KR20000008585A - Operating device for power breakage return of air conditioner and method thereof - Google Patents

Abstract

PURPOSE: An operating device for a power breakage return is provided to maintain a stopped state while returned from the power breakage if the power breakage is continued over a certain period for preventing an air conditioner from being operated needlessly. CONSTITUTION: An operating device for a return from a power breakage comprises:an electric power instrument(100) transforming a compatible alternate current voltage supplied from an alternate current electric power terminal to a continuous current voltage for outputting; and a condenser or a battery charged by being fed with the voltage outputted from the electric power instrument for supplying an electric power for an air conditioner to count the power breakage time for a certain period during the power breakage.

Description

Electrostatic return operation device and method of air conditioner

The present invention relates to an electrostatic return operation apparatus and method for an air conditioner which automatically operates when a power failure time is short, and maintains operation even when the power failure is continued for a predetermined time.

In general, an air conditioner includes a heating device that warms indoor cold air and supplies it to a room, and a cooling device that supplies cold indoor hot air to a room.

In addition, there is also a cooling and heating device that combines the cooling function and the heating function, a situation that includes a clean function for cleaning the contaminated indoor air.

FIG. 1 shows an indoor unit of an air conditioner (commonly referred to as an air conditioner) that performs an air conditioning function among the air conditioners described above.

Of course, the air-conditioning device of course includes an outdoor unit not shown.

As shown in FIG. 1, reference numeral 1 denotes an indoor main body (hereinafter, referred to as an indoor unit) of an air conditioner, and an inlet 3 for sucking indoor air is formed on the front of the indoor unit 1, In the lower part of the front surface of the indoor unit 1, a discharge port 5 for discharging air (cold or warm air) heat-exchanged by an indoor heat exchanger to be described later is formed.

In addition, a remote control signal receiver 7 for receiving a remote control signal transmitted from a remote controller 9 (hereinafter referred to as a remote controller) is provided on the right side of the discharge port 5, and the discharge port 5 is provided with the discharge port ( Wind vane 11 for adjusting the direction of the air discharged into the room through 5) is installed.

On the other hand, the remote control 9, the operation / stop, operation selection (automatic, cooling, dehumidification, blowing, heating, etc.) of the air conditioner, air volume selection (strong wind, weak wind, breeze, etc.), turbo, mild, temperature control, etc. A plurality of operation mode keys for input and a plurality of timer mode keys for inputting a current time, a simple reservation, a start / end reservation, and the like are provided.

FIG. 2 is a side cross-sectional view of the indoor unit of FIG. 1 in a state where the indoor unit is installed on a wall, and the same parts as in FIG.

As shown in FIG. 2, the inside of the indoor unit 1 has a straight shape at the rear side of the intake port 3 so as to heat-exchange the indoor air sucked through the intake port 3 to cold or warm air by the latent heat of evaporation of the refrigerant. An indoor heat exchanger (15) is installed, and at the rear lower portion of the indoor heat exchanger (15), the air is sucked into the indoor air through the intake port (3) and at the same time, the air heat exchanged in the indoor heat exchanger (15) is discharged. An indoor fan 17 for discharging into the room through (5) is provided.

In addition, a duct member 19 is installed inside the indoor unit 1 to guide the flow of air sucked through the suction port 3 and discharged to the discharge port 5, and the indoor heat exchanger 15 is provided. The lower portion of the water in the air generated by the mixing of the air and the indoor air discharged when the indoor air sucked through the inlet (3) by the cold or warm air in the indoor heat exchanger 15, that is, defrost water Is collected in one place and the drain 21 for draining to the outside is provided.

In the air conditioner configured as described above, the user operates the remote controller 9 to press the operation / stop key (hereinafter referred to as the operation key), and then the desired operation mode (for example, cooling) and the set temperature (Ts) and When the setting wind is input, the remote control signal corresponding to the key input is encoded by a predetermined protocol, and the encoded signal is modulated to transmit an infrared signal.

When the infrared signal is transmitted from the remote control unit 9, the remote control signal receiving unit 7 of the indoor unit 1 receives it, converts it into an electric signal, and demodulates the converted electric signal to start operation of the indoor unit 1. First, the indoor fan 17 rotates according to the set air volume, and the indoor air starts to be sucked into the indoor unit 1.

At this time, when the temperature of the indoor air sucked into the indoor unit 1 is detected by a temperature sensor (not shown) in the indoor unit 1, the indoor unit 1 transmits the set temperature Ts and the room temperature Tr transmitted from the remote controller 9. The compressor is turned on when the room temperature Tr is higher than the set temperature Ts.

