CN112747555A - Control method and device for refrigerator and direct-current refrigerator - Google Patents

Abstract

The application relates to the technical field of refrigerators, and discloses a control method for a refrigerator, wherein the refrigerator comprises a metal cavity with an internal radio frequency source, the radio frequency source and the metal cavity form a resonant cavity and are configured to send electromagnetic energy to food materials in the metal cavity, and the control method comprises the following steps: detecting the actual temperature in the metal cavity; and controlling the air supply amount of cold air conveyed into the metal cavity and the operation of the radio frequency source according to the actual temperature. According to the control method, the actual temperature in the metal cavity is detected, and then the air supply quantity of cold air conveyed into the metal cavity and the operation of the radio frequency source are controlled according to the actual temperature, so that the food materials in the metal cavity can be stored in a supercooled state, and the storage period of the food materials is prolonged under the condition that the original flavor of the food materials is maintained. The application also discloses a control device for the refrigerator and the direct current refrigerator.

Description

Control method and device for refrigerator and direct-current refrigerator

Technical Field

The application relates to the technical field of refrigerators, for example, to a control method and device for a refrigerator and a direct current refrigerator.

Background

Along with the increasing living standard of people, the requirement of people on the fresh-keeping effect of food materials stored in the refrigerator is higher and higher. For the evaluation of the food material fresh-keeping effect, not only the length of the storage period is considered, but also whether the stored food material maintains the original flavor is considered. The traditional refrigerator generally comprises a refrigeration function and a freezing function, wherein the food materials stored under the refrigeration function can better maintain the original flavor, but the storage temperature is higher than 0 ℃, under the condition of the temperature, the activity of enzyme in the food materials is stronger, the food materials are easier to decay, and the storage period is shorter; the food materials stored under the freezing function can prolong the storage period to a greater extent, but the integrity of the internal cells of the food materials is damaged due to the freezing of the food materials, and the original flavor of the food materials cannot be maintained.

At present, many refrigerators quit the zero-temperature preservation function, so that food materials stored under the zero-temperature preservation function are always kept in an environment of 0 ℃ to prevent the food materials from being frozen and can be stored in a low-temperature environment.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

at 0 ℃, the activities of a plurality of microorganisms and enzymes in the food material are still stronger, although the storage period of the food material is prolonged within a certain range under the condition of maintaining the original flavor of the food material compared with the food material stored under the refrigeration function, the storage period of the food material is still shorter, and the user requirements cannot be met.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a control method for a refrigerator, a control device for the refrigerator and a direct current refrigerator, so as to solve the technical problem that the storage period of food materials is short under the condition of maintaining the original flavor of the food materials.

In some embodiments, the refrigerator includes a metal cavity having a radio frequency source disposed therein, the radio frequency source and the metal cavity forming a resonant cavity configured to transmit electromagnetic energy to food material within the metal cavity;

the control method for the refrigerator includes:

detecting the actual temperature in the metal cavity;

and controlling the air supply amount of cold air conveyed into the metal cavity and the operation of the radio frequency source according to the actual temperature.

In some embodiments, the control apparatus for a refrigerator includes: a processor and a memory storing program instructions, wherein the processor executes the control method for the refrigerator when executing the program instructions.

In some embodiments, the direct current refrigerator includes a refrigerating chamber, a freezing chamber, and a first evaporator, and air cooled by the first evaporator is sent into the refrigerating chamber and the freezing chamber, and the direct current refrigerator further includes:

the functional chamber comprises a metal cavity body, wherein a radio frequency source is arranged in the metal cavity body, the radio frequency source and the metal cavity body form a resonant cavity, and the resonant cavity is configured to send electromagnetic energy to food materials in the metal cavity body;

the second evaporator, the air cooled by the second evaporator is sent into the metal cavity to refrigerate;

and the direct current power supply module is connected with an external alternating current power supply and is configured to convert external alternating current into direct current and provide the direct current for a related power receiving device in the refrigerator.

