Unfreezing control method and device, food unfreezing equipment and storage medium

Abstract

The invention relates to the technical field of refrigerators, in particular to an unfreezing control method and device, food unfreezing equipment and a storage medium. The air pressure in the thawing cavity of the food thawing equipment is obtained, and when the air pressure in the cavity meets the preset thawing condition, the heating device is controlled to heat the thawing cavity, so that when the interior of the thawing cavity is heated, temperature compensation is influenced by the air pressure in the cavity, the temperature compensation is not too high, and the freshness of food is not influenced; meanwhile, the first temperature in the heating device and the second temperature of the unfreezing cavity after heating are collected, when the first temperature and the second temperature meet the preset temperature reaching condition, food unfreezing is completed, according to heat exchange between the heating device and the unfreezing cavity, the technical problem that in the prior art, food unfreezing consumes long time is solved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a thawing control method, device, food thawing equipment and storage medium. Background Art

[0002] In traditional technology, in order to ensure that food does not spoil, food can be frozen and stored in a refrigerator to achieve a better preservation effect. However, when the frozen food is taken out and prepared for consumption, it needs to be thawed for a long time, and the thawing time is uncontrollable, requiring users to confirm frequently, wasting a lot of time.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a thawing control method, device, food thawing equipment and storage medium, aiming to solve the technical problem of long time consumption in food thawing in the prior art.

[0005] To achieve the above object, the present invention provides a thawing control method, which is applied to a food thawing device, wherein the food thawing device comprises a thawing chamber, a pump body and a heating device, wherein the thawing chamber is connected to the pump body and the heating device respectively;

[0006] The method comprises the following steps:

[0007] Acquiring the air pressure in the thawing chamber;

[0008] When the air pressure in the cavity meets the preset thawing condition, controlling the heating device to heat the thawing cavity;

[0009] Collecting the first temperature of the heating device and the second temperature of the thawing chamber at the current moment;

[0010] When the first temperature and the second temperature meet the preset temperature conditions, the food is thawed.

[0011] Optionally, the heating device comprises: a heating plate and a box, wherein the heating plate is arranged at the bottom of the box, and the box is used to store the thawing medium;

[0012] The thawing control method further includes:

[0013] Determining whether the first temperature and the second temperature meet a preset temperature reaching condition;

[0014] When the first temperature and the second temperature do not satisfy the preset temperature reaching condition, comparing the second temperature with a preset boiling point temperature;

[0015] When the second temperature is lower than a preset boiling point, the heating plate is controlled to heat the box body based on the first power.

[0016] Optionally, the thawing control method further includes:

[0017] When the first temperature and the second temperature meet a preset temperature reaching condition, the heating plate is controlled to heat the water tank based on a second power, and the second power is less than the first power.

[0018] Optionally, the preset temperature reaching condition includes: a temperature rise change value of the first temperature within a preset time period is less than a preset temperature threshold, and the first temperature is equal to the second temperature.

[0019] Optionally, the thawing control method further includes:

[0020] When the second temperature is greater than or equal to a preset boiling point, the heating plate is controlled to heat the box body based on a second power, and the third power is less than the first power and greater than the second power.

[0021] Optionally, the pump body comprises: a first pump body, a second pump body, a first throttling element and a second throttling element, the air outlet of the first pump body is connected to the normally open end of the first throttling element, the first strobe end of the first throttling element is connected to the outside, the second strobe end of the first throttling element is respectively connected to the air inlet of the second pump body and the second end of the second throttling element, the air outlet of the second pump body is connected to the outside air, and the first end of the second throttling element is respectively connected to the thawing chamber and the air inlet of the first pump body;

[0022] The thawing control method further includes:

[0023] When the air pressure in the cavity is less than a preset negative pressure value, the normally open end of the first solenoid valve and the first selection end are connected, and the second throttling element is connected, so that the first pump body and the second pump body are pumped in parallel.

