JP2017125648A - Cooling container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling container which does not scatter water supplied into a cooling chamber, and moreover, can set the humidity of air for cooling fruits and vegetables to optimum humidity according to the kind of fruits and vegetables.SOLUTION: A cooling unit 20 has: a water supply part 21 which cools the water stored in a bottom of a cooling chamber 13 by a heat exchange part of a cooling cycle 30 and introduces it into the cooling chamber and supplies it toward the bottom of the cooling chamber; a type determination part 47 which determines the type of fruits and vegetables contained in a container body; and a control part 46 which controls the state of the water supplied from the water supply part by controlling the operation of the cooling cycle so that the humidity of the air in the container body according to the type of the fruits or vegetables determined by the type determination part is optimized.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cooling container that can accommodate and cool fruits and vegetables such as vegetables, fruits and flowers.

  Fruits and vegetables still live after harvesting, but in order to keep their freshness long, it is necessary to suppress respiratory action as soon as possible after harvesting. In the cooling method of vegetables among fruits and vegetables, for example, cold air is circulated in a refrigerator that contains vegetables, and the cold air that has cooled vegetables is re-cooled and circulated by a heat exchanger of a cooling device provided in the refrigerator. There is a way. In this cooling method, when the temperature of the air in the refrigerator decreases, the amount of saturated water vapor in the air decreases accordingly, and the moisture of the vegetables may evaporate and the vegetables may be lost.

  Therefore, in order to enable a high humidity state at low temperatures, a cooling method in which water is brought into direct contact with air has been proposed (see Patent Document 1). The cooling method described in Patent Document 1 includes a refrigerant flow path through which a low-temperature refrigerant flows in a cooling chamber installed in a container in which vegetables and the like are stored, and above the air in the container sucked into the cooling chamber. The air is cooled by the latent heat of vaporization of the refrigerant that flows around the refrigerant flow path during the movement to. At the same time, water stored in the bottom of the cooling chamber is sprinkled from above the cooling chamber, and the air and water can be directly contacted to increase the humidity of the air.

Utility Model Registration No. 3199521

  The water supplied to the air is sprinkled with the water pumped up in the cooling chamber being squeezed from the upper position, so that the water may become a fine mist and scatter and cause inconvenience. There is.

  In addition, since the water supplied to the air drops the water pumped from the upper position, the temperature of the water is not supervised at all. And since evaporation of water is related to each temperature of water and air, there exists a possibility that the humidity of air cannot be controlled.

  In addition, it is known that the optimum conditions of humidity (early retreat humidity) differ depending on the type of fruits and vegetables. For this reason, there is a possibility that the optimum humidity cannot be achieved depending on the type of fruits and vegetables simply by supplying the water stored in the cooling chamber to the air as it is.

  At least one embodiment of the present invention is an invention made on the basis of such a state of the art, and the object of the invention is to scatter water supplied in a cooling chamber in the form of a mist. It is an object of the present invention to provide a cooling container that has no fear and that can adjust the humidity of air for cooling fruits and vegetables to an optimum humidity according to the type of the fruits and vegetables.

A cooling container according to at least one embodiment of the present invention comprises:
A container main body configured using a heat insulating material and extending in a rectangular shape in the lateral direction; and a cooling device provided in the container main body inside an end wall on one end side in the longitudinal direction of the container main body, and the cooling The apparatus has a box-shaped cooling chamber disposed on one end side in the longitudinal direction in the container body and extending in the vertical direction, and a cooling cycle disposed outside the cooling chamber, A suction port provided in a lower portion on the other end side of the cooling chamber and communicating with the inside of the container body, and an air provided in an upper portion on the other end side of the cooling chamber and sucked from the suction port to rise. A cooling container having an air outlet that blows out and a cooling portion provided between the air inlet and the air outlet in the cooling chamber,
The cooling unit has a water supply unit that cools the water stored in the bottom of the cooling chamber by the heat exchange unit of the cooling cycle, guides the water into the cooling chamber, and supplies the water toward the bottom of the cooling chamber.
A type determining unit for determining the type of fruit and vegetables contained in the container body;
The state of the water supplied from the water supply unit by controlling the operation of the cooling cycle so as to optimize the humidity of the air in the container body according to the type of fruits and vegetables determined by the type determination unit. And a control unit for controlling.

