Home delivery parcel cold insulation box

Abstract

To provide a home delivery parcel cold insulation box capable of stably cooling the inside of a housing space by suppressing change of air flow due to a position of a home delivery parcel in the home delivery parcel housing space.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. A loading table 132 for loading a home delivery parcel WK is disposed, and a housing space 131 for housing the home delivery parcel WK is formed inside of the housing space formation body 130. An air blow-off pipe 156 and an air intake pipe 157 are respectively disposed on right and left edge portions of the loading table 132 in a projecting state. The air blow-off pipe 156 is connected to the cool air generator 150 and supplies the cool air generated by the cool air generator 150 into the housing space 131. The intake pipe 157 recovers the air in the housing space 131 into the cool air generator 150.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present invention relates to a cold storage box for home delivery items that temporarily stores home delivery items in a refrigerated or frozen state.

Background Art

[0002] Conventionally, there has been a cold storage box for home delivery items that temporarily stores home delivery items, which are items delivered to detached houses and apartment houses, in a refrigerated or frozen state. For example, Patent Document 1 below discloses a home delivery item storage box device as a cold storage box for home delivery items, which includes a box portion provided with a cooling device portion having an electronic cooling device unit below a storage portion for storing home delivery items. In this case, the home delivery item storage box device is provided with a net-like bottom plate on which home delivery items are placed between the storage portion and the cooling device portion, and is configured such that the cold air generated by the cooling device portion is supplied to the storage portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

[0004] However, in the cold storage box for home delivery items described in Patent Document 1 above, since the air enters and exits the cooling device portion through the net-like bottom plate, there is a problem that unevenness occurs in the air flow to the cooling device portion depending on the position of the home delivery items on the bottom plate, and it is difficult to efficiently circulate the cold air throughout the storage portion.

Summary of the Invention

[0005] The present invention has been made to address the above problems, and an object thereof is to provide a cold storage box for home delivery items that can suppress changes in the air flow depending on the position of the home delivery items in the storage space of the home delivery items and stably cool the inside of the storage space.

[0006] In order to achieve the above object, the present invention is characterized in that it is a cold storage box for home delivery goods installed outdoors, which includes a mounting table that forms a storage space for home delivery goods, a left side surface, a right side surface, a back surface, a top surface, and a storage space forming body in which an opening edge that forms an opening of the storage space is made of a heat insulating material respectively; a cold air generator provided below the mounting table for generating cold air; an air jet hole that opens into the storage space for jetting the cold air generated by the cold air generator; an air intake hole that opens into the storage space for guiding the air in the storage space to the cold air generator; and a cold air generation space forming body that has four-sided walls, a bottom surface, and a top surface each made of a heat insulating material below the storage space forming body and houses the part for generating cold air in the cold air generator. The cold air generation space forming body is characterized in that the top surface is configured separately from the mounting table and is adjacently arranged below the mounting portion.

[0007] According to the characteristics of the present invention configured as described above, in the cold storage box for home delivery goods, an air jet hole and an air intake hole are respectively provided at the edge of the mounting table on which the home delivery goods are placed in the storage space for housing the home delivery goods. That is, in the cold storage box for home delivery goods according to the present invention, since an air jet hole and an air intake hole are respectively provided at the edge where it is difficult to place the home delivery goods on the mounting table, the jetting of cold air from the air jet hole and the suction from the air intake hole are hardly inhibited, and the change in the air flow due to the placement position of the home delivery goods on the mounting table can be suppressed, and the inside of the storage space can be stably cooled.

[0008] Another feature of the present invention is that in the cold storage box for home delivery goods, an air layer is provided between the mounting table and the top surface.

[0009] Another feature of the present invention is that in the cold storage box for home delivery goods, the air jet hole is formed in a tubular shape that penetrates through the mounting table made of a heat insulating material and opens into the storage space, and the air intake hole is formed in a tubular shape that penetrates through the mounting table made of a heat insulating material and opens into the storage space.

[0010] Another feature of the present invention is that in the cold storage box for home delivery goods, packing for covering the periphery of each of the air jet hole and the air intake hole formed in a tubular shape is provided between the mounting table and the top surface.

[0011] In addition, another feature of the present invention is that in the home delivery item cold storage box, there is further provided an outer surface plate that is provided outside the accommodation space forming body and constitutes an outer surface in contact with the outside air, and an upper accommodation part for accommodating postal items is provided between the top surface of the accommodation space forming body and the outer surface plate.

[0012] The present invention also includes an accommodation space forming body having a placement table for placing home delivery items and forming an accommodation space for accommodating the home delivery items, a cold air generator provided below the placement table for generating cold air, air jet holes that open only at the edge of the placement table in the accommodation space for jetting the cold air generated by the cold air generator, and intake holes that open only at the edge of the placement table in the accommodation space for guiding the air in the accommodation space to the cold air generator. The placement table may be made of a heat insulating material. According to this, in the home delivery item cold storage box, air jet holes and intake holes are respectively provided at the edge of the placement table on which the home delivery items are placed in the accommodation space for accommodating the home delivery items. That is, in the home delivery item cold storage box according to the present invention, since the air jet holes and the intake holes are respectively provided at the edge where it is difficult to place the home delivery items on the placement table, the jetting of cold air from the air jet holes and the suction from the intake holes of the cold air are hardly inhibited, and the change in the air flow due to the placement position of the home delivery items on the placement table can be suppressed, and the inside of the accommodation space can be stably cooled.

[0013] In this case, in the home delivery item cold storage box, at least one of the air jet holes and the air intake holes may open toward the central portion side of the storage space. According to this, in the home delivery item cold storage box, since at least one of the air jet holes and the air intake holes opens toward the central portion side of the storage space, cold air can be jetted toward the central portion of the storage space and / or cold air can be sucked from the central portion side of the storage space, and the inside of the storage space can be efficiently cooled. Further, the home delivery item cold storage box according to the present invention can prevent the holes from being blocked even when a home delivery item is placed on the air jet holes and / or the air intake holes, and can ensure the supply and / or suction of cold air. Note that at least one of the air jet holes and the air intake holes can be formed by the wall portion facing the outside of the mounting table extending upward more than the wall portion facing the inside of the mounting table among the wall portion forming the air jet hole and / or the wall portion forming the air intake hole.

