EP3614876B1 - Fön mit geschwindigkeitsregelung - Google Patents

Fön mit geschwindigkeitsregelung Download PDF

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Publication number
EP3614876B1
EP3614876B1 EP18713286.5A EP18713286A EP3614876B1 EP 3614876 B1 EP3614876 B1 EP 3614876B1 EP 18713286 A EP18713286 A EP 18713286A EP 3614876 B1 EP3614876 B1 EP 3614876B1
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EP
European Patent Office
Prior art keywords
hair dryer
fan
dryer according
air outlet
accessory
Prior art date
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Active
Application number
EP18713286.5A
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English (en)
French (fr)
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EP3614876B2 (de
EP3614876A1 (de
Inventor
Olivier Smal
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.)
Babyliss Faco SPRL
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Babyliss Faco SPRL
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Publication date
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Application filed by Babyliss Faco SPRL filed Critical Babyliss Faco SPRL
Publication of EP3614876A1 publication Critical patent/EP3614876A1/de
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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands

Definitions

  • the present invention relates to a hair dryer allowing the adaptation of the air flow by automatically compensating for the pressure drop due to a reduction in the outlet section driven by an accessory mounted on the outlet of the hair dryer.
  • Hairdryers are often equipped with means for controlling and adjusting parameters of the air blown by the device, such as speed, flow rate or temperature. Airflow and / or temperature are generally selected by the user.
  • hair dryers comprising adjustment means allowing the automatic modification of parameters, without the intervention of the user.
  • the document US 5,790,749 discloses a hair dryer comprising a mechanism for measuring the radiation emitted by the hair.
  • This hair dryer also includes a control mechanism which acts jointly on air flow and temperature to regulate the flow of hot air during drying based on measurements of the radiation emitted by the hair.
  • the document WO 2012/076885 illustrates a hair dryer which includes a fan and regulating means automatically controlling the operation of the fan so as to maintain, at least substantially, a constant air flow volume during use.
  • the document CN103349418 describes a hair dryer capable of automatically adjusting the air flow.
  • the hair dryer includes modules to capture humidity, store and compare data, control and change the speed of the air flow.
  • the document US 2006/0098962 discloses a hair dryer comprising a microprocessor controlled by software to receive a set of information measured by sensors, such as temperature, pressure, motor rotational speed, motor current consumption and heating resistor, ...
  • the microprocessor is programmed to continuously check the data, but also to adjust these data in relation to control variables.
  • the document DE102007047647 discloses a hair dryer which adapts the fan speed according to the accessory placed on the air outlet of the housing.
  • the present invention aims to overcome the drawbacks of the state of the art, and in particular to provide a hair dryer adapting the air flow as a function of the accessory mounted on its outlet mouth.
  • the hair dryers can be provided with various accessories, such as nozzles, diffusers, brushes or combs making it possible to carry out the shaping of the hairstyle. These accessories generally obstruct the air outlet and change the effective section of the outlet of the hair dryer.
  • the present invention offers a simple solution for adapting the air flow according to the accessory mounted on the device.
  • FIG. 2 An example of a hair dryer 1 according to the invention is illustrated on Figure 2 .
  • This includes a box 2 fitted with a handle 3. Like all hair dryers, it can be fitted with a hairdressing accessory, mounted on the air outlet 5.
  • accessory is meant an element removably attached to the air outlet of the hair dryer, making it possible to shape the hairstyle, such as nozzles, diffusers, brushes or combs. These accessories change the effective section of the outlet, which increases the resistance to air flow and therefore also changes the air flow of the hair dryer.
  • nozzles such as nozzles, diffusers, brushes or combs.
  • the box of the hair dryer contains a fan 6 designed to suck the air inside the box and make it circulate between the air inlet 4 and the air outlet 5. Before its exit , the air sucked in is heated by heating elements 9, such as a heating resistor, thanks to its passage through them.
  • the fan 6 is actuated by a motor 7.
  • the motor 7 is a brushless type motor, managed by a microprocessor 8 making it possible to adapt the speed of the fan 6 when the current consumption of the motor 7 is modified.
