EP0757508B1 - Kochmuldeneinheit mit mehreren unterhalb einer Platte angeordneten Kochstellen - Google Patents
Kochmuldeneinheit mit mehreren unterhalb einer Platte angeordneten Kochstellen Download PDFInfo
- Publication number
- EP0757508B1 EP0757508B1 EP96111324A EP96111324A EP0757508B1 EP 0757508 B1 EP0757508 B1 EP 0757508B1 EP 96111324 A EP96111324 A EP 96111324A EP 96111324 A EP96111324 A EP 96111324A EP 0757508 B1 EP0757508 B1 EP 0757508B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hob
- cooking
- optionally
- thermal insulation
- heating element
- 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
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
- H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
- H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater
Definitions
- the invention relates to a hob unit with several below a plate, in particular a glass ceramic plate, arranged, arranged in at least one heating zone Heating elements and hotplates containing thermal insulation, in particular radiant hotplates and a method for their Production.
- Usual hob units of this type consist of one Metal trough on the underside of a glass ceramic plate is arranged or carries it itself. There are individuals in it Radiation hotplates arranged, which are themselves a sheet metal tray have in which on thermal insulation material Heating elements are attached, see e.g. US-A-3 870 862. Each individual radiant heater is by resilient bracket parts acting on the carrier shell pressed onto the underside of the glass ceramic plate (see DE 27 60 339 C2 and DE 36 13 902 A1).
- the object of the invention is to provide a hob unit create a simplified manufacturing, assembly and Testing enables, in particular the saving of components enables and with given space conditions enables improved thermal insulation.
- thermal insulation in the trough preferably in the form of separate molded parts, can use separate sheet metal trays for each hotplate omitted. This enables thermal insulation in particular down to make it thicker so that it covers the entire surface Space available, limited by the installation depth exploits.
- the thermal insulation can also be independent to the side of any basic form and must be in their shape does not always correspond to the heating zone.
- the individual thermal insulation components can directly to Be receptacle belonging to the trough, for example on punched out of the trough and on the corresponding Place optionally bent sheet metal tabs.
- the heating element carrier which is an independent one Component is, remain on the trough floor, so that the thermal insulation behaves practically telescopically and thereby exploiting the height in an ideal manner. It is also possible to form the trough in two parts, namely from a circumferential frame and one contained the floor Part, both by spring means provided on the edge in In the sense of a compression. This allows the Suspension for all hotplates can be made together, with plastically deformable spacers necessary alignment of the individual hotplates for adaptation can be done to the plate.
- the unit can be together with an integrated control, regulation, monitoring and Connection system a prefabricated, connectable component form.
- the control functions of the individual hotplates can sometimes be more complex Components are used that are in parallel and serial Information processing control the individual functions, for example pot detection, i.e. the control of the Switching on depending on the placement of a suitable cooking vessel.
- pot detection i.e. the control of the Switching on depending on the placement of a suitable cooking vessel.
- thermal insulation use by the material of its kind, composition and density and processing exactly according to the Requirements can be chosen.
- a more form-fitting thermal insulation material be used as for the insulation pad, while e.g. in the case of the heating element carriers in addition to the thermal insulation property also particularly on the temperature resistance to watch out for.
- the boundary part is spanned by a ring, can this is an induction coil for a pot detection system form. But it is also suitable for an external, the Boundary part to form the clamp that holds especially if the delimiting part consists of several Ring sectors or sections is composed to one Summarize ring. It can be in a recess of the Boundary part an outer, e.g. flange-like projection of the heating element support to be positively enclosed, so that after the ring is tightened, a hotplate unit is created, which is self-contained without being special Carrier shell needs.
- the limiting part can be fiber-free, for example consist of vermiculite and possibly also through air chambers or filled with even better thermal insulation material Chambers be designed as a "sandwich construction".
- the Ring that is mechanically closed, but electrically open can also be the mechanical bracket for others Form components, for example a temperature limiter, which can be fixed to it by means of snap connections. It is also possible to attack this element with an edge To provide brackets that the boundary part and Holding the heating element carrier together and possibly a spring element forms.
- Figures 1 and 2 show a hob unit 11 with four Cooking zones 12, of which three individual cooking zones are different Size with only one heating zone 13 each while the fourth has two heating zones, one of which is like that of the other hotplates is circular, also individually can be switched on while the adjoining heating zone 13a to form an elongated hotplate, e.g. to Heating an oval oven, can be switched on.
- the hotplates 12 are arranged in a trough 14 which an edge 15 with a horizontal, circumferential support shoulder 16 for receiving a plate 17, preferably one Glass ceramic plate.
- a raised outer edge 18 centers the plate and surrounds the outer edge.
- the hob usually has a rectangular shape with a corresponding one Arrangement of the hotplates in the square.
- the trough 14 consists of a rectangular, relatively flat Tin bowl with side walls 19 and a bottom 20. Im Interior 21 are the hotplates without their own sheet metal tray arranged. They are made from individual thermal insulation components 22 built up individually and immediately, however in mutual interaction, attached to the trough are. One of the thermal insulation components is a disc-shaped one Heating element carrier, which is in a recess 26 of the sheet metal recess is partially recorded and centered. Between the surface 24 of the heating element carrier 23 and the plate 17 a distance that forms the heating chamber 27 of the heating zone 13.
