EP1286607B1 - Catalytic gas combustion device for an appliance for personal use - Google Patents

Catalytic gas combustion device for an appliance for personal use Download PDF

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Publication number
EP1286607B1
EP1286607B1 EP01925428A EP01925428A EP1286607B1 EP 1286607 B1 EP1286607 B1 EP 1286607B1 EP 01925428 A EP01925428 A EP 01925428A EP 01925428 A EP01925428 A EP 01925428A EP 1286607 B1 EP1286607 B1 EP 1286607B1
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EP
European Patent Office
Prior art keywords
gas
catalyst
cover
supply device
gas supply
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.)
Expired - Lifetime
Application number
EP01925428A
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German (de)
French (fr)
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EP1286607A1 (en
Inventor
Peter Janouch
Peter Lange
Dieter Liebenthal
Silvia Rix
Heinz Kern
Peter Ruppert
Friedrich Henninger
Jürgen SENG
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Braun GmbH
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Braun GmbH
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Publication of EP1286607A1 publication Critical patent/EP1286607A1/en
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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
    • A45D2/00—Hair-curling or hair-waving appliances ; Appliances for hair dressing treatment not otherwise provided for
    • A45D2/36—Hair curlers or hair winders with incorporated heating or drying means, e.g. electric, using chemical reaction
    • 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
    • A45D1/02—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel
    • 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
    • A45D20/06—Hot-air producers heated otherwise than electrically; ventilated by muscle power
    • 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
    • A45D20/06—Hot-air producers heated otherwise than electrically; ventilated by muscle power
    • A45D2020/065—Hot-air producers heated otherwise than electrically; ventilated by muscle power heated by gas or fuel

