JP2021067431A - Cooling storage - Google Patents

Abstract

To provide a cooling storage capable of suppressing temperature unevenness among a plurality of stages of top plates in a storage chamber.SOLUTION: A cooling storage 10 includes: a storage chamber 20 having a box shape with a front opening 20A, and provided with a plurality of stages of top plates 40 arranged in a vertical direction to place stored objects thereon; a cooler chamber 17 which is disposed at an upper side of the storage chamber and in which a cooler 33 generating cold air is housed; and a duct 90 disposed on a first side face 22 of the storage chamber 20 and capable of circulating the cold air generated at least by the cooler 33. The cooler chamber 17 is provided with a blowout port 18B for blowing out the cold air into the storage chamber 20, the duct 90 is disposed from just under the blowout port 18B to the lower portion of the storage chamber 20 along the first side face 22, and the duct 90 is provided with a plurality of first blowout holes 94 in a state of being overlapped to parts respectively between the adjacent top plates 40 in a side view.SELECTED DRAWING: Figure 1

Description

The present invention relates to a cooled storage.

Conventionally, as an example of a cooling storage that circulates and supplies cold air into the storage to cool it, the one described in Patent Document 1 below is known. The cooling storage described in Patent Document 1 is a vertical refrigerator for business use, and is a refrigerating room (storage room) in which a plurality of shelves on which objects to be cooled (objects to be stored) are placed are arranged side by side. Has. Cold air is blown into the storage chamber from an outlet provided on the ceiling of the storage chamber. Further, in the cooling storage, the purpose of preventing the outlet from being blocked by the stored matter on the uppermost shelf network and ensuring the supply of cold air from the outlet is to ensure the supply of cold air from the outlet. A duct is provided directly below.

Japanese Unexamined Patent Publication No. 2012-225526

By the way, one of the vertical cooling storages has a cooking top plate arranged one above the other instead of a shelf net. For example, a frozen bread dough manufactured at a factory is placed on a top plate and stored frozen. The user can take out the frozen bread dough together with the top plate, store the frozen bread dough together with the top plate in another cooking device, and perform cooking such as fermentation and baking.

In such a cooling storage, since the top plate does not have air permeability, even if the duct described in Patent Document 1 is applied, cold air is not properly supplied between the top plates on the lower side of the storage chamber, and the temperature is uneven. Is the reality.

The technique described in the present specification has been completed based on the above circumstances, and an object thereof is to suppress temperature unevenness in the storage chamber.

The cooling storage according to the technique described in the present specification has a box shape having a front opening, and has a storage chamber in which a plurality of stages of top plates for placing objects to be stored are arranged side by side in the vertical direction, and the above. A cooler chamber arranged above the storage chamber and accommodating a cooler for generating cold air, and a duct arranged on the first side surface of the storage chamber and capable of flowing at least the cold air generated in the cooler. The cooler chamber is provided with an outlet for blowing cold air into the storage chamber, and the duct extends from directly below the outlet to the lower part of the storage chamber along the first side surface. The duct is provided with a plurality of first air vents so as to overlap between the adjacent top plates in a side view.

In this way, since the duct is provided from directly below the outlet to the lower part of the storage chamber, the cold air generated in the cooler efficiently flows into the duct from the outlet and the lower part of the storage chamber. Can be reached. In addition, since the duct has a first air vent at a position where it overlaps with the adjacent top plate (the space where the stored object is stored) when viewed from the side surface, a part of the cold air flowing into the duct is the first air hole. Will be blown out between the top plates. As a result, cold air is supplied to the space between the top plates on the lower side of the storage chamber, and temperature unevenness can be suppressed.

Further, the duct has a main body portion that is arranged so as to face the first side surface with a gap, and two side portions that cover between the side edge of the main body portion and the first side surface. The main body is a region near each side portion and is a region between two blowout regions provided with the plurality of first blower holes and the plurality of first blower holes. Has a non-blown area, and is not provided. In this way, since the first air vent of the duct is provided near the side of the duct, the cold air from the first air vent is not from the center in the surface of the top plate but from both the left and right end sides. It will be blown out between the top plates. As a result, even when the stored object is placed on the plate surface of the top plate, temperature unevenness in the in-plane direction of the top plate is less likely to occur.