[0024] Optionally, the thawing control method further includes:

[0025] When the air pressure in the cavity is greater than or equal to the first negative pressure value, the normally open end and the second selection end of the first solenoid valve are connected, and the second throttling element is disconnected, so that the first pump body and the second pump body are evacuated in series until the air pressure in the cavity meets the preset thawing condition.

[0026] In addition, to achieve the above-mentioned purpose, the present invention also provides a thawing control device, the thawing control device comprising:

[0027] An acquisition module, used for acquiring the air pressure in the thawing chamber;

[0028] A heating module, used for controlling the heating device to heat the thawing chamber when the air pressure in the chamber meets a preset thawing condition;

[0029] A collection module, used for collecting the first temperature of the heating device and the second temperature of the thawing chamber at the current moment;

[0030] The thawing module is used to complete the thawing of food when the first temperature and the second temperature meet the preset temperature conditions.

[0031] In addition, to achieve the above-mentioned purpose, the present invention also proposes a food thawing device, which includes: a memory, a processor, and a thawing control program stored in the memory and executable on the processor, wherein the thawing control program is configured to implement the steps of the thawing control method described above.

[0032] In addition, to achieve the above-mentioned purpose, the present invention further proposes a storage medium, on which a thawing control program is stored, and when the thawing control program is executed by a processor, the steps of the thawing control method described above are implemented.

[0033] The present invention obtains the air pressure in the thawing chamber of the food thawing equipment, and controls the heating device to heat the thawing chamber when the air pressure in the chamber meets the preset thawing condition, so that when the thawing chamber is heated, the temperature compensation is affected by the air pressure in the chamber and will not be too high to affect the freshness of the food. At the same time, the first temperature in the heating device and the second temperature of the thawing chamber after heating are collected. When the first temperature and the second temperature meet the preset temperature conditions, the food is thawed. According to the heat exchange between the heating device and the thawing chamber, the technical problem of long time-consuming food thawing in the prior art is avoided, and the user experience is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of a food thawing device in a hardware operating environment involved in an embodiment of the present invention;

[0035] Figure 2 It is a schematic flow chart of the first embodiment of the thawing control method of the present invention;

[0036] Figure 3 A schematic diagram of the structure of a food thawing device according to an embodiment of a thawing control method of the present invention;

[0037] Figure 4 It is a flow chart of the second embodiment of the thawing control method of the present invention;

[0038] Figure 5 It is a flow chart of the third embodiment of the thawing control method of the present invention;

[0039] Figure 6 A schematic diagram of a first pump body and a second pump body connected in parallel in an embodiment of a thawing control method of the present invention;

[0040] Figure 7 A schematic diagram of a first pump body and a second pump body connected in series in one embodiment of a thawing control method of the present invention;

[0041] Figure 8 It is a structural block diagram of the first embodiment of the thawing control device of the present invention.

[0042] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0044] Reference Figure 1 , Figure 1 The schematic diagram of the structure of food thawing equipment in the hardware operating environment involved in the embodiment of the present invention.

[0045] like Figure 1 As shown, the food thawing device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM), or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk storage. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0046] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the food thawing device, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0047] like Figure 1As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a thawing control program.

[0048] exist Figure 1 In the food thawing device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the food thawing device of the present invention can be set in the food thawing device, and the food thawing device calls the thawing control program stored in the memory 1005 through the processor 1001, and executes the thawing control method provided by the embodiment of the present invention.

[0049] The embodiment of the present invention provides a thawing control method, referring to Figure 2 , Figure 2 It is a flow chart of a first embodiment of a thawing control method of the present invention.

[0050] In this embodiment, the thawing control method includes the following steps:

[0051] Step S10: obtaining the air pressure in the thawing chamber.

[0052] It should be noted that the executor of the method of this embodiment can be a device with data collection, data processing and program running functions, such as: a refrigerator controller or a thawing device controller, etc., or other devices that can achieve the same or similar functions. This embodiment does not impose specific restrictions on this. In this embodiment and the following embodiments, the refrigerator controller will be used as an example for explanation.