Definitions

  • the invention relates to a catalytic gas combustion device for a personal device Need, especially hair styling device, such as hair curlers or hair dryers the preamble of claim 1.
  • hair styling device such as hair curlers or hair dryers the preamble of claim 1.
  • Such a catalytic gas combustion device is known from document US 5 394 862 A.
  • Such catalytic gas combustion devices are used in personal devices Used as needed to generate thermal energy with gas without electricity.
  • Such a thing Device is, for example, by the applicant itself under the name HS3 Plus sold as "Braun Style Shaper".
  • the ignition device from a piezo igniter with two ignition electrodes arranged next to one another consists. These ignition electrodes are in the chamber surrounding the catalyst arranged.
  • the gas supply is first via a on the gas supply device arranged valve device opened mechanically. Gas flows with mixing with air through the gas supply device and enters the space of the catalyst. Since the catalyst consists of a tubular sieve part, the gas-air mixture also get into the chamber, where it is distributed and thus flows around the ignition electrodes. Now the piezo igniter is ignited by hand and sparks jump from one to the other electrode, which cause the gas-air mixture to ignite in the chamber and thus initiates the catalytic combustion process on the catalyst. To the Initiating the ignition process must elapse a certain amount of time before this Gas-air mixture has reached the electrodes. Only then is it possible to do that Explosion of gas-air mixture.
  • the object of the invention is now a catalytic gas combustion device for a device to create the domestic needs, in particular gas curier or hair dryer, at the shortly after opening the gas supply, just by initiating the ignition process Gas-air mixture can be detonated, causing catalytic combustion sets in quickly.
  • Another advantage is the very reliable ignition system, because the ignition process due to the short gas path and the rapid flow around the igniter is reproducible with the gas-air mixture and therefore ignition failures can be avoided. is always reproducible in the same way due to the short gas path.
  • Gas supply devices are to be understood as those components of the gas combustion device which connect to the gas valve to control the gas flow. It is also quite conceivable that part of the catalyst, in which the gas-air mixture flows in, can be provided with a bypass.
  • the gas-permeable cover acts like one Throttle valve, so that a certain amount of the gas-air mixture safely and quickly also reaches the ignition device via the bypass.
  • the greater the gas permeability of the first Coverage is the more of the gas-air mixture becomes the chamber of the catalyst fed and the less reaches the ignition device.
  • the output of the bypass is one second gas permeable cover, which is in coordination with the first cover
  • the permeability is chosen so that there is still sufficient gas-air mixture reaches the ignition device via the bypass.
  • This second cover also has that Advantage that the gas explosion proceeding from the ignition device does not pass through the bypass into the chamber of the catalyst, but only from the outside through the catalyst surrounding space reaches the catalyst.
  • the first and second cover from a metallic sieve, the passages of which are a sufficient amount of Allow the gas-air mixture to flow to both the catalytic converter and the ignition device. That too metallic screen of the second cover serves as a kind of gas flow restrictor so as not To give too much gas to the ignition device.
  • the two covers serve also as an improvement in the mixing of the gas-air mixture when passing through the covers flows.
  • patent claim 6 also enable simple manufacture of the bypass on the gas supply device by merely forming a slot on the side of the bore which is bounded by the second cover at its opening.
  • the one-piece design of the first and second cover as a cover part the manufacture, parts storage and assembly of the device considerably simplified. This lowers the cost of the device.
  • the features of claim 8 allow a simple connection of the catalyst the cover and the gas supply device by placing the cover on the gas supply device and the catalyst is again centered on the cover. In this way the catalyst can be fixed to the gas supply device, for example via a screw connection, Gluing, plastic deformation or any other known fastening device, get connected.
  • FIGS. 1 to 3 there is the curling iron or hair curler 1, which is only partially shown from a tube 3 provided with circumferentially distributed passages 2, in its chamber 4, a tubular catalyst 5 consisting of a grid-shaped material is arranged is.
  • the heat-permeable tube 3 is on a centering pin formed on a base 6 7 pushed on and centered there.
  • the free end 8 of the tube 3 strikes to a formed on the base 6 end face 9 and is in this position in the Drawing, not shown, actuating means fixedly connected to the base 6.
  • the Base 6 is preferably formed from a temperature-resistant plastic Plastic part made.
  • the base 6 serves as a receptacle not shown in the drawing Ignition device, a valve device and one formed in a handle Gas cartridge with housing, as is the case with the device described above.
  • a centering mandrel 10 is formed on the base 6, on its base Outer surface 11, a gas supply device 12 is centered and fastened in a sealing manner.
  • the gas supply device 12 consists essentially of a Central tube 13, the bore 14 is tapered from right to left up to a step 15 tapered, which results in better flow and mixing ratios of the gas-air mixture provides. From stage 15 onwards, the bore 14 then runs with a constant diameter to the free end 16 of the central tube 13 on the output side.
  • a tubular catalyst 5 formed vertically away extending collar 21 which protrudes radially in the region of the arms 17, 18, 19 Fastening arms 22, 23, 24.
  • the mounting arms 22, 23, 24 are with Provide holes 25, 26, 27, which by pins 28 protruding from the arms 17, 18, 19, 29, 30 are penetrated.
  • the catalyst 5 is on the gas supply device 12 centered and held stationary.
  • the attachment of the catalyst 5 on the gas supply device 12 takes place in that the pins 28, 29, 30 after they have drilled the holes 25, 26, 27 have penetrated according to FIGS. 1 to 3, are mechanically deformed in this way, that they create a positive connection like a rivet.
  • the state is shown shortly before the deformation.
  • the ends of the pins 28, 29, 30 are provided with inclined surfaces 63, 64, 65.
  • the tube 3 is in cross section is essentially oval and has one from the inner wall 66 inwards to in Proximity of the catalyst 5 reaching, curved wall 35, one opposite the Catalytic converter 5 partially covers thermostats 36 that partially protect against heat radiation.
  • the thermostat 36 and the wall 35 run in the longitudinal direction and parallel to the catalytic converter 5th
  • a sheet metal strip provided with bends 67, 68 runs from the right 37, one section 69 of which extends to the level of the arms 17, 18, 19 and is angled there ends with an arrowhead 38.
  • the pin 39 forms with the arrowhead 38 the ignition electrodes of the ignition device, over which, if, for example, sufficient voltage is not applied to the metal strip 37 one or more sparks overturn the pin 39.
  • the sheet metal strip 37 is opposite the: gas supply device 12 and the housing parts of the curling iron 1 isolated.
  • a bypass in the gas supply device 12 40 formed by a second cover consisting of a wire mesh 41 is limited to the outside.
  • the second cover 41 describes how this is particularly so Fig. 4 clearly shows part of a hollow cylinder section; the surface of the Outlet opening of the bypass 40 is parallel, so it is equally curved.
  • the bypass 40 has an inlet opening 42 and the outlet opening 43, the outlet opening 43 at the second cover 41 is adjacent.
  • a transverse to the second cover 41, the 4 of the rim 45, 46 extends laterally away, the central axis 70 of the brim 44 simultaneously the central axis 70 of the second Cover 41 is.
  • a cup-shaped first cover 47 adjoins the brim 44.
  • the first cover 47 With its brim 44, the first cover 47 essentially forms a structure 62 with a Hat with border, however the brim 44 is cut in two places 48, 49 and this part, which forms the second cover 41, is perpendicular to the brim 44 downwards bent over the bending line 50 and thus forms a tab 61.
  • the state is already the second, which is essentially rectangular in cross section Cover 41, that is, the tab 61, already at the edge 51 of the brim 44 radially outward to later the entire cross section of the outlet opening in the bent state 43 to cover.
  • a cutout 54 on the surface of the Catalyst 5 was made on an enlarged scale to show that the wall of the catalyst 5 with many small openings 53, for example as a wire mesh through which the gas-air mixture enter the chamber 4 before the ignition process Can.
  • the same applies to the first and second covers 47, 41, which form a single cover part 55 are summarized and in which the material is also lattice-shaped with small Passages 56 is formed.
  • the cover part 55 is a stamped, bent and stamped part, preferably made of fine wire mesh.
  • the first cover 47 has a cylindrical section 57, which is located on the outer diameter 58 of the free end 16 of the gas supply device 12 is centered.
  • the covers disc-shaped section 59 adjoining cylindrical section 57 is the entrance opening 60 of the catalyst 5 in this area and the bore 14 completely, as shown in FIG. 1. Since the inlet opening 60 of the catalyst 5 is larger than that The outer diameter of the free end 16 of the central tube 13 creates an annular or outlet opening 71, via the gas-air mixture also into or out of space 52 of the catalyst 5 can occur.
  • the operation of the catalytic gas burner for a curling iron or a hair curler 1 is as follows:
  • a gas valve (not shown in the drawing) is rotatable on the base 6 or displaceably arranged valve actuating element (not shown) opened.
  • Gas flows through the valve device via the gas cartridge, not shown in the drawing, mixes with air and then passes through one in the drawing in the base 6 trained channel (not shown) in the bore 14 of the gas supply device 12 and is accelerated there (tapered bore section 14 serves as a Venturi nozzle).
  • the gas-air mixture now flows on the one hand through the disk-shaped section 59 into the Space 52 of the catalyst 5 and on the other hand also via the inlet opening 42 in the bypass 40 to the outlet opening 43 and from there into the surrounding the outer surface of the catalyst 5 Chamber 4.
  • the explosion wave now proceeds from the ignition electrodes 38, 39 up to the Wire hairs 34, which due to their low mass are immediately made to glow, From there settles over the edge of the free end 31 of the catalyst 5 Annealing process continues until the entire catalyst 5 glows.
  • Catalytic combustion has started and the combustion gases released by the combustion flow in the chamber 4 along and ultimately emerge as still hot gas from the passages 2 of the tube 3 outwards.
  • the tube 3 heats up and after a short time is the curling iron 1 ready for operation, i.e.
  • hair can be placed around the outer surface of the tube 3, which is then heated or even additionally by means of an evaporator device integrated in the curling iron (not shown) can be moistened to be durable in a quick manner To be able to form curls in the strands of hair.
  • the gas-air permeability of the first and second covers 47, 41 is dimensioned such that a sufficiently large amount of gas-air mixture to the ignition electrodes in a particularly short time 38, 39 arrives. At the same time, a sufficient amount of gas and air gets into the Space 52 of the catalytic converter 5.
  • This ratio of the gas-air mixture distribution must be well matched be coordinated to accelerate the explosion process on the one hand and to improve it in general and on the other hand in spite of the bypass 40 also to cause sufficient catalytic combustion in the catalyst 5. That in Operation via the bypass gas-air mixture then additionally supplies the chamber 4 with fuel to ensure a particularly uniform catalytic combustion even at the Obtain outer surface of the catalyst 5.
  • the gas valve is closed again and the catalytic combustion is ended, i.e. the curling iron 1, but especially the tube 3, cool down again.
  • the Lokken staff 1 can be put aside.
  • an end cap (not shown). This can also be replaced by an evaporator device (not shown).

Landscapes

  • Lighters Containing Fuel (AREA)
  • Gas Burners (AREA)
  • Catalysts (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

A catalytic gas combustion device for an appliance for personal use with a gas supply device and a catalyst connected to the gas supply device is disclosed. To ignite the gas/air mixture and therefore to initiate catalytic combustion at the catalyst, an ignition device which can be controlled by an ignition system is provided. The gas supply device has a bypass for branching off part of a gas stream which flows onto the ignition device. In this way, the ignition system is actuated even shortly after the gas valve device is opened, and the catalyst is brought to its operating temperature as a result of the explosion of the gas/air mixture.

Description

Die Erfindung betrifft eine katalytische Gasverbrennungseinrichtung für ein Gerät des persönlichen Bedarfs, insbesondere Haarformgerät, wie Haarcurler oder Haartrockner, nach dem Oberbegriff des Patentanspruchs 1. Solch eine katalytische Gasverbrennungseinrichtung ist bekannt aus dem Dokument US 5 394 862 A.The invention relates to a catalytic gas combustion device for a personal device Need, especially hair styling device, such as hair curlers or hair dryers the preamble of claim 1. Such a catalytic gas combustion device is known from document US 5 394 862 A.

