Environment forming device

Abstract

To provide an environment forming device capable of making air blow flowing in an article arrangement chamber relatively uniform.SOLUTION: An environment forming device 1 has an article arrangement chamber 20 having a shelf arrangement region, shelves 40, a blowing port 22, and intake ports 25, 26. The blowing port is positioned at a specific wall face 16 side of the article arrangement chamber 20, and the intake ports are positioned at the specific wall side of the article arrangement chamber, and at height above and / or under the blowing port, and take in the air of the article arrangement chamber from the intake ports and blow to the article arrangement chamber from the blowing port. A space is formed between the shelf arrangement region and the specific wall face, baffles 65 are provided in the space and between the blowing port and the intake ports. A bottom face of the shelf is provided with ventilation openings 50 in a region positioned at the wall face side facing the specific wall face on the bottom face, and other regions of the bottom face are practically closed.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an environment creating device capable of creating a desired environment inside an item placement chamber, and more particularly to an environment creating device having built-in shelves on which items are placed. [Background technology]

[0002] The environment forming device is capable of artificially creating a predetermined environment, such as a temperature environment (for example, high temperature or low temperature) or a humidity environment (for example, high humidity or low humidity), in the item placement room. The environment creating device may be used, for example, for storing an article under a predetermined environment or for performing an environmental test. Some environment creating devices have multiple shelves installed inside. Some of the shelves and the like used in the conventional environment creating device have openings on all sides, which are formed for the purpose of reducing temperature variation in the item placement chamber. That is, in the prior art, openings in the shelves etc. allow air to pass above and below the shelves, thereby making the temperature etc. in the article storage room uniform. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 4-324089 Summary of the Invention [Problem to be solved by the invention]

[0004] The environment creating device generally has a blower, and the air in the item placement chamber is circulated by the air blown by the blower. Generally, there is one or a small number of air outlets blowing air into the item placement chamber. In some cases, air whose temperature has been adjusted is blown into the item placement chamber from one or a small number of air outlets. On the other hand, since the shelf has a considerable mounting area, there are areas close to the air outlet and areas far from the air outlet. The air speed is fast in the area close to the air outlet of the shelf. Therefore, as shown in Figure 9, the air may escape in the vertical direction of the shelf from an opening in the shelf board or the like provided in the area close to the air outlet. As a result, the amount of air reaching the area far from the air outlet may decrease, and therefore the area close to the air outlet may reach a predetermined temperature quickly, but the area far from the air outlet may take a long time to reach the predetermined temperature, or may not reach the predetermined temperature at all.

[0005] In addition, as shown in Figure 9, the air may flow into the gap between the shelf and the wall where the air outlet is installed, and may flow into the air intake without reaching the area where the shelf is installed. In other words, the air may short-circuit and return without hitting any items.

[0006] The present invention is intended to solve the above-mentioned problems of the prior art, and provides an environment creating device that can blow air relatively uniformly through an item placement chamber. [Means for solving the problem]

[0007] An embodiment for solving the above-mentioned problems is an environment forming device having an item placement chamber having a shelf placement area, a shelf, an air outlet, and an air intake, the air outlet being located on a specific wall surface side of the item placement chamber and the air intake being located on the specific wall surface side of the item placement chamber at a height above and / or below the air outlet, the environment forming device sucking in air from within the item placement chamber through the air intake and blowing it into the item placement chamber from the air outlet, wherein there is a gap between the shelf placement area and the specific wall surface, a baffle plate portion is provided within the gap at a position between the air outlet and the air intake, and the bottom surface of the shelf has an air vent in an area located on the side of the bottom surface facing the specific wall surface, and other areas of the bottom surface are substantially sealed. A specific aspect for solving the above-mentioned problems is an environment forming device having an item placement chamber having a shelf placement area, a shelf, an air outlet, and an air intake, the air outlet being located on a specific wall surface side of the item placement chamber, the air intake being located on the specific wall surface side of the item placement chamber and at a height above and / or below the air outlet, the environment forming device sucking air from within the item placement chamber through the air intake and blowing it to the item placement chamber through the air outlet, wherein there is a gap between the placement area and the specific wall surface, a baffle plate portion is provided within the gap at a position between the air outlet and the air intake port, the bottom surface of the shelf has an air vent in an area located on the wall surface side facing the specific wall surface, and other areas of the bottom surface are substantially sealed, the item placement chamber has a main body portion having an opening surface and a door covering the opening surface, an inner lid member is provided on the opening surface, the inner lid member has an opening, and the shelf is inserted and removed through the opening. .

