Refrigerator and control method and device for refrigerator

Abstract

The invention relates to the technical field of intelligent household appliances, and discloses a refrigerator and a control method and device for the refrigerator. The refrigerator comprises a refrigerator body which comprises a water outlet; the drainage pipe comprises a water inlet end, a ventilation end and a water outlet end, the water inlet end is communicated with the drainage port, the ventilation end is communicated with the external space, and the water inlet end is communicated with the ventilation end; the valve part is arranged at the ventilation end of the drainage pipe and used for opening or closing the ventilation end of the drainage pipe; and the water outlet end of the drainage pipe is inserted into the water receiving box. The problem that the water outlet of the refrigerator is iced and blocked is solved, and bubble sound generated when outside air enters the refrigerator is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, for example, to a refrigerator, and a control method and device for a refrigerator. Background Art

[0002] Nowadays, more and more users are using freezers to store items such as food that require low temperatures. During freezer use, frost forms on the evaporator, reducing the freezer's cooling efficiency. Therefore, once the ambient conditions inside the freezer meet the defrosting requirements, the frost on the evaporator needs to be heated to melt the frost and reduce its impact on evaporator efficiency. The defrost water formed by the melted frost is discharged from the compressor compartment through the freezer's drain. Because the drain pipe connects the compressor compartment to the outside world at both ends, the outside air near the drain meets the cold air inside the compressor compartment at the drain, freezing on the water and causing blockage.

[0003] In the related art, a bellows is provided at the drain outlet of the drain pipe, and the bellows is inserted into a water receiving box so that the water in the water receiving box forms a water seal at the drain outlet of the drain pipe, thereby isolating the compressor chamber from the outside air, reducing the heat exchange between the air in the compressor chamber and the outside air, and thereby reducing the problem of outside air freezing and clogging at the drain outlet.

[0004] During the public implementation process, it was found that the relevant technology has at least the following problems:

[0005] While related technologies can reduce the problem of ice and blockage at the drain outlet, the water seal at the drain outlet creates a closed space within the freezer. When the freezer door is opened, hot air from the outside enters the freezer, reducing the density of the gas inside. When the freezer door is closed, the freezer is under negative pressure, and the compressor compartment is also under negative pressure. Gas in the external space connected to the drain pipe can enter the compressor compartment through the drain pipe. This gas forms bubbles in the water seal, causing a bubbling sound.

[0006] It should be noted that the information disclosed in the above-mentioned background section is only intended to enhance understanding of the background of this application and may include information that does not constitute prior art known to those of ordinary skill in the art. It should be noted that the information disclosed in the above-mentioned background section is only intended to enhance understanding of the background of this application and may include information that does not constitute prior art known to those of ordinary skill in the art. Summary of the Invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a refrigerator, a control method and a device for the refrigerator, which reduce the problem of ice blockage at the refrigerator drain outlet and reduce the bubbling sound caused by external air entering the refrigerator.

[0009] In some embodiments, a refrigerator is provided, comprising: a refrigerator body, comprising a drain outlet; a drain pipe, comprising a water inlet end, a vent end and a water outlet end, the water inlet end being connected to the drain outlet, the vent end being connected to the external space, and the water inlet end being connected to the vent end; a valve component, arranged at the vent end of the drain pipe, the valve component being used to open or close the vent end of the drain pipe; and a water receiving box, the water outlet end of the drain pipe being inserted into the water receiving box.

[0010] Optionally, the valve component includes: a solenoid valve, including a passage and a valve core, the two ends of the passage are respectively a first air vent and a second air vent, the first air vent is connected to the ventilation end of the drain pipe, and the second air vent is connected to the external space; the valve core can be controlled to move relative to the passage to open or close the passage.

[0011] Optionally, the valve component includes: a valve tongue, including a rotating part and a stop part, the rotating part is arranged at the edge of the stop part, the rotating part is rotatably connected to the pipe wall of the vent end of the drain pipe, and the stop part can rotate relative to the drain pipe to open or close the vent end of the drain pipe.

[0012] In some embodiments, a control method for a refrigerator is provided, which is applied to the refrigerator as described in the above embodiments, the valve component includes a solenoid valve, and the control method includes: when the refrigerator is in a closed state, obtaining pressure information inside the refrigerator; determining the working parameters of the solenoid valve based on the pressure information; and controlling the operation of the solenoid valve based on the working parameters.

[0013] Optionally, the step of determining the working parameters of the solenoid valve according to the pressure information includes: determining the pressure difference according to the pressure information and a preset air pressure value; and determining the working parameters of the solenoid valve according to the pressure difference.

[0014] Optionally, the step of determining the working parameters of the solenoid valve based on the pressure difference includes: determining the preset pressure difference range in which the pressure difference is located; obtaining the working parameters of the solenoid valve corresponding to the preset pressure difference range based on the preset pressure difference range in which the pressure difference is located; wherein the working parameters include the opening angle and the opening time.

