JP3097358B2 - Control method of 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 a method for controlling an air conditioner having a humidifying function.

[0002]

2. Description of the Related Art FIG. 1 shows a conventional air conditioner. 1 is a heat exchanger, 2 is a blower, 3 is a suction temperature sensor, 4 is a water supply tank, 5 is a humidifying means, 6 is a water supply path connecting the water supply tank 4 and the humidification means 5, and 7 is a water supply path 6 A water supply valve 8 provided near the water supply tank 4 is an outer shell of the indoor unit. Reference numeral 9 denotes humidification water in the water supply tank 4. Reference numeral 10 denotes a control unit.

[0003] The operation of the conventional air conditioner control method configured as described above will be described below. When this air conditioner is used for the humidifying operation, the control means 10 opens the water supply valve 7 and supplies the humidification water 7 in the water supply tank 4 to the humidification means 5 through the water supply passage 6. Blower 2 at the same time
Start The air humidified by the humidifying means 5 is blown out of the indoor unit by the blower 2. The above operation may be performed simultaneously with the heating operation.

[0004]

However, in the control method described above, the humidifying operation is started even when the indoor temperature falls below freezing point and the humidifying water 9 in the water supply tank 4 and the water supply passage 6 is frozen. However, since the water supply valve 7 is forcibly opened, the water supply valve 7 has a defect.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to prevent a water supply valve from being damaged even when the temperature of a room falls below freezing and humidification water is frozen.

[0006]

In order to solve the above problems, the present invention provides a heat exchanger, a blower,
It has a suction temperature sensor, a water supply tank, a humidifying means, a water supply path connecting the water supply tank and the humidification means, a water supply valve provided near a water supply tank of the water supply path, and a control means for controlling an air conditioner. .

The present invention also provides a heat exchanger, a blower, a suction temperature sensor, a water supply tank, humidifying means, a water supply path connecting the water supply tank and the humidification means, and a water supply tank near the water supply path in the indoor unit. , A control means for controlling the air conditioner, and a water temperature sensor in a water supply passage or a water supply tank.

[0008]

The operation of the above means is as follows. The control means always detects the temperature in the indoor unit or the suction temperature by the suction temperature sensor regardless of whether the air conditioner is operating or stopped. The control means measures a time t1 at which the temperature s detected by the suction temperature sensor continuously rises above the preset water supply valve operation permission set temperature S1. Further, the control means determines that the temperature s detected by the suction temperature sensor is
A time t2 for continuously rounding the preset water supply valve operation prohibition set temperature S2 is measured. When the humidification operation is started and the water supply valve is operated, the control means permits the operation of the water supply valve if t1 is a predetermined time or more, and prohibits the operation of the water supply valve if t2 is a predetermined time or more. T1 and T2 are 0
May be.

The control means detects the temperature in the indoor unit or the suction temperature by the suction temperature sensor while the air conditioner is started to operate and the blower is operating. The control means measures a time t1 at which the temperature s detected by the suction temperature sensor continuously rises above the preset water supply valve operation permission set temperature S1. Further, the control means measures a time t2 in which the temperature s detected by the suction temperature sensor continuously exceeds a preset water supply valve operation inhibition set temperature S2. When the humidification operation is started and the water supply valve is operated, the control means permits the operation of the water supply valve if t1 is equal to or more than the predetermined time T1, and prohibits the operation of the water supply valve if t2 is equal to or more than the predetermined time T2. T1 and T2 may be zero.

[0010] When the air conditioner is stopped, the control means activates the air blower once every predetermined time D1 with a slight wind for the time D1.
2 Operate. While the blower is operating, the suction temperature sensor detects the suction temperature. The control means measures the time ts1 during which the temperature s detected by the suction temperature sensor continuously rises above a preset water supply valve operation permission set temperature (during stop) SS1. Further, the control means measures a time ts2 in which the temperature s detected by the suction temperature sensor continuously circumvents a preset water supply valve operation prohibition set temperature (during stop) SS2. When the humidification operation is started and the water supply valve is operated, the control means permits the operation of the water supply valve if ts1 is equal to or longer than the predetermined time TS1, and ts2 is the predetermined time TS2.
If so, the operation of the water supply valve is prohibited. TS1 and T
S2 may be 0. When the air conditioner is operating, the control means detects the suction temperature by the suction temperature sensor while the blower is operating. The control means measures the time tr1 during which the temperature s detected by the suction temperature sensor continuously rises above the preset water supply valve operation permission set temperature (during operation) SR1. Further, the control means measures a time tr2 in which the temperature s detected by the suction temperature sensor continuously passes a preset water supply valve operation inhibition set temperature SR2 (during operation). When the humidification operation is started and the water supply valve is operated, the control means permits the operation of the water supply valve if tr1 is equal to or longer than the predetermined time TR1, and prohibits the operation of the water supply valve if tr2 is equal to or longer than the predetermined time TR2. TR1 and TR
2 may be 0.

The control means always detects the temperature of the humidifying water by the water temperature sensor regardless of whether the air conditioner is operating or stopped. The control means determines that the temperature w detected by the water temperature sensor is equal to the preset water supply valve operation permission set temperature W1.
Is counted as a time t1 during which the time is continuously reached. Further, the control means measures a time t2 in which the temperature w detected by the water temperature sensor continuously circumvents a preset water supply valve operation inhibition set temperature W2. When the humidification operation is started and the water supply valve is operated, the control means permits the operation of the water supply valve if t1 is a predetermined time or more, and prohibits the operation of the water supply valve if t2 is a predetermined time or more. T1 and T2 may be zero.

[0012]

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

First, a first embodiment of the present invention will be described with reference to FIG. FIG. 1 shows an indoor unit of the air conditioner of the present invention. 1 is a heat exchanger, 2 is a blower, 3 is a suction temperature sensor, 4 is a water supply tank, 5 is a humidifying means, 6 is a water supply path connecting the water supply tank 4 and the humidification means 5, and 7 is a water supply path 6 A water supply valve 8 provided near the water supply tank 4 is an outer shell of the indoor unit. Reference numeral 9 denotes humidification water in the water supply tank 4. Reference numeral 10 denotes a control unit.

The control operation in the above configuration will be described. The control means 10 always detects the temperature in the indoor unit or the suction temperature by the suction temperature sensor 3 regardless of whether the air conditioner is operating or stopped. The control means 10 measures a time t1 at which the temperature s detected by the suction temperature sensor 3 continuously rises above a preset water supply valve operation permission set temperature S1. Further, the control means 10 measures a time t2 in which the temperature s detected by the suction temperature sensor 3 continuously passes a preset water supply valve operation inhibition set temperature S2. If t1 is longer than a predetermined time, the operation of the water supply valve is permitted, and if t2 is longer than a predetermined time, the operation of the water supply valve 7 is prohibited. While the humidification operation is started and the operation of the water supply valve 7 is permitted, the water supply valve 7 is opened as necessary to supply the humidification water 9 in the water supply tank 4 to the humidification means 5 through the water supply passage 6. The air humidified by the humidifying means 5 is blown out of the indoor unit by the blower 2.

Next, a second embodiment of the present invention will be described with reference to FIG. Since the configuration is the same as that of the first embodiment of the present invention, the description is omitted, and the control operation will be described below. The control means 10 detects the suction temperature by the suction temperature sensor 3 while the air conditioner is operating and the blower 2 is operating. The control means 10 measures a time t1 at which the temperature s detected by the suction temperature sensor 3 continuously rises above a preset water supply valve operation permission set temperature S1. Further, the control means determines that the temperature t detected by the suction temperature sensor continuously exceeds the preset water supply valve operation inhibition set temperature S2 for a time t.
Time 2 The control means 10 permits the operation of the water supply valve if t1 is equal to or longer than the predetermined time T1,
If so, the operation of the water supply valve is prohibited. While the humidification operation is started and the operation of the water supply valve 7 is permitted, the water supply valve 7 is opened as necessary to supply the humidification water 9 in the water supply tank 4 to the humidification means 5 through the water supply passage 6. The air humidified by the humidifying means 5 is blown out of the indoor unit by the blower 2.

Next, a third embodiment of the present invention will be described with reference to FIG. Since the configuration is the same as that of the first embodiment of the present invention, the description is omitted, and the control operation will be described below. The control means is 1
When the zero air conditioner is stopped, the air blower 2 is operated for a time D2 by a breeze once every predetermined time D1. Blower 2
While the is operating, the suction temperature sensor 3 detects the suction temperature. The control means 10 measures a time ts1 during which the temperature s detected by the suction temperature sensor 3 continuously rises above a preset water supply valve operation permission set temperature (during stop) SS1. Further, the control means measures a time ts2 in which the temperature s detected by the suction temperature sensor continuously circumvents a preset water supply valve operation prohibition set temperature (during stop) SS2. The control means 10 permits the operation of the water supply valve 7 if ts1 is equal to or longer than the predetermined time TS1, and ts2 indicates the predetermined time T1.
If not less than S2, the operation of the water supply valve 7 is prohibited. When the air conditioner is operating, the control means 10 controls the blower 2.
While the is operating, the suction temperature sensor 3 detects the suction temperature. The control means 10 measures a time tr1 at which the temperature s detected by the suction temperature sensor 3 continuously rises above a preset water supply valve operation permission set temperature (during operation) SR1. The control means determines that the temperature s detected by the suction temperature sensor is equal to the preset water supply valve operation inhibition set temperature S.
A time tr2 for continuously rounding R2 (during operation) is measured. The control means 10 permits the operation of the water supply valve 7 if tr1 is equal to or longer than the predetermined time TR1, and
If it is 2 or more, the operation of the water supply valve 7 is prohibited. While the humidification operation is started and the operation of the water supply valve 7 is permitted, the water supply valve 7 is opened as necessary to supply the humidification water 9 in the water supply tank 4 to the humidification means 5 through the water supply passage 6. The air humidified by the humidifying means 5 is blown out of the indoor unit by the blower 2.

