CN211503381U - Unfreezing refrigerator capable of quickly and uniformly unfreezing and keeping freshness - Google Patents
Unfreezing refrigerator capable of quickly and uniformly unfreezing and keeping freshness Download PDFInfo
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- CN211503381U CN211503381U CN202020044338.8U CN202020044338U CN211503381U CN 211503381 U CN211503381 U CN 211503381U CN 202020044338 U CN202020044338 U CN 202020044338U CN 211503381 U CN211503381 U CN 211503381U
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Abstract
The utility model discloses a thawing refrigerator for rapid and uniform thawing and fresh keeping, which comprises a box body and a thawing chamber arranged in the box body, wherein the thawing chamber is provided with a temperature sensor and an ultrasonic generator which are electrically connected with a controller; the unfreezing chamber is communicated with a cold air duct of the refrigerator, and a valve electrically connected with the controller is arranged at an air inlet of the cold air duct of the unfreezing chamber. The utility model can improve the convenience of using frozen food materials, shorten the thawing waiting time and keep fresh after thawing, thereby improving the thawing quality of the food materials; the bottleneck problems of bacterial breeding, uneven thawing, long thawing time, non-freshness preservation and the like in the prior thawing technical means are reduced.
Description
Technical Field
The utility model relates to a refrigeration technology field especially relates to a daily domestic refrigerator that unfreezes that can unfreeze fast, evenly and keep fresh.
Background
Currently, most users put food in a freezer of a refrigerator for low-temperature freezing preservation in order to facilitate long-term storage of food materials. However, when the food material needs to be used, a large amount of waiting time is consumed in the thawing process, and additional space or devices are required for thawing, which affects the user experience. The traditional unfreezing technology comprises modes such as air unfreezing, warm water unfreezing and running water unfreezing, and the unfreezing modes have the problems of long unfreezing time, easy bacterial breeding and the like. Modern technologies comprise modes of microwave thawing, radio frequency thawing, electric field thawing and the like, but the phenomena of uneven thawing and easy occurrence of local curing exist. In addition, if the thawed food material is forgotten by a user and is not eaten in time, the temperature of the food material will gradually rise to breed bacteria, and the freshness of the food material cannot be kept.
The low-frequency ultrasonic thawing technology is characterized in that the attenuation of energy generated by the thermal effect of low-frequency ultrasonic waves in frozen tissues is greatly higher than the principle of thawed tissues, so that the interface of a frozen layer and a thawing layer inside a material becomes a main energy absorption part, the frequency and the intensity of the low-frequency ultrasonic waves can be adjusted, the thermal effect generated by the attenuation of the low-frequency ultrasonic waves is stabilized near a freezing point, the thawing process can be continuously carried out along with the propelling of the frozen interface and the thawing interface of the material, the local high temperature generated inside the food material is avoided, and the rapid and stable thawing of the material is realized.
Therefore, how to apply the ultrasonic thawing technology to a daily household refrigerator overcomes the defects that the conventional thawing process is not uniform and the local ripening phenomenon is easy to occur; reducing the time required for thawing and ensuring the freshness of food materials, improving the quality of the thawed food materials and associating the refrigerator with thawing, and strengthening the functionality of the refrigerator is a very concern in the industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that the thawing process of the existing household refrigerator is not uniform, and the local cooking phenomenon is easy to occur; the problem that the thawing time is long and the food can not be kept fresh is solved, and the thawing refrigerator capable of thawing quickly and uniformly and keeping fresh is provided.
The utility model provides a thawing refrigerator, which comprises a box body, wherein a thawing chamber is arranged in the box body, and is provided with an ultrasonic generator connected with a controller; the defrosting chamber is communicated with the cold air channel of the refrigerator, and a valve connected with the controller is arranged at an air inlet of the cold air channel of the defrosting chamber; and opening the valve to control the air outlet temperature of the thawing chamber within the fresh temperature range.
Further, the ultrasonic generator is a low-frequency ultrasonic generator.
Furthermore, the bottom of the thawing chamber is provided with a rotating disc and/or a weighing device.
Furthermore, a voice input device connected with the controller is arranged on the refrigerator door surface.
Furthermore, a thawing temperature curve for thawing various food materials is set in the controller.
Furthermore, a control gear of the output power of the ultrasonic generator is arranged in the controller.
Furthermore, the emission frequency of the ultrasonic generator is 18 kHz-100 kHz.
Further, the ultrasonic generator preferably emits at a frequency of 20kHz to 50 kHz.
