Refrigerator control method and apparatus, refrigerator, and storage medium

Abstract

Embodiments of the present application provide a refrigerator control method, device, refrigerator and storage medium; the method comprises: obtaining the frost condensation parameter of the evaporator, when the frost condensation parameter is greater than the first condensation threshold, obtaining the temperature change characteristic of the working chamber, when the temperature change characteristic indicates that defrosting is needed, removing the first stage frost from the evaporator through the condenser, when the first stage frost is removed, monitoring the first real-time frost condensation parameter of the water pan, and when the first real-time frost condensation parameter is greater than the second condensation threshold, removing the second stage frost from the evaporator through the heater. This method divides the frost removal into two stages, which can effectively and evenly remove the frost, improve the defrosting efficiency and the reliability of the refrigerator defrosting, and alleviate the technical problem of poor defrosting effect caused by relying only on the heater defrosting in the current refrigerator defrosting technology.

Description

Technical Field

[0001] This invention relates to the field of refrigerator technology, specifically to a refrigerator control method, device, refrigerator, and storage medium. Background Technology

[0002] With the development of refrigerator technology, frost-free air-cooled refrigerators have emerged and become the mainstream in the market. These refrigerators can automatically defrost, eliminating the need for manual defrosting by users and greatly improving the user experience.

[0003] Currently, the defrosting principle of frost-free air-cooled refrigerators is to defrost the evaporator by using a heater located below the bottom of the evaporator inside the refrigerator. In this process, the heat emitted by the heater first contacts the bottom of the evaporator to defrost the bottom, and then the heat is transferred to the top of the evaporator to defrost the top. This working principle cannot achieve the desired effect for refrigerators with taller evaporators.

[0004] In other words, current refrigerator defrosting technology suffers from a poor defrosting effect due to relying solely on a heater for defrosting. Summary of the Invention

[0005] To alleviate the technical problem of control lag caused by the fixed control cycle during machine operation in current heat pump system control technology, this invention provides a refrigerator control method, device, refrigerator, and storage medium.

[0006] In a first aspect, embodiments of the present invention provide a refrigerator control method, the refrigerator including an evaporator and an evaporator defrosting device, the evaporator defrosting device including a condenser disposed adjacent to the evaporator and a heater and a drip tray located below the evaporator; the method includes:

[0007] Obtain the frost condensation parameters of the evaporator;

[0008] When the frost condensation parameter is greater than the first condensation threshold, the temperature change characteristics of the working chamber are obtained;

[0009] When the temperature change indicates that defrosting is required, the evaporator is subjected to a first stage of frost removal via the condenser.

[0010] During the first stage of frost removal, the first real-time frost condensation parameters of the water receiving tray are monitored;

[0011] When the first real-time frost condensation parameter is greater than the second condensation threshold, the evaporator is subjected to a second stage of frost removal through the heater.

[0012] In some embodiments, obtaining the frost condensation parameters of the evaporator includes:

[0013] A first pressure value of the evaporator is obtained by a first pressure sensor located below the evaporator.

[0014] The frost condensation parameters are determined based on the first pressure value.

[0015] In some embodiments, monitoring the real-time frost condensation parameters of the water receiving tray includes:

[0016] The first real-time pressure value of the water receiving tray is obtained by a second pressure sensor installed below the water receiving tray;

[0017] The first real-time frost condensation parameters are determined based on the first real-time pressure value.

[0018] In some embodiments, the first-stage frost removal of the evaporator via the condenser includes:

[0019] The flow of hot gas is controlled through the condenser to perform a first stage of frost removal on the evaporator.

[0020] In some embodiments, the work chamber includes a freezer and a refrigerator, and acquiring the temperature change characteristics of the work chamber includes:

[0021] Obtain the first temperature change parameter of the freezer compartment;

[0022] When the first temperature change parameter is less than the first temperature threshold, the second temperature change parameter of the refrigerator compartment is obtained;

[0023] When the second temperature change parameter is less than the second temperature threshold, a temperature change feature indicating that defrosting is required is generated.

[0024] When the first temperature change parameter is greater than the first temperature threshold, or the second temperature change parameter is greater than the second temperature threshold, a temperature change feature indicating that defrosting is not required is generated.

