KR20030000171A - Operating Method of Air Conditioner - Google Patents

Abstract

PURPOSE: A method for operating refrigerator with less noise is provided to reduce power consumption and noise. CONSTITUTION: A method comprises the steps of: a sleeping mode setting step(S1) allowing a user to set fixed time zone when the user opens a door of a refrigerator not so frequently as reference time zone for executing low noise operation; a sleeping mode starting step(S3) monitoring whether the reference time set by the user in the sleeping mode setting step is reached and starting sleeping mode, low noise operating mode, by reducing operating load of a compressor of the refrigerator when the reference time is reached; and a sleeping mode terminating mode(S5) terminating sleeping mode of the refrigerator when the reference time is completed.

Description

Operating Method of Air Conditioner

The present invention relates to a low noise operation method of a refrigerator, and in particular, a refrigerator to prevent noise by operating a low cooling power with low noise at a time when a person sleeps during a day or when a frequency of opening a refrigerator door is below a specific value. It relates to a low noise driving method.

In general, a refrigerator includes a refrigeration cycle as shown in FIG. 1, wherein the refrigeration cycle compresses a refrigerant in a low-temperature low-pressure gas state into a high-temperature high-pressure gas state, and the compressor 1. A condenser (2) connected to a discharge port of the condenser (2) for condensing the gas refrigerant, which has been hot and high pressure by the compressor (1), into a high pressure liquid state, and a capillary tube (3) for reducing the high pressure liquid refrigerant passing through the condenser (2) And an evaporator 4 which generates a cold air by evaporating the liquid refrigerant decompressed by the capillary tube 3 while absorbing heat, and the cold air generated by the evaporator 4 near the evaporator 4. Circulation fans 5 and 6 are installed to circulate into the furnace.

The cool air generated in the cooler chamber of the refrigerator by the refrigerant cycle is supplied to the refrigerating compartment and the freezing compartment by rapid rotation of the freezer compartment fan and the machine compartment fans 5 and 6 under the control of a control unit (not shown), and is then heat-exchanged in the refrigerator. It returns to the cooler chamber, cools down again, and repeats the circulation supplied to each chamber again.

The temperature in the refrigerator varies depending on the temperature of the installation place of the refrigerator, opening / closing the door, quantity of food, and the state of putting the food. The temperature does not fluctuate greatly, resulting in a supercooled state by a fixed compressor operation.

However, in the conventional refrigerator, since the fan and the compressor are driven as a means for cooling the inside of the refrigerator by discharging cold air around the evaporator into the freezer compartment and the refrigerating chamber, the noise of the refrigerator is greatly generated, and the supercooling operation is performed at a time when the door opening frequency of the refrigerator is small. There is a problem with this being performed.

The present invention has been made to solve the above-mentioned problems of the prior art, the object of which is to reduce the power consumption and low noise operation by the low-temperature operation during the time when the sleep time or the door opening frequency of a person sleeps during the day or less To provide a low noise operation method of the refrigerator capable of performing.

1 is a block diagram showing a typical refrigeration cycle,

2 is a block diagram showing a low noise operating device of a refrigerator according to the present invention;

3 is a flowchart illustrating a low noise operation method of a refrigerator according to the present invention.

<Explanation of symbols on main parts of the drawings>

11: door opening and closing detection unit 12: temperature detection unit

13 key operation unit 14 timer

15 compressor 16 control unit

According to a feature of the low noise operation method of the refrigerator according to the present invention for solving the above problems, a sleep mode setting step of the user to set a specific time zone with less use of the refrigerator as a reference time for performing a low noise operation; A sleep mode initiation step in which the user enters the sleep mode in a low noise operation state by monitoring whether the user reaches a set reference time in the sleep mode setting step and reducing the compressor operation amount of the refrigerator when the user enters the reference time; In the sleep mode entering step, the sleep mode canceling step of canceling the sleep mode state of the refrigerator is terminated by the end of the reference time set by the user during the low noise operation of the compressor of the refrigerator.

