CN114777404A - Directional sound wave unfreezing control method and refrigerator - Google Patents
Directional sound wave unfreezing control method and refrigerator Download PDFInfo
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- CN114777404A CN114777404A CN202210196479.5A CN202210196479A CN114777404A CN 114777404 A CN114777404 A CN 114777404A CN 202210196479 A CN202210196479 A CN 202210196479A CN 114777404 A CN114777404 A CN 114777404A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000010257 thawing Methods 0.000 claims abstract description 91
- 238000004321 preservation Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
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Classifications
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- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- 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
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- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/005—Charging, supporting, and discharging the articles to be cooled using containers
-
- 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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
- F25D2400/361—Interactive visual displays
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/16—Sensors measuring the temperature of products
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a directional sound wave unfreezing control method and a refrigerator, and relates to the technical field of unfreezing. It has two unfreezing modes, which are a default mode and a custom mode respectively. When the user selects the default mode: automatically acquiring the temperature of the article to be thawed at the moment through a temperature sensor, displaying the temperature through a display screen, automatically setting the thawing temperature to set a thawing process, and then generating sound waves by a directional sounder to thaw the article to be thawed; when the user selects the custom mode: the user can set the thawing process by setting time or thawing temperature, and then the directional sounder generates sound waves to thaw the goods to be thawed. When the thawing process is completed, the display screen is used for displaying and reminding the user by sending out a prompt tone. The invention can rapidly and uniformly unfreeze by utilizing the directional sound wave with strong directivity and can avoid generating electromagnetic interference. The display screen is convenient for the user to monitor and operate the thawing process.
Description
Technical Field
The invention relates to the technical field of unfreezing, in particular to a directional sound wave unfreezing control method and a refrigerator.
Background
Common thawing methods in life include air thawing, warm water thawing, circulating water thawing, microwave thawing, and the like. Air unfreezing, warm water unfreezing and circulating water unfreezing do not need special unfreezing equipment, and the defrosting method is simple and convenient to operate, but the defrosting speed is low. Microwave thawing utilizes electromagnetic waves to generate a large amount of heat energy to enable food to simultaneously heat from inside to outside, so that the thawing time is shortened extremely quickly, but soluble components in food cells are greatly lost, and the food quality is seriously reduced. At present, most of refrigerator and refrigerator products on the market are provided with the superconducting disc to meet the unfreezing requirement of daily food, the unfreezing efficiency is improved, the refrigerator and refrigerator products are corrosion-resistant, and the service life of the refrigerator and refrigerator products is long.
The traditional thawing method is simple to operate, but has slow heat conduction and longer thawing time, so that bacteria are easily propagated to influence the food quality. Although the thawing speed of the conventional superconducting disk thawing method is improved, the superconducting disk is utilized to thaw unevenly, generally, the thawing speed of the contact surface between food and the superconducting disk is high, and the conventional superconducting disk thawing method can only thaw food with a specific volume and cannot automatically control the thawing temperature of the food, so that the superconducting disk thawing method is inconvenient and practical for users.
Patent document CN109619373B discloses an ultrasonic thawing control method and a refrigerator. The ultrasonic unfreezing control method comprises the following steps: the ultrasonic wave generating module generates an ultrasonic wave signal, and the ultrasonic wave oscillator generates corresponding ultrasonic waves according to the ultrasonic wave signal to unfreeze the object to be treated; acquiring the surface temperature of an object to be processed; and judging whether the surface temperature of the object to be processed is greater than or equal to a preset target temperature, if so, completing the unfreezing of the object to be processed. Patent document CN109619373B generates an ultrasonic signal by an ultrasonic generation module, but because the sound wave thereof uses multiple propagation directions to thaw the object to be processed, although the thawing is more uniform, it causes damage to other electronic devices, even the contact falls off. In addition, the patent document CN109619373B can only operate according to the thawing process preset by the system, but the temperature of the object to be treated after thawing is different, which cannot meet the diversified demands of the user.
