JP2020112275A - Cooling storehouse - Google Patents

Abstract

To provide a cooling storehouse capable of suppressing a situation in which water on a surface facing upward of inner surfaces of an outer case approaches the rear side.SOLUTION: There are provided: a heat insulation box 11; a storage box 30; a cooler 27; and a cooling fan 60 supplying air cooled by the cooler 27 to a cold air passage S1. The storage box 30 comprises: a bottom wall part 31 extending in a form of being inclined downward as it approaches forward; a first extended wall part 41 extending downward from the forward end of the bottom wall part 31; and a second extended wall part 42 extending from the lower end of the first extended wall part 41 to the rear side. The heat insulation box 11 includes a surface configuration wall part 70 for configuring a surface 15C. The bottom wall part 31 is oppositely disposed in a state of forming a third passage S13 between itself and the surface configuration wall part 70. A part to be a rear side of the second extended wall part 42 in the surface 15C is provided with a second extended part 82 raised upward from the surface 15C and having a longitudinal shape extending in the left-right direction of a cooling storehouse 10.SELECTED DRAWING: Figure 7

Description

The present invention relates to a cold store.

BACKGROUND ART Conventionally, as a cooling storage, there is known one in which an inner box (storage box 50) having a storage chamber is housed inside an outer box (main body 10) which is a heat insulating box (Patent Document 1 below). In Patent Document 1, by driving a cooling fan (a fan in the refrigerator), cold air is circulated and supplied to a cool air passage provided between the outer box and the inner box, and the wall surface of the inner box is cooled, thereby indirectly. Describes a configuration in which the storage compartment is cooled.

JP, 2008-32258, A

In the above structure, water generated by dew condensation in the storage chamber falls on the upper surface of the bottom wall of the inner box. Since the bottom wall is inclined downward as it goes forward, water flows forward along the upper surface of the bottom wall, and from the front end of the bottom wall (opening edge of the inner box) to the inner surface of the outer box (more Specifically, it falls on the inner surface facing upward). When the water that has fallen on the inner surface of the outer box flows backward, water gradually accumulates at the back of the space between the inner surface of the outer box and the bottom wall of the inner box (the space that constitutes the cold air passage). , Cause odor and rust.

The technology disclosed in the present specification has been completed based on the above circumstances, and it is possible to suppress the situation where water on the surface of the inner surface of the outer box facing upward goes backward. The purpose is to provide a cold store.

As a means for solving the above problems, the cooling storage disclosed in the present specification is a box-shaped outer box having a box shape opened to the front, and a box shape having a storage chamber opened to the front. An inner box housed inside the outer box in a state where a space is formed between the inner box and the inner surface of the box, a cooler arranged outside the inner box, and a cooler arranged outside the inner box. A cooling fan that supplies air cooled by a container to the space, the inner box having a bottom wall extending downwardly and slanting toward the front, and a first wall extending downward from a front end of the bottom wall. A surface forming wall that includes a first extending wall portion and a second extending wall portion that extends rearward from a lower end of the first extending wall portion, and the outer box constitutes a surface of the inner surface that faces upward. The bottom wall portion is disposed above the surface forming wall portion, and is arranged to face the surface forming wall portion so as to form at least a part of the space. The extended wall portion is supported by the upward-facing surface of the surface-constituting wall portion, and the upward-facing surface is located at a position rearward of the second extended wall portion on the upward-facing surface. It is characterized in that it is provided with a longitudinal rising portion that rises from above and extends in the left-right direction of the cooling storage.

In the above configuration, when water is generated due to dew condensation in the storage chamber, the generated water flows down to the upper surface of the bottom wall portion, then flows forward along the upper surface of the bottom wall portion, and then the inner surface of the outer box. On a surface facing upward (a surface formed by the surface-constituting wall portion, referred to as “a surface facing upward” in the following description), it flows down to the front portion of the first extending wall portion. If water collects on the surface that faces upward, and if the water goes rearward through the gap between the second extending wall and the surface that faces upward, the water goes further rearward by the rising portion. The situation can be suppressed. For this reason, it is possible to suppress the situation in which water accumulates at a position behind the rising portion on the surface facing upward.

Further, a sealing material may be provided at a boundary portion between the rising portion and the upward facing surface. It is possible to prevent water from entering through the gap between the rising portion and the surface facing upward. Further, since the rising portion is arranged behind the first extending wall portion, the sealing material is arranged behind the first extending wall portion. By doing so, the sealing material can be made invisible to the user, and the designability can be further enhanced.

