JP2023061491A - Locker style cooling storage - Google Patents

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

The present technology relates to locker-type refrigerated storage.

2. Description of the Related Art Conventionally, there has been known a locker-type cooling storage that can be locked while cooling and preserving packages such as foodstuffs. The locker-type cooling storage described in Patent Document 1 has a main body with three upper and lower storage chambers, two of which are controlled at a refrigerating temperature by a cooling device. In addition, it is common to install a plurality of locker-type cooling storages side by side so that the door faces the front. According to the technique described in Patent Literature 1, it is possible to smoothly open and close the outer door even when a plurality of units are installed side by side.

Japanese Patent No. 4889171

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 walls forming the main body (heat insulating box). However, if the heat insulating wall is made thin, the strength is insufficient, and bending and warping are likely to occur. In particular, when multiple units are installed side by side as described above, the effects of bending and warping caused by each unit will spread to other adjacent locker-type cooling storages, leading to large deflections, leading to deformation of the heat insulating box. Sometimes I end up In addition, due to bending and warping, gaps are likely to occur between adjacent locker-type cooling storages. On the other hand, if reinforcing members are added to improve the strength against such a situation, the actual situation is that the manufacturing cost and weight will increase.

The present technology has been completed based on the above circumstances, and an object of the present technology is to suppress the bending of the heat insulating box at a low cost.

A locker-type cooling storage according to the present technology includes a heat-insulating box body having a front opening and a storage chamber for storing an object to be stored, a cooling device for cooling the storage chamber, and opening and closing the front opening. and a lock device for locking the door, and the side wall portion of the heat insulating wall forming the heat insulating box has a crank-shaped cross section in the horizontal direction.

By forming the side wall of the heat insulating wall forming the heat insulating box into a crank shape in cross section, it is possible to suppress the bending of the side wall and increase the strength as compared with the case where the side wall has a flat flat plate shape. As a result, it is possible to suppress the bending of the entire heat insulating box and increase the strength. Further, in this way, since the strength can be increased without using a reinforcing member, it is possible to suppress the bending of the heat insulating box without increasing the cost.

In addition, the side wall portion has a protruding portion that protrudes toward the side opposite to the storage chamber and forms a part of the crank shape, and the protruding portion extends along the up-down direction on the side of the storage chamber. A duct may be provided that is present and serves as a flow path for air circulating between the storage chamber and the cooling device. In this way, the side wall portion having a crank-shaped cross section can be easily realized by the projecting portion. In addition, since a recess is formed on the storage room side of the protruding portion, by providing the duct in this portion, the duct can be provided in a space-saving manner.

Further, the surface of the duct on the side of the storage chamber may be substantially flush with the surface of the side wall portion on the side of the storage chamber other than the projecting portion. With this configuration, the duct does not protrude from the side wall toward the storage compartment, and when viewed from the storage compartment, the duct and the side wall are flush and connected flat. As a result, the space in the storage chamber can be effectively utilized when the user stores the objects to be stored in the storage chamber.

In addition, a shelf that divides the interior of the storage chamber into a plurality of compartments is attached to a surface of the side wall portion facing the storage chamber. You may have more than one. In this way, the storage compartment can be partitioned into a plurality of compartments by the shelves to form a plurality of storage spaces. Moreover, even in such a case, the ventilation holes can suppress temperature variations between the accommodation spaces.

Further, two of the crank-shaped side wall portions are provided in pairs in the left-right direction, and the duct is provided for each of the two side wall portions. The first duct provided opposite to the storage chamber is a flow path for sucking the air in the storage chamber and flowing it toward the cooling device, and the second duct provided to the other side wall portion A flow path may be provided for blowing air cooled by the cooling device to the storage chamber. In this way, two side walls are provided with ducts, one duct (the first duct) is used for sucking the air in the storage chamber and flowing it toward the cooling device, and the other duct (the second duct) is used for duct) can be used to blow the air cooled by the chiller into the storage compartment. Further, by using the ducts on the left and right side walls as the air flow paths, it is not necessary to provide the ducts on the rear wall. As a result, it becomes easy to divert when manufacturing derivative products in which a rear opening and a door for opening and closing the rear opening are added.

