JP2020055630A - Cold insulation container and refrigerant receiver - Google Patents

Abstract

To provide a cold insulation container capable of keeping a cold sate of a content without generating temperature unevenness and freezing failure in the content, and to provide a refrigerant receiver capable of keeping the cold sate of the content without generating the temperature unevenness and the freezing failure in the content by supporting a refrigerant arranged in the cold insulation container.SOLUTION: There is provided an assembly type cold insulation container 1 comprising a bottom face panel 30A, a side face panel 10 and a ceiling panel 30B that are mutually assembled. A ventilation path for downwardly feeding upper cool air is formed on an inner face of the side face panel 10 in a vertical direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cool container and a refrigerant receiver.

  In recent years, with globalization, demand for export by aircraft has been increasing. Due to the transportation cost of air cargo, loading efficiency or material weight, in particular, weight reduction of refrigerant, is required. Therefore, when air freight needs to be kept cool, collective packaging is adopted. As a collective package, a large container such as a foamed plastic is being studied. However, in order to manufacture such a large container, a special molding machine is required, and there is a problem that the material cost increases. In addition, there is a problem that storing and transporting an empty large container is costly.

Therefore, conventionally, a collective packaging has been realized by assembling a foamed plastic that can be manufactured by a general-purpose molding machine.
As a collective package, for example, a plate member made of a square-shaped foamed thermoplastic resin plate, a first plate member having a cutout groove formed on each side, and a protruding portion fitted on each side with the cutout groove A second plate member formed with a protrusion formed on two symmetrical sides to be fitted with a notch groove in the first plate member, and a protrusion on the second plate member on the other two symmetrical sides. There has been disclosed an assembling type heat insulation / cooling box comprising a third plate member formed with a cutout groove in which a portion fits, and each of these plate members is disassembled by using a plurality of the respective plate members. Reference 1).

Japanese Utility Model Publication No. Sho 63-120824

  However, since the conventional assembly type container is large in size, the temperature unevenness occurs in the contents. Therefore, conventionally, the amount of the refrigerant has been increased so that the portion where the temperature rise of the content is the largest is adjusted to be within the specified temperature. Then, there has been a problem that the temperature of the contents disposed in the vicinity of the refrigerant is too low, and a freezing failure occurs.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cold storage container that can keep a content in a cool state without causing temperature unevenness or freezing failure in the content. Another object of the present invention is to provide a refrigerant receiver that supports a refrigerant arranged in a cold storage container and can maintain the cold state of the content without causing temperature unevenness or freezing failure in the content. .

In order to solve the above problems, the present invention proposes the following means.
The cold storage container according to the present invention is an assembled cold storage container having a bottom panel, a side panel, and a ceiling panel that are assembled with each other, and a ventilation path that sends upper cool air downwardly to an inner surface of the side panel, in a vertical direction. It is formed along.

  The side panel is composed of a plurality of unit panels in at least the up-down direction, and a ventilation groove forming the ventilation path is formed on one surface of the plurality of unit panels along the up-down direction. A fitting portion is provided at each end edge in the direction, and a communication portion communicating with the ventilation groove is formed in the fitting portion, and a fitting portion of the upper unit panel and a fitting portion of the lower unit panel are fitted. When the parts are fitted, the ventilation groove of the upper unit panel and the ventilation groove of the lower unit panel may be communicated via the communication part.

  The fitting portion includes a fitting concave portion and a fitting convex portion formed at an edge in the vertical direction of the unit panel, and the communication portion includes a vertical groove and a horizontal groove provided in the fitting convex portion. The vertical groove is communicated with the ventilation groove, and is provided on the fitting protrusion when the fitting portion of the upper unit panel and the fitting portion of the lower unit panel are fitted. The lateral grooves may be connected to each other so that the ventilation groove of the upper unit panel communicates with the ventilation groove of the lower unit panel.

  The fitting portion is composed of a plurality of fitting concave portions and a plurality of fitting convex portions formed on the vertical edge of the unit panel, and the fitting portion of the upper unit panel and the lower portion of the lower unit panel. When the fitting portion of the unit panel is fitted, a projection is formed on the end face of one fitting projection of the fitting projections that are in contact with each other, and the projection is formed on the end face of the other fitting projection. A depression for receiving the projection may be formed.

  A coolant receiver that supports a coolant, the coolant receiver includes a main body supported by the cold storage container, a partition wall that divides an upper surface of the main body into a first space and a second space, A through-hole having a flow path for sending cool air downward from the upper surface of the main body may be formed.

  A passage communicating the first space and the second space may be formed in the partition wall.

  A heat insulation sheet may be provided for vertically covering the contents accommodated in the cold insulation container.

  The refrigerating container according to the present invention is a refrigerating container comprising a bottom plate, a side plate surrounding the periphery of the bottom plate, and a top plate closing an opening formed at an upper end portion of the side plate, and a refrigerant disposed at an upper part in the container. A refrigerant receiver for supporting the refrigerant, the refrigerant receiver being installed on an upper portion of the container side plate, the refrigerant receiver being a main body, a partition wall dividing a first space and a second space on an upper surface of the main body, A flow path for sending cold air downward from the upper surface of the main body, a refrigerant having a relatively low melting point is disposed in the first space, and a refrigerant having a relatively high melting point in the second space. Is arranged.

  At least the inside of the side plate and the top plate is covered with a cooling sheet, and the cooling sheet has a metal layer on at least one surface of the foamed resin sheet, and the surface of the metal layer of the cooling sheet is the main body of the coolant receiver. May be directed to the upper surface of the device.

  The refrigerant receiver according to the present invention has a partition wall that partitions the first space and the second space on the upper surface of the main body, and a flow path that sends cool air of the refrigerant downward from the upper surface of the main body. The refrigerant is supported in one space and the second space.

  Advantageous Effects of Invention According to the present invention, it is possible to provide a cold storage container that can maintain a cool state of contents without causing temperature unevenness or freezing failure in the contents. ADVANTAGE OF THE INVENTION According to this invention, the refrigerant | coolant receiver which can support the refrigerant | coolant arrange | positioned in a cold storage container and can maintain the cool state of the content can be provided, without temperature unevenness and freezing trouble occurring in the content.

It is a perspective view showing the cold storage container of one embodiment of the present invention. It is a top view showing the surface side of the side panel of the cold storage container of one embodiment of the present invention. It is a side view which shows the up-down direction of the side panel of the cool container of one Embodiment of this invention. It is a top view showing the back side of the side panel of the cold storage container of one embodiment of the present invention. It is a side view which shows the left-right direction of the side panel of the cool container of one Embodiment of this invention. It is a perspective view showing the surface side of the side panel of the cold storage container of one embodiment of the present invention. It is a perspective view showing the back side of the side panel of the cool container of one embodiment of the present invention. It is a top view showing the back side of the side panel of the cold storage container of one embodiment of the present invention. It is a top view showing the surface side of the side panel of the cold storage container of one embodiment of the present invention. It is a top view showing the surface side of the bottom panel and the ceiling panel of the cool container of one embodiment of the present invention. It is a side view showing the bottom panel and the ceiling panel of the cool container of one embodiment of the present invention. It is a top view which shows the back surface side of the bottom panel and ceiling panel of the cool container of one Embodiment of this invention. It is a side view showing the bottom panel and the ceiling panel of the cool container of one embodiment of the present invention. It is a perspective view showing the surface side of the bottom panel and the ceiling panel of the cool container of one embodiment of the present invention. It is a perspective view which shows the back surface side of the bottom panel and ceiling panel of the cool container of one Embodiment of this invention. It is a top view which shows the surface side of the refrigerant receiver of the cool storage container of one Embodiment of this invention. It is a side view which shows the refrigerant | coolant receiver of the cool storage container of one Embodiment of this invention. It is a side view which shows the refrigerant | coolant receiver of the cool storage container of one Embodiment of this invention. FIG. 17 is a cross-sectional view taken along line AA of FIG. 16, showing a refrigerant receiver of the cool storage container of one embodiment of the present invention. It is a top view which shows the back surface side of the refrigerant | coolant receiver of the cool storage container of one Embodiment of this invention. It is a perspective view showing the back side of the refrigerant receptacle of the cold storage container of one embodiment of the present invention. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view showing the cold storage container concerning a modification of the present invention. It is a front view which shows the cold storage container which concerns on the modification of this invention. It is a perspective view of the refrigerant receiver of the cool storage container of one embodiment of the present invention. FIG. 34 is a perspective view of a component constituting the refrigerant receiver shown in FIG. 33. FIG. 35 is a perspective view of the components of the refrigerant receiver shown in FIG. 34 as viewed from below. It is a perspective view of the bottom panel of the cool container of one embodiment of the present invention. FIG. 37 is a perspective view of components constituting the bottom panel shown in FIG. 36. FIG. 38 is a perspective view of components of the bottom panel shown in FIG. 37 as viewed from below. It is a perspective view showing the usage of the cool container of one embodiment of the present invention. It is a perspective view of the side panel of the cool container of one embodiment of the present invention.

An embodiment of the cold storage container and the refrigerant receiver of the present invention will be described.
The present embodiment is specifically described for better understanding of the spirit of the present invention, and does not limit the present invention unless otherwise specified.

[Insulated container]
FIG. 1 is a perspective view showing a cold storage container of the present embodiment. FIG. 2 is a plan view showing the front side of the side panel of the cold storage container of the present embodiment. FIG. 3 is a side view showing the vertical direction of the side panel of the cold storage container of the present embodiment. FIG. 4 is a plan view showing the back side of the side panel of the cool container according to the present embodiment. FIG. 5 is a side view showing the left and right direction of the side panel of the cold storage container of the present embodiment. FIG. 6 is a perspective view showing the front side of the side panel of the cool container according to the present embodiment. FIG. 7 is a perspective view showing the back side of the side panel of the cold storage container of the present embodiment. FIG. 8 is a plan view showing the back side of the side panel of the cold storage container of the present embodiment. FIG. 9 is a plan view showing the front side of the side panel of the cool container according to the present embodiment. FIG. 10 is a plan view showing the front side of the bottom panel and the ceiling panel of the cold storage container of the present embodiment. FIG. 11 is a side view showing a bottom panel and a ceiling panel of the cold storage container of the present embodiment. FIG. 12 is a plan view showing the bottom panel and the rear panel of the ceiling panel of the cool container according to the present embodiment. FIG. 13 is a side view showing a bottom panel and a ceiling panel of the cool container according to the present embodiment. FIG. 14 is a perspective view showing the front surface side of the bottom panel and the ceiling panel of the cold storage container of the present embodiment. FIG. 15 is a perspective view showing the back surface side of the bottom panel and the ceiling panel of the cold storage container of the present embodiment. FIG. 16 is a plan view showing the front surface side of the refrigerant receiver of the cold storage container of the present embodiment. FIG. 17 is a side view showing the refrigerant receiver of the cool storage container of the present embodiment. FIG. 18 is a side view illustrating the refrigerant receiver of the cool storage container of the present embodiment. FIG. 19 is a cross-sectional view taken along line AA of FIG. 16, showing the refrigerant receiver of the cool storage container of the present embodiment. FIG. 20 is a plan view showing the back side of the refrigerant receiver of the cool storage container of the present embodiment. FIG. 21 is a perspective view showing the back surface side of the refrigerant receiver of the cold storage container of the present embodiment.

As shown in FIG. 1, the cold storage container 1 of the present embodiment has a side panel 10, a bottom panel 30A, and a ceiling panel 30B. The cold storage container 1 is an assembling type container in which the side panel 10, the bottom panel 30A, and the ceiling panel 30B are assembled with each other. The cool container 1 of the present embodiment has a cubic shape.
The cold storage container 1 stores contents therein and keeps the contents cool. The side panel 10, the bottom panel 30A, and the ceiling panel 30B are foams made of polyethylene, polystyrene, polyethylene terephthalate, or the like.

  As shown in FIGS. 1, 8, and 9, the side panel 10 has a square shape in plan view. As shown in FIG. 8, the side panel 10 includes a unit panel 10A having a rectangular shape in plan view and a unit panel 10B having a rectangular shape in plan view that can be divided in the vertical direction of the cold storage container 1. Here, the unit panel 10A and the unit panel 10B have the same shape, and are divided into an upper unit panel 10A and a lower unit panel 10B for convenience of explanation. Further, in the concavo-convex shape forming the fitting portion formed on the edges of the unit panels 10A and 10B described later, the facing edges are formed point-symmetrically.

