Outdoor unit of air conditioner and its control method
AssigneeDaikin Industries, Ltd.
InventorsSatoshi Yagi, Hisashi Sumida, Hirotaka Saruwatari, Hiroyuki Matsuura, Mario Hayashi
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Abstract
An outdoor unit includes an outdoor unit control circuit, an inverter substrate and a compressor. Periodic communication showing the operating condition of the inverter substrate is set from the inverter substrate to the outdoor unit control circuit. Thus, when the communication is performed normally, the drive of the compressor is changed to a power saving process according to the necessity of the power consumption and the operating condition of the inverter substrate. When the communication is defective, the power-on reset is done to the inverter substrate.
Claims20
A control method of an outdoor unit in an air conditioner, said outdoor unit comprising:
- an actuator;
- a drive circuit for conducting drive said actuator;
- and
- a control circuit for controlling said drive circuit, wherein
- communication showing the operating condition of said drive circuit is set from said drive circuit to said control circuit, said method comprising:
- resetting an operation of said drive circuit when it is determined that said communication is defective,
- wherein
- said communication is tried after said resetting, and only when the communication is performed normally, said drive is started.
A control method of an outdoor unit in an air conditioner, said outdoor unit comprising:
- an actuator;
- a drive circuit for conducting drive said actuator;
- and
- a control circuit for controlling said drive circuit, wherein
- communication showing the operating condition of said drive circuit is set from said drive circuit to said control circuit, said method comprising:
- resetting an operation of said drive circuit when it is determined that said communication is defective,
- wherein
- said drive circuit comprises:
- an inverter circuit for supplying an operation power supply to said actuator;
- and
- an actuator control circuit communicating with said control circuit to control the operation of said actuator through said inverter circuit, wherein
- power supply to said drive circuit is stopped by stopping power supply to said actuator control circuit, while power supply to said inverter circuit is continued.
A control method of an outdoor unit in an air conditioner, said outdoor unit comprising:
- an actuator;
- a drive circuit for conducting drive said actuator;
- and
- a control circuit for controlling said drive circuit, wherein
- communication showing the operating condition of said drive circuit is set from said drive circuit to said control circuit, said method comprising:
- resetting an operation of said drive circuit when it is determined that said communication is defective, wherein
- when said control circuit does not receive a normal signal in a predetermined period after received a defective signal, it is determined that said communication is defective,
- when said communication is not performed or their contents are defective, in all said outdoor units, an indoor unit constituting said air conditioner is stopped with said outdoor units, and
- said drive circuit comprises:
- an inverter circuit for supplying an operation power supply to said actuator;
- and
- an actuator control circuit communicating with said control circuit to control the operation of said actuator through said inverter circuit, wherein
- power supply to said drive circuit is stopped by stopping power supply to said actuator control circuit while power supply to said inverter circuit is continued.
Dependencies are inferred from the claim text.