Misplug prevention device, air conditioning unit and misplug prevention control method

The invention provides a misplug-proof device, an air conditioning unit and a misplug-proof control method, and the misplug-proof device specifically comprises a wiring module which is provided with an indicator corresponding to each jack; the cable joint is internally provided with a sound wave vibration module and can send a sound wave signal corresponding to the cable; and the control module is used for comparing the sound wave signal detected by the sound wave detector with each pre-stored sound wave signal to determine the socket corresponding to the pre-stored sound wave signal, and controlling the indicator of the socket to prompt. According to the invention, the correct plugging position of each cable can be rapidly and accurately determined through a sound wave detection mode and the sound wave signals corresponding to different cables sent by the cable joints. The efficiency and accuracy of wiring work are improved, and the circuit fault risk caused by manual operation errors is reduced. The wiring