Refrigerator and water dispenser control method thereof

Abstract

The invention discloses a refrigerator and a water dispenser control method thereof.A hot water storage device and a cold water storage device are arranged in drinking water, output of water at different temperatures can be achieved in a hot water and cold water mixing mode, and when a water outlet instruction sent by a user is received, the target water temperature in the water outlet instruction is obtained; and the water outlet amount of the hot water storage device and the water outlet amount of the cold water storage device are adjusted according to the target water temperature, so that mixed water is output through the water outlet. By adopting the embodiment of the invention, the water temperature of the water dispenser can be set according to the requirements of different users, and the water temperature of outlet water meets the requirements of the users.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a refrigerator and a water dispenser control method thereof. Background Art

[0002] Existing household appliances are diverse, but their functions are relatively simple. Integrated appliances are gradually becoming a trend in household appliance technology innovation. Existing technologies include combining the functions of refrigerators and water dispensers. Drinking water is piped into the refrigerator's cold storage compartment for cooling, and the output is drinking water at a temperature lower than room temperature. Although refrigerators can be equipped with water dispensers, most water storage devices are directly exposed to the cold storage compartment, and the water temperature is generally the same as the compartment temperature. However, this water temperature may not always meet the needs of different users. Summary of the Invention

[0003] The purpose of the embodiments of the present invention is to provide a refrigerator and a water dispenser control method thereof, which can enable the water temperature of the water dispenser to be set according to the needs of different users, so that the water temperature of the outlet water meets the needs of the users.

[0004] To achieve the above object, an embodiment of the present invention provides a refrigerator, comprising:

[0005] a box body, in which at least one freezing chamber and a refrigerating chamber are formed;

[0006] a water dispenser, disposed within the housing, comprising a hot water storage device, a cold water storage device, and a water outlet; the hot water storage device being provided with a heating device for heating the water; and the cold water storage device being provided with an electric damper, such that when the electric damper is opened, cold air outputted by a refrigeration system flows through the electric damper into the cold water storage device;

[0007] The controller is configured as:

[0008] When receiving a water outlet instruction, obtaining the target water temperature in the water outlet instruction;

[0009] The water output of the hot water storage device and the cold water storage device is adjusted according to the target water temperature, so as to output the mixed water through the water outlet.

[0010] As an improvement to the above scheme, the hot water storage device also includes a first flow regulating valve and a first temperature sensor, the first flow regulating valve is used to regulate the first water output of the hot water storage device, and the first temperature sensor is used to detect the hot water temperature of the hot water storage device; the cold water storage device also includes a second flow regulating valve and a second temperature sensor, the second flow regulating valve is used to regulate the second water output of the cold water storage device, and the second temperature sensor is used to detect the cold water temperature of the cold water storage device.

[0011] As an improvement to the above solution, the controller is further configured to:

[0012] Acquire the real-time hot water temperature detected by the first temperature sensor, and acquire the real-time cold water temperature detected by the second temperature sensor;

[0013] The first water output is calculated according to the target water temperature, the total water output of the water outlet, the real-time hot water temperature, and the real-time cold water temperature; wherein the total water output of the water outlet is a preset constant value;

[0014] Calculating the difference between the total water output and the first water output to obtain the second water output;

[0015] The opening of the first flow regulating valve is adjusted according to the first water output, and the opening of the second flow regulating valve is adjusted according to the second water output.

[0016] As an improvement to the above solution, the first water output is calculated based on the target water temperature, the total water output of the water outlet, the real-time hot water temperature, and the real-time cold water temperature, satisfying the following formula:

[0017] S1 = S*(Tm-T2) / (T1-T2);

[0018] Among them, S1 is the first water output; S is the total water output; Tm is the target water temperature; T1 is the real-time hot water temperature; T2 is the real-time cold water temperature.

[0019] As an improvement to the above solution, the controller is further configured to:

[0020] Obtaining the real-time hot water temperature detected by the first temperature sensor;

[0021] When the real-time hot water temperature is lower than a preset first high temperature threshold, starting the heating device;

[0022] When the real-time hot water temperature is greater than a preset second high temperature threshold, the heating device is turned off; wherein the second high temperature threshold is greater than the first high temperature threshold.

[0023] As an improvement to the above solution, the controller is further configured to:

[0024] Obtaining the real-time cold water temperature detected by the second temperature sensor;

[0025] When the real-time cold water temperature is greater than a preset first low temperature threshold, opening the damper;

[0026] When the real-time cold water temperature is lower than a preset second low temperature threshold, the damper is closed; wherein the second low temperature threshold is lower than the first low temperature threshold.

