US20090193612A1 - Vacuum Cleaner - Google Patents

Vacuum Cleaner Download PDF

Info

Publication number
US20090193612A1
US20090193612A1 US12/322,067 US32206709A US2009193612A1 US 20090193612 A1 US20090193612 A1 US 20090193612A1 US 32206709 A US32206709 A US 32206709A US 2009193612 A1 US2009193612 A1 US 2009193612A1
Authority
US
United States
Prior art keywords
vacuum cleaner
suction
control unit
sealing mat
air duct
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.)
Abandoned
Application number
US12/322,067
Other languages
English (en)
Inventor
Juergen Weiss
Maic Hensel
Steffen Layer
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.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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 Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Assigned to ALFRED KAERCHER GMBH & CO. KG reassignment ALFRED KAERCHER GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEISS, JUERGEN, LAYER, STEFFEN, HENSEL, MAIC
Publication of US20090193612A1 publication Critical patent/US20090193612A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • A47L9/20—Means for cleaning filters
    • 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
    • A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2889—Safety or protection devices or systems, e.g. for prevention of motor over-heating or for protection of the user

Definitions

  • the invention relates to a vacuum cleaner with a control unit and a dirt collecting container, which has a suction inlet and is in flow connection with a suction unit via a suction extraction line, the suction unit being connected to at least one air outlet via at least one air duct.
  • dirt and preferably also liquid can be sucked up using the suction unit to apply negative pressure to the dirt collecting container, so that a suction flow forms from the suction inlet through the dirt collecting container via the suction extraction line to the suction unit.
  • the air sucked in can be conducted from the suction unit via an air duct to an air outlet of the vacuum cleaner.
  • An electronic control unit is used to control the vacuum cleaner and in many cases has heat-emitting power semiconductors and/or electromechanical relays.
  • Operation of the suction unit involves the production of a certain amount of noise, which is to be kept as low as possible, and use of the electronic control unit involves the production of a certain amount of heat, which is likewise to be kept low, and in the event of excessive heat being produced it is to be ensured that heat-sensitive components of the vacuum cleaner are not damaged.
  • the invention includes the idea that the production of noise by the vacuum cleaner can be kept low by using a sound-insulating sealing mat to seal off at least one air duct leading from the suction unit.
  • the sealing mat not only makes it possible to make the air duct flow-tight, and for example to compensate for tolerances in the production of the air duct, but it also provides protection against fire in the event that the electronic control unit heats up to a high temperature.
  • the sealing mat covers the electronic control unit and is produced from a flame-retardant material.
  • the sealing mat consequently assumes a number of functions. It forms sound insulation, so that the production of noise by the vacuum cleaner is reduced. It also makes it possible for the air duct to be provided with a flow-tight seal while allowing compensation for production tolerances of the air duct. In addition, the sealing mat provides protection against fire, ensuring that the vacuum cleaner does not easily catch fire if the electronic control unit heats up to a high temperature.
  • the sealing mat can be fitted in a simple manner, so that the vacuum cleaner according to the invention can be configured in a structurally simple manner in such a way that it produces relatively little noise and has reliable fire protection.
  • the sealing mat is preferably elastically deformable. This provides the possibility of compressing the sealing mat while it is being fitted, after which it tries to resume its original shape, and thereby comes to lie against mutually adjacent walls and edges of the vacuum cleaner with a flow-tight effect.
  • the sealing mat is produced from a foamed thermosetting material.
  • Thermosets are crosslinked plastics that do not melt even at relatively high temperature.
  • the sealing mat covers the electronic control unit, so that, on account of the flame-retardant property of the sealing mat, reliable fire protection is ensured in the event of the electronic control unit heating up to a high temperature.
  • the sealing mat is produced from a foamed thermosetting material from the group of aminoplastics.
  • foamed thermosets based on PU material polyurethane material
  • the sealing mat has a thermal conductivity of less than 0.04 W/mK, in particular less than 0.035 W/mK.
  • the thermal conductivity is measured at a temperature of 10° C. and is determined in accordance with DIN standard 52612. It has been found that in the event of the electronic control unit heating up to a high temperature, a sealing mat with such a thermal conductivity value is particularly suitable for protecting the other components of the vacuum cleaner from being damaged.
  • the vacuum cleaner has a housing part with a hood which covers a separating wall part, the separating wall part having a base from which two separating walls protrude with a spacing in between, defining an air duct between them, and the sealing mat being disposed between the hood and the separating walls.
  • the separating wall part may have a U-shaped profile, which is formed by the base and the two separating walls and is covered by the hood with the sealing mat lying in between.
  • the hood can be clipped onto the separating wall part or screwed to it.
