JP2003287346A - Cooling storage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooling storage for preventing dewing of a lower rail by heating the lower rail by using exhaust heat of a condensing unit. <P>SOLUTION: This cooling storage 1 has a heat insulating box body 4 having a storage room 3 cooled by cooler inside by opening a front face by filling a heat insulating material 14 between an outer box 12 and an inner box 13, a sliding door for blocking up an opening of this heat insulating box body, and guided by a vertically arranged rail, and a machine room 7 for housing the condensing unit 11 having a compressor 8 for cooling the cooler, a condenser, and a fan 10 for the condenser under the storage room. A fan casing 21 is arranged in the machine room for partitioning both the suction side and the delivery side of the fan for the condenser so as to suck and blow off to the front face. A reinforcing angle material for holding the lower rail is arranged in front of the machine room. One of a space of this angle material is communicated with the delivery side of the fan for the condenser, and the other is communicated with the suction side of the fan for the condenser. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling storage in which a lower rail of a sliding door is prevented from dew condensation.

[0002]

2. Description of the Related Art A conventional cooling storage of this type is, for example, as disclosed in Japanese Patent Publication No. 6-35907, a reinforcing angle member for holding a sliding door fitted with glass for closing the opening of a heat insulating box. Since this is installed on the front side of the machine room, the angle material was heated halfway and the dew condensation on the lower rail due to the temperature difference with the lower rail was drained by the drain pipe.

[0003]

However, if the condensed water on the lower rail is simply drained as in the conventional case, the condensed water remains on the lower rail and is finally frozen, making it difficult to open and close the slide door. However, there was a problem that the ice generated on the lower rail created a gap in the door and the cold air in the refrigerator leaked.

The present invention has been made to solve the above problems, and provides a cooling storage for heating the lower rail by utilizing exhaust heat of the condensing unit to prevent dew condensation on the lower rail. It is provided.

[0005]

According to a first aspect of the present invention, there is provided a cooling storage room in which a heat insulating material is filled between an outer box and an inner box, a front surface is opened, and the inside is cooled by a cooler. A heat insulating box, a slide door guided by rails provided above and below while closing the opening of the heat insulating box, a compressor for cooling the cooler below the storage chamber, a condenser, and In a cooling storage with a machine room accommodating a condensing unit having a condenser fan, a fan casing is provided in the machine room to partition both the suction side and the discharge side of the condenser fan into front suction blowouts. , A reinforcing angle member is provided on the front surface of the machine room for holding the lower rail, one of the spaces of the angle member is on the discharge side of the condenser fan, and the other is on the suction side of the condenser fan. Part of the exhaust heat of the condenser and the compressor, which are communicated and cooled by the condenser fan, is supplied to the space formed by the reinforcing angle member that holds the lower rail, and dew condensation does not occur on the lower rail. I am trying.

In the cooling storage according to claim 2 of the present invention, a space is formed by the partition plate for partitioning the ceiling of the machine room and the lower rail in the reinforcing angle member, and exhaust heat from the machine room is supplied to this space. However, it is designed to prevent dew condensation on the lower rail.

According to a third aspect of the present invention, in the cooling storage cabinet, the reinforcing angle member is provided with a communication hole for allowing exhaust heat of the condensing unit to escape from the space of the angle member to the lower rail to further heat the lower rail. Condensation water falling from the glass surface of the sliding door can be evaporated on the lower rail.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of a low temperature showcase as an embodiment of a cold storage of the present invention, FIG. 2 is a front view of the low temperature showcase, FIG. 3 is a vertical sectional view of the low temperature showcase, and FIG. 4 is an exploded perspective view of the low temperature showcase. Fig. 5 and Fig. 5 are A- of Fig. 2.
6 is a sectional view taken along line A, FIG. 6 is a sectional view taken along line BB of FIG. 2, FIG. 7 is an enlarged sectional view of C of FIG. 5,
8 is an enlarged sectional view of D of FIG. 5, FIG. 9 is an enlarged sectional view of E of FIG. 6, FIG. 10 is an enlarged sectional view of F of FIG. 6, and FIG. 11 is a sectional view taken along line GG of FIG. 12 is a sectional view taken along line H- of FIG.
A sectional view taken along line H, FIG. 13 is an enlarged sectional view of I in FIG. 3, FIG. 14 is an enlarged sectional view of J in FIG. 3, and FIG. 15 is a sectional view of a low temperature showcase showing a flow of exhaust heat. is there.