[0027] As an improvement to the above solution, the hot water storage device further includes a first water inlet valve and a first pressure sensor, wherein the first pressure sensor is provided at the bottom of the hot water storage device and is used to detect a first pressure value of the hot water storage device;

[0028] The controller is further configured to:

[0029] obtaining a first pressure value detected by the first pressure sensor;

[0030] When the first pressure value is less than a preset minimum hot water storage amount, opening the first water inlet valve;

[0031] When the first pressure value is greater than a preset maximum hot water storage capacity, the first water inlet valve is closed.

[0032] As an improvement to the above solution, the cold water storage device further includes a second water inlet valve and a second pressure sensor, wherein the second pressure sensor is provided at the bottom of the cold water storage device and is used to detect a second pressure value of the cold water storage device;

[0033] The controller is further configured to:

[0034] obtaining a second pressure value detected by the second pressure sensor;

[0035] When the second pressure value is less than a preset minimum cold water storage amount, opening the second water inlet valve;

[0036] When the second pressure value is greater than a preset maximum cold water storage capacity, the second water inlet valve is closed.

[0037] To achieve the above objectives, an embodiment of the present invention further provides a method for controlling a water dispenser of a refrigerator, wherein the water dispenser includes a hot water storage device, a cold water storage device, and a water outlet. The hot water storage device is provided with a heating device for heating, and the cold water storage device is provided with an electric damper. When the electric damper is opened, cold air output by a refrigeration system flows into the cold water storage device through the electric damper. The method includes:

[0038] When receiving a water outlet instruction, obtaining the target water temperature in the water outlet instruction;

[0039] The water output of the hot water storage device and the cold water storage device is adjusted according to the target water temperature, so as to output the mixed water through the water outlet.

[0040] As an improvement to the above solution, the step of adjusting the water output of the hot water storage device and the cold water storage device according to the target water temperature includes:

[0041] Acquiring the real-time hot water temperature of the hot water storage device and the real-time cold water temperature of the cold water storage device;

[0042] The first water output is calculated according to the target water temperature, the total water output of the water outlet, the real-time hot water temperature, and the real-time cold water temperature; wherein the total water output of the water outlet is a preset constant value;

[0043] Calculating the difference between the total water output and the first water output to obtain the second water output;

[0044] The water output of the hot water storage device is adjusted according to the first water output, and the water output of the cold water storage device is adjusted according to the second water output.

[0045] Compared to the prior art, the refrigerator and water dispenser control method disclosed in the present invention, by providing a hot water storage device and a cold water storage device in the drinking water, can output water of different temperatures by mixing hot and cold water. Upon receiving a water delivery instruction from a user, the target water temperature in the delivery instruction is obtained; the water output of the hot and cold water storage devices is adjusted according to the target water temperature, so that the mixed water is delivered through the water outlet. Using this embodiment of the present invention, the water temperature of the water dispenser can be set according to the needs of different users, and the water output temperature meets the user's needs. Furthermore, because the hot water storage device is pre-stored with hot water and the cold water storage device is pre-stored with cold water, water can be delivered quickly when the user receives water, eliminating the need for long waits. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 1 is a schematic diagram of the external structure of a refrigerator provided by an embodiment of the present invention;

[0047] Figure 2 This is a schematic diagram of the internal structure of a refrigerator provided by an embodiment of the present invention;

[0048] Figure 3 1 is a schematic structural diagram of a refrigeration system in a refrigerator provided by an embodiment of the present invention;

[0049] Figure 4 is a structural schematic diagram of a hot water storage device provided by an embodiment of the present invention;

[0050] Figure 5 is a structural schematic diagram of a cold water storage device provided by an embodiment of the present invention;

[0051] Figure 6 is a schematic diagram of the connection between the controller and the controlled device provided by an embodiment of the present invention;

[0052] Figure 7This is a first working flow diagram of a controller in a refrigerator provided by an embodiment of the present invention;

[0053] Figure 8 is a second working flow diagram of the controller in the refrigerator provided by an embodiment of the present invention;

[0054] Figure 9 is a third working flow diagram of the controller in the refrigerator provided by an embodiment of the present invention;

[0055] Figure 10 is a fourth working flow diagram of the controller in the refrigerator provided by an embodiment of the present invention;

[0056] Figure 11 This is a flow chart of a method for controlling a water dispenser of a refrigerator provided by an embodiment of the present invention.

