Showcase

Abstract

To provide a show case capable of reducing a necessary space for installation.SOLUTION: A show case 1 includes a case body 10 provided with an exhibition room 11 which is a space in which products are exhibited, and a cold air duct 40 provided with a cold air supply opening 43 opening to the exhibition room 11. On a spot positioned on the downstream side in a flowing direction of wind from the cold air duct 40, in a marginal part 17 of the cold air supply opening 43, an air-straightening member extending toward the exhibition room 11 is provided.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a showcase. [Background technology]

[0002] Patent Document 1 discloses a refrigerated showcase that prevents a decline in the cooling performance of the showcase and provides a mounting structure for a plate-shaped air rectification member. This showcase forms a flow path for circulating cold air between an outer box and an inner box in which products are displayed, provides a cold air outlet on one side of the flow path, provides a reinforcing member connecting the inner box and outer box within the flow path below the outlet, provides an upward piece at the upper end of the reinforcing member that extends to the outlet, and attaches the air rectification member facing the suction part to the upward piece. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-245590 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a showcase that can improve cooling performance with a simple configuration. [Means for solving the problem]

[0005] The showcase in the present disclosure is quotient The goods are displayed Ru Chen a case body in which a display chamber is provided; and a cold air duct in which a cold air outlet opening into the display chamber is provided. 、 At the edge of the cold air outlet, a portion located downstream in the direction of air flow of the cold air duct is Established , a wind adjustment member extending toward the display room and another air rectification member that is provided at the cold air outlet and is arranged upstream of the air rectification member in the direction of air flow in the cold air duct, wherein the air rectification member is arranged outside the cold air duct relative to the cold air outlet, and the other air rectification member is provided with a plurality of air blowing holes over the entire length, and the width dimension of the opening width of the air blowing holes along the front-rear direction of the case body is larger than the distance between the other air rectification member and the outer inner wall surface of the cold air duct. It is characterized by: [Effects of the Invention]

[0006] According to the present disclosure, it is possible to improve the cooling function with a simple configuration. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view of a showcase according to an embodiment of the present invention; [Figure 2] FIG. 2 is a longitudinal section in plane II of FIG. 1; [Figure 3] FIG. [Figure 4] FIG. 4 is an enlarged view of the area indicated by IV in FIG. 2. DETAILED DESCRIPTION OF THE INVENTION

[0008] (Findings that formed the basis of this disclosure) At the time the inventors arrived at the idea of ​​this disclosure, there was technology available that prevented a decline in the cooling performance of a refrigerated showcase and provided a mounting structure for a plate-shaped air rectification member. This showcase formed a flow path for circulating cold air between an outer box and an inner box in which products were displayed, provided a cold air outlet on one side of the flow path, provided a reinforcing member connecting the inner box and outer box within the flow path below the outlet, provided an upward piece at the upper end of the reinforcing member that extended to the outlet, and attached the air rectification member facing the suction part to the upward piece.

[0009] However, in such showcases, a specific component may be placed in the flow path of the cool air to install the air conditioning component. This increases the number of components in the showcase and may reduce the cooling function. Furthermore, the inventors discovered a problem in that showcases whose sides are made of transparent components may reduce the aesthetic appeal of the exterior. In order to solve this problem, the inventors have come up with the subject matter of the present disclosure. Therefore, the present disclosure provides a showcase that can improve cooling function with a simple configuration.

[0010] Hereinafter, embodiments will be described in detail with reference to the drawings. However, unnecessary detailed description may be omitted. For example, detailed description of well-known matters or redundant description of substantially the same configuration may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art. The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0011] (Embodiment 1) Hereinafter, the first embodiment will be described with reference to Figures 1 to 4. The symbol FR shown in each figure indicates the front of the showcase of the air conditioning device when it is installed on an installation surface and in normal use, the symbol UP indicates the top of the showcase, and the symbol LH indicates the left of the showcase. In the following description, each direction is along the direction of these showcases.

