EP2138065B1 - Heizwiderstand mit Ionisierungsvorrichtung, insbesondere für Haartrockner und ähnliche Maschinen - Google Patents

Heizwiderstand mit Ionisierungsvorrichtung, insbesondere für Haartrockner und ähnliche Maschinen Download PDF

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Publication number
EP2138065B1
EP2138065B1 EP08425454A EP08425454A EP2138065B1 EP 2138065 B1 EP2138065 B1 EP 2138065B1 EP 08425454 A EP08425454 A EP 08425454A EP 08425454 A EP08425454 A EP 08425454A EP 2138065 B1 EP2138065 B1 EP 2138065B1
Authority
EP
European Patent Office
Prior art keywords
support
resistor
dispersion tip
dispersion
tip
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.)
Not-in-force
Application number
EP08425454A
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English (en)
French (fr)
Other versions
EP2138065A1 (de
Inventor
Pierpaolo Laveni
Renzo Re
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.)
Gamma SpA
Original Assignee
Gamma SpA
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 Gamma SpA filed Critical Gamma SpA
Priority to EP08425454A priority Critical patent/EP2138065B1/de
Priority to DE602008002245T priority patent/DE602008002245D1/de
Priority to AT08425454T priority patent/ATE477721T1/de
Publication of EP2138065A1 publication Critical patent/EP2138065A1/de
Application granted granted Critical
Publication of EP2138065B1 publication Critical patent/EP2138065B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/20—Additional enhancing means
    • A45D2200/202—Ionisation

