JP2023111150A - Thawing device and system - Google Patents

Abstract

To suppress surplus thawing of an object to be thawed.SOLUTION: A thawing device (D) has a main body part (B) in which a thawing space (S1) for thawing an object (2) to be thawed, is formed. In the thawing space (S1), a pair of support parts (25, 25) is provided, the pair of support parts being arranged at a prescribed interval in a horizontal direction and on which the object (2) to be thawed is mounted. An interval L between the pair of support parts (25, 25) is a length at which, the object (2) is thawed and then the object (2) to be thawed falls.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to decompression devices and decompression systems.

2. Description of the Related Art Conventionally, a differential pressure cooling device is known in which a differential pressure chamber is provided in a refrigerator, a freezer, or the like, and an object to be cooled, such as processed food, placed in the differential pressure chamber is efficiently cooled. The differential pressure cooling device disclosed in Patent Literature 1 includes a fan that creates a negative pressure in the differential pressure chamber, and a differential pressure chamber that draws cold air from inside the refrigerator. In this differential pressure cooling device, the object to be cooled is arranged so that the object to be cooled is exposed to cold air sucked into the differential pressure chamber, thereby cooling the object to be cooled.

JP 2019-15431 A

In the differential pressure cooling device described in Patent Document 1, for example, a frozen food is a target object, and a thawing device that defrosts the frozen object (object to be thawed) by making the temperature inside the refrigerator higher than the object. available as

In front of such a defrosting device, a carriage on which objects to be defrosted are placed is arranged. The carriage is provided with a plurality of placing sections arranged vertically, and the objects to be defrosted are placed on each of the placing sections. In a defrosting system including a defrosting device and a cart arranged in this way, a difference in defrosting speed occurs between the mounting portion near the upper side of the cart and the mounting portion near the bottom side of the cart. Therefore, if the thawing device is stopped in accordance with the slowest thawed object, the thawed object at the relatively early thawed position continues to be exposed to warm air even after being thawed to the appropriate temperature. There was a problem of excessive defrosting.

An object of the present disclosure is to suppress excessive thawing of the material to be thawed.

A first aspect comprises a main body (B) in which a thawing space (S1) for thawing an object to be thawed (2) is formed. A pair of support portions (25, 25) are provided on which the object to be thawed (2) is placed, and the distance L between the pair of support portions (25, 25) is (2) is a thawing device with a length such that the object to be thawed (2) falls when thawed.

In the first aspect, the object to be thawed (2) is placed on a pair of supports (25, 25) in the thawing space (S1). The distance L between the pair of support parts (25, 25) is such that the object to be thawed (2) will drop when thawed. Therefore, when the object to be thawed (2) is thawed in the thawing space (S1), the object to be thawed (2) is gradually softened and deformed so as to fall between the pair of support portions (25, 25). The deformed object (2) to be thawed falls through the pair of support portions (25, 25) due to its own weight, and exits the thawing space (S1).

As a result, the object to be thawed to an appropriate freezing rate does not remain in the thawing space (S1), so that excessive thawing of the object to be thawed can be suppressed. Here, the freezing rate is an index indicating the degree of progress of thawing.

According to a second aspect, in the first aspect, the pair of support portions (25, 25) are configured such that the distance L between the support portions (25) can be changed.

In the second aspect, by changing the distance L between the supporting portions (25), it is possible to deal with various types, shapes, sizes and thicknesses of the objects (2) to be thawed.

In a third aspect, in the first or second aspect, the body (B) is provided under the thawing space (S1) to store the thawed material (2). A storage space (S2) is further formed.

In the third aspect, since the storage space (S2) is formed under the thawing space (S1), the thawed object (2) dropped from between the pair of support parts (25, 25) can be stored in the storage space (S2). It can be stored in the storage space (S2).

A fourth aspect is, in the third aspect, provided with a refrigerating case (30) that constitutes the storage space (S2) and keeps the temperature of the storage space (S2) at a predetermined temperature.

In the fourth aspect, the storage space (S2) is configured by the refrigerating case (30) that keeps the temperature of the space at a predetermined temperature. Therefore, the thawed object to be thawed is stored in the refrigerating case (30) while being maintained at an appropriate temperature. Thereby, the freshness of the thawed material (2) can be maintained.

