Refrigerator with quick-freezing function and control method

Abstract

The present application provides a refrigerator with a quick-freezing function and a control method, the refrigerator comprising a freezer compartment, a container, a controller, a first temperature sensor, a liquid storage tank, a power pump, a pipe, a valve, and a second temperature sensor. The container, the liquid storage tank, the power pump, and the pipe are arranged in the freezer compartment, and the controller is arranged on the refrigerator body. A cavity is arranged in the container, and the cavity and the liquid storage tank are connected by a pipe. The first temperature sensor detects the temperature of the food in the container, and the second temperature sensor detects the temperature of the frozen liquid in the liquid storage tank. The power pump and the valve are arranged on the pipe, and the controller receives the temperature data detected by the first temperature sensor and the second temperature sensor to determine when to open or close the power pump and the valve. When the valve is opened, the frozen liquid in the liquid storage tank automatically flows into the cavity. By using a low-freezing-point frozen liquid as a heat transfer medium and performing temperature control, the food can be cooled quickly, which can solve the problem of slow cooling of food in the freezer compartment.

Description

Technical Field

[0001] The present application relates to the field of refrigerator quick-freezing technology, and in particular to a refrigerator with a quick-freezing function and a control method thereof. Background Art

[0002] The freezer compartment in the refrigerator is mainly used to freeze food. In order to better freeze the food, the temperature of the freezer compartment is set below zero. At a freezing temperature of -18°C, bacterial activity can be reduced, which can prolong the storage time of food without spoiling. It is known that the shorter the time the water in the food passes through the maximum ice crystal zone, the more ice crystals are produced, and the rounder the shape, the more conducive to the nutritional preservation of the food. However, in some embodiments, the freezer compartment of the refrigerator uses air as a medium for heat transfer, which makes the freezing temperature of the refrigerator higher, resulting in a slow cooling rate of the food in the freezer compartment, causing extracellular ice to form first, and the intracellular water to continuously migrate to the outside of the cell. The ice crystals formed are large in size, which destroys the cell structure and leads to nutrient loss. Summary of the Invention

[0003] The present application provides a refrigerator with a quick-freezing function and a control method thereof, so as to solve the problem of slow cooling of food in the freezer compartment of the refrigerator.

[0004] A first aspect of the present application provides a refrigerator with a quick-freezing function, comprising: a freezing compartment, a container, a controller, a first temperature sensor, a liquid storage tank, a power pump, a pipeline, a valve, and a second temperature sensor;

[0005] The container, the liquid storage tank, the power pump, and the pipeline are arranged in the freezing compartment; the controller is arranged on the refrigerator body;

[0006] The liquid storage tank contains refrigerated liquid;

[0007] The container is provided with a liquid inlet, a cavity is provided in the container, and the liquid inlet is connected to the cavity;

[0008] One end of the pipeline is connected to the liquid inlet, and the other end of the pipeline is connected to the liquid storage tank; the power pump and the valve are both arranged on the pipeline;

[0009] The first temperature sensor is arranged on the outside of the container, and the second temperature sensor is arranged on the outside of the liquid storage tank;

[0010] The power pump, the valve, the first temperature sensor, and the second temperature sensor are electrically connected to the controller respectively;

[0011] The controller is configured to:

[0012] Acquire a first temperature detected by a second temperature sensor, where the first temperature is the temperature of the frozen liquid in the liquid storage tank;

[0013] If the first temperature is higher than a first temperature threshold, sending a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment to a set temperature;

[0014] When the first temperature drops to the same temperature as the first temperature threshold, sending a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment to the same temperature as the first temperature threshold;

[0015] Acquire a second temperature detected by the first temperature sensor, where the second temperature is the temperature of food in the container;

[0016] If the second temperature is higher than the second temperature threshold, sending an opening instruction to the valve to control the valve to open;

[0017] When the second temperature drops to the same temperature as the second temperature threshold, an opening instruction is sent to the power pump to control the power pump to start.

[0018] Optionally, a flow-disturbing device is further included, wherein the flow-disturbing device is arranged in the cavity and is electrically connected to the controller.

