EP3893691B1 - Dispositif de coiffage - Google Patents

Dispositif de coiffage Download PDF

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Publication number
EP3893691B1
EP3893691B1 EP19835248.6A EP19835248A EP3893691B1 EP 3893691 B1 EP3893691 B1 EP 3893691B1 EP 19835248 A EP19835248 A EP 19835248A EP 3893691 B1 EP3893691 B1 EP 3893691B1
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EP
European Patent Office
Prior art keywords
temperature
hair
styling operation
styling
heating plate
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
EP19835248.6A
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German (de)
English (en)
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EP3893691A1 (fr
Inventor
Chuen Yu Cyrus PANG
Martina HOLZMANN
Ype Bernardus Brada
Petrus Johannes Bremer
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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Publication of EP3893691A1 publication Critical patent/EP3893691A1/fr
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Classifications

    • 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
    • A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A45D1/06—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with two or more jaws
    • 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
    • A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
    • A45D1/28—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for controlling or indicating the temperature
    • 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
    • A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
    • A45D2/001—Hair straightening appliances
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications

Definitions

  • Embodiments of the present disclosure relate to hair styling devices or appliances.
  • EP2272391A1 discloses an automated hair care process.
  • the hair treatment device has a heating unit, which is heated on an initial temperature.
  • the temperature is controlled by a temperature controller.
  • a sensor is arranged at the hair treatment device for measuring the data.
  • WO2017100229A1 discloses a hair styling apparatus, in which a first arm has a heating element and a contact plate heatable by the heating element and having a hair-contact surface. At least one temperature sensor is configured to sense a temperature of the heating element. A controller is operable to determine whether the hair styling apparatus is in an opened position or a closed position and is communicatively coupled to the at least one temperature sensor. The controller is operable to control the temperature of the heating element by: when the hair styling apparatus is in its closed position, energizing the heating element when the sensed temperature falls below a first threshold temperature, and when the hair styling apparatus is in its opened position, energizing the heating element when the sensed temperature falls below a second threshold temperature. The second threshold temperature is higher than the first threshold temperature.
  • Tensile stress measures the tensile strength properties and is used in hair care and cosmetics industry to measure effects of topical application, chemical treatment, or the like.
  • the tensile strength properties are correlated with cortical properties and are not so much related to the cuticle. This measurement allows understand if the core is damaged by heat, chemical and so on. However, this requires a specific device for measurement.
  • example embodiments of the present disclosure provide methods and devices for hair styling.
  • a method of operating a device for hair styling comprises in response to detecting a change in an open/close state of arms of the device, identifying a current styling operation; determining a variation in temperature of hair between the current styling operation and a previous styling operation; and determining, based on the variation in temperature of hair, a count that the device has operated on a same strand of hair, to thereby control the hair styling.
  • the method can provide a count of strokes on the same strand of hair during hair styling by recording hair temperature and counting the amount of times the device is opened and closed. In this way, the operator can learn the hair condition based on the count of strokes.
  • identifying the current styling operation comprises: in response to detecting that the arms are opened, determining that the previous styling operation ends and the current styling operation starts; and in response to detecting that the arms are subsequently opened, determining that the current styling operation ends.
  • determining the variation in temperature comprises: determining a first average temperature of hair during the previous styling operation; determining a second average temperature of hair during the current styling operation; and determining a difference between the second average temperature and the first average temperature.
  • the average temperature is a more stable measure of the hair temperature, although other characteristic temperature can also be used.
  • determining the count comprises: in response to the variation indicating an increase in temperature from the previous styling operation to the current styling operation, incrementing the count; and in response to the variation not indicating an increase in temperature from the previous styling operation to the current styling operation, resetting the count to one.
  • the method further comprises in response to the count exceeding a predetermined threshold, turning off at least one heater of the device; and/or providing at least one of a visual or audible indication of the count.
  • a device for hair styling comprises a first arm; second arm coupled to the first arm; a temperature sensor configured to sense a temperature of hair and output a temperature signal indicative of the sensed temperature of hair; a state sensor configured to detect whether the first and second arms are opened or closed and output a state signal indicative of an open/close state of the first and second arms; and a controller configured to: receive the temperature signal from the temperature sensor and the state signal from the state sensor; in response to detecting a change in the open/close state of the first and second arms, identify a current styling operation; determine a variation in the temperature of hair between the current styling operation and a previous styling operation; and determine, based on the variation in the temperature of hair, a count that the device has operated on a same strand of hair, to thereby control the hair styling.
