CN113758133A

CN113758133A - Refrigerator control method and refrigerator

Info

Publication number: CN113758133A
Application number: CN202010501459.5A
Authority: CN
Inventors: 张海鹏; 丁龙辉; 孙敬龙; 潘毅广
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-12-07

Abstract

The application discloses a refrigerator control method and a refrigerator, wherein the method comprises the following steps: in response to monitoring that the refrigerator door is switched from an open state to a closed state, timing the closing time of the refrigerator door; adjusting an operating frequency of a compressor of the refrigerator to control noise generated by the refrigerator when the off-time exceeds a first time threshold. The technical scheme of the embodiment of the application can solve the technical problem of overlarge noise of the refrigerator in the operation process at night.

Description

Refrigerator control method and refrigerator

Technical Field

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

Background

At present, the high-speed operation of a refrigerator compressor is a main reason of noise generation of a refrigerator, the operation of the refrigerator compressor is controlled by a main control panel of the refrigerator, the main control panel has two forms of controlling the rotating speed of the refrigerator compressor, the first form is that the ambient temperature is detected by a temperature sensing head, the higher the ambient temperature is, the larger the refrigeration capacity required by the default refrigerator is, the larger the rotating speed of the compressor is, the second ambient temperature and the set temperature of the refrigerator and the temperature difference between rooms determine the rotating speed of the compressor together, and the quantity of the refrigeration capacity required by the refrigerator is determined by the difference value of the ambient temperature and the set temperature of the refrigerator and the temperature between the rooms together.

Since the conventional refrigerator cannot recognize whether the refrigerator is operated at daytime or at night, noise is generated at any time due to the high-speed operation of the compressor. Although the noise is not easy to be perceived by people in the daytime, the noise is easy to be perceived by users at night when people are quiet, particularly when the refrigerator is very close to a bedroom, and therefore rest of the users is affected.

Therefore, how to avoid the excessive noise generated in the operation process of the refrigerator at night is a technical problem to be solved urgently.

Disclosure of Invention

The embodiment of the application provides a refrigerator control method and a refrigerator, and further can solve the technical problem of overlarge noise of the refrigerator in the operation process at night at least to a certain extent.

Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.

According to a first aspect of embodiments of the present application, there is provided a refrigerator control method including:

in response to monitoring that the refrigerator door is switched from an open state to a closed state, timing the closing time of the refrigerator door;

adjusting an operating frequency of a compressor of the refrigerator to control noise generated by the refrigerator when the off-time exceeds a first time threshold.

In the method, the use frequency of the refrigerator can be indirectly monitored by monitoring the opening and closing state of the refrigerator door, so that the working time period of the refrigerator can be roughly judged, specifically, when the condition that the refrigerator door is switched from the opening state to the closing state is monitored, the working time period of the refrigerator can be judged according to the closing time of the refrigerator door by timing the closing time of the refrigerator door, when the closing time exceeds a preset first time threshold value, the working time period of the refrigerator can be judged to be at night, a user can have a rest, and the noise generated by the refrigerator can be reduced by adjusting the operation frequency of the compressor of the refrigerator.

In some embodiments of the present application, based on the foregoing scheme, when the off-time exceeds a first time threshold, an initial operating frequency of the compressor is obtained; when the initial operating frequency is greater than a first operating frequency, adjusting the operating frequency of the compressor to the first operating frequency, wherein the first operating frequency is the minimum operating frequency on the premise that the compressor meets the requirement of the refrigeration performance of the refrigerator.

In the above method, by obtaining the initial operating frequency of the compressor, it can be determined whether the initial operating frequency is greater than the first operating frequency, and only under the condition that the initial operating frequency is greater than the first operating frequency, the operating frequency of the compressor is adjusted to the first operating frequency, which is beneficial in that the following situations can be prevented: unnecessary adjustment of the operating frequency of the compressor by increasing it from a lower operating frequency to the first operating frequency in an operating state in which the compressor is inherently at a lower frequency.

In some embodiments of the present application, based on the foregoing solution, when the closing time exceeds a first time threshold, and when a temperature of a refrigerator compartment of the refrigerator is not lower than a preset starting temperature, adjusting an operating frequency of the compressor to a first operating frequency, where the first operating frequency is a minimum operating frequency on the premise that the compressor meets a requirement of refrigeration performance of the refrigerator; and when the temperature of the refrigerator compartment is not higher than a preset shutdown temperature, closing the compressor, wherein the preset startup temperature is higher than the preset shutdown temperature.

In the method, the operation frequency of the compressor is adjusted to the first operation frequency only when the temperature of the refrigerator compartment of the refrigerator is not lower than the preset starting temperature, and the compressor is turned off when the temperature of the refrigerator compartment is not higher than the preset stopping temperature. The advantage is that it can not only ensure the normal use of the refrigerator, but also control the noise generated by the operation of the compressor to the maximum extent.