Further, on the first side surface side of the main body portion, a guide portion for flowing the cold air in the duct toward the plurality of first air blow holes is provided. In this way, the cold air that has flowed into the duct is surely blown out from the first air vent between the top plates.

Further, the guide portion has an inclined portion that is inclined diagonally upward so as to be separated from the main body portion. In this way, the cold air blown out from the first air blower hole by the inclined portion flows into the space between the top plates and easily flows forward as it is.

Further, a plurality of second air blow holes are provided on each of the two side portions. In this way, cold air is blown out from the second air blower hole, so that the effect of suppressing temperature unevenness can be enhanced.

Further, the duct is provided with an inflow port into which cold air from the air outlet flows in, and an outflow port provided on the lower side of the storage chamber so as to face the inflow port. In a side view, it is assumed that the plurality of first air vents are not provided in the region overlapping between the outlet and the top plate at least in the second stage above the outlet. Duct. When the outlet is provided on the lower side of the storage chamber of the duct, the top plate (and the storage material on the top plate) on the lower side of the storage chamber tends to be overcooled by the cold air from the outlet. Therefore, by not providing the first air vent in the vicinity of the outlet (specifically, between the outlet and the top plate of at least the second stage counting upward from the outlet). , It is possible to suppress a significant temperature drop on the lower side of the storage chamber.

Further, the storage chamber is provided with a plurality of shelf columns on which a plurality of shelf receiving members for mounting the plurality of stages of top plates can be mounted so as to extend in the vertical direction. The lower ends of the columns are arranged with a predetermined gap from the bottom surface of the storage chamber. By doing so, a gap is created between the top plate at the bottom and the bottom surface of the storage chamber, so that the cold air from the outlet flows through the bottom surface of the storage chamber. As a result, the flow rate flowing into the space between the top plates on the lower side of the storage chamber is reduced, and the top plate (and the storage material on the top plate) on the lower side of the storage chamber is more reliably prevented from becoming too cold. become able to.

Further, in the storage chamber, a plurality of a pair of shelf receiving members for mounting the top plates are arranged side by side in the vertical direction, and at least one of the pair of shelf receiving members is a shelf receiving member. A first protruding portion that protrudes upward is provided at an end portion opposite to the duct. By doing so, when the top plate is not pushed to an appropriate position on the shelf support member, the top plate is tilted by the first protrusion. The top plate is recognized by the user as insufficient pushing due to the inclination, and is pushed to an appropriate position. As a result, cold air flows uniformly between the top plates, and temperature unevenness can be suppressed.

Further, the door is provided so as to cover the front opening, and the door has a second protruding portion protruding toward the top plate side on the surface on the storage chamber side. By doing so, when the top plate is not pushed to an appropriate position on the shelf support member, the top plate is pushed by the second protruding portion of the door. As a result, cold air flows uniformly between the top plates, and temperature unevenness can be suppressed.

Further, the top plate has heat resistance and can be used as a top plate for cooking. In this way, the placed object (food) to be stored can be taken out together with the top plate, stored in another cooking device together with the top plate, and used for cooking (fermentation, baking, etc.).

According to the technique described in the present specification, temperature unevenness in the storage chamber can be suppressed.

Cross-sectional perspective view of the cooling storage according to the first embodiment Cross section of the cooling storage Partially enlarged view of FIG. Cross-sectional view of the cooling storage with the top plate removed Front view of the cooling storage with the door removed Perspective view of the duct as seen from the front side Perspective view of the duct according to the second embodiment as viewed from the rear side. Partial sectional view of the cooling storage which concerns on 2nd Embodiment Partial sectional view which shows the state which a part top plate is not in an appropriate position in the cooling storage which concerns on 1st Embodiment Perspective view of the shelf support member according to the third embodiment Partial sectional view of the cooling storage which concerns on 3rd Embodiment Perspective view of the door according to the fourth embodiment as viewed from the rear side. Sectional drawing of the cooling storage which concerns on 4th Embodiment

<First Embodiment>
As the cooling storage 10 according to the first embodiment, the vertical freezer will be described with reference to FIGS. 1 to 6. A part of the drawing shows the X-axis, the Y-axis, and the Z-axis, and each axis direction is drawn so as to be a common direction in each drawing. Further, the X-axis direction is the left-right direction, the Y-axis direction is the front-back direction, and the Z-axis direction is the up-down direction.

