Air conditioner, and method of replacing functional component

1. An air conditioner comprising:

a power source that supplies AC voltage; and

a wiring plug-in coupler that:

is connected to the power source,

is connected to a portion of the power source to which a first drain pump, actuated by the AC voltage in cooperation with the air conditioner, is connected,

supplies voltage to a second drain pump actuated by DC voltage in cooperation with the air conditioner, and

is connected with an input terminal of a converter that converts AC voltage to DC voltage and supplies the converted DC voltage to the second drain pump.

2. An air conditioner comprising:

a power source that supplies AC voltage;

a wiring plug-in coupler that:

is connected to the power source,

supplies voltage to a drain pump actuated by DC voltage in cooperation with the air conditioner, and

is connected with an input terminal of a converter that converts AC voltage to DC voltage and supplies the converted DC voltage to the drain pump; and

a controller that starts or stops supply of AC voltage to the wiring plug-in coupler by the power source in cooperation with the air conditioner.

3. The air conditioner according to claim 2 , further comprising:

an indoor unit including the drain pump, wherein

the controller starts or stops the supply of AC voltage to the wiring plug-in coupler by the power source in cooperation with control of the indoor unit.

4. The air conditioner according to claim 3 , wherein the drain pump discharges drain water generated in the indoor unit.

5. The air conditioner according to claim 4 , wherein the drain pump has rated voltage of 5 V.

6. The air conditioner according to claim 3 , wherein

the indoor unit includes a fan, and

the controller starts or stops the supply of AC voltage to the wiring plug-in coupler by the power source in cooperation with control of the fan.

7. The air conditioner according to claim 1 , wherein the wiring plug-in coupler is connected with the converter including an output terminal according to a USB standard for output of DC voltage.

8. A method of replacing a drain pump, comprising:

replacing a first drain pump with a wiring plug-in coupler, wherein the first drain pump is connected to a power source included in an air conditioner and is actuated by AC voltage in cooperation with the air conditioner, and the wiring plug-in coupler receives AC voltage from the power source;

connecting, to the wiring plug-in coupler, an input terminal of a converter that converts AC voltage to DC voltage; and

connecting, to an output terminal of the converter, a second drain pump actuated by DC voltage in cooperation with the air conditioner.

9. The method according to claim 8 , wherein the replacing includes detaching the first drain pump and connecting the wiring plug-in coupler to a portion of the power source from which the first drain pump has been detached.

10. The air conditioner according to claim 4 , wherein

the indoor unit includes a fan, and

the controller starts or stops the supply of AC voltage to the wiring plug-in coupler by the power source in cooperation with control of the fan.

11. The air conditioner according to claim 5 , wherein

the indoor unit includes a fan, and

the controller starts or stops the supply of AC voltage to the wiring plug-in coupler by the power source in cooperation with control of the fan.

12. The air conditioner according to claim 2 , wherein the wiring plug-in coupler is connected with the converter including an output terminal according to a USB standard for output of DC voltage.

13. The air conditioner according to claim 3 , wherein the wiring plug-in coupler is connected with the converter including an output terminal according to a USB standard for output of DC voltage.

14. The air conditioner according to claim 4 , wherein the wiring plug-in coupler is connected with the converter including an output terminal according to a USB standard for output of DC voltage.

15. The air conditioner according to claim 5 , wherein the wiring plug-in coupler is connected with the converter including an output terminal according to a USB standard for output of DC voltage.

16. The air conditioner according to claim 6 , wherein the wiring plug-in coupler is connected with the converter including an output terminal according to a USB standard for output of DC voltage.