Patent ID: 11971180
Assignee: HISENSE (GUANGDONG) AIR CONDITIONER CO., LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 6:
7. The outdoor unit of the air conditioner according to claim 6, wherein the level signal supply circuit includes a comparator circuit, a triode circuit, and a voltage divider circuit;
wherein
the comparator circuit includes a positive input terminal, a negative input terminal, and an output terminal; the positive input terminal is connected to the voltage divider circuit, the negative input terminal is connected to the signal line, and the output terminal is connected to the triode circuit; the comparator circuit is configured to output a level signal at the output terminal in response to the power supply control signal transmitted by the indoor-unit communication circuit to the negative input terminal;
the triode circuit includes a base electrode, a collector electrode, and an emitter electrode; the base electrode is connected to the output terminal of the comparator circuit, the collector electrode is connected to a coil of the switch-type relay, and the emitter electrode is connected to the normally closed contact of the normally closed changeover-type relay; the triode circuit is configured to turn on the collector electrode and the emitter electrode in response to the level signal output from the output terminal of the comparator circuit, so as to turn on a loop for supplying power to the switch-type relay.