[0014] Also, in these cases, in the home delivery item cold storage box, the air jet holes and the air intake holes may be respectively formed at the opposing edge portions of the mounting table. According to this, in the home delivery item cold storage box, since the air jet holes and the air intake holes are respectively formed at the opposing edge portions of the mounting table, the air inside the storage space can be effectively circulated, and the inside of the storage space can be quickly filled with cold air evenly.

[0015] Also, in these cases, in the home delivery item cold storage box, the air jet holes and the air intake holes may be respectively formed on the left side and the right side when the opening for taking in and out the home delivery item with respect to the storage space is viewed from the front. According to this, in the home delivery item cold storage box, since the air jet holes and the air intake holes are respectively formed on the left side and the right side when the opening for taking in and out the home delivery item with respect to the storage space is viewed from the front, the main flow of cold air in the storage space becomes parallel to the opening, and the outflow of cold air when the opening is released to the outside air can be suppressed.

[0016] Also, in these cases, in the home delivery item cold storage box, further, a cold air generation space former for hermetically accommodating the part that generates cold air in the cold air generator in the accommodation space is provided, and the air jet holes and the air intake holes may communicate with each other inside the cold air generation space former. According to this, the home delivery item cold storage box is provided with a cold air generation space former for hermetically accommodating the part that generates cold air in the cold air generator in the accommodation space, and the air jet holes and the air intake holes communicate with each other inside this cold air generation space former. Therefore, the air sucked from the inside of the accommodation space and the cold air generated inside the cold air generation space former can be effectively cooled respectively, and the energy loss for the generation and maintenance of cold air can be suppressed. Further, according to the home delivery item cold storage box according to the present invention, the cold air inside the cold air generation space former can be quickly supplied to the accommodation space after taking in and out the home delivery items, and the accommodation space can be cooled at an early stage.

[0017] Also, in these cases, in the home delivery item cold storage box, the cold air generator includes a heat exchanger that takes away the heat of the air inside the cold air generation space former and cools it, and a blower that causes the air inside the cold air generation space former to flow with respect to the heat exchanger. The heat exchanger is arranged between the air jet hole and the air intake hole, and the blower may be provided in such a direction that the air inside the cold air generation space former flows from the air intake hole side to the air jet hole side. According to this, in the home delivery item cold storage box, the heat exchanger that takes away the heat of the air inside the cold air generation space former and cools it is arranged between the air jet hole and the air intake hole, and the blower is provided in such a direction that the air inside the cold air generation space former flows from the air intake hole side to the air jet hole side. Therefore, the cold air sucked from the inside of the accommodation space and the cold air generated inside the cold air generation space former can be efficiently circulated between the accommodation space former and the cold air generation space former.

Brief Description of the Drawings

[0018]

Figure 1

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Figure 3

Figure 4

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Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Embodiments for Carrying Out the Invention

[0019] Hereinafter, an embodiment of the home delivery item cold storage box according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a front view of the schematic external configuration of the home delivery item cold storage box 100 according to the present invention. Further, FIG. 2 is a perspective view showing a rear view of the schematic external configuration of the home delivery item cold storage box 100 shown in FIG. 1. Further, FIG. 3 is a block diagram of a control system for controlling the operation of the home delivery item cold storage box 100 shown in FIG. 1. Further, FIG. 4 is a perspective view showing a state in which the opening / closing door 111 and the lower cover 112 in the home delivery item cold storage box 100 shown in FIG. 1 are respectively omitted. Further, FIG. 5 is a perspective view showing a state in which the upper cover 110, the base 113, and the second housing 114 in the home delivery item cold storage box 100 shown in FIG. 4 are respectively omitted. This home delivery item cold storage box 100 is a device provided at the entrance of a detached house for temporarily storing home delivery items WK in a refrigerated state or a frozen state.

[0020] (Configuration of the home delivery item cold storage box 100) The home delivery item cold storage box 100 includes a first housing 101. The first housing 101 is a component that supports the devices and parts constituting the home delivery item cold storage box 100 and constitutes a part (right side surface) of the outer surface of the home delivery item cold storage box 100, and is made of a metal plate (for example, steel).

[0021] Specifically, as shown in FIG. 6, the first housing 101 includes a right side surface 102, a front surface 103, an upper storage portion 105, and a bottom surface 107. The right side surface 102 is a portion that constitutes the right side surface of the outer surface of the home delivery item cold storage box 100, and is formed of a rectangular plate-like body extending in the vertical direction. At the lower part of the right side surface 102, a louver-type vent 102a for allowing air to enter and exit the cold air generator 150 provided inside the home delivery item cold storage box 100 is formed.

[0022] The front surface 103 is a portion formed on the front side of the home delivery item cold storage box 100, and is composed of a rectangular plate-like body extending in the vertical direction. In this case, four openings 103a, 103b, 103c, and 103d that open in a square shape when viewed from the front are formed side by side in the vertical direction on the front surface 103. The openings 103a and 103b are the front openings in the upper storage portion 105, and are formed adjacent to each other in the vertical direction. The opening 103c is a portion that opens to the accommodation space forming body 130. The opening 103d is a portion that opens to the cold air generator 150.

[0023] Also, mounting plates 104a, 104b, 104c, and 104d are respectively provided on a part of the periphery of each of the openings 103a to 103d on the front surface 103. As shown in FIG. 7, the mounting plate 104a is a metal (for example, steel) part to which the upper cover 110 is attached, and a plate-like body having an L-shaped cross-sectional shape extends horizontally. The mounting plate 104b is a metal part to which the opening and closing door 111 is attached, and a plate-like body having an L-shaped cross-sectional shape extends vertically. As shown in FIG. 7, the mounting plate 104c is a metal part to which the lower cover 112 is attached, and a plate-like body having an L-shaped cross-sectional shape extends horizontally. The mounting plate 104d is a metal part for attaching the first housing 101 to the base 113, and a plate-like body having a U-shaped cross-sectional shape extends horizontally.

