CN116420769A - Defrosting control method and heating device - Google Patents

Defrosting control method and heating device Download PDF

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Publication number
CN116420769A
CN116420769A CN202210002591.0A CN202210002591A CN116420769A CN 116420769 A CN116420769 A CN 116420769A CN 202210002591 A CN202210002591 A CN 202210002591A CN 116420769 A CN116420769 A CN 116420769A
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China
Prior art keywords
temperature
heating
defrosting
treated
thawing
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Pending
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CN202210002591.0A
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Chinese (zh)
Inventor
刘浩泉
苗建林
王睿龙
苟茜
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Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN202210002591.0A priority Critical patent/CN116420769A/en
Priority to PCT/CN2022/144318 priority patent/WO2023131093A1/en
Publication of CN116420769A publication Critical patent/CN116420769A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B4/00—General methods for preserving meat, sausages, fish or fish products
    • A23B4/06—Freezing; Subsequent thawing; Cooling
    • A23B4/07—Thawing subsequent to freezing
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/365—Thawing subsequent to freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0202—Switches
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0258—For cooking
    • H05B1/0261—For cooking of food

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)

Abstract

The invention provides a defrosting control method and a heating device. The heating device comprises a shell, a heating system, an inflating system and a controller. The housing defines a thawing chamber for holding an object to be treated. The heating system is configured to provide heat to the defrosting chamber to heat the object to be treated. The inflation system is configured to inflate the oxygen-enriched gas into the defrosting chamber to increase the oxygen concentration of the defrosting chamber. The control method comprises the following steps: controlling the heating system to work so as to heat the object to be treated in the defrosting cavity; controlling the inflation system to inflate the oxygen-enriched gas into the thawing chamber; and when the oxygen concentration of the thawing chamber is greater than or equal to a preset concentration threshold value, controlling the inflation system to stop working. In the heating process, the oxygen-enriched gas is filled into the thawing chamber, so that not only can the thawing efficiency be improved by utilizing high pressure, but also the conversion of myoglobin in the meat to oxymyoglobin can be promoted while the nutritional ingredients of the meat are not degraded, and the sensory quality of the food after thawing can be improved.

