Unfreezing device, unfreezing process compensation method, controller and refrigerator

Abstract

The invention discloses an unfreezing device, an unfreezing process compensation method, a controller and a refrigerator, the unfreezing device comprises an unfreezing drawer, an air supply device used for supplying air into the unfreezing drawer and an electric field generation device used for generating an electric field into the unfreezing drawer, and the unfreezing process compensation method comprises the following steps: responding to an unfreezing instruction; starting an air supply device and an electric field generation device to unfreeze the food materials; in the thawing process, recording a first duration of stopping the air supply device, and recording a second duration of stopping the electric field generation device; and increasing the air supply speed of the air supply device and / or the electric field intensity of the electric field generated by the electric field generation device according to the first duration and the second duration. The air supply speed of the air supply device and the electric field intensity of the electric field generated by the electric field generation device are increased to compensate the working stop duration of the air supply device and the electric field generation device, so that the food materials can have enough thawing duration or complete thawing at a preset time point.

Description

Technical Field

[0001] The present application relates to the field of thawing technology, and in particular to a thawing device, a thawing process compensation method, a controller and a refrigerator. Background Art

[0002] Using the refrigerator's cold storage room to defrost food such as meat can preserve the nutrients of the food during the thawing process and is not prone to bacterial growth during the thawing process. In order to solve the problem of slow thawing speed in the cold storage room, in the related art, an electric field generating device is set in the thawing drawer of the cold storage room, which promotes the polarization of water molecules in the meat through the electric field, generates heat through friction, accelerates heat transfer, and speeds up the thawing speed of food.

[0003] After the user sets the thawing time or the thawing completion time, when the refrigerator is thawing food, if the user opens the thawing drawer, the electric field generating device will automatically stop to ensure the user's safety. At this time, the thawing process is interrupted, and the previous thawing process cannot be continued until the user closes the thawing drawer. This will result in insufficient thawing time or delayed thawing completion time, affecting the thawing effect or affecting the time for users to take food. Summary of the invention

[0004] The embodiments of the present application provide a thawing device, a thawing process compensation method, a controller and a refrigerator, which can ensure that the food can be thawed for a sufficient period of time or be thawed at a predetermined time point.

[0005] In a first aspect, an embodiment of the present application provides a thawing device, comprising:

[0006] A thawing drawer, wherein an upper cover is provided at an open portion of the thawing drawer;

[0007] An electric field generating device, disposed on the upper cover plate, for generating an electric field toward the interior of the thawing drawer;

[0008] An air supply device; arranged on the upper cover plate, for supplying air to the interior of the thawing drawer;

[0009] The controller is used to start the air supply device and the electric field generating device to defrost the food in response to a thawing instruction, and is also used to record a first duration of the air supply device stopping and a second duration of the electric field generating device stopping during the thawing process, and to increase the air supply speed of the air supply device and / or the electric field strength of the electric field generated by the electric field generating device according to the first duration and the second duration.

[0010] In some embodiments, the electric field generating device includes a plurality of electrodes and a power source for supplying power to the electrodes, and the electrodes are arranged around the air supply device.

[0011] In some embodiments, the bottom of the thawing drawer includes a metal plate for heat transfer.

[0012] In a second aspect, an embodiment of the present application provides a thawing process compensation method, which is applied to the thawing device of the first aspect embodiment, and the thawing process compensation method includes:

[0013] In response to a thawing instruction, starting the air supply device and the electric field generating device to thaw the food;

[0014] During the thawing process, recording a first duration of stopping the air supply device, and recording a second duration of stopping the electric field generating device;

[0015] The air supply speed of the air supply device and / or the electric field strength of the electric field generated by the electric field generating device are increased according to the first time length and the second time length.

[0016] In some embodiments, the step of starting the air supply device and the electric field generating device to defrost the food includes:

[0017] Starting the air supply device and recording the thawing time of the thawing process;

[0018] When the thawing time reaches a time threshold, starting the electric field generating device;

[0019] The time threshold is a preset value or is determined according to a set time, and the time threshold is less than the set time. The set time is set by a user or is determined according to the type and / or weight of the food in the thawing drawer.

