JPH11173632A - Control method for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the second dash operation instantly, and improve the utilization of the dash function without giving a user uncomfortable feeling, in an air conditioner. SOLUTION: When the switch 3a for the dash operation of a remote controller 3 is operated, an indoor machine controller 10 transfers the code to maximize the number of revolutions of an indoor fan motor 6 and also to maximize the operation frequency of a compressor 4 to an outdoor machine controller 5, and lowers or raises the room temperature quickly by maximizing the capacity of the air conditioner. After performing this dash operation for a specified time, it switches the operation into normal operation, but in case that the room temperature is reaching the set temperature of the remote controller 3 at that time, it performs the waiting operation of the minimum capacity for the time specified by a timer 10aa. When the switch 3a for dash operation is operated again within this specified time, it performs the dash operation, and when the switch 3a is not operated, it performs usual operation after passage of the specified time.

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 of an inverter type for providing a comfortable environment in a room, and more particularly to a method of improving the use of a dash operation for rapidly reducing or increasing the room temperature. It relates to a control method.

[0002]

2. Description of the Related Art When an operation command is issued by a remote controller or the like, this air conditioner operates a refrigeration cycle by driving a compressor or the like to maintain a comfortable environment in the room by setting the temperature of the remote controller. For example, as shown in FIG. 3, the indoor unit controller 1 determines the operating frequency code of the compressor 4 based on the room temperature detected by the indoor temperature detector 2 and the set temperature set by the remote controller 3. While transmitting the operating frequency code and the like to the outdoor unit control unit 5, the indoor fan motor 6 is rotationally driven.

The outdoor unit control unit 5 converts the operating frequency code from the indoor unit control unit 1 into an operating frequency value by an operating frequency instructing unit 5a, and according to the converted operating frequency value, via a compressor driving unit 5b. 4 to circulate the refrigerant to the indoor unit side heat exchanger. Thereby, since a desired cool air or warm air is blown into the room, the room temperature can be adjusted and the room can be maintained at a set temperature to maintain a comfortable environment.

The remote controller 3 is provided with a dedicated switch 3a for setting a dash function, so that a dash operation can be performed according to a user's request. When the dash function is set, the indoor unit control unit 1 transfers the operating frequency code that maximizes the operating frequency of the compressor 4 to the outdoor unit control unit 5 while maximizing the rotation speed of the indoor fan motor 6. . That is, in order to operate the air conditioner at full power, for example, the room temperature can be rapidly lowered during the cooling operation, and the room temperature can be rapidly raised during the heating operation. Therefore, for example, when the user returns home or gets hot from the bath, the room can be quickly set as desired, which is convenient.

[0005]

In the method of controlling an air conditioner, if the dash operation is forgotten to cancel the dash operation regardless of the set temperature so that the operation becomes full power operation, deterioration of the indoor environment (excessive decrease). , Rise too much). Therefore, the dash operation is performed for a predetermined time (for example, 20 minutes).
Minutes), the dash function is automatically released and normal operation is switched.

However, even if the switch 3a is operated to activate the dash function again 20 minutes later,
The dash operation does not immediately start, which may give the user discomfort, and the dash function may not be fully utilized. That is, when the dash function is automatically released, if the room temperature has already reached the set temperature, that is, when switching from the dash operation to the normal operation (room temperature adjustment), the operation of the compressor 4 is turned off, and the compressor 4 is turned off. Is stopped for a predetermined time (for example, 3 minutes) to protect the compressor 4
During this period, the compressor 4 cannot be operated, for example, the room temperature rises during the cooling operation, and decreases during the heating operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to immediately perform a dash driving again without giving any discomfort to the user and to improve the use of the dash function. It is an object of the present invention to provide a method of controlling an air conditioner that can perform the control.

[0008]

In order to achieve the above object, the present invention controls at least a compressor and an indoor fan to adjust the room temperature so as to bring the room temperature to a set temperature, while controlling the operating frequency of the compressor. And a method of controlling an air conditioner in which a dash operation is enabled for a predetermined time by maximizing the rotation speed of an indoor fan, when automatically switching to a normal operation (room temperature adjustment operation) after performing the dash operation for a predetermined time, the room temperature When the temperature reaches the set temperature, the minimum capacity operation is performed for a predetermined time without stopping the operation of the compressor at least.

