JPH04131651A - Control device for air conditioner - Google Patents

Abstract

PURPOSE:To provide a fast raising or lowering of an indoor temperature and create a comfortable indoor environment in a fast manner by a method wherein a preliminary operation is carried out at a specified advanced time and an operating frequency is decreased during a preliminary operation and then the operating frequency is increased up to a rated frequency by an input timer. CONSTITUTION:A control microcomputer 6 sets an input time under a reducing timer system to an input timer 8 with a signal from a timer setting circuit of a remote controller device 1 before a specified time elapses from its time-up state. Concurrently, the preliminary operation is set by a signal from a preliminary operation switch 9 according to whether it is required or not. A control microcomputer 6 stores and keeps a condition of soft sound operation with a signal from soft-sound-operation /automatic-soft-sound-operation switch 4 and further a set state of the input timer 8. As the input timer 8 is operated and the preliminary operation starting time is attained, the control microcomputer 6 decreases it lower than a rated frequency by a frequency control circuit 10, sends it as a frequency output to a frequency converter circuit 11, decreases the capacity of a compressor 12 so as to perform a soft sound operation. As the input timer 8 times up, the operation returns to its normal operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an operation control device for an air conditioner having an inverter circuit that varies compression function power through frequency control.

[Conventional technology]

Conventionally, even in air conditioners with inverter circuits,
During normal operation, the operation is controlled near the rated frequency (50/60H2), and in this state, the noise generated from the air conditioner is loud and is not noticeable during daytime operation because it is mixed in with other environmental noise, but at night Early in the morning, the sound was harsh and often caused discomfort to users.

In order to reduce noise, set the operating frequency of the compressor to a lower frequency than the rated frequency. Although the compression function will be reduced, the noise generated from the air conditioner can be kept low, and it can be used at night or at night. We are dealing with this problem by manual operation from a remote control device, etc. or by low-capacity operation within a specified time using a timer.

However, in harsh environmental conditions such as mid-summer or mid-winter, if you run the air conditioner for the required amount of time, the room temperature will not reach the desired temperature, resulting in conditions that are either too hot or too cold, making it difficult to maintain a comfortable living environment. could not be generated.

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned problems of the conventional technology. By starting preliminary operation according to the instructions from the timer, and immediately controlling the operation based on the indoor temperature from the time of time-up, it is possible to generate the appropriate indoor temperature at the required time even in harsh environments such as midsummer or midwinter. The purpose of the present invention is to provide an air conditioner control device that can control the air conditioner.

[Means for Solving the Problems] In order to achieve the above object, an inverter circuit is provided which performs variable capacity operation of the compressor of the air conditioner through frequency control, and an air conditioner that starts operation at a specified time using an "on" timer. In the conditioner, the air conditioner starts operation a certain period of time earlier depending on the indoor temperature condition to perform a preliminary operation, and during the preliminary operation, the operating frequency is lowered by frequency control to perform low-capacity silent operation, The timer's time amplifier raises the operating frequency to the rated frequency and returns to normal operation.

[Effect]

According to the above configuration, the remote control device is provided with an operation stop switch, a silent/automatic silent switch, a timer setting circuit, a preliminary operation switch, etc., and the operating conditions of the air conditioner are set and sent to the main body control unit by an infrared signal. The control microcomputer in the control unit sets the time-up time of the "on" timer to the decrement timer, sets quiet/auto-quiet settings, and whether preliminary operation is necessary, and operates the decrement timer at the same time as the air conditioner starts. When the pre-operation start time is reached after a predetermined period of time has elapsed, the set "auto quiet" instruction will cause the compressor to operate at a lower operating frequency than the rated frequency to perform silent operation, and the "one person" timer will be activated. When the time-up occurs, the operating frequency of the compressor is set to the rated frequency and normal operation is resumed, and the air conditioner continues to operate in accordance with the indoor temperature.

If the "quiet" instruction is given, silent operation will continue even after the "on" timer times up, and if there is no light, normal operation at the rated frequency will continue even after the preliminary operation and "on" timer times up. continue.

〔Example〕

Embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an external perspective view showing the configuration of the remote control device 1 of the present invention.
Push buttons such as the following are arranged, and by pressing the push button,
The setting status is displayed at a predetermined position on the liquid crystal display section 2.

As an example, in the case of the silent/automatic silent switch 4, by holding down the silent button, the silent and automatic sections on the display will flash in sequence, and "quiet" will light up when in silent operation, and when in automatic silent operation. "Auto" and "Silent" both light up,
During normal operation, the setting status can be confirmed by turning off the lights.