  • the controller is configured to identify the current styling operation by: in response to detecting that the first and second arms are opened, determining that the previous styling operation ends and the current styling operation starts; and in response to detecting that the first and second arms are subsequently opened, determining that the current styling operation ends.
  • the controller is configured to determine the variation in the temperature of hair by: determining a first average temperature of hair during the previous styling operation; determining a second average temperature of hair during the current styling operation; and determining a difference between the second average temperature and the first average temperature.
  • the controller is configured to determine the count by: in response to the variation indicating an increase in temperature from the previous styling operation to the current styling operation, incrementing the count; and in response to the variation not indicating an increase in temperature from the previous styling operation to the current styling operation, resetting the count to one.
  • the controller is further configured to: in response to the count exceeding a predetermined threshold, turning off at least one heater of the device; and/or providing at least one of a visual or audible indication of the count.
  • the device further comprises a first heating plate disposed on a surface of the first arm; and a second heating plate disposed on a surface of the second arm opposite to the first heating plate.
  • the temperature sensor comprises a first contactless temperature sensor arranged on the second arm having a field of view facing the first arm and configured to measure a temperature of an object within the field of view and/or a second contactless temperature sensor arranged on the first arm having a field of view facing the second arm and configured to measure a temperature of an object within the field of view.
  • the temperature of the object such as hair can be measured in a direct way, which facilitates a more accurate assessment of hair condition and control of the device.
  • the temperature sensor is disposed in an aperture in the second heating plate. In this way, the device can take full advantage of its space, which facilitates miniaturization of the device.
  • the temperature sensor comprises an infrared temperature sensor with an optical window for receiving infrared light and facing the first arm.
  • the temperature sensor is arranged on a periphery of the first heating plate, and wherein the first heating plate comprises at least one slit between the temperature sensor and a central portion of the first heating plate to isolate the temperature sensor from the central portion of the first heating plate; and/or the temperature sensor is arranged on a periphery of the second heating plate, and wherein the second heating plate comprises at least one slit between the temperature sensor and a central portion of the second heating plate to isolate the temperature sensor from the central portion of the second heating plate. In this way, the sensor may not be affected by the heat generated by the heaters or heating plates.
  • the term “includes” and its variants are to be read as open terms that mean “includes, but is not limited to.”
  • the term “based on” is to be read as “based at least in part on.”
  • the term “one embodiment” and “an embodiment” are to be read as “at least one embodiment.”
  • the term “another embodiment” is to be read as “at least one other embodiment.”
  • Other definitions, explicit and implicit, may be included below.
  • Fig. 1 is a block diagram illustrating a hair styling device 10 in accordance with embodiments of the present disclosure.
  • the hair styling appliance may be a hair straightener, a hair curler, a curling wand or a crimping iron.
  • the hair styling device 10 includes a first arm 30 and a second arm 32, which may be coupled to the first arm 30 by a hinge at a respective end of the arms.
  • the arm can also be called a jaw or a clamping member.
  • a first heater 12 may be arranged in the first arm 30 and a second heater 14 may be arranged in the second arm 32. It is to be understood that the first and second heaters 12 and 14 are provided for illustrative purpose only and there may be more or less heaters in the hair styling device 10.
  • the hair styling device 10 includes a temperature sensor 22 that can sense a hair temperature and output a temperature signal indicative of the sensed hair temperature.
  • the temperature sensor 22 may be arranged on either of the arms 30 and 32. In addition, more than one temperature sensor 22 can be provided in the hair styling device 10.
  • the hair styling device 10 includes a state sensor 28 that can detect whether the arms 30 and 32 are opened or closed and output a state signal indicative of an open/close state of the arms 30 and 32.
  • the state sensor 28 can be a switch, for example.
  • the hair styling device 10 includes a controller 24 that receives the temperature signal from the temperature sensor 22 and the state signal from the state sensor 28. If a change in the open/close state of the arms is detected, the controller can identify a current styling operation. The styling operation may also be called a stroke.
  • a previous styling operation ends and the current styling operation starts. Then, if the arms 30 and 32 are closed and opened again, the current styling operation ends and a new subsequent styling operation may start.
