Household appliance with electronic program control

Details Household appliance with electronic program control Household appliance with electronic program control

G - Physics

05

B

G05B 9/02 (2006.01) A47L 15/46 (2006.01) D06F 33/02 (2006.01) G05B 19/042 (2006.01)

Patent

CA 2192265

A household appliance, in particular a washing machine or a dishwasher, is operated by an electronic program control (6). An electric load (5) in the appliance is switched on and/or off via a semiconductor component or a relay. If this semiconductor component or the relay fails, e.g. by short circuit or by contact sticking, a safety device is activated after the recognition of the failure of the component. The safety device disconnects the load (5) from its voltage supply. In a preferred design, an intentional water overflow takes place after the failure of the component, which results in the actuation of the water safety device. Thereupon the water safety device switches off the electronic program control (6) and thus also the load (5).

n appareil électroménager, en particulier une machine à laver le linge ou un lave-vaisselle, est commandé par un programme électronique (6). Une charge électrique dans l'appareil est mise en circuit ou hors circuit via un composant à semi-conducteur ou un relais. Si ce composant à semi-conducteur ou ce relais vient à flancher, p. ex., en cas de court circuit ou de collage des contacts, un dispositif de sécurité s'active aussitôt, coupant la tension d'alimentation de la charge électrique (5). Selon une variante privilégiée, la défaillance du composant à semi-conducteur ou du relais provoque un débordement d'eau intentionnel, lequel met en action le dispositif de sécurité. Le dispositif de sécurité ainsi actionné par le débordement d'eau met hors circuit la commande par programme électronique (6) et, par conséquent, la charge électrique (5).

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