In a fifth aspect, in the third or fourth aspect, the object to be thawed (2) placed under the pair of support portions (25, 25) and thawed and dropped from the support portion (25) It further comprises a guide part (26) for receiving and guiding to the storage space (S2).

In the fifth aspect, since the guide part (26) is provided, the object to be thawed (2) dropped from the pair of support parts (25, 25) is guided to the storage space (S2) by the guide part (26). be. This ensures that the thawed object (2) is stored in the storage space (S2).

A sixth aspect is a thawing space (S1) in which a pair of support parts (25 , 25), and a guide portion (26) receives the object (2) dropped from the support portion (25) and stores it in a refrigerating case (30). The thawing method includes a step of conveying and a step of storing the object to be thawed (2) conveyed by the guide section (26) in a refrigerating case (30).

In the sixth aspect, when the object to be thawed (2) is thawed, it softens and deforms. Therefore, the thawed object (2) to be thawed falls through between the pair of support portions (25, 25) due to its own weight. The object to be thawed (2) dropped from the support portion (25) is received by the guide portion (26) and conveyed to the refrigerating case. The object to be thawed (2) that has reached the refrigerating case (30) is stored at an appropriate temperature in the refrigerating case. As a result, it is possible to suppress excessive thawing in the thawing space (S1) of the object to be thawed (2) that has been thawed to an appropriate freezing rate, and to keep the thawed object (2) at an appropriate temperature. can be stored while maintaining

A seventh aspect is the thawing device (D) of any one of the first to fifth aspects, and a temperature control device (5 ) and a decompression system.

A seventh aspect can provide a defrosting system comprising a defrosting device and a temperature control device.

FIG. 1 is a schematic longitudinal sectional view showing the configuration of the thawing system according to the embodiment. FIG. 2 is a front view of the defrosting device. FIG. 3 is a side view of the defrosting device. Figure 4 is a schematic longitudinal section showing the air flow of the thawing system; FIG. 5 is an explanatory diagram showing how the object to be thawed is thawed.

<<Embodiment>>
Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Note that the present disclosure is not limited to the embodiments shown below, and various modifications are possible without departing from the technical idea of the present disclosure. Each drawing is for the purpose of conceptually explaining the present disclosure, and therefore dimensions, ratios or numbers may be exaggerated or simplified as necessary for ease of understanding.

(1) Overview of Decompression System A decompression system (1) is a system for decompressing an object to be decompressed (2). Here, the object to be thawed (2) is an object to be thawed by the thawing system (1), such as frozen food (meat, fish, etc.). The object to be thawed (2) of the present embodiment is chicken that has been stored in a bag and frozen. The temperature of the object (2) to be thawed in this embodiment is about -18°C.

The thawing system (1) of this embodiment is a differential pressure type thawing system. As shown in Figure 1, the thawing system (1) comprises a thawing chamber structure (3), a unit cooler (5), a differential pressure device (10), a carriage (20) and a refrigerating case (30). Prepare. A thawing chamber (4) is formed inside the thawing chamber structure (3). A unit cooler (5) and a differential pressure device (10) are installed in the thawing room (4). A trolley (20) and a refrigerating case (30) are arranged in the thawing room (4). The carriage (20) accommodates a plurality of items (2) to be thawed.

(1-1) Thawing Chamber Structure The thawing chamber structure (3) is shaped like a box. A door (not shown) is provided on one side of the thawing chamber structure (3). The door is for taking the trolley (20) and the refrigerating case (30) into and out of the thawing room (4).

(1-2) Unit cooler The unit cooler (5) corresponds to the temperature control device of the present disclosure. The unit cooler (5) is attached to the ceiling of the thawing chamber structure (3). A unit cooler (5) regulates the temperature of the thawing chamber (4). The temperature of the thawing chamber (4) is higher than the temperature of the items to be thawed (2). The temperature of the thawing chamber (4) of this embodiment is kept at about 5°C by the unit cooler (5).

(1-3) Differential pressure device The differential pressure device (10) creates a differential pressure between the space formed inside the differential pressure device (10) and the thawing chamber (4) to cause air flow. It is a device that defrosts objects (2) to be thawed by generating a flow of air and causing air to flow between a plurality of objects (2) to be thawed using this air flow.

