• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an electrical ignition device (2) for fuel in a heating device. This ignition device (2) comprises an electrical heating element (10) with a ceramic supporting body (12) for electrical resistance lines (11), which heating element (10) at least predominantly in a hollow profile (13) surrounding the heating element (10) outside and in the hollow profile (13) is held. At least one metallic holding element (15, 16) is fastened, in particular soldered or welded, on the lateral surface (14) of the ceramic supporting body (12), which holding element (15, 16) protrudes from the lateral surface (14) of the ceramic supporting body (12) and in one of the ceramic support body (12) facing away from the hollow profile (13) fixedly connected, in particular soldered or welded is a rigid, the lateral surface (14) of the ceramic support body (12) relative to the inner surface (17) of the hollow profile ( 13) distancing connection between the ceramic support body (12) and the hollow profile (13). Furthermore, the invention relates to a heating device equipped with this ignition device (2).
    公开号:AT511814A4
    申请号:T513/2012
    申请日:2012-04-27
    公开日:2013-03-15
    发明作者:Karl Stefan Riener
    申请人:Karl Stefan Riener；
    IPC主号:
    专利说明:

    1 25 16:42:32 27-04-2012 5/33
    The invention relates to an electrical ignition device for fuel in a heating device, as well as a heater equipped therewith, as stated in the claims 1 and 14.
    From the prior art, an electrically operated ignition device is known, which is provided by generating a hot air stream for the ignition of solid fuel, such as wood pellets. In this generic ignition device, a heating element, in particular an electrical resistance heater is provided, soft in one tubular heating elements arranged in the form of resistance lines aulweist. The ceramic support body has the required temperature resistance and insulates the electrical resistance leads with respect to electrically conductive peripheral elements. The tubular heating element is inserted in a metallic hollow pipe which forms an outer flow jacket around the tubular heating element. The heating element is, if necessary, detachable via one of its two stimuli, in particular pluggable, held in a ceramic plug-in socket. This plug-in socket also serves for electrically contacting the electrical resistance leads with a current supply line to the plug-in socket. The arranged inside the metallic hollow profile, ceramic socket for the heating element causes a constriction of the free flow cross section through the Hohfprofil, whereby the desired or required air flow is only partially achievable Moreover, the Positkmieigenauigkeit the heating element is hardly guaranteed with respect to the socket unsymmetrical or unequal flows around the heating element with supply air or ambient air lead to different cooling performance with respect to the heating element, which can cause performance impairments or at a N2012 / 01Θ00 07 tr A iom oi r > , a a Λ Λ F- J Λ Λ η 2 25 16:43:12 27-04-2012 6/33 heating element, which flows around unevenly, can lead to an increased risk of damage. In addition, the robustness of the electromechanical socket for the heating element is only slightly satisfactory. When mechanical loads against the elongated, tubular heating element may lead to breakage of the socket, which may result in further Foige to safety impairment due to insulation failure of the socket.
    The present invention has for its object to provide an improved electrical ignition device for fuel in a heater. In particular, it is an object of the present invention to provide an electrical ignition device which has increased mechanical robustness, has a long-term high ignition power and ignition ignition and yet is possible to produce as inexpensively. A further object of the invention is to provide a heating device with high functional reliability, which can be used as conveniently as possible.
    This object of the invention is achieved by a technically improved ignition device according to claim 1. It is advantageous that the heating element, in particular its ceramic support body, is held reliably and dimensionally stable in Hohlprofii. In particular, acting vibrations or shock loads can not lead to a positional deviation of the heating element or the ceramic support body. Due to the shock-resistant fixation of the heating element in the hollow body is always a proper flow around and cooling of the heating element with the air to be heated ensures this possible voliumfängli-che or uniform flow and cooling of the heating element or the ceramic support body favors the recoverable life, so that a longer-term functional Ignition device is achievable. In particular, gradual or shock-related deviations of the heating element from the desired position during operation of the ignition device or the heating device for solid fuels provided therewith are virtually eliminated. A further advantage of the measure according to the invention resides in the fact that the holder of the ceramic carrier body, starting from its lateral surface, reduces the free flow cross-section caused by this holder to a minimum N2012 / 01800 07 / λλ / nmn 1 c > , a r II. * ΓΙΛ "ΤΟ 3 25 16:43:57 27-04-2012 7/33 can be reduced. As a result, the flow resistance in the air inlet section of the ignition device or the ceramic support body is kept relatively low with respect to the air to be supplied to be heated. By eliminating a ceramic Stecksockeis for holding and for electrical contacting of the heating element and the cost of producing an electrical ignition device according to the invention can be kept as low as possible. In addition, the specified ignition device provides increased protection against electrical insulation failure after a brittle, fragile socket for releasably holding and contacting the electric heating element is unnecessary In addition, mechanical shock loads can not lead to a deviation of the heating element from the planned position, so that a reliable function and a planned heating or ignition performance is guaranteed
    The advantage here is a development according to claim 2, characterized in that the Positi onsbeständigkeit or the fixing accuracy and also the holding force of the heating element with respect to the surrounding hollow test is further improved
    An expedient measure mm connecting or attaching the at least one metallic retaining element to the ceramic support body is specified in claim 3. This allows a high-strength connection between the ceramic support body and the at least one metallic Halteetement be constructed. In particular, this makes it possible to dispense with mountings based on clamping forces or form-locking connections. Furthermore, it is advantageous that such surface coatings do not reduce the cross section of the ceramic support body, so that the risk of a notch breaking effect is minimized or excluded and a high degree of robustness of the heating element is achieved.
