EP2510856A2 - Aspirateur avec canal de flux d'air divisé - Google Patents

Aspirateur avec canal de flux d'air divisé Download PDF

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Publication number
EP2510856A2
EP2510856A2 EP12163854A EP12163854A EP2510856A2 EP 2510856 A2 EP2510856 A2 EP 2510856A2 EP 12163854 A EP12163854 A EP 12163854A EP 12163854 A EP12163854 A EP 12163854A EP 2510856 A2 EP2510856 A2 EP 2510856A2
Authority
EP
European Patent Office
Prior art keywords
air flow
vacuum cleaner
flow channel
luftströmungsumlenkabschnitt
partition wall
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
Application number
EP12163854A
Other languages
German (de)
English (en)
Other versions
EP2510856B1 (fr
EP2510856A3 (fr
Inventor
Markus Kraus
André Michaelis
Patrick Sell
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2510856A2 publication Critical patent/EP2510856A2/fr
Publication of EP2510856A3 publication Critical patent/EP2510856A3/fr
Application granted granted Critical
Publication of EP2510856B1 publication Critical patent/EP2510856B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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

Definitions

  • the present invention relates to a vacuum cleaner having an air flow passage and a first Luftströmungsumschabites adjacent to the air flow passage in which the air flow is deflected by a deflection angle from a plane of the flow channel.
  • the publication DE3311494A1 discloses a vacuum cleaner, in whose housing a flat, U-shaped air duct is installed.
  • the channel is fitted in a recess formed in the outer surface of the vacuum cleaner housing so as to protrude partially outward.
  • the air duct at one end of its outlet opening have a curved wall portion which is harmoniously adapted to the curved in the same way Lucasleitrippen the housing L predominantly videllyslasses.
  • SC16 a bagless vacuum cleaner, in which an air duct with a substantially rectangular cross section is divided by three partitions into four separate sub-channels. In arranged at the entrance and at the exit of this channel deflecting sections entering or exiting air is diverted by about 90 °.
  • a vacuum cleaner with a filter housing having an air flow passage and a filter cavity with a filter inserted therein.
  • the airflow passage is divided by one or more walls into a plurality of separate, elongate channels.
  • the channels are to the filter cavity open and there are adjacent to the filter. As a result, air entering through the inlet channels is deflected in the direction of the filter.
  • the publication EP 1 929 914 A2 discloses a vacuum cleaner with a fan downstream filter.
  • the filter is mounted in a housing on the narrow edges of a plurality of parallel webs, which form between them channels through which the exiting air from the filter and out of the vacuum cleaner is deflected.
  • the invention has for its object to provide an improved vacuum cleaner with an air flow passage and an adjoining the air flow passage shipsströmungsumschabites in which the air flow is deflected by a deflection angle from a plane of the flow channel to provide.
  • flow noise and the flow resistance should be kept low.
  • the vacuum cleaner should also be easy and inexpensive to manufacture.
  • the partition wall of the air flow channel in the cover of the vacuum cleaner housing may lead to a harmonization of the guided through the channel air in the sense that the air flows through the channel substantially laminar.
  • vortex formation in the air flow deflection section can be counteracted, with the result that the Air flow also has a higher laminarity here.
  • the reduced vortex formation can result in significant noise reduction.
  • the flow resistance can be reduced, so that a larger amount of air can be promoted, which in turn has a positive effect on the dust absorption of the vacuum cleaner.
  • a vacuum cleaner is an electrical energy powered device for receiving dust, including both mains powered and battery powered devices.
  • a vacuum cleaner may e.g. a motor-blower unit for generating a suction air flow, a nozzle for collecting dust, a suction air guide for guiding the suction air flow, a Staubabscheideech and a filter.
  • a Staubabscheidetician is a device that removes dust-laden suction air from the dust.
  • the Staubabscheideisme may for example contain a dust bag or it may be formed as a vortex separator, which can be dispensed with a dust bag.
  • a dust collection unit may also include a filter to retain dust from the dust-laden air.
  • the filter may e.g. be designed as an exchangeable cartridge filter.
  • a plane of the air flow channel is a plane in which the flow channel extends.
  • the flow channel does not necessarily have to be straight. If it is curved, the plane of the flow channel is necessarily the plane of that curvature.
  • the air flow diverting portion directs the flow out of the plane of the air flow channel. Therefore, in a straight air flow passage, each plane of the variety of planes through which the air flow passage passes can be regarded as the plane of the air flow passage except for the plane parallel to the deflection of the air flow turning section (that is, parallel to the turning angle of the air flow turning section).
  • the Luftströmungsumschites can basically be in the flow direction before or after the air flow channel.
  • deflected does not necessarily mean that it is deflected out of the plane of the air flow channel, especially in the flow direction.
  • deflected in the case of an air flow deflecting section upstream of the air flow duct, it is deflected out of this plane in the direction opposite to the flow.
  • deflected means merely that the direction of the air flow at that of the air flow channel remote end of the Heilströmungsumschabitess is not in the plane of the air flow passage.