A plurality of differential pressure devices (10) are arranged in the thawing chamber structure (3). In this embodiment, a plurality of differential pressure devices (10) are arranged along each of the two opposite sides of the thawing chamber structure (3). One differential pressure device (10) may be arranged in the thawing chamber (4). Alternatively, the differential pressure devices (10) may be arranged in an L-shape along each of two substantially orthogonal sides of the thawing chamber structure (3).

A differential pressure device (10) has a casing (11), a fan (12) and an airflow guide (14). In the following description, "up", "down", "left", "right", "front", and "back" are directions when the differential pressure device (10) is viewed from the front. The front of the differential pressure device (10) is the side on which the airflow guide (14) is provided.

(1-3-1) Casing The casing (11) is formed in a substantially rectangular parallelepiped shape elongated vertically. The casing (11) is shaped like a hollow box. An opening (17) is formed in the front side surface (11c) of the casing (11). The opening (17) is formed in a rectangular shape extending vertically. A carriage (20) is arranged in front of the opening (17). The carriage (20) is arranged such that its longitudinal direction coincides with the longitudinal direction of the casing (11).

A ventilation passage (18) is formed inside the casing (11). The air in the thawing chamber (4) flows through the ventilation path (18). As shown in FIG. 1, the ventilation passage (18) is a space extending vertically within the casing (11). The lower end (other end) of the ventilation passage (18) is closed by the lower surface (11b) of the casing (11). The ventilation passage (18) communicates with the opening (17).

(1-3-2) Fan The fan (12) circulates the air in the thawing chamber (4). The fan (12) conveys the air in the airway (18) of the casing (11) and the air passing through the carriage (20). A fan (12) is mounted on the casing (11). Specifically, the fan (12) is attached to the upper surface (11a) of the casing (11). The inside of the fan housing (H) containing the fan (12) communicates with the ventilation passage (18).

In this embodiment, the fan (12) is a propeller fan. Note that the fan (12) may be a fan other than a propeller fan. The rotation speed of the motor (M) of the fan (12) is variable. Motor (M) is a DC fan motor whose rotation speed is adjusted by a control circuit. The fan (12) is configured to have a variable air volume.

(1-3-3) Airflow Guide The airflow guide (14) is for adjusting the flow of air passing through the carriage (20). The airflow guide (14) is composed of a pair of flat plates facing each other. As shown in FIG. 1, the airflow guides (14) are provided on the left and right sides of the truck (20) when the truck (20) is placed in the thawing chamber (4). In other words, the carriage (20) is arranged so as to be sandwiched between the airflow guides (14).

The airflow guide (14) is attached to the front side surface (11c) of the casing (11). The airflow guide (14) is arranged to protrude forward from the front side surface (11c) of the casing (11). The airflow guide (14) is provided outside the opening (17) of the casing (11).

(1-4) Truck The thawing system (1) has a plurality of trucks (20). The number of trucks (20) is the same as the number of differential pressure devices (10), and they are arranged corresponding to each differential pressure device (10). As shown in FIGS. 2 and 3, the truck (20) is a so-called shelf truck. The carriage (20) is configured to be movable. The carriage (20) has a frame (21), wheels (22), a mounting portion (23), and a guide portion (26).

(1-4-1) Frame The frame (21) is formed in a substantially rectangular parallelepiped shape. The frame (21) is formed by combining rod-shaped members extending in the front-back direction, the left-right direction, and the up-down direction. The upper part of the frame (21) is closed with a flat plate. A space is formed inside the frame (21). The internal space of this frame (21) corresponds to the thawing space (S1) of the present disclosure.

(1-4-2) Wheels The truck (20) has four wheels (22). A wheel (22) is attached to each of the four corners at the lower end of the frame (21).

(1-4-3) Mounting Section The carriage (20) has a plurality of (six in this embodiment) mounting sections (23). The mounting portion (23) is provided in the internal space of the frame (21). The object to be defrosted (2) is placed on the placing portion (23). The plurality of receivers (23) are arranged with a space therebetween in the vertical direction.

A ventilation space (24) is formed between the placement portions (23). In other words, the plurality of items to be thawed (2) placed on the placing section (23) are arranged with a space therebetween in the vertical direction, and the ventilation space (24) is provided between the items to be thawed (2). is formed. As shown in FIG. 4, when the carriage (20) is arranged in front of the casing (11), the ventilation passage (18) communicates with the ventilation space (24).