[0019] Optionally, the flow-disturbing device is an ultrasonic device and / or a stirring device.

[0020] Optionally, the controller is further configured to:

[0021] When the valve is opened, an opening instruction is sent to the flow-disturbing device to control the flow-disturbing device to open;

[0022] When the power pump is turned on, a closing instruction is sent to the spoiler to control the spoiler to be closed.

[0023] Optionally, the controller is further configured to:

[0024] If the second temperature is higher than the second temperature threshold, and the first temperature is between the first temperature threshold and the second temperature threshold, sending a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment to a set temperature;

[0025] Sending an opening instruction to the valve to control the valve to open;

[0026] When the second temperature drops to the same temperature as the second temperature threshold, sending a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment to the same temperature as the first temperature threshold;

[0027] Sending an opening instruction to the power pump to control the power pump to open.

[0028] Optionally, the controller is further configured to:

[0029] If both the first temperature and the second temperature are higher than the second temperature threshold, sending a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment to a set temperature;

[0030] comparing the first temperature to the second temperature;

[0031] If the first temperature is lower than the second temperature, wait until the first temperature drops to the same temperature as the second temperature threshold, and send an opening instruction to the valve to control the valve to open;

[0032] When the second temperature drops to the same temperature as the second temperature threshold, sending a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment to the same temperature as the first temperature threshold;

[0033] Sending an opening instruction to the power pump to control the power pump to open.

[0034] Optionally, the controller is further configured to:

[0035] If the second temperature is lower than the second temperature threshold, a closing instruction is sent to the valve to control the valve to close.

[0036] Optionally, the freezing liquid includes at least one of a sodium chloride solution, a glycerol solution, and an ethylene glycol solution.

[0037] Optionally, a control panel is provided on the controller, and the control panel is electrically connected to the controller.

[0038] A second aspect of the present application provides a method for controlling a quick-freezing function, which is applied to the refrigerator with a quick-freezing function described in the first aspect. The control method includes:

[0039] Acquire a first temperature detected by a second temperature sensor, where the first temperature is the temperature of the frozen liquid in the liquid storage tank;

[0040] If the first temperature is higher than a first temperature threshold, sending a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment to a set temperature;

[0041] When the first temperature drops to the same temperature as the first temperature threshold, sending a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment to the same temperature as the first temperature threshold;

[0042] Acquire a second temperature detected by the first temperature sensor, where the second temperature is the temperature of food in the container;

[0043] If the second temperature is higher than the second temperature threshold, sending an opening instruction to the valve to control the valve to open;

[0044] When the second temperature drops to the same temperature as the second temperature threshold, an opening instruction is sent to the power pump to control the power pump to start.

[0045] As can be seen from the above technical solution, the present application provides a refrigerator with a quick-freezing function and a control method, the refrigerator comprising a freezer compartment, a container, a controller, a first temperature sensor, a liquid storage tank, a power pump, a pipe, a valve, and a second temperature sensor. The container, the liquid storage tank, the power pump, and the pipe are arranged in the freezer compartment, and the controller is arranged on the refrigerator body. A cavity is arranged in the container, and the cavity and the liquid storage tank are connected by a pipe. The first temperature sensor is used to detect the temperature of the food in the container, and the second temperature sensor is used to detect the temperature of the frozen liquid in the liquid storage tank. The power pump and the valve are arranged on the pipe, and the controller can receive the temperature data detected by the first temperature sensor and the second temperature sensor to determine when to open or close the power pump and the valve. When the valve is opened, the frozen liquid in the liquid storage tank automatically flows into the cavity. By using a low-freezing-point frozen liquid as a heat transfer medium and performing temperature control, the food can be cooled quickly, which can solve the problem of slow cooling of the food in the freezer compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0047] Figure 1 A schematic diagram of the structure of a refrigerator with a quick-freezing function provided in this application;

[0048] Figure 2 A schematic side view of the refrigerator with quick-freezing function provided in this application;

[0049] Figure 3 This is a flow chart of the control method for the quick freezing function provided in this application.

