JP3021732B2 - Humidification control device for air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner provided with a humidifier, and more particularly to a humidifying operation countermeasure such as abnormal water supply to the humidifier or insufficient humidification.

[0002]

2. Description of the Related Art In general, some air conditioners are provided with a humidifier to humidify blown air to improve comfort. In an air conditioner equipped with this humidifier, for example, as disclosed in Japanese Utility Model Laid-Open No. 1-148539, water is supplied to a humidifying element via a water supply container, and the water is sucked into the humidifying element by a capillary phenomenon. The water that evaporates naturally and does not evaporate completely flows down from the humidifying element to the drain pan. Water is supplied to a water supply container of the humidifier by a water supply electromagnetic valve, and the water supply electromagnetic valve controls a water supply amount by a float switch in the water supply container.

[0003] By the way, as disclosed in Japanese Patent Application Laid-Open No. Sho 62-171741, an air conditioner provided with a humidifier has a compression function when the air intake temperature of the air conditioner exceeds a set value in a heating operation. In some cases, the humidifier is stopped in conjunction with the stop of the compressor to stop the water from flowing out of the air outlet of the air conditioner, thereby improving comfort.

[0004]

In the above-mentioned air conditioner, since only one water supply solenoid valve is controlled, if this water supply solenoid valve is not closed due to dust or the like, water overflows from the drain pan and wets the inside of the device. Therefore, there is a problem that electrical components may fail. Most of the supplied water will be wasted.

On the other hand, in the control of the humidifier, the humidity of the room air does not always reach the set value even when the intake air temperature exceeds the set value. Therefore, when the humidifier is started and stopped in conjunction with the compressor as in the air conditioner, there is a problem that sufficient humidification cannot be performed even when the humidity of the indoor air is extremely low, resulting in insufficient humidification. On the other hand, if the humidifier is operated even while the compressor is stopped, the humidifier may be excessively humidified, causing dew condensation, and condensed water droplets may go out of the duct or the device and cause water leakage or the like.

[0006] The present invention has been made in view of the above point, to prevent water leakage due to abnormality of the water supply solenoid valve,
It is to enable humidification corresponding to the humidity of room air.

[0007]

Means for Solving the Problems In order to achieve the above object, a solution taken by the invention according to claim 1 is to solve the problem in the case where a closing abnormality of the main valve means occurs in addition to the main valve means which is always used. The auxiliary valve means is provided.

Specifically, as shown in FIG. 1, a casing (3) having an inlet (4) and an outlet (5) is opened.
A heat exchanger (9) and a blower (8) are provided in an air passage (6) inside, and indoor air is sucked into the casing (3) from the suction port (4), and heat is exchanged in the heat exchanger (9). It is assumed that the air conditioner is designed to blow out from the outlet (5) into the room.

A humidifier (10) is provided in the air passage (6).
Is provided. The humidifier (10) is provided with a water supply means (M) having a water supply pipe (24) for supplying water. Further, a main valve means (SV2) and an auxiliary valve means (SV1) are provided in series with the water supply pipe (24) to open and close the water supply pipe (24). Further, a water supply abnormality detection means (13) for detecting an abnormality in water supply from the water supply means (M) to the humidifier (10) is provided. In addition, a normally open signal is output to the auxiliary valve means (SV1) and an open / close signal is output to the main valve means (SV2) to control the water supply to the humidifier (10). (B) is provided. In addition, if the water supply abnormality detecting means (13) detects an abnormality in water supply to the humidifier (10) while the opening / closing command means (B) is outputting a closing signal of the main valve means (SV2). , Auxiliary valve means (S
V1) is provided with an abnormality control means (I) which outputs a closing command signal of the auxiliary valve means (SV1) to the open / close command means (B) so as to close.

The solution taken by the invention according to claim 2 is as follows.
Before the humidifier is activated, the two valve means are alternately opened and closed to detect a closing abnormality of the two valve means in advance to determine the closing abnormality.

