JP6559305B2 - Temperature control device - Google Patents

Description

  The present invention relates to a temperature management device and a temperature management method for managing a temperature management object such as food at a predetermined temperature.

Conventionally, “refrigerators” have been used to store foods such as meat, fish and vegetables, which are temperature management objects that require temperature management, in a fresh state (for example, Patent Document 1).
In general, food is less likely to change as it is stored at a lower temperature. Therefore, the freshness of the food is ensured by lowering the temperature in the “refrigerator”.

However, the following problems have arisen when the refrigerator is cooled.
That is, 70% to 80% of the food, for example, meat and seafood, and 80% to 90% or more of the fruits and vegetables, so when the refrigerator is cooled to cool the food, the water is solid. It turns into ice.
When water becomes ice, the volume expands and large ice crystals form in the cells of the food, which destroys the cells and freezes them in that state.

After that, when it is taken out of the refrigerator and thawed, the moisture from the broken cells flows out, and the taste components and nutrients are lost along with the moisture, and the texture of the food itself becomes worse.
The temperature at which water turns into ice crystals is called the freezing point. If the freezing point is 0 ° C if it is pure water, the freezing point tends to decrease as the concentration increases. .

In the case of food, since amino acids, minerals and the like are dissolved in the water, the freezing point of the food varies depending on the food, but is in the range of, for example, -1 ° C to -5 ° C.
In addition, the temperature zone in which the ice crystals (freeze) are generated is called the “maximum ice crystal formation zone”, and the longer the ice is stored in this temperature zone, the larger the ice crystals are.
Therefore, conventionally, attempts have been made to adjust the temperature in the “refrigerator” so as to avoid the temperature zone of the “maximum ice crystal formation zone”.

JP 2004-225938 A

  However, if the temperature in the “refrigerator” is set high so that icing does not occur inside the temperature controlled object such as food, it will not be the temperature that maintains the freshness of food, etc., so the momentum temperature is set low. As a result, there was a problem that icing was formed in the food.

  Then, an object of this invention is to provide the temperature management apparatus which can maintain quality, such as the freshness of a temperature management target object, preventing generation | occurrence | production of the frozen thing in temperature control target objects, such as a foodstuff.

  According to the present invention, the subject is a storage unit that stores a temperature management object, a basic cold air generation unit that generates basic cold air that is cooler than a target temperature, and the basic cold air that is the temperature management target. A cold air temperature changing unit that uses a target temperature of about 0 ° C. that is higher than the freezing temperature of the object and that is suitable for storage, and a crushed ice that produces crushed ice and supplies the crushed ice to the cold air temperature changing unit A first air blowing unit that sends the basic cold air generated by the basic cold air generating unit to the cold air temperature changing unit, and the target temperature cold air generated by the cold air temperature changing unit is sent and filled in the housing unit A second air blowing unit, and the cold air temperature changing unit includes a heat exchanger in which an ice breaking space through which the ice break supplied from the ice breaking unit passes is formed, and the first air blowing unit The basic cold air sent from Serial is solved by a temperature management apparatus characterized by generating the target temperature cool air by contact with the crushed ice present in the crushed ice passing space.

  According to the temperature management device of the present invention, the cold air temperature changing unit sets the basic cold air generated by the basic cold air product as the target temperature cold air. The target temperature cold air is higher than the freezing temperature of the temperature management object and is a target temperature of about 0 ° C., which is an appropriate temperature for storage. In addition, it can be stored properly while maintaining the quality of food and the like without generating freezing.

  The cold air temperature changing unit has a heat exchanger. Inside the heat exchanger, there is formed an ice break passage space through which the ice break supplied from the ice break section passes. The basic cold air comes into contact with the ice present in the crushed ice passage space of the heat exchanger, and becomes the target temperature cold air with the target temperature changed to about 0 degrees Celsius. In addition, as the ice melts and the melted water is vaporized, steam or the like is filled in the housing part, and the inside of the housing part becomes a high-density space environment with an internal temperature of about 0 ° C. and a relative humidity of about 100%. . Since foods and the like arranged in the storage unit contain nutrients such as amino acids and minerals, the moisture of the foods does not freeze at about 0 ° C., and no icing matter is generated inside the foods. Thereby, the quality of food etc. can be maintained by managing foodstuff etc. at about 0 degreeC.

  In this way, since foods and the like are stored in an environment of about 0% Celsius and a relative humidity of about 100%, the entire surface from the surface of the foods etc. to the central part is uniformly managed at about 0 ° C. Become. Therefore, the foods and the like arranged in the storage unit can be stored at about 0 ° C. as a whole without generating icing in the foods and the like. Thereby, the quality can be ensured.

  In addition, since the ice melts and the melted water vaporizes, the evaporated water becomes fine particles. Therefore, for example, there is no adhesion of condensed water such as water droplets on the food stored in the storage unit, for example, in the metal wall or the storage unit, and the food can be stored with high quality.

  Moreover, since the foodstuff currently arrange | positioned in an accommodating part can be preserve | saved at about 0 degreeC whole, since the proliferation of bacteria can be suppressed in the whole foodstuff, it can preserve | save very hygienically.

  In addition, since the ice melts and the melted water vaporizes, there are devices that generate heat in the vicinity (for example, the first air blowing unit, the second air blowing unit, the illumination heat, and the outside air heat). Even so, the heat is absorbed as the melting heat of ice and the heat of vaporization of its moisture. Therefore, it can suppress that the temperature in a storage part becomes higher than about 0 degreeC.

  Moreover, the ice which exists in the crushed ice passage space of a heat exchanger is a crushed ice state. Therefore, since the ice in the crushed ice passage space is not a large lump but a small lump of ice, the surface area of the ice can be increased compared to using a large lump of ice. Therefore, the basic cold air can be efficiently set to the target temperature cold air of about 0 ° C. Moreover, melting of ice and vaporization of the melted water can be efficiently performed, and the humidity in the storage unit can be effectively increased to about 100% relative humidity.

  In the temperature management device according to the present invention, preferably, the heat exchanger has a through hole that passes the basic cold air sent to the cold air temperature changing unit by the first air blowing unit and guides it to the ice breaking space. Features.

  According to the temperature management device of the present invention, the basic cold air passes through the through-hole provided in the heat exchanger and comes into direct contact with the crushed ice existing in the crushed ice passage space more reliably. Thereby, the basic cold air becomes the target temperature cold air of the target temperature that has been changed to about 0 degrees Celsius more reliably.

  In the temperature management device according to the present invention, preferably, the heat exchange element has a portion having a shape spreading from the upstream side to the downstream side of the flow of the basic cold air.