Next, a fourth embodiment of the present invention will be described with reference to FIG. FIG. 2 shows an indoor unit of the air conditioner of the present invention. 1 is a heat exchanger, 2 is a blower, 3 is a suction temperature sensor, 4 is a water supply tank, 5 is a humidifying means, 6 is a water supply path connecting the water supply tank 4 and the humidification means 5, and 7 is a water supply path 6 A water supply valve 8 provided near the water supply tank 4 is an outer shell of the indoor unit. Reference numeral 9 denotes humidification water in the water supply tank 4. Reference numeral 10 denotes a control unit.
Reference numeral 11 denotes a water temperature sensor provided in the water supply tank 4.

The control operation in the above configuration will be described. The control means 10 always detects the temperature of the humidifying water 9 by the water temperature sensor 11 regardless of whether the air conditioner is operating or stopped. The control means 10 measures a time t1 during which the temperature w detected by the water temperature sensor 11 continuously rises above a preset water supply valve operation permission set temperature W1. The control means 10 controls the temperature w detected by the water temperature sensor 11.
However, it measures a time t2 continuously flowing over a preset water supply valve operation prohibition set temperature W2. Control means 10
Allows the operation of the water supply valve 7 if t1 is longer than a certain time, and prohibits the operation of the water supply valve 7 if t2 is more than a certain time. While the humidification operation is started and the operation of the water supply valve 7 is permitted, the water supply valve 7 is opened as necessary to supply the humidification water 9 in the water supply tank 4 to the humidification means 5 through the water supply passage 6. The air humidified by the humidifying means 5 is blown out of the indoor unit by the blower 2.

[0019]

As is apparent from the above embodiment, the present invention detects the freezing and thawing of the humidifying water based on the temperature detected by the suction temperature sensor and the time measured by the control means, and permits the opening and closing of the water supply valve. Or, by prohibiting the operation, the water supply valve is prevented from operating while the humidification water is frozen, and the water supply valve is prevented from malfunctioning.

Further, according to the present invention, after the operation of the air conditioner, the freezing and melting of the humidifying water is detected based on the temperature detected by the suction temperature sensor during the operation of the blower and the time measured by the control means, and the opening and closing of the water supply valve is performed. Is permitted or prohibited to prevent the water supply valve from operating while the humidifying water is frozen, thereby avoiding a failure of the water supply valve.

The present invention also provides a method for operating a humidifying water based on the temperature detected by a suction temperature sensor and the time measured by a control means, by operating a blower periodically at a constant time and a constant interval even when the air conditioner is stopped. By detecting the freezing and thawing of the humidifying water and permitting or prohibiting the opening and closing of the water supply valve, the water supply valve is prevented from operating while the humidifying water is frozen, and the water supply valve is prevented from malfunctioning.

In the present invention, a water temperature sensor is provided in a water supply passage or a water supply tank, and based on the water temperature detected by the water temperature sensor and the time measured by the control means, the freezing and melting of the humidifying water is detected, and the opening and closing of the water supply valve is performed. By permitting or prohibiting the operation, the water supply valve is prevented from operating while the humidifying water is frozen, and the water supply valve is prevented from malfunctioning.

[Brief description of the drawings]

FIG. 1 shows the first embodiment of the present invention. Second. Configuration diagram of a third embodiment and a conventional air conditioner

FIG. 2 is a configuration diagram of an air conditioner according to a fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Blower 3 Suction temperature sensor 4 Water supply tank 5 Humidification means 6 Water supply path 7 Water supply valve 8 Indoor unit outer shell 9 Humidification water 10 Control means 11 Water temperature sensor

Continuing from the front page (72) Inventor Yasuhisa Ninomiya 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-64-43351 (JP, A) JP-A-2-213636 (JP) , A) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 11/02 102 F24F 6/00 331

Claims (4)

(57) [Claims] 1. A heat exchanger, a blower,
A humidification function including a suction temperature sensor, a water supply tank, a humidifying means, a water supply path connecting the water supply tank and the humidification means, a water supply valve provided near a water supply tank in the water supply path, and a control means for controlling an air conditioner. Wherein the opening and closing of the water supply valve is permitted or prohibited based on the temperature detected by the suction temperature sensor and the time measured by the control means. 2. The opening and closing of the water supply valve is permitted or prohibited according to the temperature detected by the suction temperature sensor during the operation of the blower and the time measured by the control means after the air conditioner starts operating. Air conditioner control method. 3. Even when the air conditioner operation is stopped, the blower is operated periodically for a fixed time and at a fixed interval, and the opening and closing of the water supply valve is permitted based on the temperature detected by the suction temperature sensor and the time measured by the control means. The control method for an air conditioner according to claim 1, wherein the control is prohibited. 4. The water supply sensor according to claim 1, wherein a water temperature sensor is provided in the water supply passage or the water supply tank, and the opening and closing of the water supply valve is permitted or prohibited according to the water temperature detected by the water temperature sensor and the time measured by the control means. Control method of air conditioner.