[0025] In some embodiments, after the second stage of frost removal is performed on the evaporator by the heater when the first real-time frost condensation parameter is greater than the second condensation threshold, the method further includes:

[0026] During the second stage of frost removal, the second real-time frost condensation parameters of the evaporator are obtained;

[0027] Frost removal stops when the second real-time frost condensation parameter matches the initial condensation threshold.

[0028] In some embodiments, after obtaining the second real-time frost condensation parameter of the evaporator, the method further includes:

[0029] The heating temperature of the heater is controlled according to the second real-time frost condensation parameter until the second real-time frost condensation parameter matches the initial condensation threshold.

[0030] Secondly, embodiments of the present invention provide a refrigerator control device, the refrigerator including an evaporator and an evaporator defrosting device, the evaporator defrosting device including a condenser disposed adjacent to the evaporator and a heater and a water tray located below the evaporator; the device includes:

[0031] The first acquisition module is used to acquire the frost condensation parameters of the evaporator;

[0032] The second acquisition module is used to acquire the temperature change characteristics of the working chamber when the frost condensation parameter is greater than the first condensation threshold.

[0033] The first frost removal module is used to perform a first-stage frost removal on the evaporator through the condenser when the temperature change characteristics indicate that defrosting is required.

[0034] The monitoring module is used to monitor the first real-time frost condensation parameters of the water receiving tray during the first stage of frost removal.

[0035] The second frost removal module is used to perform a second stage of frost removal on the evaporator through the heater when the first real-time frost condensation parameter is greater than the second condensation threshold.

[0036] Thirdly, embodiments of the present invention provide a refrigerator, including an evaporator, an evaporator defrosting device, a memory, and a processor; the memory stores a computer program, which, when executed by the processor, implements the method described in the first aspect.

[0037] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing a computer program, which, when executed by one or more processors, implements the method described in the first aspect.

[0038] Compared with the prior art, one or more embodiments of the present invention can bring at least the following beneficial effects:

[0039] This invention provides a refrigerator control method, device, refrigerator, and storage medium. The method includes: acquiring frost condensation parameters of the evaporator; acquiring temperature change characteristics of the working chamber when the frost condensation parameters are greater than a first condensation threshold; performing a first stage of frost removal on the evaporator through the condenser when the temperature change characteristics indicate that defrosting is required; monitoring a first real-time frost condensation parameter of the drip tray during the first stage of frost removal; and performing a second stage of frost removal on the evaporator through the heater when the first real-time frost condensation parameters are greater than a second condensation threshold. The solution provided in this application divides frost removal into two stages. In the first stage, the evaporator is defrosted by the gas inside the condenser, which ensures that the temperature of the working chamber is within the set temperature range and that the temperature of the working chamber does not fluctuate significantly during the defrosting stage. At the same time, the frost accumulates near the drip tray and the heater. Then, in the second stage, the defrosting is performed by the heater, which makes the defrosting effect of the heater better. In other words, this application can remove frost evenly and effectively, improve defrosting efficiency and the reliability of refrigerator defrosting, and alleviate the technical problem of poor defrosting effect caused by relying solely on the heater for defrosting in current refrigerator defrosting technology. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the first type of refrigerator control method provided in the embodiments of the present invention;

[0042] Figure 2 This is a second flowchart illustrating the refrigerator control method provided in this embodiment of the invention;

[0043] Figure 3 This is a schematic block diagram of a refrigerator provided in an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram of a refrigerator control device provided in an embodiment of the present invention. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0046] Figure 1 This illustrates a first flowchart of a refrigerator control method provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the refrigerator control method provided in this application includes:

[0047] Step 110: Obtain the frost condensation parameters of the evaporator.

[0048] In this application, please refer to Figure 3 The refrigerator includes an evaporator and an evaporator defrosting device. The evaporator defrosting device includes a condenser arranged adjacent to the evaporator and a heater and a water tray located below the evaporator. The evaporator assembly is connected to the refrigerator condenser through two three-way valves. A pressure sensor is installed on the evaporator assembly, and temperature sensors are installed in the refrigerator compartment and the freezer compartment.

[0049] In this application, the frost condensation parameter refers to the change in the pressure value of the evaporator during the operation of the refrigerator compared to the initial pressure value.