[0020] In some embodiments, the thawing device is located in the refrigerator; and recording the first duration of stopping the air supply device comprises:

[0021] Controlling the air supply device to operate at a first wind speed;

[0022] When it is detected that the refrigerator door of the refrigerator is opened, the air supply device is stopped, and a first duration of the air supply device being stopped is recorded;

[0023] The recording of the second duration of the electric field generating device stopping comprises:

[0024] Controlling the operation of the electric field generating device with a first voltage;

[0025] When it is detected that the thawing drawer is opened, the electric field generating device is stopped, and a second duration of the stopping of the electric field generating device is recorded.

[0026] In some embodiments, increasing the air supply speed of the air supply device and / or the electric field strength of the electric field generated by the electric field generating device according to the first duration and the second duration includes:

[0027] When it is detected that the refrigerator door and the thawing drawer are both closed, the air supply device is started according to a third time length and a second wind speed, the second wind speed is greater than the first wind speed, and / or the electric field generating device is started according to a fourth time length and a second voltage, the second voltage is greater than the first voltage;

[0028] The third duration is determined based on the first duration, and the fourth duration is determined based on the second duration.

[0029] In some embodiments, the third duration is equal to the first duration, and the fourth duration is equal to the second duration.

[0030] In a third aspect, an embodiment of the present application provides a controller comprising at least one processor and a memory for communicating with the at least one processor; the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the thawing process compensation method as described in the embodiment of the second aspect.

[0031] In a fourth aspect, an embodiment of the present application provides a refrigerator, comprising the thawing device of the embodiment of the first aspect or the controller of the embodiment of the third aspect.

[0032] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the thawing process compensation method as described in the second aspect.

[0033] The thawing device, thawing process compensation method, controller and refrigerator of the embodiment of the present application have at least the following beneficial effects: during the thawing process, the electric field generating device and the air supply device are started. The thawing process is accelerated by using an electric field of a certain intensity and increasing the air flow level in the thawing drawer. If the electric field generating device and / or the air supply device are suspended for a period of time during the thawing process, after the electric field generating device and the air supply device resume operation, the electric field intensity of the electric field generating device is increased and the air supply speed of the air supply device is increased, so as to further accelerate the thawing process, thereby compensating for the thawing time delayed by the suspension of the electric field generating device and / or the air supply device, so as to ensure that the food has enough thawing time or is thawed at a predetermined time point. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of the structure of the thawing device provided in an embodiment of the present application;

[0035] Figure 2 It is an overall flow chart of the thawing process compensation method provided in the embodiment of the present application;

[0036] Figure 3 is a flow chart of starting the air supply device and the electric field generating device provided in the embodiment of the present application;

[0037] Figure 4 is a flow chart for recording the first duration of stopping the air supply device provided in an embodiment of the present application;

[0038] Figure 5 is a flow chart of recording the second duration of stopping the electric field generating device provided in an embodiment of the present application;

[0039] Figure 6 It is a flow chart of the compensating air supply device and the electric field generating device provided in the embodiments of the present application. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. In addition, the characteristics, operations or features described in the specification can be combined in any appropriate manner to form various implementation methods. At the same time, the steps or actions in the method description can also be replaced or adjusted in order in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the accompanying drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a necessary sequence, unless otherwise specified that a certain sequence must be followed.

[0041] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0042] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0043] In thawing equipment, an electric field generating device is often used to generate an electric field to speed up the thawing of food. After the user sets the thawing time or the thawing completion time, if the user opens the thawing drawer, the electric field generating device will automatically stop to ensure the user's safety. At this time, the thawing process is interrupted, and the previous thawing process cannot be continued until the user closes the thawing drawer. This will result in insufficient thawing time or delay the thawing completion time, affecting the thawing effect or affecting the time for the user to take the food.

[0044] Based on this, the embodiments of the present application provide a thawing device, a thawing process compensation method, a controller and a refrigerator, which can save equipment costs.

[0045] The thawing device, the thawing process compensation method, the controller and the refrigerator are described below in conjunction with the accompanying drawings:

[0046] Reference Figure 1 As shown, a thawing device provided in an embodiment of the present application includes:

[0047] A thawing drawer, wherein an upper cover plate 100 is provided at an open portion of the thawing drawer;

[0048] An electric field generating device, disposed on the upper cover plate 100, for generating an electric field inside the thawing drawer;

[0049] The air supply device 300 is arranged on the upper cover plate 100 and is used to supply air to the inside of the thawing drawer;

[0050] The controller is used to start the air supply device 300 and the electric field generating device to defrost the food in response to a thawing instruction. It is also used to record the first duration of the stoppage of the air supply device 300 and the second duration of the stoppage of the electric field generating device during the thawing process, and to increase the air supply speed of the air supply device 300 and / or the electric field strength of the electric field generated by the electric field generating device according to the first duration and the second duration.