Further, the lock device may be provided in front of the projecting portion on the outer side of the side wall portion. With this arrangement, the inner side of the lock device is covered with the side wall, which is a heat insulating wall. As a result, it is possible to suppress the occurrence of dew condensation on the locking device.

Further, a cover member may be provided on the outer side of the storage with a predetermined gap with respect to the projecting portion, and cover at least the projecting portion. In the manufacturing process of the heat-insulating box, during the process of solidifying the filled heat-insulating material, the foaming pressure may cause warping on the outside surface of the projecting portion. By covering such a warp 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 adjacently, they can be arranged side by side without gaps. Furthermore, according to the cover member, it is possible to prevent the projecting portions of the side wall portions of the adjacent stands from coming into close contact with each other. Although the protrusions are part of the heat insulating wall, depending on the heat insulation performance, there is a concern that dew condensation may occur on the contact surfaces if the protrusions are in close contact with each other. Dew condensation can be suppressed by keeping the protruding portions from contacting each other with the cover member.

Further, a columnar panel member extending along the vertical direction is provided behind the projecting portion on the outer side of the side wall portion, and between the panel member and the side wall portion, the A storage space may be provided to accommodate a member of the same size as the locking device. With this configuration, when manufacturing a derivative product having a rear opening, the locking device for locking the second door that opens and closes the rear opening can be arranged in the housing space. As a result, diversion to derivative products becomes easy.

Moreover, the said panel member may be connected with the said heat insulation box. In this way, the panel member can be firmly fixed.

Also, two of the crank-shaped side wall portions are provided in pairs on the left and right, and the locking device is provided on one of the side wall portions on the outer side of the cabinet, and on the other side wall portion. A columnar second panel member extending in the vertical direction is provided in front of the projecting portion on the outer side of the warehouse, and is provided between the second panel member and the other side wall portion. may be provided with an accommodation space capable of accommodating a member having the same size as the locking device. In this way, when a swing door is used as the door, when manufacturing a derivative product in which the opening direction of the door is changed (for example, a product with a specification change from a right-opening type to a left-opening type), the change is possible. The lock device can be accommodated in the accommodation space between the second panel member and the other side wall portion according to the condition. As a result, diversion to derivative products becomes easy.

According to the present technology, it is possible to suppress the bending of the heat insulating box at low cost.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the usage condition of the locker-type refrigerator which concerns on Embodiment 1. 1 is a perspective view of a locker-type refrigerator according to Embodiment 1 III-III line cross-sectional perspective view of FIG. IV-IV line sectional view of FIG. Enlarged cross-sectional perspective view of the shelf bracket of the shelf net The perspective view which expanded the engagement part of a door and a locking device Perspective view with the left corner panel member removed from FIG. VIII-VIII line sectional view of FIG. Exploded cross-sectional view of the inner box, outer box, left duct, right duct, and corner panel member of FIG. Perspective view showing part of the outer box and corner panel members Exploded cross-sectional view of the outer case of FIG. Perspective view with the corner panel member removed from FIG. Perspective view of the outer box forming the bottom wall Perspective view of leg base Enlarged view of framed portion XV in FIG. Exploded cross-sectional view of the cover member

<Embodiment 1>
A locker-type refrigerator 10 (an example of a locker-type cold 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 are the front and rear in the front-rear direction of the locker-type refrigerator 10, and the left, right, and vertical in the width direction (horizontal direction) when viewed from the front. Up and down directions (vertical direction) are shown. However, the above direction is merely determined for convenience and should not be construed as limiting. Further, with respect to a plurality of identical members, one member may be denoted by a reference numeral, and the other members may be omitted.

