EP1656061A1 - Staubsauger mit abluftstr mungskan len - Google Patents
Staubsauger mit abluftstr mungskan lenInfo
- Publication number
- EP1656061A1 EP1656061A1 EP04741398A EP04741398A EP1656061A1 EP 1656061 A1 EP1656061 A1 EP 1656061A1 EP 04741398 A EP04741398 A EP 04741398A EP 04741398 A EP04741398 A EP 04741398A EP 1656061 A1 EP1656061 A1 EP 1656061A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- channel
- vacuum cleaner
- flow channel
- cleaner according
- flow
- 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
Definitions
- the invention relates to a vacuum cleaner according to the preamble of claim 1.
- a vacuum cleaner which is provided within its device housing with a dust collecting space and a blower space arranged downstream in terms of space and flow, from which the air conveyed by an engine fan flows out through a blow-out duct.
- deflection devices are arranged in the blow-out duct.
- a pipe component is divided into several longitudinal channels in the direction of flow. The pipe component is divided into two trains, one train each gripping laterally next to a through opening integrated in the device housing and only being led back from there to the respective blow-out openings.
- the object of the invention is to enable a high level of noise reduction in the exhaust air flow with little effort.
- noise reduction should be achieved essentially without additional, complex deflection devices.
- a vacuum cleaner with such a noise reduction should also be inexpensive to manufacture.
- this object is achieved in that a first sub-channel and a second sub-channel of a flow channel for the exhaust air flow are brought together in front of the blow-out opening of the vacuum cleaner.
- the second subchannel is preferably connected to the first subchannel on the flow side.
- the at least two subchannels can end at a common connection point on the downstream side at the common blowout opening, but it is advantageous if the second subchannel already opens into the first subchannel before this first subchannel has reached the blowout opening.
- the second subchannel can in particular form at least one secondary flow channel which opens into the first subchannel which forms a main flow channel.
- a sub-flow channel is to be understood as any sub-channel that promotes a smaller amount of air than an assigned main flow channel.
- a bypass duct is preferably designed in such a way that the exhaust air stream flowing in the bypass duct flows at a higher speed than an exhaust air stream in the main flow duct.
- the secondary flow channel is preferably connected to the main flow channel in such a way that a secondary air flow fed into the main flow channel via the secondary flow channel crosses the main air flow.
- a particularly effective swirling is achieved by crossing the flow directions of the secondary air flow and the main air flow.
- the crossing is preferably carried out by vertically colliding air streams.
- the secondary air flow and main air flow can, however, also cross at a different angle to one another, for example either at an acute angle to one another or even at an obtuse angle to one another.
- the secondary air flow and main air flow could even be directed towards one another.
- the main flow channel is advantageously arranged to run behind an end of the motor / blower unit opposite an intake opening.
- the main air flow can be fed centrally to the motor / blower unit in the direction of the blow-out opening. If several secondary flow channels are provided, these can be connected to the main flow channel in the same length.
- the same length of the bypass flow channels ensures that the swirl effect at each intersection of the bypass air flow and the main air flow is at least approximately the same.
- Two bypass channels are preferably provided, which are arranged to run on opposite sides of the motor / blower unit.
- a plurality of bypass ducts, each in pairs to be arranged running on opposite sides of the motor / blower unit, which preferably open into a common main flow duct.
- the at least two secondary flow channels can have a rectangular cross section and can be arranged to extend essentially vertically. This arrangement results in a good draft in the secondary flow channels and the housing part of the vacuum cleaner which has the secondary flow channels is nevertheless simple and inexpensive to produce.
- Each secondary flow channel is preferably connected to the main flow channel via at least one inflow opening.
- the inflow opening can be designed as a circular bore in a thin intermediate wall between the secondary flow channel and the main flow channel. This creates a sharp-edged orifice in the area of the inflow opening, on which there is an additional swirling of the exhaust air flow.
- the free opening cross section of the inflow opening can preferably be smaller than the flow cross section in the rest of the secondary flow channel.