[0053] In the traditional technology, in order to thaw the food, a microwave system is generally set up to thaw the food by microwaves. However, a microwave system is too expensive and will damage the freshness of the food.

[0054] It is worth mentioning that the reference Figure 3 , Figure 3The schematic diagram of the structure of the food thawing device of the method of this embodiment is as follows, wherein the food thawing device comprises a thawing chamber, a pump body and a heating device, wherein the thawing chamber is connected to the pump body and the heating device respectively, and the thawing chamber is mainly used to store food or devices to be thawed, etc.; the heating device includes but is not limited to a heating plate and a box body, wherein the heating plate is arranged at the bottom of the box body, and the box body is used to store a thawing medium, and the thawing medium may be water, air or other medium that can achieve a thawing effect and is harmless to food. In this embodiment and coefficient embodiments, water is used as the thawing medium, and the water tank is used as the box body for illustration; the pump body is used to evacuate the thawing chamber to reduce the pressure in the thawing chamber and form a negative pressure between the pump body and the heating device, so that the water vapor in the heating device is automatically sucked into the thawing chamber and exchanges heat with the food stored in the thawing chamber.

[0055] In a specific implementation, the food thawing device includes a water storage tank 1, a heating water tank 2, a heating plate 3, a vacuum thawing drawer 4, a condensing U-tube 5, a condensing water box 6, a vacuum pump 7 and a sealing ring 8, wherein the food thawing device can be installed inside a refrigerator, so that after the food thawing device is heated once, water vapor can be condensed through the condensing U-tube and flow back into the water tank to avoid repeated addition of water.

[0056] It can be understood that the air pressure in the cavity refers to the air pressure value in the thawing cavity, which can be collected by a pressure sensor arranged in the thawing cavity, or other equipment that can realize the pressure collection function. This embodiment does not make specific restrictions on this. Among them, since the water tank and the thawing cavity are connected, the air pressure in the cavity is specifically the common air pressure value of the thawing cavity and the water tank.

[0057] Step S20: When the air pressure in the cavity meets a preset thawing condition, controlling the heating device to heat the thawing cavity.

[0058] It should be noted that the preset thawing condition can be that the air pressure value in the thawing chamber reaches a set target air pressure value, so that the air pressure in the thawing chamber is in a negative pressure state compared to the normal air pressure, wherein the target air pressure value is the water evaporation air pressure value corresponding to the thawing temperature set by the user.

[0059] In a specific implementation, controlling the heating device to heat the thawing chamber refers to a process of operating the heating plate at the bottom of the water tank to increase the water temperature in the water tank until it reaches the boiling point and generates a large amount of water vapor.

[0060] Since the temperature of water vapor is relatively high under normal pressure, in order to prevent the high-temperature water vapor from steaming the food in the thawing chamber during the thawing process, the present embodiment reduces the air pressure in the thawing chamber through the pump body, so that the air pressure of the water tank connected to the thawing chamber is reduced synchronously, thereby achieving the purpose of reducing the boiling point of water. For example, under normal air pressure, the boiling point of water is 100 degrees Celsius. At this time, the water vapor needs to be heated to close to 100 degrees Celsius to generate a large amount of water vapor and achieve thawing. By reducing the air pressure in the thawing chamber and the water tank, the water can boil at 40 degrees Celsius. At this time, the temperature of the water vapor is higher than the temperature of the food in the thawing chamber, but will not steam the food.

[0061] Step S30: collecting the first temperature of the heating device and the second temperature of the thawing chamber at the current moment.