[0015] Optionally, according to the working parameters, the step of controlling the operation of the solenoid valve includes: controlling the opening angle of the solenoid valve to the maximum opening angle, and continuously running for a set time; wherein the set time is proportional to the size of the pressure difference; or, controlling the opening angle of the solenoid valve to a preset angle, and continuously running for a target time; wherein the preset angle is proportional to the size of the pressure difference.

[0016] Optionally, after the step of controlling the operation of the solenoid valve according to the working parameters, it also includes: obtaining the current pressure information in the refrigerator; determining the current pressure difference based on the current pressure information and the preset air pressure value; determining the target parameters of the solenoid valve based on the current pressure difference; and controlling the operation of the solenoid valve according to the target parameters.

[0017] Optionally, obtaining the pressure information in the refrigerator includes: obtaining the duration of the door being in an open state in response to a closing signal of the door; and determining the pressure information corresponding to the duration of the door being in an open state according to the duration of the door.

[0018] Optionally, obtaining pressure information inside the refrigerator includes: obtaining a closing signal of the door, timing the duration of the closing and obtaining the pressure value inside the cabinet; when the duration of the closing reaches a preset duration, the minimum value of the multiple pressure values ​​obtained is used as the pressure information.

[0019] In some embodiments, a control device for a refrigerator is provided, which is installed on the refrigerator as described in the above embodiments, and includes a processor and a memory storing program instructions. The processor is configured to execute the control method for the refrigerator as described in any of the above embodiments when running the program instructions.

[0020] The refrigerator, control method, and device for the refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0021] The refrigerator provided by the embodiment of the present disclosure uses a drain pipe with a water inlet end, a water outlet end and a vent end, and the water inlet end is connected to the drain port, and the vent end is connected to the external space, so that the internal space of the refrigerator body is connected to the external space. When the refrigerator body is in a negative pressure state, the outside air enters the interior of the refrigerator body through the drain pipe to reduce the negative pressure inside the refrigerator body, thereby reducing the bubble sound generated by the outside air entering the interior of the refrigerator through the water outlet end. Furthermore, by arranging a valve part at the vent end, when the refrigerator body is in a negative pressure state, the valve part is opened, thereby opening the vent end. In this way, when the refrigerator body is in a non-negative pressure state, the heat exchange amount between the outside air and the cold air in the refrigerator body can be reduced, thereby reducing the problem of ice blockage at the drain port of the refrigerator body.

[0022] The control method for a refrigerator provided by the disclosed embodiments uses pressure information within the refrigerator to determine whether the refrigerator body is in a negative pressure state, and then determines whether the solenoid valve needs to be opened to reduce the negative pressure within the refrigerator body and the bubbling sound caused by external air entering the refrigerator through the water outlet. Furthermore, when the solenoid valve needs to be opened, the pressure information is used to determine the operating parameters of the solenoid valve, improve the control accuracy of the solenoid valve, reduce the amount of external air entering through the ventilation end, and thus avoid ice blockage at the drain outlet.

[0023] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0025] Figure 1 This is a schematic diagram of the assembly structure of a drain pipe and a water receiving box in a refrigerator provided by an embodiment of the present disclosure;

[0026] Figure 2 Schematic diagram of the assembly structure of a drain pipe and a water receiving box in another refrigerator provided by an embodiment of the present disclosure;

[0027] Figure 3 yes Figure 2 A schematic diagram of the structure of the tongue in the embodiment shown;

[0028] Figure 4 is a schematic diagram of a control method for a refrigerator provided by an embodiment of the present disclosure;

[0029] Figure 5 is a schematic diagram of another control method for a refrigerator provided by an embodiment of the present disclosure;

[0030] Figure 6 is a schematic diagram of a control device for a refrigerator provided by an embodiment of the present disclosure;

[0031] Figure 7 is a structural schematic diagram of another refrigerator provided by an embodiment of the present disclosure;

[0032] Figure 8 It is a structural schematic diagram of the water collection box provided in an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 100, refrigerator; 10, refrigerator body; 20, drain pipe; 201, water inlet; 202, water outlet; 203, vent; 204, water guide plate; 301, solenoid valve; 302, valve tongue; 303, rotating portion; 304, stopper; 305, limiter; 40, water collection box; 401, raised tube; 402, vent pipe; 403, water collection trough; 404, vent hole; 405, molecular sieve; 406, water storage space; 407, overflow trough;

[0035] 60. Control device for a refrigerator; 600. Processor; 601. Memory; 602. Communication interface; 603. Bus. DETAILED DESCRIPTION

[0036] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0037] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0038] Unless otherwise stated, the term "plurality" means two or more.