[0008] Here, "the air outlet is on the specific wall surface side of the item placement chamber" means that the air outlet may be provided on the specific wall surface itself, or may be provided near the specific wall surface, such as the ceiling wall, bottom wall, etc. Similarly, "the air intake is on the specific wall surface side of the item placement chamber" means that the air intake may be provided on the specific wall surface itself, or may be provided near the specific wall surface, such as the ceiling wall, bottom wall, etc. "Substantially sealed" does not mean only when it is completely sealed. "Substantially sealed" also includes when it has an unsealed portion that is not provided for the purpose of actively allowing air to flow. "Substantially sealed" also includes when the openings provided in other areas of the bottom surface are completely or mostly blocked by objects, boards, etc. when the environment creating device is in use. In the environment creating device of this embodiment, the ventilation opening is located in an area of ​​the bottom surface of the shelf that is located on the wall surface side facing the specific wall surface. As described above, since the air outlet is located on the specific wall surface side, the ventilation opening is located far from the air outlet. Since the other areas of the bottom surface of the shelf are substantially sealed, it is difficult for the air to flow in the vertical direction of the shelf in the area close to the air outlet of the shelf. Therefore, the air from the air outlet is blown from a specific wall surface side, and most of the air reaches the opposing wall surface side. In the environment forming device of this aspect, a gap is provided between the shelf arrangement area and the specific wall surface, and a baffle plate is provided in the gap at a position between the air outlet and the air intake, thereby preventing the air from the air outlet from flowing directly into the air intake.

[0009] In the above aspect, it is preferable that the shelf is provided with a movement suppression means for suppressing an article on the shelf from moving toward the ventilation opening.

[0010] According to this aspect, it is possible to prevent the article from shifting and blocking the ventilation opening.

[0011] In each of the above-mentioned aspects, it is desirable that the shelf support member has an extension area and a loading area in which the shelf is installed, the extension area being between the loading area and the wall surface of the item placement room, and the extension area being substantially sealed.

[0012] The environment forming device of this aspect has a shelf support member, and a shelf is installed in the mounting area of ​​the shelf support member. Here, since the shelf support member has an extension area between the mounting area and the wall surface of the item placement chamber, the width of the shelf can be made relatively narrow, and the opening for pulling out the shelf can be made small. As a result, it is possible to reduce the amount of air that flows in and out of the item arrangement chamber when the shelf is moved in and out, and it is possible to keep the change in the environment in the item arrangement chamber caused by moving the shelf in and out relatively small.

[0013] In each of the above-mentioned aspects, it is desirable that the item placement chamber has a main body having an opening surface and a door covering the opening surface, an inner cover member is provided on the opening surface, the inner cover member has an opening, and the shelf is inserted and removed through the opening.

[0014] According to the environment creating device of this aspect, the space within the item placement chamber is essentially doubly sealed off by the inner lid member and the door. In addition, the inner cover member has an opening through which the shelf is inserted and removed. Therefore, the effective opening area when inserting and removing the shelf is small, and the change in the environment inside the item arrangement chamber caused by inserting and removing the shelf is relatively small.

[0015] In each of the above-mentioned aspects, it is desirable that the shelves are multiple and are arranged in multiple tiers, the air outlet is located in the center of the specific wall surface, the air inlets are above and below the air outlet, and the baffle section comprises an upper baffle section provided at a height equal to or higher than the bottom of the uppermost shelf, and a lower baffle section provided at a height equal to or lower than the top end of the lowermost shelf.

[0016] According to the environment creating device of this aspect, the blown air is prevented from returning without hitting an object.

[0017] In each of the above-mentioned aspects, it is desirable that the air outlet is provided at one end side of the specific wall surface in the vertical direction, the air intake is provided at the other end side of the specific wall surface in the vertical direction, and the baffle plate portion is provided at the other end side.

[0018] According to the environment creating device of this aspect, the blown air is prevented from returning without hitting an object. Effect of the Invention

[0019] The environment creating device of the present invention can blow air relatively uniformly within the item placement chamber. [Brief description of the drawings]

[0020] [Figure 1] 1 is a perspective view of an environment creating device according to an embodiment of the present invention. [Diagram 2] 1 is an exploded perspective view of an environment creating device according to an embodiment of the present invention; [Diagram 3] 2 is a front view of the environment creating device of FIG. 1 with the door open. [Figure 4] 2 is a cross-sectional view conceptually showing the periphery of an item placement chamber of the environment creating device of FIG. 1. [Diagram 5] 1A and 1B show a state in which a shelf is placed on a shelf support member, in which FIG. [Figure 6] 13(a) and 13(b) are explanatory diagrams showing the behavior of an item on a shelf. [Figure 7] 13A and 13B are cross-sectional views conceptually showing the periphery of an item placement chamber of an environment creating device according to another embodiment of the present invention. [Figure 8] FIG. 11 is a cross-sectional view conceptually showing the periphery of an item placement chamber of an environment creating device according to still another embodiment of the present invention. [Figure 9] 1 is a cross-sectional view conceptually showing the periphery of an item placement chamber of a conventional environment creating device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment of the present invention will be described. The environment creating device 1 of this embodiment can be used for storing medicines such as vaccines at extremely low temperatures. The environment creating device 1 of this embodiment has a main body 3 having an opening surface 2, and a door 5 that covers the opening surface 2, as shown in FIG. The main body 3 is a housing made of thermally insulating walls. The main body 3 has a top wall 10, a bottom wall 11, a right side wall 12, a left side wall 13, and a back wall 15, as shown in Figures 2 and 4. The door 5 is connected to the main body 3 by a hinge (not shown), and opens and closes the opening surface 2 of the main body 3.

[0022] As shown in Fig. 4, in this embodiment, a thermally insulated tank is formed by a main body 3 and a door 5. A partition is provided inside the thermally insulated tank, and the inside of the thermally insulated tank is largely divided into an item placement chamber 20 and an air conditioning section 21. The partition forms the back wall 16 of the item placement chamber 20. In this embodiment, the door 5, and the top wall 10, bottom wall 11, right side wall 12, left side wall 13, and back wall 16 of the main body 3 form an item placement chamber 20.

[0023] The rear wall 16 is provided with an air outlet 22 in the center. In addition, air intakes 25, 26 are provided at the upper and lower ends of the rear wall 16. The item arrangement room 20 and the air conditioning unit 21 communicate with each other through the air outlet 22 and the air intakes 25, 26. In this embodiment, the air outlet 22 is located on the rear wall 16, which is a specific wall surface of the item arrangement room 20, and the air intake 25 is located on the rear wall 16, which is a specific wall surface, at a position higher than the air outlet 22. In addition, the air intake 26 is located on the rear wall 16, which is a specific wall surface, at a position lower than the air outlet 22.

[0024] Air conditioning device 30 is built into air conditioning unit 21. A blower 32 is provided near air outlet 22. The air conditioner 30 is composed of a cooler 31 and a heater 33. The cooler 31 is an evaporator of the cooling device. It is preferable that the cooling device has a capacity to cool to less than minus 70 degrees Celsius. Since all of these devices are well known, detailed description thereof will be omitted.

[0025] When the blower 32 is started, air in the item placement room 20 is introduced into the air conditioning unit 21 through the upper and lower air intakes 25, 26. Then, the air conditioning unit 21 enters a ventilation state, the air comes into contact with the air conditioning equipment 30 and heat is exchanged, and the conditioned air is blown out into the item placement room 20 from the central air outlet 22. In addition, a temperature sensor and a humidity sensor (not shown) are provided near the air outlet 22 . When the environment forming device 1 is used, the blower 32 is operated, and the air conditioner 30 is controlled so that the detection values ​​of the temperature sensor and humidity sensor approach the temperature and humidity of the set environment.