[0024] The upper storage portion 105 is a portion that forms a mailbox 106 and supports the control device 170 and the operation panel 171 respectively, and is formed in a cylindrical shape that penetrates in the front-rear direction of the home delivery item cold storage box 100. In this case, a mounting plate 105a for attaching a rear cover 120 is provided on the end surface on the rear side, which is the side opposite to the front surface 103 in the upper storage portion 105. The mailbox 106 is a portion for temporarily storing mail items, and the space in the upper right part when viewed from the front in the upper storage portion 105 is partitioned into a cylindrical shape that penetrates in the front-rear direction of the home delivery item cold storage box 100.

[0025] The bottom surface 107 is the part on which the cold air generator 150 is placed, and is formed by shaping a metal plate material (for example, made of steel) into a square shape in plan view. On this bottom surface 107, a mounting plate (not shown) similar to the mounting plate 104d is provided on the end surface on the back side, which is the side opposite to the front surface 103. These right side surface 102, front surface 103, upper housing portion 105, and bottom surface 107 are integrally formed by sheet metal working. That is, the first housing 101 is formed in a frame shape with the portions below each upper housing portion 105 on the back surface and the left side surface being open. And the first housing 101 is mounted on the base 113 with the second housing 114 mounted on the left side surface side.

[0026] The upper cover 110 is a component that closes the opening 103a and constitutes a part of the front surface on the outer surface of the home delivery cold storage box 100, and is formed by shaping a metal plate material into a rectangular shape extending in the left - right direction in front view. On this upper cover 110, an opening and closing port 110a that can be freely opened and closed and serves as a receiving port for mail is provided at a portion facing the mailbox 106, and an intercom 110b is provided immediately to the left of this opening and closing port 110a in the drawing. The intercom 110b is an electrical device for a person inside the house (resident) and a visitor to communicate, and is electrically connected to a master unit (not shown) provided inside the house. Also, a name plate 110c as a house number plate is provided above the opening and closing port 110a on the upper cover 110.

[0027] Also, 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 and 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. This upper cover 110 is detachably attached to the first housing 101 but is attached in a fixed state where it does not move.

[0028] 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 on the outer surface of the home delivery item cold storage box 100. It 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 have 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. That is, the opening / closing door 111 is formed to have a size that integrally covers the opening 103b and the opening 103c.

[0029] Inside this opening / closing door 111, a heat insulating material (not shown) made of a foamed resin material (such as foamed urethane or foamed polystyrene) obtained by foaming a resin material with a foaming agent is embedded in a portion facing the storage space forming body 130. Also, on the outer surface of the opening / closing door 111, a handle 111a that a user holds to open and close the opening / closing door 111 is provided. And this opening / closing door 111 is movably attached to the mounting plate 104b and functions as a single-opening door.

[0030] The lower cover 112 is a component that closes the opening 103d and constitutes yet another part of the front surface on the outer surface of the home delivery item cold storage box 100. It is configured by forming a metal plate material into a rectangular shape when viewed from the front. This lower cover 112 is detachably attached to the first housing 101 but is fixed in a non-movable state.

[0031] As shown in FIG. 8, the base 113 is a component that constitutes the bottom of the home delivery item cold storage box 100 and is fixed to the ground on which the home delivery item cold storage box 100 is installed. It is configured by forming a metal (e.g., steel) plate material into a square frame shape when viewed in plan. The first housing 101 and the second housing 114 are attached to this base 113 in a state where they are respectively placed.

[0032] The second housing 114 is a component that is respectively attached to the first housing 101, the base 113, and the back cover 120, and constitutes another part (the left side and the upper surface) of the outer surface of the home delivery cold storage box 100. It is made of a metal (for example, steel) plate material. More specifically, as shown in FIG. 8, the second housing 114 is configured to include a left side surface 115 and a top surface 118 respectively.

[0033] The left side surface 115 is a part that constitutes the left outer surface of the home delivery cold storage box 100, and is formed by bending both side edges of a rectangular plate material extending in the vertical direction inward in a U-shape. At the lower part of the left side surface 115, a louver-type vent 115a is formed to allow air to enter and exit the cold air generator 150 provided inside the home delivery cold storage box 100.

[0034] Also, on the inner surface of the left side surface 115, a pressing body 116 is provided 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 accommodation space forming body 130, and is formed in a shape protruding toward the accommodation space forming body 130 by bending both side edges of a metal (for example, steel) plate material inward in a U-shape. This pressing body 116 is attached at a position closer to the opening / closing door 111 side on the left side surface 115.

[0035] The left side spacer 117 is a component for supporting the accommodation space forming body 130 together with the right side spacer 143 described later while preventing the left side surface 134 of the accommodation space forming body 130 from contacting the left side surface 115 of the second housing 114. This left side spacer 117 is composed of a rigid body having excellent heat insulation properties or an elastic body having elasticity such as an elastomer material.

[0036] Here, for a material with excellent heat insulation properties, it is preferable that the thermal conductivity is 0.2 or less, and more preferably 0.1 or less. Also, the rigid body is composed of a thermosetting resin material (for example, phenolic resin, epoxy resin, unsaturated polyester resin, etc.) or a thermoplastic resin material (for example, polypropylene, polystyrene, polyvinyl chloride, polycarbonate) formed in a plate shape. Further, the elastomer material is composed of a thermosetting elastomer material (for example, vulcanized rubber, urethane rubber, silicone rubber, fluorine rubber, etc.) or a thermoplastic elastomer material (for example, styrene-based, olefin-based, vinyl chloride-based, urethane-based, or amide-based resins, etc.) alone or with a foaming agent added. In this embodiment, the left side spacer 117 is composed of a plate-shaped expanded polystyrene material.