In some embodiments of the present application, based on the foregoing solution, after the operating frequency of the compressor is adjusted to the first operating frequency when the refrigerator compartment temperature of the refrigerator is not lower than the preset starting temperature, when the continuous operating time of the compressor after the adjustment to the first operating frequency exceeds a second time threshold and the refrigerator compartment temperature is higher than a compartment preset temperature, the operating frequency of the compressor is adjusted to a second operating frequency until the refrigerator compartment temperature is not higher than the preset stopping temperature, the compartment preset temperature is higher than the preset stopping temperature, and the second operating frequency is higher than the first operating frequency; when the continuous operation time exceeds a second time threshold value, and the temperature of the refrigerator compartment is not higher than a compartment preset temperature and higher than a preset shutdown temperature, continuing to operate the compressor according to the first operation frequency; and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor.

In the above embodiment, on one hand, when the continuous operation time of the compressor after being adjusted to the first operation frequency exceeds the second time threshold and the temperature of the refrigerator compartment is higher than the compartment preset temperature, the operation frequency of the compressor is adjusted to the second operation frequency, and on the other hand, when the temperature of the refrigerator compartment is not higher than the compartment preset temperature and not lower than the preset shutdown temperature, the compressor is continuously operated according to the first operation frequency, the temperature of the refrigerator compartment can be reduced to the preset shutdown temperature in a short time, so that the compressor is quickly turned off, and noise of the refrigerator caused by the operation of the compressor is eliminated.

In some embodiments of the present application, based on the foregoing scheme, after continuing to operate the compressor at the first operating frequency when the sustained operation time exceeds a second time threshold, the refrigerator compartment temperature is not higher than a compartment preset temperature and higher than a preset shutdown temperature, when the sustained operation time exceeds a third time threshold, and the refrigerator compartment temperature is higher than the preset shutdown temperature, the operating frequency of the compressor is adjusted to the second operating frequency until the refrigerator compartment temperature is not higher than the preset shutdown temperature; and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor.

In the above embodiment, when the continuous operation time exceeds the third time threshold and the temperature of the refrigerator compartment is higher than the preset shutdown temperature, the operation frequency of the compressor is adjusted to the second operation frequency, and the temperature of the refrigerator compartment can also be rapidly reduced to the preset shutdown temperature, so that the compressor is turned off, and noise generated by the operation of the compressor in the refrigerator is eliminated.

In some embodiments of the present application, based on the foregoing solution, after adjusting the operating frequency of the compressor of the refrigerator when the closing time exceeds a first time threshold, clearing the closing time when the closing time exceeds a fourth time threshold to re-time the closing time of the refrigerator door; adjusting the operating frequency of the compressor to a standard operating frequency.

In the above method, by clearing the off time when the off time exceeds a fourth time threshold; the operation frequency of the compressor is adjusted to the standard operation frequency, so that the performance of the refrigerator can be prevented from being damaged due to the fact that relevant functional components of the refrigerator are not reset for a long time, and the service life and normal use of the refrigerator are guaranteed.

In some embodiments of the present application, based on the foregoing, after adjusting an operating frequency of a compressor of the refrigerator when the closing time exceeds a first time threshold, clearing the closing time in response to monitoring that the refrigerator door switches from a closed state to an open state; adjusting the operating frequency of the compressor to a standard operating frequency.

In the above method, it is determined that the user starts using the refrigerator without being in a rest state by monitoring that the refrigerator door is switched from a closed state to an open state. According to the method, the refrigerator automatically identifies night and day according to the use condition of the user, automatically enters and exits from a night mute mode, and the condition that the noise is high when the refrigerator is used at night for the user to rest is avoided.

In this application, the refrigerator is opened arbitrary door and is used, and default is daytime, and the great working mode of relative noise is gone on daytime, and the refrigerator is after getting into night silent mode, and the low frequency operation in the refrigerator compressor avoids appearing the great running condition of noise, controls the change number of times of compressor frequency through setting for the time threshold value simultaneously, avoids the noise sudden change that the refrigerator produced to be perceived by the user to influence the user and have a rest.

According to a second aspect of embodiments of the present application, there is provided a refrigerator including a control device including: the timing module is used for responding to the monitoring that the refrigerator door is switched from an open state to a closed state and timing the closing time of the refrigerator door; and the compressor running frequency adjusting module is used for adjusting the running frequency of the compressor of the refrigerator when the closing time exceeds a first time threshold value so as to control the noise generated by the refrigerator.

