JP2015009838A - Constant-temperature holding container and constant-temperature conveyance container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a constant-temperature holding container capable of accurately performing thermal management of a constant-temperature chamber by keeping a temperature difference in the constant-temperature chamber within a predetermined range and capable of maintaining quality of a conveyance article accommodated in the constant-temperature chamber.SOLUTION: A constant-temperature holding container comprises a housing that defines a constant-temperature chamber for accommodating a conveyance article. The housing is made of a heat insulation material. A plurality of accommodation parts for selectively and removably accommodating a heat storage agent are disposed throughout an inner surface of the housing facing the constant-temperature chamber.

Description

  The present invention relates to a constant temperature holding container that keeps a transported object housed in a constant temperature room at a predetermined temperature using a plurality of cooling agents or heat insulating agents, and a constant temperature conveyance container that covers the constant temperature holding container with an outer box.

  For example, when transporting an object to be transported that requires temperature control, such as pharmaceuticals and fresh foods, a cold container as disclosed in Patent Document 1 is used. The conventional cold storage container has a housing made of a heat insulating material such as polystyrene foam. The casing has a constant greenhouse shielded from the outside air, and the cold storage agent is accommodated in the constant greenhouse along with the object to be conveyed.

  The cold insulation agent is an element for keeping the constant temperature room at a low temperature, and has various forms such as a flat box shape or a rod shape. In many cases, the cooling agent is randomly stored in the constant temperature chamber of the housing in a form such as being in contact with the object to be transported or adjacent to the object to be transported.

JP 2011-255842 A

  According to the conventional cold storage container, since the cold storage agent is randomly stored in the fixed greenhouse, there is no particular rule on the position of the cold storage agent with respect to the fixed greenhouse and the object to be transported.

  For this reason, it is inevitable that the variation in temperature distribution in the constant temperature chamber becomes large, and that the cooling condition of the conveyed object is easily affected by the position of the cooling agent. Therefore, for example, the object to be conveyed may freeze undesirably, or the temperature of the object to be conveyed may deviate from a predetermined temperature range. Therefore, there is room for improvement in maintaining the quality of the object to be transported accommodated in the fixed greenhouse.

  The object of the present invention is to keep the temperature difference in the constant temperature room within a predetermined temperature range, to accurately control the temperature of the constant temperature room, and to maintain the quality of the transported object accommodated in the constant temperature room. The object is to obtain a container and a constant temperature transport container.

  A constant temperature holding container according to one embodiment of the present invention includes a housing that defines a constant temperature chamber in which a transported object is accommodated. The said housing | casing is comprised with the heat insulating material. A plurality of storage portions in which a plurality of heat storage agents are selectively detachably stored are arranged on the inner surface of the casing facing the constant temperature chamber.

  Furthermore, the constant temperature conveyance container which concerns on one form of this invention is provided with the outer box and the inner box provided with the constant temperature chamber which accommodates a to-be-conveyed object while being covered with the said outer box. A plurality of storage portions in which a plurality of heat storage agents are selectively detachably stored are arranged on the inner surface of the inner box facing the constant temperature chamber.

  According to the present invention, the temperature difference in the constant temperature chamber can be kept within a predetermined temperature range, and the temperature in the constant temperature chamber depends on the temperature required for the quality of the material to be transported or the size of the material to be transported. The position and number of heat storage agents can be freely selected. Thereby, temperature control of a constant temperature greenhouse can be performed with high precision, and the quality of the to-be-conveyed object accommodated in the constant temperature greenhouse can be maintained over a fixed period.

