Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator and a quick-freezing control method thereof, wherein a weight induction sensor and a temperature sensor are added in a quick-freezing chamber of the refrigerator, so that the quick-freezing mode duration and other load control can be automatically calculated according to the type, weight and temperature of food, and the purpose of saving energy is achieved while the quick-freezing of the food is realized.
To achieve the above object, an embodiment of the present invention provides a refrigerator including:
A case in which a storage chamber is formed, the storage chamber including at least a refrigerating chamber, a freezing chamber, and a quick-freezing chamber;
A door for opening and closing the storage chamber;
the weight sensor is arranged at the bottom of the quick freezing chamber and is used for detecting the weight of the food material when the food material is put into the quick freezing chamber;
the food material temperature detection device is arranged in the quick-freezing chamber and is used for detecting the real-time temperature of the food material in the quick-freezing chamber;
the controller is configured to:
when a quick-freezing mode entering instruction is detected, acquiring the type of at least one food material placed in the quick-freezing chamber, the weight of the corresponding food material and the real-time temperature, and acquiring the environment temperature;
acquiring corresponding specific heat capacity of the food materials in a database according to the types of the food materials;
Calculating the total refrigerating capacity required by the quick freezing chamber when the quick freezing chamber reaches a preset quick freezing target temperature according to the specific heat capacity of all food materials in the quick freezing chamber, the weight of the food materials and the real-time temperature;
And determining a quick-freezing mode of the quick-freezing chamber according to the total refrigerating capacity and the environmental temperature, and controlling the refrigerator to operate according to the operation parameters of the quick-freezing mode.
As an improvement of the above-described scheme, the quick-freezing mode includes a normal quick-freezing mode and a quick-freezing mode, and the refrigerating capacity of the normal quick-freezing mode in unit time is smaller than that of the quick-freezing mode in unit time.
As an improvement of the above-mentioned scheme, the determining the quick-freezing mode of the quick-freezing chamber according to the total refrigerating capacity and the ambient temperature includes:
Acquiring preset standard refrigerating capacity, and calculating a refrigerating capacity threshold according to the standard refrigerating capacity;
When the total refrigerating capacity is smaller than or equal to the refrigerating capacity threshold value, the quick-freezing mode is a common quick-freezing mode;
When the total refrigerating capacity is larger than the refrigerating capacity threshold and the environment temperature is smaller than a preset ring temperature threshold, the quick-freezing mode is a common quick-freezing mode;
And when the total refrigerating capacity is larger than the refrigerating capacity threshold and the environment temperature is larger than or equal to the ring temperature threshold, the quick freezing mode is a quick freezing mode.
As an improvement of the above, the controller is further configured to:
after the quick-freezing mode of the quick-freezing chamber is determined, calculating the multiple of the total refrigerating capacity and the preset standard refrigerating capacity;
calculating the product of the multiple and the reference operation time length corresponding to the quick-freezing mode, wherein the product is used as a quick-freezing operation time length threshold corresponding to the quick-freezing mode, and the reference operation time length is the preset operation time length corresponding to the same weight, temperature and food materials when reaching the target quick-freezing temperature in different quick-freezing modes;
And when the operation time of the refrigerator in the quick-freezing mode reaches the quick-freezing operation time threshold, controlling the refrigerator to exit the quick-freezing mode.
As an improvement of the above scheme, the standard refrigerating capacity is the refrigerating capacity required by measuring purified water with preset weight and preset temperature in a common quick-freezing mode when reaching the target speed temperature.
As an improvement of the above, the controller is further configured to:
When the refrigerator is in a common quick-freezing mode, controlling the rotating speed of a compressor in the refrigerator to be the rotating speed of a first press and the rotating speed of a fan to be the rotating speed of a first fan;
When the refrigerator is in the rapid freezing mode, controlling the rotation speed of a compressor in the refrigerator to be the rotation speed of a second press and the rotation speed of a fan to be the rotation speed of a second fan, and adjusting the refrigerating on-off point to be higher until the refrigerator exits from the rapid freezing mode, and recovering the refrigerating on-off point, wherein the rotation speed of the second press is larger than the rotation speed of the first press, and the rotation speed of the second fan is larger than the rotation speed of the first fan.
