Home delivery parcel cold insulation box

The home delivery cold box improves cooling capacity and reduces energy loss by using a non-contact insulation configuration and a cold air generator to maintain the refrigerated state of delivery items.

JP2025074191AInactive Publication Date: 2025-05-13ALIVE TECH CO LTD
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Patent Information

Application Number
JP2025031352
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-05-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing home delivery cooling boxes suffer from low cooling capacity and high energy loss due to direct contact between insulation materials and outside air, leading to easy escape of cold air.

Method used

A delivery cold box design featuring a housing space forming body made of heat insulation material, with a non-contact configuration between the insulation body and the outer surface plate, and the inclusion of a cold air generator to introduce cooled air into the storage space.

Benefits of technology

The non-contact configuration enhances the cooling capacity within the storage space while reducing energy loss for cooling, effectively maintaining the refrigerated or frozen state of home delivery items.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a home delivery parcel cold insulation box capable of suppressing energy loss for cold insulation by improving cold insulation capacity inside of a housing space for housing a home delivery parcel.SOLUTION: A home delivery parcel cold insulation box 100 is constituted by disposing a housing space formation body 130 on a cool air generator 150 generating cool air. The housing space formation body 130 is composed of a heat insulation material and formed into a box shape opened at its front part. The housing space formation body 130 is covered by a first housing 101 at a right side face 135 and a top face 137 by a right side face spacer 143 and a top face spacer 144, a left side face 134 is covered by a second housing 114 through a left side face spacer 117, and a back face 136 is covered by a back face outer surface plate 120 through a back face spacer 124. Each spacer is composed of a heat insulation material, and the housing space formation body 130 is kept in a non-contact state to a right side face outer surface plate 102, a left side face outer surface plate 115, an upper housing portion 105, and the back face outer surface plate 120.SELECTED DRAWING: Figure 8
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Description

[Technical field]

[0001] The present invention relates to a parcel cooler box for temporarily storing parcels in a refrigerated or frozen state. [Background technology]

[0002] Conventionally, there are parcel cooling boxes that temporarily store parcels, which are packages delivered to detached houses and apartment buildings, in a refrigerated or frozen state. For example, the following Patent Document 1 discloses a parcel storage box device as a parcel cooling box in which the wall of the box part that stores parcels is formed into a hollow structure and filled with a heat insulating material such as polystyrene foam or urethane foam. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-329382

[0004] However, in the parcel cooler box described in Patent Document 1 above, the insulating material that makes up the box section is in contact with the outside air via the board material, which results in problems such as low cooling capacity and large energy loss due to cooling, as the cold air inside the box section easily escapes. Summary of the Invention

[0005] The present invention has been made to address the above-mentioned problems, and its object is to provide a parcel cooling box that can improve the cooling capacity within the storage space that holds parcels, thereby reducing energy loss required for cooling.

[0006] In order to achieve the above-mentioned object, the feature of the present invention is that it is a parcel cooler box to be installed outdoors, comprising a storage space forming body having a base, left side surface, right side surface, back surface, top surface and an opening edge portion forming an opening of the storage space, all of which are made of insulating material, a door formed to a size that covers the opening of the storage space and opens and closes the storage space, an outer surface panel provided on the outside of the storage space forming body and forming the outer surface that comes into contact with the outside air, a front surface arranged opposite the opening edge portion of the storage space forming body, and a cold air generator that generates cold air to be introduced into the storage space, and the storage space forming body is provided in a non-contact manner without direct contact with the outer surface panel and the front surface.

[0007] According to the features of the present invention configured in this manner, the delivery item cooler box has a storage space forming body in which the storage space for storing delivery items is formed, and is arranged in a non-direct contact with the outer surface panel that constitutes the outer surface that comes into contact with the outside air. This makes it difficult for cold air within the storage space forming body to escape to the outside of the delivery item cooler box, thereby improving the cooling capacity within the storage space and reducing energy loss due to cooling.

[0008] Another feature of the present invention is that the parcel cooler box is provided with an elastic spacer between the front surface and the opening edge of the storage space forming body.

[0009] Another feature of the present invention is that the parcel cooler box is provided with an elastic spacer between the back surface of the storage space forming body and the outer surface plate.

[0010] Another feature of the present invention is that in the parcel cooler box, the front surface is formed integrally with the outer surface panel.

[0011] Another feature of the present invention is that the parcel cooler box is provided with an upper storage section for storing mail between the top surface and the outer surface panel of the storage space forming body.

[0012] Another feature of the present invention is that the parcel cooler box is provided with a tubular air outlet that penetrates the mounting base and opens into the storage space, for spraying out the cold air generated by the cold air generator, and a tubular air intake that penetrates the mounting base and opens into the storage space, for directing air within the storage space to the cold air generator.

[0013] Another feature of the present invention is that, in the parcel cooler box, a cold air generating space forming body is provided below the storage space forming body, which has four walls, a bottom and a top surface, each of which is made of insulating material, and which contains the part of the cold air generator that generates cold air, and the top surface of the cold air generating space forming body is formed separately from the placing portion and is positioned adjacent to and below the placing portion.

[0014] The present invention also includes a storage space forming body in which a storage space for storing parcels is formed, an outer surface plate provided outside the storage space forming body and constituting an outer surface in contact with outside air, and a cold air generator provided outside the storage space for sucking in air in the storage space, generating cooled cold air, and supplying it to the storage space, and the storage space forming body can be provided in a non-contact state, being made of a heat insulating material, and not in direct contact with the outer surface plate. According to this, the delivery cooler box is provided in a non-contact state, in which the storage space forming body in which a storage space for storing parcels is formed is not in direct contact with the outer surface plate constituting the outer surface in contact with outside air, so that the cold air in the storage space forming body is less likely to escape to the outside of the delivery cooler box, improving the cooling capacity in the storage space and reducing energy loss for cooling.

[0015] In this case, the delivery cooler box includes a spacer made of a heat insulating material provided between the storage space forming body and the outer surface plate, and the storage space forming body has a surface facing the spacer formed parallel to the spacer, and the spacer is formed in a plate shape with an area smaller than the area of ​​the surface facing the spacer in the storage space forming body, and the plate surface is in close contact with the storage space forming body, so that an air layer can be formed between the storage space forming body and the outer surface plate in at least a part of the periphery of the spacer. According to this, since an air layer is formed between the storage space forming body and the outer surface plate, the delivery cooler box can effectively improve the cooling capacity in the storage space without increasing the weight of the delivery cooler box, and energy loss for cooling can be reduced. In addition, since the delivery cooler box includes a spacer made of a heat insulating material between the storage space forming body and the outer surface plate, the storage space forming body can be stably fixed while effectively improving the cooling capacity in the storage space and reducing energy loss for cooling. In this case, the heat insulating material is preferably a plate-shaped or fibrous material having a thermal conductivity of 0.2 or less, and more preferably 0.1 or less. In addition, in the parcel cooler box, the spacer is formed with an area smaller than the area of ​​the surface facing the spacer on the storage space forming body, and an air layer is formed around at least a portion of the spacer, so that the storage space forming body can be stably fixed while preventing the weight of the parcel cooler box from increasing.