- a limiting part 28 which is annular. It is via an angular, circumferential recess 80 to the Heating element carrier 23 connected to its outer circumference and extends to the plate 17, where it rests resiliently.
- This suspension is in the embodiment of FIG resilient spacers 81 are produced which are made of the material of the trough bottom 20 punched out and bent sheet metal spring parts are trained. You press on the bottom of the limiting part formed as a ring with an L-shaped cross section 28 and push it up against the plate 17. By overlapping and interlocking with the heating element carrier you can move vertically against it, without a radiation or convection gap in the boiler room 27 create.
- Side holder 82 is provided, which is also made of sheet metal of the trough bottom L-shaped sheet metal tabs can be trained. They grab with their horizontal Legs in recesses 84 in the outer circumference 86 of the annular Limiting part 28 and lay it opposite to the side Movements in Fig. 2 to the left and also in the transverse direction to this firmly. You can use one or two of these side holders be provided relatively close to each other. Is opposite him a side holder 83, which is designed as a Z-shaped sheet metal tab is. Its upper, essentially vertical leg 85 lies parallel to the outer side 86 of the limiting part.
- a hole 87 is provided, which with a corresponding horizontal hole 29 in the limiting part is aligned.
- An additional, also designed as a sheet metal tab 89 lies in the same circumferential area as the side holder 82 and supports an outer surface 30 of the heater base 23 and grips with a diagonally inward curve also partially in an oblique corner recess.
- the heating element carrier 23 in FIG inserted so obliquely on the right that it with its outer surface 30 rests on the side holder 89, and then in the in Fig. 2nd shown position lowered so that it is then in the recess 26 is included.
- the ring-shaped Limiting part 28 inserted obliquely in the same way, so that its side holder 82 engages in the recess 84. This is large enough to be able to intervene Ensure inclination.
- the limiting part by tipping it clockwise into the position shown, it being the heating element carrier partially surrounds.
- a rod-shaped temperature sensor 31 of a temperature limiter 32 through each other aligned holes 87 and 29 inserted. So they form a bolt 90 which the limiting part and thus the Heating element carrier 23 and the temperature controller 32 itself the trough defines, however, the limited vertical mobility of the limiting part. This is hole 29 designed accordingly large in the vertical direction.
- FIG. 3 shows an embodiment in which the side walls 19 the trough are divided into two. They consist of an upward directed leg 91 and one adjoining the outer edge 15 downward leg 92, the parallel to the leg 91 around the trough.
- This edge component 93 formed from the edge 15 and the leg 92 is made from a sheet metal profile, which is then attached to the outer edge 18 a horizontal, slightly bent down outside Support edge 94 forms that on a countertop of a piece of kitchen furniture can rest in the opening Hob unit 11 is inserted.
- This profile could also be manufactured as a continuous casting profile.
- Fig. 3 also shows that the two movable against each other Legs 91, 92 together by a spring wire 95 are connected that they try to reduce the trough height and thereby the contact pressure on the top of the Exercise limiting part 28.
- the spring wire 95 in outward-facing, hook-shaped retaining tabs inserted, each alternately on the two legs 91, 92 so are provided that the wire is wavy when inserted bends and thereby a corresponding spring force exercises.
- the spacers 81 can be designed in this way be that they are less elastic than plastic deformed. It can then be done through a general Alignment when installing the correct distance be made while the permanent suspension that also because of a certain tendency to deform in the thermal insulation materials is necessary due to the overall suspension is maintained between the plate and the trough.
- FIG. 4 shows an attachment of the temperature limiter 32 directly on the trough floor 20 by means of a on the temperature limiter provided, angled sheet metal connector, which on Trough bottom e.g. be fixed by spot welding can.
- FIG. 13 shows a hotplate 12 with a heating element carrier 23 and a multi-part limiting part 28.
- Es is ring-shaped overall, but from individual ring segments 28a composed, which are interlocked.
- a pot detection sensor 44 forming clamp-shaped ring 97 um, which is open at one point and there are two outward turns 98 has, the ends of which form tab connectors 99.
- the Ring is made by means of an electrically insulating connecting means, for example a ceramic clip or one Screw 100, clamped together and thus clamps the hotplate unit together.
- Corresponding tabs are on the tab terminals 99 plugged the sensor 44 with the corresponding Connect the control unit for an inductive pot detection system.
- Openings 58 can also be provided in the ring 97, in the snap or connector 57 are inserted to the Define temperature limiter 32 (see also Fig. 2).
- FIG. 14 shows a partial cross section through the embodiment according to FIG Fig. 13. It can be seen there that the ring segments 28a of the Limiting part 28 in cross section towards the inside have open recess 101, in which a corresponding Ring projection 102 on the outer circumference of the heating element carrier 23 intervenes. Since the ring segments 28 through the tire or Clamp 97 are held together by the Attaching the pot detection coil a coherent Cooking area created.
- Fig. 15 shows an embodiment in which the annular Limiting part 28 can be formed in one piece.
- the cross section of the limiting part 28 L-shaped the short leg of the L is on top and directed towards the inside is to about the surface 24 of the heating element carrier 23 protrude and secure this upwards.
- the tire 97 is also here, as in the other versions of the Outer circumference and extends to the upper edge of the boundary part, i.e. to the underside of plate 17.