- the opening cross section of the at least one inflow opening is smaller than the flow cross section of the respective secondary flow channel. This results in a constriction of the
- Such a throttle point can also be in the form of a Venturi nozzle be trained.
- a plurality of in particular two inflow openings can be provided in each side flow channel. The sum of the opening cross sections of the two or more inflow openings should nevertheless be smaller than the flow cross section in the rest of the secondary flow channel.
- the at least one secondary flow channel and / or the main flow channel can be arranged to run between a housing part of a blower housing and a capsule part of an insulating capsule. So no separate components are required to represent the secondary flow channels or the main flow channel.
- the boundary walls of these flow channels are then formed by the existing walls of the housing part of a blower housing or a capsule part of an insulating capsule.
- the housing part of the blower housing and the capsule part of the insulating capsule are preferably formed in one piece. There are no steps or edges on the inner wall of the secondary flow channels or the main flow channel, as would be the case with assembled components with parting lines. In the case of the one-piece design, the inner walls of the secondary flow channels or of the main flow channel can be smooth-walled, as a result of which no undesired interference flows can be caused.
- the housing part can advantageously be a blower compartment cover.
- Figure 1 is a perspective view of a lower shell of a vacuum cleaner according to the invention.
- FIG. 2 shows a top view of the lower shell from FIG. 1;
- Figure 3 shows a cross section through a vacuum cleaner according to the invention with a lower shell according to Figures 1 and 2;
- FIG. 4 shows a perspective view of a blower compartment cover according to the invention
- Figure 5 shows a cross section through the longitudinal axis of a vacuum cleaner according to the invention.
- An embodiment of a vacuum cleaner according to the invention has a housing 1, the lower shell 2 of which is shown in FIG.
- the lower shell 2 is trough-shaped with a bottom surface 3 and a peripheral shell wall 4.
- Shell wall 4 extends essentially vertically upwards from an edge region of the bottom surface 3. At a front end of the lower shell 1 is on the
- a handle 5 is molded onto the lower shell 2.
- a partition 6 is approximately in a central area between the front end 7 of the
- the partition 6 extends from a first side wall section 9 shown at the left in FIG. 1 to a second side wall section 10 of the shell wall 4 shown at the rear on the right.
- the partition 6 divides the lower shell 2 into a front dust collection chamber 11 and a rear blower chamber
- the partition 6 has an inflow funnel 13 through which suction air from the
- Dust collection chamber 11 is sucked into the blower chamber 12.
- a first capsule part 14 is molded onto the lower shell 2 in the blower chamber 12.
- the first capsule part 14 is formed by wall sections 15a, 15b and 15c of the first capsule part 14, by a part of the partition 6 and a bottom part 3a of the bottom surface 3 enclosed by the wall sections 15a, 15b and 15c of the first capsule part 14.
- the rear wall section 15b has a cutout which is open at the edge and forms a first holding section 16 for a first bearing element 17 shown in FIG.
- the side wall sections 15a and 15c each have an opening 18a and 18b, which establish a flow connection between an interior space 19 delimited by the first capsule part 14 and a channel section 20 of a flow channel 21.
- the channel section 20 and part of the flow channel 21 are of the Wall sections 15a, 15b and 15c of the first capsule part 14 and wall sections 22a, 22b and 22c of a blower unit space 22 are laterally limited.
- the side wall sections 22a and 22c of the blower unit compartment 22 adjoin the rear wall sections 22b and extend forward to the partition wall 6 and form in the lower shell 2 a bowl-shaped, by means of an airtight, blower chamber cover, described in more detail in FIG. 4, one closed blower unit space 22.
- a second holding section 24 is formed on the partition 6 below a passage opening 23 and forms a shoulder 25 projecting into the blower space 12.
- the paragraph 25 is half-shell-shaped and open at the top. It extends along a circular ring line concentric with the passage opening 23.
- a second bearing element 26 can be inserted, which together with the first bearing element 17 accommodates a motor / blower unit 27 shown in FIG.