When the compressor is turned on, the indoor heat exchanger 15 is cooled according to the circulation of the refrigerant, so that the indoor air sucked into the indoor unit 1 is heat-exchanged with cold air while passing through the indoor heat exchanger 15 to guide the duct member 19. Received and discharged into the room through the discharge port 5, the cold air discharged through the discharge port 5 performs the cooling operation while the wind direction is adjusted according to the wind direction angle of the wind vane (11).

On the other hand, whenever the user sets or changes the operating conditions (operation mode, set temperature, set wind volume, set wind direction, etc.), the set or changed data is stored in the nonvolatile memory EEPROM. The operation of the air conditioner is started accordingly.

By the way, in the case of power failure recovery of the conventional air conditioner, if the power failure time is long and the user returns to the power failure, the air conditioner automatically operates according to the data stored in the EEPROM even if there is no user. There was a problem that causes unnecessary power waste.

Therefore, the present invention has been made in order to solve the above-mentioned problems, and constitutes an auxiliary power supply for supplying power for a predetermined time even in the event of a power failure, and automatically operates the operation mode before power failure when the power failure time is short. It is an object of the present invention to provide an apparatus and method for restoring an electrostatic conditioner of an air conditioner that maintains an operation stop even when a power failure is continued for a long time over a predetermined time and prevents the air conditioner from operating unnecessarily.

In order to achieve the above object, the air conditioner return operation apparatus of an air conditioner according to the present invention includes air having a memory means for storing an operation condition set by a user and a voltage sensing means for sensing a DC voltage output from a power supply means. In the conditioner, the auxiliary power supply unit is charged by receiving the voltage output from the power supply unit, and whether the power failure is determined according to the voltage sensing signal sensed by the voltage sensing unit, and the power supplied from the auxiliary power supply unit in case of power failure Control means for controlling the automatic operation and stop of the air conditioner by counting the power failure time, and driving means for driving and controlling the compressor, outdoor fan and indoor fan according to the control signal of the control means. It is done.

In addition, the electrostatic return operation method of the air conditioner according to the present invention is a method of operating an air conditioner in which air conditioning is performed by heat-exchanging air sucked through an inlet and then discharged through an outlet. A power failure judging step of detecting whether a power failure is detected by detecting a DC voltage output from the power failure step; a power failure time counter step of counting a power failure time by receiving power supplied from an auxiliary power supply means when the power failure determination step determines power failure; An automatic operation step of automatically operating the air conditioner in a mode before the power failure according to the data stored in the memory means if the power failure time countered in the time counter step is within a predetermined time; Operation stop step of maintaining the air conditioner to stop operating when It characterized by comprising.

1 is a perspective view showing an indoor unit of a general air conditioner,

2 is a side cross-sectional view of a conventional indoor unit installed on a wall surface;

3 is a control block diagram of an electrostatic return operation apparatus of an air conditioner according to an embodiment of the present invention;

4A and 4B are flowcharts showing the operation procedure of the power failure return operation control of the air conditioner according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: indoor unit 5: discharge port

11: wind vane 15: indoor heat exchanger

17: indoor fan 100: power supply means

101: voltage detection means 102: auxiliary power supply means

106: control means 108: memory means

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Since the air conditioner according to the present invention is the same as the conventional configuration shown in Figs. 1 and 2, the same name and the same reference numeral are specified to omit overlapping description.

As shown in FIG. 3, the power supply means 100 converts a commercial AC voltage supplied from an AC power supply terminal (not shown) into a predetermined DC voltage required for the operation of the air conditioner, and outputs the voltage. Detects a DC voltage output from the power supply means 100, and the auxiliary power supply means 102 supplies the power to the air conditioner to counter the power failure time for a predetermined time even during a power failure. Consists of a capacitor or a battery that is charged by receiving the voltage output from the.

The operation control means 104 is configured to input a plurality of operation modes (automatic, cooling, heating, dehumidification, blowing, etc.) of the air conditioner, set air volume, set wind direction, set temperature (Ts), and start / stop of the air conditioner. With a function key, the driving operation means 104 includes a key input portion 105 provided on the control panel of the indoor unit 1, and an infrared ray transmitted from the remote control unit 9 according to the key operation of the remote control unit 9. It is comprised by the remote control signal receiving part 7 which receives a signal.

Then, the control means 106 is applied to the DC voltage output from the power supply means 100 to initialize the air conditioner, as well as the air conditioning in accordance with the operation selection signal input by the operation operation means 104 As a microcomputer that controls the overall operation of the device, the control means 106 determines whether there is a power failure in accordance with the voltage sensing signal sensed by the voltage sensing means 101, and at the time of power failure from the auxiliary power supply means 102. The power supply is applied to count the blackout time.

