JP2012239289A5 - - Google Patents

Claims (6)

A rectifier circuit for rectifying commercial AC voltage;
A smoothing capacitor that smoothes the voltage rectified by the rectifier circuit to obtain a DC bus voltage;
An inverter unit for driving the compressor motor by converting the DC bus voltage into an AC voltage of an arbitrary frequency;
A transformer that generates a control power supply voltage from the DC bus voltage;
A control unit that operates by being supplied with the control power supply voltage, and that drives and controls the inverter unit based on an external command;
With
The air conditioner is characterized in that the controller continuously performs compressor motor restraint energization that gives a low torque that does not allow the compressor motor to operate based on an external compressor motor restraint energization command. Control device. A rectifier circuit for rectifying commercial AC voltage;
A smoothing capacitor that smoothes the voltage rectified by the rectifier circuit to obtain a DC bus voltage;
A fan motor driving inverter unit for converting the DC bus voltage to an AC voltage of an arbitrary frequency to drive the fan motor;
A transformer that generates a control power supply voltage from the DC bus voltage;
A control unit that operates by being supplied with the control power supply voltage, and that drives and controls the fan motor driving inverter unit based on an external command;
With
The air conditioner control device, wherein the control unit continuously performs fan motor restraint energization that gives a low torque that does not allow the fan motor to operate based on an external fan motor restraint energization command. . A rectifier circuit for rectifying commercial AC voltage;
A smoothing capacitor that smoothes the voltage rectified by the rectifier circuit to obtain a DC bus voltage;
A transformer for generating a first control power voltage and a second control power voltage from the DC bus voltage;
An electronically controlled expansion valve driver that operates by supplying the first control power supply voltage and drives the electronically controlled expansion valve;
A control unit that operates by being supplied with the second control power supply voltage, and that drives and controls the electronically controlled expansion valve drive unit based on an external command;
With
The said control part is a control apparatus of the air conditioner characterized by continuing operating the said electronically controlled expansion valve based on the expansion valve operation command from the outside.   The control device for an air conditioner according to claim 1, wherein the compressor motor restraint energization command is input from the outside in accordance with the supply stop of the commercial AC voltage.   The control device for an air conditioner according to claim 2, wherein the fan motor restraining energization command is input from the outside in accordance with the supply stop of the commercial AC voltage.   The said expansion valve operation command is input from the outside according to the supply stop of the said commercial alternating voltage, The control apparatus of the air conditioner of Claim 3 characterized by the above-mentioned.