A low temperature showcase 1 of the embodiment has a heat insulating box 4 having an opening 2 on the front surface and a storage chamber 3 inside, and a sliding door type for closing the opening 2 of the heat insulating box openably and closably. A front glass door 5, a rear glass door 6, and a condensing unit 11 including a compressor 8, a condenser 9 and a condenser fan 10 housed in a machine room 7 below the heat insulating box 4. ing.

As shown in FIG. 3, the heat insulating box body 4 includes a metal outer box 12, an inner box 13 disposed inside the outer box with a space, an outer box 12 and an inner box 13. It is composed of a foamed heat insulating material 14 filled in between. The outer box 12 is a top plate 12A formed by bending an integral flat plate into an inverted U shape.
And left and right side plates 12B and 12B, and a back plate 12C that closes the back surface
It is formed by. Side plates 12B, 12B and back plate 12C
And are formed longer than the inner box 13 formed in a box shape to form the machine room 7. In addition, in the upper part of the storage chamber 3, a cooler 15 that is cooled by the evaporation of the refrigerant that is compressed by the compressor 8 of the condensing unit 11 and liquefied by the condenser 9 and heat is exchanged with the cooler to cool the cool air. A cooler fan 16 for blowing out is provided, and cool air is circulated in the storage chamber 3 by this cooler fan.

Above and below the front opening 2, there are provided an upper rail frame 17 and a lower rail frame 18 for guiding the opening and closing of the front glass door 5 and the rear glass door 6, respectively, and they are located below each other at predetermined intervals. Two front and rear tracks that project upward and cross left and right
9 and 20 are formed. The lower rail frame 18 is integrally formed with a drain pipe 18A for draining the condensed water accumulated on the upper surface of the lower rail frame into the machine room 7.

The front glass door 5 and the rear glass door 6 are surrounded by frame-shaped sashes 5A and 6A, transparent double-glazings 5B and 6B fitted in the sashes, and the frame-shaped sash of the front glass door 5. It is composed of a handle 5C provided on 5A and a handle 6C provided on the frame-shaped sash 6A of the rear glass door 6.

The condensing unit 11 in the machine room 7
Is a condenser fan 10 which sucks air from the front side to the left side and discharges air to the rear side, and a condenser 9 which first heat-exchanges the air discharged from the condenser fan 10 to the rear side on the right side.
The compressor 8 is arranged on the front side, and the fan casing 21 that partitions the inside of the machine chamber 7 is provided on the suction side of the condenser fan 10.

An angle member 2 for reinforcing the machine room 7 is formed in a U shape at the inner lower ends of the left and right side plates 12B, 12B.
2, 22 are provided, and the lower rail frame 1 is provided in front of the machine room 7.
A reinforcing angle member 23 for holding 8 is provided. In front of the angle member 23 in front of the machine room 7, the machine room 7
A front panel 26 having an outside air suction hole 24 communicating with the suction side in the fan casing 21 of the condenser fan 10 and an exhaust hole 25 for discharging the exhaust heat of the condensing unit 11 to the outside is provided. The suction hole 24 is provided on the upper side of the front panel 26, and the discharge hole 25 is provided on the lower side.

A reinforcing angle member 27 is provided in an inverted U shape between the outer box 12 and the inner box 13 on the side of the opening 2.
This angle material is the upper angle material 28 and the left and right angle materials 2.
It is formed by combining 9 and 30. Further, the upper angle member 28 and the left and right angle members 29, 30 are formed by extrusion molding of an aluminum material, and are made thicker than the outer box 12 so that the amount of heat conduction can be increased. The left and right angle members 29, 30 are fixed to the lower rail frame 18 with bolts 32, 32 via U-shaped connecting plates 31, 31, respectively.

The left and right angle members 29, 30 have contact edges 29A, 29B which are bent at both edges and contact the inner surface of the outer box 12.
Straight pieces 29C, 30C, 30B and a straight piece 29C, which is spaced apart from the inner surface of the outer box 12 in the center and forms a space 33 between the outer box and the outer box 12.
It consists of 0C. Further, the upper angle member 28 is configured to connect the outer box 12 and the inner box 13, and an L-shaped front decoration panel 34 is provided so as to form a space 33 in the upper portion. Upper angle member 28 and left and right angle members 2
A space 33 formed by 9 and 30 communicates with each other, and a plurality of holes 35 communicating with the suction side of the fan casing 21 in the machine chamber 7 are provided in the lower portion of the left angle member 29, and in the lower portion of the right angle member 30. Has a plurality of holes 36 communicating with the discharge side in the machine chamber 7. Also, the left and right angle members 29, 30
A sealing material 37 for sealing the space 33 is provided at the lower end of the space, and the space is communicated with only the machine room 7.

