JPH09152253A - Cooling storage chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve cooling effect in a storage chamber by a simple constitution, in a cooling storage chamber provided with a bottom covering on the bottom of the storage chamber. SOLUTION: This storage chamber 4 is provided with a recessed drain pan 7 on the bottom thereof while a cooler 8 is arranged on the low part 7B of the drain pan 7. A floor covering 25 is provided on the drain pan 7 in the shape of covering the cooler 8 and put on the drain pan 7 by abutting fore and rear legs 25B, 25B, formed at the fore and rear rims of the floor covering 25, against the drain pan 7 while venting units 41 are formed in the fore and rear legs 25B, 25B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold storage with a bottom cover provided at the bottom of a storage chamber.

[0002]

2. Description of the Related Art Conventionally, a cooling storage called a sushi neta case installed in a sushi store or the like has been disclosed in, for example, Shoukai 63-1.
As disclosed in Japanese Patent No. 59175 (F25D19 / 00), a horizontally long storage room surrounded by transparent glass is configured to store and store sushi material in the storage room. In this case, the storage room On the bottom drain pan, there was a cage-like bottom floor, and the sushi material was displayed on the placing surface of this bottom floor.

Hereinafter, the structure of the conventional sushi material case 100 will be described with reference to FIGS. 9 to 11. Case 10
A transparent bent glass 102 extending from the front side to the upper side, which is the customer side, is attached on a horizontally long base 101, and the inside of the bent glass 102 is partitioned by a partition plate 103 to the left and right to form a storage chamber 104 and its side. On the other hand, the machine room 105 is configured. The upper rear end of the bent glass 102 is connected to the front end of the upper panel 115, and the front lower end is connected to the upper end of the front wall 101A of the base 101. In addition, the rear end of the upper panel 115 and the rear wall 10 of the base 101.
Between the upper ends of 1B, a sliding door type transparent glass door D is mounted on the rear surface of the storage chamber 104 so as to be slidable in the left-right direction, whereby the rear surface of the storage chamber 104 is openably and closably closed.

A heat insulating wall 106 is provided between the base 101 and the storage chamber 104, and a drain pan 107 having a depressed central portion is provided on the upper surface of the heat insulating wall 106. The drain pan 107 is formed by bending a stainless plate, for example, and has a peripheral high-level portion 107A and a central low-level portion 107B. This drain pan 1
A cooler 1 including a refrigerant pipe on the lower portion 107B of 07
08 is fixed by a fixing member 120. Further, a similar cooler 109 is fixed to the lower surface of the upper panel 115 of the upper rear portion of the storage chamber 104 by the fixing member 120 located in the upper rear portion of the storage chamber 104. .

The lower part 1 of the drain pan 107
On the 07B, the bottoms 125, 125 in the shape of a cage are juxtaposed. The bottom sheet 125 is made of, for example, a stainless steel plate, and has a horizontal mounting surface 125A in which a plurality of through holes H are punched and formed, and leg portions 125B and 125B hanging from the front and rear edges of the mounting surface 125A. doing. Then, the sole 125 is housed in the lower portion 107B of the drain pan 107, and is placed with the lower ends of the leg portions 125B abutting on the upper edge of the lower portion 107B. At this time, the mounting surface 1
25A is spaced above the cooler 108, thereby preventing the sushi material to be displayed on the placing surface 125A from directly contacting the cooler 108.

On the other hand, the inside of the base 101 has a hollow shape which is open at the lower and left and right ends, and the lower surface is closed by the installation surface. As a result, an exhaust passage 114 is formed inside the base 101, extending from the machine room 105 to the lower side of the storage room 104 and opened at the intake ports 112 and exhaust ports 113 at the left and right ends.

On the other hand, a cooling device 110 is installed in the machine room 105.
The compressor 116 and the condenser 117 that configure the above, and the condenser blower 118 are installed. These compressors 11
The condenser 117 and the condensers 108 and 109 are connected together with a capillary tube or the like (not shown) to form a well-known refrigeration cycle.
Is housed in the condenser duct 119 on the partition plate 103 side of the compressor 116, and the condenser blower 118 is located in the suction port 119A of the condenser duct 119 on the compressor 116 side. The condenser duct 119 has fallen into the exhaust passage 114, and the discharge port 119 on the partition plate 103 side thereof.
B is open toward the exhaust port 113 in the exhaust passage 114 below the partition plate 103.

