WO2014177171A1 - Buse destinée à un aspirateur et aspirateur - Google Patents

Buse destinée à un aspirateur et aspirateur Download PDF

Info

Publication number
WO2014177171A1
WO2014177171A1 PCT/EP2013/058852 EP2013058852W WO2014177171A1 WO 2014177171 A1 WO2014177171 A1 WO 2014177171A1 EP 2013058852 W EP2013058852 W EP 2013058852W WO 2014177171 A1 WO2014177171 A1 WO 2014177171A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
cleaning
temperature
rotatable member
vacuum cleaner
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.)
Ceased
Application number
PCT/EP2013/058852
Other languages
English (en)
Inventor
Henrik Eriksson
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.)
Electrolux AB
Original Assignee
Electrolux AB
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 Electrolux AB filed Critical Electrolux AB
Priority to PCT/EP2013/058852 priority Critical patent/WO2014177171A1/fr
Publication of WO2014177171A1 publication Critical patent/WO2014177171A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A47L9/02—Nozzles
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • 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
    • A47L9/2805—Parameters or conditions being sensed
    • 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
    • A47L9/2805—Parameters or conditions being sensed
    • A47L9/2831—Motor parameters, e.g. motor load or speed
    • 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 present invention relates generally to the field of vacuum cleaners. More specifically, the present invention is related to a vacuum cleaner comprising a nozzle with a rotatable brush and a cleaning arrangement for cleaning said rotatable brush.
  • WO 2009/117383 A2 discloses a cleaning nozzle for a vacuum cleaner comprising a rotary brush and one or more cleaning members for removing debris that has been wrapped around the rotary brush.
  • the cleaning members are positioned adjacent the rotary brush and are adapted to move between a resting position and a cleaning position, and are arranged to clean the rotary brush during rotation of the brush.
  • the cleaning nozzle comprises an overload mechanism which is adapted to monitor the current of an electric motor which applies a torque to the brush roll.
  • Micro- controller is used to monitor the current of the electric motor and to compare said current to a threshold value. If this threshold value is exceeded for certain period of time, the mo ⁇ tor is switched off in order to prevent damage of the motor due to high heats that will occur if the motor is operated over cer- tain period of time higher than the expected torque value.
  • a drawback of the known vacuum cleaning nozzle is that measuring the current of the motor may sometimes lead to distorted infor ⁇ mation regarding the load situation of the motor, i.e. the point of time at which the overload mechanism is activated may be in ⁇ appropriate. Accordingly, there is a need for improvements re ⁇ garding the activation of the overload mechanism.
  • the invention is intended for battery powered vacuum cleaners as well as mains-operated vacuum cleaners.
  • the nozzle according to the present invention is further envisaged for robotic vacuum cleaners .
  • the invention re- lates to a nozzle for a vacuum cleaner, the nozzle comprising
  • a rotatable member for picking up particles from a surface to be cleaned, the rotatable member being arranged around a lon ⁇ gitudinal axis and being actuated by a motor in order to ro ⁇ tate around said longitudinal axis, and
  • a cleaning arrangement for removing articles entangled to the rotatable member in a cleaning procedure comprising at least one cleaning member wherein the distance between the cleaning member and the rotatable member is variable to achieve a first state in which the cleaning member is arranged at a distance from the rotatable member and a second state in which the cleaning member, during rotation of the rotatable member, cooperates with the rotatable member in order to re ⁇ move debris from the rotatable member,
  • the nozzle comprises at least one sensor element adapted to detect the temperature of at least one nozzle element in or ⁇ der to avoid an overload situation during the cleaning procedure .
  • the nozzle element may be the rotatable member, the cleaning member, the motor applying a torque to the rotatable member or any other nozzle element which is heated during the cleaning procedure.
  • the sensor element it is possible to ac ⁇ curately determine the temperature of said nozzle element thereby deriving information regarding the thermal load of said nozzle element.
  • the information may be used to control or inter ⁇ rupt the cleaning procedure if the thermal load exceeds a prede- fined threshold. Thereby a more accurate detection of an over ⁇ load situation is achieved.
  • the sensor element is a tem ⁇ perature sensor being located on or integrated in the housing of the motor.
  • the motor is heated by means of the electric power consumed by the electric motor in order to apply the necessary torque to the rotatable member of the nozzle.
  • the temperature sensor may generate a signal depending on the tem- perature of the motor. Said signal may be used to detect an overload situation which may damage the motor.