[0016] In this case, in the parcel cooler box, the spacer may be made of an elastic elastomer material. According to this, since the spacer of the parcel cooler box is made of an elastic elastomer material, the storage space forming body is elastically supported, and damage to the storage space forming body due to a collision of the parcel can be suppressed. Furthermore, in the parcel cooler box according to the present invention, since the spacer is made of an elastic elastomer material, the assembly work of the outer surface panel to the storage space forming body can be facilitated even if the molding accuracy of the storage space forming body and the outer surface panel is reduced.

[0017] In these cases, the outer surface plate of the home delivery cooler box can be provided with a pressing body that protrudes from the inner surface and presses the spacer against the storage space forming body. According to this, the home delivery cooler box is provided with a pressing body that protrudes from the inner surface of the outer surface plate and presses the spacer against the storage space forming body, so that the storage space forming body can be stably supported by pressing the spacer against the storage space forming body. Furthermore, the home delivery cooler box according to the present invention can further improve the cooling capacity in the storage space and reduce energy loss for cooling by interposing the spacer and the pressing body between the outer surface plate and the storage space forming body.

[0018] In these cases, the home delivery cooler box may be provided with an air outlet that opens into the storage space to blow out the cold air generated by the cold air generator, and an air intake that opens into the storage space to guide the air in the storage space to the cold air generator. In these cases, the home delivery cooler box may be provided with a cold air generating space forming body that hermetically houses the part of the cold air generator that generates the cold air in the storage space.

[0019] In these cases, the storage space forming body in the home delivery cooler box may be supported on a cold air generator. In this way, since the storage space forming body in the home delivery cooler box is supported on the cold air generator, the storage space forming body can be stably supported via the cold air generator while efficiently supplying cold air into the storage space forming body. [Brief description of the drawings]

[0020] [Figure 1] 1 is an oblique view showing the outline of the external configuration of a home delivery cooler box according to one embodiment of the present invention, from the front. [Diagram 2] 2 is a perspective view showing the outline of the external configuration of the home delivery cooler box shown in FIG. 1, viewed from the rear. FIG. [Diagram 3] 2 is a block diagram of a control system for controlling the operation of the parcel cooler box shown in FIG. 1. [Figure 4]2 is a perspective view showing the parcel cooler box shown in FIG. 1 with the opening and closing door and the bottom cover omitted. FIG. [Diagram 5] 5 is a perspective view showing the home delivery cooler box shown in FIG. 4 with the top cover, base, and second housing omitted. [Figure 6] 2 is a perspective view showing the outline of the external configuration of a first housing in the home delivery cooler box shown in FIG. 1, viewed from the front. [Figure 7] 2 is a partially enlarged cross-sectional view of the parcel cooler box cut parallel to the front-rear direction to illustrate the outline of the main parts of the internal structure of the parcel cooler box shown in FIG. 1. FIG. [Figure 8] 2 is an exploded perspective view showing the main components of the home delivery cooler box shown in FIG. 1. FIG. [Figure 9] FIG. 5 is an exploded perspective view showing the external configuration and assembled state of the storage space forming body and the cold air generator in the home delivery cooler box shown in FIG. 4. [Figure 10] 2 is a partially enlarged cross-sectional view of the parcel cooler box cut parallel to the left and right direction to illustrate an outline of the main parts of the internal structure of the parcel cooler box shown in FIG. 1. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment of the home delivery cooler box according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an outline of the external configuration of the home delivery cooler box 100 according to the present invention from the front. FIG. 2 is a perspective view showing an outline of the external configuration of the home delivery cooler box 100 shown in FIG. 1 from the rear. FIG. 3 is a block diagram of a control system that controls the operation of the home delivery cooler box 100 shown in FIG. 1. FIG. 4 is a perspective view showing the home delivery cooler box 100 shown in FIG. 1 with the opening / closing door 111 and the lower cover 112 omitted. FIG. 5 is a perspective view showing the home delivery cooler box 100 shown in FIG. 4 with the upper cover 110, the base 113, and the second housing 114 omitted. This home delivery cooler box 100 is a device that is installed at the entrance of a detached house and temporarily stores home delivery WK in a refrigerated or frozen state.

[0022] (Configuration of the parcel cooler box 100) The delivery cooler box 100 includes a first housing 101. The first housing 101 is a component that supports the devices and components that constitute the delivery cooler box 100 and constitutes a part of the outer surface (right side surface) of the delivery cooler box 100, and is made of a metal (e.g., steel) plate material.

[0023] Specifically, as shown in Fig. 6, first housing 101 is configured to include right side outer surface panel 102, front surface 103, upper storage section 105, and bottom surface 107. Right side outer surface panel 102 is a part that constitutes the right side surface of the outer surface of home delivery cooler box 100, and is configured as a rectangular plate-like body extending in the vertical direction. A louver-type ventilation opening 102a is formed in the lower part of right side outer surface panel 102 to allow air to flow in and out of cool air generator 150 provided inside home delivery cooler box 100.

[0024] The front surface 103 is a portion formed on the front side of the parcel cooler box 100, and is composed of a rectangular plate-like body extending in the vertical direction. In this case, the front surface 103 has four openings 103a, 103b, 103c, and 103d that open in a square shape when viewed from the front, arranged in the vertical direction. The openings 103a and 103b are openings on the front side of the upper storage section 105, and are formed adjacent to each other in the vertical direction. The opening 103c is a portion that opens to the storage space forming body 130. The opening 103d is a portion that opens to the cold air generator 150.

[0025] Moreover, the front surface 103 is provided with mounting plates 104a, 104b, 104c, and 104d at a part of each periphery of the openings 103a to 103d. The mounting plate 104a is a metal (for example, steel) part to which the upper cover 110 is attached, as shown in FIG. 7, and is a plate-shaped body formed with an L-shaped cross section that extends horizontally. The mounting plate 104b is a metal part to which the opening / closing door 111 is attached, and is a plate-shaped body formed with an L-shaped cross section that extends vertically. The mounting plate 104c is a metal part to which the lower cover 112 is attached, as shown in FIG. 7, and is a plate-shaped body formed with an L-shaped cross section that extends horizontally. The mounting plate 104d is a metal part for attaching the first housing 101 to the base 113, and is a plate-shaped body formed with a U-shaped cross section that extends horizontally.