[0050] Illustration:

[0051] Among them, 1-freezing chamber; 2-container; 3-frozen liquid; 4-cavity; 5-controller; 6-first temperature sensor; 7-liquid storage tank; 8-power pump; 9-pipeline; 10-valve; 11-turbulence device; 12-liquid inlet; 13-third temperature sensor; 14-second temperature sensor. DETAILED DESCRIPTION

[0052] The following embodiments are described in detail, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following embodiments are not intended to represent all embodiments consistent with the present application. They are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the claims.

[0053] The shorter the time it takes for water in food to pass through the maximum ice crystal zone, the more numerous and rounder ice crystals are produced, which is more conducive to preserving the food's nutrients. However, in some embodiments, the freezer compartment of a refrigerator uses air as a medium for heat transfer, resulting in a higher freezing temperature. This slows the cooling of food in the freezer compartment, causing extracellular ice to form first, leading to the continuous migration of intracellular water to the outside of the cells. This results in larger ice crystals, which damage the cell structure and lead to nutrient loss.

[0054] In order to solve the problem of slow cooling of food in the freezer compartment of a refrigerator, some embodiments of the present application provide a refrigerator with a quick freezing function, see Figure 1-2 , Figure 1 This is a schematic diagram of the structure of a refrigerator with a quick-freezing function provided in this application. Figure 2 This is a side view of a quick-freezing refrigerator provided by the present application. The quick-freezing refrigerator provided by the present application includes: a freezing compartment 1, a container 2, a controller 5, a first temperature sensor 6, a liquid storage tank 7, a power pump 8, a pipe 9, a valve 10, and a second temperature sensor 14. The container 2, liquid storage tank 7, power pump 8, and pipe 9 are disposed within the freezing compartment 1, and the controller 5 is disposed on the refrigerator body.

[0055] The liquid storage tank 7 is disposed above the freezing chamber 1. In some embodiments, the liquid storage tank 7 can be disposed on the top surface of the freezing chamber 1 or on the side wall of the freezing chamber 1. The liquid storage tank 7 is made of a material with good thermal conductivity, such as aluminum, copper, or iron. Since the liquid storage tank 7 contains the freezing liquid 3, the temperature of the freezing liquid 3 can be directly transferred to the liquid storage tank 7.

[0056] The freezing liquid 3 comprises at least one of sodium chloride solution, glycerol solution, and ethylene glycol solution. These solutions have relatively low freezing points and are often used as quick-freezing solutions. Using a liquid with a relatively low freezing point as a heat transfer medium can increase the cooling rate of food, achieving rapid cooling. This also significantly supercools the food, facilitating the release of latent heat from the water in the food and forming more and smaller ice crystals, which in turn helps preserve the food's nutrients.

[0057] A liquid inlet 12 is provided on the side wall of the container 2. A cavity 4 is provided within the container 2. The cavity 4 is an independent chamber that divides the interior of the container into two parts. The bottom cavity 4 can hold the frozen liquid 3, while the top space of the cavity 4 can be used to hold food. The liquid inlet 12 communicates with the cavity 4 so that liquid entering through the liquid inlet 12 can enter the cavity 4.

[0058] One end of pipe 9 is connected to liquid inlet 12, and the other end of pipe 9 is connected to liquid storage tank 7. It should be noted that the lowest point of liquid storage tank 7 should be higher than the liquid inlet of container 2 so that the frozen liquid 3 in liquid storage tank 7 can automatically flow into the container 2's cavity 4. A power pump 8 is provided on pipe 9. When powered, power pump 8 can withdraw the frozen liquid 3 in the cavity 4 into the liquid storage tank 7.

[0059] Valve 10 is disposed on pipe 9. In some embodiments, valve 10 is disposed between power pump 8 and liquid inlet 12. When valve 10 is opened, pipe 9 is opened, and refrigerant liquid 3 automatically flows into cavity 4. When valve 10 is closed, refrigerant liquid 3 stops flowing into cavity 4. In some embodiments, valve 10 can be an electric valve. Power pump 8 and valve 10 are both electrically connected to controller 5, and controller 5 can automatically control the opening and closing of power pump 8 and valve 10.