  • the sealing mat disposed between the hood and the separating wall part can compensate for production tolerances that occur.
  • the sealing mat forms a flow-tight seal for the air duct, extending not only over the air duct but also additionally over the electronic control unit of the vacuum cleaner.
  • the electronic control unit is preferably disposed laterally alongside one of the separating walls, outside the air duct. It may comprise at least one printed circuit board, on which electrical components are disposed. The printed circuit board may be fixed to the separating wall.
  • the electronic control unit is connected to at least one cooling element, for example a cooling plate, which protrudes into the air duct.
  • the separating wall on the outer side of which the electronic control unit is disposed may have an opening, through which the cooling element reaches.
  • the suction unit is covered by the sealing mat.
  • the sealing mat extends not only over the air duct and the electronic control unit but also covers the suction unit. This makes it possible to keep the production of noise by the vacuum cleaner particularly low. It is advantageous if the suction unit is disposed in an upper part of the vacuum cleaner that can be mounted on the dirt collecting container.
  • the suction unit advantageously comprises an electric motor, which is cooled by external air and is connected via a first air duct to a cooling air outlet, and comprises a suction turbine, which is driven by the electric motor and is connected via a second air duct to a suction air outlet, the sealing mat sealing off the first and second air ducts.
  • the suction turbine made to rotate by the electric motor, can be used to achieve a suction flow from the suction inlet through the dirt collecting container and the suction extraction line to the suction unit.
  • the air sucked in can be discharged to the suction air outlet of the vacuum cleaner via the second air duct.
  • the suction unit can have a considerable suction capacity. Since the sound-insulating sealing mat seals the first and second air ducts and covers the air ducts, preferably completely, the flow of the cooling air and the suction air can be optimized with regard to lowest possible production of noise by the vacuum cleaner.
  • the electronic control unit is electrically connected to at least one electromagnetic closing valve, which closes an external air inlet, it being possible for the side of a filter disposed in the flow path between the dirt collecting container and the suction unit that is oriented away from the dirt collecting container to be impinged upon by external air via the external air inlet in an impulsive manner for cleaning purposes.
  • Such a configuration makes filter backflushing possible, in order to dislodge dirt particles deposited on the side of the at least one filter that is oriented toward the dirt collecting container during suction operation.
  • the side of the filter that is oriented away from the dirt collecting container can be impinged upon by external air by the electromagnetic closing valve being opened, so that external air can flow into the suction extraction line via the external air inlet.
  • the filter cleaning is controlled by the electronic control unit, which therefore produces a not inconsiderable amount of heat.
  • the risk of components of the vacuum cleaner being damaged during inadmissible overheating of the electronic control unit is kept low by the sealing mat that is used according to the invention.
  • current can be applied by means of the control unit to an electromagnet for closing the closing valve, it being possible for the current supply to be interrupted in a time-controlled manner.
  • an excitation current is applied to the electromagnet of the closing valve by the control unit, so that a magnetic field which keeps the closing valve in its closed position is formed.
  • the excitation current is interrupted by the control unit for a short time. This has the consequence that the magnetic field of the electromagnet breaks down and, as a result, the closing valve opens. External air can then abruptly impinge upon the side of the filter that is oriented away from the dirt collecting container and, as a result, the filter can be mechanically shaken.
  • control unit can be flowed through by external air in the direction of counterflow, that is to say counter to the suction flow prevailing during normal suction operation, in order to be effectively cleaned in this way.
  • an excitation current is therefore permanently provided by the control unit. This may have the consequence that the control unit heats up considerably. Since, however, according to the invention the control unit is covered by the flame-retardant sealing mat of low thermal conductivity, there is virtually no risk of the production of heat by the control unit leading to any impairment of other parts of the vacuum cleaner.
  • FIG. 1 shows a schematic sectional view of a vacuum cleaner according to the invention
  • FIG. 2 shows a plan view of a detail of the vacuum cleaner with the hood removed
  • FIG. 3 shows a sectional view along the line 3 - 3 in FIG. 2 .
  • a vacuum cleaner 10 Schematically represented in the drawing is a vacuum cleaner 10 , with a dirt collecting container 12 , mounted on which is an upper part 14 , which accommodates a suction unit 16 .
  • the dirt collecting container 12 has a suction inlet 18 , to which a suction hose (not represented in the drawing) can be connected.
  • a suction nozzle At the free end of the suction hose, a suction nozzle may be connected.
  • the suction hose is connected to a working tool, for example a drilling unit or a milling unit, so that dust produced during the operation of the working tool can be sucked away.
  • the upper part 14 forms a suction outlet 22 for the dirt collecting container 12 .