Derartige katalytische Gasverbrennungseinrichtungen werden in Geräten des persönlichen Bedarfs eingesetzt, die ohne elektrischen Strom mit Gas Wärmeenergie erzeugen. Ein derartiges Gerät wird beispielsweise von der Anmelderin selbst unter der Bezeichnung HS3 Plus als "Braun Style Shaper" vertrieben. In diesem Haarformgerät ist eine katalytische Gasverbrennungseinrichtung gemäß dem Oberbegriff des Patentanspruchs 1 integriert, bei der die Zündeinrichtung aus einem Piezozünder mit zwei nebeneinander angeordneten Zündelektroden besteht. Diese Zündelektroden sind in der den Katalysator umgebenden Kammer angeordnet.Such catalytic gas combustion devices are used in personal devices Used as needed to generate thermal energy with gas without electricity. Such a thing Device is, for example, by the applicant itself under the name HS3 Plus sold as "Braun Style Shaper". In this hair styling device there is a catalytic one Integrated gas combustion device according to the preamble of claim 1 the ignition device from a piezo igniter with two ignition electrodes arranged next to one another consists. These ignition electrodes are in the chamber surrounding the catalyst arranged.

Um das Gerät in Betrieb zu setzen, wird zunächst die Gaszufuhr über eine an der Gaszuführeinrichtung angeordnete Ventileinrichtung mechanisch geöffnet. Gas strömt unter Vermischung mit Luft durch die Gaszuführeinrichtung und gelangt in den Raum des Katalysators. Da der Katalysator aus einem rohrförmigen Siebteil besteht, kann das Gas-Luftgemisch auch in die Kammer gelangen, wo es sich verteilt und somit auch die Zündelektroden umströmt. Nun wird der Piezozünder von Hand gezündet und es springen Funken von der einen zur anderen Elektrode, die bewirken, daß sich das Gas-Luftgemisch in der Kammer entzündet und somit den katalytischen Verbrennungsvorgang am Katalysator initiiert. Um den Zündvorgang einzuleiten, muß bei diesem Gerät eine gewisse Zeit verstreichen, bis das Gas-Luftgemisch die Elektroden erreicht hat. Erst dann besteht die Möglichkeit, das Gas-Luftgemisch zur Explosion zu bringen.In order to put the device into operation, the gas supply is first via a on the gas supply device arranged valve device opened mechanically. Gas flows with mixing with air through the gas supply device and enters the space of the catalyst. Since the catalyst consists of a tubular sieve part, the gas-air mixture also get into the chamber, where it is distributed and thus flows around the ignition electrodes. Now the piezo igniter is ignited by hand and sparks jump from one to the other electrode, which cause the gas-air mixture to ignite in the chamber and thus initiates the catalytic combustion process on the catalyst. To the Initiating the ignition process must elapse a certain amount of time before this Gas-air mixture has reached the electrodes. Only then is it possible to do that Explosion of gas-air mixture.

Aufgabe der Erfindung ist es nun, eine katalytische Gasverbrennungseinrichtung für ein Gerat des hauslichen Bedarfs, insbesondere Gascurier oder Haaartrockner, zu schaffen, bei der kurz nach Öffnen der Gaszufuhr bereits schon durch Einleiten des Zündvorgangs das Gas-Luftgemisch zur Explosion gebracht werden kann, so daß die katalytische Verbrennung schnell einsetzt. The object of the invention is now a catalytic gas combustion device for a device to create the domestic needs, in particular gas curier or hair dryer, at the shortly after opening the gas supply, just by initiating the ignition process Gas-air mixture can be detonated, causing catalytic combustion sets in quickly.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Durch den Bypass in der Gaszuführungseinrichtung wird ein Teilstrom vom Hauptstrom des Gas-Luftgemisches abgezweigt und direkt der in Nähe des Bypassausganges angeordneten Zündelektrode zugeführt, um bereits nach sehr kurzer Zeit durch Betätigung der Zündeinrichtung das dort befindliche Gas zur Explosion zu bringen. Hierdurch verbrennt auch das im Raum des Katalysators sowie das den Katalysator umgebende Luft-Gasgemisch schlagartig und der Katalysator erreicht so seine Betriebstemperatur, die zur einwandfreien katalytischen Verbrennung erforderlich ist. Die Zündeinrichtung kann dabei von beliebiger Natur sein. So ist beispielweise eine Piezozündeinrichtung, eine durch einen Glühfaden gebildete elektrische Zündeinrichtung oder eine rein mechanische Zündeinrichtung denkbar. Ein weiterer Vorteil liegt in der sehr zuverlässig arbeitenden Zündanlage, da der Zündvorgang durch den kurzen Gasweg und das schnelle Umströmen des Zünders mit dem Gas-Luftgemisch reproduzierbar ist und daher Zündausfälle vermieden werden. immer wieder auf gleiche Weise durch den kurzen Gasweg reproduzierbar ist. Unter der Gaszuführeinrichtung sind diejenigen Bestandteile der Gasverbrennungseinrichtung zu verstehen, die sich an das Gasventil zum Steuern des Gasflusses anschließen. Dabei ist es auch durchaus denkbar, daß auch ein Teil des Katalysators, in den das Gas-Luftgemisch einströmt, mit einem Bypass versehen sein kann.This object is achieved by the characterizing features of the claim 1 solved. Through the bypass in the gas supply device, a partial flow of Main stream of the gas-air mixture branched off and directly that near the bypass outlet arranged ignition electrode supplied to after a very short time by actuation to cause the ignition device to explode the gas there. This burns also that in the space of the catalyst and that surrounding the catalyst Air-gas mixture suddenly and the catalytic converter reaches its operating temperature is required for perfect catalytic combustion. The ignition device can of any nature. For example, a piezo ignition device is a through an electric ignition device or a purely mechanical ignition device conceivable. Another advantage is the very reliable ignition system, because the ignition process due to the short gas path and the rapid flow around the igniter is reproducible with the gas-air mixture and therefore ignition failures can be avoided. is always reproducible in the same way due to the short gas path. Under the Gas supply devices are to be understood as those components of the gas combustion device which connect to the gas valve to control the gas flow. It is also quite conceivable that part of the catalyst, in which the gas-air mixture flows in, can be provided with a bypass.

Um die Strömungsverhältnisse zu optimieren und gleichzeitig eine ausreichende Menge des Gas-Luftgemisches der Zündeinrichtung zukommen zu lassen, sind die Merkmale des Patentanspruchs 2 vorgesehen. Dabei wirkt die gasdurchlässige Abdeckung ähnlich einem Drosselventil, damit eine bestimmte Menge des Gas-Luftgemisches sicher und schnell auch über den Bypass an die Zündeinrichtung gelangt. Je größer die Gasdurchlässigkeit der ersten Abdeckung ist, je mehr an dem Gas-Luftgemisch wird der Kammer des Katalysators zugeführt und je weniger gelangt an die Zündeinrichtung.In order to optimize the flow conditions and at the same time a sufficient amount of Giving gas-air mixture to the ignition device are the features of the claim 2 provided. The gas-permeable cover acts like one Throttle valve, so that a certain amount of the gas-air mixture safely and quickly also reaches the ignition device via the bypass. The greater the gas permeability of the first Coverage is the more of the gas-air mixture becomes the chamber of the catalyst fed and the less reaches the ignition device.