  According to the temperature management device of the present invention, it is possible to secure an ice breaking space inside the heat exchanger. Further, the basic cold air can smoothly pass around the heat exchanger along the flow with the air resistance being suppressed.

  In the temperature management device according to the present invention, preferably, the temperature management object is a food.

  According to the temperature management device of the present invention, the moisture inside the food as the temperature management object freezes and can be properly stored while maintaining the quality of the food without causing the food to freeze. .

  The present invention has an advantage that it is possible to provide a temperature management device and a temperature management method capable of maintaining quality such as freshness of a temperature management object while preventing the formation of frozen objects in the temperature management object such as food.

It is a perspective view which shows the whole preferable embodiment of the temperature management apparatus of this invention. It is a block diagram which shows the system structural example of the temperature management apparatus shown in FIG. FIG. 3 is a partially cutaway perspective view showing an internal unit of a refrigeration cycle, an ice breaking heat exchanger, an ice breaking heat exchange fan, and a screw conveyor. It is a perspective view which shows the structural example of a screw conveyor and a crushed ice heat exchanger. It is sectional drawing of the vertical direction which shows the structural example of a screw conveyor and a crushed ice heat exchanger. It is explanatory drawing which shows the example of the temperature range at the time of setting to 0 degree C as the designated temperature (storage designated temperature) of a storage space. It is a figure which compares and shows the storage test result by the temperature management apparatus of embodiment of this invention, and the example of the storage test by the conventional cooler. It is a figure which shows the image of the cooling temperature curve at the time of cooling by the temperature management apparatus of embodiment of this invention. It is a schematic flowchart which shows the method of pre-cooling the food W which is going to freeze from now on using the temperature management apparatus of embodiment of this invention (pre-cooling), and the method of defrosting the already frozen food.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
The embodiments described below are preferred specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.

  FIG. 1 is a perspective view showing the entire preferred embodiment of the temperature management device of the present invention. FIG. 2 is a block diagram showing a system configuration example of the temperature management device 1 shown in FIG. FIG. 3 is a perspective view showing a part of the temperature management device 1 shown in FIG.

<Outline of temperature management device 1>
As shown in FIGS. 1 and 2, the temperature management device 1 can also be called a cooler or a cooling storage. The temperature management device 1 is, for example, a commercial cooling storage device for storing temperature management objects such as meat, fish, vegetables, and other foods for temperature management.

  The temperature management device 1 accommodates food W such as food in a storage part in the storage, for example, the storage space 11, and is a target temperature that is always suitable for storage in the storage, for example, 0 ° C. It is possible to keep all the temperatures from the surface to the central portion of the food W uniformly and to cool to 0 degrees Celsius.

  Moreover, the temperature management device 1 prevents the water of the food W stored in the storage space 11 from freezing to form icing (ice crystals) during the cooling, so that the food W is, for example, −1 ° C. Do not reach freezing temperatures in the range of -5 ° C. Thereby, the temperature management apparatus 1 has a function which can maintain quality, such as the freshness of the food W.

As shown in FIGS. 1 and 2, the temperature management device 1 includes a box-type cooling unit 2, an ice breaker, for example, an ice breaker 3, a water storage tank 4, and a control unit 100.
The cooling unit 2 includes a main body unit 5 and an external unit 6. The ice breaker 3 and the water storage tank 4 are disposed outside the cooling unit 2. The ice breaker 3 and the water storage tank 4 constitute an ice supply unit 70 for supplying ice (preferably the ice breaker 200 shown in FIG. 2) to a cold air temperature changing unit, for example, the ice breaker heat exchanger 8.

<Cooling unit 2>
The main body 5 of the cooling unit 2 shown in FIGS. 1 and 2 forms, for example, a box shape, and the external unit 6 is connected to the main body 5 via refrigerant pipes 24 and 26 described later. Connected externally.
The main body 5 of the cooling unit 2 is a metal cooling storage 12, an internal unit 7, an ice breaking heat exchanger 8, and a second air blower for the second cold air CL2, for example, the target temperature cold air. A heat exchange fan 9, a screw conveyor 10, and a storage space 11 are provided.

  The internal unit 7, the ice-breaking heat exchanger 8, the ice-breaking heat exchange fan 9, and the screw conveyor 10 are disposed in the cooling storage 12. The storage space 11 is formed in the cold storage 12 and is a space for storing and storing (keeping) the food W. The food W to be stored is, for example, meat, fish, vegetables, etc., but is not particularly limited.

The cooling storage 12 shown in FIGS. 1 and 2 will be described.
The cooling storage 12 shown in FIG. 1 and FIG. 2 is made into a box shape with a metal such as stainless steel, and is installed on the floor surface F shown in FIG. The internal unit 7, the ice breaking heat exchanger 8, the ice breaking heat exchange fan 9, and the screw conveyor 10 are disposed in the upper part of the internal space of the cooling storage 12.

The storage space 11 is provided below the internal space of the cooling storage 12 and below the internal unit 7, the ice breaking heat exchanger 8, the ice breaking heat exchange fan 9, and the screw conveyor 10.
The internal unit 7, the ice breaking heat exchanger 8, the ice breaking heat exchange fan 9 and the screw conveyor 10 are collected and arranged on the upper part of the cooling storage 12, and the storage space 11 is composed of the internal unit 7, the ice breaking heat exchanger 8 and the ice breaking heat. Since the replacement fan 9 and the screw conveyor 10 are provided below, the storage space 11 can secure a wide space.
The screw conveyor 10 is an ice guide for guiding, for example, the ice breaker 200 that is ice from the ice breaker 3 side to the ice breaker heat exchanger 8 side.

  As shown in FIG. 1, at least one shelf 15 is detachably disposed in the storage space 11 of the cooling storage 12. On the shelf board 15, the food W described above can be placed and stored, and the shelf board 15 is preferably made of a material that can easily pass the second cold air CL 2 such as a knitted board.

As shown in FIG. 1, the side surface of the cooling storage 12 has an opening 13. The cooling storage 12 includes an opening / closing door 14.
The open / close door 14 is attached by a hinge 14H and can open and close the opening 13. The opening 13 is provided corresponding to the position of the storage space 11.
Thereby, an operator can put the food W before temperature control on the shelf 15 in the storage space 11 from the outside through the opening 13 or take out the food W after temperature control to the outside. Can do.