In some embodiments of the present application, based on the foregoing, the compressor operation frequency adjustment module is further configured to: when the closing time exceeds a first time threshold, acquiring an initial running frequency of the compressor; when the initial operating frequency is greater than a first operating frequency, adjusting the operating frequency of the compressor to the first operating frequency, wherein the first operating frequency is the minimum operating frequency on the premise that the compressor meets the requirement of the refrigeration performance of the refrigerator.

In some embodiments of the present application, based on the foregoing, the compressor operation frequency adjustment module is further configured to: when the temperature of the refrigerator compartment of the refrigerator is not lower than a preset starting temperature, adjusting the operating frequency of the compressor to a first operating frequency, wherein the first operating frequency is the minimum operating frequency of the compressor on the premise that the compressor meets the requirement of the refrigeration performance of the refrigerator; and when the temperature of the refrigerator compartment is not higher than a preset shutdown temperature, closing the compressor, wherein the preset startup temperature is higher than the preset shutdown temperature.

In some embodiments of the present application, based on the foregoing, the compressor operation frequency adjustment module is further configured to: when the temperature of a refrigerator compartment of the refrigerator is not lower than a preset starting temperature, after the operating frequency of the compressor is adjusted to a first operating frequency, when the continuous operating time of the compressor after the compressor is adjusted to the first operating frequency exceeds a second time threshold and the temperature of the refrigerator compartment is higher than a compartment preset temperature, the operating frequency of the compressor is adjusted to a second operating frequency until the temperature of the refrigerator compartment is not higher than the preset stopping temperature, the compartment preset temperature is higher than the preset stopping temperature, and the second operating frequency is higher than the first operating frequency; when the continuous operation time exceeds a second time threshold value, and the temperature of the refrigerator compartment is not higher than a compartment preset temperature and higher than a preset shutdown temperature, continuing to operate the compressor according to the first operation frequency; and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor.

In some embodiments of the present application, based on the foregoing, the compressor operation frequency adjustment module is further configured to: after the compressor continues to operate according to the first operation frequency when the continuous operation time exceeds a second time threshold value, and the temperature of the refrigerator compartment is not higher than a compartment preset temperature and higher than a preset shutdown temperature, when the continuous operation time exceeds a third time threshold value and the temperature of the refrigerator compartment is higher than the preset shutdown temperature, the operation frequency of the compressor is adjusted to the second operation frequency until the temperature of the refrigerator compartment is not higher than the preset shutdown temperature; and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor.

In some embodiments of the present application, based on the foregoing solution, the timing module is further configured to: clearing the closing time when the closing time exceeds a fourth time threshold after adjusting the running frequency of a compressor of the refrigerator when the closing time exceeds a first time threshold so as to count the closing time of the refrigerator door again; the compressor operating frequency adjustment module is further configured to: adjusting the operating frequency of the compressor to a standard operating frequency.

In some embodiments of the present application, based on the foregoing solution, the timing module is further configured to: clearing the closing time in response to monitoring that the refrigerator door switches from a closed state to an open state after adjusting the operating frequency of a compressor of the refrigerator when the closing time exceeds a first time threshold; the compressor operating frequency adjustment module is further configured to: adjusting the operating frequency of the compressor to a standard operating frequency.

For the advantages of the second aspect and the embodiments of the second aspect, reference may be made to the advantages of the first aspect and the embodiments of the first aspect, which are not described herein again.

According to a third aspect of embodiments of the present application, there is provided a computer device, comprising a program or instructions, which when executed, is configured to perform the method according to the first aspect and the embodiments of the first aspect.

According to a fourth aspect of embodiments of the present application, there is provided a storage medium comprising a program or instructions which, when executed, is configured to perform the method according to the first aspect and the embodiments of the first aspect.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic system architecture diagram of a refrigerator control method according to an embodiment of the present disclosure;

fig. 2 is a schematic step diagram of a control method of a refrigerator according to an embodiment of the present application;

fig. 3 is a detailed flowchart illustration of a control method of a refrigerator according to an embodiment of the present application;

fig. 4 is a detailed flowchart illustration of a control method of a refrigerator in a night mode according to an embodiment of the present application;

fig. 5 is a block diagram of a control device of a refrigerator according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.

The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

Fig. 1 is a schematic system architecture diagram of a refrigerator control method according to an embodiment of the present disclosure, where the system architecture may be a refrigerator 100, and the refrigerator 100 may include a control device 101, an environment sensor 102, a temperature sensor 103, a compressor 104, and a fan 105.

The environment sensor 102 is configured to collect an environment temperature of the refrigerator 100 and send collected environment temperature data to the control device 101.

The temperature sensor 103 is configured to collect a compartment temperature of the refrigerator 100 and send collected compartment temperature data to the control device 101.

The control device 101 may control the rotation speeds of the compressor 104 and the fan 105 of the refrigerator 100 according to the ambient temperature and the compartment temperature, thereby controlling the compartment temperature of the refrigerator.

