E.g.o. Elektro-geraetebau Gmbh

E.g.o. Elektro-gerate Blanc Und Fischer Gmbh & Co. Kg

E.g.o. Elektro Gerate Blanc U. Fischer

E.g.o. Elektro-geraerebau Gmbh

E.g.o. Elektro-Gerätebau Gmbh

Hans Mohr

Eugen Wilde

Martin Gross

Erich John

Ralf Stoll

Wilfried Schilling

Gerhard Goessler

Heinz Petri

Franz Bogdanski

Siegbert Berger

Werner Renz

Volker Brennenstuhl

Bernhard Belz

Ulrich Jenz

Juergen Schwackenhofer

A heating device for a cooking point in a hob has three independent and separate long heating elements which are arranged on a support of the heating device along concentric circles. The support has a central region around the center point, an outer region adjoining an outer edge, and an intermediate region between the central region and outer region. A rod-type thermostat engages over the heating device for the purpose of temperature detection. The first and the third heating element are connected to an energy supply over the rod-type thermostat. A second heating element is connected to an energy supply without interconnection of the rod-type thermostat, wherein the second heating element is arranged on the support in the central region, in the intermediate region and in the outer region.

Heating device and method for operating a heating device

A control is provided for switching on and off two heating devices of a hob forming a hotplate. In cyclic manner the continuous energy or power generation level can be adjusted by an energy control device. A temperature limiter monitors a maximum temperature via the first heating device, but not via the second heating device. The energy control device controls the first heating device directly or switches the same. The temperature limiter trips a power relay in order to switch the second heating device simultaneously with the first heating device.

Device for switching on and off several heating mechanisms of cooking equipment as well as cooking equipment with such a device

An appliance for a hotplate has two heating devices installed parallel to one another. With an energy control device and as a function of an angular position, either a first heating device is operated in controlled manner or a second heating device is connected thereto in fixed form. The power of the second heating device is defined so low that no temperature limiter for protecting a glass ceramic plate has to be provided in the control path of the second heating device. On connecting in the second heating device, the controlled power of the first heating device is lowered to an initial value by roughly the amount of the power of the second heating device. The total power results from the summated power of the two heating devices.

Appliance for switching on and off several heating devices of a cooker, as well as cooker having such an appliance

A radiant heater is provided, which is subdivided into three concentric areas and which can be mounted under a glass ceramic cooking area. It has a rod controller and the two innermost heating areas are jointly protected against excess temperatures by means of the rod controller. The outermost heating area has a low surface power of 2.5 W/cm, for example, and consequently does not have to be monitored by the rod regulator with regards to the danger of an excess temperature for a glass ceramic cooking area.

Heating device with two areas

According to an exemplary embodiment of the invention a radiant heater ( ) for a glass ceramic cooking area ( ) is created. The radiant heater comprises a carrier shell ( ) carrying a flat insulator ( ), on which is placed a heating means ( ). A thermal relay ( ) projects with its tube-like sensor ( ) into the central area of the radiant heater ( ) and the sensor can rest on an elevation ( ) of the insulator ( ). By means of a holder ( ) the sensor ( ) can be fixed to the carrier shell ( ). The holder does not project over the underside of the carrier shell ( ). In one embodiment the holder with barb-like ends reaches into an opening in the carrier shell and is fixed to locking edges of the carrier shell.

Radiant heater

Connecting conductors located within at least one heating field for heating conductors are configured so that they do not luminate in operation and are not bowed or shifted out of place by thermal loading. For this purpose the conductor is corrugated and also securely anchored at regular center-spacings, it having with respect to the heating resistor greater resistance cross-sections. This achieves for a very simple construction an optically advantageous glow pattern of the heater in every operating mode.

Heater

For producing an electric radiant heater a thin heating resistance material strip is placed upright on an insulator. It has foot portions, which are embedded in the heating conductor material. The foot portions are only connected by thin connecting webs to the heating area and are differently shaped and/or oriented to the corrugated heating conductor strip.

Electric radiant heater and method for its manufacture

In the manner of a tubular heater, a temperature sensor comprises a metallic tubular jacket with internal resistance wire coil embedded in insulating material and closing pieces having electrical connection members, so that a very simple, robust and high temperature-resistant temperature sensor with a measuring range up to e.g. approximately 750.degree. C. is obtained. The temperature sensor jacket can be earthed or grounded. For operating the temperature sensor there is appropriately a test current in the mA range in the case of a test voltage in the mV range, whose temperature-dependent changes are processed by means of an electronic amplifier.

Growing community of inventors

Sulzfeld, Germany

Hans Mohr