  As shown in FIGS. 1, 4, 7, and 8, a plurality of ventilation grooves 11 are formed on the inner surface 10 a of the side panel 10 so as to form a ventilation path for sending cool air above the cold storage container 1 downward. . Specifically, the plurality of ventilation grooves 11 are provided at predetermined intervals along the vertical direction of the cold storage container 1 (vertical direction of the cold storage container 1 shown in FIG. 1) without penetrating from the upper end to the lower end of the side panel 10. And are formed in parallel. That is, the ventilation groove 11 has an upper end surface and a lower end surface. This makes it difficult for the cool air entering the ventilation groove 11 to leak from the upper end and the lower end of the side panel 10 to the outside of the cold storage container 1.

  As shown in FIG. 8, fitting portions 12 and 13 are provided at the edges of the unit panels 10A and 10B in the vertical direction (the vertical direction of the cold storage container 1 shown in FIG. 1, the horizontal direction in FIG. 8). ing. The fitting portion 12 includes a plurality of fitting protrusions 14 (14A to 14F) and a plurality of fitting recesses 15 (15A to 15F) provided alternately. The fitting portion 13 includes a plurality of fitting protrusions 16 (16A to 16F) and a plurality of fitting recesses 17 (17A to 17F) provided alternately.

  As shown in FIGS. 1, 8, and 9, the fitting portion 13 of the upper unit panel 10A and the fitting portion 12 of the lower unit panel 10B are fitted in the vertical direction. Specifically, the fitting projection 16A of the unit panel 10A fits into the fitting recess 15A of the unit panel 10B, the fitting projection 14A of the unit panel 10B fits into the fitting recess 17A of the unit panel 10A, The fitting projection 16B of the unit panel 10A fits into the fitting recess 15B of the unit panel 10B, and the fitting projection 14B of the unit panel 10B fits into the fitting recess 17B of the unit panel 10A. The fitting protrusion 16C fits into the fitting recess 15C of the unit panel 10B, the fitting protrusion 14C of the unit panel 10B fits into the fitting recess 17C of the unit panel 10A, and the fitting protrusion of the unit panel 10A. 16D fits into the fitting recess 15D of the unit panel 10B, the fitting protrusion 14D of the unit panel 10B fits into the fitting recess 17D of the unit panel 10A, and the fitting protrusion 16E of the unit panel 10A fits into the unit panel. 10 The fitting projection 14E of the unit panel 10B fits into the fitting recess 17E of the unit panel 10A, and the fitting projection 16F of the unit panel 10A fits into the fitting recess of the unit panel 10B. 15F, the fitting projection 14F of the unit panel 10B fits into the fitting recess 17F of the unit panel 10A. The fitting protrusions 14 (14A to 14F) and the fitting protrusions 16 (16A to 16F) have chamfers.

On the inner surface 10a of the side panel 10 (unit panels 10A, 10B), the fitting projections 14, 16 (14A to 14F, 16A to 16F) of the fitting portion 12 are formed on the unit panel 10A arranged on the upper side. A communication part (communication groove) for communicating the ventilation groove 11 formed and the ventilation groove 11 formed in the lower unit panel 10B is formed. When the unit panel 10A and the unit panel 10B are vertically combined by the communication portion, the cool air in the ventilation groove 11 of the upper unit panel 10A can be sent to the ventilation groove 11 of the lower unit panel 10A. Specifically, the communication portion (communication groove) includes a vertical groove 14a and a horizontal groove 14b. At least one vertical groove 14a communicating with the ventilation groove 11 is formed in the fitting projection 14 (14A to 14F). Further, a lateral groove 14b communicating with the vertical groove 14a is formed in the fitting convex portion 14 (14A to 14F). Here, the vertical groove 14a does not penetrate the fitting projection 14 (the fitting projection 16 described later) (without opening to the outside), that is, one end of the vertical groove 14a communicates with the ventilation groove 11, The other end is communicated with the lateral groove 14b. At least one end of the lateral groove 14b is open from the fitting projection 14 to the fitting recess 15.
On the inner surface 10a of the side panel 10 (unit panels 10A and 10B), the fitting protrusions 16 (16A to 16F) of the fitting portion 13 also have vertical grooves 16a and horizontal grooves 16b as communication grooves similarly to the fitting protrusions 14. Is formed.

As shown in FIGS. 1 and 6, the fitting portion 13 of the upper unit panel 10 </ b> A and the fitting portion 12 of the lower unit panel 10 </ b> B are fitted in the vertical direction, so that the fitting of the upper unit panel 10 </ b> A is performed. The lateral grooves 16b of the fitting projections 16 (16A to 16F) of the mating portion 13 are aligned with the fitting projections of the fitting portion 12 of the lower unit panel 10B in which the fitting projections 16 (16A to 16F) are arranged. 14 (14A to 14F).
Thereby, in the cool container 1, the cool air from the refrigerant arranged above the contents accommodated in the cool container 1 is transferred from the inner surface 10a of the upper unit panel 10A to the inner surface 10a of the lower unit panel 10B. Along the way, cool air can flow without leaking from the boundary where the upper and lower unit panels 10A and 10B are connected.

As shown in FIGS. 6 and 7, when the fitting projections 14, 16 of the fitting portions 12, 13 of the unit panels 10A, 10B are fitted, one of the fitting projections 14, 16 adjacent to each other is fitted. A projection 36 is provided on the end face of the mating projection, and a depression 37 for receiving the projection is provided on the end face of the other fitting projection. That is, when assembling the unit panels 10A and 10B, the projections 36 are provided on the end faces of the fitting projections 14 or the fitting projections 16 which are brought into contact when the fitting projections 14 and 16 are fitted. A recess 37 is provided on the end face of the other fitting protrusion 14 or the other fitting protrusion 16. That is, when the fitting projection 14 and the fitting projection 16 are fitted with each other, the projection 36 enters the recess 37. Thereby, at the time of assembling the cool container 1, the operator can intuitively confirm that the panel is fitted without a gap and no gap is generated.
The arrangement of the projections 36 and the depressions 37 on the fitting projections 14 and 16 is not limited to the projections 36 and the depressions 37 shown in FIGS. Of course, the projections 36 and the depressions 37 can be provided on the fitting portions 18 and 19 of the side panel 10 and the convex end surfaces of the edges of the bottom panel 30A and the ceiling panel 30B, which will be described later.

  As shown in FIG. 1, the fitting portion 12 of the upper unit panel 10A and the uneven portion 31 provided on the edge of the ceiling panel 30B are fitted. Further, the fitting portion 13 of the lower unit panel 10B and the uneven portion 31 provided on the edge of the bottom panel 30A are fitted.

  As shown in FIGS. 1, 2, and 4 to 8, fitting portions 18, 19 are provided at the edges of the unit panels 10 </ b> A, 10 </ b> B in the left-right direction (the left-right direction of the cold storage container 1 shown in FIG. 1). Have been. The fitting portion 18 includes a plurality of fitting concave portions 20 (20A to 20C) and a plurality of fitting convex portions 21 (21A to 21C) provided alternately. The fitting portion 19 includes a plurality of fitting protrusions 22 (22A to 22C) and a plurality of fitting recesses 23 (23A to 23C) provided alternately.

  As shown in FIGS. 1, 4, 7, and 8, holding grooves 24 and 25 for holding a coolant receiver 50 described later are formed on the inner surface 10 a of the side panel 10. Specifically, on the inner surface 10a of the side panel 10, along the left-right direction of the cold storage container 1 (the left-right direction of the cold storage container 1 shown in FIG. 1), from the fitting projection 21A of the fitting portion 18 to the fitting portion 19 Along the holding groove 24 extending to the fitting concave portion 23A, and from the fitting concave portion 20C of the fitting portion 18 to the fitting portion 19 along the left-right direction of the cool container 1 (the left-right direction of the cool container 1 shown in FIG. 1). And a holding groove 25 extending in the fitting projection 22C. That is, the holding grooves 24 and 25 are formed in parallel with the ventilation groove 11 at intervals vertically. The holding groove 24 has a locally widened portion 26. The holding groove 25 has a locally expanding portion 27.

  As shown in FIG. 1, the fitting portion 18 of one side panel 10 and the fitting portion 19 of the other side panel 10 fit vertically in the left-right direction. Specifically, the fitting protrusion 22A of one side panel 10 fits into the fitting recess 20A of the other side panel 10, and the fitting protrusion 21A of the other side panel 10 fits the one side panel 10. The fitting recess 23A fits into the fitting recess 22B of one side panel 10, and the fitting recess 22B of the other side panel 10 fits into the fitting recess 21B of the other side panel 10. The fitting recess 23B of the panel 10 is fitted, the fitting protrusion 22C of one side panel 10 is fitted to the fitting recess 20C of the other side panel 10, and the fitting protrusion 21C of the other side panel 10 is fitted. Fits into the fitting recess 23 </ b> C of one side panel 10. The fitting protrusions 21 (21A to 21C) and the fitting protrusions 22 (22A to 22C) have chamfers.

As shown in FIGS. 1, 10, 12, 14, and 15, the bottom panel 30A and the ceiling panel 30B have a square shape in plan view.
The bottom panel 30A and the ceiling panel 30B have the same configuration.
As shown in FIG. 1 and FIGS. 10 to 15, irregularities 31 (31 A to 31 D) are provided at the edges of the bottom panel 30 </ b> A and the ceiling panel 30 </ b> B. The uneven portion 31 includes a plurality of alternately provided convex portions 32 (32A to 32F) and a plurality of concave portions 33 (33A to 33F).
The uneven portions 31A, 31B, 31C, 31D have the same structure.

  As shown in FIG. 1, the uneven portion 31 of the bottom panel 30A and the fitting portion 13 of the unit panel 10B are fitted in the vertical direction. More specifically, the fitting projection 16A of the unit panel 10B fits into the recess 33A of the bottom panel 30A, the projection 32A of the bottom panel 30A fits into the fitting recess 17A of the unit panel 10B, and the unit panel 10B The fitting projection 16B fits into the recess 33B of the bottom panel 30A, the projection 32B of the bottom panel 30A fits into the fitting recess 17B of the unit panel 10B, and the fitting projection 16C of the unit panel 10B fits into the bottom panel. The fitting portion 32C of the bottom panel 30A fits into the fitting recess 17C of the unit panel 10B, and the fitting projection 16D of the unit panel 10B fits into the recess 33D of the bottom panel 30A. The protrusion 32D of the bottom panel 30A fits into the fitting recess 17D of the unit panel 10B, the fitting protrusion 16E of the unit panel 10B fits into the recess 33E of the bottom panel 30A, and the bottom panel The protrusion 32E of the unit 30A fits into the fitting recess 17E of the unit panel 10B, the fitting protrusion 16F of the unit panel 10B fits into the recess 33F of the bottom panel 30A, and the protrusion 32F of the bottom panel 30A fits into the unit panel. It fits into the fitting recess 17F of 10B. In addition, the convex part 32 (32A-32F) has a chamfer.

  As shown in FIG. 1, the concave / convex portion 31 of the ceiling panel 30B and the fitting portion 12 of the unit panel 10A fit vertically. In detail, the fitting projection 14F of the unit panel 10A fits into the recess 33A of the ceiling panel 30B, the projection 32A of the ceiling panel 30B fits into the fitting recess 15F of the unit panel 10A, and the unit panel 10A The fitting projection 14E fits into the recess 33B of the ceiling panel 30B, the projection 32B of the ceiling panel 30B fits into the fitting recess 15E of the unit panel 10A, and the fitting projection 14D of the unit panel 10A fits into the ceiling panel. The fitting 32C of the ceiling panel 30B fits into the fitting recess 15D of the unit panel 10A, and the fitting projection 14C of the unit panel 10A fits into the recess 33D of the ceiling panel 30B. The projection 32D of the ceiling panel 30B fits into the fitting recess 15C of the unit panel 10A, the fitting projection 14B of the unit panel 10A fits into the recess 33E of the ceiling panel 30B, and the ceiling panel The projection 32E of the unit 30B fits into the fitting recess 15B of the unit panel 10A, the fitting projection 14A of the unit panel 10A fits into the recess 33F of the ceiling panel 30B, and the projection 32F of the ceiling panel 30B fits into the unit panel. It fits into the fitting recess 15A of 10A.