Further, the outer box is arranged in front of the surface-constituting wall part, and forms a front wall part of the outer box, a flange part extending rearward from an upper end of the front wall part, and the flange. A joiner that connects a rear end of the portion and a front end of the surface forming wall portion, and an upper end of the rising portion may be disposed at a position higher than an upper surface of the joiner. .. In this way, if water is accumulated in the portion between the joiner and the rising portion on the surface facing upward and the water overflows, the water overflows beyond the relatively lower upper surface of the joiner. That is, the overflowed water flows forward (outside the outer box) from the opening of the outer box. Thereby, when water collects in the portion between the joiner and the rising portion, it is possible to suppress the situation where the water exceeds the upper end of the rising portion and enters the rear of the rising portion.

In addition, the rising portion may be an inclined wall portion that is inclined upward as it goes rearward. When a large load is applied to the bottom wall portion by the stored material stored in the storage chamber, the bottom wall portion may bend and come into contact with the upper end of the rising portion. If the rising portion is an inclined wall portion, when the bottom wall portion comes into contact with the upper end of the rising portion, the upper end of the rising portion is easily bent and deformed downward, so that the upper end of the rising portion and the bottom wall portion interfere with each other. The situation can be suppressed, and the situation in which the contact portion of the bottom wall portion with the upper end of the rising portion is deformed can be suppressed. Note that the upper end of the rising portion needs to be set at a height that does not interfere with the bottom wall portion. Here, since the bottom wall portion extends in a downward sloping shape toward the front (in other words, a sloping inclination toward the rear), the upper end of the rising portion is arranged further rearward by arranging the upper end of the rising portion further rearward. Can be set higher, and the situation where water exceeds the rising portion can be more reliably suppressed.

Further, an extending portion extending rearward is provided at an upper end of the rising portion, and the bottom wall portion may be supported from below by the extending portion. By supporting the bottom wall portion from below by the extended portion, the number of dedicated members for supporting the bottom wall portion can be reduced, and the size and plate thickness of the dedicated member can be reduced, which is advantageous for manufacturing. The cost can be reduced.

In addition, a plate-shaped member that is long in the left-right direction is provided at a position rearward of the second extending wall portion on the upward-facing surface, and the plate-shaped member includes the rising portion and the rising portion. An abutting portion that extends rearward from the lower end of the surface, extends linearly along the left-right direction, and abuts against the upward-facing surface. The curved shape is arranged upward as compared to the central portion in the direction, the plate-shaped member extends over the entire length in the left-right direction in the surface constituting wall portion, the plate-shaped member, the Notches may be formed to avoid interference with both ends.

If both ends of the surface-constituting wall portion are arranged higher than the central portion, and if both ends of the surface-constituting wall portion interfere with the plate-shaped member, the contact portion and the upper portion at the center portion in the left-right direction There is a concern that there will be a gap between the surface facing the and the water will flow backward through this gap. By forming the notch in the plate-shaped member, it is possible to suppress the situation in which both ends of the surface forming wall portion interfere with the plate-shaped member, so that it is possible to suppress the occurrence of a gap between the abutting portion and the surface facing upward. it can.

ADVANTAGE OF THE INVENTION According to this invention, the cooling storage which can suppress the situation where the water in the surface which turns up among the inner surfaces of an outer box goes backward can be provided.

The front view which shows the cooling storage which concerns on Embodiment 1 of this invention. Perspective view showing an insulation box and a storage box Sectional view showing a cooling storage Perspective view showing the storage room FIG. 4 is a perspective view showing the vicinity of the plate-shaped member in FIG. Perspective view showing the vicinity of the opening of the heat insulation box Sectional view showing the vicinity of the opening of the insulation box Perspective view showing the vicinity of the lower left corner of the opening of the heat insulation box Sectional drawing which shows the plate-shaped member which concerns on Embodiment 2. Sectional drawing which shows the plate-shaped member which concerns on Embodiment 3. Sectional drawing which shows the plate-shaped member which concerns on Embodiment 4. Front view showing the manufacturing process of the insulation box The figure which shows the state filled with the heat insulating material in the manufacturing process of a heat insulating box. Sectional drawing which shows the manufacturing process of the heat insulation box The front view which shows the plate-shaped member and surface structure wall part which concern on Embodiment 5. A perspective view showing a plate member according to a fifth embodiment. Front view showing a state in which the plate-shaped member and the surface forming wall portion are separated from each other Front view showing a comparative example

