Locker-type cooling storage

Abstract

To inhibit deflection of a heat insulation box body at low costs.SOLUTION: A locker style cooling storage 10 includes: a heat insulation box body 11 having a front surface opening 11S and a storage room 12 for storing stored objects; a cooling device 16 for cooling the storage room 12; a door 13 for opening or closing the front surface opening 11S; and a lock device 70 for locking the door 13. A side wall part 43 of a heat insulation wall forming the heat insulation box body 11 has a crank shape on a cross section in a horizontal direction.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present technology relates to a locker-type cooling storage.

Background Art

[0002] Conventionally, a locker-type cooling storage capable of locking while cooling and storing goods such as food is known, and an example thereof is described in Patent Document 1. The locker-type cooling storage described in Patent Document 1 is provided with three storage chambers in the vertical direction in the main body, and two of the storage chambers are controlled to a refrigeration temperature by a cooling device. In addition, it is common to install a plurality of locker-type cooling storages side by side with the doors facing forward. According to the technology described in Patent Document 1, even when a plurality of units are installed adjacent to each other, it is possible to smoothly open and close the outer door.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in order to increase the storage capacity of the locker-type cooling storage, it is conceivable to reduce the thickness of the heat insulating wall constituting the main body (heat insulating box). However, if the heat insulating wall is made thin, it is likely to be insufficient in strength and prone to bending and warping. In particular, when a plurality of units are installed side by side as described above, the influence of the bending and warping generated in each unit also spreads to other adjacent locker-type cooling storages, leading to a large bending and causing deformation of the heat insulating box. In addition, gaps are likely to occur between adjacent locker-type cooling storages due to bending and warping. On the other hand, in such a situation, if a reinforcing member is added to improve the strength, the manufacturing cost and weight will increase in reality.

[0005] The present technology has been completed based on the above circumstances, and aims to suppress the deflection of the heat-insulating box at low cost.

Means for Solving the Problems

[0006] The locker-type cooling storage refrigerator according to the present technology includes a heat-insulating box having a front opening and a storage chamber for accommodating items to be stored, a cooling device for cooling the storage chamber, a door for opening and closing the front opening, and a locking device for locking the door. The side wall portion of the heat-insulating wall constituting the heat-insulating box has a crank-shaped cross section in the horizontal direction.

[0007] By making the side wall portion of the heat-insulating wall constituting the heat-insulating box have a crank-shaped cross section, the deflection of the side wall portion can be suppressed and the strength can be increased compared to the case where the side wall portion has a flat plate shape. As a result, the deflection of the entire heat-insulating box can be suppressed and the strength can be increased. Further, in this way, the strength can be increased without using a reinforcing member, so that the deflection of the heat-insulating box can be suppressed without increasing the cost.

[0008] Further, the side wall portion may protrude toward the side opposite to the storage chamber and have a protruding portion that forms a part of the crank shape. A duct may be provided on the storage chamber side of the protruding portion, which serves as a flow path through which air circulating between the storage chamber and the cooling device flows. In this way, the protruding portion can easily embody the side wall portion having a crank-shaped cross section. Further, since a depression is formed on the storage chamber side of the protruding portion, by providing a duct in this portion, the duct can be provided in a space-saving manner.

[0009] Further, the surface of the duct on the storage chamber side may be substantially flush with the surface of the side wall portion on the storage chamber side other than the protruding portion. In this way, the duct does not protrude toward the storage chamber side from the side wall portion, and when viewed from the inside of the storage chamber, the duct and the side wall portion are flush and smoothly connected. As a result, when the user accommodates items to be stored in the storage chamber, it becomes easier to effectively utilize the space in the storage chamber.

[0010] Further, on the surface of the side wall portion on the storage chamber side, shelves for partitioning the storage chamber into a plurality of compartments are attached, and the duct may include a plurality of ventilation holes opening toward the storage chamber along the vertical direction. By doing so, the storage chamber can be partitioned into a plurality of compartments by the shelves to form a plurality of storage spaces. Also, even in such a case, the variation in temperature between the storage spaces can be suppressed by the ventilation holes.

[0011] Further, two side wall portions having the crank shape are provided in pairs in the left - right direction, and the ducts are respectively provided for the two side wall portions. The first duct provided for one of the side wall portions is a flow path for sucking the air in the storage chamber and flowing it toward the cooling device, and the second duct provided for the other side wall portion may be a flow path for blowing out the air cooled by the cooling device into the storage chamber. By doing so, ducts can be respectively provided for the two side wall portions. One duct (the first duct) can be used to suck the air in the storage chamber and flow it toward the cooling device, and the other duct (the second duct) can be used to blow out the air cooled by the cooling device into the storage chamber. Also, by using the ducts of the left - and - right side wall portions as air flow paths, there is no need to provide a duct on the rear wall portion. As a result, it becomes easier to be diverted when manufacturing a derivative product that adds a rear opening and a door for opening and closing it.