[0039] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0040] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0041] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0042] Combine Figure 1 and Figure 2 As shown, an embodiment of the present disclosure provides a refrigerator 100, comprising: a refrigerator body 10, a drain pipe 20, a valve component, and a water receiving box 40. The refrigerator body 10 includes a drain port. The drain pipe 20 includes a water inlet end 201, a vent end 203, and a water outlet end 202. The water inlet end 201 is connected to the drain port, the vent end 203 is connected to the external space, and the water inlet end 201 is connected to the vent end 203. The valve component is provided at the vent end 203 of the drain pipe 20, and the valve component is used to open or close the vent end 203 of the drain pipe 20. The water outlet end 202 of the drain pipe 20 is inserted into the water receiving box 40.

[0043] The refrigerator provided by the embodiment of the present disclosure is provided by using a drain pipe 20 having a water inlet end 201, a water outlet end 202 and a vent end 203, and the water inlet end 201 is connected to the drain port, and the vent end 203 is connected to the external space, so that the internal space of the refrigerator body 10 is connected to the external space. When the refrigerator body 10 is in a negative pressure state, external air enters the refrigerator body 10 through the drain pipe 20 to reduce the negative pressure inside the refrigerator body 10, thereby reducing the bubble sound generated by the external air entering the refrigerator through the water outlet end 202. Further, by arranging a valve part at the vent end 203, when the refrigerator body 10 is in a negative pressure state, the valve part is opened, and the vent end 203 is opened. In this way, when the refrigerator body 10 is in a non-negative pressure state, the heat exchange amount between the external air and the cold air in the refrigerator body 10 is reduced, thereby reducing the problem of ice blockage in the drain port of the refrigerator body 10.

[0044] Specifically, the water receiving box 40 includes a water receiving trough, and the water outlet end 202 of the drain pipe 20 is inserted into the water receiving trough. The height of the water outlet of the water receiving trough is higher than the height of the water outlet end 202 of the drain pipe 20 to form a water seal at the water outlet end 202 of the drain pipe 20.

[0045] Optionally, combined Figure 1 As shown, the valve assembly includes a solenoid valve 301. The solenoid valve 301 comprises a passageway and a valve core. The passageway has a first vent and a second vent at either end. The first vent is connected to the vent end 203 of the drain pipe 20, while the second vent is connected to the outside world. The valve core can be controlled to move relative to the passageway to open or close it.

[0046] In this embodiment, a solenoid valve 301 is provided to control the movement of the valve core as needed, thereby opening a passage to allow outside air to enter the refrigerator body 10, reducing the negative pressure within the refrigerator body 10 and reducing the problem of outside air entering the refrigerator through the water seal at the water outlet end 202 and causing bubbling noise. Alternatively, the passage is closed to reduce the amount of heat exchange between the outside air and the cold air in the refrigerator body 10, thereby reducing the problem of ice blockage at the drain outlet of the refrigerator body 10.

[0047] Specifically, when the refrigerator body 10 is under a relatively high negative pressure, the control valve core rotates in a first direction relative to the passage to open the passage and allow outside air to enter the refrigerator body 10. When the passage is open and the refrigerator body 10 is under a non-negative pressure or a relatively low negative pressure, the control valve core rotates in a second direction relative to the passage to close the passage, thereby reducing the amount of heat exchange between the outside air and the cold air in the refrigerator body 10.

[0048] Optionally, combined Figure 2 and Figure 3As shown, the valve member includes a valve tongue 302. The valve tongue 302 includes a rotating portion 303 and a stop portion 304. The rotating portion 303 is disposed at the edge of the stop portion 304 and is rotatably connected to the wall of the vent end 203 of the drain pipe 20. The stop portion 304 can rotate relative to the drain pipe 20 to open or close the vent end 203 of the drain pipe 20.

[0049] In this embodiment, the valve tongue 302 is provided so that when the refrigerator body 10 is under non-negative pressure, the stopper 304 naturally droops under the action of gravity, closing the vent end 203 and reducing the amount of heat exchange between the outside air and the cold air in the refrigerator body 10. When the refrigerator body 10 is under negative pressure, the outside air near the vent end 203 is sucked, pushing the valve tongue 302 to rotate relative to the wall of the vent end 203 of the drain pipe 20, and the outside air is sucked into the refrigerator body 10 through the vent end 203, reducing the negative pressure in the refrigerator body 10 and reducing the bubbling sound caused by the outside air entering the refrigerator through the water outlet end 202.

[0050] Optionally, combined Figure 2 As shown, when the valve member includes a valve tongue 302, the vent end 203 of the drain pipe 20 is provided with a limiter 305. The limiter 305 partially blocks the vent, and the limiters 305 and the rotating portion 303 are located on opposite sides of the vent. When the valve tongue 302 naturally droops, the stopper 304 abuts the limiter 305. Thus, when the valve tongue 302 naturally droops, the vent end 203 of the drain outlet is sealed by the stopper 304 and the limiter 305, further reducing the problem of external air entering the interior of the refrigerator body 10 and causing ice to block the drain outlet.

