JPH06185784A - Method for controlling air conditioner - Google Patents

Abstract

PURPOSE:To provide a method for controlling an air conditioner in which comfortableness is not impaired by the stop of a compressor when a set temperature is high in the case of cooling during sleeping. CONSTITUTION:Since an air conditioner has 'a sleeping operation mode' capable of preventing excessive cooling at the time of sleeping (which is a function of stepwise increasing a set temperature at the time of cooling at each predetermined time) and 'a dehumidifying operation mode' for lowering m humidity in a room, the two modes are differently used as shown in the drawing. When the 'sleeping operation mode' is set by a remote controller, a controller of the conditioner judges whether the set temperature is a predetermined value or high or not (step ST1), switches to the 'dehumidifying operation mode' if it is the predetermined value or more (step ST2), or conducts cooling by the 'sleeping operation mode' if the set temperature is lower than the predetermined value (step ST3). If the 'sleeping operation mode' is eliminated during operating, all the operation is stopped (step ST4).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method for an air conditioner, and more particularly to a control method for performing a cooling operation by selecting a "sleep mode".

[0002]

2. Description of the Related Art In an air conditioner, there is a "sleep mode" that can prevent excessive coldness when sleeping.
A "dehumidifying operation mode" for reducing the indoor humidity is provided, and these operation modes can be selectively set on the remote control side. By the way, "good night driving mode"
This is a control operation in which the set temperature during the cooling operation is raised stepwise by a predetermined value every predetermined time and then the final temperature is maintained, so for example, you can set this "good night operation mode" at bedtime. For example, the room temperature can be raised in stages to a certain value, and it is possible to prevent excessive coldness at bedtime. In addition, when the operating time (operation stop time) is set, the operation is stopped at that time, and the setting of the "good night driving mode" is also canceled.

[0003]

However, in the cooling operation in the "good night operation mode" described above, the set temperature is raised in the same operation mode regardless of whether the temperature set by the remote controller is high or low. If it is high, the compressor may operate ON / OFF. When the compressor is turned on / off, the dehumidifying capacity is lowered, and the indoor humidity is increased, which causes a problem that comfort is deteriorated. Therefore, an object of the present invention is to provide an air conditioner control method that can solve the above-mentioned problems.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and after the set temperature during the cooling operation is increased stepwise by a predetermined value every predetermined time, the final In an air conditioner equipped with a "good night operation mode" for holding the temperature and a "dehumidifying operation mode" for decreasing humidity, when the set temperature when the "good night operation mode" is selected is less than a predetermined value, "good night" The cooling operation is performed in the "operation mode", and the dehumidification operation in the "dehumidification operation mode" is performed when the value is equal to or more than a predetermined value.

[0005]

[Operation] With the above configuration, "good night driving mode"
When the set temperature at the time of selection is less than the predetermined value, the cooling operation in the "good night operation mode" is performed, and when it is more than the predetermined value, the dehumidification operation in the "dehumidification operation mode" is performed, so it is possible to prevent the set temperature from rising too high. At the same time, an increase in humidity can be suppressed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows an outline of a control system for an air conditioner, where 1 is an indoor unit controller, 2 is an outdoor unit controller, and 3 is a remote controller. All of these three units are equipped with a microcomputer, but the indoor unit control unit 1 controls overall system control of the air conditioner, and the outdoor unit control unit 2 controls the operation command signal from the indoor unit control unit 1. The operation control of the compressor 4 and the like is performed based on the (serial signal). Indoor unit control unit 1
Determines the operation mode of the air conditioner (operation / stop, cooling, heating, dehumidification, blast, air volume, room temperature setting, timer setting, sleep operation, etc.) based on the command from the remote controller 3.
The indoor unit is controlled, the operation command signal is output to the outdoor unit control unit 2, and the information (monitor signal) on the outdoor unit side transmitted from the outdoor unit control unit 2 to the indoor unit control unit 1 is received. , Used for operation control. It should be noted that the indoor unit side has an infrared light receiving unit 5 for receiving a remote control signal, a temperature sensor 6 for detecting a room temperature, a humidity sensor 7 for detecting humidity, an indoor blower 8 and the like, and an outdoor unit side. Includes a temperature sensor 9 for detecting the outdoor temperature, an outdoor blower 10, and the like, and the remote controller 3 includes a switch 11 for setting the "good night operation mode" and a plurality of switches not shown.