As an improvement of the above, the refrigerator further includes:
the display screen is arranged on the box door and used for displaying prompt information and receiving touch operation of a user;
Then, upon detecting a quick-freeze mode entry instruction, the controller is further configured to:
And popping up prompt information for prompting a user to input the type of food materials which are required to be stored in the rapid freezing chamber currently on the display screen.
As an improvement of the above, when detecting the quick-freeze mode entry instruction, the controller is further configured to:
After the food material type of the current food material is obtained, obtaining a weight change value detected by the weight sensor, and taking the weight change value as the food material weight of the current food material;
And acquiring the real-time temperature of the current food material measured by the food material temperature detection device.
In order to achieve the above object, the embodiment of the present invention further provides a quick-freezing control method for a refrigerator, wherein a quick-freezing chamber is provided in the refrigerator, a weight sensor and a food temperature detection device are provided in the quick-freezing chamber, the weight sensor is used for detecting the weight of food when the food is placed in the quick-freezing chamber, and the food temperature detection device is used for detecting the real-time temperature of the food in the quick-freezing chamber, and the quick-freezing control method for the refrigerator comprises:
when a quick-freezing mode entering instruction is detected, acquiring the type of at least one food material placed in the quick-freezing chamber, the weight of the corresponding food material and the real-time temperature, and acquiring the environment temperature;
acquiring corresponding specific heat capacity of the food materials in a database according to the types of the food materials;
Calculating the total refrigerating capacity required by the quick freezing chamber when the quick freezing chamber reaches a preset quick freezing target temperature according to the specific heat capacity of all food materials in the quick freezing chamber, the weight of the food materials and the real-time temperature;
And determining a quick-freezing mode of the quick-freezing chamber according to the total refrigerating capacity and the environmental temperature, and controlling the refrigerator to operate according to the operation parameters of the quick-freezing mode.
As an improvement of the above-described scheme, the quick-freezing mode includes a normal quick-freezing mode and a quick-freezing mode, and the refrigerating capacity of the normal quick-freezing mode in unit time is smaller than that of the quick-freezing mode in unit time.
Compared with the prior art, the refrigerator and the quick-freezing control method thereof disclosed by the invention have the advantages that the weight induction sensor and the temperature sensor are added in the quick-freezing chamber of the refrigerator, so that when a user needs to quick-freeze food materials in the quick-freezing chamber, a proper quick-freezing mode can be automatically determined according to the types, the weights and the temperatures of the food, the quick-freezing operation time length and other load control can be determined according to the quick-freezing mode, the purpose of quickly freezing the food is realized, and meanwhile, the purpose of saving energy is achieved.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present application.
The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, "a plurality of" means two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication with each other between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, fig. 1 is a schematic view of an external structure of a refrigerator 100 according to an embodiment of the present invention, where the refrigerator 100 has an approximately rectangular parallelepiped shape, and includes a case defining a storage space and a plurality of door bodies disposed at an opening of the case, and the door bodies include a door body housing located outside the case, a door body liner located inside the case, an upper end cap, a lower end cap, and a heat insulating layer located between the door body housing, the door body liner, the upper end cap, and the lower end cap, and typically, the heat insulating layer is filled with a foaming material. The case is provided with a chamber including a component storage chamber for storing components in the refrigerator, such as a press cabin, and a storage space for storing food and the like. The storage space may be partitioned into a plurality of storage compartments, which may be configured as a refrigerating compartment, a quick freezing compartment, and a freezing compartment according to use, and may further include a temperature changing compartment, a vacuum drawer, a moisturizing drawer, and the like. Each storage compartment corresponds to one or more doors, for example, in fig. 1, the upper storage compartment is provided with a double door. The door body can be pivoted at the opening of the box body and can also be opened in a drawer mode, so that drawer type storage is realized. The refrigerator comprises a refrigerator door, wherein a display screen is arranged at the refrigerator door and used for displaying prompt information and receiving touch operation of a user.