It is a perspective view of the pallet type constant temperature conveyance container which concerns on embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the pallet-type constant temperature conveyance container which concerns on embodiment of this invention. It is a perspective view of the constant temperature holding container which concerns on embodiment of this invention. In embodiment of this invention, it is sectional drawing of the top plate which comprises a housing | casing. In embodiment of this invention, it is sectional drawing of the side plate which comprises a housing | casing. In embodiment of this invention, it is a perspective view which shows the structure inside a constant temperature conveyance container. In embodiment of this invention, it is a perspective view which shows the state in which the cold insulating agent was accommodated in the recess of the housing | casing. In embodiment of this invention, it is a perspective view which shows the pocket arranged in the top plate of the constant temperature holding container. (A) is a perspective view which shows the state which decomposed | disassembled the outer case of the constant temperature conveyance container. (B) is a perspective view which shows the state which folded the outer case of the constant temperature conveyance container. In embodiment of this invention, it is a perspective view which shows the state which decomposed | disassembled the housing | casing of the constant temperature holding container. In embodiment of this invention, it is a perspective view which shows the state which folded the housing | casing of the constant temperature holding container. In embodiment of this invention, it is a figure which shows transition of the temperature of the several temperature measurement point set inside the fixed greenhouse. FIG. 13 is an enlarged view of a portion A in FIG. 12 in the embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 discloses, for example, a pallet-type constant temperature transfer container 1 that is loaded on a truck bed and used for cargo transportation. As shown in FIGS. 1 to 3, the constant temperature transport container 1 includes an outer box 2 as a container case and a constant temperature holding container 3 covered with the outer box 2.

  The outer box 2 is, for example, a rectangular parallelepiped having a width W1 of 1100 mm, a depth D1 of 1100 mm, and a height H1 of 1100 mm, and has a weight of about 40 kg. The outer box 2 includes a flat pallet 5 made of synthetic resin, a front panel 6, a rear panel 7, a pair of side panels 8a and 8b, and a top panel 9.

  The flat pallet 5 has a plurality of insertion holes 10 for lifting up and a rectangular flat upper surface 11. The insertion hole 10 is an element into which, for example, a fork of a forklift or a handlift is inserted, and is opened on four side surfaces of the flat pallet 5. Metal guide rails 12 are fixed to the four edges of the upper surface 11. The guide rail 12 surrounds the upper surface 11 continuously in the circumferential direction.

  The front panel 6, the back panel 7, the side panels 8 a and 8 b, and the top panel 9 are made of, for example, a polypropylene hollow sheet having the same shape as a paper cardboard, a so-called pladan (plastic stage). Further, metal frames 13 are attached to the outer peripheral edges of the panels 6, 7, 8a, 8b, 9 respectively. The frame 13 is provided continuously in the circumferential direction of each panel 6, 7, 8 a, 8 b, 9.

  As shown in FIG. 2, in the front panel 6, the back panel 7, and the side panels 8 a and 8 b, the frame 13 positioned at the lower edge of each is fitted into the guide rail 12 of the flat pallet 5 from above. Accordingly, the front panel 6, the back panel 7, and the side panels 8 a and 8 b are held by the flat pallet 5 so as to stand up from the flat pallet 5 and surround the upper surface 11 of the flat pallet 5.

  Further, the frame 13 positioned at the side edge of the front panel 6 is fitted to the frame 13 positioned at the side edge of the side panels 8a and 8b so as to be slidable in the height direction of the outer box 2. . Similarly, the frame 13 positioned at the side edge of the back panel 7 is fitted to the frame 13 positioned at the side edge of the side panels 8a and 8b so as to be slidable in the height direction of the outer box 2. Yes.

  Therefore, the flat pallet 5, the front panel 6, the back panel 7, and the side panels 8a and 8b are joined together and integrated. Further, the front panel 6 and the back panel 7 are configured to be drawn above the flat pallet 5 between the side panels 8a and 8b.

  The top panel 9 closes the opening defined by the upper edge of the front panel 6, the upper edge of the rear panel 7, and the upper edges of the side panels 8 a and 8 b from above the flat pallet 5. The top panel 9 is detachably held by the side panels 8a and 8b via the lap belt 14.

  On the other hand, the constant temperature holding container 3 has a size that fits inside the outer box 2. The constant temperature holding container 3 has a casing 15 that constitutes its outer shell. The casing 15 can be rephrased as an inner box covered with the outer box 2. As shown in FIG. 3, the casing 15 is a rectangular parallelepiped having a width W2 of 1028 mm, a depth D2 of 1028 mm, and a height H2 of 934 mm, for example, and has a weight of about 15 kg. Therefore, the total weight of the constant temperature transport container 1 including the constant temperature holding container 3 is about 55 kg.

