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EP1844630B1 - Dispositif de chauffage par induction et plaque de cuisson dotee d'un dispositif de chauffage par induction de ce type - Google Patents

Dispositif de chauffage par induction et plaque de cuisson dotee d'un dispositif de chauffage par induction de ce type Download PDF

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Publication number
EP1844630B1
EP1844630B1 EP06706390A EP06706390A EP1844630B1 EP 1844630 B1 EP1844630 B1 EP 1844630B1 EP 06706390 A EP06706390 A EP 06706390A EP 06706390 A EP06706390 A EP 06706390A EP 1844630 B1 EP1844630 B1 EP 1844630B1
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EP
European Patent Office
Prior art keywords
support
induction heating
heating device
induction
supply part
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.)
Active
Application number
EP06706390A
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German (de)
English (en)
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EP1844630A1 (fr
Inventor
Wilfried Schilling
Ralf Dorwarth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to SI200630537T priority Critical patent/SI1844630T1/sl
Priority to PL06706390T priority patent/PL1844630T3/pl
Publication of EP1844630A1 publication Critical patent/EP1844630A1/fr
Application granted granted Critical
Publication of EP1844630B1 publication Critical patent/EP1844630B1/fr
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
    • H05B6/1263—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements using coil cooling arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/06—Control, e.g. of temperature, of power
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/02—Induction heating
    • H05B2206/022—Special supports for the induction coils

Definitions

  • the invention relates to an induction heater for a cooking area and a hob with such an induction heater.
  • a hob with induction heaters is for example from the DE19817197 A1 known.
  • individual induction coils possibly wound on their own carrier, arranged in a receptacle of an induction cooktop. They are connected to a central power supply which is provided either for all induction heaters or for at least two induction heaters.
  • a hob control is according to the predetermined power level signals to the power supply for a corresponding power application of the respective induction heater.
  • the DE 199 35 835 A1 known to heat two hobs inductively with induction heating on a hob cavity and the other hobs with radiant heaters.
  • a common power supply is provided, which applies control commands according to one or both induction heaters with power.
  • the two induction heating devices can be designed as a so-called two-module belonging together.
  • the DE 202 04 249 U1 describes an induction heater for a hotplate.
  • This induction heater has an induction coil in the form of a flat spiral, one mounted on one side Heatsink and a cover plate to cover power elements of an induction generator of the induction heater.
  • this induction heater is constructed relatively open. Furthermore, cooling of a power electronics can only be done via the heat sink and the cover plate.
  • the DE 101 63 839 A1 describes a further induction heating device in the form of an aforementioned two-module. Induction coils are provided on a frame, while common cooling bodies, a single common cooling fan and the electronics for all four induction coils are provided underneath. These individual functional parts form assemblies.
  • the invention has for its object to provide an induction heater mentioned above and provided therewith hob hob with which problems of the prior art can be eliminated and above all, a desired structure of a hob cavity in various ways is possible.
  • the induction coil is arranged or fastened to a carrier device, which can also be done by winding a coil wire onto the carrier device.
  • a supply part arranged, which converts supplied voltage, in particular single-phase mains voltage, into a power drive for the induction coil.
  • the supply part has power electronics and control electronics, for which purpose the induction heating device has electrical power connections and electrical control connections.
  • a fan device is provided which at least cools the power unit or supplies cooling air.
  • the induction heater is designed as a ready to install or ready to connect unit. This means that it is prefabricated so far that it only needs to be used in a hob cavity during assembly and electrically connected. Further steps are advantageously not required.
  • the assembly of a hob with at least one such induction heating fast and easy to do.
  • the induction heater is a self-sufficient functional unit that can be very easily connected as well as otherwise, for example radiant heater and no additional power electronics needed.
  • the induction heater is a self-sufficient functional unit that can be very easily connected as well as otherwise, for example radiant heater and no additional power electronics needed.
  • the induction heater is a self-sufficient functional unit that can be very easily connected as well as otherwise, for example radiant heater and no additional power electronics needed.
  • the induction heater is a self-sufficient functional unit that can be very easily connected as well as otherwise, for example radiant heater and no additional power electronics needed.
  • four-hob hob four heaters to use of which any number may be formed by induction heating according to the invention.