  • the hair dryer of the invention comprises a microprocessor 8 controlling the brushless motor 7 making it possible to adapt the speed of the fan 6 when the current consumption (intensity) of the motor 7 is amended.
  • the microprocessor therefore allows an adaptation of the air flow according to the accessory mounted on the air outlet.
  • the microprocessor adapts the speed, in order to increase the speed of rotation of the fan to compensate for the decrease in the outgoing air flow.
  • the increase in fan speed is of course suitable between certain limits, and in particular between a high limit and a low limit, preferably over a range from 2000 to 6000 revolutions per minute, particularly preferably over a range from from 3000 to 5000 revolutions per minute.
  • the motor speed is 21,000 revolutions per minute when no accessory is provided, and is increased to reach 24,000 revolutions per minute when the accessory is mounted on the hair dryer.
  • the first step is to measure the current intensity of the motor 7.As soon as the motor speed is stabilized, the current intensity is continuously measured by the microprocessor in order to detect a drop or an increase in this intensity. As soon as an accessory is added to the hair dryer, the current consumed by the motor decreases. When this intensity drops below a certain critical threshold (called “Low threshold” - Figure 8 ), the microprocessor detects that an accessory is placed on the hair dryer. The motor therefore reacts accordingly and increases its speed in order to compensate for the loss of flow due to the use of the accessory and therefore to the reduction in the effective section of the air outlet 5. Once high speed has been reached , the current is continuously measured again.
  • a certain critical threshold called “Low threshold” - Figure 8
  • the intensity - unlike previously - increases slightly.
  • the microprocessor considers that the accessory is removed from the hair dryer.
  • the engine therefore reacts accordingly and slows down in order to return to its initial speed without any accessories.
  • the current is measured again in order to detect the addition of an accessory.
  • the drop in air flow is limited to a maximum of 45%, preferably 40%, particularly preferably 35%.
  • the hair dryer shown in Figure 3 is fitted with a nozzle 11 having a minimum air outlet section of 290mm 2 , while the same hair dryer, without accessories, has an air outlet with a section of 1000mm 2 .
  • minimum section of the air outlet is understood to mean the section calculated at the level of the narrowest passage of the nozzle, this section being a section parallel to the outlet mouth 5 of the fan. In this case, this means that the section of the air outlet is reduced by 71% when the accessory is mounted on the device.
  • a hair dryer of the prior art which does not include air flow slaving to the section of the outlet mouth, will have at least a flow reduction of about 71%, without taking into account of the additional reduction due to the pressure drop.
  • the minimum air outlet section of the nozzle 11 is 558 mm 2 , which means that the section reduction is 44%.
  • a prior art hair dryer will have a minimum flow reduction of about 44%, regardless of the additional decrease due to pressure drop.
  • the drop in air flow of a hair dryer according to the invention is compensated for at least 20%, preferably 30%, particularly preferably 50%. In the example illustrated by the graph of the Figure 7 , the drop in air flow is compensated by 31%.
  • the fan 6 has a hybrid configuration, with both a radial component and an axial component (“mixed flow” type fan).
  • the housing of the hair dryer includes a removable silencer.
  • the silencer generally includes one or more noise attenuation elements (open cell foam, etc.).
  • the hair dryer according to the invention also comprises an ion generator, making it possible to generate a flow of ions at the air outlet of the hair dryer.
  • the user can choose to activate or not this ion generator thanks to a control button located on the handle of the device.
  • the handle can include multiple activation switches.
  • the first switch activates the hair dryer motor while the second activates the ion generator.
  • a switch can also be provided for the heating element, which allows the use of the hair dryer without heat, in "cold" mode.
  • the hair dryer does not need a temperature selector, since the temperature of the outgoing stream is substantially constant, when the heating elements 9 are activated.
  • substantially meant that the temperature does not vary more than plus or minus 10 ° C, preferably 5 ° C. Indeed, given that the air flow is adapted thanks to the microprocessor, the heating elements do not need to have different heating powers. A single heating power is sufficient to ensure a substantially constant temperature, and the hair dryer is therefore devoid of manual temperature regulation.
  • Hair dryer, heating elements and ion generator on / off lights can be provided on the device handle.