[0057] Among them, 100, refrigerator; 10, water dispenser; 11, cold storage compartment; 12, freezer compartment; 1, compressor; 2, evaporator; 3, capillary tube; 4, condenser; 20, hot water storage device; 21, heating device; 22, first water inlet; 23, first water outlet; 24, first temperature sensor; 25, first pressure sensor; 30, cold water storage device; 31, electric damper; 32, second water inlet; 33, second water outlet; 34, second temperature sensor; 35, second pressure sensor. DETAILED DESCRIPTION

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0059] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0060] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0062] See also Figure 1 , Figure 1 The figure is a schematic diagram of the external structure of a refrigerator 100 provided in an embodiment of the present invention. The refrigerator 100 of this embodiment has a roughly rectangular shape and includes a housing defining a storage space and multiple doors located at the housing opening. The doors include a door shell located on the outside of the housing, a door liner located on the inside of the housing, an upper end cover, a lower end cover, and an insulation layer located between the door shell, the door liner, the upper end cover, and the lower end cover. Typically, the insulation layer is filled with foam. The housing has a chamber, which includes a component storage cavity for accommodating refrigerator components, such as a compressor compartment, and storage space for food, etc. A water dispenser 10 is provided at the refrigerator door. The water dispenser 10 includes a hot water storage device for storing hot water, a cold water storage device for storing cold water, and a water outlet. The hot water storage device is used to store hot water, the cold water storage device is used to store cold water, and the water outlet is used to deliver mixed hot and cold water to the user.

[0063] See also Figure 2 , Figure 2 This is a schematic diagram of the internal structure of a refrigerator provided by an embodiment of the present invention. The storage space can be divided into multiple storage rooms. The storage rooms can be configured as a refrigerator 11 and a freezer 12 according to different uses. They can also include a variable temperature room, a vacuum drawer, a moisturizing drawer, etc. Each storage room corresponds to one or more doors, for example, Figure 2 The storage compartment in the middle and upper part is provided with a double-door body. The door body can be pivotally arranged at the opening of the box body, and can also be opened in a drawer-like manner to realize drawer-like storage. Figure 3 , Figure 3The schematic diagram of the structure of the refrigeration system in the refrigerator 100 provided in the embodiment of the present invention, the refrigeration system includes a compressor 1, an evaporator 2, a drying filter (not shown in the figure), a capillary tube 3, a condenser 4 and a gas-liquid separator (not shown in the figure). The working process of the refrigeration system includes a compression process, a condensation process, a throttling process and an evaporation process. The compression process is: plug in the power cord of the refrigerator, when the contacts of the thermostat are connected, the compressor 1 starts to work, the low-temperature, low-pressure refrigerant is sucked into the compressor 1, and is compressed into a high-temperature, high-pressure superheated gas in the cylinder of the compressor 1 and then discharged into the condenser 4; the condensation process is: the high-temperature, high-pressure refrigerant gas dissipates heat through the condenser 4, the temperature continues to drop, and is gradually cooled to a saturated vapor at room temperature and high pressure, and is further cooled to a saturated liquid, and the temperature no longer drops. The temperature at this time is called the condensation temperature, and the pressure of the refrigerant remains almost unchanged during the entire condensation process; the throttling process is as follows ... The process is as follows: the saturated refrigerant liquid after condensation is filtered out of moisture and impurities by a drying filter and then flows into the capillary tube 3, through which it is throttled and depressurized, and the refrigerant becomes wet steam at room temperature and low pressure; the evaporation process is as follows: the wet steam at room temperature and low pressure begins to absorb heat and vaporize in the evaporator 2, which not only reduces the temperature of the evaporator 2 and its surroundings, but also turns the refrigerant into a low-temperature, low-pressure gas. The refrigerant coming out of the evaporator 2 passes through the gas-liquid separator and returns to the compressor 1 again, repeating the above process to transfer the heat in the refrigerator to the air outside the box, thereby achieving the purpose of refrigeration.

[0064] See also Figure 4 , Figure 4 2 is a schematic structural diagram of a hot water storage device 20 provided in an embodiment of the present invention, wherein the hot water storage device 20 includes a heating device 21, a first water inlet 22, a first water outlet 23, a first temperature sensor 24 and a first pressure sensor 25; wherein, the heating device 21 is used to heat the water stored in the hot water storage device 20; a first water inlet valve is provided on the first water inlet 22, and when the first water inlet valve is opened, water is injected into the hot water storage device 20, and when the first water inlet valve is closed, water injection is stopped; a first flow regulating valve is provided on the first water outlet 23, and the first flow regulating valve is used to regulate the first water output of the hot water storage device 20; the first temperature sensor 24 is used to detect the hot water temperature of the hot water storage device 20; the first pressure sensor 25 is provided at the bottom of the hot water storage device 20, and is used to detect a first pressure value of the water stored in the hot water storage device 20, and the water storage capacity of the hot water storage device 20 can be reflected by the first pressure value.