- FIG. 16 shows an embodiment, also with a tire 97, in which the limiting part 28 is formed in one piece as a ring is. It has a modified L-shape in cross-section, whereby the inwardly protruding L-leg lies at the bottom, so that it is a a lower one provided with a circumferential recess 102 Forms the outer edge of the hob component. In the area this recess 102 are also blind holes 103 in the fastening part 28 brought into the corresponding during assembly Can engage projections on the trough. Also are they are suitable to be used during the automatic insertion process Alignment aids to serve.
- the heating element carrier 23 is the inner shape of the limiting part 28 adjusted and accordingly has an upper, on Circumference protruding flange and is slightly smaller at the bottom Diameter executed.
- the heating element carrier 23 on the inside of the Limiting part 28 attached in that after insertion in several places on the circumference a depressing from above Stamp material of the heating element carrier (28) in the form 106 displaced into the inside of the limiting part 28.
- the heating element carrier 23 is on the limiting part 28 by deformation of the thermal insulation material locked.
- the stamp forms recesses or impressions 107 on the surface 24. This deformation happens preferably in several places on the circumference, can but also be carried out all around. It results in a good hold of both thermal insulation molded parts to one another, also because that the deformed material at the deformation points can be a little more compressed.
- the resulting gearing can also, alone or in addition, be made vertically instead of as shown in Fig. 16 horizontal.
- the recesses could be undercut, i.e. expanding, being educated.
- Depending on the material properties can also connect the limiting part 28 be deformed.
- FIGS. 13 to 16 make one Radiant heating cooktop created without the usual Tin plate gets along. It is also possible due to the Protection of the most stressed parts on reinforcing fibers to waive so that the entire radiant heater can be manufactured fiber-free.
- the edge can, like will be explained in the following, from a relatively stable Material exist, but with air chambers or with better thermal insulation material than the rest of the material Delimiting part 28 have filled chambers. It would be so for example also possible with the material of the heating element carrier 23 filled shape 106 to make larger and over a substantial portion of the height of that from the limiting portion 28 formed edge to extend so that a Execution similar to Fig. 11 arises.
- the the pot detection coil forming ring or tire 97 is mechanically closed, however electrically "open".
- the connection can be galvanic, as described or via an air transformer or different types of transformer, for example with ferrite, happen.
- Fig. 17 shows an embodiment in which the rest of the similar 15 as the outer surface 86 of the limiting part 28 is designed so that individual brackets 108 can be recorded, which on the delimiting part 28 fixed and a piece above the floor 109 from the limiting part 28 and heating element carrier 23 and extend them stick together.
- the clip 108 holds with a nose 111, which is in a groove 112 engages on the outer circumference 86 of the limiting part 28.
- the clip can be made from resilient sheet metal.
- thermal insulation components 23 When choosing the thermal insulation material and its design in addition to temperature resistance and if possible also electrical insulation mainly from each other normally excluding properties, namely good Thermal insulation properties and mechanical strength. Under this requirement is the material of the thermal insulation components 23 selected.
- a pyrogenic silica airgel is for the heating element carrier 23 preferred that, with appropriate binders and Opacifiers, for example made of metal oxides, mixed, to a tablet-like shaped body, i.e. one more or less thick disc, adapted to the shape of the heating zone is pressed. To increase the mechanical strength reinforcing agents can also be added, however if possible fibers should be avoided.
- the heating element support 23 has on the other level Surface 24 in the middle of an upward projection 33, on which the temperature sensor 31 of the temperature limiter 32 rests. This sensor protrudes depending on the size of the Heating zone up to the middle or a little further above, so that even with different heating zone diameters uniform temperature sensor length can be selected.
- a heating element carrier with sufficient thermal insulation quality and mechanical strength, above all, if it can have a greater thickness.
- a special advantage of the integrated hob concept is that the space which was necessary to accommodate the radiator Arrange the carrier shell in the trough and press it upwards, is now available for thermal insulation so that with the same overall height of the trough, some thermal insulation Can be millimeters thicker.
- the limiting part 28 consists of mechanically stronger Material that is both more shape-resistant and more abrasion-resistant is.
- Such materials can, for example, be made from slurries formed by ceramic fibers, felt or paper-like thermal insulation materials. However, it will strived to generally increase fibers in thermal insulation materials avoid. It is therefore preferred to be very stable Material, such as vermiculite, prefers an expanded mica that with good mechanical properties, a good electrical one Insulator with reasonable thermal insulation and temperature resistance properties is. That is from this material Boundary part 28 shaped, which especially with great edge sharpness is possible, so that it is particularly accurate Optical limitation of the heating zone is particularly suitable.
- the material has a mechanical consistency like Plastic or integral foam with a closed surface.
- inserts 34 may be provided.
- Fig. 11 shows one Insert 34 on the side of the heating chamber 27 facing the Limiting part. It prevents heat from migrating to Side.
- the insert is in the form of a circumferential ring molded into a groove 35 in the limiting part 28.
- the above and Flanges that remain at the bottom are not so thermally endangered, as they are on the one hand on the plate 17 and on the other rest on the heating element carrier 23.
- This composite construction can also be used in other respects, for example in the the positions surrounding the controller part to be explained later or other, provided from above or from the outside Recesses the boundary part.