The control method for the refrigerator, the control device for the refrigerator and the direct current refrigerator provided by the embodiment of the disclosure can realize the following technical effects:

the radio frequency source is arranged in the metal cavity of the refrigerator, and the air supply quantity of cold air conveyed into the metal cavity and the operation of the radio frequency source are controlled according to the actual temperature detected in the metal cavity, so that the food materials in the metal cavity can be stored in a supercooled state, and the storage period of the food materials is prolonged under the condition of maintaining the original flavor of the food materials.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a flowchart illustrating a control method for a refrigerator according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a control device for a refrigerator according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a control device for a refrigerator according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a dc refrigerator provided in an embodiment of the present disclosure;

FIG. 5 is a schematic view of an air duct system of a DC refrigerator provided in an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a metal cavity provided in an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a metal cavity provided in an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a metal cavity provided in an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a metal cavity provided in an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a metal cavity provided in an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a metal cavity provided in an embodiment of the present disclosure.

Reference numerals:

10: a DC refrigerator; 20: a functional compartment; 21: a metal cavity; 22: a radio frequency source; 221: an antenna; 222: a partition plate; 30: a refrigerating chamber; 40: a freezing chamber; 50: a first evaporator; 60: a second evaporator; 201: a detection module; 202: a control module; 300: a processor; 301: a memory; 302: a communication interface; 303: a bus.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The embodiment of the disclosure provides a control method for a refrigerator, wherein the refrigerator comprises a metal cavity 21 with an internal radio frequency source 22, and the radio frequency source 22 and the metal cavity 21 form a resonant cavity configured to transmit electromagnetic energy to food materials in the metal cavity 21.

Generally, when a refrigerator is used to keep food fresh, the fresh-keeping effect may include a storage period of the food and a degree of maintaining the original flavor of the food. Wherein, the lower temperature can prolong the storage period of the food, but when the temperature is reduced to be below zero degree centigrade, namely below the melting point of water, namely the temperature range of the water in a solid state, at the moment, water molecules in food cells are frozen, the integrity of the food cells is damaged, and the original flavor of the preserved food is also damaged to a certain extent; when the temperature is higher, the water in the food can not freeze, the food cells can not be damaged, the original flavor of the food can be maintained, but the activity of microorganisms and enzymes in the food is stronger under the condition of higher temperature, the reaction speed is higher, and the storage period of the food can be greatly shortened.

Herein, cold air is conveyed into the metal cavity to keep the temperature in the metal cavity at a lower temperature; the radio frequency source can be used for sending electromagnetic energy to food, so that molecular motion in the food is accelerated, molecular energy is increased, the food can not be frozen at a lower temperature due to the cooperation of the radio frequency source and the metal cavity, the storage temperature of the food is maintained at the lower temperature, the storage period of the food is prolonged, the non-freezing state is maintained, and the original flavor of the food is maintained.

In some embodiments, as shown in fig. 1, the present application provides a control method for a refrigerator, which can be used to solve the problem of short storage period of food materials while maintaining original flavor of the food materials. Specifically, the control method mainly comprises the following steps:

s101, detecting the actual temperature in the metal cavity.

Generally, refrigerators are provided with a plurality of temperature detecting devices, such as: a temperature sensor. Therefore, through the configured temperature detection device, the temperature obtained by the temperature detection device closest to the metal cavity is selected due to the good heat conduction performance of the metal, and can be regarded as the actual temperature in the metal cavity, and therefore the actual temperature in the metal cavity can be obtained according to the temperature obtained by the temperature sensor closest to the metal cavity of the refrigerator.

Optionally, a temperature detection device is arranged in the metal cavity of the refrigerator, and the actual temperature in the metal cavity is obtained through the temperature obtained by the temperature detection device in the metal cavity. Here, when the refrigerator is in an operating state, the temperature detection device therein can start temperature detection.

And S102, controlling the air supply amount of cold air conveyed into the metal cavity and the operation of the radio frequency source according to the actual temperature.

Optionally, the metal cavity is further provided with a cold air conveying device, and the cold air conveying device may include an air duct communicated with the refrigerator refrigeration heat exchanger, and a fan for conveying cold air in the air duct to the metal cavity.