[0065] See also Figure 5 , Figure 53 is a structural diagram of a cold water storage device 30 provided in an embodiment of the present invention, wherein the cold water storage device 30 includes an electric damper 31, a second water inlet 32, a second water outlet 33, a second temperature sensor 34 and a second pressure sensor 35; wherein, when the electric damper 31 is opened, the cold air output by the refrigeration system is fed into the cold water storage device 30 through the electric damper 31 to cool the water stored in the cold water storage device 30; a second water inlet valve is provided on the second water inlet 32, and when the second water inlet valve is opened, the cold air is fed into the cold water storage device 30. The storage device 30 is injected with water, and the water injection is stopped when the second water inlet valve is closed; the second water outlet 33 is provided with a second flow regulating valve, and the second flow regulating valve is used to adjust the second water output of the cold water storage device 30; the second temperature sensor 34 is used to detect the cold water temperature of the cold water storage device 30; the second pressure sensor 35 is provided at the bottom of the cold water storage device 30, and is used to detect the second pressure value of the water stored in the cold water storage device 30, and the water storage capacity of the cold water storage device 30 can be reflected by the second pressure value.

[0066] See also Figure 6 , Figure 6 This is a connection diagram of the controller and controlled devices provided in an embodiment of the present invention, wherein the controller is respectively connected to the heating device 21, the first temperature sensor 24, the first flow regulating valve, the first pressure sensor 25, the first water inlet valve, the electric damper 31, the second temperature sensor 34, the second flow regulating valve, the second pressure sensor 35, and the second water inlet valve. The controller can control the start and stop of the heating device 21, and control its heating power to achieve heating control of the hot water storage device 20; the controller can control the opening and closing of the electric damper, and can adjust the opening of the electric damper to achieve cooling control of the cold water storage device 30; the controller can obtain data detected by the first temperature sensor 24, the first pressure sensor 25, the second temperature sensor 34 and the second pressure sensor 35, and perform data analysis; the controller can adjust the opening of the first flow regulating valve to output hot water corresponding to the water output from the hot water storage device 20; the controller can adjust the opening of the second flow regulating valve to output cold water corresponding to the water output from the cold water storage device 30; the controller can control the opening and closing of the first water inlet valve to complete the water filling process of the hot water storage device 20; the controller can control the opening and closing of the second water inlet valve to complete the water filling process of the cold water storage device 30.

[0067] Specifically, the controller is configured to: upon receiving a water outlet instruction, obtain the target water temperature in the water outlet instruction; and adjust the water output of the hot water storage device and the cold water storage device according to the target water temperature to output the mixed water through the water outlet.

[0068] For example, see Figure 7 , Figure 7 This is the first workflow diagram of the controller in the refrigerator provided by an embodiment of the present invention. The controller is configured to execute steps S11 to S13. The water dispenser is also provided with a touch screen / touch button, through which the user can issue a water discharge instruction. For example, the touch screen / touch button is provided with a temperature adjustment button and a water discharge button. After the user selects the target water temperature, pressing the water discharge button triggers the water discharge instruction. Furthermore, the touch screen / touch button can also be provided with at least one shortcut button, each shortcut button corresponding to a preset target water temperature, which can be pre-set by the user. After the controller obtains the target water temperature, it adjusts the water output of the hot water storage device and the cold water storage device according to the target water temperature. Since hot water is pre-stored in the hot water storage device 20 and cold water is pre-stored in the cold water storage device 30, the amount of hot water and cold water that needs to be mixed can be obtained according to the target water temperature, and the mixed water is then output through the water outlet.

[0069] In this embodiment of the present invention, by providing a hot water storage device and a cold water storage device in the water dispenser, the water temperature of the water dispenser can be adjusted according to the needs of different users, and the water temperature of the water dispenser can meet the user's needs. In addition, because the hot water storage device is pre-stored with hot water and the cold water storage device is pre-stored with cold water, water can be quickly dispensed when the user receives water, eliminating the need for users to wait for a long time.

[0070] Specifically, the controller is also configured to: obtain the real-time hot water temperature detected by the first temperature sensor, and obtain the real-time cold water temperature detected by the second temperature sensor; calculate the first water output based on the target water temperature, the total water output of the water outlet, the real-time hot water temperature and the real-time cold water temperature; wherein the total water output of the water outlet is a preset constant value; calculate the difference between the total water output and the first water output to obtain the second water output; adjust the opening of the first flow regulating valve according to the first water output, and adjust the opening of the second flow regulating valve according to the second water output.