  • a folded filter 24 held on the suction outlet 22 is a folded filter 24 , which is followed by a suction extraction line in the form of a suction channel 26 .
  • the suction channel 26 By way of the suction channel 26 , the folded filter 24 is flow-connected to the suction unit 16 .
  • the dirt collecting container 12 can be acted upon by negative pressure from the suction unit 16 via the suction channel 26 and the folded filter 24 , so that there forms a suction flow, symbolized in FIG. 1 by the arrows 28 , under the action of which dirt can be sucked into the dirt collecting container 12 .
  • the folded filter 24 the dirt particles can be separated from the suction flow 28 .
  • a closing valve 30 Disposed above the folded filter 24 in the upper part 14 is a closing valve 30 , which comprises a valve holder 32 , which is fixedly positioned in the upper part 14 , forms a valve seat and interacts with a movable valve body in the form of a circular valve disk 34 .
  • the valve disk 34 is acted upon by a closing force in the direction of the valve holder 32 by means of a closing spring 36 .
  • the closing spring 36 is restrained between a plate-like filter holder 38 , having a multiplicity of flow passages and fixedly disposed in the upper part 14 , and the valve disk 34 .
  • the valve holder 32 carries an electromagnet 40 with a magnetic coil 42 .
  • a magnetizable element associated with the electromagnet 40 in the form of an iron plate 44 , which in the closed position of the closing valve 30 lies against the end face of the electromagnet 40 .
  • an excitation current is applied to the electromagnet 40 from an electronic control unit 48 , illustrated in FIGS. 2 and 3 , via connecting lines not represented in the drawing, so that a magnetic field forms and the iron plate 44 is acted on by a magnetic holding force. If the filter 24 is to be cleaned, the current supply to the electromagnet 40 is interrupted.
  • valve disk 34 lifts off from the associated valve seat on account of the pressure difference acting on it, which is produced by the pressure of the external air fed to the closing valve 30 via a lateral opening 51 and the negative pressure prevailing in the suction channel 26 .
  • External air can consequently flow from the lateral opening 51 to the side of the filter 34 that is oriented away from the dirt collecting container 12 and impinge upon said side of the filter with a pressure surge.
  • the valve disk 34 is returned to the associated valve seat again by the closing spring 36 after only a very short time, preferably after a time of less than 0.5 s, so that the further feeding of external air can be prevented and normal suction operation resumed.
  • the electronic control unit 48 is disposed in the upper part 14 of the vacuum cleaner 10 .
  • the upper part 14 comprises a separating wall part 53 , which is formed in one piece as a plastics molding and forms a base 54 , from which an inner separating wall 55 and an outer separating wall 56 protrude upward with a spacing in between.
  • the separating walls 55 , 56 follow a labyrinthine path and on one side of the vacuum cleaner 10 form a first air duct in the form of a cooling air duct 58 , which opens out into a cooling air outlet 59 ; on the other side of the vacuum cleaner 10 , the two separating walls 55 and 56 define between them a second air duct in the form of a suction air duct 61 , which opens out into a suction air outlet 62 .
  • the suction air outlet 62 is disposed on the side of the vacuum cleaner 10 that is opposite from the cooling air outlet 59 .
  • the suction unit 16 comprises a suction turbine 64 , which is set in rotation by an electric motor 65 cooled by external air.
  • the cooling air of the electric motor 65 can be discharged to the surroundings via the cooling air duct 58 and the cooling air outlet 59 , and the suction air sucked in by the suction turbine 64 through the suction inlet 18 and the dirt collecting container 12 as well as the suction channel 26 can be discharged to the surroundings via the suction air duct 61 and the suction air outlet 62 .
  • the electronic control unit 48 comprises a number of electronic components 74 , which are disposed on a printed circuit board 76 .
  • the printed circuit board 76 is positioned on the outer side of the outer separating wall 56 .
  • a cooling element in the form of a cooling plate 72 protrudes into the cooling air duct 58 through an opening (not represented in the drawing) in the outer separating wall 56 .
  • the cooling plate 72 is connected in a heat-conducting manner to components 74 of the electronic control unit 48 and makes effective cooling of the components 74 possible.
  • the separating wall part 53 of the upper part 14 is covered by a hood 68 . This is revealed particularly clearly by FIG. 3 .
  • a sound-insulating sealing mat 70 Disposed between the separating wall part 53 and the hood 68 is a sound-insulating sealing mat 70 , which is produced from a flame-retardant material, to be specific from a foamed thermosetting material from the group of aminoplastics.
  • the sealing mat 70 extends over the suction unit 16 , the cooling air duct 58 and the suction air duct 61 , and additionally extends over the electronic control unit 48 disposed on the outer side of the outer separating wall 56 . It is elastically deformable and makes it possible in a structurally simple manner to compensate for production tolerances between the separating wall part 53 and the hood 68 .
  • FIG. 2 represents a plan view of the vacuum cleaner 10 in the region of the suction unit 16 , the hood 68 having been removed so that the position of the sealing mat 70 can be seen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Suction Cleaners (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
US12/322,067 2006-07-29 2009-01-27 Vacuum Cleaner Abandoned US20090193612A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/007543 WO2008014796A1 (fr) 2006-07-29 2006-07-29 Aspirateur

