JP2023146561A - building - Google Patents

Abstract

To provide a building capable of using cold air effectively in indoor spaces while suppressing cold air leaking from an opening of an open cooling showcase from staying on the floor.SOLUTION: A building (1) includes: an open cooling showcase (3) with an open front (31) capable of keeping products cool, which is installed on a floor (12) with a gap left between the back (32) and the side wall (11); and a blower (4) that sends the cold air leaking into an indoor space (20) from the opening of the showcase (3) to a ceiling (10) through gaps (S1, S2) between the back (32) and side wall (11) of the showcase (3). A heat-insulating material (5) is provided on the side wall (11) facing the back surface (32) of the showcase (3).SELECTED DRAWING: Figure 1

Description

The present invention relates to a building, and particularly to a building in which an open cooling showcase is installed in an indoor space formed by a ceiling, side walls, and a floor.

For example, front-opening type cooling showcases are used in stores (buildings) such as supermarkets, convenience stores, and drug stores to display refrigerated or frozen products while cooling them. Although such a showcase has the advantage of making it easy to pick up products, cold air from the showcase leaks into the indoor space due to the temperature difference between the indoor space and the inside of the showcase.

As a technique for solving such problems, for example, Japanese Patent Laid-Open No. 2011-242104 (Patent Document 1) is known. Patent Document 1 discloses that a blower that generates air flow is attached to an air duct provided on the back and bottom of the showcase to suppress cold air leaking from the opening of the showcase from accumulating on the floor surface. ing.

Japanese Patent Application Publication No. 2011-242104

In the air conditioning system of Patent Document 1, it is possible to suppress the accumulation of cold air on the floor surface, but since the cold air leaking from the opening of the showcase passes through the air duct, it is necessary to install the side wall adjacent to the air duct. If the air is cooled, there is a risk of condensation forming on the air ducts and side walls, and the cool air cannot be used effectively.

The present invention has been made to solve the above-mentioned problems, and its purpose is to suppress the cold air leaking from the opening of the open cooling showcase from staying on the floor surface, and to dissipate the cold air. The purpose is to provide a building that can be effectively utilized in indoor space.

A building according to an aspect of the present invention is a building in which an indoor space is formed by a ceiling, side walls, and a floor. An open cooling showcase is installed on the floor with a gap between The showcase is equipped with a blower that sends air to the ceiling, and a heat insulating material is provided on the side wall facing the back of the showcase.

Preferably, the moisture permeation resistance of the heat insulating material is 0.018 [(m ² ·s · Pa)/ng] or more.

Preferably, a pedestal is provided to provide a gap between the bottom of the showcase and the floor, and a pedestal is provided to provide a gap between the bottom of the showcase and the floor. An air flow path is formed that leads to.

Preferably, the device further includes an air conditioner that conditions the air in the indoor space.

Preferably, the showcase further includes a first wind direction plate that is provided on the front side of the showcase and guides the cold air leaking from the showcase opening downward, and the first wind direction plate extends from the floor surface to the lower end of the showcase opening. It has a height that extends to the vicinity.

Preferably, the indoor space includes an upper space located on the ceiling side and a lower space located below the upper space and on the floor side, and the air outlet of the air conditioner is the boundary between the upper space and the lower space. located in the department.

Preferably, the air conditioner further includes a second wind direction plate protruding from the side wall toward the indoor space at the boundary between the upper space and the lower space.

According to the building of the present invention, it is possible to suppress the cold air leaking from the opening of the open cooling showcase from staying on the floor surface, and to effectively utilize the cold air in the indoor space.

FIG. 1 is a schematic cross-sectional view schematically showing a building according to the first embodiment. 1 is a floor plan schematically showing a building according to the first embodiment; FIG. FIG. 3 is a schematic cross-sectional view schematically showing a building according to the second embodiment. FIG. 1 is a schematic cross-sectional view schematically showing a building in which a conventional open-type cooling showcase is arranged.

Embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same reference numerals are attached to the same or corresponding parts in the drawings, and the description thereof will not be repeated.

First, prior to describing the building according to this embodiment, the indoor environment of a typical store such as a supermarket, convenience store, drug store, etc. will be briefly described with reference to FIG.

Referring to FIG. 4, an indoor space 120 of a building 100 is provided with a sales floor 121 and an adjacent room 122 such as a backyard, with a side wall 111 as a boundary. A showcase 3 is arranged in the sales floor 121 in which products can be kept cool and further displayed. Since the showcase 3 has an opening 30 on the front surface 31, the cold air from the showcase 3 leaks into the indoor space 120, becomes a cold air pool C near the floor surface 112, and the cold air stays there. Therefore, the temperature near the floor surface 112 is low, and the temperature above it is high, creating an uncomfortable environment where only the feet are extremely cold.