[0012] [1-1.Configuration] [1-1-1. Showcase Configuration] Fig. 1 is a perspective view of a showcase according to the present embodiment, and Fig. 2 is an exploded perspective view of the showcase 1 as seen from the rear. As shown in FIG. 1, the showcase 1 is a so-called flat-type refrigerated / freezer showcase. The showcase 1 includes a case body 10. The case body 10 is rectangular in plan view and is formed in a generally box-like shape with a space S provided inside. A case opening 9 is provided across the entire top surface of the case body 10. The case body 10 also includes a bottom wall 18 that forms the bottom surface of the case body 10 and insulating walls 12 that stand up from each side of the bottom wall 18. The lower sides of the side surfaces of the case body 10 are formed by the insulating walls 12 all around the circumference. Transparent walls 14 made of a transparent material such as acrylic resin are provided upright above the insulating walls 12 and all around the circumference of the case body 10. That is, each side surface of the case body 10 is formed by the insulating walls 12 and the transparent walls 14. The transparent walls 14 have spaces 15 ( FIG. 2 ) filled with air. The space 15 functions as an insulating air layer.

[0013] Fig. 2 is a longitudinal cross-sectional view of the showcase 1 taken along plane II in Fig. 1. Plane II passes through approximately the center in the left-right direction of the showcase 1. In Fig. 2, arrows A indicate the flow of cool air and the air curtain formed by the cool air. 2, a bottom plate 16 is provided in the internal space of the case body 10, extending in a direction intersecting the vertical direction of the showcase 1. The bottom plate 16 is formed in a rectangular shape in a plan view, and divides the internal space of the case body 10 into upper and lower spaces. The bottom plate 16 is disposed at approximately the same height as the upper ends of the insulating walls 12 and the lower ends of the transparent walls 14 in the vertical direction of the showcase 1.

[0014] In the space S of the case body 10, the space above the bottom plate 16 and surrounded by the transparent wall 14 is the display room 11 where products and other display items are placed. As described above, the entire top surface of the case body 10 is opened by the case opening 9, so the display room 11 is a space that communicates with the outside of the showcase 1 and is accessible from the outside through the case opening 9. In the internal space of the case body 10, a space located below the bottom plate 16 and surrounded by each of the insulating walls 12 and the bottom wall 18 forms a heat exchange chamber 13. In the heat exchange chamber 13, an evaporator 20 and a blower 22 that blows air to the evaporator 20 are arranged.

[0015] The case body 10 is placed on the top surface of a box-shaped machine room unit 30. A machine room 31, which is the internal space of the machine room unit 30, contains a condenser 24, a blower 26 that blows air to the condenser 24, a compressor 28, electrical components 29, etc. The compressor 28, the condenser 24, and the evaporator 20 are connected by refrigerant piping 23 to form a refrigeration cycle.

[0016] The case body 10 is provided with a pair of cold air ducts 40 that form a cold air flow path for sending cold air to the display chamber 11. Each cold air duct 40 is formed by a transparent wall 14 located in the front-to-rear direction of the showcase 1, an internal wall 42 that stands upright on the internal side of the case body 10, i.e., on the display chamber 11 side, relative to the transparent wall 14, and side panels 44 that are connected to both ends of the transparent wall 14 and the internal wall 42. The display chamber 11 and each internal space of the cold air duct 40 are separated by each internal wall 42.

[0017] Each of the internal walls 42 is a plate-like member that stands upright from the bottom plate 16 along each of the transparent walls 14 located in the front-to-rear direction of the showcase 1. The upper ends of the internal walls 42 are located lower than the upper ends of the transparent walls 14. Like the transparent walls 14, each of the internal walls 42 is provided across the entire left-to-right direction of the showcase 1. The side plates 44 are plate-like members that are arranged at both ends of the transparent wall 14 and the internal wall 42 and connect the transparent wall 14 and the internal wall 42 at the both ends. The side plates 44 are provided upright along the transparent walls 14 located on the left and right sides of the showcase 1.

[0018] FIG. 3 is a front view showing the cool air outlet 43. As shown in FIG. 3, each of the cool air ducts 40 has a duct opening 41 surrounded by the upper end of each of the transparent walls 14, the upper end of the inner wall 42, and a pair of side panels 44 located on both ends of these. Each of the duct openings 41 opens toward the display chamber 11 and faces each other. Each of the duct openings 41 is formed to extend across the entire showcase 1 in the left-right direction. In this embodiment, the duct opening 41 located on the rear side of the showcase 1 serves as a cold air outlet 43 from which cold air is blown out, and the duct opening 41 located on the front side of the showcase 1 serves as a cold air inlet 45 from which cold air is drawn in.