As shown in FIGS. 1 and 2, the cooling storage 10 includes a freezer main body 11 and a machine room 15. The freezer main body 11 is a vertically long heat insulating box body, and has a structure in which a heat insulating material such as urethane foam is filled between the outer box and the inner box made of stainless steel plate as a whole. As shown in FIGS. 1 and 2, the freezer main body 11 has a leg portion 11A, a door 12, and a storage chamber 20. The legs 11A are provided on the bottom surface of the freezer main body 11 and support the freezer main body 11 from below. The storage chamber 20 is provided inside the freezer main body 11 and stores objects to be stored (food, etc.). The storage chamber 20 has a front opening 20A that allows the storage to be taken in and out. The door 12 is mounted in two upper and lower stages so that the front opening 20A can be opened and closed.

As shown in FIGS. 1 and 2, the machine room 15 is arranged above the freezer main body 11. In the machine room 15, machines (refrigerator 30, cooling fan 35, etc.) for cooling the storage chamber 20 are housed on the back side (rear side) of the front panel 15A. The refrigerating device 30 includes a compressor 31, a condenser fan, a condenser 32, and a cooler 33.

As shown in FIGS. 1 and 2, a cooler chamber 17 is arranged in the lower part of the rear side of the machine room 15. The cooler chamber 17 has a partition panel 18 at the bottom for partitioning from the storage chamber 20. In the central portion of the partition panel 18 in the left-right direction (X-axis direction), a suction port 18A for sucking the air in the storage chamber 20 into the cooler chamber 17 is provided at a position on the front side, and is provided on the back side. At the (rear side) position, an outlet 18B for blowing out the cold air in the cooler chamber 17 into the storage chamber 20 is provided.

As shown in FIGS. 1 and 2, the cooler chamber 17 houses the cooler 33 and the cooling fan 35. The cooler 33 is connected to the compressor 31 and the condenser 32 by a refrigerant pipe to form a refrigeration cycle, and generates cold air. The cooling fan 35 sucks the air in the storage chamber 20 into the cooler chamber 17 from the suction port 18A (arrow line W1 in FIG. 2), and the sucked air passes through the cooler 33 and passes through the cooler 33 to the storage chamber 18B. The air in the storage chamber 20 is circulated so as to be blown into the 20 (arrow line W2 in FIG. 2).

As shown in FIGS. 1 to 3, a plurality of stages of top plates 40, shelf columns 50, and ducts 90 are arranged in the storage chamber 20. The top plate 40 is a shallow tray having a rectangular shape in a plan view, and is arranged in a plurality of stages in the vertical direction in the storage chamber 20. The top plate 40 is made of metal and has heat resistance, and can be used as a top plate for cooking. For example, frozen bread dough manufactured in a factory or the like is placed on the top plate 40 and stored frozen. The user can take out the frozen bread dough together with the top plate 40, store the frozen bread dough together with the top plate 40 in another cooking device, and perform cooking such as fermentation and baking. The top plate 40 has a bottom plate 41 on which an object to be stored is placed, and a side plate 42 that rises diagonally upward from the outer edge of the bottom plate 41. As shown in FIGS. 2 and 3, the proper position of the top plate 40 is to be pushed in until the side plate 42 comes into contact with the duct 90 described later.

As shown in FIGS. 2 to 5, four shelf columns 50 are provided so as to extend vertically in the storage chamber 20. Of the three side surfaces 21, 22, and 23 of the storage chamber 20, two shelf columns 50 are fixed to the left side surface 21 and the right side surface 23 adjacent to the door 12, respectively. As shown in FIG. 3, the lower end 50A of each shelf column 50 is arranged at a predetermined interval G1 from the bottom surface 25 of the storage chamber 20.