Next, the internal unit 7 shown in FIGS. 1 and 2 will be described.
As shown in FIG. 2, the internal unit 7 includes a cold air evaporator 20, a compressor (compressor) 21, and basic cold air, for example, a first air blower of the first cold air CL 1, for example, a cold air discharge fan 22. Have

The cold evaporator 20 and the compressor 21 are connected by a refrigerant pipe 23. A cool air discharge fan 22 is disposed on the front side of the cool air evaporator 20, and the cool air discharge fan 22 converts, for example, −10 ° C. first cold air CL 1 discharged from the cool air evaporator 20 into a crushed ice heat exchanger. It has a role to feed into the container 8 side.
The motor 22M of the cool air discharge fan 22 is rotationally controlled by a command from the control unit 100.
The cold air evaporator 20 is an example of a basic cold air generating unit that generates the first cold air CL1.

Next, the external unit 6 shown in FIGS. 1 and 2 will be described.
As shown in FIG. 2, the external unit 6 includes a condenser 16, an expansion valve 17, and a blower fan 18.
The compressor 21 and the condenser 16 are connected by a refrigerant pipe 24. The condenser 16 and the expansion valve 17 are connected by a refrigerant pipe 25.

The expansion valve 17 and the cold air evaporator 20 are connected by a refrigerant pipe 26. The blower fan 18 blows air to the condenser 16 to cool the condenser 16.
The rotation of the motor 18M of the blower fan 18 is controlled by a command from the control unit 100. The compressor 21 is driven by a command from the control unit 100.

As shown in FIG. 2, the cold air evaporator 20 and the compressor 21 of the internal unit 7, the condenser 16 and the expansion valve 17 of the external unit 6 constitute a refrigeration cycle 150.
In the refrigeration cycle 150, the high-temperature and high-pressure gas of the refrigerant is supplied from the compressor (compressor) 21 to the condenser 16 through the refrigerant pipe 24, and the condenser (condenser) 16 radiates heat.

A normal-temperature / high-pressure liquid of the refrigerant is supplied from the condenser 16 to the expansion valve 17 through the refrigerant pipe 25. The low-temperature and low-pressure mist gas of the refrigerant is sent from the expansion valve 17 to the cold-air evaporator (evaporator) 20 through the refrigerant pipe 26, so that the cold-air evaporator 20 absorbs heat and releases the first cold air CL1. To do.
From the cold air evaporator 20 to the compressor 21, low-temperature and low-pressure gas of the refrigerant is sent through the refrigerant pipe 23. In this way, the cool air evaporator 20 discharges the first cool air CL1 of, for example, −10 ° C., and the cool air discharge fan 22 converts the first cool air CL1 released by the cool air evaporator 20 into the crushed ice heat exchanger 8. It is designed to be fed securely to the side.

Next, the crushed ice heat exchanger 8 shown in FIGS. 1 and 2 will be described.
FIG. 3 is a partially cutaway perspective view showing the internal unit 7, the ice-breaking heat exchanger 8, the ice-breaking heat exchange fan 9, and the screw conveyor 10 described above. FIG. 4 is a perspective view showing a structure example of the screw conveyor 10 and the crushed ice heat exchanger 8. FIG. 5 is a longitudinal sectional view showing an example of the structure of the screw conveyor 10 and the crushed ice heat exchanger 8.

1 to 3, the flow direction of the first cool air CL1 is represented by the X direction, the vertical direction is represented by the Z direction, and the direction perpendicular to the paper surface of FIG. 2 is represented by the Y direction.
As shown in FIGS. 1 to 3, the ice breaking heat exchanger 8 is disposed between the cool air discharge fan 22 and the ice breaking heat exchanger 8. The ice breaking heat exchange fan 9 is further arranged on the front side of the ice breaking heat exchanger 8. The screw conveyor 10 is disposed on the upper part of the crushed ice heat exchanger 8.

First, the screw conveyor 10 as an ice breaker conveying device for conveying the ice breaker 200 will be described.
As shown in FIGS. 3 and 4, the screw conveyor 10 has a function of causing the ice breaker 200 supplied from the ice breaker 3 to be described later to be continuously conveyed linearly along the Y direction.

The screw conveyor 10 includes a guide body 30, a screw 31 disposed in the guide body 30, and a drive motor 32.
The guide body 30 has, for example, a cylindrical shape, and is fixed inside the cooling storage 12 along the Y direction. As shown in FIG. 3, both end portions of the guide body 30 are closed by flange portions 30R and 30L. The guide body 30 and the screw 31 are made of metal such as stainless steel.

As shown in FIGS. 4 and 5, the screw 31 has a spiral continuous blade 31H and a shaft portion 31B holding the blade 31H, and both end portions of the shaft portion 31B are The guide body 30 is rotatably supported by bearings inside the flange portions 30R and 30L. The shaft portion 31 </ b> B of the screw 31 is connected to the output shaft of the drive motor 32 using a speed reducer 33.
The screw 31 drives the drive motor 32 in response to a command from the control unit 100, so that the screw 31 rotates inside the guide body 30 so that the ice crushed 200 placed in the guide body 30 is in the direction of conveying the crushed ice. In the direction, it can be continuously conveyed linearly.

As shown in FIGS. 4 and 5, the guide body 30 of the screw 31 includes an input port 35 for the ice break 200 and a plurality of discharge ports 36 for dropping the ice break 200.
One insertion port portion 35 is provided at a position on the flange portion 30L side of the guide body 30 and facing upward. The charging port 35 is an opening through which the crushed ice 200 supplied from the ice breaker 3 is charged into the upstream side of the guide body 30.

On the other hand, a plurality of discharge port portions 36 are provided to protrude downward at the same interval between the flange portion 30L side of the guide body 30 and the flange portion 30R side of FIG.
These discharge ports 36 are configured to drop the crushed ice 200 continuously conveyed in the Y direction in the guide body 30 to the crushed ice heat exchanger 8 side.

Next, the ice breaking heat exchanger 8 will be described.
The ice-breaking heat exchanger 8 shown in FIGS. 3 and 4 is arranged upright in the Z direction at the lower part of the screw conveyor 10. The ice breaker heat exchanger 8 has a structure that allows the ice breaker 200 falling through the discharge ports 36 of the guide body 30 of the screw conveyor 10 to pass therethrough.

  As shown in FIG. 4, the ice breaking heat exchanger 8 includes a plurality of heat exchange bodies 40 and a receiving member 41. The heat exchangers 40 are arranged in series in parallel to the Y direction at a predetermined interval. That is, as shown in FIG. 2 and FIG. 3, the plurality of heat exchange bodies 40 are arranged side by side so as to be parallel to the cold air evaporator 20 and the cold air discharge fan 22.

