JPS6237665A - Refrigerated counter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention relates to a refrigerated Syrah case used as a dry display case in sushi restaurants and the like.

(Japanese Patent Application Laid-Open No. 57-164017 (A47F3104))
The folded display case discloses a configuration in which a compressor, condenser, and blower fan are arranged in the machine room, and an opening and exhaust guide surface are formed in the unit base.
In the flat display case of Publication No. 66 (A47F310゛4), a compressor and a blower fan are placed in the machine room, and a fin tube condenser is placed in the passage directly below the storage room, so that the machine room and the passage are communicated. A configuration with a duct is disclosed.

e→ Problems to be Solved by the Invention Both of the above two conventional techniques attempt to cool the compressor and condenser by forced ventilation using a blower fan, but the problem is that the outside air sucked into the machine room from outside is In order to cool either the compressor or condenser first and the other later, the compressor or condenser that is cooled later must be cooled with outside air that has risen in temperature and has become warm. However, a problem arose in that the cooling efficiency decreased. In particular, when the condenser is placed in a passageway directly under the storage room, as in Japanese Utility Model Application Publication No. 59-139166, the heat exchange of the condenser becomes worse because the warm air from the machine room is sent into the narrow passageway. Moreover, in addition to the warm air, the radiant heat from the condenser heats the lower surface of the storage chamber, resulting in an additional problem of increased refrigeration load. In addition, the warm air that has been cooled by the compressor and condenser is exhausted outside (inside the restaurant) at a high temperature, so the warm air may hit customers sitting at the counter or cause damage to the sushi placed on the counter. There were also problems such as the temperature rising due to warm air.

In order to solve the above-mentioned problems, the present invention provides a means for solving the above-mentioned problems. and a passage opening on the minus side of the machine room side area (33B), and an opening formed in the unit base part (21) which is the lower surface of the machine room and communicating the passage and the machine room, and a compressor. A refrigerated showcase (1) comprising a condenser [F]υ and a blower fan, which are arranged in the machine room together with the window, and a part of which is installed in the respective passages through the openings. I will provide a.

(f) Example The present invention will be described in detail below based on the drawings.

(1) is a horizontally long refrigerated showcase such as a flat case, and the showcase has a horizontally long board (2) placed on the bottom.
, a horizontally long glass plate (3) made of curved glass and placed on the front and rear half of the top surface, a horizontally long upper frame (4) placed on the second half of the top surface, and mutual glass plates placed on both left and right sides, respectively. The space surrounded by the side plate (5) + 61, which is symmetrical to A partition plate (9) that defines the storage room (7) on the left side (in the example) and the machine room (8) on the other side (the right side in the example), and a partition plate (9) arranged on the back surface corresponding to the storage room (7). The main body is composed of two glass doors QOI (11) that slide in the left and right directions, and an m (13) placed on the back side corresponding to the machine room (8).

As shown in FIGS. 1 and 2, the substrate (2) is a metal lower plate 03 having a width approximately equal to the width of the main body, that is, a length extending from the storage chamber (7) to the machine room (8). The metal upper plate (141) is located above the lower plate at a distance and serves as the bottom plate and the receiving plate of the storage chamber (7) and has the same shape and is symmetrical to the main body. A U-shaped metal member that connects the front and rear resin members 09a■ with a width approximately equal to the width and the upper and lower plates αaαJ, and extends in the front and rear direction to attach one side plate (5) or partition plate (9). Spacer (17)
α mark, the α value of the U-shaped metal mounting member extending in the front-rear direction for attaching the other side plate (6), and the upper and lower screen plates (
141α3, and a heat insulating material 4 such as styrene foam or hard polyurethane. The lower plate 0 serves as the lower surface of the machine room (8) and connects the machine room (8) and a passage described below to a part of the so-called unit base section (CI) where the compressor, condenser, etc. described later are installed. It forms an opening. In addition, the upper plate side has a recess (c) for storing a cooler to be described later, an annular part C4 around this recess, and an upper part (c) that stands up from both the front and rear sides of this annular part. ). Moreover, the spacer aηα group and the mounting member α value have the same shape, and when the storage chamber (sword is formed on the right side 1 machine room (8) is formed on the left side, the spacer αη is the mounting member, The mounting member a9 serves as a spacer.Also.

Both the front and rear members 09αe have an elongated dovetail groove (29) that opens a part of the lower surface directly below the groove, and a metal dovetail groove on the inside. The reinforcing plate 0υC321 is provided in close contact with each other, and the space between them is the storage room side area (33A) and the machine room side area (33B).
The front and rear legs (2) C35+ are formed with a passageway (c) opening on one side of both areas. The lower end of the glass plate (3) is fitted into the groove (5) of the front member a9 via a U-shaped soft packing (G), and the slide rail Gη and this slide rail are fitted into the groove (2) of the rear member le. The lower end of the glass door +101 (111) and the lower end of the lid az that slide into contact with the glass door +101 (111) are fitted into the dovetail groove ■ω of the front and rear members α9ae.
C) (C) is inserted.