In this application, the theory of operation of refrigerator is exactly through mutually supporting of compressor and fan to refrigerate the air, and is concrete, and when the high temperature air flows through the built-in evaporimeter of refrigerator, because air temperature is high, the evaporimeter temperature is low, and both directly take place the heat exchange, and the temperature of air will reduce, and simultaneously, air conditioning is blown into the refrigerator, and the refrigerator is exactly through this kind of continuous circulation mode, reduces the temperature of refrigerator.

It should be noted that the rotation speed of the compressor 104 corresponds to the rotation speed of the fan 105, that is, the rotation speed of the compressor corresponds to the rotation speed of the fan, the heat exchange of the evaporator is fast, and the rotation speed of the compressor corresponds to the rotation speed of the fan.

Based on the above description, fig. 2 shows a schematic diagram of the steps of the control method of the refrigerator provided in the embodiment of the present application in detail, where the steps may be performed by a control device of the refrigerator, and the device may be located in the control device 101 shown in fig. 1, or may be the control device 101.

For this reason, the following describes in detail a control method of a refrigerator according to an embodiment of the present application with reference to fig. 2. The control method includes steps 210 to 230:

in step 210, in response to detecting that the refrigerator door is switched from the open state to the closed state, the closing time of the refrigerator door is timed.

In step 230, when the off time exceeds a first time threshold, adjusting an operating frequency of a compressor of the refrigerator to control noise generated by the refrigerator.

In an alternative embodiment of step 230,

when the closing time exceeds a first time threshold, acquiring an initial running frequency of the compressor; when the initial operating frequency is greater than a first operating frequency, adjusting the operating frequency of the compressor to the first operating frequency, wherein the first operating frequency is the minimum operating frequency on the premise that the compressor meets the requirement of the refrigeration performance of the refrigerator.

In this application, when the closing time exceeds the first time threshold, the working period of the refrigerator may be considered to be at night, and the user may have had a rest, and it is necessary to put the refrigerator into a night working mode. The first time threshold may be set arbitrarily according to actual needs, and may be, for example, 2 hours, 3 hours, 4 hours, or the like.

In this application, the initial operating frequency refers to an operating frequency of a compressor of a refrigerator when the off time is lower than a first time threshold, and the operating frequency of the compressor is adjusted to the first operating frequency only when the initial operating frequency is greater than the first operating frequency. For example, the first operation frequency is set to 80Hz (hertz), and the initial operation frequency of the compressor of the refrigerator is 100Hz (hertz) when the off time exceeds the first time threshold, so it is necessary to reduce the operation frequency of the compressor to 80Hz in order to control the noise generated from the refrigerator within a certain range.

In an alternative embodiment of step 230,

when the temperature of the refrigerator compartment of the refrigerator is not lower than a preset starting temperature, adjusting the operating frequency of the compressor to a first operating frequency, wherein the first operating frequency is the minimum operating frequency of the compressor on the premise that the compressor meets the refrigeration performance requirement of the refrigerator, and the temperature corresponding to the preset starting temperature is the starting temperature of the compressor of the refrigerator; and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor, wherein the temperature corresponding to the preset shutdown temperature is the shutdown temperature of the compressor of the refrigerator.

In this application, the preset starting temperature of the refrigerator can be a basic temperature which can meet the requirement of the refrigerator for normally storing food, and when the room temperature of the refrigerator reaches the preset starting temperature, the compressor is automatically started.

It should be noted that the preset starting-up temperature is higher than the preset stopping temperature, for example, the preset starting-up temperature is 1 °, the preset stopping temperature may be-1 °, and when the compressor is in the starting-up state, the compressor is turned off only when the temperature of the refrigerator compartment of the refrigerator is equal to or lower than-1 °. When the compressor is in an off state, the compressor is turned on only when the temperature of the refrigerator compartment of the refrigerator is equal to or higher than 1 °.

In this application, refrigerator compartment temperature can obtain through temperature sensor, works as when the close time exceeds first time threshold, through judging whether the refrigerator compartment temperature of refrigerator is not less than and predetermines the start temperature and confirms whether to adjust the operating frequency of compressor to first operating frequency, for example, predetermine the start temperature and set up to 0, works as refrigerator compartment temperature is 1.5 when, need with the operating frequency adjustment of compressor to first operating frequency, that is to say, refrigerator compartment temperature still does not reach the temperature requirement that can satisfy the normal save food of refrigerator, need cool down to the refrigerator through opening the compressor, because the refrigerator has got into night work pattern, so need be with the compressor operating frequency control of refrigerator at first operating frequency.