As shown in FIGS. 4 and 5, each heat exchange element 40 is preferably made of a metal having good heat exchange efficiency and not easily rusted, such as stainless steel and copper.
For example, each heat exchanging body 40 is formed by bending this metal plate, and inside each heat exchanging body 40, an ice breaking passage space SP is formed along the Z direction. Each heat exchanger 40 has an upper end opening 40B and a lower end opening 40C.

The crushed ice passage space SP is formed so that the cross-sectional shape in the horizontal direction of each heat exchange element 40 gradually increases in thickness along the X direction that is the direction in which the first cold air CL1 is sent.
That is, the ice breaking space SP of each heat exchanger 40 is tapered on the upstream side of the first cold air CL1, and expands from the upstream side to the downstream side of the first cold air CL1.

  However, the downstream end portion of the first cool air CL1 of each heat exchanger 40 has, for example, a semicircular shape. Thereby, the 1st cold air CL1 can pass smoothly without enlarging air resistance as much as possible around each heat exchanging body 40 along the X direction.

Each heat exchange element 40 is preferably formed by, for example, bending a punched mesh metal plate. Thereby, in each heat exchange body 40, a plurality of through holes 40H are formed over the entire surface.
When the first cool air CL1 discharged from the cool air evaporator 20 is sent to the crushed ice heat exchanger 8 side by the rotation of the cool air discharge fan 22, the first cool air CL1 passes through the plurality of through holes 40H to exchange each heat. It passes through the ice breaking space SP of the vessel 40.

The crushed ice heat exchanger 8 shown in FIG. 2 is a heat exchange filter that exchanges heat of the −10 ° C. first cold air CL1 discharged from the cold air evaporator 20 at around 0 ° C.
In the ice breaking heat exchanger 8, the ice breaking 200 is always passed in front of the first cold air CL1 being discharged.

For this reason, the first cold air CL1 of −10 ° C. lower than 0 ° C. is forcibly brought into contact with the ice break 200 passing through the ice break passage space SP of each heat exchanger 40, and heat exchange is performed. The second cold air CL2 having a temperature closer to about 0 ° C. can be generated.
The ice breaking heat exchanger 8 constitutes an ice breaking wall (ice breaking filter) that thermally converts the first cold air CL1 of −10 ° C. at the ice breaking temperature of the ice breaking 200.

Further, the −10 ° C. first cold air CL1 that has passed through these heat exchangers 40 comes into contact with the crushed ice 200, so that the ice melts and the water is vaporized, so that the relative humidity is 100% or 100%. Nearly, water vapor of about 0 ° C. is generated.
At this time, since the ice is not a large lump but a small lump of crushed ice 100, the surface area of the ice can be increased compared to using a large lump of ice. It has a configuration capable of efficiently performing vaporization. Further, the second cool air CL2 can be more efficiently brought to a temperature of 0 degrees Celsius and the vicinity thereof (about 0 degrees Celsius).

As shown in FIGS. 4 and 5, the discharge port portion 36 of the guide body 30 is inserted into the upper end opening 40 </ b> B of each heat exchange body 40 of the ice breaking heat exchanger 8.
The lower end opening 40 </ b> C side of each heat exchanger 40 is positioned in the receiving member 41. The receiving member 41 is configured to receive the crushed ice 200 falling in all the heat exchangers 40.

As a result, as shown in FIG. 5, the crushed ice 200 continuously conveyed in the Y direction in the guide body 30 of the screw conveyor 10 is subjected to heat exchange at a corresponding position from the discharge port portion 36 of the guide body 30. It is thrown in from the upper end opening 40B of the body 40 and falls in the ice breaking space SP. Then, the crushed ice 200 is discharged into the receiving member 41 from the lower end opening 40C of the heat exchanger 40.
The discharged ice breaker 200 is configured to be circulated and reused by returning it to, for example, a water storage tank 4 or an inside of the ice breaker 3 described later.

Next, the ice breaking heat exchange fan 9 shown in FIGS. 2 and 3 will be described.
The ice breaking heat exchange fan 9 shown in FIGS. 2 and 3 is rotated by the drive motor 9M in response to a command from the control unit 100.
When the ice breaking heat exchange fan 9 rotates, the melting temperature of the ice breaking 200 or the vaporization speed of the melted water can be changed and accelerated together with the wind pressure.

  Thereby, the fan 9 for ice-breaking heat exchange has a turbulent wind speed in the storage space 11 necessary for heat exchange between the humidity density that fills the storage space 11 in the warehouse and the food W in the storage space 11. Can be adjusted.

As described above, the ice-breaking heat exchange fan 9 generates the melting function of the ice-breaking heat exchanger 8 that is an ice-breaking filter, vaporization of molten water, and turbulent airflow in the storage space 11.
The ice breaking heat exchange fan 9 introduces and circulates the moisture vapor of the crushed ice 200, which has been melted and vaporized, into the storage space 11 and circulates it, so that the relative humidity in the storage space 11 is 100% or 100%. It has the role of increasing the mass of cold air similar to the accumulation of cold heat.

Next, the ice breaker 3 and the water storage tank 4 shown in FIGS. 1 and 2 will be described.
As shown in FIGS. 1 and 2, the ice breaker 3 is connected to a water storage tank 4 by a pipe 4 </ b> B. The ice breaker 3 has a function of an ice making machine that makes ice itself. The ice breaker 3 is connected to the inlet 35 of the guide body 30 of the screw 31 by an ice break supply pipe 3B.

  As a result, when the control unit 100 drives the motor 4M and the water stored in the water storage tank 4 is automatically poured into the ice breaker 3 and supplied, the ice breaker 3 forms an ice lump. It is done. The ice block is crushed by a crushing device such as a crusher in the ice breaker 3 to obtain a crushed ice 200 that is a relatively small piece of ice.

  As described above, by breaking the large lump of ice into the crushed ice 200, which is a small lump of ice, the surface area of the ice can be significantly increased as compared to using a large lump of ice as described above. it can. For this reason, the crushed ice heat exchanger 8 can generate the second cold air CL2 more efficiently.

As shown in FIG. 2, the obtained ice break 200 is introduced into the inlet 35 of the guide body 30 of the screw 31 by the ice break supply pipe 3 </ b> B of the ice breaker 3.
When the crushed ice 200 is introduced into the insertion port 35 in this manner, the screw 31 of the screw conveyor 10 drives the drive motor 32 in accordance with a command from the control unit 100 as shown in FIG. Rotating inside 30, the crushed ice 200 put in the guide body 30 is continuously conveyed in the Y direction, which is the conveying direction of the crushed ice 200.

