Cooling device
A cooling device and a cooled technology, which is applied in the direction of cooling fluid circulation devices, household refrigeration devices, coolers, etc., can solve the problem of lowering the quality of items, and achieve the effect of high-efficiency supercooling
Inactive Publication Date: 2020-01-24
DAIKIN IND LTD
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Problems solved by technology
The damage of such cell tissue causes condensation during freezing and dripping during thawing, which leads to a decrease in the quality of the product.
Method used
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Embodiment Construction
[0041] One embodiment of the cooling device of the present invention will be described with reference to the drawings.
[0042] In addition, the following embodiment is just a specific example of this invention, and does not limit the technical scope of this invention. The following embodiments can be appropriately modified within a range not departing from the gist of the present invention.
[0043] (1) Overall structure
[0044] The cooling device 100 according to one embodiment of the present invention is a cooling device for cooling objects M such as food. The cooling device 100 is a device capable of cooling the object M to be cooled in the supercooling region by cooling the object M while irradiating electromagnetic waves to the object M.
[0045] The cooling device 100 is used, for example, in commercial large refrigerators. However, it is not limited thereto, and the cooling device 100 may also be used in a refrigerated container for transportation or a refrigerator...
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Provided is a cooling device which cools an object to be cooled while internally generating heat using an electromagnetic wave, and is capable of efficiently supercooling the object to be cooled. Thecooling device is equipped with a freezer for cooling the object to be cooled, an electromagnetic wave radiation unit which emits an electromagnetic wave at the object to be cooled in order to internally heat the object to be cooled, and is capable of varying the frequency of the emitted electromagnetic wave, and a control unit which controls the operation of the freezer and the electromagnetic wave radiation unit, and performs a supercooling operation for cooling the object to be cooled using the freezer while radiating the object to be cooled with the electromagnetic wave. In addition, the control unit determines the supercooling operation frequency, which is the frequency of the electromagnetic wave with which the object to be cooled is irradiated by the electromagnetic wave radiation unit during the supercooling operation, and in order to do so, performs a preliminary operation for controlling the electromagnetic wave radiation unit so as to switch the frequency of the electromagnetic wave emitted by the electromagnetic wave radiation unit, and subject the object to be cooled to radiation by electromagnetic waves of a plurality of frequencies. The control unit controls the electromagnetic wave radiation unit so as to emit an electromagnetic wave during the supercooling operation at the supercooling operation frequency determined during the preliminary operation.
Description
technical field [0001] The present invention relates to a cooling device for cooling an object to be cooled in a supercooling region by cooling the object to be cooled while irradiating electromagnetic waves. Background technique [0002] It is well known that when freezing food and other items, if water freezes to form ice crystals, the cell tissue constituting the item will be damaged. Such damage to the cellular tissue causes condensation during freezing and dripping during thawing, resulting in a decrease in the quality of the article. It is known that when an article is frozen, damage to the cell tissue of the article is more pronounced the slower the passage of the temperature zone called the maximum ice crystal formation zone where ice crystals are likely to grow to the maximum. [0003] In order to shorten the passage time of the maximum ice crystal formation zone and suppress damage to the cell tissue of the article, as in Patent Document 1 (Japanese Patent Applica...
Claims
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IPC IPC(8): F25D11/00F25D11/02
CPCA23B4/01A23B4/06A23L3/01A23L3/36F25D23/12F25D29/00F25D31/005F25D2700/16
Inventor 稻田良造冨田千晴水谷和秀伊能利郎
Owner DAIKIN IND LTD