In the above-described alternative embodiment, after the operating frequency of the compressor is adjusted to the first operating frequency, the refrigerator control method provided by the present application may be further performed according to methods corresponding to the following three situations:

the first case: when the continuous operation time of the compressor after being adjusted to the first operation frequency exceeds a second time threshold and the refrigerator compartment temperature is higher than a compartment preset temperature, adjusting the operation frequency of the compressor to a second operation frequency until the refrigerator compartment temperature is not higher than the preset shutdown temperature, wherein the compartment preset temperature is higher than the preset shutdown temperature, and the second operation frequency is higher than the first operation frequency;

in the present application, it should be understood by those skilled in the art that the second time threshold may be arbitrarily set according to actual needs, and specifically, the second time threshold may be 60 minutes or 90 minutes, and is not specifically limited herein.

When the duration time exceeds the second time threshold and the refrigerator compartment temperature is higher than the compartment preset temperature, the operating frequency of the compressor may be adjusted to the second operating frequency, which is advantageous in that the refrigerator compartment temperature may be quickly lowered below the preset shutdown temperature, for example, the preset shutdown temperature of 0 °, the compartment preset temperature of 1.5 °, when the duration time exceeds the second time threshold, the refrigerator compartment temperature is still at 2 °, and in order to reduce the refrigerator compartment temperature below 0 ° as quickly as possible, the operating frequency of the compressor may be adjusted to the second operating frequency, for example, to 90 Hz.

The second case: when the continuous operation time exceeds a second time threshold value, and the temperature of the refrigerator compartment is not higher than a compartment preset temperature and higher than a preset shutdown temperature, continuing to operate the compressor according to the first operation frequency;

specifically, for example, the preset shutdown temperature is 0 °, the preset compartment temperature is 1.5 °, and when the continuous operation time exceeds the second time threshold, the temperature of the refrigerator compartment is still 0.5 °, which indicates that a higher operation frequency compressor is not required to cool the refrigerator compartment, so that the compressor can continue to operate according to the first operation frequency to ensure that the refrigerator does not generate large noise.

The third situation: and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor.

In the second case as described above, after continuing to operate the compressor at the first operating frequency when the sustained operation time exceeds the second time threshold, and the refrigerator compartment temperature is not higher than the compartment preset temperature and higher than the preset shutdown temperature, the refrigerator control method provided by the present application may be further performed according to methods corresponding to the following two cases:

the first case: when the continuous operation time exceeds a third time threshold and the temperature of the refrigerator compartment is higher than a preset shutdown temperature, adjusting the operation frequency of the compressor to the second operation frequency until the temperature of the refrigerator compartment is not higher than the preset shutdown temperature;

in the present application, it should be understood to those skilled in the art that the third time threshold may be arbitrarily set according to actual needs, and specifically, the third time threshold may be 30 minutes or 60 minutes greater than the second time threshold, and is not specifically limited herein.

When the continuous operation time exceeds a third time threshold and the temperature of the refrigerator compartment is still higher than a preset shutdown temperature, it indicates that the compressor with the first operation frequency is difficult to reduce the temperature of the refrigerator compartment to the preset shutdown temperature, and the operation frequency of the compressor needs to be adjusted to the second operation frequency until the temperature of the refrigerator compartment is not higher than the preset shutdown temperature.

The second case: and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor.

In an alternative embodiment after step 230, after adjusting the operating frequency of the compressor of the refrigerator when the closing time exceeds a first time threshold, clearing the closing time when the closing time exceeds a fourth time threshold to re-time the closing time of the refrigerator door; adjusting the operating frequency of the compressor to a standard operating frequency.

In the present application, it should be understood by those skilled in the art that the fourth time threshold is greater than the first time threshold, and the fourth time threshold may be arbitrarily set according to actual needs, and specifically, the fourth time threshold may be 24 hours, or may be an integer multiple of 24 hours, and is not specifically limited herein.

The purpose of this embodiment is to avoid that the user does not open the door (does not use the refrigerator) for a long time, which affects the performance of the refrigerator, so that, when the closing time exceeds the fourth time threshold, one door opening and closing operation is entered, the operation frequency of the compressor is adjusted to the standard operation frequency, the default door opening and closing operation is guaranteed to be also in the daytime, the performance of the refrigerator is prevented from being damaged due to the fact that the relevant functional components of the refrigerator are not reset for a long time, and the service life and the normal use of the refrigerator are guaranteed.

In an alternative embodiment after step 230, after adjusting the operating frequency of the compressor of the refrigerator when the closing time exceeds a first time threshold, clearing the closing time in response to monitoring the refrigerator door switching from a closed state to an open state; adjusting the operating frequency of the compressor to a standard operating frequency.

In the application, by monitoring that the refrigerator door is switched from the closed state to the open state, a user can be considered to start using the refrigerator without being in a rest state, so that the working mode of the refrigerator is switched from night to day, and the operating frequency of the compressor is adjusted to the standard operating frequency.