Each shelf column 50 has a vertically long substantially square columnar shape, and a plurality of mounting holes 51 are formed at a constant pitch on the surface opposite to each side surface 21 and 23 of the storage chamber 20 to be fixed. A shelf receiving member (rail) 52 for mounting the top plate 40 is mounted in the mounting hole 51. As shown in FIG. 5, the shelf support members 52 are mounted in pairs on the left and right so that the top plate 40 on which the shelves are placed is in a horizontal state. The user can adjust the vertical position of the top plate 40 by appropriately selecting the mounting hole 51 for mounting the shelf receiving member 52. 1 to 5 show a mode in which the shelf support members 52 are mounted in the mounting holes 51 at the lowest position, and a plurality of shelf support members 52 are mounted in every other mounting hole 51 upward from the mounting holes 51.

As shown in FIG. 5, the duct 90 is provided on the back surface 22 (an example of the first side surface) facing the door 12 among the three side surfaces 21, 22, and 23 of the storage chamber 20. As shown in FIG. 2, the duct 90 is provided from directly below the air outlet 18B of the cooler chamber 17 to the lower part of the storage chamber 20 along the back surface 22. The space (inside the duct 90) surrounded by the back surface 22 and the duct 90 serves as a flow path for the cold air blown out from the outlet 18B. The upper and lower parts of the duct 90 are open, and the upper opening serves as an inflow port 90A into which cold air from the outlet 18B flows. Further, the lower opening of the duct 90 is located on the lower side of the storage chamber 20 so as to face the outlet 18B, and serves as an outlet 90B through which cold air flows out.

The duct 90 is made of a pressed stainless steel plate or the like, and has a main body portion 91, two side portions 92, and two flange portions 93, as shown in FIG. The main body 91 has a vertically long plate shape, and is arranged so as to face the back surface 22 with a gap. Each side portion 92 has a thin vertically long plate shape and covers between each side edge 91A of the main body portion 91 and the back surface 22. Each flange portion 93 extends along the back surface 22 from the long side portion on the back surface 22 side of each side portion 92. Further, each flange portion 93 has three insertion holes 96 arranged in the vertical direction, and the rivet 22B (FIG. 2) is inserted into the insertion holes 96 to be riveted. As a result, the duct 90 is fixed to the back surface 22.

As shown in FIG. 6, the main body 91 is provided with a plurality of first blower holes 94. The in-plane of the main body 91 is divided into two blowing regions WA and a non-blowing region NWA1. Each blowout region WA is a vertically long region near each side portion 92, and a plurality of first blower holes 94 are provided. The non-blowing region NWA1 is a vertically long region between the two blowing regions WA, and is not provided with the first blower hole 94. A bracket 22C made of sheet metal is interposed between the back surface 22 and the central portion of the main body 91 in the left-right direction (X-axis direction) in the vertical direction (FIG. 2). As shown in FIG. 6, the non-blowing region NWA1 of the main body 91 is provided with three insertion holes 96 for riveting the bracket 22C and the main body 91 side by side in the vertical direction. By interposing the bracket 22C, the duct 90 can be more stably fixed to the back surface 22.

As shown in FIGS. 5 and 6, a plurality of first ventilation holes 94 have a circular shape (round hole shape) when viewed from the side, and are provided side by side in the vertical direction (Z-axis direction) and the horizontal direction (X-axis direction). ing. As shown in FIGS. 1 and 5, at least one row of the plurality of first ventilation holes 94 overlaps with the vertically adjacent shelf receiving members 52 (and by extension, the top plate 40) in a side view. It is provided as follows. As described above, the vertical positions of the shelf support member 52 and the top plate 40 can be adjusted by appropriately selecting the positions of the mounting holes 51 for mounting the shelf support member 52. Even when the mounting hole 51 is selected, the first blower hole 94 is designed so as to overlap the top plate 40 in a side view. As a result, the cold air that has flowed into the duct 90 is blown out from the first air vent hole 94 between the top plates 40 (arrow line W3 in FIG. 2). However, as shown in FIG. 5, the first blower hole 94 is between the outlet 90B and at least the second shelf receiving member 52 (and thus the top plate 40) counting upward from the outlet 90B when viewed from the side surface. ) And the area NWA2 that overlaps between and the area NWA2 is not provided.