Definitions

  • the present invention relates to a ionising device, to be used for enriching air flows with ions, and in particular hot air flows coming from hairdryers, hand-dryers or similar devices.
  • the beneficial effects of ions in the air consist in sanitation and neutralisation of the polluting agents and smells, as well as in bringing physical welfare to users of apparatuses such as hand-dryers, hairdryers or similar devices.
  • a hairdryer with an electric heating resistor and an ionising device according to the preamble of claim 1 is disclosed in EP 1 527 709 A .
  • a suitable ionising device that is usually made up of a "tip” or “peak” placed to a given potential difference relative to a reference pole (generally a 3000 volt voltage is used) and positioned within the hairdryer's heating resistor: based on the well known electrical phenomenon of "dispersion of the tips", the electrical potential generates a series of charged particles in the vicinity of this tip, which particles are then carried by the hot air flow.
  • the present invention aims at conceiving a ionising device generating a high amount of electrically charged particles and able to disperse them in the most efficient manner from a fluid-dynamic point of view in the hot air flow.
  • the present invention aims at manufacturing a ionising device that can be easily and cheaply mounted on a wide range of supports for heating resistors, and is therefore able to define a heating resistor (for hairdryers, hand-dryers or the like) which is very efficient both in air heating and in air ionisation.
  • the present invention relates to creation of a ionising device of proved reliability, simple mounting a low production costs.
  • an ionising device is generally denoted at 1 and it substantially comprises at least one dispersion tip 1 which is adapted to generate and disperse a predetermined amount of electrically charged particles in a flow (which flow in turn will typically be a hot air flow emitted by a hairdryer and the like, or more generally an air flow that is submitted to heating through a heating resistor); then suitable electric supply means 3 is present which connects the dispersion tip 12 to an electric energy source.
  • a potential reference body 4 is interposed between the dispersion tip 2 and the electric supply means 3, so as to amplify the electrostatic effect of ionic generation (or more generally the electrostatic effects linked to the electrostatic-potential difference between the dispersion tip 2 and the electric energy source).
  • the present invention provides an additional circuit element interacting with the dispersion tip so as to increase efficiency and homogeneity in producing electric charges in the air flow.
  • each dispersion tip 2 will have its respective extension axis, and preferably these extension axes will be mutually parallel.
  • the dispersion tip 2 is made of an electrically conductive material and has a tapering course defining a main extension axis 2a; at the same time, the potential reference body 4 is rigidly connected to the dispersion tip 2 and is therefore made of an electrically conductive material that is coincident with the material of the dispersion tip 2.
  • the dispersion tip 2 and the potential reference body 4 constitute a single piece which is then connected to the electric supply means 3.
  • the potential reference body 4 can be made according to different geometries, depending on current requirements but it must be always sized and positioned such as to exert the above described amplification effect.
  • the potential reference body is a laminar body extending in a lying plane 4a substantially parallel to the main extension axis 2a and preferably containing the main extension axis 2a.
  • the potential reference body 4 is a laminar body extending in a lying plane 4a substantially transverse (and preferably perpendicular) to the main extension axis 2a.
  • the geometry of the potential reference body 4 can be of any type, provided it is a laminar body and has a sufficient surface for exerting the amplification effect of the electrostatic-charge generation underlying the present invention; conveniently, selection of the geometric figure to be given to the potential reference body also takes place based on the perturbing effect that is wished to be given to the hot air flow grazing said body under operating conditions.
  • the potential reference body 4 is shaped like a polygon (that depending on current requirements can be a trapezium, a parallelogram or a rectangle and so on); in particular, at least one "base" of this polygon (the minor base of said trapezium, for example) is positioned adjacent to the dispersion tip 2, so as to support it; it is also to be noted that the dispersion tip 2 itself is connected to the potential reference body without a break.
  • a support 5 which comprises at least one thin sheet (that is generally made of a heat-resistant and/or electrically insulating material and, depending on current requirements, can also be coated with mica or another anti-static material); support 5 defines an orientation axis 5a and conveniently the dispersion tip 2 is mounted on this support 5 in a staggered configuration relative to the support 5 itself.
  • Positioning of the dispersion tip 2 is determined in such a manner that the fluid-dynamics of the air flow grazing the support can be exploited; in fact, staggering is such selected that the trajectories of the ions generated in the vicinity are capable of bringing the ions themselves to the outside of the heating device, and at the same time staggering is such selected that the dispersion tip 2 is not placed to an excessively perturbing position for the flow.
  • the dispersion tip 2 would be conveniently mounted in a staggered configuration relative to at least two contiguous faces of at least two thin sheets of support 5.
  • the dispersion tip 2 (or dispersion tips, when more than one of them are present) has a minimum transverse staggering value relative to at least one thin sheet of support 5; this minimum staggering value is at least proportional to a speed profile of a flow on support 5 and/or to a distance from one end of support 5 placed downstream of the flow; according to particularly appreciable embodiments of the present invention, said minimum staggering value is most preferably included between 3 and 12 mm.
  • the dispersion tip 2 and/or the potential reference body 4 of the present device can have different configurations; for instance, the main extension axis 2a of the dispersion tip 2 can be parallel to the orientation axis 5a of support 5, while the lying plane 4a of the potential reference body 4 can be parallel or normal to the orientation axis 5a of support 5.
  • Fig. 12 it is possible to see an alternative embodiment of the present invention in which staggering of the different dispersion tips 2 (that at all events are connected without a break to a single potential reference body 4) is carried out by positioning the tips in a front area of support 5; in this way a geometric staggering is obtained both in a direction normal to the planes of the thin sheets constituting the support and along the orientation axis 5a.
  • Fig. 12 can be mounted within the relative heating apparatus in such a manner that the (individual) dispersion tip or the (multiple) dispersion tips are disposed "upstream” or "downstream” relative to the air flow.
  • this heating resistor comprises:
  • the ionising device can be only one, or a double ionising device can be present which is disposed either on opposite faces of the same thin sheet, or on opposite sides of the same face of a given thin sheet or also on adjacent faces of different thin sheets, depending on current requirements.
  • connecting means 6 which depending on requirements can be of any type; for instance, with reference to the drawings this connecting means 6 consists of a rivet means passing through a suitable hole in a thin sheet constituting the support 5 and adapted to electrically connect the potential reference body 4 and/or the dispersion tip 2 to the electric supply means 3.
  • the described rivet means enables very quick assembly of the whole heating resistor, and simultaneously perform two functions (structural coherence and electric continuity).
  • the invention enables achievement of important advantages.
  • the particular construction architecture of the ionising device allows an efficient exploitation of the electric potential difference thereby generating much more electric charges (dispersed in the air) as compared with the structures of known type and, on the other hand, also allows these electric charges to be discharged in the hot air flow so that they can reach the hot air outlet in a great amount (i.e. without impacting against the filaments of the heating resistor or the walls of the support, or in any case against other inner surfaces of the heating instrument).
  • the present invention can be easily configured both as to its position along the extension axis of the support/resistor, and as to the height for insertion into the flow, so that it is adaptable to a great variety of geometries and/or extensions of the heating resistors and/or the supports.
  • the presence of ionising devices in a single heating-resistor support can be doubled or multiplied; in this manner there is an exponential increase in the ionic density of the hot air emitted by the heating instrument.
  • the present invention enables manufacture of the supports for heating resistors and manufacture of the heating resistors themselves to take place at low production costs, which will involve low sale prices.

