JP2001221559A - Cold storage open showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cold storage open showcase capable of forming a sufficient air curtain at a part for increasing a diffusing amount and a suction amount of a cold air of a corner and enhancing a cooling effect of a commodity. SOLUTION: The suction amount of the cold air to a suction port of the corner at a lower outer peripheral edge of a commodity storage part is increased. Thus, a sufficient air curtain is formed at an open surface of the corner, and the cooling effect of the commodity stored in the part is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerated open showcase which is installed in a supermarket or the like and has at least two front sides and one side face opened.
The present invention relates to a refrigerated open showcase capable of improving a cooling effect of a corner portion.

[0002]

2. Description of the Related Art A refrigerated open showcase of this type includes a linear unit having an open front and a corner type unit having an open front and one side connected to both ends. Some of them are connected back to back, the former is installed along the wall, and the latter is installed at the center of the floor.

Each of the above units blows cool air from a cool air outlet on a ceiling toward a suction opening on a lower outer peripheral edge of a display stand to form an air curtain on an open surface and store goods stored in a refrigerator. It is designed to keep cool.

[0004]

As described above, in an open showcase provided with a corner-type unit having an open front and one side, a cool air outlet at a corner where the front and side intersect, and In general, the cool air suction port at the lower part of the display stand has a butt structure that forms an obtuse angle.

[0005] As a result, there is a problem that the amount of cool air blown out to the corner portion is insufficient, a sufficient air curtain is not formed in the portion, and the cooling effect of the commodities stored in the corner portion is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. By increasing the amount of cold air blown out and the amount of air sucked into a corner portion, a sufficient air curtain is formed at that portion to cool the product. The purpose is to provide a refrigerated open showcase that can enhance the effect.

[0007]

In order to achieve the above object, a refrigerated open showcase of the present invention has an outer case and an inner case which are open at least on the front and one side and have a product storage section inside. A cool air circulation path containing a cooler and a blower is formed between the cool air circulation paths, and the cool air blown out from an upper outlet of the cool air circulation path toward a suction opening at an outer peripheral edge of a lower part of the product storage unit. In the refrigerated open showcase in which an air curtain is formed on the open surface to keep the product in the product storage unit cool, the upper portion of the corner portion where the front surface and one side face intersect, the portion facing the corner portion of the product storage portion At the corner of the lower outer peripheral edge of the product storage unit, a wide portion is formed in which both ends of the inner edge are connected at an obtuse angle to the inner edge of the front and one side of the suction port. , It is characterized in that bored a plurality of suction ports to the wide portion of the. According to the invention having the above configuration, since the amount of cold air sucked into the suction port of the corner portion at the lower outer peripheral edge of the commodity storage portion increases, a sufficient air curtain is formed on the open surface of the corner portion, and the product is stored in that portion. The cooling effect of the product is enhanced.

In the above refrigerated open showcase,
The corner where the front and one side of the inner case intersect,
It is a slope with a corner cut shape pointing up and down, and on this slope,
It is preferable to provide a plurality of blow holes for blowing cool air at the corner. By doing so, the cool air is also blown out to the corners from the outlets on the oblique surfaces facing in the vertical direction, so that the cooling effect of the products in the corners is further enhanced.

In the above refrigerated open showcase,
It is preferable to provide a slant duct having a plurality of cool air outlets projecting obliquely upward and forward at a corner where the front surface and one side surface at the bottom of the inner case intersect with each other, and facing the corner at the front slant surface. . In this case, since the cool air is blown obliquely upward from the inclined duct at the corner at the bottom of the inner case, the effect of cooling the commodities at the corner is further enhanced.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 is an overall perspective view showing a refrigerated open showcase to which the present invention is applied, FIG. 2 is a cross-sectional view showing a refrigerated open showcase, and FIG. 3 is a perspective view including a partial cross-section showing a corner portion of the refrigerated open showcase. FIG. 4A is a plan view showing a corner portion of a cool air outlet,
(B) is a side sectional view thereof, and FIG. 5 is a duct member having an outlet at a corner-shaped oblique surface of a corner portion where the front surface and one side surface of the inner case intersect, and the front surface and one side surface of the inner case bottom. FIG. 6 is a front view of FIG. 5 as viewed from the corner, and FIG. 7 is a bottom view of the merchandise storage unit, showing the relationship between the oblique surface of the intersecting corner and an inclined duct having a blowout hole facing the corner. It is a top view which shows the wide part in which several suction ports were perforated in the corner part of the outer peripheral edge.

First, FIGS. 1 and 2 show a refrigerated open showcase 1 to which the present invention is applied. Figure 1,
In FIG. 2, reference numeral 3 denotes an inner case, 8 denotes an outer case as a heat insulating housing, and 4 denotes a side plate. A space 6 for product display as a cool box opened forward by the inner case 3, the outer case 8 and the side plate 4. And a plurality of display shelves 7 fixed to the inner case 3 can display products in multiple stages.