[0026] Upper storage section 105 is a section that supports control device 170 and operation panel 171 while forming mailbox 106, and is formed in a cylindrical shape that penetrates in the front-rear direction of home delivery cooler box 100. In this case, mounting plate 105a for attaching rear outer surface panel 120 is provided on the end face on the rear side of upper storage section 105, which is opposite front surface 103. Mailbox 106 is a section for temporarily storing mail, and the space on the upper right side of upper storage section 105 when viewed from the front is partitioned into a cylindrical shape that penetrates in the front-rear direction of home delivery cooler box 100.

[0027] The bottom surface 107 is a portion on which the cold air generator 150 is placed, and is configured by forming a metal (e.g., steel) plate material into a square shape in a plan view. The bottom surface 107 is provided with an attachment plate (not shown) similar to the attachment plate 104d on the end surface on the rear side opposite to the front surface 103. The right side outer surface plate 102, the front surface 103, the upper storage section 105, and the bottom surface 107 are integrally formed by sheet metal processing. That is, the first housing 101 is formed in a frame shape with the portions below the upper storage sections 105 on the rear and left side open. The first housing 101 is attached on the base 113 with the second housing 114 attached to the left side.

[0028] The upper cover 110 is a part that closes the opening 103a and constitutes a part of the front surface of the outer surface of the parcel cooler box 100, and is formed by forming a metal plate material into a rectangular shape extending in the left-right direction when viewed from the front. The upper cover 110 is provided with an opening 110a that can be opened and closed freely and serves as a mail receiving opening in a portion facing the mailbox 106, and an interphone 110b is provided to the left of the opening 110a in the figure. The interphone 110b is an electric device for communication between people in the house (residents) and visitors, and is electrically connected to a parent unit (not shown) provided in the house. In addition, a nameplate 110c is provided as a nameplate above the opening 110a in the upper cover 110.

[0029] A lock mechanism 110d is provided inside the upper cover 110. The lock mechanism 110d is a device that inserts a pin into the closed opening / closing door 111 to fix it so that it cannot be opened, and is composed of a solenoid whose operation is controlled by the control device 170. The upper cover 110 is detachable from the first housing 101 but is attached in a fixed state so as not to move.

[0030] The opening / closing door 111 is a component that opens and closes the storage space 131 formed inside the storage space forming body 130, and constitutes another part of the front surface of the outer surface of the home delivery cooler box 100, and is configured by forming a metal (e.g., steel) plate material into a rectangular shape when viewed from the front. In this case, the opening / closing door 111 is formed to a size that covers the opening of the storage space forming body 130, including the operation panel 171 provided above the storage space forming body 130. In other words, the opening / closing door 111 is formed to a size that covers the openings 103b and 103c integrally.

[0031] A heat insulating material (not shown) made of a foamed resin material (urethane foam, polystyrene foam, etc.) made by foaming a resin material with a foaming agent is embedded inside the opening / closing door 111 in a portion facing the storage space forming body 130. Also, a handle 111a that a user grasps to open and close the opening / closing door 111 is provided on the outer surface of the opening / closing door 111. The opening / closing door 111 is movably attached to a mounting plate 104b and functions as a single-wing door.

[0032] Lower cover 112 is a component that closes opening 103d and constitutes yet another part of the front surface of the outer surface of parcel cooler box 100, and is configured by forming a metal plate into a rectangular shape when viewed from the front. Lower cover 112 is detachable from first housing 101 but is attached in a fixed state that does not move.

[0033] 8, base 113 is a component that constitutes the bottom of delivery cooler box 100 and is fixed to the ground on which delivery cooler box 100 is placed, and is configured by forming a metal (e.g., steel) plate material into a rectangular frame shape in a plan view. First housing 101 and second housing 114 are attached to base 113 with each of them placed thereon.

[0034] Second housing 114 is a component that is attached to first housing 101, base 113, and rear outer surface panel 120, respectively, and constitutes another part (left side and top) of the outer surface of parcel cooler box 100, and is made of a metal (e.g., steel) plate material. More specifically, second housing 114 is configured to include left side outer surface panel 115 and top outer surface panel 118, as shown in FIG.

[0035] The left side outer surface panel 115 is a part that constitutes the left outer surface of the parcel cooler box 100, and is formed by bending both side edges of a rectangular plate material extending in the vertical direction inwardly into a U-shape. A louver-type ventilation opening 115a is formed in the lower part of the left side outer surface panel 115 to allow air to flow in and out of the cool air generator 150 provided inside the parcel cooler box 100.

[0036] Further, a pressing body 116 is provided on the inner surface of the left side outer surface plate 115 in a state of protruding from the inner surface. The pressing body 116 is a component for pressing the left side spacer 117 against the storage space forming body 130, and is formed by bending both side edges of a metal (e.g., steel) plate material inwardly into a U-shape so as to protrude toward the storage space forming body 130. The pressing body 116 is attached to the left side outer surface plate 115 at a position close to the opening / closing door 111 side.

[0037] The left side surface spacer 117 is a component for supporting the storage space forming body 130 together with a right side surface spacer 143 described later while preventing the left side surface 134 of the storage space forming body 130 from contacting the left side surface outer surface plate 115 of the second housing 114. This left side surface spacer 117 is made of a rigid body having excellent heat insulating rigidity or an elastic body having elasticity such as an elastomer material.

[0038] Here, the material with excellent heat insulation preferably has a thermal conductivity of 0.2 or less, more preferably 0.1 or less. The rigid body is made of a plate-shaped thermosetting resin material (e.g., phenolic resin, epoxy resin, unsaturated polyester resin, etc.) or a thermoplastic resin material (e.g., polypropylene, polystyrene, polyvinyl chloride, polycarbonate). The elastomer material is made of a thermosetting elastomer material (e.g., vulcanized rubber, urethane rubber, silicone rubber, fluororubber, etc.) or a thermoplastic elastomer material (e.g., styrene-based, olefin-based, PVC-based, urethane-based, or amide-based resin, etc.) alone or with the addition of a foaming agent. In this embodiment, the left side spacer 117 is made of a plate-shaped polystyrene foam material.