[0051] The thawing drawer has a certain volume for placing the food to be thawed. The upper cover plate 100 of the thawing drawer is provided with an electric field generating device and an air supply device 300. The electric field generating device is used to generate an electric field to the inside of the thawing drawer. It can be understood that the electric field generating device releases high-energy particles to exchange heat with the food by generating an electric field. At the same time, the electric field promotes the polarization of water molecules in the food placed in the thawing drawer, which can accelerate the thawing process of the food. The electric field generated by the electric field generating device in this embodiment is a high-voltage electric field, which can destroy the hydrogen bonds of the ice layer inside the food, so that the inside and outside of the food can be thawed at the same time. At the same time, the high-voltage electric field can release high-speed moving high-energy particles. By hitting the surface of the food with high-energy particles, the movement of water molecules on the surface of the food can be accelerated, thereby accelerating the thawing of the food. The air supply device 300 accelerates the convection rate inside the thawing drawer and accelerates the thawing process of the food by supplying air to the inside of the thawing drawer. The thawing instruction includes the thawing time required for completing the thawing of the food set by the user. The controller can determine the first wind speed of the air supply device 300 and the first voltage of the electric field generating device based on the thawing time in response to the thawing instruction, and control the air supply device 300 to operate at the first wind speed and control the electric field generating device to operate at the first voltage. During the thawing process, when the refrigerator door and / or the thawing drawer are opened, the air supply device 300 and the electric field generating device will stop working in sequence, and the wind speed of the air supply device 300 and / or the electric field strength of the electric field generated by the electric field generating device are increased according to the first time and the second time, so that the time of the air supply device 300 and / or the electric field generating device being stopped due to the opening of the refrigerator door and / or the thawing drawer door can be compensated, so as to ensure that the food is thawed according to the time set by the user.

[0052] The air supply device 300 of the embodiment of the present application can be arranged at the central position of the upper cover plate 100, and the air supply device 300 can be an axial flow fan; the electric field generating device includes at least one electrode 400, and the electrode 400 can be a plurality of strip electrodes 400 arranged around the air supply device 300, or an arc electrode 400 arranged around the air supply device 300, and the electric field generating device also includes at least one power supply 200, and the power supply 200 can be an independently arranged high-voltage power supply dedicated to supplying power to the electrode 400. The controller can control the output power of the high-voltage power supply 200, thereby controlling whether the power supply 200 supplies power to the electrode 400, or at least one switch device is arranged between the high-voltage power supply 200 and the electrode 400, and the controller is used to control the switch device to be turned on or off, and after the switch device is turned on, the high-voltage power supply 200 outputs a high-voltage current to the electrode 400. When the electrode 400 is energized, an electric field is formed that propagates toward the inside of the thawing drawer. In this way, the hydrogen bonds that play a key role in the ice layer of the food can be destroyed by the high-voltage electric field, and the ice layer structure can be decomposed into a small molecular cluster structure. At the same time, the high-voltage electric field can also ionize high-speed moving high-energy particles. By having the high-energy particles hit the surface of the food, the movement of water molecules on the surface of the food can be accelerated, thereby accelerating the thawing of the food. In addition, the high-voltage electric field can also promote the free water in the food to combine with the amino acid residues in the meat protein to form a compact moisture, which can reduce the drying of the food surface and the loss of water caused by the thawing of the air supply device 300, thereby retaining the nutrition of the food while thawing.

[0053] The bottom of the thawing drawer of the embodiment of the present application includes a metal plate for heat transfer, and the metal plate can be located at the center of the bottom of the thawing drawer, or the bottom of the thawing drawer is completely composed of the metal plate. It is understandable that the metal plate has good heat conduction properties. By conducting a part of the cold in the thawing drawer to the outside of the thawing drawer through the metal plate, the heat exchange between the inside of the drawer and the outside space can be quickly completed, and the process of thawing the food can be accelerated. The metal plate can also be a fin plate, the flat side of the fin plate faces the inside of the thawing drawer, and the side provided with fins faces the outside of the thawing drawer. By providing multiple fins, the contact area between the metal plate and the external environment of the thawing drawer is increased, which can further accelerate the process of heat exchange inside and outside the thawing drawer and accelerate the thawing of the food.