  • the sensor element is a tem ⁇ perature sensor being located on or integrated in the cleaning member. Also the cleaning member is exposed to thermal load dur ⁇ ing the cleaning procedure.
  • the temperature sensor monitoring the temperature of the cleaning member it is possible to determine not only the load of the cleaning member but also the load of the electric motor powering the rotatable member of the nozzle thereby effecting the heating of the cleaning member.
  • the heating of the cleaning member is coupled with the load of the motor and therefore may be used to detect an overload situation.
  • the nozzle comprises at least two sensor elements which are adapted to measure the tem ⁇ perature of different nozzle elements, e.g. the motor and the cleaning member.
  • the signals generated by the two sensor ele ⁇ ments are provided to an electric overload detection circuit wherein the determination of an overload situation within the electric overload detection circuit is based on both signals.
  • the sensor element comprises a resistor varying its resistance value as a function of the re ⁇ sistor temperature.
  • the temperature sensor may be a resistor with a negative temperature coefficient (NTC) or with a positive temperature coefficient (PTC) .
  • NTC negative temperature coefficient
  • PTC positive temperature coefficient
  • the resistor may be applied with a fixed electric current, wherein the voltage across the resis ⁇ tor corresponds to the temperature of the resistor. Thereby a cost-effective measurement of the temperature of the nozzle ele ⁇ ment may be provided.
  • the sensor element is ther ⁇ mally conductively connected to the nozzle element.
  • the thermal coupling between the nozzle element and the sensor ele ⁇ ment is optimized.
  • a heat-transfer paste or ther- mally conductive paste may be used to connect the sensor element with the nozzle element.
  • the sensor element is a tem ⁇ perature sensor being spatially separated from the nozzle ele- ment and adapted for remote sensing the temperature of said noz ⁇ zle element.
  • the temperature sensor may comprise a sensing area adapted to receive thermal radiation of the nozzle element to be monitored thereby deriving a signal correlated to the tempera ⁇ ture of the nozzle element. Said signal may be used in the over- load detection circuit for detecting an overload situation.
  • the remote-sensing sensor element there is no need for a coupling of the nozzle element to be monitored and the sensor element, so, also the temperature of fast moving noz ⁇ zle elements, for example rotatable members like the brush roll may be temperature monitored.
  • the sensor element is a thermal infrared sensor. Thereby the terminal radiation in the infrared range may be monitored.
  • the sensor element is con ⁇ nected to an overload detection circuit adapted to receive and analyse a signal value associated with or proportional to the temperature of the nozzle element provided by the sensor ele ⁇ ment.
  • the overload detection circuit may be integrated in the nozzle or the nozzle comprises an interface for providing the signal value to another part of the vacuum cleaner which comprises said overload detection circuit. By means of said over ⁇ load detection circuit the signal value provided by the sensor element is analysed in order to decide whether an overload situation occurred.
  • the invention relates to a vacuum cleaner comprising a nozzle configured according to an embodiment described above.
  • the vacuum cleaner may com ⁇ prise an overload detection circuit adapted to receive a signal value associated with or proportional to the temperature of the nozzle element.
  • the overload detection circuit may be assembled within an upper housing of the vacuum cleaner and coupled via electrical lines with the nozzle in order to receive information correlated to the temperature of the nozzle element.
  • the overload detection cir- cuit is adapted to compare the signal value associated with or proportional to the temperature with a threshold value defining the threshold between normal cleaning operation and an overload situation. If the temperature is below the threshold value there is no risk of a damage of the motor or another nozzle element due to overheating. However, if the temperature is equal to or rises above said threshold value, the cleaning operation has to be terminated in order to avoid a damage of the vacuum cleaner nozzle .
  • the detection circuit is operatively connected to a power switching module adapted to terminate the operation of the motor if the signal value associ ⁇ ated with or proportional to the temperature exceeds the thresh ⁇ old value in order to avoid a damage of nozzle.
  • the invention relates to a method for determining an overload situation during a cleaning procedure of a vacuum cleaner, the vacuum cleaner comprising
  • the signal value associated with or proportional to the temperature of at least one nozzle element is measured directly on or in the nozzle element using a sensor element attached to or integrated in the nozzle element.