  According to the cooling container described in (1) above, the cooling unit cools the water stored in the bottom of the cooling chamber by the heat exchange unit of the cooling cycle, guides it to the cooling chamber, and supplies the water toward the bottom of the cooling chamber. A water supply unit, a type determination unit for determining the type of fruits and vegetables accommodated in the container body, and the humidity of the air in the container body according to the type of fruits and vegetables determined by the type determination unit is optimized And a control unit that controls the operation of the cooling cycle to control the state of the water supplied from the water supply unit. The water cooled by the heat exchange part of the cooling cycle cools the air by exchanging heat with the air that is supplied downward through the water supply part and rises. At the time of heat exchange between the cooled water and air, since the water and air are in direct contact within the cooling section, heat exchange efficiency is good and mass transfer is involved. For example, water vapor in the air condenses or evaporates. For this reason, the absolute humidity of the air at the outlet and the water spray temperature of the water supplied from the water supply unit have a close relationship. On the other hand, the air temperature in the container body is mainly determined by the amount of air circulation circulating in the container body. That is, it depends on the amount of air passing through the cooling unit. For this reason, while being able to control humidity with watering temperature, it becomes possible to control temperature with the amount of circulating air. Therefore, the cooling container which can make air the optimal humidity according to the kind of fruit and vegetables to be cooled can be realized.

(2) In some embodiments, in the cooling container according to (1) above,
The control unit is cooled by the heat exchange unit of the cooling cycle and supplied from the water supply unit so that the humidity of the air according to the type of fruits and vegetables determined by the type determination unit is optimized. Control water temperature

  According to the cooling container described in (2) above, the control unit is cooled by the heat exchange unit of the cooling cycle so that the humidity of the air according to the type of fruit and vegetable determined by the type determination unit is optimized. The temperature of water supplied from the water supply unit is controlled. Water condensation is related to the temperature of the supplied water. For this reason, since the amount of water condensation can be controlled by controlling the temperature of water, the humidity of air can be adjusted. Therefore, air can be made into the optimal humidity according to the kind of fruit and vegetables to be cooled.

(3) In some embodiments, in the cooling container according to (1) or (2) above,
Between the cooling chamber and the heat exchange unit, a communication path including a pump for sending water stored in the bottom of the cooling chamber to the heat exchange unit of the cooling cycle is provided,
The control unit is configured to control the amount of water discharged from the pump and the temperature of the water so that the humidity of the air according to the type of fruits and vegetables determined by the type determination unit is optimized.

  According to the cooling container described in the above (3), a communication path including a pump for sending water stored in the bottom of the cooling chamber to the heat exchanging portion of the cooling cycle is provided between the cooling chamber and the heat exchanging portion. Provided. And a control part is comprised so that the humidity of the air according to the kind of fruit and vegetables judged by the kind judgment part may become optimal, and the water quantity discharged from a pump and the temperature of water are controlled. When the flow rate of water discharged from the pump is changed, the flow rate of water supplied to the heat exchange unit is changed. For this reason, the heat exchange amount of the water in a heat exchange part can be changed according to the flow volume of water. The temperature of the water to be cooled is determined by load control of the cooling cycle. For this reason, since the temperature of the water supplied from the water supply unit can be controlled, the amount of water condensed in the rising air can be controlled, and the humidity of the air can be adjusted.

(4) In some embodiments, in the cooling container according to any one of (1) to (3) above,
The cooling chamber is provided with a fan that is arranged at a position above the introduction pipe of the water supply unit and moves air sucked from the suction port upward in the cooling chamber,
In the container body, a temperature detection unit for detecting the temperature of air in the container body is provided,
The said control part is comprised so that the rotation speed of the said fan may be controlled so that the temperature of the air according to the kind of fruit and vegetables judged by the said kind judgment part may become optimal.

  According to the cooling container described in (4) above, the cooling chamber is disposed at a position above the introduction pipe of the water supply unit, and the air sucked from the suction port is moved upward in the cooling chamber. A fan is provided. And the temperature detection part which detects the temperature of the air in a container main body is provided in the container main body. And a control part controls the rotation speed of a fan so that the temperature of the air according to the kind of fruit and vegetables judged by the kind judgment part becomes the optimal. It is known that the temperature suitable for storage of fruits and vegetables varies depending on the types of fruits and vegetables as well as humidity. For this reason, by controlling the number of rotations of the fan according to the type of fruits and vegetables, the flow rate of the air supplied into the container body can be changed to change the temperature of the air in the container body. Therefore, by controlling the rotation speed of the fan, the air in the container body can be brought to a temperature optimum for the type of fruit and vegetables.

(5) In some embodiments, in the cooling container according to (1) above,
The cooling part receives water supplied from the water supply part and moves downward while receiving and dispersing water, and
Heat exchange filler disposed below the water flow dispersion filler, receiving water flowing out of the water flow dispersion filler, and bringing the water into contact with the rising air sucked from the suction port And is configured.