  • the separate power supply or power electronics is eliminated.
  • This also has the advantage, for example, that the space otherwise required for the central or common power supply becomes available. This in turn increases the scope for the arrangement of the heaters on the hob.
  • the induction coil is flat and consists of a layer of coiled conductors, so it is single-layered.
  • the support means is substantially flat, such as a disk-like. It supports the induction coil over the entire surface or on its entire surface, although it may have individual openings or openings.
  • the supply part which can have a number of components, this advantageously carries on a printed circuit board or generally on a component carrier. This advantageously extends substantially parallel to the induction coil. All electrical components of the control electronics and / or power electronics are particularly advantageously mounted on a single component carrier, in particular on both sides.
  • the fan device may advantageously be a conventional integrated and relatively small fan, which only has to be electrically connected.
  • This fan can be attached on the one hand to the support means, wherein it is advantageously attached directly thereto by screws or locking connections or the like. But it can also be attached directly to the component carrier or connected to it. About spacers or the like. it can also rest against the carrier device.
  • spacers are provided between the component carrier and the carrier device, which provide for the exact positioning of the component carrier relative to the carrier device and thus within the induction device.
  • the component carrier may be mechanically fixedly connected to the carrier device, for example via the aforementioned spacers. Such a connection should be solvable, especially in the event of repair or replacement.
  • a cover may be provided which covers or surrounds various components of the induction heating device, in particular the component carrier.
  • the cover is advantageously substantially closed or surrounding, so that an overall largely closed unit is formed. Openings can of course be provided for bushings of electrical lines and as ventilation openings.
  • the cover may be shell-shaped, that is to say with a surface from which a side edge projects in essential areas. It can cover both the surface of the component carrier as well as on the side to reach the carrier device. It is possible, the cover only on the support device to hold or attach fasteners such as pins or screws in the carrier device.
  • the cover may be applied to the component carrier or spacer to the component carrier. It is thus possible, for example, to fix the component carrier to the cover in such a way that it is pressed by the latter against the carrier device and advantageously bears against it via spacers.
  • the support means at least in its outer region on a protruding side edge, which may be wholly or largely encircling.
  • the support device itself form a shell-like receiving space for receiving especially the supply part and the fan device.
  • These parts can be secured in this receiving space, advantageously they are attached directly to the support means.
  • the receiving space can be closed by a cover.
  • this rests substantially on the protruding side edges of the support means. It can be a kind of flat lid.
  • it can be provided, in particular in the case of a component carrier engaging the essential surface of the induction heater, that the cover rests against it as little as possible in order not to bend it.
  • a spacer may be provided in the middle region of the carrier device and, in addition to a laterally outer attachment, bring about a central fastening or fixing of the supply part or of the component carrier. In this area can also attack covers, since their power is then passed through the connection via the spacer directly to the support means.
  • Such spacers may be integrally connected to the carrier device or be an integral part. Especially when trained as plastic parts, the spacers can stand out.
  • a support member may be a planar support of the induction coil or carry the induction coil.
  • Another carrier part can carry or be connected to the supply part or its component carrier.
  • the support members may be interconnected, with a fixed and simultaneously releasable mechanical connection provides an advantageous installation and repair options.
  • a first carrier part may be substantially disc-like and flat.
  • a second carrier part may also have a kind of disc, wherein in particular a side edge protrudes to form a shell-like receiving space for the supply part.
  • the side edge may be substantially circumferential with the same height.
  • the component carrier can be fastened, for example via spacers, to the second carrier part.
  • the spacers can thereby project integrally from the second carrier part.
  • For closing the assembly or the receiving space can then be provided a substantially disc-like cover, as has already been described above.
  • a peripheral side edge of the assembly or a cover in certain areas forms the entire side edge, wherein small sections with openings or recesses may be present.
  • the cutout can be used primarily for easier insertion of the supply part with the protruding connections. This interruption can be locked or covered in the side edge by a corresponding protruding section on the other part.
  • Such a cutout is particularly advantageously provided on the part of the induction heating device to which the component carrier is fastened, in particular if the Component carrier is prefixed to a shell-like cover before attaching to the carrier device.
  • a single component carrier for the supply part is provided for a simpler construction of the heater.
  • both power electronics and control electronics are arranged.