Referring to fig. 2, fig. 2 is a schematic diagram of an internal structure of a refrigerator according to an embodiment of the present invention, a foaming layer 11 is disposed between the refrigerating chamber 10 and the quick-freezing chamber 20, and because the temperature of the quick-freezing chamber 20 is very low, usually-25 ℃, in order to avoid the influence of the excessively low temperature of the quick-freezing chamber 20 on the refrigerating chamber 10, so that the temperature of the refrigerating chamber 10 is excessively low, the foaming layer 11 is disposed between the refrigerating chamber 10 and the quick-freezing chamber 20, and the foaming layer 11 plays a role of heat insulation, so that the heat transfer between the quick-freezing chamber 20 and the refrigerating chamber 10 is reduced, and the cold of the quick-freezing chamber 20 is not easily transferred to the refrigerating chamber 10. The quick-freezing chamber 20 is internally provided with a weight sensor 21 and a food material temperature detection device 22, the weight sensor 21 is arranged at the bottom of the quick-freezing chamber 20 and is used for detecting the weight of the food material stored in the quick-freezing chamber 20, and the food material temperature detection device 22 is arranged at the side edge of the quick-freezing chamber 20 and is used for detecting the real-time temperature of the food material in the quick-freezing chamber 20. The quick-freezing chamber 20 is also provided with a quick-freezing air supply opening 23 and a quick-freezing air door 24, the quick-freezing air supply opening 23 is used for outputting cold air to the quick-freezing chamber 20, the quick-freezing air door 24 is used for adjusting the cold air quantity delivered to the quick-freezing chamber 20, and the cold air passes through the quick-freezing air door 24 and then is gathered into the quick-freezing chamber through the quick-freezing air supply opening 23. The freezing chamber 30 is also provided with a freezing air supply opening 31 and a freezing air door 32, the freezing air supply opening 31 is used for outputting cold air to the freezing chamber 30, the freezing air door 32 is used for adjusting the cold air quantity delivered to the freezing chamber 30, and the cold air passes through the freezing air door 32 and then is converged into the freezing chamber 30 through the freezing air supply opening 31. It will be appreciated that, since the temperature of the quick-freezing chamber 20 is lower than that of the freezing chamber 30, when the quick-freezing chamber 20 and the freezing chamber 30 deliver heat-exchanged cold air via the same evaporator, the opening degree of the quick-freezing damper 24 is greater than that of the freezing damper 32, so that more cold air is introduced into the quick-freezing chamber.
Referring to fig. 3, fig. 3 is a schematic view of an internal structure of a quick freezing chamber 20 in a refrigerator according to an embodiment of the present invention, a superconducting tray 25 in the quick freezing chamber 20 covers almost the entire bottom of the quick freezing chamber 20, and a weight sensor 21 is disposed at the bottom of the superconducting tray 25, and the weight sensor 21 can detect the weight of food in real time when a user places the food on the superconducting tray 25.
Referring to fig. 4, fig. 4 is a schematic view showing a structure of a refrigeration system in a refrigerator according to an embodiment of the present invention, the refrigeration system including a compressor 1, an evaporator 2, a dry filter (not shown), a capillary tube 3, a condenser 4, and a gas-liquid separator (not shown). The working processes of the refrigeration system comprise a compression process, a condensation process, a throttling process and an evaporation process. The method comprises the steps of inserting a refrigerator power line, starting a compressor 1 to work under the condition that a contact of a temperature controller is connected, enabling low-temperature and low-pressure refrigerant to be sucked by the compressor 1, compressing the refrigerant into high-temperature and high-pressure overheated gas in a cylinder of the compressor 1 and then discharging the high-temperature and high-pressure overheated gas into a condenser 4, enabling the high-temperature and high-pressure refrigerant gas to dissipate heat through the condenser 4, enabling the temperature to continuously decrease, gradually cooling the high-temperature and high-pressure refrigerant gas into normal-temperature and high-pressure saturated vapor, further cooling the high-temperature and high-pressure saturated vapor into saturated liquid, enabling the temperature to not decrease, enabling the temperature to be the condensation temperature, enabling the pressure of the refrigerant to be almost unchanged in the whole condensation process, enabling the condensed refrigerant saturated liquid to flow into a capillary tube 3 after moisture and impurities are filtered through a drying filter, enabling the refrigerant saturated liquid to be throttled and reduced in pressure, enabling the refrigerant to be changed into normal-temperature and low-pressure wet vapor, enabling the normal-temperature and low-pressure wet vapor to be vaporized in the evaporator 2, enabling the temperature and low-pressure wet vapor to be absorbed into the ambient temperature and the low-pressure vapor, enabling the refrigerant to be gradually cooled into the saturated vapor, enabling the temperature and the low-pressure vapor to be cooled into the saturated vapor, and low-temperature and low-pressure vapor to be cooled into the saturated vapor, and low-temperature and saturated vapor to be cooled into the saturated vapor.
