Central vacuum cleaning system control subsystems

A - Human Necessities – 47 – L

Patent

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Details

A47L 5/38 (2006.01) A47L 9/28 (2006.01)

Patent

CA 2566020

A central vacuum cleaning system control subsystem for use in a central vacuum cleaning system having a motor includes a central vacuum unit control module with a receiver for wirelessly receiving command signals, and a power stage for controlling the motor in accordance with command signals received through the receiver. The control module is stable in high ambient temperature. Current flowing to the motor is sensed, and motor overcurrent and undercurrent conditions are determined. The control module determines when the motor is in an overcurrent condition. Power stage has a triac for controlling power to the motor. The control module also has a microprocessor that compares the current sensed against a normal operating current to determine overcurrent condition. Power to motor ceases when overcurrent condition exists. A generator is powered by air flow in a cleaning system for production of electrical energy.

L'invention porte sur le sous-système de commande d'un système central de nettoyage par aspiration motorisé comportant un module de commande muni d'un récepteur de signaux sans fil et d'un régulateur de la puissance du moteur, en fonction d'instructions transmises au récepteur. Le module de commande reste stable dans des températures ambiantes élevées. Le courant traversant le moteur est détecté et on détermine les conditions de surintensité ou de sous-intensité. Le module de commande détermine quand le moteur est dans des conditions de surintensité, et le régulateur de puissance comporte un triac régulant le courant d'alimentation du moteur. Le module de commande comporte également un microprocesseur comparant le courant détecté au courant de fonctionnement normal pour détecter les conditions de surintensité. L'alimentation du moteur cesse en cas de surintensité. L'invention porte également sur un générateur d'énergie électrique commandant le flux d'air d'un système de nettoyage.

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