  According to the cooling container described in the above (5), the cooling unit receives the water supplied from the water supply unit and moves downward while receiving and dispersing the water, and the water flow dispersion filler. And a heat exchange filler that is disposed below and receives water flowing out from the water-dispersing filler and brings the water into contact with the rising air sucked from the suction port. The water cooled by the heat exchange part of the cooling cycle is supplied downward through the water supply part. The cooled water is received by the water flow dispersion filler and moves downward while being dispersed. For this reason, in order to expand contact between water and air, it is not necessary to diffuse and eject water supplied from the water supply unit. Accordingly, it is possible to prevent the supplied water from being misted and to prevent the occurrence of inconvenience due to the misted water. Further, the water received in the water flow dispersion filler spreads in the width direction of the water flow dispersion filler and falls. For this reason, water can be uniformly dropped from the lower surface of the filler for water flow dispersion, and water can be supplied uniformly to the upper surface of the filler for heat exchange. Further, the water supplied to the heat exchange filler moves downward in the heat exchange filler and cools the air by exchanging heat with the rising air. Here, since the water supplied to the heat exchange filler is uniformly supplied to the upper surface of the heat exchange filler, the water moving in the heat exchange filler also crosses the heat exchange filler. Moves uniformly with respect to the surface. For this reason, while the frequency with which water and air contact improves, the heat exchange efficiency between water and air can be improved, and the humidity of low-temperature air can be raised higher. Furthermore, the occurrence of inadvertent splashes can be prevented. And the cooled rising air permeate | transmits the filler for heat exchange and the filler for water flow dispersion | distribution, and is returned in a container main body from a blower outlet. Therefore, it is possible to realize a cooling container in which the water supplied in the cooling chamber is not likely to be scattered in the form of a mist.

(6) In some embodiments, in the cooling container according to (5) above,
The water supply unit includes an introduction pipe that guides the cooled water into the cooling chamber, and a lower surface of the introduction pipe that is provided at a predetermined interval in a longitudinal direction of the introduction pipe and that supplies the cooled water to the water flow A plurality of holes that spontaneously drop toward the filler for dispersion.

  According to the cooling container described in (6) above, the water supply unit is provided with an introduction pipe that guides the cooled water into the cooling chamber, and a lower surface of the introduction pipe with a predetermined interval in the longitudinal direction of the introduction pipe. A plurality of holes for naturally dropping the cooled water toward the water flow dispersion filler. The water cooled in the cooling cycle is introduced into the cooling chamber through the introduction pipe and spontaneously falls downward from the plurality of holes. For this reason, since the cooled water can be dropped gently, generation | occurrence | production of splash can be prevented.

(7) In some embodiments, in the cooling container according to (5) above,
The water flow dispersion filler is configured to disperse the cooled water sprayed from the water supply unit in the width direction of the water flow dispersion filler and to move downward. Is done.

  According to the cooling container as described in (7) above, the water flow dispersion filler can disperse the cooled water supplied from the water supply section in the width direction of the dispersion filler and move downward. Therefore, it is not necessary to uniformly supply water in the width direction of the cooling chamber, so that the number of introduction pipes for supplying water can be reduced. For this reason, the pressure loss of the rising air can be reduced, and the cost can be reduced.

  According to at least some embodiments of the present invention, the water supplied in the cooling chamber is not likely to be scattered in the form of a mist, and the humidity of the air for cooling the fruits and vegetables is optimal according to the type of the fruits and vegetables. A cooling container that can be humidified can be provided.

It is a sectional structure figure of a cooling container concerning one embodiment of the present invention. It is a schematic block diagram of the cooling device concerning one Embodiment of this invention. It is sectional drawing of the longitudinal direction of the blowing duct provided in the cooling container. It is a cross-sectional structure figure of the transversal direction of a blowing duct.

  Embodiments of the present invention will be described below with reference to FIGS. 1 to 4 with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in this embodiment are not intended to limit the scope of the present invention to that unless otherwise specified.

  For example, expressions expressing relative or absolute arrangements such as “in a certain direction”, “along a certain direction”, “parallel”, “orthogonal”, “center”, “concentric” or “coaxial” are strictly In addition to such an arrangement, it is also possible to represent a state of relative displacement with an angle or a distance such that tolerance or the same function can be obtained.

  For example, an expression indicating that things such as “identical”, “equal”, and “homogeneous” are in an equal state not only represents an exactly equal state, but also has a tolerance or a difference that can provide the same function. It also represents the existing state.

  For example, expressions representing shapes such as quadrangular shapes and cylindrical shapes represent not only geometrically strict shapes such as quadrangular shapes and cylindrical shapes, but also irregularities and chamfers as long as the same effects can be obtained. A shape including a part or the like is also expressed.