  Then, the crushed ice 200 conveyed in the guide body 30 along the Y direction is introduced from the upper end opening 40 </ b> B of the heat exchange body 40 at a corresponding position from the discharge port 36 of the guide body 30. For this reason, the crushed ice 200 falls in the crushed ice passage space SP of the heat exchanger 40 and is discharged into the receiving member 41 from the lower end opening 40C of the heat exchanger 40.

In addition, as illustrated in FIG. 2, a plurality of temperature sensors SN <b> 1, SN <b> 2, SN <b> 3 can be preferably disposed in the main body portion 5 at an arbitrary position.
For example, the temperature sensor SN1 reports the temperature information of the first cool air CL1 to the control unit 100 in the vicinity of the cool air discharge fan 22.

The temperature sensor SN2 reports the temperature information of the second cold air CL2 to the control unit 100 in the vicinity of the ice breaking heat exchange fan 9. The temperature sensor SN <b> 3 is arranged in the storage space 11 and reports temperature information in the storage space 11 to the control unit 100.
Thereby, the control part 100 can monitor the temperature state of each part in real time with the temperature information from these temperature sensors SN1, SN2, and SN3.

<Operation example of temperature management device 1>
Next, an operation example of the above-described temperature management device 1 will be described.
For example, when the automatic water injection motor 4 </ b> M of the water storage tank 4 shown in FIG. 2 operates according to a command from the control unit 100, the water in the water storage tank 4 is automatically supplied into the ice breaker 3.
Thereby, in the ice breaker 3, a lump of ice is made by the ice making function. A crushing device such as a crusher in the ice crusher 3 crushes the ice lump so that the ice crush 200 is obtained.

  As shown in FIG. 2, the obtained ice break 200 is put into the inlet 35 of the guide body 30 of the screw conveyor 10 through the ice break supply pipe 3 </ b> B of the ice breaker 3.

As shown in FIG. 5, by driving the drive motor 32 according to a command from the control unit 100, the screw 31 of the screw conveyor 10 rotates inside the guide body 30 and is crushed ice that is thrown into the guide body 30. 200 is continuously conveyed in the Y direction which is the conveying direction of the crushed ice.
As a result, as shown in FIG. 5, the crushed ice 200 conveyed in the guide body 30 along the Y direction passes through the discharge port portion 36 of the guide body 30 and the upper end opening of the heat exchange body 40 at the corresponding position. It is thrown in from 40B and passes while falling in the crushed ice passage space SP.

  Then, the crushed ice 200 is discharged into the receiving member 41 from the lower end opening 40C of the heat exchanger 40. The discharged ice breaker 200 can be reused preferably by returning it to the inside of the water storage tank 4 or the inside of the ice breaker 3 described later, for example.

  In this way, when the ice crushed 200 is introduced from the upper end opening 40B of the heat exchanger 40 at a corresponding position from the discharge port 36 of the guide body 30 and passes while falling in the ice crushed space SP. The refrigeration cycle 150 shown in FIG. 2 has already been operated.

  That is, in the refrigeration cycle 150 shown in FIG. 2, the high-temperature and high-pressure gas of the refrigerant is supplied from the compressor 21 to the condenser 16 through the refrigerant pipe 24, and the condenser 16 radiates heat. From the condenser 16 to the expansion valve 17, a normal temperature / high pressure liquid of the refrigerant is supplied through the refrigerant pipe 25.

  Then, the low-temperature and low-pressure mist gas of the refrigerant is sent from the expansion valve 17 to the cold-air evaporator 20 through the refrigerant pipe 26, so that the cold-air evaporator 20 absorbs heat and releases the first cold air CL1. . From the cold air evaporator 20 to the compressor 21, low-temperature and low-pressure gas of the refrigerant is sent through the refrigerant pipe 23.

  In this way, the cool air evaporator 20 discharges the first cool air CL1 of, for example, −10 ° C., and the cool air discharge fan 22 discharges the first cool air CL1 of, for example, −10 ° C. that the cool air evaporator 20 releases. It is sent to the crushed ice heat exchanger 8 side.

As shown in FIG. 4, the cross-sectional shape in the horizontal direction of each heat exchange element 40 passes through crushed ice so that the thickness gradually increases along the X direction, for example, the direction in which the first cold air CL1 of −10 ° C. is sent. A space SP is formed.
The upstream side of each heat exchanger 40 in the X direction of the first cold air CL1 is tapered and spreads from the upstream side in the X direction of the first cold air CL1 toward the downstream side in the X direction.

  Thereby, while ensuring the ice breaking passage space SP in the heat exchanger 40, the first cold air CL1 can smoothly pass around each heat exchanger 40 along the X direction.

  Moreover, when the first cold air CL1 discharged from the cold air evaporator 20 is sent to the ice breaking heat exchanger 8 side by the rotation of the cold air discharge fan 22, the first cold air CL1 is transferred to the ice breaking 200 in each heat exchanger 40. 2 through the plurality of through-holes 40H of each heat exchanger 40 and the ice breaking space SP of each heat exchanger 40, and the rotation operation of the ice breaking heat exchange fan 9 causes the arrow X1 in FIG. As shown in FIG.

  Thereby, as shown in FIG. 5, in each heat exchanger 40 of the ice breaking heat exchanger 8, the ice breaking 200 passing while falling in the ice breaking passage space SP exchanges heat with the first cold air CL1 of, for example, −10 ° C. Therefore, as shown in FIG. 2, the second cold air CL2 having a temperature in the vicinity of 0 degrees Celsius is released in the X direction.

  In addition, since the melted and melted water is vaporized in these crushed ice 200, the relative humidity rises to about 100%. Therefore, the second cold air CL2 having a relative humidity of about 100% at 0 ° C. can be filled in the storage space 11 as indicated by the arrow X1 in FIG.

The second cold air CL2 that has passed through the storage space 11 is continuously circulated in the storage space 11 by the ice breaking heat exchange fan 9.
For this reason, the temperature management object M, which is a food such as meat, fish, or vegetables, stored in the storage space 11 has a relative temperature and humidity environment of about 0 ° C. in the storage space 11. Cooling can be performed while maintaining the humidity at about 100%.

  The ice breaking heat exchange fan 9 is rotated by a drive motor 9M. The ice-breaking heat exchange fan 9 controls the rotation of the drive motor 9M according to a command from the control unit 100, thereby exchanging heat between the humidity density filling the storage space 11 in the warehouse and the food W in the storage space 11. It is possible to adjust the turbulent wind speed in the storage space 11 necessary for performing.

