CN105758077A - Refrigerator and control method thereof - Google Patents

Abstract

The invention provides a refrigerator and a control method thereof. The refrigerator comprises a refrigerating system and a freezing fan, wherein the refrigerating system comprises a compressor, a condenser and an evaporator which are connected; the freezing fan is used for conveying cold air to the inside of a freezing chamber of the refrigerator. The control method of the refrigerator comprises the following steps: starting the compressor and then timing the running time of the compressor, and starting the freezing fan after the compressor runs for a first preset time. The control method of the refrigerator is used for separating the starting time of the compressor from the starting time of the freezing fan, so that the noise superposition caused by simultaneously starting the compressor and the freezing fan is avoided; the effect of reducing certain noise can be achieved. In addition, after the compressor is started and runs for the first preset time, the temperature of the evaporator is reduced; the freezing fan is started at the moment, a refrigerating cycle in the refrigerator can be gradually built; the refrigerating system of the refrigerator is capable of fast refrigerating.

Description

Refrigerator and its control method

technical field

The invention relates to the field of refrigerators, in particular to a refrigerator and a control method thereof.

Background technique

The principle of the air-cooled refrigerator is to use cold air circulation for refrigeration. When the high-temperature air in the refrigerator compartment flows through the built-in evaporator (set at a distance from the refrigerator compartment), the air and the evaporator directly exchange heat, and the temperature of the air decreases. The cooled air is blown into the refrigerator compartment by the fan again. The air-cooled refrigerator is to reduce the temperature of the refrigerator compartment through this continuous heat exchange method.

In the current air-cooled refrigerator, when the refrigerator compressor is turned on for cooling, the fan is also turned on correspondingly to form the air circulation inside the refrigerator. However, when the fan and compressor are started at the same time, the noise will be superimposed and increase, which will affect the user experience.

Contents of the invention

In view of the above problems, the present invention is proposed to provide a refrigerator and a control method thereof that overcome the above problems or at least partly solve the above problems.

A further object of the present invention is to reduce refrigerator noise.

Another further object of the present invention is to increase the cooling speed of the refrigeration system.

Another further object of the invention is to save energy.

According to one aspect of the present invention, the present invention provides a control method for a refrigerator, the refrigerator includes a refrigeration system connected by a compressor, a condenser, and an evaporator, and a refrigeration fan for delivering cold air to the inside of the freezer compartment of the refrigerator, And the control method of the refrigerator includes: starting the compressor to run the refrigeration system; timing the running time of the compressor; and turning on the refrigeration fan after the compressor runs for a first preset time, so as to establish a cold air cycle inside the refrigerator.

Optionally, after turning on the refrigeration fan, it also includes: when the internal temperature of the freezing compartment reaches the preset compressor stop temperature, turn off the compressor and stop refrigeration; count the closing time of the compressor; and when the compressor stop reaches After the second preset time, the refrigeration fan is turned off.

Optionally, the refrigerator is also provided with a cooling fan for dissipating heat from the condenser and the compressor, and before starting the compressor, it also includes:

Turn on the cooling fan and execute the step of turning on the compressor after the cooling fan is started for a third preset time, so as to establish a cooling cycle in advance.

Optionally, the cooling fan is turned off while the compressor is turned off.

Optionally, before the step of turning on the cooling fan, the method further includes: turning on the cooling fan when the temperature inside the freezing compartment reaches a preset cooling start temperature.

According to another aspect of the present invention, a refrigerator is also provided, including: a refrigeration system, which is composed of a compressor, a condenser, and an evaporator connected in sequence; a cooling fan, which generates heat generated by the compressor and the condenser to dissipate heat. an airflow; and a freezing fan, which generates airflow sent to the inside of the freezer compartment of the refrigerator after exchanging heat with the evaporator, and is configured to be turned on after the compressor is turned on for a first preset time.

Optionally, the above-mentioned refrigerator further includes: a temperature detection device disposed inside the freezer compartment and configured to detect the temperature inside the freezer compartment; stop when the compressor stop temperature; the refrigeration fan is also configured to turn off after the compressor stops for a second preset time.

Optionally, the cooling fan is further configured to be continuously turned on for a third preset time before the compressor is turned on for cooling, so as to establish a cooling cycle in advance.

Optionally, the cooling fan is also configured to be turned off when the compressor is stopped.