[0050] In this embodiment, when the refrigerator is powered on, the evaporator compartment will experience temperature changes due to prolonged cooling and the user opening and closing the refrigerator or freezer compartment doors. This can cause the evaporator components to freeze and frost. Under these conditions, the freezing and frost caused by temperature changes in the evaporator components will lead to changes in their pressure values.

[0051] In some embodiments, obtaining the frost condensation parameters of the evaporator includes: obtaining a first pressure value of the evaporator using a first pressure sensor disposed below the evaporator; and determining the frost condensation parameters based on the first pressure value.

[0052] Specifically, a pressure sensor (first pressure sensor) is installed on the evaporator assembly. When the refrigerator is not powered on, there is no ice or frost on the evaporator, and the initial pressure value is P0. When the refrigerator is powered on, ice and frost will form on the evaporator. At this time, the first pressure value of the first pressure sensor will change. The first pressure value of the first pressure sensor is obtained, and the pressure change value, i.e. the frost condensation parameter, is determined based on the initial pressure value P0 and the first pressure value.

[0053] Step 120: When the frost condensation parameter is greater than the first condensation threshold, obtain the temperature change characteristics of the working chamber.

[0054] In this application, the temperature change characteristics include those requiring defrosting and those not requiring defrosting.

[0055] In this embodiment, the working chamber includes a freezer compartment and a refrigerator compartment.

[0056] In this embodiment, when the frost condensation parameter is not greater than the first condensation threshold ΔP1, the evaporator continues to work and cool until the frost condensation parameter reaches the first condensation threshold.

[0057] In some embodiments, obtaining the temperature change characteristics of the working chamber includes: obtaining a first temperature change parameter of the freezer compartment; obtaining a second temperature change parameter of the refrigerator compartment when the first temperature change parameter is less than a first temperature threshold; generating a temperature change characteristic indicating that defrosting is required when the second temperature change parameter is less than a second temperature threshold; and generating a temperature change characteristic indicating that defrosting is not required when the first temperature change parameter is greater than the first temperature threshold or the second temperature change parameter is greater than the second temperature threshold.

[0058] Specifically, when the frost condensation parameter is greater than the first condensation threshold ΔP1, the temperature change of the freezer compartment is determined. That is, the first temperature change parameter of the freezer compartment is obtained, and it is determined whether the first temperature change parameter is greater than the first temperature threshold ΔT1. If the first temperature change parameter is greater than the first temperature threshold ΔT1, a temperature change feature indicating that defrosting is not required is generated, that is, the evaporator continues to work and cool. If the first temperature change parameter is not greater than the first temperature threshold ΔT1, the temperature change of the refrigerator compartment is determined. That is, the second temperature change parameter of the refrigerator compartment is obtained, and it is determined whether the second temperature change parameter is greater than the second temperature threshold ΔT2. If the second temperature change parameter is greater than the second temperature threshold ΔT2, a temperature change feature indicating that defrosting is not required is generated, that is, the evaporator continues to work and cool. If the second temperature change parameter is not greater than the second temperature threshold ΔT2, a temperature change feature indicating that defrosting is required is generated.

[0059] Step 130: When the temperature change characteristics indicate that defrosting is required, the evaporator is subjected to the first stage of frost removal through the condenser.

[0060] In some embodiments, the first-stage frost removal of the evaporator through the condenser includes: controlling the flow of hot gas through the condenser to perform the first-stage frost removal of the evaporator.

[0061] Specifically, when the temperature change indicates that defrosting is required, the three-way valves F1 and F2 (such as...) connected to the condenser... Figure 3 As shown in the diagram, the condenser is opened one after another, and the hot gas inside the condenser flows through the evaporator (the passage is close to the evaporator). The heat generated by this flowing gas performs the first stage of frost removal on the evaporator.

[0062] Step 140: During the first stage of frost removal, monitor the first real-time frost condensation parameters of the water receiving tray.

[0063] In this application, the first real-time frost condensation parameter refers to the change in the real-time pressure value of the drip tray during refrigerator operation compared to the initial pressure value.

[0064] In this embodiment, during the first stage of frost removal, ice and frost will accumulate near the water tray and the steel pipe heater (i.e., the heater).

[0065] In some embodiments, monitoring the real-time frost condensation parameters of the water receiving pan includes: acquiring a first real-time pressure value of the water receiving pan using a second pressure sensor disposed below the water receiving pan; and determining the first real-time frost condensation parameters based on the first real-time pressure value.