  As shown in FIGS. 1, 12 and 15, a plurality of grooves 34 are arranged in parallel on the inner surface 30 a of the bottom panel 30 A and the ceiling panel 30 B at a predetermined interval along one direction of the inner surface 30 a. Is formed.

  As shown in FIGS. 1, 10, and 14, a recess 35 is formed on the lower surface 30 b (the surface opposite to the inner surface 30 a) of the bottom panel 30 so that the pallet on which the cold storage container 1 is placed is fitted. .

The cool container 1 of the present embodiment includes a refrigerant receiver 50 shown in FIGS. The refrigerant receiver 50 supports the refrigerant arranged in the cool container 1.
As shown in FIGS. 16 and 20, the coolant receiver 50 has a square shape in plan view. The coolant receiver 50 is a foam made of polyethylene, polystyrene, polyethylene terephthalate, or the like.
The coolant receiver 50 has a main body 51 supported by the side panel 10, and projects upward from the main body 51 (above the cold storage container 1 shown in FIG. 1). And a partition wall portion 54 for partitioning into two. The partition wall portion 54 is disposed in a substantially rectangular shape substantially at the center of the main body portion 51 in a plan view. That is, the center of the main body 51 is defined as the first space 52, and the periphery of the first space 52 is defined as the second space. Furthermore, the first space 52 is a space (space in the partition wall 54) surrounded by the partition wall 54 on the main body 51, and the second space 53 is a partition wall on the main body 51. The space is not surrounded by the part 54.

  The arrangement position of the first space 52 by the partition wall portion 54 formed in the main body portion 51 does not have to be substantially at the center of the main body portion 51 in plan view, and may be arranged at the four corners of the main body portion 51 in plan view. . Even in this case, the first space 52 may be formed so as to surround the periphery of the second space 53. Further, the partition wall portion 54 that partitions the first space 52 is substantially rectangular in plan view, but may be arbitrarily determined such as a circular shape, a square shape, or a pentagonal shape.

  In the first space 52, a refrigerant having a relatively low melting point is disposed, and in the second space 53, a refrigerant having a relatively high melting point is disposed. Thereby, the refrigerant arranged in the second space 53 is cooled by the refrigerant arranged in the first space 52, and the melting time can be delayed. That is, it is possible to make the refrigerant arranged in the second space 53 difficult to melt. In the present embodiment, dry ice is arranged in the first space 52, and ice is arranged in the second space 53. As the refrigerant, not only dry ice and ice but also refrigerants having relatively different melting points can be used in combination.

The main body part 51 is formed with a flow path for sending the cool air on the upper surface 51a to the rear side (lower side) of the main body. The flow path is constituted by a notch 58 formed on the peripheral edge of the main body 51 and a through hole 55 outside the center of the main body 51. Cool air moves (flows) from the second space 53 to the back side of the main body through the notch 58 and the through hole 55. Since the notch 58 and the through-hole 55 are provided outside the center of the main body 51, cold air can be sent to the outside of the cold storage container 1 and can respond to heat from outside the cold storage container 1. That is, the cool air can flow from the second space 53 through the flow path, to the bottom of the cold storage container 1 through the ventilation path of the side panel 10.
The through-hole 55 of the present embodiment is a substantially rectangular through-hole in a plan view, but the shape, size, and number thereof can be determined to be suitable for temperature control. In addition, the arrangement position of the through hole 55 may be provided in the second space 53.

  A plurality of passages 56 communicating the first space 52 and the second space 53 are formed in the partition wall portion 54. The passage 56 allows the cool air of the dry ice arranged in the first space 52 to flow to the second space 53 in which the ice is arranged.

  In the second space 53, a plurality of water receiving portions 57 are formed on the upper surface 51a side of the main body portion 51. The water receiving portion 57 receives the water generated by the melting of the ice arranged in the second space 53, and the water drips into a space below the refrigerant receiver 50, and the content stored in the cold storage container 1 is removed. Prevents getting wet. In addition, even when a cooling agent is used instead of ice, the contents stored in the cooling container 1 are prevented from being wet by the dew water generated around the storage container storing the cooling agent.

  As shown in FIG. 16 and FIG. 20, the coolant receiver 50 is supported on the side panel 10 by fitting the peripheral edge of the coolant receiver 50 into the holding groove 24 or the holding groove 25 formed on the inner surface 10 a of the side panel 10. Is done.

  As shown in FIG. 21, a reinforcing member having a V-shaped cross section perpendicular to the longitudinal direction and parallel to one direction of the edge of the refrigerant receiver 50 is provided on the back surface 51 b of the main body 51 of the refrigerant receiver 50. 60, 60 are provided. By providing the reinforcing member 60, even if the refrigerant is disposed on the upper surface 51a of the main body 51, it is possible to prevent the bending of the refrigerant receiver 50 from increasing.

Next, a method of using the cold storage container 1 of the present embodiment will be described with reference to FIGS.
As shown in FIG. 22, a pallet 100 on which the cool container 1 is placed is prepared.

Next, as shown in FIG. 23, the bottom panel 30A is arranged on the pallet 100. At this time, the pallet 100 is fitted into the recess 35 formed on the lower surface 30b of the bottom panel 30.
The fitting portion 13 of the unit panel 10B is fitted into each of the two concavo-convex portions 31 of the two adjacent edges of the bottom panel 30A, and the two adjacent two bottom faces of the bottom panel 30A on the inner surface 30a side of the bottom panel 30A. The unit panels 10B, 10B are erected on the edge. At this time, the fitting portion 18 of one unit panel 10B and the fitting portion 19 of the other unit panel 10B are fitted.

  The fitting portions 13 of the unit panels 10A are fitted to the fitting portions 12 of the two unit panels 10B erected on the bottom panel 30A, and the unit panels 10A and 10B are joined. At this time, the fitting portion 18 of one unit panel 10A and the fitting portion 19 of the other unit panel 10A are fitted. Thus, two side panels 10 each including the unit panel 10A and the unit panel 10B are erected on the inner surface 30a of the bottom panel 30A.

  As shown in FIG. 24, the heat retention sheet 70 is arranged so as to extend from the outside of the bottom panel 30A to the outside of the side panel 10 through the inner surface 30a of the bottom panel 30A and the inner surface 10a of the side panel 10.

The heat retaining sheet 70 has a metal layer on at least one surface of the foamed resin sheet. Specifically, the heat retaining sheet 70 is an aluminum vapor-deposited foam sheet having a foamed resin sheet and an aluminum layer formed by evaporating aluminum on one surface.
The heat retaining sheet 70 is arranged such that a surface 70a on which aluminum is deposited appears on the side opposite to the inner surface 10a of the side panel 10 and the inner surface 30a of the bottom panel 30A. That is, the heat retaining sheet 70 is arranged such that the surface 70b on the foamed resin sheet side faces the inner surface 10a of the side panel 10 and the inner surface 30a of the bottom panel 30A.

As shown in FIG. 25, a plurality of contents 200 are stacked on the heat retaining sheet 70 arranged on the inner surface 30a of the bottom panel 30A.
Here, the contents 200 are arranged so as to be close to the heat retaining sheet 70 arranged along the inner surface 10 a of the side panel 10. Further, as shown in FIG. 25, the contents 200 are arranged such that a space where a part of the four contents 200 on the same surface does not contact each other is formed at the center of a rectangular parallelepiped made of the four contents 200. Place. Thus, a cavity 300 is formed at the center of the rectangular parallelepiped made of the contents 200 along the loading direction of the contents 200.

  Next, as shown in FIG. 26, the side panel 10 is further erected on the bottom panel 30A as described above.

  As shown in FIG. 26, the peripheral edge of the coolant receiver 50 is fitted in the holding groove 24 formed on the inner surface 10 a of the side panel 10, and is slid horizontally to support the coolant receiver 50 on the side panel 10. Thereby, the first space 52 of the refrigerant receiver 50 is disposed on the cavity 300, and the second space 53 of the refrigerant receiver 50 is disposed on the content 200.

  As shown in FIG. 27, the dry ice 400 is arranged in the first space 52 (in the partition wall portion 54) of the refrigerant receiver 50.

  Next, as shown in FIG. 28, ice 410 is arranged on the dry ice 400 arranged in the first space 52 of the refrigerant receiver 50 and in the second space 53 of the refrigerant receiver 50.

  As shown in FIG. 29, the contents 200 loaded on the bottom panel 30A, and the dry ice 400 and the ice 410 arranged on the contents 200 via the refrigerant receiver 50 are vertically heated by the heat insulating sheet 70. cover. That is, the dry ice 400 and the ice 410 are covered with aluminum to obtain a heat shielding effect, and further to obtain a heat insulating effect by the foamed resin sheet on the outside thereof, thereby enhancing the cooling effect and allowing the refrigerant to last for a long time. it can.

  Next, as shown in FIG. 30, the side panel 10 is further erected on the bottom panel 30A as described above. As a result, all of the side surfaces of the content 200 loaded on the bottom panel 30A are surrounded by the side panel 10.

As shown in FIG. 30, as described above, the concave-convex portion 31 of the ceiling panel 30 </ b> B is fitted to the fitting portion 12 of the side panel 10 to form the cold storage container 1. As a result, the contents 200 stacked on the bottom panel 30A are stored in the cold storage container 1.
Furthermore, by fastening the outer periphery of the cold storage container 1 containing the contents 200 with the fastening bands 500, 500, the side panel 10, the bottom panel 30A and the ceiling panel 30B are more firmly joined, and the inside of the cold storage container 1 is It is possible to prevent cold air from leaking outside. As a result, it is possible to keep the content 200 in the cold storage container 1 in a cool state.

  The fastening band 500 is not particularly limited. For example, a band made of polypropylene (PP) is used.

  According to the cold storage container 1 of the present embodiment, the cold storage container 1 is an assembled container having the bottom panel 30A, the side panel 10, and the ceiling panel 30B assembled to each other, and sends the upper cold air downward to the inner surface 10a of the side panel 10. Since the plurality of ventilation grooves (air passages) 11 are formed, the cool air of the dry ice 400 or the ice 410 placed on the contents 200 accommodated in the cool container 1 is diffused into the cool container 1. Can be. As a result, it is possible to keep the content 200 in the cold storage container 1 in a cool state. In addition, it is possible to prevent the content 200 from being frozen.

  According to the cold storage container 1 of the present embodiment, the side panel 10 can be divided into two unit panels 10A and 10B in the vertical direction. Height can be adjusted.

  According to the cool container 1 of the present embodiment, since the heat insulating sheet 70 that covers the contents 200 accommodated in the cool container 1 in the vertical direction is provided, the cool effect of the dry ice 400 or the ice 410 can be enhanced.

<Other embodiments>
Note that the present invention is not limited to the above embodiment.

  For example, you may employ | adopt each structure of the cool storage container which concerns on a modification as shown to FIG. 31 and FIG.

The cool container 600 according to the modified example shown in FIGS. 31 and 32 has a container body 610, a plurality of protrusions 620 projecting from the inner surface 610 a of the container body 610 to the inside of the container body 610, and is mounted on the protrusion 620. , A refrigerant receiver 50 disposed in the container main body 610.
The container body 610 is a cubic or rectangular parallelepiped container made of a foam made of polyethylene, polystyrene, polyethylene terephthalate, or the like, and having an open top.

  In the cold storage container 600 of this modification, the contents 200 and the like are accommodated in the container main body 610, and the dry ice 400 and the ice 410 are arranged on the contents 200 via the refrigerant receiver 50. Thereby, the cool air of the dry ice 400 or the ice 410 can be diffused into the cold storage container 600. As a result, it is possible to keep the contents 200 in a cool state by the cool container 600. When the contents 200 are stored together with the dry ice 400 and the ice 410 in the cold storage container 600, the opening of the container main body 610 is covered with a panel having the same configuration as the above-mentioned ceiling panel 30B.