Further, as shown in FIG. 5, the first blower holes 94 are arranged in a grid pattern with five at a constant pitch in the vertical direction and the horizontal direction. If the shape of each of the first blower holes is vertically elongated and the holes are arranged side by side in the left-right direction, the amount of air blown out from each first blower hole increases as compared with the present embodiment. The inflowing cold air tends to be concentratedly blown out from the first air vent located in the upper part of the main body 91. As a result, the cold air does not reach between the top plates 40 on the lower side of the storage chamber 20, and temperature unevenness is likely to occur. According to the first blower hole 94 of the present embodiment, by adjusting the arrangement number of the first blower holes 94 while limiting the amount of blown air from each of the first blower holes 94, between the top plates 40. It is possible to blow out cold air of an appropriate flow rate and supply cold air to the top plate 40 on the lower side of the storage chamber 20.

As shown in FIG. 6, each side portion 92 is provided with a plurality of second blower holes 95 arranged side by side in the vertical direction.

As described above, the cooling storage 10 according to the present embodiment has a box shape having a front opening, and storage in which a plurality of stages of top plates 40 for placing objects to be stored are arranged side by side in the vertical direction. The cooler chamber 17 arranged above the chamber 20 and the storage chamber 20 and accommodating the cooler 33 for generating cold air, and the cool air arranged on the back surface 22 of the storage chamber 20 and at least the cool air generated in the cooler 33 are stored. A duct 90 that can be circulated is provided, and the cooler chamber 17 is provided with an outlet 18B for blowing cold air into the storage chamber 20, and the duct 90 is provided along the back surface 22 from directly below the outlet 18B. The duct 90 is provided up to the lower part of the storage chamber 20, and the duct 90 is provided with a plurality of first air vents 94 so as to overlap between the adjacent top plates 40 and 40 in a side view.

In this way, since the duct 90 is provided from directly below the air outlet 18B to the lower part of the storage chamber 20, the cold air generated in the cooler 33 efficiently flows into the duct 90 from the air outlet 18B. Therefore, it becomes possible to reach the lower part of the storage chamber 20. Further, since the duct 90 has a first blower hole 94 at a position where it overlaps with the adjacent top plates 40 when viewed from the side surface, a part of the cold air flowing into the duct 90 is between the first blower hole 94 and the top plate 40. Will be blown out. As a result, cold air can be supplied to the space between the top plates 40 on the lower side of the storage chamber 20, and temperature unevenness can be suppressed.

Further, the duct 90 has a main body portion 91 which is arranged so as to face the back surface 22 with a gap, and two side portions 92 which cover between the side edge 91A of the main body portion 91 and the back surface 22. Reference numeral 91 denotes a region near each side portion 92 and a region between two blowout regions WA in which a plurality of first blower holes 94 are provided, and a region between the two blowout regions WA and a plurality of first blower holes 94. It has a non-blowing area NWA1 which is not provided with. In this way, since the first air blower hole 94 of the duct 90 is provided near the side portion 92 of the duct 90, the cold air from the first air blower hole 94 is centered in the plane of the top plate 40 (bottom plate 41). It comes to be blown out between the top plates 40 from both the left and right end portions (side plates 42) side instead of the portion. As a result, even when the stored object is placed on the plate surface of the top plate 40, temperature unevenness in the in-plane direction of the top plate 40 is less likely to occur.

Further, as shown in FIG. 6, each of the two side portions 92 is provided with a plurality of second blower holes 95 arranged side by side in the vertical direction. In this way, cold air is blown out from the second air blower hole 95 as well, so that the effect of suppressing temperature unevenness in the in-plane direction of the top plate 40 can be enhanced.