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/007543 Continuation WO2008014796A1 (fr) 2006-07-29 2006-07-29 Aspirateur

Publications (1)

Publication Number Publication Date
US20090193612A1 true US20090193612A1 (en) 2009-08-06

Family

ID=37768733

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/322,067 Abandoned US20090193612A1 (en) 2006-07-29 2009-01-27 Vacuum Cleaner

Country Status (7)

Country Link
US (1) US20090193612A1 (fr)
EP (1) EP2046181B1 (fr)
CN (1) CN101489459B (fr)
AT (1) ATE466513T1 (fr)
DE (1) DE502006006920D1 (fr)
DK (1) DK2046181T3 (fr)
WO (1) WO2008014796A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130247328A1 (en) * 2010-11-16 2013-09-26 Alfred Kärcher Gmbh & Co. Kg Vacuum cleaner
US20140123433A1 (en) * 2011-07-22 2014-05-08 Alfred-Kärcher GmbH & Co. KG Sweeping machine
US20150135475A1 (en) * 2013-11-15 2015-05-21 Nilfisk-Advance A/S Vacuum cleaner with hinged flap
JP2016195958A (ja) * 2016-09-02 2016-11-24 シャープ株式会社 電気掃除機
JP2018034038A (ja) * 2017-12-07 2018-03-08 シャープ株式会社 電気掃除機
US10376113B2 (en) * 2015-01-13 2019-08-13 Alfred Kärcher SE & Co. KG Suction device and method for operating a suction device
US10426305B2 (en) * 2015-01-13 2019-10-01 Alfred Kärcher SE & Co. KG Suction device
US11559761B2 (en) * 2017-12-14 2023-01-24 Koki Holdings Co., Ltd. Dust collector
EP4137023A1 (fr) * 2021-08-20 2023-02-22 Festool GmbH Appareil d'aspiration
JP7300581B2 (ja) 2018-11-20 2023-06-30 パナソニックＩｐマネジメント株式会社 電気掃除機