Disclosure of Invention
In order to solve the problems, the invention provides a directional sound wave unfreezing control method and a refrigerator, which can avoid the damage of electronic devices, meet the diversified temperature requirements of users and can be intuitively monitored and operated.
In order to solve the technical problems, the invention adopts the following technical scheme:
a directional sound wave unfreezing control method has two unfreezing modes which are respectively a default mode and a custom mode. A, a user selects a default mode or a custom mode according to own requirements; and B, step B: when the user selects the default mode: the temperature of the article to be unfrozen at the moment is automatically acquired through the temperature sensor and is displayed through the display screen, the system automatically sets the unfreezing temperature according to the temperature of the article to be unfrozen at the moment to set the unfreezing process, and then the directional acoustic generator generates sound waves to unfreeze the article to be unfrozen; and C: when the user selects the custom mode: a user can set a thawing process by setting time or thawing temperature according to the self requirement, and then the directional sounder generates sound waves to thaw articles to be thawed; step D: when the thawing process is completed, the thawing process is displayed through the display screen, and the user is reminded by sending out prompt tones.
Furthermore, the temperature of the object to be defrosted is monitored in real time by the temperature sensor in the process of unfreezing and is displayed through the display screen.
Further, in the step D, the display screen displays a word of "thawing completed", and a three-second prompt tone is simultaneously given to remind the user.
Furthermore, after the thawing process is completed, buttons of 'end' and 'heat preservation' are displayed on the display screen, and the user can only select one of the buttons.
Further, when the user selects heat preservation, the directional sounder is turned off, and the temperature sensor monitors the temperature of the goods to be thawed in real time. When the temperature sensor monitors that the temperature of the object to be thawed is reduced, the directional sounders simultaneously operate, when the temperature sensor monitors that the temperature of the object to be thawed returns to the thawing temperature again, the directional sounders simultaneously stop operating, and the process is circularly carried out until the temperature sensor and the directional sounders stop operating after a user clicks an 'end' button.
Further, when the user directly selects "end", the temperature sensor as well as the directional sounder will immediately stop running.
A refrigerator using the directional sound wave defrosting control method according to any one of the above claims, comprising a box body and a defrosting device, wherein the box body is provided with at least one storage space, and the defrosting device is positioned in the storage space. The thawing device comprises a shell, a directional sounder, a temperature sensor, a display screen and a control panel, wherein the directional sounder, the temperature sensor and the display screen are respectively connected with the control panel. The temperature sensor is an infrared temperature measuring sensor, and the display screen is a touch display screen. The casing is in a square box shape with an opening at the front side, the center of the inner bottom wall of the casing is fixedly connected with a square unfreezing plate, and the emission direction of each directional sounder faces to the center of the unfreezing plate. The directional sounders are provided with a plurality of directional sounders which are respectively fixedly embedded into the left inner wall, the right inner wall and the rear inner wall of the shell.
The invention has the beneficial effects that: the directional sounders with super-strong directivity are adopted to generate sound waves, the distance and the range of sound wave propagation can be controlled, and each directional sounder generates an independent sound source aiming at an independent area and a target body, so that the directional sounders are not interfered with each other and cannot damage electronic devices such as a refrigerator. The infrared temperature measurement sensor is used for measuring the temperature of the object to be thawed, the temperature resolution is high, the response speed is high, and the temperature distribution field of the measured target cannot be disturbed. The touch display screen can select the functional mode through touch operation, so that a user can conveniently monitor and operate the unfreezing process.
Drawings
FIG. 1 is a control flow chart of the present invention.
Fig. 2 shows an embodiment of the present invention.
Fig. 3 shows another embodiment of the present invention.
Detailed Description
The invention discloses a directional sound wave unfreezing control method and a refrigerator, and an embodiment of the invention is specifically described below with reference to the accompanying drawings.