  On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one constituent element are not exclusive expressions for excluding the existence of the other constituent elements.

  In the following description, the same components may be denoted by the same reference numerals and detailed description thereof may be omitted.

  FIG. 1 is a sectional structural view of a cooling container according to an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram of a cooling device according to an embodiment of the present invention.

  As shown in FIGS. 1 and 2, the cooling container 1 according to the present embodiment includes a container body 5 that is configured using a heat insulating material and extends in a rectangular shape in the lateral direction, and an end wall on one end side in the longitudinal direction of the container body 5. A cooling device 10 provided in the container main body 5 inside 5a, and the cooling device 10 is disposed on one end side in the longitudinal direction in the container main body 5 and has a box-shaped cooling chamber 13 extending in the vertical direction. A cooling cycle 30 disposed outside the cooling chamber 13, the cooling chamber 13 being provided at a lower portion on the other end side of the cooling chamber 13 and communicating with the inside of the container body 5, and cooling Between the air outlet 13b provided in the upper part of the other end side of the chamber 13 and blowing the air A that is sucked and raised from the air inlet 13a into the container body 5, and between the air inlet 13a and the air outlet 13b in the cooling chamber 10 And a cooling unit 20 provided in In the rejection container 1, the cooling unit 20 cools the water W stored in the bottom of the cooling chamber 13 by the heat exchange unit 41 of the cooling cycle 30, and guides the cooled water into the cooling chamber 13 to cool the cooling chamber 13. A water supply unit 21 that supplies water toward the bottom of the container, and a type determination unit 47 that determines the type of the fruits and vegetables f accommodated in the container body 5, and the type of the fruits and vegetables f determined by the type determination unit 47 A control unit 46 that controls the operation of the cooling cycle 30 to control the state of the water W supplied from the water supply unit 21 so that the humidity of the air A in the container body 5 is optimized. It is configured.

  The container body 5 is formed in a box shape (cuboid shape) by a wall plate 6 having heat insulation properties. A cargo space 5b that can accommodate the fruits and vegetables f is formed inside the container body 5. A loading / unloading door (not shown) is provided on the end wall 5c at the other end in the longitudinal direction of the container body 5 so that the fruits and vegetables f can be loaded and unloaded. The carry-in / out door is, for example, a kannon door, and when the carry-in / out door is opened, one end in the longitudinal direction of the container main body 5 opens greatly. A cooling device 10 is installed on one end side of the container body 5.

  As shown in FIG. 2, the cooling device 10 includes a refrigerant circuit 31 in which a refrigerant (for example, ammonia) circulates. In FIG. 2, the refrigerant circuit 31 is illustrated on the other side in the width direction of the cooling chamber 13 in order to facilitate understanding of the configuration of the refrigerant circuit 31. The refrigerant circuit 31 is provided with a cooling cycle 30 including a compressor 33, a condenser 35, a liquid receiver 37, an expansion valve 39, and a heat exchange unit 41. In the illustrated embodiment, the cooling cycle 30 is provided in a cooling box 43 formed in a box shape to be unitized, and is disposed below the cooling chamber 13 (see FIG. 1).

The condenser 35 is provided with a heat transfer tube 35 a that snakes in communication with the refrigerant circuit 31. In the illustrated embodiment, the heat transfer tube 35 a is described in a non-communication state with the refrigerant circuit 31 in the description of the drawings. The heat transfer pipe 35a is disposed on the outside air passage formed by, for example, a fan installed above the condenser 35, and the NH ₃ gas flowing through the heat transfer pipe 35a is condensed by being deprived of heat by the outside air. _{The three-} gas cooling capacity is improved.

  The cooling chamber 13 is formed in a rectangular tube shape and extends in the vertical direction, and a storage portion 15 in which water W cooled by the cooling cycle 30 is stored is formed in the lower portion of the cooling chamber 13. In the illustrated embodiment, the storage portion 15 is formed in a convex shape such that the side walls 15a opposed to each other approach as they extend downward. For this reason, the water W stored in the storage unit 15 can be collected in the lower top portion 15 b of the storage unit 15. Connected to the lower top portion 15 b of the storage portion 15 is a communication path 16 for sending the water W stored in the storage portion 15 to the heat exchanging portion 41 of the cooling cycle 30. The communication path 16 is provided with a pump 17 for forcibly sending water W accumulated in the storage section 15 to the heat exchange section 41 side.

  A suction port 13 a is formed in the lower portion of the side wall 13 c on one side of the cooling chamber 13. In the illustrated embodiment, the suction port 13 a is provided at a position above the storage unit 15. The cargo space 5b in the container body 5 and the inside of the cooling chamber 13 communicate with each other through the suction port 13a.