In the control method for an air conditioner according to the present invention, when the dash operation is performed for a predetermined time and then automatically switched to a normal operation (room temperature adjustment operation), when the room temperature has reached a set temperature, the compressor is not used. When the minimum capacity operation is performed for a predetermined time by minimizing the operating frequency of the indoor fan and the number of rotations of the indoor fan, and the dash operation can be re-executed within the predetermined time, while the minimum capacity operation is performed for a predetermined time, It is characterized in that normal operation is automatically performed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to FIGS. In the figure,
The same parts as those in FIG. 3 are denoted by the same reference numerals, and redundant description will be omitted.

In FIG. 1, when an indoor unit control section 10 of a control device to which the control method of an air conditioner of the present invention is applied receives a signal from a remote controller 3, it determines a dash operation setting signal and performs a dash function. Of the operation of
A dash determination that measures a dash operation time (for example, 20 minutes), and after 20 minutes, instructs a standby operation (minimum capacity operation) and has a timer 10aa that measures the minimum capacity operation time (for example, at least 3 minutes). Part 10a
And a room temperature adjustment judging unit 10b for judging room temperature adjustment based on a room temperature and a set signal (set temperature) of the room temperature detected by the room temperature detecting unit 2 and issuing an instruction, a dash judging unit 10a and a room temperature adjusting judging unit 10b. An operating frequency code indicating unit 10c for transferring an operating frequency code of the compressor 4 and other necessary information to the outdoor unit control unit 6 according to the instruction, and an air flow mode signal (air flow setting; strong, weak, light wind, etc.) and an indoor fan. Fan motor drive section 10d for driving motor 6 to rotate
And Note that the indoor unit controller 10 also has the function of the indoor unit controller 1 shown in FIG.

Next, the operation of the control device for an air conditioner having the above configuration will be described in detail with reference to the flowchart of FIG. 2. First, it is assumed that a normal operation is performed. Note that the normal operation is room temperature adjustment control in which the room temperature is set and maintained by the remote controller 3.

In this case, if the operation of the remote controller 3 is not performed, the indoor unit controller 10 continues the room temperature adjustment control (S
T1, ST2). When the switch 3a of the remote controller 3 is turned on and a setting signal for dash operation is issued from the remote controller 3, the indoor unit control unit 10 receives the setting signal and proceeds from step ST1 to ST3 to execute a dash driving process. As described in the conventional example, the dash operation maximizes the rotation speed of the indoor fan motor 6 and maximizes the operation frequency of the compressor 4, for example, rapidly lowers the room temperature during the cooling operation and rapidly decreases the room temperature during the heating operation. Raise to

Further, a timer (predetermined time: 20 minutes) of the timer 10aa is started to manage the time of the dash operation, and the dash operation is performed until the timer expires (step ST4). When the timer expires, it is determined whether the room temperature has reached the set temperature (step ST5). For example, it is determined whether the room temperature is equal to or lower than the set temperature during the cooling operation, and whether the room temperature is equal to or higher than the set temperature during the heating operation.

When the room temperature has reached the set temperature, the process proceeds from step ST5 to ST6, where the operation of the air conditioner is switched to a standby operation. This standby operation minimizes the number of revolutions of the indoor fan motor 6 and minimizes the operating frequency of the compressor 4 so that the room temperature does not suddenly change. That is, when the room temperature has reached the set temperature, when the dash operation is switched to the normal operation, the compressor 4 is not operated because the compressor 4 is in the off condition (that is, the compressor 4 is stopped). This is because the compressor 4 cannot be restarted unless a predetermined time (time for protecting the compressor) elapses after the compressor 4 is temporarily stopped, during which time the indoor environment rapidly deteriorates.

At the same time as the start of the standby operation, a timer (predetermined time; at least 3 minutes) of the timer 10aa is started. The standby operation is performed until the timer expires (step ST7). During the three minutes, the operation of the remote controller 3 is monitored, and it is determined whether or not the dash driving switch 3a is turned on (step S).
T8) If the switch 3a is not turned on, it is determined whether or not a setting change operation (a change in the air volume or the set temperature) has been performed (step ST9).

When the dash driving operation is performed,
Returning from step ST8 to ST3, the above-described processing is executed. In this case, since the operation of the compressor 4 is not stopped, the dash operation can be performed immediately, that is, it is possible to maximize the operation frequency of the compressor 4 and maximize the rotation speed of the indoor fan motor 6. Can reduce the indoor environment rapidly,
Alternatively, it is possible to answer the request of the user.

If there is a setting change, step ST9 is performed.
To ST2, and the normal operation is executed according to the changed setting. Therefore, as described above, since the operation of the compressor 4 is not stopped, the normal operation can be immediately performed, that is, the user's wish can be answered. If the remote controller 3 is not operated and the standby operation is performed for 3 minutes, the process proceeds from step ST7 to ST2 to execute a normal operation, that is, to adjust the room temperature according to the settings of the remote controller 3 already.

