JPH04297742A - Control method for air conditioner with dryer - Google Patents

Abstract

PURPOSE:To perform a comfortable dryer operation without raising the blow-out air temperature from a dryer excessively by appropriately controlling the blow- out air temperature of the dryer. CONSTITUTION:For an air conditioner with dryer for which a dryer and an air conditioner are integrally combined, and the downstream side of an indoor exchanger of the air conditioner and the suction side of the dryer are communicated; a temperature sensor such as a room temperature thermistor, etc., which detects the intake air temperature for the air conditioner, is equipped, and the heating quantity of a heater for hot air in the dryer is shifted in steps (e.g. 3 steps of high, intermediate and low) in response to the intake air temperature for the air conditioner, at the time of hot air blow-out operation of the dryer. At the same time, a hot water valve for an indoor heat exchanger for heating of the air conditioner, which is for backing up, is controlled to obtain a comfortable blow-out temperature.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling an air conditioner equipped with a dryer that is normally installed in a sanitary space.

0002

[Prior Art] Recently, an air conditioner with a dryer has been proposed that is installed in a sanitary space such as a dressing room and is equipped with a dryer nozzle for performing spot cooling, spot heating, spot ventilation, etc. to dry the body after bathing. .

[0003] To explain the structure of such an air conditioner with a dryer, for example, the one proposed in Japanese Patent Application No. 2-114445, it is embedded in the ceiling of a sanitary space such as a dressing room, and is connected to the main body of the air conditioner. The main body of the air conditioner has an air intake port and an air conditioning outlet on the bottom surface, and has a built-in indoor heat exchanger for heating and cooling and an air conditioning fan. A dryer fan and a ceramic heater that take in air from the downstream side of the indoor heat exchanger of the main body are arranged in a cylindrical dryer case, and a dryer nozzle whose angle with respect to the dryer case can be adjusted is connected.

[0004] In the above-mentioned air conditioner with a dryer, when the dryer is in use and the temperature of the intake air to the dryer (that is, the indoor temperature of the sanitary space) is lower than the set temperature (for example, 20 degrees Celsius), the indoor heat of the air conditioner itself is reduced. By operating the exchanger in heating operation (backup operation) and causing the dryer to draw air preheated by the indoor heat exchanger, the heating of the air due to the heat generated by the ceramic heater is backed up and high-temperature air for the dryer is blown.

[0005] Furthermore, when the intake air temperature to the dryer (the indoor temperature of the sanitary space) is higher than the set temperature (20 degrees Celsius), the heating operation of the indoor heat exchanger of the air conditioner is turned off and the ceramic heater is turned off. The temperature of the dryer air is raised only by the heat generated by the dryer.

[0006]

[Problems to be Solved by the Invention] However, in the control of the conventional air conditioner equipped with a dryer when the dryer is in use, the temperature of the intake air to the dryer (the indoor temperature of the sanitary space) is lower than the set temperature (20 degrees Celsius). When the temperature is high, only the ceramic heater continues to generate heat, and the temperature of the air blown from the dryer is not controlled, so there is a problem that the temperature of the air blown from the dryer becomes too high.

An object of the present invention is to provide a method for controlling an air conditioner with a dryer, which allows comfortable dryer operation by appropriately controlling the temperature of the air blown out from the dryer.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the method of controlling an air conditioner with a dryer of the present invention incorporates a dryer and an air conditioner into one, and a downstream of an indoor heat exchanger of the air conditioner. An air conditioner with a dryer that communicates between the side and the suction side of the dryer is equipped with a temperature sensor such as a room temperature thermistor that detects the intake air temperature of the air conditioner. It switches the heat output of the hot air heater in the dryer into multiple levels (for example, 3 levels of high, medium, and low) depending on the temperature, and also controls on/off the indoor heat exchanger for heating in the air conditioner. When the intake air temperature is low, the heat output of the hot air heater is increased, and at the same time the indoor heat exchanger for heating is turned on to increase the temperature of the hot air from the dryer, and when the intake air temperature is within a predetermined range, the heating output is increased. The indoor heat exchanger is turned off to further increase the heat output of the hot air heater, and if the intake air temperature is higher than a predetermined temperature, the heating indoor heat exchanger is turned off to reduce the heat output of the hot air heater. By doing so, the dryer can be operated comfortably without excessively increasing the temperature of the air blown from the dryer.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An air conditioner with a dryer to which the present invention is applied will be explained with reference to FIGS. 1 and 2. The main body 1 of the air conditioner with a dryer is embedded in the ceiling wall W of the sanitary space, and is equipped with an intake port 2 and a louver 4 on the indoor side of the sanitary space, and an air conditioning outlet 3 that blows out hot or cold air. A dryer nozzle 5 is provided which is normally stored in a storage recess 6 and pulled out when in use.