  An air outlet 13b is formed in the upper part of the side wall 13c on one side of the cooling chamber 13. A blowout duct 50 communicates with the blowout port 13b. The blowout duct 50 sends out the cooled air A blown out from the blowout port 13 b into the cargo space 5 b in the container main body 5. For this reason, the air A sucked from the suction port 13a forms a circulation path that is returned to the cargo space 5b in the container body 5 through the blowout port 13b and the blowout duct 50 as rising air.

  A cooling unit 20 is provided at an intermediate portion in the vertical direction of the cooling chamber 13. The cooling unit 20 is disposed between the inlet 13 a and the outlet 13 b in the cooling chamber 13. The cooling unit 20 includes a water supply unit 21, a water flow dispersion filler 23, and a heat exchange filler 25 from the top to the bottom.

  The water supply unit 21 has an introduction pipe 22 that guides the water W cooled by the cooling cycle 30 (heat exchange unit 41) into the cooling chamber 13, and a lower surface of the introduction pipe 22 at a predetermined interval in the longitudinal direction of the introduction pipe. And a plurality of hole portions 22a that naturally drop the cooled water provided toward the water dispersion filler 23.

  The introduction pipe 22 is installed extending from one end in the width direction in the cooling chamber 13 to a position near the other end. In the illustrated embodiment, one introduction pipe 22 is shown. However, a plurality of introduction pipes 22 may be installed in the cooling chamber 13 in accordance with the size of the water flow dispersion filler 23. . A plurality of holes 22 a for allowing the cooled water to fall naturally is provided on the lower surface of the introduction pipe 22. The holes 22 a are provided at a predetermined interval in the longitudinal direction of the introduction tube 22. The hole portion 22a only needs to be formed so that water can fall naturally, and the opening shape of the hole portion may be any of a circle, a rectangle, an ellipse, and the like.

  One end of the introduction pipe 22 opens and communicates with the heat transfer pipe 41a in the heat exchange section 41 of the refrigerant circuit 31 through the joint 14 provided on the side wall 13c on the one side in the cooling chamber 13. The heat transfer tube 41 a and the joint 14 communicate with each other via the communication path 18. The other end of the introduction tube 22 is closed. For this reason, the water that has flowed into the introduction pipe 22 flows in the introduction pipe 22 from one end side to the other end side and flows out downward from the plurality of hole portions 22a.

  The water flow dispersion filler 23 is formed in a mesh shape and a rectangular parallelepiped shape, and is in close contact with the entire circumference of the inner surface of the side wall 13c of the cooling chamber 13 formed in a rectangular tube shape. The water-dispersing filler 23 is configured to move downward while receiving the water W supplied by being naturally dropped from the introduction pipe 22 while being dispersed in the width direction of the water-dispersing filler 23. Yes. In the illustrated embodiment, when the water W falls on the upper surface 23a of the water-dispersing filler 23, the water W is radially dispersed and moved downward. For this reason, by providing the plurality of holes 22 a in the introduction pipe 22, the water W supplied from the introduction pipe 22 can be uniformly dispersed in the width direction of the water flow dispersion filler 23.

  The heat exchange filler 25 is disposed below the water flow dispersion filler 23, receives the water W flowing out from the water flow dispersion filler 23, is sucked from the water W and the suction port 13a, and rises. Air A is cooled by heat exchange with A. Like the water flow dispersion filler 23, the heat exchange filler 25 is formed in a mesh shape and a rectangular parallelepiped shape, and is in close contact with the entire inner surface of the side wall 13c of the cooling chamber 13 formed in a rectangular tube shape. Installed. The heat exchange filler 25 has a sufficiently wide passage to cool the rising air while the water W falls through the heat exchange filler 25. The material of the heat exchange filler 25 is formed of vinyl chloride, wood, bamboo, ceramics, or the like.

  The cooling cycle 30 is configured such that the temperature of the water W to be cooled can be adjusted. In the illustrated embodiment, for example, the evaporation temperature of the heat exchange unit 41 can be changed by changing the compression ratio of the compressor 33. Therefore, the temperature of the water W can be changed by changing the amount of heat exchange between the water W and the refrigerant in the heat exchange unit 41. The operation of the cooling cycle 30 is controlled by the control unit 46.

  A fan 19 is disposed in the cooling chamber 13 at a position above the introduction pipe 22 of the water supply unit 21 and moves the air A sucked from the suction port 13a upward in the cooling chamber 13. In the container main body 5, a temperature detection unit 45 for detecting the temperature of the air A in the container main body 5 is provided.