[0066] Step 150: When the first real-time frost condensation parameter is greater than the second condensation threshold, the evaporator is subjected to a second stage of frost removal through the heater.

[0067] Specifically, during the first stage of frost removal, ice and frost accumulate near the water tray and the steel pipe heater (i.e., the heater). The water tray is used to collect the ice and frost. Therefore, the first real-time pressure value of the water tray is obtained in real time through the second pressure sensor to determine the first real-time frost condensation parameter and whether it is greater than the second condensation threshold ΔP2. If the first real-time frost condensation parameter is not greater than the second condensation threshold ΔP2, the first stage of frost removal continues. If the first real-time frost condensation parameter is greater than the second condensation threshold ΔP2, the three-way valves F1 and F2 are closed, and the steel pipe heater is used to perform the second stage of frost removal on the evaporator. Since the ice and frost accumulate near the water tray and the steel pipe heater during the first stage of frost removal, the operation of the steel pipe heater at this time will not cause a large temperature change in the evaporator compartment. This cycle is repeated to achieve efficient defrosting of the evaporator compartment.

[0068] It should be noted that in this embodiment, the second condensation threshold ΔP2 is less than the first condensation threshold ΔP1.

[0069] In some embodiments, after the second stage of frost removal is performed on the evaporator by the heater when the first real-time frost condensation parameter is greater than the second condensation threshold, the method further includes: during the second stage of frost removal, acquiring the second real-time frost condensation parameter of the evaporator; and stopping the frost removal when the second real-time frost condensation parameter matches the initial condensation threshold.

[0070] In this embodiment, matching means that the second real-time frost condensation parameter is not higher than 5% of the initial condensation threshold (i.e., the initial pressure value P0 mentioned above), or the two are equal.

[0071] In some embodiments, after obtaining the second real-time frost condensation parameter of the evaporator, the method further includes: controlling the heating temperature of the heater according to the second real-time frost condensation parameter until the second real-time frost condensation parameter matches the initial condensation threshold.

[0072] In this embodiment, the evaporator continues to operate for cooling until the second real-time frost condensation parameter matches the initial condensation threshold.

[0073] As can be seen from the above, the method provided by this invention divides frost removal into two stages. In the first stage, the evaporator is defrosted by the gas in the condenser, which ensures that the temperature of the working chamber is within the set temperature range and that the temperature of the working chamber does not fluctuate significantly during the defrosting stage. At the same time, the frost accumulates near the drip tray and the heater. Then, in the second stage, the heater is used for defrosting, which makes the defrosting effect of the heater better. That is, this application can remove frost evenly and effectively, improve the defrosting efficiency and the reliability of refrigerator defrosting, and alleviate the technical problem of poor defrosting effect caused by relying solely on the heater for defrosting in current refrigerator defrosting technology.

[0074] The refrigerator control method provided in this application will now be further explained in conjunction with specific scenarios.

[0075] Currently, the mainstream refrigerators on the market are frost-free, air-cooled refrigerators, which do not require manual defrosting and can automatically defrost. The main device for automatic defrosting in current frost-free refrigerators is a defrost heater at the bottom of the evaporator. During operation, the heat emitted by the defrost heater first contacts the frost at the bottom of the evaporator and then continues to the top of the evaporator, defrosting the upper space. However, for side-by-side refrigerators with higher evaporators, defrosting the upper layer of the evaporator cannot be done efficiently. Therefore, a steel pipe heater is needed. This steel pipe heater reaches a high temperature, and the high-temperature environment around the heater accelerates component aging and may cause safety issues. Furthermore, the inability to defrost the upper part of the evaporator in a timely manner affects the refrigerator's cooling effect, compromises the refrigerator's reliability, and hinders defrosting efficiency.

[0076] This invention aims to provide a novel evaporator assembly and a novel refrigerator control method to achieve efficient defrosting of the evaporator, improve defrosting efficiency, enhance refrigerator performance, and ensure that the temperature of the refrigerator compartment and freezer compartment does not fluctuate significantly during the defrosting stage. Specifically, the evaporator assembly is connected to the refrigerator condenser via two three-way valves. The evaporator assembly is equipped with a pressure sensor, and the refrigerator and freezer compartments have temperature sensors. Since frost and ice will form on the evaporator assembly during operation, the pressure sensor can receive pressure changes during the evaporator's operation, thereby controlling the opening and closing of the three-way valves. The first stage of frost removal is achieved by using high-temperature gas flowing inside the condenser. In the second stage of frost removal, a steel pipe heater operates for efficient defrosting.