Description

Defrosting control method and heating device
Technical Field
The invention relates to the field of food processing, in particular to a defrosting control method and a heating device.
Background
The technical scheme of defrosting in the prior art mainly comprises air defrosting, water defrosting and electromagnetic wave defrosting. The air thawing time is long, bacterial microorganisms are easy to breed, and juice is more lost; the hydrolysis and freezing time is slightly short, but bacteria microorganisms are easy to grow, and the appearance of the food material is degraded; the electromagnetic wave thawing and heating speed is high, but the water content of proteins, fat, bones and the like at different parts is different, so that local overheating or supercooling is easy to cause, and the quality of food is seriously affected.
Disclosure of Invention
An object of the first aspect of the present invention is to overcome at least one technical defect in the prior art, and to provide a thawing control method, so that the thawed food material has better sensory quality.
A further object of the first aspect of the present invention is to simplify the user operation.
An object of the second aspect of the present invention is to provide a heating apparatus to which the above thawing control method can be applied.
A further object of the second aspect of the invention is to improve the temperature uniformity of the object to be treated.
According to a first aspect of the present invention, there is provided a thawing control method comprising:
controlling the heating system to work so as to heat the object to be treated in the defrosting cavity;
controlling an inflation system to inflate the oxygen-enriched gas into the thawing chamber;
and when the oxygen concentration of the thawing chamber is greater than or equal to a preset concentration threshold value, controlling the inflation system to stop working.
Optionally, when the temperature value sensed by the temperature sensor is greater than or equal to a preset first temperature threshold value, executing the step of controlling the inflation system to inflate the oxygen-enriched gas into the thawing chamber; wherein, the liquid crystal display device comprises a liquid crystal display device,
the temperature sensor is used for sensing the temperature of the object to be processed.
Optionally, when the temperature value sensed by the temperature sensor is greater than or equal to a preset second temperature threshold, a visual and/or audible signal is sent to the user so as to prompt the user to take out the object to be treated, wherein the first temperature threshold is smaller than the second temperature threshold; wherein, the liquid crystal display device comprises a liquid crystal display device,
the first temperature threshold is-8 to-4 ℃; and/or
The second temperature threshold is-4-0 ℃.
Optionally, after the step of sending a visual and/or audible signal to the user is performed, when a preset extraction time is reached, controlling the heating system to stop working; and/or
When the temperature value sensed by the temperature sensor is greater than or equal to a preset third temperature threshold value, sending the visual and/or audible signals to a user again, and controlling the heating system to stop working; wherein the third temperature threshold is greater than the second temperature threshold.
Optionally, when the decreasing rate of the temperature value sensed by the temperature sensor is greater than or equal to a preset first rate threshold, executing the step of controlling the heating system to work; and/or
When the rising speed of the temperature value sensed by the temperature sensor is greater than or equal to a preset second speed threshold value, controlling the heating system to stop working; wherein, the liquid crystal display device comprises a liquid crystal display device,
the temperature sensor is used for sensing the temperature of the object to be processed.
According to a second aspect of the present invention, there is provided a heating device comprising:
a housing defining a thawing chamber for holding an object to be treated;
a heating system configured to provide heat to the thawing chamber to heat the object to be treated;
an inflation system configured to inflate an oxygen-enriched gas into the defrosting chamber to increase an oxygen concentration of the defrosting chamber; and
a controller configured to perform any of the control methods described above.
Optionally, the heating device further comprises:
the defrosting tray is arranged in the defrosting cavity and used for bearing the object to be treated; wherein the heating system comprises:
the heating wire is arranged below the defrosting tray and is used for heating the object to be treated by heating the defrosting tray.
Optionally, the heating wire is spaced from the thawing tray; or (b)
The heating wire is arranged on the outer side of the thawing chamber.
Optionally, the heating device further comprises:
the temperature sensor is arranged below the defrosting tray and is used for sensing the temperature of the object to be processed.
Optionally, the heating wire is arranged such that a projection on a horizontal plane surrounds the temperature sensor.
In the heating process, oxygen-enriched gas is filled into the thawing chamber, so that not only can the thawing efficiency be improved by utilizing high pressure, but also the nutritional ingredients of the meat (especially red meat such as pork, beef, mutton and the like) can be not degraded, the conversion of myoglobin in the meat (especially red meat such as pork, beef, mutton and the like) to oxymyoglobin can be promoted, and the sensory quality of the food material after thawing can be improved.
