JP3325223B2 - Showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a showcase provided with a cooling device such as a condenser and a compressor, and stores and cools goods in a cool room, and more particularly to a structure of a machine room.

[0002]

2. Description of the Related Art Conventionally, as this type of showcase,
One described in Japanese Utility Model Laid-Open No. 2-103686 is known. This showcase will be described with reference to FIG. FIG. 5 is a front sectional view of a machine room relating to a conventional showcase.

This showcase has a box-shaped showcase main body 2 in which an insulated room 3 is formed in an upper part, and a machine room 4 is formed in a lower part, and a condenser 10, a compressor 12 and the like are installed in the machine room 4. are doing. The cold room 3 and the machine room 4 are rectangular in cross section. The condenser 9, the blower 11, and the compressor 12 are installed on the floor 9 of the machine room 4 in order from the left side. A drainage tray 7 that receives drainage from the cold storage room 3 is disposed below the compressor 9 and below the floor 9 of the machine room 4. Further, on the floor 9 between the compressor 12 and the blower 11, a shielding plate 20 for branching the air blow by the blower 11 up and down is installed. The shielding plate 20 is a plate-like member that stands vertically from the floor 9 of the machine room 4, and is formed such that its upper end is located at a height near the center of the blower 11. Further, a first ventilation hole 9a is opened between the shielding plate 20 and the blower 11 on the floor 9 of the machine room 4, and
On the right side of the compressor 12, a second ventilation hole 9b is opened.
Further, the suction port 5 and the exhaust port 6 are provided on the left and right side walls of the machine room 4.
Is open.

In this showcase, by driving the blower 11, the outside air is taken in from the suction port 5 to cool the condenser 10, and the warm air exchanged in the condenser 10 is blown rightward by the blower 11. . The blown air is branched up and down by a shield plate 20, one is blown to the compressor 12 to cool the compressor 12, and the other is guided by the shield plate 20 and drains through the first ventilation hole 9a. The air is blown toward the surface 7 and promotes evaporation of the wastewater received by the drainage dish 7. The air that has passed through the surface of the drain pan 7 is
b flows into the machine room 4 again, merges with the air that has cooled the compressor 12, and is discharged from the exhaust port 6. In this way, the condenser 10 and the compressor 12 are cooled, and the evaporation of the wastewater received by the drainage tray 7 is promoted.

[0005]

However, in this showcase, the air blown by the blower 11 is vertically split by the shielding plate 20, and the branched air is separated by the shielding plate 20.
In this case, a sufficient amount of air cannot be obtained, and the drainage tray 7 cannot be sufficiently evaporated.
Further, the air blown by the blower 11 is branched up and down by the shielding plate 20 and, furthermore, since the compressor 12 is installed leeward of the shielding plate 20, the lower side of the compressor 12 may not be sufficiently cooled. there were. In addition, the warm air blown by the blower 11 circulates to the windward side of the blower 11 and circulates, thereby cooling the condenser 10 and the compressor 12 and cooling the drainage tray 7.
In some cases, evaporation was not sufficiently promoted. For this reason, there is a problem that the cooling efficiency of the cooling device including the condenser 10 and the like is reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a cooling device including a compressor, a condenser, and the like, which has a high evaporation efficiency of drainage received in a drainage dish. To provide a showcase with high cooling efficiency.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a cold storage chamber for containing and keeping cool a product, and a blower for cooling a condenser, a compressor and a condenser. In a showcase with a machine room
A wind direction plate for guiding the wind from the condenser downward, and the compressor are arranged side by side on the lee side of the condenser, and a cold insulation is provided at a lower portion of the machine room floor where the wind direction plate and the compressor are installed. A drain plate for receiving drainage from the room is installed, a first ventilation hole is opened in the machine room floor on the windward side with respect to the wind direction plate, and the machine room floor portion on the leeward side with respect to the wind direction plate is provided. Proposes a device characterized by having a second vent hole opened.