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In the present embodiment, a 4-door type cold storage 10 is exemplified as the cooling storage. As shown in FIG. 1 to FIG. 3, the cooling storage 10 is housed inside the heat insulating box 11, the machine room 20 arranged above the heat insulating box 11, the heat insulating box 11, and the storage room 30A. And a storage box 30 (inner box) constituting the. As shown in FIG. 2, the heat insulation box 11 has an opening 11</b>F that is open to the front and has a box shape. Specifically, as shown in FIG. 3, the heat insulating box 11 includes a box-shaped exterior member 11A made of a plurality of metal plates and a plurality of metal plates that are accommodated inside the exterior member 11A with a space therebetween. And a heat insulating material 11C filled between the exterior member 11A and the interior member 11B.

The storage box 30 is in the shape of a box having a storage chamber 30A that is open to the front. The storage box 30 is configured by combining a plurality of heat conductive metal plates such as a stainless steel plate, and the storage box 30 is one size smaller than the internal space of the heat insulation box 11. It is housed inside the heat insulating box 11 in a state where a cold air passage S1 (space, see FIG. 1) is formed between the inside and the inner surface of the heat insulating box 11.

As shown in FIG. 2, the storage box 30 includes a bottom wall portion 31, a pair of left and right side wall portions 32, 32, a ceiling wall portion 33 that constitutes the ceiling of the storage chamber 30A, and a rear wall portion 34. The cold air passage S1 described above includes, as shown in FIGS. 1 and 3, a first passage S11, a second passage S12, a third passage S13, and a pair of fourth passages S14 and S14. As shown in FIG. 3, the first passage S11 is a space formed between the downward facing surface 15A of the heat insulating box 11 and the outer surface of the ceiling wall portion 33. The second passage S12 is a space formed between the front surface 15B of the inner surface of the heat insulating box 11 and the outer surface of the rear wall portion 34.

As shown in FIGS. 3 and 4, the third passage S13 includes a bottom wall 15C and a bottom surface 15C (a top surface of the inner surface of the outer box, which faces upward). It is a space formed between the outer surface of the portion 31 and the outer surface. As shown in FIG. 1, the fourth passage S<b>14 is a space formed between the side surface 32</b>D (see FIG. 2) of the inner surface of the heat insulation box 11 and the side wall portion 32. It is provided corresponding to each of 32 and 32. The inner surface (the surface 15A, the surface 15B, the surface 15C, and the surface 15D) of the above-described heat insulating box 11 is configured by each panel member that configures the interior member 11B.

As shown in FIG. 1, a pair of left and right doors 13 and 13 arranged in two sets in the vertical direction are rotatably attached to the heat insulating box 11, and the storage chamber 30A has a structure that can be opened and closed by the door 13. Has become. In the following description, the door 13 side will be described as the front side, and the side opposite to the door 13 will be described as the rear side. Further, the left-right direction (the left-right direction in FIG. 1) in the front view (the state where the cooling storage 10 is viewed from the front side) is the left-right direction of the cooling storage 10.

As shown in FIG. 3, the machine room 20 is provided with a cooling device 21. The cooling device 21 includes a condenser 22, a condenser fan 23, and a compressor 24. The condenser 22, the condenser fan 23, and the compressor 24 are provided on a heat insulating base 26. A cooler 27 is provided on the lower surface of the base 26. The condenser 22, the condenser fan 23, the compressor 24, and the cooler 27 are unitized by being attached to the base 26.

The base 26 is attached to the heat insulating box 11 so as to close the window hole 16A formed in the ceiling wall portion 16 of the heat insulating box 11 from above. An air duct 50 that also serves as a drain pan is provided in the ceiling wall portion 16 of the heat insulating box 11, and a cooler chamber S2 is formed above the air duct 50. The cooler 27 is provided so as to project downward from the base 26 and is housed in the cooler chamber S2. The cooler 27 is circulatively connected to the cooling device 21 by a refrigerant pipe (not shown) to form a known cooling cycle.

A suction port 50A is formed in the front portion of the air duct 50, and an air outlet 50B is formed in the rear portion thereof. A cooling fan 60 is provided at the suction port 50A. The cooling fan 60 sucks the air in the cool air passage S1 into the cooler chamber S2 and supplies the air cooled by the cooler 27 to the cool air passage S1. The cooler 27 and the cooling fan 60 are arranged outside the storage box 30, and more specifically, above the storage box 30 (ceiling wall portion 33).