[0012] Further, the locking device may be provided in front of the protruding portion on the outside of the cabinet of the side wall portion. By doing so, the inside of the cabinet of the locking device is covered by the side wall portion which is a heat - insulating wall. As a result, the situation where condensation occurs in the locking device can be suppressed.

[0013] Further, a cover member may be provided outside the cabinet with a predetermined gap from the protruding portion and covering at least the protruding portion. In the manufacturing process of the heat-insulating cabinet body, during the process of solidification of the filled heat-insulating material, warping may occur on the outer surface of the protruding portion outside the cabinet due to the foaming pressure. By covering such warping with a cover member with a gap, the outer side surface of the locker-type cooling storage can be reliably flattened. As a result, when a plurality of locker-type cooling storages are installed adjacent to each other, they can be arranged without gaps. Further, according to the cover member, the protruding portions of the side wall portions of adjacent units can be prevented from being in close contact with each other. Although the protruding portion is a part of the heat-insulating wall, depending on the heat-insulating performance, there is a concern that condensation may occur on the contact surface if the protruding portions are in close contact with each other. By making the protruding portions non-contact with each other by the cover member, condensation can be suppressed.

[0014] Further, on the outer side of the cabinet of the side wall portion, a columnar panel member extending along the vertical direction is provided behind the protruding portion, and a storage space capable of storing a member of the same size as the locking device may be provided between the panel member and the side wall portion. In this way, when manufacturing a derivative product having a rear opening, a locking device for locking a second door for opening and closing the rear opening can be arranged in the storage space. As a result, it becomes easy to divert to derivative products.

[0015] Further, the panel member may be connected to the heat-insulating cabinet body. In this way, the panel member can be firmly fixed.

[0016] Further, the side wall portions having the crank shape are provided in pairs on the left and right, the locking device is provided outside the cabinet on one of the side wall portions, and in front of the protruding portion outside the cabinet on the other side wall portion, a columnar second panel member extending along the vertical direction is provided, and a storage space capable of storing a member having the same size as the locking device may be provided between the second panel member and the other side wall portion. In this way, when a swing-type door is used as the door, when manufacturing a derivative product that changes the opening direction of the door (for example, a specification change product from a right-opening type to a left-opening type), the locking device can be accommodated in the storage space between the second panel member and the other side wall portion according to the change. As a result, it becomes easy to divert to derivative products.

Effect of the Invention

[0017] According to the present technology, the deflection of the heat insulation cabinet can be suppressed at low cost.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

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Figure 10

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Figure 13

Figure 14

Figure 15

Figure 16

Mode for Carrying Out the Invention

[0019] <Embodiment 1> The locker-type refrigerator 10 (an example of a locker-type cooling storage) according to Embodiment 1 will be described with reference to FIGS. 1 to 16. The reference numerals F, Rr, L, R, U, and D shown in each figure indicate the front, rear, left, right, upper, and lower in the width direction (left-right direction) when viewed from the front, and the vertical direction (up-down direction) in the front-rear direction of the locker-type refrigerator 10, respectively. However, the above directions are merely defined for convenience and should not be construed limitatively. Also, for a plurality of identical members, one member may be assigned a reference numeral, and the reference numerals of other members may be omitted.

[0020] As shown in FIGS. 1 and 2, the locker-type refrigerator 10 has an overall vertically long substantially rectangular parallelepiped shape, and a plurality of units are arranged adjacent to each other with the door 13 facing the front and used. The locker-type refrigerator 10 is installed, for example, at the storefront of a store or inside a shopping mall, and can store luggage such as food and medicines (an example of an object to be stored) in a locked state while cooling them. The locker-type refrigerator 10 is used for a service user (e.g., a purchaser) to receive the luggage stored by a service provider (e.g., a store clerk or a delivery person), but the use is not limited. For example, it may be used by a service user to temporarily cool and store luggage. Also, depending on the use and installation location, only one unit instead of a plurality of units of the locker-type refrigerator 10 may be installed and used. Hereinafter, the service provider and those permitted by the service provider are referred to as administrators, and the service provider is simply referred to as a user.

[0021] Among a plurality of adjacent locker-type refrigerators 10, one of them is provided with an operation terminal 80 as shown in FIG. 1. The operation terminal 80 is an information terminal provided with at least one of input means 80A such as an operation panel or reading means 80B such as a barcode reader, and known terminals such as tablet-type terminals and computers are used. The user can unlock or lock the locking device 70 of the door 13 described later by inputting a password into the operation panel or having the barcode reader read a two-dimensional barcode. The operation terminal 80 may be installed around separately from the locker-type refrigerator 10, and is not required when the locking device 70 is not an electronic lock. The basic configuration of each unit is the same except for the operation terminal 80. Hereinafter, a locker-type refrigerator 10 without the operation terminal 80 shown in FIG. 2 will be described in detail as an example.