As shown in FIGS. 1 and 2, the locker-type refrigerators 10 are generally in the shape of a vertically long rectangular parallelepiped, and are used by arranging them side by side so that the door 13 faces the front. The locker-type refrigerator 10 is installed, for example, in front of a store or in a shopping mall, and can store packages (an example of stored items) such as food and medicine in a locked state while cooling them. The locker-type refrigerator 10 is used by a service user (for example, a purchaser) to receive packages accommodated by a service provider (for example, a store clerk or a delivery person), but the application is not limited. For example, it may be used by service users to temporarily store packages in cold storage. Also, depending on the application and installation location, only one locker-type refrigerator 10 may be installed instead of a plurality of units. Hereinafter, the service provider and those authorized by it will be referred to as the administrator, and the service provider will simply be referred to as the user.

One of the plurality of locker-type refrigerators 10 installed adjacently has an operation terminal 80 as shown in FIG. The operation terminal 80 is an information terminal provided with at least one of input means 80A such as an operation panel and reading means 80B such as a bar code reader, and known terminals such as tablet terminals and computers are used. The user can unlock or lock the locking device 70 of the door 13, which will be described later, by inputting a password into the operation panel or reading a two-dimensional barcode with a barcode reader. The operation terminal 80 may be installed separately from the locker-type refrigerator 10 and may not be required if the lock device 70 is not an electronic lock. The basic configuration of each unit is common except for the operation terminal 80, and the locker-type refrigerator 10 without the operation terminal 80 shown in FIG. 2 will be described in detail below as an example.

As shown in FIGS. 2 to 4, the locker-type refrigerator 10 roughly 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, and a door. 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 11, and a storage room 12 formed in the heat insulating box 11 are cooled. and legs 14 placed on the installation floor so as to support them from below.

As shown in FIGS. 3 and 4, the heat insulating box 11 is composed of an outer box 11A and an inner box 11B, which are made of metal plates such as stainless steel and are assembled into a box shape. structure. The heat insulating box 11 is composed of heat insulating walls having a ceiling wall portion 41 , a bottom wall portion 42 , a left wall portion 43 , a right wall portion 44 and a rear wall portion 45 . An opening is provided in the ceiling wall portion 4, and a ceiling cover 46 having heat insulation is fitted into the opening from the machine room 15 side. A cooler chamber 20 is formed below the ceiling lid 46 by extending a cooler duct 23 . Furthermore, an upper 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. A right duct 54 is attached to the right side wall portion 44 along the vertical direction. A portion surrounded by the upper 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 serves as the storage chamber 12 for storing the objects to be stored. there is

As shown in FIGS. 3 and 4, the storage room 12 occupies most of the internal space (inside) of the heat-insulating box body 11, and is arranged vertically by a plurality of (specifically, four) shelf nets 48. It is divided into a plurality (specifically, four) of storage spaces 12A, 12B, 12C, and 12D. As shown in FIGS. 4 and 5, the shelf net 48 is attached to the surface of the left side wall portion 43 and the right side wall portion 44 on the side of the storage chamber 12, and can place objects to be stored thereon. More specifically, the net shelf 48 includes a portion of the left side wall portion 43 where the left duct 53 is not provided (a portion other than the projecting portion 43A described later) and a portion of the right side wall portion 44 where the right duct 54 is not provided (a portion of which is described later). (portions other than the projecting portion 44A that extends to the side) by the shelf bracket 48A. By attaching the shelf bracket 48A to the portion, the strength of the net shelf 48 can be easily secured. The shelf bracket 48A covers the outer periphery of a portion of the wire forming the shelf net 48, and is fixed to the left side wall 43 and the right side wall 44 by non-general-purpose special-shaped screws. This prevents the user from easily removing the net shelf 48 .

A plurality of (specifically, four) horizontal frames 49 are provided on the front surface of the heat insulating box 11, as shown in FIGS. The front opening 11S is partitioned by the lateral frame 49 into sizes corresponding to the accommodation spaces 12A, 12B, 12C, and 12D. The horizontal frame 49 is a solid prismatic member filled with heat insulating material, and extends in the left-right direction from the left side wall portion 43 to the right side wall portion 44 . The vertical height of the upper surface of the horizontal frame 49 substantially matches the upper surface of the rack net 48 in the upper three stages.