[0037] This left side spacer 117 is composed of a rectangular plate-like body having a size smaller than the left side surface 134, which is the left side surface of the accommodation space forming body 130 in the illustrated left side. In this embodiment, the left side spacer 117 is formed in a rectangular shape having the same length as the vertical length of the left side surface 134 of the accommodation space forming body 130 and a length shorter than each length in the depth direction. In this case, the thickness of the left side spacer 117 is not particularly limited, but it is preferably formed to have a thickness of 5 mm or more and 20 mm or less.

[0038] And, as shown in FIG. 7, this left side spacer 117 is attached to the pressing body 116 so as to be positioned at a position close to the edge on the opening / closing door 111 side of the left side surface 134. Thereby, a left side air layer 117a is formed as a cavity along the right edge (side) of the left side spacer 117 between the left side surface 134 of the accommodation space forming body 130 and the left side surface 115 of the second housing 114. Note that the left side spacer 117 is shown by a broken line (hidden line) in FIG. 7 and by a two-dot chain line (imaginary line) in FIG. 9. Also, the left side air layer 117a is formed in the region indicated by the broken line (hidden line) in FIG. 7 and in the region indicated by the two-dot chain line (imaginary line) in FIG. 9.

[0039] The top surface 118 is a part that constitutes the upper outer surface of the home delivery chilled box 100, and is formed by bending three edges of a rectangular plate material in a U shape inward respectively in a plan view. On this top surface 118, lighting 118a is provided at a U-shaped eaves portion that is exposed to the outside on the lower surface facing downward in the figure in a plan view. The lighting 118a is a lighting fixture for illuminating a portion below the top surface 118 in the home delivery chilled box 100, and is composed of a plurality of LEDs whose operation is controlled by a control device 170.

[0040] This second housing 114 is attached to the left edge of the first housing 101 shown in the figure by screws (not shown) with the lower end of the left side surface 115 inserted into the upper surface of the base 113, and the top surface 118 is attached to the upper surface of the first housing 101 by screws (not shown). Thereby, the accommodation space forming body 130 is supported in a state of being sandwiched between the left side surface 115 of the second housing 114 and the right side surface 102 of the first housing 101 via the left side spacer 117 and a right side spacer 143 to be described later.

[0041] As shown in FIGS. 2, 7, and 8 respectively, the rear cover 120 is a component that is attached to the first housing 101, the base 113, and the second housing 114 respectively and constitutes another part (the rear surface) of the outer surface of the home delivery chilled box 100, and is composed of a metal plate material (for example, made of steel). An opening 120a communicating with the upper accommodation portion 105 is formed in a rectangular shape in a rear view at the upper part of this rear cover 120, and this opening 120a is closed by a closing plate 121.

[0042] The closing plate 121 is a plate-shaped component made of metal (for example, made of steel) for closing the entire opening 120a, and is attached to the rear cover 120 by screws (not shown). An openable and closable plate-shaped opening 122 serving as an opening for taking out mail is provided at a portion of the closing plate 121 facing the mail receptacle 106. Further, a pressing body 123 is provided on the inner surface of the rear cover 120 in a state of protruding from the inner surface.

[0043] The pressing body 123, similar to the pressing body 116, is a component for pressing the back spacer 124 against the back surface 136 of the accommodation space forming body 130. It is formed by bending both side edges of a metal (e.g., steel) plate material inward in a U-shape so as to protrude toward the accommodation space forming body 130 side. This pressing body 123 is attached to the central portion in the left-right direction of the back cover 120. And this back cover 120 is attached to the first housing 101 and the second housing 114 respectively by screws (not shown) with its lower end inserted into the upper surface of the base 113.

[0044] The back spacer 124 is a component for supporting the accommodation space forming body 130 together with the front spacer 141 described later while preventing the back surface 136 of the accommodation space forming body 130 from contacting the back cover 120. This back spacer 124 is composed of a plate-shaped styrofoam material, similar to the left side surface spacer 117.

[0045] Also, the back spacer 124 is composed of two rectangular plate-like bodies having a size smaller than the back surface 136 of the accommodation space forming body 130. In the present embodiment, the two plate-like bodies constituting the back spacer 124 are formed in a rectangular shape having the same length as the length in the left-right direction of the back surface 136 of the accommodation space forming body 130 and a length shorter than the length in the up-down direction. In this case, the thickness of the back spacer 124 is not particularly limited, but it is preferably formed to have a thickness of 5 mm or more and 20 mm or less.

[0046] And these back spacers 124 are attached to the pressing body 123 so as to be positioned at the central portion in the left-right direction of the back surface 136 of the accommodation space forming body 130. Thereby, as shown in FIG. 7, a back air layer 124a is formed along the periphery of the back spacer 124 between the back surface 136 of the accommodation space forming body 130 and the back cover 120.

[0047] The accommodation space forming body 130 is a component for forming an accommodation space 131 for accommodating the delivery item WK, and is formed in a rectangular parallelepiped box shape extending in the vertical direction shown in the figure with the front side of the delivery item cold storage box 100 being open. More specifically, as shown in FIG. 9, the accommodation space forming body 130 is configured to include a mounting table 132, a left side surface 134, a right side surface 135, a back surface 136, and a top surface 137 respectively. This accommodation space forming body 130 is composed of a heat insulating material made of a foamed resin material (such as a foamed urethane material or a foamed polystyrene material) obtained by foaming a resin material with a foaming agent and sandwiched from both sides by a metal plate (for example, an aluminum plate) or a resin plate. Here, the heat insulating material preferably has a thermal conductivity of 0.2 or less, and more preferably a material with a thermal conductivity of 0.1 or less may be used.