[0060] A first temperature sensor 6 is disposed on the outside of the container 2. In some embodiments, the first temperature sensor 6 may be a far-infrared sensor and is used to detect the temperature of the food in the container 2. A second temperature sensor 14 is disposed on the outside of the liquid storage tank 7 and is used to detect the temperature of the frozen liquid 3 in the liquid storage tank 7. The first temperature sensor 6 and the second temperature sensor 14 are each electrically connected to the controller 5. Through the electrical connection with the controller 5, the detected food temperature and the temperature of the frozen liquid 3 are fed back to the controller 5, so that the controller 5 can control the power pump 8 and the valve 10 based on the obtained food temperature and the temperature of the frozen liquid 3.

[0061] See again Figure 1-2 The quick-freezing refrigerator provided herein also includes a flow-disrupting device 11 disposed within the container 4 and electrically connected to the controller 5 so that the controller 5 can automatically control the opening and closing of the flow-disrupting device 11. In some embodiments, the flow-disrupting device 11 is an ultrasonic device and / or a stirring device. When activated, the flow-disrupting device 11 accelerates the flow of the frozen liquid 3 within the container 4, thereby accelerating the cooling rate of the frozen liquid 3.

[0062] The controller 5 is provided with a control panel, which is electrically connected to the controller 5. The control panel is provided with buttons, and the quick-freezing function of the refrigerator can be turned on or off by pressing the buttons.

[0063] The controller 5 is configured to: obtain a first temperature detected by the second temperature sensor 14, where the first temperature is the temperature of the frozen liquid 3 in the liquid storage tank 7; if the first temperature is higher than a first temperature threshold, send a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment 1 to a set temperature; wait until the first temperature drops to the same temperature as the first temperature threshold, send a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment 1 to the same temperature as the first temperature threshold; obtain a second temperature detected by the first temperature sensor 6, where the second temperature is the temperature of the food in the container 2; if the second temperature is higher than the second temperature threshold, send an opening instruction to the valve 10 to control the valve 10 to open; wait until the second temperature drops to the same temperature as the second temperature threshold, send an opening instruction to the power pump 8 to control the power pump 8 to open.

[0064] In some embodiments, the controller 5 is further configured to: when the valve 10 is opened, send an opening instruction to the spoiler 11 to control the spoiler 11 to open; when the power pump 8 is turned on, send a closing instruction to the spoiler 11 to control the spoiler 11 to close.

[0065] For example, second temperature sensor 14 automatically detects the temperature of the frozen liquid 3 in liquid storage tank 7, i.e., a first temperature, and feeds the first temperature back to controller 5. Controller 5 determines whether the first temperature is above a first temperature threshold of -16°C to -24°C. If so, controller 5 sends a temperature adjustment command to the refrigerator's temperature control system to adjust the temperature in freezer compartment 1 to a set temperature, causing freezer compartment 1 to operate at a set temperature of -24°C to -40°C to refrigerate the frozen liquid 3. Once the first temperature drops to -16°C to -24°C, freezer compartment 1 returns to operating at a set temperature of -16°C to -24°C. When food is placed in container 2 and the quick-freeze function is activated, first temperature sensor 6 automatically detects the food temperature, i.e., a second temperature. If the second temperature is above a second temperature threshold of 0°C to -5°C, valve 10 is opened, allowing the frozen liquid 3 in liquid storage tank 7 to flow into chamber 4. Simultaneously, flow disturbance device 11 is activated to rapidly cool the food in container 2. When the second temperature drops to 0-5° C., the flow disturbance device 11 is closed, and the power pump 8 is turned on to recover the frozen liquid 3 in the cavity 4 into the liquid storage tank 7 .

[0066] In some embodiments, the controller 5 is further configured to: if the second temperature is higher than the second temperature threshold and the first temperature is between the first temperature threshold and the second temperature threshold, send a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment 1 to the set temperature; send an opening instruction to the valve 10 to control the valve 10 to open; wait until the second temperature drops to the same temperature as the second temperature threshold, send a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment 1 to the same temperature as the first temperature threshold; send an opening instruction to the power pump 8 to control the power pump 8 to open.