In step ST5, when the room temperature has not reached the set temperature, the operation of the compressor 4 does not stop even if the dash operation is switched to the normal operation. The normal operation is immediately executed without performing the operation (step ST2).

As described above, when switching from the dash operation to the normal operation, when the room temperature has reached the set temperature, the standby operation with the minimum capacity is performed for a predetermined time, so that the operation of the dash operation is performed again within the predetermined time. Is performed, since the operation of the compressor 4 is not stopped, the dash operation can be immediately performed, that is, the room can be rapidly lowered (or raised), and the user is discomforted. Without using the dash function.

When the dash operation is not performed within the predetermined time, the operation is switched to the normal operation after the predetermined time. However, the room temperature changes by the standby operation. For example, the room temperature exceeds the set temperature during the cooling operation. During the heating operation, the room temperature is likely to be lower than the set temperature. Therefore, the operation of the compressor 4 does not stop during the normal operation, that is, the indoor environment is not deteriorated, and the room temperature is quickly set to the set temperature. be able to. In addition, it can be applied to an air conditioner that automatically performs dash operation at the start of operation,
That is, by performing the standby operation for a predetermined time after the dash operation, when the dash operation is performed, the dash operation can be immediately performed based on the above-described conditions.

[0022]

As described above, according to the first aspect of the control method of the air conditioner, when the dash operation is performed for a predetermined time, the operation is automatically switched to the normal operation (room temperature adjustment operation). When the room temperature has reached the set temperature, at least the minimum capacity operation is performed for a predetermined time without stopping the operation of the compressor, so that the dash operation is performed when the minimum capacity operation is performed for a predetermined time. If this is done, since the compressor is not stopped, the dashing operation can be performed again immediately without any discomfort to the user, and the effect of improving the use of the dash function can be achieved. is there.

According to the second aspect of the present invention, when the dash operation is performed for a predetermined time and then automatically switched to the normal operation (room temperature adjustment operation), when the room temperature reaches the set temperature, the operating frequency of the compressor is increased. And while performing the minimum capacity operation for a predetermined time while minimizing the rotation speed of the indoor fan,
While the dash operation can be re-executed within the predetermined time, the normal operation is automatically performed when the minimum capacity operation is performed for the predetermined time, so that the same effect as in claim 1 is obtained. In addition, if the dash operation is not performed again and the operation is switched to the normal operation after performing the minimum capacity operation for a predetermined time, since the room temperature changes by the minimum capacity operation, the normal operation can be performed without stopping the compressor, That is, there is an effect that deterioration of the indoor environment can be suppressed.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a control device according to an embodiment of the present invention, to which an air conditioner control method is applied;

FIG. 2 is a schematic flowchart for explaining the operation of the control device shown in FIG. 1;

FIG. 3 is a schematic block diagram of a conventional control device for an air conditioner.

[Explanation of symbols]

 1, 10 indoor unit control unit 2 indoor temperature detection unit 3 remote control 3a switch (dash operation switch) 4 compressor 5 outdoor unit control unit 6 indoor fan motor 10a dash determination unit 10aa timer 10b room temperature adjustment determination unit 10c operating frequency code indicating unit 10d fan motor drive

Claims (2)

[Claims] At least a compressor and an indoor fan are controlled to adjust the room temperature so that the room temperature can be set to a set temperature, and the dash operation can be performed for a predetermined time by maximizing an operation frequency of the compressor and a rotation speed of the indoor fan. In the air conditioner control method, when automatically switching to a normal operation (room temperature adjustment operation) after the dash operation is performed for a predetermined time, at least the operation of the compressor is performed when the room temperature has reached a set temperature. A method for controlling an air conditioner, wherein a minimum capacity operation is performed for a predetermined time without stopping. 2. Controlling at least the compressor and the indoor fan to adjust the room temperature to the set temperature to adjust the room temperature, while enabling the dash operation for a predetermined time by maximizing the operating frequency of the compressor and the rotation speed of the indoor fan. In the control method of the air conditioner, when the dash operation is performed for a predetermined time and then automatically switched to a normal operation (room temperature adjustment operation), when the room temperature has reached the set temperature, the operating frequency of the compressor and While the minimum capacity operation is performed for a predetermined time with the number of rotations of the indoor fan being the minimum, the dash operation can be re-executed within the predetermined time, while the minimum capacity operation is automatically performed when the minimum capacity operation is performed for a predetermined time. A method for controlling an air conditioner, comprising: