JPH0526494A - Method for controlling air conditioner - Google Patents

Abstract

PURPOSE:To enable an air conditioner to promptly start an operation when directed to start the operating. CONSTITUTION:An air conditioner consists of an indoor unit A and an outdoor unit B. The indoor side control part 4 is equipped with a memory in which a plurality of operation modes each for specific ranges of indoor temperatures, humidity degrees, and outdoor temperatures are stored. The system is designed to start the operation of the compressor 8 quickly when an order to start the operation has been given by a remote control or the like. When a signal to start the operation has been inputted to the indoor side control part 4, the first step is to find the difference between the temperature of the room under control at the time when the last operation was stopped and the temperature of the room at the time of resuming the operation and then on the basis of the temperature difference thus obtained and the operation mode used the last time the operation mode to be used for the resumed start of the air conditioning is decided. For example, when the temperature of the room at the time of starting the operation this time is higher than when the operation was last stopped and the mode of operation was in cooling or in drying the last time, by deciding on the same operation mode as the last time the compressor 8 is started operating immediately.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner control method, and more particularly to a method of setting an operation mode at the start of operation.

[0002]

2. Description of the Related Art An indoor unit side of an air conditioner is provided with a temperature detecting sensor for detecting an indoor temperature, a humidity detecting sensor for detecting a humidity, an indoor side control unit for controlling an indoor fan, etc. There is a temperature detection sensor that detects the outdoor temperature on the unit side, and an outdoor side control unit that controls the compressor, the outdoor fan, etc., and a signal line connects between the indoor side control unit and the outdoor side control unit, Information is being exchanged. The microcomputer of the indoor-side control unit stores a plurality of operating modes classified by the indoor temperature, the humidity, and the value of the outside air temperature in the memory of the microcomputer. The operation mode suitable for one detection data is selected, and the compressor and the like are controlled. At the start of the initial operation, the indoor temperature obtained when the indoor fan and the outdoor fan are operated for 1 minute,
The operation mode is determined based on the humidity and the outside air temperature.

[0003]

However, in the above-described control method, the operation mode at the start of the initial operation cannot be determined until 1 minute has elapsed after the operation start command, and therefore, until then, the indoor fan is not selected. Only the outdoor fan operates, and the compressor cannot operate. Therefore, the start of air conditioning is actually delayed by 1 minute, which is inconvenient for the user. Therefore, an object of the present invention is to provide a control method for an air conditioner that can eliminate such inconvenience and start air conditioning immediately after an operation start command.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and determines the indoor temperature and humidity and the outdoor temperature, and an operation mode suitable for these three data. Is selected from a plurality of operating modes stored in advance, in an air conditioner configured to control the compressor or the like based on the operating mode, the operating mode at the start of operation of the air conditioner, The difference between the room temperature at the time of the last stop of operation and the room temperature at the start of this time,
It was decided based on the previous operation mode.

[0005]

With the above control method, the operation mode at the start of operation is determined by the difference between the room temperature at the time of the last stop of operation and the room temperature at the start of the current operation, and the last operation mode. If the user issues an operation start command using a remote controller or the like, the compressor is started at almost the same time, and the start of air conditioning can be accelerated.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing an outline of a control system of an air conditioner. In the figure, A is the indoor unit side,
Reference numeral B denotes the outdoor unit side, 1 is a light receiving portion for remote control signals, 2 is a temperature detection sensor for detecting indoor temperature, 3 is a humidity detection sensor for detecting indoor humidity, and 4 is an input signal from the temperature detection sensor 2 or the like. The indoor side control unit that controls the operation of the indoor fan 5 based on the above, and exchanges signals with the outdoor unit side, 6 is an outdoor side control unit, 7 is an inverter unit that is drive-controlled by the outdoor side control unit 6, Reference numeral 8 is an inverter-controlled compressor, 9 is an outdoor fan, and 10 is a temperature detection sensor for detecting the outdoor temperature.