As shown in FIG. 2, each mounting portion (23) is composed of a pair of support portions (25, 25). Each support (25) extends in the longitudinal direction of the carriage (20). Each support (25) is fixed to the frame (21) via a fixing member. Each support portion (25) of the present embodiment is composed of an angle member having an L-shaped cross section. The material to be thawed (2) is placed on the upper edge of the angle.

The pair of support portions (25, 25) are arranged substantially horizontally (horizontally) with a predetermined gap therebetween. The distance L between the pair of support portions (25, 25) is set to a length such that when the placed object (2) to be thawed is thawed, the object (2) will drop. As a result, when the object to be thawed (2) is thawed to an appropriate freezing rate, the object to be thawed (2) is softened and deformed, and the weight of the object to be thawed (2) causes a gap between the pair of support portions (25, 25). fall from

Here, the freezing rate is an index indicating the degree of progress of thawing. Specifically, the freeze rate is the weight percentage of water in the object that is in a frozen state. A lower freezing rate indicates more progress in thawing. Appropriate freezing rates vary from case to case. For example, when thawing chicken for deep-frying, the frozen chicken is thawed to a fully thawed state with a low freezing rate so as to facilitate cooking. On the other hand, when thawing beef for processing, for example, the frozen block-shaped beef is thawed to a semi-thawed state with an intermediate freezing rate so that the beef can be easily sliced.

The distance L between the pair of support parts (25, 25) is such that when the object to be thawed (2) has been thawed to an appropriate freezing rate (hereinafter referred to as the completion of thawing), the support part (25) begins to slide. set to a length similar to Specifically, the distance L between the pair of support portions (25, 25) is such that the static frictional force acts on the point of contact between the object to be thawed (2) and the support portion (25) during the thawing process. ) does not slip, but at the time of completion of thawing, the balance of friction at the contact points is lost and the object (2) to be thawed begins to slide.

As shown in FIGS. 2 and 5, the distance L between the pair of support portions (25, 25) is the inner end of the left support portion (25) and the inner end of the right support portion (25). is the length between In this embodiment, the distance L between the pair of support portions (25, 25) is approximately 200 mm.

The distance L between the pair of support parts (25) varies depending on the type, shape, size or thickness of the object (2) to be thawed. A distance L between the pair of support portions (25, 25) is configured to be changeable. The distance L between the pair of support parts (25, 25) is set in advance according to the object to be thawed (2). A distance L between the pair of support portions (25, 25) can be changed between 130 mm and 260 mm. Note that the distance L between the pair of support portions (25, 25) in this embodiment is the same for all the placement portions (23). The distance L between the pair of support portions (25, 25) in each placement portion (23) may be different.

(1-4-4) Guide Portion As shown in FIGS. 2 and 3, a guide portion (26) is arranged directly below the pair of support portions (25, 25). The guide part (26) receives the object to be thawed (2) that has been thawed and dropped from the support part (25). The guide part (26) guides the received object to be thawed (2) to the refrigerating case (30).

The carriage (20) has a plurality (six in this embodiment) of guide portions (26). The guide portion (26) is provided corresponding to the pair of support portions (25, 25). In other words, the number of guide portions (26) is the same as the number of pairs of support portions (25, 25) (placement portions (23)).

The guide portion (26) is made of a flat steel plate. As shown in FIG. 3, the guide portion (26) slopes downward toward the front end of the carriage (20) so as to approach the floor surface. The inclination angle (angle with respect to the horizontal direction) of the guide portion (26) is about 10°.

The width (horizontal length) of the guide portion (26) is longer than the interval between the pair of support portions (25, 25). The width of the guide portion (26) is substantially the same as the width of the internal space of the frame (21). The depth (length in the front-rear direction) of the guide portion (26) is longer than the length in the front-rear direction of the pair of support portions (25, 25). A front end of the guide portion (26) protrudes from the frame (21).

(1-5) Refrigeration Case The thawing system (1) has a plurality of refrigeration cases (30). The refrigerating case (30) is arranged in front of the carriage (20). Specifically, the refrigerating case (30) is arranged such that its longitudinal direction coincides with the longitudinal direction of the carriage (20). The number of refrigerating cases (30) arranged in the thawing chamber (4) is the same as the number of carts (20). In other words, the refrigerator case (30) is provided corresponding to the carriage (20).