[0054] Reference Figure 2 As shown, a thawing process compensation method provided in an embodiment of the present application is applied to the above-mentioned thawing device, and the thawing process compensation method includes but is not limited to the following steps:

[0055] Step S100, in response to the thawing instruction, the air supply device 300 and the electric field generating device are started to thaw the food;

[0056] Step S200, during the thawing process, recording a first duration of stopping the air supply device 300 and recording a second duration of stopping the electric field generating device;

[0057] Step S300: increasing the air supply speed of the air supply device 300 and / or the electric field strength of the electric field generated by the electric field generating device according to the first time length and the second time length.

[0058] The thawing instruction includes the thawing time required for the food to be thawed set by the user. The controller can determine the first wind speed when the air supply device 300 is in operation and the first voltage when the electric field generating device is in operation based on the thawing time in response to the thawing instruction, and control the air supply device 300 to operate at the first wind speed and control the electric field generating device to operate at the first voltage. During the thawing process, when the refrigerator door and / or the thawing drawer are opened, the air supply device 300 and the electric field generating device will stop working. At this time, the first duration of the air supply device 300 stopping working and the second duration of the electric field generating device stopping working are recorded. The wind speed of the air supply device 300 and / or the electric field strength of the electric field generated by the electric field generating device are increased according to the first duration and the second duration. In this way, the duration of the air supply device 300 and / or the electric field generating device stopping working due to the opening of the refrigerator door and / or the thawing drawer door can be compensated, so as to ensure that the food is thawed according to the time set by the user.

[0059] Reference Figure 3 As shown, in some embodiments, step S100 includes but is not limited to the following steps:

[0060] Step S110, starting the air supply device 300 and recording the thawing time of the thawing process;

[0061] Step S120, when the thawing time reaches the time threshold, the electric field generating device is started;

[0062] Among them, the time threshold is a preset value or is determined according to a set time, and the time threshold is less than the set time. The set time is set by the user or is determined according to the type and / or weight of the food in the thawing drawer.

[0063] In this embodiment, when the food is just being thawed, the surface of the food is still in a frozen state. At this time, only using the air supply device 300 to thaw the food will not cause the surface of the food to be dried out and the food to lose moisture. At this time, using the air supply device 300 alone to thaw the food can accelerate the heat convection inside the thawing drawer through the air supply device 300, so that the frozen food and the ambient air can quickly exchange heat, thereby accelerating the thawing of the food. When the thawing time of the thawing process reaches the time threshold, that is, when the food is thawed to a certain extent, using the air supply device 300 alone cannot effectively The inside of the food is thawed, and the surface of the food may be dried out. At this time, the electric field generating device is started again to generate a high-voltage alternating electric field. The hydrogen bonds of the ice crystals inside the food are interrupted by the periodically changing electric field, which promotes the polarization of water molecules and generates heat through friction. The thawing of the inside of the food is accelerated, and the inside and surface of the food are thawed at the same time. At the same time, the high-voltage alternating electric field generated by the electric field generating device can promote the combination of free water and amino acid residues in meat protein, reduce the drying of the food surface and water loss caused by the thawing of the air supply device 300, and retain the nutrition of the food.

[0064] In this embodiment, the duration threshold is determined according to the set duration. Specifically, the duration threshold may be proportional to the set duration. For example, if the set duration is T, the duration threshold is 2 / 3T. Of course, the duration threshold may also be the set duration minus a fixed duration value for controlling the operation of the electric field generating device. For example, if the operation duration of the electric field generating device is t, the duration threshold is Tt. Specifically, a timing module may be used to time the thawing duration of the thawing process. The set time can be set by the user or determined according to the type and / or weight of the ingredients in the thawing drawer. Specifically, a touch screen can be set on the refrigerator door or other location of the refrigerator to allow the user to set the set time, or multiple set time lengths can be set in advance according to the type of ingredients, and the user selects the set time length through the touch screen on the refrigerator door. The set time length for selection can be set based on the type of ingredients and / or the weight of the ingredients, that is, different set time lengths are provided for the user as a reference for ingredients of different types and weights, and the user selects a set time length from them according to the type and weight of the ingredients. Alternatively, the user can select the type of ingredient on the touch screen of the refrigerator door, and a weighing sensor can be set at the bottom of the thawing drawer to weigh the weight of the ingredients to be thawed. Finally, the set time length is determined according to the type of ingredient selected by the user and the weighing result.