  As described above, in the temperature management device 1 according to the embodiment of the present invention, the heat of evaporation of the first cold air CL1 generated by the cold air evaporator 20 as the cold air generator 20 of the refrigeration cycle 150 shown in FIG. Passes through the ice breaking heat exchanger 8 having the ice breaking passage space SP through which the ice breaking 200 passes, so that the second cold air having a relative humidity of about 0 ° C. or 0 ° C. and extremely close to 100% or 100%. CL2.

  Then, the second cold air CL2 having a relative humidity close to 100% or 100% at about 0 degrees Celsius is circulated in the storage space 11 to change the product temperature of the food W to an environment of 0 degrees Celsius. Can be maintained within.

  In this way, the storage space 11 has an atmosphere having a relative humidity close to 100% or 100% at 0 ° C. and in the vicinity thereof, and the atmosphere is circulated by the fan 9 for crushed ice heat exchange. All the temperatures from the surface of W to the central portion are uniformly cooled to 0 ° C. so that even if it is a part of the food W, freezing is not formed.

In particular, in the case of the food W, since amino acids and minerals are dissolved in the water, it does not freeze at 0 ° C., for example, freezes within a range of −1 ° C. to −5 ° C.
Therefore, in the atmosphere of 0 degrees Celsius, the water content of the food W is stored without generating freezing.

  On the other hand, by storing at 0 ° C., recent growth can be suppressed, so that it can be stored in a very hygienic manner.

In the temperature management device 1 shown in FIG. 2, for example, the amount of heat generated by the motor 22M of the cool air discharge fan 22, the amount of heat generated by the motor 9M of the ice breaking heat exchange fan 8, the amount of heat generated by the motor 32 of the screw conveyor 10, etc. In addition, the amount of heat and the amount of heat that hinders cooling such as intrusion heat from the outside air can be used as a heat source for promoting the melting and vaporization phenomenon of the crushed ice 200.
That is, the amount of heat that inhibits the cooling of the food W is deprived by the crushed ice 200 as a heat source for promoting the melting and vaporization phenomenon of the crushed ice 200.

  For this reason, the amount of heat of these motors 32 is configured not to cause further increase in the ambient temperature in the storage space 11 from 0 ° C. and the temperature in the vicinity thereof.

  Moisture such as steam resulting from vaporization of water after melting of the crushed ice 200 becomes very fine humidity particles, and dew condensation water such as water droplets on the metal wall of the storage space 11 or the stored food W. The food W can be stored with high quality.

In the case of a normal refrigerator or cooler, static electricity usually occurs around the power fan in the cabinet or inside the apparatus, and dust and dust deposits are observed.
On the other hand, in the case of the temperature management device 1 of the embodiment of the present invention, there is no trace of static electricity when the cool air discharge fan 22 and the ice breaking heat exchange fan 9 are rotated. This is because the relative humidity in the storage space 11 is very close to 100% or 100%.

Reference is now made to FIG.
FIG. 6 shows an example of the temperature range when the temperature management apparatus 1 of the present embodiment is set to 0 degrees Celsius as the designated temperature (designated temperature in the cabinet) of the storage space 11 shown in FIG.
The designated temperature of the storage space 11 is close to 0 degrees Celsius as shown in FIG. 6, preferably in the temperature range of −0.5 ° C. to + 0.5 ° C., but the minus temperature (low temperature) and the plus temperature (high temperature) are It becomes 0 degree Celsius and its vicinity promptly by heat exchange or the like.

  Thus, since the temperature in the storage space 11 is 0 degrees Celsius and the vicinity thereof, the individual distribution temperature of the food W is uniformly 0 degrees Celsius and the vicinity thereof. It is expected to have a great effect in suppressing deterioration such as deterioration of freshness, lipid rancidity, pigment change, and other internal factors, microbial growth, and external damage.

When a refrigerator or cooler that is normally used different from the present embodiment stores food refrigerated, the temperature sensor or thermometer senses the average temperature at the contact surface with the air staying in the device. Thus, the cooling power is controlled.
This average temperature is displayed on the outside of the device, but the internal temperature of the refrigerator or cooler is a daily temperature sensor function or error, or an error of 2 to 3 ° C depending on the installation position is normal. It is a good thing.

  On the other hand, in the temperature management device 1 according to the embodiment of the present invention, the set cooling specified temperature is 0 degrees Celsius, and the individual temperature of the food W to be stored is cooled to about 0 degrees Celsius. The belt can be maintained for a long time.

Reference is now made to FIG.
FIG. 7 shows an example of a storage test result by the temperature management device 1 of the present embodiment and a storage test result by a conventional cooler. Examples of food W are strawberry, melon, white peach, pepper, lemon, lettuce and spinach.

  In a storage test using a conventional refrigerator, the designated cooling temperature is 0 ° C. to 10 ° C., and the relative humidity is 85% to 95%. In a storage test using a conventional refrigerator, the storage period is about 7 days to 4 months, which is short as a whole.

On the other hand, in the temperature management device 1 of the present embodiment, the specified cooling temperatures are all about 0 ° C., and the relative humidity is all about 100%.
In the case of storing by the temperature management device 1, the storage period has been greatly increased for each type of food W compared to the conventional example, from 60 days to one year or more. Results are obtained.

  In general, in storage tests, pepper, lemon, and melon are the ones that cause low-temperature damage such as the formation of freezing, and strawberries and white peaches are not evaluated as being effective for low-temperature storage. In the past, especially in the case of pepper and lemon, it was thought that storage at a low temperature around 0 ° C. would cause a low temperature failure and lose its value.

However, the temperature management device 1 according to the present embodiment, even for such foods such as pepper, lemon, melon, strawberry, and white peach, causes low-temperature damage such as the formation of frozen objects as illustrated in FIG. A long shelf life can be realized without waking up.
Moreover, the quality assurance time from the time when the food is stored for a long storage period and then returned to room temperature is also 1.5%, for example, compared to the quality assurance time of an equivalent food purchased at a commercially available fresh food store. It will be about double.

Although it is difficult to control the temperature to about 0 ° C. as a characteristic of a conventional cooler, it is not a problem to create a temperature of 0 ° C. or less.
However, regarding the quality of the food, when the temperature is less than or equal to plus or minus 0 ° C., which is important for maintaining the freshness, a large error occurs in the quality of the food.

  In particular, in conventional coolers, soft vegetables, strawberries, leafy vegetables, etc., as seen with the naked eye, are stored in a temperature range of plus or minus 0 ° C. or less, causing a change in quality and causing trouble. This failure is a refrigeration failure such as the formation of frozen objects, and it is difficult to distinguish fish shellfish and livestock meat with the naked eye, but the quality is inferior to that of ordinary fresh food.