- the flow pattern is indicated by arrows P1 to P6.
- the motor / blower unit 27 is shown in the installed position between the wall sections 15a, 15b and 15c in the lower shell 2. Air which has been cleaned of dust by means of a filter bag or a dust removal box (not shown) is removed from the dust collection chamber 11 into the inflow funnel 13, as indicated by the arrows P1, from the front dust collection chamber 11 shown on the right in FIG. 2 into the rear, blower chamber 12 shown on the left in FIG. 2. The sucked-in air is passed through the partition 23 through the partition 6 and fed to a suction opening 28 of the motor / blower unit 27, as indicated by arrow P2.
- the sucked-in air flows through the motor / blower unit 27 and, at a rear end, as indicated by the arrows P3, out of the motor / blower unit 27 and into an inner duct section 28.
- the air flows forward between the housing wall of the motor / blower unit 27 and the wall sections 15a and 15c of the first capsule part 14 to the openings 18a and 18b.
- the direction of flow reverses, as indicated by the arrows P4, and the air now flows from front to rear in the outer channel section 20 backwards.
- the air at the rear end of the motor / blower unit 27 is deflected at a right angle, as indicated by the arrows P5, behind the wall section 15b of the first capsule part 14.
- the arrows P6 indicated in FIG. 2 indicate that the air at the end of the outer duct section 20 behind the motor / blower unit 27 is deflected in a direction which emerges from the plane of the drawing in FIG. 2, between a vertical wall section 29a of a second capsule part 30 and a wall 31 of a blower compartment cover 32 as shown in FIG. 3.
- FIG. 3 shows a cross section through a vacuum cleaner according to the invention with the lower shell 2 from FIGS. 1 and 2.
- the arrows P6 shown in FIG. 2 emerging from the plane of the drawing appear in FIG. 3 as an upward arrow P6.
- the air flows in the direction of arrow P6 in a main flow channel 33 running between the wall sections 29a of the second capsule part 30 and the wall 31 of the blower chamber cover 32. Behind the rear end of the motor / blower unit 27, the air inside the main flow channel 33 is led upward and deflected in a horizontal flow direction at the upper end of the vertical wall section 29a.
- the main flow channel 33 then runs along a horizontal wall section 29b of the second capsule part 30 below the blower chamber cover 32 to an inflow opening 34 below a blow-out filter 35.
- the outflow filter 35 abuts the inflow opening 34 with its upstream surface. Residual particles that are still contained in the air stream can be separated off at the blow-out filter 35. Behind the outflow-side surface of the blow-out filter 35, the cleaned air flow leaves the vacuum cleaner via a plurality of blow-out openings 36, which is designed as a louvered blow-out grille.
- the handle 5, the dividing wall 6, and also the wall sections 15 of the first capsule part 14 and the wall sections 22 of the blower chamber 12 are molded onto the lower shell 2, which is produced as a one-piece plastic injection-molded part.
- An upper shell 37 covers the blower chamber 12 and a cable chamber 38 for receiving a cable drum 39 (shown in FIG. 4).
- the upper outer contour of the vacuum cleaner is completed by a dust chamber cover 40, which attaches to the upper shell 37 and extends from a rear end 41 in the vicinity of the blow-out opening 36 to a front end 42.
- the front end 42 of the dust chamber cover 40 has a locking element 43 which fixes the pivotably mounted dust chamber cover 40 to the lower shell 2 in a closed position by means of a counter-latching element 44.
- the groove 46 is formed on an upper end of a dust chamber wall 48 which is molded onto the base shell 2 and surrounds the dust collecting chamber 11.
- a dust air opening 49 is introduced in the dust chamber cover 40, to which a suction hose connector (not shown) can be connected.
- a niche 50 which is open to the outside, for accommodating accessories 54a, 54b, such as crevice nozzles, upholstery nozzles, furniture brushes or instructions for use or information sheets, is formed on the dust chamber cover 40.
- the recess 50 which is open to the outside, is covered by an accessory cover 52 mounted on the dust chamber cover 40 by means of a pivot bearing 51.