[0071] For example, see Figure 8 , Figure 8This is a second working flow diagram of the controller in the refrigerator provided by an embodiment of the present invention, wherein step S13 specifically includes steps S131 to S134. The first water outlet flow regulating valve and the second water outlet flow regulating valve are connected to the same water outlet. After the water flows out of the water outlet, it reaches the user's water receiving device. The water outlet flow rate for the user to receive water is a constant value, set to S. The first water outlet flow rate of the first water outlet flow regulating valve in the hot water storage device 20 is set to S1, and the second water outlet flow rate of the second water outlet flow regulating valve in the cold water storage device 30 is set to S2. Then, S=S1+S2 is satisfied. When S is constant, different water temperature requirements are achieved by adjusting the flow values ​​of S1 and S2 each time.

[0072] It is worth noting that the initial equation Tm = (Vh * Th + Vc * Tc) / (Vh + Vc) is constructed, where Tm is the water temperature after mixing, that is, the target water temperature, Th is the real-time hot water temperature, Vh is the volume of hot water, Tc is the real-time cold water temperature, and Vc is the volume of cold water. If the water temperature after merging needs to meet the target water temperature Tm, when the real-time hot water temperature Th and the real-time cold water temperature Tc are determined, the water temperature can be adjusted according to different volume ratios. In addition, according to the formula m = ρV, m is mass, ρ is density, and V is volume, according to the characteristics of water, under constant pressure and temperature, the density p does not vary much, so the change of density ρ is not considered in the present invention. According to the above formula, if it is necessary to mix to obtain the target water temperature Tm, when the real-time hot water temperature Th and the real-time cold water temperature Tc are determined, the water temperature can be adjusted according to different weight (or volume) ratios, that is, the water temperature can be adjusted by adjusting the flow of the first water outlet flow control valve and the second water outlet flow control valve.

[0073] It can be understood that within the same time period t, the first water output of the hot water storage device 20 is S1*t, the real-time hot water temperature is T1, and the second water output of the cold water storage device 30 is S2*t, and the real-time cold water temperature is T2. According to the above initial equation, an equivalent calculation is performed, and the first water output S1, the real-time hot water temperature T1, the second water output S2, and the real-time cold water temperature T2 are substituted into the initial equation to obtain the target water temperature Tm = (S1*T1+S2*T2) / (S1+S2) = [S1*T1+(S-S1)*T2] / S. In this formula, T1 and T2 can be obtained based on the real-time data collected by the temperature sensor, S is a constant, and there is only one variable, S1. Then, the first water output S1 can be calculated based on the target water temperature Tm, the total water output S of the water outlet, the real-time hot water temperature T1, and the real-time cold water temperature T2, satisfying the following formula:

[0074] S1 = S*(Tm-T2) / (T1-T2);

[0075] Among them, S1 is the first water output; S is the total water output; Tm is the target water temperature; T1 is the real-time hot water temperature; T2 is the real-time cold water temperature.

[0076] For example, a user sets a water temperature requirement Tm on the display panel of the water dispenser 10. Once the setting is complete, the controller collects the real-time hot water temperature T1 in the hot water storage device 20 and the real-time cold water temperature T2 in the cold water storage device 30 based on the user's target water temperature settings. It then calculates the flow rate S1 of the first flow control valve of the hot water storage device 20 as S*(Tm-T2) / (T1-T2), and further calculates the flow rate S2 of the second flow control valve of the cold water storage device 30 as S-S1. The user's target water temperature must be between T1 and T2, and if the water volume is within the safe level and there are no abnormalities, the panel prompts the user to press the start button. Upon receiving this information, the controller controls the first and second flow control valves to open simultaneously. Water begins to flow through the same outlet and reaches the user's water receiving device. After the water in the user's device mixes, the water temperature reaches the user's set water temperature.

[0077] Furthermore, the above method of taking water according to the target water temperature set by the user is a precise control mode. At the same time, a fuzzy control mode can be set on the display operation panel, and the user can take hot water or cold water separately without being subject to temperature limits.

[0078] Specifically, after adjusting the opening of the first flow regulating valve according to the first water output and adjusting the opening of the second flow regulating valve according to the second water output, the controller is also configured to: close the first flow regulating valve and the second flow regulating valve when receiving a stop water collection instruction.

