EP3790437B1 - Système de soufflage d'air pour un aspirateur à sec portable - Google Patents

Système de soufflage d'air pour un aspirateur à sec portable Download PDF

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Publication number
EP3790437B1
EP3790437B1 EP19719851.8A EP19719851A EP3790437B1 EP 3790437 B1 EP3790437 B1 EP 3790437B1 EP 19719851 A EP19719851 A EP 19719851A EP 3790437 B1 EP3790437 B1 EP 3790437B1
Authority
EP
European Patent Office
Prior art keywords
dry vacuum
vacuum cleaner
air
housing
air outlet
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.)
Active
Application number
EP19719851.8A
Other languages
German (de)
English (en)
Other versions
EP3790437A1 (fr
Inventor
Sonya Wörz
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP3790437A1 publication Critical patent/EP3790437A1/fr
Application granted granted Critical
Publication of EP3790437B1 publication Critical patent/EP3790437B1/fr
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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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/14—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum cleaning by blowing-off, also combined with suction cleaning
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/04—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids for using the exhaust air for other purposes, e.g. for distribution of chemicals in a room, for sterilisation of the air
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/24—Hand-supported suction cleaners
    • 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
    • A47L9/22—Mountings for motor fan assemblies
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/248—Parts, details or accessories of hoses or pipes