[0048] As shown in FIGS. 7 and 10 respectively, the mounting table 132 is a part for forming the bottom in the accommodation space 131 and supporting the delivery item WK accommodated in the accommodation space 131, and the upper surface is configured in a flat plate shape. As shown in FIG. 10, through holes 133a and 133b for pipes are respectively formed at the left and right edges shown in the figure on this mounting table 132. The through holes 133a and 133b for pipes are parts for respectively passing through the jet pipe 156 and the intake pipe 157 and positioning them in the accommodation space 131, and are formed in a rectangular shape in plan view extending in the depth direction of the accommodation space forming body 130 and are through holes penetrating the mounting table 132 in the vertical direction (thickness direction).

[0049] The left side surface 134 is a plate-like body constituting the left side surface shown in the figure of the accommodation space forming body 130, and is provided in an upright state on the left end surface shown in the figure of the mounting table 132. The right side surface 135 is a plate-like body constituting the right side surface shown in the figure of the accommodation space forming body 130, and is provided in an upright state on the right end surface shown in the figure of the mounting table 132. The back surface 136 is a plate-like body constituting the rear side surface of the accommodation 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 table 132.

[0050] The top surface 137 is a plate-like body that constitutes the upper surface of the accommodation space forming body 130, and is provided in a state facing the mounting table 132 at the upper end portions of the left side surface 134, the right side surface 135, and the rear surface 136. Thus, a rectangular parallelepiped accommodation space 131 extending in the vertical direction shown in the figure is formed inside the accommodation space forming body 130.

[0051] Also, a front spacer 141 is provided at the opening edge portion 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 rear spacer 124 while preventing the opening edge portion 140 from contacting the first housing 101. This front spacer 141 is configured by forming a urethane rubber sheet material having elasticity in a rectangular frame shape. In this case, the thickness of the rear spacer 124 is not particularly limited, but it is preferably formed to have a thickness of 1 mm or more and 10 mm or less. And this front spacer 141 is attached to the opening edge portion 140 of the accommodation space forming body 130 by an adhesive (not shown).

[0052] This accommodation space forming body 130 is accommodated in the first housing 101 in a state of being placed on the cold air generator 150 via the packing 142. The packing 142 is a component for preventing moisture in the accommodation 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 a rubber material in a thin plate frame shape covering the periphery of the air supply pipe 156 and the intake pipe 157. In this case, a through hole is formed in the central portion of the packing 142, and a bottom air layer 142a is formed between the accommodation space forming body 130 and the cold air generator 150. And a right side spacer 143 and a top surface spacer 144 are respectively provided between the accommodation space forming body 130 and the first housing 101.

[0053] The right side spacer 143 is a component for supporting the accommodation space forming body 130 together with the left side spacer 117 while preventing the right side surface 135 of the accommodation space forming body 130 from contacting the right side surface 102 of the first housing 101, and is made of an elastic material such as an elastomer material. In the present embodiment, the right side spacer 143 is composed of a plate-shaped expanded polystyrene material, similar to the left side spacer 117, and is attached to the right side surface 102 of the first housing 101 with an adhesive.

[0054] This right side spacer 143 is composed of a rectangular plate-like body having a size smaller than the right side surface 135 of the accommodation space forming body 130, similar to the left side spacer 117. In the present embodiment, the right side spacer 143 is formed in a rectangular shape having the same length as the vertical length of the right side surface 135 of the accommodation space forming body 130 and a length shorter than each length in the depth direction. In this case, the thickness of the right side spacer 143 is not particularly limited, but it is preferably formed to have a thickness of 5 mm or more and 20 mm or less.

[0055] And this right side spacer 143 is attached to the right side surface 102 of the first housing 101 so as to be positioned at a position close to the edge on the opening / closing door 111 side of the right side surface 135. Thereby, a right side air layer 143a is formed as a gap in the form 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 accommodation space forming body 130 and the right side surface 102 of the first housing 101. In FIG. 9, the right side spacer 143 is shown by a two-dot chain line. Also, the right side air layer 143a is formed in the region shown by the two-dot chain line in FIG. 9.

[0056] The top surface spacer 144 is a component for supporting the accommodation space forming body 130 together with the cold air generator 150 while preventing the top surface 137 of the accommodation space forming body 130 from contacting the upper accommodation portion 105 of the first housing 101, and is made of a material having elasticity such as an elastomer material. In the present embodiment, the top surface spacer 144 is composed of a plate-shaped polystyrene foam material, similar to the left side surface spacer 117, and is attached to the bottom of the upper accommodation portion 105 with an adhesive.

[0057] This top surface spacer 144 is composed of a rectangular plate-shaped body having a size smaller than that of the top surface 137 of the accommodation space forming body 130. In the present embodiment, the top surface spacer 144 is formed in a rectangular shape having a length shorter than the lengths in the left-right direction and the depth direction on the top surface 137 of the accommodation space forming body 130. In this case, the thickness of the top surface spacer 144 is not particularly limited, but it is preferably formed to have a thickness of 5 mm or more and 20 mm or less.

[0058] And this top surface spacer 144 is attached to the lower surface of the upper accommodation portion 105 so as to be positioned at a position on the opening / closing door 111 side of the top surface 137. Thereby, a top surface air layer 144a is formed along the periphery of the top surface spacer 144 between the top surface 137 of the accommodation space forming body 130 and the lower surface of the upper accommodation portion 105. That is, the accommodation space forming body 130 is provided in a non-contact state where it does not directly contact the right side surface 102, the left side surface 115, the opening / closing door 111, the top surface 118, and the back cover 120 that constitute the outer surface of the parcel cold storage box.

[0059] As shown in Fig. 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 shape of a two-stage pedestal formed by assembling metal plates (for example, steel plates) in a rectangular parallelepiped shape. In this support housing 151, the compressor 160 and the condenser 161 are respectively installed in the lower stage, and the expansion mechanism (not shown), the evaporator 162, and the blower 163 are respectively installed in the upper stage.

[0060] In this case, in the upper stage within the support housing 151, a cold air generation space former 152 is formed. The cold air generation space former 152 is a space for generating the cold air to be supplied into the accommodation space 131, and is mainly configured to include a container 153 and a cold air circulation cover 154.