As shown in FIG. 4, a plurality of (specifically, four) doors 13 are provided so as to open and close each portion of the front opening 11S defined by the horizontal frame 49 . Each door 13 is a right-opening swinging heat insulating door, and the right side portion of the door 13 is attached to the heat insulating box 11 by a hinge member 13A (FIG. 1). As shown in FIGS. 6 and 7, each door 13 has a concave pull tab 13B on the front surface of the left side and an engagement plate 13C that engages with the locking device 70 on the rear surface of the left side. The engagement plate 13C is a plate-shaped member that protrudes rearward, and has an engagement hole 13C1 formed at the tip thereof into which the movable rod 70B of the lock device 70 is inserted.

The lock device 70 is provided behind the left portion of the door 13, as shown in FIG. The locking device 70 is provided on the outer side of the left side wall portion 43 so as to be accommodated between the left side wall portion 43 and a first left corner panel member 72 which will be described later. As a result, the inner side of the lock device 70 is covered with the left side wall portion 43 which is a heat insulating wall. As a result, the occurrence of dew condensation on the lock device 70 can be suppressed. The lock device 70 includes a vertically long box-shaped main body portion 70A and a movable rod body 70B. An insertion hole 70A1 elongated toward the rear is provided in the front surface of the body portion 70A, and the engaging 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 vertically.

The lock device 70 is an electronic lock, and when an unlocking signal is received from the operation terminal 80, the movable rod 70B moves upward and is pulled out from the engagement hole 13C1 of the door 13, thereby opening the door 13. be able to Further, when a locking signal is received from the operation terminal 80, the movable rod 70B moves downward and is inserted into the engagement hole 13C1 of the door 13, thereby closing the door 13 so that it cannot be opened. However, the locking device 70 may have an auto-locking function that automatically locks when the door 13 is closed in order to prevent forgetting to lock. I don't mind. Furthermore, the locker-type refrigerator 10 may be provided with an unlocking device that allows the manager to unlock all the lock devices 70 collectively.

As shown in FIGS. 2 to 4, the machine room 15 is arranged above the heat insulating box 11, and has a front panel 15A, a left side panel 15B, and a right side panel on the front, left, and right sides, respectively. covered with 15C. The upper and rear parts of the machine room 15 are open to take in outside air and release the heat in the machine room 15 . In the machine room 15, in addition to the compressor 17, the condenser 18, and the condenser fan 19 that constitute the cooling device 16, there are a control device 60 (electrical box, power supply unit), an operation box 61, and a lock device repeater. 62 etc. are accommodated.

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, which will be described later. , are connected in this order by refrigerant pipes and the refrigerant is circulated to form a known refrigeration circuit (refrigeration cycle).

The control device 60 is arranged on the rear side of the machine room 15, as shown in FIGS. The control device 60 includes circuits for controlling the operation of the locker-type refrigerator 10 and for supplying power, etc., and these are housed in a horizontally long box.

As shown in FIG. 4, the operation box 61 is arranged on the rear side of the front panel 15A, and has a display section 61A, an operation section 61B, and an operation 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 are transmitted 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 by the administrator with the front panel 15A removed. The display unit 61A and the operation unit 61B are connected to the control board of the control device 60 via the operation board.

As shown in FIG. 2, the lock device repeater 62 is arranged on the left side of the right side panel 15C (on the side of the machine room 15), and is connected to lead wires from each lock device 70. . The lock device repeater 62 is connected for communication with the operation terminal 80 , and an unlocking signal or the like from the operation terminal 80 is transmitted to the lock device 70 via the lock device repeater 62 .