Definitions

  • the present invention relates to an air blow-out system for a dry vacuum cleaner. Suction air sucked in by the dry vacuum cleaner can be blown out to the environment as exhaust air via an air blow-out system.
  • the invention also relates to a dry vacuum cleaner with such an air blow-out system. Air blow-out systems or dry vacuum cleaners of the type mentioned at the outset are known in principle from the prior art.
  • a similar vacuum cleaner is from the JP H 013 106 24 A known.
  • the air blow-out system has a receiving bay to be arranged in a housing of the dry vacuum cleaner, in which either an air filter insert or a blow-out adapter can be accommodated, the blow-out adapter having an outlet fitting for connecting a blower hose and the air filter insert not having such an outlet fitting.
  • the air blow-out system creates the basis for a dry vacuum cleaner with which—in suction operation—suction air can be sucked in via an inlet fitting and this suction air can be blown out to the environment as exhaust air.
  • suction air can be sucked in via an inlet fitting and this suction air can be blown out to the environment as exhaust air.
  • an air filter insert is accommodated in the receiving bay provided according to the invention, the exhaust air is filtered and blown out through the air filter insert to the environment.
  • the blow-out adapter is used in the receiving bay instead of the air filter insert, a blow-out hose for blow-out operation of the dry vacuum cleaner can be connected to its outlet fitting. Suction air flowing in via the inlet fitting accordingly flows as exhaust air through the outlet fitting and any blower hose connected to it to the environment.
  • the air blow-out system according to the invention creates the basis for a dry vacuum cleaner of particularly compact design.
  • Such a dry vacuum cleaner is equipped with an air blow-out system according to the invention, the receiving bay of the air blow-out system being arranged in the housing of the dry vacuum cleaner, and the dry vacuum cleaner also having an inlet fitting designed for connecting a suction hose, which is arranged on the housing and via which the suction air in use, with the receiving bay extending across a corner of the housing.
  • dry vacuum cleaners known from the prior art can, for example, have an air outlet at their rear end of the housing, which is suitable for inserting a blower hose.
  • This allows the dry vacuum cleaner to be used as a so-called "blower".
  • the smaller the cross-sectional area of the exhaust opening the higher the exhaust air exhaust speed and thus an undesirable dust turbulence of ambient dust.
  • users or people in the vicinity of such dry vacuum cleaners can be unpleasantly "blown on”.
  • the high blow-out speed described is a problem, particularly in the case of compact dry vacuum cleaners.
  • the dry vacuum cleaner according to the invention has a receiving bay which extends over a corner of the housing. This corner positioning saves space on the housing of the dry vacuum cleaner and enables an outlet with a comparatively large flow cross section.
  • the receiving bay is designed as a diffuser. A reduction in the outflow velocity of the exhaust air can thus already be achieved.
  • At least one retaining dome can be provided in the receiving bay, to which the blow-out adapter can be fastened.
  • Two retaining domes are preferably provided within a volume of the receiving bay.
  • the blow-out adapter can have one or two plug-in or clamping pins by means of which the blow-out adapter can be fastened to the holding dome or the holding domes.
  • the blow-out adapter can be secured in the receiving bay by means of a screw connection.
  • the air filter insert has a frame with a plurality of filter openings. As a result, a linearization of the otherwise turbulent air flowing out of the receiving bay designed as a diffuser can be achieved.
  • the dry vacuum cleaner preferably has an essentially cuboid housing. It has turned out to be advantageous if the receiving bay extends over at least 25% of the total height of the housing. Preferably, the receiving bay, based on the two surface portions of the housing at the common corner, takes an approximately equal cross-sectional area. In other words, the receiving bay can be formed symmetrically over the corner of the essentially cuboid housing of the dry vacuum cleaner.
  • the dry vacuum cleaner is battery-operated.
  • the dry vacuum cleaner is particularly preferably designed to be exclusively battery-operated.
  • the dry vacuum cleaner is portable with a weight of less than 10 kg. This preferably includes the weight of an accumulator provided for operating the dry vacuum cleaner (preferably a 22-volt accumulator).
  • a preferred embodiment of a dry vacuum cleaner 100 according to the invention is 1 shown.
  • the dry vacuum cleaner 100 der 1 is designed as a compact and portable vacuum cleaner, which in this case can only be operated with a battery.
  • the battery bay 80 shown serves to accommodate a supply battery, not shown here, which preferably has a voltage of 22 V. 1 shows a rear perspective view of the dry vacuum cleaner 100.
  • the dry vacuum cleaner 100 has a housing 90 which is cuboid in the exemplary embodiment shown here.
  • an inlet fitting 10 which is used to connect a suction hose 210, which is only shown schematically here.
  • the inlet fitting 10 is located on the front of the dry vacuum cleaner 100 and is accordingly in 1 only partially visible.
  • an air blowing system 50 of the dry vacuum cleaner 100 is arranged on the opposite side of the inlet fitting 10 of the housing 90, ie in the foreground 1 .
  • the air outlet system 50 has a receiving bay 23 which is guided over a corner E (dashed vertical line indicates corner E). In other words, the receiving bay 23 extends over the corner E of the housing 90 away.
  • the receiving bay 23 extends to at least 25% of the overall height GH of the housing 90.
  • suction air SL air from the environment U is drawn in as suction air SL into the inlet fitting 10 or into the suction hose 210 connected to the inlet fitting 10 .
  • This suction air SL carries dirt particles that are separated inside the dry vacuum cleaner 100 .
  • a filter (not shown) inside the dry vacuum cleaner 100 is responsible for this.
  • the sucked-in suction air SL is then blown out to the environment U as exhaust air AL. This is done through the air blow-out system 50, more precisely through the receiving bay 23 shown here.
  • the receiving bay 23 is designed as a diffuser, so that the exiting exhaust air AL is already experiencing a reduction in speed.
  • the air discharge system 50 has two modular components, namely a discharge adapter 27 (cf. 2 ) and an air filter insert 25 (cf. 3 and 4 ).
  • a discharge adapter 27 cf. 2
  • an air filter insert 25 cf. 3 and 4
  • a holding dome 24 located within a lumen of the receiving bay 23 is used to fasten the blow-out adapter 27 via a clamping pin which corresponds to the holding dome 24 .
  • More accurate Said two retaining domes 24 are arranged in the receiving bay 23, of which only the lower one can be seen here.
  • blow-out adapter 27 now shows the dry vacuum cleaner 100, with a blow-out adapter 27 being accommodated in the air blow-out system 50.
  • the blow-out adapter 27 has an outlet fitting 29 for connecting a blow-out tube 290, shown schematically here.
  • the suction air SL sucked in via the inlet fitting 10 now exits to the environment U via the outlet fitting 29 or via the blow hose 290 to be connected to the blow-out adapter 27 .
  • blow-out adapter 27 is arranged with a precise fit in the receiving bay 23 .
  • the blow-out adapter 27 has a cylindrical opening with a stepped stop 28 .
  • a hose end 29 ′ of the blow hose 290 can be inserted with a precise fit into this opening, with the counter-stop 28 ′ coming to abut against the stop 28 of the blow-out adapter 27 .
  • the inner opening of the blow-out adapter 27 is cylindrical, corresponding to the hose end 29'.
  • a conical connection can be realized between the blow-out adapter 27 and the hose end 29'.
  • blow-out adapter 27 accommodated in the accommodation bay 23 also stretches over the corner E, taking up surface portions of the back and the side of the housing 90 of the dry vacuum cleaner 100 .
  • the blow-out adapter 27 is held securely within the receiving bay 23 via two clamping pins 26', which are inserted in the in 1 Retaining dome 24 shown engage.
  • FIG. 3 shows the dry vacuum cleaner 100, with an air filter insert 25 being accommodated in the accommodation bay 23 (covered here) of the air blow-out system 50.
  • the blow-out adapter 27 shown is the air filter insert 25 in 3 free of any outlet fitting. In other words, no blower hose or the like should be connected to the air filter insert 25 . Rather, the suction air SL sucked in by the dry vacuum cleaner exits the air filter insert 25 to the environment U as exhaust air AL. This takes place through a number of filter openings 24 ′, which are defined by a frame 24 of the air filter insert 25 .
  • the frame 24 sits together with the filter mat behind the filter openings 24' which can be seen over the corner E of the housing 90 3 can be removed, there are both filter openings 24 'on the side and on the back of the housing 90, whereby a comparatively large outflow cross-section for exhaust air AL is provided.
  • the air filter insert 25 together with the frame 24 is fastened to the housing 90 via a clip fastener 22 .
  • exhaust air AL flows backwards (out of the image plane into 4 ) and to the side (to the left in 4 ) out of the filter insert 25.
  • the total of the filter openings 24' distributed over two housing walls offer a comparatively large outflow cross section for the exhaust air AL.
  • a flow speed of the exhaust air AL is reduced as desired. Due to the fact that flow quantities of the exhaust air AL flow out both from the rear and from the side (side different from the rear), an unpleasant blowing on of users in the vicinity of the dry vacuum cleaner is significantly reduced.
  • the receiving bay 23 nestles against the battery bay 80 provided on the housing 90, as a result of which a particularly compact design of the dry vacuum cleaner 100 is ensured.