  • the components of the power electronics in particular those which are less prone to interference, lie on the side facing the induction coil side. This is especially advantageous if the component carrier is located as far away from the induction coil on the unit.
  • the parts of the control electronics in particular sensitive components, arranged on the opposite side of the component carrier.
  • the supply part or the power electronics for the induction heater is advantageously constructed with a single transistor inverter. This can form a parallel resonant circuit with the induction coil to limit the complexity of the component. Furthermore, an optimal adaptation to the induction coil can take place, in particular with regard to the electrical parameters.
  • the power electronics advantageously has a heat sink on which, in particular, an aforementioned transistor converter or other power components are arranged.
  • This heat sink can also serve as one of the abovementioned spacers, for example.
  • it because of its stable construction made of aluminum, it can be installed mechanically firmly connecting or force-transmitting.
  • the fan device which mainly cools the supply part or a power electronics, can be arranged between the induction coil and the component carrier or the supply part, that is, completely integrated into the structural unit of the induction device. She is for control and power supply advantageously connected to the supply part or the component carrier.
  • a cooling air guide can be designed so that cooling air is introduced or sucked in at one side remote from the induction coil, which is usually the underside in use, by means of one or more defined predefined suction openings. These suction openings are arranged close to the fan device, in particular directly below.
  • the fan device blows the cooling air first against the supply part or the power electronics or a heat sink provided for this purpose. Subsequently, the cooling air flow is passed past the other power electronics and the other control electronics. Thereafter, it can flow out of the heater.
  • a certain air gap of a few millimeters is provided between the induction coil and the underside of the cooktop panel.
  • the cooling air can escape to the outside, wherein preferably a substantially radially outwardly propagating and the entire induction coil sweeping cooling air flow is generated.
  • air guide elements can be provided. So even a cooling of the induction coil is possible.
  • the temperature compatibility of conventional induction coils is far above that of electrical components, usually at over 200 ° C.
  • the heating device may have a temperature sensor.
  • the temperature sensor is advantageously designed so that it rests on the underside with heat-transmitting contact both for defined positioning and for temperature measurement. In the case of a cooling air duct extending through the middle, this is led past the temperature sensor.
  • the finished structural unit of the induction heating device projects laterally only slightly beyond the induction coil.
  • a relatively compact construction of the entire unit is achieved.
  • this makes it very well possible to arrange such an induction heating device in a cooktop trough, in addition to other heating devices, such as radiant heaters, in a relatively narrow and space-saving manner.
  • spacer elements can be provided or formed, in particular in the outer region and / or a central central region. They protrude above the induction coil and serve to be applied to a cooktop plate running above it for a defined distance.
  • a hob according to the invention has a plurality of heating devices, of which at least one is an aforementioned induction heater.
  • the heaters are attached to the cooking hob, in particular either on a bottom side of the carrier tray or on a top surface of the cooktop plate.
  • Induction heaters and conventional radiant heaters combined.
  • the cooktop cavity has an operating device which has operating elements and a controller.
  • operation-dependent control signals can be generated, which are guided at least directly to an induction heater or its control electronics.
  • a power supply of the hob is provided and electrical leads directly from the power supply to the power electronics of the supply part of the induction heater.
  • the supply part undertakes the application of power to the induction coil.
  • any other power electronics which is usually provided centrally for the supply of multiple induction coils omitted.
  • a hob with controls such as touch switches and electromechanical energy regulator can be provided, as it is known from DE 198 33 983 A1 are known. They contain a clocking mechanical switch that generates switching signals or, when the radiant heaters are connected, directly applies power to them. With appropriate coordination, these electrical switching signals can also be given to the control electronics of an induction heater. On the one hand, this can detect the set power level in continuous operation and then adjust to the induction coil for a continuous power supply with the appropriate power level. On the other hand, it can operate the induction coil clocking similar to a radiant heater, so only for certain times, but then with full power.
  • an induction heater 11 is shown disassembled in the upper part into its essential parts.
  • An induction coil 13 consists of several turns 14 of a coil wire 15 with an inner terminal 16a and an outer terminal 16b.
  • a temperature sensor 18 In the central area is a temperature sensor 18 with lead 19.
  • the induction coil 13 is supported by a carrier device 20 and is arranged thereon.