  • the nozzle element is thermally coupled with the sensor element in order to transfer the heat to the sensor ele- ment. Thereby a cost-effective measurement of the temperature of the nozzle element is provided.
  • the signal value associated with or proportional to the temperature of at least one nozzle ele ⁇ ment is measured indirectly using a remote sensor element which is spatially separated from the nozzle element.
  • a remote sensor enables the monitoring of the temperature of a moving element, e.g. the brush roll, in order to use the temperature information of said moving element for detecting an overload situation .
  • Fig. 1 shows a vacuum cleaner with a nozzle comprising a ro- tatable brush roll
  • Fig. 2 shows a vacuum cleaner with a nozzle comprising a ro- tatable brush roll
  • Fig. 3 shows a rotatable brush roll and a cleaning member being positioned in a resting position
  • Fig. 4 shows a rotatable brush roll, a cleaning member being positioned in a cleaning position and a motor comprising a temperature sensor;
  • Fig. 5 shows a rotatable brush roll, a cleaning member being po- sitioned in a cleaning position and a temperature sensor located on the cleaning member;
  • Fig. 6 shows a rotatable brush roll, a cleaning member being positioned in a cleaning position and a remote-sensing temperature sensor for analysing the temperature of the brush roll.
  • Fig. 1 illustrates a vacuum cleaner 2 comprising a nozzle 1 provided with a rotatable member 3 for picking up particles from a surface to be cleaned.
  • the rotatable member 3, also referred to as brush roll is drivingly coupled to a motor 20 (not shown in Fig. 1) .
  • the motor 20 may be an electric motor, i.e. an AC or DC motor.
  • the nozzle 1 is further provided with a cleaning arrangement for removing articles entangled to the rotatable member 3.
  • Said ar ⁇ ticles may be debris that has been wrapped around the rotatable member 3, e.g. threads, lint, hairs or any other fibrous mate- rial.
  • the user may initiate the cleaning procedure of the ro ⁇ tatable member 3 by pushing a push button 6 on the nozzle 1 thereby engaging the cleaning arrangement.
  • Fig. 2 - 6 show the nozzle 1 or parts of the nozzle 1 of the vacuum cleaner 2 more in detail.
  • the cleaning arrangement comprises a cleaning member 5 being movable between a resting position in which the cleaning member 5 is arranged at a distance from the rotatable member 3 and a cleaning position in which the cleaning member is in contact with the rotatable member 3.
  • the rotatable member 3 may comprise a support surface 4 provided on a radially projecting member 8 of the rotatable member 3.
  • two projecting members 8 are helically arranged along a longitudinal axis of the ro- tatable member 3.
  • Other possible alternatives may be a single helically arranged projecting member 8, or more than two heli ⁇ cally arranged projecting members 8.
  • the cleaning position may be arranged stepwise or gradually, thus enabling the cleaning member 5 to approach the support surface 4 during cleaning action. This might be advantageous for example if a thick layer of entangled articles are present, or if the power available for driving the rotatable member 3 is limited.
  • a resilient sheet member 7 of the cleaning member 5 cooperates with the support surface 4 during rotation of the rotatable member 3 to remove any entangled articles from the rotatable member 3.
  • the resilient sheet member 7 is capable of providing a resilient contact with the support surface 4 in the cleaning position during rotation of the rotatable member 3.
  • the cleaning arrangement works as follows.
  • the cleaning member 5 will interact and apply pressure on a support surface 4 provided on the rotatable member 3 provided in the nozzle 1 of a vacuum cleaner.
  • the motor fan of the vacuum cleaner is also turned on.
  • the support surface 4 is the only area of the brush roll, apart from the bristles, that will be in contact with the cleaning member 5 during a cleaning process.
  • the entire support surface 4 will have been in contact with the cleaning member 5 and therefore will any entangled article be exposed to the cleaning interac ⁇ tion in between these parts. Entangled articles will get torn into smaller pieces by the tearing, or friction, caused by the cleaning member 5 at the support surface.
  • These torn articles may be separated from the brush roll by the airflow of the vac ⁇ uum cleaner in combination with centrifugal force due to the ro ⁇ tational movement of the brush roll and will end up in the dust container or dust bag of the vacuum cleaner.
  • the rotating member cleaning performance is dependent on the rotational speed of the rotating member 3 and the pressure imposed by the clean ⁇ ing member 5, respectively, the resilient sheet member 7 upon the rotating member 3.
  • An increase of the cleaning performance of the rotating member 3 is directly coupled with an increase of the load of the motor 20 powering the rotating member 3.
  • the motor may be powered at maximum load.
  • the nozzle 1 In order to prevent damage to the motor 20 or other parts of the nozzle 1, there may be at least one sensor element 30 within the nozzle 1 which is adapted to determine the thermal load of at least one nozzle element which is getting heated during cleaning procedure.