As shown in FIGS. 3 and 4, the cooler duct 23 is provided so as to cover the upper portion (ceiling lid 46) of the heat insulating box 11 from below. A cooler chamber 20 is formed therebetween. Inside the cooler chamber 20, a cooler 21, a circulation fan 24, an indoor temperature sensor, and the like are accommodated. The circulation fan 24 circulates the air in the storage chamber 12 while passing it through the cooler 21 . The cooler duct 23 has a shape that slopes downward from the left side wall portion 43 toward the right side wall portion 44, and the left side portion is formed with a greater angle of inclination than the right side portion. A left side portion of the cooler duct 23 is formed with a suction port 25 for sucking air from the storage chamber 12 into the cooler chamber 20 , and a circulation fan 24 is provided so as to cover the suction port 25 . A cooler 21 is provided on the right side portion of the cooler duct 23 where the angle of inclination is small. A 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.

The cooler duct 23 also serves as an internal drain pan, and as shown in FIG. 3, a drain hose 31 is connected to a portion of the right end from below. The drain hose 31 is embedded in the right side wall portion 44 and extends downward, passes from the right side wall portion 44 through the bottom wall portion 42 to the external drain pan 32 provided below the bottom wall portion 42 . It is connected.

As shown in FIGS. 3 and 4, the left duct 53 is provided along the left wall portion 43 of the heat insulation box 11 and extends vertically. The inside of the left duct 53 (the space surrounded by the left wall portion 43 and the left duct 53) sucks in the air in the storage chamber 12, and the suction port 25 of the cooler duct 23 (and thus the cooler 21 in the cooler chamber 20) ) flow path. 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 near the net shelf 48 at the bottom. 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 53 A of the surface of the left duct 53 facing the storage room 12 communicates with the left end of the upper panel 51 . It is connected. A 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 large number of inflow holes 53B (an example of ventilation holes) for sucking the air in the storage chamber 12 into the left duct 53 . A large number of inflow holes 53B are provided so as to be arranged in a grid of five at a constant pitch in the vertical direction and the front-rear direction.

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 vertically. The inside of the right duct 54 (the space surrounded by the right side wall portion 44 and the right duct 54) is for flowing cold air from the cooler 21 blown out from the outlet 26 of the cooler duct 23 toward the storage chamber 12. flow path. Like the left duct 53 , 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 bottom rack 48 . The upper and lower portions of the right duct 54 are open. An upper opening of the right duct 54 communicates with the outlet 26 of the cooler duct 23 , and a lower opening communicates with the lower portion of the storage chamber 12 . Further, the right duct 54 is provided with a large number of outflow holes 54B (an example of ventilation holes) for blowing out the cool air that has flowed into the right duct 54 to the storage chamber 12 . A large number of outflow holes 54B are provided so as to be arranged in a grid of five at a constant pitch in the vertical direction and the front-rear direction.

Cooling operation is performed by driving the compressor 17, the condenser fan 19, and the circulation fan 24. FIG. In the cooling operation, the air in the storage chamber 12 flows into the left duct 53 from the inflow 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 of the left duct 53 passes through the space between the cooler duct 23 and the upper panel 51, is sucked into the inlet 25 of the cooler duct 23, and is cooled by heat exchange in the process of passing through the cooler 21. It becomes chilly. Cold air from the cooler 21 is blown out from the blowout port 26, flows into the right duct 54, descends inside the right duct 54, and enters the storage chamber 12 through the outflow hole 54B and the lower end portion 54C of the right duct 54. blown out. The air in the storage compartment 12 is thus cooled. After a predetermined cooling operation time, defrosted water from the cooler 21 and the like generated by the defrosting operation that is appropriately performed is received by the cooler duct 23 and then passed through the drain hose 31 to the outside drain pan 32. drained to

As described above, by using the left duct 53 and the right duct 54 provided on the left and right side walls as air flow paths, it is not necessary to provide ducts serving as air flow paths in the rear wall portion 45 . As a result, when manufacturing derivative products in which a rear opening and a door for opening and closing the same are added, it is easy to divert them to derivative products. Further, by providing a plurality of ventilation holes (inflow hole 53B, outflow hole 54B) along the vertical direction in each of the ducts 53, 54, the storage chamber 12 can be divided into a plurality of storage spaces 12A, 12B, 12C, 12D. Even if there is, it is possible to suppress the variation in the temperature between the storage spaces and keep the temperature more uniform for cooling.