[0067] Exemplarily, second temperature sensor 14 automatically detects the temperature of frozen liquid 3 in liquid storage tank 7, i.e., the first temperature, and feeds the first temperature back to controller 5. When food is placed in container 2 and the quick-freeze function is activated, first temperature sensor 6 automatically detects the food temperature, i.e., the second temperature. If the second temperature is above 0-5°C, and the first temperature is above -16°C to -24°C, but below 0-5°C, a temperature adjustment command is sent to the refrigerator's temperature control system to adjust the temperature in freezer compartment 1 to the set temperature, causing freezer compartment 1 to operate at the set temperature of -24°C to -40°C to refrigerate frozen liquid 3. Valve 10 is then opened, allowing frozen liquid 3 to flow into chamber 4. Simultaneously, flow disturbance device 11 is activated, rapidly cooling the food in container 2. Once the second temperature drops to 0-5°C, freezer compartment 1 is adjusted back to -16°C to -18°C. At this point, flow disturbance device 11 is closed, and power pump 8 is activated to recycle frozen liquid 3 back into liquid storage tank 7.

[0068] In some embodiments, the controller 5 is further configured to: if the first temperature and the second temperature are both higher than the second temperature threshold, send a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment 1 to the set temperature; compare the first temperature and the second temperature; if the first temperature is lower than the second temperature, wait until the first temperature drops to the same temperature as the second temperature threshold, send an opening instruction to the valve 10 to control the valve 10 to open; wait until the second temperature drops to the same temperature as the second temperature threshold, send a temperature adjustment instruction to the refrigerator temperature control system to adjust the temperature in the freezer compartment 1 to the same temperature as the first temperature threshold; send an opening instruction to the power pump 8 to control the power pump 8 to open.

[0069] For example, second temperature sensor 14 automatically detects the temperature of frozen liquid 3 in liquid storage tank 7, i.e., the first temperature, and feeds the first temperature back to controller 5. When food is placed in container 2 and the quick-freeze function is activated, first temperature sensor 6 automatically detects the food temperature, i.e., the second temperature. If both the first and second temperatures are above the second temperature threshold of 0 to -5°C, a temperature adjustment command is sent to the refrigerator's temperature control system to adjust the temperature in freezer compartment 1 to the set temperature, causing freezer compartment 1 to operate at a set temperature of -24°C to -40°C to refrigerate frozen liquid 3. The first and second temperatures are compared. If the first temperature is lower than the second temperature, valve 10 is opened after the first temperature drops to 0 to -5°C, allowing frozen liquid 3 in liquid storage tank 7 to flow into chamber 4. Simultaneously, flow disturbance device 11 is activated to rapidly cool the food in container 2. Once the second temperature drops to 0 to -5°C, a temperature adjustment command is sent to the refrigerator's temperature control system to adjust the temperature in freezer compartment 1 to -16°C to -24°C. The flow disturbance device 11 is closed, and the power pump 8 is turned on to recover the refrigerated liquid 3 in the cavity 4 into the liquid storage tank 7 .

[0070] In some embodiments, the controller 5 is further configured to send a closing instruction to the valve 10 to control the valve 10 to close if the second temperature is lower than the second temperature threshold.

[0071] For example, food is placed in the container 2 and the quick freezing function is turned on. If the temperature of the food detected by the first temperature sensor 6 is lower than 0 to -5°C, the valve 10 is closed to maintain the original state.

[0072] In some embodiments, a third temperature sensor 13 is further included. The third temperature sensor 13 is arranged on the side wall of the freezer compartment 1. The third temperature sensor 13 is used to detect the temperature in the freezer compartment 1 and feed back the detection result to the refrigerator temperature control system so that the refrigerator temperature control system can better adjust the temperature in the freezer compartment 1.