The refrigerating case (30) is open at its top. A refrigerating space (31) is formed inside the refrigerating case (30). The refrigerating case (30) keeps the temperature of the refrigerating space (31) at a predetermined temperature. The refrigerating case (30) has a refrigerator that cools the refrigerating space (31). The refrigerator has a refrigerant circuit (not shown) that performs a refrigeration cycle, and the evaporator of the refrigerant circuit cools the air in the cold storage space (31). In the refrigerating case (30) of this embodiment, the temperature of the refrigerating space (31) is maintained at about -2°C.

The refrigerating case (30) of this embodiment is configured to be movable. Wheels (32) are attached to the four corners of the lower surface of the refrigerating case (30). This makes it easy to carry the refrigerating case (30) in and out of the thawing chamber (4).

(2) Thawing Device In the present embodiment, the trolley (20) and the refrigerating case (30) constitute a thawing device (D).

The defrosting device (D) has a main body (B). A thawing space (S1) for thawing the object (2) to be thawed and a storage space (S2) for storing the thawed object (2) are formed in the main body (B). It should be noted that in the storage space (S2) referred to here, the object to be thawed (2) is not thawed.

The main body (B) of the present embodiment is composed of the frame (21) of the truck (20) and the casing of the refrigerating case (30). The thawing space (S1) is composed of the internal space of the frame (21). The storage space (S2) is composed of a refrigerating space (31) of a refrigerating case (30).

Here, when the thawing device (D) composed of the carriage (20) and the refrigeration case (30) is viewed from above, the front end of the guide portion (26) of the carriage (20) overlaps the refrigeration space (31). ing. Therefore, the object to be thawed received by the guide portion (26) can be reliably transported to the refrigerating space (31).

(3) Operating Behavior Next, the operating behavior of the thawing system (1) will be described.

When the thawing system (1) starts operating, first the unit cooler (5) operates. When the unit cooler (5) operates, the temperature of the thawing chamber (4) is adjusted and maintained at a predetermined temperature.

The fan (12) of the differential pressure device (10) then rotates. When the fan (12) rotates, the air in the thawing chamber (4) is circulated. Specifically, as shown in FIG. 4, when the fan (12) rotates, the air in the thawing chamber (4), which has a higher temperature than the material to be thawed (2), is pushed out from the fan (12) to create a ventilation path. (18) flows downwards within.

The air flowing into the ventilation passage (18) flows into each ventilation space (24) of the truck (20) through the opening (17) of the casing (11). The air that has flowed into the ventilation space (24) flows forward between the objects to be thawed (2). At that time, heat is exchanged between the air passing through the ventilation space (24) and the object to be thawed (2). As a result, the object to be thawed (2) is gradually thawed. At the same time, the temperature of the air passing through the ventilation space (24) decreases. The air whose temperature has decreased after passing through the ventilation space (24) flows out into the thawing chamber (4), where the temperature is adjusted by the unit cooler (5).

(4) Thawing Method Next, a method of thawing the object (2) in the thawing device (D) will be described. In this thawing method, the first step, second step and third step described below are performed in order.

(4-1) First Step The first step is the step of thawing the object (2) on the pair of support portions (25, 25) of the thawing space (S1). Specifically, in the first step, as the thawing system (1) operates, air passing through the ventilation space (24) and the object to be thawed placed on the pair of supports (25, 25) (2) and the object to be thawed (2) is thawed. The object (2) to be thawed gradually softens as it is thawed.

Here, the pair of support portions (25, 25) are arranged with a space therebetween so that the object to be thawed (2) drops when the object to be thawed (2) is thawed. Therefore, as shown in FIG. 5, the object to be thawed (2) thawed on the pair of support portions (25, 25) is deformed so as to fall between the pair of support portions (25, 25). The softened and deformed object to be thawed (2) falls through the pair of support portions (25, 25) due to its own weight.

In this way, the object to be thawed (2) that has been thawed to an appropriate freezing rate automatically falls from the pair of support parts (25, 25), so that the thawed object (2) can be individually separated. There will be no need to collect the waste.

(4-2) Second Step In the second step, the object to be thawed (2) dropped from the support portion (25) is received by the guide portion (26) and conveyed to the refrigerating case (30). Specifically, in the second step, the defrosted object (2) dropped from the support (25) falls onto the guide (26). The object to be thawed (2) placed on the guide portion (26) is guided while sliding obliquely downward along the guide portion (26). The object to be thawed (2) that has reached the front end of the guide section (26) falls from the guide section (26) and enters the refrigeration space (31) of the refrigeration case (30) placed in front of the carriage (20). be transported.