[0022] As shown in FIGS. 2 to 4, the locker-type refrigerator 10 generally includes a heat-insulating box body 11 which is a storage body, a plurality of doors 13 for opening and closing the front opening 11S of the heat-insulating box body 11, a plurality of locking devices 70 provided for each door 13 to lock the door 13, a machine room 15 arranged above the heat-insulating box body 11, a cooling device 16 for cooling the storage room 12 formed in the heat-insulating box body 11, and legs 14 placed on the installation floor surface so as to support these from below.

[0023] As shown in FIGS. 3 and 4, the heat-insulating box body 11 has a structure in which a heat-insulating material 11C made of foamed resin is filled between an outer box 11A assembled in a box shape from a metal plate such as stainless steel and an inner box 11B. The heat-insulating box body 11 is composed of a heat-insulating wall having a ceiling wall portion 41, a bottom wall portion 42, a left side wall portion 43, a right side wall portion 44, and a rear wall portion 45. An opening is provided in the ceiling wall portion 4, and a heat-insulating ceiling cover body 46 is fitted into this opening from the machine room 15 side. A cooler duct 23 is stretched below the ceiling cover body 46, thereby forming a cooler chamber 20. Further, a top panel 51 having a flat surface parallel to the ceiling wall portion 41 is attached below the cooler duct 23. A left duct 53 is attached to the left side wall portion 43 along the vertical direction. Also, a right duct 54 is attached to the right side wall portion 44 along the vertical direction. And the portion surrounded by the top panel 51, the left side wall portion 43, the left duct 53, the right side wall portion 44, the right duct 54, and the bottom wall portion 42 is a storage chamber 12 for accommodating the objects to be stored.

[0024] As shown in FIGS. 3 and 4, the storage chamber 12 occupies most of the internal space (inside the storage) of the heat-insulating box body 11 and is partitioned vertically into a plurality (specifically, four) of storage spaces 12A, 12B, 12C, 12D by a plurality (specifically, four) of shelf nets 48. As shown in FIGS. 4 and 5, the shelf nets 48 are attached to the surfaces of the left side wall portion 43 and the right side wall portion 44 on the storage chamber 12 side, and the objects to be stored can be placed thereon. More specifically, the wire shelf 48 is attached by shelf receivers 48A to portions of the left side wall portion 43 where the left duct 53 is not provided (portions other than the protruding portion 43A described later) and portions of the right side wall portion 44 where the right duct 54 is not provided (portions other than the protruding portion 44A described later). By attaching the shelf receivers 48A to these portions, it becomes easier to ensure the strength of the wire shelf 48. The shelf receivers 48A cover the outer periphery of a part of the wire constituting the shelf net 48 and are fixed to the left side wall portion 43 and the right side wall portion 44 by non-generic special-shaped screws. As a result, the user cannot easily remove the wire shelf 48.

[0025] As shown in Figures 4 and 5, a plurality of (specifically, four) horizontal frames 49 are provided on the front surface of the insulating box 11. The horizontal frames 49 divide the front opening 11S into areas of a size corresponding to the storage spaces 12A, 12B, 12C, and 12D. The horizontal frames 49 are solid rectangular columnar members filled with insulating material, and extend in the left-right direction from the left side wall 43 to the right side wall 44. The vertical height of the upper surface of the horizontal frames 49 is approximately the same as the upper surfaces of the top three net shelves 48.

[0026] As shown in Fig. 4, a plurality of doors 13 (specifically, four doors) are provided so that each portion of the front opening 11S partitioned by the horizontal frame 49 can be opened and closed. Each door 13 is a swing-type right-opening insulated door, and the right side of the door 13 is attached to the insulated box body 11 by a hinge member 13A (Fig. 1). As shown in Figs. 6 and 7, each door 13 is provided with a concave pull tab 13B on the front side of the left side portion, and an engagement plate 13C on the rear surface of the left side portion that engages with the locking device 70. The engagement plate 13C is a plate-like member that protrudes rearward, and an engagement hole 13C1 into which the movable rod body 70B of the locking device 70 is inserted is formed at the tip of the engagement plate.

[0027] As shown in FIG. 7, the locking device 70 is provided at the rear of the left side of the door 13. The locking device 70 is provided on the outside of the left side wall 43, being housed between the left side wall 43 and a first left corner panel member 72 described later. As a result, the inside of the locking device 70 is covered by the left side wall 43, which is a heat-insulating wall. As a result, it is possible to prevent condensation from occurring on the locking device 70. The locking device 70 includes a vertically long box-shaped main body 70A and a movable rod 70B. An insertion hole 70A1 that extends elongatedly toward the rear is provided on the front surface of the main body 70A, and the engagement plate 13C of the door 13 is inserted into the insertion hole 70A1. The movable rod 70B is provided at a position where it can be inserted into the engagement hole 13C1 of the engagement plate 13C when the door 13 is closed, and can move in the vertical direction.