Landscapes

  • Cleaning And Drying Hair (AREA)

Claims (10)

  1. Haartrockner (1), der Folgendes umfasst:
    - ein Gehäuse (2) mit einer Lufteinlassöffnung (4) und einer Luftauslassöffnung (5);
    - einen Griff (3);
    - ein Gebläse (6);
    - einen Motor ohne Bürste (7), der erlaubt, das Gebläse (6) zu betätigen;
    - einen Mikroprozessor (8), der erlaubt, den Motor ohne Bürste (7) zu steuern;
    dadurch gekennzeichnet, dass der Mikroprozessor (8) in Verwendung die Geschwindigkeit des Gebläses (6) abhängig vom Zubehör, das auf dem Luftauslass des Gehäuses (2) angeordnet ist, einstellt, um automatisch den Druckverlust auszugleichen, der auf eine von dem Zubehör verursachte Verringerung des Querschnitts der Luftauslassöffnung (5) zurückzuführen ist.
  2. Haartrockner nach Anspruch 1, dadurch gekennzeichnet, dass die Geschwindigkeit des Gebläses (6) abhängig von der gemessenen Stärke des von dem Motor (7) verbrauchten Stroms eingestellt wird.
  3. Haartrockner nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Stromstärke abhängig vom Querschnitt des auf der Luftauslassöffnung (5) angeordneten Zubehörs (11) schwankt.
  4. Haartrockner nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Geschwindigkeit des Gebläses (6) infolge eines Abfalls der Stromstärke zunimmt und infolge einer Erhöhung der Stromstärke des Motors (7) abnimmt.
  5. Haartrockner nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Temperatur des aus dem Haartrockner (1) austretenden Luftstroms im Wesentlichen konstant bleibt, wobei der Haartrockner keine manuelle Temperaturregelung besitzt.
  6. Haartrockner nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (2) einen abnehmbaren Schalldämpfer (10) umfasst.
  7. Haartrockner nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Erhöhung der Geschwindigkeit des Gebläses (6) zwischen einer oberen Grenze und einer unteren Grenze, vorzugsweise in einem Bereich von 2000 bis 6000 Umdrehungen pro Minute, besonders bevorzugt in einem Bereich von 3000 bis 5000 Umdrehungen pro Minute, eingestellt ist.
  8. Haartrockner nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass er einen lonenerzeuger umfasst.
  9. Haartrockner nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Gebläse (6) eine hybride Schaufelkonfiguration mit einer radialen Komponente und einer axialen Komponente umfasst.
  10. Haartrockner nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Abfall des Volumenstroms mindestens in Höhe von 20 %, vorzugsweise 35 %, besonders bevorzugt 50 %, ausgeglichen wird.
EP18713286.5A 2017-04-27 2018-03-30 Fön mit geschwindigkeitsregelung Active EP3614876B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17168488 2017-04-27
PCT/EP2018/058328 WO2018197158A1 (fr) 2017-04-27 2018-03-30 Seche-cheveux avec asservissement de la vitesse

Publications (3)

Publication Number Publication Date
EP3614876A1 EP3614876A1 (de) 2020-03-04
EP3614876B1 true EP3614876B1 (de) 2021-02-24
EP3614876B2 EP3614876B2 (de) 2023-10-18

Family

ID=58638789

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18713286.5A Active EP3614876B2 (de) 2017-04-27 2018-03-30 Fön mit geschwindigkeitsregelung

Country Status (4)