  • the controller 24 can determine a variation or change in the hair temperature sensed by the temperature sensor 22 from stroke to stroke. For example, the controller 24 can determine the change in the hair temperature from the previous stroke to the current stroke. Then, the controller 24 can determine a count that the hair styling device 10 has operated on a same strand of hair based on the variation in the hair temperature, thereby controlling the hair styling.
  • the hair temperature can be an average temperature of hair during the stroke or styling operation. In this way, the variation in the hair temperature is indicated by the change in the average temperature from stroke to stroke. It is to be understood that any other suitable characteristic temperature can be used, for example, a maximum temperature during the stroke.
  • the controller 24 can increment the count if the variation indicates an increase in temperature from the previous stroke to the current stroke. Otherwise, the controller 24 can reset the count to one. In other words, if the temperature increases from stroke to stroke, the count of strokes increment and the current stroke is applied to the same strand of hair as the previous stroke. If the temperature does not increase from stroke to stroke, the count of strokes resets to one and the current stroke is applied to a new strand of hair.
  • the controller 24 may turn off the heaters 12 and/or 14. In this way, the strand of hair will not be damaged. Additionally or alternatively, the controller 24 may provide a visual and/or audible indication of the count. In this way, the user can learn the actual count of the strokes and the hair condition. Then the user can decide whether to proceed with the same strand of hair.
  • the temperature sensor is mounted inside the heating plate, usually next to the heater. During the stabilizing state, the temperature of the actual heating plate outer surface is unknown.
  • the controller uses the heating plate's internal temperature with an offset temperature to approximate the heating plate surface temperature. This method is prone to variations such as the distance between the sensor and the heating plate, the tolerance of heating element's power output, the ambient temperature, the material density's tolerance, and assembly quality, which all could affect the accuracy of the approximation, resulting in the heating plate outer surface not matching the user selected temperature target.
  • FIG. 2 and 3 An example hair straightener in accordance with embodiments of the present disclosure will now be described in detail with reference to Figs. 2 and 3 .
  • Directional terminology such as “top”, “bottom”, “front”, “back”, “leading”, “trailing”, etc., is used with reference to the orientation of the Figure(s) being described. Because components of embodiments described herein can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration only and is in no way limiting.
  • Figs. 2 and 3 show an example configuration of a hair straightener 10 according to an example embodiment of the present disclosure, in which Fig. 1 shows a cross-sectional view of the hair straightener 10 and Fig. 2 shows a perspective view of the hair straightener 10. It is to be understood that the configuration of the hair straightener 10 can also be applied to any other suitable hair styling devices such as a hair curler.
  • the hair straightener 10 includes a first arm 30 with a first heating plate 18 on its inner surface.
  • the hair straightener 10 further includes a second arm 32 that is coupled to the first arm 30 by a hinge 26. In this way, the first and second arms 30 and 32 can be opened and closed to allow styling operation of a hair strand.
  • the hair straightener 10 can be operated in an open state in which the arms 30 and 32 are opened and a closed state in which the two arms 30 and 32 are closed.
  • the open state it is desirable to stabilize the temperature of the outer surface of the heating plate 18 to a target temperature defined by the user.
  • the closed state it is desirable to raise the temperature of the hair to the desired styling temperature for the shortest amount of time without causing the hair to overheat.
  • the temperature of the heating plate 18 can be measured in the open state and the temperature of the hair can be measured in the closed state.
  • the second arm 32 is provided with a contactless temperature sensor 22.
  • the contactless temperature sensor 22 has a field of view facing the first heating plate 18 and measures the temperature of the object within the field of view.
  • the active surface of the contactless temperature sensor 22 is exposed on the surface of the second arm 32.
  • the contactless temperature sensor 22 can measure the temperature of the first heating plate 18.
  • the closed state a strand of hair is sandwiched between the arms 30 and 32, and the contactless temperature sensor 22 can measure the temperature of the strand of hair. Because the temperature sensor 22 can directly sense the temperature of the surface of the heating plate and the hair strand, the accuracy of temperature measurement can be substantially improved.
  • the contactless temperature sensor 22 may be an infrared temperature sensor that includes an optical window for receiving infrared light, the optical window facing the first heating plate 18.
  • the contactless temperature sensor 22 is described in connection with an infrared optical sensor herein, it is to be understood that any suitable temperature sensor currently known or to developed in the future may be used, for example, a contactless temperature sensor, an optical sensor, or a thermistor.
  • the first arm 30 may be provided with a first heater 12 for heating the first heating plate 18, and the first heater 12 may be disposed within the first heating plate 18, for example, around the first heating plate 18 to improve the heating effect.
  • the first heater 12 may also be disposed on a surface of the first heating plate 18.
  • the second arm 32 may be provided with a second heating plate 20 on its inner surface opposite the first heating plate 18.
  • the contactless temperature sensor 22 may be disposed in an aperture in the second heating plate 20. The aperture can also penetrate at least partially through the heater 14.