Durch die Merkmale des Patentanspruchs 3 ist auch der Ausgang des Bypasses von einer zweiten gasdurchlässigen Abdeckung begrenzt, die in Abstimmung mit der ersten Abdekkung in ihrer Durchlässigkeit so gewählt wird, daß immer noch genügend Gas-Luftgemisch über den Bypass an die Zündeinrichtung gelangt. Diese zweite Abdeckung hat auch den Vorteil, daß die von der Zündeinrichtung fortschreitende Gasexplosion nicht über den Bypass in die Kammer des Katalysators, sondern nur von außen her über den den Katalysator umgebenden Raum an den Katalysator gelangt. Due to the features of claim 3, the output of the bypass is one second gas permeable cover, which is in coordination with the first cover The permeability is chosen so that there is still sufficient gas-air mixture reaches the ignition device via the bypass. This second cover also has that Advantage that the gas explosion proceeding from the ignition device does not pass through the bypass into the chamber of the catalyst, but only from the outside through the catalyst surrounding space reaches the catalyst.

Gemäß den Merkmalen des Patentanspruchs 4 bestehen die erste und zweite Abdeckung aus einem metallischen Sieb, dessen Durchlässe eine ausreichende Menge des Gas-Luftgemisches sowohl zum Katalysator wie zur Zündeinrichtung durchlassen. Auch das metallische Sieb der zweiten Abdeckung dient als eine Art Gasdurchflußbegrenzer, um nicht allzu viel Gas der Zündeinrichtung zukommen zu lassen. Die beiden Abdeckungen dienen auch als Verbesserung der Vermischung des Gas-Luftgemisches, wenn es durch die Abdeckungen strömt.According to the features of claim 4, the first and second cover from a metallic sieve, the passages of which are a sufficient amount of Allow the gas-air mixture to flow to both the catalytic converter and the ignition device. That too metallic screen of the second cover serves as a kind of gas flow restrictor so as not To give too much gas to the ignition device. The two covers serve also as an improvement in the mixing of the gas-air mixture when passing through the covers flows.

Durch die Merkmale des Patentanspruchs 5 entsteht eine besonders einfache Herstellung der mit dem Katalysator und der Abdeckung verbundenen Gaszuführeinrichtung, da diese leicht herstellbar und einfach montierbar ist.The features of claim 5 result in a particularly simple manufacture the gas supply device connected to the catalytic converter and the cover, since these is easy to manufacture and easy to assemble.

Die Merkmale des Patentanspruchs 6 ermöglichen auch eine einfache Herstellung des Bypasses an der Gaszuführeinrichtung, indem lediglich seitlich an der Bohrung ein Schlitz ausgebildet ist, der an seiner Öffnung von der zweiten Abdeckung begrenzt wird.The features of patent claim 6 also enable simple manufacture of the bypass on the gas supply device by merely forming a slot on the side of the bore which is bounded by the second cover at its opening.

Nach den Merkmalen des Patentanspruchs 7 wird durch die einteilige Ausbildung der ersten und zweiten Abdeckung als Abdeckteil die Herstellung, die Teilebevorratung und Montage des Gerätes erheblich vereinfacht. Das senkt die Kosten des Gerätes.According to the features of claim 7, the one-piece design of the first and second cover as a cover part the manufacture, parts storage and assembly of the device considerably simplified. This lowers the cost of the device.

Die Merkmale des Patentanspruchs 8 lassen eine einfache Verbindung des Katalysators mit der Abdeckung und der Gaszuführeinrichtung zu, indem sich die Abdeckung auf der Gaszuführeinrichtung und der Katalysator wiederum auf der Abdeckung zentriert. Auf diese Weise kann der Katalysator fest mit der Gaszuführeinrichtung, beispielsweise über eine Verschraubung, Verklebung, plastische Verformung oder sonst eine allgemein bekannte Befestigungsvorrichtung, verbunden werden.The features of claim 8 allow a simple connection of the catalyst the cover and the gas supply device by placing the cover on the gas supply device and the catalyst is again centered on the cover. In this way the catalyst can be fixed to the gas supply device, for example via a screw connection, Gluing, plastic deformation or any other known fastening device, get connected.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen:

Fig. 1
einen Teillängsschnitt durch einen gasbetriebenen Lockenstab gemäß der Schnittführung Y-Y nach Fig. 2, bei dem lediglich die mit dem Katalysator verbundene Gaszuführeinrichtung, das Warmluftrohr und ein Sockelteil dargestellt sind,
Fig. 2
einen Schnitt quer durch den gasbetriebenen Lockenstab gemäß der Schnittführung X-X nach Fig. 1,
Fig. 3
eine perspektivische Darstellung auf den Katalysator mit seiner Gaszuführeinrichtung und den angebrachten Elektroden und
Fig. 4
eine perspektivische Darstellung auf das aus erster und zweiter Abdeckung bestehende Abdeckteil.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it:
Fig. 1
3 shows a partial longitudinal section through a gas-operated curling iron in accordance with the cut YY according to FIG. 2, in which only the gas supply device connected to the catalytic converter, the warm air pipe and a base part are shown,
Fig. 2
FIG. 2 shows a section across the gas-operated curling iron according to section XX in FIG. 1,
Fig. 3
a perspective view of the catalyst with its gas supply device and the electrodes and attached
Fig. 4
a perspective view of the cover part consisting of the first and second cover.

In den Figuren 1 bis 3 besteht der teilweise nur dargestellte Lockenstab oder Haarcurler 1 aus einem mit am Umfang verteilten Durchlässen 2 versehenen Rohr 3, in dessen Kammer 4 ein aus einem gitterförmigen Material bestehender rohrförmiger Katalysator 5 angeordnet ist. Das wärmeluftdurchlässige Rohr 3 ist auf einem an einem Sockel 6 ausgebildeten Zentrierzapfen 7 aufgeschoben und dort zentriert. Dabei schlägt das freie Ende 8 des Rohres 3 an einer am Sockel 6 ausgebildeten Stimfläche 9 an und ist in dieser Stellung über in der Zeichnung nicht dargestellte Betätigungsmittel ortsfest mit dem Sockel 6 verbunden. Der Sockel 6 ist vorzugsweise aus einem aus temperaturbeständigem Kunststoff ausgeformten Plastikteil hergestellt. Der Sockel 6 dient als Aufnahme einer in der Zeichnung nicht dargestellten Zündeinrichtung, einer Ventileinrichtung und einer in einem Handgriff ausgebildeten Gaskartusche mit Gehäuse, so wie dies bei dem eingangs beschriebenen Gerät der Fall ist.In FIGS. 1 to 3 there is the curling iron or hair curler 1, which is only partially shown from a tube 3 provided with circumferentially distributed passages 2, in its chamber 4, a tubular catalyst 5 consisting of a grid-shaped material is arranged is. The heat-permeable tube 3 is on a centering pin formed on a base 6 7 pushed on and centered there. The free end 8 of the tube 3 strikes to a formed on the base 6 end face 9 and is in this position in the Drawing, not shown, actuating means fixedly connected to the base 6. The Base 6 is preferably formed from a temperature-resistant plastic Plastic part made. The base 6 serves as a receptacle not shown in the drawing Ignition device, a valve device and one formed in a handle Gas cartridge with housing, as is the case with the device described above.