[0073] Some embodiments of the present application also provide a method for controlling the quick freezing function, which is applied to the refrigerator with the quick freezing function described in the above embodiments. Figure 3 , the control method includes:

[0074] S100: Acquire a first temperature detected by the second temperature sensor 14, where the first temperature is the temperature of the frozen liquid in the liquid storage tank 7;

[0075] S200: If the first temperature is higher than the first temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment 1 to the set temperature;

[0076] S300: After the first temperature drops to the same temperature as the first temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment 1 to the same temperature as the first temperature threshold;

[0077] S400: Acquire a second temperature detected by the first temperature sensor 6, where the second temperature is the temperature of the food in the container 2;

[0078] S500: If the second temperature is higher than the second temperature threshold, an opening instruction is sent to the valve 10 to control the valve 10 to open;

[0079] S600: After the second temperature drops to the same temperature as the second temperature threshold, an opening instruction is sent to the power pump 8 to control the power pump 8 to start.

[0080] As can be seen from the above embodiments, the embodiments of the present application provide a refrigerator with a quick-freezing function and a control method, wherein the refrigerator includes: a freezing compartment 1, a container 2, a controller 5, a first temperature sensor 6, a liquid storage tank 7, a power pump 8, a pipe 9, a valve 10, and a second temperature sensor 14. The container 2, the liquid storage tank 7, the power pump 8, and the pipe 9 are arranged in the freezing compartment 1, and the controller 5 is arranged on the refrigerator body. A cavity 4 is provided in the container 2, and the cavity 4 and the liquid storage tank 7 are connected by a pipe 9. The first temperature sensor 6 is used to detect the temperature of the food in the container 2, and the second temperature sensor 14 is used to detect the temperature of the frozen liquid 3 in the liquid storage tank 7. The power pump 8 and the valve 10 are arranged on the pipe 9. The controller 5 can receive the temperature data detected by the first temperature sensor 6 and the second temperature sensor 14 to determine when to open or close the power pump 8 and the valve 10. When the valve 10 is opened, the frozen liquid 3 in the liquid storage tank 7 automatically flows into the storage chamber 4. The refrigerator with quick freezing function provided by the present application can quickly cool down the food by using the low freezing point frozen liquid 3 as the heat transfer medium and performing temperature control, thereby solving the problem of slow cooling of the food in the freezing compartment 1.

[0081] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the overall concept of this application and do not constitute a limitation on the scope of protection of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without expending creative work shall fall within the scope of protection of this application.

Claims

1. A refrigerator with a quick freezing function, characterized in that: include: A freezing compartment (1), a container (2), a controller (5), a first temperature sensor (6), a liquid storage tank (7), a power pump (8), a pipeline (9), a valve (10) and a second temperature sensor (14); The container (2), the liquid storage tank (7), the power pump (8), and the pipeline (9) are arranged in the freezing compartment (1); the controller (5) is arranged on the refrigerator body; The liquid storage tank (7) contains a refrigerated liquid (3); The container (2) is provided with a liquid inlet (12), a cavity (4) is provided in the container (2), and the liquid inlet (12) is connected to the cavity (4); One end of the pipeline (9) is connected to the liquid inlet (12), and the other end of the pipeline (9) is connected to the liquid storage tank (7); the power pump (8) and the valve (10) are both arranged on the pipeline (9); The first temperature sensor (6) is arranged outside the container (2), and the second temperature sensor (14) is arranged outside the liquid storage tank (7); The power pump (8), the valve (10), the first temperature sensor (6), and the second temperature sensor (14) are electrically connected to the controller (5) respectively; The controller (5) is configured to: Acquiring a first temperature detected by a second temperature sensor (14), wherein the first temperature is the temperature of the frozen liquid (3) in the liquid storage tank (7); If the first temperature is higher than a first temperature threshold, a temperature adjustment instruction is sent to a refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to a set temperature; When the first temperature drops to the same temperature as the first temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to the same temperature as the first temperature threshold; Acquiring a second temperature detected by the first temperature sensor (6), the second temperature being the temperature of food in the container (2); If the second temperature is higher than a second temperature threshold, an opening instruction is sent to the valve (10) to control the valve (10) to open; When the second temperature drops to the same temperature as the second temperature threshold, an opening instruction is sent to the power pump (8) to control the power pump (8) to open; The controller (5) is further configured to: If the second temperature is higher than the second temperature threshold, and the first temperature is between the first temperature threshold and the second temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to a set temperature; sending an opening instruction to the valve (10) to control the valve (10) to open; When the second temperature drops to the same temperature as the second temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to the same temperature as the first temperature threshold; Sending an opening instruction to the power pump (8) to control the power pump (8) to open; The controller (5) is further configured to: If both the first temperature and the second temperature are higher than the second temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to a set temperature; comparing the first temperature to the second temperature; If the first temperature is lower than the second temperature, when the first temperature drops to the same temperature as the second temperature threshold, an opening instruction is sent to the valve (10) to control the valve (10) to open; When the second temperature drops to the same temperature as the second temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to the same temperature as the first temperature threshold; An opening instruction is sent to the power pump (8) to control the power pump (8) to open.