More specifically, as shown in FIG.
In addition to the humidifier (10), the water supply means (M) and the water supply abnormality detection means (13) in the invention according to the invention, the water supply pipe (2)
A first valve means (SV1) and a second valve means (SV2) for opening and closing 4) are arranged in series with the water supply pipe (24). Further, an abnormality detection opening / closing command means (C) for outputting an abnormality detection opening / closing signal so that the two valve means (SV1) and (SV2) open and close alternately is provided. Further, when the water supply abnormality detecting means (13) detects an abnormality in water supply to the humidifier (10) when the abnormality detection opening / closing instruction means (C) outputs an open / close signal, the abnormality detection opening / closing instruction means (C) is activated. Valve means (SV1) and (SV
A closing abnormality detecting means (S) for detecting the abnormality of V2) is provided.

The solution taken by the invention according to claim 3 is as follows.
As shown in FIG. 1, in addition to the invention according to claim 2, it detects a disconnection abnormality of the coils of the two valve means, and specifically, an open / close signal of the abnormality detection open / close command means (C). A disconnection abnormality detecting means (D) for detecting a disconnection of the valve means (SV1) and (SV2) by detecting the energization of each of the valve means (SV1) and (SV2) based on the above.

The solution taken by the invention according to claim 4 is as follows.
As shown in FIG. 1, in the invention according to claim 1, 2, or 3, the humidifier (10) is configured to have a variable humidification capacity, while the humidifier (10) has a variable humidification capacity. Humidity detecting means (Hu) for detecting humidity is provided. Further, it receives a humidity signal from the humidity detecting means (Hu), calculates the required humidification amount by comparing the detected relative humidity with the humidification-possible relative humidity, and sets the humidifier to have a humidification capacity corresponding to the required humidification amount. Humidification amount control means (H) for controlling the operation of (10) is provided.

[0014]

According to the above construction, when the blower (8) is driven, the room air is sucked into the air passage (6) from the suction port (4), and the heat exchanger ( After heat exchange in 9) and humidification by the humidifier (10), the air is blown into the room from the outlet (5).

In the invention according to the first aspect, in addition to the main valve means (SV2) which is always used, an auxiliary valve means (SV1) is provided in the water supply pipe (24). On the other hand, the water supply abnormality detection means (13) detects an abnormality in water supply to the humidifier (10). The opening / closing command means (B) is connected to the main valve means (S
V2) is receiving the detection signal from the water supply abnormality detection means (13) when the closing signal is being output, and when water is being supplied, the main valve means (SV2) is not operating normally.
The abnormality control means (I) outputs a closing signal of the auxiliary valve means (SV1) to the opening / closing command means (B), and the auxiliary valve means (SV1)
Will be closed. This allows the main valve means (SV
2) The water supply pipe (24) will be closed when an abnormal closing occurs.

According to the second aspect of the present invention, the abnormal water supply detecting means (13) is provided with the humidifier (10) when the abnormality detecting means (S) outputs the open / close signal of the abnormality detecting open / close command means (C). When the water supply abnormality is detected, the abnormality detection open / close command means (C) outputs the open / close signal to the valve means (SV
1), (SV2) error is detected. According to the third aspect of the invention, the disconnection abnormality detecting means (D) detects the energization of each of the valve means (SV1) and (SV2) based on the opening / closing signal of the abnormality detecting opening / closing command means (C). And the valve means (SV
1), (SV2) disconnection is detected. As a result, a malfunction of the two valve means (SV1) and (SV2) is detected in advance before the normal operation of the humidifier.

According to the invention of claim 4, claims 1 to
In addition to the invention according to the third aspect, the humidity detecting means (Hu) detects the suction air humidity from the suction port (4). The humidification amount control means (H) receives the humidity signal from the humidity detection means (Hu), and compares the detected relative humidity with the humidification possible relative humidity to calculate the humidification possible amount so that the humidification possible amount is obtained. The operation of the humidifier (10) is controlled. As a result, humidification is performed even while the compressor is stopped.