[0065] In an embodiment of the present application, in response to a thawing instruction, the air supply device 300 is first used to accelerate the heat convection inside the thawing drawer, so that the frozen food and the air quickly exchange heat, thereby accelerating the thawing of the food. At the same time, the thawing time of the air supply device 300 is recorded. When the running time of the air supply device 300 reaches a time threshold, the electric field generating device is started to form a high-voltage alternating electric field inside the thawing drawer, so that the inside and outside of the food are thawed simultaneously, and at the same time, free water is promoted to combine with amino acid residues in the food, thereby reducing the drying of the food surface and the loss of water caused by the thawing of the air supply device 300, so that the food in the thawing drawer is evenly thawed while retaining the nutrition of the food.

[0066] It is understandable that the air supply device 300 will accelerate the air convection rate inside the refrigerator and will generate a certain amount of noise when working. If the air supply device 300 is started when the refrigerator door and / or the thawing drawer are not closed, the cold air of the entire refrigerator may be lost rapidly, and a certain amount of noise pollution may be easily generated. Based on this, before starting the air supply device 300 and the electric field generating device, it is necessary to detect whether the refrigerator door and the thawing drawer are closed. If the thawing drawer and / or the refrigerator door are not closed, the air supply device 300 will not be started temporarily, and a prompt message will be output to remind the user to close the thawing drawer and / or the refrigerator door. The prompt message may be a voice message, a light message, or a text message on the display screen of the refrigerator door until it is detected that the refrigerator door and the thawing drawer are both closed, and then the air supply device 300 will be started to run at the set wind speed.

[0067] Reference Figure 4 As shown, in some embodiments, the thawing device is located in the refrigerator, and the first duration of stopping the air supply device 300 in the above step S200 includes:

[0068] Step S210, controlling the air supply device 300 to operate at a first wind speed;

[0069] Step S220, when it is detected that the refrigerator door is opened, the air supply device 300 is stopped, and a first duration of the air supply device 300 being stopped is recorded;

[0070] The first wind speed may be determined according to the set time. For example, when the controller presets multiple gear setting time for the user to choose, the corresponding first wind speed may be set for each different gear setting time. Alternatively, the setting time is set by the user, and the corresponding first wind speed may be calculated according to the setting time through a certain algorithm. The first wind speed refers to the rotation speed of the axial flow fan. By controlling the magnitude of the first wind speed, the heat convection rate inside the thawing drawer may be adjusted, thereby controlling the thawing rate.

[0071] When it is detected that the refrigerator door of the refrigerator is opened, at this time, continuing to run the air supply device 300 may cause a large noise on the one hand, and on the other hand, it may cause the cold air in the refrigerator to be lost quickly, affecting the overall refrigeration performance of the refrigerator. At this time, the air supply device 300 needs to be stopped. Since the air supply device 300 stops running, the thawing process is also suspended. At this time, a timing module can be used to record the first duration of the air supply device 300 stopping. It can be understood that the time when the air supply device 300 stops can be synchronized with the time when the refrigerator door is opened, and the time when the air supply device 300 restarts can also be synchronized with the time when the refrigerator door is closed. Therefore, the length of time when the refrigerator door is opened can be recorded as the first length of time when the air supply device 300 stops. Specifically, a door sensor is provided between the contact position of the refrigerator door and the refrigerator body frame. After the thawing process starts, the controller can judge the opening and closing state of the refrigerator door by reading the state of the door sensor. When the refrigerator door is opened, the timer is controlled to start timing, and when the refrigerator door is closed, the timer stops timing, so that the first length of time when the air supply device 300 stops running is obtained. It is understandable that during the thawing process, the user may open the refrigerator door multiple times. At this time, the first time durations of opening the refrigerator door multiple times can be accumulated. Specifically, the timer will not be reset after the refrigerator door is closed, but will continue to count from the first time duration of the last timing after the refrigerator door is opened next time. When the accumulated first time duration exceeds the preset threshold, or the difference between the accumulated first time duration and the time remaining to the set time duration is less than the preset threshold, the air supply device is controlled to operate with the accumulated first time duration and the second wind speed. In this way, there is no need to change the air supply speed of the air supply device multiple times, so that the air supply device can operate at a relatively stable air supply speed.

