KR19990035505A - How to control the low noise operation of the refrigerator - Google Patents

Abstract

The present invention relates to a low noise operation control method of a refrigerator capable of performing quiet operation control with low noise in a sleep mode selected by a user's preference among a predetermined number of sleep modes set during a quiet operation control.

The present invention relates to a sleep mode control method for quietly controlling quiet operation in a refrigerator having a compressor for compressing a low temperature low pressure gas refrigerant into a high temperature high pressure gas refrigerant to activate a circulation of the refrigerant. The first sleep mode in which the mode key input is turned off during the preset sleep mode execution time to perform the sleep mode, and the second sleep mode and sleep mode in which the compressor is controlled to operate at the first preset operation rate during the sleep mode execution time. Determining whether the third sleep mode controls the operation of the compressor at a predetermined second operation rate lower than the first operation rate during the execution time; and performing a sleep mode selected by the determined user, including: Provides convenience to the user by widening the user's choice when the mode is executed, and effectively operates the refrigerator. Which will be controlled by the enemy.

Description

How to control the low noise operation of the refrigerator

The present invention relates to a low noise operation control method of a refrigerator, and in particular, to provide a sleep mode selected by a user to select a sleep mode for controlling quiet operation with low noise to perform a quiet control in a sleep mode selected by a user. It relates to a low noise operation control method of a refrigerator.

In general, a refrigeration cycle of a refrigerator includes a compressor that compresses and outputs a low-temperature, low-pressure gaseous refrigerant, and a condenser and a condenser that cools, condenses, and liquefies the high-temperature, high-pressure gaseous refrigerant from the compressor by external air. It is made through a capillary tube for depressurizing and outputting a high pressure liquid refrigerant from the capillary tube and an evaporator for absorbing and cooling heat by evaporating to a low temperature in a low pressure state. In particular, the fan-cooling refrigerator includes a fan for discharging cold air, and discharges cold air around the evaporator to the freezer compartment and the refrigerating compartment to cool the inside of the refrigerator, and performs temperature control as a driving / stop control of the fan and the compressor. do.

On the other hand, among these fan-cooling refrigerators, which convectively cool the air around the evaporator by a fan, the refrigerator that controls the temperature centered on the temperature of the refrigerator compartment has one fan in the freezer compartment and detects it in the refrigerator compartment. In order to liquefy the refrigerant in the gas state and the fan that discharges the cold air around the set temperature, the compressor controls the low pressure low temperature refrigerant gas into the high pressure high temperature refrigerant gas to drive and discharge the cold air around the evaporator to the freezer compartment and the refrigerating compartment. Keep your refrigerator at the right temperature.

In addition, the refrigerator that controls the temperature centering on the temperature of each of the freezer compartment and the refrigerating compartment independently drives and controls two fans for discharging cold air into the freezer compartment and the refrigerating compartment, and controls the compressor to control the cold air around the evaporator to the freezer compartment and the refrigerator compartment. By discharging, the temperature of the refrigerator is maintained at an appropriate temperature.

On the other hand, there is a problem that the noise is generated due to the operation of the refrigerator described above, the noise is mainly caused by the drive of the compressor, and the noise is relatively loud at night, especially in quiet surroundings.

Therefore, in order to reduce the noise, the user has been sought to provide a quiet operation control by providing a predetermined number of sleep modes to suit the user's taste in the sleep mode that selectively restricts the driving of the compressor.

SUMMARY OF THE INVENTION An object of the present invention is to provide a low noise operation control method of a refrigerator, which enables quiet operation control to be performed in a quiet mode in a sleep mode selected by a user's preference among a predetermined number of sleep modes set in a sleep mode for quiet operation control in a refrigerator. It is.

A low noise operation control method for a refrigerator according to the present invention is a sleep mode control method for quiet operation control with low noise in a refrigerator having a compressor for compressing a low temperature low pressure gas refrigerant into a high temperature high pressure gas refrigerant to activate a circulation of the refrigerant. If there is a sleep mode key input, the input sleep mode key input turns off the compressor for a preset sleep mode execution time to perform a sleep mode, and operates the compressor at a preset first operation rate during the sleep mode execution time. Determining whether the third sleep mode controls the operation of the compressor at a predetermined second operation rate lower than the first operation rate during the control mode of the second sleep mode and the sleep mode; and performs the sleep mode selected by the determined user Characterized in that it comprises a step.

In addition, the second and third sleep modes are characterized in that the compressor is repeatedly driven on and off in response to the first and second operation rates respectively set during the set sleep mode execution time.

