JPS637819Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air intake and exhaust structure for a freezing/refrigerating case with a built-in cooling unit.

In a case with a built-in cooling unit, the machine room in which the cooling unit is installed is usually located at the bottom of the case outside the cooling space. The cooling unit includes a refrigerant compressor, a refrigerant condenser, etc. In particular, since the refrigerant condenser requires constant cooling, it is usually air-cooled by a motor fan. For this reason, the machine room is provided with an air intake and an air outlet for air cooling.For example, air is taken in from the lower front side of the show case and discharged to the rear, or air is taken in from the lower rear side of the show case and discharged to the front side. It's becoming like that.
However, the above method is not suitable if the case is installed near the wall of the store, and even if it is installed away from the wall, warm air will blow out at the customers' feet, especially in the summer. This will cause discomfort to the customers.

The present invention aims to provide a case that eliminates the above-mentioned drawbacks.

The present invention comprises a machine room in which a cooling means such as a refrigerant evaporator is disposed in a cooling space surrounded by a heat insulator, and a cooling unit such as a refrigerant condenser is disposed in the lower part outside the cooling space, Moreover, the refrigeration system is made by opening the top surface.
In the refrigerated case, the machine room is divided into a space on the windward side and a space on the leeward side of the refrigerant condenser, and a part of the side wall of the case is opened into the space on the windward side of the machine room and the space above the case, respectively. The hollow heat insulating body has a first passageway that opens in the leeward side of the machine room and a second passageway that opens near the top of the showcase. The air intake and exhaust structure of the show case is characterized by a panel structure that is relatively tall and can be attached to and removed from the show case main body with openings at both upper and lower ends.

Examples of the present invention will be described below.

FIG. 1 shows a schematic structure of an embodiment in which the present invention is applied to a top-opening type freezer/refrigerator open case.

In the figure, the case body 1 is provided with a cross-sectional inner box 3 at regular intervals inside a cross-sectional heat insulating body 2, and a side plate 4 made of a heat insulating body and a panel duct 5 according to the present invention are installed in the openings on both sides. By setting up
A cooling chamber 6 with an open top surface is formed. In the space 7 between the heat insulator 2 and the inner box 3, a refrigerant evaporator and a fan for ventilation circulation (both not shown) are arranged. It is well known that in this way, an air curtain is formed that passes through the space 7 and covers the open part of the cooling chamber 6 to circulate cold air and cool the inside of the cooling chamber 6.

At the bottom of the case, that is, in the lower space outside the heat insulator 2, there is formed a machine room 10 in which a refrigerant condenser 8, a plurality of motor fans 9 (for convenience, shown by solid lines), and a refrigerant compressor (not shown) are arranged. ing. Furthermore, the machine room 10 is divided into two spaces, a space on the windward side and a space on the leeward side of the refrigerant condenser 8, by the refrigerant condenser 8 itself and the partition plate 11.

Here, a perspective view of the panel duct 5 and its A
The description will be made with reference to FIGS. 2, 3, and 4, which are a sectional view taken along the line A-A and sectional view taken along the line B-B.

The panel duct 5 is a hollow heat insulating body with both upper and lower ends open, and is made to have the same shape as the side profile of the case body 1. In particular, the panel duct 5 has a panel portion for closing the opening formed at the side edge of the heat insulating body 2. have.
Further, in the middle portion of the panel duct 5, a partition wall 51 is provided in the vertical direction to partition the hollow portion and the area below the hollow portion into two. Furthermore, the lower part of the panel duct 5,
That is, the motor fans 53, 53, 52' are installed in the areas immediately below the two hollow parts, respectively, using the frames 52, 52'.
53' is provided. These motor fans 53,
53' is for one side (for example, motor fan 5).
3) is operated for air intake, and the other (for example, motor fan 53') is operated for air exhaust. 54 is a hole for mounting with a bolt or the like.