[0062] It should be noted that the first temperature refers to the temperature on the water tank side where the water tank is connected to the thawing chamber. This can prevent the water vapor temperature from being too high and affecting the freshness of the food, and also to prevent heat exchange when the water vapor is transmitted to the thawing chamber through the pipeline, which affects the judgment of whether the subsequent thawing is completed. The second temperature can be the temperature on the thawing chamber side at the interface between the thawing chamber and the air pump. The temperature difference before and after the water vapor changes can be used to determine whether there is heat exchange in the thawing chamber. If so, it indicates that the thawing is not completed. If not, it indicates that the temperature of the food in the thawing chamber is consistent with the temperature of the water vapor under the current air pressure state in the chamber.

[0063] Step S40: When the first temperature and the second temperature meet the preset temperature conditions, the food is thawed.

[0064] In this embodiment and the following embodiments, the preset temperature reaching condition means that the temperature rise change value of the first temperature within the preset time period is less than the preset temperature threshold, and the first temperature is equal to either of the second temperature, wherein the preset time period can be set to 10s, for example: the change value of the water tank temperature within 10s is less than 1 degree Celsius, then it can be determined that the water vapor temperature in the water tank reaches the set temperature, in the above case, if the first temperature and the second temperature are equal, it indicates that there is no heat exchange in the thawing chamber, and the food thawing process is completed at this time.

[0065] In addition, it is also possible to judge whether the difference between the first temperature and the second temperature is less than a preset threshold value based on the fact that the temperature rise change value of the first temperature within the preset time period is less than the preset temperature threshold value, and then judge whether the thawing process is completed. The preset threshold value can be 0.5 degrees Celsius, and this embodiment does not impose specific restrictions on this.

[0066] In a specific implementation, determining that the temperature rise change value of the first temperature within a preset time period is less than a preset temperature threshold is to compensate for the problem of inconsistent boiling point temperature caused by negative pressure deviation.

[0067] This embodiment obtains the air pressure in the thawing chamber of the food thawing equipment, and controls the heating device to heat the thawing chamber when the air pressure in the chamber meets the preset thawing conditions, so that when the thawing chamber is heated, the temperature compensation is affected by the air pressure in the chamber and will not be too high to affect the freshness of the food. At the same time, the first temperature in the heating device and the second temperature of the thawing chamber after heating are collected. When the first temperature and the second temperature meet the preset temperature conditions, the food is thawed. According to the heat exchange between the heating device and the thawing chamber, the technical problem of long time-consuming food thawing in the prior art is avoided, thereby improving the user experience.

[0068] refer to Figure 4 , Figure 4 It is a flow chart of a second embodiment of a thawing control method of the present invention.

[0069] Based on the first embodiment above, in this embodiment, after step S30, the following steps are further included:

[0070] Step S310: determining whether the first temperature and the second temperature satisfy a preset temperature reaching condition.

[0071] It should be noted that the purpose of judging whether the first temperature and the second temperature meet the preset temperature conditions is to control the operating power of the heating plate in the food thawing equipment so as to achieve corresponding effects at different stages. For example, when the water tank temperature is low, in order to speed up the thawing process and reduce the thawing time, the heating plate can be controlled to operate at a larger operating power to achieve the purpose of rapid heating. This embodiment does not impose specific restrictions on this.

[0072] Step S320: When the first temperature and the second temperature do not satisfy the preset temperature reaching condition, compare the second temperature with a preset boiling point temperature.

[0073] In a specific implementation, when the first temperature and the second temperature do not meet the preset temperature conditions, it means that the thawing process has not ended. At this time, in order to improve the thawing efficiency, the power of the heating plate can be controlled in a targeted manner according to the relationship between the first temperature corresponding to the water tank and the preset boiling point temperature. When the first temperature is low, the heating rate can be accelerated. When the first temperature is close to the boiling point, the water tank can be heated with a smaller power to prevent the water tank from boiling violently.

[0074] Step S330: When the second temperature is lower than a preset boiling point, the heating plate is controlled to heat the box body based on the first power.

[0075] In a specific implementation, the preset boiling point temperature can be the water tank boiling point temperature minus the preset constant, where the water tank boiling point temperature refers to the water boiling point temperature corresponding to the set target air pressure value in the water tank, and the preset constant can be set to 5 degrees Celsius.

