Food material unfreezing method of refrigerator, operation control device, refrigerator and storage medium

Abstract

The invention discloses a food material unfreezing method of a refrigerator, an operation control device, the refrigerator and a computer readable storage medium. The refrigerator comprises an unfreezing chamber, a plate-type electrode arranged at the bottom of the unfreezing chamber and used for placing food materials, and a needle-type electrode arranged on the upper portion of the unfreezing chamber. The lifting driving device is arranged in the thawing chamber and used for driving the needle type electrode to move up and down; the ultrasonic detector is arranged on the needle type electrode and used for measuring a first distance between the needle type electrode and a food material. The method comprises the following steps: acquiring a target distance value or a target distance range for thawing the food material; a lifting driving device is controlled to drive the needle type electrode to descend, so that the first distance is equal to the target distance value or falls into the target distance range; and controlling the plate-type electrode and the needle-type electrode to work so as to unfreeze the food materials. The distance between the electrode plate and the food material can be accurately controlled, and a good food material thawing effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a method for thawing food in a refrigerator, an operation control device, a refrigerator, and a computer-readable storage medium. Background Art

[0002] As the demand for fresh meat products grows, users are stockpiling and purchasing more and more common. According to a survey, 64.89% of consumers are "stockpiling" when buying fresh meat and seafood. Users usually store the stockpiled meat and seafood products in the freezer of the refrigerator, and use the frozen environment to inhibit the reproduction of microorganisms and biochemical reactions to extend the shelf life of the meat. Correspondingly, thawing becomes an important step before meat processing or cooking. However, in the prior art, air thawing, running water or thawing usually leads to long thawing time, easy microbial growth, and nutrient loss; the thawing speed of micro-frozen thawing is fast, but it is uncontrollable, and irregular ingredients are prone to overheating and ripening, resulting in a decrease in taste. Therefore, there is an urgent need for a safe, uniformly thawed refrigerator with such a thawing device.

[0003] In recent years, high-voltage electric field thawing has gradually attracted attention due to its advantages such as fast thawing effect, less nutrient loss, inhibition of microbial growth during thawing, and low energy consumption. The thawing effect of food is strongly related to the distance between electrodes. If the distance is too close, it is easy to discharge and produce a large amount of ozone, causing safety problems such as food oxidation and drawer aging. If the distance is too far, the field strength is small and the thawing effect is poor. Therefore, how to ensure a good thawing effect of food has become an important issue that needs to be solved. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a method for thawing food in a refrigerator, an operation control device, a refrigerator and a computer-readable storage medium, which can accurately control the distance between the electrode plate and the food to achieve a good food thawing effect.

[0005] In a first aspect, an embodiment of the present invention provides a method for thawing food in a refrigerator, the refrigerator comprising a thawing chamber, a plate electrode disposed at the bottom of the thawing chamber and used to place food, a needle electrode disposed at the upper part of the thawing chamber, a lifting drive device disposed inside the thawing chamber and used to drive the needle electrode to move up and down, and an ultrasonic detector disposed at the needle electrode and used to measure a first distance between the needle electrode and the food, the method comprising:

[0006] Obtaining a target distance value or a target distance range for thawing food;

[0007] Controlling the lifting drive device to drive the needle electrode to descend so that the first distance is equal to the target distance value or the first distance falls within the target distance range;

[0008] The plate-type electrode and the needle-type electrode are controlled to work so as to thaw the food.

[0009] The food thawing method of the refrigerator provided by the embodiment of the present invention has at least the following beneficial effects: by arranging the plate electrode and the needle electrode at the bottom and the top of the thawing chamber respectively, an electric field can be generated between the plate electrode and the needle electrode when power is turned on, so that the food placed on the plate electrode can be thawed; a lifting drive device is also provided to drive the needle electrode to move up and down, and an ultrasonic detector is provided to measure the first distance between the needle electrode and the food, so that the spacing between the food and the needle electrode can be adjusted according to the different food, and a suitable electric field is generated to thaw the food; after the food is placed on the plate electrode, the target distance value or the target distance range is obtained, and then the lifting drive device is controlled to drive the needle electrode to descend, and at the same time, the ultrasonic detector continuously measures the first distance between the needle electrode and the food, so that the first distance is equal to the target distance value or the first distance falls into the target distance range, so that the distance between the needle electrode and the food can be accurately controlled to avoid the actual distance from being inconsistent with the target distance, and finally the plate electrode and the needle electrode are controlled to work to thaw the food, so as to achieve a good food thawing effect.