[0019] Fig. 4 is an enlarged view of a portion indicated by IV in Fig. 2. In Fig. 4, the cool air guided by the first air rectification member 50 is indicated by an arrow A1, and the cool air guided by the second air rectification member 60 is indicated by an arrow A2. A first rectification member 50 is provided inside one of the cold air ducts 40 at a position close to the cold air outlet 43. The first rectification member 50 is a long, plate-like member extending across the entire left-right direction of the showcase 1. As shown in FIG. 4 , one end 51 of the first rectification member 50, which is perpendicular to the longitudinal direction, is connected to the upper end of the inner wall 42. The upper end of the inner wall 42 forms an edge 19, which is the lower edge of the cold air outlet 43, i.e., the upstream edge of the edge of the cold air outlet 43 in the direction of air flow through the cold air duct 40. Therefore, at the cold air outlet 43, the first rectification member 50 is disposed at the edge 19 located on the opposite side of the case opening 9 across the cold air outlet 43.

[0020] Furthermore, the first air rectification member 50 extends in a direction perpendicular to the longitudinal direction so as to approach the transparent wall 14, and then is bent upward leaving a predetermined distance D1 from the transparent wall 14. The first air rectification member 50 is then bent toward the display chamber 11 so that the other end 53 in the direction perpendicular to the longitudinal direction is located in a position close to the cool air outlet 43. The first air rectification member 50 bent in this manner is bent in a substantially C-shape along the direction perpendicular to the longitudinal direction when viewed from the left and right of the showcase 1. As a result, the other end 53 is located above one end 51 with a predetermined width distance therebetween. The first air rectification member 50 bent in this manner is placed inside the cool air duct 40 at a predetermined distance D1 from the transparent wall 14.

[0021] 3, the first air rectification member 50 has air blowing holes 55, which are through-holes, on a plane extending from one end 51 to a bent portion 57, which is the portion closest to the transparent wall 14. A plurality of the air blowing holes 55 are provided over the entire length of the first air rectification member 50. The width dimension of the opening width D2 of the air blow hole 55 along the front-rear direction of the showcase 1 is larger than the width dimension of the interval D1.

[0022] A second rectifying member 60 is provided inside one of the cold air ducts 40 at a position close to the cold air outlet 43. The second rectifying member 60 is a long plate-like member extending across the entire left-right direction of the showcase 1. As shown in Fig. 4, one end 61 of the first rectifying member 50 in a direction perpendicular to the longitudinal direction is connected to an edge 17 at the upper end of the transparent wall 14 that faces the inside of the cold air duct 40.

[0023] The edge portion 17 forms the upper edge of the cold air outlet 43, i.e., the downstream edge of the edge of the cold air outlet 43 in the direction of air flow in the cold air duct 40. In other words, the second air rectification member 60 is disposed at a position downstream of the first air rectification member 50 across the cold air outlet 43 and closer to the case opening 9 than the first air rectification member 50. In other words, the second air rectification member 60 is positioned entirely above the first air rectification member 50 and on the outside of the showcase 1. In this embodiment, the one end 61 is fastened to the edge portion 17 at a plurality of locations at predetermined intervals along the longitudinal direction of the second air rectification member 60 by screw members 70, which are fastening members.

[0024] Furthermore, at the fastening point between the one end 61 and the edge portion 17, a spacer 72 such as a washer is sandwiched between the one end 61 and the edge portion 17. As a result, a plurality of gaps D3 extending along the left-right direction of the showcase 1 are formed between the one end 61 and the edge portion 17. The width of the gaps D3 is shorter than the interval D1.

[0025] In this way, in the showcase 1, the second rectifying member 60 can be attached to the cold air duct 40 using only the fastening member and the spacer 72, without providing any other members for supporting the second rectifying member 60 inside the cold air duct 40. Therefore, in the showcase 1, the second rectifying member 60 can be provided while suppressing an increase in the number of parts. In addition, even in the showcase 1 that uses the transparent wall 14, the second rectifying member 60 is provided at a position that is difficult to see through the transparent wall 14 when viewed from the side, and by suppressing an increase in the number of parts, a decrease in design can be suppressed.