FIG. 2 shows how the set temperature changes in the "good night operation mode". For example, when the set temperature in the normal cooling operation is a value shown between t0 and t1, t1 If the "good night operation mode" is set at the time of, the set temperature is increased by 0.5 ° C every 30 minutes, and the temperature is maintained at the time t4 when the total temperature is increased by 2 ° C. Therefore, if the "good night operation mode" is set when the initial set temperature is high, the upper limit of the cooling operation may be exceeded, and the compressor 10 will be turned ON / OFF. Therefore, in the present embodiment, when the set temperature at the time of setting the "good night operation mode" is less than a predetermined value, the cooling operation is performed in the "good night operation mode", and when the set temperature is equal to or higher than the predetermined value, the dehumidifying operation in the "dehumidifying operation mode"I'm trying to do.

FIG. 3 is a control flow chart when the "good night operation mode" is set. First, in step ST1, it is judged whether or not the set temperature is equal to or higher than a predetermined value, and the temperature is equal to or higher than the predetermined value. If it is determined that the operation is advanced to step ST2, the operation is switched to the "dehumidifying operation mode". If it is determined in step ST1 that the set temperature is less than the predetermined value, the process proceeds to step ST3, the cooling operation based on the "good night operation mode" is started, and the process proceeds to step ST4. In step ST4, it is determined whether or not the setting of the "good night driving mode" has been canceled in the middle, and if it has not been canceled, step ST4
The operation is returned to 1 and the work of steps ST1, ST2, ST4 or steps ST1, ST3, ST4 is repeatedly executed. Become. With such a control method, it is possible to switch to the "dehumidifying operation mode" even when the set temperature exceeds a predetermined value during the cooling operation based on the "good night operation mode".

[0009]

As described above, in the case of the air conditioner having the control function as described above, the cooling operation in the "night sleep operation mode" is performed when the set temperature when the "night sleep operation mode" is selected is less than the predetermined value. However, when the value is equal to or more than the predetermined value, the dehumidifying operation is performed in the "dehumidifying operation mode". Therefore, the inconvenience such as the compressor stopping and the humidity rising during the operation is eliminated, and the comfort is maintained.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a control system for an air conditioner according to the present invention.

FIG. 2 is an explanatory diagram of a “good night driving mode” according to the present invention.

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

[Explanation of symbols]

 1 Indoor unit control unit 2 Outdoor unit control unit 3 Remote controller 4 Compressor 5 Infrared light receiving unit 6 Temperature sensor 7 Humidity sensor 8 Indoor blower 9 Temperature sensor 10 Outdoor blower 11 "Good night operation mode" switch

Claims (2)

[Claims] 1. A "good night operation mode" in which the final temperature is maintained after a preset temperature is raised stepwise by a predetermined value every predetermined time, and a "dehumidifying operation mode" in which the humidity is reduced. In an air conditioner comprising, when the set temperature at the time of selecting the "good night operation mode" is less than a predetermined value, the cooling operation is performed by the "good night operation mode", and when the set temperature is equal to or higher than the predetermined value, the "dehumidifying operation mode" A method for controlling an air conditioner, characterized in that the dehumidifying operation is performed by the method. 2. The air conditioner according to claim 1, wherein when the set temperature or the room temperature reaches a predetermined value during the cooling operation in the "good night operation mode", the "good night operation mode" is switched to the "dehumidifying operation mode". Control method.