[0010] The method for thawing food provided according to some embodiments of the present invention further includes:

[0011] Acquire food information, where the food information includes at least one of the following: food type, food weight, and food thickness;

[0012] A target distance value or a target distance range is determined according to the food information.

[0013] According to the food thawing method provided by some embodiments of the present invention, the target distance value or the target distance range is obtained by the user operating a button or inputting on a touch screen.

[0014] The method for thawing food provided according to some embodiments of the present invention further includes:

[0015] Get the target thawing time;

[0016] When the working time of the plate electrode and the needle electrode reaches the target thawing time, the plate electrode and the needle electrode are controlled to stop working.

[0017] The method for thawing food provided according to some embodiments of the present invention further includes:

[0018] When the working time of the plate electrode and the needle electrode reaches the target thawing time, a reminder signal is issued.

[0019] The method for thawing food provided according to some embodiments of the present invention further includes:

[0020] Acquire food information, where the food information includes at least one of the following: food type, food weight, and food thickness;

[0021] The target thawing time is determined according to the food information.

[0022] According to the food thawing method provided by some embodiments of the present invention, the target thawing time is obtained by the user operating a button or inputting on the touch screen.

[0023] In a second aspect, an embodiment of the present invention provides an operation control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for thawing food in a refrigerator as described in the embodiment of the first aspect above.

[0024] In a third aspect, an embodiment of the present invention provides a refrigerator, comprising a thawing chamber, a plate electrode arranged at the bottom of the thawing chamber and used for placing food, a needle electrode arranged at the upper part of the thawing chamber, a lifting drive device arranged inside the thawing chamber for driving the needle electrode to move up and down, an ultrasonic detector arranged at the needle electrode for measuring a first distance between the needle electrode and the food, and an operation control device as described in the embodiment of the second aspect above.

[0025] The refrigerator provided according to the embodiment of the present invention has at least the following beneficial effects: by arranging a plate electrode and a needle electrode at the bottom and the top of the thawing chamber respectively, an electric field can be generated between the plate electrode and the needle electrode when power is turned on, so that the food placed on the plate electrode can be thawed; a lifting drive device is also provided to drive the needle electrode to move up and down, and an ultrasonic detector is provided to measure the first distance between the needle electrode and the food, so that the spacing between the food and the needle electrode can be adjusted according to the different food, and a suitable electric field is generated to thaw the food; after the food is placed on the plate electrode, the target distance value or the target distance range is obtained, and then the lifting drive device is controlled to drive the needle electrode to descend, and at the same time, the ultrasonic detector continuously measures the first distance between the needle electrode and the food, so that the first distance is equal to the target distance value or the first distance falls into the target distance range, so that the distance between the needle electrode and the food can be accurately controlled to avoid the actual distance from being inconsistent with the target distance, and finally the plate electrode and the needle electrode are controlled to work to thaw the food, so as to achieve a good food thawing effect.

[0026] According to the refrigerator provided by some embodiments of the present invention, the needle-type electrode includes a plurality of conductive needles, and the refrigerator further includes a high-voltage power supply respectively connected to the plate-type electrode and the needle-type electrode.

[0027] According to the refrigerator provided by some embodiments of the present invention, the electric field strength generated by the plate-type electrode and the needle-type electrode during operation is greater than 2 kV / m and less than 10 kV / m.

[0028] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the method for thawing food in a refrigerator as described in the embodiment of the first aspect above.

[0029] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0031] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0032] Figure 1 is a cross-sectional view of a thawing chamber of a refrigerator provided by an embodiment of the present invention;

[0033] Figure 2 Schematic diagram of the overall structure of the thawing chamber of the refrigerator provided by an embodiment of the present invention;

[0034] Figure 3 is a flow chart of a method for thawing food in a refrigerator provided by an embodiment of the present invention;

[0035] Figure 4 is a flow chart of a method for thawing food in a refrigerator provided by another embodiment of the present invention;

[0036] Figure 5 is a flow chart of a method for thawing food in a refrigerator provided by another embodiment of the present invention;

[0037] Figure 6 is a flow chart of a method for thawing food in a refrigerator provided by yet another embodiment of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the operation control device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0039] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0040] In the description of the embodiments of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, "above", "below", "within", etc. are understood to include the number itself, "at least one" means one or more, "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. If there is a description of "first", "second", etc., 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.