Then, when the cooling fan 60 is driven while operating the cooling device 21 (the compressor 24 and the condenser fan 23), the air in the first passage S11 of the cool air passage S1 is sucked by the cooling fan 60 from the suction port 50A into the cooler chamber S2. Are sucked into the air and are cooled by heat exchange when passing through the cooler 27. The air cooled by the cooler 27 (cold air) is blown from the outlet 50B to the second passage S12, then to the third passage S13, and then to the fourth passage S14 from the third passage S13 (FIG. 1). (See the arrow line L1 in FIG. 1), and then from the fourth passage S14 to the first passage S11 (see the arrow line L2 in FIG. 1).

In this way, the cool air is circulated and supplied into the cool air passage S1, and the wall parts (the bottom wall part 31, the side wall part 32, the ceiling wall part 33, the rear wall) that configure the storage box 30 by this cool air. By cooling the part 34), the storage chamber 30A is indirectly cooled. Therefore, the inside of the storage chamber 30A is cooled to a predetermined temperature while maintaining high humidity. Note that such a cold storage 10 may be called a constant temperature and high humidity storage. Further, in the storage room 30A, as shown in FIG. 3, a shelf network 30B for arranging stored items (foods, etc.) over a plurality of stages is arranged.

Next, the configuration near the bottom of the storage chamber 30A will be described. As shown in FIG. 4, the bottom wall 31 of the storage box 30 extends in a downwardly sloping manner toward the front. Then, as shown in FIG. 5, the storage box 30 includes a first extending wall portion 41 extending downward from a front end of the bottom wall portion 31 and a second extending portion extending rearward from a lower end of the first extending wall portion 41. And a wall portion 42. The bottom wall portion 31, the first extended wall portion 41, and the second extended wall portion 42 are configured by bending one panel member 40. The 1st extended wall part 41 and the 2nd extended wall part 42 have comprised the shape long in the left-right direction.

The heat insulation box 11 includes a surface forming wall portion 70 that forms a surface 15C of the inner surface of the heat insulation box 11 that faces upward. In other words, the surface 15C is formed by the upper surface of the surface forming wall portion 70. The surface constituting wall portion 70 is one of the plurality of panel members constituting the interior member 11B described above, and covers the bottom wall portion 31 from below. In addition, the surface constituting wall portion 70 is, for example, a wall portion extending along a horizontal plane. As shown in FIGS. 2 and 6, the surface 15C is provided with support members 17A and 17B configured by bending a plate material, and the bottom wall portion 31 is supported by the support members 17A and 17B that are spacers. ing. Therefore, as shown in FIG. 5, the bottom wall portion 31 is arranged above the surface forming wall portion 70, and is provided between the bottom wall portion 31 and the surface forming wall portion 70 in the third passage S13 (of the outer box and the inner box). A part of the space between) is formed so as to face each other. That is, the surface 15C is a facing surface that is arranged to face the bottom wall portion 31 in the surface forming wall portion 70.

As shown in FIG. 5, the second extended wall portion 42 is supported by the surface 15C (the upper surface of the surface forming wall portion 70, one surface of the surface forming wall portion 70). That is, the surface 15C is a contact surface that contacts the second extended wall portion 42. Then, on the surface 15C, a plate-shaped member 80 that is long in the left-right direction is provided at a position behind the second extended wall portion 42. The plate-shaped member 80 has an L shape in a cross-sectional view, is connected to the first extension portion 81 attached to the surface 15C, and is connected to the front end of the first extension portion 81, and rises upward from the surface 15C. The extended portion 82 (the rising portion). The first extending portion 81 is in contact with the surface 15C on the lower surface thereof. The first extending portion 81 and the second extending portion 82 each have a longitudinal shape extending in the left-right direction of the cooling storage 10. Further, as shown in FIG. 7, a sealing material 90 (caulking material) is provided at the boundary between the second extending portion 82 and the surface 15C. As a result, the gap between the second extended portion 82 and the surface 15C is closed by the sealing material 90. The sealing material 90 (hatched portion in FIG. 6) is provided over the entire length of the second extending portion 82, as shown in FIG. In addition, it is preferable that the second extending portion 82 is brought closer to the second extending wall portion 42, and for example, the distance Y1 (the distance Y1 between the second extending wall portion 42 and the second extending portion 82 in the front-rear direction). It is more preferable to set (see FIG. 7) to 7 mm or less. The left side of FIG. 7 is the front side, and the right side is the rear side.