[0026] In the environment forming device 1 of this embodiment, a plurality of shelves 40a to 40e are installed in the item placement chamber 20. Also, an inner lid member 41 is provided on the opening surface 2 of the main body 3. The number of shelves 40 is arbitrary. The inner lid member 41 is a plate provided with a plurality of openings 43. Each of the openings 43 has a rectangular shape that is elongated in the horizontal direction.

[0027] The shelf 40 is in the form of a drawer, and as shown in FIGS. 2 and 5, a front panel 45 is provided on a tray portion 42. The tray section 42 has a bottom plate 46, and a low peripheral wall 38 is provided on the periphery of the bottom plate 46. The width Wa of the tray section 42 is considerably smaller than the width Wb of the item placement chamber 20. The width Wa of the tray section 42 is set to a width that allows it to be inserted into the opening 43 of the inner lid member 41. The front plate 45 is a plate that is taller than the peripheral wall 38 and wider than the tray portion 42. The front plate 45 is attached to the front end of the tray portion 42. The width Wc of the front plate 45 is close to the width Wb of the item placement chamber 20 and is larger than the width Wa of the tray portion 42. In addition, the height and width Wc of the front plate 45 are larger than the opening 43 of the inner lid member 41. The front panel 45 is provided with a handle 35 .

[0028] 5, the bottom plate 46 of the tray portion 42 has a ventilation area 47 near the front plate 45. The ventilation area 47 is provided with a number of ventilation openings 50. The other area of ​​the bottom plate 46 is a shielded area 48, which has substantially no openings and is substantially sealed. A movement suppression means 52 is provided at the boundary between the ventilation area 47 and the shielding area 48 . The movement suppression means 52 employed in this embodiment is a wall rising upward from the tray portion 42, and is a wall whose length in the width direction is shorter than the width Wa of the tray portion 42, and functions as a stopper. The movement suppression means 52 is located in the center of the bottom plate 46 in the width direction, and extends parallel to the front plate 45.

[0029] Inside the main body 3, on the right side wall 12 and the left side wall 13, shelf support members 55 for slidably supporting the shelf 40 are provided. The shelf support member 55 is, as shown in FIG. 5, a belt-shaped member 58 on which a partition wall 67 is provided. The belt-shaped member 58 is attached to a region extending from the vicinity of the inner lid member 41 to the vicinity of the rear wall 16. The belt-shaped member 58 extends from the vicinity of the inner lid member 41 toward the vicinity of the rear wall 16. The upper surface of the belt-shaped member 58 is horizontal. The partition wall 67 is a wall that rises in a direction intersecting (perpendicular to) the upper surface of the belt-shaped member 58, and extends from the vicinity of the inner lid member 41 toward the vicinity of the rear wall 16. The partition wall 67 is located closer to the center of the item placement chamber 20 than the right side wall 12 and the left side wall 13 when attached to the main body 3. The upper surface side of the belt-shaped member 58 is divided by the partition wall 67 into an extension area 56 and a placement area 57.

[0030] 2, an edge portion of the shelf 40 is placed on the placement area 57 of the shelf support member 55. In this embodiment, an extension area 56 is provided between the placement area 57 and the right side wall 12 and the left side wall 13, and the placement area 57 is located in a position that protrudes from the inner wall surface of the item placement chamber 20.

[0031] The placement region 57 and the extension region 56 of the strip-shaped member 58 are substantially free of openings and are substantially sealed.

[0032] The state in which the shelf 40 is inserted into the main body 3 is as shown in FIG. In this embodiment, most of the item arrangement chamber 20 is the shelf arrangement area 100, but the shelf arrangement area 100 is not the entire area of ​​the item arrangement chamber 20. That is, in the area near the back wall 16 of the item arrangement chamber 20, there is a void area (gap) 101 where no shelf 40 exists. In FIG. 4, in order to clarify the shelf arrangement area 100, the shelf support member 55 on the left side wall 13 is omitted from the illustration.

[0033] In the environment creating device 1 of this embodiment, an upper baffle member 60 and a lower baffle member 61 are provided in the gap area 101 described above. The upper baffle member 60 and the lower baffle member 61 are long members having an “L” shaped cross section, and each have an installation portion 63 and a baffle portion 65 provided in a direction substantially perpendicular to the installation portion 63 . The installation portion 63 is attached to the rear wall 16 by screws or the like (not shown), and the baffle plate portion 65 rises vertically from the surface of the rear wall 16 and extends horizontally in the width direction of the rear wall 16.