  • temperature sensor 22 may also be disposed at any other suitable locations of the second arm 32.
  • the second arm 32 may be provided with a second heater 14 for heating the second heating plate 20, and the second heater 14 may be disposed within the second heating plate 20.
  • a temperature sensor (not shown) may be similarly disposed within the first heating plate 18.
  • the controller 24 can be configured to receive a temperature signal from the contactless temperature sensor 22 and to adjust at least of power and heating time of the first heater 12 and/or the second heater 14 based on the temperature signal.
  • controller 24 may receive a temperature signal from the temperature sensor 22, calculate a suitable heater output, and generate an output signal to control the power and heating time of the heaters 12 and 14.
  • the heat generated by the heaters will affect the temperature of the hair in the closed state, or the surface temperature of the heating plates in the open state.
  • the temperature sensor 22 can periodically perform temperature measurements and controller 24 can generate the control signal based on the periodic temperature measurements. This duty cycle can continue until the hair straightener 10 is turned off.
  • the temperature sensor 22 may measure the temperature of heating plates 18 and/or 20, and controller 24 may adjust the power of first heater 12 and/or second heater 14 based on the measured temperature, so as to control the temperature of the heating plates 18 and/or 20 to a predetermined temperature or a predetermined temperature range.
  • the temperature sensor 22 measures the temperature of the hair, and controller 24 can adjust the power of the first heater 12 and/or second heater 14 to control the temperature of the hair to a predetermined temperature. For example, in each stroke, the temperature sensor 22 measures the hair strand. The controller 24 can use the temperature signal of the temperature sensor 22 to control the output of the heater to raise the hair temperature until the hair temperature reaches a predetermined temperature at which the hair will not be permanently damaged.
  • the controller 24 can also control the heating time of the first heater 12 and/or the second heater 14. For example, in the open state, when the measured hair temperature exceeds a predetermined hair temperature limit, the controller 24 can turn off the heaters to prevent thermal damage to the hair. In some embodiments, if determining that the hair temperature will exceed a predetermined hair temperature limit, the controller 24 can turn off the heaters to reduce heat transfer to the hair and prevent thermal damage to the hair.
  • the temperature sensor 22 can periodically measure the temperature signal, and controller 24 can predict the trend of hair temperature based on the temperature signal sensed by temperature sensor 22 to determine if the hair temperature will exceed the predetermined hair temperature limit.
  • the state sensor 28 may be implemented by a switch configured to detect whether the first and second arms 30 and 32 are in a closed/open state, and outputting a state signal indicative of an open/close state of the arms 30 and 32.
  • the controller 24 may receive the status signal from state sensor 28 and adjust at least one of the power and heating time of first heater 12 and/or second heater 14 based on the status signal and the temperature signal from the temperature sensor 22. For example, the controller 24 may calculate a suitable heater output based on the status signal and the temperature signal and generate an output signal to control the power of the heaters and/ or the like.
  • Figs. 4a and 4b are front and back views of a heating plate in a hair straightener in accordance with embodiments of the present disclosure.
  • the heating plate can be one or both of the heating plates of a hair straightener or other hair styling device.
  • the temperature sensor 22 is arranged on a periphery of the heating plate and the heating plate includes a slit 42 between the temperature sensor 22 and the central portion of the heating plate. In this way, the heat produced by the heater can be isolated from the temperature sensor 22 to avoid thermal damage.
  • the temperature sensor 22 can be a thermistor or contactless temperature sensor such as an infrared temperature sensor.
  • Fig. 5 is a flowchart illustrating a method 50 of operating a hair styling device in accordance with embodiments of the present disclosure. It is to be understood that the method 500 can be used in the device 10 or any other suitable hair styling device.
  • a current styling operation is identified.
  • identifying the current styling operation comprises: in response to detecting that the arms are opened, determining that the previous styling operation ends and the current styling operation starts; and in response to detecting that the arms are subsequently opened, determining that the current styling operation ends.
  • a variation in temperature of hair between the current styling operation and a previous styling operation is determined.
  • determining the variation in temperature comprises: determining a first average temperature during the previous styling operation; determining a second average temperature during the current styling operation; and determining a difference between the second average temperature and the first average temperature.
  • a count that the device has operated on a same strand of hair is determined based on the variation in temperature of hair, to thereby control the hair styling.
  • determining the count comprises: in response to the variation indicating an increase in temperature from the previous styling operation to the current styling operation, incrementing the count; and in response to the variation not indicating an increase in temperature from the previous styling operation to the current styling operation, resetting the count to one.
  • the method 50 further comprises in response to the count exceeding a predetermined threshold, turning off a heater of the device; and/or providing at least one of a visual or audible indication of the count.