Optionally, the cooling fan is further configured to be turned on when the temperature inside the freezing compartment is higher than a preset cooling start temperature.

The invention provides a refrigerator and a control method thereof, wherein the refrigerator includes a refrigeration system composed of a compressor, a condenser, and an evaporator connected together, and a freezing fan used to deliver cold air to the interior of the freezer compartment of the refrigerator, and the control method of the refrigerator Including: counting the running time of the compressor after starting the compressor, and starting the refrigeration fan after the compressor runs for the first preset time. The refrigerator control method of the present invention separates the starting time of the compressor and the refrigerating fan, prevents noise superposition caused by simultaneous starting of the two, and can achieve a certain noise reduction effect. In addition, after the compressor starts to reach the first preset time, the temperature of the evaporator has dropped. At this time, the refrigeration fan is restarted to establish a refrigeration cycle in the refrigerator, which is beneficial to the rapid refrigeration of the refrigerator refrigeration system.

Furthermore, in the control method of the present invention, after the compressor stops, the refrigeration fan continues to work, prolonging the air circulation time inside the refrigerator, and making full use of the remaining cooling capacity of the evaporator. After the compressor stops for the second preset time, the refrigeration fan is turned off, and the air supply to the refrigeration compartment is stopped. The refrigerator control method of the present invention makes full use of the remaining cooling capacity of the evaporator and saves energy.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic side view of a refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic front view of the press chamber of the refrigerator shown in Fig. 1;

3 is a schematic diagram of a refrigerator control method according to another embodiment of the present invention; and

FIG. 4 is a flowchart of a refrigerator control method according to another embodiment of the present invention.

detailed description

The present invention firstly provides a refrigerator. FIG. 1 is a schematic side view of a refrigerator according to an embodiment of the present invention. FIG. 2 is a front schematic diagram of a compressor compartment of the refrigerator shown in FIG. The refrigerator 30 and the evaporator 40 are connected to form a refrigeration system, a freezer compartment 10, a freezer compartment 11, a cooling fan 60 and a freezing fan 50. Wherein, the compressor 20, the condenser 30, and the cooling fan 60 are installed in the compressor compartment.

The cooling fan 60 generates an airflow that dissipates the heat generated by the compressor 20 and the condenser 30. In this embodiment, the cooling fan 60, the compressor 20 and the condenser 30 are preferably arranged on the same straight line, and, The condenser 30 is disposed between the compressor 20 and the cooling fan 60 to facilitate the cooling fan 60 to dissipate heat from the compressor 20 and the condenser 30 . The refrigerating fan 50 generates an airflow sent into the refrigerating compartment 10 of the refrigerator after exchanging heat with the evaporator 40 , and is configured to be turned on after the compressor 20 is turned on for a first preset time. In some optional embodiments, the cooling fan 60 may also be arranged between the compressor 20 and the condenser 30 .

In this embodiment, the compressor 20 is started, and the entire refrigeration system starts to refrigerate. When the compressor 20 is just started, the temperature of the evaporator 40 is high. During the first preset time after the compressor 20 is started, the refrigerating fan 50 is turned off to wait for the temperature of the evaporator 40 to drop. After the compressor 20 starts to reach the first preset time, the temperature of the evaporator 40 drops, and at this time, the refrigeration fan 50 is restarted to establish a refrigeration cycle in the refrigerator. In this embodiment, the first preset time may be the time required to wait for the temperature of the evaporator 40 to drop, preferably 1 min. This pre-set start mode separates the start time of the compressor 20 and the refrigeration fan 50 to prevent the noise superposition caused by the simultaneous start of the two, which can achieve a certain noise reduction effect and is conducive to the rapid cooling of the refrigerator refrigeration system.

The refrigerator in this embodiment also includes two temperature detection devices 70 . They are installed in the freezer compartment 10 and the refrigerated compartment 11 respectively, and are configured to detect the temperatures of the freezer compartment 10 and the refrigerated compartment 11 . And the compressor 20 is also configured to stop when the temperature inside the freezing compartment 10 is lower than a preset compressor stop temperature. The refrigeration fan 50 is also configured to be turned off after the compressor 20 is stopped for a second preset time. The aforementioned compressor shutdown temperature is the preset internal temperature of the freezing compartment 10, which can be preset by the user. In addition, the refrigerator in this embodiment further includes a refrigeration damper 80 disposed in the middle of the air duct of the refrigerator. When the internal temperature of the refrigerated compartment 11 does not reach the preset cooling temperature, the refrigerated damper 80 and the freezing fan 50 are opened, and the cold air around the evaporator 40 is used to cool the refrigerated compartment 11 . When the internal temperature of the refrigerated compartment 11 reaches the preset cooling temperature, the refrigerated damper 80 is closed to stop cooling the refrigerated compartment 11 .