  • a preferred air flow channel is subdivided into two parallel sub-channels by exactly one partition wall, which measures substantially the entire cross-section of the air flow channel.
  • the partition at least partially projects into the first Luftströmungsumschabites.
  • a flow with particularly high laminarity is achievable.
  • further partition walls slow down the flow rather than increase its laminarity.
  • embodiments of the invention are of course conceivable in which several, in particular e.g. two, three or four partitions are provided which then channel e.g. divide into three, four or five subchannels.
  • the Luftströmungsumschabsacrificing upstream of the air flow passage in the flow direction that is, the air enters via the Luftströmungsumschabsacrificing in the air flow passage.
  • the Heilumlenkabsacrificing downstream of the air flow channel in the flow direction that is, the air exits through the Heilströmungsumschabites from the air flow channel.
  • the partition according to the invention can have a positive effect on the flow path. In particular, vortex can be avoided and thus the laminarity of the flow can be increased. As a result, flow noise can advantageously be reduced and the flow resistance reduced.
  • the vacuum cleaner comprises, in addition to a first Luftströmungsumschabêt, which is upstream of the air flow channel in the flow direction, a second Heilströmungsumschabrough downstream of the air flow channel in the flow direction.
  • the second air flow diverting portion directs the airflow out of a plane of the air flow channel by a deflection angle.
  • the partition wall or one of the plurality of partitions also extends at least partially into the second air flow deflection section.
  • those embodiments should also be included, in which a different partition wall protrudes into the second air flow deflection section than into the first air flow deflection section.
  • the flow-harmonizing properties of the partition wall can be utilized both on the side on which the flow is introduced into the air flow channel and on the side on which the air flows out of the flow channel. As a result, a particularly favorable flow and thus a particularly high noise reduction and flow resistance reduction can be achieved.
  • a preferred partition lies in a plane which runs parallel to the deflection of the air flow in the first and / or second Heilströmungsumschabites.
  • the partition wall is parallel to a plane in which the deflection angle of the Heilströmungsumschabitess lies. This makes it possible to achieve a particularly favorable flow profile in the air flow deflection section, which is particularly low-vortex.
  • the partition wall divides the air flow channel into sub-channels of the same cross-sectional area dimension.
  • the size of the cross sectional area of each subchannel is the same.
  • the air flow channel is divided with a partition in exactly two sub-channels of the same cross-sectional area dimension.
  • the partition is for this purpose in a center of the air flow channel.
  • the cross-sectional areas of the subchannels are symmetrical with respect to the partition wall.
  • the invention has a particularly advantageous effect, especially with comparatively large deflection angles.
  • the invention is suitable for both acute and obtuse deflection.
  • a particularly preferred deflection angle is about 90 °.
  • the air flow in the second Heilströmungsumschabêt is deflected by a deflection angle of at least 45 °, more preferably at least 60 °.
  • the invention is also suitable here for both acute and obtuse deflection.
  • a particularly preferred deflection angle of the second Lucasströmungsumschites is about 90 °.
  • the first and the second deflection angle lie in a common plane.
  • the deflection angles lie in different planes.
  • the air is diverted C-shaped through the air flow passage and the two air flow diverting sections, i. the ends of the deflection sections lie on the same side of the flow channel.
  • the air flow through the air flow passage and the turning sections is deflected in an S shape, i. E. the ends of the turn portions lie on opposite sides with respect to the air flow passage.
  • the preferred partition passes through the air flow channel over its entire length. Preferably, it traverses the entire cross section of the channel over the entire length of the air flow channel.
  • the air flow channel is preferably substantially straight. By a straight air flow channel, the air flow can be advantageously conducted particularly low-vortex.
  • at least one of the partition walls, particularly preferably all partition walls in the air flow channel preferably extend substantially straight along the longitudinal extent of the air flow channel. This also makes it possible to avoid vortex formation in the channel particularly well, which can contribute to a particularly strong noise reduction and a particularly strong reduction of flow losses.
  • the partition wall extends or extends the partition walls extending from the air flow passage in the first Luftströmungsumschabêt / s straight in the Luftströmungsumschabêt. Furthermore, the or runs the partitions that extend from the air flow channel in the second Heilströmungsumschabêt / en also straight in the airflow section. As a result, a particularly favorable flow can also be achieved in the first and / or second air flow deflection section.
  • One or more of the partition walls extending into the first air flow diverting section are preferably attached to the wall of the air flow diverting section on at least one side.