1 is a schematic block diagram of a refrigerator employed in accordance with a preferred embodiment of the present invention.

Figure 2 is a flow diagram illustrating a low noise operation control process of the refrigerator according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

10: key input unit 20,30: first and second temperature detection unit

40: microcomputer 50,70: first and second fan drive unit

60, 80: first and second fan 90: compressor drive unit

100 compressor 110 display unit

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

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

FIG. 1 is a schematic block diagram of a refrigerator according to a preferred embodiment of the present invention. The key input unit 10, the first and second temperature detection units 20 and 30, the microcomputer 40, and the first and second fan driving units ( 50 and 70, first and second fans 60 and 80, a compressor driving unit 90, a compressor 100, and a display unit 110.

In this configuration, the key input unit 10 is a key input means for selectively switching the sleep mode in which the user quietly operates, and includes a sleep mode key, a sleep mode selection key, and the like and corresponds to a key operation of the user. The signal is applied to the microcomputer 40 which will be described later.

The first temperature detector 20 is installed at a predetermined position in the refrigerating compartment to detect the room temperature of the refrigerating compartment to describe the detected refrigerating chamber temperature (generally, a DC value voltage value). Analog to Digital) port.

In addition, the second temperature detector 30 is installed at a predetermined position in the freezer compartment to detect the room temperature of the freezer compartment and applies the detected freezer compartment temperature to the A / D port of the microcomputer 40.

Meanwhile, the microcomputer 40 is applied to the respective A / D ports through the first and second temperature detectors 20 and 30 to maintain the appropriate temperature of the refrigerating compartment and the freezing compartment. In order to independently drive and control the first and second fans 60 and 80 which will be described later in comparison with each preset reference temperature, the compressor 100 is typically a second fan 80 for blowing cold air into the freezer compartment. The normal driving mode for controlling the driving in accordance with the driving of the control.

In addition, the microcomputer 40 may include a first sleep mode that turns off the driving of the compressor 100 for a preset sleep mode execution time (for example, 30 minutes), and a preset first operation of the compressor 100 during the sleep mode execution time. The second sleep mode for controlling the operation at one operation rate (for example, 4 minutes on and 6 minutes off), and the second operation rate (for example, 2 minutes on the compressor 100 during the sleep mode execution time). And a third sleep mode for controlling operation for 8 minutes (off), and performing and controlling the sleep mode selected based on the sleep mode key signal and the sleep mode selection key signal from the key input unit 10, and displaying the sleep mode. Control 110 to display.

The first fan driver 50 outputs a predetermined driving signal to the first fan 60 under the control of the microcomputer 40 using a driving element, a relay, and the like, and the first fan 60 is dedicated to the refrigerator compartment. The fan is driven on the basis of the drive signal from the first fan driver 50 to discharge cold air around the evaporator (not shown) into the refrigerating chamber.

In addition, the second fan driver 70 outputs a predetermined driving signal to the second fan 80 under the control of the microcomputer 40 using a driving element, a relay, and the like, and the second fan 80 is dedicated to the freezer compartment. The fan is driven on the basis of the drive signal from the second fan driver 70 to discharge cold air around the evaporator (not shown) into the freezer compartment.

Meanwhile, the compressor driver 90 outputs a predetermined drive signal to the compressor 100 under the control of the microcomputer 40 using a drive element and a relay, and the compressor 100 is vaporized in the aforementioned refrigeration cycle. As a preliminary step for liquefying and reusing the used refrigerant, the refrigerant gas of low temperature and low pressure from the evaporator, not shown, is compressed and converted into a refrigerant gas of high temperature and high pressure, and outputted to a condenser, not shown.

In addition, the display unit 110 selectively displays the sleep mode under the control of the microcomputer 40 using a light emitting diode (LED).

Next, a low noise operation control process of the refrigerator in the refrigerator according to the preferred embodiment of the present invention including the above-described component will be described in detail with reference to the flowchart of FIG. 2.

First, in the normal operation mode, the microcomputer 40 has the first fan 60 when the refrigerator compartment temperature detected based on the first temperature detector 20 is equal to or lower than a predetermined refrigerator compartment lower limit temperature (for example, −1 ° C.). ) Is turned off, and when the detected refrigerator compartment temperature is higher than the preset refrigerator compartment proper upper limit temperature (for example, 0,65 ° C.), the first fan 60 is driven on to cool the air around the evaporator (not shown). Blow into the air.