[0034] The baffle members 60 and 61 are both provided within the gap region 101 at positions between the blower opening 22 and the intake openings 25 and 26 . That is, the upper baffle member 60 is attached at a position where the baffle portion 65 is at the same height as the upper end of the peripheral wall 38 of the uppermost shelf 40a. The attachment height of the upper baffle member 60 is not limited, but it is recommended that the upper baffle member 60 be attached at a height equal to or higher than that of the bottom plate 46 of the uppermost shelf 40a.

[0035] In this embodiment, the lower baffle member 61 is attached at a position where the baffle portion 65 is at the same height as the bottom plate 46 of the lowest shelf 40e. The attachment height of the lower baffle member 61 is not limited, but it is recommended that the lower baffle member 61 be attached at a height equal to or lower than the upper end of the lowest shelf 40e.

[0036] Next, the function of the environment creating device 1 will be described. As a preparation step, the object 200 is placed on the shelf 40 and inserted into the item placement chamber 20. Specifically, the shelf 40 is inserted through the opening 43 of the inner lid member 41. The shelf 40 rests on the placement area 57 of the shelf support member 55 like a drawer, and is guided by the partition wall 67 to move toward the rear wall 16. Then, as shown in Figures 3 and 4, the front plate 45 of the shelf 40 abuts against the edge of the opening 43 of the inner lid member 41, and the entire tray portion 42 of the shelf 40 is accommodated in the item placement chamber 20. 3 and 4, the opening 43 of the inner lid member 41 is closed by a front plate 45. For convenience of drawing, the broken line indicating the opening 43 is omitted in FIG.

[0037] Since the shelf 40 is moved horizontally like a drawer and is inserted and removed from the item placement chamber 20, as shown in Figure 6, when the shelf 40 is moved, the item 200 placed on the shelf 40 may shift toward the front panel 45. 6, the shelf 40 employed in this embodiment is provided with a wall-like movement suppression means 52 at the boundary between the ventilation area 47 and the shielding area 48. Therefore, even if the object 200 shifts toward the front panel 45, the object 200 collides with the movement suppression means 52 and stops, as shown in FIG. Therefore, the object 200 remains in the shielded area 48 and is unlikely to enter the ventilation area 47. Therefore, there is little concern that the object 200 will block the ventilation opening 50 in the ventilation area 47.

[0038] As described above, when the blower 32 is started, air within the item placement room 20 is introduced into the air conditioning unit 21 through the upper and lower air intakes 25, 26, and the air, whose temperature, etc. has been adjusted, is blown out from the central air outlet 22 into the item placement room 20. When the object 200 within the item placement room 20 is to be kept at a low temperature, low-temperature air is blown out from the central air outlet 22 into the item placement room 20. In this embodiment, shelves 40 are installed in multiple tiers in the item placement chamber 20, and all of the shelves 40 are in a horizontal position. Therefore, there are gaps between the upper and lower shelves 40. There are also gaps between the top shelf 40 and the top wall 10 and between the bottom shelf 40 and the bottom wall 11. These gaps form multiple rows of ventilation passages 70a to 70f that run from the back wall 16 to the opposing door 5 or inner lid member 41. In this embodiment, the ventilation passages 70b to 70e in the middle region function as forward flow passages, and the ventilation passages 70a, 70f at the upper and lower ends function as return flow passages. In this embodiment, six rows of ventilation passages 70a to 70f are formed, but the number of ventilation passages is not limited.

[0039] The air blown out from the air outlet 22 enters the gap region 101 and is diffused to a certain extent. Baffle plate members 60, 61 are provided above and below the gap region 101, and the upper and lower ends of the gap region 101 are substantially closed to provide resistance to the air blown out. Therefore, the air blown out from the air outlet 22 is distributed to the ventilation paths 70b to 70e in the middle region and directed toward the inner lid member 41.

