JPH072874U - Thaw cold storage - Google Patents

Abstract

(57) [Abstract] [Structure] Heater 7 and heat exchanger 8 for cooling in case 1
And a first blower 6. The first blower 6 circulates the air in the housing 1 to keep the thawing cold. An ozone water generator 12 and a fog generator 14 are provided outside the housing 1. The ozone water is introduced from the ozone water generator 12 into the fog generator 14. Generates a fog of ozone water. An introduction pipe 17 that connects the fog generator 14 and the housing 1 is provided. The negative pressure generated by the first blower 6 in the housing 1 is used to introduce the mist of ozone water in the mist generator 14 into the housing 1 through the introduction pipe 17.
Air containing mist of ozone water is circulated in the housing 1. [Effect] Thaw can be performed easily in a short time. Prevent food from drying out. Keeps food fresh. Prevents offensive odors. Prevents deterioration and discoloration of food. The storage capacity of food in the refrigerator can be increased.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a defrosting refrigerator used for thawing and keeping frozen frozen foods such as meat and seafood in meat shops, fresh fish stores, supermarkets, other food shops, food processing plants, restaurants and other kitchens. Regarding

[0002]

[Prior art]

 Conventionally, to thaw frozen food, (1) leave the frozen food at room temperature to thaw, (2) thaw the frozen food in running water, or (3) put the frozen food in a cool box and keep it cool. One of the methods is to chill frozen food by circulating cold air near room temperature in the refrigerator. However, in the thawing method (1) that is left at room temperature, the food is easily thawed at room temperature, and the thawing method (2) that uses running water handles frozen foods in running water. It is complicated and troublesome, and the quality of the food may deteriorate due to running water.Therefore, in the method (3) that uses cold air close to normal temperature, body fluid leaching from the food body due to low freshness of the food, that is, drip Occurs, and the food is exposed to air of relatively low humidity, the surface of the food dries, and in any of the above methods (1) to (3), it is contained in the drip or in the food There is a problem that various substances contained in water or cooling water for generating cold air are apt to become unsanitary, such as being decomposed by bacteria and giving off a strange odor. Therefore, there is almost no known defrosting device that can thaw frozen foods while maintaining good hygiene.

On the other hand, as a device capable of keeping cold while maintaining a good hygienic condition, for example, a device described in Japanese Patent Laid-Open No. 20778/1992 is known. In this device, the inside of the cool box is divided into a cooling chamber and a cold air duct communicating with this cooling chamber.Ozone gas is mixed with cold water in a cold water tank provided in the cold air duct to make ozone water, and this ozone water is circulated. A sprinkling nozzle provided in the cold air duct through a ring pump sprays and spreads it toward the cold water tank to sterilize and deodorize the cold air, and also to remove part of the ozone gas that has passed through the cold water in the cold water tank along with the cold air inside the housing It is circulated and acts on the food in the cooling room to disinfect the food.

[0004]

[Problems to be solved by the device]

 However, in the cool box described in JP-A-4-20778 having the above-mentioned conventional structure, since the cold water tank and the ozone generator are housed in the case, the size of the case becomes large, and the food storage volume is increased. However, it has a problem that the maintenance and inspection of the equipment is difficult and the handling of food in the enclosure is restricted because the complicated equipment is installed in the enclosure. ing. In addition, since the food in the cooling room and the ozone water in the cold water tank are both housed in the housing, the food is directly exposed to high-concentration ozone gas, and the strong oxidizing action of ozone strongly oxidizes the food surface. It has a problem that it may be deteriorated or discolored. Further, since no heating means is provided, there is a problem in that the frozen food cannot be heated when it is thawed, and the thawing time cannot be shortened.

The conventional cool box described in Japanese Patent Laid-Open No. 20778/1992 has a structure in which ozone water is vigorously ejected from a water spray nozzle, so that ozone water is ejected into a cool air duct. However, the structure is such that it cannot be sprayed directly into the cooling chamber containing the food.

The present invention has been made in view of the above problems, and is capable of thawing easily in a short time, preventing food from drying, maintaining good freshness of food, and preventing generation of offensive odor. In addition, it is an object of the present invention to provide a thawing cold storage box that can prevent the deterioration and discoloration of food and that has a large food storage capacity in the storage.

[0007]

[Means for Solving the Problems]

 The defrosting refrigerator of the invention according to claim 1 is provided with a heater, a heat exchanger for cooling, and an air circulation device in a heat-insulated casing, and the air circulation device circulates the air in the casing to thaw. In a thawing cold storage for cold storage, an ozone water generator and a fog generator communicating with the ozone water generator to generate a fog of ozone water are provided outside the casing, and the fog generator and the casing are communicated with each other. Is provided, the mist of the ozone water is introduced into the housing through the introduction pipe, and the air containing the mist of the ozone water is circulated in the housing.