- the arrangement of the hotplates shown in Fig. 1 in a common trough makes it possible to control, regulate, Monitoring and connection elements for all hotplates to summarize, while at least regarding the components related to the hotplates themselves, for example the temperature limiter and connecting cables, heat detectors or pan detection systems, assigned to each individual hotplate were.
- Fig. 1 it is shown that the temperature limiter 32 in a central area 36 between the four hotplates lie. It is also possible to use the four temperature limiters if necessary together with hot alarm contacts that are from the same Temperature sensors are acted upon in a common Housing 37, from which the temperature sensor go out in a star shape. The hotplate connections also run from there 38 directly to the heating elements. Of the common housing runs from one indicated in Fig. 1 and 4 Wiring harness 39 to the input or display field 40, the in this case to the top and through the glass ceramic plate has adjusting knobs 41 extending therethrough. Instead of one Wiring harnesses made of strands or solid wires can also be a multi-lane matrix of flat conductors can be used.
- Indicator lamps 42 for a hot display are in a corresponding manner Arrangement to the hotplates provided at a suitable location. Temperature or power control or regulation organs by the adjustment buttons 41 can be influenced in the area the setting field 40 or within the common Housing 37 may be provided.
- the residual heat indicator usually referred to as a hot indicator ensures that the user is made aware of it is that a hotplate is still dangerous for touch could have temperature.
- a second contact in the temperature limiter provided, which is actuated by the sensor of the temperature limiter and switches at, for example, 70 ° C.
- the hot display but could also with others, for example electrical Resistance sensors work, especially when a common one Control electronics is available. Can do the same but also perform a control that depends on the switching on of the hotplates works time-dependent by addresses the hot display with appropriate safety margins, when the radiator is turned on for a period of time is. It runs for the average cooling time below a dangerous temperature after switching off the Heating element and only then switches the hot display out. It can be provided, for example, that only one brief, e.g. accidental switching on, the hot display not yet take effect.
- Controller 43 is for four Cooking areas 12 are provided, two of which (top left and bottom right) each have a heating element 25, while the two others (bottom left and top right) two each Have heating elements, e.g. for a hotplate with two heating zones 13, 13a.
- the control unit also contains a pan detection electronics.
- induction coils 44 are located on the hotplates, one for each heating element, with the control unit are connected.
- These pan detection sensors are with one Multiplexer 45 connected, the serial processing of the Signals enabled.
- the signals arriving in sequence are in a specially adapted, integrated circuit (ASIC) 46 processed, partly under the control of a Microprocessor 47.
- ASIC integrated circuit
- the resulting output signals are transmitted via a driver 48 Circuit breakers 49 supplied as electromechanical Relays are shown, but also as electronic Power components can be formed.
- the power control takes place outside of the control unit 43 in power control units 50, which the adjustment buttons 41 are operated and as individual or can be combined in a common block 51.
- These power control devices also known as energy controllers usually work with impulsive performance release and can work electrothermally or electronically.
- this power control in to include the control device 43 and only the setting elements pull it out.
- It could be any Act input means, for example rotary encoders, such as Potentiometer, or key inputs, preferably touch switches, possibly also through the glass ceramic plate Act.
- the setting field could 40 a keypad can be created, by the Touching the user's choice of individual hotplates and their attitude can bring about.
- the microprocessor also controls an appropriate one Control 52 the hot display field 42 in the form of light emitting diodes.
- the temperature limiters are wired provided outside the control unit 43, can however, also be largely structurally associated with it.
- the control device is provided in the central area 36. With appropriate thermal insulation it is against heat from the Shielded heating zones. As Fig. 2 shows, it can heat Deliver over the floor 20, if necessary also upwards over the Glass ceramic plate, if that is tolerated by the electronics Temperature level is relatively high. Further measures can be taken contribute to cooling here, for example an interruption of the floor 20 around the central area 36, for example through the slots 52 in Fig. 2, through in this Area attached heat sink or even by active Cooling using a Peltier element.
- a common control unit allows, too technically relatively complex functions, such as pot detection, to make usable because of the effort for several hotplates is hardly bigger than for one.
- the evaluation of the signals of the pot detection sensors 44 can according to the prior art, for example according to the DE-40 04 129, the content of which is expressly referred to here is taken.
- FIGS. 6 and 7 show an embodiment, in which the limiting part 28 one from its top outgoing, annular slot 75 in the inserted a single-turn loop as a pot detection sensor 44 is. It consists of metallic band material and is, as shown in Fig. 7, slightly wavy to be in the slot to hold on to yourself. Your connections are central Area 36 led and there with as little free space as possible Line length connected to the control unit 43.
- Fig. 8 shows an embodiment in which the pot detection sensor 44 induction coil in the form of a single-winding Round wire into the material of the limiting part 28 close to heating zone 27, but thermally shielded, is embedded.
- Fig. 9 shows an embodiment in which as a pot detection sensor 44, as in Figures 6 and 7, an upright Tape made of flat material is used, which, similar to that Heating conductor 25, in the heating element carrier 23 by pressing is embedded over part of its height. Against one too Strong warming can be, for example, reflective Coating may be provided on the belt. Beneficial for this pot detection coils is that the respective hotplate is formed without a surrounding sheet metal edge that could form an unwanted shield.