    An alternative embodiment of metallic Befestigungsmittein is specified in claim 4. This makes it possible to build a stable connection between the ceramic support body and the fastener, without requiring technologically demanding coating process for the ceramic substrate for the application of metallic surface layers. N2012 / 01800 4 25 16:44:41 27-04-2012 8/33
    The measures according to claim 5 are also advantageous, since a reliable or temperature-stable connection can be established even with the use of soldered joints between the ceramic support body and the metallic holding element, in particular an excessive heating of a soldering or Joint connection between the Haiteeiement and the ceramic support body held back, so that a reliable connection of the metallic support member is ensured to the ceramic support body of the heating element
    Of particular advantage are also the measures according to claim 6, since characterized the electrical supply lines are fixed directly to the ceramic support body of the heating element, in particular electrically contacted with the resistance lines. The direct welding or soldering with the electrical resistance lines or low-resistance leads to the electrical resistance lines is also the functi-onszuveriäßigkeit and safety in terms of safety-critical Spannungsbeaufschlagungen of metallic components in the vicinity of the heating element In particular, this can increase the electrical safety of the ignition device.
    Furthermore, the measures according to claim 7 are advantageous, since thereby an exact centering of the heating element in the interior of the hollow profile can be achieved especially when using a cylindrical Hohiprofils In addition, the recoverable with two opposing support elements stability is so high that even with external force effects the scheduled Positioning of the heating element in the hollow profile remains ensured. In addition, a reduction of the free flow cross-section in the hollow profile can thereby be kept low.
    Also advantageous are the measures according to claim 8, since thereby the free flow cross section within the Hohiprofils is hardly or as little as possible affected by the holding elements. In addition, due to the punctiform support of the legs of the retaining bracket on the ceramic support body, a heat
    N 2012 / 01BOO Λ · 1 J Λ I ΙΛΛ-Α 5 25 16:45:24 27-04-2012 9/33 transfer to the retaining bracket and subsequently to the surrounding hollow profile at the back or minimized distanced to each other, selective support of the ceramic support body with respect to the headband ensures a stable support or orientation of the heating element after this double or multiple support could stand even unilateral forces or torques improved stood.
    In the measures according to claim 9 is of advantage that the base portion of the Haitebügel is dissociated to the ceramic support body so that the heat transfer to the outer Hohlprofü is minimized. Another advantage of this design is that the relatively large base portion can be used for stable connection with the HohlprofH and also a simple connection between headband and hollow profile is possible
    In the measures according to claim 10 is of advantage that the headband ensure automatic centering of the heating element With respect to the outer Hohlpiofii, so that the mounting or Herstellungsaulwand is minimized
    The measures according to claim 11, a simple, efficient and high-strength connection between the hollow profile and the inner heating element is created in an advantageous manner.
    In this case, a further development according to claim 12 is advantageous, since in this way the expenditure and thus the costs for the production of the ignition device can be kept as low as possible. In particular, this allows a rational assembly or attachment of the heating element within the hollow profile.
    Finally, the measures according to claim 13 are also advantageous, since thereby the air throughput is sufficiently strong or relatively high even with low induced draft or negative pressure conditions. In particular, unilateral heating or sections of overheating of the heating element are thereby prevented, thereby increasing the reliability of the function the achievable duration of use of the ignition device is improved. This is made possible above all by the provision of a separate holding and contacting base or by the specified holder of the ceramic Achieved supporting body via the lateral surface, as well as achieved by the direct electrical contacting of the resistance lines.
    The last-mentioned object of the invention is achieved by a heating device according to claim 14. The achievable advantageous effects and technical effects can be found in the preceding and the following description parts.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures
    In each case, in a highly simplified, schematic representation:
    1 shows an embodiment of a heating device, in particular a pellet stove with an electrical ignition device for the fuel;
    FIG. 2 shows the combustion chamber of a heating device equipped with the electrical ignition device for the fuel; FIG.
    3 shows an embodiment of the electric ignition device according to the invention in a perspective view;
    FIG. 4 shows the ignition device according to FIG. 3 in longitudinal section; FIG.
    5 shows the heating element of the ignition device according to FIG. 3 in a perspective view;
    FIG. 6 shows the heating element according to FIG. 5 in side view; FIG.
    7 shows the heating element according to FIG. 5 in a view according to arrow VII in FIG. 6.
