EP0242777A2 - Appareil du type sèche-cheveux, ventilateur à air chaud - Google Patents

Appareil du type sèche-cheveux, ventilateur à air chaud Download PDF

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Publication number
EP0242777A2
EP0242777A2 EP87105519A EP87105519A EP0242777A2 EP 0242777 A2 EP0242777 A2 EP 0242777A2 EP 87105519 A EP87105519 A EP 87105519A EP 87105519 A EP87105519 A EP 87105519A EP 0242777 A2 EP0242777 A2 EP 0242777A2
Authority
EP
European Patent Office
Prior art keywords
heating resistor
hair dryer
switch
motor
switching
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
EP87105519A
Other languages
German (de)
English (en)
Other versions
EP0242777A3 (fr
Inventor
Klaus Hafemann
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.)
Wik Elektro-Hausgerate-Vertriebsgesellschaft Mbh & Co Produktions-Kommanditgesellschaft
WIK Elektro Hausgeraete
Original Assignee
Wik Elektro-Hausgerate-Vertriebsgesellschaft Mbh & Co Produktions-Kommanditgesellschaft
WIK Elektro Hausgeraete
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 Wik Elektro-Hausgerate-Vertriebsgesellschaft Mbh & Co Produktions-Kommanditgesellschaft, WIK Elektro Hausgeraete filed Critical Wik Elektro-Hausgerate-Vertriebsgesellschaft Mbh & Co Produktions-Kommanditgesellschaft
Publication of EP0242777A2 publication Critical patent/EP0242777A2/fr
Publication of EP0242777A3 publication Critical patent/EP0242777A3/fr
Ceased 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
    • A45D20/22—Helmets with hot air supply or ventilating means, e.g. electrically heated air current
    • A45D20/30—Electric circuitry specially adapted for hair drying devices
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0019—Circuit arrangements

Definitions

  • the invention relates to a hair dryer, fan heater or similar, an electrical heating element and a blower having electrical device for connection to an AC voltage source, with a heating resistor, possibly having several sections, and a blower motor, preferably designed as a DC motor, switches for the input and Switching off the blower motor and the heating resistor and, preferably, a rectifier circuit assigned to the blower motor are provided.
  • the invention has for its object to provide a hair dryer, fan heater or the like.
  • a hair dryer, fan heater or the like For connection to an AC voltage source, in which a real cold stage is realized with simple circuitry means.
  • the hair dryer, fan heater or the like according to the invention in which the above-mentioned object is achieved, is characterized in that the blower motor, possibly with the rectifier circuit, and a capacitor arrangement are arranged in a series circuit and the series circuit is connected in parallel with the heating resistor.
  • the switches which may be present also belong to the series circuits mentioned above, or may belong to them, if only one common switch is not provided, without the need for different switching stages sees.
  • the capacitor arrangement has at least one capacitor, so that a mixed ohmic-inductive-capacitive series connection results here.
  • the capacitor arrangement has an infinitely high DC resistance, but acts in terms of AC voltage as a voltage divider resistor.
  • the operating voltage of the blower motor can be precisely specified, given a certain nominal voltage and a certain frequency of the AC voltage source. Since the current flowing through the blower motor does not flow through the heating resistor, a real cold stage results when the blower motor is switched on and the heating resistor is switched off, with extremely simple circuitry means and with the lowest possible consumption of electrical energy in the cold stage.
  • the capacitor arrangement can have two or more capacitors connected in parallel, if this should be expedient in terms of circuitry or space requirements.
  • the AC resistance of the capacitor arrangement depends on the capacitance of the capacitor arrangement and on the frequency of the AC voltage source
  • different connection voltages on the one hand of the AC voltage source and on the other hand of the blower motor to be used can be taken into account in that several capacitor arrangements having different capacities are provided and can be optionally switched on and / or that the capacitance of the or a capacitor arrangement is adjustable.
  • the speed of the blower motor can also be controlled.
  • the heating resistor can also be switched accordingly (DE-OS 33 42 206 and DE-OS 32 34 012).
  • the switch for switching the heating resistor on and off and the switch for switching the fan motor on and off are combined in a step switch and the switch for switching the heating resistor on and off after the switch for switching the fan motor on and off closes and opens in front of it. This ensures that current is not passed through the heating resistor until the blower motor is already running. This reduces the risk of overheating.
  • the teaching of the invention relates in particular to hair dryers and fan heaters, but can be used in principle in all electrical devices with a heating resistor and a blower motor.
  • a switch 5 is used to switch the entire circuit arrangement on and off, and a switch 6 to switch a part of the heating resistor 2 on and off Gate 3, which is designed here as a DC motor, assigned a rectifier circuit 7, which is designed as a full-wave diode rectifier in the exemplary embodiment shown here.
  • the blower motor 3 is connected via the rectifier circuit 7 on the one hand to a pole of the AC voltage source 1, and on the other hand to a voltage tap of the heating resistor 2.
  • the blower motor 3 also operates.
  • a portion of the heating resistor 2 is inevitably flowed through by the current through the blower motor 3, so that the heating resistor 2 is also heated more or less unintentionally. No cold air can therefore be blown with the known hair dryer shown in FIG. 1, a real cold step is not realized here.
  • the blower motor 3 with the rectifier circuit 7 and a capacitor arrangement 8 are arranged in a series circuit 9 and the series circuit 9 is connected in parallel with the heating resistor 2.
  • the capacitor arrangement 8 has two capacitors 10 connected in parallel.
  • the switch 5 for switching the heating resistor 2 on and off is connected in series with the heating resistor 2
  • the switch 6 for switching the fan motor 3 on and off is connected in series with the series circuit 9.