  • the support means 20 is advantageously made of plastic and is substantially flat and plate-like. They have molded spacers 22, whose function will be discussed in more detail. Furthermore, what can Fig. 4 it can be seen better, elongated and flat ferrite cores 25 are introduced into corresponding receptacles 24 on the underside and secured thereto.
  • the carrier device 20 on openings 27, through which the terminals 16 of the induction coil 13 and the terminals 19 of the temperature sensor 18 can be guided downwards.
  • the electrical system 30 or a component carrier 31, in particular a printed circuit board It carries on its upper side mainly the power electronics 33 and on its underside mainly the control electronics 35.
  • the power electronics 33 includes, for example, a transistor 34 together with heat sink 35.
  • Other components of the power electronics 33 are those that are usually present in the power electronics of an induction heating.
  • the components of the control electronics 37 are also typical components, in particular ICs or smaller components.
  • a ventilation device 39 advantageously an integrated fan such as a radial fan is mounted or attached to the supply part 30, in particular with direct cooling effect for the heat sink 35 and thus the transistor 34th
  • a cover 40 is mounted on the induction device 11. It consists of a substantially flat cover plate 41, from which a substantially peripheral side edge 42 protrudes.
  • the cover 40 is advantageously made of plastic.
  • an aluminum plate 26 can be arranged in the assembled state for shielding the supply part 30 lying thereunder.
  • the composite induction heater 11 is shown.
  • the cover 40 and / or its side edge 42 extend substantially all the way round to the carrier device 20 or its outer edge, so as to form a closed structural unit.
  • the induction coil 13 rests directly on the carrier device 20.
  • the supply part 30 and the component carrier 31 is applied and in particular also screwed or fastened.
  • the terminals 16 of the induction coil 13 are attached to corresponding terminals of the supply part 30, for example, the coil wire 15 soldered directly to contact fields.
  • a cooling air intake takes place by indicated cooling air openings 44 in the lower part of the cover 40 and in the cover 41.
  • Cooling air flow passes through the cooling air openings 44 and to the cooling body 35. From there, the cooling air flows over the other surface of the component carrier 31 or the power electronics 33. Thereafter it passes through the central opening 27 past the temperature sensor 18 and spreads between the underside of an overlying hob plate and the top of the induction coil 13 radially outward. This allows all swept parts to be cooled.
  • Fig. 2 is a modification of the same induction coil 113 as in Fig. 1 shown. This is applied to a first support means 120a, which is only a flat plate with corresponding receptacles 124a for ferrite cores 125.
  • the second part of the support means is the lower part 120b.
  • both spacers 122 and side edges 121 are formed, which are advantageously formed substantially circumferentially and the induction heater 111 final.
  • the supply part 130 as well as the fan device 139 corresponds to those Fig. 1 , Completed the assembly is down through a cover 140, which consists only of a flat cover plate 141, so no side edges or the like. having.
  • the induction coil 113 As well as the supply part 130 abut on a two-piece support means with the upper support 120a and the lower support 120b.
  • the supply part 130 and the component carrier 131 abut against the spacers 122 and are fastened.
  • the carrier device is formed in two parts and has itself the side edge 121.
  • the cover thus has no margin.
  • Fig. 3 is again, similar to the Fig. 1 and 2 , the same induction coil 213 is provided together with the upper part of a carrier 220a. Also supply part 230 and fan device 239 corresponding to those of the previous figures.
  • the carrier device is here also provided with a lower carrier 220b, that is to say with a two-part carrier device. However, the spacers 222 are formed as separate components and are just introduced separately.
  • the lower carrier 220b in turn has the protruding side edge 221.
  • the cover 240 down corresponds to the one out Fig. 2 , So is only a flat cover plate 241.
  • Fig. 4 the structure of the induction heater 11 is off Fig. 1 shown in more detail.
  • the round induction coil 13 is placed on the carrier device 20 or is placed.
  • spoke-like receptacles 24 are formed, in which the flat ferrite cores 25 can be inserted and fixed.
  • the correspondingly shaped aluminum plate 26 is placed, which has at the same points openings 27 as well as the support means 20, in particular for the passage of terminals.
  • the spacers 22 also project through the aluminum plate 26. It can be seen how a short side edge piece 21 protrudes from the carrier device 20 at one point. This will be discussed in more detail below.