    By way of introduction, it should be noted that in the differently described Ausfh-rungsfbrmen the same parts are provided with the same reference numerals and the same Bauteübe drawings, wherein the throughout the description contained N2012 / 01800 7 25 16:46:41 27-04-2012 11 / 33 revelations can be mutatis mutandis transferred to the same parts with the same reference numerals or identical component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the directly described and dargestelite figure and these position information in a change in position mutatis mutandis transferred to the new location.
    An exemplary embodiment of a heating device 1 with an electrically operated ignition device 2 for fuel is illustrated in FIGS. In this case, this heating device 1 is formed by an oven for combustion or combustion of solid fuels, preferably biomass. In particular, the heating device 1 may be formed by a so-called stove, which, among other things, also meets high aesthetic demands. The corresponding biomass is preferably formed by pellets, but may also be defined by logs or by wood chips. In principle, the ignition device 2 described in detail below is designed and provided for the purpose of indicating biomass pellets, in particular HoizpeUets. After appropriate firing or ignition of pellets or the like via the ignition device 2, of course also firewood or the like can be fired with the heating device 1, to this case are the pellets or other, relatively easily inflammable firelighters in conjunction with the electrically operated ignition device 2 to be understood as an automated or automated ignition system.
    The heating device 1 serves primarily to provide heat in order to preferably heat living spaces. The corresponding heating device 1 is erected directly in the living area and releases appropriate heat by radiant heat or convective heat into the environment by heating to a corresponding extent the room or ambient air to the heater 1 It is also possible, the heater 1 Warmhaftefächer or To assign bakery units, or to provide heat exchanger elements to allow hot water preparation for heating or service water.
    N2Q12J0180D 8 25 8 25 12/33 16:47:23 27-04-2012
    The heating device 1 comprises a substantially parallelepiped-shaped housing in which a combustion chamber 3 for combustion of preferably solid fuel based on biomass is fluffed out. The heating device 1 may include a supply air control device 5, via which the combustion chamber 3 supplied combustion air is regulated mainly manually and / or automated Furthermore, an unillustrated flue gas blower can be provided, which dissipates by suction the flue gases formed in the combustion chamber 3 and passes into a flue gas fireplace. This flue gas fan also has an influence on the combustion air supply or on the throughput of Veibrennungsiuft via the supply air control device. 5
    Preferably, the ignition device 1 is used in conjunction with a heater 1 for the combustion of wood pellets. Such a pellet heating device 1 has, in the combustion chamber 3, as known per se, a receiving depression or a receiving dish 6 for the pellets intended for combustion. The corresponding receiving depression or receiving sheath 6 is in this case positioned in the lower section of the combustion chamber 3. This receiving depression or receiving bowl 6 can be charged with the quantity of pellets to be incinerated by means of a fuel delivery device 7, which comprises, for example, a sloping pellet chute 8.
    The ignition device 2 is assigned to the receiving tray 6 or the corresponding receiving recess for fuel within the combustion chamber 3 such that their hot-lift current can ignite the pellets intended for combustion. It is expedient here if a hot air end section 9 of the ignition device 2 projects directly into the receiving recess or receiving shed 6 for the pellets to be burnt
    The ignition device 2 operates according to the hot-air principle, wherein the air heated by means of the ignition device 2 can cause ignition of the fuel, in particular of the pellets, in the receiving depression or receiving sheath 6. After ignition of these pellets, it is possible and expedient to deactivate the electrically operated ignition device 2 and a continuance of the combustion process by means of controlled or controlled supply of pellets to N2012 / D1600 25 16:48:06 27-04-2012 13/33 guarantee.
    The ignition device 2 thus represents an automatic ignition device for the fuel. The ignition device 2 is based on the hot air principle, ambient or room air is passed through the ignition device 2 and is strongly heated by at least one electric heating element 10, in particular to a temperature from about 300 ° C to 600 ° C is heated. Typically, the temperature of the Heißiuftstromes on the outlet side 42 of a manually and / or control technology activatable heating element 10 between about 360 ° C and 450 ° C. This is sufficient to ignite biomass, in particular wood pellets, located in the receiving recess or in the receiving sheath 6. It is expedient here to build up the corresponding air flow through the ignition device 2 by means of a negative pressure generated in the combustion chamber 3 compared to the ambient pressure of the heating device 1. Preferably, one of the heater 1 associated, not shown flue gas blower for generating negative pressure in the combustion chamber 3. This ambient air or room air is also sucked through the ignition device 2 and heated by the at least one electric heating element 10. The resulting hot air is subsequently to Ignition of the wood pellets, not shown, located in the receiving cavity or receiving tray 6.
