CN101152065B - Vacuum cleaner equipped with a noise-attenuation device - Google Patents
Vacuum cleaner equipped with a noise-attenuation device Download PDFInfo
- Publication number
- CN101152065B CN101152065B CN2007101613563A CN200710161356A CN101152065B CN 101152065 B CN101152065 B CN 101152065B CN 2007101613563 A CN2007101613563 A CN 2007101613563A CN 200710161356 A CN200710161356 A CN 200710161356A CN 101152065 B CN101152065 B CN 101152065B
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- air
- dust catcher
- led
- air output
- cavity
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Suction Cleaners (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
- Motor Or Generator Frames (AREA)
- Manipulator (AREA)
- Pipe Accessories (AREA)
- Massaging Devices (AREA)
Abstract
The present invention relates to a dust collector which comprises a frame in which an electric motor (20) is arranged. The electric motor is connected with a fan, therefore, when in operation, the air passes through the upstream of the electric motor (20) to the pipe of a suction nozzle and is sucked to the frame air outlet (340) at the downstream of the electric motor (20). The dust collector also comprises a filter device arranged on the air flow path and at the upstream of the electric motor (20) and a noise damping device (300) arranged at the downstream of the electric motor (20). The dust collector is characterized in that the noise damping device (300) comprises a cavity determined by parts (310, 330) of the frame, the central part of the cavity comprises a vertical air output guide passage (350) of the dust collector, one end of the air output guide passage (350) is communicated to the outside, and another end is arranged in the inner part of the cavity. The air output guide passage (350) is never provided with air filter or flow guide members.
Description
Technical field
The present invention relates to the dust catcher household appliance technical field, particularly relate to dust collector structure.
The objective of the invention is to propose a kind of device that can reduce the noise relevant with the dust catcher operation.Many files all relate to this problem, particularly propose the method for closed motor, and are associated from motor to the air path that is located at dust catcher frame middle outlet or unconnected with prolonging.
Background technology
For example, file EP 0345699 proposes to prolong motor air path afterwards by baffle plate.But such device volume is very big, and therefore very heavy.
Also know at the air outlet slit of dust catcher and manage noise everywhere.Therefore, file US 4,015,683 has described the device that is made of a tube connector that is connected with the dust catcher air outlet slit.The pipe that is lined with the same diameter of foamed material in one is positioned at its end opposite, and is that the center of a star cross section is led the groove that can strengthen the acoustic attenuation effect is set.One has the end that plastic plate that central authorities lead the star cross section is positioned at this pipe again.This being arranged in has a bulge on the device, this bulge may cause the certain fragility of described device when device moves.In addition, acoustic attenuation effect is only with relevant in the interior special star structure that is lined with path in the leading of foamed material and described foamed material.Therefore foamed material degraded in time and can not guarantee the persistence of acoustic attenuation effect inevitably.
Summary of the invention
The present invention overcomes above-mentioned shortcoming by proposing a dust catcher, this dust catcher comprises a frame, accommodate an electric notor in the inside of described frame, this electric notor is connected with a blower fan, thereby when operation, allow air to be drawn into the frame air outlet slit that is positioned at described electric notor downstream from the pipe that ends at suction nozzle of described electric notor upstream always, described dust catcher also comprises and being positioned on the air flow path, be preferably placed at the filter and the noise-attenuation device that is arranged in described electric notor downstream of described electric notor upstream, it is characterized in that, described noise-attenuation device comprises the cavity that the part by described frame defines, and described cavity part in the central comprises that the vertical substantially air output of described dust catcher leads, and the outside that described dust catcher is led in one of end by it is led in described air output, and its other end is positioned at the inside of described cavity, and described air output is led and is not provided with any air filtration or water conservancy diversion parts.
Cavity with without any air filtration or water conservancy diversion parts lead combine, can be especially by changing the circulation of air cross section and realizing the effect of very big reduction noise by the continuous shape of leading.Therefore to be contained in the idea and the embodiment at air outlet slit place of dust catcher frame opposite for the present invention and grid and the filter that is called " terminal ".
Air output is led advantageously straight, and its length is greater than 30mm.One line straight and leading of having suitable length to help making the air rheology to get quiet may become stratiform so that air is flow to end.
According to another key character of the present invention, it is tubular that described air output is led, and its diameter is between between the 20mm to 55mm.