[0018]

As described above, according to the first aspect of the present invention, in the air conditioner equipped with an auxiliary heater in addition to a heat exchanger as a heat source for heating air, the main valve means (always used) is used. SV2) and auxiliary valve means (SV
1) is installed in the water supply pipe (24), so the main valve means (SV2)
When the closing abnormality occurs, the water supply pipe (24) can be closed, and the water supply can be reliably stopped. As a result, leakage of water from the drain pan (11) and unnecessary water supply can be prevented. In addition, an opening and closing control means for the auxiliary valve means (SV1) is separately provided, and the water supply pipe (2) is provided by the auxiliary valve means (SV1) until the main valve means (SV2) is replaced.
By performing the opening and closing of 4), the humidifying operation can be continuously performed.

In addition, before the humidifier (10) is operated, the two valve means (SV1) and (SV2) are closed in the invention according to the second aspect, and the coil is in the third aspect in the invention according to the third aspect. Since the disconnection abnormality is detected, the abnormality can be output and displayed to prevent water leakage, thereby improving the reliability of the humidifying operation. In addition, repair or replacement can be accurately known, and serviceability can be improved.

Further, by utilizing the opening / closing operation of the valve means (SV1) and (SV2) when detecting the closing abnormality, it is possible to detect the disconnection abnormality of the coil.

Further, according to the invention of claim 4, in addition to the invention of claims 1 to 3, since the humidification amount is controlled by the temperature and humidity of the suction air, the influence on the start / stop of the compressor is affected. While the humidifier (10) is operated without being humidified, the humidification shortage is eliminated, and water splashing from the air conditioner due to excessive humidification can be prevented, and the indoor air can be adjusted to the optimal humidity.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a specific example of an air conditioner to which the present invention is applied. The air conditioner (1) is a ceiling-embedded indoor unit.

The casing (3) of the air conditioner (1)
Is formed in a rectangular shape slightly longer in the front-rear direction, and a suction tube (4) serving as a suction port and an outlet tube (5) serving as an outlet are connected to both front and rear sides of the casing (3). Have been. An air passage (6) is formed from the suction tube (4) to the blowing tube (5) through the inside of the casing (3).

In the air passage (6) in the casing (3), a filter unit (7), a blower (8), a heat exchanger (9) and a humidifier (10) are provided from the upstream side of the blower. Are arranged side by side, and by driving the blower (8), room air is sucked into the air passage (6) from the suction tube (4), and heat is exchanged by the heat exchanger (9) to become hot air, and the humidifier ( After being humidified in 10), the air is blown into the room from the blowing cylinder (5). A drain pan (11) is provided over a wide range from the center of the casing (3) to the humidifier (10).
A drain pump (12) is provided above.

The humidifier (10) is a natural evaporative humidifier, and includes a humidifying pan (21) having a trapezoidal cross section, a group of humidifying elements (22) inserted and mounted therein, and a humidifying element (22). ) Chain hanging on the sloped lower edge of (2)
3). The water in the humidifying pan (21) spreads over the entire surface due to the capillary phenomenon, and naturally evaporates on the surface thereof to increase the humidity of the blown air. Humidified bread (2
It extends below the outer surface of the inclined wall of 1), from which surplus water that could not be completely evaporated drops and further flows down the drain pan (11) along the chain (23). .

A water supply pipe (24) is connected to the humidifying pan (21), and as shown in FIG.
Water pump or water tank (not shown), strainer (25), main solenoid valve (SV2) as main valve means (second valve means), and auxiliary valve means (first valve means)
And an auxiliary solenoid valve (SV1). A water supply means (M) is constituted by the water supply pipe (24), the strainer (25), and the water supply pump or the water supply tank.

The drain pump (12) is provided with a float switch (13) as water supply abnormality detecting means. The float switch (13) is electrically connected to a controller (15). The controller (15) is connected to a main solenoid valve (SV2) by a float switch (not shown) provided in the water supply container (21). ) To control the water supply to the humidifier (10), and is connected to an alarm unit (A) that issues an alarm such as lighting of an alarm lamp when the solenoid valves (SV1) and (SV2) are abnormal. ing.

Next, detection of abnormal closing of the solenoid valves (SV1) and (SV2) and abnormal disconnection of the coil before normal operation of the humidifier will be described with reference to FIG.

