JPH0610579B2 - Separate type cooling showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to a separate type cooling showcase in which a display box for storing goods while cooling them and a machine box for storing mechanical parts are separately formed. More specifically, it relates to an improved mechanical box for obtaining cooling air by heat exchange.

2. Description of the Related Art In a cooling showcase, an upper storage room and a lower machine room are generally integrally formed, and for example, in Japanese Utility Model Publication No. 61-25578, a meandering shape is formed. This cooler can be easily attached to the upper part of the storage room. On the other hand, there is also proposed a showcase in which a storage room and a machine room are separated and separately formed. In Japanese Utility Model Publication No. 44-13746, a cooling room having an evaporator and a machine room having machine parts are provided. Disclosed is a showcase including a cooling source device and a showcase body that is formed separately from the cooling source device and communicates with a cooling chamber.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above publication, the cooling source device and the showcase body are separately configured, and the two are communicated by an air circulation path to forcibly circulate cool air in the showcase body. I have to.
However, although the cooling source device communicates with the main body of the showcase, it is not considered to reduce the arrangement and configuration of the equipment with respect to its size (especially height). The plate could not be placed in an unused space formed below the display case body.

Usually, the height of the unused space below the main body of the display case is about 230 mm or more, and an object of the present invention is to provide a machine box that can be installed in this unused space.

Also, since the evaporation promoting member provided between the air blower and the drain tray is simply configured in a grid pattern, the evaporation amount of defrost water is small, and the wind from the air blower drains. Since the defrosting water stored in the dish directly hits the defrosting water, there is a problem that the defrosting water swells and spills from the drainage dish near the side surface.

[Structure of the Invention] Means for Solving the Problems A separate type cooling showcase according to the present invention is provided with an air intake provided on an upper surface, an exhaust opening provided on a side, a compressor, and an air. A condenser horizontally arranged corresponding to the intake, a blower arranged below the condenser, a drain tray arranged below the blower, and a space in the drain tray. A plurality of first plate groups arranged with a space between them, and a plurality of second plate groups that are arranged at intervals and intersect the first plate group, and are formed in a lattice shape, An outside for accommodating a first machine room for accommodating an evaporation promoting member in which a plate group in one direction is inclined, a side wall of the first machine room for which an insulating material is provided, and an evaporator and a blower device for the evaporator A second machine room protruding in one direction,
A cool air feed port and a return cool air intake port, which open upward, are arranged side by side.

By arranging the first machine room and the second machine room side by side, the number of limiting elements is reduced in the height direction, and the machine parts are made thinner and compact in consideration of the arrangement of the machine parts in each machine room.
The outer wall of the second machine room and the partition walls of each part are integrally molded with a heat insulating material to improve the heat insulating property of each part, and the number of assembling elements is reduced. The air that has undergone heat exchange through the condenser is in a state in which it is easy to come into contact with the defrosted water stored in the drain tray due to the upper and lower positional relationships, and promotes evaporation and vaporization thereof. Further, in order to accelerate evaporation and vaporization, an evaporation promoting member having a grid shape and one plate group being inclined is provided on the evaporation tray, thereby increasing the evaporation amount of defrost water in a small space. In addition to being able to do this, defrost water no longer spills out of the evaporating dish. Further, the air cooled in the heat exchange section is directed upward from the cold air outlet through the casing section and the delivery section, and is adiabatically conveyed to the display box by the blower pipe.

Embodiments Embodiments of the present invention will be described below with reference to FIGS.

(G) is a display stand, and a leg member (T) that forms an unused space (S) is provided below a room for displaying products.

(1) is a closed-type display box (10), which is formed separately from this display box, stores mechanical parts and guides cooling air, that is, cool air, and displays, for example, the unused space (S) A blower pipe that is in communication with a machine box (2) disposed apart from the box (10) and both boxes (10) and (2) so that air can flow, and that is covered with a heat insulating material to suppress a temperature rise of cold air. (3) is a separate type showcase, which is used for freezing, refrigerating, ice temperature and warming by changing the temperature zone to be controlled according to the type of parts to be stored. Let's take the refrigerated showcase as an example.

The display box (10) has a substantially spherical shape, and constitutes a substantially lower half of the display box (10) and a substantially circular base pedestal (11) as viewed from above, and an upper half thereof that also serves as a cooling chamber and serves as a bottom portion. It comprises a product storage section (12) having a turntable (18) as an exhibition stand for product placement, and in this example, it is placed on the display stand (G). The product storage section (12) is a see-through member (hereinafter referred to as a hood) (22) formed of a transparent body having a three-dimensional shape of a lower surface opening, for example, a cubic curved surface (in this example, a substantially hemispherical shape). A hood (22) and a base (11) that are surrounded and have a triple structure using a transparent resin such as acrylic acid resin as a transparent body and have an annular frame member (24) arranged over the entire lower end week.
(Specifically, a packing (25) for sealing with the horizontal part of the partition plate (21) is provided on the lower surface of the annular frame member (24). The hood (22) is rotatably fixed to the partition plate (21) by a hinge portion (23).