  Hereinafter, further embodiments of the cold storage container and the refrigerant receiver according to the present invention will be described with reference to FIGS.

  The cool container 1 and the refrigerant receiver 80 of the present embodiment are used for collective packaging in the same manner as the cool container 1 described in the above embodiment. Here, collective packaging means that a plurality of individual packages are collected and packaged together. That is, as shown in FIG. 25, the cool container 1 is a collective cool container for accommodating a plurality of contents 200 that are individually packaged and accumulated. The content 200, which is an individual package, is not particularly limited, but is, for example, a cardboard box in which goods such as meat and fresh fish that need to be chilled and transported while being maintained at a low temperature just before freezing are stored.

  The cool container 1 of the present embodiment has the same configuration as the cool container 1 described above, except for a few points. Therefore, in the cool container 1 of the present embodiment, the same parts as those of the cool container 1 of the above-described embodiment are denoted by the same reference numerals, and description thereof may be omitted. On the other hand, the refrigerant receiver 80 of the present embodiment has a configuration different from that of the refrigerant receiver 50 described in the above embodiment. In the following, a portion of the cold storage container 1 of the present embodiment that is different from the above-described embodiment and the configuration of the refrigerant receiver 80 of the present embodiment will be mainly described. However, the cold storage container 1 of the above-described embodiment will also be described. May be supplemented.

  FIG. 33 is a perspective view of the refrigerant receiver 80 of the present embodiment. The refrigerant receiver 80 is a plate-shaped member made of a foamed resin that is disposed above the contents 200 inside the cold storage container 1 while supporting the refrigerant C on the upper surface, similarly to the above-described refrigerant receiver 50. Specifically, the coolant receiver 80 is a rectangular plate-shaped member. In the example shown in FIG. 33, the planar shape of the coolant receiver 80 is substantially square, but may be other shapes such as a rectangle.

  The coolant receiver 80 has, for example, a coolant support portion 81 provided in a concave shape between the central portion and the peripheral portion of the upper surface. The refrigerant support 81 is a part for supporting the refrigerant. In the example shown in FIG. 33, the coolant receiver 80 has a plurality of coolant support portions 81 defined by beams 82 extending between the central portion and the peripheral portion. More specifically, the beam portions 82 are, for example, provided in a cross shape orthogonal to the center of the coolant receiver 80, and define four coolant support portions 81 between the center and the peripheral edge of the coolant receiver 80. ing. That is, the coolant supporting portion 81 is, for example, a concave portion defined on the upper surface of the coolant receiver 80 by the central portion of the coolant receiver 80, the peripheral portion of the coolant receiver 80, and the beam portion 82.

  The center of the coolant receiver 80 has, for example, a rectangular or square shape corresponding to the outer shape of the coolant receiver 80. The center of the coolant receiver 80 has, for example, a rectangular recess for lightening at the center. In the center of the coolant receiver 80, for example, four shallower rectangular lightening concave portions are provided adjacent to four corners of the central lightening concave portion. The central portion of the coolant receiver 80 is, for example, a rectangular portion defined by the outer edge of an L-shaped portion that borders the outside of the four shallow rectangular lightening recesses.

  The peripheral portion of the coolant receiver 80 has, for example, a rectangular or square frame shape or a frame shape corresponding to the outer shape of the coolant receiver 80. The upper end surface of the peripheral portion of the coolant receiver 80 is provided above the concave coolant support portion 81. Thus, a step is provided between the peripheral portion of the coolant receiver 80 and the coolant supporting portion 81. In other words, the peripheral portion of the coolant receiver 80 is provided so as to protrude above the coolant support portion 81, and defines a wall surface along the vertical direction of the coolant support portion 81 on the outer edge side of the coolant receiver 80. The outer edge of the peripheral edge of the coolant receiver 80 is provided, for example, in a tapered shape. More specifically, the peripheral edge of the refrigerant receiver 80 has, for example, an inclined surface at the peripheral edge of the upper surface of the refrigerant receiver 80. The inclined surface is inclined, for example, so as to approach the lower surface of the refrigerant receiver 80 from the center side of the refrigerant receiver 80 toward the outer edge.

  The peripheral edge of the coolant receiver 80 has, for example, a plurality of notches 83, a plurality of communication grooves 84, and four corners 85. The notch portion 83 is, for example, a portion in which the outer edge of the peripheral portion of the coolant receiver 80 is cut inward toward the center. The notch portion 83 has, for example, a substantially rectangular groove shape in plan view, and penetrates the refrigerant receiver 80 in the thickness direction, that is, in the vertical direction when the refrigerant receiver 80 is disposed inside the cold storage container 1. The cutout portion 83 defines a flow path of air cooled by the refrigerant, that is, a cool air, between the refrigerant receiver 80 and the side panel 10 of the cold storage container 1 when the refrigerant receiver 80 is disposed inside the cold storage container 1.

  The plurality of notches 83 are provided at intervals, for example, along each side of the rectangular outer edge of the coolant receiver 80. More specifically, for example, of the plurality of cutouts 83 on each side of the coolant receiver 80, a pair of cutouts 83 arranged at both ends and adjacent to the corner 85 are cutouts arranged inside the cutouts 83. The width of the coolant receiver 80 in the direction along the outer edge is smaller than that of the notch 83. In other words, the width of the notch 83 provided in the middle of each side of the refrigerant receiver 80 is wider than the width of the pair of notches 83 provided at both ends of each side of the refrigerant receiver 80. I have.

  The notch 83 provided in the middle of each side of the coolant receiver 80 has, for example, an extension 83a. The expansion portion 83a is provided outside the notch 83, for example, in a plan view of the refrigerant receiver 80, and extends the width of the opening of the notch 83. That is, in the direction along each side of the rectangular outer edge of the coolant receiver 80, the width of the extension 83 a is wider than the width of the notch 83. The expansion portion 83a has, for example, a concave curved surface or a partially cylindrical wall surface, and has a width that gradually increases from the inside to the outside in a plan view of the refrigerant receiver 80.

  The plurality of communication grooves 84 are grooves provided in a concave shape on the upper surface of the refrigerant receiver 80, for example, at the peripheral edge of the refrigerant receiver 80. The communication groove 84 extends from the inside to the outside of the coolant receiver 80 so as to cross the peripheral edge of the coolant receiver 80, for example, and communicates the coolant support portion 81 and the notch portion 83. The communication groove 84 has, for example, a substantially rectangular cross-sectional shape in a transverse cross section, and has an open upper end. The communication groove 84 defines a flow path through which the air cooled by the refrigerant disposed in the refrigerant support portion 81, that is, the cool air flows.

  The four corners 85 are provided in steps from the upper surface to the lower surface of the peripheral portion of the coolant receiver 80. The upper surface of each corner 85 is, for example, parallel to the upper surface of the peripheral portion of the coolant receiver 80, is disposed between the inclined surfaces adjacent to both sides of each corner 85, and the coolant receiver 80 is located at a higher position than these inclined surfaces. It is provided on the lower surface side of the refrigerant receiver 80 in the thickness direction. The outer peripheral surface of each corner 85 is provided, for example, in the shape of a convex curved surface or a partial cylindrical surface, and is provided inside the outer peripheral surface of the peripheral edge on both sides of each corner 85 in a plan view of the coolant receiver 80. . The lower surface of each corner portion 85 is, for example, continuous flat with the lower surface of the refrigerant receiver 80 without any step.

  The beam portion 82 extends radially from the center of the coolant receiver 80 to the peripheral edge, for example. In the example shown in FIG. 33, the upper surface of the beam portion 82, the upper surface of the portion of the coolant receiver 80 excluding the lightening concave portion, the notch 83 in the peripheral portion of the coolant receiver 80, the communication groove 84, and the corner The upper surface of the portion excluding the portion 85 is flat without any step in the thickness direction of the coolant receiver 80. That is, in the coolant receiver 80, the thickness of the beam portion 82, the thickness of the central portion excluding the lightening concave portion, the thickness of the peripheral edge portion excluding the cutout portion 83, the communication groove 84, and the corner portion 85 are obtained. But it is the thickest.

  The beam portion 82 extends in, for example, two orthogonal directions, that is, a vertical direction and a horizontal direction that intersect at the center of the coolant receiver 80. Of these cross-shaped beam portions 82 extending in two directions, the beam portion 82 extending in one direction has a concave portion for lightening at the center thereof. This one direction is a disassembly direction Db of the refrigerant receiver 80 for disassembling the refrigerant receiver 80 into two parts 80a, and an assembly direction Da for assembling the refrigerant receiver 80 by combining the two parts 80a. The lightening concave portion of the beam portion 82 is formed in a groove shape extending in one direction together with the beam portion 82.

  FIG. 34 is a perspective view of a component 80a constituting the refrigerant receiver 80 shown in FIG. FIG. 35 is a perspective view of the component 80a shown in FIG. 34 as viewed from below. As described above, the coolant receiver 80 is constituted by, for example, two parts 80a which are substantially rectangular in plan view. That is, when the refrigerant receiver 80 is used, the two parts 80a can be assembled to form the refrigerant receiver 80, and when the refrigerant receiver 80 is not used, the refrigerant receiver 80 can be disassembled into two parts 80a.

  The two components 80a that are combined with each other are the same component 80a. That is, the size, shape, and material of the two components 80a combined with each other are the same. By assembling these two parts 80a facing each other in a state where they are turned 180 degrees, the refrigerant receiver 80 shown in FIG. 33 can be assembled. That is, the coolant receiver 80 is divided into two parts 80a having the same shape that can be combined in the disassembly direction Db and the assembly direction Da. These two components 80a have a fitting portion 86 at an edge which is assembled to face each other.

  The fitting portion 86 of the component 80a includes, for example, a plurality of convex portions 86a and 86b and a plurality of concave portions 86c and 86d. More specifically, the fitting portion 86 includes, for example, four convex portions 86a, one convex portion 86b, four concave portions 86c, and one concave portion 86d. In the present embodiment, the direction parallel to the short direction of the rectangular component 80a and the direction in which the fitting portions 86 of the two components 80a facing each other are approached and fitted together is referred to as an assembly direction Da. Also, a direction parallel to the short direction of the rectangular component 80a and separating the two components 80a by releasing the fitting of the fitting portions 86 of the two components 80a is defined as a disassembly direction Db.

  The convex portion 86a has, for example, a substantially rectangular shape in plan view, and protrudes in the assembly direction Da. The concave portion 86c has, for example, a generally rectangular shape corresponding to the convex portion 86a in a plan view, and is provided in a concave shape in the disassembly direction Db. The convex portion 86a and the concave portion 86c are provided, for example, at positions where the convex portion 86a of one component 80a and the concave portion 86c of the other component 80a face each other when the fitting portions 86 of the two components 80a face each other. Have been. Accordingly, when the fitting portions 86 of the two components 80a are opposed to each other and approach in the assembling direction Da, the convex portion 86a of one component 80a is moved in the assembling direction with respect to the concave portion 86c of the other component 80a. It is designed to be inserted into Da and fitted.

  The convex portion 86b has, for example, a trapezoidal shape with the tip side being the upper bottom in plan view, and protrudes in the assembly direction Da. A side edge corresponding to one leg of the trapezoidal projection 86b is substantially parallel to, for example, the assembling direction Da, and a side edge corresponding to the other leg of the trapezoidal projection 86b is, for example, to the assembly direction Da. It is inclined at an angle of about 45 degrees. The concave portion 86d has, for example, a trapezoidal shape corresponding to the convex portion 86b in plan view, and is provided concavely in the disassembly direction Db. Most of the convex portion 86b and the concave portion 86d are formed, for example, by a thin portion at the center of the coolant receiver 80 provided with a deep concave portion.

  The convex portion 86b and the concave portion 86d are provided at a position where the convex portion 86b of one component 80a and the concave portion 86d of the other component 80a face each other when the fitting portions 86 of the two components 80a are opposed to each other. Have been. Thus, when the fitting portions 86 of the two components 80a are opposed to each other and approach in the assembling direction Da, the convex portion 86b of the one component 80a moves in the assembling direction with respect to the concave portion 86d of the other component 80a. It is designed to be inserted into Da and fitted.