[0039] The left side surface spacer 117 is configured as a rectangular plate-like body smaller than the left side surface 134, which is the side surface on the left side in the figure, of the storage space forming body 130. In this embodiment, the left side surface spacer 117 is formed in a rectangular shape with a length equal to the vertical length of the left side surface 134 of the storage space forming body 130 and shorter than each length in the depth direction. In this case, the thickness of the left side surface spacer 117 is not particularly limited, but is preferably formed to a thickness of 5 mm or more and 20 mm or less.

[0040] 7, the left side spacer 117 is attached to the pressing body 116 so as to be located at a position close to the edge of the left side surface 134 on the opening / closing door 111 side. As a result, a left side air layer 117a is formed as a gap consisting of a cavity along the right edge (side) of the left side spacer 117 between the left side surface 134 of the storage space forming body 130 and the left side outer surface plate 115 of the second housing 114. The left side spacer 117 is shown by a dashed line (hidden line) in FIG. 7 and by a two-dot chain line in FIG. 9. The left side air layer 117a is formed in the area indicated by the dashed line (hidden line) in FIG. 7 and is formed in the area indicated by the two-dot chain line (imaginary line) in FIG. 9.

[0041] The upper outer surface plate 118 is a part that constitutes the upper outer surface of the parcel cooler box 100, and is formed by bending three edges of a rectangular plate material inwardly in a U-shape when viewed from above. The upper outer surface plate 118 is provided with lighting 118a at the eaves portion that is U-shaped when viewed from above and exposed to the outside on the underside facing downward in the figure. The lighting 118a is a lighting fixture for illuminating the part of the parcel cooler box 100 below the upper outer surface plate 118, and is formed of multiple LEDs whose operation is controlled by the control device 170.

[0042] This second housing 114 is attached to the edge on the left side of the first housing 101 with screws (not shown) with a lower end of the left side outer surface plate 115 inserted into the upper surface of the base 113, and the upper side outer surface plate 118 is attached to the upper surface of the first housing 101 with screws (not shown). As a result, the accommodation space forming body 130 is supported in a state where it is sandwiched between the left side outer surface plate 115 of the second housing 114 and the right side outer surface plate 102 of the first housing 101 via the left side spacer 117 and the right side spacer 143 described later.

[0043] 2, 7 and 8, rear outer surface panel 120 is a component that is attached to first housing 101, base 113 and second housing 114, respectively, and constitutes another part (the rear surface) of the outer surface of parcel cooler box 100, and is made of a metal (e.g., steel) plate material. At the upper part of this rear outer surface panel 120, opening 120a that communicates with the inside of upper storage section 105 is formed in a rectangular shape when viewed from behind, and opening 120a is closed by closing plate 121.

[0044] The closing plate 121 is a plate-like part made of metal (for example, steel) for closing the entire opening 120a, and is attached to the rear outer surface panel 120 with screws (not shown). This closing plate 121 is provided with a plate-like opening 122 that can be opened and closed freely and serves as a mail removal opening at a portion facing the mailbox 106. In addition, a pressing body 123 is provided on the inner surface of the rear outer surface panel 120 in a state of protruding from the inner surface.

[0045] The pressing body 123, like the pressing body 116, is a part for pressing the rear spacer 124 against the rear face 136 of the accommodation space forming body 130, and is formed by bending both side edges of a metal (e.g., steel) plate material inwardly into a U-shape so as to protrude toward the accommodation space forming body 130. This pressing body 123 is attached to the center in the left-right direction of the rear outer surface plate 120. Then, this rear outer surface plate 120 is attached to the first housing 101 and the second housing 114 with screws (not shown) with the lower end inserted into the upper surface of the base 113.

[0046] The rear spacer 124 is a component for supporting the storage space forming body 130 together with a front spacer 141 (described later) while preventing the rear surface 136 of the storage space forming body 130 from contacting the rear outer surface plate 120. This rear spacer 124, like the left side surface spacer 117, is made of a plate-shaped polystyrene foam material.

[0047] The rear spacer 124 is composed of two rectangular plate-like bodies smaller than the rear surface 136 of the accommodation space forming body 130. In this embodiment, the two plate-like bodies constituting the rear spacer 124 are formed in a rectangular shape with a length equal to the length in the left-right direction of the rear surface 136 of the accommodation space forming body 130 and shorter than the length in the up-down direction. In this case, the thickness of the rear spacer 124 is not particularly limited, but is preferably formed to a thickness of 5 mm or more and 20 mm or less.

[0048] These rear spacers 124 are attached to the pressing body 123 so as to be located at the center in the left-right direction of the rear surface 136 of the storage space forming body 130. As a result, a rear air layer 124a is formed along the periphery of the rear spacers 124 between the rear surface 136 of the storage space forming body 130 and the rear outer surface plate 120, as shown in FIG.

[0049] The storage space forming body 130 is a component for forming the storage space 131 for storing the parcel WK, and is formed in a rectangular box shape extending in the vertical direction in the figure with the front side of the parcel cooler box 100 open. More specifically, as shown in FIG. 9, the storage space forming body 130 is configured to include a mounting base 132, a left side surface 134, a right side surface 135, a back surface 136, and a top surface 137. This storage space forming body 130 is configured by sandwiching a heat insulating material made of a foamed resin material (such as a urethane foam material or a polystyrene foam material) made by foaming a resin material with a foaming agent between metal plates (for example, aluminum plates) or resin plates from both sides. Here, it is preferable that the heat insulating material has a thermal conductivity of 0.2 or less, and more preferably, a material having a thermal conductivity of 0.1 or less is used.

[0050] As shown in Fig. 7 and Fig. 10, the mounting table 132 is a part that forms the bottom in the storage space 131 and supports the parcel WK to be stored in the storage space 131, and is configured as a flat plate with a flat upper surface. As shown in Fig. 10, the mounting table 132 has pipe through holes 133a and 133b formed on the left and right edges. The pipe through holes 133a and 133b are parts that allow the blower pipe 156 and the intake pipe 157 to pass through and position them in the storage space 131, and are formed in a rectangular shape in a plan view extending in the depth direction of the storage space forming body 130 and are configured as through holes that pass through the mounting table 132 in the up-down direction (thickness direction).

[0051] The left side surface 134 is a plate-like body that constitutes the side surface on the left side in the figure of the storage space forming body 130, and is provided in an upright state on the end surface on the left side in the figure of the mounting base 132. The right side surface 135 is a plate-like body that constitutes the side surface on the right side in the figure of the storage space forming body 130, and is provided in an upright state on the end surface on the right side in the figure of the mounting base 132. The back surface 136 is a plate-like body that constitutes the rear surface of the storage space forming body 130, and is provided in an upright state on the end surface on the back side in the depth direction of the mounting base 132.

[0052] The top surface 137 is a plate-like body that constitutes the upper surface of the storage space forming body 130, and is provided at the upper end of each of the left side surface 134, the right side surface 135, and the back surface 136 in a state facing the mounting base 132. As a result, inside the storage space forming body 130, a rectangular storage space 131 extending in the vertical direction in the figure is formed.

[0053] A front spacer 141 is provided on the opening edge 140 that forms the opening of the accommodation space 131. The front spacer 141 is a component for supporting the accommodation space forming body 130 together with the back spacer 124 while preventing the opening edge 140 from contacting the first housing 101. The front spacer 141 is configured by forming an elastic urethane rubber sheet material into a rectangular frame shape. In this case, the thickness of the back spacer 124 is not particularly limited, but is preferably formed to a thickness of 1 mm or more and 10 mm or less. The front spacer 141 is attached to the opening edge 140 of the accommodation space forming body 130 with an adhesive (not shown).

[0054] The storage space forming body 130 is placed on the cold air generator 150 via a packing 142 and is housed in the first housing 101. The packing 142 is a part for preventing moisture in the storage space 131 from entering the cold air generator 150 through the pipe through-holes 133a and 133b, and is configured by forming an elastomer material such as rubber into a thin plate frame shape that covers the periphery of the blower pipe 156 and the intake pipe 157. In this case, a through-hole is formed in the center of the packing 142, and a bottom air layer 142a is formed between the storage space forming body 130 and the cold air generator 150. A right side spacer 143 and a top spacer 144 are provided between the storage space forming body 130 and the first housing 101, respectively.

[0055] The right side spacer 143 is a component for supporting the storage space forming body 130 together with the left side spacer 117 while preventing the right side surface 135 of the storage space forming body 130 from contacting the right side outer surface plate 102 of the first housing 101, and is made of an elastic material such as an elastomer material. In this embodiment, the right side spacer 143, like the left side spacer 117, is made of a plate-shaped polystyrene foam material, and is attached to the right side outer surface plate 102 of the first housing 101 with an adhesive.

[0056] Similar to the left side surface spacer 117, the right side surface spacer 143 is configured as a rectangular plate-like body smaller in size than the right side surface 135 of the storage space forming body 130. In this embodiment, the right side surface spacer 143 is formed in a rectangular shape with a length equal to the vertical length of the right side surface 135 of the storage space forming body 130 and shorter than each length in the depth direction. In this case, the thickness of the right side surface spacer 143 is not particularly limited, but is preferably formed to a thickness of 5 mm or more and 20 mm or less.

[0057] The right side spacer 143 is attached to the right side outer surface plate 102 of the first housing 101 so as to be located at a position close to the edge of the right side surface 135 on the opening / closing door 111 side. As a result, a right side air layer 143a is formed as a gap consisting of a cavity along the edge (side) on the back side in the depth direction of the right side spacer 143 between the right side surface 135 of the storage space forming body 130 and the right side outer surface plate 102 of the first housing 101. In addition, the right side spacer 143 is indicated by a two-dot chain line in FIG. 9. The right side air layer 143a is formed in the area indicated by the two-dot chain line in FIG. 9.

[0058] The top surface spacer 144 is a component for supporting the storage space forming body 130 together with the cold air generator 150 while preventing the top surface 137 of the storage space forming body 130 from contacting the upper storage section 105 of the first housing 101, and is made of an elastic material such as an elastomer material. In this embodiment, the top surface spacer 144 is made of a plate-shaped polystyrene foam material, similar to the left side surface spacer 117, and is attached to the bottom of the upper storage section 105 with an adhesive.

[0059] The top surface spacer 144 is configured as a rectangular plate-like body smaller in size than the top surface 137 of the storage space forming body 130. In this embodiment, the top surface spacer 144 is formed in a rectangular shape with a length shorter than the lengths in the left-right direction and the depth direction of the top surface 137 of the storage space forming body 130. In this case, the thickness of the top surface spacer 144 is not particularly limited, but is preferably formed to a thickness of 5 mm or more and 20 mm or less.

[0060] The top spacer 144 is attached to the lower surface of the upper storage unit 105 so as to be located at the position of the top surface 137 on the opening / closing door 111 side. As a result, a top air layer 144a is formed along the periphery of the top spacer 144 between the top surface 137 of the storage space forming body 130 and the lower surface of the upper storage unit 105. That is, the storage space forming body 130 is provided in a non-contact state without direct contact with the right side outer surface plate 102, the left side outer surface plate 115, the opening / closing door 111, the upper outer surface plate 118, and the back outer surface plate 120 that constitute the outer surface of the home delivery cooler box 100. The top spacer 144 prevents contact between the upper storage unit 105, which is continuously connected to the right side outer surface plate 102, and the storage space forming body 130.

[0061] 10, the cold air generator 150 is a mechanical device for supplying cold air into the accommodation space 131, and is configured to include a compressor 160, a condenser 161, an expansion mechanism (not shown), an evaporator 162, and a blower 163 in a support housing 151. The support housing 151 is a frame structure in the form of a rack with two upper and lower stages, in which metal (e.g., steel) plates are assembled into a rectangular parallelepiped shape. In this support housing 151, the compressor 160 and the condenser 161 are installed in the lower stage, and the expansion mechanism (not shown), the evaporator 162, and the blower 163 are installed in the upper stage.

[0062] In this case, a cold air generation space forming body 152 is formed in the upper stage inside the support housing 151. The cold air generation space forming body 152 is a space that generates cold air to be supplied into the accommodation space 131, and is mainly composed of an accommodation body 153 and a cold air circulation lid 154.

[0063] The container 153 is a part that surrounds and covers the four sides and bottom of the upper space in the support housing 151, and is configured by forming a heat insulating material such as a urethane foam material or a polystyrene foam material into a plate-like box shape with an opening at the top. The cold air circulation lid 154 is a part that covers the upper space in the support housing 151 from above and circulates cold air between the storage space 131 and the container 153, and is configured with a top surface 155, an exhaust pipe 156, and an intake pipe 157. Note that the container 153 is not shown in Figs. 5 and 9.