When the internal temperature of the freezer compartment 10 of the refrigerator in this embodiment is lower than the preset compressor stop temperature, the compressor 20 can be stopped to stop cooling to save energy. After the compressor 20 stops, the temperature of the evaporator 40 will not rise immediately, and it still stores a certain amount of cooling capacity. At this moment, the refrigerating fan 50 continues to work, prolonging the circulation time of the airflow inside the refrigerator, and making full use of the remaining cooling capacity of the evaporator 40 . After the stop of the compressor 20 reaches the second preset time, the evaporator 40 has risen to a higher temperature. At this time, the refrigeration fan 50 is turned off, and the air supply to the freezing compartment 10 is stopped. Due to the fact that the closing time of the compressor 20 and the refrigerating fan 50 are separated by this pre-set order closing mode, the noise superposition caused by the simultaneous closing of the two can be prevented, and the effect of reducing a certain noise can be achieved, and at the same time, it is beneficial to make full use of the remaining power of the evaporator 40. Cooling capacity, saving energy. The above-mentioned second preset time is the time required for the evaporator 40 to rise to a certain temperature, preferably 1 min.

The cooling fan 60 is also configured to be continuously turned on for a third preset time before the compressor 20 is turned on for cooling, so as to establish a cooling cycle in advance. When the refrigerator of this embodiment is started, the cooling fan 60 is started before the compressor 20, and runs independently for a third preset time, so as to advance the heat dissipation to the condenser 30 and the compressor 20, and establish a heat dissipation cycle. In addition, the starting times of the compressor 20 and the cooling fan 60 are separated to prevent noise superposition caused by simultaneous starting of the two. The above-mentioned third preset time is preferably 30s.

The cooling fan 60 is also configured to be turned off while the compressor 20 is shut down. After the compressor 20 is shut down, it will take a certain amount of time to start up next time. Due to the long shutdown time, the compressor 20 and the condenser 30 can dissipate heat through natural cooling, and the cooling fan 60 is turned off when the compressor 20 is shut down to save energy.

The cooling fan 60 is also configured to be turned on when the temperature inside the freezing compartment 10 is higher than the preset cooling start temperature. When the internal temperature of the freezer compartment 10 is higher than the preset cooling start temperature, the refrigerator needs to be turned on for cooling. At this time, the cooling fan 60 is turned on first. The above-mentioned cooling opening temperature may be the highest temperature allowed by the freezing compartment 10 under the premise of ensuring the freshness of food.

The present invention also provides a refrigerator control method, which can be executed by the refrigerator in any of the above embodiments. Fig. 3 is a schematic diagram of a refrigerator control method according to another embodiment of the present invention. The control method of this embodiment may generally include:

Step S302, start the compressor 20 to make the refrigeration system run;

Step S304, timing the running time of the compressor 20;

Step S306, after the compressor 20 runs for a first preset time, the refrigeration blower 50 is turned on, so as to establish a circulation of cold air inside the refrigerator.

In this embodiment, when the compressor 20 is just started, the temperature of the evaporator 40 is relatively high, and it takes a certain amount of time for the entire refrigeration system to establish refrigeration from a standstill.

After the compressor 20 is started, the running time of the compressor 20 is counted. During the first preset time after the compressor 20 is started, the refrigerating fan 50 is turned off to wait for the temperature of the evaporator 40 to drop.

After the compressor 20 starts to reach the first preset time, the temperature of the evaporator 40 has dropped, and at this time the refrigeration fan 50 is restarted to gradually establish a refrigeration cycle in the refrigerator. In this embodiment, the first preset time may be the time required to wait for the temperature of the evaporator 40 to drop, preferably 1 min. This pre-set start mode separates the start time of the compressor 20 and the refrigeration fan 50 to prevent the noise superposition caused by the simultaneous start of the two, which can achieve a certain noise reduction effect and is conducive to the rapid cooling of the refrigerator refrigeration system.