The utility model discloses in being applied to daily domestic refrigerator with ultrasonic wave thawing technique, through setting up the room of thawing between walk-in and freezer to wherein set up temperature sensor and low frequency supersonic generator, with the cold wind channel intercommunication of room and refrigerator of thawing, be equipped with the valve of being connected with the controller at the air intake of the cold wind channel of room of thawing. The valve is opened to control the air outlet temperature of the thawing chamber within the fresh temperature range. And a thawing temperature curve for thawing various food materials and an output power gear of the low-frequency ultrasonic generator are also arranged in the refrigerator controller. The utility model can remarkably improve the convenience of using frozen food materials by users, shorten the thawing waiting time and keep the food materials fresh, and improve the thawing quality of the food materials; the bottleneck problems of bacterial breeding, uneven unfreezing, long unfreezing time, incapability of keeping food fresh and the like in the conventional unfreezing technical means are solved; meanwhile, the refrigerator can have the functions of freezing, unfreezing and refreshing at the same time.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 for thawing at variable temperature;
fig. 3 is a schematic diagram of the temperature-varying thawing control process of the present invention.
Detailed Description
As shown in fig. 1 and fig. 2, the embodiment of the present invention provides an unfreezing refrigerator, which includes: the refrigerator includes a cabinet 1, a refrigerating chamber 2 and a freezing chamber 4 provided in the cabinet 1. And a thawing chamber 3 is provided between the refrigerating chamber 2 and the freezing chamber 4. The top of the inner cavity of the thawing chamber 3 is provided with a temperature sensor 10 and a low-frequency ultrasonic generator 11 which are connected with a controller. The thawing chamber 3 is communicated with a cold air duct 12 of the refrigerator, and an air inlet 8 of the thawing chamber 3 is provided with a valve connected with a controller. This valve can be based on the temperature change of the interior of thawing chamber 3 and open or close, and when eating the material and unfreeze and accomplish, if the material of eating that unfreezes does not in time take out edible, the temperature in thawing chamber 3 will rise gradually, and the high temperature will make the material of eating that unfreezes breed the bacterium. In order to prevent food from being rotten, the controller opens a valve at the air inlet 8 of the thawing chamber 3 to input cold air into the refrigerator, so that the air outlet temperature of the thawing chamber 3 is kept within the fresh-keeping temperature range. The emission frequency of the low frequency ultrasonic wave generator 11 may be 18kHz to 100kHz, and preferably the emission frequency is 20kHz to 50 kHz. The bottom of the thawing chamber 3 is provided with a rotating disc and/or weighing device 9. The controller inputs thawing temperature curves for thawing various food materials. The optimal values of the thawing temperature curves are obtained by a large number of experiments in the early stage, and the optimal values are led into a storage system of the refrigerator before the refrigerator leaves a factory. Different gears of the output power of the low-frequency ultrasonic generator 11 are arranged in the controller. Because sample size, the kind that needs the unfreeze are different, can set up multiple power output's gear quantity, and this embodiment is established to five grades: 121W to 144W, 97W to 120W, 73W to 96W, 47W to 72W or 24W to 48W. When thawing is needed, a user can place food materials to be thawed in the rotating disc in the thawing chamber 3 and the container 7 on the weighing device 9 according to needs, and the weighing device can transmit the weight of the food materials to the controller. Then, information such as the type or variety of the food material is input, and the controller selects a suitable thawing temperature curve and the output power of the low-frequency ultrasonic generator 11 according to the type and weight of the food material, so that the food material can be thawed quickly and with high quality. Various input modes of relevant conditions and start and stop of equipment can be set on an operation panel of a refrigerator door surface, for example, a voice receiving device is arranged and electrically connected with a controller, information such as the type or variety of food materials to be thawed is input firstly, and then the information such as the weight of the food materials is input, so that the food materials can be thawed quickly. Various key input methods can also be arranged.
Referring to fig. 1 to 3, the present invention further provides a thawing control method for a thawing refrigerator, comprising the following steps:
1: initially, the food material to be thawed is placed in the receptacle 7 on the rotating disc and weighing device 9 of the thawing chamber 3 and the type of thawed food material is spoken into. The controller automatically selects the output power of the low-frequency ultrasonic generator, a thawing temperature curve, and a thawing completion temperature T1 and an air outlet temperature T2 of the thawing chamber. The setting range of the thawing completion temperature T1 can be 0-100C. In this embodiment, the selected thawing completion temperature T1 is 0-20C. The setting range of the air outlet temperature T2 can be 0-100C. In this embodiment, the set air-out temperature T2 is 4-60C. Or inputting the type of the frozen food material first and then inputting the weight of the food material.
