JPS6410736B2 - - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to a cooking panel with a gas burner heated cooking device covered by a common or continuous cooking plate made of glass ceramic or similar material.

PRIOR ART Gas cooking panels with continuous cooking plates of glass ceramic or similar materials are known. For example they are German Patent No. 2440701, no.
No. 2721921, No. 2633849 and French Patent No.
It is disclosed in No. 2058722 and No. 2076174. These known cooking panel cooking devices are heated, for example, with radiant burners according to DE 2633849 or with atmospheric burners. The differences between the embodiments according to said patent lie inter alia in the way in which the combustion air and the exhaust gas are treated, which in some devices, for example according to DE 2076174, is carried out with an auxiliary blower.

The basic structure of known cooking utensils of the type mentioned above is described below for the example of a cooking panel comprising a glass-ceramic continuous cooking plate heated by a radiant gas burner and equipped with three cooking zones and one warming zone. .

Each cooking area of the cooking panel is equipped with a radiant gas burner comprising a gas mixing chamber with an externally mounted bench lily tube with gas jets and a perforated ceramic plate extending upwardly into the gas mixing chamber. Consisting of German patent no. 2633849 describes a burner of this type. During operation,
The ceramic plate burns at the end of the hole and is made incandescent by a small flame that acts as a heat radiator. A sheet metal ring, called the exhaust gas ring, is placed in position on this burner device to limit the combustion chamber and is supported on a number of springs attached to the combustion chamber, through a sealing ring made of refractory material.
It is pressed from below against the glass-ceramic cooking surface by a spring. The exhaust gas ring carries the rod telescoping switch for burner temperature limitation, the necessary ignition and monitoring electrodes, and the exhaust gas nozzle. The latter vents into an exhaust gas groove made of sheet metal, which removes the exhaust gas of the burner into the heating area or directly from the cavity. The heating zone is heated by exhaust gas from one or more cooker burners. It consists of an upwardly opening sheet metal trough consisting of a sealing ring and a connection for the exhaust gas duct as well as an exhaust stack. It is likewise pressed against the cooking surface by a spring and directs the exhaust gases into the open air via a baffle plate arrangement, which serves to mix the hot exhaust gases well with the cold surrounding air.

All three cooker burners are completely independent of each other and consist of the above-mentioned main components besides separate parts.

The cooker burner is controlled by a solenoid valve disposed in a cavity within the path of the gas conduit. A separate thermally insulated housing is provided for the temperature sensitive control and monitoring electronics and is mounted to the side or front of the cooking panel, or externally in some other location.

The various known cooking panels of the type described above each consist of similar components with equivalent functions and suffer from a number of disadvantages.

Separate fabrication of the large number and sometimes complex components as individual parts increases costs, and the assembly of the cooking panel naturally requires large assembly expenditures and is associated with high assembly costs. The large number of components makes these cooking panels more prone to failure and reduces the ease of use. In addition, when selecting the diameter of the cooking device and arranging the cooking area on the cooking surface, there are disadvantages such as not only increasing the weight of the cooking panel but also lack of flexibility. There is also the disadvantage that the individual burners have a large structural height, which naturally increases the overall height of the cooking panels, which in turn makes it difficult to integrate these panels into kitchen appliances.
Another disadvantage of known cooking panels with gas-fired burners and continuous cooking plates is that the sheet metal exhaust receiving part becomes extremely hot during operation and thus heats the cavity surrounding the burner device, so that e.g. The auxiliary elements such as the gas control valves and the electric wires that are arranged are exposed to large temperature stresses.

Another disadvantage presented to known cooking panels is that electric ignition and flame monitoring require complex electronic control equipment, which increases cost, and are usually poorly insulated outside the cavity due to their temperature sensitivity. The reason is that it can only be placed in space.

OBJECT OF THE INVENTION The object of the invention is therefore a gas-fired cooking panel comprising a continuous cooking plate of glass-ceramic or similar material, which avoids the above-mentioned disadvantages and is particularly simple to manufacture, has low assembly costs and is cost-effective. It is reliable in operation and easy to use, has a mechanically stable structure, has a small overall weight, good insulation, and has a shallow built-in depth, as well as the selection of the diameter of the cooking area. The object of the present invention is to provide a cooking panel which guarantees the maximum possible freedom in the arrangement of cooking and heating areas on the cooking surface.