[0076] When the second temperature is greater than or equal to a preset boiling point, the heating plate is controlled to heat the box body based on a second power, and the third power is less than the first power and greater than the second power.

[0077] In the specific implementation, the boiling point temperature of the water tank is 40 degrees Celsius. At this time, if the second temperature corresponding to the thawing chamber is less than 35 degrees Celsius, the water tank can be heated based on the heating plate controlled by a power of 200W. If the second temperature corresponding to the thawing chamber exceeds 35 degrees Celsius but is lower than 40 degrees Celsius, the water tank can be heated based on the heating plate controlled by a power of 100W. If the second temperature corresponding to the thawing chamber is greater than or equal to 40 degrees Celsius, the water tank can be heated based on the heating plate controlled by a power of 20W, and the heating plate and the pump body can also be controlled to shut down.

[0078] In addition, when the first temperature and the second temperature meet the preset temperature reaching condition, the heating plate is controlled to heat the water tank based on a second power, and the second power is less than the first power.

[0079] This embodiment determines whether the first temperature and the second temperature meet the preset temperature conditions, and combines the size relationship between the second temperature and the preset boiling point temperature to adjust the operating power of the heating plate to improve the thawing efficiency.

[0080] refer to Figure 5 , Figure 5 It is a flow chart of a third embodiment of a thawing control method of the present invention.

[0081] Based on the above second embodiment, in this embodiment, after step S10, the following steps are further included:

[0082] Step S110: When the air pressure in the cavity is less than a preset negative pressure value, the normally open end of the first solenoid valve and the first selection end are connected, and the second throttling element is connected to enable the first pump body and the second pump body to pump air in parallel.

[0083] It should be noted that the preset negative pressure value refers to the difference between the target air pressure value corresponding to the water vapor temperature set by the user and the normal atmospheric pressure.

[0084] In this embodiment, the pump body includes: a first pump body, a second pump body, a first throttling element and a second throttling element, the air outlet of the first pump body is connected to the normally open end of the first throttling element, the first selection end of the first throttling element is connected to the outside world, the second selection end of the first throttling element is respectively connected to the air inlet of the second pump body and the second end of the second throttling element, the air outlet of the second pump body is connected to the outside air, and the first end of the second throttling element is respectively connected to the thawing chamber and the air inlet of the first pump body.

[0085] In a specific implementation, the first pump body and the second pump body may be two independent vacuum pump bodies, or may be an integrated double-head pump body, for example: Figure 7 The double-head vacuum pump shown is not specifically limited in this embodiment.

[0086] In the specific implementation, refer to Figure 6 When the air pressure in the cavity is less than the preset negative pressure value, the first pump body and the second pump body are connected in parallel by connecting the normally open end of the first solenoid valve and the first selection end, and connecting the second throttling element, so that the first pump body and the second pump body are connected in parallel, and the air extraction function of the thawing cavity is realized at the same time. In the parallel case, the air extraction flow rate is small and the negative pressure generated is large.

[0087] In addition, reference Figure 7 When the air pressure in the cavity is greater than or equal to the first negative pressure value, the normally open end and the second selection end of the first solenoid valve are connected, and the second throttling element is disconnected, so that the first pump body and the second pump body are connected in series, and the air extraction function of the thawing cavity is realized at the same time. In the parallel case, the air extraction flow rate is larger and the negative pressure generated is smaller.

[0088] This embodiment adjusts the connection state between the first solenoid valve and the second solenoid valve, thereby adjusting the connection state between the first pump body and the second pump body, adapting to different negative pressure conditions and accelerating the thawing rate.

[0089] In addition, an embodiment of the present invention further provides a storage medium, on which a thawing control program is stored. When the thawing control program is executed by a processor, the steps of the thawing control method described above are implemented.

[0090] Since the storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0091] Reference Figure 8 , Figure 8 It is a structural block diagram of the first embodiment of the thawing control device of the present invention.

[0092] like Figure 8 As shown, the thawing control device proposed in the embodiment of the present invention includes:

[0093] The acquisition module 10 is used to acquire the air pressure in the thawing chamber.

[0094] In the traditional technology, in order to thaw the food, a microwave system is generally set up to thaw the food by microwaves. However, a microwave system is too expensive and will damage the freshness of the food.

[0095] It is worth mentioning that the reference Figure 3 , Figure 3The schematic diagram of the structure of the food thawing device of the method of this embodiment is as follows, wherein the food thawing device comprises a thawing chamber, a pump body and a heating device, wherein the thawing chamber is connected to the pump body and the heating device respectively, and the thawing chamber is mainly used to store food or devices to be thawed, etc.; the heating device includes but is not limited to a heating plate and a box body, wherein the heating plate is arranged at the bottom of the box body, and the box body is used to store a thawing medium, and the thawing medium may be water, air or other medium that can achieve a thawing effect and is harmless to food. In this embodiment and coefficient embodiments, water is used as the thawing medium, and the water tank is used as the box body for illustration; the pump body is used to evacuate the thawing chamber to reduce the pressure in the thawing chamber and form a negative pressure between the pump body and the heating device, so that the water vapor in the heating device is automatically sucked into the thawing chamber and exchanges heat with the food stored in the thawing chamber.

[0096] In a specific implementation, the food thawing device includes a water storage tank 1, a heating water tank 2, a heating plate 3, a vacuum thawing drawer 4, a condensing U-tube 5, a condensing water box 6, a vacuum pump 7 and a sealing ring 8, wherein the food thawing device can be installed inside a refrigerator, so that after the food thawing device is heated once, water vapor can be condensed through the condensing U-tube and flow back into the water tank to avoid repeated addition of water.

[0097] It can be understood that the air pressure in the cavity refers to the air pressure value in the thawing cavity, which can be collected by a pressure sensor arranged in the thawing cavity, or other equipment that can realize the pressure collection function. This embodiment does not make specific restrictions on this. Among them, since the water tank and the thawing cavity are connected, the air pressure in the cavity is specifically the common air pressure value of the thawing cavity and the water tank.

[0098] The heating module 20 is used to control the heating device to heat the thawing chamber when the air pressure in the chamber meets a preset thawing condition.

[0099] It should be noted that the preset thawing condition can be that the air pressure value in the thawing chamber reaches a set target air pressure value, so that the air pressure in the thawing chamber is in a negative pressure state compared to the normal air pressure, wherein the target air pressure value is the water evaporation air pressure value corresponding to the thawing temperature set by the user.

[0100] In a specific implementation, controlling the heating device to heat the thawing chamber refers to a process of operating the heating plate at the bottom of the water tank to increase the water temperature in the water tank until it reaches the boiling point and generates a large amount of water vapor.

[0101] Since the temperature of water vapor is relatively high under normal pressure, in order to prevent the high-temperature water vapor from steaming the food in the thawing chamber during the thawing process, the present embodiment reduces the air pressure in the thawing chamber through the pump body, so that the air pressure of the water tank connected to the thawing chamber is reduced synchronously, thereby achieving the purpose of reducing the boiling point of water. For example, under normal air pressure, the boiling point of water is 100 degrees Celsius. At this time, the water vapor needs to be heated to close to 100 degrees Celsius to generate a large amount of water vapor and achieve thawing. By reducing the air pressure in the thawing chamber and the water tank, the water can boil at 40 degrees Celsius. At this time, the temperature of the water vapor is higher than the temperature of the food in the thawing chamber, but will not steam the food.

[0102] The acquisition module 30 is used to acquire the first temperature of the heating device and the second temperature of the thawing chamber at the current moment.