[0028] The locking device 70 is an electronic lock. When it receives an unlocking signal from the operation terminal 80, the movable rod 70B moves upward and is pulled out from the engagement hole 13C1 of the door 13, enabling the door 13 to be opened. Also, when it receives a locking signal from the operation terminal 80, the movable rod 70B moves downward and is inserted into the engagement hole 13C1 of the door 13, putting the door 13 in a closed state where it cannot be opened. However, the locking device 70 may have an auto-lock function that automatically locks when the door 13 is closed to prevent accidental unlocking. The type of the locking device is not limited and it does not have to be an electronic lock. Furthermore, the locker-type refrigerator 10 may be equipped with an unlocking device that allows the administrator to unlock all the locking devices 70 at once.

[0029] As shown in FIGS. 2 to 4, the machine room 15 is arranged above the heat-insulating box body 11 and is covered by a front panel 15A, a left side panel 15B, and a right side panel 15C at the front, left, and right respectively. The upper and rear sides of the machine room 15 are open to take in outside air and release the heat inside the machine room 15. The machine room 15 houses, in addition to the compressor 17, the condenser 18, and the condenser fan 19 that constitute the cooling device 16, a control device 60 (electrical box, power supply unit), an operation box 61, and a relay machine 62 for the locking device, etc.

[0030] As shown in FIGS. 3 and 4, the cooling device 16 includes a compressor 17, a condenser 18, an expansion valve (capillary tube), and a cooler 21 (evaporator) in a cooler chamber 20 described later. These are connected in this order by refrigerant pipes and the refrigerant is circulated to form a known refrigeration circuit (refrigeration cycle).

[0031] As shown in FIGS. 2 to 4, the control device 60 is arranged at the rear side of the machine room 15. The control device 60 includes a circuit for controlling the operation of the locker-type refrigerator 10 and supplying power, etc., and these are housed in a horizontally long box body.

[0032] As shown in FIG. 4, the operation box 61 is arranged on the rear side of the front panel 15A and includes a display unit 61A, an operation unit 61B, and an operation circuit board. The display unit 61A and the operation unit 61B are provided on the front surface of the operation box 61, and the internal temperature of the storage chamber 12 and the like displayed on the display unit 61A can be visually recognized from the outside through an opening provided in a part of the front panel 15A (FIG. 2). The operation unit 61B is a button for setting and changing the cooling target temperature of the storage chamber 12 and the like. The operation unit 61B can be operated in a state where the administrator has removed the front panel 15A. The display unit 61A and the operation unit 61B are connected to the control circuit board of the control device 60 via the operation circuit board.

[0033] As shown in FIG. 2, the relay machine 62 for the locking device is arranged on the left side (machine room 15 side) of the right side panel 15C, and the lead-out wiring from each locking device 70 is assumed to be connected thereto. The relay machine 62 for the locking device is communicatively connected to the operation terminal 80, and the unlocking signal and the like from the operation terminal 80 are transmitted to the locking device 70 via the relay machine 62 for the locking device.

[0034] As shown in FIGS. 3 and 4, the cooler duct 23 is provided so as to cover the upper part (ceiling lid 46) of the heat insulation box 11 from below, and a cooler chamber 20 is formed between the cooler duct 23 and the ceiling lid 46. Inside the cooler chamber 20, a cooler 21, a circulation fan 24, an indoor temperature sensor, etc. are accommodated. The circulation fan 24 circulates the air in the storage chamber 12 and passes it through the cooler 21. The cooler duct 23 has a shape that slopes downward from the left side wall 43 toward the right side wall 44, and the inclination angle of the left side portion is formed larger than that of the right side portion. An air suction port 25 for the air sucked from the storage chamber 12 into the cooler chamber 20 is formed in the left side portion of the cooler duct 23, and the circulation fan 24 is provided so as to cover the suction port 25. The cooler 21 is provided in the right side portion of the cooler duct 23 where the inclination angle is small. The downwardly inclined tip (right end) of the cooler duct 23 serves as an air outlet 26 for the cooler chamber 20. The indoor temperature sensor is provided between the circulation fan 24 and the cooler 21, and the temperature is detected when the air in the storage chamber 12 sucked by the circulation fan 24 hits the indoor temperature sensor.

[0035] Further, the cooler duct 23 also serves as an in - store drain pan. As shown in FIG. 3, a drain hose 31 is connected to a part of the right end from below. The drain hose 31 is embedded in the right side wall 44 and extends downward, passing through the bottom wall 42 from within the right side wall 44 and connecting to an out - of - store drain pan 32 provided below the bottom wall 42.