In step S1, it is determined by the float switch (13) whether or not the water level of the drain pan (11) is normal. When the water level is abnormally high, the process proceeds to step S2, and the drain pump (12) is operated to drain the drain. When the water level is normal, the process proceeds to step S3, in which the opening and closing signal of the auxiliary solenoid valve (SV1), which is the first solenoid valve, is output by the abnormality detection opening / closing command means (C), and the signal is sent to the main solenoid valve (SV2). Outputs the closing signal.

Next, the process proceeds to step S4, where it is determined whether or not the coil of the auxiliary solenoid valve (SV1) receiving the opening signal is disconnected. When there is no disconnection, only the main solenoid valve (SV2) closes the water supply pipe (24).
Then, the flow shifts to S5, where it is determined whether or not the water level of the drain pan (11) is abnormally rising. When the water level rises abnormally, the main solenoid valve (SV
2) It is determined that a closing abnormality has occurred, the process proceeds to step S6, and it is determined that the operation is defective. Further, after a closing abnormality signal of the main solenoid valve (SV2) is output in step S7, the process proceeds to step S13.
Close the auxiliary solenoid valve (SV1) to prevent water leakage before operating the humidifier (10).

When the water level is normal, the flow shifts to step S8 to output a closing signal of the auxiliary solenoid valve (SV1).
Outputs a signal to open the main solenoid valve (SV2). Then, the process proceeds to step S9, where the main solenoid valve (SV2) receiving the opening signal
It is determined whether or not the coil is disconnected. When there is no disconnection, only the auxiliary solenoid valve (SV1) is
4) is closed. Then, step S10
Then, it is determined whether or not the water level of the drain pan (11) is abnormally high. When the water level is abnormally rising, it is determined that the auxiliary solenoid valve (SV1) receiving the closing signal has caused the closing abnormality, the process proceeds to step S11, and it is determined that the operation is malfunctioning. Solenoid valve (SV
After outputting the closing abnormality signal of 1), the main solenoid valve (SV2) is closed in step S14 to prevent water leakage before operating the humidifier (10). When the water level is normal, the normal operation mode of the humidifier is started.

In step S4, the auxiliary solenoid valve (S
If there is a disconnection abnormality in the coil of V1), step S11
Then, the process proceeds to S12, where it is determined that the operation is defective, and a closing abnormality signal is output. In step S9, the main solenoid valve (S
When there is a disconnection abnormality in the coil of V2), the process proceeds to steps S6 and S7, where it is determined that the operation is defective, and a close abnormality signal is output.

In the abnormality detection flow of the solenoid valve, the two solenoid valves (SV1), (SV
V2) is provided with an abnormality detection opening / closing command means (C) for outputting an abnormality detection opening / closing signal so as to open and close alternately.

In steps S5 and S10, when the water supply abnormality detection means (13) detects an abnormality in water supply to the humidifier (10) when the open / close signal of the abnormality detection open / close instruction means (C) is output, the abnormality detection open / close instruction is issued. A closing abnormality detecting means (S) for detecting an abnormality of the solenoid valves (SV1) and (SV2) from which the means (C) outputs the open / close signal is configured.

At steps S4 and S9, each solenoid valve (SV) based on the opening / closing signal of the abnormality detection opening / closing command means (C).
1), (SV2) is detected and the solenoid valves (SV1), (SV2)
The disconnection abnormality detecting means (D) for detecting the disconnection of the above is configured. The disconnection abnormality detection means (D) uses the opening and closing operations of the solenoid valves (SV1) and (SV2) performed when detecting a closing abnormality, and detects the abnormality by detecting the presence or absence of voltage application during energization of the solenoid valve. I am trying to do it.

Next, water supply control to the humidifier (10) during normal operation during heating operation will be described with reference to the flowchart in FIG.

First, when humidification is performed, step S2
In step 1, the auxiliary solenoid valve (SV1) is kept open, and the process proceeds to step S22, where it is determined whether or not water is supplied to the humidifying pan (21) based on the water level of the drain pan (11) and the suction air humidity. When water is not supplied, the process returns to step S21.
When supplying water, open the main solenoid valve (SV2). Next, the process proceeds to step S24, where it is determined whether or not the water supply has been completed. When the water supply is to be performed, the process returns to step S23 to continue the water supply.
When the water supply is completed, the process proceeds to step S25, and the main solenoid valve (SV2) is closed. Next, the process proceeds to step S26, where the float switch (13) is used to set the drain pan (11).
It is determined whether or not the water level has risen. When the water level does not rise, it is determined that the main solenoid valve (SV2) has been normally closed, and the process returns to step S1. Main solenoid valve when water level rises
(SV2), it is determined that a closing abnormality has occurred, and step S27 is performed.
And the auxiliary solenoid valve (SV1) is closed. Further, the process shifts to step S28 to output a closing abnormal signal.