[0040] Focusing on the upper portion of the gap region 101, there is an upper baffle member 60, and a baffle portion 65 of the upper baffle member 60 is at the same height as the upper end of the peripheral wall 38 of the uppermost shelf 40a, and protrudes from the rear wall 16 toward the peripheral wall 38 of the shelf 40a. Therefore, the gap region 101 and the upper end ventilation passage (return flow passage) 70a are substantially blocked by the upper baffle member 60. Therefore, the flow passage from the air outlet 22 to the upper end ventilation passage (return flow passage) 70a is substantially blocked by the baffle portion 65 of the upper baffle member 60 and the peripheral wall 38 of the uppermost shelf 40a, and the air blown out from the air outlet 22 is unlikely to flow directly into the uppermost ventilation passage 70a.

[0041] Similarly, a lower baffle member 61 is provided on the lower side of the gap region 101. A baffle portion 65 of the lower baffle member 61 is at the same height as the bottom plate 46 of the lowermost shelf 40e, and protrudes from the rear wall 16 toward the peripheral wall 38 of the shelf 40e. Therefore, the lower baffle member 61 substantially blocks the space between the gap region 101 and the lower end ventilation passage (return passage) 70f. Therefore, the flow path from the air outlet 22 to the lower-end ventilation passage (return flow path) 70f is essentially blocked by the baffle portion 65 of the lower baffle member 61 and the peripheral wall 38 of the lowest shelf 40e, and the air blown out from the air outlet 22 is unlikely to flow directly into the lower-end ventilation passage 70f.

[0042] Therefore, the air blown out from the air outlet 22 flows through the intermediate ventilation paths 70b-70e and reaches the vicinity of the inner lid member 41. The ventilation paths 70b-70e between them are formed by the shielded areas 48 of the bottom plates 46 of the shelves 40 adjacent above and below. As described above, there are substantially no openings in the shielded areas 48 of the bottom plate 46, so the air reaches the vicinity of the inner lid member 41 without diffusing vertically.

[0043] Focusing on the vicinity of the inner lid member 41, the opening 43 of the inner lid member 41 is closed by the front plate 45. Meanwhile, the ventilation area 47 of the shelf 40 is located near the inner lid member 41. Since a large number of ventilation openings 50 are provided in the ventilation area 47, the air that flows through the ventilation passages 70b to 70e in the middle and reaches the vicinity of the inner lid member 41 passes through the ventilation openings 50 and flows up and down as shown by the arrows in FIG. 4. Then, the air enters the upper ventilation passage (return side flow passage) 70a or the lower ventilation passage (return side flow passage) 70f, flows from the inner lid member 41 side toward the rear wall 16 side, and enters the intake ports 25 and 26.

[0044] In the environment creating device 1 of this embodiment, most of the air blown out from the air outlet 22 reaches the vicinity of the wall surface facing the air outlet 22. Therefore, the air flows uniformly in the item placement chamber 20, and the wind speed in each part around the shelf 40 becomes uniform. As a result, the temperature change of the items placed on the shelf 40 becomes uniform.

[0045] In the environment forming device 1 of this embodiment, baffle members 60, 61 are provided above and below the gap region 101, and the upper and lower ends of the gap region 101 are substantially closed to provide resistance to the airflow. Therefore, the air blown out from the air outlet 22 is prevented from directly entering the air inlets 25, 26, making it difficult for a short circuit to occur. Therefore, in the environment forming device 1 of this embodiment, air circulation that does not contribute to adjusting the temperature of the items is suppressed.

[0046] In the environment creating device 1 of the present embodiment, the space in which the items are placed is doubly shielded by the door 5 and the inner lid member 41. The door 5 has thermal insulation properties, and ensures the insulation of the space in which the items are placed. The inner lid member 41 prevents outside air from entering when the door 5 is opened, and prevents cool air from leaking out of the environment creating device 1. When removing items stored inside the environment creating device 1, the door 5 is opened and the shelf 40 is pulled out. Even when the shelf 40 is pulled out, the only part communicating between the space in which the items 200 are placed and the outside is the opening 43 of the inner lid member 41, so air is prevented from entering or leaving, and the temperature change inside the storage unit is relatively small. In addition, because there is little outside air entering, frost is prevented from forming on the evaporator (cooler 31), and continuous operation for a relatively long period of time is possible.