  That is, the coolant receiver 80 is divided into two parts 80a having the same shape by a cutting curve that is point-symmetric with respect to the center of the coolant receiver 80 in plan view. Further, as shown in FIG. 35, a plurality of lightening concave portions are provided on the lower surface of the component 80a. The shape of the concave portion for lightening is not particularly limited, but the shape of the concave portion adjacent to the fitting portion 86 is, for example, a pentagon, and the shape of the concave portion adjacent to the short side of the component 80a is, for example, a trapezoid. The shape of the concave portion is, for example, a hexagon.

  As shown in FIGS. 33 and 34, one component 80a has, for example, two refrigerant support portions 81 arranged in the longitudinal direction of the component 80a orthogonal to the assembly direction Da and the disassembly direction Db. Accordingly, as shown in FIG. 33, the refrigerant receiver 80 in which the two components 80a are combined has, for example, four refrigerant support portions 81 as described above. Hereinafter, the configuration of the refrigerant support portion 81 will be described in detail.

  The refrigerant supporting portion 81 is a portion for supporting the refrigerant C for keeping the inside of the cool container 1 cool as described above. For example, dry ice can be used as the refrigerant C arranged in the refrigerant support portion 81. In addition, the refrigerant | coolant C arrange | positioned at the refrigerant | coolant support part 81 is not limited to dry ice, but may be ice and the cold storage material accommodated in the container.

  For example, in a plan view of the coolant receiver 80 shown in FIG. 33, the coolant support portion 81 is formed on the upper surface of the coolant receiver 80 by a rectangular central portion, a rectangular frame-shaped peripheral portion, and a cross-shaped beam portion 82. This is a generally L-shaped recessed section. The L-shaped refrigerant support portions 81 are provided, for example, at the four corners of the refrigerant receiver 80 along the outer edge of the central portion and the inner edge of the peripheral portion. As shown in FIG. 34, for example, the coolant support portion 81 has inclined support surfaces 81a and 81b that support the coolant C, cool air grooves 81d and 81e through which cool air flows, and a plurality of through holes 81g. .

  The inclined support surfaces 81a and 81b include, for example, a first inclined support surface 81a and a second inclined support surface 81b. The cool air grooves 81d and 81e include, for example, a first cool air groove 81d and a second cool air groove 81e. The first inclined support surface 81a and the second inclined support surface 81b are provided with a first cool air groove 81d, a second cool air groove 81e, and a through hole 81g, respectively.

  The first inclined support surface 81a is, for example, parallel to the short direction of the rectangular component 80a in plan view. Further, the first inclined support surface 81a moves downward, for example, in the longitudinal direction of the rectangular component 80a in a plan view, so as to approach the lower surface of the coolant receiver 80 from the center to the peripheral edge of the coolant receiver 80. It is inclined.

  The second inclined support surface 81b is, for example, parallel to the longitudinal direction of the rectangular component 80a in plan view. Further, the first inclined support surface 81a is, for example, in the short direction of the rectangular component 80a in a plan view, so as to be closer to the lower surface of the coolant receiver 80 from the central portion of the coolant receiver 80 toward the peripheral edge thereof. It is inclined to.

  A ridgeline 81c is formed between the first inclined support surface 81a and the second inclined support surface 81b along a diagonal line of the rectangular refrigerant receiver 80. The ridge line 81c is an intersection line between the first inclined support surface 81a and the second inclined support surface 81b. The ridge line 81c extends linearly from the corner of the rectangular central portion of the coolant receiver 80 to the corner portion 85 to the through hole 81g across the first cool air groove 81d.

  The first cool air groove 81d provided on the first inclined support surface 81a is located between the central portion and the peripheral edge portion of the coolant receiver 80 in the longitudinal direction of the rectangular component 80a in plan view, more than the through hole 81g. It is provided on the center side. The first cool air groove 81d of the first inclined support surface 81a extends from the beam portion 82 to the ridgeline 81c in the short direction of the rectangular component 80a in plan view. The bottom surface of the first cool air groove 81d may be parallel to the lower surface of the coolant receiver 80, or may be inclined in the same manner as the first inclined support surface 81a.

  The second cool air groove 81e provided on the first inclined support surface 81a has an extended portion 83a from the first cool air groove 81d to the peripheral edge of the refrigerant receiver 80 in the longitudinal direction of the rectangular component 80a in plan view. It extends to the notch 83. The bottom surface of the second cool air groove 81e of the first inclined support surface 81a may be parallel to the lower surface of the coolant receiver 80, but may be inclined in the same manner as the first inclined support surface 81a. .

  The first cool air groove 81d provided on the second inclined support surface 81b is formed between the central portion and the peripheral portion of the coolant receiver 80 in the short direction of the rectangular component 80a in a plan view. Is also provided on the center side. The first cool air groove 81d of the second inclined support surface 81b extends from the beam portion 82 to the ridgeline 81c in the longitudinal direction of the rectangular component 80a in plan view. The bottom surface of the first cool air groove 81d of the second inclined support surface 81b may be parallel to the lower surface of the coolant receiver 80, but may be inclined in the same manner as the second inclined support surface 81b. .

  The second cool air groove 81e provided on the second inclined support surface 81b is configured to extend from the first cool air groove 81d to the extended portion 83a of the peripheral portion of the refrigerant receiver 80 from the first cool air groove 81d in the short direction of the rectangular component 80a in plan view. It extends to the notch 83 which has. The bottom surface of the second cool air groove 81e of the second inclined support surface 81b may be parallel to the lower surface of the coolant receiver 80, or may be inclined in the same manner as the second inclined support surface 81b. .

  The inclined support surfaces 81a and 81b may be, for example, surfaces of a covering material that covers the surface of the refrigerant receiver 80 made of foamed resin. In this case, the entirety of the refrigerant support portion 81 may be covered with the covering material, or only the portions corresponding to the inclined support surfaces 81a and 81b may be covered with the covering material. As the covering material, for example, a non-foamed resin sheet molded according to the shape of the portion covered by the covering material can be used. The surface of the covering material is smoother than the surface of the foamed resin constituting the coolant receiver 80. More specifically, as the covering material, for example, a polyethylene sheet having a thickness of about 0.1 mm can be used. Further, as the coating material, for example, a curable resin may be applied to portions corresponding to the inclined support surfaces 81a and 81b of the refrigerant support portion 81.

  The through-hole 81g has, for example, a rectangular shape in plan view, and is provided along the inner edge of the rectangular frame-shaped peripheral portion of the coolant receiver 80. More specifically, the coolant supporting portion 81 has a through hole 81g inside the corner of the rectangular frame-shaped peripheral portion of the coolant receiver 80. The coolant supporting portion 81 has a through hole 81g inside a corner between the peripheral portion of the coolant receiver 80 and the beam 82 extending in the longitudinal direction of the component 80a. Further, the coolant support portion 81 has a through hole 81g inside a corner between the peripheral portion of the coolant receiver 80 and the beam portion 82 extending in the short direction of the component 80a. The through hole 81g adjacent to the beam portion 82 is provided so as to cut out a part of the beam portion 82.

  FIG. 36 is a perspective view of the bottom panel 30A of the cool container 1 of the present embodiment. FIG. 37 is a perspective view of component 30A1 constituting bottom panel 30A shown in FIG. FIG. 38 is a perspective view of the component 30A1 shown in FIG. 37 as viewed from below.

  The bottom panel 30A of the cool container 1 of this embodiment differs from the bottom panel 30A of the cool container 1 of the above embodiment mainly in the following points. First, the bottom panel 30A is provided so as to be disassembled by two components 30A1. Second, the bottom panel 30A has a mesh-shaped groove 34. Third, the bottom panel 30A has a temporary hole 38 for forming a through hole through which the fastening band 500 passes. The other points of the bottom panel 30A of the cool container 1 of the present embodiment are the same as those of the bottom panel 30A of the cool container 1 of the above-described embodiment. Omitted.

  In the cold storage container 1 of the present embodiment, the bottom panel 30A, like the refrigerant receiver 80, is constituted by two generally rectangular components 30A1 in plan view. That is, when the cool container 1 is used, the two parts 30A1 can be assembled to form the bottom panel 30A, and when the cool container 1 is not used, the bottom panel 30A can be disassembled into two parts 30A1.

  The two components 30A1 combined with each other are the same component 30A1. That is, the size, shape, and material of the two components 30A1 combined with each other are the same. The bottom panel 30A shown in FIG. 36 can be assembled by assembling these two parts 30A1 so as to be opposed to each other in a state of being turned 180 degrees. That is, the bottom panel 30A is divided into two parts 30A1 of the same shape that can be combined in the disassembly direction Db and the assembly direction Da. These two components 30A1 have a fitting portion 39 at an edge that is assembled to face each other.

  The fitting portion 39 of the component 30A1 includes a protruding piece 39a and a receiving portion 39b. Here, when disassembling the bottom panel 30A in the assembled state shown in FIG. 36 into two parts 30A1, the direction in which each part 30A1 is separated is referred to as a disassembly direction Db. When assembling the bottom panel 30A with the fitting portions 39 of the two components 30A1 facing each other, the direction in which the components 30A1 are fitted is referred to as an assembly direction Da.

  The protruding piece 39a is a plate-shaped portion provided so as to protrude in the assembling direction Da from the receiving part 39b. The protruding piece 39a has, for example, a substantially trapezoidal shape in plan view of the bottom panel 30A, and trapezoidal legs on the outer edge side of the bottom panel 30A are substantially parallel to the assembling direction Da. As shown in FIG. 38, the projecting piece 39a has a concave step on the lower surface 30b of the bottom panel 30A. For example, a guide projection 39c is provided on the step surface of the projection 39a.

  The guide projection 39c has, for example, a generally isosceles triangle shape with its rounded vertex facing the assembly direction Da. For example, in a direction parallel to the lower surface 30b of the bottom panel 30A and orthogonal to the assembly direction Da, a plurality of guide protrusions 39c are arranged at equal intervals. In the thickness direction of the bottom panel 30A, the top surface of the guide projection 39c is located closer to the inner surface 30a, which is the upper surface of the bottom panel 30A, than the bottom surface of the recess 35 of the lower surface 30b of the bottom panel 30A. That is, a concave step is provided between the bottom surface of the concave portion 35 and the top surface of the guide convex portion 39c.

  The receiving portion 39b is a concave portion that receives and fits the protruding piece portion 39a. More specifically, as shown in FIG. 37, the receiving portion 39b is provided on the inner surface 30a, which is the upper surface of the bottom panel 30A, in a concave shape corresponding to the protruding piece portion 39a. More specifically, the receiving portion 39b has, for example, a substantially trapezoidal shape obtained by inverting the shape of the protruding portion 39a at an angle of 180 degrees in a plan view of the bottom panel 30A, and is provided on the outer edge side of the bottom panel 30A. The trapezoidal legs are substantially parallel to the assembly direction Da.

  The receiving portion 39b has, for example, a guide concave portion 39d that receives and fits the guide convex portion 39c. More specifically, as shown in FIG. 37, the guide recess 39d is provided in a concave shape on a step surface of a receiving portion 39b provided in a concave shape on the inner surface 30a which is the upper surface of the bottom panel 30A. More specifically, the guide concave portion 39d has, for example, a generally isosceles triangular shape obtained by inverting the shape of the guide convex portion 39c at an angle of 180 degrees in plan view of the bottom panel 30A.

  As described above, the bottom panel 30A of the present embodiment has a mesh-shaped groove 34 on the inner surface 30a that is the upper surface. More specifically, the grooves 34 are regularly formed on the inner surface 30a of the bottom panel 30A so as to leave a plurality of hexagonal islands in a staggered manner. Note that the shape of some of the islands on the inner surface 30a of the bottom panel 30A may be different from the shapes of the remaining islands to serve as a mark during assembly.

  As shown in FIG. 38, the component 30A1 has a substantially rectangular planar shape by dividing the bottom panel 30A into two parts in the assembly direction Da. The component 30A1 has, for example, a plurality of temporary holes 38 along the outer edge of the recess 35 in the lower surface 30b. The temporary hole 38 is opened in the lower surface 30b of the component 30A1, but does not penetrate the component 30A1, and has a bottom wall between itself and the inner surface 30a that is the upper surface of the bottom panel 30A. The temporary hole 38 is provided, for example, in a slit-like shape extending along the outer edge of the recess 35.

