The invention discloses a teaching instrument for an alternating-current variable-frequency multi-unit air conditioner integrated
control system. The teaching instrument comprises an air conditioner host, an
electrical control system and a teaching instrument board, wherein the
electrical control system comprises an
electrical control component, a sensor, an outdoor unit
integrated circuit board,an indoor unit
integrated circuit board and an executing mechanism which is driven by the outdoor unit
integrated circuit board and the indoor unit integrated circuit board; the electrical
control system also comprises a
lightning protection module and a
frequency conversion module; the teaching instrument board comprises a circuit principle board and an electrical control mechanism board; a
schematic circuit diagram of the air conditioner host is printed on the circuit principle board; an electrical
control system wiring diagram is printed and the electrical control component, the
lightning protection module, the
frequency conversion module, the outdoor unit integrated circuit board and the indoor integrated circuit board are arranged on the front surface of the electrical control mechanism board; and a wire is connected on the back face of the electrical control mechanism board according to the electrical control
system wiring diagram, so that the outdoor unit integrated circuit board and the indoor integrated circuit board on the electrical control mechanism board are electrically connected with the executing mechanism. An experimental method provided by the invention has an intuitive principle and rich content, and is particularly suitable for experimental teaching of the alternating-current variable-frequency multi-unit air conditioner integrated control system for professional students of
refrigeration,
electricity, household appliances and the like.