- connection also allows the connection to be laid to design particularly cheap. For one, can by merging the most diverse regulatory and Control units on a large part of internal wiring can be dispensed with and, on the other hand, the interconnection can also the individual hotplates with the central control unit or other organs already during the production of the hotplates and with it the trough.
- a wiring harness 39 in which the cables are originally attached individual switching elements, for example the temperature limiters 32, are provided, can finally be a common one Plug (97 in Fig. 1) for connection to the input or setting devices may be provided.
- connection lengths and positions can be prepared.
- solid wire connections in corresponding channels of the limiting part 28 may be guided.
- An electrical connection is particularly preferred from ribbons or strips 55, which in corresponding Channels 56 are inserted in the limiting part 28.
- the canals can, for example, by offset stamps easily manufactured even within the limiting part become.
- the flat conductors 55 are inserted into them or inserted. But it is also possible to use appropriate Recesses in the parting plane between the boundary part and to carry the heating element support, being put together these parts are automatically included.
- the heating conductor tapes can, for example, be made of nickel-plated Steel band exist, possibly by spot welding 57 be connected to each other. You can also already as corresponding matrix can be produced by punching. The lower electrical conductivity of iron can result from appropriate dimensions are balanced. In each The case is heat-resistant and light weldable conductors.
- the production of the hob unit can be done in one continuous Process flow take place because the radiant heater no longer manufactured separately for the individual hotplates and need to be installed in a hob, but only when installing the hob unit individual basic components arise.
- the manufacturing process can proceed as follows: In the prefabricated bowl-shaped metal trough 14 the fasteners, so the spacers 81 and Side brackets 82, 83 provided by die cuts in the bottom were bent up accordingly. Then the heating element support 23 with heating elements 25 fastened thereon automatically, i.e. possibly from a handling machine, diagonally (from swung in at the top right in Fig. 2) and in the recess 26 positioned. After that, in the same way Limiting part 28 pivoted in and between the side holder 82 and 83 introduced. Then the temperature limiter 32 with its sensor 31 inserted through the holes 87, 88, so that the limiting part 28 and thus the entire hotplate locked in position.
- the temperature limiter can thereby by means of snap elements 57 on the side holder 83 be engaged. These snap elements are on the Feeler facing side of the head are provided and can be made a centrally slotted sheet metal part with a barb-like Head exist that in a corresponding opening on Side holder 83 snaps into place.
- control device 43 Before or after installing the temperature limiter, depending on their position and arrangement also other control and Controls arranged in the central region 36 of the trough, for example the control device 43.
- Controls can be provided by, for example at the temperature limiters 32 already strands in the intended Length and welded with finished ferrules. They are then combined into a wiring harness, the is led out together. Another option is there in bringing in a pre-made wiring harness that already prepared ends on both sides in the corresponding lengths and arrangements.
- the pot detection sensors in the form preferably single-winding coils are pressed into the limiting part.
- This is followed by preferably automatic welding all connections, i.e. for example the one at the temperature limiters provided connections for the heating elements 25 etc.
- the entire hob unit can then be tested undergo where not just the right wiring is checked, but also the heating elements and the controller in Function.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Electric Stoves And Ranges (AREA)
- Cookers (AREA)
- Baking, Grill, Roasting (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Description
- Fig. 1
- eine perspektivische Ansicht einer Kochstelleneinheit (ohne Glaskeramikplatte)
- Fig. 2
- einen vertikalen Teilschnitt durch die Einheit,
- Fig. 3
- eine perspektivische, teilgeschnittene Detailansicht eines Teils der Mulde
- Fig. 4
- ein Detail der Befestigung eines Temperaturbegrenzers,
- Fig. 5
- eine schematische Draufsicht auf eine Kochmuldeneinheit
- Fig. 6
- ein Detail der Befestigung einer Topferkennungsspule im Schnitt
- Fig. 7
- die Ausführung nach Fig. 6 in Draufsicht,
- Fig. 8 und 9
- weitere Ausführungsformen der Befestigung einer Induktionsspule für die Topferkennung,
- Fig. 10
- ein Detail der Verlegung von Anschlußleitungen,
- Fig. 11
- einen Teilschnitt mit einer zusammengesetzten Ausführung des Begrenzungsteils,
- Fig. 12
- ein Blockschaltbild eines Steuergerätes,
- Fig. 13
- eine perspektivische Ansicht einer Kochstellen-Einheit
- Fig. 14
- einen Teilschnitt durch Fig. 13
- Fig. 15 bis 17
- Varianten im Teilschnitt
Claims (13)
- Kochmuldeneinheit mit mehreren unterhalb einer Platte (17), insbesondere einer Glaskeramikplatte, angeordneten, in wenigstens einer Heizzone (13, 13a) angeordnete Heizelemente (25) und eine Wärmedämmung (22) enthaltenden Kochstellen (12), insbesondere Strahlungskochstellen, die innerhalb einer aus Flachmaterial, wie Blech, bestehenden Mulde (14) angeordnet sind, dadurch gekennzeichnet, daß die Wärmedämmung der Kochstellen (12) einzeln und unmittelbar an der Mulde (14) angeordnet ist.