[0103] It should be noted that the first temperature refers to the temperature on the water tank side where the water tank is connected to the thawing chamber. This can prevent the water vapor temperature from being too high and affecting the freshness of the food, and also to prevent heat exchange when the water vapor is transmitted to the thawing chamber through the pipeline, which affects the judgment of whether the subsequent thawing is completed. The second temperature can be the temperature on the thawing chamber side at the interface between the thawing chamber and the air pump. The temperature difference before and after the water vapor changes can be used to determine whether there is heat exchange in the thawing chamber. If so, it indicates that the thawing is not completed. If not, it indicates that the temperature of the food in the thawing chamber is consistent with the temperature of the water vapor under the current air pressure state in the chamber.

[0104] The thawing module 40 is used to complete thawing of food when the first temperature and the second temperature meet a preset temperature condition.

[0105] In this embodiment and the following embodiments, the preset temperature reaching condition means that the temperature rise change value of the first temperature within the preset time period is less than the preset temperature threshold, and the first temperature is equal to either of the second temperature, wherein the preset time period can be set to 10s, for example: the change value of the water tank temperature within 10s is less than 1 degree Celsius, then it can be determined that the water vapor temperature in the water tank reaches the set temperature, in the above case, if the first temperature and the second temperature are equal, it indicates that there is no heat exchange in the thawing chamber, and the food thawing process is completed at this time.

[0106] In addition, it is also possible to judge whether the difference between the first temperature and the second temperature is less than a preset threshold value based on the fact that the temperature rise change value of the first temperature within the preset time period is less than the preset temperature threshold value, and then judge whether the thawing process is completed. The preset threshold value can be 0.5 degrees Celsius, and this embodiment does not impose specific restrictions on this.

[0107] In a specific implementation, determining that the temperature rise change value of the first temperature within a preset time period is less than a preset temperature threshold is to compensate for the problem of inconsistent boiling point temperature caused by negative pressure deviation.

[0108] In one embodiment, the acquisition module 30 is also used to determine whether the first temperature and the second temperature meet the preset temperature reaching condition; when the first temperature and the second temperature do not meet the preset temperature reaching condition, compare the second temperature with the preset boiling point temperature; when the second temperature is lower than the preset boiling point temperature, control the heating plate to heat the box based on the first power.

[0109] In one embodiment, the acquisition module 30 is further used to control the heating plate to heat the water tank based on a second power when the first temperature and the second temperature meet a preset temperature reaching condition, and the second power is less than the first power.

[0110] In one embodiment, the acquisition module 30 is also used for the preset temperature reaching condition to include: the temperature rise change value of the first temperature within a preset time period is less than a preset temperature threshold, and the first temperature is equal to the second temperature.

[0111] In one embodiment, the acquisition module 30 is further used to control the heating plate to heat the box body based on a second power when the second temperature is greater than or equal to a preset boiling point, and the second power is less than the first power.

[0112] In one embodiment, the acquisition module 10 is also used to connect the normally-open end and the first selection end of the first solenoid valve and connect the second throttling element when the air pressure in the cavity is less than a preset negative pressure value, so that the first pump body and the second pump body can pump air in parallel.

[0113] In one embodiment, the acquisition module 10 is also used to connect the normally-open end and the second selection end of the first solenoid valve and disconnect the second throttling element when the air pressure in the cavity is greater than or equal to the first negative pressure value, so that the first pump body and the second pump body can pump air in parallel until the air pressure in the cavity meets the preset thawing condition.

[0114] This embodiment obtains the air pressure in the thawing chamber of the food thawing equipment, and controls the heating device to heat the thawing chamber when the air pressure in the chamber meets the preset thawing conditions, so that when the thawing chamber is heated, the temperature compensation is affected by the air pressure in the chamber and will not be too high to affect the freshness of the food. At the same time, the first temperature in the heating device and the second temperature of the thawing chamber after heating are collected. When the first temperature and the second temperature meet the preset temperature conditions, the food is thawed. According to the heat exchange between the heating device and the thawing chamber, the technical problem of long time-consuming food thawing in the prior art is avoided, thereby improving the user experience.