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

Figure 2 is a low noise operation apparatus of the refrigerator according to the present invention, the door opening and closing detection unit 11 for detecting whether the door opening and closing of the refrigerator, the temperature detection unit 12 for detecting the temperature of the freezer compartment of the refrigerator, and the user's operation command A key operation unit 13 for outputting a key signal according to the present invention, a timer 14 for counting a sleep time set by a user through the key operation unit 13, and a corresponding sleep time reached through the timer 14; Control unit 16 for controlling the entire system of the refrigerator in the sleep mode at a time when the door opening per hour detected through the door opening / closing detection unit 11 is less than a predetermined number of times, and the control unit 16 controls the In order to drive a refrigeration cycle, a compressor 15 for compressing a low-temperature low-pressure gas refrigerant in a refrigerator into a high-temperature high-pressure gas refrigerant, and a high-temperature, high-pressure gas refrigerant generated by the compressor 15 may include a condenser (not shown) and a capillary tube ( Shown), is converted through an evaporator (not shown) to the low-temperature low-pressure gas refrigerant is composed of those that the converted gas refrigerant discharged into the refrigerator fan (not shown).

The control unit 16 is the sleep time set through the key control unit 13 by the user's selection or the time that the door opening frequency of the refrigerator detected through the door opening and closing detection unit 11 is maintained below a certain number of times. Switch control to allow the refrigerator to operate in the sleep mode.

In the sleep mode of the refrigerator, when the door opening frequency of the refrigerator is less than or equal to a predetermined number of times per hour, and during a specific time period when the use of the refrigerator is low, such as the sleep time of the user, the compressor is operated in a low cooling operation with low noise. At this time, the compressor controls the cooling power of the refrigerator by controlling the rpm in the case of a brushless DC variable speed compressor and the stroke of the piston in the case of a linear compressor.

Referring to the operation of Figure 3 the low noise operation method of the present invention refrigerator configured as described above are as follows.

The first step is to set the reference time so that the low noise operation can be performed by reducing the rotational speed of the compressor 5 in the refrigerator at the time when the user sleeps or when the frequency of opening the refrigerator door per hour is lower than a specific value. In step 2, the timer 4 of the refrigerator detects whether the reference time set by the user in the first step is reached (see S1 and S2).

For example, when the user sets the sleep time to sleep from 11 pm to 8 am and sets the number of times the refrigerator door is opened three times or less per hour, the second step (S2) Monitor whether one or more conditions of the multiple reference times in S1 are met.

If the time detected in the second step S2 is not reached, the timer 4 of the refrigerator is counted until the set time is reached, and the detection time of the second step S2 is the first step S1. In the third step, when the set time is reached, the rotational speed of the compressor 5 of the refrigerator is reduced to enter the sleep operation mode (see S3).

In the fourth step, the refrigerator determines whether the sleep time or the number of door openings reaches a time when the refrigerator is in the sleep operation mode or exceeds the reference value, and reaches the sleep time set by the user or the low noise operation time according to the door opening and closing. Maintain the sleep mode (see S4).

If it is determined that the determination result of the fourth step (S4) has reached the reference time, the fifth step releases the sleep operation mode of the refrigerator and returns to the original driving pattern (see S5).

As described above, in the low noise operation method of the refrigerator according to the present invention, when the door of the refrigerator is opened, warm air from the outside of the refrigerator is introduced to increase the temperature in the refrigerator rapidly, but when the frequency of opening and closing the refrigerator door is small, the temperature change in the refrigerator is small. By reducing the rotational speed of the motor, low noise, low power operation can be performed.

The low noise operation method of the present invention refrigerator configured as described above operates the compressor in a low noise state by switching the refrigerator to a sleep mode at a specific time when the use of the refrigerator is low, thereby reducing the power consumption of the refrigerator and reducing the user's satisfaction due to low noise operation. There is an effect that can be improved.

Claims (3)

A sleep mode setting step of setting, by the user, a specific time zone with less use of the refrigerator as a reference time for performing a low noise operation; A sleep mode initiation step in which the user enters the sleep mode in a low noise operation state by monitoring whether the user reaches a set reference time in the sleep mode setting step and reducing the compressor operation amount of the refrigerator when the user enters the reference time; Low noise operation of the refrigerator, characterized in that the sleep mode is terminated by the end of the reference time set by the user during the low noise operation of the compressor of the refrigerator in the sleep mode initiation step is terminated. Way. The method of claim 1, The reference time for switching to the sleep mode is a low noise operation method of the refrigerator, characterized in that for setting the time zone during which the use of the refrigerator is reduced by the user takes a sleep. The method according to claim 1 or 2, The reference time for switching to the sleep mode is a low-noise operation method of the refrigerator, characterized in that for setting the time when the opening frequency of the refrigerator door per hour or less.