- a receptacle pallet 53 which is preferably made from a flat, thermoplastic plastic film and is molded into a spatial structure by the blowing process, can be removably inserted in the recess 51 for the correct attachment of the accessories 54a, 54b.
- FIG. 4 shows a blower compartment cover 32 according to the invention in a perspective view.
- the blower chamber cover 32 is designed as an approximately cuboidal shell body.
- the first side wall section 56, the second side wall section 57 and the rear wall section 58 are connected to one another at their side edges to form a U-shaped side wall 59 of the blower chamber cover 32.
- the inflow opening 34 is integrated in the ceiling wall 55.
- the front wall section 29d of the second capsule part 30 is formed on one end of the ceiling wall 55 shown in FIG. 4 by means of a connecting web 59.
- the front wall section 29d of the second capsule part 30 is connected laterally to the first wall section 56 and the second wall section 57 of the blower chamber cover 32.
- the front wall section 29d is shaped like a semicircular disk and has a semicircular cutout 60 which is open at the edge for receiving the second bearing element 26 of the motor / blower unit 27.
- the rear vertical wall section 29a of the second capsule part 30 is molded onto the blower compartment cover 32.
- the main flow channel 33 runs in the direction of the inflow opening 34 in the ceiling wall 55.
- a first secondary flow channel 61a extends between the side wall section 29c and the first side wall section 56.
- a second secondary flow channel 61b runs between the side wall section 29b and the second side wall section 57.
- FIG. 5 shows the first secondary flow channel 61a and the second secondary flow channel 61b in a cross section through the longitudinal axis of the vacuum cleaner according to the invention.
- the lower shell 2 with the molded-on wall sections 22a and 22c of the blower chamber 12 is shown. Inside the blower chamber 12, the wall sections 15a and 15c of the first capsule part 14 are molded onto the bottom surface 3.
- the first secondary flow channel 61a is delimited by the wall section 22a and the wall section 15a.
- a first secondary air flow flows upward in the secondary flow channel 61a, between the wall section 29c and the first side wall section 56 of the blower chamber cover 32, and a second secondary airflow flows upward in the secondary flow channel 61b, between the wall section 29b and the second side wall section .57 of the blower compartment cover 32.
- a groove-shaped sealing arrangement 63 is formed on a lower edge 62 of the side wall sections 56 and 57, and of the rear wall section 58 (not shown).
- An upper peripheral edge 64 of the wall sections 22a, 22b and 22c engages in the groove.
- a sealing cord can be inserted into the groove.
- the sealing arrangement 63 closes a parting line between the blower chamber cover 32 and the blower chamber 12.
- a further sealing arrangement 65 is provided between the first capsule part 14 and the second capsule part 30.
- the sealing arrangement 65 is designed as a labyrinth seal.
- the wall sections 15a, 15b and 15c of the first capsule part 14 partially cover the wall sections 29a, 29b and 29c of the second capsule part 30.
- the air is swirled and, as indicated by the arrows P10, enters the inflow opening 34 in a diffuse flow.
- the blow-out filter 35 is inserted into a holder 67 (FIG. 4) molded onto the blower chamber cover 32.