Moreover, by installing the showcase 3 near the side wall 111, the side wall 111 is cooled by the cold air from the back surface 32 of the showcase 3, and dew condensation M1 occurs inside the side wall 111. Condensation M2 will occur on the surface. As a result, there was a risk that mold would grow on the side wall 111.

In order to improve the environment inside the building 100, this embodiment suppresses the cold air leaking from the opening of the front-opening showcase 3 from staying on the floor surface 112, and directs the cold air to the indoor space. 120 is being used effectively. Furthermore, the growth of mold on the side wall 111 is suppressed. Below, such a building will be explained in detail.

(Embodiment 1)
A building 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. The building 1 is a store in which a showcase 3 is installed, such as a supermarket, convenience store, or drug store.

Referring to FIG. 1, in a building 1, an indoor space 20 is formed by a ceiling 10, side walls 11, and a floor 12. When the building 1 of this embodiment is a store, the indoor space 20 of this embodiment is used as a sales floor 21, for example.

Referring to FIG. 2, building 1 is partitioned by a plurality of side walls 11. The side wall 11 includes a first side wall 11a, a second side wall 11b, a third side wall 11c, and a fourth side wall 11d. The indoor space 20 and the outdoor space are separated by the first side wall 11a, the second side wall 11b, and the third side wall 11c. The indoor space 20 is divided into a sales floor 21 and a backyard 22 by a fourth side wall 11d. In other words, the fourth side wall 11d is a partition wall that partitions the sales floor 21 and the backyard 22. In FIG. 2, an example is shown in which the showcase 3 is provided along the extending direction of the fourth side wall 11d. In the following description, the fourth side wall 11d will be simply referred to as the side wall 11, and the indoor space of the sales floor 21 will be simply referred to as the indoor space 20.

As shown in FIG. 1, an indoor space 20 of a building 1 is generally provided with a showcase 3, a blower 4, and a heat insulating material 5 provided along a side wall 11.

The showcase 3 is capable of storing products in a cooled state. Specifically, the showcase 3 is a case for storing refrigerated products in a refrigerator, storing frozen products in a frozen state, and displaying these products. Inside the showcase 3, a cooler, a cold air circulation fan, etc. (not shown) are provided. The showcase 3 is an "open type cooling showcase" whose front surface 31 is open. Specifically, the showcase 3 includes a front surface 31 , a back surface 32 disposed facing the side wall 11 , and a bottom surface 33 installed on the floor surface 12 .

The front surface 31 has an opening 30 through which cold air escapes. Therefore, the showcase 3 does not require opening or closing the door to take out the product, making it easy to pick up the product. stay.

A gap S2 is provided between the back surface 32 of the showcase 3 and the side wall 11 (specifically, the heat insulating material 5). This gap S2 extends in the vertical direction from the floor surface 12 toward the ceiling 10. The width dimension of the gap S2 (distance between the back surface 32 of the showcase 3 and the heat insulating material 5) is preferably 5 cm or more and 10 cm or less.

It is preferable that a pedestal 6 is provided between the bottom surface 33 of the showcase 3 and the floor surface 12. The pedestals 6 are arranged on the front 31 side and the back 32 side of the showcase 3, respectively. Although the shape of the pedestal 6 is not limited, it may have a box shape, for example, and may be formed of a frame material through which air passes. Furthermore, the pedestal 6 may extend in the direction in which the showcase 3 extends, or may be partially provided. By providing the pedestal 6, a gap S1 is provided between the bottom surface 33 of the showcase 3 and the floor surface 12. This gap S1 extends in the depth direction of the showcase 3 from the front 31 side to the back 32 side of the showcase 3. The width dimension of the gap S1 (distance between the bottom surface 33 of the showcase 3 and the floor surface 12) is preferably 5 cm or more and 10 cm or less. The dimension of this gap S2 is approximately the same as the height dimension of the pedestal 6.

The blower 4 is preferably provided at the upper end of the gap S2 between the back surface 32 of the showcase 3 and the heat insulating material 5. The blower 4 is formed by a fan and a motor capable of rotating the fan, and by rotating the fan with the motor, generates an air flow indicated by an arrow in FIG. 1.

By operating the blower 4, the cold air leaking from the opening 30 of the showcase 3 and staying near the floor 12 is transferred to the showcase 3 in the gap S1 (between the bottom 33 of the showcase 3 and the floor 12). flow from the front side 31 side to the back side 32 side, and further, in the gap S2 (between the back side 32 of the showcase 3 and the heat insulating material 5), flow from the floor surface 12 toward the ceiling 10 side, and then to the ceiling 10 side. send out. When the blower 4 operates, the gap S1 becomes a first air flow path that guides the cold air induced by the blower 4 toward the side wall 11. Furthermore, the gap S2 becomes a second air flow path that guides the cold air induced by the blower 4 toward the ceiling 10 side. By forming the gaps S1 and S2 in this manner, the cold air accumulated near the floor surface 12 can be efficiently sent out to the ceiling 10 side.