In this way, the thawed material (2) is transported to the refrigeration case (30) by the guide (26), so that the thawed material (2) is reliably stored in the refrigeration case (30). be accommodated.

(4-3) Third Step In the third step, the object to be thawed (2) conveyed by the guide section (26) is stored in the refrigerating case (30). Specifically, in the third step, the object to be thawed (2) dropped from the guide portion (26) is received in the refrigerating space (31) of the refrigerating case (30) and refrigerated. Since the refrigerating case (30) can keep the temperature of the refrigerating space (31) at a predetermined temperature, the object to be thawed (2) stored in the refrigerating space (31) is stored while being maintained at an appropriate temperature. As a result, the freshness of the thawed material can be maintained.

As described above, by performing the first to third steps in the thawing device (D), the object to be thawed (2) thawed to an appropriate freezing rate is placed in the thawing space (S1) for a long time. Excessive thawing of the object to be thawed (2) can be suppressed because it is no longer exposed to warm air.

(5) Features (5-1)
In the thawing device (D) of the present embodiment, the distance L between the pair of support parts (25, 25) is such that the object (2) to be thawed falls when the object (2) is thawed. It is.

Therefore, when the object to be thawed (2) is thawed in the thawing space (S1), the object to be thawed (2) is gradually softened and deformed so as to fall between the pair of support portions (25, 25). The deformed object (2) to be thawed falls through the pair of support portions (25, 25) due to its own weight, and exits the thawing space (S1).

As a result, the object to be thawed to an appropriate freezing rate does not remain in the thawing space (S1), so that excessive thawing of the object to be thawed can be suppressed. Here, the freezing rate is an index indicating the degree of progress of thawing.

(5-2)
The pair of support portions (25, 25) of the present embodiment are configured such that the distance L between the support portions (25) can be changed. This allows for different types, shapes, sizes and thicknesses of thawed material (2).

(5-3)
In the main body (B) of the present embodiment, a storage space (S2) is further formed below the thawing space (S1) to store the thawed object (2). Thereby, the object to be thawed (2) that has been thawed and dropped from between the pair of support portions (25, 25) can be stored in the storage space (S2).

(5-4)
The thawing device (D) of this embodiment comprises a storage space (S2) and includes a refrigerating case (30) for maintaining the temperature of the storage space (S2) at a predetermined temperature. Therefore, the thawed object to be thawed is stored in the refrigerating case (30) while being maintained at an appropriate temperature. Thereby, the freshness of the thawed material (2) can be maintained.

(5-5)
The defrosting device (D) of the present embodiment is arranged under the pair of support parts (25, 25), receives the defrosted object (2) dropped from the support part (25), and ) is further provided with a guide portion (26). Therefore, the object to be thawed (2) dropped from the pair of support portions (25, 25) is guided to the storage space (S2) by the guide portion (26). This ensures that the thawed object (2) is stored in the storage space (S2).

(5-6)
In the thawing method of this embodiment, in the thawing space (S1), a pair of supporting parts are arranged with a gap such that the object to be thawed (2) drops when the object to be thawed (2) is thawed. a step of thawing the object to be thawed (2) on (25, 25); ), and a step of storing the object to be thawed (2) conveyed by the guide section (26) in a refrigerating case (30).

The object to be thawed (2) softens and deforms when thawed. Therefore, the thawed object (2) to be thawed falls through between the pair of support portions (25, 25) due to its own weight. The object to be thawed (2) dropped from the support portion (25) is received by the guide portion (26) and conveyed to the refrigerating case. The object to be thawed (2) that has reached the refrigerating case (30) is stored at an appropriate temperature in the refrigerating case. As a result, it is possible to suppress excessive thawing in the thawing space (S1) of the object to be thawed (2) that has been thawed to an appropriate freezing rate, and to keep the thawed object (2) at an appropriate temperature. can be stored while maintaining

(5-7)
A thawing system (1) of this embodiment includes a thawing device (D) and a temperature control device (5) that regulates the temperature of a thawing chamber (4) in which the thawing device (D) is installed. Thereby, a thawing system (1) comprising a thawing device (D) and a temperature control device (5) can be provided.

(6) Modifications The above embodiment may be modified as follows. In addition, in the following description, in principle, points different from the above embodiment will be described.