[0077] Figure 2 A second flowchart of the refrigerator control method provided in an embodiment of the present invention is shown, as follows: Figure 2 As shown, the refrigerator control method provided in this application includes:

[0078] Step 201: The refrigerator is powered on at any time.

[0079] In this embodiment, when the refrigerator is powered on, the evaporator compartment will experience temperature changes due to prolonged cooling and the user opening and closing the refrigerator or freezer compartment doors. This can cause the evaporator components to freeze and frost. Under these conditions, the freezing and frost caused by temperature changes in the evaporator components will lead to changes in their pressure values.

[0080] Step 202: The initial pressure value of the pressure sensor is P0. Check whether the change in the sensor pressure value (corresponding to the frost condensation parameter mentioned above) is greater than ΔP1 (corresponding to the first condensation threshold mentioned above).

[0081] In this embodiment, the pressure value of the pressure sensor on the evaporator (corresponding to the first pressure sensor mentioned above) is first obtained, and the change value of the sensor pressure value is determined. Then, it is determined whether the change value of the sensor pressure value is greater than ΔP1. If the change value of the sensor pressure value is not greater than ΔP1, step 208 is executed; if the change value of the sensor pressure value is greater than ΔP1, step 203 is executed.

[0082] Step 203: Is the temperature change in the freezer compartment (corresponding to the first temperature change parameter mentioned above) greater than ΔT1 (corresponding to the first temperature threshold mentioned above)?

[0083] In this embodiment, following step 202, when the change in sensor pressure value is greater than ΔP1, the temperature change of the freezer compartment is determined. That is, the temperature change of the freezer compartment is obtained through the temperature sensor inside the freezer compartment, and it is determined whether the temperature change of the freezer compartment is greater than ΔT1. If it is greater, step 208 is executed; if it is not greater, step 204 is executed.

[0084] Step 204: Is the temperature change in the refrigerator compartment (corresponding to the second temperature change parameter mentioned above) greater than ΔT2 (corresponding to the second temperature threshold mentioned above)?

[0085] In this embodiment, following step 203, when the temperature change in the freezer compartment is not greater than ΔT1, the temperature change in the refrigerator compartment is determined. That is, the temperature change in the refrigerator compartment is obtained by the temperature sensor in the refrigerator compartment, and it is determined whether the temperature change in the refrigerator compartment is greater than ΔT2. If it is greater, step 208 is executed; if it is not greater, step 205 is executed.

[0086] Step 205: Three-way valves F1 and F2 open successively, and the hot gas in the condenser flows through the evaporator in its passage (the passage is close to the evaporator) to perform partial de-icing and defrosting.

[0087] In this embodiment, following step 204, if the temperature change in the refrigerator compartment is not greater than ΔT2, then the three-way valves F1 and F2 connected to the condenser are opened successively (e.g., Figure 3 As shown in the diagram, hot gas in the condenser flows through the evaporator (the passage is close to the evaporator), and the heat generated by this flowing gas performs the first stage of frost removal on the evaporator.

[0088] Step 206: Is the change in sensor pressure value greater than ΔP2 (ΔP2 < ΔP1)?

[0089] In this embodiment, during the first stage of frost removal on the evaporator, ice and frost will accumulate near the water tray and the steel pipe heater (corresponding to the heater mentioned above). The water tray is used to collect ice and frost. At this time, the sensor pressure value change of the water tray (corresponding to the first real-time frost condensation parameter mentioned above) is monitored in real time, and it is determined whether the sensor pressure value change is greater than ΔP2 (corresponding to the second condensation threshold mentioned above). If it is not greater, the process returns to step 205 to continue the first stage of frost removal. If it is greater, the process proceeds to step 207.

[0090] It should be noted that in this embodiment, the second condensation threshold ΔP2 is less than the first condensation threshold ΔP1.

[0091] Step 207: Three-way valves F1 and F2 are closed, and the cycle enters the next stage.