[0041] It should be noted that the terms such as setting, installing, and connecting in the embodiments of the present invention should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the embodiments of the present invention in combination with the specific content of the technical solution. For example, the term "connection" can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected or indirectly connected through an intermediate medium.

[0042] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] As the demand for fresh meat products grows, users are stockpiling and purchasing more and more common. According to a survey, 64.89% of consumers are "stockpiling" when buying fresh meat and seafood. Users usually store the stockpiled meat and seafood products in the freezer of the refrigerator, and use the frozen environment to inhibit the reproduction of microorganisms and biochemical reactions to extend the shelf life of the meat. Correspondingly, thawing becomes an important step before meat processing or cooking. However, in the prior art, air thawing, running water or thawing usually leads to long thawing time, easy microbial growth, and nutrient loss; the thawing speed of micro-frozen thawing is fast, but it is uncontrollable, and irregular ingredients are prone to overheating and ripening, resulting in a decrease in taste. Therefore, there is an urgent need for a safe, uniformly thawed refrigerator with such a thawing device.

[0044] In recent years, high-voltage electric field thawing has gradually attracted attention due to its advantages such as fast thawing effect, less nutrient loss, inhibition of microbial growth during thawing, and low energy consumption. The thawing effect of food is strongly related to the distance between electrodes. If the distance is too close, it is easy to discharge and produce a large amount of ozone, causing safety problems such as food oxidation and drawer aging. If the distance is too far, the field strength is small and the thawing effect is poor. Therefore, how to ensure a good thawing effect of food has become an important issue that needs to be solved.

[0045] Based on this, the embodiment of the present invention provides a method for thawing food in a refrigerator, an operation control device, a refrigerator and a computer-readable storage medium. By respectively arranging a plate electrode 200 and a needle electrode 300 at the bottom and the top of a thawing chamber 100, an electric field can be generated between the plate electrode 200 and the needle electrode 300 when power is turned on, thereby thawing the food placed on the plate electrode 200; a lifting drive device 400 is also provided to drive the needle electrode 300 to move up and down, and an ultrasonic detector 500 is provided to measure a first distance between the needle electrode 300 and the food, so that the distance between the food and the needle electrode 300 can be adjusted according to the different food. After placing food on the plate electrode 200, the target distance value or the target distance range is obtained, and then the lifting drive device 400 is controlled to drive the needle electrode 300 to descend. At the same time, the ultrasonic detector 500 continuously measures the first distance between the needle electrode 300 and the food, so that the first distance is equal to the target distance value or the first distance falls into the target distance range, thereby being able to accurately control the distance between the needle electrode 300 and the food to avoid the actual distance being inconsistent with the target distance. Finally, the plate electrode 200 and the needle electrode 300 are controlled to work to thaw the food, thereby achieving a good food thawing effect.

[0046] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0047] Figure 1 is a cross-sectional view of a thawing chamber 100 of a refrigerator provided in an embodiment of the present invention; Figure 2 Schematic diagram of the overall structure of the thawing chamber 100 of the refrigerator provided in an embodiment of the present invention.

[0048] Reference Figure 1 and Figure 2 The refrigerator includes a thawing chamber 100, a plate electrode 200 arranged at the bottom of the thawing chamber 100 and used for placing food, a needle electrode 300 arranged at the upper part of the thawing chamber 100, a lifting drive device 400 arranged inside the thawing chamber 100 for driving the needle electrode 300 to move up and down, and an ultrasonic detector 500 arranged at the needle electrode 300 for measuring a first distance between the needle electrode 300 and the food.

[0049] It should be noted that the ultrasonic detector 500 emits an ultrasonic signal of a specific frequency. The ultrasonic signal propagates in the air and is reflected when encountering an obstacle. The first distance between the needle electrode 300 and the food is determined by receiving the reflected signal and combining it with the emitted signal.

[0050] It should also be noted that since the voltage at the needle tip of the needle electrode 300 is relatively high, discharge and sparking may easily occur when the needle tip is close to the plate electrode 200, the needle tip is close to the food, or the needle tip contacts the plate electrode 200 and water droplets on the surface of the food. Therefore, it is necessary to control the plate electrode 200 and the needle electrode 300 to be separated by a certain distance so that the food in the thawing chamber 100 can be thawed more safely.