The base (11) has a ventilation chamber (13) in the upper stage and a lower illumination chamber (14) in the upper stage, and both chambers (13) and (14) have a partition plate (19), a heat insulating material (15A), and a heat insulating material (15A). It is partitioned by a transparent member having properties such as transparent glass (15B). Then, the ventilation chamber (13) introduces the air cooled by the machine box (2) and carried through the blower pipe (3) (this is referred to as cold air), and guides this cold air to the product storage unit (12). Cold air supply part (16) as a high-pressure space and air after cooling the product storage part (12) (this is called return cold air)
The cold air return part (17) as a low pressure space for collecting and discharging the air to the blower pipe (3) is separately formed.

The blower pipe (3) has its one end connected to the cold air outlet (38) of the machine box (2) and the other end connected to the cold air inlet (not shown) of the cold air supply unit (16), respectively, to adiabatically cool the cold air. A supply cylinder that circulates and a return cylinder that circulates the return cool air by connecting one end side to the return cool air suction port (39) of the machine box (2) and the other end side to the return cool air outlet of the cool air supply unit (17), respectively. And both cylinders are covered with a heat insulating material. Both cylinders may be configured to be bendable and extendable.

The machine box (2) is composed of an upper cover (4), a lateral cover (5) and a base (6) in a box shape.
A first housing for accommodating a compressor (31), a condenser (32), a blower device (33) for the condenser, and the like which form a part of a refrigeration cycle
Air cooled by the evaporator (36) for accommodating the machine room (P), the evaporator (= cooler) (36) and the air blower device (37) for the evaporator, and flowing the air to the air blow pipe (3). A cold air outlet (38) for sending out (this is called cold air) and a return cold air inlet (39) for sucking in air (which is called return cold air) after cooling the product storage section (12) are directed to the side. A second machine which is formed to project and is provided in parallel with the upper surface opened, a drainage tank (40) is arranged below, and a heat insulation material typified by styrofoam defines the first machine room (P) in an adiabatic manner. A chamber (Q) is formed. The machine box (2) is arranged in an unused space (S) formed by the leg members (T) in order to make it difficult to confirm the machine box (2) from the outside, especially from the customer display side of the display case (G). .

When arranging the machine box (2) in the unused space (S), since the unused space (S) often has a height of 230 mm or more, the height of the machine box (2) is within 230 mm. I keep it to. In the first machine room (P) of the machine box (2) in this embodiment, the air intake (4A) is exhausted to the upper surface of the upper cover (4) and to the side surface of the upper cover (4) and the lateral cover (5). Due to the formation of the mouths (4B) and (5B), it is preferable to leave a margin of at least about 30 mm above the box, and the height of the machine box (2) is 200 mm.

Since the height of the machine box (2) is restricted in the first machine room (P), the condenser (32) is horizontally arranged below the air intake port (4A) on the upper surface so that the fins are in the vertical direction. It is installed, and the blower device (33) for the condenser and the drain tray (3
4) is located. The drainage tray (34) is provided with an evaporation promoting member (35) that sucks up the defrosted water collected in the drainage tray and increases the contact area with the air to facilitate evaporation. As the evaporation promoting member (35), a plate made of a material having hydrophilicity (for example, a resin porous body) has a first plate group (35A) in which one is oriented in the horizontal direction, and a second plate group (in which the other is inclined) ( 35B) which is crossed [this is called an inclined body and is shown in FIG. 1] is employed. On the other hand, conventionally, the grids are arranged in the horizontal direction and are orthogonal to each other to form a plane view grid. By the way, when both of them were arranged and tested, the tilted body showed about 20% more evaporation than the latticed body, and because the distance between the blower and the drain tray was close, The defrosting water in the drainage tray (34) was directly affected by the wind from the blower, but the use of an inclined body prevents the wind from the blower (33) from directly blowing on the water surface. There is an advantage that the defrosting water from the drain tray (34) can be prevented from leaking because the water surface is not ruffled. Also, changing the direction of the wind by the slope,
An advantage that it can be taken out easily when taken out together with the drain tray (34) can be expected.