Next, the cross-sectional shape of the left side wall portion 43 and the 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 projecting portion 43A in the central portion in the front-rear direction, and the cross section (horizontal section) has a crank shape due to the step caused by the projecting portion 43A. ing. By forming the left side wall portion 43 into a crank shape in cross section, it is possible to suppress the bending of the left side wall portion 43 and increase the strength as compared with the case where the left side wall portion 43 has a flat plate shape without steps. As a result, the bending of the heat insulation box 11 as a whole can be suppressed, and the strength can be increased. Moreover, since the strength can be increased without using a reinforcing member, the bending of the heat insulating box 11 can be suppressed without increasing the cost.

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 that constitutes the left side wall portion 43 protrudes toward the outside of the box, thereby forming an inner box recess 11B1 on the inner side of the inner box 11B. Further, the outer case 11A constituting the left side wall portion 43 is formed with outer case recesses 11A1 and 11A2 that are recessed toward the inside of the refrigerator in front and rear of the inner box recess 11B1. A heat insulating material 11C is filled between the inner box 11B having the inner box recess 11B1 and the outer box 11A having the two outer box recesses 11A1 and 11A2. It is formed in a cross-sectional crank shape having a

As shown in FIGS. 8 and 9, the left duct 53 is provided inside the protrusion 43A so as to cover the inner box recess 11B1 of the inner box 11B. The left duct 53 has a substantially U-shaped cross section so as to correspond to the protrusion height (depth of the inner box recess 11B1) L43A of the protrusion 43A and the width W43A in the front-rear direction (the width of the inner box recess 11B1). formed. A surface 53D of the left duct 53 on the side of the storage chamber 12 is substantially flush with the inside surface 43D of the left side wall portion 43 other than the projecting portion 43A. That is, the left duct 53 does not protrude from the left side wall portion 43 toward the inside of the refrigerator, and when viewed from the inside of the refrigerator, the left duct 53 and the left side wall portion 43 are flatly connected. By providing the left duct 53 in this manner, the left duct 53 can be provided in a space-saving manner, and the space can be easily used effectively when the user stores objects to be stored in the storage chamber 12 .

As shown in FIGS. 8 and 9, left corner panel members 72 and 73 are provided in the outer box recesses 11A1 and 11A2 of the outer box 11A, respectively. The left corner panel members 72 and 73 are provided on the outer side of the left side wall portion 43 in front of and behind the projecting portion 43A, respectively, and cover the outer box recessed portions 11A1 and 11A2. and left rear corner, respectively.

As shown in FIG. 10, the left corner panel members 72 and 73 have a columnar shape extending vertically. The left corner panel members 72 and 73 are connected to the side wall portion 43 and fixed with screws, and are firmly fixed to the heat insulating 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 are open on the right side (the inner side of the chamber). A lock 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 lock device 70 to be housed. In this way, the lock device 70 can be provided in a space-saving manner by effectively utilizing the outer case recess portion 11A1 of the outer case 11A.

A storage space is provided between the second left corner panel member 73 and the left side wall portion 43 to accommodate a member having the same size as the locking device 70 . With this configuration, when manufacturing a derived product further including a rear opening, the second door locking device for opening and closing the rear opening can be accommodated in the accommodation space. That is, it becomes easy to divert to a derived product (a so-called pass-through type product) having a rear opening in addition to the front opening 11S. As a use of such derivative products, for example, it is conceivable that the front door 13 is used for the user to open and close, and the rear second door is used for the administrator to open and close.

The right side wall portion 44, the right duct 54, and the right corner panel members 74, 75 are, as shown in FIGS. are provided symmetrically so as to form a pair, and redundant description is omitted. The right side wall portion 44 has a crank shape that is bilaterally symmetrical with the left side wall portion 43, and has a projecting portion 44A in the central portion in the front-rear direction. Further, the outer case 11A forming the right side wall portion 44 is formed with outer case recessed portions 11A3 and 11A4 that are recessed toward the inside of the refrigerator in front and rear of 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, there are storage spaces that can accommodate members of the same size as the locking device 70. are provided respectively. In this way, the lock device can be accommodated in the accommodation space when manufacturing a derivative product in which the door 13 opens to the left or when manufacturing a derivative product further including a rear opening.