In the above control flow, step S2
At steps S23 and S25, a normally open signal is output to the auxiliary solenoid valve (SV1), and an opening signal and a closing signal are output to the main solenoid valve (SV2) to control water supply to the humidifier (10). Opening / closing command means (B) is configured.

In steps S25 to S27, when the open / close command means (B) is outputting the closing signal of the main solenoid valve (SV2), the water supply abnormality detecting means (13) supplies water to the humidifier (10). When an abnormality is detected, the auxiliary solenoid valve (SV1)
An auxiliary solenoid valve is provided to the opening / closing command means (B) so that
Abnormality control means (I) for outputting the closing command signal of (SV1) is configured.

According to the above embodiment, in addition to the main solenoid valve (SV2) which is always used, the auxiliary solenoid valve (SV1) is connected to the water supply pipe (2).
4), the water supply can be reliably stopped when the main solenoid valve (SV2) closes abnormally, and leakage of water from the drain pan (11) can be prevented. Also,
A separate opening / closing control means for the auxiliary solenoid valve (SV1) is provided.
If the water supply pipe (24) is opened and closed by the auxiliary solenoid valve (SV1) until the (SV2) is replaced, the humidification operation can be continued.

Further, before the humidifier (10) is operated, the closing abnormality of the two solenoid valves (SV1) and (SV2) and the disconnection abnormality of the coil are detected in advance, and the abnormality is output and displayed. Water leakage can be prevented beforehand and the reliability of the humidifying operation can be improved. In addition, repair or replacement can be accurately known, and serviceability can be improved.

Further, since the abnormality is detected by detecting the presence or absence of voltage application during energization of the solenoid valve, the opening / closing operation of the solenoid valves (SV1) and (SV2) performed when detecting the closing abnormality is utilized. By doing so, the disconnection abnormality of the coil can be detected.

Next, FIGS. 6 and 7 show modifications of the above embodiment. This modified example replaces the natural evaporative humidifier,
It uses an ultrasonic humidifier.

The ultrasonic humidifier (10a) is disposed on a drain pan (11) near the center of the casing (3). The ultrasonic humidifier (10a) includes a humidification container (32) constituting a water supply tank, and an operation control unit (33) configured to have a variable humidification capacity. The humidifying container (32) has an oscillator (34a) and an ultrasonic oscillator (34b) at the bottom.
The ultrasonic oscillation unit (34) is disposed, and the upper opening is an air outlet (35). Operation control unit (3
In 3), there are a power transformer (36) and a relay device (37).
Ultrasonic wave generator such as an electromagnetic valve (38), water level controller (3
9) A water supply unit including a low water level detector (40) and the like is housed. The solenoid valve (38) is connected to an external water supply means (M). The water supply means (M) has the same configuration as in the above embodiment, and a water supply pump (not shown) is connected to the water supply pipe (24).
And the main solenoid valve (SV2) which is the main valve means (second solenoid valve)
And an auxiliary solenoid valve (S
V1). And the solenoid valve (38)
Water is supplied to the humidifying container (32) from the humidifier via a water pipe (not shown), and the water near the water surface in the humidifying container (32) is atomized by ultrasonic vibration generated by the ultrasonic oscillation unit (34). The atomized water is discharged from the outlet (35). Excess water in the humidification container (32) is discharged from a drain port (41) formed in the side wall (32a) and flows down to the drain pan (11).

Before the operation of the ultrasonic humidifier (10a), the two solenoid valves (S) are operated in the same procedure as in the above embodiment.
After V1) and (SV2) are detected and humidification starts,
The auxiliary solenoid valve (SV1) is activated when the main solenoid valve (SV2) in the water supply is abnormally closed.