Moreover, when the freezer compartment temperature detected based on the 2nd temperature detector 30 is below the preset freezer compartment lower limit temperature (for example, -22.5 degreeC), the 2nd fan 80 is driven off and the detected freezer compartment temperature is detected. Is higher than the preset freezer proper upper limit temperature (for example, −17.5 ° C.), the second fan 80 is driven on to blow cold air around the evaporator to the freezer compartment, and the compressor 100 supplies the second fan 80. Operation of the refrigerator is performed by subordinate to driving on / off of step (step 200).

In this case, the user manipulates the sleep mode key of the key input unit 10 and the sleep mode selection key for selecting the sleep mode to switch to the sleep mode in which the user performs a quiet operation for sleeping.

Accordingly, the microcomputer 40 determines whether the sleep mode key signal is applied from the key input unit 10 (step 202), and if the sleep mode key signal is applied, the microcomputer 40 selects among the preset first, second, and third sleep modes. The sleep mode selection key signal is determined whether a signal is applied to confirm the sleep mode selected by the user (step 204).

In this case, the sleep mode may not be reselected each time the sleep mode is performed, but may be set through a separate routine to check the preset sleep mode.

Next, if the confirmed sleep mode is the first sleep mode, the compressor 100 is forcibly driven off, and the display unit 110 is controlled and displayed as the first sleep mode (step 206), and when the preset sleep mode execution time elapses, (Step 208), the compressor 100 is normally operated to release the sleep mode (step 210).

On the other hand, if the sleep mode identified in step 204 described above is the second sleep mode, the compressor 100 is driven off and the display unit 110 is controlled to display the second sleep mode (step 212), and the preset first Compressor off time of the operation rate For example, it is determined whether 6 minutes have elapsed (step 214), and if it has elapsed, the compressor 100 is driven again (step 216).

Next, it is determined whether the compressor on time of the first operation rate, for example, 4 minutes has elapsed (step 218), and if so, it is determined whether or not the predetermined sleep mode execution time, for example, 30 minutes has elapsed (step 220). If it has not elapsed, the process proceeds to the above-described step 212, and the compressor 100 is driven off again, and the compressor 100 is repeatedly driven on and off at the first operation rate.

On the contrary, when the sleep mode execution time elapses in the aforementioned step 220, the compressor 100 is normally operated and the display unit 110 is controlled to release the second sleep mode display (step 222).

Meanwhile, if the sleep mode selected by the user in the above-described step 204 is the third sleep mode, first, the compressor 100 is driven off and the second sleep mode is similar to the above-described step 212 through 222. The display unit 110 is controlled and displayed (step 224), and it is determined whether or not the compressor off time, for example, 8 minutes, has elapsed at the second operation rate which is lower than the first operation rate for quiet control (step 226). If it has passed, the compressor 100 is driven on again (step 228).

Next, it is determined whether the compressor on time of the second operation rate, for example, 2 minutes has elapsed (step 230), and if it has elapsed, it is determined whether the preset sleep mode execution time, for example, 30 minutes has elapsed (step 232). If not, the flow proceeds to the above-described step 224 to drive off the compressor 100 again to repeat the on / off operation of the compressor 100 at the second operation rate.

On the contrary, when the sleep mode execution time elapses in the aforementioned step 232, the compressor 100 is normally operated and the display unit 110 is controlled to release the third sleep mode display (step 234).

On the other hand, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the spirit of the present invention.

As described above, according to the present invention, when switching to the sleep mode for quiet operation control in the refrigerator, by controlling a predetermined number of sleep modes according to the user's preference, the user's choice is widened to suit the user's taste. It is possible to provide convenience for performing the sleep mode.

Claims (2)

A sleep mode control method for quiet operation control with low noise in a refrigerator having a compressor for compressing a low temperature low pressure gas refrigerant into a high temperature high pressure gas refrigerant to activate a circulation of the refrigerant. If there is a sleep mode key input, the input sleep mode key input is driven to turn off the compressor for a preset sleep mode execution time to perform the sleep mode, and the compressor is operated at the first preset operation rate during the sleep mode execution time. Determining whether the compressor is in the third sleep mode for controlling the operation at the second operation rate lower than the first operation rate during the second sleep mode for controlling the operation and the sleep mode execution time; And controlling the sleep mode selected by the determined user. The refrigerator according to claim 1, wherein the second and third sleep modes repeatedly control the compressor on / off for a predetermined number of times based on the first and second operation rates during the sleep mode execution time. Low noise driving control method.