  The cooling container 1 is provided with a type determining unit 47 that determines the type of fruits and vegetables f stored in the container body 5. The type determination unit 47 sets a switch corresponding to the type of fruits and vegetables accommodated in the container body 5 such as cabbage, carrot, orange, rose, etc., on the display screen of a personal computer or the like. When any one of the plurality of switches on the screen is selected, it is configured to determine that the type of the fruit f corresponding to the selected switch is selected.

  The control unit 46 is cooled by the heat exchange unit 41 of the cooling cycle 30 and supplied from the water supply unit 21 so that the humidity of the air A according to the type of the fruit f determined by the type determination unit 47 is optimized. The amount of water discharged from the pump 17 and the water so that the humidity of the air A according to the type of the fruits and vegetables f determined by the type determining unit 47 is optimized. It is configured to control the temperature. Further, the control unit 46 is configured to be able to control the rotation speed of the fan 19 in accordance with the detection value of the temperature detection unit 45 so that the temperature of the air in the container body 5 is optimized.

  In the control unit 46, the optimum humidity and the optimum temperature of the air A corresponding to the type of the fruits and vegetables f are stored in advance. Further, the control unit 46 stores in advance the humidity of the air A corresponding to the temperature of the water cooled by the heat exchange unit 41. In the cooling chamber 13, the water supplied downward via the water supply unit 21 exchanges heat with the rising air to cool the air, but at the time of heat exchange between the cooled water and the air, The air is cooled by. Here, the condensation of water relates to, for example, the temperature of water and air, the flow rate of water, the flow rate of air, and the like. For this reason, the amount of water condensation can be controlled by controlling the temperature of the water, and therefore the humidity of the air can be adjusted. For this reason, the control part 46 can control the temperature of the water cooled by the heat exchange part 41 so that the humidity of the air A according to the kind of fruit and vegetables f turns into an optimal humidity. Moreover, since the temperature of the air in the container main body 5 can be adjusted by adjusting the flow rate of the air supplied into the container main body 5, the control unit 46 controls the rotational speed of the fan 19. The temperature of the air A corresponding to the type of the fruits and vegetables f can be made the optimum temperature.

  In the illustrated embodiment, the fan 19 is disposed at a position higher than the water flow dispersion filler 23. The temperature detector 45 is provided in the container body 5. The fan 19 and the temperature detector 45 are electrically connected to the controller 46. The control unit 46 controls the rotational speed of the fan 19 so that the temperature detected by the temperature detection unit 45 becomes a desired temperature. For example, when the detection value from the temperature detection unit 45 is lower than the desired temperature, the rotational speed of the fan 19 is increased, and when the detection value from the temperature detection unit 45 is higher than the desired temperature, the rotation of the fan 19 is increased. Decrease the number.

  FIG. 3 is a longitudinal sectional view of the blowing duct 50 provided in the cooling container 1, and FIG. 4 is a sectional view of the blowing duct 50 in the short direction.

  As shown in FIG. 1, a blowing duct 50 is disposed on the upper portion of the container body 5. As shown in FIG. 3, the blowout duct 50 extends in the longitudinal direction of the container body 5 along the inner surface of the upper wall plate 6 of the container body 5, and one end of the blowout duct 50 communicates with the blowout port 13b. ing. The blowout duct 50 is made of a resin cloth with clogged knitted with resin yarn. By discharging the cooled air A from the clogged eyes, the air A can be uniformly dispersed in the longitudinal direction of the blowing duct 50. However, since the hole through which the air A is discharged is a clogged portion knitted with resin yarn, the air pressure loss increases.

  Therefore, in the illustrated embodiment, a non-discharge portion 51 that cannot discharge air at predetermined intervals with respect to the longitudinal direction of the blowing duct 50 is provided. For this reason, since the area | region of the clogged part (henceforth "the discharge part 52") with a large pressure loss reduces, the pressure loss of the air which flows through the blowing duct 50 can be reduced. The non-discharge portion 51 is formed by applying a resin to a duct portion made of a resin cloth to close the hole, or attaching a resin plate to close the hole.

  By using such a blowout duct 50 made of a resin cloth, the air cooled in the container body 5 can be supplied uniformly in the longitudinal direction of the blowout duct 50.

  As shown in FIG. 4A, the cross-sectional structure of the blowout duct 50 is formed in a rectangular shape so that air A is discharged from the lower surface 50a of the duct, or as shown in FIG. The air A is discharged from the lower side surface 50b of the blow-out duct 50, or is formed in a circular shape and has a lower semicircle 50c as shown in FIG. 4 (c). Air A may be discharged from the air.