  The shape of the temporary hole 38 corresponds to the cross-sectional shape of the fastening band 500 that secures the contents 200, and has a shape in which the fastening band 500 can be inserted. In addition, the bottom wall of the temporary hole 38 is set to have a thickness such that the bottom wall of the temporary hole 38 is broken when the distal end of the fastening band 500 is inserted into the temporary hole 38 and pushed in, and the fastening band 500 can be penetrated.

  As shown in FIG. 38, two provisional holes 38 are provided at intervals in, for example, an intermediate portion of the outer edge of the recess 35 in the longitudinal direction of the component 30A1 having a substantially rectangular shape in a plan view. In addition, one temporary hole 38 is provided, for example, in the middle of the outer edge of the recess 35 in the short direction of the component 30A1 that is generally rectangular in plan view. That is, the bottom panel 30A formed by the two components 30A1 has two provisional holes 38 in the middle of each side of the outer edge of the recess 35 on the lower surface 30b. The positions of these provisional holes 38 correspond to, for example, positions where the fastening bands 500 pass through in the pallet 100 shown in FIG.

  Hereinafter, the operation of the cold storage container 1 and the refrigerant receiver 80 of the present embodiment will be described.

  FIG. 39 is a perspective view showing an example of collective packaging by the cool container 1 of the present embodiment. In the cool container 1 of the present embodiment, for example, similarly to the cool container 1 of the above-described embodiment, a bottom panel 30A is arranged on a pallet 100 shown in FIG. At this time, the fastening band 500 is passed through a predetermined position of the pallet 100 in advance, and the tip of the fastening band 500 is inserted into the temporary hole 38 of the bottom panel 30A. Thereby, the fastening band 500 penetrates the bottom wall of the temporary hole 38, and the fastening band 500 passed through the predetermined position of the pallet 100 penetrates the bottom panel 30A.

  Next, the side panel 10 is attached to the bottom panel 30A as shown in FIG. Here, illustration of the fastening band 500 penetrating the bottom panel 30A is omitted. Further, similarly to the cold storage container 1 of the above-described embodiment shown in FIG. Here, the heat retaining sheet 70 is disposed for the purpose of keeping the contents 200 cool. Therefore, hereinafter, the heat retaining sheet 70 described in the above embodiment will be referred to as a “cooling sheet 70”. In the state shown in FIG. 24, for example, a through hole for passing fastening band 500 may be provided in cold insulation sheet 70, and fastening band 500 that has penetrated bottom panel 30 </ b> A may be passed through the through hole of cold insulation sheet 70.

  Next, like the cold storage container 1 of the above-described embodiment shown in FIG. 25, a plurality of contents 200 are stacked on the cold storage sheet 70 arranged on the inner surface 30a of the bottom panel 30A. Here, the contents 200 are, for example, fresh foods such as meat and fresh fish stored in a cardboard box, and are pre-cooled to a temperature as low as possible without freezing them. Again, illustration of the fastening band 500 penetrating the bottom panel 30A is omitted.

  Next, as shown in FIG. 39, the contents 200 accumulated on the bottom panel 30 </ b> A are fixed by fastening with a fastening band 500. Next, as shown in FIG. 33, a refrigerant receiver 80 including two parts 80a is assembled. Next, similarly to the refrigerant receiver 50 shown in FIG. 26, the refrigerant panel 80 of the present embodiment is supported by the side panel 10. In addition, the refrigerant receiver 80 may be disposed on the upper part of the cold storage container 1 by, for example, being placed on the contents 200 accumulated on the bottom panel 30A. Further, the refrigerant receiver 80 may be arranged on the upper part of the cold storage container 1 by being supported by a support standing on the bottom panel 30A of the cold storage container 1. Next, as shown in FIG. 33, the refrigerant C is disposed on the refrigerant supporting portion 81 of the refrigerant receiver 80.

  More specifically, the first cooling air groove 81 d, the second cooling air groove 81 e, and the coolant are formed on the first inclined support surface 81 a of the coolant support portion 81 so as to cover the through hole 81 g opposite to the corner 85. Place C. The refrigerant C arranged on the first inclined support surface 81a is, for example, rectangular plate-shaped dry ice. Further, the refrigerant C is disposed on the second inclined support surface 81b of the refrigerant support portion 81 so as to cover the first cool air groove 81d, the second cool air groove 81e, and the through hole 81g opposite to the corner 85. I do. Refrigerant C arranged on second inclined support surface 81b is, for example, rectangular plate-shaped dry ice larger than dry ice arranged on first inclined support surface 81a.

  In this way, the refrigerant C is disposed on all of the plurality of refrigerant support portions 81 of the refrigerant receiver 80. The coolant C may be arranged, for example, on the center of the coolant receiver 80 or on the beam 82. The refrigerant C disposed on the center portion of the refrigerant receiver 80 or on the beam portion 82 may be, for example, dry ice or ice.

  Next, as shown in FIG. 29, similarly to the cold storage container 1 of the above-described embodiment, a plurality of contents 200 accumulated on the bottom panel 30A and a refrigerant receiver disposed thereon and supporting the refrigerant C are provided. 80 is covered with a cold insulation sheet 70. Next, as shown in FIG. 30, the ceiling panel 30B is attached to the upper end of the side panel 10 similarly to the cold storage container 1 of the above-described embodiment, and the assembly of the cold storage container 1 of the present embodiment is completed. Note that, in the cool container 1 of the present embodiment, the fastening band 500 outside the cool container 1 can be omitted.

  As described above, the cold storage container 1 of the present embodiment is used for collective packaging of the contents 200, which is a cardboard box in which articles requiring chilled transport are stored, for example. Such a cold storage container 1 has, for example, the following problems.

  As described above, in the chilled transport, the contents 200 are pre-cooled and accumulated in the cold storage container 1. In this case, the temperature of the portion outside the side panel 10 of the cold storage container 1 is likely to rise under the influence of the outside air temperature, while the temperature of the portion away from the side panel 10 is increased. It is hardly affected by the outside temperature and hardly rises. Further, the content 200 close to the refrigerant C is excessively cooled by the cool air of the refrigerant C, and the fresh food inside is easily frozen. As described above, the cold storage container 1 has a problem that the temperatures of the plurality of contents 200 accumulated therein are likely to be uneven.

  Here, the refrigerant receiver 80 of the present embodiment shown in FIG. 33 is supported by the side panel 10 of the cool container 1 and arranged above the cool container 1, similarly to the refrigerant receiver 50 of the above-described embodiment shown in FIG. Is done. The coolant receiver 80 of the present embodiment includes a concave coolant support portion 81 provided between the center and the peripheral portion.

  With this configuration, the refrigerant C can be held in the concave refrigerant support portion 81 between the central portion and the peripheral portion of the refrigerant receiver 80. More specifically, the step between the peripheral edge of the refrigerant receiver 80 and the concave refrigerant support part 81 causes the refrigerant C held by the refrigerant support part 81 to move outward beyond the peripheral edge of the refrigerant receiver 80. Is prevented. Further, the step between the central portion of the refrigerant receiver 80 and the concave refrigerant support portion 81 prevents the refrigerant C held by the refrigerant support portion 81 from moving to the central portion of the refrigerant receiver 80. Thereby, the refrigerant C can be held at the optimum position on the refrigerant receiver 80. Therefore, according to the present embodiment, the refrigerant receiver 80 that supports the refrigerant C disposed in the cold storage container 1 and can maintain the cold state of the content 200 without causing temperature unevenness or freezing failure of the content 200. Can be provided.

  Further, in the present embodiment, the peripheral portion of the coolant receiver 80 has a plurality of cutouts 83 and a plurality of communication grooves 84 that communicate the coolant support 81 and the cutouts 83.

  With this configuration, the cool air that has reached the vicinity of the peripheral edge of the refrigerant receiver 80 flows from the refrigerant support part 81 to the notch 83 through the communication groove 84, and passes through the notch 83 to a position below the refrigerant receiver 80. Flows. Thereby, cold air can be efficiently supplied from the refrigerant support portion 81 to the vicinity of the side panel 10 of the cold storage container 1. Therefore, of the plurality of contents 200 accumulated inside the cold storage container 1, the contents 200 in the vicinity of the side panel 10, whose temperature tends to rise under the influence of the outside air temperature, are cooled by the cool air supplied from the refrigerant receiver 80. It is cooled efficiently, and the temperature of the plurality of contents 200 can be made more uniform.

  Further, in the refrigerant receiver 80 of the present embodiment, the refrigerant support portion 81 includes the inclined support surfaces 81a and 81b that support the refrigerant C, and the cool air grooves provided on the inclined support surfaces 81a and 81b and communicating with the cutout portions 83. 81d and 81e, and a through-hole 81g adjacent to the periphery of the coolant receiver 80. More specifically, the inclined support surfaces 81a and 81b are inclined so as to approach the lower surface of the refrigerant receiver 80, for example, from the center of the refrigerant receiver 80 to the peripheral edge.

  With this configuration, the cool air that is the air cooled by the refrigerant C flows from the central portion of the refrigerant receiver 80 to the peripheral portion along the inclined support surfaces 81a and 81b due to the inclination of the inclined support surfaces 81a and 81b. The cool air that has flown along the inclined support surfaces 81a and 81b and has reached the vicinity of the peripheral edge of the refrigerant receiver 80 flows below the refrigerant receiver 80 through the through-hole 81g adjacent to the peripheral edge. Part of the cool air flows through the cool air grooves 81d and 81e provided on the inclined support surfaces 81a and 81b, and flows below the refrigerant receiver 80 through the notch 83. Further, a part of the cool air flows from the coolant support portion 81 into the notch portion 83 through the communication groove 84, and flows through the notch portion 83 to below the coolant receiver 80.

  As described above, according to the refrigerant receiver 80 of the present embodiment, the refrigerant C is supported by the refrigerant supporting portions 81 on the upper surface of the refrigerant receiver 80, and the cool air cooled by the refrigerant C is moved from the central part to the peripheral part of the refrigerant receiver 80. Can lead to Furthermore, the cool air that has reached the peripheral edge of the refrigerant receiver 80 can be supplied to the vicinity of the side panel 10 of the cold storage container 1 through the plurality of through holes 81g and the plurality of notches 83. Therefore, of the plurality of contents 200 accumulated inside the cold storage container 1, the contents 200 in the vicinity of the side panel 10, whose temperature tends to rise under the influence of the outside air temperature, are cooled by the cool air supplied from the refrigerant receiver 80. It is cooled efficiently, and the temperature of the plurality of contents 200 can be made more uniform.

  Further, the refrigerant C supported by the inclined support surfaces 81a and 81b comes into contact with the air whose temperature has increased in the through-hole 81g inside the peripheral portion of the refrigerant receiver 80 and the notch portion 83 in the peripheral portion of the refrigerant receiver 80. It will be easier. Therefore, the refrigerant C sublimates and disappears on the peripheral side in a shorter time than on the central side of the refrigerant receiver 80. Then, due to the action of gravity, the refrigerant C slides on the inclined support surfaces 81a and 81b from the center part side of the refrigerant receiver 80 to the peripheral part side, and moves to a position where the end part on the peripheral part side contacts the peripheral part. .

  As a result, the refrigerant C remains at the outer edges of the inclined support surfaces 81a and 81b provided with the through holes 81g and the communication grooves 84 until the refrigerant C is completely eliminated. Therefore, until the refrigerant C disappears, the air is cooled by the refrigerant C at a position closer to the through hole 81 g adjacent to the peripheral edge of the refrigerant receiver 80 and the notch 83 provided on the peripheral edge of the refrigerant receiver 80. can do. Thereby, lower temperature cold air can be more efficiently supplied to the upper part of the inner surface 10a of the side panel 10 through the through hole 81g and the notch 83.

