JPH07318224A - Cooling storage chamber - Google Patents

Abstract

PURPOSE:To prevent the short-circuit of cooling airflow with simple constitution, in a cooling storage chamber having a machine room in the upper part of the main body of the storage chamber. CONSTITUTION:A partitioning plate 10 is provided in the front half of a machine room 3, provided in the upper part of the main body 2 of a refrigerator, to form a suction duct 11 and an exhaust duct 12 in up-and-down two stages. A compressor 5 and a condenser 6, which constitute a refrigerating cycle, and a fan 13 for supplying cooling air to the compressor 5 and the condenser 6 are provided in the machine room 3. A control box is provided in front of the fan 13. A front panel 17, having an air suction port 18, is provided in the fore opening of the suction duct 11 so as to be openable while supporting the upper part of a front panel 17, while an exhaust port 20 at the fore end of the exhaust duct 12, is provided at a position retreated from the air suction port 18 of the front panel 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling storehouse having a machine room above a storehouse body such as a large refrigerator.

[0002]

2. Description of the Related Art As a cooling storage of this type, for example, as disclosed in Japanese Patent Application Laid-Open No. 2-118387, there is a refrigerator in which a machine room is provided above a storage main body having a storage room. In this type of refrigerator, components such as a condenser (compressor) and a compressor (compressor) of a refrigeration cycle, a fan motor for cooling the refrigeration cycle, and a blower including blower blades are arranged in a machine room. . With this configuration, when the blower is driven, the outside air is sucked in through the intake port on the front of the machine room, the cooling air is passed through the condenser portion to cool the condenser, and is further used for cooling the compressor. After that, the heated air is exhausted to the outside through an exhaust port formed in the ceiling on the rear side of the machine room.

[0003]

However, when the exhaust port is formed in the ceiling portion of the machine room as described above, there is a problem that dust and dirt easily fall into the machine room from the exhaust port and accumulate. And small animals may enter the machine room. In addition, a relatively large space for exhaust heat has to be secured in the upper part of the refrigerator, which requires a large installation space in the height direction. Therefore, it is also considered that the front surface of the machine room is divided into an intake side and an exhaust side to perform both intake and exhaust in the front surface of the machine room. However, in this configuration, since the intake port and the exhaust port are provided side by side on the front surface of the machine room, there arises a disadvantage that a so-called short circuit occurs in which the high temperature air exhausted from the exhaust port is sucked again from the intake port.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a machine room having an inlet and an outlet for cooling air in the upper part of a storage main body.
It is to provide a cooling storage that can prevent a short circuit with a simple structure.

[0005]

In order to achieve the above-mentioned object, the cooling storage of the present invention is provided with a machine room at the upper part of the storage main body, and the components of the refrigeration cycle and cooling air are supplied to the machine room. In the one provided with a blower for supplying, the front part of the machine room is partitioned and formed by a partition plate into an exhaust duct and an intake duct, and an exhaust port located at the front end of the exhaust duct for discharging air is provided at the front end of the intake duct. The present invention is characterized in that it is provided at a position behind the intake port for sucking air.

Further, in this case, the intake duct and the exhaust duct are formed so as to be vertically arranged, and a front panel having an intake port is opened and closed at the front end opening of the intake duct by rotatably supporting the upper part thereof. It may be possible (the invention of claim 2).

[0007]

According to the cooling storage of the first aspect, when the blower in the machine room is driven, the outside air is sucked into the intake duct from the front of the machine room through the intake port to cool the components of the refrigeration cycle in the machine room. . Then, it is discharged to the outside through the exhaust duct from the exhaust port on the front surface of the machine room. At this time, since the exhaust port located at the front end of the exhaust duct is located behind the intake port of the front panel, the hot air discharged from the exhaust port flows upward and moves away from the intake port. .

In addition to the structure of claim 1, according to the cooling storage of claim 2 in which the front panel is provided in the front end opening of the intake duct so as to be openable and closable, the user can operate, for example, in a machine room. Even when the front panel is largely opened to operate the portion, it is possible to avoid the upper end of the front panel from interfering with the exhaust port portion of the exhaust duct.

[0009]

As described above, according to the cooling storage of the first aspect, since the exhaust port of the exhaust duct is located rearward of the intake port of the intake duct, it is discharged from the exhaust port. It is possible to reliably prevent a so-called short circuit in which high-temperature air is sucked again from the intake port.