[0115] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are displayed in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and it can be performed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0116] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not limit this.

[0117] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0118] In addition, for technical details not fully described in this embodiment, reference can be made to the thawing control method provided in any embodiment of the present invention, and will not be repeated here.

[0119] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0120] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0121] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0122] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A thawing control method, characterized in that: The thawing control method is applied to a food thawing device, the food thawing device comprises a thawing chamber, a pump body and a heating device, the thawing chamber is connected to the pump body and the heating device respectively; The thawing control method comprises: Acquiring the air pressure in the thawing chamber; When the air pressure in the cavity meets the preset thawing condition, controlling the heating device to heat the thawing cavity; Collecting the first temperature of the heating device and the second temperature of the thawing chamber at the current moment; When the first temperature and the second temperature meet the preset temperature conditions, the food is thawed.

2. The thawing control method according to claim 1, characterized in that: The heating device comprises: a heating plate and a box, wherein the heating plate is arranged at the bottom of the box, and the box is used to store the thawing medium; The thawing control method further includes: Determining whether the first temperature and the second temperature meet a preset temperature reaching condition; When the first temperature and the second temperature do not satisfy the preset temperature reaching condition, comparing the second temperature with a preset boiling point temperature; When the second temperature is lower than a preset boiling point, the heating plate is controlled to heat the box body based on the first power.

3. The thawing control method according to claim 2, characterized in that: The thawing control method further includes: When the first temperature and the second temperature meet a preset temperature reaching condition, the heating plate is controlled to heat the water tank based on a second power, and the second power is less than the first power.

4. The thawing control method according to any one of claims 1 to 3, characterized in that: The preset temperature reaching condition includes: the temperature rise change value of the first temperature within a preset time period is less than a preset temperature threshold, and the first temperature is equal to the second temperature.

5. The thawing control method according to claim 2, characterized in that: The thawing control method further includes: When the second temperature is greater than or equal to a preset boiling point, the heating plate is controlled to heat the box body based on a second power, and a third power is less than the first power and greater than the second power.

6. The thawing control method according to claim 1, characterized in that: The pump body comprises: a first pump body, a second pump body, a first throttling element and a second throttling element, the air outlet of the first pump body is connected to the normally open end of the first throttling element, the first strobe end of the first throttling element is connected to the outside, the second strobe end of the first throttling element is respectively connected to the air inlet of the second pump body and the second end of the second throttling element, the air outlet of the second pump body is connected to the outside air, and the first end of the second throttling element is respectively connected to the thawing chamber and the air inlet of the first pump body; The thawing control method further includes: When the air pressure in the cavity is less than a preset negative pressure value, the normally open end of the first solenoid valve and the first selection end are connected, and the second throttling element is connected, so that the first pump body and the second pump body are pumped in parallel.

7. The thawing control method according to claim 6, characterized in that: The thawing control method further includes: When the air pressure in the cavity is greater than or equal to the first negative pressure value, the normally open end and the second selection end of the first solenoid valve are connected, and the second throttling element is disconnected, so that the first pump body and the second pump body are evacuated in series until the air pressure in the cavity meets the preset thawing condition.

8. A thawing control device, characterized in that: The thawing control device comprises: An acquisition module, used for acquiring the air pressure in the thawing chamber; A heating module, used for controlling the heating device to heat the thawing chamber when the air pressure in the chamber meets a preset thawing condition; A collection module, used for collecting the first temperature of the heating device and the second temperature of the thawing chamber at the current moment; The thawing module is used to complete the thawing of food when the first temperature and the second temperature meet the preset temperature conditions.

9. A food thawing device, characterized in that: The food thawing device comprises: a memory, a processor, and a thawing control program stored in the memory and executable on the processor, wherein the thawing control program is configured to implement the thawing control method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores a thawing control program, and when the thawing control program is executed by the processor, the thawing control method according to any one of claims 1 to 7 is implemented.

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