[0036] As shown in FIGS. 3 and 4, the left duct 53 is provided along the left side wall portion 43 of the heat insulation box body 11 and extends in the vertical direction. The inside of the left duct 53 (the space surrounded by the left side wall portion 43 and the left duct 53) serves as a flow path for sucking the air in the storage chamber 12 and flowing it toward the suction port 25 of the cooler duct 23 (and thus the cooler 21 in the cooler chamber 20). The left duct 53 is formed by bending a metal plate such as a stainless steel plate into a predetermined shape, and extends downward from the upper panel 51 to the vicinity of the lowermost wire shelf 48. The upper and lower portions of the left duct 53 are open. The upper opening of the left duct 53 communicates with the space between the cooler duct 23 and the upper panel 51, and the upper end portion 53A of the surface of the left duct 53 on the storage chamber 12 side is connected to the left end portion of the upper panel 51. The lower opening of the left duct 53 communicates with the lower portion of the storage chamber 12. Further, the left duct 53 is provided with a number of inflow holes 53B (an example of ventilation holes) for sucking the air in the storage chamber 12 into the left duct 53. The number of inflow holes 53B is provided so as to be arranged in a lattice pattern of five at a constant pitch in the vertical direction and the front-rear direction.

[0037] As shown in FIG. 3, the right duct 54 is provided along the right side wall portion 44 at a position facing the left duct 53 and extends in the vertical direction. The inside of the right duct 54 (the space surrounded by the right side wall portion 44 and the right duct 54) serves as a flow path for flowing the cold air from the cooler 21 blown out from the blowout port 26 of the cooler duct 23 toward the storage chamber 12. The right duct 54 is also formed by bending a metal plate such as a stainless steel plate into a predetermined shape, and extends downward from the upper panel 51 to the vicinity of the lowermost wire shelf 48. The upper and lower portions of the right duct 54 are open. The upper opening of the right duct 54 communicates with the blowout port 26 of the cooler duct 23, and the lower opening communicates with the lower portion of the storage chamber 12. Further, the right duct 54 is provided with a number of outflow holes 54B (an example of ventilation holes) for blowing out the cold air flowing into the right duct 54 into the storage chamber 12. The number of outflow holes 54B is provided so as to be arranged in a lattice pattern of five at a constant pitch in the vertical direction and the front-rear direction.

[0038] The cooling operation is performed by driving the compressor 17, the condenser fan 19, and the circulation fan 24. In the cooling operation, the air in the storage chamber 12 flows into the left duct 53 from the inlet hole 53B and the lower end 53C of the left duct 53, rises in the left duct 53, and flows out from the upper opening of the left duct 53. The air flowing out from the left duct 53 is sucked into the suction port 25 of the cooler duct 23 through the space between the cooler duct 23 and the upper panel 51, and is cooled by heat exchange in the process of passing through the cooler 21 to become cold air. The cold air from the cooler 21 is blown out from the blowout port 26, flows into the right duct 54, descends in the right duct 54, and is blown out into the storage chamber 12 from the outlet hole 54B and the lower end 54C of the right duct 54. In this way, the air in the storage chamber 12 is cooled. Further, the defrosting water from the cooler 21 and the like generated by the defrosting operation appropriately performed after a predetermined cooling operation time or the like is received by the cooler duct 23 and then drained to the outdoor drain pan 32 through the drain hose 31.

[0039] As described above, by using the left duct 53 and the right duct 54 provided on the left and right side wall portions as air flow paths, it is not necessary to provide a duct serving as an air flow path on the rear wall portion 45. As a result, when manufacturing a derivative product that adds a rear opening and a door for opening and closing the same, it becomes easier to divert it to the derivative product. Further, by providing a plurality of ventilation holes (inlet hole 53B, outlet hole 54B) along the vertical direction in each of the ducts 53, 54, even when the storage chamber 12 is partitioned into a plurality of storage spaces 12A, 12B, 12C, 12D, the variation in temperature between the storage spaces can be suppressed, and cooling can be performed while maintaining the temperature more uniformly.

[0040] Next, the cross-sectional shape of the left side wall portion 43 and its positional relationship with the left duct 53 will be described in detail. As shown in FIG. 8, the left side wall portion 43 has a protruding portion 43A at the central portion in the front-rear direction, and its cross-section (horizontal cross-section) forms a crank shape due to the step caused by the protruding portion 43A. By forming the left side wall portion 43 into a cross-sectional crank shape, the deflection of the left side wall portion 43 can be suppressed and the strength can be increased compared to the case where it has a flat plate shape without a step. As a result, the deflection of the entire heat insulation box body 11 can be suppressed and the strength can be increased. In addition, since the strength can be increased without using a reinforcing member, the deflection of the heat insulation box body 11 can be suppressed without increasing the cost.