[0026] The screw head of each of the screw members 70 is disposed at the edge 17 inside the space 15 of the transparent wall 14. That is, each of the screw members 70 and each of the spacers 72 are provided without being exposed entirely to the outside of the showcase 1. Therefore, the showcase 1 can be provided with the second air rectification member 60 while suppressing deterioration in design.

[0027] The other end 63 of the second air rectification member 60 extends toward the cold air outlet 43 and the display chamber 11. The other end 63 is disposed at a position that does not protrude further outward from the cold air duct 40 than the cold air outlet 43, i.e., toward the display chamber 11.

[0028] [1-2. Operation] The operation of the showcase 1 configured as above will be described below. When the showcase 1 is operated, the refrigerant is discharged from the compressor 28, condensed in the condenser 24, and then supplied to the evaporator 20. The refrigerant evaporated in the evaporator 20 is returned to the compressor 28.

[0029] The air inside the heat exchange chamber 13 is sent out to the evaporator 20 by the blower 22. After being cooled by the evaporator 20, the sent-out air passes through one of the cold air ducts 40 and is blown out as cold air from the cold air outlet 43 into the display chamber 11. This cold air cools the inside of the display chamber 11. Furthermore, the cold air that has cooled the inside of the display chamber 11 flows into the cold air duct 40 from the cold air inlet 45. In this way, the cold air generated inside the heat exchange chamber 13 circulates inside the showcase 1.

[0030] The flow of cool air blown out downward and forward from cool air outlet 43 and sucked into cool air inlet 45 forms an air curtain that flows along case opening 9. This air curtain thermally insulates the outside air outside case body 10 from the air inside display chamber 11, reducing the temperature rise inside display chamber 11 caused by the outside air.

[0031] 4, at the cold air outlet 43, the cold air A is rectified by the first rectification member 50 and the second rectification member 60. The first rectification member 50 is disposed upstream of the second rectification member 60 in the direction in which the air in the cold air duct 40 flows, i.e., in the direction in which the cold air A flows.

[0032] Near the cold air outlet 43, the cold air A flowing through the cold air duct 40 passes through either each of the air outlets 55 or the space between them, D1. Because the opening width D2 of the air outlet 55 is longer than the space between them, the cold air A1 that passes through each of the air outlets 55 has a larger volume and a faster flow velocity than the cold air A2 that passes through the space between them, D1. The cold air A1 that passes through each of the air outlets 55 is guided by the first air rectification member 50 and is blown out from the cold air outlet 43 into the display chamber 11 at a predetermined volume and velocity. The cold air A1 blown out into the display chamber 11 cools the display chamber 11 and flows along the case opening 9, forming an air curtain.

[0033] On the other hand, the cool air A2 that has passed through the gap D1 moves above the first air rectification member 50, is guided by the second air rectification member 60, and is blown out from the cool air outlet 43 into the display room 11. As described above, in the cold air outlet 43, the second air rectification member 60 is provided on the edge 17 located downstream in the direction of air flow in the cold air duct 40. Therefore, the cold air A2 guided by the second air rectification member 60 is blown out higher than the cold air guided by the first air rectification member 50, i.e., closer to the outside air outside the case body 10.

[0034] The cool air A2 guided by the second air rectification member 60 passes through the gap D1, which is a width dimension shorter than the opening width D2 of the air outlet 55, and therefore has a smaller flow rate and a slower flow velocity than the cool air A1 guided by the first air rectification member 50. For this reason, the cool air A2 guided by the second air rectification member 60 is less likely to generate vortices, and is less likely to draw in outside air.

[0035] The cold air A2 guided by this second rectifying member 60 flows so as to shield the cold air A1 guided by the first rectifying member 50 from the outside air, so that the showcase 1 prevents the outside air from being drawn into the display room 11, and the cold air can be sent out to the display room 11 more efficiently.

[0036] In addition, at the cold air outlet 43, the cold air A1 with a large flow rate and a fast flow velocity is blown into the display room 11 from a position farther away from the outside air, so that the showcase 1 can cool the display room 11 more efficiently.