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  • Hair Curling (AREA)
  • Cleaning And Drying Hair (AREA)

Claims (15)

  1. Procédé (50) de fonctionnement d'un dispositif de coiffage, le procédé étant caractérisé en ce qu'il comprend:
    en réponse à la détection d'un changement dans un état ouvert/fermé des bras du dispositif, l'identification (52) d'une intervention de coiffure en cours;
    la détermination (54) d'une variation de la température des cheveux entre l'intervention de coiffure en cours et une intervention de coiffure précédente; et
    la détermination (56), sur la base de la variation de la température des cheveux, d'un décompte du nombre de fois que le dispositif a fonctionné sur une même mèche de cheveux, pour ainsi contrôler la coiffure des cheveux.
  2. Procédé (50) selon la revendication 1, dans lequel l'identification (52) de l'intervention de coiffure en cours comprend: en réponse à la détection que les bras sont ouverts, la détermination que l'intervention de coiffure précédente se termine et que l'intervention de coiffure actuelle commence; et
    en réponse à la détection de l'ouverture ultérieure des bras, la détermination de la fin de l'intervention de coiffure en cours.
  3. Procédé (50) selon l'une quelconque des revendications précédentes, dans lequel la détermination (54) de la variation de température comprend:
    la détermination d'une première température moyenne des cheveux pendant l'intervention de coiffure précédente; la détermination d'une deuxième température moyenne des cheveux pendant l'intervention de coiffure en cours ; et la détermination d'une différence entre la deuxième température moyenne et la première température moyenne.
  4. Procédé (50) selon l'une quelconque des revendications précédentes, dans lequel la détermination (56) du nombre comprend:
    en réponse à la variation indiquant une augmentation de la température entre l'intervention de coiffure précédente et l'intervention de coiffure en cours, l'augmentation du décompte; et
    en réponse à la variation n'indiquant pas une augmentation de la température entre l'intervention de coiffure précédente et l'intervention de coiffure en cours, la réinitialisation du décompte à un.
  5. Le procédé (50) selon l'une quelconque des revendications précédentes, comprenant en outre:
    en réponse au dépassement par le décompte d'un seuil prédéterminé, l'arrêt d'au moins un appareil de chauffage du dispositif; et/ou
    fournir au moins une indication visuelle ou sonore du décompte.
  6. Dispositif (10) de coiffage des cheveux, le dispositif comprenant:
    un premier bras (30);
    un deuxième bras (32) couplé au premier bras (30);
    un capteur de température (22) configuré pour détecter une température des cheveux et émettre un signal de température indiquant la température détectée des cheveux;
    caractérisé par:
    un capteur d'état (28) configuré pour détecter si les premier et deuxième bras (30, 32) sont ouverts ou fermés et émettre un signal d'état indiquant un état ouvert/fermé des premier et deuxième bras (30, 32); et
    un contrôleur (24) configuré pour:
    recevoir le signal de température provenant du capteur de température (22) et le signal d'état provenant du capteur d'état (28);
    en réponse à la détection d'un changement dans l'état ouvert/fermé des premier et deuxième bras (30, 32), identifier une intervention de coiffure en cours;
    déterminer une variation de la température des cheveux entre l'intervention de coiffure en cours et une intervention de coiffure précédente; et
    déterminer, sur la base de la variation de la température des cheveux, un nombre de fois que le dispositif (10) a fonctionné sur une même mèche de cheveux, afin de contrôler ainsi le coiffage des cheveux.
  7. Dispositif (10) selon la revendication 6, dans lequel le contrôleur (24) est configuré pour identifier l'intervention de coiffure en cours de la manière suivante:
    en réponse à la détection de l'ouverture des premier et deuxième bras (30, 32), en déterminant que l'intervention de coiffure précédente se termine et que l'intervention de coiffure actuelle commence ; et