2: and (4) unfreezing, wherein a valve 8 of a cold air duct 12 of the unfreezing chamber 3 is closed, a low-frequency ultrasonic generator 11 is started for unfreezing, and a rotating disc is controlled to rotate. The rotating disc can be rotated to enable the low-frequency ultrasonic waves to be uniformly absorbed by the food materials, so that the purpose of uniform temperature distribution in the food materials is achieved. When the temperature sensor 10 detects that the temperature of the thawing chamber 3 is equal to or greater than the set thawing completion temperature T1, the controller controls the low-frequency ultrasonic generator 11 to stop thawing, the valve 8 of the cold air duct 12 is opened, and the rotating disc stops rotating.
3: and (3) fresh-keeping, namely after the valve 8 of the cold air duct 12 is opened, controlling the opening degree of the valve 8 to keep the air outlet temperature T2 of the thawing chamber 3 within a set range so as to refrigerate and preserve the thawed food materials. Therefore, bacteria can be prevented from breeding after the food materials are thawed, and freshness of the food materials before use is guaranteed.
The utility model applies the low-frequency ultrasonic thawing technology to the daily household refrigerator, which can remarkably improve the convenience of using frozen food materials by users, shorten the thawing waiting time and keep the food materials fresh before eating, thereby improving the quality of the food materials; the bottleneck problems of bacterial breeding, uneven unfreezing, long unfreezing time, incapability of keeping food fresh and the like in the conventional unfreezing technical means are solved; meanwhile, the refrigerator can have the functions of freezing, unfreezing and refreshing at the same time.
The above embodiments are only for illustrating the concept of the present invention, and those skilled in the art can make various modifications and changes under the concept of the present invention, and these modifications and changes are included in the protection scope of the present invention.
Claims (8)
1. The thawing refrigerator comprises a refrigerator body and is characterized in that a thawing chamber is arranged in the refrigerator body, and is provided with an ultrasonic generator connected with a controller; the thawing chamber is communicated with a cold air duct of the refrigerator, and the cold air duct of the thawing chamber is provided with a valve connected with the controller.
2. The thawing refrigerator according to claim 1, wherein the ultrasonic generator is a low frequency ultrasonic generator.
3. The thawing refrigerator as claimed in claim 1, wherein a rotating disk and/or a weighing device is provided at the bottom of the thawing compartment.
4. The thawing refrigerator according to claim 1, wherein a voice input device connected to the controller is provided on a door surface of the refrigerator.
5. The thawing refrigerator as claimed in claim 1, wherein a thawing temperature profile for thawing a plurality of food materials is provided in the controller.
6. The thawing refrigerator as claimed in claim 1, wherein a control gear of the output power of the ultrasonic generator is provided in the controller.
7. The thawing refrigerator according to claim 1, wherein the ultrasonic generator has a transmission frequency of 18kHz to 100 kHz.
8. The thawing refrigerator according to claim 7, wherein said ultrasonic generator preferably emits at a frequency of 20kHz to 50 kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020044338.8U CN211503381U (en) | 2020-01-09 | 2020-01-09 | Unfreezing refrigerator capable of quickly and uniformly unfreezing and keeping freshness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020044338.8U CN211503381U (en) | 2020-01-09 | 2020-01-09 | Unfreezing refrigerator capable of quickly and uniformly unfreezing and keeping freshness |
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| CN211503381U true CN211503381U (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020044338.8U Active CN211503381U (en) | 2020-01-09 | 2020-01-09 | Unfreezing refrigerator capable of quickly and uniformly unfreezing and keeping freshness |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076480A (en) * | 2020-01-09 | 2020-04-28 | 珠海格力电器股份有限公司 | Thawing refrigerator capable of thawing quickly and uniformly and keeping freshness and thawing control method thereof |
| CN113915892A (en) * | 2021-05-10 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and sterilization control method |
| CN114739085A (en) * | 2022-04-18 | 2022-07-12 | 安徽省万爱电器科技有限公司 | Refrigerator with auxiliary unfreezing function and control method thereof |
| WO2023169417A1 (en) * | 2022-03-09 | 2023-09-14 | 青岛海尔电冰箱有限公司 | Refrigerator and control method for ultrasonic treatment apparatus thereof |
-
2020
- 2020-01-09 CN CN202020044338.8U patent/CN211503381U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076480A (en) * | 2020-01-09 | 2020-04-28 | 珠海格力电器股份有限公司 | Thawing refrigerator capable of thawing quickly and uniformly and keeping freshness and thawing control method thereof |
| CN113915892A (en) * | 2021-05-10 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and sterilization control method |
| WO2023169417A1 (en) * | 2022-03-09 | 2023-09-14 | 青岛海尔电冰箱有限公司 | Refrigerator and control method for ultrasonic treatment apparatus thereof |
| CN114739085A (en) * | 2022-04-18 | 2022-07-12 | 安徽省万爱电器科技有限公司 | Refrigerator with auxiliary unfreezing function and control method thereof |
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