JPH08219528A - Air-conditioner - Google Patents

Abstract

PURPOSE: To obtain an air conditioner preventing the impairment of comfortableness due to reduction of the amount of humidification of a natural evaporation type humidifier. CONSTITUTION: A timer 21 which outputs a signal when a prescribed time passes from the stop of a blower 15 consequent upon the stop of operation of the main body of an indoor machine in a heating operation mode wherein a humidifier 14 is operated, is provided. A humidifier controller 27 of an indoor machine controller 20 stops electrification of a feed water valve 18 to stop spray of water on a water-absorbing element, after it detects the output of the signal of the timer 21 at the time when the operation of the main body of the indoor machine in the heating operation mode is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling an air conditioner incorporating a humidifier.

[0002]

2. Description of the Related Art As a conventional air conditioner having a humidifier, there is one disclosed in JP-A-62-172145.

An air conditioner having the conventional humidifier will be described below with reference to the drawings.

FIG. 4 shows an electric circuit for operating a humidifier of a conventional air conditioner. Reference numeral 1 is a heating operation solenoid valve for switching a refrigerant circuit (not shown) to heating operation, and 2 is a humidified room to be conditioned. The humidifiers 3 and 3 are blower electric motors that circulate the air inside the air-conditioned room. Reference numeral 4 denotes a heating operation control switch in which the heating operation solenoid valves 1 are connected in series, and the heating operation solenoid valve 1 is operated by a switch (not shown) for turning the air conditioner into the heating operation. Reference numeral 5 denotes a blower operation control switch in which the blower motor 3 is connected in series, and the blower motor 3 is activated by a signal (not shown) for operating the blower of the air conditioner. Reference numeral 6 is a switch that operates in synchronization with the blower operation control switch 5.

The humidifier 2 is connected in parallel with the heating operation solenoid valve 1 and in series with the switch 6.

The operation of the air conditioner configured as above will be described below. First, during the heating operation, the heating operation control switch 4 operates and the heating operation solenoid valve 1 is energized to perform the heating operation. Further, the blower operation control switch 5 which is operated by the blow operation signal and becomes a closed circuit operates, the blower electric motor 3 is energized, and the blower operation is performed to heat the air-conditioned room. Further, the humidifier 2 connected in parallel with the heating operation solenoid valve 1 is connected in series with the switch 6 that operates in synchronization with the blower operation control switch 5 to form a closed circuit. The humidifying operation is performed only when the control switch 4 and the switch 6 are closed circuits at the same time.

As described above, the operation of the humidifier 2 is controlled in synchronization with the heating operation and in conjunction with the blower.

[0008]

However, in the above conventional structure, in the case of the natural evaporation type humidifier in which the humidifier 2 is controlled by supplying water to the water absorbing element, since the humidification is performed by natural evaporation, the water absorbing element is used. However, there is a problem in that the impurities contained in the humidification water are concentrated and the amount of humidification is reduced.

An object of the present invention is to provide an air conditioner in which the water absorbing element is regularly cleaned so that the amount of humidification does not decrease.

[0010]

In order to achieve the above object, the air conditioner of the present invention has a heat exchanger, a blower,
An indoor unit main body including a natural evaporation type humidifier that supplies humidifying water from a water sprinkler to a water absorbing element via a water supply valve to spontaneously evaporate from the water absorbing element, and an indoor unit controller that controls the indoor unit main body. And a timer that outputs a signal when a predetermined time has elapsed from the stop of the blower due to the operation stop of the indoor unit main body in an operation mode for operating the humidifier, and the indoor unit controller operates the humidifier. When the operation of the indoor unit main body in the operation mode to be stopped is detected, the water supply valve is closed after detecting that the timer has output the signal, and water spray to the water absorbing element is stopped.

[0011]

In the air conditioner of the present invention, when the humidifying operation is stopped, first, the blower is stopped, and after a lapse of a predetermined time after the blower is stopped, the water supply valve is closed and the water absorbing element of the humidifier is closed. Watering stops.

Therefore, the water sprinkled on the water absorbing element of the humidifier after the blower is stopped is hardly evaporated because there is no air blow, flows on the surface of the water absorbing element, and impurities adhering to the surface of the water absorbing element are removed. It is possible to prevent the amount of humidification from decreasing.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air conditioner according to the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of an embodiment of the air conditioner according to the present invention, FIG. 2 is a block diagram showing the operation of the air conditioner of the same embodiment, and FIG. 3 is of the air conditioner of the same embodiment. It is a flow chart which shows operation.

In FIG. 1, reference numeral 11 denotes an indoor unit main body, which is provided with a suction temperature detector 12, a heat exchanger 13, a humidifier 14, and a blower 15 in this order in order to detect a suction air temperature in an air passage. . The humidifier 14 has a water absorbing element 16, a sprinkler 17, and a water supply valve 18, and when the humidifier 14 operates, the water supply valve 1
8 is energized to open the humidifying water from the sprinkler 17 to the water absorbing element 1
6 is supplied with water, and is naturally evaporated by the air passing through the water absorbing element 16 to be humidified. An indoor unit controller 19 includes an indoor unit controller 20 and a timer 21 inside. Reference numeral 22 denotes an operating device for operating the indoor unit body 11, which includes an operation start / stop switch 23, a mode switch 24 for switching between cooling and heating modes, and a room temperature setting device 2 for setting the room temperature.
Have five.