[0079] For example, after the user receives water that meets the requirements, the user presses the stop button. Upon receiving this information, the controller controls the first flow regulating valve and the second flow regulating valve to close simultaneously. If the user does not press the button again to collect water within 10 seconds, the water collection is completed and the water temperature and flow settings are reset.

[0080] Specifically, the controller is also configured to: obtain the real-time hot water temperature detected by the first temperature sensor; when the real-time hot water temperature is less than a preset first high temperature threshold, start the heating device; when the real-time hot water temperature is greater than a preset second high temperature threshold, turn off the heating device; wherein the second high temperature threshold is greater than the first high temperature threshold.

[0081] For example, see Figure 9 , Figure 9It is the third working flowchart of the controller in the refrigerator provided by the embodiment of the present invention. The controller is configured to execute steps S21 to S26. The temperature of the water stored in the hot water storage device 20 is T1, and T1 needs to satisfy: Tmin1 ≤ T1 ≤ Tmax1; where Tmin1 is the first high temperature threshold and Tmax1 is the second high temperature threshold. For example, Tmin1 = 90 °C and Tmax1 = 99 °C. When T1 < Tmin1 (such as 80 °C), the heating device 21 is started for heating. When T1 > Tmax1 (such as 100 °C), the heating is stopped.

[0082] Specifically, the controller is further configured to: obtain the real-time cold water temperature detected by the second temperature sensor; when the real-time cold water temperature is greater than a preset first low temperature threshold, open the air door; when the real-time cold water temperature is less than a preset second low temperature threshold, close the air door; where the second low temperature threshold is less than the first low temperature threshold.

[0083] Exemplarily, refer to Figure 10 , Figure 10 It is the fourth working flowchart of the controller in the refrigerator provided by the embodiment of the present invention. The controller is configured to execute steps S31 to S36. The temperature of the water stored in the cold water storage device 30 is T2, and T2 needs to satisfy: Tmin2 ≤ T2 ≤ Tmax2; where Tmin2 is the second low temperature threshold and Tmax2 is the first low temperature threshold. For example, Tmin2 = 1 °C and Tmax2 = 5 °C. When T1 < Tmin2 (such as 80 °C), the electric air door 31 is closed. When T2 > Tmax2 (such as 100 °C), the electric air door 3 is opened.

[0084] Specifically, the controller is further configured to: obtain the first pressure value detected by the first pressure sensor; when the first pressure value is less than a preset minimum hot water storage capacity, open the first water inlet valve; when the first pressure value is greater than a preset maximum hot water storage capacity, close the first water inlet valve.

[0085] Exemplarily, the first pressure sensor 25 is used to monitor the weight of the water inside the hot water storage device 20, which is characterized by the first pressure value to judge the water volume. The maximum hot water storage capacity M1 and the minimum hot water storage capacity M2 can be set. When the first pressure value is less than M2, the user is notified through the display panel that water cannot be taken, and at the same time, the first water inlet valve is started. When the first pressure value is greater than M1, the first water inlet valve is closed, and then the heating device 21 is started for heating until the real-time hot water temperature is greater than or equal to the first high temperature threshold and the heating stops. During the time from when the first water inlet valve works to when the heating is completed, the user cannot take water.

[0086] Specifically, the controller is also configured to: obtain a second pressure value detected by the second pressure sensor; when the second pressure value is less than a preset minimum cold water storage capacity, open the second water inlet valve; when the second pressure value is greater than a preset maximum cold water storage capacity, close the second water inlet valve.

[0087] Exemplarily, the second pressure sensor 35 is used to monitor the weight of the water within the cold water storage device 30, represented by the second pressure value, to determine the water volume. A maximum cold water storage volume M3 and a minimum cold water storage volume M4 can be set. When the second pressure value is less than M4, the user is notified via the display panel that water cannot be drawn, and the second water inlet valve is activated. When the second pressure value is greater than M3, the second water inlet valve is closed, and the electric damper 31 is opened to cool the water. Cooling is terminated when the real-time cold water temperature is less than or equal to the first low-temperature threshold. During the time from the second water inlet valve operating until cooling is complete, the user cannot draw water.

[0088] Compared to existing technologies, the refrigerator disclosed in the present invention, by providing a hot water storage device and a cold water storage device within the drinking water system, can output water at different temperatures by mixing hot and cold water. Upon receiving a water delivery instruction from a user, the refrigerator obtains the target water temperature in the delivery instruction and adjusts the water output from the hot and cold water storage devices based on the target water temperature, outputting the mixed water through the water outlet. This embodiment of the present invention allows the water temperature of the water dispenser to be set according to the needs of different users, ensuring that the water temperature of the water dispenser meets the user's needs. Furthermore, since the hot water storage device is pre-stored with hot water and the cold water storage device is pre-stored with cold water, water can be delivered quickly when the user receives water, eliminating the need for long waits.