Optionally, the air output of the cold air conveying device can be adjusted, and the adjustment of the temperature in the metal cavity is realized by adjusting the air output, so that the food materials in the metal cavity can be stored in a supercooled state, and the storage period of the food materials is prolonged under the condition of maintaining the original flavor of the food materials.

Here, the supercooled state means a state in which water in the food material is maintained in a liquid state at a temperature lower than the freezing point without freezing into ice.

In some embodiments, under the condition that other control radio frequency sources are satisfied with operating, before the control radio frequency sources operate, whether the metal cavity is in a closed state or not can be detected; when the metal cavity is detected to be in a closed state, controlling the radio frequency source to operate; and if the metal cavity is detected to be in an open state, controlling the radio frequency source to keep in a closed state.

Alternatively, the frequency of the electromagnetic wave transmitted by the radio frequency source into the metal cavity may be between 3kHz and 300 GHz. Specifically, it may be 3kHz, 10kHz, 100kHz, 1MHz, 10MHz, 100MHz, 1GHz, 10GHz, 100GHz or 300 GHz.

Optionally, when the actual temperature is higher than the first temperature, cold air is conveyed into the metal cavity by a first air supply amount, and the radio frequency source is in a closed state;

when the actual temperature is lower than or equal to the first temperature and higher than or equal to the second temperature, cold air is conveyed into the metal cavity by a second air supply quantity, and the radio frequency source works at a first power;

and when the actual temperature is lower than the second temperature, the cold air is stopped being conveyed into the metal cavity, and the radio frequency source works with the second power.

In the above step, the first temperature is higher than the second temperature. The first temperature is used for representing a maximum temperature critical value of a temperature range which can maintain a good fresh-keeping effect of food; the second temperature is used to represent a minimum temperature threshold for a temperature range in which good freshness of the food can be maintained.

Alternatively, the first temperature may be 0 degrees celsius at standard atmospheric pressure. The second temperature may be in the range of-8 to-1 degrees celsius. Specifically, the second temperature may be-8, -7, -6, -5, -4, -3, -2, or-1 degrees Celsius.

Optionally, the first temperature is used for representing a critical temperature at which the radio frequency source needs to be started in the metal cavity of the refrigerator, and when the actual temperature in the metal cavity is higher than the first temperature, the radio frequency source does not need to be started; when the actual temperature in the metal cavity is less than or equal to the first temperature, the radio frequency source needs to be started. The first temperature is also used for representing the critical temperature that the refrigerator needs to switch larger air volume when conveying cold air volume into the metal cavity, and when the actual temperature in the metal cavity is higher than the first temperature, the temperature is higher than the temperature range capable of maintaining the good fresh-keeping effect of food, and the cold air needs to be conveyed into the metal cavity by the larger air volume; when the actual temperature in the metal cavity is less than or equal to the first temperature, the temperature is in the temperature range capable of maintaining the good fresh-keeping effect of the food, and cold air does not need to be conveyed into the metal cavity by large air quantity.

Optionally, the second temperature is used for representing a critical temperature at which cold air conveying needs to be closed in the metal cavity of the refrigerator, and when the actual temperature in the metal cavity is lower than the second temperature, cold air conveying does not need to be started; when the actual temperature in the metal cavity is greater than or equal to the second temperature, cold air conveying needs to be started. The second temperature is also used for representing the critical temperature of the refrigerator for switching the power of the electromagnetic wave transmitted by the radio frequency source to the metal cavity, and when the actual temperature in the metal cavity is lower than the second temperature, the temperature is lower than the temperature range capable of maintaining the good fresh-keeping effect of the food, and the power of the electromagnetic wave transmitted by the radio frequency source needs to be switched to higher power; when the actual temperature in the metal cavity is higher than or equal to the second temperature, the temperature is in the temperature range capable of maintaining the good fresh-keeping effect of the food, and the electromagnetic waves can be sent into the metal cavity with low power.

Optionally, the first air volume is greater than or equal to the second air volume. Here, the larger air volume in the foregoing embodiment is expressed as the first air volume; the smaller air volume in the foregoing embodiment is expressed by the second air volume. Here, the air volume can be understood as an air volume.