The heat insulating material 5 is provided on the side wall 11 facing the back surface 32 of the showcase 3. The heat insulating material 5 is specifically a board-shaped foamed heat insulating material, and preferably has high moisture permeability resistance and high thermal resistance. Specifically, the moisture permeability resistance of the heat insulating material 5 is 0.018 [(m ² ·s · Pa)/ng] or more. Thereby, even when cold air leaking from the front surface 31 of the showcase 3 passes through the gap S2, it is possible to suppress dew condensation from forming on the side wall 11. The heat insulating material 5 extends above the height of the top plate of the showcase 3. Specifically, the height of the heat insulating material 5 is preferably 2 m or more. Further, it is preferable that the heat insulating material 5 extends to an intermediate position of the side wall 11 and is not provided in the upper part of the side wall 11. Thereby, the amount of heat insulating material 5 used can be suppressed.

The heat insulating material 5 is attached to the surface of the side wall 11. It is preferable that the heat insulating material 5 is not provided inside the side wall 11 and is exposed to the indoor space 20 side. A general heat insulating material provided on the side wall of a building is placed inside the side wall (for example, between base materials), but the heat insulating material 5 of this embodiment is exposed to the indoor space 20 side. It has characteristics. Further, the side wall 11 adjacent to the showcase 3 is often provided along a partition wall that partitions the indoor space 20, rather than an outer wall that contacts the indoor space 20. Further, in general, a heat insulating material is not provided on the partition wall. This embodiment is also characterized in that a heat insulating material is provided on the partition wall, which is not provided with a heat insulating material. Note that the heat insulating material 5 is covered with an interior material such as a gypsum board, and does not need to be exposed to the indoor space 20 side.

Preferably, the ceiling 10 is provided with an air conditioner 8 that conditions the air in the indoor space 20. The air conditioner 8 is, for example, a ceiling-embedded type. By providing the air conditioner 8, the air conditioned by the air conditioner 8 can be mixed with the cold air sent to the ceiling 10 side by the blower 4, thereby reducing the cooling load of the air conditioner 8. be able to.

In the building 1 of the present embodiment, the cold air leaking from the opening 30 of the showcase 3 into the indoor space 20 is sent out to the ceiling 10 side via the gaps S1 and S2, so that the showcase 3 Since the cold air leaking from the air can be prevented from staying near the floor surface 12 and can be mixed with the air in the indoor space 20, the load on air conditioning of the indoor space can be reduced. In this way, the building 1 of the present embodiment suppresses the cold air leaking from the opening 30 of the open cooling showcase 3 from staying on the floor surface 12, and makes effective use of the cold air in the indoor space 20. becomes possible. Furthermore, since the heat insulating material 5 is provided on the side wall 11 facing the back surface 32 of the showcase 3, even if cold air passes through the gap S2 between the back surface 32 of the showcase 3 and the heat insulating material 5, condensation will not occur on the side wall 11. This can be prevented from occurring.

(Embodiment 2)
FIG. 3 is a schematic cross-sectional view schematically showing a building 1A according to the second embodiment. The building 1A of the second embodiment differs from the building 1 of the first embodiment described above in that the air conditioner 8A has a different form and has two wind direction plates 91 and 92. The showcase 3, blower 4, and heat insulating material 5 may be the same as in the first embodiment.

Referring to FIG. 3, an air conditioner 8A in a building 1A according to the present embodiment is of a ceiling hanging type. Specifically, the air conditioner 8A includes a main body section 80 in which an air outlet 81 is provided, and a hanging section 82 that suspends the main body section 80 from the ceiling 10. It is preferable that the main body part 80 is, for example, a ceiling cassette type air conditioner. Since the main body part 80 is suspended from the ceiling 10 by the hanging part 82, the height of the air outlet 81 can be set lower than the ceiling 10.

Thereby, the indoor space 20 includes an upper space 20a located on the ceiling 10 side and a lower space 20b located below the upper space 20a and located on the floor 12 side. The air outlet 81 of the air conditioner 8A is located at the boundary between the upper space 20a and the lower space 20b. As a result, the upper space 20a is outside the range of air conditioning and has a high temperature, and the lower space 20b is within the range of air conditioning and has a lower temperature than the upper space 20a. Therefore, in the indoor space 20, temperature stratification is formed in which the upper space 20a is high temperature and the lower space 20b is low temperature. As a result, the area to be air-conditioned within the indoor space 20 becomes narrower, so that the air-conditioning load can be reduced.