A refrigerator comprises a box body and a thawing device 1, wherein at least one storage space is arranged in the box body, and the thawing device 1 can be adaptively placed in the storage space. The thawing device 1 comprises a shell 2, a directional sounder 3, an infrared temperature measuring temperature sensor, a touch display screen and a control panel, wherein the directional sounder 3, the temperature sensor and the display screen are respectively connected with the control panel. The shell 2 is in a square box shape with an opening at the front side, a square unfreezing plate 4 is fixedly connected to the center of the inner bottom of the shell, and an object to be unfrozen is placed on the unfreezing plate 4 to be unfrozen. The directional sounders 3 are provided with a plurality of parts which are respectively embedded into the left inner wall, the right inner wall and the rear inner wall of the housing 2. The infrared temperature measuring sensor is fixed on the inner top wall of the shell 2. The touch display screen is fixed on the front side of the box body shell 2.
As shown in fig. 2, the larger the number of directional sound generators 3 placed in the thawing apparatus 1, the more directional sound waves they emit, and therefore the time required for thawing is reduced accordingly. The thawing device 1 can be provided with four directional sounders 3, the left inner wall and the right inner wall of the thawing device 1 are respectively provided with one, and the rear inner wall is provided with two directional sounders 3 which are transversely and uniformly arranged. When the thawing device 1 starts to start, the four directional sounders 3 emit sound waves along respective directions by taking the center of the thawing plate 4 as a target line, and the directional sounders 3 achieve the purpose of thawing objects by using the vibration of specific frequency of the sound waves and the heating principle thereof.
In addition to the above embodiments, another embodiment of the present invention is as follows as shown in fig. 3. Twelve directional sounders 3 are arranged in the thawing device 1, four directional sounders 3 are respectively embedded and fixed at four corners of the left inner wall, the right inner wall and the rear inner wall of the shell 2, and the thawing duration is reduced by increasing the number of the directional sounders 3. It is noted that the number and the position of the directional sounders 3 are arbitrary and that the above-mentioned number and position of the directional sounders 3 are not limiting for the invention.
A directional sound wave unfreezing control method comprises the following steps: as shown in fig. 1, an article to be thawed is placed in the thawing apparatus 1, and a thawing start key of the touch display screen is clicked, at this time, two buttons pop up from the display screen, and the two buttons are respectively in a default mode and a custom mode.
When a user clicks the default mode, the control panel firstly starts the infrared temperature measuring sensor to monitor the temperature of the current object to be unfrozen and displays the temperature through the display screen. The control panel automatically sets the thawing temperature through the current temperature of the goods to be thawed, the thawing temperature is the optimal storage temperature after the goods to be thawed is thawed, and then the directional sounder 3 is started by the control panel to start running. The plurality of directional acoustic generators 3 take the center of a thawing plate 4 for placing the goods to be thawed as a target point, and eliminate ice and frost of the goods to be thawed by using the acoustic wave with specific frequency and the heating principle of the acoustic wave. And the infrared temperature measurement sensor monitors the temperature of the object to be thawed in real time in the thawing process and displays the temperature through the touch display screen. When the infrared temperature measuring sensor monitors that the temperature of the object to be thawed reaches the thawing temperature automatically set by the control panel, a dialog box pops up on the touch display screen, and a buzzer sends out a prompt tone for three seconds to remind a user of timely treatment. The upper side of the dialog box displays a word of 'unfreezing completion', the lower side of the dialog box is provided with two buttons, the two buttons are respectively displayed as 'ending' and 'heat preservation', and a user can flexibly select and only select one of the buttons according to actual conditions. When the user selects the 'heat preservation' button, the directional sounder 3 stops running, and the infrared temperature measuring sensor continues to monitor the temperature of the goods to be thawed in real time. Once the infrared temperature measuring sensor monitors that the temperature of the object to be thawed drops, all the directional sounders 3 run simultaneously, all the directional sounders 3 stop running simultaneously when the temperature reaches the optimal storage temperature again, and the process is circulated until a user clicks an 'end' button, and the infrared temperature measuring sensor and the directional sounders 3 stop running; when the user directly selects the "end" button, the infrared temperature measuring sensor and the directional sounder 3 will stop operating immediately.