An dem Sockel 6 ist nach den Figuren 1 bis 3 ein Zentrierdorn 10 ausgebildet, an dessen Außenfläche 11 eine Gaszuführeinrichtung 12 zentriert und dichtend befestigt ist. Ober in der Zeichnung nicht dargestellte Befestigungsmittel ist die Gaszuführeinrichtung 12 mit dem Sockel 6 fest verbunden. Die Gaszuführeinrichtung 12 besteht im wesentlichen aus einem Zentralrohr 13, dessen Bohrung 14 sich von rechts nach links bis zu einer Stufe 15 konisch verjüngt, was für bessere Strömungs- und Mischungsverhältnisse des Gas-Luftgemisches sorgt. Von der Stufe 15 an verläuft dann die Bohrung 14 mit konstantem Durchmesser bis zum ausgangsseitigen freien Ende 16 des Zentralrohres 13.According to FIGS. 1 to 3, a centering mandrel 10 is formed on the base 6, on its base Outer surface 11, a gas supply device 12 is centered and fastened in a sealing manner. Ober in the Fastening means, not shown, is the gas supply device 12 with the Socket 6 firmly connected. The gas supply device 12 consists essentially of a Central tube 13, the bore 14 is tapered from right to left up to a step 15 tapered, which results in better flow and mixing ratios of the gas-air mixture provides. From stage 15 onwards, the bore 14 then runs with a constant diameter to the free end 16 of the central tube 13 on the output side.

An dem ausgangsseitigen freien Ende 16 der Gaszuführeinrichtung 12 sind insbesondere nach den Figuren 2 und 3 drei am Umfang verteilte Arme 17, 18, 19 ausgebildet, die an ihrem vorderen Ende eine auf gleicher Höhe liegende Anschlagfläche 20 (Fig. 3) aufweisen. In particular, at the outlet-side free end 16 of the gas supply device 12 according to Figures 2 and 3 three arms 17, 18, 19 distributed on the circumference formed on their have a stop surface 20 (FIG. 3) at the same height at the front end.

An der Anschlagfläche 20 liegt ein vom rohrförmig ausgebildeten Katalysator 5 sich senkrecht weg erstreckender Ringbund 21 an, der im Bereich der Arme 17, 18, 19 radial hervorstehende Befestigungsarme 22, 23, 24 aufweist. Die Befestigungsarme 22, 23, 24 sind mit Löchern 25, 26, 27 versehen, die von aus den Armen 17, 18, 19 hervorstehenden Stiften 28, 29, 30 durchdrungen sind. Auf diese Weise wird der Katalysator 5 auf der Gaszuführeinrichtung 12 zentriert und ortsfest gehalten. Die Befestigung des Katalysators 5 auf der Gaszuführeinrichtung 12 erfolgt dadurch, daß die Stifte 28, 29, 30, nachdem sie die Löcher 25, 26, 27 gemäß den Figuren 1 bis 3 durchdrungen haben, derart mechanisch verformt werden, daß sie ähnlich einem Niet eine formschlüssige Verbindung herstellen. In der Zeichnung ist der Zustand kurz vor der Verformung dargestellt. Um die Verformung leichter zu ermöglichen, sind die Enden der Stifte 28, 29, 30 mit Schrägflächen 63, 64, 65 versehen.On the stop surface 20 is a tubular catalyst 5 formed vertically away extending collar 21 which protrudes radially in the region of the arms 17, 18, 19 Fastening arms 22, 23, 24. The mounting arms 22, 23, 24 are with Provide holes 25, 26, 27, which by pins 28 protruding from the arms 17, 18, 19, 29, 30 are penetrated. In this way, the catalyst 5 is on the gas supply device 12 centered and held stationary. The attachment of the catalyst 5 on the gas supply device 12 takes place in that the pins 28, 29, 30 after they have drilled the holes 25, 26, 27 have penetrated according to FIGS. 1 to 3, are mechanically deformed in this way, that they create a positive connection like a rivet. In the drawing the state is shown shortly before the deformation. To make the deformation easier enable, the ends of the pins 28, 29, 30 are provided with inclined surfaces 63, 64, 65.

Nach Fig. 1 ist in die Bohrung 32 des freien Endes 31 des Katalysators 5 eine Kappe 33 eingesetzt, die aus dem gleichen Siebmaterial besteht wie der Katalysator 5. Am freien Ende 31 des Katalysators 5 stehen feine Drahthärchen 34 hervor, die beim Zündvorgang aufgrund ihrer geringen Masse als Starthilfe dienen und so den Katalysator 5 selbst auf einfache und schnelle Weise auf seine Glühtemperatur bringen. Nach Fig. 2 ist das Rohr 3 im Querschnitt im wesentlichen oval ausgebildet und weist eine von der Innenwand 66 nach innen bis in Nähe des Katalysators 5 reichende, gekrümmte Wand 35 auf, die einen gegenüber dem Katalysator 5 vor Wärmestrahlung teilweise schützenden Thermostaten 36 teilweise abdeckt. Der Thermostat 36 wie die Wand 35 verlaufen in Längsrichtung und parallel zum Katalysator 5.1 is a cap 33 in the bore 32 of the free end 31 of the catalyst 5 used, which consists of the same screen material as the catalyst 5. At the free end 31 of the catalytic converter 5 protrude fine wire hairs 34 which are due to the ignition process their small mass serve as a starting aid and so the catalyst 5 itself on simple and bring it to its annealing temperature quickly. 2, the tube 3 is in cross section is essentially oval and has one from the inner wall 66 inwards to in Proximity of the catalyst 5 reaching, curved wall 35, one opposite the Catalytic converter 5 partially covers thermostats 36 that partially protect against heat radiation. The thermostat 36 and the wall 35 run in the longitudinal direction and parallel to the catalytic converter 5th

In den Figuren 1 und 3 verläuft von rechts ein mit Abwinkelungen 67, 68 versehener Blechstreifen 37, dessen einer Abschnitt 69 bis in Höhe der Arme 17, 18, 19 verläuft und dort abgewinkelt mit einer Pfeilspitze 38 endet. In geringem Abstand ragt ein an der Gaszuführeinrichtung 12 ausgebildeter seitlich angeordneter und im Durchmesser dünner Zapfen 39 hervor. Der Zapfen 39 bildet mit der Pfeilspitze 38 die Zündelektroden der Zündeinrichtung, über die, wenn beispielsweise an dem Blechstreifen 37 genugend none Spannung angelegt wird, ein oder mehrere Funken zum Zapfen 39 überschlagen. Über nicht dargestellte Isoliermittel ist selbstverständlich der Blechstreifen 37 gegenüber der: Gaszuführeinrichtung 12 und den Gehäuseteilen des Lockenstabs 1 isoliert. In FIGS. 1 and 3, a sheet metal strip provided with bends 67, 68 runs from the right 37, one section 69 of which extends to the level of the arms 17, 18, 19 and is angled there ends with an arrowhead 38. At a short distance protrudes from the gas supply device 12 trained laterally arranged and thin in diameter 39 pin out. The pin 39 forms with the arrowhead 38 the ignition electrodes of the ignition device, over which, if, for example, sufficient voltage is not applied to the metal strip 37 one or more sparks overturn the pin 39. About insulating agent, not shown of course, the sheet metal strip 37 is opposite the: gas supply device 12 and the housing parts of the curling iron 1 isolated.