  • Fig. 5 is shown from a slightly different perspective, the entire assembly of the induction heater 11.
  • the supply part 30 has a component carrier 31, on which the power electronics 33 is seated, as well as the transistor 34 together with the heat sink 35.
  • the fan 39 directly adjoins the heat sink 35 and blows the cooling air directly onto it. It should be noted that the component carrier 31 stops short of the transistor 34 and thus the heat sink 35 projects beyond it.
  • connection section 32 has at least two plug-in lugs, which are provided in particular for a mains connection, ie form the power connection or the connection from the outside to the power electronics 33.
  • a control connection to the control electronics 37 is not shown, but can easily be done via corresponding plug-in lugs or a tab connection.
  • the cover 40 Under the component carrier 31 is the cover 40, which is formed substantially cup-like. In this case, however, a recess in the side edge 42 is provided in the region of the connection section 32. Furthermore, here extends their lower cover plate 41 accordingly so far that it also supports the connection portion 32 and covers down.
  • the recess 43 in the side edge 42 thus serves to allow the connection section 32 to protrude from the otherwise closed induction heating device 11.
  • the small piece of side edge 21 is provided on the carrier device 20.
  • Fig. 6 is shown in an oblique top view, as the supply part 30 is inserted into the cover 40. It will be appreciated that the fan 39 is close to the heat sink 35. Furthermore, it can be seen how the connecting portion 32 protrudes through the recess 43 to the outside and thus is easily accessible. Furthermore, it can be seen that the component carrier 31 is covered in approximately two-thirds of the surface of the cover plate 41, wherein it is substantially triangular in shape and does not quite follow the round shape of the cover plate 41. At the bottom of the component carrier 31, the control electronics 37 is still arranged, which, however, is not visible here.
  • Fig. 7 an entire hob cavity 50 is shown. It consists of a hob plate 51, for example made of glass ceramic, which with a circumferential frame 52 is provided, for example made of metal.
  • a circumferential frame 52 is provided, for example made of metal.
  • different heaters are arranged, in this embodiment, the two left heaters radiant heaters 55 and the two right different sized induction heaters 11 according to the invention.
  • a mains connection 57 is provided in the rear central region, with which the hob cavity 50 can be connected, for example, as usual to a three-phase connection in a household.
  • connecting cables 58a go directly to the two induction heating devices 11 or their connection sections 32.
  • connection cables 58b go to a control device 60, which undertakes a direct power supply to the radiant heaters 55.
  • the controller 60 for example, have touch switches for an operator, which are marked on the top of the hob plate 51 by corresponding markings 61.
  • control signals or operating commands can be entered, in particular for selecting a hotplate or a heater and for setting a power level.
  • the control 60 does this internally, for example via power relays, which connect the respectively selected radiant heaters 55 to the mains connection 57 by means of the connection cables 58b and thus apply full power, in particular in cyclic operation.
  • control lines 59 are provided by the controller 60, which supplies the corresponding commands to the respective control electronics 37 of the induction heating devices 11. Since the power electronics 33 is connected via the connection cable 58 a directly to the power supply terminal 57, so the control electronics 37 at the induction heater 11 directly make the power or control.
  • the induction heating 11 according to the invention in the hob according to the invention 50 are formed by the outer dimensions corresponding to conventional heaters such as radiant heaters 55.
  • conventional heaters such as radiant heaters 55.
  • the hob requires 50 no central line electronics or power supply.
  • a mains connection 57 is inevitably provided in each hob cavity anyway.
  • the induction heating devices 11 according to the invention can also be varied freely with regard to their arrangement. In the hob 50 only connection cable 58 and control lines 59 are to be laid, but this is not a major problem.