[0089] See also Figure 11 , Figure 11 This is a flow chart of a method for controlling a water dispenser in a refrigerator provided by an embodiment of the present invention. The method is executed by a controller in the refrigerator. The refrigerator includes a water dispenser, which includes a hot water storage device, a cold water storage device, and a water outlet. The hot water storage device is provided with a heating device for heating, and the cold water storage device is provided with an electric damper. When the electric damper is opened, cold air output by a refrigeration system is introduced into the cold water storage device through the electric damper. The method includes:

[0090] S101, upon receiving a water outlet instruction, obtaining a target water temperature in the water outlet instruction;

[0091] S102: Adjust the water output of the hot water storage device and the cold water storage device according to the target water temperature, so as to output mixed water through the water outlet.

[0092] Specifically, the regulating the water output of the hot water storage device and the cold water storage device according to the target water temperature includes: obtaining the real-time hot water temperature of the hot water storage device, and obtaining the real-time cold water temperature of the cold water storage device; calculating the first water output according to the target water temperature, the total water output of the water outlet, the real-time hot water temperature and the real-time cold water temperature; wherein the total water output of the water outlet is a preset constant value; calculating the difference between the total water output and the first water output to obtain the second water output; regulating the water output of the hot water storage device according to the first water output, and regulating the water output of the cold water storage device according to the second water output.

[0093] Specifically, the first water output is calculated according to the target water temperature, the total water output of the water outlet, the real-time hot water temperature, and the real-time cold water temperature, and satisfies the following formula:

[0094] S1 = S*(Tm-T2) / (T1-T2);

[0095] Among them, S1 is the first water output; S is the total water output; Tm is the target water temperature; T1 is the real-time hot water temperature; T2 is the real-time cold water temperature.

[0096] Specifically, the method also includes: obtaining the real-time hot water temperature of the hot water storage device; when the real-time hot water temperature is less than a preset first high temperature threshold, starting the heating device; when the real-time hot water temperature is greater than a preset second high temperature threshold, turning off the heating device; wherein the second high temperature threshold is greater than the first high temperature threshold.

[0097] Specifically, the method also includes: obtaining the real-time cold water temperature of the cold water storage device; when the real-time cold water temperature is greater than a preset first low temperature threshold, opening the damper; when the real-time cold water temperature is less than a preset second low temperature threshold, closing the damper; wherein the second low temperature threshold is less than the first low temperature threshold.

[0098] Specifically, the method also includes: obtaining a first pressure value of the hot water storage device, and when the first pressure value is less than a preset minimum hot water storage capacity, starting the water injection operation of the hot water storage device; when the first pressure value is greater than a preset maximum hot water storage capacity, stopping the water injection.

[0099] Specifically, the method also includes: obtaining a second pressure value of the cold water storage device, and when the second pressure value is less than a preset minimum cold water storage capacity, starting the water injection operation of the cold water storage device; when the second pressure value is greater than a preset maximum cold water storage capacity, stopping the water injection.

[0100] It is worth noting that the specific working process of the water dispenser control method of the refrigerator described in the embodiment of the present invention can refer to the working process of the controller in the refrigerator described in the above embodiment, which will not be repeated here.

[0101] Compared to existing technologies, the disclosed refrigerator water dispenser control method, by providing a hot water storage device and a cold water storage device within the drinking water system, can output water at different temperatures by mixing hot and cold water. Upon receiving a water delivery instruction from a user, the method obtains the target water temperature in the delivery instruction; the water output from the hot and cold water storage devices is adjusted based on the target water temperature, and the mixed water is delivered through the water outlet. This embodiment of the present invention allows the water temperature of the water dispenser to be set according to the needs of different users, ensuring that the water temperature of the delivered water meets the user's needs. Furthermore, because the hot water storage device is pre-stored with hot water and the cold water storage device is pre-stored with cold water, water delivery can be achieved quickly when the user receives water, eliminating the need for long waits.

[0102] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that: include: a box body, in which at least one freezing chamber and a refrigerating chamber are formed; a water dispenser, disposed within the housing, comprising a hot water storage device, a cold water storage device, and a water outlet; the hot water storage device being provided with a heating device for heating the water; and the cold water storage device being provided with an electric damper, such that when the electric damper is opened, cold air outputted by a refrigeration system flows through the electric damper into the cold water storage device; The controller is configured as: When receiving a water outlet instruction, obtaining the target water temperature in the water outlet instruction; The water output of the hot water storage device and the cold water storage device is adjusted according to the target water temperature, so as to output the mixed water through the water outlet.