[0041] As shown in FIGS. 8 and 9, the protruding portion 43A protrudes toward the side opposite to the storage chamber 12 (outside the storage). More specifically, the central portion of the inner box 11B constituting the left side wall portion 43 protrudes toward the outside of the storage, and thereby an inner box recessed portion 11B1 is formed on the inner side of the storage of the inner box 11B. Further, on the outer box 11A constituting the left side wall portion 43, outer box recessed portions 11A1 and 11A2 that are recessed toward the inner side of the storage are formed in front of and behind the inner box recessed portion 11B1. By filling the heat insulating material 11C between the inner box 11B having the inner box recessed portion 11B1 and the outer box 11A having the two outer box recessed portions 11A1 and 11A2, the left side wall portion 43 is formed into a cross-sectional crank shape having the protruding portion 43A.

[0042] As shown in FIGS. 8 and 9, the left duct 53 is provided inside the storage of the protruding portion 43A so as to cover the inner box recessed portion 11B1 of the inner box 11B. The left duct 53 is formed in a substantially U-shaped cross section so as to correspond to the protruding height (depth of the inner box recessed portion 11B1) L43A of the protruding portion 43A and the width W43A in the front-rear direction (width of the inner box recessed portion 11B1). The surface 53D of the left duct 53 on the storage chamber 12 side is substantially flush with the inner surface 43D inside the storage other than the protruding portion 43A of the left side wall portion 43. That is, the left duct 53 does not protrude inside the storage from the left side wall portion 43, and when viewed from the inside of the storage, the left duct 53 and the left side wall portion 43 are in a flat connection state. By providing the left duct 53 in this way, the left duct 53 can be provided in a space-saving manner, and it becomes easier for the user to effectively utilize the space when storing the items to be stored in the storage chamber 12.

[0043] As shown in FIGS. 8 and 9, left corner panel members 72 and 73 are provided in the outer box recessed portions 11A1 and 11A2 of the outer box 11A, respectively. The left corner panel members 72 and 73 are provided in front of and behind the protruding portion 43A on the outside of the storage of the left side wall portion 43, respectively, and cover the outer box recessed portions 11A1 and 11A2, respectively, and constitute the left front corner portion and the left rear corner portion of the locker-type refrigerator 10.

[0044] As shown in FIG. 10, the left corner panel members 72 and 73 form columns extending along the vertical direction. The left corner panel members 72 and 73 are connected to the side wall portion 43 and fixed by screwing, and are firmly fixed to the heat insulation box body 11. The two left corner panel members 72 and 73 have the same basic shape and size, and are formed by bending a metal plate such as a stainless steel plate into a predetermined shape. The left corner panel members 72 and 73 have a substantially U-shaped cross section, and the right side (inside the storage) is open. A locking device 70 is accommodated between the first left corner panel member 72 and the left side wall portion 43. The first left corner panel member 72 is provided with an opening 72A for exposing the front surface of the accommodated locking device 70. In this way, the outer box recessed portion 11A1 of the outer box 11A can be effectively utilized, and the locking device 70 can be provided in a space-saving manner.

[0045] In addition, between the second left corner panel member 73 and the left side wall portion 43, an accommodation space capable of accommodating a member of the same size as the locking device 70 is provided. In this way, when manufacturing a derivative product further provided with a rear opening, a locking device for the second door that opens and closes the rear opening can be accommodated in the accommodation space. That is, it becomes easy to divert to a derivative product (so-called pass-through type product) provided with a rear opening in addition to the front opening 11S. As an application of such a derivative product, for example, it is conceivable that the front door 13 is used for opening and closing by the user, and the second rear door is used for opening and closing by the administrator.

[0046] The right side wall portion 44, the right duct 54, and the right corner panel members 74, 75 are provided symmetrically left and right so as to be paired with the above-described left side wall portion 43, the left duct 53, and the left corner panel members 72, 73 as shown in FIGS. 8 to 10, and duplicate explanations are omitted. The right side wall portion 44 has a crank shape symmetrical to the left side wall portion 43 and has a protruding portion 44A at the central portion in the front-rear direction. In addition, in the outer box 11A constituting the right side wall portion 44, outer box recessed portions 11A3 and 11A4 that are recessed toward the inside of the storage are formed in front of and behind the inner box recessed portion 11B2. Between the first right corner panel member 74 and the right side wall portion 43, and between the second right corner panel member 75 and the right side wall portion 43, accommodation spaces capable of accommodating members of the same size as the locking device 70 are respectively provided. In this way, when manufacturing a derivative product with the door 13 being a left-opening type or a derivative product further provided with a rear opening, the locking device can be accommodated in the accommodation space.