  As shown in FIGS. 2 and 3, the housing 15 includes a bottom plate 16, a front plate 17, a back plate 18, a pair of side plates 19 a and 19 b, and a top plate 20. The bottom plate 16 and the top plate 20 have a common configuration. Specifically, as representatively shown in FIG. 4, the bottom plate 16 and the top plate 20 adopt a three-layer structure having a heat insulating layer 21, a first surface layer 22, and a second surface layer 23, respectively. ing.

  The heat insulating layer 21 is formed of a closed cell structure heat insulating material having the highest level of heat insulating performance, such as phenol foam. The thickness of the heat insulation layer 21 is, for example, 60 mm. The first surface layer 22 and the second surface layer 23 are made of, for example, a hollow sheet made of polypropylene having the same shape as a paper cardboard, that is, a so-called pladan (plastic stage). The thickness of the first surface layer 22 and the second surface layer 23 is, for example, 5 mm.

  According to the present embodiment, the first surface layer 22 is laminated on the surface of the heat insulating layer 21, and the second surface layer 23 is laminated on the back surface of the heat insulating layer 21. Therefore, the first surface layer 22 and the second surface layer 23 cooperate with each other to sandwich the heat insulating layer 21 and protect the heat insulating layer 21. Furthermore, the heat insulating layer 21, the first surface layer 22, and the second surface layer 23 are integrally covered with, for example, an aluminum heat reflecting sheet 24.

  The front plate 17, the back plate 18, and the side plates 19a and 19b have a common configuration. Specifically, as representatively showing the back plate 18 in FIG. 5, the front plate 17, the back plate 18 and the side plates 19a and 19b are respectively a first heat insulating layer 26, a second heat insulating layer 27, and an intermediate layer. A four-layer structure having 28 and a surface layer 29 is employed.

  The 1st heat insulation layer 26 is comprised with the heat insulating material of the closed cell structure which has the highest level heat insulation performance like a phenol foam, for example. The thickness of the first heat insulating layer 26 is, for example, 60 mm.

  The second heat insulating layer 27 is made of a heat insulating material such as polystyrene foam. The thickness of the second heat insulating layer 27 is, for example, 40 mm.

  The intermediate layer 28 and the surface layer 29 are each made of a hollow sheet made of polypropylene having the same shape as that of paper cardboard, for example, a so-called pladan (plastic stage). The thickness of the intermediate layer 28 and the surface layer 29 is, for example, 5 mm.

  According to the present embodiment, the first heat insulating layer 26 and the second heat insulating layer 27 are stacked on each other with the intermediate layer 28 interposed therebetween. The intermediate layer 28 has a function of dispersing a load applied to the first heat insulating layer 26 and the second heat insulating layer 27. The surface layer 29 is laminated on the surface of the first heat insulating layer 26 and has a function of protecting the first heat insulating layer 26. Furthermore, the first heat insulating layer 26, the second heat insulating layer 27, the intermediate layer 28, and the surface layer 29 are integrally covered with, for example, an aluminum heat reflecting sheet 30.

  As shown in FIGS. 2 and 6, the bottom plate 16 of the housing 15 is overlaid on the upper surface 11 of the flat pallet 5. The bottom plate 16 is detachably coupled to the flat pallet 5 via a plurality of hook-and-loop fasteners 31 and is integrated with the flat pallet 5. Further, the bottom plate 16 is surrounded by the guide rails 12 of the flat pallet 5.

  The front plate 17 of the housing 15 is superimposed on the inner surface of the front panel 6 of the outer box 2. The front plate 17 is detachably coupled to the front panel 6 via a plurality of hook-and-loop fasteners 31 and is integrated with the front panel 6.

  The back plate 18 of the housing 15 is overlaid on the inner surface of the back panel 7 of the outer box 2. The back plate 18 is detachably coupled to the back panel 7 via a plurality of hook-and-loop fasteners 31 and is integrated with the back panel 7.