The memory means 108 is an EEPROM which receives the control signal output from the control means 106 and stores the operating condition input by the driving operation means 104, and the indoor temperature detecting means 110 is the driving operation. The control means by detecting the temperature (Tr) of the indoor air sucked through the inlet 3 to control the room temperature to the temperature (Ts) set by the user by the means 104 to perform the heating and cooling operation of the air conditioner Output to 106.

In addition, the compressor driving means 112 is controlled according to the difference between the temperature Ts set by the user by the driving operation means 104 and the room temperature Tr sensed by the room temperature sensing means 110. Receiving a control signal output from the means 106, drive control of the compressor 30, the wind direction control means 114 is discharged through the discharge port 5 in accordance with the wind direction set by the user by the operation operation means 104 The wind vane 11 is moved by driving the stepping motor 115 by receiving the pulse signal output from the control means 106 to adjust the direction of the air.

The outdoor fan motor driving means 116 is controlled according to the difference between the temperature Ts set by the user by the driving operation means 104 and the room temperature Tr sensed by the indoor temperature detecting means 110. The outdoor fan 41 is driven by controlling the rotation speed of the outdoor fan motor so as to receive the control signal output from the means 106 and blow the air heat-exchanged in the outdoor heat exchanger 40 to the outside.

In addition, the indoor fan motor driving means 118 receives the control signal output from the control means 106 according to the air volume set by the user by the operation operation means 104 is heat exchanged in the indoor heat exchanger 15 By controlling the rotation speed of the indoor fan motor to blow air (cold or warm air) into the room, the indoor fan 17 is driven and controlled, and the display means 120 controls the driving means under the control of the control means 106. In addition to displaying the operation selection mode (automatic, cooling, dehumidifying, blowing, heating, etc.) inputted by 104, the operation state of the air conditioner is displayed.

Hereinafter, the operation effect of the electrostatic return operation apparatus and method of the air conditioner configured as described above will be described.

4A and 4B are flowcharts illustrating the operation procedure of the power failure return operation control of the air conditioner according to the present invention, in which S denotes a step STEP in FIGS. 4A and 4B.

First, when power is applied to the air conditioner, the power supply means 100 converts a commercial AC voltage supplied from an AC power terminal (not shown) into a predetermined DC voltage required for driving the air conditioner, thereby driving each circuit and control means ( Output to 106).

Therefore, in step S1, the DC voltage output from the power supply means 100 is received by the control means 106 to initialize the air conditioner.

At this time, in step S2, the user operates the key input unit 105 or the remote controller 9 and presses the operation / stop key, and then the operation mode of the desired air conditioner (for example, cooling), the set temperature (Ts), and the set air volume. And inputting the set wind direction, the remote controller 9 encodes the remote control signal corresponding to the key input by a predetermined protocol, modulates the encoded signal and transmits the infrared signal.

When the infrared signal is transmitted from the remote control unit 9, the remote control signal receiving unit 7 of the indoor unit 1 receives it and converts it into an electric signal, demodulates the converted electric signal to drive an operation selection signal and an operation start signal (hereinafter, , A driving signal) is input to the control means 106.

Therefore, in step S3, the control means 106 stores the driving conditions set by the user by the remote controller 9 in the memory means 108, and in step S4, the control means 106 performs the driving operation means 104. From the step S2, it is determined whether or not the driving signal is inputted. If the driving signal is not input (NO), the operation of step S2 or less is repeated while the air conditioner is kept in the operating standby state.

As a result of the discrimination in step S4, when the operation signal is input (YES), the control means 106 controls to drive the indoor fan 17 to perform the cooling operation of the air conditioner. The signal is output to the indoor fan motor driving means 118.

Therefore, the indoor fan motor driving means 118 turns on the indoor fan 17 by controlling the rotation speed of the indoor fan motor according to the air volume set by the user.

When the indoor fan 17 is turned on, indoor air starts to be sucked into the indoor unit 1, and at this time, the indoor temperature sensing means 110 detects the temperature Tr of the indoor air sucked into the indoor unit 1. .

At this time, in step S6, it is determined whether a predetermined time (delay time for protecting the compressor, about 3 minutes) has elapsed, and if the predetermined time has not elapsed (NO), step S6 or less until a predetermined time elapses. Repeat the operation.

As a result of the discrimination in step S6, when a predetermined time has elapsed (YES), the process proceeds to step S7 and the control means 106 stores analog data of the room temperature Tr detected by the room temperature sensing means 110. After converting to digital, it determines whether the room temperature (Tr) is greater than the set temperature (Ts) .If the room temperature (Tr) is not greater than the set temperature (Ts) (if NO), the outdoor unit operates. The process returns to the step S6 while waiting for the operation to repeat the operation of the step S6 or less.

