Infrared temperature sensor for a cooking device

Details Infrared temperature sensor for a cooking device Infrared temperature sensor for a cooking device

F - Mech Eng,Light,Heat,Weapons

24

C

F24C 7/02 (2006.01) H05B 1/02 (2006.01) H05B 6/80 (2006.01)

Patent

CA 2226858

A cooking device includes an infrared ray sensor (1) disposed to sense infrared radiation from food obliquely from the above. Infrared ray sensor (1) includes a printed circuit board (36), a light receiving portion (3), a photointerrupter (10), and a chopper (8). The chopper includes a horizontal vane portion (39) and a vertical vane portion (40). The chopper is disposed between the light receiving portion (13) of infrared ray sensor (1) and food (31) such that the vertical vane portion (40) passes between the light emitting device (29) and light receiving device (30) of photointerrupter (10) and that horizontal vane portion (39) passes between the light receiving portion (3) of infrared ray sensor (1) and food (31) when chopper (8) rotates. Thus, an improved microwave oven having a reduced occupied area which can be manufactured less costly can be provided.

Appareil de cuisson comportant un capteur infrarouge (1) situé dans l'appareil de manière à capter obliquement et par le haut les rayons infrarouges à partir des aliments. Le capteur infrarouge (1) est composé d'une carte de circuits imprimés (36), d'un récepteur de lumière (30), d'un interrupteur photo-électrique (10) et d'un découpeur (8). Ce dernier est doté de lames horizontales (39) et de lames verticales (40), et est situé entre le récepteur de lumière (30) du capteur infrarouge (1) et les aliments (31), de sorte que les lames verticales (40) passent entre la source lumineuse (29) et le récepteur de lumière (30) de l'interrupteur photo-électrique (10) et que les lames horizontales (39) passent entre le récepteur de lumière (30) du capteur infrarouge (1) et les aliments (31) lorsque le découpeur (8) tourne. Ce four à micro-ondes amélioré à surface occupée réduite peut donc être fabriqué de façon plus économique.

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