This panel duct 5 is attached to the case body 1 in a manner similar to the side plate 4 so as to close the side opening of the heat insulator 2. In addition, in this state, partition plate 1
Needless to say, the panel duct 5 is constructed so that the panel duct 1 and the partition wall 51 are in contact with each other, and the two hollow parts of the panel duct 5 communicate with the windward side space and the leeward side space of the refrigerant condenser 8 in the machine room 10, respectively. I will do it.

In this way, as shown by the arrow in FIG. After exchanging heat through the motor fan 53', the upper end of the panel duct 5 is opened,
That is, it is discharged above the case body 1.

By the way, as shown in FIG. 1, since the two show cases 1 and 1' are connected and used here, the panel duct 5 is provided at the connecting part of the two show cases 1 and 1'. Exhaust heat from '. For this reason, the lower part of the panel duct 5 is formed so as to communicate with the machine rooms of the two show cases. Of course, when used as a side wall of a single case, the outer panel portion extends to the lower end of the case main body 1, similar to the side plate 4, to close off the outer wall side. Moreover, the panel duct 5 is made so that its outline matches that of the show case body 1, and is installed so as to be sandwiched between the two show cases, thereby making the installation work easy without spoiling the appearance. Note that it is preferable to provide a louver or a mesh plate at the upper end opening of the panel duct 5 to prevent the intrusion of dirt and debris. Of course, this panel duct 5 may be provided integrally with the case body 1 during the manufacturing stage. 55 is a decorative plate for closing the gap created between the front ends of the two show cases.
Unlike the machine room 10, the bottom plate of the panel duct 5 is unnecessary.

Furthermore, as shown by the two-dot chain line in FIG. 1, a normal duct or a duct 13 made of a transparent material such as acrylic is connected to the upper end opening of the panel duct 5, and has two passages communicating with each hollow part.
By leading this duct 13 directly outdoors or connecting it to another duct leading outdoors, it is possible to prevent the room temperature from rising, especially in summer.
In particular, by using a transparent duct, a good display effect can be obtained without blocking the view. That is, it is most preferable to use such a duct 13 in the summer and remove it in the winter to utilize the exhaust heat from the machine room for heating.

As explained above, according to the present invention, the following effects can be obtained.

Since relatively high temperature exhaust air does not need to be blown at the customers' feet, the customers will not feel uncomfortable, especially in the summer.

The main body of the case can be left as is, and the appearance will not be compromised.

In the winter, the exhaust heat from the machine room can be used for heating, and in the summer, by connecting another duct to the panel duct, it is possible to prevent the temperature inside the room from rising.

When using multiple top-opening flat-type show cases connected together, the two show cases are connected through one hollow insulator, and this hollow insulator is used as a common side plate and air intake/exhaust of the two show cases. Since it can be used as a device, costs can be reduced.

[Brief explanation of the drawing]

FIG. 1 shows a schematic structure of an embodiment of the present invention in a perspective view, FIG. 2 shows a panel duct in the perspective view, and FIGS. 3 and 4 respectively show A-A in FIG. A line sectional view and a BB line sectional view are shown. In the figure, 2 is a heat insulator, 3 is an inner box, 4 is a side plate, 5 is a panel duct, 6 is a cooling room, 8 is a refrigerant condenser, 1
0 is the machine room.

Claims (1)

[Scope of utility model registration request] A cooling means such as a refrigerant evaporator is disposed within a cooling space surrounded by a heat insulator, and a machine room is constructed in which a cooling unit such as a refrigerant condenser is disposed outside the cooling space, and the upper surface is open. In the freezing and refrigerating case, the machine room is divided into a space on the windward side and a space on the leeward side of the refrigerant condenser, and a part of the side wall of the case is divided into a space on the windward side of the machine room and a space on the leeward side of the machine room. A hollow heat insulating body having a first passage opening near the top, a second passage opening near the leeward side of the machine room and near the top of the show case; An intake/exhaust structure for a freezer/refrigerated storage case characterized by having a panel structure that is approximately the same height as the storage case body and is open at both upper and lower ends and can be attached to and removed from the storage case body.