Further, the glass plate (3) is made of a transparent glass plate material with a thickness of 5 mm, for example, and has a second plate on the inner surface of the part corresponding to the machine room (8).
As shown in Figures to Figure 3, after coating with opaque ceramic colored in an arbitrary color, the part corresponding to the storage chamber (7) is made into a transparent part (38A), and the part corresponding to the machine room (8) is made into an opaque part. (38B) and then subjected to a curving process.

The upper frame (4) is made of extrusion moldable resin and has a width that is approximately the same as the width of the main body, that is, a length extending from the storage chamber (7) to the machine room (8). As shown in FIG. 5, there is a placing part (40) formed along the front end of the glass plate (3) on which the rearward upper end of the glass plate (3) is placed via a soft packing pad, and a placing part (40) having an open upper surface at the rear of this placing part. There is an accommodation groove (4?J) in which the elongated resin restraining member (4υ), which also serves as a decorative decoration and which presses the upper end of the glass plate (3) via a packing bar, is received, and a lower surface behind this accommodation groove. A storage groove (43) formed by opening the storage groove (43), which is formed by opening and which stores an elongated metal reinforcing material (43) which also serves as a support member for suspending a cooler, which will be described later, and forms a heat insulating space 04 between the reinforcing material and the reinforcing material (43).
c), a double wall part (4?) which is curved to the rear of this storage groove and defines a heat insulating space, and a double wall part (4?) which is opened downward along the lower edge of this double wall part. Hey, the rear member c
It is provided with a groove part (410 (4119) facing the groove part of IF3 and into which the glass door αQ01) and the upper end of the lid side are fitted.

The side plates (5116) are made of resin, and as shown in FIGS. 2 and 3, they form trapezoidal windows (496G) of the same shape and face the storage chamber (7). A transparent plate 511 made of glass is provided on the window 0 value of the side plate (5), and a metal frame member is suddenly supported on the window 6C of the side plate (6) facing the machine room (8). A mesh filter 69 is provided.This side plate (5+<61
can be used in common with each other, having a fitting 54) for fitting both ends of the glass plate (3) on the opposing upper edges;
When the storage chamber (7) is formed on the right side and the machine room (8) is formed on the left side, the side plate (5) is provided on the right side and the side plate (6) is provided on the left side.

In order to have the same shape as the mesh filter (to be described later) provided on the lid Q21, the mesh filter 5z, which is attached to the window bar, is used as an auxiliary member such as lc, Th, or a frame member 5z.

The partition plate (9) is made of a heat insulating material, such as resin, and has recesses l57 on both left and right sides for storing the heat insulating plate (to) as shown in FIGS. 1, 5 and 6. □□□, and a piping path 5■ω is formed at appropriate locations on the upper and lower edges, and furthermore, a rear opening defined by the upper frame (4) and the rear member is provided at the rear edge. Left and right, i.e. storage room (7)
A groove part (toward) that partitions the side and the machine room (8) side and faces each other.
, (4B (48)) is provided with a rear extension section υ interposed between the partition plate (9) and the glass plate (3). ]2 is provided.

When the machine room (8) is located on the left side of the main body, the heat insulating plate (2) is housed in the recess 57).

In addition, the front lid a2 is made of a suitable material such as a metal plate or a resin plate, and is removably fitted into the groove part @ (4Q) facing oppositely to the glass 8001 (111) as described above, and has a rear opening 6η. As shown in Fig. 6, this lid (17J) is provided with a rectangular window 1 that communicates the machine room (8) with the outside (inside the store), and this window has the Metsushi filter seal. A mesh filter cover of the same size is fitted into this lid a2.In addition to the window [3] mentioned above,
As shown in FIG. 3, in order to inspect the earth leakage breaker I9 from the outside without opening the lid (12), an inspection window is provided that exposes a part of the earth leakage breaker to the outside.

The σ■συ are coolers consisting of evaporator tubes bent in a meandering manner, and as shown in Fig. 4, they are each placed in the storage chamber (7), and among these, the cooler placed above is It is fixed in place by a resin clamp σ2 suspended from the reinforcing member α3, and the cooler συ placed below is held in place by a resin clamp υ3 attached to the upper plate I. The food to be cooled, such as sushi, stored in the storage chamber (7) is cooled to an appropriate temperature by the cooling action of both of them.

σa is a connecting pipe that is a part of both cooling pipes σO)συ,
Similar to the cooling effect of both cooling windings, frost formation occurs in the storage chamber (which cools the sword and the communication pipe 64) due to the cooling effect. Confirmation can be performed from the outside by means of a connecting pipe σa extending vertically within the storage chamber (7). (C) is a drainboard formed with a large number of ventilation passages 6e, which is placed in the recess @ of the substrate (2) to cover the cooler σD, and the ventilation passages σQ
through the cooler (71) to promote convection of cold air that has been heat exchanged with the cooler (71).

