Refrigerator temperature control method, device, system and refrigerator

Abstract

This application discloses a refrigerator temperature control method, device, system, and refrigerator, relating to the field of refrigerator technology. The refrigerator temperature control method includes: acquiring the current temperature control setting and the current rate of change of gas concentration in the refrigerator; based on the current rate of change of gas concentration, a first rate of change of concentration corresponding to the current temperature control setting, and a second rate of change of concentration, starting the compressor when the current rate of change of gas concentration is less than the first rate of change of concentration, and stopping the compressor when the current rate of change of gas concentration is greater than the second rate of change of concentration. The refrigerator temperature control method, device, system, and refrigerator provided in this application control the starting and stopping of the compressor based on the relationship between the rate of change of gas concentration and the first and second rates of change of concentration corresponding to the temperature control setting, thereby controlling the temperature of the refrigerator's storage compartment. The refrigerator temperature control method provided in this application is simple, highly reliable, energy-saving, and effectively prevents the spoilage of stored food.

Description

Technical Field

[0001] This application relates to the field of refrigerator technology, and in particular to a refrigerator temperature control method, device, system and refrigerator. Background Technology

[0002] A refrigerator is a refrigeration device that maintains a constant low temperature. By keeping food or other items at a low temperature, it preserves them and slows down spoilage. Depending on the storage temperature, a refrigerator can include a refrigerator compartment, a variable temperature compartment, and a freezer compartment. The refrigerator compartment maintains a temperature between 0°C and 10°C and is mainly used for storing perishable foods such as vegetables, fruits, milk, and yogurt. The variable temperature compartment maintains a temperature between -5°C and 0°C and is mainly used for storing meat, fish, and other similar foods. The freezer compartment maintains a temperature below -18°C and is mainly used for storing frozen foods such as ice cream and frozen foods.

[0003] In existing technologies, temperature sensors are typically installed in the storage compartment to detect the temperature inside. When temperature adjustment is needed, the temperature sensed by the sensor determines whether the set temperature has been reached. However, during temperature adjustment, cold air enters the storage compartment through the air duct, and the gas distribution within the compartment is uneven, resulting in low accuracy of the temperature readings from the internal temperature sensors. If the temperature is detected in an area where gas is concentrated (where the temperature is lower), the sensor may mistakenly interpret it as the food having reached the preset temperature, causing the cooling system to stop cooling, leading to insufficient cooling time. Conversely, if the temperature is detected in an area where gas is sparse (where the temperature is higher), the sensor may mistakenly interpret it as the food not having reached the preset temperature, causing the cooling system to continue cooling, resulting in overcooling in other areas. Installing temperature sensors on different walls would occupy a significant amount of space and increase the complexity of temperature calculations.

[0004] Therefore, the reliability of refrigerator temperature control methods needs to be further improved. Summary of the Invention

[0005] In view of this, this application provides a refrigerator temperature control method, device, system and refrigerator to improve the problem of low reliability of existing refrigerator temperature control methods.

[0006] The technical solution adopted in this application to solve the above-mentioned technical problems is as follows:

[0007] In a first aspect, embodiments of this application provide a refrigerator temperature control method, including:

[0008] Get the current temperature control setting of the refrigerator;

[0009] Based on the current temperature control setting and the corresponding relationship table, determine the first concentration change rate and the second concentration change rate corresponding to the current temperature control setting. The corresponding relationship table includes the relationship between the refrigerator's temperature control setting and the gas concentration change rate that triggers the compressor to start / stop. The first concentration change rate represents the gas concentration change rate that triggers the compressor to start under the current temperature control setting, and the second concentration change rate represents the gas concentration change rate that triggers the compressor to stop under the current temperature control setting. The first concentration change rate is less than the second concentration change rate.