Country Link
EP (1) EP3614876B2 (de)
CN (1) CN110520009B (de)
ES (1) ES2863461T3 (de)
WO (1) WO2018197158A1 (de)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54161454A (en) 1978-06-10 1979-12-21 Hitachi Ltd Hair drier
US4258408A (en) 1978-05-22 1981-03-24 Fiap S.R.L. Device for neutralizing electrostatic charges
US4972065A (en) 1989-02-17 1990-11-20 Robert Krups Stiftung & Co. Kg. Portable electric hair dryer with detachable nozzle
DE19835791A1 (de) 1997-08-07 1999-02-11 Wella Ag Handgerät zum Trocknen von Haar mittels Warmluft
US20060213074A1 (en) 2005-03-25 2006-09-28 Matsushita Electric Works, Ltd. Hair dryer
EP1834540A1 (de) 2006-03-17 2007-09-19 Giovanni Gandolfo Elektronisch gesteuertes System mit geringer energetischer Wirkung für das gleichzeitige Trocknen und Formen des Haars und dazugehöriges Bauschema und Benutzungsarten
WO2009047082A1 (de) 2007-10-05 2009-04-16 BSH Bosch und Siemens Hausgeräte GmbH Haarpflegegerät mit transponder
GB2469138A (en) 2009-04-04 2010-10-06 Dyson Technology Ltd Control of a high speed brushless motor to provide constant power
WO2015112840A1 (en) 2014-01-23 2015-07-30 Conair Corporation Hair dryer apparatus with noise reducing end cap
WO2017187128A2 (en) 2016-04-26 2017-11-02 Dyson Technology Limited A method for controlling an electric motor
EP2648565B1 (de) 2010-12-08 2019-02-20 Jemella Limited Haartrockner

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2033616U (zh) * 1988-04-14 1989-03-08 周志通 全自动控制烘干机
DE69527671T9 (de) 1994-04-27 2004-09-09 Koninklijke Philips Electronics N.V. Haartrockner mit geregeltem Luftstrom
GB9410133D0 (en) * 1994-05-20 1994-07-06 Pifco Ltd A hairdryer
FR2817450B1 (fr) * 2000-12-06 2003-02-14 Seb Sa Seche-cheveux a dispositif de variation de la section de sortie du flux d'air
AR047033A1 (es) 2004-11-05 2006-01-04 Duna Entpr Sa Secador de pelo de tipo manual programable con funciones multiples
FR2892278B1 (fr) * 2005-10-25 2007-11-30 Seb Sa Seche-cheveux comportant un dispositif permettant de modifier la geometrie du flux d'air
RU2694334C1 (ru) * 2012-07-04 2019-07-11 Дайсон Текнолоджи Лимитед Фен и насадка для ручного прибора
CN103251196A (zh) * 2013-04-26 2013-08-21 房凤梅 一种自动吹风机
CN103349418A (zh) 2013-06-17 2013-10-16 张秀云 一种可以自动调节风力大小的吹风机

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258408A (en) 1978-05-22 1981-03-24 Fiap S.R.L. Device for neutralizing electrostatic charges
JPS54161454A (en) 1978-06-10 1979-12-21 Hitachi Ltd Hair drier
US4972065A (en) 1989-02-17 1990-11-20 Robert Krups Stiftung & Co. Kg. Portable electric hair dryer with detachable nozzle
DE19835791A1 (de) 1997-08-07 1999-02-11 Wella Ag Handgerät zum Trocknen von Haar mittels Warmluft
US20060213074A1 (en) 2005-03-25 2006-09-28 Matsushita Electric Works, Ltd. Hair dryer
EP1834540A1 (de) 2006-03-17 2007-09-19 Giovanni Gandolfo Elektronisch gesteuertes System mit geringer energetischer Wirkung für das gleichzeitige Trocknen und Formen des Haars und dazugehöriges Bauschema und Benutzungsarten
WO2009047082A1 (de) 2007-10-05 2009-04-16 BSH Bosch und Siemens Hausgeräte GmbH Haarpflegegerät mit transponder
GB2469138A (en) 2009-04-04 2010-10-06 Dyson Technology Ltd Control of a high speed brushless motor to provide constant power
EP2648565B1 (de) 2010-12-08 2019-02-20 Jemella Limited Haartrockner
WO2015112840A1 (en) 2014-01-23 2015-07-30 Conair Corporation Hair dryer apparatus with noise reducing end cap
WO2017187128A2 (en) 2016-04-26 2017-11-02 Dyson Technology Limited A method for controlling an electric motor

Also Published As

Publication number Publication date
EP3614876B2 (de) 2023-10-18
WO2018197158A1 (fr) 2018-11-01
CN110520009A (zh) 2019-11-29
CN110520009B (zh) 2022-07-29
ES2863461T3 (es) 2021-10-11
EP3614876A1 (de) 2020-03-04

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