[0037] Furthermore, part of the cool air A2 that has passed through the gap D1 passes through the gap D3 and flows along the upper surface side of the second air rectification member 60. This cools the second air rectification member 60. This prevents the temperature of the upper surface of the second air rectification member 60 from increasing due to the outside air, and suppresses the occurrence of condensation.

[0038] [1-3. Effects, etc.] As described above, in this embodiment, the showcase 1 includes the case body 10 in which the display chamber 11, which is a space for displaying products, is provided, and the cold air duct 40 in which the cold air outlet 43 that opens into the display chamber 11 is provided. A first air rectification member 50 extending toward the display chamber 11 is provided at a location of the edge 17 of the cold air outlet 43 that is located downstream in the direction of air flow of the cold air duct 40.

[0039] This allows the second rectifying member 60 to be attached to the cold air duct 40 with a simple structure without adding any additional fixing structure. Therefore, in the showcase 1, an increase in the number of parts can be suppressed, and even in the showcase 1 in which the transparent wall 14 is used, a decrease in design can be suppressed.

[0040] As in the present embodiment, a spacer 72 is provided between the cool air duct 40 and the edge portion 17, forming a gap D3 between the second air rectification member 60 and the edge portion 17. This cools the second air rectification member 60. This prevents the temperature of the upper surface of the second air rectification member 60 from increasing due to the outside air, and suppresses the occurrence of condensation.

[0041] As in the present embodiment, the cold air outlet 43 is provided with the first air rectification member 50, which is arranged upstream of the second air rectification member 60 in the direction of air flow in the cold air duct 40. The distance D1 of the cold air duct 40 through which the cold air rectified by the second air rectification member 60 passes is set smaller than the opening width D2 of the air blowing hole 55 through which the cold air rectified by the first air rectification member 50 passes. As a result, the cool air guided by the second air rectification member 60 flows in such a way as to shield the cool air guided by the first air rectification member 50 from the outside air. Therefore, in the showcase 1, the outside air is prevented from being drawn into the display room 11, and the cool air can be sent into the display room 11 more efficiently.

[0042] (Other embodiments) As described above, the first embodiment has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. Furthermore, it is also possible to combine the components described in the first embodiment above to create new embodiments. Therefore, other embodiments will be exemplified below.

[0043] In the above-described embodiment, the showcase 1 is a flat type, but is not limited to this, and may be of other types such as a type with shelves or a reach-in type.

[0044] The above-described embodiment is an example of one aspect of the present invention, and any modifications and applications are possible without departing from the spirit of the present invention. It should be noted that the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, substitutions, additions, omissions, etc. may be made within the scope of the claims or their equivalents. [Industrial Applicability]

[0045] The present disclosure is applicable to showcases, particularly showcases that form an air curtain by using cool air blown out from a duct. [Explanation of symbols]

[0046] 1. Showcase 10 Case body 11 Exhibition room 17 Edge 40 Cold Air Duct 41 Duct opening 43 Cold air outlet 50 1st wind regulating member (wind regulating member) 60 Second rectifying member (other rectifying member) D1 Spacing (width of cold air duct) D2 Opening width (width of cold air duct)

Claims

1. a case body in which a display room for displaying products is provided; a cool air duct provided with a cool air outlet opening into the display room; a wind rectifying member provided at an edge of the cold air outlet at a location downstream in the direction of air flow of the cold air duct and extending toward the display room; another air rectification member provided at the cold air outlet and arranged upstream of the air rectification member in the direction of air flow in the cold air duct, the air rectification member is disposed at a position where it does not protrude toward the display room, and the other end of the air rectification member is disposed outward relative to the other end of the other air rectification member; The other air rectification member has a plurality of air blast holes formed along the entire longitudinal direction, and the width of the opening of the air blast holes along the front-rear direction of the case body is larger than the distance between the other air rectification member and the outer inner wall surface of the cool air duct. A showcase characterized by:

2. A spacer is provided between the wind rectifying member and the edge portion to form a gap between the wind rectifying member and the edge portion.

2. The showcase according to claim 1.

3. The width dimension of the cold air duct through which the cold air rectified by the air rectification member passes is smaller than the width dimension of the cold air duct through which the cold air rectified by the other air rectification member passes.

3. The showcase according to claim 1 or 2.

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