[0051] Optionally, the refrigerator further includes a molecular sieve. The molecular sieve is disposed within the vent end 203 of the drain pipe 20 and is used to filter water molecules from the air flowing through the molecular sieve. This allows the molecular sieve to absorb water molecules from the air entering the refrigerator body 10, further reducing the risk of external air entering the refrigerator body 10 and potentially causing ice to clog the drain outlet.

[0052] Optionally, the molecular sieve includes a housing and a water absorbing member. The housing includes a vent hole, and the water absorbing member is disposed in the vent hole and can absorb water molecules. The two ends of the vent hole are respectively connected to the inner space of the drain pipe 20 and the external space.

[0053] Optionally, combined Figure 8As shown, the water receiving box 40 includes a box body, a raised tube 401, and a vent tube 402. The box body defines a water storage space 406. The vent tube 402 is disposed within the raised tube 401. One end of the vent tube 402 penetrates the sidewall of the water storage space 406 to form a vent hole 404. A water receiving trough 403 is constructed between the outer wall of the vent tube 402, the sidewall of the water storage space 406, and the inner wall of the raised tube 401. The water outlet end 202 of the drain pipe 20 is inserted into the water receiving trough 403, with a distance between the water outlet end 202 of the drain pipe 20 and the bottom wall of the water receiving trough 403. The water outlet of the water receiving trough 403 is higher than the water outlet end 202 of the drain pipe 20, and the air inlet end of the vent tube 402 is higher than the water outlet of the water receiving trough 403. The water outlet of the water receiving trough 403 is connected to the water storage space 406. The water outlet end 202 of the drain pipe 20 is located between the outer wall of the vent pipe 402 and the inner wall of the raised pipe 401. Part of the vent pipe 402 is located inside the drain pipe. There is a distance between the inner wall of the drain pipe 20 and the outer wall of the vent pipe 402, and there is a distance between the outer wall of the drain pipe 20 and the inner wall of the raised pipe 401.

[0054] In this embodiment, a raised tube 401 and a vent tube 402 are provided to form a water receiving trough 403 formed by the inner tube wall of the raised tube 401 and the outer tube wall of the vent tube 402, thereby receiving water flowing out of the water outlet 202 of the drain pipe 20. By setting the water outlet of the water receiving trough 403 at a higher height than the water outlet 202 of the drain pipe 20, a watertight seal is achieved at the water outlet 202 of the drain pipe 20, reducing the ingress of external air into the drain pipe 20 through the water in the water receiving trough 403, thereby reducing the bubbling sound generated when external air enters the interior of the refrigerator body 10. By setting the air inlet end of the vent tube 402 at a higher height than the water outlet of the water receiving trough 403, the water level in the water receiving trough 403 is lower than the air inlet end of the vent tube 402, thereby reducing the problem of defrost water entering the vent tube 402 and causing defrost water to overflow. In this way, when the pressure difference inside the refrigerator body 10 is relatively small, external air can be supplied into the refrigerator body 10 through the vent holes 404 .

[0055] Specifically, the molecular sieve 405 is also disposed in the vent 404 .

[0056] Optionally, combined Figure 8 As shown, the raised pipe further includes an overflow trough 407. The overflow trough 407 is connected to the water receiving trough 403, and the trough wall of the overflow trough 407 is lower than the trough wall of the water receiving trough 403. The upper end of the overflow trough 407 is configured as a water outlet of the water receiving trough 403.

[0057] In this embodiment, an overflow trough 407 is provided, and the upper end of the overflow trough 407 is used as the water outlet of the water receiving trough 403, so that the height of the trough body of the overflow trough 407 is used to limit the water level in the water receiving trough 403, thereby reducing the water level of the defrost water above the height of the air inlet end of the vent pipe 402, thereby reducing the problem of water outflow caused by the vent pipe 402 out of the water receiving box 40.

[0058] Optionally, the drain pipe 20 includes a pipe body and a water guide plate 204. The water guide plate 204 is disposed on the inner wall of the pipe body and is located at the drain end 202. The water guide plate 204 can shield the air inlet end of the vent pipe 402. A water outlet is formed between the side wall of the water guide plate 204 and the inner wall of the pipe body, allowing water entering the water inlet end 201 to reach the water outlet end 202 through the water outlet.

[0059] Combine Figure 1 The refrigerator shown in the embodiment of the present disclosure provides a control method for a refrigerator, which is applied to the refrigerator as described in the above embodiment. The execution subject of the method can be a processor, and the valve part includes a solenoid valve, such as Figure 4 As shown, the control method includes:

[0060] S401: When the refrigerator is in a closed state, the processor obtains pressure information inside the refrigerator.