A humidity detecting means (Hu) for detecting the suction air humidity is provided outside the suction port (4), and the humidity detecting means (Hu) is connected to the controller (15). On the other hand, the controller (15) receives the humidity signal from the humidity detecting means (Hu), compares the detected relative humidity with the relative humidity capable of humidification, calculates the required humidification amount, and according to the required humidification amount. Humidifier (10a) for humidification ability
A humidification amount control means (H) for controlling the operation of the air conditioner is built in, so that the indoor air humidity is always kept in an optimum state. As shown in FIG. 8, the humidification-possible relative humidity is set to a relative humidity slightly lower than the saturation curve (value on the curve M), and the value depends on the form of the air conditioner and the installation of the ultrasonic humidifier (10a). It depends on the situation.

To control the humidification amount, an ultrasonic humidifier (10a) having a variable humidification capacity is used, and the humidification capacity is variably controlled using a thyristor or the like as the humidification amount control means (H). In this case, in accordance with the relative humidity difference between the detected relative humidity and the preset relative humidity after humidification, which is the target value of the relative humidity, the humidification capacity is increased and decreased to prevent dew condensation. Efficient humidification can be performed. Determine the humidification amount from the relative humidity difference,
In order to obtain the humidification amount using the humidification amount as an input, the following is performed. Since the humid air humidified by the ultrasonic humidifier (10a) changes on the isenthalpy line F as shown in FIG. 8, by detecting the air temperature and humidity before humidification, the detected relative humidity and The absolute humidity difference △ x (kg of water vapor / kg of dry air) can be calculated from the relative humidity that can be humidified.

Further, the humidification possible amount W (m ³ / hr) can be obtained from the absolute humidity difference Δx by using the following equation.

W = Q × 60 × 1.2 × Δx (1) where, Q: Air volume of air conditioner (m ³ / min) 1.2: Specific gravity of intake air to dry air Next, operation of humidification amount control To explain, the humidity sensor (H
u) detects the relative humidity, calculates the relative humidity difference based on the detected relative humidity, or calculates the humidification possible amount according to the equation (1) in FIG. 8 and calculates the relative humidity according to the relative humidity difference or the humidification possible amount. The operation of the sonic humidifier (10a) is controlled.

Accordingly, the ultrasonic humidifier (10a) can be operated without being affected by the start / stop of the compressor to eliminate insufficient humidification, while preventing water splashing from the air conditioner due to excessive humidification. Therefore, the indoor air can be adjusted to the optimal humidity.

The water supply abnormality detecting means (13) is not limited to the float switch, but may be a water level sensor.

[Brief description of the drawings]

FIG. 1 is a block diagram of an air conditioner of the present invention.

FIG. 2 shows an embodiment of the invention according to claims 1 to 3,
FIG. 2 is an overall layout diagram of the air conditioner.

FIG. 3 is an explanatory view showing a water supply unit.

FIG. 4 is a flowchart illustrating abnormality detection of a solenoid valve.

FIG. 5 is a flowchart illustrating water supply control.

FIG. 6 shows an embodiment of the invention according to claim 4, and is an overall layout diagram of the air conditioner.

FIG. 7 is a partially cutaway perspective view showing the structure of the ultrasonic humidifier.

FIG. 8 is a psychrometric chart.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioner 4 Suction cylinder 5 Blow-out cylinder 6 Air passageway 8 Blower 9 Heat exchanger 10 Humidifier 13 Water supply abnormality detection means 24 Water supply pipe M Water supply means SV2 Main solenoid valve (main valve means) SV1 Auxiliary solenoid valve (auxiliary valve means B) opening / closing command means C opening / closing command means for abnormality detection I abnormality control means S closing abnormality detection means D disconnection abnormality detection means Hu humidity detection means H humidification amount control means

Claims (4)