[0064] The top surface 155 is a portion that covers the upper space in the support housing 151 from above, and is formed by attaching a heat insulating material such as a urethane foam material or a polystyrene foam material formed in a plate shape to the lower surface of a metal (e.g., steel) plate-shaped body. The blowout pipe 156 is a component that forms a blowout hole 156a that supplies the cold air generated in the cold air generation space forming body 152 to the storage space 131, and is formed by forming a metal material (e.g., steel) or a resin material into a tubular shape extending in the vertical direction. The blowout pipe 156 is formed to a length such that one end (lower in the figure) penetrates the top surface 155 and the other end (upper in the figure) penetrates the pipe through hole 133a formed in the mounting base 132 and protrudes into the storage space 131. The blowout pipe 156 is formed in a rectangular shape in cross section that extends in the depth direction.

[0065] Moreover, the blast hole 156a in the blast pipe 156 opens in a shape that is inclined toward the center of the accommodation space 131. Specifically, the blast pipe 156 is formed such that, of the wall portions forming the blast hole 156a, the wall portion facing the outside of the mounting table 132 (i.e., the left side surface 134 side) is higher than the wall portion facing the center of the mounting table 132. In other words, the upper end surface of the blast pipe 156 forming the blast hole 156a is configured as an inclined surface that is inclined toward the center of the accommodation space 131. This blast pipe 156 is attached in a penetrating state to the end portion on the left side in the figure of the top surface 155.

[0066] The intake pipe 157 is a component that forms the intake hole 157a that supplies air from within the accommodation space 131 into the cool air generating space forming body 152, and is configured by forming a metal material (for example, made of steel) or a resin material into a tubular shape extending in the vertical direction. The intake pipe 157 is formed to a length such that one end (lower in the figure) penetrates the top surface 155, and the other end (upper in the figure) penetrates the pipe through hole 133b formed in the mounting base 132 and protrudes into the accommodation space 131. The cross-sectional shape of the intake pipe 157 is formed into a rectangular shape extending in the depth direction.

[0067] Also, the intake hole 157a of the intake pipe 157 opens in a shape that is inclined toward the center of the accommodation space 131. Specifically, the intake pipe 157 is formed such that, among the wall parts forming the intake hole 157a, the wall part facing the outside of the placement base 132 (i.e., the right side surface 135 side) is higher than the wall part facing the center of the accommodation space 131. In other words, the intake pipe 157 is configured such that the upper end surface of the intake pipe 157 forming the intake hole 157a is an inclined surface that is inclined toward the center of the placement base 132. This intake pipe 157 is attached in a state of penetrating the end part on the right side in the figure of the top surface 155. As a result, the upper space of the support housing 151 is formed airtight with respect to the accommodation space 131 by the cool air generation space forming body 152.

[0068] The compressor 160 is a mechanical device that compresses the refrigerant and sends it to the condenser 161. The condenser 161 is a mechanical device that releases the heat of the refrigerant to the outside. The expansion mechanism is a device for reducing the pressure of the refrigerant, and is composed of an expansion valve or a capillary tube. The evaporator 162 is a mechanical device that cools the refrigerant by absorbing the heat around the evaporator 162. In other words, the cold air generator 150 is composed of a heat pump. This evaporator 162 is provided between the blow-off pipe 156 and the intake pipe 157 in a plan view in the cold air generation space forming body 152.

[0069] The blower 163 is a mechanical device for supplying air from within the cold air generating space forming body 152 to the evaporator 162. The blower 163 is disposed in a position between the evaporator 162 and the intake pipe 157 in the cold air generating space forming body 152 so as to send the air from within the storage space 131 introduced by the intake pipe 157 to the evaporator 162.

[0070] The control device 170 is configured by housing a microcomputer including a CPU, a ROM, a RAM, etc., and controls the overall operation of the parcel cooler box 100, and cools the storage space 131 by executing a general control program (not shown) that is pre-stored in the storage device. Specifically, the control device 170 cools the storage space 131 by controlling the operation of the cold air generator 150. In this case, wiring (not shown) electrically connecting the control device 170 and the cold air generator 150 is provided through the second housing 114. The control device 170 also controls the operation of the lock mechanism 110d to lock or unlock the opening / closing door 111, and controls the operation of the light 118a to turn the light 118a on or off.

[0071] Moreover, the control device 170 is equipped with an operation panel 171, an external operator 172, an opening / closing sensor 173, and a temperature sensor 174. The operation panel 171 is composed of an input device consisting of a group of switches that receive instructions from the user and input them to the control device 170, and a liquid crystal display device that displays the operating status of the control device 170, and is attached to the upper storage section 105 of the first housing 101. In this case, the operation panel 171 is provided so as to be exposed above the storage space forming body 130 by opening the opening / closing door 111.

[0072] The external operator 172 is an input device for an administrator, such as the owner of the parcel cooler box 100, to remotely operate the control device 170. That is, the external operator 172 is connected to the control device 170 by wireless communication. Therefore, the administrator can control the operation of the cold air generator 150 and the lock mechanism 110d by operating the external operator 172. The external operator 172 can also be configured as a smartphone or tablet terminal installed with application software capable of controlling the control device 170 via an Internet line or a wireless LAN line.

[0073] The open / close sensor 173 is a detector consisting of a limit switch or the like that electrically detects the open / close state of the open / close door 111. The temperature sensor 174 is a detector consisting of a thermocouple or the like that electrically detects the temperature inside the accommodation space 131. The control device 170 is provided with a power supply unit (not shown) that receives power from an external power source (for example, a household 100V power source) and supplies the power to each of the parts that require power, such as the interphone 110b, the lighting 118a, the lock mechanism 110d, and the cool air generator 150, but since this is not directly related to the present invention, the description of this unit is omitted. In addition, in Figs. 7 and 10, the cross-sectional views of the compressor 160, the condenser 161, the evaporator 162, the control device 170, and the operation panel 171 are each shown by hatching.

[0074] (Operation of parcel cooler box 100) Next, the operation of the delivery cooler box 100 configured as described above will be described. This delivery cooler box 100 is fixedly installed on the ground at the entrance of a house. In this case, the delivery cooler box 100 can be fixed to a foundation of concrete, wood, stone, or the like fixed to the ground via fasteners such as bolts. In addition, in the delivery cooler box 100, an external power source is connected to the control device 170, and the home device is electrically connected to the intercom 110b.

[0075] First, a resident of a house in which the parcel cooler box 100 is installed opens the door 111 and operates the operation panel 171 to start the control device 170 and instruct the control device 170 to execute a general control program. In response to this instruction, the control device 170 executes the general control program and goes into a standby state waiting for input of a command from the user. In this case, the control device 170 controls the operation of the lock mechanism 110d to keep the door 111 unlocked.