In order to make the present application better understood by those skilled in the art, the refrigerator control method in the present application will be explained in a specific example with reference to fig. 3 and 4:

fig. 3 is a detailed flowchart illustration of a control method of a refrigerator according to an embodiment of the present application. Specifically, the method comprises steps 301 to 306:

step 301, after the refrigerator is closed, the closing time of the refrigerator door is started to be counted.

Step 302, whether the closing time of the door exceeds a first time threshold (e.g. 3.5 hours, according to statistics, in a normal situation, a user starts to sleep 3 to 4 hours after the last opening and closing of the refrigerator door).

Step 303, if yes, the refrigerator enters a night mute working mode.

And step 304, monitoring whether the refrigerator is opened or closed, and if so, executing step 306.

In step 305, it is monitored whether the closing time of the refrigerator door exceeds a fourth time threshold (for example, the fourth time threshold is 24 hours or an integral multiple of 24 hours), and if so, step 306 is executed.

And step 306, the refrigerator exits the night mute working mode, and the closing time of the refrigerator door is cleared.

According to the method for entering the night mute working mode, the working period of the refrigerator is artificially divided into day and night according to the study on the living habits of users (the refrigerator cannot be operated under the condition that the users sleep at night) and the conditions and rest time of using the refrigerator, the day and the night identified by the refrigerator are opposite, the method is suitable for the normal use condition of the refrigerator, meanwhile, the night mute mode can be entered when the number of times of opening and closing the door of the refrigerator is small in the day, but the influence of the night mute mode control on the performance of the day is small, and the noise can be effectively reduced.

It should be noted that the night silent mode does not have the state of high-frequency operation of the compressor and the fan of the refrigerator such as the defrosting period, and meanwhile, the night silent mode does not have certain special mode with large operation noise.

Fig. 4 is a flowchart illustrating details of a control method of a refrigerator in a night mode according to an embodiment of the present application. Specifically, the method comprises steps 401 to 407:

in step 401, when the door of the refrigerator is closed and a first time threshold (for example, 3.5 hours) is exceeded, the night mute mode is entered.

Step 402, operating the compressor at 3 rd gear, judging whether the temperature of the refrigerator compartment reaches a preset shutdown temperature, and if so, executing step 407; if not, go to step 403.

Step 403, if the continuous operation time of the compressor after being adjusted to the first operation frequency exceeds a second time threshold (for example, 1 hour), whether the compartment temperature is not lower than the compartment preset temperature (for example, the compartment preset temperature is equal to the refrigerator set temperature +3 °), if yes, step 406 is executed; if not, go to step 404.

Step 404, the compressor maintains 3-gear operation, whether the temperature of the refrigerator compartment reaches the preset shutdown temperature is judged, and if yes, step 407 is executed; if not, go to step 405;

step 405, when the refrigerator door is closed and the third time threshold (for example, 2 hours) is exceeded, whether the temperature of the refrigerator compartment reaches a preset shutdown temperature is judged, and if yes, step 407 is executed; if not, go to step 406.

In step 406, the compressor is switched to 4-step operation until the temperature of the refrigerator compartment reaches a preset shutdown temperature.

In step 407, the compressor is turned off.

It should be noted that, in this example, the comparison between the operating gear of the compressor and the operating frequency of the compressor may be as shown in table 1, specifically, after the refrigerator enters the night mute mode, the compressor operates at 3 gears, that is, the operating frequency is 80Hz (the stable operating frequency of the compressor in the night mute mode), and when the room temperature reaches the shutdown temperature, the compressor is turned off to complete a refrigeration cycle; if the compressor is not stopped in 3 grades of continuous operation for 1 hour, detecting the difference value between the indoor temperature and the set temperature, and dividing the difference value into two conditions, namely the first condition, when the difference value between the indoor temperature and the set temperature is more than or equal to the set temperature threshold (3 ℃), switching the compressor to 4 grades of operation until the indoor temperature reaches the stop temperature so as to stop the compressor; in the second situation, when the difference between the indoor temperature and the set temperature is less than the set temperature threshold (3 ℃), the compressor keeps 3 grades of operation, and the compressor stops when the indoor temperature reaches the stop temperature; when the compressor keeps 3 grades of continuous operation for 1 hour without stopping, the operation is directly switched to 4 grades of operation until the temperature of the compartment reaches the stopping temperature, so that the compressor is stopped.