The control signal set by the pushbutton is sent out as an infrared serial signal, enters the light receiving section of the indoor unit, is converted into an electrical signal, and is sent to the control section 5.

Figure 2 is a block diagram showing the control system.
The control signal sent from the control unit 5 is sent to the control microcomputer 6
In response to the signal from the timer setting circuit 7 of the remote controller 1, the control microcomputer 6 sets the "on" time in the "on" timer 8 using a decrement timer method, and the set "on" time becomes 0. As shown in Fig. 4 or 5, the preliminary operation start time is set to a certain period of time before the time-up of the "on" timer 8 (for example, about 30 minutes), and It can be reliably grasped that the time has been subtracted by about 30 minutes from the timer 8 display.

At the same time, the necessity of preliminary operation is set by a signal from the preliminary operation switch 9.

Further, the control microcomputer 6 stores and holds the conditions for silent operation based on a signal from the silent/automatic silent switch 4, and the setting state of the "on" timer 8 based on a signal from the timer setting circuit 7.

1 person" timer 8 operates and when the preliminary operation start time comes,
The control microcomputer 6 lowers the frequency below the rated frequency using the frequency control circuit 10 and sends the frequency output to the frequency conversion circuit 11 to lower the capacity of the compressor 12 to achieve silent operation.

FIG. 3 is a flowchart showing the details of the present invention, in which the operation mode, indoor temperature setting, air volume and direction of the indoor unit are set in advance using the remote control device 1, and by pressing the operation switch, an infrared signal is sent to the indoor unit. The air conditioner is sent to the machine and the air conditioner is set to an operational state (22).

In this state, the control microcomputer 6 determines whether the "r-on" timer 8 is set (23), and if it is set, the setting state of the "on" timer 8, that is, the "on" time, and the silent operation setting. , reads out the necessity of preliminary operation, the preliminary operation start time, etc. 24), and starts the "on" timer 8 (25)
.

If "on" timer 8 is not set "on" timer 8
When canceled (26), normal operation is immediately started (27).

1 person" Timer 8 reaches the preliminary operation start time (28), and if quiet operation (29) and preliminary operation are set (30)
, the quiet operation is started, and the room is heated or cooled until the "on" timer 8 times out to adjust to a constant state (31).

If the "ON" timer 8 times up (32) and "Quiet automatic" is set, the operation returns to normal (33), and if it is not set (34), manually "Quiet operation cancel" is set. Unless J (35) is performed, silent operation (31) will continue.

If quiet operation is not set at the preliminary operation start time (36) and preliminary operation is set (37), preliminary operation is performed as normal operation (38), and when the "on" timer 8 times out (39). ) Continue normal operation (27).

4 and 5 are diagrams showing the operating state of the air conditioner of the present invention and the state of the "on" timer 8, in which FIG. 4 is in the "automatic quiet" state and FIG. 5 is in the "quiet" state. It shows.

〔Effect of the invention〕

As described above, in the present invention, the air conditioner is
By performing preliminary operation a certain amount of time before the "on" time set in the "on" timer, the rise or fall of the indoor temperature can be advanced earlier than the specified time, thereby creating a comfortable indoor environment when you wake up or return home. can be formed.

[Brief explanation of drawings]

Figure 1 is an external perspective view showing the configuration of the remote control device. Figure 2 is a block diagram showing the control system. Figure 3 is the flowchart. Figure 4 shows the operating state during "auto silent" and the "on" timer 8.
FIG. 5 is a time diagram showing the state of "quiet". In the figure, 1 is a remote control device, 2 is a liquid crystal display unit, 3 is a preliminary operation switch, 4 is a silent/automatic silent switch, 5 is a control unit, 6 is a control microcomputer, 7 is a timer setting circuit, and 8 is an “on” switch. A timer, 9 a preliminary operation switch, 10 a frequency control circuit, 11 a frequency conversion circuit, 12 a compressor, and 13 an operation switch.

Claims (3)

[Claims] (1) In an air conditioner that is equipped with an inverter circuit that performs variable capacity operation of the compressor through frequency control and starts operation at a specified time using an "on" timer, the air conditioner is operated a certain period of time earlier depending on the indoor temperature condition. During the preliminary operation, the operating frequency is lowered by frequency control to perform low-capacity silent operation, and when the "on" timer times out, the operating frequency is increased to the rated frequency and normal operation is resumed. A control device for an air conditioner, characterized in that: (2) The air conditioner according to claim (1), wherein during the preliminary operation of the air conditioner, the operation is switched to normal operation in response to cancellation of an "on" timer or change in indoor temperature setting. Control device. (3) The control device for an air conditioner according to claim (1), wherein the preliminary operation operation by the "on" timer is set by a remote control device.