[0010] Obtain the rate of change of current gas concentration in the refrigerator's storage compartment;

[0011] Based on the current rate of change of gas concentration, the first rate of change of concentration, and the second rate of change of concentration, the compressor is started when it is determined that the current rate of change of gas concentration is less than the first rate of change of concentration, and the compressor is shut down when it is determined that the current rate of change of gas concentration is greater than the second rate of change of concentration.

[0012] In some embodiments of this application, after starting the compressor, the method further includes:

[0013] Obtain the real-time rate of change of gas concentration in the refrigerator's storage compartment;

[0014] When it is determined that the rate of change of real-time gas concentration is greater than the second rate of change of concentration, the compressor is shut down.

[0015] In some embodiments of this application, after shutting down the compressor, the method further includes:

[0016] Obtain the real-time rate of change of gas concentration in the refrigerator's storage compartment;

[0017] The compressor is started when it is determined that the real-time gas concentration change rate is less than the first concentration change rate.

[0018] In some embodiments of this application, obtaining the current rate of change of gas concentration in the refrigerator's storage compartment includes:

[0019] Periodically measure the gas concentration in the refrigerator's storage compartment;

[0020] Based on the gas concentration obtained this time and the gas concentration obtained previously, determine the current rate of change of gas concentration.

[0021] In some embodiments of this application, the method further includes, before obtaining the current temperature control setting of the refrigerator:

[0022] Confirmation that the temperature control setting command has been received.

[0023] Secondly, embodiments of this application also provide a refrigerator temperature control device, comprising:

[0024] The acquisition module is used to obtain the current temperature control setting of the refrigerator;

[0025] The determination module is used to determine the first concentration change rate and the second concentration change rate corresponding to the current temperature control setting based on the current temperature control setting and the corresponding relationship table. The corresponding relationship table includes the correspondence between the refrigerator's temperature control setting and the gas concentration change rate that triggers the compressor to start / stop. The first concentration change rate represents the gas concentration change rate that triggers the compressor to start under the current temperature control setting, and the second concentration change rate represents the gas concentration change rate that triggers the compressor to stop under the current temperature control setting. The first concentration change rate is less than the second concentration change rate.

[0026] The acquisition module is also used to acquire the current rate of change of gas concentration in the refrigerator's storage compartment;

[0027] The control module is used to start the compressor when it is determined that the current gas concentration change rate is less than the first concentration change rate, and to shut down the compressor when it is determined that the current gas concentration change rate is greater than the second concentration change rate, based on the current gas concentration change rate, the first concentration change rate, and the second concentration change rate.

[0028] In some embodiments of this application, the refrigerator temperature control device further includes a detection module for periodically detecting the gas concentration in the refrigerator's storage compartment, and an acquisition module for determining the current gas concentration change rate based on the gas concentration detected this time and the gas concentration detected previously.

[0029] In some embodiments of this application, the detection module is further used to detect the temperature control setting command, and the acquisition module is used to acquire the current temperature control setting of the refrigerator according to the temperature control setting command.

[0030] Thirdly, embodiments of this application also provide a refrigerator temperature control system, including:

[0031] A gas concentration sensor is installed in the refrigerator's storage compartment, at the bottom of the compartment, to obtain the gas concentration in the compartment.

[0032] The thermostat includes a storage unit and a processing unit. The storage unit stores computer-readable instructions. The processing unit is connected to the gas concentration sensor and the storage unit. The processing unit is used to invoke the computer-readable instructions to execute the above-mentioned refrigerator temperature control method.

[0033] Fourthly, embodiments of this application also provide a refrigerator, which includes the aforementioned refrigerator temperature control system.

[0034] In summary, due to the adoption of the above technical solution, this application includes at least the following beneficial effects:

[0035] The refrigerator temperature control method, device, system, and refrigerator provided in this application control the temperature of the refrigerator storage compartment by controlling the start and stop of the compressor based on the relationship between the current gas concentration change rate and the first and second concentration change rates corresponding to the temperature control setting. The refrigerator temperature control method provided in this application is simple and highly reliable, can save energy, and effectively prevents the spoilage of stored food. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this application and are not intended to limit this application, wherein:

[0037] Figure 1 A flowchart illustrating a refrigerator temperature control method provided in an embodiment of this application;

[0038] Figure 2 This is a flowchart of a method for obtaining the rate of change of current gas concentration in the storage compartment of a refrigerator, as provided in an embodiment of this application.

[0039] Figure 3 This is a structural block diagram of the refrigerator temperature control device provided in the embodiments of this application.

[0040] Figure label:

[0041] Refrigerator temperature control device 100; acquisition module 10; determination module 20; control module 30; detection module 40. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0044] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles disclosed in this application.

[0045] To facilitate understanding of the technical solution of this application, the relevant technologies involved in the technical solution of this application will be introduced first. A refrigerator achieves refrigeration through a compressor. The process includes: when the refrigerator is plugged in and started operating, the compressor begins to work when the thermostat contacts are closed. Low-temperature, low-pressure refrigerant is drawn into the compressor and compressed into high-temperature, high-pressure superheated gas in the compressor cylinder before being discharged into the condenser. The high-temperature, high-pressure refrigerant gas dissipates heat through the condenser, its temperature continuously decreasing until it is gradually cooled into room-temperature, high-pressure saturated vapor, and further cooled into saturated liquid, where its temperature no longer decreases. The condensed saturated refrigerant liquid flows into a capillary tube after being filtered to remove moisture and impurities through a dryer filter. There, it undergoes throttling and pressure reduction, transforming the refrigerant into room-temperature, low-pressure wet vapor. Subsequently, it begins to absorb heat and vaporize in the evaporator, not only lowering the temperature of the evaporator and its surroundings but also turning the refrigerant into a low-temperature, low-pressure gas. The refrigerant exiting the evaporator returns to the compressor, continuously repeating the above process to transfer heat from the refrigerator's storage compartment to the outside air, thus achieving refrigeration.

[0046] When the refrigerator compressor is turned on to cool, cold air enters the storage compartment and sinks to the bottom due to gravity. It should be noted that the storage compartment in this application can be a refrigerator compartment, a variable temperature compartment, or a freezer compartment.

[0047] Please see Figure 1 This application provides a method for controlling the temperature of a refrigerator. This method can be applied to the refrigerator's thermostat or to a third-party terminal device connected to the refrigerator's thermostat signal.

[0048] In some embodiments, the refrigerator temperature control method may include the following steps.

[0049] S11. Obtain the current temperature control setting of the refrigerator.

[0050] It should be noted that in this application, the higher the temperature control setting of the refrigerator, the lower the corresponding temperature, and each temperature control setting has a corresponding temperature range.

[0051] In some embodiments, the refrigerator temperature control method further includes:

[0052] S12. Based on the current temperature control setting and the corresponding relationship table, determine the first concentration change rate and the second concentration change rate corresponding to the current temperature control setting. The corresponding relationship table includes the correspondence between the refrigerator's temperature control setting and the gas concentration change rate that triggers the compressor to start / stop. The first concentration change rate represents the gas concentration change rate that triggers the compressor to start under the current temperature control setting, and the second concentration change rate represents the gas concentration change rate that triggers the compressor to stop under the current temperature control setting. The first concentration change rate is less than the second concentration change rate.

[0053] The rate of change of gas concentration refers to the rate of change of gas concentration detected twice consecutively within the refrigerator's storage compartment. Specifically, if the gas concentration detected in the storage compartment is M1 at time t1 and M2 at time t2, then the rate of change of gas concentration at time t2 is (M2-M1) / (t2-t1). This rate of change of gas concentration is a trend value, taking into account both gas concentration and time factors. If only gas concentration is considered, the gas released by food stored in the compartment will affect the concentration due to the type and quantity of food. This would result in an uncertain and continuously changing gas concentration at different temperature control settings in the corresponding relationship table. Incorporating the time factor reduces the impact of gas released by food and improves the reliability of the temperature control method. The correspondence between the refrigerator's temperature control setting and the rate of change of gas concentration that triggers the compressor's start / stop can be obtained through experimental testing and is preset in the refrigerator's thermostat before the refrigerator leaves the factory.

[0054] In some embodiments, each temperature control setting has its corresponding first concentration change rate and second concentration change rate. The higher the temperature control setting, the lower the corresponding temperature, and the higher the corresponding first concentration change rate and second concentration change rate.

[0055] In some embodiments, the refrigerator temperature control method further includes:

[0056] S13. Obtain the rate of change of the current gas concentration in the refrigerator's storage compartment.

[0057] It should be noted that there is no strict execution order for S11 and S13. S11 can be executed first and then S13, or S13 can be executed first and then S11, or both S11 and S13 can be executed simultaneously.

[0058] In some embodiments, please refer to Figure 2Obtain the rate of change of current gas concentration in the refrigerator's storage compartment, including:

[0059] S131. Periodically obtain the gas concentration in the refrigerator's storage compartment;

[0060] S132. Based on the gas concentration obtained this time and the gas concentration obtained previously, determine the current rate of change of gas concentration.

[0061] As mentioned above, the rate of change of gas concentration at time t2 is (M2-M1) / (t2-t1). At time t3, the detected gas concentration in the storage compartment is M3. Therefore, the rate of change of gas concentration at time t3 is (M3-M2) / (t3-t2), where t2-t1 = t3-t2. By periodically acquiring and continuously determining the current rate of change of gas concentration, the reliability of the refrigerator temperature control method can be improved, ensuring that the temperature of the refrigerator storage compartment remains within a suitable range.

[0062] In some embodiments, the refrigerator temperature control method further includes:

[0063] S14. Based on the current gas concentration change rate, the first concentration change rate, and the second concentration change rate, start the compressor when it is determined that the current gas concentration change rate is less than the first concentration change rate, and shut down the compressor when it is determined that the current gas concentration change rate is greater than the second concentration change rate.

[0064] In some embodiments, S14 further includes: maintaining the current operating state of the compressor unchanged when it is determined that the current gas concentration change rate is greater than or equal to the first concentration change rate and less than or equal to the second concentration change rate.

[0065] The refrigerator temperature control method, device, system, and refrigerator provided in this application control the temperature of the refrigerator storage compartment by controlling the start and stop of the compressor based on the relationship between the current gas concentration change rate and the first and second concentration change rates corresponding to the temperature control setting. The refrigerator temperature control method provided in this application is simple and highly reliable, can save energy, and effectively prevents the spoilage of stored food.

[0066] In some embodiments, before obtaining the current temperature control setting of the refrigerator, the method further includes:

[0067] S10. Confirm that the temperature control setting command has been received.

[0068] It is understandable that receiving a temperature control setting command indicates that the user has adjusted the temperature control setting. Users can adjust the temperature control setting using conventional techniques, such as rotating the thermostat, manually entering the desired setting on the refrigerator's display screen, or remotely adjusting the temperature control setting via a mobile app.

[0069] In some embodiments, after starting the compressor when it is determined that the current gas concentration change rate is less than the first concentration change rate, the method further includes:

[0070] Obtain the real-time rate of change of gas concentration in the refrigerator's storage compartment;

[0071] When it is determined that the rate of change of real-time gas concentration is greater than the second rate of change of concentration, the compressor is shut down.

[0072] In some embodiments, when it is determined that the current gas concentration change rate is greater than the second concentration change rate, after shutting down the compressor, the method further includes:

[0073] Obtain the real-time rate of change of gas concentration in the refrigerator's storage compartment;

[0074] The compressor is started when it is determined that the real-time gas concentration change rate is less than the first concentration change rate.

[0075] It is understandable that when a refrigerator is plugged in and running, it continuously acquires the rate of change of the current gas concentration and compares it with the first and second rates of change of the concentration corresponding to its current temperature control setting. This allows it to control the compressor to turn on and off, keeping the temperature of the storage compartment within a suitable range, effectively preventing food spoilage, and saving energy.

[0076] Accordingly, please refer to Figure 3 This application embodiment also provides a refrigerator temperature control device 100, including:

[0077] The acquisition module 10 is used to acquire the current temperature control setting of the refrigerator;

[0078] The determination module 20 is used to determine the first concentration change rate and the second concentration change rate corresponding to the current temperature control level based on the current temperature control level and the corresponding relationship table. The corresponding relationship table includes the correspondence between the refrigerator's temperature control level and the gas concentration change rate that triggers the compressor to start / stop. The first concentration change rate represents the gas concentration change rate that triggers the compressor to start under the current temperature control level, and the second concentration change rate represents the gas concentration change rate that triggers the compressor to stop under the current temperature control level. The first concentration change rate is less than the second concentration change rate.

[0079] The acquisition module 10 is also used to acquire the current rate of change of gas concentration in the refrigerator's storage compartment;

[0080] The control module 30 is used to start the compressor when it is determined that the current gas concentration change rate is less than the first concentration change rate, and to shut down the compressor when it is determined that the current gas concentration change rate is greater than the second concentration change rate, based on the current gas concentration change rate, the first concentration change rate, and the second concentration change rate.

[0081] In some embodiments, the refrigerator temperature control device 100 further includes a detection module 40 for periodically detecting the gas concentration in the refrigerator's storage compartment, and an acquisition module 10 for determining the current gas concentration change rate based on the gas concentration detected this time and the gas concentration detected previously.

[0082] In some embodiments, the detection module 40 is further configured to detect the temperature control setting command, and the acquisition module 10 is configured to acquire the current temperature control setting of the refrigerator according to the temperature control setting command.

[0083] It is understood that the refrigerator temperature control device 100 provided in this application corresponds to the refrigerator temperature control method provided in this application. In order to keep the instruction manual concise, the same or similar parts can be referred to the content of the refrigerator temperature control method section, and will not be repeated here.

[0084] Each module in the aforementioned refrigerator temperature control device 100 can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in the server, or stored in the server's memory as software, so that the processor can call and execute the operations corresponding to each module. The processor can be a central processing unit (CPU), a microprocessor, a microcontroller, etc.

[0085] The above-mentioned refrigerator temperature control method and / or refrigerator temperature control device 100 can be implemented in the form of a computer-readable instruction.

[0086] Accordingly, embodiments of this application also provide a refrigerator temperature control system, including:

[0087] A gas concentration sensor is installed in the refrigerator's storage compartment, at the bottom of the compartment, to obtain the gas concentration in the compartment.

[0088] Memory, which stores computer-readable instructions;

[0089] The thermostat includes a storage unit and a processing unit. The storage unit stores computer-readable instructions. The processing unit is connected to the gas concentration sensor and the storage unit. The processing unit is used to invoke the computer-readable instructions to execute the above-mentioned refrigerator temperature control method.

[0090] Fourthly, embodiments of this application also provide a refrigerator, which includes the aforementioned refrigerator temperature control system.

[0091] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

Claims

1. A refrigerator temperature control method, characterized by, include: Get the current temperature control setting of the refrigerator; Based on the current temperature control setting and its corresponding relationship table, a first concentration change rate and a second concentration change rate corresponding to the current temperature control setting are determined. The relationship table includes the correspondence between the refrigerator's temperature control setting and the gas concentration change rate that triggers the compressor to start / stop. The first concentration change rate represents the gas concentration change rate that triggers the compressor to start at the current temperature control setting, and the second concentration change rate represents the gas concentration change rate that triggers the compressor to stop at the current temperature control setting. The first concentration change rate is less than the second concentration change rate. The higher the temperature control setting, the lower the corresponding temperature, and the higher the corresponding first and second concentration change rates. Obtain the rate of change of the current gas concentration in the storage compartment of the refrigerator; Based on the current gas concentration change rate, the first concentration change rate, and the second concentration change rate, when it is determined that the current gas concentration change rate is less than the first concentration change rate, the compressor is started; and when it is determined that the current gas concentration change rate is greater than the second concentration change rate, the compressor is shut down. The step of obtaining the rate of change of the current gas concentration in the storage compartment of the refrigerator includes: The gas concentration in the storage compartment of the refrigerator is periodically measured; The rate of change of the current gas concentration is determined based on the gas concentration obtained this time and the gas concentration obtained previously.