Inside the main body 1 of the air conditioner with a dryer, a partition wall 14 having spot vents 15 separates an air conditioner A having an intake port 2 and an air conditioning outlet 3 on the bottom surface, and a dryer D having a dryer nozzle 5 on the bottom surface. It is divided into
The air conditioner A is provided with a filter 21 and a room temperature thermistor 22 inside the intake port 2, and a refrigerant reciprocating pipe 71 is connected to the outdoor unit (not shown) in the flow path from the intake port 2 to the air conditioning outlet 3. an indoor heat exchanger 7 for air conditioning connected to the indoor heat exchanger 7 for heating; An indoor fan 13 is arranged in order, and an indoor heat exchanger 7 for cooling
A heat exchanger temperature detection thermistor 9 is provided in contact with the heating indoor heat exchanger 8, and the louver 4 disposed at the air conditioning outlet 3 is connected to the arm 4 of the auto louver motor 41.
They are connected via 2.

A drain pan 10 is disposed below the indoor heat exchanger 7 for cooling and the indoor heat exchanger 8 for heating, and a drain reservoir 101 is continuously provided on the side of the drain pan 10. is provided with a detection electrode 11 and a drain pump 12 for detecting the liquid level of the stored drain;
Drain pipe 1 connected to the discharge side of the drain pump 12
21 is led out of the air conditioner main body 1.

During air conditioning operation, indoor air is sucked in from the intake port 2 (arrow F1), and cold air cooled by the cooling indoor heat exchanger 7 (during cooling) or heated indoor heat exchanger 8 is used.
The indoor fan 13 blows warm air (during heating) heated by the
2) It is something.

[0013] The dryer D has a filter 1 at the intake port at one end.
A spot fan 17 for a dryer equipped with 8 is provided,
Internal hot air ceramic heater 19, temperature fuse 19
0 and a heating prevention switch 191 are installed, a dryer nozzle 5 is connected to the other end of the dryer case 16 so that its angle can be adjusted with respect to the dryer case 16, and a spot ventilation hole 1 of the partition wall 14 is installed.
5 to indoor heat exchanger 7 for cooling and indoor heat exchanger 8 for heating
When the dryer D is in operation, indoor air may be sucked in from the air conditioning outlet 3, but at this time the indoor fan 13 is set to a gentle breeze operation. This makes it possible to suppress the suction of indoor air.

The connecting end of the dryer nozzle 5 to the dryer case 16 is supported by a rotating shaft 50 and rotated by a motor 51 to adjust the angle of the dryer nozzle 5 with respect to the dryer case 16. A nozzle position detection device 52 is arranged to detect the angle with respect to the nozzle position.

The dryer D is capable of blowing out hot air or cold air as required, and when operating to blow out hot air, the angle of the dryer nozzle 5 with respect to the dryer case 16 is adjusted to move the dryer nozzle 5 into the sanitary space. When hot air is required, the ceramic heater 19 is energized to heat the air from the spot fan 17 and blow hot air. However, depending on the strength of the operation mode and the intake air temperature, the hot water adjustment valve 80 is turned on when necessary to operate the heating indoor heat exchanger 8 of the air conditioner A, and the intake air temperature of the spot fan 17 is adjusted. is raised to make the temperature of the hot air blown out from the dryer nozzle 5 sufficiently high (backup operation).

On the other hand, when cold air is required, the cold air obtained by operating the cooling indoor heat exchanger 7 of the air conditioner A is sucked into the dryer D through the spot ventilation port 15, and is then sucked into the dryer D from the dryer nozzle 5 by the spot fan 17. It blows air.

Next, the control method will be explained with reference to the flowchart of FIG. 3. When using the dryer D, that is, performing spot ventilation, the strength of the operating mode is determined, and when operating in the weak mode, the room temperature is Thermistor 2
If the temperature of the intake air sucked in from the intake port 2 detected in step 2 exceeds the first set temperature (for example, 20 degrees Celsius), the second set temperature (
For example, if the temperature is below 30 degrees Celsius, the ceramic heater 19
The automatic hot water valve 80 is turned off with the calorific value set to medium capacity (for example, 800 W).