[0051] It is understandable that the lifting drive device 400 can be implemented in a variety of different ways, for example, Figure 2 As shown, the lifting drive device 400 includes a lifting gear 410, which is fixed to the end of the needle electrode 300. The side wall of the thawing chamber 100 is provided with a slide extending in the vertical direction. The refrigerator is also provided with a rack meshing with the lifting gear 410. When the lifting gear 410 rotates, it moves up and down along the rack, thereby driving the needle electrode 300 to move up and down. It should be noted that Figure 2 This is just one example of the lifting drive device 400. The lifting drive device 400 may also be implemented in other ways, which is not limited in this application.

[0052] Reference Figure 3 The first aspect of the present invention provides a method for thawing food in a refrigerator, the method including but not limited to steps S310 to S330:

[0053] Step S310: Obtain a target distance value or a target distance range for thawing the food.

[0054] It is understandable that the target distance range can be set to 3cm to 5cm. If the first distance is too small, local discharge will cause ignition, and if the first distance is too large, the thawing effect will be poor. In addition, there are many ways to obtain the target distance value or the target distance range. For example, in the food thawing method provided in some embodiments of the present invention, the target distance value or the target distance range is obtained by the user operating a button or a touch screen input. In some more intelligent refrigerators, the target distance value or the target distance range can also be generated by the refrigerator itself according to the food information. Please refer to the introduction of the subsequent embodiments for details.

[0055] Step S320: controlling the lifting drive device 400 to drive the needle electrode 300 to descend, so that the first distance is equal to the target distance value or the first distance falls within the target distance range.

[0056] It can be understood that when the lifting drive device 400 is controlled to drive the needle electrode 300 to descend, the ultrasonic detector 500 continues to be in a working process, that is, the ultrasonic detector 500 continuously emits ultrasonic signals of a specific frequency to continuously detect and update the first distance between the needle electrode 300 and the food, thereby achieving precise control of the descending position of the needle electrode 300.

[0057] Step S330: Control the plate electrode 200 and the needle electrode 300 to work, so as to thaw the food.

[0058] According to the food thawing method of the refrigerator provided by the embodiment of the present invention, by respectively arranging the plate electrode 200 and the needle electrode 300 at the bottom and the top of the thawing chamber 100, an electric field can be generated between the plate electrode 200 and the needle electrode 300 when power is turned on, so that the food placed on the plate electrode 200 can be thawed; a lifting drive device 400 is also provided to drive the needle electrode 300 to move up and down, and an ultrasonic detector 500 is provided to measure the first distance between the needle electrode 300 and the food, so that the distance between the food and the needle electrode 300 can be adjusted according to the different food, so as to generate a suitable electric field Thaw the food; after putting the food on the plate electrode 200, obtain the target distance value or the target distance range, and then control the lifting drive device 400 to drive the needle electrode 300 to descend, and at the same time the ultrasonic detector 500 continuously measures the first distance between the needle electrode 300 and the food, so that the first distance is equal to the target distance value or the first distance falls within the target distance range, so as to accurately control the distance between the needle electrode 300 and the food to avoid the actual distance from being inconsistent with the target distance, and finally control the plate electrode 200 and the needle electrode 300 to work, so as to thaw the food and achieve a good food thawing effect.

[0059] Reference Figure 4 In the food thawing method provided in some embodiments of the present invention, before step S310, steps S410 to S420 are also included:

[0060] Step S410: Acquire food information, where the food information includes at least one of the following: food type, food weight, and food thickness;

[0061] Step S420: Determine a target distance value or a target distance range according to the food information.

[0062] In this embodiment, the refrigerator can obtain food information and determine the target distance value or target distance range based on the food information, or can pop up a target distance value or target distance range recommendation to the user based on the food information, and after the user confirms, the target distance value or target distance range is determined, so that the user does not need to master or remember a lot of information, which greatly improves the user's convenience and usage experience. In addition, there are many ways for the refrigerator to obtain food information, such as obtaining it by the user operating a button or touch screen input, obtaining it by using a sensor to measure, obtaining it by using a camera to collect photos of the food and identify it, or obtaining it by reading the wireless electronic tags of the food.