In the embodiment of the invention, because the quick-freezing mode of the traditional refrigerator usually exits after the operation for a fixed time, when less food is put in and the temperature of the food is low, the energy consumption is excessive, and when more food is put in and the temperature of the food is high, the quick-freezing time is often insufficient. The intelligent quick freezing chamber is designed newly, and the running parameters, modes and control parameters of the refrigerator in a quick freezing mode are automatically set by checking parameters such as food types, weights, temperatures and the like, so that the purpose of saving energy is achieved while the food is quickly frozen.
The controller in the refrigerator is configured to obtain the type of at least one food material placed in the quick freezing chamber, the corresponding weight of the food material and the real-time temperature when a quick freezing mode entering instruction is detected, obtain the environment temperature, obtain the corresponding specific heat capacity of the food material in a database according to the type of the food material, calculate the total refrigerating capacity required by the quick freezing chamber when the preset quick freezing target temperature is reached according to the specific heat capacity of the food material, the weight of the food material and the real-time temperature of all the food materials in the quick freezing chamber, determine the quick freezing mode of the quick freezing chamber according to the total refrigerating capacity and the environment temperature, and control the operation of the refrigerator according to the operation parameters of the quick freezing mode.
Referring to fig. 5, fig. 5 is a first workflow diagram of a controller in a refrigerator according to an embodiment of the present invention, where the controller is configured to execute steps S11 to S15. When a user opens a quick-freezing mode on a display screen, triggering a quick-freezing mode entering instruction, acquiring the type, real-time temperature and weight of food materials put into the quick-freezing chamber, acquiring the specific heat capacity of the food materials in a database based on the type of the food materials, calculating the refrigerating capacity required by the food materials based on the specific heat capacity, the real-time temperature and the weight of the food materials, and accumulating the refrigerating capacity of the food materials to obtain the total refrigerating capacity. And after the environmental temperature is obtained, determining a quick-freezing mode corresponding to the quick-freezing chamber at the moment according to the total refrigerating capacity and the total refrigerating capacity. The quick-freezing mode comprises a common quick-freezing mode and a quick-freezing mode, wherein the refrigerating capacity of the common quick-freezing mode in unit time is smaller than that of the quick-freezing mode in unit time.
Illustratively, the target temperature for the quick-freeze is-25 ℃, and the temperature of the quick-freeze chamber 20 is controlled to be equal to the temperature of the freezing chamber 20 before the quick-freeze mode is not turned on. When the refrigerator is in the normal quick-freezing mode, the rotation speed of the compressor in the refrigerator is controlled to be the first press rotation speed, the rotation speed of the fan is controlled to be the first fan rotation speed, the temperature of the freezing chamber is unchanged at the moment, the temperature of the quick-freezing chamber is reduced to minus 25 ℃, the first compressor rotation speed and the first fan rotation speed can be normal rotation speeds of the compressor and the fan when the refrigerator does not enter the quick-freezing mode, namely, the temperature of the quick-freezing chamber can reach the target quick-freezing temperature in ideal time according to the original parameter setting mode of the refrigerator at the moment, or the first compressor rotation speed is larger than the compressor rotation speed before the refrigerator does not enter the normal quick-freezing mode, and the first fan rotation speed is larger than the fan rotation speed before the refrigerator does not enter the normal quick-freezing mode. When the refrigerator is in a quick freezing mode, controlling the rotation speed of a compressor in the refrigerator to be the rotation speed of a second compressor and the rotation speed of a fan to be the rotation speed of the second fan, increasing the rotation speed of the compressor to increase the refrigerating capacity, increasing the rotation speed of the fan to enable the increased cold capacity to be output to a compartment more quickly after the rotation speed of the compressor is increased, increasing the air circulation ratio, increasing the refrigerating on-off point, preferentially refrigerating the quick-freezing chamber, recovering the refrigerating on-off point until the quick-freezing chamber exits from the quick-freezing mode, and recovering the refrigerating temperature control as soon as possible after the quick-freezing chamber meets the temperature requirement, wherein the rotation speed of the second compressor is larger than the rotation speed of the first compressor, and the rotation speed of the second fan is larger than the rotation speed of the first fan.