[0018] Also, the intake air temperature is set to the second set temperature (30 degrees Celsius).
If the heating value exceeds 100° C.), the calorific value of the ceramic heater 19 is set to a weak capacity (for example, 400 W), and the automatic hot water valve 80 is turned off to prevent an excessive rise in the air blowing temperature and perform spot air blowing.

Note that when performing the weak mode operation, the hot water regulating valve 80 is automatically turned off before determining the intake air temperature.
The backup operation may be maintained in a stopped state, and then the intake air temperature may be determined and the amount of heat generated by the ceramic heater 19 may be switched.

[0020] Also, the intake air temperature is the first set temperature (20 degrees Celsius).
(degrees) or lower, the weak mode operation will lower the temperature of the hot air that is blown at spots and cause discomfort to the user, so the strong mode operation will be performed to obtain hot air at the desired temperature.

When performing strong mode operation, when the intake air temperature is below the first set temperature (20 degrees Celsius), the calorific value of the ceramic heater 19 is set to medium capacity (800 W), the automatic hot water valve 80 is turned on, and the heater is turned on for heating. The indoor heat exchanger 8 is operated and backup operation is performed to obtain hot air at a desired temperature.

Next, the intake air temperature is set to the first set temperature (20 degrees Celsius).
If the temperature exceeds the second set temperature (30 degrees Celsius) and is lower than the second set temperature (30 degrees Celsius), the calorific value of the ceramic heater 19 is
0W), the automatic hot water valve 80 is turned off, and no backup operation is performed.

Furthermore, the intake air temperature is set to a second set temperature (3 degrees Celsius).
If the temperature exceeds 0°C, the calorific value of the ceramic heater 19 is set to medium capacity (800 W), the automatic hot water valve 80 is turned off, and spot air blowing is performed while suppressing an excessive rise in the blowing temperature.

As mentioned above, by controlling the operation of the ceramic heater (warm air heater) 19 and heating indoor heat exchanger 8 on and off according to the operation mode and the intake air temperature, an appropriate temperature of the hot air blown out can be obtained. It is something that can be done.

[0025] So far, only the air conditioner with a dryer that is buried in the ceiling wall of a sanitary space has been described, but the installation location and the type of air conditioner with a dryer are not limited to those described above. Of course.

[0026]

[Effect of the invention] When the dryer is operating to blow out hot air, the amount of heat generated by the hot air heater in the dryer is switched between multiple stages according to the intake air temperature of the air conditioner, and the indoor heat exchanger for heating the air conditioner is By controlling on/off, when the intake air temperature is low, the heat output of the hot air heater is increased, and at the same time, the heating indoor heat exchanger is turned on to increase the temperature of the hot air from the dryer, and the intake air temperature is maintained at a predetermined level. When the temperature is within the range, the heating indoor heat exchanger is turned off to further increase the calorific value of the hot air heater, and when the intake air temperature is higher than the specified temperature, the heating indoor heat exchanger is turned off and the warm air heater is turned off. By reducing the amount of heat generated by the heater, the dryer can be operated comfortably without excessively increasing the temperature of the air blown from the dryer.

[Brief explanation of drawings]

FIG. 1 is an external view of an air conditioner with a dryer to which the present invention is applied.

FIG. 2 is a schematic configuration diagram of an air conditioner with a dryer to which the present invention is applied.

FIG. 3 is a flowchart showing a control method according to an embodiment of the present invention.

[Explanation of symbols]

1 Air conditioner body 2 Intake port 3 Air conditioning outlet 5 Dryer nozzle 7 Indoor heat exchanger for cooling 8 Indoor heat exchanger for heating 13 Indoor fan 17 Spot fan for dryer

Claims (1)

[Claims] [Claim 1] An air conditioner with a dryer in which a dryer and an air conditioner are integrated, and the downstream side of an indoor heat exchanger of the air conditioner communicates with the suction side of the dryer. Equipped with a temperature sensor that detects temperature, when the dryer is blowing hot air, the amount of heat generated by the hot air heater in the dryer can be switched to multiple levels depending on the intake air temperature of the air conditioner. A method for controlling an air conditioner with a dryer, characterized by controlling a heat exchanger on and off.