    en réponse à la détection de l'ouverture ultérieure des premiers et deuxième bras (30, 32), en déterminant que l'intervention de coiffure en cours se termine.
  8. Dispositif (10) selon l'une quelconque des revendications précédentes 6-7, dans lequel le contrôleur (24) est configuré pour déterminer la variation de la température des cheveux en:
    déterminant une première température moyenne des cheveux pendant l'intervention de coiffure précédente;
    déterminant une deuxième température moyenne des cheveux pendant l'intervention de coiffure en cours; et
    déterminant une différence entre la deuxième température moyenne et la première température moyenne.
  9. Dispositif (10) selon l'une quelconque des revendications précédentes 6-8, dans lequel le contrôleur (24) est configuré pour déterminer le décompte de la manière suivante:
    en réponse à la variation indiquant une augmentation de la température entre l'intervention de coiffure précédente et l'intervention de coiffure en cours, en augmentant le décompte; et
    en réponse à la variation n'indiquant pas une augmentation de température entre l'intervention de coiffure précédente et l'intervention de coiffure actuelle, en réinitialisant le décompte à un.
  10. Dispositif (10) selon l'une quelconque des revendications précédentes 6-9, dans lequel le contrôleur (24) est en outre configuré pour:
    en réponse au dépassement par le décompte d'un seuil prédéterminé, l'arrêt d'au moins un appareil de chauffage du dispositif (10); et/ou
    fournir au moins une indication visuelle ou sonore du décompte.
  11. Dispositif (10) selon l'une quelconque des revendications précédentes 6-10, comprenant en outre:
    une première plaque chauffante (18) disposée sur une surface du premier bras (30); et
    une deuxième plaque chauffante (20) disposée sur une surface du deuxième bras (32) opposée à la première plaque chauffante (18).
  12. Dispositif (10) selon l'une quelconque des revendications précédentes 6-11, dans lequel le capteur de température (22) comprend:
    un premier capteur de température sans contact disposé sur le deuxième bras (32) ayant un champ de vision faisant face au premier bras (30) et configuré pour mesurer une température d'un objet dans le champ de vision; et/ou
    un deuxième capteur de température sans contact disposé sur le premier bras (30) ayant un champ de vision faisant face au deuxième bras (32) et configuré pour mesurer une température d'un objet dans le champ de vision.
  13. Dispositif (10) selon la revendication 12, lorsqu'il dépend de la revendication 11, dans lequel le capteur de température (22) est disposé dans une ouverture dans la deuxième plaque chauffante (20).
  14. Dispositif (10) selon l'une quelconque des revendications 12 ou 13, dans lequel le capteur de température (22) comprend un capteur de température à infrarouge avec une fenêtre optique pour recevoir la lumière infrarouge et faire face au premier bras (30).
  15. Dispositif (10) selon l'une quelconque des revendications 11 à 14, dans lequel le capteur de température (22) est disposé sur une périphérie de la première plaque chauffante (18), et dans lequel la première plaque chauffante (18) comprend au moins une fente (42) entre le capteur de température et une partie centrale de la première plaque chauffante (18) pour isoler le capteur de température (22) de la partie centrale de la première plaque chauffante (18); et/ou dans lequel le capteur de température (22) est disposé sur une périphérie de la deuxième plaque chauffante (20), et dans lequel la deuxième plaque chauffante (20) comprend au moins une fente (42) entre le capteur de température et une partie centrale de la deuxième plaque chauffante (20) pour isoler le capteur de température (22) de la partie centrale de la deuxième plaque chauffante (18).
EP19835248.6A 2018-12-10 2019-12-09 Dispositif de coiffage Active EP3893691B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201822064823.7U CN210144047U (zh) 2018-12-10 2018-12-10 直发器
PCT/EP2019/084113 WO2020120348A1 (fr) 2018-12-10 2019-12-09 Dispositif de coiffure