Condensing unit 11 and cooler 15
The connecting pipe 38 that connects the left and right angle members 29, 3
0 contact piece 29B, bent portion 29D at the end of 30B,
The bent portions 29D and 30D are provided in the vicinity of 30D and are longer than the connecting pipe 38.

The reinforcing angle member 23 provided on the front side of the machine room 7 for holding the lower rail frame 18 is formed in the shape of a box whose cross-section is partially cut to form a space 39 therein.
The whole is formed in an inverted U shape. The horizontal angle portion 23A of the angle member 23 on which the lower rail frame 18 is mounted has the space 39 partitioned from the machine room 7 by a partition plate 40 that forms the ceiling of the machine room 7. The left and right angle portions 23B and 23C supporting the horizontal angle portion 23A have the space 39 of the left angle portion 23B on the suction side of the fan casing 21 in the machine chamber 7, and the space 39 of the right angle portion 23C in the machine chamber 7. They are connected to the discharge side respectively.

The horizontal angle portion 23A of the angle member 23 is provided with a communication hole 41 for supplying the exhaust heat in the space 39 to the lower rail frame 18.

In the low-temperature showcase constructed as described above, in the storage chamber 3, the high-pressure refrigerant gas compressed by the compressor 8 of the condensing unit 11 is condensed by the condenser 9 and liquefied to expand the liquid refrigerant (not shown). Cooler 15 via valve
The heat is exchanged with the air in the storage chamber 3 by the cooling action, and the cooled cool air is circulated in the storage chamber 3 by the cooler fan 16 so that the stored material can be cooled.
At this time, the inside of the storage chamber is cooled to a cold temperature, and the outer surface of the heat insulating box 4 on the side of the opening 2 of the outer box 12 where the dew condensation is likely to occur due to the temperature difference between the outside and the outside of the angle member 27 and the outer box 12. The exhaust heat flowing in the space 33 formed in 1 is used to heat the exhaust gas to suppress the formation of dew condensation.

That is, the exhaust heat is transferred from the suction hole 24 of the front panel 26 to the fan casing 2 by the condenser fan 10.
The air that has been sucked into 1 and has undergone heat exchange between the condenser 9 and the compressor 8, is mostly exhausted to the outside from the discharge hole 25 of the front panel 26, and is partially formed below the right angle member 30. Is supplied to the space 33 of the right angle material from the hole 36 formed therein, and is sucked into the fan casing 21 by the suction force of the condenser fan 10 from the hole 35 formed on the lower side of the left angle material 29, and It circulates in the space 33 of the angle member 27,
The outer surface of the outer box 12 on the side of the opening 2 is heated.

The left and right angle members 29, 30 make contact between the contact pieces 29A, 29B, 30A, 30B on both sides with the outer box 12 thermally, and increase the thickness of the outer box 12 so as to prevent the outside heat from flowing through the space 33. Increase the amount of heat conducted to the box 12,
The heating range can be widened.

Further, the left and right angle members 29, 30 are provided with the connecting pipe 38 near the bent portions 29D, 30D, so that the connecting pipe 37 is deformed by the force when the heat insulating material is foamed when the foamed heat insulating material 14 is filled. It is possible to prevent it from slipping or shifting its position.

By changing the opening area of the holes 35 and 36 provided under the left and right angle members 29 and 30, the storage chamber 3
The amount of exhaust heat circulated in the space 33 can be changed according to the cooling temperature.

The outer box 12 is formed by the contact pieces 29A, 29B, 30A and 30B of the left and right angle members 29 and 30 and the foam heat insulating material 14.
As a result, the foamed heat insulating material is prevented from being deformed due to shrinkage during curing, and correction at the time of deformation can be performed.

The reinforcing angle member 23 for holding the lower rail frame 18 has a space 39 formed therein so that a part of the exhaust heat that has been heat-exchanged in the machine room 7 can be supplied to the right angle portion 23C.
From the space 39 of the left angle portion 23C to the suction side in the fan casing 21 so that exhaust heat circulates between the space 39 and the machine room 7. Has been done. Therefore, the lower rail frame 18 is heated by the exhaust heat flowing in the space 39 of the horizontal angle portion 23C to prevent dew condensation. Condensation water attached to the slide doors 5 and 6 is transparent double glazing 5B and 6B.
And falls on the upper surface of the lower rail frame 18 and collects. Then, the condensed water accumulated on the upper surface of the lower rail frame 18 is drained into the machine room 7 through the drainage pipe 18A. The residual water of dew condensation remaining on the upper surface of the lower rail frame 18 without being drained by the drainage pipe 18A is directly heated by the exhaust heat supplied from the communication hole 41 of the horizontal angle portion 23A to be evaporated.