FIG. 4 is a flowchart of a refrigerator control method according to another embodiment of the present invention. The control method performs the following steps in sequence:

In step S402, it is judged whether the internal temperature of the freezing compartment 10 reaches the preset cooling start temperature. The refrigerator of this embodiment includes a temperature detection device 70 . The temperature detection device 70 is disposed inside the freezer compartment 10 and configured to detect the temperature inside the freezer compartment 10 . If the result of the above determination is negative, keep the compressor 20 shut down.

Step S404, if the determination result of step S402 is yes, turn on the cooling fan 60 . When the temperature inside the freezer compartment 10 is higher than the preset cooling start temperature, it is necessary to turn on the refrigerator for refrigeration, so as to prevent the temperature in the freezer compartment 10 of the refrigerator from being too high and affect the freshness of the food. At this time, the cooling fan 60 is turned on first. The cooling start temperature mentioned above can be the maximum temperature that the freezing compartment 10 can reach under the premise of ensuring the freshness of the food.

Step S406, start the compressor 20 after turning on the cooling fan 60 for a third preset time, so as to make the refrigeration system run. When the refrigerator of this embodiment is started, the cooling fan 60 is started before the compressor 20, and runs independently for a third preset time, so as to advance the heat dissipation to the condenser 30 and the compressor 20 and establish a heat dissipation cycle in advance. In addition, the starting times of the compressor 20 and the cooling fan 60 are separated to prevent noise superposition caused by simultaneous starting of the two. After turning on the cooling fan 60 and reaching the third preset time, start the compressor 20. At this time, since the cooling fan 60 has pre-heated the compressor 20 and the condenser 30, it effectively slows down the compressor 20 and the condenser 30 after starting. temperature rise. Ensure the normal operation of the compressor 20 and the condenser 30. The above-mentioned third preset time is preferably 30s.

Step S408, timing the running time of the compressor 20 .

Step S410, after the compressor 20 runs for a first preset time, the refrigeration blower 50 is turned on, so as to establish a circulation of cold air inside the refrigerator. When the compressor 20 is just started, the temperature of the evaporator 40 is relatively high, and it takes a certain amount of time for the entire refrigeration system to go from being static to establishing refrigeration. During the first preset time after the compressor 20 is started, the refrigerating fan 50 is turned off to wait for the temperature of the evaporator 40 to drop. After the compressor 20 starts to reach the first preset time, the temperature of the evaporator 40 has dropped, and at this time the refrigeration fan 50 is restarted to gradually establish a refrigeration cycle in the refrigerator. In this embodiment, the first preset time may be the time required to wait for the temperature of the evaporator 40 to drop, preferably 1 min. This pre-set start mode separates the start time of the compressor 20 and the refrigeration fan 50 to prevent the noise superposition caused by the simultaneous start of the two, which can achieve a certain noise reduction effect and is conducive to the rapid cooling of the refrigerator refrigeration system.

Step S412, judging whether the internal temperature of the freezing compartment 10 has reached the preset shutdown temperature of the compressor. If the judgment result is no, keep the working state of the compressor 20 . The aforementioned compressor shutdown temperature may be the temperature of the freezing compartment 10 preset by the user.

In step S414, the compressor 20 is turned off, and the cooling fan 60 is turned off while cooling is stopped. If the judgment result of step S412 is yes, the temperature of the freezer compartment 10 reaches the cooling temperature requirement, and the compressor 20 can be stopped to stop cooling to save energy. After the compressor 20 is shut down, it will take a certain amount of time to start up next time. Due to the long shutdown time, the compressor 20 and the condenser 30 can dissipate heat through natural cooling, and the cooling fan 60 is turned off when the compressor 20 is shut down to save energy.

Step S416, counting the closing time of the compressor 20.

In step S418, the refrigeration fan 50 is turned off after the compressor 20 stops for a second preset time. After the compressor 20 stops, the temperature of the evaporator 40 will not rise immediately, and it still stores a certain amount of cooling capacity. At this moment, the refrigerating fan 50 continues to work, prolonging the circulation time of the airflow inside the refrigerator, and making full use of the remaining cooling capacity of the evaporator 40 . After the stop of the compressor 20 reaches the second preset time, the evaporator 40 has risen to a higher temperature. At this time, the refrigeration fan 50 is turned off, and the air supply to the freezing compartment 10 is stopped. Due to the fact that the shut-off mode of this preset sequence separates the shut-off time of the compressor 20 and the refrigeration fan 50, it prevents the superimposition of noise when both are shut down at the same time, and can achieve the effect of reducing a certain amount of noise. Cooling capacity, saving energy. The second preset time is the time required for the temperature of the evaporator 40 to rise to a certain level, preferably 1 min.