  The side plates 19a and 19b of the housing 15 are superimposed on the inner surfaces of the side panels 8a and 8b of the outer box 2, respectively. The side plates 19a and 19b are detachably coupled to the side panels 8a and 8b via a plurality of hook-and-loop fasteners 31, respectively, and are integrated with the side panels 8a and 8b.

  The top plate 20 of the housing 15 is overlaid on the inner surface of the top panel 9 of the outer box 2. The top plate 20 is detachably coupled to the top panel 9 via a plurality of hook-and-loop fasteners 31 and is integrated with the top panel 9.

  In a state where the lower edge portion of the front panel 6 integrated with the front plate 17 is fitted into the guide rail 12, the front plate 17 stands along the front panel 6 and the lower end surface of the front plate 17 is the bottom plate 16. It is abutted against the front end of the upper surface.

  In a state in which the lower edge of the back panel 7 integrated with the back plate 18 is fitted into the guide rail 12, the back plate 18 rises along the back panel 7 and the lower end surface of the back plate 18 is the bottom plate 16. It is abutted against the rear end of the upper surface.

  In a state where the lower edge portions of the side panels 8a and 8b in which the side plates 19a and 19b are integrated are fitted into the guide rail 12, the side plates 19a and 19b stand along the side panels 8a and 8b, and the side plates 19a and 19b. Lower end surfaces of the bottom plate 16 are butted against both sides of the upper surface of the bottom plate 16.

  Further, the front end surface of one side plate 19 a is abutted against one side portion of the inner surface of the front plate 17, and the rear end surface of the side plate 19 a is abutted against one side portion of the inner surface of the back plate 18. Similarly, the front end surface of the other side plate 19b is abutted against the other side portion of the inner surface of the front plate 17, and the rear end surface of the side plate 19b is abutted against the other side portion of the inner surface of the back plate 18.

  In the state where the top panel 9 in which the top plate 20 is integrated covers the upper edge of the front panel 6, the upper edge of the side panels 8a and 8b, and the opening defined by the upper edge of the back panel 7, The outer peripheral portion of the lower surface of the top plate 20 is abutted against the upper end surface of the front plate 17, the upper end surface of the back plate 18, and the upper end surfaces of the side plates 19a and 19b.

  As a result, the bottom plate 16, the front plate 17, the back plate 18, the side plates 19a and 19b, and the top plate 20 are combined in a rectangular parallelepiped shape as shown in FIG. 32. The constant temperature chamber 32 is a hermetically sealed space for accommodating a material to be transported 33 that needs to be transported at a low temperature, such as pharmaceuticals or fresh food. The transported object 33 is accommodated in the constant temperature chamber 32 in a state of being packed in cardboard, for example.

  As shown in FIGS. 2, 5, and 7, the inner surface of the front plate 17, the inner surface of the back plate 18, and the inner surfaces of the side plates 19 a and 19 b facing the constant temperature chamber 32 are each provided with nine recesses 35. The recess 35 is formed in the second heat insulating layer 27. The recesses 35 are evenly arranged in a grid, for example, in three rows vertically and horizontally so as to cover the entire inner surfaces of the plates 17, 18, 19a, 19b.

  In other words, the nine recesses 35 are partitioned from each other by the lattice-shaped partition walls 36 and open to the constant temperature chamber 32.

  In the present embodiment, the heat reflecting sheet 30 is laid so as to enter the recess 35, and continuously covers the inner surface of the recess 35. At the same time, a foam sheet 37 made of polypropylene, for example, is disposed at the bottom of the recess 35.

  As shown in FIG. 8, pockets 38 are provided at nine locations on the inner surface of the top plate 20 facing the constant temperature chamber 32. The pocket 38 is formed in a square bag shape using, for example, a resin sheet having air permeability. The pockets 38 are evenly arranged in a grid pattern in three rows vertically and horizontally so as to cover the entire inner surface of the top plate 20, and are fixed to the top plate 20 by means of adhesion or sewing.

  The recess 35 and the pocket 38 are an example of an accommodating portion that accommodates the cold-insulating agent 40 as a heat storage material in a removable manner. The cold insulator 40 is an element that keeps the constant temperature chamber 32 in a low temperature state, and includes a flat plastic container 41 filled with a refrigerant.