According to the present invention, the airflow direction plate and the compressor are arranged side by side on the lee of the condenser, so that the air heat exchanged by the condenser is branched in the left-right direction, and the air flows to the compressor and the airflow direction plate, respectively. It is blown. The air blown to the wind direction plate is guided downward, guided to the drainage dish from the first ventilation hole, and promotes evaporation of the wastewater received by the drainage dish. The air that has passed through the drainage dish flows into the machine room again through the second ventilation hole. The compressor is cooled by blowing air from the condenser.

[0009] As an example of a preferred embodiment of the present invention, in the invention of claim 2, in the showcase of claim 1,
The wind direction plate has a cut-off portion for cutting off the flow of air from the leeward side to the windward side with respect to the wind direction plate.

According to the present invention, since the wind direction plate has the shut-off portion, the air exchanged by the condenser and warmed does not circulate in the machine room, and the cooling efficiency of the condenser and the compressor is reduced. Can be kept high.

According to another preferred embodiment of the present invention, in the present invention according to the third aspect, in the showcase according to any one of the first to second aspects, the wind direction plate has an upper end portion of a blower. The one characterized by being installed so as to be arranged at the same or higher position as the upper end portion is cited.

According to the present invention, since the height of the wind direction plate is set to be equal to or higher than that of the blower, the air guided by the wind direction plate and guided to the surface of the drain plate has a large air volume and a high wind speed. Thereby, the evaporation efficiency of the wastewater received in the drainage dish is improved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A showcase according to an embodiment of the present invention will be described with reference to FIGS. FIG.
Is an external view of the showcase, FIG. 2 is a front sectional view of the machine room,
FIG. 3 is a plan sectional view of a machine room, and FIG. 4 is a perspective view of a wind direction plate. In the drawings, the same members corresponding to FIG. 5 are denoted by the same reference numerals.

As shown in FIG. 1, the showcase 1 has a box-shaped showcase main body 2 having a front opening, a cold storage room 3 formed at an upper portion, and a machine room 4 formed at a lower portion. The showcase main body 2 is a rectangular box-shaped one having a horizontally long cross section whose longitudinal direction is the left-right direction. The showcase main body 2 is closed by a sliding door 3a that is provided with a glass plate on the front side of the cold storage chamber 3 and slides open and close to the left and right. Is surrounded by a glass plate 2b interposed therebetween. Further, a lower side wall 2c on one of the left and right sides (the left side in the present embodiment) of the showcase main body 2 opens an inlet 5 communicating with the machine room 4, and the other lower side wall on the left and right sides (the right side in the present embodiment). 2c
Has an exhaust port 6 communicating with the machine room 4. Further, legs 2d are installed at the lower four corners of the showcase main body 2, and a predetermined gap is provided between the bottom surface of the showcase main body 2 and the installation floor. Further, a drainage tray 7 for receiving drainage such as defrost water (drain water) between the installation floor and the bottom surface of the showcase body 2, that is, a lower part of the floor of the machine room 4, is detachable. Are located. The glass plate 2b may be constituted by a heat insulating wall, and the legs 2d may be casters.

The machine room 4 is, as shown in FIGS. 2 and 3,
A heat insulating partition plate 8 separates the cool room 3 from each other, and a condenser 10, a blower 11, a compressor 12, and a wind direction plate 13 are installed on a floor 9. The condenser 10 and the compressor 12 are devices constituting a cooling device for cooling the cold storage chamber 3. The condenser 10 and the compressor 12 are connected to an evaporator or an expansion valve (not shown) and circulate a refrigerant to form a refrigeration cycle. Cool 3 The machine room 4 contains the condenser 10
An air guide plate 14 made of a plate-shaped member having an L-shaped cross section is provided to ensure the flow of air from the air to the blower 11. Further, a drain hose 15 for guiding drainage such as defrost water to the drain tray 7 is arranged in the machine room 4 from the partition plate 8 to the floor 9.