As shown in FIG. 7, the front end portion 71 of the surface forming wall portion 70 has a step shape higher than that of a portion (main body portion 72) forming the surface 15C. Further, the heat insulating box 11 includes a front wall portion 12 forming a part of the front surface thereof, and a flange portion 12A extending rearward from the upper end of the front wall portion 12. The rear end portion and the front end portion 71 of the flange portion 12A are connected by a joiner 18 (connection frame) made of synthetic resin. In other words, the joiner 18 is a member that is provided at the front end portion 71 of the surface forming wall portion 70 and forms an opening edge portion of the opening portion 11F. The upper end 82A of the second extending portion 82 is arranged at a position higher than the upper surface 18A of the joiner 18.

Further, as shown in FIG. 8, a corner cover 14 made of synthetic resin is provided at the corner of the opening 11F. The corner cover 14 is arranged so as to cover the boundary between the bottom wall 31 and the side wall 32 and the boundary between the joiner 18 and the joiner 19. The joiner 18 extends in the left-right direction, and the joiner 19 extends in the up-down direction.

Next, the effect of this embodiment will be described. In the present embodiment, by supplying the air cooled by the cooler 27 to the cool air passage S1, the storage box 30 can be cooled and the storage chamber 30A can be indirectly cooled. Along with this, water generated by dew condensation in the storage chamber 30A flows down to the upper surface of the bottom wall portion 31, then flows forward along the upper surface of the bottom wall portion 31, and then the surface of the surface forming wall portion 70. 15C (more specifically, the portion of the surface 15C on the front side of the first extended wall portion 41). The water temporarily accumulated on the surface 15C of the surface forming wall portion 70 (more specifically, the portion between the front end portion 71 and the first extending wall portion 41) is the surface of the second extending wall portion 42 and the surface forming wall portion 70. When it goes rearward through the gap of 15C, the second extending portion 82 can prevent the water from going further rearward. For this reason, it is possible to suppress the situation in which water accumulates at a location behind the second extending portion 82 on the surface 15C of the surface forming wall portion 70.

Further, a sealing material 90 is provided at the boundary between the second extending portion 82 and the surface 15C. As a result, it is possible to prevent water from entering through the gap between the second extending portion 82 and the surface 15C and heading to the rear of the second extending portion 82. Further, since the second extending portion 82 is arranged behind the first extending wall portion 41, the sealing material 90 is arranged behind the first extending wall portion 41. By doing so, the sealing material 90 can be made invisible to the user, and the designability can be further improved.

As shown in FIG. 8, if the sealing material 190 (the shaded portion in FIG. 8) is provided at the boundary between the first extended wall portion 41 and the surface 15C, the first extended wall portion 41 and It is possible to prevent water from going backward through the gap between the surfaces 15C. However, since the left and right end portions of the first extended wall portion 41 are covered with the corner cover 14, it is necessary to provide a sealing material also on the peripheral end portion of the corner cover 14, which increases the number of steps. On the other hand, since the second extending portion 82 has a straight shape that is long in the left-right direction, the seal material 90 can be easily provided (caulking material is applied) over the entire length thereof.

The heat insulating box 11 is arranged in front of the surface forming wall portion 70 and forms a part of the front surface of the heat insulating box 11, a flange portion 12A extending rearward from the upper end of the front wall portion 12, and a flange portion. The joiner 18 that connects the rear end portion of the 12A and the front end portion of the surface forming wall portion 70 is provided, and the upper end of the second extending portion 82 is arranged at a position higher than the upper surface 18A of the joiner 18.

By doing so, if water collects in the portion between the joiner 18 and the second extending portion 82 on the surface 15C of the surface forming wall portion 70 and the water overflows, the upper surface of the joiner 18 that is relatively low. Water will overflow beyond 18A. That is, the overflowed water flows forward (outside the heat insulating box 11) from the opening 11F of the heat insulating box 11. As a result, when water collects in a portion between the joiner 18 and the second extending portion 82, the water exceeds the upper end 82A of the second extending portion 82 and enters the rear of the second extending portion 82. Can be suppressed.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIG. The same parts as those in the above-described embodiment are designated by the same reference numerals, and duplicate description will be omitted. In this embodiment, the configuration of the plate-shaped member is different from that of the above-described embodiment. As shown in FIG. 9, the plate-shaped member 280 of the present embodiment includes a first extension portion 81 and a second extension portion 282. The second extending portion 282 (the rising portion) is an inclined wall portion that is inclined upward as it goes rearward.