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2046182T3 (pl) 2006-07-29 2014-10-31 Kaercher Gmbh & Co Kg Alfred Odkurzacz z urządzeniem do samooczyszczania filtru
PL2046184T3 (pl) 2006-07-29 2014-06-30 Kaercher Gmbh & Co Kg Alfred Sposób czyszczenia filtrów odkurzacza oraz odkurzacz do realizacji tego sposobu
KR101333885B1 (ko) * 2008-11-05 2013-11-27 악티에볼라겟 엘렉트로룩스 진공 청소기
ES2709904T3 (es) 2009-07-07 2019-04-22 Kaercher Alfred Se & Co Kg Aparato de aspiración para fines de limpieza
WO2014094834A1 (fr) * 2012-12-18 2014-06-26 Alfred Kärcher Gmbh & Co. Kg Appareil de nettoyage de sol automoteur et autoguidé
CN105559692A (zh) * 2014-10-10 2016-05-11 江苏美的清洁电器股份有限公司 吸尘器的尘杯组件及具有它的吸尘器
DE102015100426A1 (de) * 2015-01-13 2016-07-14 Alfred Kärcher Gmbh & Co. Kg Reinigungsgerät und Verfahren zur Lärmminderung bei einem Reinigungsgerät
GB201700637D0 (en) 2017-01-13 2017-03-01 Black & Decker Inc Dust collection box
WO2019011429A1 (fr) * 2017-07-12 2019-01-17 Alfred Kärcher SE & Co. KG Appareil d'aspiration pourvu d'au moins deux filtres et procédé de fonctionnement d'un appareil d'aspiration
CN108852151A (zh) * 2018-07-21 2018-11-23 苏州欧圣电气股份有限公司 一种吸尘器

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591567A (en) * 1948-05-29 1952-04-01 Electrolux Corp Vacuum cleaner
US4124915A (en) * 1977-08-15 1978-11-14 S/V Tool Company, Inc. Combination scraper and squeegee
US4329161A (en) * 1981-05-18 1982-05-11 Jack Osborn Valve system for vacuum cleaner
US4410481A (en) * 1980-10-27 1983-10-18 Osterreichische Hiag-Werke Aktiengesellschaft Insulating plate and process for the preparation thereof
US4921510A (en) * 1984-10-03 1990-05-01 Arnold Plooy Vacuum cleaner system
US5144716A (en) * 1988-10-07 1992-09-08 Hitachi, Ltd. Electric cleaner, method for producing same and mount base and bumper for electric cleaner
US5737797A (en) * 1995-11-28 1998-04-14 Iowa State University Research Foundation, Inc. Central vacuum with acoustical damping
US6305048B1 (en) * 1999-03-03 2001-10-23 Harold Salisian Electric backpack blower and accessory operator
US6330732B1 (en) * 2000-07-19 2001-12-18 Te-Hsi Liu Dust collect device for an eraser
US20020066262A1 (en) * 2000-11-27 2002-06-06 Samsung Kwangju Electronics Co., Ltd. Cyclone dust collecting device for a vacuum cleaner
US6406505B1 (en) * 2000-08-07 2002-06-18 Samsung Kwangju Electronics Co., Ltd. Vacuum cleaner having a cyclone type dust collecting apparatus
US20020088078A1 (en) * 2001-01-10 2002-07-11 Samsung Kwangju Electronics Co., Ltd. Cyclone dust collecting apparatus for a vacuum cleaner
US20030167590A1 (en) * 2002-03-05 2003-09-11 Samsung Gwangju Electronics Co., Ltd. Vacuum cleaner with reusable filter
US20050050674A1 (en) * 2003-09-09 2005-03-10 Samsung Gwangju Electronics Co., Ltd. Vacuum cleaner
US20080086835A1 (en) * 2005-04-11 2008-04-17 Alfred Kaercher Gmbh & Co. Kg Vacuum cleaning device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0665332B2 (ja) * 1987-05-06 1994-08-24 株式会社日立製作所 電気掃除機
CN1140223C (zh) * 1993-07-16 2004-03-03 株式会社金星社 真空吸尘器的吸入力的控制装置及方法
CN2175569Y (zh) * 1993-11-17 1994-08-31 北京市海淀区康得机电技术开发公司 自动行走工业吸尘车
JPH0838401A (ja) * 1994-07-28 1996-02-13 Tec Corp 電気機器
GB9808583D0 (en) * 1998-04-22 1998-06-24 Wills James K S Apparatus for cleaning carpets and upholstery