[0072] Reference Figure 5 As shown, in step S200, recording the second duration of stopping the electric field generating device includes:

[0073] Step S230, controlling the electric field generating device to operate with a first voltage;

[0074] Step S240, when it is detected that the thawing drawer is opened, the electric field generating device is stopped, and a second duration of the stopping of the electric field generating device is recorded.

[0075] The first voltage may be determined according to the set duration. For example, when the controller presets multiple gear setting durations for the user to select, the corresponding first voltage may be set for each different gear setting duration. Alternatively, the setting duration is set by the user, and the corresponding first voltage may be calculated according to the setting duration through a certain algorithm. The first voltage is the voltage output by the high-voltage power supply 200 to the electrode 400. By controlling the first voltage, the magnitude of the electric field strength generated by the electric field generating device may be controlled.

[0076] When it is detected that the thawing drawer is opened, at this time, continuing to run the electric field generating device to generate a high-voltage electric field may cause certain damage to the user. At this time, the electric field generating device needs to be stopped, and because the electric field generating device stops running, the process of electric field thawing is also suspended, and a timing module needs to be used to record the second time length of the electric field generating device stopping running. Specifically, the electric field generating device is directly controlled by the controller to start the high-voltage power supply 200, and the timing can be started when the controller issues an instruction to stop the electric field generating device, and the timing can be ended when the controller issues an instruction to restart the electric field generating device, so that the second time length of the electric field generating device stopping can be recorded, or, because the time when the electric field generating device stops running and the time when the thawing drawer is opened are synchronized, and the time when the electric field generating device is restarted and the time when the thawing drawer is closed are also synchronized, the timing can be started when the thawing drawer is opened, and the timing can be ended when the thawing drawer is closed to obtain the second time length. It can be understood that the electric field generating device is started only after the thawing time reaches the time length threshold. When the thawing time does not reach the time length threshold, that is, the electric field generating device is not started, it is not necessary to record the corresponding second time length when the thawing drawer is detected to be opened. It is understandable that during the thawing process, the user may open the thawing drawer multiple times. At this time, the second time durations of multiple openings of the thawing drawer can be accumulated. Specifically, the timer will not be reset after the thawing drawer is closed, but will continue to time from the second time duration of the last timing after the thawing drawer is opened next time. When the accumulated second time duration exceeds the preset threshold, or the difference between the accumulated second time duration and the time remaining to the set time duration is less than the preset threshold, the electric field generating device is controlled to operate with the accumulated second time duration and the second voltage. In this way, there is no need to change the working voltage of the electric field generating device multiple times, so that the electric field generating device can operate in a relatively stable working condition.

[0077] Reference Figure 6 As shown, in some embodiments, increasing the air supply speed of the air supply device 300 and / or the electric field strength of the electric field generated by the electric field generating device according to the first duration and the second duration includes:

[0078] Step S310, when it is detected that both the refrigerator door and the thawing drawer are closed, the air supply device 300 is started according to the third time length and the second wind speed, the second wind speed is greater than the first wind speed, and / or the electric field generating device is started according to the fourth time length and the second voltage, the second voltage is greater than the first voltage;

[0079] The third duration is determined based on the first duration, and the fourth duration is determined based on the second duration.

[0080] When it is detected that both the refrigerator door and the thawing drawer are closed, at this time, since the user opened the refrigerator door and / or the thawing drawer during the thawing process, the air supply device 300 and / or the electric field generating device stopped working. In order to ensure that the food is thawed before the set time, the air supply device 300 and / or the electric field generating device needs to be compensated for power. Specifically, the wind speed of the air supply device 300 is increased from the first wind speed to the second wind speed for the third time to compensate for the first time when the refrigerator door was opened and the air supply device 300 stopped running, so that the total air volume of the air supply device 300 after compensation within the set time is consistent with the total air volume when it is not suspended. Specifically, taking the third time of compensating the air supply device 300 as equal to the first time when the air supply device 300 stopped running as an example, the calculation process of the second wind speed is as follows:

[0081] The total air output of the air supply device 300 when it is not suspended within the set time is:

[0082]

[0083] Among them, Q 1 The total air volume of the air supply device 300 when it is not suspended within the set time, ρ is the air density, which is 1.29 kg / m3, T 1 represents the set time, s is the cross-sectional area of ​​the air outlet of the air supply device 300, V 1 It is the first wind speed.