  • the sensor element 30 may continuously or periodi ⁇ cally derive a signal value associated with or proportional to the temperature of the nozzle element thereby measuring the thermal load of said nozzle element.
  • the nozzle 1 or the vacuum cleaner 2 may comprise an electric overload detection circuit which is adapted to receive the signal value associated with or proportional to the temperature of the nozzle element and com ⁇ pare said signal value to a threshold value.
  • the threshold value is associated with a maximum thermal load, said nozzle element is able to tolerate.
  • the overload detecting circuit may be adapted to control the electric power supply of the motor 20.
  • the power supply line of the motor 20 may be interrupted if the threshold value has been exceeded thereby switching off the electric motor 20.
  • the electric overload detec ⁇ tion circuit is configured to detect the temperature of the noz ⁇ zle element by means of the temperature sensor and configured to terminate the operation of the electric motor 20 if said temper- ature of the nozzle element rises above a certain level which is pre-defined by the threshold value.
  • the overload de ⁇ tection circuit is only operational during the cleaning proce ⁇ dure and deactivated during normal operation of the vacuum cleaner 2.
  • the sensor element 30 is a temperature sensor which is located on or integrated in the nozzle element which tempera ⁇ ture is being monitored.
  • the nozzle element is the motor 20 and the temperature sensor is placed on or in the hous- ing of the motor 20 (Fig. 3, 4) .
  • the temperature sensor is placed on or in the cleaning member 5 (Fig. 5) or the resilient sheet member 7. The temperature of the cleaning member 5 or the resilient sheet member 7 is indicative for the load of the motor 20, because the friction between the rotatable member 3, e.g.
  • the brush roll and the cleaning member 5 or the resilient sheet member 7 is generating the heat at said cleaning member 5, respectively, the resilient sheet member 7, wherein the electrical power consumed by the motor 20 is propor ⁇ tional to said friction. Therefore, there is direct relationship between the temperature of the cleaning member 5 or the resili ⁇ ent sheet member 7 and the load of the motor 20.
  • the sensor element 30 may be formed by a temperature dependent resistor.
  • the resistor may be configured to vary its resistance value according to the temperature of the resistor.
  • the sensor element 30 may be thermally conductively connected to the nozzle element, e.g. via the heat-conductive paste.
  • the sensor element 30 may be a remote-sensing temperature sensor which is spatially separated from the nozzle element (Fig. 6) .
  • the re ⁇ mote-sensing temperature sensor may have a sensing area adapted to receive thermal radiation of the nozzle element and adapted to generate a signal being dependent, e.g. proportional to the received thermal radiation. Thereby it is possible to determine the temperature of moving nozzle elements, e.g. the rotatable brush roll.
  • the remote-sensing temperature sensor may be any sensor being adapted to determine the temperature of the nozzle element remotely, preferably a thermal infrared sensor.
  • the cleaning procedure may only take a short period of time in comparison to normal operation of the vacuum cleaner 2, e.g. 10- 60 sec, preferably 20-40 sec. Therefore it is possible to oper ⁇ ate the electric motor 20 at a higher electric power compared to normal operation.
  • the sensor element 30 is configured to generate a signal value associated with or proportional to the temperature of at least one nozzle element which is getting heated during the cleaning procedure.
  • the nozzle element may be, for example, the rotating member 3, the cleaning member 5, respectively, the resilient sheet member 7 or the motor 20 itself.
  • the signal value may be an electric current value or on electric voltage value. Said signal value may be provided to an electric overload load detec ⁇ tion circuit.
  • the signal value may be compared to a threshold value indicating a maximum temperature of the nozzle element which should not be exceeded to avoid a damage of the vacuum cleaner 2, respectively, the nozzle 1.
  • the overload detection circuit may be operatively con ⁇ nected to an electric power switching module which is adapted to interrupt the power supply of the electric motor 20 in order to terminate the operation of said motor 20, if the threshold value has been exceeded.
  • the temperature of the nozzle element may be measured directly at or in said nozzle element by means of a temperature sensor attached or integrated in said nozzle element.
  • the temperature sensor may be a remote-sensing temperature sen ⁇ sor, i.e. the temperature is measured indirectly by detecting the thermal radiation caused by the nozzle element to be moni ⁇ tored. Thereby it's possible to gather the temperature of moving nozzle elements e.g. the rotatable member 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)