In the embodiment of the invention, when a user needs to quick-freeze the food materials in the quick-freeze chamber, a proper quick-freeze mode can be automatically determined according to the type, weight and temperature of the food, and the quick-freeze operation time and other load control are determined according to the quick-freeze mode, so that the purpose of saving energy is achieved while the food is quickly frozen.
The controller is further configured to pop up prompt information for prompting a user to input the type of food which is required to be stored in the quick freezing chamber on the display screen when a quick freezing mode entering instruction is detected, acquire a weight change value detected by the weight sensor after the type of food of the current food is acquired, take the weight change value as the weight of the food of the current food, and acquire the real-time temperature of the current food measured by the food temperature detection device.
Referring to fig. 6, fig. 6 is a second workflow diagram of a controller in a refrigerator according to an embodiment of the present invention, and the step 512 includes steps 5121 to 5123. When a quick-freezing mode entering instruction is detected, a prompt message is popped up on a display screen to prompt a user to input the food type 1 (corresponding to the specific heat capacity C1) of the food 1, the user is prompted to place the food 1 into a quick-freezing chamber after inputting, a main control board records the food temperature T1 and the real-time weight m1 of the food 1 after the quick-freezing chamber is placed, an infrared temperature measurement principle can be adopted by the food temperature detection device, and the weighing weight of the weight sensor before the food is not placed on a superconducting tray is compared with the weighing weight after the food is placed, so that the real-time weight of the food 1 is obtained, and the information recording of the food 1 is completed. Meanwhile, the display screen prompts the input of the food material type 2 of the food material 2, the system records C2, T2 and m2 in sequence until the system clicks to confirm and close the door body after recording all food information, and the quick-freezing mode is formally started. The controller automatically calculates the total refrigeration Q required to freeze these food materials to-25 ℃, satisfying the following equation:
Q=C1*m1*(T1-(-25))+C2*m2*(T2-(-25))+C3*m3*(T3-(-25))...Cn*mn*(Tn-(-25));
Wherein n is the number of food materials stored in the quick-freezing chamber.
In the embodiment of the invention, the user is prompted to sequentially put food materials through the display screen, so that the weight sensor and the food material temperature detection device can acquire the weight and the temperature of the food materials one by one, the weight and the temperature corresponding to each food material can be accurately acquired, and the accuracy of the calculation of the refrigerating capacity can be improved.
The quick-freezing mode of the quick-freezing chamber is determined according to the total refrigerating capacity and the environment temperature, and comprises the steps of obtaining preset standard refrigerating capacity and calculating a refrigerating capacity threshold according to the standard refrigerating capacity, wherein the quick-freezing mode is a common quick-freezing mode when the total refrigerating capacity is smaller than or equal to the refrigerating capacity threshold, the quick-freezing mode is a common quick-freezing mode when the total refrigerating capacity is larger than the refrigerating capacity threshold and the environment temperature is smaller than a preset ring temperature threshold, and the quick-freezing mode is a quick-freezing mode when the total refrigerating capacity is larger than the refrigerating capacity threshold and the environment temperature is larger than or equal to the ring temperature threshold.
