JPH0519735Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention relates to a machine room in a low-temperature case in which a compressor, condenser, and blower are arranged in the machine room.

(b) Prior art The cooling device described in Publication of Utility Model Publication No. 60-9664 (F25D19/00) has a machine room with an opening on either the front or the back below the storage chamber, and the machine A refrigerant compressor, a condenser, and a blower that form a refrigerant cycle indoors are arranged approximately in a line with a space between them, and the condenser is located upstream of the blower, with the suction surface facing the machine room. The condenser is placed vertically so that it faces the side wall with a gap, and the suction surface of the condenser is covered with a mesh filter that is coarse on the opening side of the machine room and dense on the back side. .

(c) Problems to be solved by the invention According to the above-mentioned conventional technology, by arranging the condenser, blower, and refrigerant compressor in a horizontal straight line, the front and rear width of the machine room can be reduced and the machine room can be made more compact. On the other hand, since the perforated plate that covers the opening of the machine room has many holes over almost the entire area, the holes on the right side of the perforated plate are the intake holes, and the holes on the left side are the intake holes. The hole becomes an exhaust hole, and as a result, a so-called short cycle occurs in which warm air exhausted from the machine room is directly drawn into the machine room, causing problems such as poor heat exchange in the condenser. Since the warm air flows along the air, there is a problem in that in face-to-face refrigerated sales cases such as this type of cooling system, the feet of the sales staff are exposed to the warm air, making them feel uncomfortable.

The purpose of the present invention is to solve the above-mentioned problems, and by forming an article storage chamber in the machine room, the distance between the intake and exhaust ports is increased.

(ii) Means for solving the problem In order to achieve the above object, the present invention provides a first cover on one side of the opening of the machine room, which has an air intake port for drawing air from the outside into the condenser, and a second cover on the other side of the opening, which has an exhaust port for exhausting air from the machine room to the outside, and is configured to form an item storage chamber that extends into the machine room between the air intake port and the exhaust port and whose front wall is spaced from the front portion of the peripheral wall of the machine room.

(e) Effect According to the above configuration, by forming the article storage chamber that enters the machine room between the intake port formed on one side of the opening of the machine room and the exhaust port formed on the other side of the opening, The distance between the intake port and the exhaust port is increased, which prevents the short cycle of warm air from the exhaust port to the intake port, and the passage width of the machine room is narrowed due to the formation of the goods storage room. Due to this relationship, the directivity of the warm air exhausted from the exhaust port becomes better.

Furthermore, since the article storage room can store wrapping paper and the like necessary for food packaging in the storage room, the machine room can be used effectively.

(F) Embodiment An embodiment of the present invention will be explained below based on the drawings. 1 is a horizontally closed type low-temperature case suitable for cooling and preserving articles such as fresh confectionery; storage room 2;
The main body is composed of a cooling chamber 3 located directly below this storage chamber, and a machine room 4 located immediately below this cooling chamber. The storage room 2 has a curved transparent plate 5 arranged from the front to the top, a plurality of transparent doors 7 that slide in a left-right direction inside a frame 6 arranged on the back, and a plurality of transparent doors 7 on both left and right sides. It consists of transparent side plates 8 arranged respectively, and a removable bottom plate 9 which also serves as a partition plate, a shelf 10 and a fluorescent light 11 are provided inside. The bottom plate 9 partitions the storage and cooling chambers 2 and 3 into upper and lower sections, and has an air outlet 12 along its rear edge and an air inlet 13 along its front edge. , the cooling chambers 2 and 3 are configured to communicate with each other. The cooling chamber 3 is constituted by a heat insulating wall 14 with an open upper surface on which the storage chamber 2 is placed and supported, and the machine room 4 is formed below the heat insulating wall 14. The heat insulating wall 14 has a drain port 15 in the bottom wall, and is supported by a base 16 of the machine room 4 and a metal pedestal 17 attached to this base. In addition, 18
is a peripheral wall attached to the pedestal 17.

20 and 21 are first ones arranged in the cooling chamber 3;
Both second evaporators are vertically overlapped with each other via a metal partition plate 22 which also serves as a dew receiving plate so that the first evaporator 20 is located inside and the second evaporator 21 is located outside.
They are arranged with a low inclination in five directions, and are operated for cooling alternately every three hours, for example, by a timer (not shown). The cold air heat exchanged between the first and second evaporators 20 and 21 is forced to circulate through the blower fan 19 as shown by the arrow in FIG.