The defrosting refrigerator according to claim 2 is the defrosting refrigerator according to claim 1, wherein a blower is provided as an air circulation device in the housing, and the negative pressure generated by the air circulation by the blower is used. A fog of ozone water is introduced into the housing.

According to a third aspect of the invention, there is provided the thaw cold storage box according to the first or second aspect, which is provided with a lead-out pipe that connects the housing and the fog generator.

According to a fourth aspect of the present invention, in the thaw cool box according to the third aspect, the blower is arranged directly in the air flow passage that connects the inside of the mist generator, the introduction pipe, the inside of the housing, and the discharge pipe. After being inserted, the fog of ozone water is introduced into the casing by using the pressure of the blower.

The thaw cool box according to a fifth aspect of the present invention is the thaw cool box according to the first or second aspect, wherein an air discharge port is provided in the housing and an air introduction port is provided in the fog generator. Of.

According to a sixth aspect of the present invention, in the thaw cool box according to the fifth aspect, a blower is inserted in series in an air flow passage that connects the inside of the mist generator, the introduction pipe, and the inside of the case. The fog of ozone water is introduced into the housing by using the pressure of the blower.

A thaw cool box according to a seventh aspect of the present invention is the thaw cool box according to any one of the first to sixth aspects, wherein the ozone concentration of the fog of ozone water is 5 ppm or less. A thaw cool box according to the invention of claim 8 is the thaw cool box according to any one of claims 1 to 7, wherein mist of ozone water is intermittently introduced into the housing.

[0014]

[Action]

 In the thawing cold storage according to claim 1, air adjusted to a temperature optimum for thawing or keeping cold by a heater or a heat exchanger for cooling is circulated in a heat-insulated housing by an air circulation device, and is installed in the housing. The contained food is exposed to circulating air to efficiently perform thawing and cooling.

On the other hand, ozone water of an appropriate concentration is introduced into the fog generator from the ozone water generator to generate a fog of ozone water, and this fog of ozone water is introduced into the housing together with air through an introduction pipe. To do. Then, the air containing the fog of ozone water is circulated in the casing by the air circulation device to maintain the inside of the casing at an appropriate humidity, sterilize the casing and the air inside the casing to deodorize, and food is ozone-depleted. By exposing it to circulating air containing a mist of water, it sterilizes food, keeps it fresh, and keeps it hygienic.

In the thawing cold storage according to claim 2, the air in the housing is circulated by the blower, and the negative pressure generated by this air circulation is used, whereby the fog of the ozone water in the fog generator is naturally generated. Since it is introduced into the housing more abundantly than in the case of diffusion, even if a medium amount of food is inserted into the housing, appropriate humidity and hygiene can be secured in the housing.

In the thaw cool box according to the third aspect, the air in the housing is sent back to the mist generating device via the outlet pipe.

In the thawing cold storage according to claim 4, a large amount of mist of ozone water in the mist generator is introduced into the housing by utilizing the pressure of the blower inserted in the air flow passage. Even if the above food is inserted into the housing, it is possible to secure appropriate humidity and hygiene in the housing.

In the thaw cool box according to the fifth aspect, the air introduced into the housing together with the mist of ozone water is exhausted into the atmosphere from the air discharge port.

In the thaw cool box according to claim 6, a large amount of mist of ozone water in the mist generating device is introduced into the housing by utilizing the pressure of the blower inserted in the air flow passage. Even if the above food is inserted into the housing, it is possible to secure appropriate humidity and hygiene in the housing.

In the thaw refrigerator according to the seventh aspect, the ozone concentration of the fog of ozone water is adjusted to 5 ppm or less, and the ozone concentration is adjusted to a low level, so that the quality of food does not deteriorate or the color does not change.

In the thaw refrigerator according to the eighth aspect, the amount of fog of ozone water can be adjusted over time, so that the food can be kept in an optimum humidity and hygiene state according to the type and amount of the food.

[0023]

【Example】

 An embodiment of the thawing cold storage of the present invention will be described below with reference to FIG.

In FIG. 1, reference numeral 1 denotes a housing, 2 denotes an opening / closing door for loading and unloading food, which is provided on one surface of the housing 1, and the inside of each of the housing 1 and the door 2 is formed of a heat insulating material. The inside of the housing 1 is configured to be thermally insulated from the outside air.