(57) [Claims] 1. A heat exchanger (9) and a blower (8) are provided in an air passage (6) in a casing (3) in which an inlet (4) and an outlet (5) are opened, and indoor air is provided. Is sucked into the casing (3) from the suction port (4), heat is exchanged by the heat exchanger (9), and is blown into the room from the outlet (5). A humidifier (10), a water supply means (M) having a water supply pipe (24) for supplying water to the humidifier (10), and a water supply means (M) provided in series with the water supply pipe (24); Tube (24)
Main valve means (SV2) and auxiliary valve means (SV
1), a water supply abnormality detecting means (13) for detecting water supply abnormality from the water supply means (M) to the humidifier (10), and a normally open signal to the auxiliary valve means (SV1). Opening and closing command means (B) for controlling the water supply to the humidifier (10) by outputting an opening signal and a closing signal to the means (SV2).
When the water supply abnormality detecting means (13) detects an abnormality in water supply to the humidifier (10) while the opening / closing command means (B) is outputting a closing motion signal of the main valve means (SV2),
An air conditioner characterized by comprising abnormality control means (I) for outputting a closing command signal for the auxiliary valve means (SV1) to the opening / closing command means (B) so that the auxiliary valve means (SV1) closes. Humidification control device of the device. 2. A heat exchanger (9) and a blower (8) are provided in an air passage (6) in a casing (3) in which an inlet (4) and an outlet (5) are opened, and indoor air is provided. Is sucked into the casing (3) from the suction port (4), heat is exchanged by the heat exchanger (9), and is blown into the room from the outlet (5). A humidifier (10), a water supply means (M) having a water supply pipe (24) for supplying water to the humidifier (10), and a water supply means (M) provided in series with the water supply pipe (24); Water supply pipe (24)
Valve means (SV1) for opening and closing the valve and second valve means
(SV2), water supply abnormality detection means (13) for detecting water supply abnormality from the water supply means (M) to the humidifier (10), and the two valve means (SV1) and (SV2) open and close alternately. Abnormality detecting opening / closing command means (C) for outputting an opening / closing signal for abnormality detection, and the water supply abnormality detecting means (13) at the time of outputting the opening / closing signal of the abnormality detecting opening / closing instruction means (C). 10) When the water supply abnormality is detected, the abnormality detection open / close command means (C) outputs the open / close signal to the valve means (SV
1) Closing abnormality detection means (S) for detecting abnormalities of (SV2)
A humidification control device for an air conditioner, comprising: 3. A heat exchanger (9) and a blower (8) are provided in an air passage (6) in a casing (3) in which an inlet (4) and an outlet (5) are opened, and indoor air is provided. Is sucked into the casing (3) from the suction port (4), heat is exchanged by the heat exchanger (9), and is blown into the room from the outlet (5). A humidifier (10), a water supply means (M) having a water supply pipe (24) for supplying water to the humidifier (10), and a water supply means (M) provided in series with the water supply pipe (24); Water supply pipe (24)
Valve means (SV1) for opening and closing the valve and second valve means
(SV2), water supply abnormality detection means (13) for detecting water supply abnormality from the water supply means (M) to the humidifier (10), and the two valve means (SV1) and (SV2) open and close alternately. Abnormality detecting opening / closing command means (C) for outputting an opening / closing signal for abnormality detection, and the water supply abnormality detecting means (13) at the time of outputting the opening / closing signal of the abnormality detecting opening / closing instruction means (C). 10) When the water supply abnormality is detected, the abnormality detection open / close command means (C) outputs the open / close signal to the valve means (SV
1) Closing abnormality detection means (S) for detecting abnormalities of (SV2)
Disconnection for detecting disconnection of the valve means (SV1) and (SV2) by detecting the energization of each of the valve means (SV1) and (SV2) based on the open / close signal of the abnormality detection open / close command means (C). A humidification control device for an air conditioner, comprising: an abnormality detection means (D). 4. The humidification control device for an air conditioner according to claim 1, wherein the humidifier (10) is configured to have a variable humidification capacity, while detecting the humidity of suction air from the suction port (4). Receiving the humidity signal from the humidity detecting means (Hu) and the humidity detecting means (Hu), and comparing the detected relative humidity with the relative humidity capable of being humidified to calculate a required humidifying amount, and according to the required humidifying amount. A humidification control device for an air conditioner, comprising: humidification amount control means (H) for controlling operation of a humidifier (10) so as to have a humidification capacity.