Optionally, the first air supply amount is used for representing an air supply amount for conveying cold air into the metal cavity when the actual temperature in the metal cavity is higher than the first temperature.

Optionally, the second air supply amount is used for representing the air supply amount for conveying cold air into the metal cavity when the actual temperature in the metal cavity is less than or equal to the first temperature and is higher than or equal to the second temperature.

Optionally, the first power is less than or equal to the second power. Here, the first power represents a smaller power at which the radio frequency source in the foregoing embodiment transmits electromagnetic waves into the metal cavity with a smaller power; the rf source in the foregoing embodiment is represented by the second power, and transmits the larger power of the electromagnetic wave into the metal cavity with the larger power.

Alternatively, the radio frequency source may be rated at between 10W and 500W. Specifically, it may be 10W, 50W, 100W, 150W, 200W, 250W, 300W, 350W, 400W, 450W, or 500W.

Optionally, the first power is used to represent the power of the radio frequency source transmitting the electromagnetic wave into the metal cavity when the actual temperature in the metal cavity is less than or equal to the first temperature and greater than or equal to the second temperature.

Optionally, the second power is used to represent the power of the rf source transmitting the electromagnetic wave into the metal cavity when the actual temperature in the metal cavity is greater than the first temperature.

Alternatively, the first air supply amount may be a preset air supply amount.

In some embodiments, the control method for a refrigerator further includes: the first air supply amount is adjusted according to the actual temperature. Alternatively, the first air volume may not be a preset air volume value, and the air volume value corresponding to the first air volume may be adjusted according to the change of the actual temperature.

In this way, the first air supply quantity is configured to be a variable which can be adjusted according to the first air supply quantity, and the first air supply quantity is a variable which can be adjusted according to the actual temperature in the metal cavity, so that the food material in the metal cavity can be stored in an overcooled state in the control method of the refrigerator, and the storage period of the food material is prolonged under the condition that the original flavor of the food material is maintained; the temperature in the metal cavity is more accurately controlled, and the response speed of control is improved.

Alternatively, the closer the actual temperature is to the first temperature, the smaller the first air blowing amount. And when the actual temperature is higher than the first temperature, conveying cold air into the metal cavity by using a first air supply quantity. Therefore, when the actual temperature is higher and exceeds the temperature range with a good preservation effect, cold air is conveyed into the metal cavity by the first air supply quantity. When the actual temperature is far away from the first temperature, the actual temperature is higher, and the air volume of the cold air to be conveyed is larger; conversely, when the actual temperature is closer to the first temperature, the actual temperature is lower relative to the temperature far away from the first temperature, and the air volume of the cold air to be conveyed is smaller. Like this, when actual temperature is higher than first temperature, more accurate to the control of the temperature in the metal cavity, when the temperature was too high, improved the response speed of control, made the temperature in the metal cavity descend more rapidly, when the temperature was more close first temperature, was that the temperature change rate in the metal cavity got off slowly to avoid descending too much, be less than better fresh-keeping effect temperature range.

Herein, the food includes cooked food and food materials such as meat, vegetables and the like to be cooked, and fruits and the like which can be directly eaten raw, and is not limited herein. Food material is also understood to be food in the broader sense.

Optionally, the initial value of the first air supply quantity is related to the initial temperature of the food material in the metal cavity. The higher the initial temperature of the food material is, the larger the initial value of the first air supply amount is.

Optionally, an infrared thermometer may be disposed in the metal cavity, and the initial temperature of the food material in the metal cavity may be obtained through non-contact detection by the infrared thermometer. For example, when a user puts a piece of meat into the metal cavity, the infrared thermometer detects that the temperature of the meat is 10 ℃, and the initial value of the first air supply amount is controlled to be a; when a user puts a piece of meat with the same size as the previous example into the metal cavity, the infrared thermometer detects that the temperature of the meat is 5 ℃, and the initial value of the first air supply quantity is controlled to be b; wherein a is greater than b.