In FIG. 2, the indoor unit control device 19 includes
The indoor unit controller 20 and the timer 21 are provided. The indoor unit controller 20 includes a blower controller 26 for controlling the operation of the blower 15 according to signals from the operation start / stop switch 23 and the mode switch 24, and the operation start / stop. A humidifier controller 27 that controls the operation of the humidifier 14 based on signals from the switch 23, the mode switch 24, the blower controller 26, and the timer 21.
An outdoor unit controller 28 for controlling the operation of the outdoor unit 29 is built in according to signals from the operation start / stop switch 23, the mode switch 24, the room temperature setting device 25, and the suction temperature detector 12.

The operation of the air conditioner configured as described above will be described below with reference to the flowchart of FIG.

When the operation start / stop switch 23 starts the operation, the indoor unit controller 20 starts the operation in the cooling / heating mode determined by the mode switch 24 (step 1). In the heating mode, the blower controller 26 And the humidifier controller 27
By energizing the blower 15 and the water supply valve 18, the blower 15 and the humidifier 14 are operated (step 2). Next, if the suction temperature T1 detected by the suction temperature detector 12 has not reached the set room temperature T0 of the room temperature setting unit 25 (T0> T1), the outdoor unit controller 28 sets the outdoor unit 29.
Are operated (step 3).

When the operation is stopped by the operation start / stop switch 23, the outdoor unit controller 28 and the blower controller 26 stop the outdoor unit 29 and the blower 15, and the timer 21
Starts timing operation. Then, when a predetermined time elapses after the blower 15 is stopped, the timer 21 causes the humidifier controller 2
7, the humidifier controller 27 stops the energization of the water supply valve 18 by the signal from the timer 21, and the humidifier 14
Is stopped (step 4).

In the cooling mode, the blower controller 26 operates the blower 15 (step 5). Next, if the suction temperature T1 detected by the suction temperature detector 12 has not reached the set room temperature T0 of the room temperature setting device 25 (T0 <T1), the outdoor unit controller 28 operates the outdoor unit 29. (Step 6).

When the operation is stopped by the operation start / stop switch 23, the outdoor unit controller 28 and the blower controller 26 stop the outdoor unit 29 and the blower 15 (step 7).

As described above, in the air conditioner of this embodiment, the timer 21 that outputs a signal when a predetermined time has elapsed from the stop of the blower 15 due to the stop of the operation of the indoor unit main body in the heating operation mode for operating the humidifier 14 The humidifier controller 27 of the indoor unit controller 20 stops energizing the water supply valve 18 after detecting that the timer 21 has output a signal when stopping the operation of the indoor unit main body in the heating operation mode. Therefore, the water sprinkled on the water absorption element 16 is stopped, so that the water sprinkled on the water absorption element 16 of the humidifier 14 after the blower 15 is stopped hardly evaporates because there is no air blow. Impurities adhering to the surface of the water absorbing element 16 flowing on the surface are removed, and a decrease in the amount of humidification can be prevented.

[0023]

As described above, the air conditioner of the present invention is
In the operation mode to operate the humidifier, the indoor unit controller is equipped with a timer that outputs a signal when a predetermined time has elapsed since the blower stopped due to the operation of the indoor unit being stopped. When the operation of is stopped, it is configured to stop the water supply valve and stop watering to the water absorbing element after detecting that the timer has output a signal, so water is sprayed on the water absorbing element of the humidifier after the blower is stopped. The water hardly evaporates because there is no air flow, flows on the surface of the water absorbing element, and the impurities adhering to the surface of the water absorbing element are removed, so that the impurities are not concentrated in the water absorbing element and the amount of humidification does not decrease. There is.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a first embodiment of an air conditioner according to the present invention.

FIG. 2 is a block diagram showing the operation of the air conditioner of the same embodiment.

FIG. 3 is a flowchart showing the operation of the air conditioner of the same embodiment.

FIG. 4 is an electric circuit diagram of a conventional air conditioner.

[Explanation of symbols]

 11 Indoor Unit Main Body 13 Heat Exchanger 14 Humidifier 15 Blower 16 Water Absorption Element 17 Water Sprinkler 18 Water Supply Valve 20 Indoor Unit Controller 21 Timer

Claims (1)

[Claims] 1. An indoor unit main body comprising a heat exchanger, a blower, and a humidifier of a natural evaporation type which supplies humidifying water from a water sprinkler to a water absorbing element through a water supply valve to spontaneously evaporate from the water absorbing element. An indoor unit controller for controlling the indoor unit body,
And a timer that outputs a signal when a predetermined time has elapsed from the stop of the blower due to the operation stop of the indoor unit main body in an operation mode for operating the humidifier, and the indoor unit controller operates the humidifier. An air conditioner characterized in that when the operation of the indoor unit main body in the operation mode is stopped, the water supply valve is closed after detecting that the timer has output the signal, thereby stopping watering to the water absorbing element. Machine.