An dem zylindrischen Abschnitt der Bohrung 14 ist in der Gaszuführeinrichtung 12 ein Bypass 40 ausgebildet, der von einer zweiten, aus einem Drahtgitter bestehenden Abdeckung 41 nach außen begrenzt ist. Die zweite Abdeckung 41 beschreibt, wie dies insbesondere Fig. 4 deutlich zeigt, einen Teil eines Hohlzylinderausschnittes; zu ihr verläuft die Fläche der Austrittsöffnung des Bypasses 40 parallel, ist also gleichermaßen gekrümmt. Der Bypass 40 weist eine Einlaßöffnung 42 und die Auslaßöffnung 43 auf, wobei die Auslaßöffnung 43 an die zweite Abdeckung 41 angrenzt. Eine quer zur zweiten Abdeckung 41 verlaufende, den Ausschnitt einer Ringscheibe bildende Krempe 44 verläuft nach Fig. 4 vom Rand 45, 46 seitlich weg, wobei die Mittelaches 70 der Krempe 44 gleichzeitig die Mittelachse 70 der zweiten Abdeckung 41 ist. An die Krempe 44 schließt sich eine topfförmige erste Abdeckung 47 an.At the cylindrical section of the bore 14 there is a bypass in the gas supply device 12 40 formed by a second cover consisting of a wire mesh 41 is limited to the outside. The second cover 41 describes how this is particularly so Fig. 4 clearly shows part of a hollow cylinder section; the surface of the Outlet opening of the bypass 40 is parallel, so it is equally curved. The bypass 40 has an inlet opening 42 and the outlet opening 43, the outlet opening 43 at the second cover 41 is adjacent. A transverse to the second cover 41, the 4 of the rim 45, 46 extends laterally away, the central axis 70 of the brim 44 simultaneously the central axis 70 of the second Cover 41 is. A cup-shaped first cover 47 adjoins the brim 44.

Die erste Abdeckung 47 bildet mit ihrer Krempe 44 im wesentlichen ein Gebilde 62 mit einem Hut mit Rand, allerdings ist die Krempe 44 an zwei Stellen 48, 49 eingeschnitten und dieser Teil, der die zweite Abdeckung 41 bildet, ist rechtwinklig zur Krempe 44 nach unten über die Biegelinie 50 gebogen und formt so einen Lappen 61. Im noch nicht abgewinkelten Zustand steht allerdings bereits die im Querschnitt im wesentlichen rechteckförmige zweite Abdeckung 41, also der Lappen 61, bereits am Rand 51 der Krempe 44 radial nach außen hervor, um später im umgebogenen Zustand den gesamten Querschnitt der Auslaßöffnung 43 abzudecken. Es ist aber auch durchaus denkbar, daß nur ein Teil der zweiten Abdeckung 41 die Fläche der Auslaßöffnung 43 abdeckt, wenn bereits auch dadurch genügend Gas-Luftgemisch an die Elektroden 38, 39 gelangt und dabei ebenso ausreichend viel Gas-Luftgemisch vor dem Zündvorgang in den Raum 52 und von dort über die gasdurchlässigen Öffnungen 53 des Katalysators 5 in die Kammer 4 einströmt.With its brim 44, the first cover 47 essentially forms a structure 62 with a Hat with border, however the brim 44 is cut in two places 48, 49 and this part, which forms the second cover 41, is perpendicular to the brim 44 downwards bent over the bending line 50 and thus forms a tab 61. In the not yet angled However, the state is already the second, which is essentially rectangular in cross section Cover 41, that is, the tab 61, already at the edge 51 of the brim 44 radially outward to later the entire cross section of the outlet opening in the bent state 43 to cover. But it is also quite conceivable that only part of the second cover 41 covers the area of the outlet opening 43, even if this is enough Gas-air mixture arrives at the electrodes 38, 39 and at the same time is sufficient Gas-air mixture before the ignition process in room 52 and from there via the gas-permeable Openings 53 of the catalyst 5 flows into the chamber 4.

An dieser Stelle sei noch erwähnt, daß in Fig. 3 ein Ausschnitt 54 an der Oberfläche des Katalysators 5 in vergrößertem Maßstab vorgenommen wurde, um zu zeigen, daß die Wand des Katalysators 5 mit vielen kleinen Öffnungen 53, beispielsweise als Drahtgeflecht, versehen ist, durch die das Gas-Luftgemisch vor dem Zündvorgang in die Kammer 4 eintreten Kann. Gleiches gilt für die erste und zweite Abdeckung 47, 41, die zu einem einzigen Abdeckteil 55 zusammengefaßt sind und bei denen das Material ebenfalls gitterförmig mit kleinen Durchlässen 56 ausgebildet ist. Das Abdeckteil 55 ist ein Stanz-, Biege- und Prägeteil, vorzugsweise aus feinem Drahtgewebe. At this point it should be mentioned that in Fig. 3 a cutout 54 on the surface of the Catalyst 5 was made on an enlarged scale to show that the wall of the catalyst 5 with many small openings 53, for example as a wire mesh through which the gas-air mixture enter the chamber 4 before the ignition process Can. The same applies to the first and second covers 47, 41, which form a single cover part 55 are summarized and in which the material is also lattice-shaped with small Passages 56 is formed. The cover part 55 is a stamped, bent and stamped part, preferably made of fine wire mesh.

Die erste Abdeckung 47 weist einen zylindrischen Abschnitt 57 auf, der sich an dem Außendurchmesser 58 des freien Endes 16 der Gaszuführeinrichtung 12 zentriert. Dabei deckt der sich an den zylindrischen Abschnitt 57 anschließende scheibenförmige Abschnitt 59 die Eingangsöffnung 60 des Katalysators 5 in diesem Bereich und die Bohrung 14 vollständig ab, so wie dies die Fig. 1 zeigt. Da die Einlaßöffnung 60 des Katalysators 5 größer ist als der Außendurchmesser des freien Endes 16 des Zentralrohres 13 entsteht eine ringförmige Ein- bzw. Auslaßöffnung 71, über die Gas-Luftgemisch ebenfalls in den oder aus dem Raum 52 des Katalysators 5 treten kann.The first cover 47 has a cylindrical section 57, which is located on the outer diameter 58 of the free end 16 of the gas supply device 12 is centered. The covers disc-shaped section 59 adjoining cylindrical section 57 is the entrance opening 60 of the catalyst 5 in this area and the bore 14 completely, as shown in FIG. 1. Since the inlet opening 60 of the catalyst 5 is larger than that The outer diameter of the free end 16 of the central tube 13 creates an annular or outlet opening 71, via the gas-air mixture also into or out of space 52 of the catalyst 5 can occur.