Abstract

La présente invention concerne une buse (1) destinée à un aspirateur (2), la buse (1) comprenant - un élément rotatif (3) permettant de prélever des particules depuis une surface devant être nettoyée, l'élément rotatif (3) étant agencé autour d'un axe longitudinal (10) et étant actionné par un moteur (20) dans le but de tourner autour dudit axe longitudinal (10) et - un agencement de nettoyage permettant de retirer des articles entremêlés dans l'élément rotatif (3) dans une procédure de nettoyage comprenant au moins un élément de nettoyage (5), la distance comprise entre l'élément de nettoyage (5) et l'élément rotatif (3) étant variable pour obtenir un premier état dans lequel l'élément de nettoyage est agencé à une certaine distance de l'élément rotatif (3) et un second état dans lequel l'élément de nettoyage (5), pendant la rotation de l'élément rotatif (3), coopère avec l'élément rotatif (3) dans le but de retirer les débris provenant de l'élément rotatif (3), la buse (1) comprenant un élément de détection (30) conçu pour détecter la température d'au moins un élément de buse dans le but d'éviter une situation de surcharge lors de la procédure de nettoyage.
PCT/EP2013/058852 2013-04-29 2013-04-29 Buse destinée à un aspirateur et aspirateur Ceased WO2014177171A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/058852 WO2014177171A1 (fr) 2013-04-29 2013-04-29 Buse destinée à un aspirateur et aspirateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/058852 WO2014177171A1 (fr) 2013-04-29 2013-04-29 Buse destinée à un aspirateur et aspirateur

Publications (1)

Publication Number Publication Date
WO2014177171A1 true WO2014177171A1 (fr) 2014-11-06

Family

ID=48190515

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/058852 Ceased WO2014177171A1 (fr) 2013-04-29 2013-04-29 Buse destinée à un aspirateur et aspirateur

Country Status (1)

Country Link
WO (1) WO2014177171A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105747984A (zh) * 2016-03-14 2016-07-13 江苏美的清洁电器股份有限公司 擦窗机器人及其控制方法
US11647878B2 (en) 2019-11-13 2023-05-16 Emerson Electric Co. Vacuum cleaner motor assemblies and methods of operating same
US11826009B2 (en) 2017-12-12 2023-11-28 Dyson Technology Limited Cleaner head for a vacuum cleaner
US12245736B2 (en) 2019-06-03 2025-03-11 Dyson Technology Limited Cleaner head for a vacuum cleaner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0947155A2 (fr) * 1998-04-03 1999-10-06 Matsushita Electric Industrial Co., Ltd. Système de brosse rotative et aspirateur utilisant un tel système
US6351872B1 (en) * 1999-07-16 2002-03-05 Matsushita Electric Corporation Of America Agitator motor projection system for vacuum cleaner
JP2003014547A (ja) * 2001-07-04 2003-01-15 Nec Tokin Corp 温度差検出装置
US20050235452A1 (en) * 2004-04-26 2005-10-27 Panasonic Corporation Of North America Thermal protection system for electrical appliance
EP1656874A2 (fr) * 2004-11-12 2006-05-17 Matsushita Electrical Industrial Co., Ltd Aspirateur avec sécurité thermique du moteur
WO2009117383A2 (fr) 2008-03-17 2009-09-24 Electrolux Home Care Products, Inc. Agitateur doté de fonctionnalités de nettoyage
EP2543301A1 (fr) * 2011-07-05 2013-01-09 Samsung Electronics Co., Ltd. Aspirateur vertical