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591567A (en) * 1948-05-29 1952-04-01 Electrolux Corp Vacuum cleaner
US4124915A (en) * 1977-08-15 1978-11-14 S/V Tool Company, Inc. Combination scraper and squeegee
US4410481A (en) * 1980-10-27 1983-10-18 Osterreichische Hiag-Werke Aktiengesellschaft Insulating plate and process for the preparation thereof
US4329161A (en) * 1981-05-18 1982-05-11 Jack Osborn Valve system for vacuum cleaner
US4921510A (en) * 1984-10-03 1990-05-01 Arnold Plooy Vacuum cleaner system
US5144716A (en) * 1988-10-07 1992-09-08 Hitachi, Ltd. Electric cleaner, method for producing same and mount base and bumper for electric cleaner
US5737797A (en) * 1995-11-28 1998-04-14 Iowa State University Research Foundation, Inc. Central vacuum with acoustical damping
US6305048B1 (en) * 1999-03-03 2001-10-23 Harold Salisian Electric backpack blower and accessory operator
US6330732B1 (en) * 2000-07-19 2001-12-18 Te-Hsi Liu Dust collect device for an eraser
US6406505B1 (en) * 2000-08-07 2002-06-18 Samsung Kwangju Electronics Co., Ltd. Vacuum cleaner having a cyclone type dust collecting apparatus
US20020066262A1 (en) * 2000-11-27 2002-06-06 Samsung Kwangju Electronics Co., Ltd. Cyclone dust collecting device for a vacuum cleaner
US6782583B2 (en) * 2000-11-27 2004-08-31 Samsung Kwangju Electronics Co., Ltd. Cyclone dust collecting device for a vacuum cleaner
US20020088078A1 (en) * 2001-01-10 2002-07-11 Samsung Kwangju Electronics Co., Ltd. Cyclone dust collecting apparatus for a vacuum cleaner
US6640385B2 (en) * 2001-01-10 2003-11-04 Samsung Kwangju Electronics Co., Ltd. Cyclone dust collecting apparatus for a vacuum cleaner
US20030167590A1 (en) * 2002-03-05 2003-09-11 Samsung Gwangju Electronics Co., Ltd. Vacuum cleaner with reusable filter
US20050050674A1 (en) * 2003-09-09 2005-03-10 Samsung Gwangju Electronics Co., Ltd. Vacuum cleaner
US20080086835A1 (en) * 2005-04-11 2008-04-17 Alfred Kaercher Gmbh & Co. Kg Vacuum cleaning device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9351620B2 (en) * 2010-11-16 2016-05-31 Alfred Kärcher Gmbh & Co. Kg Vacuum cleaner
US20130247328A1 (en) * 2010-11-16 2013-09-26 Alfred Kärcher Gmbh & Co. Kg Vacuum cleaner
US20140123433A1 (en) * 2011-07-22 2014-05-08 Alfred-Kärcher GmbH & Co. KG Sweeping machine
US9220387B2 (en) * 2011-07-22 2015-12-29 Alfred Kärcher Gmbh & Co. Kg Sweeping machine
US10045673B2 (en) * 2013-11-15 2018-08-14 Nilfisk-Advance A/S Vacuum cleaner with hinged flap
US20150135475A1 (en) * 2013-11-15 2015-05-21 Nilfisk-Advance A/S Vacuum cleaner with hinged flap
US10426305B2 (en) * 2015-01-13 2019-10-01 Alfred Kärcher SE & Co. KG Suction device
US10376113B2 (en) * 2015-01-13 2019-08-13 Alfred Kärcher SE & Co. KG Suction device and method for operating a suction device
JP2016195958A (ja) * 2016-09-02 2016-11-24 シャープ株式会社 電気掃除機
JP2018034038A (ja) * 2017-12-07 2018-03-08 シャープ株式会社 電気掃除機
US11559761B2 (en) * 2017-12-14 2023-01-24 Koki Holdings Co., Ltd. Dust collector
JP7300581B2 (ja) 2018-11-20 2023-06-30 パナソニックＩｐマネジメント株式会社 電気掃除機
EP4137023A1 (fr) * 2021-08-20 2023-02-22 Festool GmbH Appareil d'aspiration