[0027]

As described above in detail, according to the cooling storage of claim 1 of the present invention, a heat insulating material is filled between the outer box and the inner box, the front surface is opened, and the inside is cooled by the cooler. A heat-insulating box having a storage chamber, a slide door guided by rails provided above and below while closing the opening of the heat-insulating box, and a compressor for cooling the cooler below the storage chamber, In a cooling storage provided with a condenser and a machine room accommodating a condensing unit having a condenser fan, a fan which partitions both the suction side and the discharge side of the condenser fan into the front suction blow-out in the machine room A casing is provided, and a reinforcing angle member is provided in the front of the machine room for holding the lower rail. One of the spaces of the angle member is on the discharge side of the condenser fan and the other is on the condenser fan. Since it is connected to the suction side, part of the exhaust heat of the condenser and the compressor, which is cooled by the condenser fan, is supplied to the space formed by the angle member for reinforcement that holds the lower rail, Condensation can be prevented from occurring on the.

According to the cooling storage of claim 2 of the present invention,
Since a space is formed by the partition plate for partitioning the ceiling of the machine room and the lower rail on the reinforcing angle member, exhaust heat from the machine room can be supplied to this space to prevent dew condensation on the lower rail.

According to the cooling storage of claim 3 of the present invention,
The reinforcing angle member is provided with a communication hole that allows the exhaust heat of the condensing unit to escape from the space of the angle member to the lower rail, so that the lower rail is heated more and dew drops from the glass surface of the slide door. Water can be evaporated on the lower rail.

[Brief description of drawings]

FIG. 1 is a perspective view of a low temperature showcase as an embodiment of a cooling storage according to the present invention.

FIG. 2 is a front view of a low temperature showcase.

FIG. 3 is a vertical sectional view of a low temperature showcase.

FIG. 4 is an exploded perspective view of a low temperature showcase.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a cross-sectional view taken along line BB of FIG.

FIG. 7 is an enlarged cross-sectional view of FIG. 5C.

FIG. 8 is an enlarged cross-sectional view of D in FIG.

9 is an enlarged cross-sectional view of E in FIG.

10 is an enlarged cross-sectional view of F in FIG.

11 is a cross-sectional view taken along line GG of FIG.

FIG. 12 is a cross-sectional view taken along line HH of FIG.

FIG. 13 is an enlarged sectional view of I in FIG.

14 is an enlarged cross-sectional view of J in FIG.

FIG. 15 is a cross-sectional view of a low temperature showcase showing a flow of exhaust heat.

[Explanation of symbols]

1 cooling storage 2 openings 3 storage room 4 Insulation box 8 compressor 9 condenser 10 Condenser fan 11 Condensing unit 12 outer box 13 inner box 14 Foam insulation 15 Cooler 21 fan casing 23 Angle material 39 space

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Shinji Iura             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Hiroshi Naganuma             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Hideki Yamaguchi             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Kazuo Ogawa             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd.

Claims (3)

[Claims] 1. An insulating box body having a storage chamber filled with a heat insulating material between an outer box and an inner box and having a front surface opened and being cooled by a cooler, and an opening of the heat insulating box body is closed. In addition, a sliding door guided by rails provided above and below, and a machine room accommodating a condensing unit having a compressor for cooling the cooler, a condenser, and a fan for the condenser below the storage chamber. In a cooling storage provided, a fan casing that partitions both the suction side and the discharge side of the condenser fan into the front suction blow-out is provided in the machine room, and reinforcement for holding the lower rail provided in the front of the machine room is provided. A refrigerating storage, characterized in that an angle member for use is provided, and one of the spaces of the angle member is connected to the discharge side of the condenser fan and the other is connected to the suction side of the condenser fan. 2. The cooling storage according to claim 1, wherein the reinforcing angle member constitutes the space by a partition plate partitioning a ceiling of a machine room and a lower rail. 3. The reinforcing angle member is provided with a communication hole for allowing exhaust heat of the condensing unit to escape from the space of the angle member to the lower rail. Cooled storage described.