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EP3893691A1 EP3893691A1 (fr) 2021-10-20
EP3893691B1 true EP3893691B1 (fr) 2022-05-04

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CN (2) CN210144047U (fr)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4042900A1 (fr) * 2021-02-16 2022-08-17 Koninklijke Philips N.V. Dispositif de coiffure
GB2622239A (en) * 2022-09-07 2024-03-13 Jemella Ltd Apparatus and methods for styling hair

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2795355T3 (es) * 2009-07-10 2020-11-23 Braun Gmbh Proceso automatizado para el cuidado del cabello
RU2654175C1 (ru) * 2011-12-16 2018-05-16 Тф3 Лимитед Устройство для укладки волос
GB2555310B (en) * 2012-12-03 2018-07-18 Jemella Ltd Hair styling apparatus
US20150144610A1 (en) * 2013-11-26 2015-05-28 Unil Electronics Corp. Hair iron controlled by usage detection and control method thereof
PL3766375T3 (pl) * 2015-12-09 2022-05-30 Spectrum Brands, Inc. Układ i sposób sterowania temperaturą dla urządzenia do stylizacji włosów
CN107625268A (zh) * 2017-01-26 2018-01-26 路博润先进材料公司 头发造型器具和操作该头发造型器具的方法
BR112019015147A2 (pt) * 2017-01-26 2020-03-24 Lubrizol Advanced Materials, Inc. Aparelho modelador de cabelo, uso do aparelho modelador de cabelo, método para auxiliar um usuário a modelar um segmento de cabelo, e, kit

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Publication number Publication date
KR20210099643A (ko) 2021-08-12
CN210144047U (zh) 2020-03-17
PL3893691T3 (pl) 2022-09-12
CN114206156A (zh) 2022-03-18
EP3893691A1 (fr) 2021-10-20
WO2020120348A1 (fr) 2020-06-18

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