2. The refrigerator according to claim 1, wherein The hot water storage device also includes a first flow regulating valve and a first temperature sensor, the first flow regulating valve is used to regulate the first water output of the hot water storage device, and the first temperature sensor is used to detect the hot water temperature of the hot water storage device; the cold water storage device also includes a second flow regulating valve and a second temperature sensor, the second flow regulating valve is used to regulate the second water output of the cold water storage device, and the second temperature sensor is used to detect the cold water temperature of the cold water storage device.

3. The refrigerator according to claim 2, wherein: The controller is further configured to: Acquire the real-time hot water temperature detected by the first temperature sensor, and acquire the real-time cold water temperature detected by the second temperature sensor; The first water output is calculated according to the target water temperature, the total water output of the water outlet, the real-time hot water temperature, and the real-time cold water temperature; wherein the total water output of the water outlet is a preset constant value; Calculating the difference between the total water output and the first water output to obtain the second water output; The opening of the first flow regulating valve is adjusted according to the first water output, and the opening of the second flow regulating valve is adjusted according to the second water output.

4. The refrigerator according to claim 3, wherein The first water output is calculated according to the target water temperature, the total water output of the water outlet, the real-time hot water temperature, and the real-time cold water temperature, satisfying the following formula: S1 = S*(Tm-T2) / (T1-T2); Among them, S1 is the first water output; S is the total water output; Tm is the target water temperature; T1 is the real-time hot water temperature; T2 is the real-time cold water temperature.

5. The refrigerator according to claim 2, wherein: The controller is further configured to: Obtaining the real-time hot water temperature detected by the first temperature sensor; When the real-time hot water temperature is lower than a preset first high temperature threshold, starting the heating device; When the real-time hot water temperature is greater than a preset second high temperature threshold, the heating device is turned off; wherein the second high temperature threshold is greater than the first high temperature threshold.

6. The refrigerator according to claim 2, wherein: The controller is further configured to: Obtaining the real-time cold water temperature detected by the second temperature sensor; When the real-time cold water temperature is greater than a preset first low temperature threshold, opening the damper; When the real-time cold water temperature is lower than a preset second low temperature threshold, the damper is closed; wherein the second low temperature threshold is lower than the first low temperature threshold.

7. The refrigerator according to claim 1, wherein The hot water storage device further includes a first water inlet valve and a first pressure sensor, wherein the first pressure sensor is provided at the bottom of the hot water storage device and is used to detect a first pressure value of the hot water storage device; The controller is further configured to: obtaining a first pressure value detected by the first pressure sensor; When the first pressure value is less than a preset minimum hot water storage amount, opening the first water inlet valve; When the first pressure value is greater than a preset maximum hot water storage capacity, the first water inlet valve is closed.

8. The refrigerator according to claim 1, wherein The cold water storage device further includes a second water inlet valve and a second pressure sensor, wherein the second pressure sensor is provided at the bottom of the cold water storage device and is used to detect a second pressure value of the cold water storage device; The controller is further configured to: obtaining a second pressure value detected by the second pressure sensor; When the second pressure value is less than a preset minimum cold water storage amount, opening the second water inlet valve; When the second pressure value is greater than a preset maximum cold water storage capacity, the second water inlet valve is closed.

9. A method for controlling a water dispenser of a refrigerator, characterized in that: The water dispenser includes a hot water storage device, a cold water storage device, and a water outlet. The hot water storage device is provided with a heating device for heating, and the cold water storage device is provided with an electric damper. When the electric damper is opened, cold air output by a refrigeration system flows into the cold water storage device through the electric damper. The method includes: When receiving a water outlet instruction, obtaining the target water temperature in the water outlet instruction; The water output of the hot water storage device and the cold water storage device is adjusted according to the target water temperature, so as to output the mixed water through the water outlet.

10. The method for controlling a water dispenser of a refrigerator according to claim 9, wherein: The step of adjusting the water output of the hot water storage device and the cold water storage device according to the target water temperature includes: Acquiring the real-time hot water temperature of the hot water storage device and the real-time cold water temperature of the cold water storage device; The first water output is calculated according to the target water temperature, the total water output of the water outlet, the real-time hot water temperature, and the real-time cold water temperature; wherein the total water output of the water outlet is a preset constant value; Calculating the difference between the total water output and the first water output to obtain the second water output; The water output of the hot water storage device is adjusted according to the first water output, and the water output of the cold water storage device is adjusted according to the second water output.

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