Further, the side cap 12 is provided on the exhaust port 113 side of the storage chamber 104 and on the intake port 112 side of the machine chamber 105.
The side cap 122 of the machine room 105 is provided with a plurality of slits 123. Further, a drain port 131 is formed on the partition plate 103 side of the lower portion 107B of the drain pan 107, and the drain port 131 is connected to a drain hose 133 drawn into the exhaust passage 114 from below. The drain hose 133 extends to the machine room 105 side, penetrates the rear wall 101B of the base 101 on the machine room 105 side, and is drawn to the outside. Bending glass 1 located in front of the machine room 105
02 is shaded so that the internal compressor 116 and the like cannot be seen.

With the above structure, the mounting surface 125A of the bottom 125
When the sushi material is displayed on the top and the compressor 116 and the condenser blower 118 are operated, the high-temperature and high-pressure gas refrigerant discharged from the compressor 116 flows into the condenser 117 and is air-cooled by the condenser blower 118 to be illustrated. After being decompressed by the capillary tube, it flows into the coolers 108 and 109 and evaporates. The air around the coolers 108 and 109 is cooled by the cooling action that occurs at that time, and natural convection in the storage chamber 104 causes the inside of the storage chamber 104 to be cooled from above and below to a predetermined refrigeration temperature.

On the other hand, when the condenser blower 118 is operated, outside air is sucked into the machine chamber 105 through the intake port 112 and the slit 123, and after passing around the compressor 116,
From the suction port 119A of the condenser cover 119 to the condenser 117
It is ventilated. Warm air after cooling the condenser 117, that is, exhaust gas, is discharged from the discharge port 119B of the condenser cover 119 to the exhaust passage 114 below the storage chamber 104, and the exhaust passage 11
After passing through the inside 4, the gas is discharged to the outside through the exhaust port 113.

On the other hand, the dew condensation water and the drip (hereinafter collectively referred to as drainage) from the sushi material dropped on the drain pan 107 lower portion 107B of the storage chamber 104 flow into the drainage port 131 and are discharged to the outside from the drainage hose 133. It was something that was done.

[0012]

Here, the storage room 104
Since the bent glass 102 and the door D made of glass are located on the front surface, the upper surface and the rear surface, heat intrusion from them is extremely large. Further, the upper cooler 109 is arranged in the rear upper part in the storage chamber 104 in consideration of the invasion of the outside air when the door D is opened and closed, but the cool air cooled by the cooler 109 is placed on the bottom surface 125. 125A descends to the rear.

On the other hand, the cooler 108 on the drain pan 107
The cooled air is cooled by the mounting surface 125A of the bottom 125.
The sushi material is circulated in the storage chamber 104 through the through hole H formed in the hole. However, when the sushi material is placed on the placing surface 125A, the through hole H is closed.

Therefore, in the conventional case, most of the coolers 10 are in use.
The heat exchange by the convection of the air with 8 is not performed, but the cooler 10
Since the cooling action from 8 is mostly due to the heat conduction of air, there is a problem that the cooling capacity of the storage chamber 104 is significantly reduced. On the other hand, in order to increase the convection of the cool air as much as possible, it is conceivable to increase the number of the through holes H formed in the bottom floor 125. However, when punching a stainless steel plate, burrs are generated around the periphery. Therefore, there is also a problem in that, if this is to be processed for safety, the number of operations is large and the work and time are remarkably wasted.

The present invention has been made in order to solve the above-mentioned conventional technical problems, and in a cooling storage with a bottom laid on the bottom of the storage chamber, the cooling effect in the storage chamber is improved by a simple structure. The purpose is to let.

[0016]

SUMMARY OF THE INVENTION The cooling storage of the present invention comprises:
The bottom of the storage room is provided with a recessed drain pan, and the cooler is arranged in the lower part of this drain pan.The bottom pan is provided on the drain pan so as to cover the cooler, and the front and rear edges of this bottom pan The bottom leg is placed on the drain pan by abutting the front and rear leg portions formed on the drain pan, and the front and rear leg portions are provided with ventilation portions.

According to the present invention, since the ventilation portions are formed in the front and rear legs of the bottom bed which are in contact with the drain pan, even if an article is placed on the bottom bed, the area around the cooler below the bottom bed and above the bottom bed can be improved. Air convection with the storage room is ensured. Therefore, with such a simple configuration, the cooling effect in the storage chamber can be significantly improved regardless of the amount of the articles. Further, by doing so, it is not necessary to form a large number of through holes on the mounting surface of the sole, so that the workability is also improved.

In the cooling storage according to the second aspect of the present invention, the front and rear legs are brought into contact with the high portion located at the edge of the drain pan in the above, and the bottom floor is laid across these high portions. .

According to the invention of claim 2, in addition to the above, by bringing the front and rear legs into contact with the high-level portion located at the edge portion of the drain pan, the bottom floor is laid across these high-level portions. The inconvenience that the bottom floor cannot be removed from the drain pan due to freezing of the drainage between the lower portion of the drain pan and the legs is prevented.

Further, in the cooling storage of the third aspect of the present invention, in each of the above inventions, a cooler is provided also at the upper rear portion of the storage chamber, and the bottom floor has an inclined shape with a high rear portion and a low front portion. .

According to the invention of claim 3, in addition to the above-mentioned inventions, a cooler is provided in the rear upper part of the storage chamber, and
Since the bottom is inclined so that the rear part is high and the front part is low, the cool air that descends from the cooler installed at the upper rear part of the storage room to the rear part of the bottom part flows smoothly forward along the slope. . Therefore, regular natural convection of cold air that descends in the rear part and rises in the front part is formed in the storage chamber, thereby uniformly cooling the storage chamber and increasing the cooling rate. It will be possible. In particular, since the front part of the bottom bed is inclined low, the visibility of the articles placed on the bottom bed from the front is improved, and the effect of displaying the articles to the customer can be improved.

[0022]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a sushi material case C as an embodiment of the cooling storage of the present invention, and FIG. 2 is AA of FIG.
3 is a sectional view taken along line BB in FIG. The vertical front view of the sushi material case C is shown in FIG.
Since it is the same as 0, it is omitted.

The case C of the embodiment is installed, for example, in the back of a counter of a sushi restaurant, and a transparent bent glass 2 extending from the front side to the upper side, which is the customer side, is mounted on the horizontally long base 1 of the case C. Partition plate 3 inside this bent glass 2
The storage room 4 and the machine room 5 on the side of the storage room 4 are formed by partitioning the storage room 4 into left and right. The upper rear end of the bent glass 2 is connected to the front end of the upper panel 15, and the front lower end is connected to the upper end of the front wall 1A of the base 1. Also,
Between the rear end of the upper panel 15 and the upper end of the rear wall 1B of the base 1, a sliding door type transparent glass door D is mounted on the rear surface of the storage chamber 4 so as to be slidable in the left and right directions. The rear surface of the storage chamber 4 is closed so as to be openable and closable.

A heat insulating wall 6 is provided between the base 1 and the storage chamber 4, and a drain pan 7 having a concave central portion is provided on the upper surface of the heat insulating wall 6. The drain pan 7 is formed by bending a stainless plate, for example, and has a high-order portion 7A at the peripheral edge and a low-order portion 7B at the center. A cooler 8 composed of a refrigerant pipe is fixed by a fixing member 20 on the lower portion 7B of the drain pan 7, and a similar cooler 9 is also provided on the lower surface of the upper panel 15 at the upper rear portion of the storage chamber 4. It is located in the upper and rear part of the inside of 4 and is fixed by a fixing member 20.

A bottom 25 is placed on the high-level portions 7A, 7A in front of and behind the drain pan 7. The bottom 25 is formed by bending a heat conducting plate such as stainless steel, and has a mounting surface 25A on the upper surface and the mounting surface 25A.
And leg portions 25B and 25B bent downward from the front and rear edges.