[0061] S402: The processor determines the operating parameters of the solenoid valve according to the pressure information.

[0062] S403: The processor controls the solenoid valve to operate according to the operating parameters.

[0063] The control method for a refrigerator provided by the disclosed embodiments uses pressure information within the refrigerator to determine whether the refrigerator body is in a negative pressure state, and then determines whether the solenoid valve needs to be opened to reduce the negative pressure within the refrigerator body and the bubbling sound caused by external air entering the refrigerator through the water outlet. Furthermore, when the solenoid valve needs to be opened, the pressure information is used to determine the operating parameters of the solenoid valve, improve the control accuracy of the solenoid valve, reduce the amount of external air entering through the ventilation end, and thus avoid ice blockage at the drain outlet.

[0064] Optionally, the step of determining the working parameters of the solenoid valve according to the pressure information includes: determining the pressure difference according to the pressure information and a preset air pressure value; and determining the working parameters of the solenoid valve according to the pressure difference.

[0065] In this embodiment, by determining the pressure differential, it is determined whether the refrigerator body is in a negative pressure state, and further whether the solenoid valve needs to be controlled to open or close, thereby reducing the bubbling sound caused by external air entering the refrigerator through the water outlet, and reducing the problem of ice clogging the drain outlet due to excessive external air entering the vent. In addition, the pressure differential can be used to determine the degree of negative pressure in the refrigerator body, so as to accurately control the solenoid valve to control the amount of external air added to the refrigerator body according to actual needs, further reducing the problem of ice clogging the drain outlet due to excessive external air entering the vent.

[0066] For example, a larger pressure difference indicates a greater negative pressure in the refrigerator body, and more external air needs to be added to the refrigerator body. A smaller pressure difference indicates a smaller negative pressure in the refrigerator body, and less external air needs to be added to the refrigerator body.

[0067] Specifically, after the door of the refrigerator body is opened, outside air enters the refrigerator body. After the door of the refrigerator body is closed, the outside air temperature drops, the air pressure in the refrigerator body decreases, and the pressure difference increases, and the negative pressure in the refrigerator body increases. Then, the solenoid valve is opened to open the ventilation end, allowing outside air to enter the refrigerator body through the drain pipe, reducing the negative pressure in the refrigerator body. This causes outside air to enter the refrigerator body through the water outlet end of the drain pipe, thereby emitting a bubbling sound. In addition, when the negative pressure in the refrigerator body is reduced, the solenoid valve is closed to reduce the problem of ice blockage in the drain outlet caused by excessive outside air entering the ventilation end.

[0068] Optionally, determining the pressure difference according to the pressure information and the preset air pressure value includes: calculating an absolute value of a difference between the pressure information and the preset air pressure value as the pressure difference.

[0069] Optionally, the step of determining the working parameters of the solenoid valve based on the pressure difference includes: determining the preset pressure difference range in which the pressure difference is located; obtaining the working parameters of the solenoid valve corresponding to the preset pressure difference range based on the preset pressure difference range in which the pressure difference is located; wherein the working parameters include the opening angle and the opening time.

[0070] In this embodiment, the degree of negative pressure within the refrigerator body can be determined by the preset pressure differential range, allowing for more precise control of the opening and closing of the solenoid valve. This improves the accuracy of solenoid valve control and reduces ice blockage in the drain outlet caused by excessive air entering the vent port.

[0071] Specifically, the greater the pressure difference, the greater the opening angle and / or the longer the opening time in the working parameters of the solenoid valve.

[0072] Optionally, according to the working parameters, the step of controlling the operation of the solenoid valve includes: controlling the opening angle of the solenoid valve to the maximum opening angle, and continuously running for a set time; wherein the set time is proportional to the size of the pressure difference.

[0073] In this embodiment, the solenoid valve's opening angle is controlled to its maximum opening angle to accelerate the rate at which outside air enters the refrigerator. Furthermore, by continuously operating the valve for a set duration, the amount of outside air entering the refrigerator can be precisely controlled by the duration of the opening, thereby reducing the risk of ice clogging the refrigerator drain outlet due to heat exchange between the outside air and the refrigerator body.

[0074] Specifically, the valve core of the solenoid valve is controlled to rotate in a first direction to a maximum opening angle and to continue operating for a set time period.

[0075] Optionally, according to the preset pressure differential range in which the pressure difference is located, the working parameters of the solenoid valve corresponding to the preset pressure differential range are obtained, including: when the pressure difference is X1, the time length is set to the first set time length T1; when the pressure difference is X2, the time length is set to the second set time length T2; when the pressure difference is X3, the time length is set to the third set time length T3; when the pressure difference is X4, the time length is set to the fourth set time length T4; wherein, T1>T2>T3>T4.