Structure of the invention The cooking panel according to the invention basically comprises a continuous cooking plate made of glass-ceramic or similar material, a plurality of separate gas-fired burner devices and an exhaust gas duct for the combustion gases. , the cooking plate forming a cooking surface, and the burner device and the exhaust gas duct being arranged under the cooking plate so as to form a plurality of separate cooking areas and a common heating area, respectively, on the cooking surface. A panel of low-density insulating material shaped to demarcate and surround the plurality of burner devices and the exhaust gas duct in an area outside of the area from which heat is supplied to the cooking and heating areas. The device is characterized in that one structural component is provided.

EXAMPLE The main element of a gas cooking panel comprising a continuous cooking plate of glass-ceramic or similar material according to the invention is a low-mass structural part of refractory material, preferably consisting of aluminum silicate fibers with an inorganic binder, in which All burner devices of the cooking panel, as well as one or more heating zones, are molded together with their essential components.

The above-mentioned structural components for a cooking panel, including three cooking devices heated by radiant gas burners and equipped with warming zones, are shown in plan view in FIG. 1, and in FIG. 2, low-mass structural components made of refractory material 9 shows a longitudinal sectional view along the line - in FIG. 1 of the cooking appliance burner 1 at 9; FIG.

In the plan view of the structural part 9 (FIG. 1) three cooker burners 1 can be seen, which burners 1 have circular perforated ceramic plates or jet plates 6. The injection plate 6 separates the combustion chamber 2 from the gas mixing chamber 3 located below it but not shown in FIG. 1 (see FIG. 2). The exhaust gas duct 5 is the combustion chamber 2
This leads to the center of the cooking panel. A pilot burner 10 shares all the cooking device burners 1 and includes ignition and monitoring means 11, which is centrally located and will be described below.

The exhaust gas duct 5 introduces the exhaust gases centrally into a heating zone 7 with a stack 8 through which the exhaust gases are removed from the combustion chamber. A recess 12 is also molded into the structural part 9 so that a temperature limiter 13, in this case a rod telescopic switch, can be inserted therein with a precision fit and permanently fixed thereto. The electrical leads of the temperature limiter 13, as well as other electrical auxiliaries not shown in FIG.
are embedded together within the main body of refractory material when molded, thus increasing the strength of the structural part 9 after drying. Further details of the structural component 9 made of refractory material are explained in the sectional view of FIG. To be clear,
All parts shown in FIG. 1 behind the cooker burner 1, such as the heating zone 7, are not shown in FIG.

The gas mixing chamber 3 of the burner 1 with gas mixing means 4 is formed in the combustion chamber 2 of FIG. The spray plate 6 is supported around the sheet 17 and is coated with an adhesive (not shown),
It is preferably adhered to this sheet 17 with an inorganic fire-resistant adhesive. The exhaust gas duct 5 is covered by another refractory part 15a including a cover. Cover 15a
is conveniently made of the same material as part 9 and glued thereto. The sealing of the combustion chamber 2 to the cooking plate 14 is ensured by a flexible seal 16 made of aluminum silicate fibers.

All three cooker burners of the cooker panel according to the invention are of similar construction, with structural parts 9 having components such as a combustion chamber 2, a gas mixing chamber 3, an exhaust gas duct 5, a gas mixing means 4 and a heating zone 7. and the exhaust pipe 8 are molded together.

The entire heating means of the cooking panel therefore consists of a single well-insulated structural part 9 of low overall height, which part can be manufactured economically using known wet-forming techniques in the case of silicate fiber materials. and can be integrated into the cooking panel with minimal assembly costs. The additional adjustment work required for the known cooking panel is greatly increased by the precision-fit recess 12 in the part 9 for the temperature limiter 13 and the potential additional recess (not shown) for the ignition and monitoring device 11 of the central pilot burner 10. Partially excluded. There are no restrictions on placing gas mixing devices 4 in the structural part 9, so they can be placed in the structural part 9.
can be placed in the most convenient position, further reducing assembly costs. Furthermore, the freedom in choosing the diameter of the cooking device and its location on the cooking surface is greatest within the framework of the conventional dimensions of the cooking plate 14.