Landscapes

  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electric Suction Cleaners (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Claims (9)

  1. Système d'expulsion d'air (50) pour un aspirateur à sec portable (100), par l'intermédiaire duquel de l'air d'aspiration (SL) aspiré par l'aspirateur à sec (100) peut être expulsé vers l'environnement (U) en tant qu'air d'échappement (AL),
    caractérisé en ce que le système de sortie d'air (50) présente une baie de réception (23) destinée à être agencée dans un carter (90) de l'aspirateur à sec (100), la baie de réception (23) étant prévue pour recevoir un constituant modulaire du système d'expulsion d'air (50) et le constituant modulaire du système d'expulsion d'air (50) étant formé par un adaptateur d'expulsion (27) avec un raccord de sortie (29) pour le raccordement d'un tuyau de soufflage (290) ou par un insert de filtre à air (25) sans un tel raccord de sortie (29).
  2. Système d'expulsion d'air (50) selon la revendication 1, caractérisé en ce que la baie de réception (23) forme un diffuseur.
  3. Système d'expulsion d'air (50) selon la revendication 1 ou 2, caractérisé en ce qu'au moins un dôme de maintien (24) est prévu dans la baie de réception (23) pour la fixation de l'adaptateur d'expulsion (27).
  4. Système d'expulsion d'air (50) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'insert de filtre à air (25) présente un cadre (24) avec une pluralité d'ouvertures de filtre (24').
  5. Aspirateur à sec (100) avec un système d'expulsion d'air (50) selon l'une quelconque des revendications précédentes, dans lequel la baie de réception du système d'expulsion d'air (50) est agencée dans le carter (90) de l'aspirateur à sec (100), et l'aspirateur à sec (100) présente en outre un raccord d'entrée (10) configuré pour le raccordement d'un tuyau d'aspiration (210), qui est agencé sur le carter et par l'intermédiaire duquel l'air d'aspiration (SL) est aspiré pendant le fonctionnement, la baie de réception (23) s'étendant au-delà d'un coin (E) du carter (90).
  6. Aspirateur à sec (100) selon la revendication 5, caractérisé en ce que le carter (90) de l'aspirateur à sec (100) est configuré sous forme essentiellement parallélépipédique.
  7. Aspirateur à sec (100) selon la revendication 5 ou 6, caractérisé en ce que la baie de réception (23) s'étend au moins sur 25 pour cent de la hauteur totale (GH) du carter (90).
  8. Aspirateur à sec (100) selon l'une quelconque des revendications 5 à 7, caractérisé en ce que le raccord d'entrée (10) et la baie de réception (23) sont situés sur des côtés opposés du carter (90).
  9. Aspirateur à sec (100) selon l'une quelconque des revendications 5 à 8, caractérisé en ce que l'aspirateur à sec (100) est configuré pour fonctionner sur batterie et/ou est configuré sous forme portable avec un poids inférieur à 10 kilogrammes.
EP19719851.8A 2018-05-09 2019-04-24 Système de soufflage d'air pour un aspirateur à sec portable Active EP3790437B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18171424.7A EP3566627A1 (fr) 2018-05-09 2018-05-09 Système de soufflage d'air pour un aspirateur à sec portable
PCT/EP2019/060509 WO2019214945A1 (fr) 2018-05-09 2019-04-24 Système d'éjection d'air pour un aspirateur à poussière portatif