  As shown in FIG. 1, fruits and vegetables f such as vegetables, fruits, and flowers are accommodated in the cooling container 1 configured as described above. The fruits and vegetables f are accommodated in a mesh box container 60 in which a large number of holes that allow ventilation are formed on the wall surface. In the illustrated embodiment, the mesh box containers 60 containing the fruits and vegetables f are stacked in a plurality of stages and stored in a plurality of rows in the longitudinal direction of the cooling container 1.

  When the cooling device 10 is driven, as shown in FIGS. 1 and 2, the air A that has flowed into the cooling chamber 13 of the cooling device 10 from the suction port 13 a becomes an ascending current and passes through the heat exchange filler 25. To do. When the air A passes through the heat exchange filler 25, the air A is cooled by the latent heat of vaporization of the cooled water W supplied from the introduction pipe 22, and the water W supplied from the introduction pipe 22 and falls. It becomes a state close to saturated water vapor. Since the water W supplied from the introduction pipe 22 is supplied so as to fall naturally, the cooled water W can be gently dropped and the generation of splashes can be prevented.

  Further, since the cooled water W is received by the water flow dispersion filler 23 and moves downward while being dispersed, it is not necessary to spray the water W supplied from the water supply unit 21 so as to diffuse. Therefore, it is possible to prevent the supplied water W from being misted, and to prevent inconveniences caused by the misted water. Further, the water W received in the water flow dispersion filler 23 spreads in the width direction of the water flow dispersion filler 23 and falls. For this reason, water can be uniformly dropped from the lower surface 23 b of the water flow dispersion filler 23, and the water W can be supplied uniformly to the upper surface 25 a of the heat exchange filler 25. Further, the water flow filler 23 is configured to disperse the cooled water supplied from the water supply unit 21 in the width direction of the water flow filler 23 and to move downward. The number of introduction pipes 22 for supplying water W can be reduced. For this reason, the pressure loss of the rising air can be reduced, and the cost can be reduced.

  Further, since the water W supplied to the heat exchange filler 25 is uniformly supplied to the upper surface 25a of the heat exchange filler 25, the water W moving in the heat exchange filler 25 is also heat exchanged. It moves uniformly with respect to the cross section of the filler 25 for use. For this reason, the heat exchange efficiency between the water W and the air A can be improved, and inadvertent generation of splashes can be prevented.

  And the air A which became a low temperature and high humidity state passes through the water-flow dispersion | distribution filler 23, and is blown off from the blower outlet 13b, as shown in FIG.1 and FIG.3. The air A blown out from the blower outlet 13b flows through the blowout duct 50 and is blown out downward from a plurality of discharge portions 52 arranged in the longitudinal direction of the blowout duct 50 from the upper side of the container body 5. Then, the downwardly directed air A flows through the ventilation spaces in the plurality of mesh box containers 60 loaded in the cargo space 5b, and passes through the circulation flow path 61 formed in the lower part of the container body 5 and flowing toward the suction port 13a. To return to the suction port 13a. In the embodiment of FIG. 3, a fan 62 is provided for forcibly sending the air flowing through the circulation flow path 61 to the suction port 13a.

  In addition, it is known that the optimum condition of humidity (relative humidity) varies depending on the type of the fruits and vegetables f. In this embodiment, the temperature of the water W cooled by the heat exchange unit 41 of the cooling cycle 30 is Is changed, the humidity of the air A can be changed in relation to the temperature of the air A rising in the cooling chamber 13. For example, when the temperature of the water W to be cooled is set to be low, the humidity of the air A is low, and when the temperature of the water W to be cooled is set to be high, the humidity of the air A is high. For this reason, air A can be made into the optimal humidity according to the kind of fruits and vegetables f used as cooling object.

  Moreover, it is known that the temperature suitable for storage of fruit and vegetables f changes with kinds of fruit and vegetables f similarly to humidity. For this reason, according to the kind of fruit and vegetables f, the control part 46 controls the rotation speed of the fan 19 according to the detected value of the temperature detection part 45, and the air A in the container main body 5 is optimal for the kind of fruit and vegetables f. Temperature.

  As shown in FIG. 1, the cooling container 1 is provided with an information transmitter 54. The information transmitter 54 is configured to be able to store and transmit storage history information such as fruits and vegetables f stored in the container body 5, for example, temperature, humidity, storage item, period, production area information, and position information. ing. In the illustrated embodiment, the information transmitter 54 is provided on the wall plate 6 that forms the upper surface of the container body 5. However, the present invention is not limited to this, and if information transmission is possible, Any position of the container body 5 may be used.