[0047] In the embodiment described above, the air outlet 22 is located in the center of the rear wall 16 , and the air inlets 25 , 26 are located near the upper and lower ends of the rear wall 16 . The layout of the air outlet 22 and the air inlets 25, 26 in this embodiment is a recommended one, but the present invention is not limited to this layout. For example, the relationship between the blower port 22 and the intake ports 25, 26 may be reversed. That is, the intake port may be located in the center of the rear wall 16, and the blower ports may be located near the upper end and the lower end of the rear wall 16. Also, as in the environment creating device 80 shown in Fig. 7(a), a layout may be adopted in which the air outlet 22 is provided at the upper part of the rear wall 16, and the air intake 25 is provided at the lower part of the rear wall 16. In the environment creating device 80 shown in Fig. 7(a), the air outlet 22 is provided on the upper side of the rear wall 16, and the air intake 25 is provided at the lower part of the rear wall 16, which is the other end side. A lower baffle member 61 is provided at the lower part, which is the other end side. Conversely, a layout in which the air intake 25 is provided at the upper part of the rear wall 16 and the air outlet 22 is provided at the lower part of the rear wall 16 may be used. Also, as in the environment forming device 81 shown in FIG. 7(b), an air intake 25 may be provided at the boundary between the top wall 10 and the rear wall 16, and an air intake 26 may be provided at the boundary between the bottom wall 11 and the rear wall 16.

[0048] In the embodiment described above, the baffle plate member is provided on the rear wall 16, but the present invention is not limited to this configuration. For example, like an environment creating device 90 shown in FIG. 8, a baffle plate portion 65 may be integral with the rear wall 16 and protrude from the rear wall 16 .

[0049] Although the movement suppression means 52 employed in the embodiment described above is a vertical wall, the present invention is not limited to this configuration. The movement suppression means 52 is not limited to a shape or structure as long as it can suppress the object 200 from blocking the ventilation opening 50. For example, the movement suppressing means may be a pin-shaped protrusion. The movement suppressing means may be an obstacle protruding from the front plate 45. The movement suppressing means may be provided on the peripheral wall 38. The movement suppressing means may be a means for ensuring breathability by raising the ventilation area 47 itself in which the ventilation openings 50 are provided. The movement suppressing means may be a means for raising the periphery of the ventilation openings 50, for example, by burring. The movement suppressing means may be a means for providing a friction-imparting member on the bottom plate 46. The movement suppression means is not essential and may be omitted.

[0050] The positions of the baffle members (baffle portions) 60, 61 are preferably at the heights of the above-mentioned embodiments, but the present invention is not limited to this configuration. For example, the position of the baffle portion 65 of the upper baffle member 60 may be at a height below the bottom of the top shelf 40a. Also, the position of the baffle portion 65 of the lower baffle member 61 may be at a height above the top end of the bottom shelf 40e.

[0051] The opening surface of the air outlet 22 may be flush with the rear wall (specific wall surface) 16. The opening surface of the air outlet 22 may also protrude toward the shelf board arrangement area 100. Conversely, the opening surface of the air outlet 22 may be located in a recessed position.

[0052] In the environment creating devices 1, 80, and 81 of the above-described embodiments, the space in which the items are placed is doubly shielded by the door 5 and the inner lid member 41. However, the present invention is not limited to this configuration, and only one of them may be used. For example, there may be no member corresponding to the door 5, and only a member corresponding to the inner lid member 41. In this case, it is preferable that the inner lid member 41 is made of a heat insulating wall. Conversely, a member corresponding to the inner lid member 41 may not be present.

[0053] The extension area 56 of the shelf support member 55 and the partition wall 67 are not essential. Furthermore, the shelf 40 employed in the above embodiment is in the form of a drawer, but the present invention is not limited to this configuration, and it may be a fixed shelf.

[0054] The shelf support member 55 does not have to be located close to the inner lid member 41. In other words, there may be a gap between the shelf support member 55 and the inner lid member 41.

[0055] In the above-described embodiment, the extension area 56 of the shelf support member 55 is in principle sealed off, but a ventilation opening may be provided in the area near the door 5, and the air that flows through the intermediate ventilation passages 70b-70e and reaches the vicinity of the inner cover member 41 may be made to flow upward and downward through the ventilation opening of the shelf support member 55.