The arrangement of each device installed on the floor 9 of the machine room 4 is as follows. That is, the condenser 10 and the blower 11 are installed in order from the suction port 5 opening to the side wall 2 c of the showcase body 2 toward the exhaust port 6, and the compressor 12 is connected to the exhaust port 6 side of the blower 11. The wind direction plates 13 are arranged side by side so as to be arranged in the front-rear direction. Here, the blowing direction of the blower 11 is set to be from the suction port 5 to the exhaust port 6. That is, the air blower 11 is installed so that the air is directly blown to both the compressor 12 and the wind direction plate 13 which are arranged in the lee of the blower 11 by driving the blower 11. Further, the compressor 12 and the wind direction plate 13 are installed so as to be located above the drainage tray 7 described above.

As shown in FIG. 4, the wind direction plate 13 is formed by bending a plate-like member. The wind direction plate 13 stands upright in parallel with the side wall 2c of the showcase main body 2, and has an upper part of the blower 1
It is composed of a wind direction plate main portion 13a bent obliquely in one direction, and a blocking portion 13b bent at a right angle to the blower 11 side with respect to the wind direction plate main portion 13a. The height of the wind direction plate 13 is
It is set slightly higher than 1. In addition, this wind direction board 1
Reference numeral 3 denotes a floor surface 9 of the machine room 4, which is installed behind the compressor 12, and is installed such that the wind direction plate main portion 13a is arranged near the center of the compressor 12 behind.

As shown in FIGS. 2 and 3, the floor 9 of the machine room 4 has a first ventilation hole 9a communicating with the
Have a plurality of openings 9b. The first ventilation hole 9 a is opened between the air flow direction plate 13 and the compressor 12 and the blower 11 and on the floor 9 above the drainage dish 7. That is, the first ventilation hole 9a is provided between the wind direction plate 13 and the compressor 12.
Is opened on the floor 9 on the windward side. Further, the second ventilation hole 9 b is opened on the floor 9 above the drainage dish 7 on the opposite side to the blower 11 with respect to the wind direction plate 13. That is, the second ventilation hole 9 b is opened on the floor 9 on the leeward side with respect to the wind direction plate 13 and the compressor 12. Also, the condenser 10
An intake port 5 is formed in the lower floor 9 of the air conditioner.

The flow of air in the machine room 4 of the showcase 1 is as follows. When the blower 11 is driven to start blowing air from the suction port 5 to the exhaust port 6, outside air is drawn in from the suction port 5 opening on the side wall 2 c of the showcase main body 2 and the floor 9 of the machine room 4, and is discharged by the condenser 10. Heat exchange takes place. That is, the condenser 10 is cooled here. Warm air resulting from the heat exchange is energized by the blower 11 and is blown toward the exhaust port 6. The warm air blown from the blower 11 is blown to both the wind direction plate 13 and the compressor 12 arranged side by side on the floor 9. That is, the warm air blown from the blower 11 is branched right and left, and the wind direction plate 13 and the compressor 1 are respectively separated.
It is blown to 2. The warm air blown to the wind direction plate 13 is guided to the wind direction plate main portion 13a and guided downward, and the first ventilation holes 9 are formed.
The liquid is sprayed onto the drainage tray 7 through a (see the dotted arrow in the figure). On the other hand, the warm air blown to the compressor 12 passes around the compressor 12 to cool the compressor 12 and flows toward the exhaust port 6. A part of the warm air blown to the compressor 12 is blown to the drain tray 7 through the first ventilation hole 9a (see a dotted arrow in the figure). The warm air blown to the drain tray 7 promotes the evaporation of the waste water received in the drain tray 7, and flows into the machine room 4 again through the second ventilation hole 9b (see the dashed-dotted arrow in the figure). . The air that has flowed into the machine room 4 through the second ventilation hole 9b is
And cooled air are discharged from the exhaust port 6 to the outside of the machine room 4. At this time, the air that has flowed into the machine room 4 through the second ventilation hole 9 b is not blocked by the blocking portion 13 b of the wind direction plate 13 and does not flow into the windward side of the blower 11. That is, the cut-off portion 13b of the wind direction plate 13 prevents air from circulating in the machine room 4.