2. The refrigerator temperature control method according to claim 1, characterized in that, After starting the compressor, the method further includes: Obtain the real-time rate of change of gas concentration in the storage compartment of the refrigerator; When it is determined that the rate of change of the real-time gas concentration is greater than the rate of change of the second concentration, the compressor is shut down.

3. The refrigerator temperature control method according to claim 1, characterized in that, After shutting down the compressor, the method further includes: Obtain the real-time rate of change of gas concentration in the storage compartment of the refrigerator; When it is determined that the rate of change of the real-time gas concentration is less than the rate of change of the first concentration, the compressor is started.

4. The refrigerator temperature control method according to claim 1, characterized in that, Before obtaining the current temperature control setting of the refrigerator, the method further includes: Confirmation that the temperature control setting command has been received.

5. A refrigerator temperature control device, characterized in that, include: The acquisition module is used to obtain the current temperature control setting of the refrigerator; The determining module is used to determine a first concentration change rate and a second concentration change rate corresponding to the current temperature control setting based on the current temperature control setting and a corresponding relationship table. The corresponding relationship table includes the correspondence between the refrigerator's temperature control setting and the gas concentration change rate that triggers the compressor to start / stop. The first concentration change rate represents the gas concentration change rate that triggers the compressor to start at the current temperature control setting, and the second concentration change rate represents the gas concentration change rate that triggers the compressor to stop at the current temperature control setting. The first concentration change rate is greater than the second concentration change rate. The higher the temperature control setting, the lower the corresponding temperature, and the higher the corresponding first and second concentration change rates. The acquisition module is also used to acquire the current rate of change of gas concentration in the storage compartment of the refrigerator; The control module is configured to, based on the current gas concentration change rate, the first concentration change rate, and the second concentration change rate, start the compressor when it is determined that the current gas concentration change rate is less than the first concentration change rate, and shut down the compressor when it is determined that the current gas concentration change rate is less than the second concentration change rate; The step of obtaining the rate of change of the current gas concentration in the storage compartment of the refrigerator includes: The acquisition module periodically acquires the gas concentration in the storage compartment of the refrigerator; The rate of change of the current gas concentration is determined based on the gas concentration obtained this time and the gas concentration obtained previously.

6. The refrigerator temperature control device according to claim 5, characterized in that, The refrigerator temperature control device also includes a detection module for periodically detecting the gas concentration in the refrigerator's storage compartment. The acquisition module is used to determine the current gas concentration change rate based on the gas concentration detected this time and the gas concentration detected previously.

7. The refrigerator temperature control device according to claim 6, characterized in that, The detection module is also used to detect the temperature control setting command, and the acquisition module is used to acquire the current temperature control setting of the refrigerator according to the temperature control setting command.

8. A refrigerator temperature control system, characterized in that, include: A gas concentration sensor is installed in the refrigerator storage compartment, at the bottom of the storage compartment, to obtain the gas concentration in the storage compartment; A temperature controller includes a storage unit and a processing unit. The storage unit stores computer-readable instructions. The processing unit is signal-connected to the gas concentration sensor and the storage unit. The processing unit is used to invoke the computer-readable instructions to execute the refrigerator temperature control method as described in any one of claims 1 to 4.

9. A refrigerator, characterized in that, The refrigerator includes the refrigerator temperature control system as described in claim 8.

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