Die Wirkungsweise der katalytischen Gasverbrennungseinrichtung für einen Lockenstab bzw. einen Haarcurler 1 ist folgende:The operation of the catalytic gas burner for a curling iron or a hair curler 1 is as follows:

Zunächst wird ein in der Zeichnung nicht dargestelltes Gasventil Ober ein am Sockel 6 drehbar oder verschiebbar angeordnetes Ventilbetätigungselement (nicht dargestellt) geöffnet. Gas strömt über die in der Zeichnung nicht dargestellte Gaskartusche durch die Ventileinrichtung, mischt sich mit Luft und gelangt dann über einen in der Zeichnung im Sockel 6 ausgebildeten Kanal (nicht dargestellt) in die Bohrung 14 der Gaszuführeinrichtung 12 und wird dort beschleunigt (konisch verjüngender Bohrungsabschnitt 14 dient als Venturidüse). Das Gas-Luftgemisch strömt nun einerseits durch den scheibenförmigen Abschnitt 59 in den Raum 52 des Katalysators 5 und andererseits auch über die Einlaßöffnung 42 in den Bypass 40 zur Auslaßöffnung 43 und von dort in die die Außenfläche des Katalysators 5 umgebende Kammer 4. Da die Spitzen der Zündelektroden 39, 40 dem Bypass 40 benachbart sind, werden diese sofort nach Verlassen des Gas-Luftgemisches aus dem ausgangsseitigen Ende 16 der Bohrung 14 von dem Gas-Luftgemisch umströmt. Gleichzeitig gelangt das im Raum 52 befindliche Gas-Luftgemisch durch die Öffnungen 53 des Katalysators 5 in die Kammer 4, verteilt sich dort und strömt daher auch in Richtung der Zündelektroden 38, 39.First, a gas valve (not shown in the drawing) is rotatable on the base 6 or displaceably arranged valve actuating element (not shown) opened. Gas flows through the valve device via the gas cartridge, not shown in the drawing, mixes with air and then passes through one in the drawing in the base 6 trained channel (not shown) in the bore 14 of the gas supply device 12 and is accelerated there (tapered bore section 14 serves as a Venturi nozzle). The gas-air mixture now flows on the one hand through the disk-shaped section 59 into the Space 52 of the catalyst 5 and on the other hand also via the inlet opening 42 in the bypass 40 to the outlet opening 43 and from there into the surrounding the outer surface of the catalyst 5 Chamber 4. As the tips of the ignition electrodes 39, 40 are adjacent to the bypass 40, this immediately after leaving the gas-air mixture from the exit end 16 of the bore 14 flows around the gas-air mixture. At the same time this happens in the room 52 gas-air mixture located through the openings 53 of the catalyst 5 into the chamber 4, is distributed there and therefore also flows in the direction of the ignition electrodes 38, 39.

Bereits wenige Sekunden nach Öffnen der Gas-Ventileinrichtung kann nun ein in der Zeichnung am Sockel 6 seitlich befestigter Betatigungsknopf betatigt werden, um eine in der Zeichnung nicht dargestellte Zündanlage zu betätigen. Hierdurch wird hohe Spannung an den Blechstreifen 37 und somit auch an die Pfeilspitze 38 gelegt. Durch den Spannungsunterschied von der Pfeilspitze 38 zu dem gehäuseseitigen und mit der Erde verbundenen Zapfen 39 springen Funken (nicht dargestellt) von der Pfeilspitze 38 zum Zapfen 39 über, durch die das in der Umgebung der Zündelektroden 38, 39 befindliche Gas-Luftgemisch sofort zur Explosion gebracht wird.A few seconds after opening the gas valve device, you can now see in the drawing on the base 6 laterally attached actuation button to be operated in the To actuate drawing, not shown, ignition system. This creates a high voltage the metal strip 37 and thus also placed on the arrowhead 38. Because of the voltage difference from the arrowhead 38 to the housing-side and connected to the earth Pin 39 jumps sparks (not shown) from arrowhead 38 to pin 39, through the gas-air mixture in the vicinity of the ignition electrodes 38, 39 immediately is detonated.

Die Explosionswelle schreitet nunmehr von den Zündelektroden 38, 39 nach oben bis zu den Drahthärchen 34 hin, die aufgrund ihrer geringen Masse sofort zum Glühen gebracht werden, Von dort aus setzt sich über den Rand des freien Endes 31 des Katalysators 5 der Glühvorgang fort, bis der ganze Katalysator 5 glüht. Die katalytische Verbrennung hat eingesetzt und die durch die Verbrennung abgegebenen Verbrennungsgase strömen in der Kammer 4 entlang und treten letztendlich als noch heißes Gas aus den Durchlässen 2 des Rohres 3 nach außen heraus. Das Rohr 3 erwärmt sich und nach kurzer Zeit ist der Lockenstab 1 betriebsbereit, d.h., es können Haare um die Außenfläche des Rohres 3 gelegt werden, die dann erwärmt oder gar auch zusätzlich mittels einer im Lockenstab integrierten Verdampfereinrichtung (nicht dargestellt) befeuchtet werden, um auf schnelle Weise haltbare Locken in den Haarsträhnen bilden zu können.The explosion wave now proceeds from the ignition electrodes 38, 39 up to the Wire hairs 34, which due to their low mass are immediately made to glow, From there settles over the edge of the free end 31 of the catalyst 5 Annealing process continues until the entire catalyst 5 glows. Catalytic combustion has started and the combustion gases released by the combustion flow in the chamber 4 along and ultimately emerge as still hot gas from the passages 2 of the tube 3 outwards. The tube 3 heats up and after a short time is the curling iron 1 ready for operation, i.e. hair can be placed around the outer surface of the tube 3, which is then heated or even additionally by means of an evaporator device integrated in the curling iron (not shown) can be moistened to be durable in a quick manner To be able to form curls in the strands of hair.