  Each of the recesses 35 and each of the pockets 38 has such a size that the container 41 of the cooling agent 40 can be fitted in the respective recesses 35 and the pockets 38. For this reason, in the location of the front plate 17, the back plate 18, and the side plates 19 a and 19 b of the housing 15, the cold insulation agent 40 is embedded in the recess 35 so as not to overhang the constant temperature chamber 32.

  As shown in FIGS. 2, 6 and 8, the open end of the recess 35 leading to the constant temperature chamber 32 is individually covered with a square resin sheet 42 having air permeability. The lower side of the resin sheet 42 is fixed to a partition wall 36 that partitions the recess 35 by means such as adhesion or sewing.

  Further, strip-shaped borders 43 are sewn on the four sides of the resin sheet 42 in the vertical and horizontal directions. The rim material 43 is made of, for example, tough tarpaulin, and surrounds and reinforces the resin sheet 42.

  As best shown in FIG. 7, the left and right sides and the upper side of the resin sheet 42 are detachably coupled to the partition wall 36 using, for example, a hook-and-loop fastener 44. The hook-and-loop fastener 44 includes a first fastener portion 44a raised in a loop shape and raised, and a second fastener portion 44b raised in a hook shape.

  In the present embodiment, the first fastener portion 44 a is sewn from the side to the upper side of the resin sheet 42, and the second fastener portion 44 b is bonded to the partition wall 36. For this reason, when the side and upper sides of the resin sheet 42 are pressed against the partition wall 36, the first fastener portion 44a and the second fastener portion 44b of the hook-and-loop fastener 44 are engaged with each other and attached. As a result, the open end of the recess 35 is closed by the resin sheet 42, and the cooling agent 40 is held in the recess 35 by the resin sheet 42.

  On the other hand, when the resin sheet 42 is pulled away from the partition wall 36, the first fastener portion 44a is peeled off from the second fastener portion 44b, and the resin sheet 42 hangs with the lower side as a fulcrum as shown in FIG. As a result, the recess 35 is opened, and it is possible to take out the cooling agent 40 from the recess 35 or to store the cooling agent 40 in the recess 35.

  According to this embodiment, the outer box 2 and the casing 15 of the constant temperature transport container 1 can be individually folded. 9A shows a state in which the outer box 2 is disassembled, and FIG. 9B shows a state in which the outer box 2 is folded.

  As shown in FIG. 9A, the front panel 6, the back panel 7, and the side panels 8 a and 8 b can be separated from each other by being pulled out from the guide rail 12 of the flat pallet 5. The top panel 9 can be separated from the front panel 6, the back panel 7, and the side panels 8 a and 8 b by releasing the connection by the lap belt 14.

  In the present embodiment, side panels 8 a and 8 b, a front panel 6, a back panel 7, and a top panel 9 are superimposed on the top surface 11 of the flat pallet 5 in order from the bottom. In this state, the flat pallet 5 and the top panel 9 are joined together using a lap belt 14.

  As a result, as shown in FIG. 9B, the front panel 6, the rear panel 7, and the side panels 8a and 8b are sandwiched between the flat pallet 5 and the top panel 9, and all of the outer box 2 is formed. The elements are bundled in a flat form convenient for storage.

  As shown in FIG. 10, the bottom plate 16, the front plate 17, the back plate 18, the pair of side plates 19 a and 19 b, and the top plate 20 that constitute the casing 15 are a flat pallet 5 and a front panel 6 that constitute the outer box 2, respectively. By separating from the rear panel 7, the pair of side panels 8a and 8b and the top panel 9, they can be separated from each other.

  In the present embodiment, a back plate 18, a front plate 17, one side plate 19 a, the other side plate 19 b and a top plate 20 are superimposed on the bottom plate 16 in order from the bottom. As a result, as shown in FIG. 11, one side plate 19a, the other side plate 19b, the front plate 17 and the back plate 18 are sandwiched between the bottom plate 16 and the top plate 20, and all of the casing 15 is formed. Elements are stacked in a flat form for convenient storage.