  Further, in the coolant receiver 80 of the present embodiment, the inclined support surfaces 81a and 81b are surfaces of a covering material that covers at least a part of the coolant support portion 81, for example. With this configuration, for example, when the material of the refrigerant receiver 80 is a foamed resin, the inclined support surfaces 81a and 81b are made smoother than the surface of the foamed resin, and the stationary between the inclined support surfaces 81a and 81b and the refrigerant C is stopped. The coefficient of friction can be lower than the coefficient of static friction between the surface of the material of the coolant receiver 80 and the coolant C. Thereby, the sliding of the refrigerant C on the inclined support surfaces 81a and 81b can be improved, and the refrigerant C can be easily moved from the central part side to the peripheral part side of the refrigerant receiver 80. Further, the coolant supporting portion 81 can be protected by a covering material having higher hardness and durability than the material of the coolant receiver 80.

  Further, the cold storage container 1 of the present embodiment is an assembled cold storage container having a bottom panel 30A, a side panel 10, and a ceiling panel 30B assembled to each other, similarly to the cold storage container 1 of the above-described embodiment. Further, in the cold storage container 1 of the present embodiment, a ventilation groove 11 which is a ventilation path for sending upper cool air downward is formed in the inner surface 10a of the side panel 10 along the vertical direction.

  In other words, the cold storage container 1 of the present embodiment includes the bottom panel 30A, the side panel 10, and the ceiling panel 30B, and the fitting portions 12, 13 of the side panel 10 have irregularities on the bottom panel 30A and the ceiling panel 30B. It is an assembly-type cold insulation container in which the portion 31 is detachably fitted. In a state where the cold storage container 1 is assembled, the side panel 10 has a plurality of ventilation grooves 11 extending along a height direction perpendicular to the bottom panel 30A on the inner surface 10a.

  With such a configuration, the cool air cooled by the refrigerant C supported by the refrigerant receiver 80 passes through the through hole 81g and the notch 83 of the refrigerant receiver 80, and reaches the inner surface 10a of the side panel 10 at the upper part of the side panel 10. It flows into the provided ventilation groove 11. The cool air that has flowed into the ventilation groove 11 flows downward through the ventilation groove 11. Thereby, the contents 200 located in the vicinity of the side panel 10 where the temperature is likely to rise due to the influence of the outside air temperature can be efficiently cooled by cold air flowing downward from the upper part of the side panel 10 and kept cool.

  FIG. 40 is a perspective view showing a state where the fitting portion 13 of the upper unit panel 10A and the fitting portion 12 of the lower unit panel 10B that constitute the side panel 10 of the cold storage container 1 of the present embodiment are fitted. FIG.

  Similar to the cold storage container 1 of the above-described embodiment, in the cold storage container 1 of the present embodiment, the side panel 10 includes at least a plurality of unit panels 10A and 10B in the vertical direction. On one surface of the plurality of unit panels 10A and 10B, a ventilation groove 11 forming a ventilation path is formed along the vertical direction. Fitting portions 12 and 13 are provided at the vertical edges of the unit panels 10A and 10B, respectively. The fitting portions 12 and 13 are formed with a communication portion communicating with the ventilation groove 11. When the fitting part 13 of the upper unit panel 10A and the fitting part 12 of the lower unit panel 10B are fitted, the ventilation groove 11 of the upper unit panel 10A and the ventilation groove 11 of the lower unit panel are Are communicated through the communication portion.

  That is, the fitting portions 12 and 13 include the fitting concave portion 15 and the fitting convex portion 14 formed on the vertical edges of the unit panels 10A and 10B. The communication portion includes a vertical groove 14a and a horizontal groove 14b provided in the fitting projection 14. The vertical groove 14a communicates with the ventilation groove 11. When the fitting portion 13 of the upper unit panel 10A and the fitting portion 12 of the lower unit panel 10B are fitted, the lateral grooves 14b provided in the fitting projections 14 are connected to each other, and the upper unit The ventilation groove 11 of the panel 10A communicates with the ventilation groove 11 of the lower unit panel 10B.

  In other words, in the cool container 1 of the present embodiment, the side panel 10 is configured to be disassembled by the plurality of unit panels 10A and 10B. Each of the unit panels 10A and 10B has fitting portions 12 and 13 at one end and the other end in the height direction, and the fitting portions 13 of one unit panel 10A and the other unit panel 10B arranged in the height direction. The fitting portion 12 is provided so as to be fitted. One end of the fitting portions 12 and 13 communicates with the ventilation groove 11 and extends in the height direction of the cold storage container 1 along the inner surface 10a of the unit panel 10A or 10B. It has a lateral groove 14b which communicates with the unit panels 10A and 10B and extends in the lateral direction orthogonal to the height direction of the cold storage container 1 along the inner surfaces 10a of the unit panels 10A and 10B. The refrigerating container 1 of the present embodiment is fitted to the fitting portion 13 of one unit panel 10A in a state where the fitting portion 13 of one unit panel 10A and the fitting portion 12 of the other unit panel 10B are fitted. The lateral groove 14b provided and the lateral groove 14b provided in the other unit panel 10B communicate in the lateral direction.

  With such a configuration, when the cool container 1 is not used, the side panel 10 can be disassembled into a plurality of unit panels 10A and 10B, and the cool container 1 can be compactly stored, stored, or transported. it can. When using the cold storage container 1, the side panel 10 can be configured by assembling a plurality of unit panels 10A and 10B. Note that the side panel 10 can be configured by one unit panel 10A or unit panel 10B, or three or more unit panels 10A or unit panels 10B. Thereby, the height of the side panel 10 can be changed according to the height of the content 200 accommodated in the cool container 1.

  Further, as shown in FIG. 40, the fitting portion 13 of one unit panel 10A and the fitting portion 12 of the other unit panel 10B arranged in the height direction are fitted. Then, the lateral groove 14b provided in the fitting portion 13 of one unit panel 10A and the lateral groove 14b provided in the other unit panel 10B communicate in the lateral direction. Thus, the plurality of ventilation grooves 11 provided in one unit panel 10A and the plurality of ventilation grooves 11 provided in the other unit panel 10B are combined with the plurality of vertical grooves 14a of the unit panels 10A and 10B. The communication can be made through the lateral groove 14b.

  Thereby, the cool air supplied from the peripheral portion of the coolant receiver 80 to the upper part of the plurality of ventilation grooves 11 provided in one of the unit panels 10A is supplied to the unit air from the plurality of ventilation grooves 11 provided in the unit panel 10A. It flows into a plurality of vertical grooves 14a provided in panel 10A. The cool air flowing into the plurality of vertical grooves 14a of one unit panel 10A flows through the horizontal grooves 14b of the unit panel 10A, and flows into the horizontal grooves 14b of the other unit panel 10B. The cool air flowing into the lateral groove 14b of the other unit panel 10B flows through the vertical groove 14a of the unit panel 10B, flows into the ventilation groove 11 of the unit panel 10B, and reaches the bottom panel 30A.

  As described above, according to the above configuration, the cool air supplied from the peripheral portion of the refrigerant receiver 80 to the upper portion of the one unit panel 10A is supplied to the ventilation groove 11, the vertical groove 14a, the horizontal groove 14b, and the unit panel 10A. The panel 10B can be guided to the bottom panel 30A through the horizontal groove 14b, the vertical groove 14a, and the ventilation groove 11 of the panel 10B. Therefore, according to the cold storage container 1 of the present embodiment, the contents 200 located in the vicinity of the side panel 10 whose temperature is likely to rise due to the influence of the outside air temperature are cooled by the cool air flowing from the peripheral portion of the coolant receiver 80 to the bottom panel 30A. It can be cooled efficiently and kept cool.

  Further, according to the above configuration, when the cold storage container 1 is assembled, a flow path that connects the inside and the outside of the cold storage container 1 is formed between the bottom panel 30A and the ceiling panel 30B and the side panel 10. Can be prevented. More specifically, for example, unit panel 10A and unit panel 10B do not have vertical groove 14a and horizontal groove 14b in fitting portions 12 and 13, and ventilation groove 11 extends to the end surfaces of fitting portions 12 and 13. Assume that it is extended. In this case, the ventilation groove 11 forms a flow path between the bottom panel 30 </ b> A and the ceiling panel 30 </ b> B and the side panel 10 to communicate the inside and the outside of the cold storage container 1.

  On the other hand, the cold storage container 1 of the present embodiment has the above-described configuration, and thus has the following operation. When the fitting portion 12 of one unit panel 10A and the uneven portion 31 of the ceiling panel 30B are fitted together, both ends of the horizontal groove 14b communicating with the ventilation groove 11 via the vertical groove 14a in the unit panel 10A, The panel 30B is closed by the side surface of the projection 32. Similarly, when the fitting portion 13 of the other unit panel 10B and the uneven portion 31 of the bottom panel 30A are fitted together, both ends of the lateral groove 14b communicating with the ventilation groove 11 via the vertical groove 14a in the unit panel 10B. The portion is closed by the side surface of the convex portion 32 of the bottom panel 30A. Therefore, according to the cool container 1 of the present embodiment, it is possible to prevent the formation of a flow path that connects the inside and the outside of the cool container 1 between the bottom panel 30A and the ceiling panel 30B and the side panel 10. As a result, the cooling performance of the assembled cold storage container 1 can be improved.

  Further, similarly to the cold storage container 1 of the above-described embodiment, in the cold storage container 1 of the present embodiment, the fitting portions 12 and 13 are formed by a plurality of fittings formed on the vertical edges of the unit panels 10A and 10B. It is composed of a recess 15 and a plurality of fitting projections 14. When the fitting portion 13 of the upper unit panel 10A and the fitting portion 12 of the lower unit panel 10B are fitted, the fitting recesses 15 to be brought into contact with each other have an end face of one fitting recess 15 therebetween. A protrusion 36 is formed, and a recess 37 for receiving the protrusion 36 is formed on the end face of the other fitting protrusion 14.

  In other words, in the cold storage container 1 of the present embodiment, the unit panels 10A and 10B have the projections 36 and the recesses 37 on one side surface and the other side surface of the fitting projections 14 and 16 of the fitting portions 12 and 13, respectively. have. The projections 36 and the depressions 37 are provided such that the projections 36 of one unit panel 10A and the depressions 37 of the other unit panel 10B engage when the two unit panels 10A and 10B are combined. When the two unit panels 10A and 10B are disassembled, the projection 36 and the recess 37 are disengaged from the projection 36 of the one unit panel 10A and the recess 37 of the other unit panel 10B. It is provided as follows.

  With such a configuration, the worker who assembles the cool container 1 can intuitively confirm that the fitting portion 13 of the unit panel 10A and the fitting portion 12 of the unit panel 10B are properly fitted. Can be. Specifically, when the worker properly fits the fitting portion 13 of the unit panel 10A and the fitting portion 12 of the unit panel 10B, the protrusion 36 of the one unit panel 10A and the 37 of the other unit panel 10B. And the relative movement between the unit panel 10A and the unit panel 10B is restricted. Thereby, the operator can intuitively confirm that the fitting portion 13 of the unit panel 10A and the fitting portion 12 of the unit panel 10B are properly fitted. On the other hand, when the unit panel 10A and the unit panel 10B are separated, the engagement between the projection 36 of one unit panel 10A and the recess 37 of the other unit panel 10B is released, which hinders disassembly of the side panel 10. Will not come. Such engagement between the projection 36 and the recess 37 can be realized by adjusting the height of the projection 36 engaging with the recess 37.

  In addition, the cold storage container 1 of the above-described embodiment includes a refrigerant receiver 50 that supports a refrigerant, as shown in FIGS. The coolant receiver 50 includes a main body 51 supported by the side panel 10, a partition wall 54 for dividing an upper surface 51 a of the main body 51 into a first space 52 and a second space 53, And a flow channel that is fed downward from the upper surface 51a of the portion 51. In addition, a passage 56 that connects the first space 52 and the second space 53 is formed in the partition wall portion 54.

  That is, the cold storage container 1 of the above embodiment shown in FIGS. 16 to 21 has the bottom panel 30A as the bottom plate, the side panel 10 as the side plate surrounding the bottom plate periphery, and the opening formed at the upper end of the side plate. It consists of a unit panel 10B which is a top plate to close. The cold storage container 1 of the above-described embodiment includes a refrigerant receiver 50 that supports a refrigerant disposed at an upper part in the container. The coolant receiver 50 is installed on an upper part of the side plate. The coolant receiver 50 includes a main body 51, a partition wall 54 that is a partition wall that partitions the first space 52 and the second space 53 on the upper surface 51 a of the main body 51, and cools the refrigerant to the upper surface 51 a of the main body 51. And a flow channel for sending the fluid downward. A refrigerant having a relatively low melting point is disposed in the first space 52, and a refrigerant having a relatively high melting point is disposed in the second space 53.