As shown in FIG. 11, the left wall portion 43, the right wall portion 44, and the rear wall portion 45 of the outer casing 11A are composed of an outer left plate 91, an outer right plate 92, an outer rear plate 93, an outer It is composed of a left front plate 94 and an outer right front plate 95 . As shown in FIG. 12, the lower ends of the outer left plate 91 and the outer right plate 92 are connected to an outer bottom plate 96 forming the bottom wall portion 42 of the outer case 11A. The upper ends of the outer left plate 91 and the outer right plate 92 are connected by a first connecting frame 97 at the front side and are connected by a second connecting frame 98 at the rear side. This suppresses bending in the left-right direction.

The outer bottom plate 96, as shown in FIGS. 12 and 13, has a bottom plate main body 96A, two raised portions 96B, and four projecting pieces 96C. The bottom plate main body 96A is integrally formed by hemming and bending a stainless steel thin plate. The raised portions 96B extend in the left-right direction in a hollow columnar shape, and are provided in pairs on the front and rear sides of the bottom plate main body 96A. The raised portion 96B has a U-shaped cross section, and is joined to the bottom plate main body 96A to form a hollow cylinder 100 having a rectangular cross section. A plurality of openings 96B1 are formed in the raised portion 96B so that the inside thereof is filled with the heat insulating material 11C. The raised portion 96B can suppress the bending of the bottom wall portion 42 and improve the strength. The protruding piece 96C protrudes upward and is fastened to the lower ends of the outer left plate 91 and the outer right plate 92, respectively. Thereby, the strength of the heat insulation box 11 can be further improved. Two protruding pieces 96C are provided on each protuberance 96B at both left and right ends of each protuberance 96B. In addition, a leg base 99 (FIG. 14) for fixing the leg 14 of the locker-type refrigerator 10 is inserted and fastened inside the hollow cylindrical body 100 . 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 base 99, the strength of the leg 14 can be improved.

By the way, during the process of solidifying the heat insulating material 11C filled between the outer box 11A and the inner box 11B in the manufacturing process of the heat insulating box 11, the outer box 11A is slightly bulged outward due to the foaming pressure, and warping occurs. There is When a plurality of locker-type refrigerators 10 are installed side by side, there is a concern that a gap may be created between the adjacent stands 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 (approximately 1 to 2 mm) on the outer side of the projecting portion 44A of the right side wall portion 44. ing. 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 into 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 projecting portion 44A of the right side wall portion 44, and the right corner panel members 74, 75 from the outside of the cabinet. The outside surfaces of the right corner panel members 74 and 75 protrude slightly outward from the outside surfaces of the outer case 11A forming the projecting portion 44A (FIG. 15). A gap G1 is formed between it and 44A.

With this configuration, even if the outer surface of the projecting portion 44A is warped, the warping of the projecting portion 44A is covered by the cover member 56 from the outside of the chamber. The face becomes flattened. In addition, since there is a gap G1 between the protruding portion 44A and the cover member 56, even if the protruding portion 44A warps toward the cover member 56, the protruding portion 44A prevents the cover member 56 from moving toward the outer side of the refrigerator. Therefore, the flatness of the cover member 56 is maintained. As a result, it becomes easier to suppress the gap generated between the adjacent stands. Also, in this way, the projecting portions 44A and 43A of the adjacent locker-type refrigerators 10 can be prevented from coming into close contact with each other. Although the protrusions 44A and 43A are heat insulating walls, if they are in close contact with each other, there is a concern that dew condensation may occur on the contact surfaces depending on the heat insulating performance. Dew condensation can be suppressed by keeping the protrusions 44A and 43A from contacting each other with the cover member 56 .