[0061] The container 153 is a component that surrounds and covers the four sides and the bottom of the upper-stage space in the support housing 151, and is configured by forming a heat-insulating material such as a foamed urethane material or a foamed polystyrene material formed in a plate shape into a box shape with an open upper side. The cold air circulation cover 154 is a component for circulating cold air between the upper-stage space in the support housing 151 and the accommodation space 131 while covering the upper-stage space from above, and is configured to include a top surface 155, an air jet pipe 156, and an air intake pipe 157 respectively. In addition, in Figs. 5 and 9, the illustration of the container 153 is omitted.

[0062] The top surface 155 is a part that covers the upper space in the support housing 151 from above, and is configured by attaching a heat insulating material such as a urethane foam material or a styrofoam material formed in a plate shape to the lower surface of a plate-shaped body made of metal (for example, steel). The air jet pipe 156 is a component that forms an air jet hole 156a for supplying the cold air generated in the cold air generation space forming body 152 into the accommodation space 131, and is formed in a tubular shape extending in the vertical direction from a metal material (for example, steel) or a resin material. One end (the lower end in the figure) of this air jet pipe 156 penetrates the top surface 155, and the other end (the upper end in the figure) penetrates a pipe through hole 133a formed in the mounting table 132 and protrudes into the accommodation space 131. Also, the air jet pipe 156 is formed with a rectangular cross-sectional shape extending in the depth direction.

[0063] Also, the air jet hole 156a in the air jet pipe 156 opens in a shape inclined toward the central portion side of the accommodation space 131. Specifically, in the air jet pipe 156, among the wall portions forming the air jet hole 156a, the height of the wall portion facing the outer side of the mounting table 132 (that is, the left side surface 134 side) is higher than the wall portion facing the central portion side of the mounting table 132. In other words, the upper end surface of the air jet pipe 156 forming the air jet hole 156a is configured by an inclined surface inclined toward the central portion side of the accommodation space 131. This air jet pipe 156 is attached in a state of penetrating the left end portion in the figure on the top surface 155.

[0064] The intake pipe 157 is a component that forms an intake hole 157a for supplying the air in the accommodation space 131 into the cold air generation space forming body 152, and is formed in a tubular shape extending in the vertical direction from a metal material (for example, steel) or a resin material. One end (the lower end in the figure) of this intake pipe 157 penetrates the top surface 155, and the other end (the upper end in the figure) penetrates a pipe through hole 133b formed in the mounting table 132 and protrudes into the accommodation space 131. Also, the intake pipe 157 is formed with a rectangular cross-sectional shape extending in the depth direction.

[0065] Further, the intake hole 157a in the intake pipe 157 opens in a shape inclined toward the central portion side of the accommodation space 131. Specifically, in the intake pipe 157, among the wall portions forming the intake hole 157a, the height of the wall portion facing the outer side of the mounting table 132 (that is, the right side surface 135 side) is higher than the wall portion facing the central portion side of the accommodation space 131. In other words, the intake pipe 157 is composed of an inclined surface in which the upper end surface of the intake pipe 157 forming the intake hole 157a is inclined toward the central portion side of the mounting table 132. This intake pipe 157 is attached in a state of penetrating the right end portion in the top surface 155 in the drawing. Thereby, the upper space in the support housing 151 is hermetically formed with respect to the accommodation space 131 by the cold air generation space forming body 152.

[0066] 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 by absorbing the heat around the evaporator 162 into the refrigerant. That is, the cold air generator 150 is composed of a heat pump. This evaporator 162 is provided between the jet pipe 156 and the intake pipe 157 in a plan view within the cold air generation space forming body 152.

[0067] The blower 163 is a mechanical device for supplying the air in the cold air generation space forming body 152 to the evaporator 162. This blower 163 is arranged at a position between the evaporator 162 and the intake pipe 157 within the cold air generation space forming body 152 and is provided to send the air in the accommodation space 131 guided by the intake pipe 157 to the evaporator 162.

[0068] The control device 170 is configured by housing a microcomputer composed of a CPU, ROM, RAM, etc. in a housing, comprehensively controls the overall operation of the home delivery item cold storage box 100, and cools the inside of the storage space 131 by executing a comprehensive control program (not shown) stored in advance in a storage device. Specifically, the control device 170 cools the inside of the storage space 131 by controlling the operation of the cold air generator 150. In this case, the wiring (not shown) electrically connecting the control device 170 and the cold air generator 150 is provided via the second housing 114. Further, the control device 170 locks or unlocks the opening / closing door 111 by controlling the operation of the lock mechanism 110d, and controls the lighting or extinguishing of the lighting 118a by controlling the operation of the lighting 118a.

[0069] The control device 170 also includes an operation panel 171, an external operator 172, an opening / closing sensor 173, and a temperature sensor 174, respectively. The operation panel 171 is composed of an input device including a switch group that receives instructions from a user and inputs 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 portion 105 in 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.

[0070] The external operator 172 is an input device for an administrator such as the owner of the home delivery item cold storage 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 operations of the cold air generator 150 and the lock mechanism 110d by operating the external operator 172. Note that the external operator 172 can also be composed of a smartphone or a tablet terminal installed with application software capable of controlling the control device 170 via an Internet line or a wireless LAN line.

[0071] The opening / closing sensor 173 is a detector such as a limit switch that electrically detects the open / closed state of the opening / closing door 111. The temperature sensor 174 is a detector such as a thermocouple that electrically detects the temperature inside the accommodation space 131. Note that the control device 170 includes a power supply unit (not shown) that receives power from an external power source (for example, a household 100V power source) and supplies power to each part such as the intercom 110b, the lighting 118a, the lock mechanism 110d, and the cold air generator 150 that require power. Since this is not directly related to the present invention, the description thereof is omitted. Also, in FIGS. 7, 10, and 11, 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 with shaded hatching.