The gas mixing means 4 (FIG. 2) will be explained as follows. The conical hole in FIG. 2 cooperates with a gas injection port 30 as an injector through which combustion air is drawn.
The necessary overpressure in the gas mixing chamber 3 is obtained in that the cross section of the end of the conical bore suddenly decreases into the cross section of the mixing chamber 3. The gas simultaneously forms a vortex and mixes with the combustion air.

The amount of air is regulated by an air throttle plate 32 screwed into a screw 31 of the gas injection port 30. Tests have shown that the burner 1 performs well with this simple mixer means and, in particular, hygiene with respect to the exhaust gases is ensured by the regulating device.

The gas injection port 30 and the air throttle plate 32 are structural parts 9
not integrated into the They are conveniently assembled with prefabricated equipment for all burners and do not require any gas introduction conduits or gas control valves.

The structural part 9 can be manufactured from a single piece or, if the molding technology applied requires it, it can consist of several parts. For example, it can be divided into an upper part and a lower part by a dividing plane shown by line E-E in FIG. pressed together.

Figures 3, 4 and 4a show further embodiments of the cooking device according to the invention. Identical positional numerals in these and all other figures indicate structural parts with the same function or, respectively, identical structural parts. In the embodiment according to FIG. 3, cover 1
5a and the sealing ring 16 (FIG. 2) are replaced by a common cover plate 15, which covers the exhaust gas conduit 5.
(FIG. 3) and from said plate 15 to the combustion chamber 2 (FIG. 1) of the cooking appliance burner 1 and the heating zone 7.
An opening (FIG. 1) is punched out. Like part 9,
The cover plate 15 is made, for example, of an aluminum silicate fiber material with an inorganic binder. It can be glued to the cooking plate 14. Structural parts 9
is in this case split into two parts, formed by an upper part 9a and a lower part 9b, the dividing plane of which is indicated by the line E--E in FIG.

The injection plate 6 made of a special ceramic material is the third
As shown on the left side of the figure, it is adhered to a sheet 17 provided for that purpose. Alternatively, the spray plate 6 is made of silicate material and is molded in one processing step with the upper portion 9a, as shown on the right side of FIG. In contrast to the above-mentioned construction in the case of adhesive spray plates (FIG. 2) made of special ceramic compounds, the spray plates in this case have the configuration of the structural part 9 that results when parts 9a and 9b are glued in plane E-E. Becomes an ingredient.

An embodiment in which the upper part 9a is not glued to the lower part 9b is shown in FIG. The two parts are equipped with elements of a labyrinth seal 23 and are firmly pressed together by pressing means. The remaining parts in FIG. 4 correspond to those in FIGS. 2 and 3.

For stability, the cooking plate 14 is moved in the direction towards the impact-stressed jet plate 6;
Or, there is often a request to be able to bend each. To create the necessary play, the labyrinth seal 23 is made with a gap having a height of 1.5 mm to 2 mm, as shown at 23a in FIG. 4a.

FIGS. 5 and 5a show a simple and easy-to-use device for complete heating device assembly, consisting of structural parts (FIG. 2) and cover plate 15 (FIG. 3).

The structural component 9 is attached to the auxiliary frame 18 together with the cover plate 15.
It is supported by a lever 19 as a tightening member rotatably attached to the frame 21 of the cooking plate 14 by a rivet 22, and is pressed against the cooking plate 14 by the lever 19. On the other hand, the frame 21 is firmly joined to the cooking plate 14 by adhesive 20. A spring element may be used instead of the lever as the tightening member, for example, a spring member may be attached to the frame to press the structural component against the cooking plate.

The above structural component 9 also includes, as shown in FIG.
It can be made of a mixture of refractory materials and sheet metal.
Not only the combustion chamber 2 and the exhaust gas duct 5 but also the heating area 7
Parts 9a and 15 of refractory material (Fig. 3) which also demarcate (Fig. 1) are conveniently retained. Lower part 9b
Instead of (FIG. 3), a mixing chamber 3 (FIG. 6) containing the entire sheet 17 to which the spray plate 6 can be glued is now pressed into the common sheet metal trough 9c. If necessary, further recesses for the area of the heating zone 7 (FIG. 1) and the area of the exhaust gas duct can be pressed into the sheet metal trough. The additional bead serves to soften the sheet metal gutter 9c. Portions 9a and 15a are each installed or glued into the gutter 9c. The mixing chamber 3 is supplied with a gas/air mixture via an applied mixing means 4, for example a ventilator tube which can partially extend into the mixing chamber.