Compressor gear	Compressor operating frequency	Running speed of compressor
			1 st gear	40Hz	1200r/min
2-gear	60Hz	1800r/min
			3 grade	80Hz	2400r/min
4-gear	100Hz	3000r/min
			5-gear	130Hz	3900r/min

TABLE 1

It should be further noted that, in other embodiments of the present application, in the night mute operation mode, the selection principle of the stable operation frequency of the refrigerator compressor may include the following three points:

first, the operating speed of the compressor (compressor operating frequency) away from the resonance band is selected.

Secondly, the relative performance of the noise and the cold quantity of the compressor is better.

And thirdly, the oiling rotating speed of the compressor is considered, and the oiling rotating speed is the first choice of the mute mode rotating speed for ensuring the stability of noise.

In some implementations of the application, firstly, the refrigerator can automatically identify the day and the night according to the use condition of a user, and automatically enter and exit a night mute mode, so that the condition that the noise of the refrigerator is high at night when the user has a rest is avoided; secondly, after the refrigerator enters a night mute mode, the compressor and the fan of the refrigerator run at low frequency, so that the running condition with high noise is avoided, the change times of the rotating speed of the compressor and the fan are reduced, and the noise sudden change is prevented from being perceived by a user; thirdly, the refrigerator is used by opening any door, which is defaulted to be daytime, and the working mode with relatively high noise is carried out in the daytime; finally, in order to avoid the influence on the performance of the refrigerator caused by the fact that the user does not open the door for a long time, the door closing time of the refrigerator can be accumulated, the door opening and closing operation is counted once when a certain time threshold (for example, 24 hours) is met, and the refrigerator is guaranteed to be in a daytime working mode under the condition of default door opening and closing operation.

The application provides a refrigerator, the refrigerator includes a control device, and fig. 5 is a block diagram of the control device of the refrigerator provided in the embodiment of the application.

As shown in fig. 5, the control apparatus of the refrigerator includes a timing module 501 and a compressor operation frequency adjusting module 502

The timing module 501 is configured to time the closing time of the refrigerator door in response to monitoring that the refrigerator door is switched from an open state to a closed state; a compressor operation frequency adjusting module 502, configured to adjust an operation frequency of a compressor of the refrigerator when the off time exceeds a first time threshold, so as to control noise generated by the refrigerator.

In some embodiments of the present application, based on the foregoing, the compressor operation frequency adjustment module 502 is further configured to: when the closing time exceeds a first time threshold, acquiring an initial running frequency of the compressor; when the initial operating frequency is greater than a first operating frequency, adjusting the operating frequency of the compressor to the first operating frequency, wherein the first operating frequency is the minimum operating frequency on the premise that the compressor meets the requirement of the refrigeration performance of the refrigerator.

In some embodiments of the present application, based on the foregoing, the compressor operation frequency adjustment module 502 is further configured to: when the temperature of the refrigerator compartment of the refrigerator is not lower than a preset starting temperature, adjusting the operating frequency of the compressor to a first operating frequency, wherein the first operating frequency is the minimum operating frequency of the compressor on the premise that the compressor meets the requirement of the refrigeration performance of the refrigerator; and when the temperature of the refrigerator compartment is not higher than a preset shutdown temperature, closing the compressor, wherein the preset startup temperature is higher than the preset shutdown temperature.

In some embodiments of the present application, based on the foregoing, the compressor operation frequency adjustment module 502 is further configured to: when the temperature of a refrigerator compartment of the refrigerator is not lower than a preset starting temperature, after the operating frequency of the compressor is adjusted to a first operating frequency, when the continuous operating time of the compressor after the compressor is adjusted to the first operating frequency exceeds a second time threshold and the temperature of the refrigerator compartment is higher than a compartment preset temperature, the operating frequency of the compressor is adjusted to a second operating frequency until the temperature of the refrigerator compartment is not higher than the preset stopping temperature, the compartment preset temperature is higher than the preset stopping temperature, and the second operating frequency is higher than the first operating frequency; when the continuous operation time exceeds a second time threshold value, and the temperature of the refrigerator compartment is not higher than a compartment preset temperature and higher than a preset shutdown temperature, continuing to operate the compressor according to the first operation frequency; and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor.

In some embodiments of the present application, based on the foregoing, the compressor operation frequency adjustment module 502 is further configured to: after the compressor continues to operate according to the first operation frequency when the continuous operation time exceeds a second time threshold value, and the temperature of the refrigerator compartment is not higher than a compartment preset temperature and higher than a preset shutdown temperature, when the continuous operation time exceeds a third time threshold value and the temperature of the refrigerator compartment is higher than the preset shutdown temperature, the operation frequency of the compressor is adjusted to the second operation frequency until the temperature of the refrigerator compartment is not higher than the preset shutdown temperature; and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor.