At this time, both leg portions 25B, 25 of the bottom 25
B is formed so as to spread outward, and further, the rear leg portion 25B hangs down and then diagonally downward, and also the front leg portion 2
5B extends a little after hanging down, and extends forward, and the ends of the 5B are in contact with the high parts 7A, 7A, whereby the placing surface 25A of the bottom 25 is high at the rear as shown in FIG. The bottom 25 is laid across the high-level portions 7A, 7A in a state where the front portion has a low inclined surface (inclined shape). In that state,
The placing surface 25A is spaced above the cooler 8 and covers it, thereby preventing the sushi material to be displayed on the placing surface 25A from directly contacting the cooler 8. There is.

Further, the front and rear legs 25B, 25B are cut out at two positions facing each other in a predetermined range, and ventilation parts 41 ... Are formed therein. Thereby,
The storage chamber 4 above and below the floor 25 is communicated with each other at the leg portion 25B.

On the other hand, the inside of the base 1 has a hollow shape opened at the lower and left and right ends, and the lower surface is closed by the installation surface. As a result, the inside of the base 1 extends from the machine room 5 to the lower side of the storage room 4, and the intake ports 12 and the exhaust ports 1 at the left and right ends
An exhaust passage 14 that opens at 3 is formed.

On the other hand, in the machine room 5, a compressor 16 and a condenser 17 which constitute a cooling device 10, and a condenser blower 18
And is installed. The compressor 16, the condenser 17, and the coolers 8 and 9 are connected together with a capillary tube or the like (not shown) to form a well-known refrigeration cycle. The condenser 17 is the partition plate 3 side of the compressor 16. In the condenser duct 19 at the condenser blower 1
8 is located in the suction port (corresponding to 119A in FIG. 10) on the compressor 16 side of the condenser duct 19. The condenser duct 19 has fallen into the exhaust passage 14, and its discharge port (corresponding to 119B in FIG. 10) on the partition plate 3 side is open toward the exhaust port 13 in the exhaust passage 14 below the partition plate 3. .

Further, the exhaust port 13 side of the storage chamber 4 and the intake port 12 side of the machine chamber 5 are closed by side caps 21 and 22, and the side cap 22 of the machine chamber 5 has a plurality of slits 23. A similar slit 26 is also formed in the rear wall 24 of the machine room 5. Further, a drainage port 31 is formed on the partition plate 3 side of the lower portion 7B of the drain pan 7, and a drainage hose 33 drawn into the exhaust passage 14 located below the storage chamber 4 is formed in the drainage port 31. Connected from below. Then, the drain hose 33 extends to the machine room 5 side, then penetrates the rear wall 1B of the base 1 and is drawn to the outside. The bent glass 2 located in front of the machine room 5 is shaded so that the compressor 16 and the like inside cannot be seen. In addition, 51 is an operation stop switch.

Next, the operation of case C of the present invention having the above configuration will be described. First, the sushi material is displayed on the placing surface 25A of the bottom 25. At this time, since the mounting surface 25A is an inclined surface having a high rear portion and a low front portion, the rear sushi material can be easily seen from the front. Therefore, the visibility from the bent glass 2 is improved and the display effect of the sushi material is improved.

Then, the compressor 16 and the condenser blower 1
When 8 is operated, the high-temperature and high-pressure gas refrigerant discharged from the compressor 16 flows into the condenser 17 and the condenser blower 18
After being air-cooled and decompressed by a capillary tube (not shown), it flows into the coolers 8 and 9 and evaporates. The air around the coolers 8 and 9 is cooled by the endothermic action that occurs at that time. Of these, the lower part 7B cooled by the cooler 8
The cool air inside cools the sushi material on the upper floor 25 from the lower side, and circulates from the ventilation portions 41 formed on the front and rear legs 25B, 25B of the lower floor 25 into the upper storage chamber 4. To do.