[0076] Next, when the deliverer of the parcel WK stores the parcel WK in the parcel cooler box 100, the deliverer opens the opening / closing door 111 and places the parcel WK on the placement platform 132 in the storage space 131. Next, the deliverer operates the operation panel 171 to set the temperature in the storage space 131 and the locking setting of the opening / closing door 111 to the control device 170, and then closes the opening / closing door 111. As a result, after detecting that the opening / closing door 111 is closed, the control device 170 controls the operation of the lock mechanism 110d to lock the opening / closing door 111 and controls the operation of the cold air generator 150 to start cooling the storage space 131. In this embodiment, the deliverer can set the temperature in the storage space 131 to any temperature within the range of -30°C to 10°C.

[0077] More specifically, the control device 170 controls the operation of the compressor 160, the condenser 161, the expansion mechanism, and the evaporator 162 to cool the air in the cold air generating space forming body 152, and operates the blower 163 to supply the air in the cold air generating space forming body 152 toward the evaporator 162. That is, the evaporator 162 corresponds to the heat exchanger according to the present invention. As a result, in the accommodation space 131, cold air is supplied from the blower hole 156a of the blower pipe 156, and the air in the accommodation space 131 is sucked in from the intake hole 157a of the intake pipe 157, thereby lowering the temperature inside the room.

[0078] In this case, in the storage space 131, as shown in Fig. 10, cool air is blown out obliquely upward from the blower hole 156a of the blower pipe 156 toward the center of the mounting table 132, and air in the storage space 131 is sucked in obliquely downward from the center of the mounting table 132 (see dashed arrow). As a result, the delivery item cooler box 100 can efficiently cool the delivery item WK and the storage space 131 by surrounding it with cool air so as to envelop it from above.

[0079] Meanwhile, the air in the storage space 131 sucked in through the intake hole 157a is supplied to the upstream side of the blower 163 in the cool air generating space forming body 152, and then supplied to the evaporator 162 by the blower 163 (see the dashed arrow). This allows the home delivery cooler box 100 to efficiently cool the air collected from the storage space 131.

[0080] Moreover, the air supplied to the evaporator 162 is cooled by the evaporator 162, and then supplied to the blower pipe 156 by the blower 163 (see the dashed arrow). This allows the delivery cooler box 100 to efficiently guide the cold air generated in the storage space 131 to the blower pipe 156 and supply it into the storage space 131. Then, the control device 170 controls the operation of the cold air generator 150 based on a detection signal from the temperature sensor 174 so that the temperature in the storage space 131 becomes the temperature set by the deliverer.

[0081] Next, when the resident wants to remove the parcel WK from the parcel cooler box 100, the resident operates the external operating device 172 to instruct the control device 170 to unlock the opening and closing door 111. This allows the resident to open the opening and closing door 111 and remove the parcel WK from the storage space 131. In this case, the resident may operate the operation panel 171 to cause the control device 170 to stop the operation of the cold air generator 150, or may stop the activation state of the control device 170.

[0082] Also, the resident can continue the operation state to pre-cool the storage space 131 for the delivery of the next parcel WK. In this case, the inside of the cold air generating space forming body 152 communicates with the outside air only through the blowout pipe 156 and the intake pipe 157, but the blowout pipe 156 blows out cold air, and the intake pipe 157 is actively supplied with the cold air blown out by the blowout pipe 156. Therefore, the inside of the cold air generating space forming body 152 is prevented from increasing in temperature due to the intrusion of outside air. As a result, the inside of the storage space 131 is cooled quickly after a new parcel WK is placed and the opening and closing door 111 is closed.

[0083] As can be understood from the above operation description, according to the above embodiment, the delivery item refrigerated box 100 has a storage space forming body 130 in which a storage space 131 for storing delivery items WK is formed, which is arranged in a non-direct contact with the outer surface panel that constitutes the outer surface that comes into contact with the outside air, so that the cold air within the storage space forming body 130 is less likely to escape to the outside of the delivery item refrigerated box 100, thereby improving the cooling capacity within the storage space 131 and reducing energy loss due to cooling.

[0084] Furthermore, the present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the object of the present invention.

[0085] For example, in the above embodiment, right side spacer 143, left side spacer 117, front spacer 141, top spacer 144, and back spacer 124 are provided between storage space forming body 130 and right side outer surface plate 102, left side outer surface plate 115, opening / closing door 111, top outer surface plate 118, and back outer surface plate 120 that constitute the outer surface of the delivery cooler box. This allows delivery cooler box 100 to stably fix storage space forming body 130 while effectively improving the cooling capacity within storage space 131 and reducing energy loss for cooling.

[0086] However, the right side spacer 143, the left side spacer 117, the front spacer 141, the top spacer 144, and the back spacer 124 can be omitted between the storage space forming body 130 and the right side outer surface plate 102, the left side outer surface plate 115, the opening and closing door 111, the top outer surface plate 118, and the back outer surface plate 120. In this case, a cavity can be formed between the storage space forming body 130 and the right side outer surface plate 102, the left side outer surface plate 115, the top outer surface plate 118, and the back outer surface plate 120, in which the right side air layer 143a, the left side air layer 117a, the top air layer 144a, and the back air layer 124a are formed. In this case, the storage space forming body 130 is fixed to the cold air generator 150. According to this, the delivery cooler box 100 can effectively improve the cooling capacity within the storage space 131 without increasing the weight of the delivery cooler box 100, thereby reducing energy loss due to cooling.

[0087] In the above embodiment, the right side spacer 143, the left side spacer 117, the front spacer 141, the top spacer 144, and the back spacer 124 are made of an elastic elastomer material. As a result, the storage space forming body 130 of the home delivery cooler box 100 can be elastically supported, thereby suppressing damage to the storage space forming body 130 due to the collision of the home delivery WK. In addition, in the home delivery cooler box 100, even if the molding accuracy of the storage space forming body 130, the right side outer surface plate 102, the left side outer surface plate 115, the top outer surface plate 118, and the back outer surface plate 120 is reduced, the assembly work of each outer surface plate to the storage space forming body 130 can be made easy. However, the right side spacer 143, the left side spacer 117, the front spacer 141, the top spacer 144, and the back spacer 124 can also be made of a rigid body that does not have elasticity, for example, a plate-like body, a columnar body, or a block body thicker than a plate-like body. Also, the right side spacer 143, the left side spacer 117, the front spacer 141, the top spacer 144 and the rear spacer 124 can be constructed of a number of fibers in a cotton-like form.