Known that air velocity plays an important role in producing noise.According to the feature of structure of dust collector and particularly its flow, therefore the flow area that air output is led should adapt to, promptly as far as possible little, so that have good efficient, but again should be too not little, produce noise so that avoid owing to the too high air speed that the cross section reduces to cause.
For example, for about 28 liters/second flow, the diameter of selecting air output to lead is approximately 35mm, and promptly sectional area is approximately 10cm
2
In order to optimize the efficient of device, before the air output of dust catcher is led, an expanding chamber is arranged, the ventilation area of described expanding chamber is at least 10 times of the ventilation area led of air output.
In addition, the cross section of leading is constant, thereby allows to keep laminar flow.The cross section does not have step or fracture suddenly, and this has been avoided the separation of air layer, and this separation may cause eddy current, therefore causes noise.
Advantageously, entering into the air stream that air output leads and be directed, is progressive and gentle so that make the conveying of air.Therefore, the inlet that air output is led is flaring, has the flaring part of one or more radiuses greater than the bending of 15mm simultaneously.
For improving the efficient that air output is led, the rack section that limits cavity comprises the inner lining body of the sound-absorbing material of plastic foam type.
Improve this validity by place sound-absorbing material between described rack section and rigidity inner structure, this can also increase the wall thickness of device on the whole except can being avoided any vibration, has therefore limited the transparency of wall.
For the fracture of limiting wall, the rack section basic configuration that forms cavity is a spill.From the angle of air flow path, concave shape can avoid described air stream to cause frontal impact with respect to the wall that forms cavity, has limited resonance effects like this.
The outer air delivery outlet of advantageously, leading has the seamed edge of radius of curvature less than 2mm.
Many tests can prove the importance of the air outlet slit of leading of described device, particularly have the importance of the as far as possible little seamed edge of radius of curvature.
In addition, dust collector structure is studied, so that the air outlet slit of motor is arranged in the extended line that the output of dust catcher air is led substantially.
Description of drawings
The description of carrying out will provide other features and advantages of the present invention with reference to the accompanying drawings, and these accompanying drawings just provide as non-limiting examples.
Fig. 1 is the birds-eye perspective that is equipped with dust catcher of the present invention.
Fig. 2 is the bottom perspective view that does not descend the dust catcher of main body.
Fig. 3 is the profilograph by the dust catcher of Fig. 2.
Fig. 4 is the perspective detail view of dust catcher one part.
Fig. 5 is the decomposition diagram that is equipped with dust catcher motor of the present invention and its clamshell.
Fig. 6 looks exploded view in the end of object of the present invention.
Fig. 7 is decomposition profile figure of the present invention.
Fig. 8 is the vertical view of object of the present invention.
Fig. 9 and 10 is respectively along the A-A of Fig. 8 and the profile of B-B.
Figure 11 is the detail view of Figure 10 part.
Figure 12 is the front view of the part that exists in one embodiment of the invention.
Figure 13 to 16 is that a noise-attenuation device is implemented modification, and Figure 13 and 14 is the exploded view by two kinds of different perspective fashion, and Figure 15 is a front view, and Figure 16 is the profile along the axis A-A of Figure 15.
The specific embodiment
Especially as Figure 1-3, dust catcher 1 comprises a main body of dust collector, and this main body has the lid 6 in the seat chamber 8 of following main body 2, last main body 4, sealing dust catcher bag.Seat chamber 8 comprises the opening of some and motor chamber air communication on its rear surface.
Also be provided with the startup of controlling motor respectively on the last main body 4 and stop, cable twines again and the parts of motor power 12,14 and 16.The discharging of the air of motor by be positioned at the dust catcher rear portion, sub-component 300 on last main body 4 carries out.
The motor 20 of dust catcher is arranged in the clamshell 22 that is connected with the air outlet slit in reservoir bag seat chamber 8.
Fig. 5 has represented the structure in motor zone more accurately in exploded view.Therefore motor 20 is arranged in clamshell 22, and described clamshell 22 comprises: upstream portion 202, its covering are passed the motor air inlet of opening 203 enforcements on top 202; With the downstream part 210 that covers the motor air outlet.Therefore clamshell surrounds motor fully, and therefore can reduce noise by the sealing of such formation.
Packing ring 216 can be realized the sealing of motor air inlet in clamshell, and packing ring 218 can seal the lattice chamber 8 that holds refuse bag and is connected with air between the motor zone.