[0084] The total air volume of the air supply device 300 after being paused and compensated within the set time is:

[0085]

[0086] Among them, Q 2 is the total air volume of the air supply device 300 after being suspended for a set period of time and then compensated, ρ is the air density, which is 1.29 kg / m3, T 1 is the set duration, t 1 is the first duration of the air supply device 300 suspending operation, and is also the third duration of the air supply device 300 operating at the second wind speed, V 1 is the first wind speed, V 2 is the second wind speed, and s is the cross-sectional area of ​​the air outlet of the air supply device 300.

[0087] Let Q 2 =Q 1 , then

[0088]

[0089] From the above formula, we can get:

[0090] Taking the fourth time length of the compensation electric field generating device being equal to the second time length of the electric field generating device stopping operation as an example, the calculation process of the second voltage is as follows:

[0091] The total electric flux of the electric field generating device when it is not suspended within the set time is:

[0092] Q 3 =σ*E 1 2 *A*T 2

[0093] Among them, Q 3 is the total electric flux of the electric field generating device when it is not suspended within the set time; σ is the dielectric constant; E 1 is the electric field strength of the electric field generated by the electric field generating device when operating at the first voltage, A is the area of ​​the electrode 400, T 2 It is the working time of the electric field generating device when it is not stopped, that is, the difference between the set time and the time threshold.

[0094] The total electric flux after the electric field generating device is paused and compensated within the set time is

[0095] Q 4 =σ*E 1 2 *A*(T 2 -2t 2 )+σ*E 2 2 *A*t 2

[0096] Among them, Q 4 is the total electric flux after the electric field generating device is paused and compensated within the set time; σ is the dielectric constant; E 1 is the electric field strength of the electric field generated by the electric field generating device when operating at the first voltage; E 2 is the electric field strength of the electric field generated when the electric field generating device operates at the second voltage; T 2 is the working time of the electric field generating device when it is not stopped, that is, the difference between the set time and the time threshold; t 2 It is the second time duration, and also the fourth time duration during which the electric field generating device operates at the second voltage.

[0097] Let Q 3 =Q 4 , then σ*E 1 2 *A*T 2 =σ*E 1 2 *A*(T 2 -2t 2 )+σ*E 22 *A*t 2

[0098] From the above formula, we can get: Since the electric field generating device is compensated by increasing the working voltage in the present application, the relative position between the electrode 400 and the food does not change, then according to E=U / d, it can be obtained that: Among them U 2 is the second voltage, U 1 is the first voltage.

[0099] In some feasible embodiments, the third duration and the first duration may be in a certain proportion instead of being equal, for example, the third duration may be twice the first duration; the fourth duration and the second duration may also be in a certain proportion instead of being equal, for example, the fourth duration may be twice the second duration. In this case, the calculation method of the second wind speed and the second voltage may refer to the above embodiment, and the third duration and the fourth duration may be replaced by the first duration and the second duration in corresponding proportions and substituted into the above calculation process.

[0100] In an embodiment of the present application, after closing the refrigerator door and the thawing drawer, and restarting the air supply device and / or the electric field generating device, the air supply device can be immediately controlled to operate according to the third duration and the second wind speed, and / or the electric field generating device can be controlled to operate according to the second voltage and the fourth duration. This can immediately compensate for the time when the air supply device and the electric field generating device stop working, thereby avoiding insufficient remaining time later. It is understandable that the user may open and close the refrigerator door and / or the thawing drawer multiple times during the thawing process. At this time, the first time duration of multiple openings of the refrigerator door can be accumulated, and the second time duration of multiple openings of the thawing drawer can be accumulated, until the accumulated first time duration and / or second time duration reaches the preset time threshold, and then the air supply device is controlled to operate at the second wind speed and third time duration, and / or the electric field generating device is controlled to operate at the second voltage and fourth time duration; or, after the difference between the time remaining to reach the set time duration and the accumulated first time duration and / or the accumulated second time duration is less than the preset time threshold, the air supply device is controlled to operate at the second wind speed and third time duration, and / or the electric field generating device is controlled to operate at the second voltage and fourth time duration. This can avoid multiple changes in the operating conditions of the air supply device and / or the electric field generating device and maintain stable operation of the air supply device and / or the electric field generating device.