[0092] In this embodiment, following step 206, when the sensor pressure change value is greater than ΔP2, the three-way valves F1 and F2 are closed, and a steel pipe heater is used to perform the second stage of frost removal on the evaporator (i.e., entering the next stage cycle). Here, since ice and frost accumulate near the water tray and steel pipe heater during the first stage of frost removal, the operation of the steel pipe heater at this time will not cause a large temperature change in the evaporator compartment. This cycle is repeated to achieve efficient defrosting of the evaporator compartment.

[0093] Step 208: The evaporator continues to work and cool until the pressure sensor value reaches the relevant change amount.

[0094] In this embodiment, if the change in sensor pressure value in step 202 is not greater than ΔP1, or the change in temperature of the freezer compartment in step 203 is greater than ΔT1, or the change in temperature of the refrigerator compartment in step 204 is greater than ΔT2, the evaporator continues to work and cool until the value of the pressure sensor reaches the relevant change amount.

[0095] Based on the above scenario, it can be seen that in this application, frost removal is divided into two stages. In the first stage, the evaporator is defrosted by the gas in the condenser, which ensures that the temperature of the working chamber is within the set temperature range, preventing large fluctuations in the temperature of the working chamber during the defrosting stage. At the same time, it causes frost to accumulate near the drip tray and the heater. Then, in the second stage, the heater is used for defrosting, making the defrosting effect of the heater better. In other words, this application can remove frost evenly and effectively, improving defrosting efficiency and the reliability of refrigerator defrosting, and alleviating the technical problem of poor defrosting effect caused by relying solely on the heater for defrosting in current refrigerator defrosting technology.

[0096] Accordingly, this embodiment of the invention also provides a refrigerator control device; in this embodiment, the refrigerator includes an evaporator and an evaporator defrosting device, the evaporator defrosting device includes a condenser arranged adjacent to the evaporator and a heater and a water receiving tray located below the evaporator; Figure 4 A schematic diagram of a refrigerator control device provided in an embodiment of the present invention is shown; as follows: Figure 4 As shown, the refrigerator control device includes:

[0097] The first acquisition module 410 is used to acquire the frost condensation parameters of the evaporator;

[0098] The second acquisition module 420 is used to acquire the temperature change characteristics of the working chamber when the frost condensation parameter is greater than the first condensation threshold.

[0099] The first frost removal module 430 is used to perform a first-stage frost removal on the evaporator through the condenser when the temperature change characteristics indicate that defrosting is required.

[0100] Monitoring module 440 is used to monitor the first real-time frost condensation parameters of the water receiving tray during the first stage of frost removal;

[0101] The second frost removal module 450 is used to perform a second stage of frost removal on the evaporator through the heater when the first real-time frost condensation parameter is greater than the second condensation threshold.

[0102] In some embodiments, the first acquisition module 410 is further configured to acquire a first pressure value of the evaporator by means of a first pressure sensor disposed below the evaporator; and determine the frost condensation parameters based on the first pressure value.

[0103] In some embodiments, the second acquisition module 420 is further configured to acquire a first temperature change parameter of the freezer compartment; acquire a second temperature change parameter of the refrigerator compartment when the first temperature change parameter is less than a first temperature threshold; generate a temperature change feature indicating that defrosting is required when the second temperature change parameter is less than a second temperature threshold; and generate a temperature change feature indicating that defrosting is not required when the first temperature change parameter is greater than the first temperature threshold or the second temperature change parameter is greater than the second temperature threshold.

[0104] In some embodiments, the first frost removal module 430 is further configured to control the flow of hot gas through the condenser to perform a first stage of frost removal on the evaporator.

[0105] In some embodiments, the monitoring module 440 is further configured to acquire a first real-time pressure value of the water receiving pan via a second pressure sensor disposed below the water receiving pan; and determine the first real-time frost condensation parameter based on the first real-time pressure value.

[0106] That is, the refrigerator control device provided in this embodiment of the invention divides frost removal into two stages. In the first stage, the gas in the condenser defrosts the evaporator, which can ensure that the temperature of the working chamber is within the set temperature range, and ensure that the temperature of the working chamber does not fluctuate greatly during the defrosting stage. At the same time, it causes frost to accumulate near the drip tray and the heater. Then, in the second stage, the heater is used for defrosting, which makes the defrosting effect of the heater better. In other words, this application can remove frost evenly and effectively, improve defrosting efficiency and the reliability of refrigerator defrosting, and alleviate the technical problem of poor defrosting effect caused by relying solely on the heater for defrosting in current refrigerator defrosting technology.