Die Gas-Luftdurchlässigkeit der ersten und zweiten Abdeckung 47, 41 ist so bemessen, daß eine ausreichend große Menge an Gas-Luftgemisch in besonders kurzer Zeit an die Zündelektroden 38, 39 gelangt. Gleichzeitig gelangt auch eine ausreichende Gas-Luftmenge in den Raum 52 des Katalysators 5. Dieses Verhältnis der Gas-Luftgemischverteilung muß gut aufeinander abgestimmt sein, um auf der einen Seite den Explosionsvorgang zeitlich zu beschleunigen und ihn auch generell zu verbessern und um andererseits trotz des Bypasses 40 auch eine ausreichende katalytische Verbrennung im Katalysator 5 zu bewirken. Das im Betrieb über den Bypass strömende Gas-Luftgemisch versorgt dann zusätzlich die Kammer 4 mit Brennstoff, um eine besonders gleichmäßige katalytische Verbrennung auch an der Außenfläche des Katalysators 5 zu erhalten.The gas-air permeability of the first and second covers 47, 41 is dimensioned such that a sufficiently large amount of gas-air mixture to the ignition electrodes in a particularly short time 38, 39 arrives. At the same time, a sufficient amount of gas and air gets into the Space 52 of the catalytic converter 5. This ratio of the gas-air mixture distribution must be well matched be coordinated to accelerate the explosion process on the one hand and to improve it in general and on the other hand in spite of the bypass 40 also to cause sufficient catalytic combustion in the catalyst 5. That in Operation via the bypass gas-air mixture then additionally supplies the chamber 4 with fuel to ensure a particularly uniform catalytic combustion even at the Obtain outer surface of the catalyst 5.

Nach erfogter Behandlung der Haare einer Bedienungsperson durch den Lockenstab 1 kann das Gasventil wieder geschlossen werden und die katalytische Verbrennung ist beendet, d.h., der Lockenstab 1, insbesondere aber das Rohr 3, kühlen sich wieder ab. Der Lokkenstab 1 kann zur Seite gelegt werden. An dieser Stelle sei noch erwähnt, daß an dem linken freien Ende des Rohres 3 eine Abschlußkappe (nicht dargestellt) vorhanden ist. Diese kann aber auch durch eine Verdampfereinrichtung (nicht dargestellt) ersetzt werden.After successful treatment of an operator's hair by the curling iron 1 can the gas valve is closed again and the catalytic combustion is ended, i.e. the curling iron 1, but especially the tube 3, cool down again. The Lokken staff 1 can be put aside. At this point it should be mentioned that on the left free end of the tube 3 there is an end cap (not shown). This can also be replaced by an evaporator device (not shown).

Claims (8)

  1. Catalytic gas combustion device for an appliance for personal use, in particular a hair shaping appliance, such as a curler (1) or hair dryer, with a gas supply device (12) and a catalyst (5) connected to the gas supply device (12) and with an ignition device (38, 39) which can be controlled by an ignition system and serves for igniting the gas/air mixture and therefore for initiating catalytic combustion at the catalyst (5), characterized in that the gas supply device (12) has a bypass (40) for branching off a gas part stream which flows onto the ignition device (38, 39).
  2. Catalytic gas combustion device according to Claim 1, characterized in that a first gas-permeable cover (47) is formed, downstream of the bypass (40), in the gas supply device (12).
  3. Catalytic gas combustion device according to Claim 1, characterized in that a second gas-permeable cover (41) is formed in the bypass (40).
  4. Catalytic gas combustion device according to Claims 2 or 3, characterized in that the first (47) and second (41) cover consist of a metallic screen.
  5. Catalytic gas combustion device according to Claims 2 and 3, characterized in that the gas supply device (12) consists of a tubular housing body with a bore (14) conducting the gas mixture, in that, furthermore, the catalyst (5) consists of a bowl-shaped screen body with an inlet orifice (60), in that the inlet orifice (60) is connected to the outlet-side end (16) of the bore (14), and in that the first gas-permeable cover (47) is formed at the transition from the outlet-side end (16) of the bore (14) to the inlet orifice (60).
  6. Catalytic gas combustion device according to Claim 5, characterized in that a slot is formed as a bypass (40) at the outlet-side end (16) of the bore (14) of the gas supply device (12), and in that the slot is covered from outside by the second cover (41).
  7. Catalytic gas combustion device according to Claims 5 and 6, characterized in that the first (47) and the second (41) cover consist of a single covering part (55), in that the first cover (47) consists of a structure (62) of essentially bowl-shaped cross section, with an adjoining annular flange (44), and in that the second cover (41) consists of a tab (61) angled on the flange (44).
  8. Catalytic gas combustion device according to Claim 7, characterized in that a bowl-shaped structure (62) of the first cover (47) of the covering part (55) is centred in the inlet orifice (60) of the catalyst (5), and in that the covering part (55) is positioned on the gas supply device (12) in such a way that, at the same time, the tab (61) covers the slot (40) as far as possible from outside, and in that, in this position, the catalyst (5) is fastened to the gas supply device (12).
EP01925428A 2000-06-03 2001-03-13 Catalytic gas combustion device for an appliance for personal use Expired - Lifetime EP1286607B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10027719A DE10027719A1 (en) 2000-06-03 2000-06-03 Catalytic converter for personal hair-setting appliance has ignition appliance, gas feeder, bypass, and two gas-permeable covers
DE10027719 2000-06-03
PCT/EP2001/002769 WO2001093719A1 (en) 2000-06-03 2001-03-13 Catalytic gas combustion device for an appliance for personal use

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EP1286607A1 EP1286607A1 (en) 2003-03-05
EP1286607B1 true EP1286607B1 (en) 2004-02-04

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EP (1) EP1286607B1 (en)
JP (1) JP2003534862A (en)
KR (1) KR100642097B1 (en)
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DE102005014951A1 (en) * 2005-04-01 2006-10-05 Braun Gmbh The hair styling appliance
US7841180B2 (en) * 2006-12-19 2010-11-30 General Electric Company Method and apparatus for controlling combustor operability
WO2016053429A1 (en) 2014-10-03 2016-04-07 Welles Clifford G Catalytic heating system and method for heating a beverage or food

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EP0100060B1 (en) * 1982-07-22 1987-11-25 PRINCE INDUSTRIAL DEVELOPMENT Co., Ltd. Catalyst combustion curling device
DE3485500D1 (en) * 1983-04-20 1992-03-19 Matsushita Electric Ind Co Ltd CATALYTIC COMBUSTION ARRANGEMENT.
JPS61194402U (en) * 1985-05-28 1986-12-03
DE3617218A1 (en) * 1986-05-22 1987-11-26 Braun Ag DEVICE FOR THE PERSONAL NEED
FR2606491B1 (en) * 1986-11-12 1989-03-03 Stepack IGNITION DEVICE FOR HIGH SPEED BURNER OF COLD NOZZLE TYPE AND BURNER USING THE SAME
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EP1286607A1 (en) 2003-03-05
KR20030004454A (en) 2003-01-14
KR100642097B1 (en) 2006-11-10
JP2003534862A (en) 2003-11-25
AU2001252186A1 (en) 2001-12-17
CA2410312A1 (en) 2001-12-13
WO2001093719A1 (en) 2001-12-13
US20030138750A1 (en) 2003-07-24
US6805552B2 (en) 2004-10-19
DE10027719A1 (en) 2001-12-13
DE50101446D1 (en) 2004-03-11
CA2410312C (en) 2009-11-17
ATE258756T1 (en) 2004-02-15

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