This embodiment provides a method for controlling a refrigerator, which includes a refrigeration system composed of a compressor 20 , a condenser 30 , and an evaporator 40 , and a refrigeration fan 50 for delivering cold air to the interior of the freezer compartment 10 of the refrigerator. And the above refrigerator control method includes: counting the running time of the compressor 20 after starting the compressor 20, and starting the refrigeration fan 50 after the compressor 20 runs for a first preset time. The refrigerator control method of the present invention separates the start-up time of the compressor 20 and the refrigeration fan 50 to prevent noise superposition caused by simultaneous start-up of the two, and can achieve a certain noise reduction effect. In addition, after the compressor 20 starts to reach the first preset time, the temperature of the evaporator 40 has dropped, and at this time the refrigeration fan 50 is restarted to gradually establish a refrigeration cycle in the refrigerator, which is beneficial to the rapid refrigeration of the refrigerator refrigeration system.

Further, in the control method of this embodiment, after the compressor 20 is stopped, the refrigeration fan 50 continues to work, so as to prolong the air circulation time inside the refrigerator and make full use of the remaining cooling capacity of the evaporator 40 . After the compressor 20 stops for the second preset time, the refrigeration blower 50 is turned off, and the air supply to the refrigeration compartment 10 is stopped. The refrigerator control method of the present invention makes full use of the remaining cooling capacity of the evaporator 40, saving energy.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A control method for a refrigerator, the refrigerator includes a refrigeration system connected by a compressor, a condenser, and an evaporator, and a freezing blower for delivering cold air to the inside of the freezer compartment of the refrigerator, and the freezer of the refrigerator Control methods include: start the compressor to run the refrigeration system; timing the running time of the compressor; and The refrigerating fan is turned on after the compressor runs for a first preset time, so as to establish a refrigerated air circulation inside the refrigerator. 2. The method according to claim 1, wherein, after turning on the refrigeration fan, further comprising: When the internal temperature of the freezing compartment reaches the preset shutdown temperature of the compressor, the compressor is turned off to stop refrigeration; timing the off time of the compressor; and The refrigeration fan is turned off after the compressor stops for a second preset time. 3. The method according to claim 1, wherein the refrigerator is also provided with a cooling fan for cooling the condenser and the compressor, and before starting the compressor, it also includes: Turning on the cooling fan and performing the step of turning on the compressor after the cooling fan is started for a third preset time, so as to establish a cooling cycle in advance. 4. The method of claim 3, wherein, Turn off the cooling fan while turning off the compressor. 5. The method according to claim 3, wherein, before the step of starting the cooling fan, further comprising: The cooling fan is turned on when the temperature inside the freezing compartment reaches a preset cooling start temperature. 6. A refrigerator comprising: The refrigeration system is composed of a compressor, an evaporator, and a condenser connected in sequence; a cooling fan for generating an airflow that dissipates heat generated by the compressor and the condenser; and The refrigerating fan generates an airflow sent into the refrigerating compartment of the refrigerator after exchanging heat with the evaporator, and is configured to be turned on after the compressor is turned on for a first preset time. 7. The refrigerator according to claim 6, further comprising: a temperature detection device disposed inside the freezer compartment and configured to detect the temperature inside the freezer compartment; and The compressor is further configured to shut down when the temperature inside the refrigerated compartment is lower than a preset compressor shutdown temperature; The refrigeration fan is further configured to be turned off after the compressor stops for a second preset time. 8. The refrigerator according to claim 6, wherein: The cooling fan is also configured to be continuously turned on for a third preset time before the compressor is turned on for cooling, so as to establish a cooling cycle in advance. 9. The refrigerator according to claim 7, wherein: The cooling fan is also configured to be turned off while the compressor is stopped. 10. The refrigerator according to claim 8, wherein: The cooling fan is further configured to be turned on when the temperature inside the freezing compartment is higher than a preset cooling start temperature.