  • the induction heaters 11 are advantageously provided with similar dimensions as the radiant heaters 55, in particular also with respect to their height. Thus, under certain circumstances even the same fasteners with spring clips or the like. be used, which allows a freer arrangement of induction heaters in a so-called mixed hob.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Baking, Grill, Roasting (AREA)
  • Cookers (AREA)

Claims (23)

  1. Dispositif de chauffage à induction (11, 111, 211) pour une plaque de cuisson, avec une bobine d'inductance (13, 113, 213) disposée ou fixée sur un élément porteur (20, 120, 220), sachant que :
    - sur l'élément porteur (20, 120, 220) est placée une unité d'alimentation (30, 130, 230) destinée à transformer la tension amenée à une commande de puissance pour la bobine d'inductance (13, 113, 213),
    - l'unité d'alimentation présente un organe électronique de puissance (33, 133, 233) et un organe électronique de commande (37, 137, 237),
    - un dispositif de ventilation (39, 139, 239) est prévu pour au moins l'organe électronique de puissance,
    - le dispositif de chauffage à induction (11, 111, 211) présente des contacts de puissance électriques et des contacts de commande électriques et que
    - le dispositif de chauffage à induction est conçu comme unité modulaire prête pour montage et/ou prête pour raccordement,
    caractérisé en ce que le dispositif de chauffage à induction (11, 111, 211) est une unité modulaire, sachant qu'elle est pour l'essentiel fermée vers l'extérieur et en tant qu'unité modulaire finie, son extension latérale ne dépasse que légèrement sur celle de la bobine d'inductance (13, 113, 213).
  2. Dispositif de chauffage à induction selon la revendication 1, caractérisé en ce que l'élément porteur (20, 120, 220) est plat, en particulier discoïde, sachant que l'élément porteur occupe la même surface que la bobine d'inductance (13, 113, 213) ou porte celle-ci sur toute sa surface.
  3. Dispositif de chauffage à induction selon la revendication 1 ou 2, caractérisé en ce que l'unité d'alimentation (30, 130, 230) présente une carte de circuits imprimés ou un support de composants (31, 131, 231), qui s'étend de préférence et pour l'essentiel parallèlement à la bobine d'inductance (13, 113, 213) et porte l'organe électronique de puissance (33, 133, 233) et/ou l'organe électronique de commande (37, 137, 237).
  4. Dispositif de chauffage à induction selon l'une des revendications précédentes, caractérisé en ce que le dispositif de ventilation (39, 139, 239) est fixé sur l'élément porteur (20, 120, 220), en particulier directement fixé à celui-ci, ou est relié à celui-ci.
  5. Dispositif de chauffage à induction selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif de ventilation (39, 139, 239) est directement fixé sur le support de composants (31, 131, 231) ou relié à celui-ci et s'appuie également sur l'élément porteur (20, 120, 220) par l'intermédiaire d'entretoises (22, 122, 222).
  6. Dispositif de chauffage à induction selon l'une des revendications précédentes, caractérisé en ce que le support de composants (31, 131, 231) s'appuie contre l'élément porteur (20, 120, 220) par l'intermédiaire d'entretoises (22, 122, 222), sachant qu'il est en particulier relié fermement mécaniquement à l'élément porteur par l'intermédiaire des entretoises, sachant que de préférence un élément de recouvrement (40, 41, 42) recouvre ou entoure le support de composants (31), sachant qu'en particulier l'élément de recouvrement a pour l'essentiel une forme de cuvette et constitue un réceptacle et recouvre la surface du support de composants, et s'étend sur les côtés (42) jusqu'à l'élément porteur (20) de sorte que le dispositif de chauffage à induction fini (11) en tant qu'unité modulaire est fermé pour l'essentiel.
  7. Dispositif de chauffage à induction selon la revendication 6, caractérisé en ce que l'élément de recouvrement (40) est exclusivement fixé à l'élément porteur (20) et/ou aux entretoises (22) vers un support de composants (31), de préférence dans la zone du bord extérieur (42).
  8. Dispositif de chauffage à induction selon l'une des revendications 1 à 6, caractérisé en ce que l'élément porteur (120, 220) présente, au moins dans la zone extérieure, un bord latéral (121, 221) relevé, pour l'essentiel sur tout le pourtour, pour constituer un réceptacle en forme de cuvette.
  9. Dispositif de chauffage à induction selon les revendications 3 et 8, caractérisé en ce qu'un support de composants (131, 231) ou une carte de circuits imprimés avec l'organe électronique de puissance (133, 233), l'organe électronique de commande (137, 237) et/ou le dispositif de ventilation (139, 239), qui forment en particulier l'unité d'alimentation, sont fixés dans le réceptacle de l'élément porteur (120, 220), de préférence à l'élément porteur.
  10. Dispositif de chauffage à induction selon la revendication 8 ou 9, caractérisé en ce que le réceptacle en forme de cuvette est fermé par un élément de recouvrement (140, 240), sachant que l'élément de recouvrement repose pour l'essentiel sur les bords latéraux relevés (121, 221) de l'élément porteur (120, 220), et est de préférence une sorte de couvercle plat, sachant qu'il repose en particulier et pour l'essentiel dans la zone du bord latéral.
  11. Dispositif de chauffage à induction selon l'une des revendications 8 à 10, caractérisé en ce que dans la zone médiane de l'élément porteur (120, 220) est prévue au moins une entretoise (122, 222) pour assurer le positionnement correct dans celui-ci de l'unité d'alimentation (130, 230) ou d'un support de composants (131, 231), sachant qu'en particulier l'entretoise est reliée à l'élément porteur en faisant une seule pièce avec celui-ci ou est partie intégrante de celui-ci.
  12. Dispositif de chauffage à induction selon l'une des revendications 8 à 11, caractérisé en ce que l'élément porteur (120, 220) est constitué d'au moins deux parties portantes (120a, b ; 220a, b), sachant qu'une partie portante (120a, 220a) est le soutien surfacique de la bobine d'inductance (113, 213) et que l'autre partie portante (120b, 220b) porte l'unité d'alimentation (130, 230) ou un support de composants (131, 231) ou est reliée avec elle/lui, sachant que de préférence les deux parties de l'élément porteur sont reliées entre elles fermement et de manière détachable, et qu'en particulier la première partie portante (120a, 220a) est pour l'essentiel discoïde, de préférence sans bords latéraux relevés.
  13. Dispositif de chauffage à induction selon la revendication 12, caractérisé en ce que la deuxième partie portante (120b, 220b) présente sur son pourtour un bord latéral (121, 221) afin de constituer un réceptacle en forme de cuvette pour l'unité d'alimentation (130, 230) ou le support de composants (131, 231), sachant que de préférence le bord latéral est relevé à partir d'une partie médiane discoïde.
  14. Dispositif de chauffage à induction selon l'une des revendications 12 ou 13, caractérisé en ce que l'unité d'alimentation (130, 230) ou le support de composants (131, 231) est fixé(e) sur la deuxième partie portante (120b, 220b), sachant que de préférence cette deuxième partie portante présente des entretoises (122, 222) pour appui sur le support de composants, sachant qu'elles forment en particulier intégralement une unité avec la deuxième partie portante (120b, 220b).
  15. Dispositif de chauffage à induction selon l'une des revendications précédentes, caractérisé en ce que l'unité d'alimentation (30, 130, 230) présente un unique support de composants (31, 131, 231) pour l'organe électronique de puissance (33, 133, 233) et l'organe électronique de commande (37, 137, 237), sachant que de préférence les composants de l'organe électronique de puissance sont disposés sur le côté du support de composants orienté vers la bobine d'inductance (13, 113, 213), et que le support de composants est placé à l'extrémité de l'unité modulaire éloignée de la bobine d'inductance.
  16. Dispositif de chauffage à induction selon l'une des revendications précédentes, caractérisé en ce que l'unité d'alimentation (30, 130, 230) ou un organe électronique de puissance (33, 133, 233) contenu dans elle présente un unique convertisseur à transistor (34, 134, 234) et forme un circuit oscillant parallèle avec la bobine d'inductance (13, 113, 213).
  17. Dispositif de chauffage à induction selon l'une des revendications précédentes, caractérisé en ce que le dispositif de ventilation (39, 139, 239) est placé entre la bobine d'inductance (13, 113, 213) et l'unité d'alimentation (30, 130, 230) ou le support de composants (31, 131, 231), sachant qu'il est de préférence muni de contacts électriques et connecté à l'unité d'alimentation ou au support de composants.