Landscapes

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

Claims (10)

  1. Elektrischer Heizwiderstand, umfassend:
    - einen Halter (5), der mindestens eine Lamelle aus wärmefestem und/oder elektroisolierendem Material umfasst, die sich längs einer Hauptausrichtungsachse (5a) erstreckt;
    - mindestens eine elektrische Wicklung, die an den Lamellen angebracht und bereitgestellt ist, um einen längs der Ausrichtungsachse (5a) des Halters (5) gerichteten Luftstrom zu erhitzen;
    - mindestens eine Ionisierungsvorrichtung (1), die am Halter (5) angebracht ist und umfasst:
    • mindestens eine Dispersionsspitze (2) mit einer Hauptabwicklungsachse (2a), die zur Hauptausrichtungsachse (5a) des Halters (5) parallel ist um eine vorgegebene Menge von elektrisch geladenen Teilchen im Luftstrom zu erzeugen und zerstreuen; und
    • Stromspeisemittel (3), die die Dispersionsspitze (2) mit einer elektrischen Energiequelle verbinden,
    dadurch gekennzeichnet, dass er überdies einen Potentialbezugskörper (4) umfasst, der die Dispersionsspitze (2) mit den elektrischen Speisemitteln (3) elektrisch verbindet, um einen elektrostatischen Effekt einer ionischen Erzeugung zu verstärken; wobei der Bezugskörper (4) ein lamellenartiger Körper ist, der sich auf einer Ebene (4a) abwickelt und quer auf dem Halter (5) derart angebracht ist, dass die mindestens eine Dispersionsspitze (2) am Halter (5) in einer gegenüber dem Halter (5) versetzten Gestaltung angebracht ist.
  2. Elektrischer Heizwiderstand gemäß Anspruch 1, bei dem die Dispersionsspitze (2) in einem elektrisch leitenden Material ausgeführt ist und einen sich verjüngenden Verlauf besitzt, der die Hauptabwicklungsachse (2a) festlegt, wobei der Potenzialbezugskörper (4) mit der Dispersionsspitze (2) starr verbunden und bevorzugter Weise in einem stromleitenden Material ausgeführt ist, das mit dem Material der Dispersionsspitze (2) zusammenfällt.
  3. Widerstand nach Anspruch 1 oder 2, bei dem der Potenzialbezugskörper (4) ein lamellenartiger Körper ist, der sich auf einer Ebene (4a) entwickelt, die im Wesentlichen zur Hauptentwicklungsachse (2a) parallel ist und sie enthält.
  4. Widerstand nach Anspruch 1 oder 2, bei dem der Potenzialbezugskörper (4) ein lamellenartiger Körper ist, der sich auf einer Ebene (4a) abwickelt, die im Wesentlichen zur Hauptentwicklungsachse (2a) quer liegt und bevorzugter Weise dazu senkrecht ist.
  5. Widerstand nach einem beliebigen der vorstehenden Ansprüche, bei dem der Potenzialbezugskörper (4) gemäß einem Vieleck ausgebildet ist, wobei das Vieleck bevorzugter Weise ein Trapez oder ein Rechteck ist, wobei mindestens eine Basis des Vieleckes nahe der Extrusionsspitze (2) liegt und diese trägt, bevorzugter Weise ohne Kontinuitätsunterbrechung.
  6. Widerstand nach einem beliebigen der vorstehenden Ansprüche, bei dem die versetzte Gestaltung der mindestens einen Dispersionsspitze (2) gegenüber dem Halter (5) aus einer geometrischen Versetzung besteht, die in zur Ebene der Lamelle senkrechter Richtung festgelegt ist, die den Halter (5) bildet und/oder längs der Ausrichtungsachse (5a) des Halters (5) angeordnet ist.
  7. Widerstand nach Anspruch 6, bei dem der Halter (5) zwei oder mehrere Lamellen umfasst, die sich untereinander im Bereich einer mittigen Achse schneiden, die längs der Ausrichtachse (5a) ausgerichtet ist und mit derselben zusammenfällt, wobei die Dispersionsspitze (2) in gegenüber mindestens zwei anliegenden Flächen mindestens zweier Lamellen des Halters (5) versetzter Gestaltung angebracht ist.
  8. Widerstand nach Anspruch 6 oder 7, bei dem die mindestens eine Dispersionsspitze (2) eine Querversetzungsbetrag gegenüber mindestens einer Halterlamelle (5) aufweist, der bevorzugter Weise zwischen 3 und 12 mm liegt; wobei der Versetzungsbetrag zu einem Flussgeschwindigkeitsprofil auf dem Halter (5) und/oder zu einem Abstand von einem Ende des Halters (5) proportional ist, das nach dem Luftstrom liegt.
  9. Widerstand nach einem beliebigen der vorstehenden Ansprüche, umfassend Verbindungsmittel (6), die mindestens zwischen der Ionisierungsvorrichtung (1) und dem Halter (5) zwischengeschaltet sind, wobei die Verbindungsmittel (6) gleichzeitig die Ionisierungsvorrichtung (1) mit den Stromspeichermitteln (3) und mit dem Halter (5) verbinden.
  10. Widerstand nach Anspruch 9, bei dem Verbindungsmittel (6) eine Vernietung umfassen, die durch den Halter (5) geht und den Potenzialbezugskörper (4) und/oder die Dispersionsspitze (2) mit den Stromspeicherungsmitteln (3) elektrisch verbinden.
EP08425454A 2008-06-26 2008-06-26 Heizwiderstand mit Ionisierungsvorrichtung, insbesondere für Haartrockner und ähnliche Maschinen Not-in-force EP2138065B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08425454A EP2138065B1 (de) 2008-06-26 2008-06-26 Heizwiderstand mit Ionisierungsvorrichtung, insbesondere für Haartrockner und ähnliche Maschinen
DE602008002245T DE602008002245D1 (de) 2008-06-26 2008-06-26 Heizwiderstand mit Ionisierungsvorrichtung, insbesondere für Haartrockner und ähnliche Maschinen
AT08425454T ATE477721T1 (de) 2008-06-26 2008-06-26 Heizwiderstand mit ionisierungsvorrichtung, insbesondere für haartrockner und ähnliche maschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08425454A EP2138065B1 (de) 2008-06-26 2008-06-26 Heizwiderstand mit Ionisierungsvorrichtung, insbesondere für Haartrockner und ähnliche Maschinen