Between the inner case 3 and the outer case 8 disposed outside the inner case 3, insertion passages 9b and 9c as cold air circulation passages are provided on the front side and side surfaces, respectively. By driving the fan 10, which is a blower provided in the front and side insertion passages 9b and 9c, air is taken in from the intake port 11 provided in the lower front part of the commodity display space 6, and the taken air is removed. By cooling by the cooler R and causing convection in the direction of the arrow in the figure, the inside of the commodity display space 6 can be cooled to a predetermined temperature at which frozen foods, fresh foods, and the like can be displayed.

An intake port 1 is provided at a lower portion from a discharge port 12 which is an outlet provided at an upper front portion of the product display space 6.
The cold air is discharged toward 1 and an air curtain is created in front of the product display space 6, so that the diffusion of cool air in the product display space 6 and the intrusion of heat from the outside are prevented, and the product display space. The temperature in the section 6 is kept constant.

Further, as shown in FIG. 3, a part of the cool air fed from the fan 10 flows toward the corner portion insertion passage 9a in the front insertion passage 9b downstream of the cooler R. A punching plate 2 having a large number of ventilation holes formed therein is provided so as to open the side of the corner portion insertion passage 9a. By partitioning by the partition plate 5 which faces in the direction, the corner portion insertion passage 9a which faces in the vertical direction of the corner portion and the front side insertion passage 9b below the punching plate 2 communicate with each other.

In the embodiment of the refrigerated open showcase of the present invention, as shown in FIG. 3 and FIG. 4, the corner discharge port 12a, which is the upper outlet of the corner where the front surface and one side face intersect, is viewed in plan. In addition to the corner cut shape that forms an obtuse angle with the front and side surfaces, both ends of the inner edge are connected to the inner end of the front and one side surface intake ports 11 at an obtuse angle with the corner portion of the lower outer peripheral edge of the product storage unit. A corner inlet 11a is formed as a wide-width inlet, and a plurality of unillustrated partitioned inlets are formed in the corner inlet 11a.

At the corner where the front surface and one side surface of the inner case 3 intersect, there is provided a cylindrical duct member 14 having a vertically inclined corner-shaped inclined surface 14a.
The duct member 14 has the front and side insertion passages 9 inside.
b, 9c or a plurality of not-shown insertion holes communicating with the corner portion insertion passage 9a, and a plurality of outlet holes 15 for blowing cool air into the corner portion are formed in the inclined surface 14a.

Furthermore, a plurality of cold air outlets 17a projecting obliquely and upward from the front of the bottom portion of the inner case 3 where one side surface intersects the front portion, and facing the corner portion on the front oblique surface. An inclined duct and 17 are provided.

Next, the operation of the refrigerated open showcase will be described.

First, by driving the fan 10 provided in the front and side insertion passages 9b and 9c, air is taken in and taken in through the inlet 11 provided in the lower front part of the commodity display space 6. The air is cooled by the cooler R and convected in the direction of the arrow in FIG. 2, whereby the inside of the commodity display space 6 is cooled to a predetermined temperature at which frozen foods, fresh foods, and the like can be displayed.

The cool air that has passed through the front and side insertion passages 9b and 9c is discharged from a discharge port 12 at the upper front of the product display space 6 toward a lower intake port 11, and the cool air is discharged. An air curtain is formed on the front surface of the display space 6, thereby preventing the diffusion of cool air in the product display space 6 and the intrusion of heat from the outside, and keeping the temperature in the product display space 6 constant. Can be held.

Here, a part of the cool air blown from the fan 10 toward the front side insertion passage 9b flows upward through the ventilation holes of the punching plate 2 disposed above, while the other cool air flows. The air path is deflected by the punching plate 2 and guided to the open end of the punching plate 2 near the corner.

The cool air led to the open end is shown in FIGS.
As shown in the figure, the product flows from the corner portion discharge port 12a, which has a corner cut-out shape at the upper part of the corner portion, which flows upward through the corner portion insertion passage 9a that is directed upward and downward of the corner portion partitioned by the partition plate 5 that faces upward and downward. The liquid is discharged toward a corner inlet 11a (see FIG. 7) which is a wide portion on the lower outer peripheral edge of the storage unit.

Here, as shown in FIG. 7, the corner intake port 11a is formed in a wide area having a wide portion, and therefore, is disposed at a diagonal position opposite to the corner discharge port 12a. Even though the cooling air is blown out from the corner portion discharge port 12a, the amount of cold air sucked into the corner portion intake port 11a increases by being sufficiently sucked by a fan provided at the corner portion. A sufficient air curtain is formed on the open surface, and the cooling effect of commodities stored in that portion can be enhanced.