When the user clicks the custom mode, the user can set the thawing progress according to the thawing time or the thawing temperature.
When the thawing time is defined, a user sets a certain thawing duration according to the self requirement, and then the directional sounder 3 starts to send out sound waves while the infrared temperature measuring sensor monitors the temperature of the object to be thawed in real time and displays the temperature through the touch display screen. After a certain thawing duration is finished, a dialog box pops up on the touch display screen, and a buzzer sends out a prompt tone for three seconds to remind a user of timely processing. The upper side of the dialog box displays a word of 'unfreezing completion', the lower side of the dialog box is provided with two buttons, the two buttons are respectively displayed as 'ending' and 'heat preservation', and a user can flexibly select one of the buttons according to actual conditions. When the user selects the 'heat preservation' button, the directional sounder 3 stops running, and the infrared temperature measuring sensor continues to monitor the temperature of the object to be thawed in real time. Once the infrared temperature measuring sensor monitors that the temperature of the object to be thawed drops, all the directional sounders 3 run simultaneously, all the directional sounders 3 stop running simultaneously when the temperature reaches the optimal storage temperature again, and the process is circulated until a user clicks an 'end' button, and the infrared temperature measuring sensor and the directional sounders 3 stop running; when the user directly selects the 'end' button, the infrared temperature measuring sensor and the directional sounder 3 stop operating immediately.
When the setting is defined according to the thawing temperature, the user obtains the temperature of the object to be thawed at the moment by touching the display screen, sets the thawing temperature, and then the directional sounder 3 starts to operate. When the infrared temperature sensor monitors that the temperature of the object to be thawed reaches the thawing temperature set by the user, the thawing process is completed. After the thawing process is completed, a dialog box pops up on the touch display screen, and a buzzer sends out a three-second prompt tone to remind a user of timely processing. The upper side of the dialog box displays a word of 'unfreezing completion', the lower side of the dialog box is provided with two buttons, the two buttons are respectively displayed as 'ending' and 'heat preservation', and a user can flexibly select and only select one of the buttons according to actual conditions. When the user selects the 'heat preservation' button, the directional sounder 3 stops running, and the infrared temperature measuring sensor continues to monitor the temperature of the goods to be thawed in real time. Once the infrared temperature measuring sensor monitors that the temperature of the object to be thawed drops, all the directional sounders 3 run simultaneously, all the directional sounders 3 stop running simultaneously when the temperature reaches the optimal storage temperature again, and the process is circulated until a user clicks an 'end' button, and the infrared temperature measuring sensor and the directional sounders 3 stop running; when the user directly selects the "end" button, the infrared temperature measuring sensor and the directional sounder 3 will stop operating immediately.
The beneficial effects of the invention are: thawing apparatus 1 has adopted directional vocal ware 3, utilizes the specific frequency vibrations of directional sound wave and heating principle to eliminate the ice and the frost of waiting to unfreeze the article, compares in traditional thawing mode, and thawing apparatus 1 thawing speed is fast and can fully pin the nutrient composition of waiting to unfreeze the article. Thawing apparatus 1 can accelerate thawing speed, evenly unfreeze to can keep original taste and the nutrient composition of food, utilize directional sound wave to unfreeze and can prevent to disturb the electromagnetic field of electronic product self, and the process of unfreezing can independently be controlled.
It is noted that, in the present invention, the terms "connected", "fixed", and the like are to be construed broadly unless otherwise explicitly specified or limited; the terms such as "front", "back", "left", "right", "top", "bottom", "center", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only terms determined for convenience of describing structural relationships of the components of the present invention, are not intended to refer to any components of the present invention, and should not be construed as limiting the present invention.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make various changes, modifications, additions and substitutions within the spirit and scope of the present invention.
Claims (7)
1. A directional sound wave unfreezing control method is characterized by comprising the following steps: the method comprises two unfreezing modes, namely a default mode and a custom mode;
a, a user selects a default mode or a custom mode according to own requirements;
and B, step B: when the user selects the default mode: the temperature of the object to be thawed is automatically obtained through the temperature sensor and displayed through the display screen, the system automatically sets the thawing temperature according to the temperature of the object to be thawed to set a thawing process, and then the directional sounder (3) generates sound waves to thaw the object to be thawed;
and C: when the user selects the custom mode: the user can set the thawing process by setting time or thawing temperature according to the self requirement, and then the directional sounder (3) generates sound waves to thaw the object to be thawed;
step D: when the thawing process is completed, the display screen is used for displaying and reminding the user by sending out a prompt tone.
2. The directional acoustic wave thawing control method of claim 1, wherein: the temperature sensor monitors the temperature of the object to be thawed in real time in the thawing process and displays the temperature through the display screen.
3. The directional acoustic wave thawing control method of claim 1, wherein: and D, displaying the words of 'unfreezing completion' on the display screen, and simultaneously sending out a three-second prompt tone to remind the user.
4. The directional acoustic wave thawing control method according to claim 3, wherein: after the thawing process is completed, buttons of 'end' and 'heat preservation' are displayed on the display screen, and the user can only select one of the buttons.
5. The directional acoustic wave thawing control method according to claim 4, wherein: when the user selects heat preservation, the directional sounder (3) is turned off, and the temperature sensor monitors the temperature of the goods to be thawed in real time;
when the temperature sensor monitors that the temperature of the object to be thawed is reduced, all the directional sounders (3) run simultaneously, when the temperature sensor monitors that the temperature of the object to be thawed returns to the thawing temperature again, all the directional sounders (3) stop running simultaneously, and the process is circulated until a user clicks an 'end' button, and the temperature sensor and the directional sounders (3) stop running.
6. The directional acoustic wave thawing control method of claim 4, wherein: when the user directly selects 'end', the temperature sensor and the directional sounder (3) will immediately stop running.
7. A refrigerator using the directional acoustic wave defrosting control method according to any one of the preceding claims 1 to 6, comprising a box having at least one storage space and a defrosting device (1), the defrosting device (1) being located in the storage space, characterized in that: the thawing device (1) comprises a shell (2), a directional sounder (3), a temperature sensor, a display screen and a control panel, wherein the directional sounder (3), the temperature sensor and the display screen are respectively connected with the control panel;
the temperature sensor is an infrared temperature measuring sensor, and the display screen is a touch display screen;
the casing (2) is in a square box shape with an opening at the front side, the center of the inner bottom wall of the casing is fixedly connected with a square unfreezing plate (4), and the emission direction of each directional sounder (3) faces to the center of the unfreezing plate (4);
the directional sounders (3) are provided with a plurality of parts which are respectively fixedly embedded into the left inner wall, the right inner wall and the rear inner wall of the shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210196479.5A CN114777404A (en) | 2022-03-02 | 2022-03-02 | Directional sound wave unfreezing control method and refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210196479.5A CN114777404A (en) | 2022-03-02 | 2022-03-02 | Directional sound wave unfreezing control method and refrigerator |
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| CN114777404A true CN114777404A (en) | 2022-07-22 |
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| CN202210196479.5A Pending CN114777404A (en) | 2022-03-02 | 2022-03-02 | Directional sound wave unfreezing control method and refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115164486A (en) * | 2022-08-04 | 2022-10-11 | 珠海格力电器股份有限公司 | Heating device, refrigerator and heating control method |
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| CN207885597U (en) * | 2017-09-25 | 2018-09-21 | 中标能效科技（北京）有限公司 | Ultrasonic wave thawing equipment and refrigerator |
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| CN112203525A (en) * | 2018-06-13 | 2021-01-08 | 夏普株式会社 | Frozen sushi suit |
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| CN115164486A (en) * | 2022-08-04 | 2022-10-11 | 珠海格力电器股份有限公司 | Heating device, refrigerator and heating control method |
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Application publication date: 20220722 |