When a large load is applied to the bottom wall portion 31 by the stored material stored in the storage chamber 30A, the bottom wall portion 31 may bend and come into contact with the upper end 282A of the second extending portion 282. If the second extending portion 282 is an inclined wall portion, when the bottom wall portion 31 contacts the upper end 282A of the second extending portion 282, the upper end 282A of the second extending portion 282 is easily bent and deformed downward. Therefore, the situation in which the upper end 282A of the second extending portion 282 and the bottom wall portion 31 interfere can be suppressed, and the situation in which the contact portion of the bottom wall portion 31 with the upper end 282A of the second extending portion 282 is deformed is suppressed. can do.

Further, the upper end 282A of the second extending portion 282 needs to be set at a height that does not interfere with the bottom wall portion 31. Here, since the bottom wall portion 31 extends in a downwardly sloping shape toward the front (in other words, an upward sloping shape toward the rear), the upper end 282A of the second extending portion 282 should be arranged further rearward. Thus, the upper end 282A of the second extending portion 282 can be set higher, and the situation in which water exceeds the second extending portion 282 can be more reliably suppressed.

9 illustrates the case where the lower end of the second extending portion 282 is located at the same position as the lower end of the second extending portion 82 of the first embodiment in the front-rear direction, the present invention is not limited to this. As shown in FIG. 9, when the positions of the lower ends in the front-rear direction are the same, the upper end 282A of the second extending portion 282 can be arranged rearward of the upper end 82A of the second extending portion 82. , And can be arranged at a position higher than the upper end 82A of the second extending portion 82.

<Embodiment 3>
Next, a third embodiment of the present invention will be described with reference to FIG. The same parts as those in the above-described embodiment are designated by the same reference numerals, and duplicate description will be omitted. In this embodiment, the configuration of the plate-shaped member is different from that in each of the above-described embodiments. As shown in FIG. 10, the plate-shaped member 380 of this embodiment includes a first extending portion 81 and a second extending portion 382. The second extending portion 382 (the rising portion) is an inclined wall portion that is inclined upward as it goes rearward. If the second extending portion 382 is an inclined wall portion that is inclined upward as it goes rearward as in the present embodiment, the second extending portion 382 can be moved toward the second extending wall portion 42 by bringing the lower end of the second extending portion 382 closer to the second extending portion 382. The amount of water accumulated between the installation wall portion 42 and the second extended portion 382 can be further reduced.

10 illustrates the case where the upper end of the second extending portion 382 has the same height as the upper end of the second extending portion 82 of the first embodiment, the present invention is not limited to this. As shown in FIG. 10, when the heights of the upper ends are the same, the lower end 382B of the second extending portion 382 is larger than the lower end of the second extending portion 82 of the first embodiment in the second extending wall. It can be brought closer to the portion 42.

<Embodiment 4>
Next, a fourth embodiment of the present invention will be described with reference to FIG. The same parts as those in the above-described embodiment are designated by the same reference numerals, and duplicate description will be omitted. In this embodiment, the configuration of the plate-shaped member is different from that of the above-described embodiment. As shown in FIG. 11, the plate-shaped member 480 of the present embodiment includes a first extended portion 81, a second extended portion 82, and a third extended portion 483. The third extending portion 483 (extending portion provided at the upper end of the rising portion and extending rearward) is provided at the upper end of the second extending portion 82 (standing portion) and extends rearward. The bottom wall portion 31 is supported from below by the third extending portion 483. By supporting the bottom wall portion 31 from below by the third extending portion 483, the number of dedicated members (supporting members 17A and 17B) for supporting the bottom wall portion 31 can be reduced, and the size of the dedicated member can be reduced. It is also possible to reduce the plate thickness and the plate thickness, and to reduce the manufacturing cost.

<Fifth Embodiment>
Next, a fifth embodiment of the present invention will be described with reference to FIGS. The same parts as those in the above-described embodiment are designated by the same reference numerals, and duplicate description will be omitted. The present embodiment is different from the above embodiments in that a cutout portion 593 (see FIG. 16) is formed in the plate member. Before describing the configuration of the plate-shaped member 580 of the present embodiment, a method of manufacturing the heat insulating box 11 will be described with reference to FIGS. 12 to 14. As shown in FIG. 13, the heat insulating box 11 can be manufactured by foaming and filling a heat insulating material 11C (such as urethane foam resin) between a box-shaped exterior member 11A and a box-shaped interior member 11B.