Further, the duct 90 is provided with an inflow port 90A into which cold air from the outlet 18B flows in, and an outflow port 90B provided on the lower side of the storage chamber 20 so as to face the inflow port 90A. In the duct 90, a plurality of first air vents 94 are not provided in the region NWA2 that overlaps between the outlet 90B and the top plate 40 at least in the second stage above the outlet 90B in a side view. It is supposed to be. Generally, when the outlet 90B is provided on the lower side of the storage chamber 20 of the duct 90, the top plate 40 (and the object to be stored on the top plate 40) on the lower side of the storage chamber 20 is affected by the cold air from the outlet 90B. It's easy to get too cold. Therefore, cold air is blown between the top plates 40 in the vicinity of the outlet 90B (specifically, between the outlet 90B and the top plate 40 at least in the second stage counting upward from the outlet 90B). By not providing the first air vent hole 94, it is possible to suppress a significant temperature drop on the lower side of the storage chamber 20. As a result, it is possible to prevent the stored object from being remarkably cooled because the cold air does not directly hit the stored object on the bottom plate 40.

Further, the storage chamber 20 is provided with a plurality of shelf columns 50 on which a plurality of shelf receiving members 52 for mounting the plurality of stages of the top plate 40 can be mounted so as to extend in the vertical direction. The lower end 50A of each shelf column 50 is arranged with a predetermined gap G1 from the bottom surface 25 of the storage chamber 20. By doing so, a gap is formed between the top plate 40 at the bottom and the bottom surface 25 of the storage chamber 20, so that the cold air from the outlet 90B is transmitted through the bottom surface 25 of the storage chamber 20. .. As a result, the flow rate of the cold air flowing into the space between the top plates 40 on the lower side of the storage chamber 20 is reduced, and the top plate 40 (and the stored material on the top plate 40) on the lower side of the storage chamber 20 becomes too cold. It will be possible to more reliably suppress the storage. Further, the gap facilitates cleaning of the bottom surface 25 of the storage chamber 20.

<Second Embodiment>
The cooling storage 110 according to the second embodiment will be described with reference to FIGS. 7 to 9. In the cooling storage 110, the duct 190 has a guide portion 80 for allowing the cold air in the duct 190 to flow toward the first blower hole 94. The other configurations are the same as those in the first embodiment, and the description of the same configurations, actions, and effects will be omitted.

As shown in FIG. 7, the duct 190 has a plurality of guide portions 80 on the surface (back surface) 91C on the back surface 22 side of the main body portion 91. Each guide portion 80 has an elongated shape extending in the left-right direction. As shown in FIG. 8, each guide portion 80 has a substantially L-shape in cross section, and has a fixing portion 81 and an inclined portion 82. The internal angle of the L-shape composed of the fixing portion 81 and the inclined portion 82 is 90 degrees or more. The fixing portion 81 has a plate shape and is fixed to the back surface 91C by welding or the like. The inclined portion 82 has a plate shape that is inclined diagonally upward so as to be separated from the back surface 91C from the upper end of the fixing portion 81. Each guide portion 80 is provided so that the lower end of the inclined portion 82 (the upper end of the fixing portion 81) is located below the first ventilation hole 94. The first blower holes 94 are arranged in a grid pattern with five at a constant pitch in the vertical direction and the horizontal direction, and when a total of 25 first blower holes 94 forming the grid pattern are designated as the first blower hole group 98. , Each guide portion 80 is provided on the lower side of each first blower hole group 98.

By providing the guide portion 80 in this way, as shown by the white arrow in FIG. 8, the cold air descending in the duct 90 comes into contact with the inclined portion 82, so that it easily flows into the first blower hole 94. Become. Further, the inclined portion 82 causes cold air to flow into the first blower hole 94 along the inclined portion 82 and blow out toward the front side (door 12 side) of the storage chamber 20. If the guide portion 80 is not provided and the top plate 40 is not pushed to an appropriate position (the side plate 42 is not brought into contact with the duct 90), the air flow in the storage chamber 20 is shown in FIG. It looks like a white arrow line. An air flow as shown by the white arrow line W5 occurs between the top plates 40, and it becomes difficult for cold air to flow between the top plate 40 that is insufficiently pushed in and the top plate 40 below the top plate 40. , There is a risk of temperature unevenness. According to the guide unit 80, such temperature unevenness can be suppressed.