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  • Cleaning And Drying Hair (AREA)
EP87105519A 1986-04-24 1987-04-14 Appareil du type sèche-cheveux, ventilateur à air chaud Ceased EP0242777A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3613893 1986-04-24
DE19863613893 DE3613893A1 (de) 1986-04-24 1986-04-24 Haartrockner, heizluefter od. dgl.

Publications (2)

Publication Number Publication Date
EP0242777A2 true EP0242777A2 (fr) 1987-10-28
EP0242777A3 EP0242777A3 (fr) 1988-03-16

Family

ID=6299451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105519A Ceased EP0242777A3 (fr) 1986-04-24 1987-04-14 Appareil du type sèche-cheveux, ventilateur à air chaud

Country Status (2)

Country Link
EP (1) EP0242777A3 (fr)
DE (1) DE3613893A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566833A2 (fr) * 1992-04-24 1993-10-27 Wella Aktiengesellschaft Douche à air portatif

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903905A (en) * 1972-06-01 1975-09-09 Gillette Co Hair drying and styling apparatus
DE3234012A1 (de) * 1982-09-14 1984-03-15 Braun Ag Elektrische schaltungsanordnung fuer haartrockner, heizluefter und dergleichen
DE3342206A1 (de) * 1983-11-23 1985-05-30 WIK Elektro-Hausgeräte-Vertriebsgesellschaft mbH & Co Produktionskommanditgesellschaft, 4300 Essen Elektrische schaltung fuer die stromversorgung eines elektrischen verbrauchers mit heizwiderstaenden und einem geblaesemotor
DE3429319A1 (de) * 1984-08-09 1986-02-27 Gimelli & Co. AG, Zollikofen Von hand zu fuehrendes warmluftgeraet

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1546750A (fr) * 1967-10-11 1968-11-22 L T Piver S A Sèche-cheveux à température et à débit d'air réglables
US4088869A (en) * 1975-04-28 1978-05-09 General Electric Company Temperature limiting circuit for electric hair dryers
US4003388A (en) * 1976-04-01 1977-01-18 General Electric Company Hair dryer variable control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903905A (en) * 1972-06-01 1975-09-09 Gillette Co Hair drying and styling apparatus
DE3234012A1 (de) * 1982-09-14 1984-03-15 Braun Ag Elektrische schaltungsanordnung fuer haartrockner, heizluefter und dergleichen
DE3342206A1 (de) * 1983-11-23 1985-05-30 WIK Elektro-Hausgeräte-Vertriebsgesellschaft mbH & Co Produktionskommanditgesellschaft, 4300 Essen Elektrische schaltung fuer die stromversorgung eines elektrischen verbrauchers mit heizwiderstaenden und einem geblaesemotor
DE3429319A1 (de) * 1984-08-09 1986-02-27 Gimelli & Co. AG, Zollikofen Von hand zu fuehrendes warmluftgeraet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0566833A2 (fr) * 1992-04-24 1993-10-27 Wella Aktiengesellschaft Douche à air portatif
EP0566833A3 (fr) * 1992-04-24 1995-02-01 Wella Ag Douche à air portatif.

Also Published As

Publication number Publication date
EP0242777A3 (fr) 1988-03-16
DE3613893A1 (de) 1987-10-29

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Inventor name: HAFEMANN, KLAUS