Here, the initial temperature of the food material may be used to represent the temperature of the food material when the food material in the room temperature environment is placed in the metal cavity of the refrigerator; the initial value of the first air supply volume may be used to characterize the air supply volume at the start of delivery of the cool air when the actual temperature is greater than the first temperature. Generally, the temperature of the food material in the room temperature environment will be higher than the first temperature, and it can also be understood that the initial temperature of the food material in the metal cavity is higher than the first temperature. The higher the initial temperature of the food in the metal cavity is, the higher the cold quantity required to be conveyed to the metal cavity is stored in the environment with lower temperature, and at the moment, the higher the air quantity demand for conveying cold air into the metal cavity by the first air quantity is, the larger the initial value of the first air quantity can be controlled.

Optionally, the control method for the refrigerator further comprises: and detecting the weight of the food materials in the metal cavity. Optionally, a weight detection device may be disposed in the metal cavity, and when the food material is placed in the metal cavity, the weight detection device may detect the weight of the food material placed in the metal cavity.

Generally, the larger the weight of the food material is, the larger the cooling capacity is required for cooling the food material when the food material is refrigerated for storage; therefore, the larger the amount of cold air it needs to deliver to it.

Alternatively, the second air supply amount may be a preset air supply amount.

Optionally, the second air output is related to the weight of the food material in the metal cavity, and the second air output is larger when the weight of the food material is larger. The second air supply amount may not be a preset air supply amount value, and the second air supply amount may be an air supply amount value adjusted according to the weight of the food material in the metal cavity. For example, the larger the weight of the food material is, the larger the air volume value for controlling and adjusting the second air volume is. For example, when a user puts a piece of meat into the metal cavity, the weight detection device detects that the weight of the meat is 500 g, and the initial value of the second air supply amount is controlled to be a; when a user puts a piece of meat with the same temperature as the previous example into the metal cavity, the weight detection device detects that the weight of the meat is 200 g, and the initial value of the second air supply quantity is controlled to be b; wherein a is greater than b.

Optionally, an air volume adjusting device may be disposed at a position where the cold air is conveyed into the metal cavity, the air volume adjusting device may be controlled by the control module 202, and when the control module 202 receives the weight of the food material detected by the weight detecting device, the control device may control the opening degree of the air volume adjusting device according to the weight of the food material. For example, when the weight of the food is large, the air supply amount is controlled to be increased; on the contrary, when the weight of the food material is smaller, the air supply amount is controlled to be reduced.

Generally, as the weight of the food material increases, in order to accelerate molecular motion in the food material, when the radio frequency source transmits electromagnetic energy to the food material, a large amount of power is required to increase molecular energy of the food material having a large weight.

Alternatively, the first power may be a predetermined power value.

Optionally, the first power is related to the weight of the food material in the metal cavity, and the larger the weight of the food material is, the larger the first power is. The first power may not be a preset power value, and the first power may be a power value adjusted according to the weight of the food material in the metal cavity. For example, the larger the weight of the food material is, the larger the power value for controlling and adjusting the first power is, so as to increase the molecular energy of the food material with larger weight.

Alternatively, the second power may be a predetermined power value.

Optionally, the second power is related to the weight of the food material in the metal cavity, the larger the weight of the food material, the larger the second power. The second power may not be a preset power value, and the second power may be a power value adjusted according to the weight of the food material in the metal cavity. For example, the larger the weight of the food material is, the larger the power value for controlling and adjusting the second power is, so as to increase the molecular energy of the food material with larger weight.

Therefore, by detecting the actual temperature in the metal cavity and controlling the air supply quantity and the operation of the radio frequency source for conveying cold air into the metal cavity according to the actual temperature, the food materials in the metal cavity can be stored in a supercooled state, and the storage period of the food materials is prolonged under the condition of maintaining the original flavor of the food materials.

In some embodiments, the control method for a refrigerator further includes: the radio frequency source is disconnected when the metal cavity is opened. Optionally, when the actual temperature is lower than the first temperature, the radio frequency source is turned on; when the actual temperature is still within the range smaller than the first temperature, the metal cavity is opened, and the working state of the radio frequency source is controlled to be disconnected; if the metal cavity is closed again, if the detected actual temperature is still lower than the first temperature, the radio frequency source can be controlled to be opened again.