  By providing such an information transmitter 54 in the cooling container 1, it is possible to easily acquire information such as where and in what environment the fruits and vegetables f are currently stored. For this reason, in the market, it becomes easy to grasp the entire distribution and storage of the fruits and vegetables f and the like, and it is possible to contribute to the construction of the entire distribution system and storage system of the fruits and vegetables f and the like.

  As mentioned above, although the preferable form of this invention was demonstrated, this invention is not limited to said form. For example, the above-described embodiments may be combined, and various modifications can be made without departing from the object of the present invention.

DESCRIPTION OF SYMBOLS 1 Cooling container 3 Container main body 3a, 3c End wall 3b Loading space 6 Wall board 10 Cooling device 11 Cooling circuit 13 Cooling chamber 13a Inlet 13b Outlet 13c, 15a Side wall 14 Joint 15 Storage part 15b Lower top part 16, 18 Communication path Reference Signs List 17 Pump 19, 62 Fan 20 Cooling unit 21 Water supply unit 22 Introduction pipe 22a Hole 23 Water flow dispersion filler 23a Upper surface 23b, 50a Lower surface 25 Heat exchange filler 30 Cooling cycle 31 Refrigerant circuit 33 Compressor 35 Condenser 37 Receiving Liquid unit 39 Expansion valve 41 Heat exchanger 41a Heat transfer tube 43 Cooling box 45 Temperature detection unit 46 Control unit 47 Type determination unit 50 Blowout duct 50b Lower side surface 50c Semicircle 51 Non-discharge part 52 Discharge part 54 Information transmitter 60 Mesh box container 61 Circuit A Air f Vegetables W Water

Claims (7)

A container main body configured using a heat insulating material and extending in a rectangular shape in the lateral direction; and a cooling device provided in the container main body inside an end wall on one end side in the longitudinal direction of the container main body, and the cooling The apparatus has a box-shaped cooling chamber disposed on one end side in the longitudinal direction in the container body and extending in the vertical direction, and a cooling cycle disposed outside the cooling chamber, A suction port provided in a lower portion on the other end side of the cooling chamber and communicating with the inside of the container body, and an air provided in an upper portion on the other end side of the cooling chamber and sucked from the suction port to rise. A cooling container having an air outlet that blows out and a cooling portion provided between the air inlet and the air outlet in the cooling chamber,
The cooling unit has a water supply unit that cools the water stored in the bottom of the cooling chamber by the heat exchange unit of the cooling cycle, guides the water into the cooling chamber, and supplies the water toward the bottom of the cooling chamber.
A type determining unit for determining the type of fruit and vegetables contained in the container body;
The state of the water supplied from the water supply unit by controlling the operation of the cooling cycle so as to optimize the humidity of the air in the container body according to the type of fruits and vegetables determined by the type determination unit. And a control unit for controlling the cooling container. The control unit is cooled by the heat exchange unit of the cooling cycle and supplied from the water supply unit so that the humidity of the air according to the type of fruits and vegetables determined by the type determination unit is optimized. The cooling container according to claim 1, wherein the temperature of water is controlled. Between the cooling chamber and the heat exchange unit, a communication path including a pump for sending water stored in the bottom of the cooling chamber to the heat exchange unit of the cooling cycle is provided,
The said control part controls the amount of water discharged from the said pump, and the temperature of water so that the humidity of the said air according to the kind of fruit and vegetables judged by the said kind judgment part may become optimal. Item 3. The cooling container according to Item 1 or 2. The cooling chamber is provided with a fan that is arranged at a position above the introduction pipe of the water supply unit and moves air sucked from the suction port upward in the cooling chamber,
In the container body, a temperature detection unit for detecting the temperature of air in the container body is provided,
The said control part controls the rotation speed of the said fan so that the temperature of the air according to the kind of fruit and vegetables judged by the said kind judgment part may become the optimal. As described in the cooling container. The cooling part receives water supplied from the water supply part and moves downward while receiving and dispersing water, and
Heat exchange filler disposed below the water flow dispersion filler, receiving water flowing out of the water flow dispersion filler, and bringing the water into contact with the rising air sucked from the suction port The cooling container according to claim 1, comprising: The water supply unit includes an introduction pipe that guides the cooled water into the cooling chamber, and a lower surface of the introduction pipe that is provided at a predetermined interval in a longitudinal direction of the introduction pipe and that supplies the cooled water to the water flow The cooling container according to claim 5, comprising a plurality of holes that naturally drop toward the filler for dispersion. The water flow dispersion filler is configured to disperse the cooled water supplied from the water supply section in the width direction of the water flow dispersion filler and to move downward. The cooling container according to claim 5.

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