摘要:
A hob comprising a plurality of radiant heating devices, each of which is further comprised of a support and a heat conductor mounted thereon. An elongate and tubular temperature sensor having a temperature sensitive element in a glass envelope extends along the support and is embedded therein to such a degree so as to project only slightly upwards. Ends of the temperature sensor with connections extend to the edge of the support or even project beyond.
摘要:
A hob comprising a plurality of radiant heating devices, each of which is further comprised of a support and a heat conductor mounted thereon. An elongate and tubular temperature sensor having a temperature sensitive element in a glass envelope extends along the support and is embedded therein to such a degree so as to project only slightly upwards. Ends of the temperature sensor with connections extend to the edge of the support or even project beyond.
摘要:
A control device for an electrical heating device for a cooking field with a cooking field plate comprises an electro-mechanical switching device for adjusting a power of said heating device with different power levels and comprises two different heating element. The switching device is configured so that starting from a zero-position and rotating in a first rotation direction, a power level for a first heating element is adjusted in a cooking-mode. Rotation in the other direction activates a second heating element in a warm-keeping mode with significantly lower power. A relay is closed by a thermomechanical temperature sensing device below a defined switching temperature of 60° C. to 100° C. and opened above the switching temperature. When closed, the relay connects the two heating elements to an operating voltage for common operation. When opened, the first heating element is switched off for exclusive operation of the second heating element.
摘要:
Heating resistors and/or series resistors (10) are curved in flat corrugation manner from flat band and are so pressed into the bottom (7) of an insulation (3), that they are only prevented by friction from rising from the bottom (7). The resistor (10) has non-offset, uninterrupted, through-edge faces (14, 15). Thus, in the case of a very simple construction, a surface-specific, high power density can be obtained.
摘要:
The rim of an electric radiant heater is formed by a multilayer body (13). It can have the cross-sectional shape of a U, whose interior is filled with a good insulating material. In the interior (23) is placed a sensor coil (23) for a pot detection system, where it is well shielded against heat and mechanical influences.
摘要:
A radiant heating element for heating a glass ceramic plate carries on a circular insulating support heating elements in the form of wire coils fixed thereto, which are arranged in the form of two parallel spiral paths. Two separately switchable heating conductors are successively arranged in one spiral path, while the third heating conductor is positioned alone in the other spiral path. The heating conductors have different power levels and can be switched to different power stages by a seven-timing switch.
摘要:
An electrical heating device has an integrally manufactured support made from insulating material. Depressed paths for introducing a heating element are provided. A klixon functioning as a thermally actuated switch is inserted from above into an opening in the central area of the support and its electrical terminals project over the bottom side and are bent round for mechanical fixing.
摘要:
A shaped thermal insulation body comprises inorganic material. The shaped body has the following, weight-related composition: approx. 20 wt. % inorganic filling material: approx. 40 wt. % opacifier; approx. 10 wt. % fibrous material; and approx. 15 wt. % hardening agent as well as approx. 15 wt. % water. The shaped body only contains a small amount of fumed silica with a comparatively small BET surface. Water glass is excluded during its manufacture. It can be used as a spacer for radiant heaters.
摘要:
A heat insulating molded body made of inorganic material and inorganic reinforcement fibers is disclosed, as well as a process for producing the same and its use. The molded body is characterized by the following composition: (a) 30-70 wt. % blown vermiculite; (b) 15-40 wt. % inorganic binder; (c) 0-20 wt. % infrared opacifier; (d) 15-50 wt. % microporous material; (e) 0.5-8 wt. % reinforcement fibers which contain maximum 2 wt. % B2O3 and at most 2% alkalimetal oxide, based on the weight of the reinforcing fibers.
摘要:
For producing a radiant heater it is proposed to produce a flat disk-shaped tablet as a separate thermally insulating molding outside of the carrier dish of the radiant heater. On this, heating conductors in the form of corrugated strips provided with fastening feet are pressed into the flat top surface of the tablet. In conclusion the radiant heater is fitted by insertion of this prefabricated component.