[0072] (Operation of the Home Delivery Refrigerated Box 100) Next, the operation of the home delivery refrigerated box 100 configured as described above will be described. This home delivery refrigerated box 100 is fixedly installed on the ground in front of the entrance of a house. In this case, the home delivery refrigerated box 100 can be fixed to a foundation such as concrete, wood, or stone fixed to the ground via a fastener such as a bolt. Also, an external power source is connected to the control device 170 of the home delivery refrigerated box 100, and in-house devices are electrically connected to the intercom 110b.

[0073] First, the resident of the house where the home delivery refrigerated box 100 is installed opens the opening / closing door 111, operates the operation panel 171 to activate the control device 170, and instructs the control device 170 to execute the comprehensive control program. In response to this instruction, the control device 170 enters a standby state waiting for an input of a command from the user by executing the comprehensive control program. In this case, the control device 170 controls the operation of the lock mechanism 110d to unlock the opening / closing door 111.

[0074] Next, when the delivery person of the home delivery item WK stores the home delivery item WK in the home delivery item cold storage box 100, the opening / closing door 111 is opened, and the home delivery item WK is placed on the placing table 132 in the storage space 131. Next, after the delivery person operates the operation panel 171 to perform temperature setting in the storage space 131 and locking setting of the opening / closing door 111 for the control device 170, the opening / closing door 111 is closed. Thereby, after detecting that the opening / closing door 111 is closed, the control device 170 controls the operation of the locking mechanism 110d to lock the opening / closing door 111 and controls the operation of the cold air generator 150 to start cooling in the storage space 131. In the present embodiment, the delivery person can set an arbitrary temperature within the range of -30°C to 10°C for the temperature in the storage space 131.

[0075] More specifically, the control device 170 controls the operations of the compressor 160, the condenser 161, the expansion mechanism, and the evaporator 162 to cool the air in the cold air generation space forming body 152 and operates the blower 163 to supply the air in the cold air generation space forming body 152 toward the evaporator 162. That is, the evaporator 162 corresponds to the heat exchanger according to the present invention. Thereby, in the storage space 131, cold air is supplied from the air jet holes 156a of the air jet pipe 156, and the air in the storage space 131 is sucked from the air intake holes 157a of the air intake pipe 157, so that the temperature in the room decreases.

[0076] In this case, in the storage space 131, as shown in FIG. 10, cold air is ejected obliquely upward from the air jet holes 156a of the air jet pipe 156 toward the central portion side of the placing table 132, and the air in the storage space 131 is sucked obliquely downward from the central portion side of the placing table 132 (see the broken line arrows). Thereby, the home delivery item cold storage box 100 can efficiently cool the home delivery item WK and the inside of the storage space 131 by surrounding the home delivery item WK with cold air so as to wrap it from above.

[0077] On one hand, the air in the accommodation space 131 sucked from the intake hole 157a is supplied to the upstream side of the blower 163 in the cold air generation space forming body 152, and then supplied to the evaporator 162 by the blower 163 (see the dashed arrow). Thereby, the delivery goods cold storage box 100 can efficiently cool the air recovered from the accommodation space 131.

[0078] Also, the air supplied to the evaporator 162 is cooled by the evaporator 162 and then supplied to the jet pipe 156 by the blowing of the blower 163 (see the dashed arrow). Thereby, the delivery goods cold storage box 100 can efficiently guide the cold air generated in the accommodation space 131 to the jet pipe 156 and supply it into the accommodation space 131. And the control device 170 controls the operation of the cold air generator 150 based on the detection signal from the temperature sensor 174 so that the temperature in the accommodation space 131 becomes the temperature set by the deliverer.

[0079] Next, when the resident takes out the delivery goods WK from the delivery goods cold storage box 100, the resident operates the external operator 172 to instruct the control device 170 to unlock the opening / closing door 111. Thereby, the resident can open the opening / closing door 111 and take out the delivery goods WK in the accommodation space 131. In this case, the resident may operate the operation panel 171 to stop the operation of the cold air generator 150 with respect to the control device 170, or may also stop the startup state of the control device 170.

[0080] Also, the resident can continue to keep the operating state to precool the inside of the accommodation space 131 for the delivery of the next delivery goods WK. In this case, the inside of the cold air generation space forming body 152 communicates with the outside air only through the jet pipe 156 and the intake pipe 157, but the jet pipe 156 is ejecting cold air, and the cold air ejected by the jet pipe 156 is actively supplied to the intake pipe 157. For this reason, the rise in temperature due to the entry of outside air is suppressed inside the cold air generation space forming body 152. Thereby, the inside of the accommodation space 131 is cooled early after a new delivery goods WK is placed and the opening / closing door 111 is closed.

[0081] As can be understood from the above operation description, according to the above embodiment, in the storage space 131 for storing the home delivery item WK, the air jet holes 156a and the air intake holes 157a are respectively provided at the edges of the placement table 132 on which the home delivery item WK is placed. That is, in the home delivery item cold storage box 100 according to the present invention, since the air jet holes 156a and the air intake holes 157a are respectively provided at the edges where it is difficult to place the home delivery item WK on the placement table 132, the jet of cold air from the air jet holes 156a and the suction of cold air from the air intake holes 157a are hardly inhibited, and the change in the air flow due to the placement position of the home delivery item WK on the placement table 132 can be suppressed, and the inside of the storage space 131 can be stably cooled.

[0082] Furthermore, in the implementation of the present invention, it is not limited to the above embodiment, and various changes are possible as long as the object of the present invention is not deviated from. In the description of each of the following modification examples, the same reference numerals are given to the same parts as those in the above embodiment in the reference drawings, and the description of the overlapping parts is omitted.

[0083] For example, in the above embodiment, the air jet holes 156a are provided on the left side in the drawing in the storage space 131, and the air intake holes 157a are provided on the right side in the drawing in the storage space 131. However, the air jet holes 156a and the air intake holes 157a only need to be provided at the edges of the placement table 132. Therefore, the air jet holes 156a can be provided on the right side in the drawing in the storage space 131, and the air intake holes 157a can be provided on the left side in the drawing in the storage space 131. That is, by installing the blower 163 so that the blowing direction is reversed, the air jet holes 156a can be provided on the right side in the drawing in the storage space 131, and the air intake holes 157a can be provided on the left side in the drawing in the storage space 131.