Optionally, under the condition that other control radio frequency sources are satisfied with the operation, before the control radio frequency sources are operated, whether the metal cavity is in a closed state or not can be detected; when the metal cavity is detected to be in a closed state, controlling the radio frequency source to operate; and if the metal cavity is detected to be in an open state, controlling the radio frequency source to keep in a closed state.

Therefore, the food materials in the metal cavity can be stored in a supercooled state, and the storage period of the food materials is prolonged under the condition of maintaining the original flavor of the food materials; and the condition that the refrigerator is damaged or a user is injured due to electromagnetic leakage caused by the fact that the radio frequency source still keeps a state of transmitting electromagnetic waves with certain power when the metal cavity is opened can be avoided.

The embodiment of the present disclosure provides a control device for a refrigerator, as shown in fig. 2, wherein the refrigerator includes a metal cavity in which a radio frequency source is disposed, the radio frequency source and the metal cavity constitute a resonant cavity configured to transmit electromagnetic energy to food materials in the metal cavity; the control device includes: a detection module 201 configured to detect an actual temperature within the metal cavity; and the control module 202 is configured to control the air supply amount of cold air delivered into the metal cavity and the operation of the radio frequency source according to the actual temperature. For the description of the rf source and the metal cavity, reference may be made to the foregoing embodiments of the control method for a refrigerator, and further description is omitted here.

Optionally, the detection module 201 includes a temperature detection device disposed in the metal cavity, and the actual temperature in the metal cavity is obtained through the temperature obtained by the temperature detection device in the metal cavity.

Optionally, the control module 202 is further configured to: when the actual temperature is higher than the first temperature, cold air is conveyed into the metal cavity by first air supply quantity, and the radio frequency source is in a closed state; when the actual temperature is lower than or equal to the first temperature and higher than or equal to the second temperature, cold air is conveyed into the metal cavity by a second air supply quantity, and the radio frequency source works at a first power; and when the actual temperature is lower than the second temperature, the cold air is stopped being conveyed into the metal cavity, and the radio frequency source works with the second power.

Optionally, the first air volume is greater than or equal to the second air volume.

Optionally, the first power is less than or equal to the second power.

Therefore, by detecting the actual temperature in the metal cavity and controlling the air supply quantity and the operation of the radio frequency source for conveying cold air into the metal cavity according to the actual temperature, the food materials in the metal cavity can be stored in a supercooled state, and the storage period of the food materials is prolonged under the condition of maintaining the original flavor of the food materials.

In some embodiments, the control module 202 is further configured to: the first air supply amount is adjusted according to the actual temperature. For the description of the first air supply amount, reference may be made to the foregoing embodiment of the control method for the refrigerator, and details are not repeated herein.

Alternatively, the closer the actual temperature is to the first temperature, the smaller the first air blowing amount.

Optionally, the initial value of the first air supply quantity is related to the initial temperature of the food material in the metal cavity. The higher the initial temperature of the food material is, the larger the initial value of the first air supply amount is.

Optionally, the second air output is related to the weight of the food material in the metal cavity, and the second air output is larger when the weight of the food material is larger.

Optionally, the first power is related to the weight of the food material in the metal cavity, and the larger the weight of the food material is, the larger the first power is.

Optionally, the second power is related to the weight of the food material in the metal cavity, the larger the weight of the food material, the larger the second power.

For the descriptions of the second air output, the first temperature, the second temperature, the first power, the second power, the detection of the initial temperature of the food material, and the detection of the weight of the food material, reference may be made to the foregoing embodiments of the control method for a refrigerator, and further description thereof is omitted here.

Therefore, the actual temperature in the metal cavity is detected, and the air supply quantity of cold air conveyed into the metal cavity and the operation of the radio frequency source are controlled according to the actual temperature, so that the food materials in the metal cavity can be stored in a supercooled state, and the storage period of the food materials is prolonged under the condition of maintaining the original flavor of the food materials; in addition, the temperature in the metal cavity is more accurately controlled, and the response speed of control is improved.