Publications (2)

Publication Number Publication Date
EP3790437A1 EP3790437A1 (fr) 2021-03-17
EP3790437B1 true EP3790437B1 (fr) 2023-07-12

Family

ID=62200248

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18171424.7A Withdrawn EP3566627A1 (fr) 2018-05-09 2018-05-09 Système de soufflage d'air pour un aspirateur à sec portable
EP19719851.8A Active EP3790437B1 (fr) 2018-05-09 2019-04-24 Système de soufflage d'air pour un aspirateur à sec portable

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP18171424.7A Withdrawn EP3566627A1 (fr) 2018-05-09 2018-05-09 Système de soufflage d'air pour un aspirateur à sec portable

Country Status (5)

Country Link
US (1) US11925302B2 (fr)
EP (2) EP3566627A1 (fr)
JP (1) JP2021520269A (fr)
CN (1) CN111918590B (fr)
WO (1) WO2019214945A1 (fr)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061062A (fr) * 1973-10-02 1975-05-26
US4225999A (en) * 1979-04-20 1980-10-07 Health-Mor Inc. Multi-motor suction cleaner construction
JPH01310624A (ja) * 1988-06-08 1989-12-14 Tokyo Electric Co Ltd 電気掃除機
US5606769A (en) * 1994-10-31 1997-03-04 Emerson Electric Co. Wet/dry utility vacuum cleaner with detachable blower
US6125501A (en) * 1999-01-08 2000-10-03 Yip; Chung Lun Vacuum cleaner using a sheet filter
KR100433404B1 (ko) * 2002-02-04 2004-05-31 삼성광주전자 주식회사 업라이트형 진공청소기
KR100445803B1 (ko) * 2002-02-05 2004-08-25 삼성광주전자 주식회사 업라이트형 진공청소기의 배기구조
JP2003275150A (ja) * 2002-03-26 2003-09-30 Toshiba Tec Corp 電気掃除機
CA2459028A1 (fr) * 2003-02-26 2004-08-26 Black & Decker Inc. Aspirateur portatif avec indicateur d'etat du filtre
US7418763B2 (en) * 2003-02-26 2008-09-02 Black & Decker Inc. Hand vacuum with filter indicator
US7712182B2 (en) * 2003-07-25 2010-05-11 Milwaukee Electric Tool Corporation Air flow-producing device, such as a vacuum cleaner or a blower
GB0402847D0 (en) * 2004-02-10 2004-03-17 Black & Decker Inc Filter assembly for vacuum cleaner and vacuum cleaner incorporating such assembly
US20070028413A1 (en) * 2005-08-03 2007-02-08 Fischer Richard J Upright vacuum cleaner with removable air path cover for canister assembly
KR100730944B1 (ko) * 2005-08-18 2007-06-22 주식회사 대우일렉트로닉스 진공 청소기의 배기 유로구조
CN103565350A (zh) * 2012-07-19 2014-02-12 乐金电子(天津)电器有限公司 具有吹尘装置的卧式吸尘器
JP2014097117A (ja) * 2012-11-13 2014-05-29 Makita Corp 集塵機
AU2016102017A4 (en) * 2015-12-04 2017-01-12 Bissell Inc. Cyclone module for vacuum cleaner
CA2971070A1 (fr) * 2016-01-20 2017-07-20 Jiangsu Midea Cleaning Appliances Co., Ltd. Aspirateur tenu a la main

Also Published As

Publication number Publication date
EP3566627A1 (fr) 2019-11-13
EP3790437A1 (fr) 2021-03-17
JP2021520269A (ja) 2021-08-19
US11925302B2 (en) 2024-03-12
CN111918590A (zh) 2020-11-10
WO2019214945A1 (fr) 2019-11-14
CN111918590B (zh) 2021-09-07
US20210161337A1 (en) 2021-06-03

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