Safety control system of intelligent air conditioner

Abstract

The invention discloses a safety control system of an intelligent air conditioner. The safety control system comprises an indoor unit and an outdoor unit. The indoor unit is provided with an indoor main control board. The outdoor unit is provided with an outdoor main control board and a variable frequency board. The variable frequency board is provided with an IGBT module driving unit and a communication unit of the outdoor main control board. The outdoor main control board comprises a power circuit connected with an electric supply. The power circuit comprises a bridge rectifier circuit composed of a triode and a diode, a single-chip microcomputer, a capacitance program control voltage reducing circuit and a switch circuit. The switch circuit comprises two sets of switches, wherein the first set of switches are connected with the output end of the bridge rectifier circuit, the second sets of switches are connected with the output end of a capacitor C2 and the output end of the triode Q4, and the two sets of program control synchronous switches are not closed at the same time. The safety control system improves the power factor of the electric supply and saves more electric energy.

Description

technical field [0001] The invention relates to the technical field of air conditioners, and more specifically, relates to a safety control system of an intelligent air conditioner. Background technique [0002] The earth environment on which we live is gradually becoming scarce in natural resources, while the rapid development of economic activities has led to an increasing demand for energy. How to balance the use of energy, economic development and ecological environment protection has become a major problem for all mankind. Solving energy recycling, saving energy and improving energy utilization is a problem that every industry must face. The frequency conversion board is installed in the inverter air conditioner, which can adjust the running speed of the air conditioner compressor at any time, so as to achieve a reasonable use of energy; because its compressor will not be turned on frequently, it will keep the compressor in a stable working state, which can make the ove...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a safety control system for an intelligent air conditioner in view of the problem of reducing the power factor of the current safety isolation transformer, which cancels the safety isolation transformer, adopts a capacitor for step-down, and a bridge switch circuit for Safety isolation makes the use of inverter air conditioners safer to overcome the deficiencies of existing technologies

Images