Further, the invention judges whether the object to be treated is put in or taken out according to the rising rate and the falling rate of the temperature sensed by the temperature sensor, and starts and stops the heating system when the object to be treated is determined to be put in or taken out, so that manual input of a user is not needed, the operation flow of the user is simplified, an additional detection device is not needed, and the production cost is reduced.
Furthermore, the invention thaws the object to be processed through the defrosting tray and the heating wire, and the heating wire and the defrosting tray are kept at intervals, the temperature sensor is used for indirectly sensing the temperature of the object to be processed by sensing the temperature of the defrosting tray and is surrounded by the horizontal projection of the heating wire, so that the defrosting efficiency of the object to be processed is improved, the temperature uniformity of the object to be processed is improved, the interference of the heating wire to the temperature sensor is reduced, and the accurate comprehensive temperature of the object to be processed can be obtained without arranging a plurality of temperature sensors.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic cross-sectional view of a heating device according to one embodiment of the invention;
FIG. 2 is a schematic exploded view of the heating device shown in FIG. 1;
FIG. 3 is a schematic block diagram of a controller according to one embodiment of the present invention;
FIG. 4 is a schematic flow chart of a defrost control method in accordance with one embodiment of the invention;
fig. 5 is a schematic detailed flowchart of a thawing control method according to an embodiment of the present invention.
Detailed Description
FIG. 1 is a schematic cross-sectional view of a heating device 100 according to one embodiment of the invention; fig. 2 is a schematic exploded view of the heating apparatus 100 shown in fig. 1. Referring to fig. 1 and 2, the heating apparatus 100 may include a housing, a heating system, an inflation system, and a controller 140.
The housing may define a thawing chamber 113 for holding the object to be treated.
In some embodiments, the housing may include a drawer 111 that is opened upward, and a cover plate 112 disposed at an opening of the drawer 111. Wherein the drawer 111 is slidable in the front-rear direction.
In other embodiments, the housing may include a forward opening barrel and a door disposed at the opening of the barrel. Wherein, the door body is arranged to slide back and forth or rotate to open and close the opening of the cylinder.
The inflation system may be configured to inflate the oxygen-enriched gas into the defrosting chamber 113 to increase the oxygen concentration within the defrosting chamber 113. The oxygen concentration of the oxygen-enriched gas may be 85% or more.
The inflation system may include an air conditioning module, an inflation tube 132, and an inflator. Wherein, the air charging tube 132 may be configured to have one end communicated with the air outlet of the air conditioning module and one end communicated with the thawing chamber 113. The air conditioning module may filter the oxygen in the environment surrounding the heating device 100 and output the oxygen to the inflation tube 132. The inflator may facilitate the flow of gas from the air conditioning module to the defrost chamber 113.
The air conditioning module can also be replaced by an oxygen tank.
The heating system may be configured to provide heat to the defrosting chamber 113 to heat the object to be treated.
In some embodiments, the heating system may include a heating wire 120 to heat the object to be treated by thermal radiation.
In other embodiments, the heating system may include an electromagnetic wave generating module and a radiating antenna to generate electromagnetic waves to heat the object to be treated.
The technical solution of the present invention will be described in detail below by taking the case including the drawer 111 and the heating system including the heating wire 120 as an example.
In some embodiments, the heating apparatus 100 may further include a defrosting tray 150. The thawing tray 150 is disposed in the thawing chamber 113 and is used for carrying an object to be treated. Specifically, the thawing tray 150 may be mounted on the bottom wall of the drawer 111 for easy cleaning by the user.
The thawing tray 150 may include a thawing plate, an upper rim, and a lower rim. The upper frame and the lower frame can be of annular structures and are buckled on the circumferential edge of the defrosting plate. The object to be treated can be arranged on the thawing plate.
The thawing plate can be made of stainless steel or aluminum alloy to obtain good heat conduction performance.
The heating wire 120 may be disposed under the defrosting tray 150, and heating of the object to be treated is achieved by heating the defrosting tray 150, i.e., the defrosting tray 150 rapidly and uniformly obtains heat of the heating wire 120 and cold of the object to be treated (transfers heat to the object to be treated).
In some further embodiments, the heater wire 120 may be spaced from the defrosting tray 150 to allow sufficient heat transfer of different portions of the object to be treated to improve temperature uniformity of the object to be treated.
The heating wire 120 may also be directly disposed outside the thawing chamber 113, so that the temperature of the object to be treated is more uniform. In the illustrated embodiment, the heater wire 120 may be at least partially embedded in the bottom wall of the drawer 111. The drawer 111 may be made of plastic.