<Third Embodiment>
The cooling storage 210 according to the third embodiment will be described with reference to FIGS. 10 and 11. In the cooling storage 210, the shelf receiving member 252 has a first protruding portion 253. The other configurations are the same as those in the first embodiment, and the description of the same configurations, actions, and effects will be omitted.

As shown in FIG. 10, the shelf receiving member 252 further has a first protruding portion 253 in addition to the mounting portion 52A and the mounting portion 52B similar to those in the first embodiment. The mounting portion 52A has a plate shape and mounts the top plate 40. The mounting portion 52B is inserted into the mounting hole 51 of the shelf pillar 50, whereby the shelf receiving member 252 is mounted on the shelf pillar 50. The first projecting portion 253 is provided at the end of the mounting portion 52A on the door 12 side (opposite side to the duct 90) in the front-rear direction (Y-axis direction) so as to project upward. Although the first projecting portion 253 is provided on both of the pair of shelf receiving members 252 in FIGS. 10 and 11, it is sufficient that the first protruding portion 253 is provided on either one of the shelf receiving members 252.

According to the present embodiment, as shown in FIG. 11, when the top plate 40 is not pushed to an appropriate position (the side plate 42 does not come into contact with the duct 90), the bottom plate 41 of the top plate 40 protrudes first. It will be placed on the part 253. As a result, the top plate 40 is not tilted and becomes horizontal, so that the user can recognize that the top plate 40 is insufficiently pushed. As described above, when the top plate 40 is not pushed to the proper position, the air flow in the storage chamber 20 becomes as shown by the white arrow in FIG. 9, and there is a possibility that temperature unevenness may occur. According to the shelf support member 252, the user recognizes that the top plate 40 is insufficiently pushed in and pushes the top plate 40 to an appropriate position, so that such temperature unevenness can be suppressed.

<Fourth Embodiment>
The cooling storage 310 according to the fourth embodiment will be described with reference to FIGS. 12 and 13. In the cooling storage 310, the door 312 has a second protrusion 313. The other configurations are the same as those in the first embodiment, and the description of the same configurations, actions, and effects will be omitted.

As shown in FIGS. 12 and 13, the door 312 has a second protruding portion 313 that projects toward the top plate 40 side (rear side in the Y-axis direction) on the back surface (the surface on the storage chamber 20 side) 312A. .. The second protruding portion 313 projects from the back surface 312A so as to extend in the vertical direction. The second protruding portion 313 and the back surface 312A are made of resin, and the second protruding portion 313 is integrally formed with the back surface 312A. As shown in FIG. 13, the protrusion length L313 of the second protrusion 313 is set to be a length that abuts on the side plate 42 of the top plate 40 when the door 312 is closed.

According to the present embodiment, even when the top plate 40 is not pushed into the proper position with the door 312 open, the top plate 40 is pushed by the second protrusion 313 when the door 312 is closed. Will come to be. More specifically, the end portion 313A on the top plate 40 side of the second protruding portion 313 comes into contact with the side plate 42 on the door 312 side of the top plate 40, and the top plate 40 is pushed to an appropriate position. As described above, when the top plate 40 is not pushed to the proper position, the air flow in the storage chamber 20 becomes as shown by the white arrow in FIG. 9, and there is a possibility that temperature unevenness may occur. According to the door 312, the top plate 40 is pushed to an appropriate position, so that such temperature unevenness can be suppressed.

<Other Embodiments>
The techniques described herein are not limited to the embodiments described above and in the drawings, and for example, the following embodiments are also included in the technical scope of the techniques described herein.

(1) The illustration of the number and size of the shelf support members 52, 252 and the top plate 40 is an example, and other specifications may be used. Further, the number of the first blower holes 94 and the second blower holes 95 of the duct 90 can be appropriately changed accordingly.