  18. Dispositif de chauffage à induction selon l'une des revendications précédentes, caractérisé en ce que d'un côté opposé à la bobine d'inductance (13, 113, 213), en particulier le côté inférieur, est prévu dans la zone du dispositif de ventilation (39, 139, 239) un orifice d'aspiration (44, 144, 244) pour l'air de refroidissement qui aspire l'air de refroidissement et le dirige contre l'unité d'alimentation (30, 130, 230) ou l'organe électronique de puissance (33, 133, 233) ou un dissipateur de chaleur (34, 134, 234), sachant qu'est de préférence prévu un guide d'air de refroidissement qui, en aval de l'organe électronique de puissance, fait passer le flux d'air de refroidissement le long d'un organe électronique de commande (37, 137, 237) et, par un orifice central (27, 127, 227) dans élément porteur (20, 120, 220), le fait traverser une zone libre médiane de la bobine d'inductance pour le faire sortir de l'unité modulaire.
  19. Dispositif de chauffage à induction selon l'une des revendications précédentes, caractérisé en ce qu'il est conçu comme unité modulaire autonome pour connexion à une tension d'alimentation (57) non régulée en ce qui concerne la génération de puissance, telle que la tension du secteur, et pour connexion à des signaux de commande destinés à ajuster la régulation de puissance ou la valeur de la puissance débitée.
  20. Table de cuisson avec plusieurs plaques de cuisson et dispositifs de chauffage respectivement associés, sachant que la table de cuisson (50) présente un bac (54) dans lequel sont disposés et fixés les dispositifs de chauffage (11, 55), caractérisée en ce qu'au moins un dispositif de chauffage est un dispositif de chauffage à induction (11) selon l'une des revendications précédentes.
  21. Table de cuisson selon la revendication 20, caractérisée en ce qu'elle présente un équipement de commande (60, 61) avec une commande pour générer des signaux de commande dépendants de l'opérateur, sachant que les signaux de commande sont directement acheminés sur un dispositif de chauffage à induction (11).
  22. Table de cuisson selon la revendication 20 ou 21, caractérisée en ce qu'elle présente régulateurs d'énergie électromagnétiques qui comprennent un commutateur mécanique cadencé dont les signaux de commutation électriques sont directement acheminés sur un dispositif de chauffage à induction (11).
  23. Table de cuisson selon l'une des revendications 20 à 22, caractérisée en ce qu'elle présente un bloc d'alimentation (57), avec un filtre de préférence, sachant qu'un dispositif de chauffage à induction (11) de la table de cuisson (50) est directement relié au bloc d'alimentation.
EP06706390A 2005-01-31 2006-01-25 Dispositif de chauffage par induction et plaque de cuisson dotee d'un dispositif de chauffage par induction de ce type Active EP1844630B1 (fr)

Priority Applications (2)

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SI200630537T SI1844630T1 (sl) 2005-01-31 2006-01-25 Indukcijska grelna naprava in korito kuhališča s tako indukcijsko grelno napravo
PL06706390T PL1844630T3 (pl) 2005-01-31 2006-01-25 Indukcyjne urządzenie grzejne i panel grzejny z takim indukcyjnym urządzeniem grzejnym

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DE102005005527A DE102005005527A1 (de) 2005-01-31 2005-01-31 Induktionsheizeinrichtung und Kochfeldmulde mit einer solchen Induktionsheizeinrichtung
PCT/EP2006/000619 WO2006081967A1 (fr) 2005-01-31 2006-01-25 Dispositif de chauffage par induction et plaque de cuisson dotee d'un dispositif de chauffage par induction de ce type

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EP (1) EP1844630B1 (fr)
JP (1) JP4925343B2 (fr)
KR (1) KR101285910B1 (fr)
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AT (1) ATE451818T1 (fr)
DE (2) DE102005005527A1 (fr)
ES (1) ES2337922T3 (fr)
PL (1) PL1844630T3 (fr)
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WO2006081967A1 (fr) 2006-08-10
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JP4925343B2 (ja) 2012-04-25
DE502006005577D1 (de) 2010-01-21
DE102005005527A1 (de) 2006-08-03
SI1844630T1 (sl) 2010-02-26
PL1844630T3 (pl) 2010-05-31
US7786414B2 (en) 2010-08-31
EP1844630A1 (fr) 2007-10-17
JP2008528918A (ja) 2008-07-31
ATE451818T1 (de) 2009-12-15
KR20070107731A (ko) 2007-11-07
US20070278215A1 (en) 2007-12-06
KR101285910B1 (ko) 2013-07-23
CN1943274A (zh) 2007-04-04

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