[0084] In addition, the air jet holes 156a and the air intake holes 157a can also be provided at the edge on the opening / closing door 111 side and the edge on the back side in the depth direction of the mounting table 132. Further, the air jet holes 156a and the air intake holes 157a can be provided at adjacent edges in addition to being provided at the edges facing each other as in the above-described embodiment. Also, at least one of the air jet holes 156a and the air intake holes 157a can be provided at the four edges of the mounting table 132.

[0085] In the above-described embodiment, the air jet holes 156a and the air intake holes 157a are provided at positions protruding from the surface of the mounting table 132, respectively. However, the air jet holes 156a and the air intake holes 157a can also be provided at positions flush with the surface of the mounting table 132 or at positions below the same surface.

[0086] In the above-described embodiment, the air jet holes 156a and the air intake holes 157a are formed in a completely open state without being blocked at all. However, the air jet holes 156a and the air intake holes 157a can also be covered with a net-like member or a louver in order to prevent foreign matter from entering the air jet pipe 156 and the air intake pipe 157.

[0087] In the above-described embodiment, the air jet holes 156a and the air intake holes 157a are formed on an inclined surface so as to open toward the center side of the accommodation space 131, respectively. However, the air jet holes 156a and the air intake holes 157a can be formed such that at least one of them opens toward the center side of the accommodation space 131. Also, the air jet holes 156a and the air intake holes 157a can be formed to face a direction other than the center side of the accommodation space 131, for example, upward (toward the top surface 137) or in the horizontal direction (the left side surface 134, the right side surface 135, the back surface 136, and the opening / closing door 111 side).

[0088] In addition, when the air jet holes 156a and the air intake holes 157a are formed on an inclined surface so as to open toward the center side of the accommodation space 131 as in the above embodiment, as shown in FIG. 11, even when a large-sized delivery item WK is directly placed on the air jet holes 156a and the air intake holes 157a, it is possible to prevent the air jet holes 156a and the air intake holes 157a from being blocked by the delivery item WK and ensure the jet and suction of cold air. In this case, the air jet holes 156a and the air intake holes 157a can jet cold air to the bottom surface side of the delivery item WK and collect the air on the same bottom surface side.

[0089] Further, in the above embodiment, the cold air generator 150 is configured to include a cold air generation space former 152. Specifically, the cold air generator 150 is configured to cover the upper stage of the support housing 151 with the housing 153 and the cold air circulation lid 154. However, the cold air generator 150 can be configured by omitting the cold air generation space former 152. Specifically, the cold air generator 150 can be configured by omitting the housing 153.

[0090] Also, in the above embodiment, the evaporator 162 is disposed between the air jet pipe 156 and the air intake pipe 157, and the blower 163 is disposed on the air intake pipe 157 side with respect to the evaporator 162. However, the blower 163 only needs to be arranged in a direction to send the air in the cold air generation space former 152 from the air intake pipe 157 side to the air jet pipe 156 side. Therefore, the blower 163 can also be disposed on the air jet pipe 156 side with respect to the evaporator 162.

Explanation of reference numerals

[0091] WK... Delivery item, 100... Delivery item cold storage box, 101... First housing, 102... Right side surface, 102a... Vent, 103... Front surface, 103a - 103d... Openings, 104a - 104d... Mounting plates, 105... Upper accommodation part, 105a... Mounting plate, 106... Mail receptacle, 107... Bottom surface, 110... Upper cover, 110a... Opening, 110b... Intercom, 110c... Nameplate, 110d... Lock mechanism, 111... Opening and closing door, 111a... Handle, 112... Lower cover, 113... Base, 114... Second housing, 115... Left side, 115a... Ventilation hole, 116... Pressing body, 117... Left side spacer, 117a... Air layer, 118... Top surface, 118a... Lighting, 120... Rear cover, 120a... Opening, 121... Closing plate, 122... Opening, 123... Pressing body, 124... Rear spacer, 124a... Rear air layer, 130... Accommodation space former, 131... Accommodation space, 132... Mounting table, 133a, 133b... Pipe through holes, 134... Left side, 135... Right side, 136... Rear, 137... Top surface, 140... Opening edge, 141... Front spacer, 142... Packing, 142a... Bottom air layer, 143... Right side spacer, 143a... Right side air layer, 144... Top surface spacer, 144a... Top surface air layer, 150... Cold air generator, 151... Support housing, 152... Cold air generation space former, 153... Container, 154... Cold air circulation cover, 155... Top surface, 156... Jet pipe, 156a... Jet holes, 157... Intake pipe, 157a... Intake holes, 160... Compressor, 161... Condenser, 162... Evaporator, 163... Blower, 170... Control device, 171... Operation panel, 172... External operator, 173... Opening and 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, a cold air generator provided below the mounting table for generating cold air; an air outlet that opens into the storage space and ejects the cold air generated by the cold air generator; an intake hole that opens into the storage space and guides air in the storage space to the cool air generator; 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 parcel cooler box, characterized in that the top surface is constructed separately from the placement table and is arranged adjacent to and below the placement section.

2. In the parcel cooler box according to claim 1, A home delivery cooler box characterized in that an air layer is provided between the placement base and the top surface.

3. In the parcel cooler box according to claim 1, The blowhole is a tubular shape penetrating the mounting table made of the thermal insulating material and opening into the storage space, The air intake hole is A parcel cooler box characterized in that it is formed in a tubular shape that penetrates the placement base made of the insulating material and opens into the storage space.

4. In the parcel cooler box according to claim 1, A parcel cooler box characterized in that it is provided with gaskets that cover the periphery of each of the tubular air outlets and air intakes formed between the placement base and the top surface.

5. The home delivery cooler box according to claim 1, further comprising: 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 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.

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