In some embodiments, the heating device 100 may also include a temperature sensor 160. The temperature sensor 160 may be disposed below the defrosting tray 150 for sensing the temperature of the object to be processed. That is, the temperature sensor 160 indirectly senses the temperature of the object to be treated by sensing the temperature of the defrosting pan 150, so that a relatively precise integrated temperature of the object to be treated (which integrates the effects of the heat transfer efficiency inside the object to be treated, the heat transfer efficiency between the object to be treated and the defrosting pan 150, the heat conduction efficiency of the defrosting pan 150 itself, the heating efficiency of the heating wire 120, etc.) can be obtained, which is advantageous for the precise execution of the control method of the present invention.
The bottom wall of the drawer 111 may be provided with mounting holes. The temperature sensor 160 may be at least partially disposed within the mounting hole.
The heater wire 120 may be disposed such that a projection on a horizontal plane surrounds the temperature sensor 160 to reduce interference of the heater wire 120 with the temperature sensor 160. In the illustrated embodiment, the heating wire 120 may be provided to extend spirally in the circumferential direction of the temperature sensor 160.
In other embodiments, the temperature sensor 160 may be fixed to the cover 112 to sense the temperature of the object to be processed.
Fig. 3 is a schematic block diagram of the controller 140 according to one embodiment of the present invention. Referring to fig. 3, the controller 140 may include a processing unit 141 and a storage unit 142. The storage unit 142 stores a computer program 143, and the computer program 143 is used to implement the control method according to the embodiment of the present invention when executed by the processing unit 141.
In particular, the processing unit 141 may be configured to control the inflation system to charge oxygen-enriched gas into the thawing chamber 113 during the process of controlling the heating wire 120 to heat the object to be treated in the thawing chamber 113, and to control the inflation system to stop the operation when the oxygen concentration of the thawing chamber 113 is equal to or greater than a preset concentration threshold. The concentration threshold may be 50% to 65%, such as 50%, 55%, 60%, or 65%.
In the heating device 100 of the present invention, oxygen-enriched gas is filled into the thawing chamber 113 during heating, so that not only can the thawing efficiency be improved by using high pressure, but also myoglobin in meat (especially red meat such as pork, beef, mutton, etc.) can be promoted to convert into oxymyoglobin while the nutritional ingredients of the meat are not degraded, and the sensory quality of the food after thawing can be improved.
In some embodiments, the processing unit 141 may be further configured to control the gas filling system to fill the oxygen-enriched gas into the thawing chamber 113 when the temperature value sensed by the temperature sensor 160 is equal to or greater than a preset first temperature threshold value, so as to ensure the quality of the food material.
In some further embodiments, the processing unit 141 may be further configured to send a visual and/or audible signal to the user to prompt the user to take out the object to be treated when the temperature value sensed by the temperature sensor 160 is equal to or greater than the preset second temperature threshold after the oxygen-enriched gas is filled into the thawing chamber 113. Wherein the first temperature threshold may be less than the second temperature threshold.
Illustratively, the first temperature threshold may be-8 to-4 ℃, such as-8 ℃, -5 ℃, or-4 ℃, so that the treatment has a good degree of oxymyoglobin conversion. The second temperature threshold may be-4 to 0 ℃, such as-4 ℃, -2 ℃, or 0 ℃, to facilitate processing of the thawed food material.
In some further embodiments, the processing unit 141 may be further configured to control the heating system to stop operating when a preset extraction time is reached after sending a visual and/or audible signal to the user. That is, if the user does not take out the object to be processed within the preset taking-out time from the sending of the prompt signal, the heating system is controlled to stop working so as to avoid the object to be processed from being excessively thawed.
In still further embodiments, the processing unit 141 may be further configured to send a visual and/or audible signal to the user again when the temperature value sensed by the temperature sensor 160 is greater than or equal to the preset third temperature threshold, and directly control the heating system to stop working, so as to avoid excessive thawing of the object to be treated. Wherein the third temperature threshold is greater than the second temperature threshold.
The thawing device of the invention can be mounted in a refrigerator to maintain the temperature of the object to be treated by utilizing the cold of the refrigerator after thawing.
In some embodiments, the processing unit 141 may be configured to determine that the user puts the object to be processed into the thawing chamber 113 when the rate of decrease of the temperature value sensed by the temperature sensor 160 is greater than or equal to a preset first rate threshold, and control the heating system to work, so as to start heating the object to be processed, thereby simplifying the operation procedure of the user.
In some embodiments, the processing unit 141 may be configured to determine that the user takes the object to be processed out of the thawing chamber 113 when the rising rate of the temperature value sensed by the temperature sensor 160 is greater than or equal to a preset second rate threshold, and control the heating system to stop working and stop heating the object to be processed, so as to simplify the operation procedure of the user.
Fig. 4 is a schematic flow chart of a thawing control method in accordance with one embodiment of the present invention. Referring to fig. 4, the thawing control method performed by the controller 140 of any of the above embodiments of the present invention may include the steps of:
step S402: the heating system is controlled to operate to heat the object to be treated in the defrosting chamber 113.
Step S404: the inflation system is controlled to inflate the defrost chamber 113 with oxygen-enriched gas.
Step S406: when the oxygen concentration of the thawing chamber 113 is equal to or higher than a preset concentration threshold, the inflation system is controlled to stop working. Wherein the concentration threshold may be 50% to 65%, such as 50%, 55%, 60%, or 65%.
In the defrosting control method, oxygen-enriched gas is filled into the defrosting chamber 113 in the heating process, so that the defrosting efficiency can be improved by utilizing high pressure, the conversion of myoglobin in meat (especially red meat such as pork, beef and mutton) to oxymyoglobin can be promoted while the nutritional ingredients of the meat are not degraded, and the sensory quality of food materials after defrosting is improved.
In some embodiments, when the temperature value sensed by the temperature sensor 160 is greater than or equal to the preset first temperature threshold, step S404 is performed to ensure the quality of the food.
In some embodiments, after step S404, the control method of the present invention may further include the following steps:
and when the temperature value sensed by the temperature sensor 160 is greater than or equal to a preset second temperature threshold value, a visual and/or audible signal is sent to the user to prompt the user to take out the object to be processed. Wherein the first temperature threshold is less than the second temperature threshold.
Illustratively, the first temperature threshold may be-8 to-4 ℃, such as-8 ℃, -5 ℃, or-4 ℃, so that the treatment has a good degree of oxymyoglobin conversion. The second temperature threshold may be-4 to 0 ℃, such as-4 ℃, -2 ℃, or 0 ℃, to facilitate processing of the thawed food material.
In some further embodiments, the control method of the present invention may further include the steps of:
after the step of sending visual and/or audible signals to the user is performed, the heating system is controlled to stop working when the preset taking-out time is reached. That is, if the user does not take out the object to be processed within the preset taking-out time from the sending of the prompt signal, the heating system is controlled to stop working so as to avoid the object to be processed from being excessively thawed.
In still further embodiments, the control method of the present invention may further include the steps of:
when the temperature value sensed by the temperature sensor 160 is greater than or equal to a preset third temperature threshold, a visual and/or audible signal is sent to the user again, and the heating system is controlled to stop working, so that the object to be processed is prevented from being excessively thawed. Wherein the third temperature threshold is greater than the second temperature threshold.
In some embodiments, when the rate of decrease of the temperature value sensed by the temperature sensor 160 is greater than or equal to the preset first rate threshold, it is determined that the user puts the object to be processed into the thawing chamber 113, and step S402 is performed to simplify the operation procedure of the user.
In some embodiments, the control method of the present invention may further include the steps of:
when the rising rate of the temperature value sensed by the temperature sensor 160 is greater than or equal to the preset second rate threshold, it is determined that the user takes the object to be processed out of the thawing chamber 113, and the heating system is controlled to stop working, so that the operation flow of the user is simplified.
Fig. 5 is a schematic detailed flowchart of a thawing control method according to an embodiment of the present invention (in the figure, "Y" means "yes" and "N" means "no"). Referring to fig. 5, the thawing control method of the present invention may include the following detailed steps:
step S502: it is determined whether the rate of decrease of the temperature value sensed by the temperature sensor 160 is equal to or greater than a preset first rate threshold. If yes, go to step S504; if not, repeating step S502.
Step S504: the heating wire 120 is controlled to operate to heat the object to be treated.
Step S506: it is determined whether the temperature value sensed by the temperature sensor 160 is equal to or greater than a first temperature threshold. If yes, go to step S508 and step S514; if not, repeating step S506.
Step S508: the inflator is controlled to operate to charge oxygen-enriched gas into the defrosting chamber 113.
Step S510: it is determined whether the oxygen concentration of the defrosting chamber 113 is equal to or greater than a preset concentration threshold. If yes, go to step S512; if not, repeating step S510.
Step S512: and controlling the inflator pump to stop working.
Step S514: it is determined whether the temperature value sensed by the temperature sensor 160 is equal to or greater than a second temperature threshold. If yes, go to step S516; if not, step S514 is repeated. Wherein the second temperature threshold is greater than the first temperature threshold.
Step S516: and sending a visual and/or audible signal to the user to prompt the user to take out the object to be treated.
Step S518: it is determined whether the rising rate of the temperature value sensed by the temperature sensor 160 is equal to or greater than a preset second rate threshold. If yes, go to step S524; if not, go to step S520.
Step S520: it is determined whether the temperature value sensed by the temperature sensor 160 is equal to or greater than a third temperature threshold. If yes, go to step S522; if not, return to step S518. Wherein the third temperature threshold is greater than the second temperature threshold.
Step S522: and sending a visual and/or audible signal to the user to prompt the user to take out the object to be treated. Step S524 is performed.
Step S524: the heating wire 120 is controlled to stop working, and the heating of the object to be treated is finished.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A thawing control method, comprising:
controlling the heating system to work so as to heat the object to be treated in the defrosting cavity;
controlling an inflation system to inflate the oxygen-enriched gas into the thawing chamber;
and when the oxygen concentration of the thawing chamber is greater than or equal to a preset concentration threshold value, controlling the inflation system to stop working.
2. The control method according to claim 1, wherein,
executing the step of controlling the inflation system to inflate the oxygen-enriched gas into the thawing chamber when the temperature value sensed by the temperature sensor is greater than or equal to a preset first temperature threshold; wherein, the liquid crystal display device comprises a liquid crystal display device,
the temperature sensor is used for sensing the temperature of the object to be processed.
3. The control method according to claim 2, wherein,
when the temperature value sensed by the temperature sensor is greater than or equal to a preset second temperature threshold, a visual and/or audible signal is sent to a user so as to prompt the user to take out the object to be treated, wherein the first temperature threshold is smaller than the second temperature threshold; wherein, the liquid crystal display device comprises a liquid crystal display device,
the first temperature threshold is-8 to-4 ℃; and/or
The second temperature threshold is-4-0 ℃.
4. The control method according to claim 3, wherein,
after the step of sending visual and/or audible signals to the user is executed, when the preset taking-out time is reached, the heating system is controlled to stop working; and/or
When the temperature value sensed by the temperature sensor is greater than or equal to a preset third temperature threshold value, sending the visual and/or audible signals to a user again, and controlling the heating system to stop working; wherein the third temperature threshold is greater than the second temperature threshold.
5. The control method according to claim 1, wherein,
executing the step of controlling the heating system to work when the falling rate of the temperature value sensed by the temperature sensor is greater than or equal to a preset first rate threshold; and/or
When the rising speed of the temperature value sensed by the temperature sensor is greater than or equal to a preset second speed threshold value, controlling the heating system to stop working; wherein, the liquid crystal display device comprises a liquid crystal display device,
the temperature sensor is used for sensing the temperature of the object to be processed.
6. A heating device, comprising:
a housing defining a thawing chamber for holding an object to be treated;
a heating system configured to provide heat to the thawing chamber to heat the object to be treated;
an inflation system configured to inflate an oxygen-enriched gas into the defrosting chamber to increase an oxygen concentration of the defrosting chamber; and
a controller configured to perform the control method of claim 1.
7. The heating device of claim 6, further comprising:
the defrosting tray is arranged in the defrosting cavity and used for bearing the object to be treated; wherein the heating system comprises:
the heating wire is arranged below the defrosting tray and is used for heating the object to be treated by heating the defrosting tray.
8. The heating device according to claim 7, wherein,
the heating wire is spaced from the defrosting tray; or (b)
The heating wire is arranged on the outer side of the thawing chamber.
9. The heating device of claim 7, further comprising:
the temperature sensor is arranged below the defrosting tray and is used for sensing the temperature of the object to be treated; wherein the method comprises the steps of
The controller is further configured to perform the control method of any of claims 2-5.
10. The heating device of claim 9, wherein,
the heating wire is arranged such that a projection on a horizontal plane surrounds the temperature sensor.
CN202210002591.0A 2022-01-04 2022-01-04 Defrosting control method and heating device Pending CN116420769A (en)

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Citations (3)

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CN105433192A (en) * 2015-11-09 2016-03-30 中国肉类食品综合研究中心 Modified atmosphere thawing device for omophagia seawater fish and thawing method thereof
CN109000397A (en) * 2017-06-06 2018-12-14 青岛海尔股份有限公司 Defreezing method for thawing apparatus
CN111713548A (en) * 2020-05-09 2020-09-29 中国肉类食品综合研究中心 Thawing control method and thawing system

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CN109323515A (en) * 2017-07-31 2019-02-12 青岛海尔智能技术研发有限公司 Control method for thawing apparatus
CN109323521A (en) * 2017-07-31 2019-02-12 青岛海尔特种电冰柜有限公司 Control method for thawing apparatus

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Publication number Priority date Publication date Assignee Title
CN105433192A (en) * 2015-11-09 2016-03-30 中国肉类食品综合研究中心 Modified atmosphere thawing device for omophagia seawater fish and thawing method thereof
CN109000397A (en) * 2017-06-06 2018-12-14 青岛海尔股份有限公司 Defreezing method for thawing apparatus
CN111713548A (en) * 2020-05-09 2020-09-29 中国肉类食品综合研究中心 Thawing control method and thawing system

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