[0088] In the above embodiment, the second housing 114 and the rear outer surface plate 120 are configured with the pressing bodies 116 and 123 on their respective inner surfaces. As a result, the home delivery cooler box 100 can stably support the storage space forming body 130 by pressing the left side spacer 117 and the rear spacer 124 against the storage space forming body 130. In addition, the home delivery cooler box 100 can further improve the cooling capacity in the storage space 131 and reduce energy loss for cooling by interposing the left side spacer 117, the rear spacer 124, and the pressing bodies 116 and 123 between the second housing 114 and the rear outer surface plate 120 and the storage space forming body 130. However, the second housing 114 and the rear outer surface plate 120 can also be configured so that the pressing bodies 116 and 123 are omitted and each inner surface directly presses the left side spacer 117 and the rear spacer 124. In this case, second housing 114 and outer rear surface plate 120 can press left side spacer 117 and rear spacer 124 by making them thick.

[0089] In the above embodiment, the right side spacer 143, the left side spacer 117, the top spacer 144 and the back spacer 124 are formed to have an area smaller than the area of ​​each of the faces (right side 135, left side 134, top 137, back 136) that face each spacer and extend parallel to each spacer in the accommodation space forming body 130. As a result, air layers (right side air layer 143a, left side air layer 117a, top air layer 144a and back air layer 124a) are formed at least partially around each spacer.

[0090] This allows delivery cooler box 100 to stably fix storage space forming body 130 while suppressing the weight of delivery cooler box 100. However, right side spacer 143, left side spacer 117, top spacer 144 and back spacer 124 can also be formed with an area equal to or greater than the area of ​​the surfaces (right side 135, left side 134, top surface 137, back surface 136) of storage space forming body 130 that face each spacer and extend parallel to each spacer.

[0091] In the above embodiment, the storage space forming body 130 is supported on the cold air generator 150. This allows the home delivery cooler box 100 to stably support the storage space forming body 130 via the cold air generator 150 while efficiently supplying cold air to the storage space forming body 130. However, the storage space forming body 130 can be configured to be supported in a hanging state relative to the upper storage section 105 of the first housing 101 instead of or in addition to the cold air generator 150. The cold air generator 150 can also be disposed to the side or above the storage space forming body 130. In this case, the blowout pipe 156 and the intake pipe 157 can be provided on the left side surface 134, the right side surface 135, the back surface 136, or the top surface 137 of the storage space forming body 130.

[0092] In the above embodiment, the blower hole 156a and the intake hole 157a are formed in a completely open state without being blocked in any way. However, the blower hole 156a and the intake hole 157a can be covered with a mesh member or louvers to prevent foreign matter from entering the blower pipe 156 and the intake pipe 157.

[0093] In the above embodiment, the cold air generator 150 is configured to include the cold air generation space forming body 152. Specifically, the cold air generator 150 is configured to cover the upper stage of the support housing 151 with the container 153 and the cold air circulation lid 154. However, the cold air generator 150 can be configured without the cold air generation space forming body 152. Specifically, the cold air generator 150 can be configured without the container 153. [Explanation of symbols]

[0094] WK: Home delivery, 100... home delivery cooler box, 101... first housing, 102... right side outer surface panel, 102a... ventilation hole, 103... front surface, 103a to 103d... openings, 104a to 104d... mounting plate, 105... upper storage section, 105a... mounting plate, 106... mailbox, 107... bottom surface, 110...upper cover, 110a...opening, 110b...intercom, 110c...nameplate, 110d...locking mechanism, 111...opening door, 111a...handle, 112...lower cover, 113...base, 114...second housing, 115...left side outer surface plate, 115a...vent, 116...pressure body, 117...left side spacer, 117a...left side air layer, 118...upper outer surface plate, 118a...lighting, 120: rear outer surface plate, 120a: opening, 121: closing plate, 122: opening and closing opening, 123: pressing body, 124: rear spacer, 124a: rear air layer, 130: storage space forming body, 131: storage space, 132: placement base, 133a, 133b: pipe through holes, 134: left side surface, 135: right side surface, 136: rear surface, 137: top surface, 140...opening edge portion, 141...front spacer, 142...packing, 142a...bottom air layer, 143...right side spacer, 143a...right side air layer, 144...top spacer, 144a...top air layer, 150... cold air generator, 151... support housing, 152... cold air generation space forming body, 153... container, 154... cold air circulation cover, 155... top surface, 156... blowpipe, 156a... blowhole, 157... intake pipe, 157a... intake hole, 160 ... compressor, 161 ... condenser, 162 ... evaporator, 163 ... blower, 170: control device, 171: operation panel, 172: external operator, 173: opening / closing sensor, 174: temperature sensor.

Claims

1. A parcel cooler box installed outdoors, A storage space forming body in which a placement base, a left side surface, a right side surface, a back surface, a top surface, and an opening edge portion that forms an opening of the storage space are each made of a thermal insulating material, an opening / closing door formed to cover an opening of the storage space and opening / closing the storage space; an outer surface plate provided on the outside of the storage space forming body and constituting an outer surface in contact with outside air; a front surface disposed opposite to the opening edge portion of the storage space formation body; a cold air generator for generating cold air to be introduced into the storage space, The storage space forming body is A parcel cooler box characterized in that it is provided in a non-contact manner and not in direct contact with the outer surface panel and the front surface.

2. In the parcel cooler box according to claim 1, A parcel cooler box characterized in that it is provided with an elastic spacer between the front surface and the opening edge portion of the storage space forming body.

3. In the parcel cooler box according to claim 2, A parcel cooler box characterized in that an elastic spacer is provided between the back surface of the storage space forming body and the outer surface panel.

4. In the parcel cooler box according to claim 1, A parcel cooler box, characterized in that the front surface is formed integrally with the outer surface panel.

5. In the parcel cooler box according to claim 1, A parcel cooler box characterized by having an upper storage section for storing mail between the top surface and the outer surface panel of the storage space forming body.

6. In the parcel cooler box according to claim 1, a tubular air outlet that penetrates the mounting base and opens into the storage space, and that blows out the cold air generated by the cold air generator; A parcel cooler box characterized by having an intake hole formed in a tubular shape that penetrates the placement base and opens into the storage space, for directing air within the storage space to the cold air generator.

7. In the parcel cooler box according to claim 1, A cold air generating space forming body is provided below the storage space forming body, and has four walls, a bottom and a top surface each made of a thermal insulating material, and contains a part of the cold air generating device that generates the cold air, The cold air generating space forming body is A home delivery cooler box, characterized in that the top surface is constructed separately from the placement section and is arranged adjacent to and below the placement section.

Citation Information

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