Further, in the cooling storage according to the second aspect, since the front panel and the exhaust port of the exhaust duct can be prevented from interfering with each other, the user can greatly open the front panel to improve operability. Can be achieved.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a commercial refrigerator will be described below with reference to the drawings. First, Fig. 1
Shows the appearance of the refrigerator 1 according to the present embodiment, and the refrigerator 1 is configured to have a machine room 3 on the upper part of a refrigerator body 2 formed of a heat insulating box. The refrigerator main body 2 is configured to include a storage chamber in which foods and the like are stored, and its front opening is opened and closed by two upper and lower heat insulating doors 4 and 4.

A known refrigeration cycle is incorporated in the refrigerator 1. As shown in part in FIGS. 2 and 3, the refrigeration cycle is configured by connecting a compressor (compressor) 5, a condenser (condenser) 6, an evaporator (evaporator), etc. in a closed loop with a refrigerant pipe. Has been done. Among them, the compressor 5 and the condenser 6 are arranged in the machine room 3, and the evaporator is arranged in the refrigerator body 2 though not shown. As shown in FIGS. 2 and 3, the machine room 3 includes left and right side plates 7 and 7 and a back plate 8 in which both side plates and a back plate of the refrigerator main body 2 are extended upward, and a top surface that covers the upper surface. It is configured in the shape of a rectangular box whose front surface is open from the plate 9. Then, as shown in FIG. 3, a partition plate 10 is horizontally provided at an upper end portion in a substantially first half portion of the machine room 3.
As a result, the intake duct 11 is formed in the lower part and the exhaust duct 12 is formed in the upper part in almost the first half of the machine room 3.

In the machine room 3, the compressor 5
And a fan motor 13a for cooling the condenser 6 and the like
Also, a blower 13 including a blower blade 13b attached to the rotation shaft thereof is provided. In this case, the respective parts are unitized by being mounted on a rectangular mounting base 14 mounted on the floor of the machine room 3, and the condenser 6, the blower 13, and the compressor 5 are arranged in order from the front side. Has been done. Here, the condenser 6 is located at the rear end portion of the intake duct 11, and partition walls 15 for partitioning the inside of the intake duct 11 into front and rear are provided on both left and right sides thereof. In detail, the partition wall 15 is composed of a plurality of panels in consideration of removal, and all the gaps between the panels, the side plates 7, and the condenser 6 are sealed with a sealing tape (not shown). Blocked to prevent wind leaks and chatter.
The blower 13 (fan motor 13a) is mounted on a mounting base 14 via a motor mounting plate 16, and a fan cover 13c for covering the blower blades 13b is provided behind the condenser 6 to mount the mounting base. It is fixed on 14. In FIG. 2, reference numeral 21 is an electrical component box that accommodates a compressor 5 and a relay for controlling the disconnection of the fan motor 16a.

A front panel 17 is openably and closably attached to the front opening of the intake duct 11. The front panel 17 has a rectangular plate shape whose outer peripheral edge portion is bent rearward at a substantially right angle and has a slight thickness in the front and rear, and as shown in FIG. The intake port 18 is formed. As shown in FIGS. 4 and 5, the front panel 17 has hook portions 17a on the left and right sides of the upper end of the back surface, and the hook portions 17a are provided at the front end portion of the intake duct 11 as a support shaft portion. By being locked to the shaft, it can be rotated about its supporting shaft. At this time, the front right end of the machine room 3 (front panel 1
7), a control box 19 having a compartment temperature setting switch, a forced defrost switch, etc.
Is provided. In the normal state, the front panel 17 is provided with the intake duct 11 as shown in FIGS.
When the user wants to operate the control box 19 when the front opening is closed, as shown in FIG. 5, the front panel 17 is opened upward to the front side.