- Kochmuldeneinheit nach Anspruch 1, dadurch gekennzeichnet, daß die Einheit (11) zusammen mit einem integrierten Steuerungs-, Regel-, Überwachungs- und Anschlußsystem ein vorgefertigtes, anschlußfähiges Bauelement bildet und vorzugsweise das Steuerungs-, Regel-, Überwachungs- und Anschlußsystem alle Steuerungs-, Regel-, Überwachungs- und Anschlußeinrichtungen bis auf den Netzanschluß und ggf. Einstell- bzw. Eingabeeinrichtungen (40) enthält.
- Einheit nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß wenigstens ein Wärmedämmbauteil (22) jeder Kochstelle (12) unmittelbar an zur Mulde (14) gehörenden Aufnahmemitteln (26, 82, 83) geführt ist, und/oder die Aufnahmemittel (81, 82, 83) an der Mulde (14) so ausgebildet sind, daß im Reparaturfall eine eigenständige Kochstelle einsetzbar ist.
- Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jede Kochstelle (12) zwei gesonderte Wärmedämmbauteile (23, 28) enthält, und zwar einen vorzugsweise tablettenartig aus gepresstem, schuttfähigem Wärmedämmstoff, wie Kieselsäureaerogel, geformten Heizelementträger (23) und einen aus einem relativ gestaltfesten, vorzugsweise faserfreien Wärmedämmstoff, wie Vermiculite™ , geformten, ringförmigen, die Heizzone umgebenden Begrenzungsteil, das insbesondere in seinem Abstand von der Mulde (14) durch vorzugsweise federnde Abstandhalter (81) veränderbar geführt ist, wobei insbesondere das ringförmige Begrenzungsteil (28) und der Heizelementträger (23) in vertikaler Richtung relativ zueinander bewegbar sind und/oder das ringförmige Begrenzungsteil (28) durch Seitenhalter (82, 83) an der Mulde (14) aufgenommen und daran durch einen vorzugsweise durch einen Temperaturfühler (31) eines Temperaturbegrenzers (32) gebildeten Riegel festgelegt ist, der insbesondere dadurch auch selbst festgelegt ist, wobei ggf. die Abstands- und/oder Seitenhalter (81, 82, 83) bzw. ihre Befestigungsstellen am Boden (20) der Mulde (14), vorzugsweise als vor-ausgestanzte und ausbiegbare Blechausschnitte vorgesehen sind und/oder am Muldenboden (20) in einem an unterschiedliche Größen und Anordnungen von Kochstellen (12) anpassbaren Raster angeordnet sind.
- Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Mulde (14) federnd in ihrem Abstand zur Platte (17) gelagert ist, vorzugsweise durch Federmittel (95), die zwischen der Mulde (14) und einem rahmenartigen Plattenträger (93) vorgesehen sind.
- Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in einem zwischen den Kochstellen (12) gebildeten zentralen Bereich (36) elektrische Anschlüsse (38), Temperaturbegrenzer (32), Regelfühler, Anschlüsse von Topferkennungssensoren (44) und/oder Restwärmeanzeige-Signalgeber (42) angeordnet sind, wobei ggf. Temperaturbegrenzer (32) mit einem Halter unmittelbar am Muldenboden befestigt sind und/oder in dem zentralen Bereich (36) Elektronikbauteile (43), insbesondere für ein Topferkennungssystem, angeordnet sind, der ggf. wärmegedämmt und durch thermische Abkopplung und/oder passive oder aktive Kühlmittel gekühlt ist.
- Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein Restwärmeanzeigesystem (42) zur Anzeige der Verbrennungsgefahr bei Berührung der Kochstelle (12) zeitgesteuert ohne Temperaturfühler ausgebildet ist und/oder als vorverdrahtete Einheit mit Federsteckverbindungen angeschlossen ist.
- Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein insbesondere aus nur einer Windung bestehender induktiver Sensor für ein Topferkennungssystem in ein Begrenzungsteil (28) der Heizzone (13) eingesetzt ist, ggf. durch Einbetten oder durch Einstecken eines vorzugsweise gewellten Ringes aus Flachmaterial in eine von der der Platte (17) zugekehrten Seite des Begrenzungsteils (28) ausgehende Nut (75) und/oder der Sensor im Randbereich eines Heizelement-Trägers (23) angeordnet ist, vorzugsweise als ein teilweise in den Heizelement-Träger (23) eingebetteter, aufrecht stehender Flachmaterialstreifen.
- Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Wärmedämmbauteile (22) aus unterschiedlichen Wärmedämm-Materialien zusammengestellt sind, wobei vorzugsweise in einen relativ gestaltfesten Wärmedämmbauteil (28) Einsätze (34) aus besser wärmedämmendem Material vorgesehen sind, insbesondere im die Heizzone (13) umgebenden Bereich eines ringförmigen Begrenzungsteils (28).
- Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß elektrische Anschlüsse der Kochstelle, die vorzugsweise von zugehörigen Temperaturbegrenzern (32) ausgehen, an diesen vormontiert vorgesehen sind und bei der Montage zu einem ggf. mit einem gemeinsamen Mehrfachstecker (97) versehenen Kabelbaum (39) zusammengefaßt sind und/oder die elektrischen Anschlüsse (38, 55) in die Wärmedämmbauteile (22) integriert oder zwischen sie eingeschlossen, insbesondere in teilhinterschnittenen Kanälen (56) angeordnet sind, wobei ggf. die elektrischen Anschlüsse als Flachleiter (55), vorzugsweise auf Eisenbasis, ausgebildet sind und ggf. als eine ausgestanzte Matrix ausgebildet sind.
- Einheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Begrenzungsteil (28) von einem Ring (44) umspannt ist, der ggf. eine Induktionsspule für ein Topferkennungssystem bildet, insbesondere aus mehreren Ringsektoren (28a) zusammengesetzt ist und/oder das Begrenzungsteil (28) und der Ring (44) die äußere Begrenzung der Kochstelle (12) bilden.
- Einheit nach dem Anspruche 11, dadurch gekennzeichnet, daß das Begrenzungsteil (28) mit dem Heizelementträger (23) formschlüssig verbunden ist, insbesondere das Begrenzungsteil (28) wenigstens eine Ausnehmung (101, 106) aufweist, in die ein Teil (102) des Heizelementträgers (23) eingreift und das ggf. im Bereich einer Verformung des Heizelementträgers (23) liegt.
- Verfahren zur Herstellung einer Kochmuldeneinheit (11) nach einem der Ansprüche 1 bis 12 mit mehreren unterhalb einer Platte (17), insbesondere einer Glaskeramikplatte, angeordneten, elektrische Heizelemente (25) und eine Wärmedämmung enthaltenden Kochstellen (12), insbesondere Strahlungskochstellen, bei dema) mit elektrischen Heizelementen (25) versehene Heizelementträger (23) auf dem Boden (20) einer für alle Kochstellen (12) gemeinsamen Blechmulde (14) positioniert werden,b) Begrenzungsteile (28) über den Heizelementträgern (23) angebracht und formschlüssig verriegelt werden,c) im Bereich der Kochmulde (11), insbesondere in einem zentralen Bereich (36) Regel-, Überwachungs- und Steuereinrichtungen, ggf. unter Verriegelung der Begrenzungsteile (28) angeordnet werden,d) ggf. als Induktionsspulen ausgebildete Topferkennungssensoren (44) im Randbereich der Durchbrüche in das Begrenzungsteil (28) eingebracht werden,e) ggf. ein Eingabe- bzw. Einstellfeld (40) montiert wird,f) elektrische Anschlußverbindungen (57) zwischen den Anschlußleitungen (38, 39, 55) und den Heizelementen, Regel-, Überwachungs- und Steuereinrichtungen sowie ggf. den Topferkennungssensoren (44) und dem Eingabe- und Einstellfeld (40) automatisch verschweißt werdeng) und danach ggf. die gesamte Einheit einem Prüfvorgang unterzogen wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19527823 | 1995-07-29 | ||
DE19527823A DE19527823A1 (de) | 1995-07-29 | 1995-07-29 | Kochmuldeneinheit mit mehreren unterhalb einer Platte angeordneten Kochstellen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0757508A2 EP0757508A2 (de) | 1997-02-05 |
EP0757508A3 EP0757508A3 (de) | 1997-11-19 |
EP0757508B1 true EP0757508B1 (de) | 2002-11-27 |
Family
ID=7768140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96111324A Expired - Lifetime EP0757508B1 (de) | 1995-07-29 | 1996-07-13 | Kochmuldeneinheit mit mehreren unterhalb einer Platte angeordneten Kochstellen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0757508B1 (de) |
AT (1) | ATE228750T1 (de) |
DE (2) | DE19527823A1 (de) |
TR (1) | TR199600618A2 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19708904A1 (de) * | 1997-03-05 | 1998-09-10 | Ego Elektro Geraetebau Gmbh | Leerlaufanzeige |
GB2329466B (en) * | 1997-09-19 | 2001-12-12 | Ceramaspeed Ltd | Method of manufacturing an electric heater assembly |
DE19825309A1 (de) * | 1998-06-05 | 1999-12-09 | Bsh Bosch Siemens Hausgeraete | Strahlungsheizungsanordnung mit Stromschienen |
DE19849136A1 (de) * | 1998-10-23 | 2000-04-27 | Ako Werke Gmbh & Co | Kochmulde |
DE10018816A1 (de) * | 2000-04-15 | 2001-10-31 | Ego Elektro Geraetebau Gmbh | Strahlungsheizkörper, insbesondere für ein Glaskeramik-Kochfeld |
DE10102588B4 (de) * | 2001-01-20 | 2006-04-20 | AEG Hausgeräte GmbH | Kochmulde |
DE102004033449A1 (de) * | 2004-07-06 | 2006-01-26 | E.G.O. Elektro-Gerätebau GmbH | Kochfeld mit mehreren Heizeinrichtungen |
KR100771628B1 (ko) * | 2006-05-11 | 2007-10-31 | 엘지전자 주식회사 | 전기레인지 |
DE102006038412B4 (de) * | 2006-08-17 | 2021-12-09 | BSH Hausgeräte GmbH | Kochmulde mit wenigstens einer Bedienelementenanordnung |
ES2343995B1 (es) * | 2008-10-17 | 2011-06-20 | Bsh Electrodomesticos España, S.A. | Material de placa y procedimiento para fabricar un material de placa. |
WO2013046238A1 (en) * | 2011-09-29 | 2013-04-04 | ASTER S.a.s. | Height adjustable burner mounting of a gas cooking device |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