[0107] Those skilled in the art will understand that the above-described modules or steps can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby storing them in a storage device for execution by the computing device, or fabricating them separately as individual integrated circuit modules, or fabricating multiple modules or steps into a single integrated circuit module. This invention is not limited to any specific hardware and software combination.

[0108] Accordingly, this invention also provides a refrigerator, which includes an evaporator, an evaporator defrosting device, a memory, and a processor; the memory stores a computer program, which, when executed by the processor, implements the refrigerator control method as described in the above embodiments.

[0109] In this embodiment, the processor is the control center of the refrigerator. It connects various parts of the refrigerator through various interfaces and lines. By running or loading software programs and / or modules stored in the memory, and calling data stored in the memory, it executes various functions of the refrigerator and processes data, thereby monitoring the refrigerator as a whole.

[0110] In this embodiment, the processor may be implemented as an application-specific integrated circuit (ASNC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field-programmable gate array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components, and is used to execute the methods in the above embodiments. The methods implemented when the computer program running on the processor is executed can be referred to the specific embodiments of the methods provided in the foregoing embodiments of this invention, and will not be repeated here.

[0111] Accordingly, embodiments of the present invention also provide a computer-readable storage medium storing a computer program, which, when executed by one or more processors, implements the method described in the above embodiments:

[0112] Obtain the frost condensation parameters of the evaporator;

[0113] When the frost condensation parameter is greater than the first condensation threshold, the temperature change characteristics of the working chamber are obtained;

[0114] When the temperature change indicates that defrosting is required, the evaporator is subjected to a first stage of frost removal via the condenser.

[0115] During the first stage of frost removal, the first real-time frost condensation parameters of the water receiving tray are monitored;

[0116] When the first real-time frost condensation parameter is greater than the second condensation threshold, the evaporator is subjected to a second stage of frost removal through the heater.

[0117] It should be noted that the computer-readable medium described above in this invention can be a computer-readable signal medium, a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0118] Accordingly, embodiments of the present invention may also include a computer program product, which includes a computer program or instructions, the computer instructions being stored in a computer-readable storage medium, and the computer program or instructions being executed by a processor to implement the refrigerator control method described in any of the above embodiments.

[0119] In summary, embodiments of the present invention provide a refrigerator control method, device, refrigerator, and storage medium; the method includes: acquiring frost condensation parameters of the evaporator; when the frost condensation parameters are greater than a first condensation threshold, acquiring temperature change characteristics of the working chamber; when the temperature change characteristics indicate that defrosting is required, performing a first stage of frost removal on the evaporator through the condenser; during the first stage of frost removal, monitoring a first real-time frost condensation parameter of the drip tray; and when the first real-time frost condensation parameter is greater than a second condensation threshold, performing a second stage of frost removal on the evaporator through the heater. The solution provided in this application divides frost removal into two stages. In the first stage, the evaporator is defrosted by the gas inside the condenser, which ensures that the temperature of the working chamber is within the set temperature range and that the temperature of the working chamber does not fluctuate significantly during the defrosting stage. At the same time, the frost accumulates near the drip tray and the heater. Then, in the second stage, the defrosting is performed by the heater, which makes the defrosting effect of the heater better. In other words, this application can remove frost evenly and effectively, improve defrosting efficiency and the reliability of refrigerator defrosting, and alleviate the technical problem of poor defrosting effect caused by relying solely on the heater for defrosting in current refrigerator defrosting technology.

[0120] In the embodiments provided in this invention, it should be understood that the disclosed systems and methods can also be implemented in other ways. The system and method embodiments described above are merely illustrative.

[0121] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0122] Furthermore, while the operations are described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous. Similarly, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the invention. Certain features described in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments.

[0123] Although the embodiments disclosed in this invention are as described above, the content is merely for the purpose of facilitating understanding of the invention and is not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and changes in form and detail of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection of this invention shall still be determined by the scope defined in the appended claims.