Further, as shown in FIGS. 3, 5 and 6, the cool air flowing upward through the corner insertion passage 9a is supplied to a cylinder provided at the corner where the front surface and one side surface of the inner case 3 intersect. It flows into the duct member 14 and is discharged from the outlet hole 15 of the inclined surface 14a having a vertically cut corner toward the corner intake 11a (see FIG. 7).

Therefore, since the cool air is also blown out to the corner portion from the blowout hole 15 of the inclined surface 14a which faces in the vertical direction, the cooling effect of the product in the corner portion is further enhanced.

In addition, a part of the cool air sent out by each fan 10 and flowing through each of the insertion passages 9a, 9b, 9c is inclined at a corner provided at the bottom of the inner case 3 where the front and one side intersect. A plurality of cold air outlets 17 which are also guided to the air duct 17 and face a corner provided on the front inclined surface.
a is discharged toward the corner inlet 11a.

By doing so, the cool air is blown obliquely upward from the inclined ducts 17 at the corners at the bottom of the inner case 3, so that the effect of cooling the products at the corners can be further enhanced.

Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and even if there are changes and additions without departing from the gist of the present invention. Included in the invention.

For example, the corner intake 11a in the present embodiment is formed with a wide area having a wide portion, but the output of the fan 10 disposed at a corresponding position limited to the area is limited. The air may be increased to positively suck in the cool air blown out from the corner inlet 11a.

[0030]

(A) According to the first aspect of the present invention, since the amount of cool air sucked into the suction port of the corner portion on the lower outer peripheral edge of the commodity storage portion increases, sufficient air is supplied to the open surface of the corner portion. The curtain is formed, and the cooling effect of the goods stored in that part is enhanced.

(B) According to the second aspect of the present invention, since the cool air is also blown out to the corners from the outlets on the slanting surfaces facing in the vertical direction, the cooling effect of the products in the corners is further enhanced.

(C) According to the third aspect of the present invention, since the cool air is blown obliquely upward from the inclined duct at the corner of the inner case bottom, the effect of cooling the commodities at the corner is further enhanced.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a refrigerated open showcase to which the present invention is applied.

FIG. 2 is a sectional view showing a refrigerated open showcase.

FIG. 3 is a perspective view including a partial cross section showing a corner portion of a refrigerated open showcase.

FIG. 4A is a plan view showing a corner portion of a cool air outlet,
(B) is a side sectional view thereof.

FIG. 5 shows a duct member having an outlet at a corner where the front face and one side face of the inner case intersect, and an outlet hole facing the corner part at an oblique surface of the corner part where the front face and one side face intersect at the bottom of the inner case. It is a top view which shows the relationship with the inclined duct which has.

FIG. 6 is a front view of FIG. 5 as viewed from a corner.

FIG. 7 is a plan view showing a wide portion in which a plurality of suction ports are formed in a corner portion of a lower outer peripheral edge of the product storage unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Refrigerated open showcase 2 Punching plate 3 Inner case 4 Side plate 5 Partition plate 6 Product display space 7 Display shelf 8 Outer case 9a Corner insertion passage (cool air circulation passage) 9b Front insertion passage (cool air circulation passage) 9b Side surface Side insertion passage (cool air circulation path) 10 Fan (blower) 11 Intake port 11a Corner intake port (suction port) 12 Discharge port 12a Corner discharge port (outlet port) 14 Duct member 14a Inclined surface 15 Outlet port 17 Inclined duct 17a Air outlet R Cooler

Claims (3)

[Claims] At least a front surface and one side surface are open,
A cool air circulation path containing a cooler and a blower is formed between the outer case and the inner case each having a product storage section therein, and a cool air circulation path is formed from the upper outlet to the lower section of the product storage section. In a refrigerated open showcase in which an air curtain is formed on the open surface by cold air blown out toward a suction port on an outer peripheral edge to keep products in a product storage unit, a corner where the front and one side intersect In the upper part of the product, an outlet for blowing cool air toward the corner of the product storage unit is provided, and at the corner of the lower outer peripheral edge of the product storage unit, both ends of the inner edge are the front side and one side of the suction port part. A refrigerated open showcase characterized by forming a wide portion that forms an obtuse angle with the inner end and forming a plurality of suction holes in the wide portion. 2. A corner portion where a front surface and one side surface of the inner case intersect is a slanted surface having a corner cut shape pointing in a vertical direction,
The refrigerated open showcase according to claim 1, wherein a plurality of blowout holes for blowing cool air to a corner portion are provided on the inclined surface. 3. An inclined duct having a plurality of cold air blow-out holes projecting obliquely upward and forward from a corner where a front surface and one side surface at the bottom of the inner case intersect, and facing the corner on a front inclined surface. The refrigerated open showcase according to claim 1 or 2, further comprising: