR DIFFUSER
FR1158092 2011-09-12

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CN102987986A CN102987986A (en) 2013-03-27
CN102987986B true CN102987986B (en) 2016-10-26

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CN 201220407277 Withdrawn - After Issue CN202932852U (en) 2011-09-12 2012-08-16 Dust collector

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DE (1) DE202012008177U1 (en)
FR (1) FR2979814B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2979814B1 (en) * 2011-09-12 2013-08-23 Seb Sa VACUUM COMPRISING A SILENCER AND AN AIR DIFFUSER
DE112013007305A5 (en) 2013-08-07 2016-06-02 Trumpf Laser- Und Systemtechnik Gmbh Method for processing a plate-like workpiece with a transparent, glassy, vitreous, ceramic and / or crystalline layer, separating device for such a workpiece and product from such a workpiece
FR3094622B1 (en) * 2019-04-05 2021-05-28 Seb Sa Portable vacuum cleaner equipped with a removable filter

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KR100721305B1 (en) * 2005-11-28 2007-05-28 삼성광주전자 주식회사 Fan assembly for vacuum cleaner
CN201088542Y (en) * 2007-06-27 2008-07-23 苏州金莱克家用电器有限公司 Dust catcher with silencer and its silencer
JP2010099156A (en) * 2008-10-22 2010-05-06 Sharp Corp Vacuum cleaner
CN201861554U (en) * 2010-08-06 2011-06-15 上海电机学院 Intelligent noise reduction dust collector with music play device
CN202235157U (en) * 2011-09-14 2012-05-30 江苏美的春花电器股份有限公司 Dust collector
CN102525334A (en) * 2010-12-16 2012-07-04 乐金电子(天津)电器有限公司 Diverting and bypassing denoising structure of dust collector motor shell
CN202932852U (en) * 2011-09-12 2013-05-15 Seb公司 Dust collector

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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007045981A1 (en) * 2005-10-21 2007-04-26 Massimiliano Pineschi Sucking device
KR100721305B1 (en) * 2005-11-28 2007-05-28 삼성광주전자 주식회사 Fan assembly for vacuum cleaner
CN201088542Y (en) * 2007-06-27 2008-07-23 苏州金莱克家用电器有限公司 Dust catcher with silencer and its silencer
JP2010099156A (en) * 2008-10-22 2010-05-06 Sharp Corp Vacuum cleaner
CN201861554U (en) * 2010-08-06 2011-06-15 上海电机学院 Intelligent noise reduction dust collector with music play device
CN102525334A (en) * 2010-12-16 2012-07-04 乐金电子(天津)电器有限公司 Diverting and bypassing denoising structure of dust collector motor shell
CN202932852U (en) * 2011-09-12 2013-05-15 Seb公司 Dust collector
CN202235157U (en) * 2011-09-14 2012-05-30 江苏美的春花电器股份有限公司 Dust collector

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Publication number Publication date
CN202932852U (en) 2013-05-15
DE202012008177U1 (en) 2012-09-26
FR2979814B1 (en) 2013-08-23
FR2979814A1 (en) 2013-03-15
CN102987986A (en) 2013-03-27

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