Claims

1. A refrigerator control method, characterized in that, The refrigerator includes an evaporator and an evaporator defrosting device. The evaporator defrosting device includes a condenser disposed adjacent to the evaporator and a heater and a drip tray located below the evaporator. The evaporator assembly is connected to the condenser via a three-way valve. The method includes: Obtain the frost condensation parameters of the evaporator; When the frost condensation parameter is greater than the first condensation threshold, the temperature change characteristics of the working chamber are obtained; When the temperature change indicates that defrosting is required, the evaporator is subjected to a first stage of frost removal through the condenser. During the first stage of frost removal, the three-way valve is opened to allow the hot gas in the condenser to flow through the evaporator. During the first stage of frost removal, the first real-time frost condensation parameters of the water receiving tray are monitored; When the first real-time frost condensation parameter is greater than the second condensation threshold, the evaporator is subjected to a second stage of frost removal by the heater. During the second stage of frost removal, the three-way valve is closed, and the evaporator is subjected to the second stage of frost removal by the heater.

2. The refrigerator control method according to claim 1, characterized in that, The process of obtaining the frost condensation parameters of the evaporator includes: A first pressure value of the evaporator is obtained by a first pressure sensor located below the evaporator. The frost condensation parameters are determined based on the first pressure value.

3. The refrigerator control method according to claim 1, characterized in that, The monitoring of real-time frost condensation parameters of the water receiving tray includes: The first real-time pressure value of the water receiving tray is obtained by a second pressure sensor installed below the water receiving tray; The first real-time frost condensation parameters are determined based on the first real-time pressure value.

4. The refrigerator control method according to claim 1, characterized in that, The first stage of frost removal of the evaporator through the condenser includes: The flow of hot gas is controlled through the condenser to perform a first stage of frost removal on the evaporator.

5. The refrigerator control method according to claim 1, characterized in that, The working chamber includes a freezer and a refrigerator, and the acquisition of temperature change characteristics of the working chamber includes: Obtain the first temperature change parameter of the freezer compartment; When the first temperature change parameter is less than the first temperature threshold, the second temperature change parameter of the refrigerator compartment is obtained; When the second temperature change parameter is less than the second temperature threshold, a temperature change feature indicating that defrosting is required is generated. When the first temperature change parameter is greater than the first temperature threshold, or the second temperature change parameter is greater than the second temperature threshold, a temperature change feature indicating that defrosting is not required is generated.

6. The refrigerator control method according to any one of claims 1 to 5, characterized in that, When the first real-time frost condensation parameter is greater than the second condensation threshold, after the second stage of frost removal is performed on the evaporator by the heater, the process further includes: During the second stage of frost removal, the second real-time frost condensation parameters of the evaporator are obtained; Frost removal stops when the second real-time frost condensation parameter matches the initial condensation threshold.

7. The refrigerator control method according to claim 6, characterized in that, After obtaining the second real-time frost condensation parameters of the evaporator, the method further includes: The heating temperature of the heater is controlled according to the second real-time frost condensation parameter until the second real-time frost condensation parameter matches the initial condensation threshold.

8. A refrigerator control device, characterized in that, The refrigerator includes an evaporator and an evaporator defrosting device. The evaporator defrosting device includes a condenser adjacent to the evaporator, a heater and a drip tray located below the evaporator, and the evaporator assembly is connected to the condenser via a three-way valve. The device includes: The first acquisition module is used to acquire the frost condensation parameters of the evaporator; The second acquisition module is used to acquire the temperature change characteristics of the working chamber when the frost condensation parameter is greater than the first condensation threshold. The first frost removal module is used to perform a first-stage frost removal on the evaporator through the condenser when the temperature change characteristics indicate that defrosting is required. During the first-stage frost removal, the three-way valve is opened to allow high-temperature gas in the condenser to flow through the evaporator. The monitoring module is used to monitor the first real-time frost condensation parameters of the water receiving tray during the first stage of frost removal. The second frost removal module is used to perform a second stage of frost removal on the evaporator through the heater when the first real-time frost condensation parameter is greater than the second condensation threshold. During the second stage of frost removal, the three-way valve is closed and the heater is used to perform the second stage of frost removal on the evaporator.

9. A refrigerator, characterized in that, It includes an evaporator, an evaporator defrosting device, a memory, and a processor; the memory stores a computer program, which, when executed by the processor, implements the method as described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, the computer program, when executed by one or more processors, implementing the method as described in any one of claims 1 to 7.

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