  According to the embodiment of the present invention, the plurality of recesses 35 in which a plurality of cold insulation agents 40 are embedded in the inner surface of the front plate 17 facing the constant temperature chamber 32, the inner surface of the back plate 18 and the inner surfaces of the side plates 19a and 19b, respectively. Are arranged all over. Furthermore, on the inner surface of the top plate 20 facing the constant temperature chamber 32, a plurality of pockets 38 in which a plurality of the cooling agents 40 are accommodated are arranged in a lattice pattern.

  For this reason, cold air can be uniformly discharged from the front surface, back surface, side surface, and top surface of the constant temperature chamber 32 toward the constant temperature chamber 32, and the temperature difference of each part in the constant temperature chamber 32 is set within a predetermined temperature range, for example, 2 ° C. Can fit within. In other words, variations in the temperature distribution of the constant temperature chamber 32 can be minimized.

  Therefore, according to the constant temperature transport container 1 of the embodiment, the position of the cold insulating agent 40 with respect to the constant temperature chamber 32 and the transported object 33 is determined, and the temperature management of the constant temperature chamber 32 can be performed with high accuracy. Therefore, the quality of the conveyed product 33 accommodated in the constant temperature chamber 32 can be favorably maintained over a certain period.

  Furthermore, it is possible to freely select the recess 35 and the pocket 38 where the cooling agent 40 should be installed according to the temperature of the constant temperature chamber 32 necessary for keeping the conveyed object 33 cold or the size of the conveyed object 33. it can. In addition, the temperature grade of the cryogen 40 can be selected according to the cool temperature required by the article 33 to be conveyed, or a plurality of temperature grade cryogens 40 having different melting temperatures can be used in combination. Thereby, it becomes possible to freely set the temperature distribution in the constant temperature chamber 32 so as to correspond to the cold insulation temperature required by the conveyed object 33, and the usability is improved.

  In addition, according to the present embodiment, since the inner surface of the recess 35 in which the cooling agent 40 is accommodated is covered with the heat reflecting sheet 30 made of aluminum, the latent heat of the cooling agent 40 is reflected toward the constant temperature chamber 32. Can do.

  At the same time, the recess 35 is formed in the second heat insulation layer 27 made of polystyrene foam, and a foam sheet 37 is disposed at the end of the recess 35. For this reason, the heat insulation effect of the 2nd heat insulation layer 27 and the foam sheet 37 acts synergistically, and the latent heat of the cold insulating agent 40 can be efficiently moved toward the constant temperature room 32 from the recess 35.

  In addition, since the resin sheet 42 that holds the cooling agent 40 in the recess 35 and the pocket 38 that stores the cooling agent 40 are both air permeable, the latent heat of the cooling agent 40 released to the recess 35 and the pocket 38 is reduced. It can be efficiently moved from the recess 35 and the pocket 38 toward the constant temperature chamber 32.

  Therefore, it is possible to suppress the temperature rise in the constant temperature chamber 32 and maintain the inside of the constant temperature chamber 32 in a predetermined low temperature state for a certain period.

  The inventor conducted a test under the following conditions in order to evaluate the performance of the constant temperature transport container 1 according to the embodiment.

-The temperature condition of the outside air was set to 35 ° C.

-As for the installation conditions of the cryogen 40, nine cryogens with a temperature grade of -5 [deg.] C. are installed on the top surface of the housing 15 and 8 on the front, back and left and right sides of the housing 15, respectively. did. The cryogen was frozen in advance at −15 ° C. for 24 hours. Further, on the front surface, the back surface, and the left and right side surfaces of the housing 15, the cold insulation agent 40 is located at the center of the lowermost step among the nine recesses 35 arranged in a lattice form in three rows in the vertical and horizontal directions. Installed in all the recesses 35 except for one recess 35.

-As the conveyed object 33, 2 liters of water filled in one container was prepared. Water was placed in the center of the bottom of the constant temperature chamber 32 and refrigerated at 5 ° C. for 24 hours in advance.

As temperature detection conditions, the central part in the container filled with water, the upper right part of the front surface of the constant temperature chamber 32, the lower left part of the rear surface of the constant temperature room 32, and the central part of the constant temperature room 32 (directly above the container) Temperature sensors using thermocouples were installed at four locations.

