220V power supply accidental detection energy-saving technology

Abstract

The invention relates to a general electric appliance energy-saving technique for changing the monitor (display) method of 220V alternative current power supply, comprising: serially connecting a buttons switch K (as graph 2) having a normal-open contactor into the serial circuit between the light emitting diode and the current limiting resistance of a monitor circuit (as graph 1) of general 22V alternative current power supply. At normal state, since the contactor of the button switch is normally open, the light emitting diode LED will not be turned on, and for detecting the communication state of a power supply, the button switch K can be pressed to close the contactor, the indicator lamp LED (light emitting diode) is turned on, to represent that the power supply is communicated. After detection, the button switch K is returned, the contactor automatically breaks, and the detection circuit quits working state. The detection on the working state of 220V power supply is changed from real-time detection to random detection, thereby mostly reducing useless work of monitor circuit and accelerating energy-saving effect. The general electric appliance energy-saving technique can prolong the service life of the components in the monitor circuit and reduce fault rate.

Description

technical field [0001] The utility model relates to a conventional electric appliance energy-saving technology which changes the monitoring (display) mode of a 220V AC power supply. Background technique [0002] The commonly used 220V AC power supply display (monitoring) is to use a light-emitting diode LED with a working voltage of 1.5-3V and a working current of 2-10mA in series with a current-limiting (or voltage dividing) resistor R of 2-10K, and then connect it in parallel with the main load circuit. The wiring principle constitutes a monitoring circuit. This monitoring mode is intuitively simple and easy to implement, and can monitor the whole process of main circuit power on and off in real time. However, according to theoretical calculations, the theoretical power of a conventional 220V power supply real-time monitoring circuit is 0.5-0.8W, and the annual power consumption is 4-5KWH in the normal-on state. Therefore, there is an obvious imbalance between the energy...

AI Technical Summary

Problems solved by technology

However, according to theoretical calculations, the theoretical power of a conventional 220V power supply real-time monitoring circuit is 0.5-0.8W, and in the normal state, the annual power consumption reaches 4-5KWH

Therefore, there is an obvious imbalance between the energy consumption of the monitoring circuit itself and the monitoring utility.

And because the circuit is widely used in conventional electrical appliances, it brings huge energy waste to the whole society.

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