[0076] It will be understood that in this embodiment, X1, X2, X3, and X4 merely represent pressure differential levels, rather than specific numerical values. The pressure differential levels represent the magnitude of the pressure differential. Among them, the magnitude of the pressure differential represented by X4 is the greatest, and the magnitude of the pressure differential represented by X4 is greater than the magnitude of the pressure differential represented by X3. The magnitude of the pressure differential represented by X3 is greater than the magnitude of the pressure differential represented by X2, and the magnitude of the pressure differential represented by X2 is greater than the magnitude of the pressure differential represented by X1.

[0077] Optionally, the value range of the first set time length T1 includes: (4, 5.5] seconds. The specific value of the first set time length includes: 4.1 seconds, 4.7 seconds or 5.5 seconds.

[0078] Optionally, the value range of the second set time length T2 includes: (2.5, 4] seconds. The specific value of the second set time length includes: 2.6 seconds, 3 seconds or 4 seconds.

[0079] Optionally, a value range of the third set time length T3 includes: (1.5, 2.5] seconds. Specific values ​​of the third set time length include: 1.6 seconds, 2 seconds or 2.5 seconds.

[0080] Optionally, the value range of the fourth set time length T4 includes: (0.5, 1.5] seconds. The specific value of the fourth set time length includes: 0.5 seconds, 1 second or 1.5 seconds.

[0081] Exemplarily, the maximum opening angle is 70°, 80° or 90°.

[0082] Optionally, according to the working parameters, the step of controlling the operation of the solenoid valve includes: controlling the opening angle of the solenoid valve to a preset angle and continuously running for a target time; wherein the preset angle is proportional to the size of the pressure difference.

[0083] In this embodiment, the solenoid valve is kept open for a target duration, allowing outside air to enter the refrigerator, reducing negative pressure within the refrigerator. Simultaneously, the solenoid valve is opened to a preset angle, precisely controlling the amount of outside air entering the refrigerator at varying angles. This reduces the risk of ice clogging the refrigerator drain due to heat exchange between the outside air and the refrigerator.

[0084] Specifically, the valve core of the solenoid valve is controlled to rotate in a first direction to a preset angle and continue to operate for a target time.

[0085] Optionally, according to the preset pressure difference range in which the pressure difference is located, the working parameters of the solenoid valve corresponding to the preset pressure difference range are obtained, including: when the pressure difference is in the first pressure change range, the opening angle of the solenoid valve is the first preset angle λ1, and the opening time is the target time; when the pressure difference is in the second pressure change range, the target opening angle of the solenoid valve is the second preset angle λ2, and the opening time is the target time; when the pressure difference is in the third pressure change range, the target opening angle of the solenoid valve is the third preset angle λ3, and the opening time is the target time; wherein, the upper limit value of the first pressure change range is less than the lower limit value of the second pressure change range, and the upper limit value of the second pressure change range is less than the lower limit value of the third pressure change range; λ1<λ2<λ3.

[0086] Optionally, the value range of the first preset angle includes: [7.5°, 22.5°]. Specific values ​​of the first preset angle include: 7.5°, 15°, or 22.4°.

[0087] Optionally, the value range of the second preset angle includes: [22.5°, 37.5°). Specific values ​​of the second preset angle include: 22.5°, 35°, or 37.4°.

[0088] Optionally, the value range of the third preset angle includes: [37.5°, 52.5°], and the specific value of the second preset angle includes: 37.5°, 45°, or 52.5°.

[0089] Optionally, the target duration has a value range of [0.5, 1.5) seconds. Specific values ​​of the target duration include 0.5 seconds, 1 second, or 1.5 seconds.

[0090] Combine Figure 5As shown, the embodiment of the present disclosure provides another control method for a refrigerator, comprising:

[0091] S501: When the refrigerator is in a closed state, the processor obtains pressure information inside the refrigerator.

[0092] S502: The processor determines the operating parameters of the solenoid valve according to the pressure information.

[0093] S503: The processor controls the solenoid valve to operate according to the operating parameters.

[0094] S504: The processor obtains current pressure information in the refrigerator.

[0095] S505: The processor determines the current pressure difference based on the current pressure information and the preset air pressure value.

[0096] S506: The processor determines the target parameters of the solenoid valve according to the current pressure difference.

[0097] S507: The processor controls the solenoid valve to operate according to the target parameters.

[0098] In this embodiment, by obtaining the current pressure information in the refrigerator and determining the current pressure difference, it is determined whether the negative pressure level in the refrigerator body has been reduced to the target state after the last control of the solenoid valve, that is, the current negative pressure state in the refrigerator body is determined. If the current negative pressure state is still high, it is necessary to open the solenoid valve again to allow external air to enter the refrigerator body to reduce the negative pressure in the refrigerator body. By detecting again, it is possible to reduce the problem that after the external air enters the refrigerator body, the external air temperature drops, causing the air pressure in the refrigerator body to drop again, and then the pressure difference increases again, which in turn causes the negative pressure level in the refrigerator body to increase, and the problem of bubbling sound caused by the external air entering the refrigerator body through the water outlet end of the drain pipe.