[0063] Reference Figure 5 In the food thawing method provided in some embodiments of the present invention, after step S330, steps S510 to S520 are further included:

[0064] Step S510: Obtain target thawing time.

[0065] There are many ways to obtain the target thawing time. For example, in the food thawing method provided in some embodiments of the present invention, the target thawing time is obtained by the user operating a button or inputting on a touch screen. In some more intelligent refrigerators, the target thawing time can also be generated by the refrigerator itself according to food information. For details, please refer to the introduction of the subsequent embodiments.

[0066] Step S520: When the working time of the plate electrode 200 and the needle electrode 300 reaches the target thawing time, the plate electrode 200 and the needle electrode 300 are controlled to stop working.

[0067] In this embodiment, by calculating the working time of the plate electrode 200 and the needle electrode 300, after the working time of the plate electrode 200 and the needle electrode 300 reaches the target thawing time, the plate electrode 200 and the needle electrode 300 are controlled to stop working, which can avoid excessive thawing of the food and avoid energy waste after the food is thawed.

[0068] In the food thawing method provided by some embodiments of the present invention, it also includes: when the working time of the plate electrode 200 and the needle electrode 300 reaches the target thawing time, a reminder signal is issued.

[0069] It is understandable that after the working time of the plate electrode 200 and the needle electrode 300 reaches the target thawing time, a reminder signal is issued to remind the user that the food has been thawed and the food can be taken out for cooking in time. Among them, the reminder signal issued by the refrigerator can be in various ways, such as using a buzzer to send a sound reminder signal, using an indicator light to flash or stay on to send a light reminder signal, using a display screen to display a pattern reminder signal, etc.

[0070] Reference Figure 6 In the food thawing method provided in some embodiments of the present invention, before step S510, steps S610 to S620 are also included:

[0071] Step S610: Acquire food information, where the food information includes at least one of the following: food type, food weight, and food thickness;

[0072] Step S620: Determine the target thawing time according to the food information.

[0073] Similarly, in this embodiment, the refrigerator can obtain food information and determine the target thawing time based on the food information, or it can pop up a recommended option of the target thawing time to the user based on the food information, and then determine the target thawing time after the user confirms it, so that the user does not need to master or remember more information, which greatly improves the user's convenience and usage experience.

[0074] Reference Figure 7 The second aspect of the present invention provides an operation control device 700, including a memory 710, a processor 720, and a computer program stored in the memory 710 and executable on the processor 720. The processor 720 executes the program to implement the food thawing method of the refrigerator in the first aspect of the present invention, for example, to execute Figure 3 Steps S310 to S330 of the method, Figure 4 Steps S410 to S420 of the method, Figure 5 Steps S510 to S520 of the method or Figure 6 Method steps S610 to S620.

[0075] In addition, a third aspect embodiment of the present invention provides a refrigerator, comprising a thawing chamber 100, a plate electrode 200 arranged at the bottom of the thawing chamber 100 and used for placing food, a needle electrode 300 arranged at the upper part of the thawing chamber 100, a lifting drive device 400 arranged inside the thawing chamber 100 for driving the needle electrode 300 to move up and down, an ultrasonic detector 500 arranged at the needle electrode 300 for measuring a first distance between the needle electrode 300 and the food, and an operation control device 700 as described above in the second aspect embodiment.

[0076] According to the refrigerator provided by the embodiment of the present invention, by respectively arranging the plate electrode 200 and the needle electrode 300 at the bottom and the top of the thawing chamber 100, an electric field can be generated between the plate electrode 200 and the needle electrode 300 when power is turned on, so as to thaw the food placed on the plate electrode 200; a lifting drive device 400 is also provided to drive the needle electrode 300 to move up and down, and an ultrasonic detector 500 is provided to measure the first distance between the needle electrode 300 and the food, so that the distance between the food and the needle electrode 300 can be adjusted according to the different food, so as to generate a suitable electric field to thaw the food. thawing; after putting the food on the plate electrode 200, by obtaining the target distance value or the target distance range, the lifting drive device 400 is controlled to drive the needle electrode 300 to descend, and at the same time the ultrasonic detector 500 continuously measures the first distance between the needle electrode 300 and the food, so that the first distance is equal to the target distance value or the first distance falls within the target distance range, thereby being able to accurately control the distance between the needle electrode 300 and the food to avoid the actual distance being inconsistent with the target distance, and finally the plate electrode 200 and the needle electrode 300 are controlled to work to thaw the food, thereby achieving a good food thawing effect.