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0947155A2 (fr) * 1998-04-03 1999-10-06 Matsushita Electric Industrial Co., Ltd. Système de brosse rotative et aspirateur utilisant un tel système
US6351872B1 (en) * 1999-07-16 2002-03-05 Matsushita Electric Corporation Of America Agitator motor projection system for vacuum cleaner
JP2003014547A (ja) * 2001-07-04 2003-01-15 Nec Tokin Corp 温度差検出装置
US20050235452A1 (en) * 2004-04-26 2005-10-27 Panasonic Corporation Of North America Thermal protection system for electrical appliance
EP1656874A2 (fr) * 2004-11-12 2006-05-17 Matsushita Electrical Industrial Co., Ltd Aspirateur avec sécurité thermique du moteur
WO2009117383A2 (fr) 2008-03-17 2009-09-24 Electrolux Home Care Products, Inc. Agitateur doté de fonctionnalités de nettoyage
EP2543301A1 (fr) * 2011-07-05 2013-01-09 Samsung Electronics Co., Ltd. Aspirateur vertical

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105747984A (zh) * 2016-03-14 2016-07-13 江苏美的清洁电器股份有限公司 擦窗机器人及其控制方法
US11826009B2 (en) 2017-12-12 2023-11-28 Dyson Technology Limited Cleaner head for a vacuum cleaner
US12245736B2 (en) 2019-06-03 2025-03-11 Dyson Technology Limited Cleaner head for a vacuum cleaner
US11647878B2 (en) 2019-11-13 2023-05-16 Emerson Electric Co. Vacuum cleaner motor assemblies and methods of operating same
US11672390B2 (en) 2019-11-13 2023-06-13 Emerson Electric Co. Vacuum cleaner motor assemblies and methods of operating same

Similar Documents

Publication Publication Date Title
WO2014177171A1 (fr) Buse destinée à un aspirateur et aspirateur
US20090126220A1 (en) Method for detecting the standstill of a drum in a tumble dryer, and tumble dryer which is suitable for this purpose
EP2991533B1 (fr) Nettoyeur d'agitateur pour aspirateur à commande de puissance
JP2005516666A5 (fr)
CN106416588B (zh) 打草机及其控制方法
CN118266800A (zh) 清洁系统的控制方法、清洁系统、存储介质及计算机程序产品
JP2017080410A (ja) 掃除機及び掃除機の動作方法
CN111188177A (zh) 具有加速度传感器的洗涤物烘干机及其运行方法
CN109406115A (zh) 水垢检测方法及液体加热设备
BR112018076916B1 (pt) Produto de uso pessoal destinado ao consumidor com conjunto de circuitos de controle térmico e métodos do mesmo
EP1656874A2 (fr) Aspirateur avec sécurité thermique du moteur
US20180292443A1 (en) Leakage current protection device
CA2505332C (fr) Systeme de protection thermique pour appareil electromenager
CN209073542U (zh) 一种温度自调节组件及包括该组件的碳加热烟草抽吸装置
JP2012217787A (ja) 電気掃除機
CA3231179A1 (en) Particulate removal system for laundry drying appliances
JP2013226287A (ja) 電気掃除機
CN109406116A (zh) 水垢检测方法及液体加热设备
KR200484147Y1 (ko) 헤어 롤러 와인더
CN113491478A (zh) 一种吸尘器的控制方法及吸尘器
JP2011172747A (ja) 電気掃除機
CN111579109A (zh) 一种精细化电炒茶机温度监测系统及方法
CN214678790U (zh) 一种电机保护电路以及吸尘器地刷和吸尘器
US20040231400A1 (en) Method and apparatus for detecting accumulation of particulate matter from a flowing air stream
CN119423629A (zh) 刷头模块、清洁机及清洁机的工作方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13718852

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13718852

Country of ref document: EP

Kind code of ref document: A1