In some embodiments, the control module 202 is further configured to: the radio frequency source is disconnected when the metal cavity is opened. For the description of controlling the on or off of the rf source, reference may be made to the foregoing embodiments of the control method for a refrigerator, and further description is omitted here.

For the above setting of the control module 202 on the radio frequency source, the food material in the metal cavity can be stored in a supercooled state, so that the storage period of the food material is prolonged under the condition of maintaining the original flavor of the food material; and the condition that the refrigerator is damaged or a user is injured because the radio frequency source still keeps a state of transmitting electromagnetic waves with certain power when the metal cavity is opened can be reduced.

The embodiment of the present disclosure provides a control device for a refrigerator, which is structurally shown in fig. 3 and includes:

a processor (processor)100 and a memory (memory)101, and may further include a Communication Interface (Communication Interface)102 and a bus 303. The processor 300, the communication interface 302 and the memory 301 may communicate with each other via a bus 303. The communication interface 302 may be used for information transfer. The processor 300 may call logic instructions in the memory 301 to perform the control method for the refrigerator of the above-described embodiment.

In addition, the logic instructions in the memory 301 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.

The memory 301 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 300 executes functional applications and data processing by executing program instructions/modules stored in the memory 301, that is, implements the control method for the refrigerator in the above-described method embodiment.

The memory 301 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 301 may include a high-speed random access memory, and may also include a nonvolatile memory.

The embodiment of the present disclosure provides a direct current refrigerator 10, as shown in fig. 4 and 5, including a refrigerating compartment 30, a freezing compartment 40, and a first evaporator 50, wherein air cooled by the first evaporator 50 is sent into the refrigerating compartment 30 and the freezing compartment 40, and further including: the functional compartment 20 comprises a metal cavity 21 with an internal radio frequency source 22, wherein the radio frequency source 22 and the metal cavity 21 form a resonant cavity and are configured to transmit electromagnetic energy to food materials in the metal cavity 21; a second evaporator 60, the air cooled by the second evaporator 60 is sent into the metal cavity 21 for refrigeration; and the direct current power supply module is connected with an external alternating current power supply and is configured to convert external alternating current into direct current and provide the direct current for a related power receiving device in the refrigerator. Among them, the refrigerator and the dc refrigerator 10 may be understood as a refrigerator.

Alternatively, the air cooled by the first evaporator 50 is communicated with the refrigerating compartment 30 and the freezing compartment 40 through an air duct; the air cooled by the second evaporator 60 is communicated with the functional compartment through an air duct, the functional compartment does not share one evaporator with the refrigerating compartment 40 of the refrigerating compartment 30, namely, the air supply of the functional compartment is independent of the refrigerating compartment 30 and the refrigerating compartment 40, so that the temperature regulation of the functional compartment is not influenced by the air supply conditions of the refrigerating compartment 30 and the refrigerating compartment 40, and the accurate control of the temperature of the functional compartment is realized.

Optionally, the air cooled by the second evaporator 60 is sent into the metal cavity 21 through an air duct, and an air volume adjusting device is arranged in the air duct. For example, the air volume adjusting device may be an air door, and the air volume of the air passing through the air duct is adjusted by adjusting the angle of the guide vane, so that the air cooled by the second evaporator 60 is supplied into the metal cavity 21. The damper may be a valve for adjusting the amount of ventilation, and is not limited herein.

Alternatively, the opening of the damper may be controlled by the control module 202.

Alternatively, the metal cavity 21 may be an ungrounded metal cavity 21, the rf source 22 further includes an antenna 221 disposed in the metal cavity 21 and an rf power unit connected to the antenna 221, the rf power unit is configured to output electromagnetic waves, and the antenna 221 is electrically connected to the metal cavity 21 in a non-conducting manner, so that the rf source 22 and the metal cavity 21 form a resonant cavity.

Alternatively, the number of the antennas 221 may be one or more. The antenna 221 may be disposed at any position of the metal cavity 21 as shown in fig. 6 to 11, which is not limited herein.