[0077] Reference Figure 1 In the refrigerator provided by some embodiments of the present invention, the needle electrode 300 includes a plurality of conductive needles 310, and the refrigerator further includes a high-voltage power supply 600 connected to the plate electrode 200 and the needle electrode 300 respectively.

[0078] The type of the high voltage power supply 600 may be a direct current power supply or an alternating current power supply. When the high voltage power supply 600 is an alternating current power supply, the frequency of the alternating current power supply is greater than or equal to 50 Hz and not higher than 30 kHz.

[0079] Reference Figure 1 In the refrigerator provided by some embodiments of the present invention, the electric field strength generated by the plate electrode 200 and the needle electrode 300 during operation is greater than 2 kV / m and less than 10 kV / m.

[0080] It can be understood that when the electric field strength generated by the plate electrode 200 and the needle electrode 300 is between 2 kV / m and 10 kV / m, it can have a better electric field thawing effect on food.

[0081] In addition, a fourth aspect of the present invention provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the method for thawing food in a refrigerator according to the first aspect of the present invention, for example, to execute Figure 3 Steps S310 to S330 of the method, Figure 4 Steps S410 to S420 of the method, Figure 5Steps S510 to S520 of the method or Figure 6 Method steps S610 to S620.

[0082] It will be appreciated by those skilled in the art that all or some of the steps and systems in the disclosed methods 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 implemented as hardware, or 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 disk 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.

[0083] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A method for thawing food in a refrigerator, It is characterized in that The refrigerator comprises a thawing chamber, a plate electrode disposed at the bottom of the thawing chamber and used to place food, a needle electrode disposed at the upper part of the thawing chamber, a lifting drive device disposed inside the thawing chamber and used to drive the needle electrode to move up and down, and an ultrasonic detector disposed at the needle electrode and used to measure a first distance between the needle electrode and food, and the method comprises: Obtaining a target distance value or a target distance range for thawing food; Controlling the lifting drive device to drive the needle electrode to descend so that the first distance is equal to the target distance value or the first distance falls within the target distance range; The plate-type electrode and the needle-type electrode are controlled to work so as to thaw the food.

2. The method for thawing food according to claim 1, It is characterized in that Also includes: Acquire food information, where the food information includes at least one of the following: food type, food weight, and food thickness; A target distance value or a target distance range is determined according to the food information.

3. The method for thawing food according to claim 1, It is characterized in that The target distance value or the target distance range is obtained by a user operating a key or inputting a touch screen.

4. The method for thawing food according to claim 1, It is characterized in that Also includes: Get the target thawing time; When the working time of the plate electrode and the needle electrode reaches the target thawing time, the plate electrode and the needle electrode are controlled to stop working.

5. The method for thawing food according to claim 4, It is characterized in that Also includes: When the working time of the plate electrode and the needle electrode reaches the target thawing time, a reminder signal is issued.

6. The method for thawing food according to claim 4, It is characterized in that Also includes: Acquire food information, where the food information includes at least one of the following: food type, food weight, and food thickness; The target thawing time is determined according to the food information.

7. The method for thawing food according to claim 4, It is characterized in that The target thawing time is obtained by the user operating a button or inputting on the touch screen.

8. An operation control device, It is characterized in that The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for thawing food in a refrigerator as claimed in any one of claims 1 to 7.

9. A refrigerator, It is characterized in that It includes a thawing chamber, a plate electrode arranged at the bottom of the thawing chamber and used for placing food, a needle electrode arranged at the upper part of the thawing chamber, a lifting drive device arranged inside the thawing chamber for driving the needle electrode to move up and down, an ultrasonic detector arranged at the needle electrode for measuring a first distance between the needle electrode and the food, and the operation control device as described in claim 8.

10. The refrigerator according to claim 9, It is characterized in that The needle-type electrode includes a plurality of conductive needles, and the refrigerator further includes a high-voltage power supply connected to the plate-type electrode and the needle-type electrode respectively.

11. The refrigerator according to claim 9, It is characterized in that The electric field intensity generated by the plate-type electrode and the needle-type electrode during operation is greater than 2 kV / m and less than 10 kV / m.

12. A computer-readable storage medium, It is 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 method for thawing food in a refrigerator as described in any one of claims 1 to 7.

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