(6-1) Modification 1
Each support (25) may be made of something other than angle material. For example, each support (25) may consist of a pipe, a round bar, or a square bar. Further, each support part (25) may be a protruding part that is formed integrally with the frame (21) of the carriage (20) and protrudes from the frame (21).

(6-2) Modification 2
The pair of support portions (25, 25) may be provided at locations other than the carriage (20). For example, the pair of supports (25, 25) may be provided in the differential pressure device (10). In this case, the pair of supports (25, 25) are fixed to the front side (11c) of the differential pressure device (10) and extend forward from the front side (11c). In this case, the thawing device (D) is composed of a differential pressure device (10) and a refrigerating case (30).

(6-3) Modification 3
The defrosting device (D) may comprise a shelf without wheels instead of the trolley (20). In this case, the object to be thawed (2) is placed on the placing section (23) by the operator in the thawing chamber (4). Then, the thawed object (2) is stored in the refrigerating case (30) and carried out of the thawing chamber (4) together with the refrigerating case (30).

(6-4) Modification 4
The thawing system (1) of this embodiment includes a refrigeration case (30) forming a storage space (S2), but the thawing system (1) does not have to include the storage space (S2). In this case, for example, instead of the refrigerator case (30), a belt conveyor may be installed in front of the truck (20). After being thawed, the object to be thawed (2) falls from the guide portion (26), lands on the belt conveyor, and is carried out of the thawing chamber (4) by the belt conveyor.

(6-5) Modification 5
The thawing system (1) of the present embodiment may be a thawing system of a method other than the differential pressure method by pushing air. For example, it is a differential pressure thawing system by suction that causes the air in the thawing chamber (4) to flow into the ventilation space (24) through the ventilation space (24) by reversing the blowing direction of the fan (12). may

Alternatively, the thawing system may employ a method in which moisture is condensed on the surface of the object to be thawed (2) by irradiation with near-infrared rays, far-infrared rays, microwaves, or high frequencies, or by humidification, and heat is transferred. When a refrigerating case (30) is used in such a thawing system, the thawed object (2) is stored in the refrigerating case (30) to thaw the object (2). The thawed material (2) is shielded from infrared rays, microwaves, or radio waves that are emitted, or moisture that is emitted. This makes it possible to further maintain the freshness of the object (2) to be thawed.
Also in this case, the same effects as in the present embodiment can be obtained.

Although embodiments and variations have been described above, it will be appreciated that various changes in form and detail may be made without departing from the spirit and scope of the claims. In addition, the elements according to the above embodiments, modifications, and other embodiments may be appropriately combined or replaced.

INDUSTRIAL APPLICABILITY As described above, the present disclosure is useful for decompression devices and systems.

1 decompression system
2 Thawed material
4 thawing chamber
5 Unit cooler (temperature control device)
25 support
26 Guide
30 refrigerated cases
B Body
D defrosting device
S1 decompression space
S2 storage space

Claims (7)

Equipped with a main body (B) in which a thawing space (S1) for thawing the object to be thawed (2) is formed,
The thawing space (S1) is provided with a pair of support portions (25, 25) arranged at a predetermined interval in the horizontal direction and on which the object to be thawed (2) is placed,
An interval L between the pair of support parts (25, 25) is a length such that the object (2) to be thawed falls when the object (2) is thawed. The defrosting device according to claim 1, wherein the pair of support portions (25, 25) are configured such that a distance L between the support portions (25) can be changed. A storage space (S2) is further formed in the main body (B) under the thawing space (S1) to store the thawed object (2). The defrosting device described in . The thawing device according to claim 3, comprising a refrigerating case (30) that constitutes the storage space (S2) and keeps the temperature of the storage space (S2) at a predetermined temperature. a guide portion ( 26). In the thawing space (S1), on a pair of support parts (25, 25) spaced apart so that the object (2) to be thawed falls when the object (2) is thawed a step of thawing the material to be thawed (2);
a step of receiving the object to be thawed (2) dropped from the support portion (25) by a guide portion (26) and transporting it to a refrigerating case (30);
and storing the object to be thawed (2) transported by the guide part (26) in a refrigerating case (30). a thawing device (D) according to any one of claims 1 to 5;
and a temperature control device (5) for controlling the temperature of a thawing chamber (4) in which the thawing device (D) is installed.