As described above, according to the showcase according to the present embodiment, the air heat exchanged by the condenser 10 is branched in the left-right direction, and the air is exchanged between the compressor 12 and the wind direction plate 1.
3, the compressor 12 can be sufficiently cooled. Further, since the wind direction plate 13 is formed higher than the blower 11, the air blown to the drain tray 7 through the first ventilation holes 9a has a large air volume and a high wind speed. Thereby, sufficient evaporation of the wastewater received by the drainage tray 7 can be promoted. Furthermore, since the air circulation in the machine room 4 is prevented by the blocking portion 13b of the wind direction plate 13, the cooling efficiency of the condenser 10 and the compressor 12 is improved. This allows
The cooling efficiency of the showcase is also improved.

In the present embodiment, a plurality of first ventilation holes 9a are opened in the floor 9 on the windward side of the wind direction plate 13 and the compressor 12, but the first flow holes 9a are formed only on the windward side of the wind direction plate 13. Stoma 9
a may be opened.

Further, in the present embodiment, the suction port 5 is opened on one of the right and left side walls 2c of the showcase main body 2 and the exhaust port 6 is opened on the other side wall 2c. An opening may be provided in the front wall and the rear wall. For example, in addition to the intake port 5 and the exhaust port 6 opened in the present embodiment, the intake port 5 may be opened on the front wall and the exhaust port 6 may be opened on the rear wall. Further, for example, the inlet 5 and the outlet 6 are opened on the front wall and the rear wall without opening the inlet 5 or the outlet 6 on the side wall 2 c, and air flows in the machine room 4 in the front-rear direction. You may do so.

[0023]

As described in detail above, according to the first aspect of the present invention, the air heat exchanged by the condenser branches right and left and is sent to the compressor and the wind direction plate, respectively.
The compressor can be sufficiently cooled. According to the second aspect of the present invention, since air is not circulated in the machine room due to the cutoff portion of the wind direction plate, the cooling efficiency of the evaporator and the compressor is improved. Thereby, the cooling efficiency of the showcase is improved with a simple configuration, and the burden of each device due to heat is reduced. Further, according to the third aspect of the present invention, since the wind direction plate is formed higher than the blower, the air blown to the drainage dish through the first ventilation hole has a large air volume and a high wind speed. Thereby, sufficient evaporation of the wastewater received by the drainage dish can be promoted.

[Brief description of the drawings]

FIG. 1 is an external view of a showcase.

FIG. 2 is a front sectional view of a machine room.

FIG. 3 is a plan sectional view of a machine room.

FIG. 4 is a perspective view of a wind direction plate.

FIG. 5 is a front sectional view of a machine room in a conventional showcase.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Showcase, 2 ... Showcase main body, 3 ... Cooling room, 4 ... Machine room, 5 ... Suction port, 6 ... Exhaust port, 7 ... Drain pan, 9 ... Floor, 9a ... First ventilation hole, 9b ... Second vent hole, 10: condenser, 11: blower, 12: compressor, 13
... wind direction board, 13a ... wind direction board main part, 13b ... cutoff part, 15
… Drain hose

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-96569 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) F25D 19/00 560

Claims (3)

(57) [Claims] 1. A showcase comprising a cool room for storing and keeping goods cool, and a machine room in which a blower for cooling a condenser, a compressor and a condenser is installed. A drainage plate for receiving the drainage from the cold storage room at the lower part of the machine room floor where the wind direction plate and the compressor are installed. A plate is installed, a first ventilation hole is opened in the machine room floor on the windward side with respect to the wind direction plate, and a second ventilation hole is formed in the machine room floor portion on the lee side with respect to the wind direction plate. A showcase characterized by being open. 2. The showcase according to claim 1, wherein the wind direction plate has a blocking portion that blocks air flow from a leeward side to a windward side with respect to the wind direction plate. 3. The show according to claim 1, wherein the wind direction plate is installed such that an upper end thereof is located at the same or higher position as an upper end of the blower. Case.