Foods that have once had traces of fine icing phenomenon have a high quality deterioration rate, and have a high texture and taste and are different from fresh foods. When storing food or the like using cold air, storing at about 0 ° C. can exhibit the most effective freshness-keeping effect.
In this respect, in the present embodiment, the food W is stored at about 0 ° C., and can be stored from the surface of the food W to the central portion at the same temperature of about 0 ° C., so that frozen matter may be generated inside the food. Absent. Therefore, the most effective freshness maintaining effect is exhibited.
That is, in the present embodiment, it is possible to mitigate the respiration effect of fruits and vegetables, the decrease in freshness due to enzymes, the rancidity of oily substances, the pigment change, and the like.

Reference is now made to FIG.
FIG. 8 is a diagram illustrating an image of a cooling temperature curve during cooling by the temperature management device 1 of the present embodiment.
In FIG. 8, in a region where the temperature starts to drop from 6 ° C. and falls from 4 ° C. to 2 ° C., the food starts to be hydrated, and the tissue formation balance between moisture and nutrients is in place, and freezing denaturation occurs. It was alleviated, and it was found that there was no drip from the food.

  In the region where the temperature falls from 2 ° C to 0 ° C, a state of integration begins to occur, the tissue formation balance between moisture and nutrients is further improved, freezing denaturation is further relaxed, stability is increased, and drip is further generated. I found out.

In the temperature management device 1 shown in FIG. 1 and FIG. 2, the cooling capacity in the cooling storage 12 of the main body 5 of the cooling unit 2 is preferably a calorific value of 1500 kCal per cubic basis, and a heat capacity of 350 kCal which is normally seen as a high heat capacity. It has four times more ability.
On the other hand, a normal cooler has a cooling capacity of 270 to 350 kCal.

  Further, as the heat insulating material disposed in the main body portion 5 of the cooling unit 2, a refrigeration heat insulating material having a thickness of 50 mm is normally used when the temperature is about 0 ° C. In order to prevent obstructive factors including the like, a heat insulating material having a thickness of 100 mm or more is preferably used.

As described above, the temperature management device 1 according to the embodiment of the present invention has a storage and storage function for the food W. For this reason, the temperature management apparatus 1 was able to extend the freshness of the food W of fresh foods over a long period of time, compared with the information reported so far, for a long time.
In particular, the yield can be improved by sorting the parts of livestock meat, adjusting the collection of uniform parts, adjusting sales, and cutting / slicing processed products.

In addition, regarding cold chain quality problems such as transportation from production areas to consumption areas, it is possible to stabilize the quality from remote areas, and the domestic self-sufficiency rate, including the meaning of measures against waste loss, is expected.
In addition, harvesting of peaches that are painful in general fruits can be done more than two months before the scheduled sale date, and it can be done as a light work for elderly people, etc. Sales opportunities can be created, and sales opportunities can be kept longer.

  The temperature management device 1 according to the embodiment of the present invention, in addition to the above-described storage and storage function for the temperature management object W, as described below, a preliminary freezing function for the temperature management object W, and a temperature management object W It has a decompression function.

<Pre-freezing function>
Pre-cooling (pre-cooling) function for improving food refrigeration technology possessed by the temperature management device 1 In the environment of the storage space 11 of the temperature management device 1, the temperature of the food W can be maintained near 0 ° C., and the temperature of the food W is set to 0 ° C. The ability to cool uniformly to the extent can be used as a preliminary cooling at the time of freezing food, and it is possible to avoid the occurrence of obstacles such as the formation of freezing during freezing consisting of the water freezing crystal formation zone of food. is there.

  The temperature management device 1 creates an internal temperature environment based on a temperature of plus or minus 0 degrees Celsius in the storage space 11 and can maintain and maintain the temperature range thereof. The temperature can be cooled to about 0 ° C.

The fact that the temperature of the entire volume of the food can be cooled to about 0 ° C. is used as a preliminary cooling at the start of freezing of meats and fishes in particular, so that no frozen matter is generated.
The same applies to foods with a high water content such as vegetable radish and pepper.

In the case of meat, immediately after slaughter, in the case of fish, immediately after harvesting, in the case of vegetables and fruits, from the time of harvesting until the stage where the food can be obtained, the quality of the product is greatly influenced by the environmental background of the product. ing.
Under such different acquisition conditions, the temperature management device 1 forcibly cools the obtained food in the storage space 11, and the temperature distribution of the individual volume of the food is uniform at a temperature of about 0 ° C. Prepare for the situation.

  As a result, the food prepared in the basic form at that time can be precisely harmonized with the ingredients and moisture of the food, and the food that has been in the process of change and alteration in a balanced manner until then, The balance returns to a balance similar to the basic axis of the base, and the tissue formation is secondarily established.

At the same time, the temperature line around 0 degrees Celsius has not yet caused the frozen state of the food, and the whole thing has the freezing temperature and the boundary temperature range, so the freezing speed during freezing is fast, The passing speed of the maximum ice crystal formation zone where is generated is high.
When freezing meat, fish and shellfish, etc., even after natural thawing, if the outside air condensation water is omitted, there is no outflow of drip from the inside, and after that it can be handled in the same way as fresh products, and it cannot be distinguished from fresh products. Revived by the state.

Furthermore, daikon radish and pepper, which are said to have a water content of about 95%, can be frozen, and frozen products that leave their texture and taste after thawing are immediately after pre-freezing using the temperature control device 1 It becomes possible by freezing.
Foods that have been frozen by the temperature control device 1 can be easily cut with cutlery below the freezing point, and objects such as ice crystals (freeze) are visually observed on the section after cutting. I couldn't.

In addition, according to this Embodiment, it became the state in which the freezing of the silken tofu which is a processed food made impossible conventionally was possible.
Conventionally, in the case of frozen tofu, since it cannot normally be frozen, it was made by using modified starch or the like for tofu made only with bitterness in soy milk.

<Decompression function>
The thawing function for improving the thawing technology of the food that the temperature management device 1 has in the past Conventionally, food that has been frozen is convenient, inexpensive, and abundant, but the quality after thawing Then, there are many foods that cannot be highly evaluated.
However, with its abundant amount and a stable assortment, many food manufacturing companies use frozen foods as foods that can be supplied, and the benefits of improving the quality after thawing are great.

  When using frozen food as a base material and using it as a processed cooked product, the freshness just before freezing is important, and its storage state and temperature control greatly affect its quality, The method considered to be the most important is a method of successfully thawing frozen food.