As a result of the discrimination in step S7, when the room temperature Tr is larger than the set temperature Ts (YES), the process proceeds to step S8, whereby the control means 106 determines the indoor temperature Tr and the set temperature Ts. The driving frequency of the compressor 30 and the number of rotations of the outdoor fan motor are determined according to the difference, and control signals for driving the compressor 30 and the outdoor fan 41 are supplied to the compressor driving means 112 and the outdoor fan motor driving means ( 116).

Therefore, the compressor driving means 112 turns on the compressor 30 according to the operating frequency determined by the control means 106, and the outdoor fan motor driving means 116 outdoor according to the rotation speed determined by the control means 106. The fan 41 is turned on.

When the compressor 30 and the outdoor fan 41 are turned on, the indoor heat exchanger 15 is cooled according to the circulation of the refrigerant. In step S9, the indoor air sucked into the indoor unit 1 by the rotational force of the indoor fan 17. Is heat-exchanged with cold air while passing through the indoor heat exchanger (15) is guided by the duct member 19 is discharged to the room through the discharge port 5, the cold air discharged through the discharge port 5 is the wind vane (11) Air conditioning is controlled according to the wind direction angle of the room to perform the cooling.

In the cooling operation of the air conditioner as described above, in step S10 the DC voltage output from the power supply means 100 is sensed by the voltage sensing means 101 and the control means 106 is controlled by the voltage sensing means 101. If a power failure is detected according to the sensed voltage detection signal, and if it is not a power failure (NO), the process returns to step S9 to continue the cooling operation, and repeats the operations of step S9 and below.

As a result of the discrimination in step S10, in the case of power failure (YES), the control means 106 continues the operation of the air conditioner while storing the air conditioner operation state before the power failure in the memory means 108. Stop it.

Subsequently, in step S12, the timer circuit built in the control means 106 receives the power supplied from the auxiliary power supply means 102 and starts counting the power failure time. In step S13, it is determined whether the power failure has returned and the power failure If not (NO), the process returns to the step S12, and the operation of the step S12 or less is repeated while continuously counting the power failure time.

As a result of the discrimination in step S13, in the case of a power failure reset (YES), the flow advances to step S14, and the control means 106 passes the predetermined power failure time for a predetermined time (a predetermined time determined that the user is not indoors). Determine whether or not.

As a result of the determination in step S14, when a predetermined time has not elapsed (NO), it is determined that the user will be indoors due to a momentary power failure, and the flow proceeds to step S15, whereby the control means 106 stores the data stored in the memory means 108. In step S16, the air conditioner is automatically returned to the operation mode before the power failure in accordance with the stored data read.

On the other hand, when the determination result in step S14 indicates that the predetermined time has elapsed (YES), the blackout time lasts for a predetermined time or longer, and the user may not be indoors. Returns while maintaining operation of the air conditioner.

As described above, according to the apparatus and method for restoring an electrostatic conditioner of an air conditioner according to the present invention, if the outage is short, the auxiliary power supply means for supplying power for a predetermined time is configured. If the operation mode of the automatic operation and the power outage time lasts for a predetermined time or longer, there is an effect of preventing the air conditioner from unnecessary operation by maintaining the operation even when the power failure returns.

Claims (4)

In the air conditioner having a memory means for storing the operation conditions set by the user, and a voltage sensing means for detecting a DC voltage output from the power supply means, An auxiliary power supply unit charged with the voltage output from the power supply unit; It determines whether there is a power failure according to the voltage sensing signal sensed by the voltage sensing means, and at the time of power failure to control the automatic operation and stop of the air conditioner by counting the power failure time by receiving the power supplied from the auxiliary power supply means. Control means, And a driving means for driving and controlling the compressor, the outdoor fan, and the indoor fan according to the control signal of the control means. The method of claim 1, And the control means automatically operates the air conditioner in the mode before the power failure according to the data stored in the memory means when the power failure time is within a predetermined time. The method according to claim 1 or 2, And the control means maintains the air conditioner as the operation stop when the blackout time has elapsed for a predetermined time. In the operating method of the air conditioner for performing the air conditioning operation by heat-exchanging the air sucked through the inlet and then through the discharge port, An electrostatic discrimination step of determining whether a power failure is detected by detecting a DC voltage output from a power supply unit during the air conditioning operation; A blackout time counter step of counting a blackout time by receiving power supplied from the auxiliary power supply means when it is determined in the blackout discrimination step; An automatic operation step of automatically operating the air conditioner in the mode before the power failure according to the data stored in the memory means when the power failure time counted in the power failure time counter step is within a predetermined time; And an operation stop step of maintaining the air conditioner as an operation stop when the power failure time counted in the power failure time counter step passes a predetermined time.