In addition, the sealing between two parts of packing ring 214 assurance clamshells.
In addition, the lower part 210 of clamshell is installed with a plurality of eyelets 212 that air is flowed out from clamshell.Sound absorption part 230 is provided with facing to these eyelets as foamed material.This foam-based originally is positioned at air and exports to from clamshell on the entire path of dust catcher frame outlet, and this frame outlet is before the path of HEPA type filter 240 and sub-component 300 of flowing through.
Advantageously, and shown in Fig. 3 and 5, the interior clamshell 210 of motor and foamed material 230 and HEPA type filter 240 are arranged in a bearing 220 that will be fixed on the clamshell 202, therefore the described bearing that constitutes second clamshell can pass through the wall that had, further reduces the noise that perceives in the dust catcher outside.
According to the present invention, dust catcher comprises the noise-attenuation device 300 of dust catcher air outlet slit, and this device comprises type spare 330 in a jacket 310, the inner foam material 320 and.
Can be clear that as Fig. 6,7 and 9 global shape of these three parts 310,320,330 all is recessed.
Clamshell 310 comprises and cooperating with the part of upper shell 4 so that hold it in claw 312 on the dust catcher.
Noise-attenuation device 300 comprises that central authorities lead 350, and these central authorities lead the outside of leading to dust catcher by opening 340, and by part 310 and 330 in conjunction with and form.Therefore, clamshell 310 comprises leads part 314, be provided with some in this end of leading part and keep pawls 316, for shown in embodiment, the quantity of described maintenance pawl is six.
In addition, clamshell 310 has vaulted 318 of the mechanical strength of strengthening it at the place of leading.
As for interior type spare 330, it have one comprise that two annulars lead lead part 332, these two annulars are led and are: with lead that part 314 cooperates lead 3320 and diameter bigger lead 3322 than leading 3320, lead by being connected to each other with flaring part 334 an of bending for these two, this part 334 forms air output and leads 350 inlet.
In addition, lead 3320 an outer depression that is used for adaptive maintenance pawl 316 is arranged.
Centre part 320 is a kind of sound-absorbing materials, as foamed material, its shape is near the interior cover of jacket 310, so it is provided with a central opening and one vaulted 322 simultaneously, thereby the zone that is not capped by restriction makes its sound attenuation effect effective as far as possible.
Noise-attenuation device 300 when Fig. 9 and three parts 310,320 and 330 of 10 expressions install.
Therefore, foamed material 320 is by the reclining inner surface of jacket 310 of interior type spare 330, and type spare 330 is locked on the part 310 by keeping hook 336 in described.In order to make the foamed material part 310 that reclining well, interior type spare 330 has the similar structure of interior cover with part 310, and annular is two as previously explained leads 3320,3322 thereby cause forming.
When three parts are installed, keep pawl 316 to be positioned at leading on 3320 the outer step, therefore make leading of forming like this 350 have smooth inner surface, do not have the cross section fracture, avoided the generation noise like this.
According to the example that proposes, tubaeform 334 the radius of curvature that air enters the inlet of leading in 350 is approximately 20mm.The height of leading is approximately 45mm, comprises that a height h is approximately straight line portion and sweep 334 of 35mm.The diameter of straight line portion is approximately 35mm.
350 air outlet slit is led in the detailed expression of Figure 11.According to this figure, consider to be employed to implement the parts of this part, to lead to comprise the as far as possible little seamed edge of a radius of curvature 352.According to the advantageous embodiment by method of molding, radius of curvature r is approximately 1.5mm.
Therefore the noise-attenuation device 300 of air outlet slit is positioned on the part of a substantially flat of main body 4, is right after filter 240 tops, thereby so an air expansion cavity 302 is set.
The volume of this cavity is approximately 700cm
3, be approximately 30cm and lead 350 volume
3
In service, when motor is put into operation, force air in the suction air pipeline, to flow.Air passes filter bag, passes after the motor then, discharges from motor along the direction of arrow shown in Figure 3 again.Air is discharged from clamshell by opening 212 then, and described opening 212 can make air stream be more evenly distributed when this clamshell is discharged, and therefore helps to reduce the noise of air stream.Air stream is along sound absorption part 230, so that enter into noise-attenuation device 300 then after passing filter 220.
The inlet of noise-attenuation device 300 comprises the breathing space of air in cavity 302 lower parts, thus the expanding chamber 303 that dots in the pie graph 9.Cavity 302 and lead difference in volume big between 350 can produce a real air cushioning district by cavity 302.Be inserted on the height j of about 30mm in the cavity leading 350, promptly be approximately and lead 2/3rds of total height on--this also is equivalent to 2/3rds of cavity 302 height substantially--, this be through test of many times so as to find plant bulk and its validity between the result of good combination.
Air, is led the given curve in 350 porch 334 and is made the passage streaming (fluidifier) that enters in leading by leading 350 from this expanding chamber discharge to be stratiform and quiet gentle airflow pattern substantially then.Circulation area in the expanding chamber 303 is to lead at least 10 times of circulation area in 350.These changes of section go far towards the sound attenuation effect.
As seeing among Fig. 3, the air outlet slit of motor is led 350 with air output and is alignd substantially, therefore avoids the vortex, reduces length and the joint quantity led simultaneously.This alignment helps obtaining laminar airflow, or obtains having the air-flow of minimum eddy currents at least.
But, for avoid user or his relatives particularly child can insert object by opening 340, can a grid 400 be set in 350 leading,, lead 314 and 3320 intersection and this grid is inserted into for example by the opening 402 that cooperates with maintenance pawl 316 is set.This grid should be inoperative on acoustics, and it only has the barrier effect that stops from the object in the dust catcher external world.Therefore on this meaning, study material type, its structure and the sizing grid of grid.
The noise-attenuation device of this air outlet slit advantageously is used to as limiting the unfolded part of other noise source, for example using replenishing of the foamed material that is provided with on special motor clamshell and the air flow path etc.In order to use shown device better, also can consider to increase near the wall thickness of the part of air flow path, so that the transparency of limiting wall, thereby most of noise is carried via air flow path.
Can consider some enforcement modification, and not exceed scope of the present invention.
Figure 13-16 especially is illustrated in another of noise-attenuation device at the air outlet slit place of dust catcher frame may embodiment.
Therefore, implement modification according to this, the same with above-mentioned device 300, noise-attenuation device 500 keeps the shape of depression on the whole, therefore and have jacket 510 and interior type spare 530, and install 300 equally, clamshell 510 and interior type spare 530 pass through hook spare 516 and lock mutually.Its main difference is with tubaeform or to laugh at the frame air outlet slit that the U shape passage 550 of mouth shape determines relevant, as shown in figure 15.Therefore the air outlet slit 540 of frame is not provided with filter, as shown in figure 15, have only one to be connected two edges of described passage 550 with the needle beam of forming from the part 534 of interior type spare 530 at its mid portion by a part 542 from clamshell 510, thus can ruggedized construction.But this needle beam is very unnoticed, and only the air stream of outlet mobile is had very little influence.
In addition, although do not have also do not have grid as the part 320 of device 300 and 400 inner foam material in device 500, their existence may be necessary, so that to improve and protective device with device 300 identical modes.Their setting is with basic identical to installing being provided with of 300 descriptions.
The profile of device 500 shown in Figure 16 is represented to lead 550 and is had and lead 350 similar structures, lead part 532 and 514 by what interior type spare 530 and clamshell 510 had respectively for two, can lead the outer steps that form on part 532 and 514 by two be to lead 550 slippery inner surface that realize not having the cross section to change suddenly.In addition, leading part 532 also has a bending and flaring part 534 down, and the radius of curvature of this part is greater than 15mm.
According to this modification, the height of leading is approximately 35mm, comprising the constant cross-section part of a height m near 30mm.For the width r near 13mm, the length q that leads is approximately 200mm, thereby the circulation of air sectional area of dust catcher outlet is approximately 26cm
2Be 35mm, be that actual internal area is 6.6cm with respect to the diameter d of leading 350
2 Device 300, obviously this bigger numerical value can reduce the air velocity of dust catcher outlet, can reduce the air sound effect of whistling like this, when air velocity improved, it may be very worried to the user that this air whistles.The reduction of this speed also helps the noise that reduces air stream.Lead 550 circulation of air sectional area preferably at 20cm
2-30cm
2Between.
Noise-attenuation device 500 also comprises air expansion cavity 502, and the volume of the cavity 302 of the volumetric ratio device 300 of this cavity is slightly little, but the difference between this volume and the channel volume is enough big, so that cavity 502 keeps the characteristic of foregoing air stream damper.
In addition, no matter in material, density or configuration aspects, can use the sound absorption part of other type.Also can consider resonating cativty, and combine with shown device or its enforcement modification in conjunction with helmholtz (Helmholtz) or micropore resonator type.
Claims (12)
1. dust catcher (1); It comprises a frame; Accommodate an electric notor (20) in the inside of described frame; This electric notor is connected with a blower fan; Thereby when operation, allow air to be drawn into the air outlet slit (340) in the described electric notor of being positioned at of described frame (20) downstream from the pipe that ends at suction nozzle of described electric notor (20) upstream always; Described dust catcher also comprises the filter that is positioned on the air flow path and the noise-attenuation device (300,500) that is arranged in described electric notor (20) downstream
It is characterized in that, described noise-attenuation device (300,500) comprise a part (310 by described frame, 330,510,530) cavity (302 that defines, 502), and described cavity part in the central comprises that the vertical substantially air output of described dust catcher (1) leads (350,550), and described air output leads (350,550) lead to the outside of described dust catcher (1) by its one of end, and its other end is positioned at described cavity (302,502) inside, described air output leads (350,550) be not provided with any air filtration or water conservancy diversion parts.
2. dust catcher as claimed in claim 1 (1) is characterized in that, (350,550) are led in described air output is straight, and its length (h) is greater than 30mm.
3. dust catcher as claimed in claim 1 or 2 (1) is characterized in that, (350) are led in described air output is tubular, and its diameter (d) is between between the 20mm to 55mm.
4. dust catcher as claimed in claim 1 or 2 (1) is characterized in that, the trumpet-shaped U-shaped of being shaped as of (550) is led in described air output, and the circulation of air sectional area that this air output is led is between 20cm
2To 30cm
2Between.
5. dust catcher as claimed in claim 1 or 2 (1), it is characterized in that, leading (350) in the output of the air of described dust catcher (1) has an expanding chamber (303) before, and the ventilation area of described expanding chamber is that at least 10 times of ventilation area of (350) are led in described air output.
6. dust catcher as claimed in claim 1 or 2 (1) is characterized in that, the cross section that (350,550) are led in described air output is constant.
7. dust catcher as claimed in claim 1 or 2 (1) is characterized in that, the inlet that (350,550) are led in described air output is flaring, has the flaring part (334,534) of radius greater than one or more bendings of 15mm simultaneously.
8. dust catcher as claimed in claim 1 or 2 (1) is characterized in that, the rack section (310,510) that defines described cavity (302,502) comprises the inner lining body of foam type sound-absorbing material (320).
9. dust catcher as claimed in claim 8 (1) is characterized in that, described sound-absorbing material (320) is positioned between a described rack section (310,510) and the rigidity inner structure (330,530).
10. dust catcher as claimed in claim 1 or 2 (1) is characterized in that, the shape that defines the rack section (310,510) of described cavity (302,502) is spill substantially.
11. dust catcher as claimed in claim 1 or 2 (1) is characterized in that, the outer air delivery outlet that (350) are led in described air output has the seamed edge (352) of radius of curvature (r) less than 2mm.
