Novel fan coil photoelectric centralized controller

Abstract

The invention relates to a novel fan coil photoelectric centralized controller, which comprises a shell and a circuit board connected with a power supply, wherein the circuit board comprises a rectifying part, a switch part, a power supply and delay part, an amplification part and a relay work part. The controller adopts a principle of using a bridge pile as a main work device after the front endinput 220V AC signals of commercial electricity are received; carrying out full-wave rectification on the AC signals; inputting the AC signals into a photoelectric coupler; outputting weak current switch signals at the output end of the photoelectric coupler; and taking the signals as the input of a push-pull amplifier. The push-pull amplifier amplifies a weak switch signal current to an actuation current enough to reach a rear relay, and the output end of the relay is connected into a main machine of air-conditioning equipment. The aim of combining and concentrating multi-path switch signalsof a fan controller into one path of signals so as to control the main machine of the air-conditioning equipment is achieved. The working current of the relay is stable, delay time is moderate and concentrated, power supply voltage is stable, the front end input switch signal full-wave rectification zero-time is short, and input signal indicating lamps are not easy to damage.

Description

technical field [0001] The invention belongs to the field of control products of smart household electric appliances, and relates to an electric device capable of realizing multiple switches to simultaneously control the start or stop of a single electric device, specifically, a novel fan coil photoelectric centralized controller. Background technique [0002] With the development of science and technology and the improvement of living standards, people's living conditions have been greatly improved, and fan coil photoelectric centralized controllers are more and more widely used in residential quarters and even residents' homes. [0003] In a house equipped with central air conditioning, there are often multiple rooms that need to be equipped with fan coil units and fan controllers. When people want to adjust the temperature in the room, or to cool down or heat up, they can turn on the fan to blow through the fan controller and open the water pipe gate of the central air-co...

AI Technical Summary

Problems solved by technology

[0005] At present, there are many types of fan coil photoelectric centralized controllers on the market, such as the Chinese patent with the patent number ZL200620041266.1, which discloses a "central air-conditioning fan coil photoelectric centralized controller", although it has certain practical value , but its effect is still not ideal in practical application, mainly there are the following problems:

[0007] 2. Since the magnification of the amplifier is too small, the input switching signal is a half-wave signal, which makes the working current and supply voltage of the relay unstable.

In this way, the positive and negative voltages applied to both ends of the light-emitting diode change alternately, causing the input signal indicator to be easily damaged.

[0012] 6. The rated power of some resistors is not enough

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