    An advantageous embodiment of the ignition device 2 is illustrated by way of example in FIGS. This ignition device 2 comprises at least one electrical heating element 10 which has electrical resistance lines 11. These electrical resistance lines 11 represent heating resistors or heating cables which heat when exposed to electrical energy and consequently convert the electrical energy into thermal energy. This represents a fundamental, technological difference to high voltage igniters based on sparks, or to flame ignitions, for example based on combustible gases. N2012 / D1800 10 25 16:48:48 27-04-2012 14/33
    The heat energy emanating from the electrical resistance lines 11 is used for air heating, in particular for hot air generation. The electrical resistance lines 11 are supported on or preferably in a ceramic support body 12. The ceramic supporting body 12 for the resistance lines 11 fulfills not only its carrying or holding function but also an electrical insulation function. In addition, the ceramic support body 12 provides good heat resistance, so that it can also reliably absorb, position and mutually insulate even high-resistance resistor lines 11. In addition, the ceramic support body 12 also has an electrical insulation function with respect to peripheral sections or with respect to metallic or electrically conductive components in the vicinity of the ignition device 2.
    The electrical heating element 10 of the ignition device 2 thus comprises at least the ceramic support body 12, in which a plurality of electrical resistance lines 11 are cast or received. At least such a heating element 10 is accommodated, at least for the most part, in a hollow profile 13 surrounding the outside of the heating elements 10 and is held in a positionally stable manner in or from the hollow profile 13.
    It is expedient to carry out the hollow profile 13 tubular, in particular hohytytindrisch. Analogously, it is expedient if the ceramic support body 12 for the Widerstandsiefungen 11 tubular, in particular hohytytindrisch formed and arranged concentrically to the hollow section 13. The hollow section 13 is suitably formed of a metallic material, in particular of stainless steel
    As can best be seen from a combination of FIGS. 3 to 7, the heating element 10 or its ceramic supporting body 12 is supported starting from its lateral surface 14 relative to the hollow profile 13. For this purpose, at least one metallic holding element 15 is provided on the lateral surface 14 of the ceramic carrier body 12 , 16 fastened in particular soldered or welded The at least one holding element 15,16 protrudes from the lateral surface 14 of the ceramic Tragkörpere 12 and thus forms a projection or an Er N2012 / 01800 ΛΤ / rt 4 / ΛΛ4 Λ 4 Λ P4 k » 11 25 16:49:31 27-04-2012 15/33 in relation to the preferably cylindrical lateral surface 14 of the ceramic support body 12. The at least one holding element 15, 16 is fixedly connected to the hollow profile 13 in a section remote from the ceramic carrier body 12. In particular, the Haiteelement 15,16 for the ceramic support body 12 with the Hohiprofii 13 fixed or undetachably connected, in particular soldered or welded together. By the at least one Haiteelement 15,16, wherein preferably two with respect to the lateral surface 14 opposite Haiteelemente 15,16 are provided, is a rigid or non-destructive non-releasable attachment between the heating element 10 and its ceramic support body 12 and the hollow profile 13 formed. In particular, a rigid, the lateral surface 14 of the ceramic support body 12 with respect to the inner surface 17 of the hollow section 13 distancing connection between the ceramic support body 12 and the Hohiprofii 13 is formed as best seen in FIG. The heating element 12 or its ceramic support body 12 is thus thus via the holding elements 15,16, which act on the lateral surface 14 of the ceramic support body 12, virtually trapped inside the Hohlprofiis 13 or penned in particular relatively directly against the inner surface 17 of the hollow profile thirteenth supported.
    For fixed connection of at least one holding element 15,16 with the ceramic support body 12, it is expedient if at least in a section of the lateral surface 14 of the ceramic support body 12 at least one Metalles Betesngungsminei lö, ib ausgeDinei isi, weicnes for ueaieiiianeii connecting, in particular for welding or Soldering is provided with the metallic retaining element 15,15
    According to an advantageous embodiment, it is provided to form the metallic fastening means 18, 19 by at least one metallic surface layer 18 ', 19 * on the ceramic support body 12, as shown in FIGS. 5, 6. This metallic surface layer 18 19' is present applied to the surface of the ceramic material of the supporting body 12. The metallic Oberflö- chenschicht 18 ', 19' is limited to the immediate vicinity of the holding elements 15,16. For application, any, from the state of N2012 / 01800 12 25 16:50:15 27-04-2012 16/33
    Technique known method for coating ceramic materials replaceable. For example, a metal vapor deposition method or a layered burn-in of different metal layers is applicable. The metallic surface layers 18 *, 19 'thereby represent a type of soldering pads or welding zones on the ceramic of the heating element 10 or the support body 12. A layer thickness of the surface layers 18', 19 'is typically less than 0.5 mm, in particular only a few hundredths of a millimeter.
    According to an alternative embodiment, it is possible to partially integrate or infuse at least one metallic attachment means 18, 19 into the ceramic carrier material, in particular into the ceramic substrate of the carrier body 12. The integration of the metallic fastening means 18,19 in the ceramic support body 12 is provided such that a portion of the surface of the metallic fastener 18,19 terminates approximately flush with the lateral surface 14 of the support body 12 as was illustrated in Fig. 4. Optionally, a relative to the lateral surface 14 slightly recessed or raised trained arrangement of surface portions of the metallic Befsstigungsmittels be 18.19 provided. It is essential that the fastening means 18, 19 implemented in the ceramic supporting body 12 or the surface layer 18 ', 19' applied to the ceramic form a connection point or a type of soldering pad for welding or soldering to the metallic holding element 15, 16. Alternatively, it is possible to partially integrate or infuse the at least one Hatteelement 15.18 in the ceramic substrate of the support body 12 and thereby to despise on separate fasteners 18,19.