When the heat insulating material 11C foams, it is necessary to press the inner surface (the surface 15A, the surface 15B, the surface 15C, the surface 15D) of the heat insulating box 11 using the pressing jig 590. As shown in FIGS. 12 and 13, the holding jig 590 includes a jig body 591 and four holding portions 592 that are arranged so as to face each inner surface of the heat insulating box 11. Each pressing portion 592 is movable back and forth with respect to the jig body 591. As shown in FIGS. 12 and 13, the four sides (including the joiners 18 and 19) forming the opening 11F of the heat insulating box 11 are closer to each side than the respective surfaces (the surface 15A, the surface 15C, and the surface 15D) of the heat insulating box 11. It is arranged inside (the side close to the center A1 of the heat insulating box 11 in a front view).

Therefore, in order to press the inner surface of the heat insulating box 11 with the holding portion 592 of the holding jig 590, as shown in FIG. 12, each holding portion 592 is brought close to the jig body 591 (holding jig 590. (In a state of being contracted), the pressing jig 590 is put into the heat insulating box 11 through the opening 11F, and then each pressing portion 592 is moved in a direction away from the jig main body portion 591 to move each pressing portion 592 of the heat insulating box 11. It is necessary to contact each surface (surface 15A, surface 15C, surface 15D). FIG. 14 shows a process of bringing the pressing portion 592 into contact with the surface 15C. In FIG. 14, the pressing portion 592 in contact with the surface 15C is denoted by reference numeral 592A.

When such a holding jig 590 is used, the corner portions on the inner surface of the heat insulating box 11 cannot be held by the holding portion 592. For this reason, the left and right ends 73, 73 of the surface forming wall portion 70 forming the surface 15C cannot be pressed by the pressing portion 592. Therefore, as a result of pressing the both end portions 73, 73 of the surface forming wall portion 70 upward by the pressure when the heat insulating material 11C is foamed, the surface forming wall portion 70 is, as shown in FIG. , 73 may have a curved shape disposed above the central portion 74 in the left-right direction. In addition, in the following description, the surface constituting wall portion 70 in a state where both end portions 73, 73 are arranged in a curved shape arranged above the central portion 74 is referred to as a surface constituting wall portion 570.

The plate-shaped member 580 of the present embodiment is provided on the surface forming wall portion 570. That is, the plate member 580 is used when the surface forming wall portion 70 is curved. The plate-shaped member 580 has a plate shape that is long in the left-right direction like the plate-shaped members 80, 280, 380, and 480, and is larger than the second extending wall portion 42 (see FIG. 5) in the upward facing surface 15C. It is provided in the rear part. As shown in FIGS. 15 and 16, the plate member 580 includes a first extending portion 581 (abutting portion) and a second extending portion 582 (a rising portion) that rises upward from the surface 15C. As shown in FIG. 16, the first extending portion 581 extends rearward from the lower end of the second extending portion 582, and as shown in FIG. 15, extends linearly in the left-right direction and contacts the surface 15C. It is composed. That is, the first extending portion 581 is arranged so as to face the surface forming wall portion 570. The plate-shaped member 580 extends over the entire length of the plane-constituting wall portion 570 in the left-right direction.

The plate member 580 is formed with notches 593 and 593 for avoiding interference with both end portions 73 and 73 of the surface forming wall portion 570. As shown in FIGS. 16 and 17, the cutout portion 593 is formed by cutting out a portion of the plate member 580 that interferes with the both end portions 73, 73. 16 and 17, the cutout portion 593 is shown in a shaded pattern. The left and right ends of the first extending portion 581 are arranged closer to the center in the left and right direction than the left and right ends of the second extending portion 582. Further, a part 593A of the cutout portion 593 is formed by cutting out the lower end portion of the second extended portion 582 as shown in FIG. Therefore, the lower surface 582A at the end portion in the left-right direction of the second extending portion 582 has a curved shape that follows the curved shape of the end portion 73 of the surface forming wall portion 570.

When both end portions 73, 73 of the surface forming wall portion 570 are arranged above the central portion 74 of the surface forming wall portion 570, as shown in FIG. 18, a plate in which the cutout portion 593 is not formed is formed. When the plate-shaped member 680 is arranged on the surface forming wall portion 570, both end portions 73 of the surface forming wall portion 570 interfere with both end portions of the plate-shaped member 680. As a result, a gap S3 is formed between the first extending portion 581 and the surface 15C of the surface forming wall portion 570 at the central portion of the plate member 680 in the left-right direction, and water may flow backward through the gap S3. I'm worried. By forming the cutouts 593 and 593 in the plate member 580 as in the present embodiment, as shown in FIG. 15, both end portions 73 and 73 of the surface constituting wall portion 570 interfere with the plate member 580. Therefore, it is possible to suppress a situation in which a gap is created between the first extending portion 581 and the surface 15C of the surface forming wall portion 570. Further, as shown in FIG. 18, when both end portions 73, 73 of the surface constituting wall portion 570 interfere with the plate member 680, the height of the second extending portion 582 rises, and the second extending portion 582. Although there is a concern that the bottom wall portion 31 (see FIG. 4) may be deformed by hitting the bottom wall portion 31, such a situation can be suppressed by the plate-shaped member 580 of the present embodiment.