  That is, the refrigerant receiver 50 of the above-described embodiment shown in FIGS. 16 to 21 includes the partition wall 54 that partitions the first space 52 and the second space 53 on the upper surface 51 a of the main body 51, and cools the refrigerant into the main body 51. And a flow path for sending the refrigerant downward from the upper surface 51a of the first 51. The first space 52 and the second space 53 support the refrigerant.

  In other words, the refrigerant receiver 50 of the above-described embodiment shown in FIGS. 16 to 21 is supported on the side panel 10 of the cool container 1 and arranged on the cool container 1. The coolant receiver 50 has a partition wall portion 54 for partitioning a central portion and a peripheral edge portion thereof, a refrigerant support portion provided on the central portion and the peripheral edge portion thereof, and a refrigerant support portion provided on the partition wall portion 54 and having a central portion. And a passage 56 that communicates with the peripheral portion of the refrigerant support portion, a plurality of through holes 55 provided in the peripheral portion of the refrigerant support portion, and a plurality of notches 58 provided on the outer edge of the peripheral portion. I have.

  With this configuration, the coolant receiver 50 is provided at the center of the upper surface 51 a of the main body 51, which is the first space 52, at the center, and at the periphery of the upper surface 51 a of the main body 51, which is the second space 53. The coolant can be supported by the provided coolant support portions. Specifically, as described above, for example, dry ice can be placed on the coolant support portion at the center of the coolant receiver 50, and ice can be placed on the coolant support portion at the periphery of the coolant receiver 50. In this case, the cool air cooled by the dry ice passes through the passage 56 provided in the partition wall 54 and cools the ice at the peripheral edge of the refrigerant receiver 50. Thereby, the melting of the ice arranged on the refrigerant supporting portion at the peripheral portion of the refrigerant receiver 50 can be delayed.

  Further, the cool air cooled by the dry ice supported by the coolant support portion at the center of the coolant receiver 50 and cooled by passing through the passage 56 cools the ice through the coolant support portion provided at the peripheral edge portion of the coolant receiver 50. It passes through the hole 55 and the notch 58 on the outer edge of the peripheral portion. In addition, the cool air cooled by the ice supported by the coolant supporting portion at the periphery of the coolant receiver 50 also passes through the through hole 55 and the notch 58 in the same manner. The cool air is supplied from the peripheral edge of the refrigerant receiver 50 to the vicinity of the side panel 10 on the upper part of the cold storage container 1.

  Therefore, in the refrigerant receiver 50 of the above-described embodiment shown in FIGS. 16 to 21, the same effect as the refrigerant receiver 80 of the present embodiment can be obtained. That is, of the plurality of contents 200 accumulated inside the cold storage container 1, the contents 200 near the side panel 10 whose temperature is likely to rise under the influence of the outside air temperature are the cold air supplied from the refrigerant receiver 50. Thus, the plurality of contents 200 can be cooled more efficiently, and the temperatures of the plurality of contents 200 can be made more uniform.

  Further, like the cool container 1 of the above-described embodiment, the cool container 1 of the present embodiment includes a cool sheet 70 that vertically covers the contents 200 accommodated in the cool container 1. That is, similarly to the cold storage container 1 of the above-described embodiment, in the cold storage container 1 of the present embodiment, at least the inside of the side panel 10 as the side plate and the ceiling panel 30B as the top plate is covered with the cold storage sheet 70. I have. The cold insulation sheet 70 has a metal layer on at least one surface 70 a of the foamed resin sheet, and the surface 70 a of the metal layer of the cold insulation sheet 70 faces the upper surface of the main body of the coolant receiver 80.

  In other words, the cold storage container 1 of the present embodiment covers at least a part of the refrigerant C supported by the refrigerant receiver 80 and the cold storage sheet 70 that covers at least a part of the content 200 stored in the cold storage container 1. Have. The cold insulation sheet 70 has a metal layer facing the refrigerant C and the contents 200, and a foamed resin layer facing the ceiling panel 30B and the side panel 10.

  With such a configuration, the foam resin layer of the cold insulation sheet 70 can insulate the space between the ceiling panel 30B and the side panel 10 and the refrigerant C, and the space between the side panel 10 and the content 200. Thereby, the heat transmitted from the outside of the cold storage container 1 to the refrigerant C and the contents 200 via the ceiling panel 30B and the side panel 10 can be reduced. Further, the metal layer of the cold insulation sheet 70 is cooled by the refrigerant C, and takes away the heat of the contents 200. Thereby, the contents 200 in the vicinity of the side panel 10 whose temperature is likely to rise under the influence of the outside air temperature among the plurality of contents 200 accumulated inside the cool container 1 are efficiently used by the metal layer of the cool sheet 70. By cooling well, the temperature of the plurality of contents 200 can be made more uniform.

  Further, in the cool container 1 of the present embodiment, the bottom panel 30A has a plurality of temporary holes 38 shown in FIG. 38 as described above. The temporary hole 38 has a bottom wall that is broken by passing through a fastening band 500 for securing the contents 200 of the cool container 1.

  With this configuration, when the fastening band 500 does not pass through the temporary hole 38, the temporary hole 38 can be maintained in a closed state, and the cool air inside the cold storage container 1 is prevented from leaking from the temporary hole 38 to the outside. be able to. When the fastening band 500 is passed through the temporary hole 38, the contents 200 can be fixed to the pallet 100 and the bottom panel 30A inside the cool container 1 as shown in FIG. Thereby, the stability of the contents 200 inside the cold storage container 1 can be improved, and the collapse of the load can be prevented.

  As described above, according to the present embodiment, it is possible to provide the cold storage container 1 that can maintain the cold state of the content 200 without causing temperature unevenness or freezing failure in the content 200. Further, according to the present embodiment, the refrigerant receiver 80 that supports the refrigerant C disposed in the cold storage container 1 and can maintain the cold state of the content 200 without causing temperature unevenness or freezing failure of the content 200. Can be provided.

  In addition, since the contents 200 are collectively packaged by the cool container 1, it is not necessary to use an insulating container made of a foamed resin for the packaging of the individual contents 200, so that the amount of goods transported per unit volume can be improved and the transportation can be improved. It is possible to improve efficiency. That is, the cold storage container 1 of the present embodiment has high transport efficiency, and has a light weight and high cold storage performance as described above. Therefore, for example, it is suitable for air transportation that can transport a long distance in a short time and has a high transportation cost compared to other transportation methods.

DESCRIPTION OF SYMBOLS 1 ... Insulated container 10 ... Side panel 10A, 10B ... Unit panel 11 ... Vent groove 12, 13, 18, 19 ... Fitting part 14, 16, 21, 22, ... Fitting Convex parts 15, 17, 20, 23 ... fitting concave parts 24, 25 ... holding grooves 30A ... bottom panel 30B ... ceiling panel 31 ... concave and convex parts 32 ... convex parts 33 ... ··· Recess 35 ··· Recess 36 ··· Projection 37 ··· Recess 38 ··· Temporary hole 50 ··· Refrigerant receiver 51 ··· Main body 52 ··· First space 53 ··· Second Space 54 ... Partition wall 55 ... Through hole 56 ... Passage 57 ... Water receiving part 58 ... Notch 60 ... Reinforcement 70 ... Heat insulating sheet 80 ... Refrigerant receiver 81 ··· Refrigerant support portion 83 ··· Notch portion 84 ··· Communication groove 81a · · · Inclined support surface 81b · · · Inclined support surface 81 ... cold groove 81e ... cold groove 81 g ... through hole 100 ... pallet 200 ... contents 300 ... cavity 400 ... dry ice 410 ... ice 500 ... fastening band

Claims (16)

An assembled cold storage container having a bottom panel, a side panel, and a ceiling panel assembled together,
A cold storage container, characterized in that a ventilation path for sending upward cool air downward is formed in the inner surface of the side panel along the vertical direction. The side panel is composed of a plurality of unit panels at least vertically.
On one surface of the unit panel, a ventilation groove forming the ventilation path is formed along the up-down direction, and a fitting portion is provided at an up-down direction edge of the unit panel,
In the fitting portion, a communication portion communicating with the ventilation groove is formed,
When the fitting part of the upper unit panel and the fitting part of the lower unit panel are fitted, the ventilation groove of the upper unit panel and the ventilation groove of the lower unit panel The cold storage container according to claim 1, wherein the container is communicated through the communication portion. The fitting portion includes a fitting concave portion and a fitting convex portion formed on an edge in the vertical direction of the unit panel,
The communication portion includes a vertical groove and a horizontal groove provided in the fitting protrusion,
The vertical groove communicates with the ventilation groove,
When the fitting portion of the upper unit panel and the fitting portion of the lower unit panel are fitted, the lateral grooves provided in the fitting projection are connected to each other, and the upper The cold storage container according to claim 2, wherein the ventilation groove of the unit panel and the ventilation groove of the lower unit panel communicate with each other. The fitting portion is composed of a plurality of fitting concave portions and a plurality of fitting convex portions formed on the vertical edge of the unit panel,
When the fitting portion of the upper unit panel and the fitting portion of the lower unit panel are fitted, the end face of one of the fitting protrusions that comes into contact with each other. 4. The cold storage container according to claim 2, wherein a projection is formed on the other end, and a recess for receiving the projection is formed on an end surface of the other fitting projection. A refrigerant receiver supporting the refrigerant is provided,
The coolant receiver includes a main body supported by the side panel, a partition wall that divides an upper surface of the main body into a first space and a second space, and cools the cooling air below the upper surface of the main body. 3. The cold storage container according to claim 1, further comprising: a flow channel that is fed to a side.   The cold storage container according to claim 5, wherein a passage communicating the first space and the second space is formed in the partition wall.   The cold storage container according to any one of claims 1 to 6, further comprising: a heat insulating sheet that covers contents stored in the cold storage container in a vertical direction. A bottom plate, a side plate surrounding the bottom plate peripheral edge, and a cold storage container including a top plate closing an opening formed at an upper end portion of the side plate,
A refrigerant receiver that supports a refrigerant disposed at an upper part in the cold storage container,
The refrigerant receiver is installed on an upper portion of the side plate,
The coolant receiver has a main body, a partition wall that divides a first space and a second space on an upper surface of the main body, and a flow path that sends cool air of the refrigerant downward from the upper surface of the main body. ,
A refrigerant container having a relatively low melting point disposed in the first space, and a refrigerant having a relatively high melting point disposed in the second space. At least a cold insulation sheet is covered inside the side plate and the top plate,
The cold insulation sheet has a metal layer on at least one surface of the foamed resin sheet,
The cold storage container according to claim 8, wherein a surface of the metal layer of the cold insulating sheet is directed toward an upper surface of the main body of the coolant receiver. A partition wall that partitions the first space and the second space on the upper surface of the main body, and a flow path that sends cool air of the refrigerant downward from the upper surface of the main body,
A refrigerant receiver supporting a refrigerant in the first space and the second space. A refrigerant receiver arranged at the upper part of the cold storage container,
A coolant receiver comprising a coolant support portion provided in a concave shape between a central portion and a peripheral portion of the coolant receiver.   The refrigerant receiver according to claim 11, wherein the peripheral portion has a plurality of cutouts, and a plurality of communication grooves communicating the coolant support and the cutouts.   The refrigerant support portion has an inclined support surface that supports the refrigerant, a cool air groove provided on the inclined support surface and communicating with the cutout portion, and a through hole adjacent to the peripheral portion, The refrigerant receiver according to claim 12, wherein:   14. The refrigerant receiver according to claim 13, wherein the inclined support surface is inclined so as to be closer to a lower surface of the refrigerant receiver as approaching from the central portion to the peripheral portion.   The refrigerant receiver according to claim 13, wherein the inclined support surface is a surface of a covering material that covers at least a part of the refrigerant support portion. The bottom panel has a plurality of temporary holes,
The cool container according to claim 1, wherein the temporary hole has a bottom wall that is broken by passing through a fastening band for securing the contents of the cool container.

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