    The ceramic support body 12 can be made elongated or rod-shaped, in particular tubular or hollow cylindrical. It is useful if the ceramic support body 12 within a first Längsabschnit-tes 20 has the at least one metallic support member 15,16 and within a second longitudinal section 21 a heating section 22 expands In this heating section 22, a comparatively high surface density of electrical resistance lines 11 is provided so that in the heating section 22 of the ceramic support body 12, when subjected to electrical energy, a relatively higher heat development occurs than in the first longitudinal section 20, in which the at least a holding element 15,16 is positioned. It is expedient if the second Längsabschnrtt 21, in particular the heating section 22 between 30% to 60%, preferably occupies about 40% to 50% of the total length of the ceramic support body 12 in particular it is expedient if the heating section 22 only in about half the length of the support body 12 is. The remaining portion of the ceramic support body 12 is defined by the first longitudinal portion 20, in which the holding element 15,16 and the metallic fastener 18,19 is positioned for the at least one Hatteelement 15,16.
    Electrical supply lines or supply lines 23,24 for the heating element 10 are preferably also in a remote from the heating section 22 or distant end portion of the support body 12 with the respective electrical resistance lines 11 fixed, in particular welded or soldered. In particular, ends of the supply lines 23, 24 or of a power cable are connected directly to the heating element 10, preferably soldered or welded to connection contacts 25, 26 of the resistance line 11. The connection contacts 25, 26 are preferably formed by soldering pads, which preferably proceed from the lateral surface 14 the ceramic support body 12 are accessible and thereby electrically contacted with the ends of the respective supply lines 23,24, preferably can be soldered.
    For operating the ignition device 2 or the heating element 10, electrical low voltage, in particular the mains voltage present in households of preferably 230 V AC, or optionally of 400 V AC, is provided. In particular, the electrical resistance lines 11 of the heating element 10 are heated by exposure to standard or in households usual mains voltage such that the biomass in the form of wood pellets can be ignited with the guided or sucked by the igniter 2 airflow. M2Q12 / 01800 14 25 16:51:42 27-04-2012 18/33
    According to an expedient embodiment, as illustrated in FIGS. 5 to 7, two retaining elements 15, 16 opposite one another with respect to the lateral surface 14 of the ceramic supporting body 12 may be formed. These retaining elements 15, 16 can be formed by longitudinally sectioned C-shaped or U-shaped retaining clips 27, 28. These in relation to their longitudinal section C- or U-shaped retaining bracket 27,28 are aligned parallel to the longitudinal extent of the ceramic support body 12 Legs 29,30 HaHebügel this 27, 28 are selectively supported on the lateral surface 14 of the support body 12. In particular, the legs 29,30 of the headband 27,28 with the integrated in the ceramic support body 12, metallic fasteners 18,19 or with the applied on the ceramic support body 12, metallic surface layers 1B ', 19' soldered or welded
    A connecting the legs 29, 30 base portion 31 of the bracket 27,28 is arranged by the selective support of the legs 29,30 relative to the lateral surface 14 of the ceramic support body 12 in the installed state of the heating element 10 and the ceramic support body 12 contacts at least one Part of the base portion 31 of the metal headband 27, 28 with the inner surface 17 of the hollow section 13, as best seen in FIG. 4 can be seen. In the non-installed or unloaded state - Fig. 5- While the base portion 31 may be slightly arcuately curved, so that the Hattebügel 27, 28 in the inserted into the Hohlprofii 13 state of the heating element 10 exert a resilient bias against the inner surface 17 and thereby a Tolerance compensation or a mounting relief and / or achieve a thermal expansion compensation.
    The longitudinally cut C- or U-shaped Haltebügei 27,28 can also center the ceramic support body 12 in the interior 32 of the outer or outer hollow profile 13. In addition, the two brackets 27, 28 support the ceramic support body 12 in the radial direction relative to the inner surface 17 of the hollow section 13 substantially free of play. As an alternative to a double arrangement of holding elements 15, 16 or retaining clip 27, 28, it is of course possible to provide three, three arranged distributed over the circumference of the ceramic supporting body 12 Provide retaining bracket.
    It is practicable if the at least one metallic holding element 15, 16 is welded over at least one opening 33, 34 in the outer boundary wall 35 of the hollow profile 13 with the hollow profile 13 formed from a metallic material. In particular, the at least one opening 33, 34 in FIG Hollow section 13 may be formed by at least one through hole through the opposite boundary walls 35 of the metallic hollow section 13. This allows two opposing metallic support members 15,16 on the ceramic support body 12 in a simple manner and catfish by means of a mounted in the apertures 33,34 spot weld 36, 37 are rigidly or fixedly connected to the metallic Hohlprofit 13, as shown in Fig. 4th has been illustrated schematically.