For example, the antenna 221 may be disposed at an upper portion of the metal cavity 21, which is convenient for installation and enables electromagnetic energy emitted by the antenna 221 to be more uniform when the electromagnetic energy is transmitted to the food material in the metal cavity 21.

Optionally, a partition 222 may be further disposed in the metal cavity 21, and the partition 222 is a light-transmitting partition 222, so that electromagnetic energy can penetrate through the partition 222, and in this case, the antenna 221 may be disposed below the partition 222. For example, the spacer 222 may be high borosilicate glass or tempered glass.

Alternatively, the dc power module may be a power distribution box capable of converting ac power to dc power in direct electrical communication with the household 220 volt ac.

In some embodiments, the dc refrigerator 10 further comprises the control device for a refrigerator described above. For the description of the control device for the refrigerator, reference may be made to the foregoing embodiments of the control device for the refrigerator, and the description thereof is omitted here.

Thus, the radio frequency source 22 is provided in the metal cavity 21 of the refrigerator, and the metal cavity 21 can be also fed with the air cooled by the second evaporator 60; by detecting the actual temperature in the metal cavity 21 and controlling the air output of cold air conveyed into the metal cavity 21 and the operation of the radio frequency source 22 according to the actual temperature, the food materials in the metal cavity 21 can be stored in a supercooled state, and the storage period of the food materials is prolonged under the condition of maintaining the original flavor of the food materials.

The disclosed embodiments provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described control method for a refrigerator.

The disclosed embodiments provide a computer program product comprising a computer program stored on a computer-readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the above-described control method for a refrigerator.

The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.

The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims (10)

1. A control method for a refrigerator, wherein the refrigerator comprises a metal cavity with a radio frequency source arranged inside, the radio frequency source and the metal cavity form a resonant cavity and are configured to transmit electromagnetic energy to food materials in the metal cavity, and the control method comprises the following steps:

detecting an actual temperature within the metal cavity;

and controlling the air supply amount of cold air conveyed into the metal cavity and the operation of the radio frequency source according to the actual temperature.

2. The control method according to claim 1,

when the actual temperature is higher than a first temperature, cold air is conveyed into the metal cavity by a first air supply quantity, and the radio frequency source is in a closed state;

when the actual temperature is lower than or equal to the first temperature and higher than or equal to a second temperature, cold air is conveyed into the metal cavity by a second air supply quantity, and the radio frequency source works with first power;

and when the actual temperature is lower than the second temperature, stopping conveying cold air into the metal cavity, wherein the radio frequency source works at a second power.

3. The control method according to claim 2, wherein the first air blowing amount is greater than or equal to the second air blowing amount.

4. The control method of claim 2, wherein the first power is less than or equal to the second power.

5. The control method according to claim 2, further comprising: and adjusting the first air supply quantity according to the actual temperature.

6. The control method according to claim 5, wherein the closer the actual temperature is to the first temperature, the smaller the first air blowing amount.

7. The control method according to claim 2, wherein the second air supply amount is related to a weight of the food material in the metal cavity, and the second air supply amount is larger as the weight of the food material is larger.

8. A control device for a refrigerator, comprising a processor and a memory storing program instructions, characterized in that the processor, when executing the program instructions, executes a control method according to any one of claims 1 to 7.

9. A direct current refrigerator, comprising a refrigerating chamber, a freezing chamber and a first evaporator, wherein air cooled by the first evaporator is sent into the refrigerating chamber and the freezing chamber, characterized by further comprising:

the functional compartment comprises a metal cavity body, wherein a radio frequency source is arranged in the metal cavity body, the radio frequency source and the metal cavity body form a resonant cavity, and the resonant cavity is configured to transmit electromagnetic energy to food materials in the metal cavity body;

the air cooled by the second evaporator is sent into the metal cavity for refrigeration;

and the direct current power supply module is connected with an external alternating current power supply and is configured to convert external alternating current into direct current and provide the direct current for a related power receiving device in the refrigerator.

10. The direct current refrigerator according to claim 9, further comprising a control device according to claim 8.

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