  When the temperature management method by the temperature management device 1 according to the present embodiment is used, the food W that has already been frozen is stored in the storage space 11 of the temperature management device 1 in advance, and is centered from the surface of the entire stored food W. When the portion is uniformly cooled at around 0 ° C. (about 0 ° C.), the frozen product can be thawed quickly and easily, and the thawed food W can be restored to high quality.

  That is, as described above, in the present embodiment, there is no freezing in the food W, so there is no destruction of the cells of the food W, and water flows out from the broken cells (drip) when thawed. The food W can be revived to high quality by effectively preventing the occurrence of.

  In the temperature management method by the temperature management device 1, the thawing of the frozen storage product in the frozen state is performed in the speed of raising the temperature of the frozen storage product to around 0 ° C. and the heat exchange mechanism in which the temperature is increased. It can be performed smoothly and the quality after thawing is excellent.

  Even in all thawing tests of livestock, cattle / pigs / chicken blocks, fillets, slices, and mince performed using the temperature management method of the temperature management device 1 according to the present embodiment, the state is very close to fresh. The beef is of a quality that can be ripened at low temperatures after thawing.

  In addition, food W that is kept at -50 ° C. or less in a very low temperature region such as a tuna, or food W that is a frozen product of meat block product having a thickness of 20 cm or more is quickly heated to about 0 ° C. It can be in a thawed state.

In the thawing of the block shape of the fillet fish using the temperature management method by the temperature management device 1, thawing was performed at a temperature of 0 ° C.
A uniform temperature distribution state is visible from the surface to the center of the block shape of the fillet fish, and when the thawing temperature at this time is about 0 degrees Celsius, the fillet fish contained therein is also about 0 degrees Celsius. There was no outflow of fish nutrients, and thawing was achieved with a taste and texture that would not be possible with normal thawed fish.

  On the other hand, in an individual that seems to be buried in normal ice, while the thawing of the fish itself is being promoted, the ice in the periphery or in the gap is still completely thawed. I couldn't say it, and I was able to confirm the state of breaking apart when pressure was applied.

  In this regard, in the temperature management device 1, the temperature of the food W, which is a frozen storage product, is increased in temperature to about 0 ° C. and the heat exchange mechanism in which the temperature is increased. Thawing can be performed smoothly, and the quality after thawing is superior to the conventional one.

  Moreover, in this Embodiment, the food W currently kept at -50 degrees C or less of an ultra-low temperature region, such as a tuna, and the food W which is a frozen product of the meat block goods whose thickness is 20 cm or more are promptly 0 degreeC. It is possible to raise the temperature to the extent that it is in a thawed state.

  Thus, the temperature management device 1 of the present embodiment can provide an excellent effect for thawing frozen products.

<Temperature management method>
Hereinafter, an example of the temperature management method by the temperature management apparatus 1 according to the embodiment of the present invention will be described with reference to the flowchart of FIG.
Specifically, referring to FIG. 9, a method for precooling (precooling) food W to be frozen and a method for thawing already frozen food using temperature management device 1 will be described. To do.

In step SC1 of FIG. 9, the food W to be frozen is stored in the storage space 11 of the temperature management device 1 shown in FIG.
Next, in step SC2, the food in the storage space 11 is pre-cooled at a relative humidity of about 0 ° C. and about 100% by the second cold air CL2 of about 0 ° C. supplied into the storage space 11. .

Next, in step SC3, the precooled food is taken out from the storage space 11, and in step SC4, the precooled food is put into a quick freezer and rapidly frozen at, for example, −60 ° C.
Thereafter, in step SC5, when the rapidly frozen food is thawed, the rapidly frozen food is taken out of the quick freezer and moved into the storage space 11 of the temperature management device 1.
The frozen food is thawed under the temperature and humidity conditions of 0 ° C. and 100% relative humidity by the second cold air CL 2 of 0 ° C. supplied into the storage space 11.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the claims. A part of each configuration of the above embodiment can be omitted, or can be arbitrarily combined so as to be different from the above.

  In the temperature management apparatus 1 according to the embodiment of the present invention, the storage space 11 is provided below the cold air evaporator 20, the crushed ice heat exchanger 8, and the crushed ice heat exchange fan 9. However, the present invention is not limited to this, and the storage space 11 may be provided at a position other than the lower part of the cold air evaporator 20, the crushed ice heat exchanger 8, and the crushed ice heat exchange fan 9.

  The temperature management device 1 according to the embodiment of the present invention cools and stores the food W, but can be used for various applications from a small household type to a large business use.

DESCRIPTION OF SYMBOLS 1 ... Temperature control apparatus, 2 ... Cooling part, 3 ... Ice crusher (ice supply part), 4 ... Water storage tank (ice supply part), 5 ... Main part, 6 ... External unit, 8 ... Icebreaking heat exchanger (ice heat exchanger), 9 ... Ice breaking heat exchange fan (second cold air CL2 blowing part), 10 ... Screw conveyor (ice guiding part), 11 ··· Storage space, 20 ··· Cold air evaporator (cold air generating portion), 22 · · · Cooling air discharge fan (air blowing portion of first cold air CL1), 40 · · · Heat exchanger of crushed ice heat exchanger, 40H ... through hole of heat exchanger, 70 ... ice supply unit, 100 ... control unit, 200 ... ice break, CL1 ... first cold air, CL2 ... second cold air, SP Ice breaking space of ice breaking heat exchanger (ice passing space), W ... food

Claims (4)

A storage section for storing a temperature management object;
A basic cold air generating unit that generates basic cold air that is cooler than the target temperature;
A cold air temperature changing unit that sets the basic cold air as a target temperature cooler at a target temperature of about 0 ° C. that is higher than the freezing temperature of the temperature management object and is suitable for storage;
An ice breaking unit for producing crushed ice and supplying the crushed ice to the cold air temperature changing unit;
A first air blowing unit that sends the basic cold air generated by the basic cold air generating unit to the cold air temperature changing unit;
A second air blowing unit for sending the target temperature cold air generated by the cold air temperature changing unit to the housing unit and filling it;
Have
The cold air temperature changing unit includes a heat exchanger in which an ice break passage space through which the ice break supplied from the ice breaker passes is formed, and the basic cold air sent from the first blower is used as the ice breaker. The temperature management device, wherein the target temperature cold air is generated by contacting with the crushed ice existing in the passage space.   2. The temperature management device according to claim 1, wherein the heat exchanger has a through-hole through which the basic cold air sent to the cold air temperature changing unit by the first air blowing unit is passed and led to the ice breaking space. .   The temperature management device according to claim 1, wherein the heat exchanger has a portion having a shape spreading from an upstream side to a downstream side of the flow of the basic cold air. The temperature management apparatus according to claim 1, wherein the temperature management object is food.

Images