[0099] Optionally, after controlling the solenoid valve to operate according to the target parameters, it also includes: obtaining the current pressure information in the refrigerator; determining the current pressure difference based on the current pressure information and the preset air pressure value; and closing the solenoid valve when the current pressure difference is less than the pressure difference threshold.

[0100] In this way, if the current pressure difference is less than the pressure difference threshold, it indicates that the negative pressure inside the refrigerator is low, and there is no need to continue to add external air to the refrigerator body to control the solenoid valve to close. This reduces the heat exchange between the external air and the cold air at the refrigerator drain outlet, and reduces the problem of water molecules in the external air freezing at the drain outlet when they are cooled, causing the drain outlet to become clogged.

[0101] Optionally, obtaining the pressure information in the refrigerator includes: obtaining the duration of the door being in an open state in response to a closing signal of the door; and determining the pressure information corresponding to the duration of the door being in an open state according to the duration of the door.

[0102] In this embodiment, the duration of the opening is used to determine the impact of external air on the air pressure inside the refrigerator body after the door is opened, and then the pressure information corresponding to the duration of the opening is determined based on the duration of the opening, thereby improving the accuracy of the pressure information inside the refrigerator body.

[0103] For example, the longer the door is open, the greater the amount of outside air that enters the refrigerator body, and the greater the influence of the outside air on the temperature inside the refrigerator body. As a result, when the door is just closed, the pressure information inside the refrigerator body is slightly greater than the preset pressure value, the pressure difference is small, and the negative pressure level inside the refrigerator is small. The shorter the door is open, the smaller the amount of outside air that enters the refrigerator body. When the door is just closed, the outside air entering the refrigerator body is quickly cooled, and the pressure value is less than the preset pressure value, the pressure difference is large, and the negative pressure level inside the refrigerator is large.

[0104] Specifically, the refrigerator further includes: a door switch detection component, which is arranged on the refrigerator body and is used to detect the door switch status.

[0105] Optionally, according to the duration of the on-state, the pressure information corresponding to the duration of the on-state is determined, including: when the duration of the on-state is within the first duration interval, the pressure information is P1; when the duration of the on-state is within the second duration interval, the pressure information is P2; when the duration of the on-state is within the third duration interval, the pressure information is P3; when the duration of the on-state is within the fourth duration interval, the pressure information is P4; wherein, the upper limit value of the first duration interval is less than the lower limit value of the second duration interval, the upper limit value of the second duration interval is less than the lower limit value of the third duration interval, and the upper limit value of the third duration interval is less than the lower limit value of the fourth duration interval.

[0106] It should be understood that in this embodiment, P1, P2, P3, and P4 merely represent pressure levels, rather than specific values. The pressure levels represent the magnitude of the pressure values. P1 represents the highest pressure value, P2 represents a smaller pressure value than P1, P3 represents a smaller pressure value than P2, and P4 represents a smaller pressure value than P3.

[0107] Exemplarily, the first duration interval is (0, 30) seconds, the second duration interval is [30, 50) seconds, the third duration interval is [50, 120) seconds, and the fourth duration interval is [120, 180) seconds.

[0108] Optionally, when the pressure information is P1, the pressure difference is X1; when the pressure information is P2, the pressure difference is X2; when the pressure information is P3, the pressure difference is X3; when the pressure information is P4, the pressure difference is X4.

[0109] Optionally, obtaining the duration of the door body being in the open state includes: obtaining the opening signal and closing signal of the door body; determining the time corresponding to the opening signal as the first time, and determining the time corresponding to the closing signal as the second time; calculating the absolute value of the difference between the first time and the second time as the duration of the door body being in the open state.

[0110] Optionally, obtaining pressure information inside the refrigerator includes: obtaining a closing signal of the door, timing the duration of the closing and obtaining the pressure value inside the cabinet; when the duration of the closing reaches a preset duration, the minimum value of the multiple pressure values ​​obtained is used as the pressure information.

[0111] In this embodiment, the pressure inside the cabinet is detected to determine the pressure condition inside the cabinet. Specifically, the minimum value among the multiple pressure values ​​obtained is used as pressure information. This can determine the maximum change in cabinet pressure (i.e., the change in cabinet pressure to the minimum value) caused by the cabinet cooling the outside air after the door is closed, thereby facilitating precise control of the opening or closing of the solenoid valve.

[0112] Specifically, the refrigerator further includes an air pressure sensor, which is disposed inside the refrigerator and is used to detect the air pressure inside the refrigerator.