An exhaust port 20 is provided at the front end of the exhaust duct 12, and as shown in FIGS. 3 to 5, this exhaust port 20 (the front end edge of the top plate 9). Is slightly rearward of the front panel 17 (intake port 18). Also, as shown in FIG.
The front end portion (exhaust port 20) of the exhaust duct 12 is positioned so as not to interfere with the front panel 17 when the front panel 17 is rotated upward and upward to a substantially horizontal position. Next, the operation of this embodiment will be described. In the operation state of the refrigeration cycle, the compressor 5 is driven, the refrigerant circulates in the refrigeration cycle, and the cool air from the evaporator is supplied to the storage chamber. At this time, the blower 13 (fan motor 13
a) is also driven, the outside air is sucked in through the intake port 18 of the front panel 17, and the cooling air from the intake duct 11 is passed through the condenser 6
The condenser 6 is cooled by passing through the portion. The cooling air used for cooling the condenser 6 is further blown toward the compressor 5, cools the compressor 5, and then is discharged to the outside from the exhaust port 20 through the exhaust duct 12.

At this time, in this embodiment, intake and exhaust are performed on the front side of the machine room 3, and the top surface of the machine room 3 is covered with the top plate 9, so that the exhaust port is provided at the ceiling of the machine room. Compared with the conventional one, it is possible to effectively prevent invasion of dust, dust, insects, etc. into the machine room 3, and
The installation space does not increase in the height direction. Even if the intake port 18 and the exhaust port 20 are both provided in the front part of the machine room 3, the exhaust port 20 is provided at a position retracted from the intake port 18 of the front panel 17, so that the exhaust gas is exhausted. The hot air discharged from the mouth 20 flows upward as it is and leaves the intake port 18,
The hot air exhausted from the exhaust port 20 is reinjected into the intake port 18 again.
It is possible to reliably prevent so-called short circuits that are sucked in from.

Further, as described above, when the user wants to operate the control box 19, as shown in FIG. 5, the front panel 17 is opened upward to the front side, but the front end of the exhaust duct 12 is opened. Since the portion (exhaust port 20) is located so as not to interfere even when the front panel 17 is rotated to the horizontal position, the user can open the front panel 17 greatly and perform the operation. The property becomes extremely good. Thus, according to this embodiment, the intake port 1
8 and the exhaust port 20 are both provided in the front part of the machine room 3, the exhaust port 20 at the front end of the exhaust duct 12
Is provided behind the intake port 18 of the front panel 17, a so-called short circuit can be reliably prevented, and efficient cooling can be achieved.

Further, particularly in this embodiment, the front panel 17
Is provided so that its upper end is pivotally supported by the front opening of the intake duct 11, and the front end of the exhaust duct 12 is rotated upwards to the front side to a substantially horizontal position. Since the front panel 17 is provided so as not to interfere with the front panel 17, the user can use the machine room 3 for example.
It is also possible to obtain the effect that the operability when operating the control box 19 provided therein can be improved. The present invention is not limited to the above-described embodiments, and for example, the front panel does not necessarily have to be pivotally supported at the upper end, and has a large size having a plurality of refrigeration units (refrigeration cycles) in the machine room. The present invention can also be applied to a refrigerator, etc., and can be appropriately modified and implemented without departing from the scope of the invention.

[Brief description of drawings]

FIG. 1 is a front view of a refrigerator showing an embodiment of the present invention.

[Figure 2] Cross-sectional view of the machine room

[Fig. 3] Vertical side view of the machine room

FIG. 4 is a vertical sectional side view of a main part showing a closed state of a front panel.

FIG. 5 is a vertical cross-sectional side view of essential parts showing an opened state of the front panel.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Refrigerator (cooling storage) 2 ... Refrigerator main body (storage main body) 3 ... Machine room 5 ... Compressor (refrigeration cycle constituent equipment) 6 ... Condenser (refrigeration cycle constituent equipment) 11 ... Intake duct 12 ... Exhaust duct 13 …Blower
17 ... Front panel 18 ... Intake port 20 ... Exhaust port

Claims (2)

[Claims] 1. A machine compartment is provided in an upper part of a storage main body, and a component of a refrigeration cycle and a blower for supplying cooling air to the machine compartment are provided in the machine compartment. The exhaust duct and the intake duct are divided into two parts, and the exhaust port located at the front end of the exhaust duct for discharging air is located behind the intake port located at the front end of the intake duct for sucking air. A cooling storage cabinet characterized by being provided. 2. The intake duct and the exhaust duct are formed side by side in a vertical direction, and a front panel having an intake port is supported in an opening at a front end of the intake duct so that an upper portion of the front panel can be opened and closed to rotate. The cooling storage according to claim 1.