A first wind direction plate 91 is provided on the front surface 31 side of the showcase 3, and a second wind direction plate 92 is provided on the upper side of the showcase 3.

Specifically, the first wind direction plate 91 is, for example, plate-shaped. The first wind direction plate 91 is for guiding the cold air leaking from the opening of the showcase 3 downward. The first wind direction plate 91 has a height extending from the floor surface 12 to near the lower end of the opening 30 of the showcase 3. It is preferable that the first wind direction plate 91 is not provided partially but extends along the extending direction of the showcase 3.

The second wind direction plate 92 is, for example, plate-shaped like the first wind direction plate 91, and protrudes toward the indoor space 20 from the side wall 11 at the boundary between the upper space 20a and the lower space 20b. The second wind direction plate 92 is for guiding the cold air sent toward the ceiling 10 through the gap S2 to the boundary between the upper space 20a and the lower space 20b. The second wind direction plate 92 has a protruding length that covers the upper part of the showcase 3. Like the first wind direction plate 91, the second wind direction plate 92 is also preferably not provided partially but extends along the extending direction of the showcase 3.

In the building 1A of this embodiment, by providing the first wind direction plate 91, the cold air leaking from the showcase 3 can be efficiently guided from the gap S1 to the back surface 32 side of the showcase 3. Furthermore, by providing the second wind direction plate 92, the cold air sent out from the gap S2 between the back surface 32 of the showcase 3 and the heat insulating material 5 can be controlled within the range of the conditioned air of the air conditioner 8A. and the cold air in the showcase 3 can be stirred. As a result, the building 1A of the present embodiment can reduce the air conditioning load more than the building 1 of the first embodiment, so that the cold air leaking from the opening 30 of the showcase 3 can be used more effectively. can do.

(Modified example)
Although the blower 4 in the above embodiment is arranged at the upper end (exit part) of the gap S2 between the back surface 32 of the showcase 3 and the heat insulating material 5, the blower 4 is not limited to this. It may be arranged at the tip (entrance) of the gap S1 between the gap S1 and the floor surface 12, or at the intersection where the gap S1 and the gap S2 intersect.

Generally, the bottom surface 33 of the showcase 3 is not in close contact with the floor surface 12, and a gap is provided to allow air to flow. Although the pedestal 6 was provided between the bottom surface 33 and the floor surface 12 of the showcase 3 in the above embodiment, the showcase 3 does not necessarily have to be raised, and even in that case, the A first air flow path is formed along the bottom surface 33 of the case 3.

Further, although the buildings 1 and 1A in the above embodiment have been described as mainly stores, they may be any building in which the open cooling showcase 3 is placed, and are not limited to the usage form of the building. do not have.

The above-mentioned embodiments disclosed this time are illustrative in all respects, and are not the basis for a limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the claims. In addition, all changes within the meaning and range equivalent to the description of the claims are included.

1, 1A building, 3 showcase, 4 blower, 5 heat insulating material, 6 pedestal, 8,8A air conditioner, 10 ceiling, 11 side wall, 12 floor, 20 indoor space, 20a upper space, 20b lower space, 30 opening, 31 front, 32 back, 33 bottom, 81 outlet, 91 first wind direction plate, 92 second wind direction plate, 100 building, 111 side wall, 112 floor, 120 indoor space, S1, S2 gap.

Claims (7)

A building in which an indoor space is formed by a ceiling, side walls, and floor,
an open-type cooling showcase that is open at the front, allows products to be cooled and stored, and is installed on the floor with a gap between the back and the side wall;
a blower that sends cold air leaking into the indoor space from the opening of the showcase to the ceiling side through a gap between the back surface of the showcase and the side wall;
The building, wherein the side wall facing the back surface of the showcase is provided with a heat insulating material. The building according to claim 1, wherein the moisture permeability resistance of the heat insulating material is 0.018 [( ^m2 ·s·Pa)/ng] or more. A pedestal for providing a gap is provided between the bottom surface of the showcase and the floor surface,
The building according to claim 1 or 2, wherein an air flow path is formed in a gap between a bottom surface of the showcase and the floor surface to guide cold air induced by the blower toward the side wall. The building according to any one of claims 1 to 3, further comprising an air conditioner that conditions air in the indoor space. further comprising a first wind direction plate provided on the front side of the showcase for guiding downward the cold air leaking from the opening of the showcase,
The building according to claim 4, wherein the first wind direction plate has a height extending from the floor surface to near a lower end of the opening of the showcase. The indoor space includes an upper space located on the ceiling side and a lower space of the upper space,
and a lower space located on the floor side,
The building according to claim 4 or 5, wherein the air outlet of the air conditioner is located at a boundary between the upper space and the lower space. The building according to claim 6, further comprising a second wind direction plate protruding from the side wall toward the indoor space at a boundary between the upper space and the lower space.

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