  • One or more of the partition walls extending into the second air flow diverting section are preferably attached to the wall of the air flow diverting section on at least one side. This too can contribute to a particularly favorable flow course in the first and / or second Heilströmungsumschabêt.
  • the preferred air flow passage including the first air flow turning portion forms part of the suction air passage of the vacuum cleaner.
  • Fig. 1 is a vacuum cleaner 1 with a motor-blower unit (not shown) for generating a suction air flow to see.
  • the vacuum cleaner has inside a dust chamber (not shown), in which a Staubabscheideech can be accommodated. Further, the vacuum cleaner on a nozzle also not shown for dust pickup and a Saugluft arrangement for guiding the suction air flow from the nozzle to Staubabscheideappel.
  • the Staubabscheidetician is upstream of the motor-blower unit of the vacuum cleaner with respect to the direction of the suction air flow. It serves to separate the dust from the dust-laden suction air of the suction air flow.
  • the input side has a first 5 and the output side, a second Heilströmungsumschabites 6.
  • the dust-laden air in the normal operating position flows approximately vertically upwards into the first Heilströmungsumschabêt 5 and is there in the lid 3 to the rear of the vacuum cleaner 1 running air flow channel 4 approximately horizontally forwarded, finally to the second Heilströmungsumschabites 6, where it is directed approximately vertically down into the dust collector of the vacuum cleaner 1 into it.
  • the air flow channel 4 is divided along its entire length exactly centered by a partition wall 7 in two parallel sub-channels 8, 9, both of which have the same size cross-sectional areas.
  • the partition wall 7 also extends beyond the duct 4 into both the front 5 and the rear air flow diverting sections 6. As in Fig. 4 can be clearly seen, the partition wall 7 extends in the air flow channel 4 over the entire height of the channel 4, so that the two sub-channels 8, 9 are completely separated from each other.
  • the wall 7 extends like a web from the inner surface 12, 13 opposite the opening 10, 11 of the air flow deflecting section 5, 6 in the direction of this opening 10, 11.
  • the partition wall 7 extends perpendicular to normal use position of the vacuum cleaner 1 and thus in particular in the same plane as the angle by which the air in the Vietnameseströmungsumschabêten 5, 6 is deflected. In particular, this can be an undesirable obstacle effect of the partition 7 are minimized for the flowing past her air.
  • the partition 7 extends straight within the straight air flow channel 4 and also extends straight into the two Heilströmungsumschabête5, 6th
  • the cover consists of an inner 15 and a middle 16 cover part and an outer design cover 17.
  • the air flow channel 4 and the Heilströmungsumschabête 5, 6 are provided by the combination of the inner 15 and the central cover part 16.
  • the central lid portion 16 forms the in use upper end 18 of the air flow channel 4 and the Heilströmungsumschabête 5, 6.
  • the lower cover part forms the lower end 14 of the air flow channel.
  • the partition wall 7 is integrally formed as protruding from the central lid portion 16 web.
  • this web In the area of the air flow channel 4, this web has a height which corresponds exactly to the height of the air flow channel 4 when the central cover part 16 is placed on the inner cover part 15, so that the latter is completely separated by the web into two parts 8, 9.
  • In the lower lid part 15 are two circular Apertures that represent the openings 10, 11 of the first 5 and the second Heilströmungsumschabitess 6.
  • the Heilströmungsumschabitese 5, 6 deflect the air by about 90 °.
  • the deflection angle of the two Heilströmungsumschabitese 5, 6 are in a common plane, wherein the air is deflected through the air flow passage 4 and the two Heilströmungsumschabitese 5, 6 C-shaped, i. the ends of the deflection sections 5, 6 lie on the same side of the flow channel 4.
  • the wall 7 is led up to the outlet opening 11 of the deflection.
  • the first Heilströmungsumschabites 5 it extends, starting from the, the opening 10 of the Heilströmungsumschabitess 5 opposite surface 12, only about half the height in the direction of the opening 10 of the first Heilströmungsumschabitess 5.
  • the upper design cover 17 of the lid serves primarily the aesthetic design of the lid outside.
  • a closure portion 19 for a not shown in the figures, equipped with a return spring closure and locking mechanism.
  • the design cover 17 has hinge parts 20, 21, about which the cover 3 is pivotally mounted on the housing 2 to open it with a released closure. By opening the Staubabscheideisme is exposed and can be removed for emptying.
  • the present vacuum cleaner 1 is a vacuum cleaner whose separation unit is formed as Wirbelstromabscheider. Especially in such concepts is to allow a compact design of the vacuum cleaner 1, generally a deflection of the suction air flow necessary.
  • the Wirbelstromabscheider is perpendicular to the rear of the vacuum cleaner 1 and receives in its upper part on the dust-laden suction air.
  • the invention is of course also suitable for other types of vacuum cleaners, especially those in which the dust is separated by means of filter bags.
  • the inventive separation of the air flow channel 4 and the Heilströmungsumschabitese 5, 6 can flow noise and flow resistance be reduced.
  • the reduced flow resistance can have a favorable effect on the suction power.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP12163854.8A 2011-04-12 2012-04-12 Aspirateur avec canal de flux d'air divisé Active EP2510856B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011007212.8A DE102011007212B4 (de) 2011-04-12 2011-04-12 Staubsauger mit geteiltem Luftströmungskanal