Shin is a refrigerant compressor, @υ is a plate fin type condenser, and ri is an axial flow fan. These refrigeration parts, which together with συ on both cooler sides constitute the refrigeration cycle, are located in the machine room (8).
It is attached to the unit base part c2I) which is the bottom surface of the unit. With this installation, a part of the condenser @D and the blower fan, that is, the lower part, passes through the opening @ and is installed in the machine room side area (33B) of the passageway (c). (c) is a fan case that also serves as both the left and right tube plates of the condenser, and its lower part is installed in the passage (g) through an opening (sha), similar to the condenser [F]υ and the blower fan. There is. This fan case □□□ is such that the inside of the machine room (8) is a low pressure area when the blower fan &5 is operated, and the passage (c) directly under the power from the condenser 3υ to the storage room is a high pressure area. It forms a ventilation hole for the phantom propeller (82A).

The blower fans (8 are operated together with the compressor), and as they operate, outside air is passed through both filters into the machine room (8) as shown by the arrows in Figures 1 and 6. At the same time, outside air is also sucked into the passage from one end (right end) of the first passage (c).The outside air sucked into the machine room (8) first rises as the compressor is cooled. The air is heated to become warm air, which is then heat exchanged with the hot gas passing through the condenser [F]υ to further raise the temperature, and then flows through the opening (c) into the passageway (c), where it flows into the storage room side area of this passageway. Exhaust from the other end (left end) of (33A).

On the other hand, the outside air sucked into the machine room side area (33B) of the passageway (to) unit base part c! After heat is exchanged at the lower part of the condenser [F]υ that protrudes downward from the condenser 9, the above-mentioned warm air that has passed through the opening ■ joins with the storage room side area of the passage (c)
33A) and is exhausted outside (inside the store). That is, ventilation cooling of the condenser (81) is performed by both the outside air drawn into the machine room (8) and the outside air drawn into the machine room side area (33B) of the passageway (c).

Therefore, according to this configuration, a part of the condenser (81) and the blower fan arranged in the machine room (8) are exposed to the machine room side area (33B) of the passage (to) through the opening device. Therefore, in addition to the outside air whose temperature has risen by being sucked into the machine room (8) and cooling the compressor g30, the condenser member υ is cooled with the lower temperature outside air that is sucked into the machine room side area (33B). Moreover, even if the volume of the machine room (8) is small, it is possible to arrange a condenser 3υ with sufficient heat exchange capacity. In addition to being able to lower the temperature, the machine room side area (33
Even though the outside air from B) is heat exchanged in the condenser [F] υ, its temperature is lower than the outside air that has cooled both the compressor and the condenser υ, so by combining these two outside air, storage The temperature of the outside air exhausted from the room side area (33A) can be lowered.

(G) Effects of the Invention According to the present invention described above, the effects listed below are produced.

■ The condenser is cooled not only by the outside air that has been heated up by cooling the compressor, but also by the lower temperature outside air that is directly introduced into the machine room side of the passage, so the heat exchange temperature can be lowered. As a result, heat exchange efficiency is improved and the required refrigerating capacity can be obtained.

■ Even though the outside air introduced into the machine room side area of the passageway undergoes heat exchange in the condenser, its temperature is lower than the outside air that has cooled both the compressor and the condenser. The temperature of the outside air exhausted from the room side area to the outside can be lowered, and as a result, the conditions for exhaust air blowing into the store can be improved.

■ By creating an opening in the unit base, part of the condenser and blower fan can be seen into the passageway, even if there are restrictions on the size of the machine room.

A condenser with the required heat exchange capacity can be easily arranged.

[Brief explanation of the drawing]

The drawings show an embodiment of the refrigerated sifter case of the present invention, even if it collapses.
gt diagram is a sectional view taken along line A-A in Figure 2, Figure 2 is an overall front perspective view of the refrigerated showcase, Figure 3 is an overall rear perspective view of the same, and Figure 4 is an overall front perspective view of the refrigerated showcase.
The drawings are a sectional view taken along the line BB in FIG. 2, FIG. 5 is a sectional view taken along the line CC in FIG. 2, and FIG. 6 is a sectional view taken along the line CC in FIG. (7)...Storage room, (8)...Storage room, Qυ・
...Unit base part, (221...opening, Q.
...Aisle, (33A)...-Storage room side area, (3
3B)...Mechanical room side area, Kanji...Compressor, Part D
...Condenser, @2...Blower fan.

Claims (1)

[Claims] 1. It is formed across the bottom of both the storage room and the machine room,
and a passageway opening on one side of the storage room side area and the machine room side area, an opening formed in the unit base part serving as the lower surface of the machine room and communicating the passageway and the machine room, and a passageway opening on one side of the storage room side area and the machine room side area; A refrigerated showcase comprising a condenser and a blower fan, which are arranged in a room and a part of which is provided in the passage through the opening.