(2) The bracket 22C may not be interposed between the duct 90 and the back surface 22.

(3) The guide portion 80 may be provided on the back surface 22 of the storage chamber 20.

(4) The length of the first protruding portion 253 of the shelf receiving member 252 in the left-right direction (X-axis direction) may be smaller than the length of the mounting portion 52A in the left-right direction (X-axis direction). ..

(5) A plurality of the second projecting portions 313 may be provided side by side in the left-right direction (X-axis direction) on the back surface 312A of the door 312.

(6) In the second embodiment, the guide portion 80 is provided, in the third embodiment, the first protruding portion 253 is provided, and in the fourth embodiment, the second protruding portion 313 is provided. Each of these parts may be provided in combination.

(7) The doors 12, 312 may be provided at one or three or more instead of two at the top and bottom.

10,110,210,310: Cooling storage, 12,312: Door, 17: Cooler room, 18B: Air outlet, 20: Storage room, 20A: Front opening, 22: Back (first side surface), 33: Cooling Vessel, 40: Top plate, 50: Shelf pillar, 52,252: Shelf receiving member, 80: Guide part, 82: Inclined part,
90,190: Duct, 90A: Inlet, 90B: Outlet, 91: Main body, 92: Side, 94: First blower hole, 95: Second blower hole, 253: First protrusion, 313: First 2 Protruding part, NWA1: Non-blowing area, WA: Blow-out area

Claims (10)

A box-shaped storage chamber with a front opening, and a storage chamber in which multiple top plates for placing items to be stored are arranged side by side in the vertical direction.
A cooler chamber located above the storage chamber and accommodating a cooler that generates cold air,
A duct arranged on the first side surface of the storage chamber and capable of circulating at least the cold air generated in the cooler is provided.
The cooler chamber is provided with an outlet for blowing cold air into the storage chamber.
The duct is provided from directly below the air outlet to the lower part of the storage chamber along the first side surface.
A cooling storage in which a plurality of first air vents are provided in the duct so as to overlap between adjacent top plates in a side view. The duct has a main body portion that is arranged so as to face the first side surface with a gap, and two side portions that cover between the side edge of the main body portion and the first side surface.
The main body is a region close to each side portion and is a region between two blowing regions provided with the plurality of first blowing holes and the two blowing regions, and the plurality of first blowing regions are provided. The cooling storage according to claim 1, further comprising a non-blowing region without holes. The cooling storage according to claim 2, wherein a guide portion for flowing cold air in the duct toward the plurality of first air vents is provided on the first side surface side of the main body portion. The cooling storage according to claim 3, wherein the guide portion has an inclined portion that is inclined diagonally upward so as to be separated from the main body portion. The cooling storage according to any one of claims 2 to 4, wherein a plurality of second air vents are provided on each of the two side portions. The duct is provided with an inflow port into which cold air from the air outlet flows in, and an outflow port provided on the lower side of the storage chamber so as to face the inflow port.
In the duct, the plurality of first air vents are not provided in a region overlapping between the outlet and the top plate at least in the second stage above the outlet in a side view. The cooling storage according to any one of claims 1 to 5. The storage chamber is provided with a plurality of shelf columns on which a plurality of shelf receiving members for mounting the plurality of stages of top plates can be mounted so as to extend in the vertical direction.
The cooling storage according to claim 6, wherein the lower ends of the shelf columns are arranged with a predetermined gap from the bottom surface of the storage chamber. In the storage chamber, a pair of shelf support members for mounting each of the top plates are arranged side by side in the vertical direction.
According to any one of claims 1 to 7, at least one of the pair of shelf-supporting members has a first projecting portion that projects upward at an end opposite to the duct. Described cooling storage. A door provided to cover the front opening is provided.
The cooling storage according to any one of claims 1 to 8, wherein the door has a second protruding portion protruding toward the top plate side on the surface on the storage chamber side. The cooling storage according to any one of claims 1 to 9, wherein the top plate has heat resistance and can be used as a top plate for cooking.

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