[0056] The placement area 57 of the shelf support member 55 may have an opening that allows ventilation. In this case, it is desirable that when the environment creating device is used, the shelf 40 is placed thereon to cover all or most of the opening. This allows the placement area 57 to be substantially sealed off. The extension area 56 may have an opening that allows ventilation. In this case, it is desirable to cover all or most of the opening by placing a plate or the like when the environment forming device is used. This allows the extension area 56 to be substantially sealed.

[0057] In the embodiment described above, the tray portion 42 of the shelf 40 has a bottom plate 46, and the shielding area 48 of the bottom plate 46 has no openings, and the bottom plate 46 seals off the shielding area 48 on the bottom surface of the shelf 40. The configuration for sealing the bottom surface of the shelf 40 is not limited to the configuration described above, and the bottom surface of the shelf 40 may be substantially sealed off with a separate member. For example, an opening may be provided at a position where an object is likely to be placed thereon and blocked when the environment forming device is in use, and an object or a plate or the like is placed thereon to block the opening when the environment forming device is in use. Alternatively, a ventilated opening may be provided in the shielded area 48 of the bottom plate 46, and all or most of the opening may be blocked when an object or a plate or the like is placed on the shielded area 48 when the environment forming device is in use. The "plate or the like" that blocks the shielded area 48 essentially constitutes the bottom surface of the shelf 40, but may be removable. With this configuration as well, the shielded area 48 on the bottom surface of the shelf 40 can be substantially blocked. [Explanation of symbols]

[0058] 1, 80, 81 Environment shaping device 2 Opening surface 10 Top wall 11 Bottom wall 16 Back wall (specific wall) 20 Goods placement room 22 Ventilation vent 25 Air Intake 26 Air Intake 32 Blower 38 Peripheral wall 40a~40e Shelves 41 Inner cover member 42 Tray section 43 Aperture 45 Front plate 46 Bottom plate 47 Ventilation area 48 Shield area 50 Ventilation opening 52 Movement restraint means 55 Shelf support material 56 Extended area 57 Loading area 60 Upper baffle member 61 Lower baffle member 65 Baffle plate section 70a~70f ventilation passage 100 Shelving area 101 Void area (void)

Claims

1. The storage device has an item arrangement chamber having a shelf arrangement area, a shelf, an air outlet, and an air intake, The air outlet is located on a specific wall surface side of the item placement room, the air intake is located on the specific wall surface side of the item placement room, at a height position above and / or below the air outlet, An environment forming device that draws in air from the item placement chamber through the air intake and blows air into the item placement chamber through the air outlet, a gap is provided between the arrangement area and the specific wall surface, and a baffle plate portion is provided in the gap at a position between the air outlet and the air intake; A ventilation opening is provided on a bottom surface of the shelf in an area located on a wall surface side facing the specific wall surface, and other areas of the bottom surface are substantially sealed off; The item placement chamber has a main body having an opening surface and a door that covers the opening surface, The environment creating device is characterized in that an inner lid member is provided on the opening surface, the inner lid member has an opening, and the shelf is inserted and removed through the opening.

2. 2. The environment creating device according to claim 1, wherein the shelf is provided with a movement suppressing means for suppressing the objects on the shelf from moving toward the ventilation opening.

3. The shelf support member has an extension area and a placement area on which the shelf is placed.

3. The environment creating device according to claim 1, wherein the extension area is between the placement area and a wall surface of the item placement room, and the extension area is substantially sealed off.

4. The shelves are arranged in a plurality of tiers, The air outlet is located in the center of the specific wall surface, and the air intakes are provided above and below the air outlet, 4. The environment creating device according to claim 1, further comprising an upper baffle plate portion provided at a height equal to or higher than the bottom of the uppermost shelf, and a lower baffle plate portion provided at a height equal to or lower than the top end of the lowermost shelf.

5. The environmental creating device according to any one of claims 1 to 3, characterized in that the air outlet is provided at one end side of the specific wall surface in the vertical direction, the air intake is provided at the other end side of the specific wall surface in the vertical direction, and the baffle plate portion is provided at the other end side.

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