[0101] An embodiment of the present application also provides a controller, comprising at least one processor and a memory for communicating with the at least one processor; the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the thawing process compensation method as described in the above embodiment.

[0102] An embodiment of the present application also provides a refrigerator, comprising the thawing device or controller of the above embodiment.

[0103] It will be appreciated by those skilled in the art that all or some of the steps and systems in the disclosed method above may be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or may be implemented as hardware, or may be implemented as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or a non-transitory medium) and a communication medium (or a temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that may be used to store desired information and may be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0104] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above-mentioned implementation mode. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the present application. These equivalent deformations or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. Defrosting device, It is characterized in that include: A thawing drawer, wherein an upper cover is provided at an open portion of the thawing drawer; An electric field generating device, disposed on the upper cover plate, for generating an electric field toward the interior of the thawing drawer; Air supply device; is arranged on the upper cover plate and is used to supply air to the interior of the thawing drawer; The controller is used to start the air supply device and the electric field generating device to defrost the food in response to a thawing instruction, and is also used to record a first duration of the air supply device stopping and a second duration of the electric field generating device stopping during the thawing process, and to increase the air supply speed of the air supply device and / or the electric field strength of the electric field generated by the electric field generating device according to the first duration and the second duration.

2. The thawing device according to claim 1, It is characterized in that The electric field generating device includes a plurality of electrodes and a power source for supplying power to the electrodes, and the electrodes are arranged around the air supply device.

3. The thawing device according to claim 1, It is characterized in that The bottom of the thawing drawer includes a metal plate for heat transfer.

4. Thawing process compensation method, It is characterized in that Applicable to the thawing device according to any one of claims 1 to 3, the thawing process compensation method comprises: In response to a thawing instruction, starting the air supply device and the electric field generating device to thaw the food; During the thawing process, recording a first duration of stopping the air supply device, and recording a second duration of stopping the electric field generating device; The air supply speed of the air supply device and / or the electric field strength of the electric field generated by the electric field generating device are increased according to the first time length and the second time length.

5. The thawing process compensation method according to claim 4, It is characterized in that The step of starting the air supply device and the electric field generating device to defrost the food includes: Starting the air supply device and recording the thawing time of the thawing process; When the thawing time reaches a time threshold, starting the electric field generating device; The time threshold is a preset value or is determined according to a set time, and the time threshold is less than the set time. The set time is set by a user or is determined according to the type and / or weight of the food in the thawing drawer.

6. The thawing process compensation method according to claim 4, It is characterized in that The thawing device is located in the refrigerator; and the recording of the first duration of the air supply device stopping includes: Controlling the air supply device to operate at a first wind speed; When it is detected that the refrigerator door of the refrigerator is opened, the air supply device is stopped, and a first duration of the air supply device being stopped is recorded; The recording of the second duration of the electric field generating device stopping comprises: Controlling the operation of the electric field generating device with a first voltage; When it is detected that the thawing drawer is opened, the electric field generating device is stopped, and a second duration of the stopping of the electric field generating device is recorded.

7. The thawing process compensation method according to claim 6, It is characterized in that The increasing the air supply speed of the air supply device and / or the electric field strength of the electric field generated by the electric field generating device according to the first time length and the second time length includes: When it is detected that the refrigerator door and the thawing drawer are both closed, the air supply device is started according to a third time length and a second wind speed, the second wind speed is greater than the first wind speed, and / or the electric field generating device is started according to a fourth time length and a second voltage, the second voltage is greater than the first voltage; The third duration is determined based on the first duration, and the fourth duration is determined based on the second duration.

8. The thawing process compensation method according to claim 7, It is characterized in that The third duration is equal to the first duration, and the fourth duration is equal to the second duration.

9. Controller, It is characterized in that It comprises at least one processor and a memory for communicating with the at least one processor; the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the thawing process compensation method as described in any one of claims 4 to 8.

10. Refrigerator, It is characterized in that It comprises the thawing device according to any one of claims 1 to 3 or the controller according to claim 9.

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