Electric control assembly and air conditioner

An air conditioner comprising:

• an electric control assembly comprising:
• an electric control board provided with at least two reference grounds;
• a fan driving circuit and a compressor driving circuit both provided on the electric control board, wherein a ground end of the fan driving circuit and a ground end of the compressor driving circuit are connected with the at least two reference grounds of the electric control board in one-to-one correspondence;
• and
• a switch isolation driving circuit, wherein a first input end of the switch isolation driving circuit is connected with a control end of the compressor driving circuit, and a first output end of the switch isolation driving circuit is connected with a controlled end of the fan driving circuit, a second input end of the switch isolation driving circuit is connected with a control end of the fan driving circuit, a second output end of the switch isolation driving circuit is connected with a feedback end of the compressor driving circuit, the switch isolation driving circuit comprises a first transistor, and a base of the first transistor is connected with the first or second input end of the switch isolation driving circuit;
• wherein the fan driving circuit and the compressor driving circuit perform signal interaction through the switch isolation driving circuit.