Radiant heating element for a cooking area

Details Radiant heating element for a cooking area Radiant heating element for a cooking area

H - Electricity

05

B

H05B 1/02 (2006.01) H01H 37/04 (2006.01) H05B 3/74 (2006.01) H01H 37/34 (2006.01) H01H 37/54 (2006.01)

Patent

CA 2265783

In a radiant heating body for a cooking location, in particular in the case of a glass ceramic plate (4), an insulating bottom (2) with an insulating annular rim portion (3) is provided in a pot member (1). A heating element (6) is arranged in an air space (5) above the insulating bottom (2). A safety temperature limiter is provided on the pot member (1). In order to achieve a low degree of switching hysteresis and to avoid an expansion bar regulator, the safety temperature limiter is in the form of a bimetal switch component (8) having a housing (9) which is fixed to the pot member (1) and in which a bimetal element (11) is disposed at the side towards the air space (5). Provided at the annular rim portion (3) is an opening (20, 24) through which the bimetal element (11) is thermally coupled directly or indirectly to the air space (5).

L'invention concerne un élément chauffant à rayonnement pour une zone de cuisson, notamment une plaque en vitrocéramique (4), comportant, dans un élément cupuliforme (1), un fond isolant (2) avec un bord annulaire isolant (3). Un élément chauffant (6) est prévu dans un espace libre (5) au-dessus du fond isolant (2). Un limiteur de température de sécurité est prévu sur l'élément cupuliforme (1). Afin d'obtenir une faible hystérèse de commutation et d'éviter le recours à un régulateur à thermobarre, il est prévu d'utiliser un élément commutateur à bilame (8) comme limiteur de température de sécurité. Un élément à bilame (11) est logé du côté opposé à l'espace libre (5), dans le boîtier (9) fixé à l'élément cupuliforme (1), de l'élément commutateur à bilame. Une découpe (20, 24) est prévue sur le bord annulaire (3), à travers laquelle l'élément bilame (11) est directement ou indirectement couplé thermiquement à l'espace libre (5).

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