Also Published As

Publication number Publication date
EP2046181A1 (fr) 2009-04-15
DE502006006920D1 (de) 2010-06-17
DK2046181T3 (da) 2010-07-26
ATE466513T1 (de) 2010-05-15
WO2008014796A1 (fr) 2008-02-07
CN101489459B (zh) 2011-02-09
CN101489459A (zh) 2009-07-22
EP2046181B1 (fr) 2010-05-05

Similar Documents

Publication Publication Date Title
US20090193612A1 (en) Vacuum Cleaner
CN104136860A (zh) 电气设备以及空调机
WO2006070703A1 (fr) Compresseur d’air
KR20100040749A (ko) 공기 조화기의 실내 유닛
CN207368491U (zh) 一种可自动除尘和散热的配电箱
CN1159907A (zh) 真空吸尘器功率元件的冷却布置
CN111077964B (zh) 一种基于温度监测的计算机主机箱保护装置
CN109174893A (zh) 一种机械设备防尘装置
KR101457434B1 (ko) 진공청소기
CN210074497U (zh) 一种便于除尘清洁的配电柜
WO2009034607A1 (fr) Dispositif d'entrainement de vehicule
WO2015158126A1 (fr) Dispositif de filtration d'air pour refroidisseur composite de locomotive
CN113490390A (zh) 一种安防用防尘效果的安防柜
CN109662647A (zh) 真空吸尘器
KR20060087295A (ko) 공기조화기의 전원 차단구조
JP2529381Y2 (ja) クリーンルームのクリーンユニット
CN217640101U (zh) 一种加固的抗干扰计算机机箱
CN210548835U (zh) 一种激光切割机的抽风除尘系统
KR0145964B1 (ko) 전동콤프레서 구동장치
KR100930233B1 (ko) 진공청소기의 방열구조
CN217088401U (zh) 一种用于电力工程的散热设备
JP2002315696A (ja) 電気掃除機
KR100323546B1 (ko) 진공청소기용 인쇄회로기판의 방열구조
JPH04317617A (ja) 電気掃除機
KR20090071811A (ko) 컴프레서 흡입공기용 수분제거 자동필터와 컴프레서흡입공기용 수분제거 자동필터장치

Legal Events

Date Code Title Description
AS Assignment

Owner name: ALFRED KAERCHER GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WEISS, JUERGEN;HENSEL, MAIC;LAYER, STEFFEN;REEL/FRAME:022503/0382;SIGNING DATES FROM 20090313 TO 20090318

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION