EP3607852A1 - Sèche-cheveux - Google Patents

Sèche-cheveux Download PDF

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Publication number
EP3607852A1
EP3607852A1 EP18187925.5A EP18187925A EP3607852A1 EP 3607852 A1 EP3607852 A1 EP 3607852A1 EP 18187925 A EP18187925 A EP 18187925A EP 3607852 A1 EP3607852 A1 EP 3607852A1
Authority
EP
European Patent Office
Prior art keywords
heating unit
support
air
air outlet
air inlet
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.)
Withdrawn
Application number
EP18187925.5A
Other languages
German (de)
English (en)
Inventor
Mark Johannes Lelieveld
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
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 Koninklijke Philips NV filed Critical Koninklijke Philips NV
Priority to EP18187925.5A priority Critical patent/EP3607852A1/fr
Priority to CN201990000934.1U priority patent/CN216438690U/zh
Priority to PCT/EP2019/070890 priority patent/WO2020030547A1/fr
Publication of EP3607852A1 publication Critical patent/EP3607852A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • A45D20/122—Diffusers, e.g. for variable air flow

Definitions

  • the invention relates to a hair dryer.
  • CN206413915 (U ) discloses a hair dryer, including a plurality of heating windings around a first axis that is substantially perpendicular to a second axis around which a step-down winding is wound.
  • the second axis and the heating windings are parallel to a direction of an air flow caused by a fan. Air flows from an air inlet of the elongated hair dryer through the fan, then through an opening of the step-down winding, and finally along the heating windings to an air outlet.
  • the step-down winding provides a reduced voltage for the fan motor.
  • An aspect of the invention provides a hair dryer comprising a fan for generating an air flow from an air inlet to an air outlet; an air inlet channel from the air inlet to the fan; an air outlet channel from the fan to the air outlet; and a first heating unit at least partially around the air inlet channel.
  • the first heating unit is in the air outlet channel, the air outlet channel being at least partially around the air inlet channel.
  • the first heating unit is mounted around a first support at least partially around the air inlet channel.
  • the first support may be partially around the air inlet channel, and a second support may be mounted between ends of the first support, and the second support may be aligned with the air flow in the air outlet channel and perpendicular to the first support.
  • a second heating unit may be mounted around ends of the first support and the second support.
  • a shape of the first support may match a U-form having an elongated bottom part partially around the air inlet channel, the first heating unit being mounted around the elongated bottom part, while a second heating unit is mounted around legs of the U-form.
  • the first heating unit may be shaped to guide air from the fan into the air outlet channel.
  • a second heating unit in the air outlet channel is preferably shaped to guide air leaving the air outlet.
  • Embodiments of the invention have aspects in common with CN UM patent application 201820845226.5 filed on 1 June 2018 (attorneys' reference 2018PF00307), incorporated herein by reference, especially Fig. 4 thereof, but differ as regards the positions of the heaters, which are optimized so as to give a maximum heat output notwithstanding the challenge that the compact hair dryer design only allows for little room to accommodate the heaters.
  • Fig. 1 shows a cross-section of part of a first embodiment of a hair dryer in accordance with the present invention.
  • a motor M of a (centrifugal) fan F is mounted in a handle H of the hair dryer.
  • An air inlet channel AIC conducts cold air from an air inlet AI of the hair dryer to the fan F.
  • An air outlet channel AOC conducts air from the fan F to an air outlet AO.
  • the hair dryer comprises a first heating unit FHU around the air inlet channel AIC.
  • a second heating unit SHU is present in the air outlet channel AOC.
  • An air guide AG is present between the fan and the air outlet channel AOC. The air guide AG steers the air from the fan F along the first heating unit FHU.
  • the first heating unit FHU is mounted around a first support FS, which may be formed by a first mica sheet. Seen from the top, a shape of the first support FS resembles a horseshoe.
  • a second support SS which may be formed by a second mica sheet, best shown in Fig. 2 , is mounted between ends of the first support FS.
  • the first support FS has a U-shape with a very elongated bottom part, around which the first heating unit FHU is mounted, and relatively short legs L perpendicular to the elongated bottom part.
  • the second heating unit SHU is mounted around these legs L and the second support SS.
  • Embodiments of the invention show the following features / advantages:
  • the support structure FS, SS supports a first circular winding FHU and a second circular winding SHU perpendicular to the first winding FHU.
  • One of the circular windings can have an air channel AIC internally of the winding FHU - a pass through.
  • the support structure FS, SS may consist of only 2 main elements (or even allow 1 element with folding at tip), whereas conventional support structures usually have 3 or more elements.
  • the support structure FS, SS is shaped in the airflow direction and therefor delivers lowest resistance possible, whilst using plate mica sheet material. It is lightweight and flat, and makes use of the flexibility of mica sheet in bending direction and the rigidity in length direction.
  • the support structure FS, SS may have additional parts that influence the airflow, and which thus can replace diffusor elements. It may have a horseshoe shape.
  • An alternative horseshoe shape may allow a first circular winding FHU and a second circular winding SHU parallel offset (enabling hair stylers).
  • the bended horseshoe mica element can be put under an angle due to different cut out; doing so may improve the airflow.
  • Fig. 3 shows a cross-section of part of a second embodiment of a hair dryer in accordance with the present invention.
  • the first heating unit FHU is now formed by the air guide AG, which is made from a ceramic heating material.
  • the second heating unit SHU is now made from a ceramic heating material.
  • the second heating unit SHU may be a honeycomb-shaped heating module.
  • the second heating unit SHU may be formed from horizontal or vertical plates.
  • This second embodiment is based on the recognition that if ceramic heating elements are used, they may be shaped in a manner that influences the airflow, and in that case, they may perform functions that are normally carried out by hair dryer attachments like diffusors. As by doing so, a separate diffuser is redundant, a very compact hair dryer with a built-in diffuser is achieved.
  • Fig. 4 shows a front view of part of a third embodiment of a hair dryer in accordance with the present invention, in which the second heating unit SHU is formed by a ceramic heater module with vertical heating elements that shape the air flow.
  • first heating unit FHU there may be multiple windings of the first heating unit FHU.
  • a gap may be present in the elongated bottom part of the U-shaped first support FS.
  • Windings of the second heating unit SHU may be oriented aligned with the output air flow, like the heating windings of CN206413915 .
  • the first heating unit FHU and/or the second heating unit SHU may have wound heating wires, or may be formed by ceramic heating elements.
  • the first heating unit FHU and the second heating unit SHU may be made from a single continuous heating wire.
  • the first heating unit FHU may be a step-down winding if the motor needs to work on a lower voltage than the mains voltage; this is not necessary for a BLDC motor, in which case the first heating unit FHU at least partially around the air inlet channel AIC is just present to ensure that notwithstanding the compact overall volume of the hair dryer, sufficient heat is generated.
  • any reference signs placed between parentheses shall not be construed as limiting the claim.
  • the word “comprising” does not exclude the presence of elements or steps other than those listed in a claim.
  • the word "a” or “an” preceding an element does not exclude the presence of a plurality of such elements.
  • the invention may be implemented by means of hardware comprising several distinct elements. In the device claim enumerating several means, several of these means may be embodied by one and the same item of hardware. Measures recited in mutually different dependent claims may advantageously be used in combination.

Landscapes

  • Cleaning And Drying Hair (AREA)
EP18187925.5A 2018-08-08 2018-08-08 Sèche-cheveux Withdrawn EP3607852A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18187925.5A EP3607852A1 (fr) 2018-08-08 2018-08-08 Sèche-cheveux
CN201990000934.1U CN216438690U (zh) 2018-08-08 2019-08-02 吹风机
PCT/EP2019/070890 WO2020030547A1 (fr) 2018-08-08 2019-08-02 Sèche-cheveux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18187925.5A EP3607852A1 (fr) 2018-08-08 2018-08-08 Sèche-cheveux

Publications (1)

Publication Number Publication Date
EP3607852A1 true EP3607852A1 (fr) 2020-02-12

Family

ID=63174060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18187925.5A Withdrawn EP3607852A1 (fr) 2018-08-08 2018-08-08 Sèche-cheveux

Country Status (3)

Country Link
EP (1) EP3607852A1 (fr)
CN (1) CN216438690U (fr)
WO (1) WO2020030547A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232454A (en) * 1979-06-14 1980-11-11 Clairol Incorporated Variable airflow hair treatment device
AU6260980A (en) * 1980-09-22 1982-04-01 Bristol-Myers Company Hair dryer
WO2000035309A1 (fr) * 1997-06-18 2000-06-22 Fogarty Shaun P Sechoir pour cheveux a main peu bruyant
WO2007077040A2 (fr) * 2006-01-04 2007-07-12 Leopoldo Matteo Bazzicalupo Appareil seche-cheveux
CN206413915U (zh) 2017-01-23 2017-08-18 董祖彦 低磁波干燥器和吹风机
US20180031318A1 (en) * 2016-07-29 2018-02-01 Spur Concepts Inc. Systems and methods for delivering heat in a battery powered blow dryer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232454A (en) * 1979-06-14 1980-11-11 Clairol Incorporated Variable airflow hair treatment device
AU6260980A (en) * 1980-09-22 1982-04-01 Bristol-Myers Company Hair dryer
WO2000035309A1 (fr) * 1997-06-18 2000-06-22 Fogarty Shaun P Sechoir pour cheveux a main peu bruyant
WO2007077040A2 (fr) * 2006-01-04 2007-07-12 Leopoldo Matteo Bazzicalupo Appareil seche-cheveux
US20180031318A1 (en) * 2016-07-29 2018-02-01 Spur Concepts Inc. Systems and methods for delivering heat in a battery powered blow dryer
CN206413915U (zh) 2017-01-23 2017-08-18 董祖彦 低磁波干燥器和吹风机

Also Published As

Publication number Publication date
WO2020030547A1 (fr) 2020-02-13
CN216438690U (zh) 2022-05-06

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