<Other Embodiments>
The present invention 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 invention.
(1) In the above embodiment, the configuration in which the cooler 27 and the cooling fan 60 are arranged above the storage box has been illustrated, but the present invention is not limited to this. For example, the machine room and the storage room may be arranged side by side in the horizontal direction, and the cooler 27 and the cooling fan 60 may be arranged laterally of the storage box.
(2) In the above-described embodiment, the case where the second extending portion, which is the rising portion, has a plate shape is illustrated, but the second extending portion may have a shape other than a plate shape. For example, the second extending portion may be a rectangular parallelepiped that is long in the left-right direction.

10... Cooling storage, 11... Insulation box (outer box), 11F... Opening part, 12... Front wall part, 12A... Flange part, 15A... Surface (inner surface of outer box), 15B... Surface (inner surface of outer box), 15C... surface (surface of the inner surface of the outer box facing upward), 15D... surface (inner surface of the outer box), 18... joiner, 18A... upper surface of the joiner, 27... cooler, 30... storage box (inner box), 30A... Storage room, 31... Bottom wall part, 41... First extension wall part, 42... Second extension wall part, 60... Cooling fan, 70, 570... Plane forming wall part, 82... Second extension part (Rising part), 82A... Upper end of rising part, 90... Sealing material, 282, 382... Second extended part (upstanding part, inclined wall part), 483... Third extended part (provided on upper end of rising part Rearwardly extending portion), 580... plate-shaped member, 580A... notch portion, 581... first extending portion (contact portion), 582... second extending portion (rising portion), S1... cold air passage ( Space), S13...third passage (part of space)

Claims (6)

A box-shaped outer box that opens to the front,
An inner box having a box shape having a storage chamber opened to the front, and being housed inside the outer box in a state where a space is formed between the inner surface of the outer box and the inner box,
A cooler arranged outside the inner box,
A cooling fan that is arranged outside the inner box and supplies air cooled by the cooler to the space,
The inner box is
A bottom wall portion that extends downwardly as it goes forward,
A first extending wall portion extending downward from the front end of the bottom wall portion;
A second extended wall portion extending rearward from a lower end of the first extended wall portion,
The outer box includes a surface forming wall portion forming a surface of the inner surface facing upward,
The bottom wall portion is arranged above the surface forming wall portion, and is arranged to face the surface forming wall portion so as to form at least a part of the space,
The second extending wall portion is supported by the upward facing surface,
A longitudinal rising portion that rises upward from the upward-facing surface and extends in the left-right direction of the cooling storage is provided at a location rearward of the second extending wall portion on the upward-facing surface. Cooling storage. The cooling storage according to claim 1, wherein a sealing material is provided at a boundary portion between the rising portion and the surface facing upward. The outer box is
A front wall portion arranged in front of the surface forming wall portion and forming a part of the front surface of the outer box,
A flange portion extending rearward from the upper end of the front wall portion,
A joiner that connects the rear end of the flange and the front end of the surface forming wall,
The cooling storage according to claim 1 or 2, wherein an upper end of the rising portion is arranged at a position higher than an upper surface of the joiner. The cooling storage according to any one of claims 1 to 3, wherein the rising portion is an inclined wall portion that is inclined upward as it goes rearward. An extension portion extending rearward is provided at the upper end of the rising portion,
The cooling storage according to any one of claims 1 to 4, wherein the bottom wall portion is supported from below by the extending portion. A plate-shaped member that is long in the left-right direction is provided at a position rearward of the second extending wall portion on the upward-facing surface,
The plate-shaped member,
The rising portion,
An abutting portion that extends rearward from the lower end of the rising portion, extends linearly along the left-right direction, and abuts on the upward-facing surface;
The surface forming wall portion has a curved shape in which both end portions in the left-right direction are arranged higher than a central portion in the left-right direction,
The plate-shaped member,
Extending over the entire length in the left-right direction in the surface forming wall portion,
The cooling storage according to any one of claims 1 to 5, wherein the plate-shaped member is formed with a notch that avoids interference with the both ends.

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