Publications (3)

Publication Number Publication Date
EP2510856A2 true EP2510856A2 (fr) 2012-10-17
EP2510856A3 EP2510856A3 (fr) 2018-01-03
EP2510856B1 EP2510856B1 (fr) 2019-07-17

Family

ID=46045757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12163854.8A Active EP2510856B1 (fr) 2011-04-12 2012-04-12 Aspirateur avec canal de flux d'air divisé

Country Status (2)

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EP (1) EP2510856B1 (fr)
DE (1) DE102011007212B4 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020134579A1 (de) 2020-12-22 2022-06-23 Vorwerk & Co. Interholding Gesellschaft mit beschränkter Haftung Haushaltsgerät mit einem Gebläse und einem Strömungskanal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311494A1 (de) 1982-03-30 1983-10-20 Sharp K.K., Osaka Staubsauger
US5737797A (en) 1995-11-28 1998-04-14 Iowa State University Research Foundation, Inc. Central vacuum with acoustical damping
EP1474025B1 (fr) 2002-02-11 2006-11-29 Dyson Technology Limited Boitier de filtre
EP1929914A2 (fr) 2006-12-06 2008-06-11 Samsung Gwangju Electronics Co., Ltd. Ensemble de carter de moteur de ventilateur pour la reduction du bruit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3815320C3 (de) * 1988-05-05 1998-02-12 Aeg Hausgeraete Gmbh Staubsauger
DE10336828B4 (de) * 2003-08-11 2013-04-18 BSH Bosch und Siemens Hausgeräte GmbH Staubsauger mit Abluftströmungskanälen
US7882592B2 (en) * 2005-12-10 2011-02-08 Lg Electronics Inc. Vacuum cleaner
DE102008055150A1 (de) * 2008-12-23 2010-07-01 BSH Bosch und Siemens Hausgeräte GmbH Kälte mit einem Luftkanal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311494A1 (de) 1982-03-30 1983-10-20 Sharp K.K., Osaka Staubsauger
US5737797A (en) 1995-11-28 1998-04-14 Iowa State University Research Foundation, Inc. Central vacuum with acoustical damping
EP1474025B1 (fr) 2002-02-11 2006-11-29 Dyson Technology Limited Boitier de filtre
EP1929914A2 (fr) 2006-12-06 2008-06-11 Samsung Gwangju Electronics Co., Ltd. Ensemble de carter de moteur de ventilateur pour la reduction du bruit

Also Published As

Publication number Publication date
EP2510856B1 (fr) 2019-07-17
DE102011007212B4 (de) 2020-04-23
DE102011007212A1 (de) 2012-10-18
EP2510856A3 (fr) 2018-01-03

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