The weight of the cooking appliance is further reduced in that the common structural parts 9 for the cooking appliance burner 1 and the heating zone 7 (FIG. 1) are made of expanded aluminum silicate material with a bonding agent. If this material has open pores, an additional seal is required in the area of the gas mixing chamber of the structural part 9. As shown in FIG. 7, this sealing can be achieved by inserting the gas mixing chamber as a sheet metal bucket 3a into the structural component 9 and gluing the spray plate 6 to the sheet 17a of the bucket. The sheet metal bucket 3a is conveniently firmly glued to the structural part 9a. The sheet metal bucket 3a can also be arranged to surround the gas mixing chamber 3 formed in the structural part 9 from the outside. All other features of the device in FIG. 7 correspond to those of the embodiment described above.

In the case of the above example, cooking device burner 1 (Fig. 1)
has a structure as a radiant gas burner or a gas injection burner including a mixing chamber 3 and an injection plate 6. If the structural part 9 (FIGS. 2 or 3) is modified as in FIG. 8, an atmospheric burner can be used to heat the cooking appliance. Combustion chamber 2 in Figure 8
is larger than that of the previous example and the mixing chamber is eliminated. The burner exhaust gas of the atmospheric burner 24 enters the exhaust gas duct system through an annular exhaust gas duct 5 at the upper edge of the combustion chamber 2 covered by a cover plate 15, which duct system is manufactured and processed, for example, as shown in FIG. The warm zone 7 (FIG. 1) is heated. The exhaust pipe 8 (Fig. 1) of the heating zone 7 is installed using a known method.
8 to promote exhaust gas flow and induce aeration of the combustion chamber 2 of FIG. 8 through the large bottom opening 25. The burner 24 passes through the exhaust gas duct 5 and is ignited by a pilot burner in the center of the cooking panel, which is common to all burner devices in the cooking panel. Only the ignition tube 10b of this pilot burner is shown in FIG. When the cooker burners are individually lit and monitored, an ignition electrode 101 and a monitoring thermocouple 111 are provided on each burner 24 in a known manner in place of a common pilot burner. These parts are shown in dashed lines in FIG.

The operational reliability of cooking panels with radiant gas burners is enhanced if a gas safety switch, protected in a known manner with a thermocouple, is placed in front of the solenoid valve required to control the heating output of the cooking appliance. improve. It is advantageous that the monitoring circuit, including the thermocouple and gas safety switch, operates without auxiliary energy and completely independent of the control circuit, including the solenoid valve, providing added safety in the event of a solenoid valve failure. Convenient and cost-effective monitoring thermocouple 111
A common pilot burner 10 is provided as schematically shown in FIG. 1, which activates a common gas safety switch for all burner devices 1 inserted into the main gas line of the cooking panel.

FIG. 9 shows, for example, the ignition of a three burner system and a suitable pilot burner for monitoring.
10 minute holes or grooves after one on a line
The ignition pipe 10b in which the
The burner head 10a is equipped with a fine hole 10h for monitoring flame and a nozzle 10i. The end of the ignition tube 10b is designed as a nozzle 10f. The device is supplied with gas via a gas injection pipe 10d, so that the required combustion air is drawn in through a through hole 10g in the lower part of the burner head. Burner head 10a, injection pipe 1
0d and the ignition electrode 11a as well as the monitoring thermocouple 1.
1 is also common and is mounted on or inside the box body 10c.

As the gas/air mixture enters the burner, it is discharged through the pilot burner nozzle 10i and end nozzle 10f of the ignition tube, as well as through the fine holes 10h and 10e. A flame edge for igniting the gas/air mixture at the nozzle 10f is formed during ignition both around the burner head 10a as well as along the ignition tube 10b.
The pilot burner is thus ignited, respectively, by the gas/air mixture which combusts into or exits the combustion chamber of the cooker burner.