    It is advantageous. the tubular support body 12 tubular, in particular hollow cylindrical perform so that it forms an inner air heating channel 38. As best seen in a combination of Figs. 4 and 7 can be given by the specified construction or attachment a free cross-sectional area 39 for air inlet at the inlet side 40 in the ceramic support body 12 at least approximately the same size as a free cross-sectional area 41für the outlet of heated or heated air at the opposite outlet side 42 of the ceramic support body 12 in particular is the free cross-sectional area 39 at the inlet side 40 neglecting the possibly occurring, minimal reduction of the free flow cross section through the supply lines 23,24, identical to the free Cross-sectional area 41 on the outlet side 42 of the ceramic support body 12. As a result, an unobstructed air flow through the ceramic, tubular support member 12 can be ensured. This is achieved primarily by the previously described holder or by the sockeilose attachment of the ceramic Tragköfpers 12 via the lateral surface 14. 27/04/2012 16:54
    No .: R079 P.019 / 033 16 25 16:53:08 27-04-2012 20/33
    According to a first embodiment of the ignition device 2, the ceramic support body 12 of the heating element 10 may be positioned with its two opposite ends within the two longitudinal ends of a one-piece hollow profile 13. After the heating element 10 or its ceramic support body 12 is fastened permanently or non-detachably in the hollow profile 13, direct access to the ceramic support body 12 can be prevented or eliminated. In particular, ee is not necessary to make the fixed in the hollow section 13 integrated heating element 10 accessible or accessible after an exchange of the same is not appropriate or not provided.
    According to one in Flg. 4 dargesteltten optional Ausffhrungsfbrm the Heißiuftendabschnitt 9 of the ignition device 2 may be formed by a tubular attachment 43 on the hollow section 13. This attachment part 43 constitutes an extension for the tubular hollow profile 13 and is preferably plugged onto the end of the hollow profile 13 closest to the heating section 2 or pressed-on detachably. This attachment part 43 may also be designed to be tapered according to a possible development, so that it unfolds a nozzle action and the heat emitted by the heating element 10 or concentrated by the ignition device 2 air flow concentrated particular the attachment 43 can act as a hot air nozzle, which concentrates the exiting hot air and This optional attachment 43 is preferably formed of a material which has an increased heat resistance, in particular a higher heat resistance, than the metallic hollow profile 13. The attachment 43 may be made by a ceramic material or by a high temperature resistant , Metallic material be formed, even when the attachment part 43 projects over a longer period in a Glutansammiung to achieve improved heat resistance and an increased life n. The basic function of this attachment 43 is thus to improve the robustness or heat resistance of the ignition device 2.
    At the end portion of the ignition device 2 opposite the hot air end portion 9 there is provided a fastening device 44, in particular a Hatteplatto N2012 / 01800 17 25 16:53:52 27-04-2012 21/33 45. Thus, the ignition device 2 can be firmly or reliably fixed in the heating device 1 or in a combustion chamber 3. The holding plate 45 can be spaced at a distance 46 of 3 mm to 20 mm, preferably in about 10 mm from the end of the hollow section 13. The ignition device 2 is installed horizontally or approximately horizontally in the heating device 1 in relation to the longitudinal axis of the hollow chip 13.
    According to an advantageous embodiment of the Heißluftendab-section 9 opposite, end-face end of the HohlprafÜs 13 is closed as airtight as possible. In contrast, in a vicinity of the fastening device 44 or holding plate 45, in particular in a section between the fastening device 44 and the hot air end 9, at least one air inlet ·· opening 47,48 formed on soft to be heated supply air or ambient air 49 in the ignition device 2, especially in its hollow section 13 can flow. These air inlet openings 47,48 are preferably formed by a radial through hole through the hollow section 13. The preferably by negative pressure effect in the ignition device 2 and in the interior 32 of the hollow section 13 incoming ambient air 49 is then strongly heated by the supplied with electrical energy heating element 10 and then exits the ignition device 2 as hot air flow 50 at the hot air end section 9.
    The embodiments show possible embodiments of the ignition device 2 and the heater 1, wherein it should be noted at this point that the invention is not limited to the specifically illustrated AusfUhrungsvarianten same, but also various combinations of the individual embodiments are mutually possible and this Variation possible due to Teaching for technical action by representational invention in the skill of those skilled in this technical field is there So there are also all conceivable embodiments, which are possible by combinations of individual details of the illustrated and described embodiments, from the scope covered. 27/04/2012 16:56
    No .: R079 P.021 / 033 18 25 16:54:35 27-04-2012 22/33
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the ignition device 2, these or their components have been shown partly unevenly and / or enlarged and / or reduced in size. All statements on ranges of values in the description of the present invention should be understood to include any and all sub-ranges thereof, e.g. the indication 1 to 10 should be understood to include all sub-ranges, starting from the lower limit 1 and the upper limit 10, i. all subregions begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1 or 5.5 to 10.
    Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.
    The task underlying the independent inventive solutions can be taken from the description.