In addition, the cover member 56 should just have the magnitude|size which covers 44 A of protrusion parts which are a heat insulating wall at least from the outside of a refrigerator. Further, the cover member 56 is also provided symmetrically on the outer side of the projecting portion 43A of the left side wall portion 43. As shown in FIG. However, for example, in FIG. 2, in order to clarify the positional relationship in the front-rear direction between the projecting portion 43A and the corner panel members 72, 73, the cover member covering the projecting portion 43A is removed in each drawing of this specification. state.

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

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

(2) The storage room 12 is not partitioned, and only one door 13 may be provided.

(3) The arrangement of each part of the circulation fan 24 and the cooling device 16 is not limited to that shown in the drawing, and other arrangement may be used as long as the cold air circulates in a desired direction.

(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 put in and take out stored items from both the front and the rear of the storage chamber 12 (so-called pass-through type). According to the pass-through type refrigerator, for example, the front door 13 can be used for opening and closing by the user, and the second door on the rear side can be used for opening and closing by the manager.

(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 may be a locker-type freezer. In addition, the present technology can also be applied to refrigerators other than the locker-type refrigerator 10 that do not include the lock device 70 .

10: Locker-type refrigerator (locker-type cooling storage), 11: Insulation box, 11S: Front opening, 12: Storage room, 13: Door, 16: Cooling device, 42: Bottom wall, 43: Left wall (side wall part), 43A, 44A: projecting part, 44: right side wall part (side wall part), 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 (10)

a heat insulating box body having a front opening and a storage chamber for storing an object to be stored;
a cooling device for cooling the storage compartment;
a door for opening and closing the front opening;
and a locking device for locking the door,
A rocker-type cooling storage cabinet in which the side wall portion of the heat insulating wall constituting the heat insulating box body has a crank-shaped horizontal cross section. The side wall has a protrusion that protrudes toward the opposite side of the storage chamber and forms a part of the crank shape,
2. A duct extending in the vertical direction is provided on the protruding portion on the side of the storage chamber, and serves as a flow path for air circulating between the storage chamber and the cooling device. Locker type cold storage as described. 3. The locker-type cooling storage according to claim 2, wherein the surface of the duct facing the storage compartment is substantially flush with the surface of the side wall facing the storage compartment other than the projecting portion. A shelf for partitioning the storage chamber into a plurality of compartments is attached to a surface of the side wall portion facing the storage chamber,
4. The locker-type cooling storage cabinet according to claim 3, wherein said duct has a plurality of ventilation holes opening toward said storage compartment along the vertical direction. Two of the crank-shaped side wall portions are provided in pairs in the left-right direction,
The duct is provided for each of the two side wall portions,
The first duct provided for one of the side walls is a flow path for sucking air in the storage chamber and flowing it toward the cooling device,
The second duct provided for the other side wall portion is a flow path for blowing out the air cooled by the cooling device to the storage chamber. Locker type cold storage as described. 6. The locker type cooling storage cabinet according to any one of claims 2 to 5, wherein the lock device is provided in front of the projecting portion on the outer side of the side wall portion. 7. The locker-type cooling storage according to any one of claims 2 to 6, further comprising a cover member provided outside the storage with a predetermined gap from the projection and covering at least the projection. A columnar panel member extending in the vertical direction is provided behind the projecting portion on the outer side of the side wall portion,
8. The rocker-type cooling device according to claim 2, wherein a housing space capable of housing a member having the same size as the locking device is provided between the panel member and the side wall. storage. 9. A locker-type cooling storage cabinet according to claim 8, wherein said panel member is connected to said heat insulating box body. Two of the crank-shaped side wall portions are provided in pairs on the left and right,
The locking device is provided on the outer side of one of the side walls,
A columnar second panel member extending in the vertical direction is provided in front of the projecting portion on the outer side of the other side wall portion,
10. A locker type according to claim 8 or 9, wherein a housing space capable of housing a member having the same size as said locking device is provided between said second panel member and said other side wall portion. cold storage.

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