[0047] Among the outer box 11A, the portions constituting the left side wall portion 43, the right side wall portion 44, and the rear wall portion 45 are composed of an outer left plate 91, an outer right plate 92, an outer rear plate 93, an outer left front plate 94, and an outer right front plate 95, as shown in FIG. 11. The lower ends of the outer left plate 91 and the outer right plate 92 are connected to an outer bottom plate 96 that constitutes the bottom wall portion 42 of the outer box 11A, as shown in FIG. 12. Also, the upper ends of the outer left plate 91 and the outer right plate 92 are connected at the front side portion by a first connecting frame 97 and at the rear side portion by a second connecting frame 98. Thereby, the deflection in the left - right direction is suppressed.

[0048] The outer bottom plate 96 has a bottom plate body 96A, two raised portions 96B, and four protruding pieces 96C, as shown in FIGS. 12 and 13. The bottom plate body 96A is integrally formed by hemming and bending a thin stainless - steel plate. The raised portions 96B extend in a hollow columnar shape in the left - right direction and are provided in pairs before and after the bottom plate body 96A. The raised portion 96B has a U - shaped cross - section and forms a hollow cylindrical body 100 with a rectangular cross - section by fastening to the bottom plate body 96A. A plurality of openings 96B1 are formed in the raised portion 96B so that a heat insulating material 11C is filled inside. According to the raised portion 96B, the deflection of the bottom wall portion 42 can be suppressed and the strength can be improved. The protruding pieces 96C protrude upward and are respectively fastened to the lower ends of the outer left plate 91 and the outer right plate 92. Thereby, the strength of the heat insulating box body 11 can be further improved. Two protruding pieces 96C are provided at each of the left and right ends of each raised portion 96B. Also, inside the hollow cylindrical body 100, leg bases 99 (FIG. 14) for fixing the legs 14 of the locker - type refrigerator 10 are inserted and fastened. A total of four leg bases 99 are provided, one at each of the left and right ends of the hollow cylindrical body 100. By providing the leg bases 99, the strength of the legs 14 can be improved.

[0049] Incidentally, in the manufacturing process of the heat-insulating box body 11, during the process of solidification of the heat-insulating material 11C filled between the outer box 11A and the inner box 11B, due to the foaming pressure, the outer box 11A may slightly bulge outward and warp may occur. When a plurality of locker-type refrigerators 10 are installed adjacent to each other, there is a concern that a gap may be generated between adjacent units due to this warp. Therefore, as shown in FIGS. 15 and 16, the locker-type refrigerator 10 is provided with a cover member 56 with a predetermined gap G1 (about 1 to 2 mm) left outside the cabinet on the protruding portion 44A of the right side wall portion 44. The cover member 56 is an exterior plate that covers substantially the entire right side surface of the locker-type refrigerator 10, and is formed in a substantially U-shaped cross-section by bending a metal plate such as a stainless steel plate into a predetermined shape. The cover member 56 covers the right side panel 15C surrounding the right side of the machine room 15, the protruding portion 44A of the right side wall portion 44, and the right corner panel members 74, 75 from the outside of the cabinet. The outer surface of the right corner panel members 74, 75 outside the cabinet protrudes slightly outside the cabinet compared to the outer surface of the outer box 11A constituting the protruding portion 44A (FIG. 15), whereby a gap G1 is formed between the cover member 56 and the protruding portion 44A.

[0050] In this way, even if warping occurs on the outer surface of the protruding portion 44A outside the cabinet, the warping of the protruding portion 44A is covered from the outside by the cover member 56, so that the outer right side surface of the locker-type refrigerator 10 is flattened. In addition, since there is only a gap G1 between the protruding portion 44A and the cover member 56, even when the protruding portion 44A warps so as to approach the cover member 56, the cover member 56 will not be pushed out outside the cabinet by the protruding portion 44A, and the flatness of the cover member 56 is maintained. As a result, it becomes easier to suppress the gap generated between adjacent units. Also, in this way, the protruding portions 44A and 43A of adjacent locker-type refrigerators 10 can be prevented from being in close contact with each other. Although the protruding portions 44A and 43A are heat-insulating walls, if they are in close contact with each other, there is a concern that condensation may occur on the contact surface depending on the heat-insulating performance. By making the protruding portions 44A and 43A non-contact with each other by the cover member 56, condensation can be suppressed.

[0051] Note that the cover member 56 only needs to have a size that covers at least the protruding portion 44A which is a heat insulation wall from the outside of the storage. Also, the cover member 56 is supposed to be provided symmetrically on the outside of the storage of the protruding portion 43A of the left side wall portion 43. However, for example, in FIG. 2, in order to clarify the positional relationship in the front - rear direction between the protruding portion 43A and the corner panel members 72, 73, in each drawing of the present specification, the cover member covering the protruding portion 43A is illustrated in a removed state.