In some embodiments of the present application, based on the foregoing solution, the timing module 501 is further configured to: clearing the closing time when the closing time exceeds a fourth time threshold after adjusting the running frequency of a compressor of the refrigerator when the closing time exceeds a first time threshold so as to count the closing time of the refrigerator door again; the compressor operating frequency adjustment module 502 is further configured to: adjusting the operating frequency of the compressor to a standard operating frequency.

In some embodiments of the present application, based on the foregoing solution, the timing module 501 is further configured to: clearing the closing time in response to monitoring that the refrigerator door switches from a closed state to an open state after adjusting the operating frequency of a compressor of the refrigerator when the closing time exceeds a first time threshold; the compressor operating frequency adjustment module 502 is further configured to: adjusting the operating frequency of the compressor to a standard operating frequency.

The embodiment of the application provides computer equipment, which comprises a program or an instruction, and when the program or the instruction is executed, the program or the instruction is used for executing the refrigerator control method and any optional method provided by the embodiment of the application.

Embodiments of the present application provide a storage medium, which includes a program or an instruction, and when the program or the instruction is executed, the storage medium is configured to execute a refrigerator control method and any optional method provided in embodiments of the present application.

Finally, it should be noted that: as will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

Claims

1. A refrigerator control method, characterized in that the method comprises:

2. The method of claim 1, wherein adjusting an operating frequency of a compressor of the refrigerator when the off time exceeds a first time threshold comprises:

when the closing time exceeds a first time threshold, acquiring an initial running frequency of the compressor;

when the initial operating frequency is greater than a first operating frequency, adjusting the operating frequency of the compressor to the first operating frequency, wherein the first operating frequency is the minimum operating frequency on the premise that the compressor meets the requirement of the refrigeration performance of the refrigerator.

3. The method of claim 1, wherein adjusting an operating frequency of a compressor of the refrigerator when the off time exceeds a first time threshold comprises:

when the temperature of the refrigerator compartment of the refrigerator is not lower than a preset starting temperature, adjusting the operating frequency of the compressor to a first operating frequency, wherein the first operating frequency is the minimum operating frequency of the compressor on the premise that the compressor meets the requirement of the refrigeration performance of the refrigerator;

and when the temperature of the refrigerator compartment is not higher than a preset shutdown temperature, closing the compressor, wherein the preset startup temperature is higher than the preset shutdown temperature.

4. The method of claim 3, wherein after adjusting the operating frequency of the compressor to a first operating frequency when the refrigerator compartment temperature of the refrigerator is not less than a preset starting temperature, the method further comprises:

when the continuous operation time of the compressor after being adjusted to the first operation frequency exceeds a second time threshold and the refrigerator compartment temperature is higher than a compartment preset temperature, adjusting the operation frequency of the compressor to a second operation frequency until the refrigerator compartment temperature is not higher than the preset shutdown temperature, wherein the compartment preset temperature is higher than the preset shutdown temperature, and the second operation frequency is higher than the first operation frequency;

when the continuous operation time exceeds a second time threshold value, and the temperature of the refrigerator compartment is not higher than a compartment preset temperature and higher than a preset shutdown temperature, continuing to operate the compressor according to the first operation frequency;

and when the temperature of the refrigerator compartment is not higher than the preset shutdown temperature, closing the compressor.

5. The method of claim 4, further comprising, after continuing to operate the compressor at the first operating frequency when the sustained operation time exceeds a second time threshold, the refrigerator compartment temperature is not greater than a compartment preset temperature and is greater than a preset shutdown temperature, the method further comprising:

when the continuous operation time exceeds a third time threshold and the temperature of the refrigerator compartment is higher than a preset shutdown temperature, adjusting the operation frequency of the compressor to the second operation frequency until the temperature of the refrigerator compartment is not higher than the preset shutdown temperature;

6. The method of claim 1, wherein after adjusting an operating frequency of a compressor of the refrigerator when the off time exceeds a first time threshold, the method further comprises:

when the closing time exceeds a fourth time threshold, clearing the closing time to count the closing time of the refrigerator door again;

adjusting the operating frequency of the compressor to a standard operating frequency.

7. The method of claim 1, wherein after adjusting an operating frequency of a compressor of the refrigerator when the off time exceeds a first time threshold, the method further comprises:

clearing the closing time in response to monitoring that the refrigerator door is switched from a closed state to an open state;

8. A refrigerator, characterized in that the refrigerator comprises a control device comprising:

the timing module is used for responding to the monitoring that the refrigerator door is switched from an open state to a closed state and timing the closing time of the refrigerator door;

and the compressor running frequency adjusting module is used for adjusting the running frequency of the compressor of the refrigerator when the closing time exceeds a first time threshold value so as to control the noise generated by the refrigerator.

9. A computer device comprising a program or instructions that, when executed, perform the method of any of claims 1 to 7.

10. A storage medium comprising a program or instructions which, when executed, perform the method of any one of claims 1 to 7.