The auxiliary gas flow is connected to the cooking device burner 1 (Figure 10).
are transferred from the gas mixing chambers into separate feed pipes or into the illustrated holes 27 having a larger diameter than the orifices of the injection plate 6, respectively, through the thin plates 26 delimiting the ignition grooves 26a in the exhaust gas duct 5. The gas/air mixture that is led to the ignition burner head 10a and ignited there, flowing from the injection plate 6, is in turn ignited by the ignition via the already ignited auxiliary gas stream.

The ignition of the gas mixture proceeding from the burner (FIG. 9) through the groove 26a is advantageously ensured by an ignition surface acting as a catalyst, which ignition surface is arranged in the center of the exhaust gas duct 5 instead of the pilot burner. and heated indirectly by either gas or electricity. A thermocouple is provided to monitor ignition and monitor the temperature of the ignition surface.

If separate pilot burners are employed with associated gas safety switches for each burner assembly, the pilot burners can be arranged as shown in FIG. Openings are provided in the structural parts 9a and 9c so that the pilot burner, which together with the ignition electrode 28 forms a unit, projects to the edge of the combustion chamber 2 so that the pilot flame can heat the monitoring thermocouple 11. In the case of this device, the pilot flame of the burner 29 burns directly above the burner injection plate 6,
There is also the advantage that the gas/air mixing chamber of the main burner is ignited immediately after activation of the cooker switch.

FIG. 12 shows a cooker burner 1 consisting of a combustion chamber 2 and an exhaust gas duct 5, both integrated in a structural part 9 of refractory material, and consisting of a gas mixing chamber 3 and a gas inlet 54. The gas mixing chamber is covered by a spray plate 6. The combustion chamber 2 is delimited by a cooking plate 4.

The injection plate 6 and the housing or gas mixing chamber 3 form a pilot burner 1 mounted below the opening 38a.
It includes an opening 38a in the vicinity of the exhaust gas groove for ten pilot flames 41. The ceramic tube 38 in the opening 38a is bonded in a gas-tight manner to the injection plate 6 and to the housing of the gas mixing chamber 3, so that the gas/air mixture of the cooker burner 1 enters the combustion chamber 2 from its mixing chamber 3. do not become.

The pilot flame 41 now burns at right angles to the exhaust gas flow from the cooker burner 1 and is not adversely affected by said flow during the ignition and extinguishing process. In particular, the pilot flame 41 is prevented from being extinguished by pressure waves in the combustion chamber 2 in this pilot burner device.

As another embodiment according to FIG.
3 is mounted above the opening 38a and below the cooking plate 14 to prevent the tip of the pilot flame 41 from overheating the cooking plate 14 in principle. For example, the flow element 43 may consist of a heat resistance wire wound in a flat spiral, and in the case of a transparent cooking surface, at the same time serve as a luminous indicator to indicate the presence or absence of a pilot flame. As it turns out from the luminous hood, it is e.g.
It can be coated with a mixture of thorium and cellocide to improve the luminous area and catalytically promote the ignition of the air/gas mixture in the combustion chamber 2 of the cooking appliance burner 1, e.g. made of platinum or coated with platinum. can be done and/or done.

The method of functioning of the cooker burner 1, in particular its ignition and ignition supervision, is illustrated in the schematic diagram of a cooker panel containing two cooker burners shown in FIG.

Gas safety switch 46 is combined into one block and this is shown in FIG. 13 by the dashed lines around part 46. Manual activation of gas safety switch 46 and electrical transfer switch 47a are mechanically coupled to each other and to manual key 47. This mechanical connection is indicated in FIG. 13 by a dash-dotted line. Furthermore, the double line is the 13th
Figure 3 shows the gas conveying conduit in the figure. A pilot burner device 110a consisting of a pilot burner 110 with an ignition electrode 44 and a thermocouple 45 is assigned to each cooking device burner 1, as is an electromagnetic control valve 50 and an energy regulator 49. Gas safety switch 46, control valve 46, and control valve 50 are combined into a structural device. Ignition electrode 44 is supplied by high voltage means 48 . A switch 49a coupled to a corresponding energy regulator 49 is inserted into the control circuit of the thermocouple 45. With the aid of an electrothermal bimetallic switch, the energy regulator 49 times the supply flow of the control valve 50 and thus controls the temperature of the cooking appliance at the selectable on-time of the cooking appliance burner 1 in a known manner. . The DC voltage required for control valve 50 is generated by rectifier 52 . A bar limit switch (not shown) located in the combustion chamber of the cooker burner 1 cuts off the coil current of the control valve 50 if the cooker temperature exceeds the maximum allowable value.