[0113] Combine Figure 6 As shown, an embodiment of the present disclosure provides a control device 60 for a refrigerator, comprising a processor 600 and a memory 601. Optionally, the device 60 may further comprise a communication interface 602 and a bus 603. The processor 600, the communication interface 602, and the memory 601 may communicate with each other via the bus 603. The communication interface 602 may be used for information transmission. The processor 600 may call the logic instructions in the memory 601 to execute the control method for the refrigerator of the above embodiment.

[0114] In addition, the logic instructions in the memory 601 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0115] Memory 601, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of the present disclosure. Processor 600 executes the program instructions / modules stored in memory 601 to execute functional applications and data processing, thereby implementing the control method for a refrigerator in the above-described embodiments.

[0116] The memory 601 may include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 601 may include a high-speed random access memory and a non-volatile memory.

[0117] Combine Figure 7 As shown, the refrigerator further includes the aforementioned control device 60 for the refrigerator. The control device 60 for the refrigerator is mounted on the refrigerator body 10. The installation relationship described herein is not limited to placement within the refrigerator body 10 but also includes installation connections with other components of the refrigerator 100, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will appreciate that the control device 60 for the refrigerator can be adapted to any applicable refrigerator body, thereby realizing other feasible embodiments.

[0118] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned control method for a refrigerator.

[0119] The technical solutions of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, among other media capable of storing program code.

[0120] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0121] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0122] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical functional division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, and can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0123] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A refrigerator, characterized in that: include: The freezer body, including the drain outlet; The drainage pipe includes a water inlet end, a vent end, and a water outlet end, wherein the water inlet end is connected to the drain outlet, the vent end is connected to the external space, and the water inlet end is connected to the vent end; A valve component is provided at the vent end of the drain pipe, and the valve component is used to open or close the vent end of the drain pipe; A water receiving box is provided in which the water outlet end of the drainage pipe is inserted.

2. The refrigerator according to claim 1, characterized in that: Valve parts include: A solenoid valve comprising a passage and a valve core, wherein the two ends of the passage are respectively a first vent and a second vent, the first vent being connected to the vent end of the drain pipe, and the second vent being connected to the external space; the valve core can be controlled to move relative to the passage to open or close the passage; or The valve tongue includes a rotating part and a stop part. The rotating part is arranged at the edge of the stop part and is rotatably connected to the pipe wall of the vent end of the drain pipe. The stop part can rotate relative to the drain pipe to open or close the vent end of the drain pipe.

3. A control method for a refrigerator, applied to the refrigerator according to claim 1, characterized in that: The valve element includes a solenoid valve, and the control method includes: When the refrigerator is in a closed state, obtaining pressure information inside the refrigerator; Determine the working parameters of the solenoid valve based on the pressure information; According to the working parameters, the solenoid valve is controlled to work.

4. The control method according to claim 3, characterized in that: Based on the pressure information, the steps to determine the working parameters of the solenoid valve include: Determine the pressure difference based on the pressure information and the preset air pressure value; According to the pressure difference, the working parameters of the solenoid valve are determined.

5. The control method according to claim 4, characterized in that: Based on the pressure difference, the steps to determine the working parameters of the solenoid valve include: Determining the preset pressure differential range within which the pressure differential lies; According to the preset pressure differential range in which the pressure differential is located, obtaining the working parameters of the solenoid valve corresponding to the preset pressure differential range; Among them, the working parameters include opening angle and opening time.

6. The control method according to claim 5, characterized in that: According to the working parameters, the steps of controlling the solenoid valve operation include: Control the opening angle of the solenoid valve to the maximum opening angle and keep running for the set time; The set time is proportional to the pressure difference; or Control the opening angle of the solenoid valve to the preset angle and continue running for the target duration; The preset angle is proportional to the magnitude of the pressure difference.

7. The control method according to claim 3, characterized in that: After the step of controlling the solenoid valve according to the working parameters, the following steps are also included: Get the current pressure information in the refrigerator; Determine the current pressure difference based on the current pressure information and the preset air pressure value; Determine the target parameters of the solenoid valve according to the current pressure difference; According to the target parameters, the solenoid valve is controlled to work.

8. The control method according to any one of claims 3 to 7, characterized in that: Get the pressure information inside the refrigerator, including: In response to a door closing signal, obtaining a duration of the door being in an open state; According to the opening duration, pressure information corresponding to the opening duration is determined.

9. The control method according to any one of claims 3 to 7, characterized in that: Get the pressure information inside the refrigerator, including: Obtain the door closing signal, time the closing duration and obtain the pressure value inside the cabinet; When the closing duration reaches a preset duration, the minimum value among the obtained multiple pressure values ​​is used as the pressure information.

10. A control device for a refrigerator, installed in the refrigerator according to claim 1, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for a refrigerator according to any one of claims 3 to 9 when running the program instructions.

Images