On the other hand, the cool air cooled by the cooler 9 provided in the upper rear part of the storage chamber 4 falls to the rear part of the mounting surface 25A of the bottom 25, and the temperature is increased by the inflow of outside air by opening and closing the door D. The rear part of the storage chamber 4 that easily rises is cooled first, but at this time, since the mounting surface 25A of the bottom 25 is a slope having a high rear part and a low front part, the bottom surface of the cooler 9 is removed from the cooler 9. 25
The cool air that drops to the rear of the mounting surface 25A smoothly flows forward along the slope of the mounting surface 25A. Therefore,
As shown by the arrow in FIG. 3, regular natural convection of cool air that descends at the rear and rises at the front is formed in the storage chamber 4, whereby the inside of the storage chamber 4 has a predetermined refrigeration temperature. It is uniformly cooled, and the cooling rate is high.

Further, since the bottom sheet 25 is composed of a stainless steel plate having good heat conductivity, the temperature variation on the placing surface 25A of the bottom sheet 25 is alleviated, so that the placing surface 25A is placed on the placing surface 25A. It is possible to cool the displayed sushi ingredients uniformly and quickly. Particularly, the mounting surface 2 of the bottom 25
Even if sushi material is placed on 5A, legs 25B, 25B
Since the ventilation part 41 is not closed, the cool air that has exchanged heat with the cooler 8 can be surely convected from the ventilation part 41 into the storage chamber 4, and the cooling effect is improved. Further, since it is not necessary to form the through hole (H) in the bottom 25, the workability is also improved.

Further, the bottom 25 is the high-level portion 7 of the drain pan 7.
Since it was installed across A, the lower part 7B of the drain pan 7
It is also possible to eliminate the inconvenience that the bottom floor 25 cannot be detached from the drain pan 7 because the bottom floor 25 is not frozen to the drain pan 7 by the drainage collected at.

On the other hand, when the condenser blower 18 is operated, the intake port 12 and the slits 23, 26 are indicated by arrows in the figure.
More outside air is sucked into the machine room 5, passes around the compressor 16, and then the condenser 1 is discharged from the suction port of the condenser cover 19.
Ventilated to 7. Warm air after cooling the condenser 17, that is, exhaust gas, is discharged from the discharge port of the condenser cover 19 to the exhaust passage 14 below the storage chamber 4, passes through the exhaust passage 14 and is discharged to the outside from the exhaust port 13. It

On the other hand, the drain pan 7 lower portion 7B of the storage chamber 4
The drainage dropped on the top flows into the drainage port 31 and is discharged from the drainage hose 33 to the outside.

Next, FIGS. 4 and 5 show another embodiment of the present invention. In each figure, the same reference numerals as those in FIGS. 1 to 3 have the same or similar functions. In this case, two bottom beds 25 are arranged side by side on the left and right, and front and rear legs 25B, 25B are bent downward. Also,
A plurality of through holes H are formed in the mounting surface 25A, and vent holes 41, which are circular holes, are formed in the front and rear leg portions 25B, 25B at positions facing each other.

Then, the bottoms 2 and 25B are brought into contact with the lower portion 7B of the drain pan 7 by contacting the lower ends thereof with the bottom 2
5 and 25 are placed, but the ventilation part 4 is also formed by such a configuration.
Even if the sushi material is placed on the bottom floors 25, 25 and the through hole H is blocked by 1, the surroundings of the cooler 8 below the bottom floors 25, 25 and the storage chamber 4 above the bottom floors 25, 25 are maintained. Air convection is ensured. Therefore, the cooling effect in the storage chamber 4 can be significantly improved regardless of the amount of sushi material.

Next, FIGS. 6, 7, and 8 show still another embodiment of the present invention. 1 to 3 in each figure.
The same reference numerals have the same or similar functions. In this case, the front and rear legs 25B, 25B of the sole 25 hang down and are similarly bent obliquely outward and downward to form the high part 7A,
It is in contact with 7A. Further, in FIG. 7, a plurality of through holes H are formed in the mounting surface 25A, but in FIG. 8, they are not formed. Further, the same ventilation portions 41, ... As in FIGS. 2 and 3 are formed by notches at the positions where the front and rear legs 25B, 25B face each other.

With this structure also, even if the sushi material is placed on the bottom sheet 25 and the through holes H are blocked by the ventilation portions 41, ... (In the case of FIGS. 6 and 7), the bottom portion of the bottom sheet 25 is covered. Convection of air between the periphery of the cooler 8 and the storage chamber 4 above the floor 25 is ensured. Therefore, the cooling effect in the storage chamber 4 can be significantly improved regardless of the amount of sushi material.

In each embodiment, the lower portion 7 of the drain pan 7 is
Although the cooler 8 is provided on B, the invention is not limited to this, and the lower part 7B
The cooler 8 may be additionally provided on the back surface. Further, although the present invention is provided to the sushi item case in the embodiments, the present invention is not limited thereto, and the present invention is effective to various cooling storages having a structure in which a bottom is provided at the bottom of the storage chamber.

[0043]

As described above in detail, according to the present invention, since the ventilation portions are formed in the front and rear legs of the bottom bed that abut the drain pan, even if an article is placed on the bottom bed, the cooling of the bottom of the bottom bed is performed. Air convection is secured between the container and the storage room above the floor. Therefore, with such a simple configuration, the cooling effect in the storage chamber can be significantly improved regardless of the amount of the articles. Further, by doing so, it is not necessary to form a large number of through holes on the mounting surface of the sole, so that the workability is also improved.

According to the second aspect of the present invention, in addition to the above, by bringing the front and rear legs into contact with the high-level portion located at the edge of the drain pan, the bottom floor is laid across these high-level portions. Therefore, the inconvenience that the drainage is frozen between the lower portion and the leg portion of the drain pan and the bottom floor cannot be removed from the drain pan is prevented in advance.

Further, according to the invention of claim 3, in addition to each of the above inventions, a cooler is provided also in the rear upper part of the storage chamber, and the bottom floor has an inclined shape with a high rear part and a low front part. The cool air that descends from the cooler provided at the upper rear part of the storage chamber to the rear part of the bottom floor smoothly flows forward along the inclination. Therefore, regular natural convection of cold air that descends in the rear part and rises in the front part is formed in the storage chamber, thereby uniformly cooling the storage chamber and increasing the cooling rate. It will be possible. In particular, since the front part of the bottom bed is inclined low, the visibility of the articles placed on the bottom bed from the front is improved, and the effect of displaying the articles to the customer can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a sushi item case as an embodiment of a cooling storage box of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is a plan sectional view of a sushi material case according to another embodiment of the present invention.

5 is a vertical cross-sectional side view of a storage room portion of the sushi news item case of FIG. 4. FIG.

FIG. 6 is a plan sectional view of a sushi material case according to still another embodiment of the present invention.

7 is a vertical sectional side view of a storage room portion of the sushi material case of FIG.

FIG. 8 is a diagram showing another embodiment of FIG. 7.

FIG. 9 is a plan sectional view of a conventional sushi material case.

FIG. 10 is a vertical sectional front view of a conventional sushi material case.

FIG. 11 is a vertical sectional side view of a storage room portion of a conventional sushi material case.

[Explanation of symbols]

 2 Bent glass 4 Storage room 7 Drain pan 7A High part 7B Low part 8 Cooler 9 Cooler 16 Compressor 25 Bottom 25A Mounting surface 25B Leg 41 Ventilation C Sushi neta case D Door

Claims (3)

[Claims] 1. A cooling storage cabinet comprising a recessed drain pan at the bottom of a storage chamber, wherein a cooler is arranged at a lower part of the drain pan, and a bottom bed is provided on the drain pan so as to cover the cooler. A cooling storehouse characterized in that the front and rear legs formed on the front and rear edges of the bottom floor are placed on the drain pan by contacting the drain pan, and the front and rear legs are formed with ventilation portions. . 2. The cooling storage cabinet according to claim 1, wherein the front and rear legs are brought into contact with the high-level portion located at the edge portion of the drain pan, and the bottom floor is laid across the high-level portions. 3. The cooling storage cabinet according to claim 1, wherein a cooler is provided also at a rear upper portion of the storage chamber, and the bottom floor has an inclined shape having a high rear portion and a low front portion.