In order to ignite one of the two cooker burners 1, its energy regulator 49 is energized, so that the contacts 19a in the thermocouple circuit are also closed. The assigned control valves 50 open simultaneously. The control valve 50 is then turned off by the changeover switch 47a, prohibiting gas delivery to the cooking device burner 1 while the pilot burner 110 continues to be ignited. At the same time, the selector switch 47a switches the high pressure means 48 to be energized and activates the spark device 44 of the pilot burner 110. Both pilot burners are supplied with gas and ignited via a gas safety switch 46 which is opened simultaneously by a manual key 47.

When the manual key is released after a few seconds, the changeover switch 47a switches over the high pressure means 48 and thus extinguishes the ignition spark. At the same time, this switch resumes the power supply to the energy regulator 49 and the control valve 50 of the cooker burner 1 which was previously switched conductive is opened. Pilot burner 11 of this cooking device burner 1
If the corresponding thermocouple at 0 is sufficiently heated, the assigned gas safety switch 46 remains open since the thermocouple circuit is closed by switch 49a, and the valve plate of the gas safety switch therefore It is held in the "open" position by the coil. In contrast, a pilot burner 110 of a cooker that is not energized has its thermocouple circuit connected to the switch 49 in the cooker burner's energy regulator 49.
Since the fire is cut off by a, the fire is extinguished when the manual key 47 is released.

Pilot burner 11 of the cooking device lit
0 will continue to operate regardless of the assigned energy regulator 49 and bar temperature limit switch until the cooking appliance is fired by the energy regulator 49. In this case, both the control valve 50 and the current coil of the gas safety switch are de-energized and both valves are closed.

Engaged cooking device pilot burner 110
If the fire goes out for any reason during operation, the gas safety switch closes after the safety interval has expired, blocking the supply of gas to both the pilot burner 110 as well as the cooker burner 1. The cooking appliance can then be reactivated only as described above by activating the manual key 47.

If one of the two cooker burners 1 has already been lit and the second is to be lit, the above lighting operation is similarly repeated. The already lit cooker burner 1 is thereby extinguished for the duration of the ignition operation, whereas its pilot burner remains lit. When manual key 47 is released, the second pilot burner also remains lit and both cooker burners are lit by their respective pilot flames.

The principles presented for the prior example can be adopted in all gas installations with multiple burner positions.

As is apparent from the foregoing specification, the invention may be embodied in various modifications and variations that may differ in detail from those set forth in the foregoing specification and description.
It is to be understood that Applicant intends to embody all such variations as are reasonably within the scope of the patents covered herein and within the scope of Applicant's contribution to the art.

[Brief explanation of drawings]

1 is a top plan view of the burner device with the cooking device removed; FIG. 2 is a side sectional view of the burner device with the cooking panel in place; and FIG. 3 is a side sectional view of an alternative embodiment of the burner device. , Figure 4 is a partial side sectional view of the burner device showing the labyrinth seal, Figure 4a.
Figure 5 is a partial side sectional view of a burner device with labyrinth seal with air gap; Figure 5 is a partial side sectional view showing the easily operated lever for removing the burner from the cooking panel; Figure 5a is shown in Figure 5. 6 is a side sectional view of an alternative embodiment of the burner arrangement; FIG. 7 is a side sectional view of an alternative embodiment of the burner arrangement; and FIG. 8 is an alternative embodiment of the burner arrangement using an atmospheric burner. FIG. 9 is a side sectional view of the pilot burner, FIG. 9a is a plan view of the pilot burner shown in FIG. 9, FIG. 10 is a plan view of the burner device with the cooking plate removed, and FIG. 11 is a side sectional view of the pilot burner. side sectional view of an alternative embodiment of the burner device;
FIG. 12 is a side sectional view of an alternative embodiment of the burner device, and FIG. 13 is a schematic diagram showing the control device and burner device. 1...Cooking device burner, 2...Combustion chamber, 5...
...Exhaust gas duct, 6...Injection plate, 10...Pilot burner, 11...Ignition and monitoring means,
7... Heating area, 8... Exhaust stack, 12... Recessed part,
9...Structural parts, 13...Temperature limiter, 17...
Sheet, 15a... Fireproof part, 14... Cooking plate, 4... Gas mixing means, 32... Squeezing plate, 3
0...Gas nozzle, 16...Sealing ring, 9a...
Upper part, 9b...Lower part, 9c...Sheet metal gutter,
24... Burner, 101... Ignition electrode, 111
...Monitoring thermocouple.