    Above all, the individual in Figs. 1,2; 3-7 embodiments form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
    N2O12 / 01B0Q 25 16:57:29 27-04-2012 27/33
    Reference numeral 1 heating device 36 spot welding connection 2 ignition device 37 spot welding connection 3 combustion chamber 38 air heating channel 4 combustion chamber bottom plate 39 cross section surface 5 supply air control device 40 inlet side 6 receiving shell 41 cross sectional surface 7 fuel delivery device 42 exit side 8 pellet chute 43 attachment 9 hot air end section 44 attachment device 10 heating element 45 shroud plate 11 walling 46 distance 12 support body 47 air inlet opening 13 hollow profile 48 air inlet opening 14 lateral surface 49 ambient air 15 retaining element 50 hot air flow 16 retaining element 17 inner surface 18 fastening means 18 'surface layer 19 fastening means 19' surface layer 20 longitudinal section 21 longitudinal section 22 heating section 23 supply line 24 supply line 25 connection contact 26 connection contact 27 retaining clip 28 retaining clip 29 leg 30 leg 31 base section 32 I nnenraum 33 breakthrough 34 breakthrough 35 boundary wall N2012 / 01800
    权利要求:
    Claims (14)
    [1]
    1 25 16:55:08 27-04-2012 23/33 Claims 1. An electrical ignition device (2) for fuel in a heating device (1), comprising an electrical heating element (10) with a ceramic support body (12) for electrical resistance lines ( 11), which heating element (10) at least predominantly in a hollow element (13) surrounding the heating element (10) and held in the hollow profile (13), characterized in that on the lateral surface (14) of the ceramic support body (12) at least one metallic holding element (15, 16) is fastened, in particular soldered on or welded, which holding element (15, 16) protrudes from the lateral surface (14) of the ceramic supporting body (12) and in a section facing away from the ceramic supporting body (12) Hohlprofii (13) fixedly connected, in particular soldered or welded, so that a rigid, the lateral surface (14) of the ceramic support body (12) relative to the inner surface (17) of the Hohlp Rofils (13) distanzierende connection between the ceramic support body (12) and the Hohlprofii (13) is formed.
    [2]
    2. Ignition device according to claim 1, characterized in that on the ceramic supporting body (12) at least one metallic fastening means (18, 1Θ) for connecting, in particular for welding or soldering to the metallic holding element (15,16) is formed.
    [3]
    3. Ignition device according to claim 2, characterized in that the metallic fastening means (18,19) by at least one metallic surface layer (18 ', 19') on the ceramic support body (12) is formed, wherein the metallic surface layer (18 ', 19' ) Is applied to the ceramic of the supporting body (12) Ist.
    [4]
    4. Ignition device according to claim 2, characterized in that the metallic fastening means (18,19) in the ceramic substrate of the Tragköpers part2012Λ1800 2 25 16: 55.46 27-04-2012 24/33 (12) is partially integrated or partially encapsulated, so a partial section of the surface of the metallic fastening means (18, 19) terminates approximately flush with the lateral surface (14) of the ceramic supporting body (12).
    [5]
    5. Ignition device according to claim 2, characterized in that the ceramic support body (12) is rod-shaped, in particular tubular, wherein within a first longitudinal section (20) at least one metallic fastening means (18, 19) for the at least one retaining element (15, 16) and within its second longitudinal section (21) has a heating section (22) in which meander-shaped extending, electrical resistance lines (11) are formed.
    [6]
    6. Ignition device according to claim 5, characterized in that electrical supply lines (23,24) for the heating element (10) facing away from the heating section (22) end portion of the ceramic support body (12) with the electrical resistance lines (11) or with low-impedance leads are welded or soldered to the electrical resistance lines (11).
    [7]
    7. Ignition device according to one of the preceding claims, characterized in that two in relation to the lateral surface (14) of the ceramic support body (12) opposing holding elements (15,16) are staggered, each by longitudinally section C or U-shaped Haitebügel (27, 28) are formed.
    [8]
    8. Ignition device according to claim 7, characterized in that the longitudinal section C- or U-shaped retaining bracket (27,28) are aligned parallel to the longitudinal extent of the ceramic support body (12) and with their legs (29,30) on the lateral surface (14 ) of the tag body (12), in particular on metallic fastening means (18, 19) of the ceramic supporting body (12), are supported at points. N2012 / 01800 3 25 16:56:25 27-04-2012 25/33
    [9]
    9. Ignition device according to claim 8, characterized in that the Schenket (29, 30) connecting base portion (31) of the Haitebügei (27,28) to the lateral surface (14) of the ceramic support body (12) is arranged at a distance and the inner surface (17 ) of Hohlprofiis (13) contacted.
    [10]
    10. Ignition device according to claim 7, characterized in that in the longitudinal section C- or U-shaped retaining bracket (27,28) center the ceramic support body (12) in the interior (32) of the outer hollow profile (13) and in the radial direction relative to the Support inner surface (17) of the hollow profile (13).
    [11]
    11. Ignition device according to one of the preceding claims, characterized in that the Hohiprofil (13) is formed of a metallic material and the at least one metallic holding element (15,16) via at least one opening (33,34) in the outer boundary wall (35 ) of the hollow profile (13) with the Hohiprofil (13) is welded.
    [12]
    12. Ignition device according to claim 11, characterized in that the at least one opening (33, 34) is formed by at least one through-hole in the mutually opposite boundary walls (35) of the metallic hollow profile (13) and that the at least one metallic holding element ( 15,16) of the ceramic support body (12) by means of a »* in at least one breakthrough (33,34) formed spot welding connection (36,37) with the metallic Hohiprofil (13) is rigidly and fixedly connected.
    [13]
    13. Ignition device according to one of the preceding claims, characterized in that the ceramic support body (12) is tubular and thus forms an inner air heating channel (36), wherein a free cross-sectional area (39) for an air inlet at the inlet side (40) in the ceramic support body (12) at least approximately corresponds to the free cross-sectional area (41) for a discharge of heated air at the opposite outlet side (42) of the ceramic support body (12) N2012 / 01800 4 25 4 25 26/33 16:57:05 27- 04-2012
    [14]
    14. A heating device (1) with an electric ignition device (2) for fuel, comprising a combustion chamber (3), a Brennmaterialförder- device (7) and a Aufnahmervieliel or receiving tray (6) for stu chch fuel, in particular for wood pellets, characterized in that it comprises an ignition device (2) according to one or more of the preceding claims Riener Karl Stefan

    Lawyer GmbH N2012 / 01800
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2657604B1|2018-12-05|Electric ignition device for combustible material in a heating device and heating device with same
    DE102004005267A1|2005-08-25|Vaporising burner for vehicle heater, has combustion chamber casing with double wall structure
    DE102013220654A1|2015-04-30|Floor assembly for a combustion chamber assembly of an evaporator burner
    DE3233321A1|1984-03-08|EVAPORATION BURNER
    EP1972853A1|2008-09-24|Ignition devices and their application and method for igniting a solid fuel
    DE202010004133U1|2010-06-24|Electric heating element
    EP3794279A1|2021-03-24|Evaporator assembly for mobile heating devices
    DE10160655A1|2003-06-26|Combustion chamber assembly for heater unit distributes fuel through combustion chamber vaporizing lining
    DE3716411C2|1989-11-23|
    EP2250439A2|2010-11-17|Gas burner module for a gas cooktop, and gas cooktop
    DE102005056629B4|2007-08-02|burner arrangement
    DE4401800C1|1995-03-02|Vaporising burner for a vehicle heating device which can be operated independently of the engine
    DE10041472C1|2002-04-18|Gas radiant burner
    DE19546130A1|1997-06-12|Evaporation burner for engine-independent motor vehicle heater
    DE102011084868B4|2013-05-08|Evaporator burner, in particular for a vehicle heater
    DE102020000731A1|2020-10-29|Ignition device for igniting and glowing through at least one shisha charcoal briquette
    DE10221495B4|2004-03-11|Burner for a heater
    DE19752099C1|1998-10-22|Glow plug for diesel engine ignition, facilitation
    DE10009820A1|2001-09-20|Heating apparatus, particularly for stand heating of road vehicle independent of vehicle engine, has heat exchanger encased by boiler chamber into which flame tube extends
    DE102011005103B4|2015-04-02|Combustion chamber assembly for an evaporator burner
    DE10249872B4|2017-03-02|Mobile fuel heater with a glow plug / flame guard
    DE102005024240B4|2010-06-10|radiant burner
    DE202021102620U1|2021-07-23|Heating device for an exhaust system and an exhaust system
    EP2101542B1|2013-01-02|Attachment assembly for a tubular electric heating element
    DE3419210C2|1986-08-07|Evaporation burners for liquid fuel
    同族专利:
    公开号 | 公开日
    EP2657604A3|2017-11-01|
    AT511814B1|2013-03-15|
    EP2657604B1|2018-12-05|
    EP2657604A2|2013-10-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1972853A1|2007-03-23|2008-09-24|Rauschert Steinbach GmbH|Ignition devices and their application and method for igniting a solid fuel|
    GB2526600A|2014-05-29|2015-12-02|Matthew Statham|Fuel burner ignition system|
    AT515792B1|2014-07-28|2015-12-15|Marco Gehrer|Wood stove|
    DE102015111585A1|2015-07-16|2017-01-19|Mitsubishi Hitachi Power Systems Europe Gmbh|Coal dust burner with one-piece, electrically heated fuel nozzle|
    CN106642197A|2016-12-28|2017-05-10|水振鸿|Alternating-current electronic cigar lighter|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA513/2012A|AT511814B1|2012-04-27|2012-04-27|Electric ignition device for fuel in a heating device and heating device equipped therewith|ATA513/2012A| AT511814B1|2012-04-27|2012-04-27|Electric ignition device for fuel in a heating device and heating device equipped therewith|
    EP13165125.9A| EP2657604B1|2012-04-27|2013-04-24|Electric ignition device for combustible material in a heating device and heating device with same|
    [返回顶部]