The peripheral wall 18 is composed of a front portion 18A and left and right side portions 18B, 18C, so that the back side of the machine room 4 is open. In the machine room 4, a condenser 24 is disposed sideways with a space between it and one side surface 18C that forms an intake path 23, that is, the air inlet surface faces the side surface 18C. Behind the 24, that is, on the leeward side, there is a blower 25, a compressor 26, which circulates air as shown by the arrow in FIG.
A dew pan 27 is arranged. This condenser 24,
The compressor 26 includes both the first and second evaporators 20 and 21.
Together with this, they constitute a refrigeration cycle. or,
The dew pan 27 receives dew from the drain port 15 and evaporates it, but when there is a large amount of dew, the dew is drained into a drawer-type drain tank 28 directly below. Reference numeral 29 is an electrical equipment box that stores electrical equipment parts. Reference numeral 30 denotes an article storage chamber formed by entering the machine room 4 on the leeward side when viewed from the dew pan 27. Wrapping paper, packaging boxes, and tapes for stored articles can be directly stored in this article storage chamber. However, in consideration of hygiene, it is preferable to provide a drawer 31 as shown in the figure and store it in this drawer. The article storage chamber 30 consists of a front wall 30A, left and right side walls 30B, 30C, and the front wall 30A and the front part 18 of the peripheral wall 18.
Between A and A is an auxiliary passage 3 that narrows the width of the machine room 4.
2 is formed, and one side wall 30B and the peripheral wall 1
8 and the other side surface portion 18B, an exhaust passage 33 is formed. Reference numeral 34 designates a first cover whose portion facing the air intake path 23 serves as an air intake port 35, which covers the right half of the opening of the machine room 4. 36 is the exhaust path 3
The left half of the opening of the machine room 4 is covered with a second cover whose part opposite to the exhaust port 37 is an exhaust port 37. 38 is a filter consisting of a mesh part 39 and a plate part 40;
A mesh part 39 faces the air inlet surface of the condenser 24, and a plate part 40 is provided in the machine room 4 so as to close the space between the condenser 24 and the first cover 34.

According to this configuration, the article storage chamber 30 that enters the machine room 4 is formed between the intake port 35 formed on one side of the opening of the machine room 4 and the exhaust port 37 formed on the other side of the opening. As a result, the distance between the intake port 35 and the exhaust port 37 becomes longer, and the short cycle of warm air from the exhaust port 37 to the intake port 35 can be prevented. Since the passage width of the machine room 4 is narrower, the directivity of warm air exhausted from the exhaust port 37 is improved.

In addition, in order to store wrapping paper, etc. necessary for food packaging in the storage room 2, the goods storage room 30 is equipped with a machine room 4.
This makes it possible to make effective use of resources and at the same time speed up sales operations.

(g) Effects of the device According to the above-mentioned merits, the following effects are produced.

By forming an article storage chamber that enters the machine room between an intake port formed on one side of the opening of the machine room and an exhaust port formed on the other side of the opening, the article storage chamber inevitably draws air. The separation distance between the exhaust port and the exhaust port is increased, which prevents the short cycle of warm air from the exhaust port to the intake port, and the passage width of the machine room becomes narrower due to the formation of the article storage room. For this reason, the speed of warm air exhausted from the exhaust port becomes slightly faster and the directivity becomes better.

Since the goods storage room can store wrapping paper and the like necessary for food packaging in the storage room, the machine room can be used effectively and at the same time sales operations can be carried out quickly.

Since the filter provided on the front side of the condenser is composed of a mesh part and a plate part provided to close the gap between the condenser and the first cover,
A shot cycle inside the machine room can be reliably prevented.

[Brief explanation of drawings]

The drawings all show an embodiment of the machine room of the low temperature case of the present invention. Figure 1 is a sectional view taken along line A-A in Figure 2, Figure 2 is a rear perspective view of the low temperature case with the first cover opened, and Figure 3 is a rear perspective view of the low temperature case with the first cover opened. FIG. 2 is a sectional view taken along line B-B, and FIG. 4 is a perspective view of the filter. 4... Machine room, 18... Peripheral wall, 18A... Front section, 24... Condenser, 25... Blower, 26...
Compressor, 30... Goods storage room, 30A... Front wall,
34...first cover, 35...intake port, 36...
Second cover, 37...exhaust port.

Claims (1)

[Scope of utility model registration request] A condenser is arranged horizontally in a machine room with an opening on one side, and a blower is provided to send air from the condenser to a compressor. The condenser is provided with a first cover in which an intake port is formed to take in air from the outside, and a second cover in which an exhaust port is formed on the other side of the opening to exhaust air from the machine room to the outside. A filter consisting of a mesh portion facing the air inlet surface of the container and a plate portion provided to close the gap between the condenser and the first cover, and a filter that enters the machine room between the intake port and the exhaust port, and A machine room of a low-temperature case comprising an article storage chamber whose front wall is spaced apart from the front part of a peripheral wall of the machine room.