A plurality of shelves 3 are vertically arranged in the housing 1 in a horizontal manner at predetermined intervals, and a plurality of slits 4 are provided at one end of the shelves 3. A guiding partition wall 5 is erected. Further, a first blower 6 as an air circulation device, a heater 7, and a heat exchanger 8 for cooling the cooler are arranged on the uppermost shelf 3a, and the heat exchanger 8 is an outside unit 9 of the cooler. Is connected to the heat exchanger 8 by the pipe 10 so that the refrigerant is sent from the outer case 9 to the heat exchanger 8. Food is placed on the shelves 3b other than the uppermost shelf 3a.

Further, a drainage port 11 is provided at the bottom of the housing 1.

Reference numeral 12 denotes an ozone water generator disposed on the housing 1. The ozone water generator 12 is generated by an ozonizer module (not shown) that uses creeping discharge in air due to high voltage. Ozone gas is dissolved in water such as tap water supplied from the water supply port 13 to generate ozone water. The ozone concentration of ozone water does not exceed 5 ppm by adjusting the mixing ratio of ozone gas and water. Is set.

Reference numeral 14 denotes a fog generator which is communicated with the ozone water generator 12 on the housing 1 and is arranged in the vicinity of the ozone water generator 12. Ozone water is introduced and stored, and by the operation of the ultrasonic transducer 15 arranged so as to be located in the stored ozone water, the fog of ozone water is generated upward from the water surface 16 of the ozone water. Has become.

Further, an introduction pipe 17 is provided so as to communicate between the water surface 16 of the fog generator 14 and the back side of the first blower 6 in the housing 1, and the introduction pipe 17 is provided therebetween. The fog of the ozone water is introduced into the housing 1. The upper end of the introduction pipe 17 is provided so as to be located near the water surface 16. Further, a lead-out pipe 18 is provided so as to connect the back side of the first blower 6 in the housing 1 and the upper portion of the fog generator 14 to each other.

Next, the operation of this embodiment will be described.

As shown by the arrow A, the air is sent between the shelves 3 by the first blower 6, passes through the slits 4, passes through the heater 7 and the heat exchanger 8 for cooling, and is thawed. Or, the temperature is adjusted to the optimum temperature for keeping cold, and circulates in the housing 1. Then, the food (not shown) placed on the shelf 3b is exposed to this circulating air to be thawed and kept cold.

If a second blower 19 is provided in a lower portion between the partition wall body 5 and the housing 1 as needed, the second blower 19 can raise the air above each slit 4 through each slit 4. It is possible to strengthen the delivery to. Further, if necessary, in order to make the air volume circulating between the shelves 3 uniform, the slits 4 may be formed with a vertical width gradient so that the width of the slits 4 located at the lower part becomes larger. Good.

On the other hand, the fog of ozone water having an ozone concentration of 5 ppm or less generated from the water surface 16 of the fog generator 14 is caused by the negative pressure generated by the Pitot tube action generated by the wind speed of the circulating air by the first blower 6 or the like. The air is sucked into the rear side of the blower 5 in the housing 1 together with air through the introduction pipe 17. Next, the air containing the mist of ozone water is drawn into the circulating air and circulated throughout the casing 1 as indicated by the arrow A, the inside of the casing 1 is maintained at an appropriate humidity, the air is sterilized, and deodorized. At the same time, the food is exposed to the circulating air containing fog of ozone water, sterilized, the freshness is kept good, and the hygiene condition is kept good.

The air sucked into the casing 1 together with the mist of ozone water through the introduction pipe 17 is sent back to the upper part of the mist generator 14 through the discharge pipe 18. Further, the mist of ozone water is condensed and the water accumulated at the bottom of the housing 1 is discharged from the drain port 11.

Regarding the temperature control inside the housing, first, the temperature is set to the optimum temperature for thawing by the heater 7 or the heat exchanger 8 for cooling, and the frozen food is thawed for a predetermined time, and after the frozen food is thawed to a predetermined temperature, The heat exchanger 8 sets the optimum temperature for keeping cold and keeps it cold until the food is used. At this time, since the case 1 and the door 2 are both thermally insulated, it is possible to efficiently perform thawing and cooling. Note that the fog of ozone water may be continuously introduced into the housing 1 or intermittently a necessary amount may be introduced throughout the period from thawing to storage. When thawing, if necessary, the cooler may be used as a heat pump and a heater operation for heating the air passing through the heat exchanger 8 may be performed to further shorten the thawing time.

Further, if necessary, in series with an air flow path connecting the inside of the fog generator 14 and the introduction pipe 17, the inside of the housing 1 and the discharge pipe 18, for example, above the introduction pipe 17 of the fog generator 14. Alternatively, the third blower 21 may be provided, and a large amount of mist may be introduced into the housing 1 by utilizing the wind pressure of the third blower 21 other than the first blower 6.