Publications (2)

Publication Number Publication Date
EP2138065A1 EP2138065A1 (de) 2009-12-30
EP2138065B1 true EP2138065B1 (de) 2010-08-18

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Application Number Title Priority Date Filing Date
EP08425454A Not-in-force EP2138065B1 (de) 2008-06-26 2008-06-26 Heizwiderstand mit Ionisierungsvorrichtung, insbesondere für Haartrockner und ähnliche Maschinen

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EP (1) EP2138065B1 (de)
AT (1) ATE477721T1 (de)
DE (1) DE602008002245D1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2543538B (en) 2015-10-21 2018-05-09 Dyson Technology Ltd A haircare appliance
GB2543536B (en) 2015-10-21 2019-01-02 Dyson Technology Ltd A handheld appliance
GB2543537B (en) 2015-10-21 2018-09-19 Dyson Technology Ltd A handheld appliance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0303784A (pt) * 2003-09-04 2004-12-14 Daihatsu Ind E Com De Moveis E Secador de cabelos aperfeiçoado
DE10351265A1 (de) * 2003-10-31 2005-06-23 Braun Gmbh Haarpflegegerät
KR100809568B1 (ko) * 2004-04-23 2008-03-04 마츠시다 덴코 가부시키가이샤 정전 무화기를 구비한 가열 송풍 장치

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DE602008002245D1 (de) 2010-09-30
ATE477721T1 (de) 2010-09-15
EP2138065A1 (de) 2009-12-30

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