12. dust catcher as claimed in claim 1 or 2 (1) is characterized in that, the air outlet slit of described electric notor (20) is arranged in the air of described dust catcher (1) substantially and exports the extended line of leading (350,550).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0608574A FR2906449B1 (en) | 2006-09-29 | 2006-09-29 | VACUUM EQUIPPED WITH A NOISE MITIGATION DEVICE |
| FR0608574 | 2006-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101152065A CN101152065A (en) | 2008-04-02 |
| CN101152065B true CN101152065B (en) | 2011-11-30 |
Family
ID=37951860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101613563A Active CN101152065B (en) | 2006-09-29 | 2007-09-28 | Vacuum cleaner equipped with a noise-attenuation device |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1905334B1 (en) |
| CN (1) | CN101152065B (en) |
| AT (1) | ATE489025T1 (en) |
| DE (1) | DE602007010707D1 (en) |
| ES (1) | ES2355944T3 (en) |
| FR (1) | FR2906449B1 (en) |
| PL (1) | PL1905334T3 (en) |
| PT (1) | PT1905334E (en) |
| RU (1) | RU2415635C2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2967882B1 (en) | 2010-11-25 | 2013-08-23 | Seb Sa | PRINCIPAL VACUUM BODY |
| CN102648834A (en) * | 2011-02-24 | 2012-08-29 | 苏州韩京姬科技有限公司 | Sweeper |
| CN105640431B (en) * | 2016-03-21 | 2018-03-27 | 江苏美的清洁电器股份有限公司 | The ducting system and dust catcher of dust catcher |
| FR3120296B1 (en) * | 2021-03-08 | 2023-02-10 | Seb Sa | Household vacuum cleaner equipped with a sound attenuation cavity |
| WO2023182924A1 (en) * | 2022-03-21 | 2023-09-28 | Lionsbot International Pte. Ltd. | Noise suppressed vacuum motor assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4418443A (en) * | 1981-12-07 | 1983-12-06 | Breuer Electric Mfg. Co. | Noise suppressor for vacuum sweepers and the like |
| EP0345699A2 (en) * | 1988-06-06 | 1989-12-13 | Hitachi, Ltd. | Vacuum cleaner having silencer mechanism |
| JP2001087178A (en) * | 1999-09-20 | 2001-04-03 | Mitsubishi Electric Corp | Suction tool for vacuum cleaner |
| JP2001231725A (en) * | 2000-02-23 | 2001-08-28 | Matsushita Electric Ind Co Ltd | Vacuum cleaner |
| CN1600232A (en) * | 2003-09-28 | 2005-03-30 | 乐金电子(天津)电器有限公司 | Structure for reducing notice in vacuum cleaner |
| CN1775160A (en) * | 2004-11-15 | 2006-05-24 | 三星光州电子株式会社 | Cyclonic dust-collecting apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2330701A (en) * | 1939-12-07 | 1943-09-28 | Hoover Co | Suction cleaner |
| US2555742A (en) * | 1949-04-08 | 1951-06-05 | Finn E Grue | Suction cleaner device |
| US4015683A (en) | 1975-12-29 | 1977-04-05 | Purex Corporation Ltd. | Noise suppressor for vacuum sweeper and the like |
-
2006
- 2006-09-29 FR FR0608574A patent/FR2906449B1/en not_active Expired - Fee Related
-
2007
- 2007-09-06 ES ES07356118T patent/ES2355944T3/en active Active
- 2007-09-06 EP EP07356118A patent/EP1905334B1/en active Active
- 2007-09-06 AT AT07356118T patent/ATE489025T1/en not_active IP Right Cessation
- 2007-09-06 PL PL07356118T patent/PL1905334T3/en unknown
- 2007-09-06 DE DE602007010707T patent/DE602007010707D1/en active Active
- 2007-09-06 PT PT07356118T patent/PT1905334E/en unknown
- 2007-09-28 RU RU2007136059/12A patent/RU2415635C2/en not_active IP Right Cessation
- 2007-09-28 CN CN2007101613563A patent/CN101152065B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4418443A (en) * | 1981-12-07 | 1983-12-06 | Breuer Electric Mfg. Co. | Noise suppressor for vacuum sweepers and the like |
| EP0345699A2 (en) * | 1988-06-06 | 1989-12-13 | Hitachi, Ltd. | Vacuum cleaner having silencer mechanism |
| JP2001087178A (en) * | 1999-09-20 | 2001-04-03 | Mitsubishi Electric Corp | Suction tool for vacuum cleaner |
| JP2001231725A (en) * | 2000-02-23 | 2001-08-28 | Matsushita Electric Ind Co Ltd | Vacuum cleaner |
| CN1600232A (en) * | 2003-09-28 | 2005-03-30 | 乐金电子(天津)电器有限公司 | Structure for reducing notice in vacuum cleaner |
| CN1775160A (en) * | 2004-11-15 | 2006-05-24 | 三星光州电子株式会社 | Cyclonic dust-collecting apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2007136059A (en) | 2009-04-10 |
| DE602007010707D1 (en) | 2011-01-05 |
| FR2906449B1 (en) | 2008-11-07 |
| PL1905334T3 (en) | 2011-04-29 |
| CN101152065A (en) | 2008-04-02 |
| PT1905334E (en) | 2011-03-01 |
| RU2415635C2 (en) | 2011-04-10 |
| ES2355944T3 (en) | 2011-04-01 |
| FR2906449A1 (en) | 2008-04-04 |
| EP1905334B1 (en) | 2010-11-24 |
| EP1905334A1 (en) | 2008-04-02 |
| ATE489025T1 (en) | 2010-12-15 |
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