- the holder has a peripheral edge shoulder 68, on which a seal 69 is formed, on which the blow-out filter 35 rests in a sealing manner. As shown in FIG. 4, not only the holder 67 but also a cable run 70 is integrally formed on the blower compartment cover 32.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Suction Cleaners (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10336828A DE10336828B4 (de) | 2003-08-11 | 2003-08-11 | Staubsauger mit Abluftströmungskanälen |
PCT/EP2004/008952 WO2005016106A1 (de) | 2003-08-11 | 2004-08-10 | Staubsauger mit abluftströmungskanälen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1656061A1 true EP1656061A1 (de) | 2006-05-17 |
EP1656061B1 EP1656061B1 (de) | 2011-11-16 |
Family
ID=34177439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04741398A Expired - Lifetime EP1656061B1 (de) | 2003-08-11 | 2004-08-10 | Staubsauger mit abluftströmungskanälen |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1656061B1 (de) |
CN (1) | CN100475118C (de) |
AT (1) | ATE533391T1 (de) |
DE (1) | DE10336828B4 (de) |
ES (1) | ES2374397T3 (de) |
RU (1) | RU2330597C2 (de) |
WO (1) | WO2005016106A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20122492U1 (de) * | 2001-10-01 | 2005-12-08 | BSH Bosch und Siemens Hausgeräte GmbH | Vorrichtung zum Aufsaugen von einzusammelnden Partikeln sowie Bodenstaubsauger |
DE102008041228A1 (de) * | 2008-08-13 | 2010-02-18 | BSH Bosch und Siemens Hausgeräte GmbH | Staubsauger |
DE102010001140B4 (de) * | 2009-12-30 | 2012-03-15 | BSH Bosch und Siemens Hausgeräte GmbH | Staubsauger mit Eingreifschutzgitter |
DE102011007212B4 (de) * | 2011-04-12 | 2020-04-23 | BSH Hausgeräte GmbH | Staubsauger mit geteiltem Luftströmungskanal |
GB2534303B (en) * | 2013-03-13 | 2017-05-17 | Techtronic Floor Care Tech Ltd | A source of suction for a vacuum cleaner |
GB2548574B (en) | 2016-03-21 | 2018-04-04 | Dyson Technology Ltd | Vacuum cleaner having a filter assembly |
CN105996891B (zh) * | 2016-07-25 | 2018-06-29 | 江苏美的清洁电器股份有限公司 | 吸尘器的主机及吸尘器 |
CN112867422B (zh) * | 2018-10-19 | 2023-05-09 | 阿尔弗雷德·卡赫欧洲两合公司 | 具有声学角件的抽吸机 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2460863C2 (de) * | 1974-12-21 | 1985-01-24 | Vorwerk & Co Interholding Gmbh, 5600 Wuppertal | Staubsauger |
DE7908622U1 (de) * | 1979-03-27 | 1980-02-21 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Staubsauger |
US4533370A (en) * | 1982-03-30 | 1985-08-06 | Sharp Kabushiki Kaisha | Electric cleaner with minimum noise |
DE3815320C3 (de) * | 1988-05-05 | 1998-02-12 | Aeg Hausgeraete Gmbh | Staubsauger |
US4970753A (en) * | 1990-02-23 | 1990-11-20 | Ryobi Motor Products Corp. | Vacuum cleaner noise reducing arrangement |
JPH11514264A (ja) * | 1995-10-10 | 1999-12-07 | ニルフイスク アクテイーゼルスカブ | 吸込みクリーナ用サイレンサ |
-
2003
- 2003-08-11 DE DE10336828A patent/DE10336828B4/de not_active Expired - Fee Related
-
2004
- 2004-08-10 EP EP04741398A patent/EP1656061B1/de not_active Expired - Lifetime
- 2004-08-10 CN CNB2004800231104A patent/CN100475118C/zh not_active Expired - Fee Related
- 2004-08-10 RU RU2006103276/12A patent/RU2330597C2/ru not_active IP Right Cessation
- 2004-08-10 AT AT04741398T patent/ATE533391T1/de active
- 2004-08-10 WO PCT/EP2004/008952 patent/WO2005016106A1/de active Application Filing
- 2004-08-10 ES ES04741398T patent/ES2374397T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2005016106A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2005016106A1 (de) | 2005-02-24 |
CN1835706A (zh) | 2006-09-20 |
RU2330597C2 (ru) | 2008-08-10 |
DE10336828A1 (de) | 2005-03-10 |
ATE533391T1 (de) | 2011-12-15 |
DE10336828B4 (de) | 2013-04-18 |
CN100475118C (zh) | 2009-04-08 |
EP1656061B1 (de) | 2011-11-16 |
ES2374397T3 (es) | 2012-02-16 |
RU2006103276A (ru) | 2006-07-27 |
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