Referring to fig. 7, fig. 7 is a third workflow diagram of the controller in the refrigerator according to the embodiment of the present invention, and the step S15 includes steps S151 to S155. The standard refrigerating capacity is the refrigerating capacity required by measuring purified water with preset weight and preset temperature when reaching the target speed temperature in the common quick-freezing mode, such as purified water with the weight of 1kg and the temperature of 25 ℃, and the refrigerating capacity required by cooling to-25 ℃ in the common quick-freezing mode is the standard refrigerating capacity Q Label (C), wherein Q Label (C) =4200 x1 x (25-0) +2100 x1 x (0- (-25)), the specific heat capacity of water is 4200J/kg. ℃, and the specific heat capacity of ice is 2100J/kg. ℃. In the embodiment of the invention, the refrigerating capacity threshold value Q Threshold value = 2*Q. If the total refrigerating capacity is smaller than or equal to the refrigerating capacity threshold, namely Q is smaller than or equal to Q Threshold value, the refrigerating capacity required by the quick freezing chamber can reach the target quick freezing temperature quickly in a smaller time, and the refrigerator is controlled to enter the common quick freezing mode in consideration of energy-saving operation of the refrigerator. If the total refrigerating capacity is larger than the refrigerating capacity threshold, namely Q > Q Threshold value is met, the environment temperature is further obtained, when the environment temperature T is smaller than the environment temperature threshold, the environment temperature T is lower, the environment temperature can be transmitted to the quick-freezing chamber at the moment, the refrigerating capacity required by the quick-freezing chamber can reach the target quick-freezing temperature quickly at the moment when the refrigerating capacity is smaller, and the refrigerator is controlled to enter the common quick-freezing mode. And when the ambient temperature T is greater than or equal to a ring temperature threshold value, controlling the refrigerator to enter the quick freezing mode.
In the embodiment of the invention, when the quick freezing mode of the quick freezing chamber is determined, the influence caused by the ambient temperature is considered besides the total refrigerating capacity of the food materials, and the purpose of saving energy is achieved while quick freezing of the food is realized.
The controller is further configured to calculate a multiple of the total refrigerating capacity and a preset standard refrigerating capacity after a quick-freezing mode of the quick-freezing chamber is determined, calculate a product of the multiple and a reference operation duration corresponding to the quick-freezing mode, and take the product as a quick-freezing operation duration threshold corresponding to the quick-freezing mode, wherein the reference operation duration is preset operation durations corresponding to food materials with the same weight, temperature and type when reaching the target quick-freezing temperature in different quick-freezing modes, and control the refrigerator to exit the quick-freezing mode when the operation duration of the refrigerator in the quick-freezing mode reaches the quick-freezing operation duration threshold.
Referring to fig. 8, fig. 8 is a fourth operation flowchart of a controller in a refrigerator according to an embodiment of the present invention, where the controller is further configured to execute steps S16 to S19 after executing step S15. Purified water with the weight of 1kg and the temperature of 25 ℃ is cooled to-25 ℃ in the common quick-freezing mode, namely the reference operation time t1 of the common quick-freezing mode, and the operation time of the common quick-freezing mode is calculated, wherein Q1＝N1＊Q Label (C)(N1 represents the multiple of Q Label (C)), and the corresponding quick-freezing operation time threshold value=N1＊t1 of the common quick-freezing mode. Purified water with the weight of 1kg and the temperature of 25 ℃ is cooled to-25 ℃ in the rapid freezing mode, namely the reference operation time t2 of the rapid freezing mode, and the rapid freezing mode operation time is calculated, wherein Q2＝N2＊Q Label (C)(N2 represents the multiple of Q Label (C), and the corresponding rapid freezing operation time threshold=N2＊t2 of the rapid freezing mode. And when the operation time of the refrigerator in the quick-freezing mode reaches the quick-freezing operation time threshold, exiting the quick-freezing mode, and at the moment, operating according to the original compressor rotating speed and the fan rotating speed, and recovering the refrigerating on-off point.
Further, the complete workflow of the controller may refer to fig. 9, and fig. 9 is a fifth workflow of the controller in the refrigerator according to the embodiment of the present invention.
Compared with the prior art, the refrigerator disclosed by the invention has the advantages that the weight induction sensor and the temperature sensor are added in the quick freezing chamber of the refrigerator, when a user needs to quickly freeze food materials in the quick freezing chamber, a proper quick freezing mode can be automatically determined according to the types, the weights and the temperatures of the food, the quick freezing operation time length and other load control can be determined according to the quick freezing mode, and the purpose of quickly freezing the food is achieved while the energy conservation is achieved.
Referring to fig. 10, fig. 10 is a flowchart of a quick-freezing control method for a refrigerator, provided in an embodiment of the present invention, wherein a quick-freezing chamber is provided in the refrigerator, a weight sensor and a food temperature detecting device are provided in the quick-freezing chamber, the weight sensor is used for detecting the weight of food stored in the quick-freezing chamber, and the food temperature detecting device is used for detecting the real-time temperature of the food in the quick-freezing chamber, and the quick-freezing control method for the refrigerator includes:
S1, when a quick-freezing mode entering instruction is detected, acquiring the type of at least one food material placed in the quick-freezing chamber, the weight of the corresponding food material and the real-time temperature, and acquiring the environment temperature;
s2, acquiring corresponding specific heat capacity of the food materials in a database according to the types of the food materials;
S3, calculating the total refrigerating capacity required by the quick freezing chamber when the quick freezing chamber reaches a preset quick freezing target temperature according to the specific heat capacity, the weight and the real-time temperature of all food materials in the quick freezing chamber;
S4, determining a quick-freezing mode of the quick-freezing chamber according to the total refrigerating capacity and the environmental temperature, and controlling the operation of the refrigerator according to the operation parameters of the quick-freezing mode.
Specifically, the quick-freezing mode includes a normal quick-freezing mode and a quick-freezing mode, wherein the refrigerating capacity of the normal quick-freezing mode in unit time is smaller than that of the quick-freezing mode in unit time.
The quick-freezing mode of the quick-freezing chamber is determined according to the total refrigerating capacity and the environment temperature, and comprises the steps of obtaining preset standard refrigerating capacity and calculating a refrigerating capacity threshold according to the standard refrigerating capacity, wherein the quick-freezing mode is a common quick-freezing mode when the total refrigerating capacity is smaller than or equal to the refrigerating capacity threshold, the quick-freezing mode is a common quick-freezing mode when the total refrigerating capacity is larger than the refrigerating capacity threshold and the environment temperature is smaller than a preset ring temperature threshold, and the quick-freezing mode is a quick-freezing mode when the total refrigerating capacity is larger than the refrigerating capacity threshold and the environment temperature is larger than or equal to the ring temperature threshold.
The method comprises the steps of determining a quick-freezing mode of the quick-freezing chamber, calculating the multiple of the total refrigerating capacity and a preset standard refrigerating capacity, calculating the product of the multiple and a reference operation duration corresponding to the quick-freezing mode, and taking the product as a quick-freezing operation duration threshold corresponding to the quick-freezing mode, wherein the reference operation duration is preset operation durations corresponding to food materials with the same weight, temperature and type when reaching the target quick-freezing temperature in different quick-freezing modes, and controlling the refrigerator to exit the quick-freezing mode when the operation duration of the refrigerator in the quick-freezing mode reaches the quick-freezing operation duration threshold.
Specifically, the standard refrigerating capacity is the refrigerating capacity required by measuring purified water with preset weight and preset temperature in a common quick-freezing mode when the purified water reaches the target speed temperature.
The method comprises the steps of controlling the rotation speed of a compressor in the refrigerator to be a first press rotation speed and the rotation speed of a fan to be a first fan rotation speed when the refrigerator is in a normal quick freezing mode, controlling the rotation speed of the compressor in the refrigerator to be a second press rotation speed and the rotation speed of the fan to be a second fan rotation speed when the refrigerator is in a high-speed freezing mode, and turning up a cold storage start-up and shut-down point until the refrigerator exits from the high-speed freezing mode, wherein the second press rotation speed is larger than the first press rotation speed and the second fan rotation speed is larger than the first fan rotation speed.
The refrigerator further comprises a display screen, a display screen and a control unit, wherein the display screen is arranged on the refrigerator door and used for displaying prompt information and receiving touch operation of a user;
The method comprises the steps of providing a prompt message for prompting a user to input the type of food which is required to be stored in the quick freezing chamber on the display screen when a quick freezing mode entering instruction is detected, acquiring a weight change value detected by the weight sensor after the type of the food of the current food is acquired, taking the weight change value as the weight of the food of the current food, and acquiring the real-time temperature of the current food measured by the food temperature detection device.
Compared with the prior art, the refrigerator quick-freezing control method disclosed by the invention has the advantages that the weight induction sensor and the temperature sensor are added in the quick-freezing chamber of the refrigerator, when a user needs to quick-freeze food materials in the quick-freezing chamber, a proper quick-freezing mode can be automatically determined according to the types, the weights and the temperatures of the food materials, the quick-freezing operation time length and other load control can be determined according to the quick-freezing mode, and the purpose of saving energy is achieved while the food is quickly frozen.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.