Instead of the outlet pipe 18 of the above-described embodiment, as shown in FIG. 2, an air discharge port 22 is provided at an appropriate position of the housing 1, for example, on the upper surface, and air is supplied to the fog generator 14. An air introduction port 23 for introducing may be provided. In this case, the air sucked into the casing 1 together with the mist of ozone water is discharged into the atmosphere from the air discharge port 22, but the air discharge port 22 is not provided, and the sucked air is discharged to the drain port 11 It may be exhausted from (Fig. 1).

[0038]

[Effect of device]

 According to the first aspect of the present invention, the air containing the mist of ozone water is thawed and kept cold while being circulated in the housing. Therefore, the frozen food is not dried and a good hygienic condition is maintained. It can be thawed in a short time using a heater, etc., and it can be kept cold while maintaining good hygiene without drying the thawed food. In addition, since the ozone water generator and the fog generator are provided outside the housing, it is possible to widen the food storage volume in the housing, greatly improve the utilization efficiency, and use devices such as the ozone water generator. It will be easy to perform maintenance and inspection. In addition, since there is no complicated device such as an ozone water generator in the housing, food can be easily handled. Furthermore, unlike conventional cold storage, food is not directly exposed to ozone gas, so there is no deterioration or discoloration of food due to ozone gas.

According to the second aspect of the present invention, by utilizing the negative pressure generated by the air circulation, the fog of ozone water in the fog generator can be introduced into the housing in abundance more than in the case of natural diffusion. Therefore, even if a medium amount of food is inserted into the housing, it is possible to secure appropriate humidity and hygiene in the housing.

According to the third aspect of the invention, the air in the housing is sent back to the mist generating device via the outlet pipe.

According to the invention of claim 4, a large amount of mist of ozone water in the mist generating device can be introduced into the housing by utilizing the pressure of the blower inserted in the air flow passage. Even if food is inserted into the housing, it is possible to maintain appropriate humidity and hygiene in the housing.

According to the invention of claim 5, the air introduced into the housing together with the mist of the ozone water is exhausted into the atmosphere from the air discharge port.

According to the invention of claim 6, a large amount of mist of ozone water in the mist generating device can be introduced into the housing by utilizing the pressure of the blower inserted in the air flow passage. Even if food is inserted into the housing, it is possible to maintain appropriate humidity and hygiene in the housing.

According to the invention as set forth in claim 7, since the ozone concentration of the fog of ozone water is adjusted to be low, oxidation, deterioration or discoloration of food does not occur.

According to the invention as set forth in claim 8, since the amount of fog of ozone water can be adjusted with time, the food can be kept in an optimum humidity and hygiene state according to the type and amount of the food.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a thawing cold storage box of the present invention.

FIG. 2 is a partial vertical sectional view showing another embodiment.

[Explanation of symbols]

 1 Case 6 First Blower as Air Circulator 7 Heater 8 Heat Exchanger 12 Ozone Water Generator 14 Fog Generator 16 Water Surface 17 Inlet Pipe 18 Outlet Pipe 21 Third Blower as Blower 22 Air Discharge Port 23 Air Inlet mouth

Claims (8)

[Scope of utility model registration request] 1. A thawing cold storage in which a heater, a heat exchanger for cooling, and an air circulating device are provided in a heat-insulated housing, and the air in the housing is circulated by the air circulating device to perform thawing cold storage, An ozone water generator and a fog generator that is in communication with the ozone water generator and generates a fog of ozone water are provided outside the housing, and an introduction pipe that connects the fog generator and the housing is provided. A thawing cold storage, wherein the fog of ozone water is introduced into the housing through a pipe, and air containing the fog of ozone water is circulated in the housing. 2. A fan is provided as an air circulation device in the housing, and the negative pressure generated by the air circulation by the fan is used to introduce the fog of ozone water into the housing. Thaw cool box. 3. The thawing cold storage box according to claim 1, further comprising a lead-out pipe that connects the housing and the fog generator. 4. A blower is inserted in series in an air flow path connecting the inside of the fog generator, the introduction pipe, the inside of the housing, and the discharge pipe,
The thawing cold storage box according to claim 3, wherein a fog of ozone water is introduced into the housing by using the pressure of the blower. 5. The thawing cold storage box according to claim 1, wherein the housing is provided with an air outlet and the fog generator is provided with an air inlet. 6. A blower is inserted in series in an air flow passage connecting the inside of the fog generator, the introduction pipe, and the inside of the housing, and the pressure of the fan is used to introduce the fog of ozone water into the inside of the housing. Thawed cold storage as described in 5. 7. The thawing cold storage box according to claim 1, wherein the ozone concentration of the fog of ozone water is 5 ppm or less. 8. The thawing cold storage box according to claim 1, wherein a fog of ozone water is intermittently introduced into the housing.