By the way, although not shown in the room-side control section 4, it is divided according to the values of humidity, room temperature, and outside air temperature as shown in FIGS. 2 (A) and 2 (B). A memory that stores multiple operating modes that have been set, a memory that stores the previous operating mode, a memory that stores the room temperature when operation is stopped, and the room temperature and operation when this operation is stopped. There are comparators and the like for obtaining the difference with the room temperature at the start, and when the user gives an instruction to start the operation by, for example, remote control operation, the indoor control unit 4 causes the indoor fan 5 to operate.
The outdoor side control unit 6 starts the operation of the outdoor fan 9 respectively, and the indoor side control unit 4 detects the operation mode at the time of starting the operation, the indoor temperature at the time of the operation stop and the temperature detection at the time of the operation start. The indoor temperature difference is obtained from the indoor temperature obtained from the sensor 2, and control is performed to determine the operation mode at the start of operation based on this indoor temperature difference and the operation mode before operation stop stored in the memory. ing.

FIG. 3 is a flow chart showing the state of this control. When the operation is instructed in step ST1, the process proceeds to step ST2 and the room temperature is detected. Step S
At T3, the difference between the indoor temperature at the time of the previous operation stop and the indoor temperature at the time of the current operation start is calculated, and the process proceeds to step ST4. In this step ST4, it is judged whether or not the indoor temperature has risen between the time when the previous operation was stopped and the time when this operation is started based on the indoor temperature calculated in step ST3. Proceed to ST5, if the room temperature has not risen (if it has fallen)
It proceeds to step ST8. When the operation proceeds to step ST5, it is determined whether the previous operation was the cooling operation or the dry operation, and when it is determined that the operation was the cooling operation or the dry operation, the operation proceeds to step ST6 and the same operation mode as the previous operation. Then, the operation of the compressor is started, and the process proceeds to step ST7.

If it is determined in step ST5,
If the previous operation was neither the cooling operation nor the dry operation, the process proceeds to step ST10 to detect the outside air temperature and the indoor humidity, and then the process proceeds to step ST11 to execute a plurality of operation modes as shown in FIG. The operation mode suitable for the indoor temperature and humidity and the outdoor temperature is selected from the inside to start the operation of the compressor, and the process proceeds to step ST7. Also,
When the process proceeds to step ST8 by the determination in step ST4, it is determined in step ST8 whether the previous operation was the heating operation, and if it was the heating operation, the compressor 8 is operated in the same operation mode as the previous operation. However, if it is determined in step ST8 that the previous operation was not the heating operation, the operation proceeds to step ST10 to detect the outside air temperature and the indoor humidity, and then to step ST7. In ST11, the operation mode that matches the indoor temperature and humidity and the outdoor temperature is selected from among the plurality of operation modes shown in FIG. 2 to start the operation of the compressor 8, and then in step ST7. Control is made to proceed.

[0010]

According to the air conditioner controlled as described above, the operation mode at the start of operation has a difference between the room temperature at the time of the last operation stop and the room temperature at the present operation start, Since it is determined by the previous operation mode, it is possible to speed up the start of operation of the compressor by nearly 1 minute compared to the conventional method, and it is possible to make the room quicker and more comfortable.
It is convenient for users.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a control system of an air conditioner showing an embodiment of the present invention.

FIG. 2 is a sectional view of operation modes according to the present invention.

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

[Explanation of symbols]

1 Remote control signal receiver 2 Temperature detection sensor 3 Humidity detection sensor 4 Indoor side control unit 5 Indoor fan 6 Outdoor control section 7 Inverter section 8 compressor 9 outdoor fan 10 Temperature detection sensor

Claims (2)

[Claims] 1. An indoor temperature and humidity and an outdoor temperature are obtained, an operation mode suitable for these three data is selected from a plurality of operation modes which are stored in advance, and based on the operation mode. In an air conditioner configured to control a compressor or the like, the operation mode at the start of operation of the air conditioner, a difference between the room temperature at the time of the last operation stop and the room temperature at the start of the current operation, A method for controlling an air conditioner, characterized in that it is determined based on a previous operation mode. 2. When calculating the difference between the room temperature at the time of the last operation stop and the room temperature at the time of the current operation start, if the room temperature is rising, whether the previous operation was the cooling operation or the dry operation was performed. If it is the cooling operation or the dry operation, the operation is started in the same operation mode as the previous time, and if it is neither the cooling operation nor the dry operation, the indoor temperature and humidity are selected from among the plurality of operation modes. , Select an operation mode that matches the outdoor temperature and start the operation.If the indoor temperature calculated by comparison does not rise, it is determined whether the previous operation was the heating operation. If it is not the heating operation, select the operation mode that matches the indoor temperature and humidity and the outdoor temperature from the above multiple operation modes. The method for controlling an air conditioner according to claim 1, wherein the operation is started by selecting one of them.