[0052] <Other embodiments> The present technology is not limited to the embodiments described by the above description and drawings. For example, the following embodiments are also included in the technical scope of the present technology.

[0053] (1) The number, shape, and arrangement of the inflow hole 53B of the left duct 53 and the outflow hole 54B of the right duct 54 can be appropriately changed according to the size of the storage chamber 12 and the like. Also, an outflow hole may be provided in the upper panel 51, and the air in the storage chamber 12 may be directed toward the suction port 25 through the outflow hole in the upper panel 51.

[0054] (2) The storage chamber 12 may not be partitioned, and only one door 13 may be provided.

[0055] (3) The arrangement of each part of the circulation fan 24 and the cooling device 16 is not limited to the illustration, and other arrangements may be possible as long as the cold air circulates in a desired direction.

[0056] (4) In addition to the first front opening 11S1, a rear opening connected to the storage chamber 12 may be provided, and a second door for opening and closing the rear opening may be provided. In this way, it becomes possible to take in and out the stored items from both the front and the rear of the storage chamber 12 (so - called pass - through type). According to a pass - through type refrigerator, for example, the front door 13 can be used for the user to open and close, and the rear second door can be used for the administrator to open and close.

[0057] (5) The cooling temperature of the locker-type refrigerator 10 is not limited to the refrigerated storage temperature and may be the frozen storage temperature. That is, the locker-type cooling storage refrigerator may be a locker-type freezer. Further, the present technology is applicable to refrigerators other than the locker-type refrigerator 10 that do not include the locking device 70.

Description of Reference Numerals

[0058] 10: Locker-type refrigerator (locker-type cooling storage refrigerator), 11: Heat insulation box body, 11S: Front opening, 12: Storage room, 13: Door, 16: Cooling device, 42: Bottom wall portion, 43: Left side wall portion (side wall portion), 43A, 44A: Protrusion, 44: Right side wall portion (side wall portion), 48: Shelf net (shelf), 53: Left duct (duct), 53B: Inflow hole (ventilation hole), 54: Right duct (duct), 54B: Outflow hole (ventilation hole), 56: Cover member, 70: Locking device, 72, 73: Left corner panel member (panel member), 74, 75: Right corner panel member (panel member), G1: Gap

Claims

1. A heat-insulating box body having a front opening and a storage chamber for accommodating an object to be stored, a cooling device for cooling the storage chamber, a door for opening and closing the front opening, and a locking device for locking the door, and a side wall portion of the heat-insulating wall constituting the heat-insulating box body has a crank-shaped horizontal cross section, the side wall portion protrudes toward the side opposite to the storage chamber and has a protruding portion constituting a part of the crank shape, a duct serving as a flow path through which air flowing in the vertical direction and circulating between the storage chamber and the cooling device is provided on the storage chamber side of the protruding portion, a columnar panel member extending in the vertical direction is provided behind the protruding portion on the outside of the side wall portion outside the box, a locker-type cooling storage having a storage space capable of accommodating a member of the same size as the locking device between the panel member and the side wall portion.

2. The locker-type cooling storage according to claim 1, wherein the panel member is connected to the heat-insulating box body.

3. Two of the side wall portions having the crank shape are provided in a pair on the left and right, the locking device is provided on the outside of the box of one of the side wall portions, a columnar second panel member extending in the vertical direction is provided in front of the protruding portion on the outside of the box of the other side wall portion, The locker-type cooling storage according to claim 1 or claim 2, wherein a storage space capable of accommodating a member of the same size as the locking device is provided between the second panel member and the other side wall portion.

4. The locker-type cooling storage according to any one of claims 1 to 3, wherein a surface of the duct on the storage chamber side is substantially flush with a surface of the side wall portion on the storage chamber side other than the protruding portion.

5. Shelves for partitioning the inside of the storage chamber are attached to a surface of the side wall portion on the storage chamber side, The locker-type cooling storage according to claim 4, wherein the duct is provided with a plurality of ventilation holes opening toward the storage chamber along the vertical direction.

6. Two of the side wall portions having the crank shape are provided in a pair in the left-right direction, the ducts are provided for the two side wall portions respectively, the first duct provided for one of the side wall portions is a flow path for sucking air in the storage chamber and flowing it toward the cooling device, The second duct provided with respect to the side wall portion of the other party is a flow path for blowing the air cooled by the cooling device into the storage chamber. The locker-type cooling storage according to any one of claims 1 to 5.

7. The locking device is provided in front of the protruding portion on the outside of the side wall portion of the cabinet. The locker-type cooling storage according to any one of claims 1 to 6.

8. A cover member is provided outside the cabinet with a predetermined gap from the protruding portion and covers at least the protruding portion. The locker-type cooling storage according to any one of claims 1 to 7.

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