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US3632983A (en) * | 1970-10-13 | 1972-01-04 | Gen Electric | Smooth surfaced, heated cooktop |
US3870862A (en) * | 1973-11-02 | 1975-03-11 | Whirlpool Co | Glass-ceramic cooktop construction |
DE2729930A1 (de) * | 1977-07-02 | 1979-01-11 | Karl Fischer | Strahlungs-heizeinheit fuer glaskeramik-elektrokochgeraete |
DE2760339C3 (de) | 1975-11-14 | 1994-04-14 | Ego Austria Elektrogeraete | Elektrischer Strahlungsheizkörper für Glaskeramikkochplatten |
US4032750A (en) * | 1976-03-26 | 1977-06-28 | General Electric Company | Flat plate heating unit with foil heating means |
DE7814217U1 (de) * | 1978-05-11 | 1978-08-24 | Fischer, Karl, 7519 Oberderdingen | Kochmulde mit einer die kochflaeche bildenden glaskeramikplatte |
DE2943477C2 (en) | 1979-10-27 | 1987-11-26 | E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De | Control switch for hotplate or heat storage device - has rotary setting member also operating switch that connects in extra heating element |
DE7931573U1 (de) * | 1979-11-08 | 1980-02-14 | Attinger Sen., Franz, 8901 Langweid | Einbauherdmulde |
DE3009961C2 (de) * | 1980-03-14 | 1982-10-28 | Schott Glaswerke, 6500 Mainz | Glaskeramik-Kochfeldeinheit zum Einbau in eine Arbeitsplatte |
DE3108640A1 (de) * | 1981-03-06 | 1982-09-16 | Ego Elektro Blanc & Fischer | Meldeeinrichtung zur anzeige des temperaturzustandes von kochgeraeten |
DE3315438A1 (de) * | 1983-04-28 | 1984-10-31 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Heizelement zur beheizung von koch-, heizplatten oder dgl. |
DE8416698U1 (de) * | 1984-06-01 | 1985-09-26 | Carl Kurt Walther Gmbh & Co Kg, 5600 Wuppertal | Elektroherd |
DE3606117A1 (de) * | 1986-02-26 | 1987-08-27 | Ego Elektro Blanc & Fischer | Kocheinheit mit strahlheizkoerper |
DE3613902A1 (de) | 1986-04-24 | 1987-10-29 | Ego Elektro Blanc & Fischer | Kochplatte, insbesondere fuer grosskuechen-herde |
DE8717025U1 (de) * | 1987-12-28 | 1988-06-23 | Jaksch, Adolf, 8000 München | Einbaufähige elektr. Bratplatte |
DE4004129A1 (de) * | 1990-02-10 | 1991-08-14 | Ego Elektro Blanc & Fischer | Einrichtung zum erkennen eines in einer heizzone eines koch- oder waermegeraetes aufgestellten kochgefaesses |
DE4039501A1 (de) * | 1990-12-11 | 1992-06-17 | Ego Elektro Blanc & Fischer | Elektrischer heizkoerper, insbesondere strahlheizkoerper |
FR2681770A1 (fr) * | 1991-09-05 | 1993-04-02 | Tecline | Plan de travail de cuisine en particulier a usage domestique, muni d'au moins un element de cuisson. |
DE4229375C2 (de) | 1992-09-03 | 2000-05-04 | Ego Elektro Blanc & Fischer | Strahlungs-Heizkörper |
DE4229373A1 (de) | 1992-09-03 | 1994-03-10 | Ego Elektro Blanc & Fischer | Heizkörper, insbesondere für Kochgeräte |
GB2270824B (en) * | 1992-09-18 | 1995-12-06 | Redring Electric Ltd | A support structure for a heating element for a hob |
DE4320214A1 (de) * | 1993-06-18 | 1994-12-22 | Belzig Elektrowaerme Gmbh | Anordnungen elektrischer Verbindungen und Elemente hierfür |
DE4331702A1 (de) * | 1993-09-17 | 1995-03-23 | Wacker Chemie Gmbh | Strahlungsheizkörper, insbesondere zum Beheizen einer glaskeramischen Kochplatte |
ES2127296T3 (es) * | 1994-01-15 | 1999-04-16 | Whirlpool Europ | Dispositivo para simplificar la colocacion de los elementos calefactores en una placa de coccion vitro-ceramica. |
-
1995
- 1995-07-29 DE DE19527823A patent/DE19527823A1/de not_active Withdrawn
-
1996
- 1996-07-13 AT AT96111324T patent/ATE228750T1/de not_active IP Right Cessation
- 1996-07-13 DE DE59609909T patent/DE59609909D1/de not_active Expired - Lifetime
- 1996-07-13 EP EP96111324A patent/EP0757508B1/de not_active Expired - Lifetime
- 1996-07-26 TR TR96/00618A patent/TR199600618A2/xx unknown
Also Published As
Publication number | Publication date |
---|---|
TR199600618A2 (tr) | 1997-04-22 |
EP0757508A3 (de) | 1997-11-19 |
ATE228750T1 (de) | 2002-12-15 |
DE59609909D1 (de) | 2003-01-09 |
DE19527823A1 (de) | 1997-01-30 |
EP0757508A2 (de) | 1997-02-05 |
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