  When the temperature of the water and the temperature at the three locations of the constant temperature chamber 32 were measured by the temperature sensor, the measurement results as shown in FIGS. 12 and 13 were obtained.

  As can be seen from FIG. 12, even when 26 hours have passed since the start of the test, the water contained in the constant temperature chamber 32 maintains a temperature of 2 to 5 ° C. Furthermore, it can be seen that the temperatures at the three locations of the constant temperature chamber 32 are almost the same, and the temperature distribution in the constant temperature chamber 32 is equalized.

  As a result, from the frozen state of the cooling agent 40 after 26 hours from the start of the test, the transition of water and the temperature in the constant temperature chamber 32, the constant temperature transport container 1 having the structure of the above embodiment accommodates the constant temperature chamber 32. It can be presumed that the water thus obtained can maintain the state of 2-8 ° C. for 48 hours.

  Therefore, according to the constant temperature transport container 1 according to the embodiment, it has become clear that the temperature distribution of the constant temperature chamber 32 can be equalized and the temperature required for the transported object 33 can be maintained over a certain period.

  The present invention is not limited to the above-described embodiment, and various omissions, replacements, and changes can be made without departing from the spirit of the invention.

  For example, you may make it install a cold insulating agent also in the bottom face of a fixed greenhouse. In this case, it is desirable to arrange a plurality of recesses for storing the cooling agent on the bottom surface of the constant temperature room in a lattice pattern and to continuously cover the open ends of the recesses with, for example, a flat foam sheet having air permeability. By providing the foam sheet, the bottom surface of the constant temperature chamber can be flattened, and load collapse can be prevented in advance.

  In addition, the heat storage agent is not limited to the cold insulation agent that keeps the constant temperature room low, and for example, a heat insulation agent that keeps the constant temperature room at normal temperature may be used. By using a heat insulating agent, it is possible to perform temperature management of a specimen that should not be frozen, for example, human cells or blood.

  Furthermore, you may accommodate a cold insulating agent and a heat insulating agent in an appropriate combination, and to accommodate in the recessed part and pocket of a constant temperature greenhouse.

  The constant temperature transport container according to the present invention is not limited to a large one that is lifted up by a forklift or used for freight transportation, but may be a small one that can be carried by a human hand.

  At the same time, constant temperature transport containers are not specified as those that are loaded on trucks and transported. For example, they are also used as marine containers that are transported on container ships, rail containers that use railways, or air cargo containers that use aircraft. Is possible.

  DESCRIPTION OF SYMBOLS 1 ... Constant temperature conveyance container, 2 ... Outer box, 3 ... Constant temperature holding container, 15 ... Housing | casing, 32 ... Constant temperature chamber, 33 ... Conveyed object, 35, 38 ... Accommodating part (recess, pocket), 40 ... Thermal storage agent .

Claims (6)

A case that is made of a heat insulating material and that defines a constant temperature room in which a transported object is stored;
A plurality of storage portions that are entirely arranged on the inner surface of the casing facing the constant temperature chamber, and a plurality of heat storage agents are selectively removably stored,
A constant temperature holding container.   The constant temperature holding container according to claim 1, wherein the housing portion is evenly arranged on the inner surface of the housing.   The constant temperature holding container according to claim 1 or 2, wherein the housing portion is defined by a recess provided in the inner surface of the constant temperature chamber, and the heat storage agent can be selectively removed from the recess. A constant temperature holding container that is embedded and covered with an air permeable sheet so that the open end of the recess leading to the constant temperature chamber can be opened and closed.   The constant temperature holding container according to claim 3, wherein the breathable sheet is configured to hold the heat storage agent in the recess.   The constant temperature holding container according to claim 1 or 2, wherein the housing portion is defined by a breathable pocket attached to the inner surface of the constant temperature chamber, and the heat storage agent can be taken out into the pocket. Constant temperature holding container housed in An outer box,
The constant temperature holding container according to any one of claims 1 to 5, which is covered with the outer box,
A constant temperature transport container.

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