2. The refrigerator with quick freezing function according to claim 1, characterized in that: It also includes a flow-disturbing device (11), which is arranged in the cavity (4) and electrically connected to the controller (5).

3. The refrigerator with quick freezing function according to claim 2, characterized in that: The flow-turbulating device (11) is an ultrasonic device and / or a stirring device.

4. The refrigerator with quick freezing function according to claim 2, characterized in that: The controller (5) is further configured to: When the valve (10) is opened, an opening instruction is sent to the flow-disturbing device (11) to control the flow-disturbing device (11) to open; When the power pump (8) is turned on, a closing instruction is sent to the flow-disturbing device (11) to control the flow-disturbing device (11) to be closed.

5. The refrigerator with quick freezing function according to claim 1, characterized in that: The controller (5) is further configured to: If the second temperature is lower than the second temperature threshold, a closing instruction is sent to the valve (10) to control the valve (10) to close.

6. The refrigerator with quick freezing function according to claim 1, characterized in that: The freezing liquid (3) comprises at least one of a sodium chloride solution, a glycerol solution, and an ethylene glycol solution.

7. The refrigerator with quick freezing function according to claim 1, characterized in that: The controller (5) is provided with a control panel, and the control panel is electrically connected to the controller (5).

8. A method for controlling a quick-freezing function, characterized in that: Applied to the refrigerator with quick-freezing function according to any one of claims 1 to 7, the control method comprises: Acquiring a first temperature detected by a second temperature sensor (14), wherein the first temperature is the temperature of the frozen liquid (3) in the liquid storage tank (7); If the first temperature is higher than a first temperature threshold, a temperature adjustment instruction is sent to a refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to a set temperature; When the first temperature drops to the same temperature as the first temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to the same temperature as the first temperature threshold; Acquiring a second temperature detected by the first temperature sensor (6), the second temperature being the temperature of food in the container (2); If the second temperature is higher than a second temperature threshold, an opening instruction is sent to the valve (10) to control the valve (10) to open; When the second temperature drops to the same temperature as the second temperature threshold, an opening instruction is sent to the power pump (8) to control the power pump (8) to open; If the second temperature is higher than the second temperature threshold, and the first temperature is between the first temperature threshold and the second temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to a set temperature; sending an opening instruction to the valve (10) to control the valve (10) to open; When the second temperature drops to the same temperature as the second temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to the same temperature as the first temperature threshold; Sending an opening instruction to the power pump (8) to control the power pump (8) to open; If both the first temperature and the second temperature are higher than the second temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to a set temperature; comparing the first temperature to the second temperature; If the first temperature is lower than the second temperature, when the first temperature drops to the same temperature as the second temperature threshold, an opening instruction is sent to the valve (10) to control the valve (10) to open; When the second temperature drops to the same temperature as the second temperature threshold, a temperature adjustment instruction is sent to the refrigerator temperature control system to adjust the temperature in the freezing compartment (1) to the same temperature as the first temperature threshold; An opening instruction is sent to the power pump (8) to control the power pump (8) to open.

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