Claims (1)

[Scope of Claims] 1. A continuous cooking plate made of glass-ceramic or similar material, a plurality of separate gas-fired burner devices, and an exhaust gas duct for combustion gases, the cooking plate forming a cooking surface. ,
A cooking panel, wherein the burner device and the exhaust gas duct are respectively arranged under the cooking plate to form a common heating area with a plurality of separate cooking areas on the cooking surface, A single structural part of low-density insulation material is provided, shaped so as to delimit the exhaust gas ducts and surround them in the area outside the areas where heat is supplied to the cooking area and the heating area. Featured cooking panel. 2 The burner device has a combustion chamber as its main components,
A cooking panel according to claim 1, characterized in that it includes a gas mixing chamber and a gas/air mixing chamber and is shaped such that a single component surrounds and defines these major components. 3. A cooking panel according to claim 2, characterized in that the gas mixing chamber consists of a metal container, and the structural part has a recess of a predetermined shape for receiving and arranging said container. 4. According to claim 2 or 3, each of the burner devices has an injection plate separating the combustion chamber from the gas mixing chamber, said injection plate being mounted in a structural part. Cooking panel listed. 5. The cooking panel according to any one of claims 1 to 4, wherein the structural component has a recess for receiving and holding an auxiliary device. 6. The cooking panel according to claim 5, wherein the auxiliary device includes an electrical operation monitoring device. 7. Claim 6, characterized in that it comprises an electrical lead to the electrical operation monitoring device, said electrical lead consisting of a solid electrical wire embedded in the structural part and also serving as an auxiliary element of the structural part. Cooking panel listed. 8. A device according to any one of claims 1 to 7, characterized in that a single ignition device and ignition monitoring device is arranged in a structural part and is used commonly for all burner devices. cooking panel. 9. The cooking panel according to any one of claims 1 to 8, characterized in that the structural part has all the components of the burner device above a predetermined plane parallel to the cooking surface. 10. The cooking panel according to any one of claims 1 to 9, wherein the structural component is an integrally molded product. 11. Claims 1 to 1, characterized in that the structural parts are composed of an upper part and a lower part, both of which are made of a low-density heat insulating material, and which are hermetically joined to each other in a plane parallel to the cooking surface. The cooking panel according to any of Item 9. 12. A cooking panel according to claim 11, characterized in that the airtight connection consists of a labyrinth seal that is effective when both parts are mechanically pressed together. 13. The cooking panel according to claim 12, wherein the labyrinth seal includes a chamber portion. 14. A cooking panel according to claim 12 or 13, characterized in that the labyrinth seal also seals a combustion chamber forming part of a burner device. 15. Claim 1, characterized in that the spray plate is supported between the upper part and the lower part.
The cooking panel described in Section 1. 16 The exhaust gas duct is covered with a cover plate,
The structural component together with the cover plate is pressed against the cooking plate via an auxiliary frame, and the auxiliary frame is supported on a fastening member rotatably attached to the frame of the cooking plate by rivets. A cooking panel according to any one of claims 1 to 15. 17 The exhaust gas duct is covered with a cover plate,
The structural part is pressed against the cooking plate together with the cover plate through the auxiliary frame, and the auxiliary frame is supported on a spring element, which springs out after the auxiliary frame is pressed, and presses the auxiliary frame against the structural part. With,
The cooking panel according to any one of claims 1 to 15, characterized in that it is fastened to a cooking plate.