The second machine room (Q) is made of a heat insulating material such as Styrofoam and is composed of a main body (Q1) and a lid body (Q2) in one box shape, and a plate fin type evaporator (36) is provided in the room. A heat exchange section (41), a casing section (42) communicating with the heat exchange section (41) and accommodating the evaporator blower (37), and an air inlet of the heat exchange section (41). It is formed between the return cool air intake port (39), returns to the proper place, detects the temperature of the air, and when the temperature becomes lower than a predetermined temperature (for example, 6 ° C.), the operation of the compressor (31) is stopped and a constant temperature (for example 9 ℃)
A temperature control means (43) for restarting the operation of the compressor (31) is provided when the following occurs, and the air is allowed to flow while being gradually inclined from the cool air intake port (39) to the air inlet. The suction part (44) and the casing part (4
The delivery section (45), which is formed between the air outlet of 2) and the cold air delivery port (38) and serves as a conduit through which air can flow, is integrally configured. In addition, the bottom surface (41
B) has a rectangular shape and is a surface inclined so as to become higher from one side where the air inlet is located to the opposite side, and the lower proper place (in this example, the heat exchange section (41) and the suction section (44). ) Is provided with a drain hole (46) for discharging defrost water, and in order to prevent cold air from directly flowing into the casing part (42) from the suction part (44), A partition member (47) for partitioning the suction part (44) and the inlet opening (42B) of the casing part (42) is provided, so that the heat exchange part (4) passes through the suction part (44).
The return cold air guided to 1) is guided to the lower side of the evaporator (36) and is sucked by the air blower (37), so that the evaporator (36) is cooled.
While moving in contact with the evaporator (36), the evaporator (36) moves upward from below. At this time, since the bottom surface (41B) of the heat exchanger (41) is inclined so as to gradually become higher from the inlet side side toward the other side, the return cold air is substantially uniform over the entire lower surface of the evaporator (36) ( The inlet side has a large amount, and the low speed opposite side has a small amount and moves at a high speed, resulting in a substantially uniform flow. Therefore, the evaporator (36) can be uniformly heat-exchanged and cooled efficiently. it can. The upper surface (41A) of the heat exchange section (41) is also inclined so that the outlet side is high and the opposite side is low. On the other hand, since the heat exchange part (41) and the casing part (42) are integrally formed by the heat insulating material forming the second machine room (Q), the casing of the blower device (37) and the air flow are formed. The pipes forming the passages can be omitted, and it is not necessary to connect the pipes to each other, and the heat insulation efficiency can be improved. Further, it is also possible to integrally form the elbow portion (48) as a directing portion for directing the cold air conveyed in the horizontal direction upward by projecting it laterally. On the other hand, below the drainage hole (46), a drainage tank (40) that stores defrosted water and conveys it from the drainage hole (46) to the drain tray (34) is arranged. ) Has an inlet opening corresponding to the water drain hole (46), a trap portion for storing water, and an outlet opening.

The evaporator blower (37) according to the present invention continues to operate regardless of the cooling operation and defrosting operation (but off-cycle defrosting) of the evaporator (36) due to the operation / stop of the compressor (31). I add that it is a thing.

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it has the following effects.

As a machine box for storing mechanical parts for cooling, the second machine room for accommodating the evaporator and the air blower for the evaporator is formed of a heat insulating material, and is arranged in parallel with the first machine room for accommodating other machine parts. , The height of the machine box can be lowered. Further, in this second machine room, the cool air sending port and the return cool air sucking port are provided side by side and projected outward and opened upward, which facilitates connection with a pipe body such as a blower pipe. You can do it.

Further, in the first machine room, the condenser is horizontally arranged below the air intake on the upper surface, and the air blower and the drain tray are arranged vertically below the condenser to reduce the height of the machine room. The air that is suppressed and warmed through the condenser is efficiently blown to the surface of the drain tray. In addition, this drainage tray is formed with a grid shape that sucks up the defrosted water that is stored and increases the contact area with the air, and is provided with an evaporation promoting member that is an inclining plate group in one direction. The stored water in the drain tray is efficiently vaporized and can be transported to the exhaust port.

Furthermore, since the height of the machine box can be kept low, it is possible to arrange the machine box in an unused space formed under the display stand. Can be effectively used. In addition, a separate type cooling showcase can be configured by providing an exhibition box that communicates with the mechanical box by a blower pipe so that air can flow.
The display box will be lighter in weight, and even if it is placed on the top of the display stand, the load applied to the display stand can be reduced compared to the past, and it is possible to support various shapes and sizes of the display box. Become. It should be noted that the display box itself, that is, the display case can be configured by the display box itself.

[Brief description of drawings]

Each drawing shows an embodiment of the present invention, FIG. 1 is an exploded perspective view of a machine box, FIG. 2 is an external perspective view of a state in which a showcase is placed on a display stand, and FIG. 3 is a vertical section of an exhibition box. Fig. 4, Fig. 4 is a plan view of the second machine room, and Figs. 5 to 8 are A-A sectional views, BB sectional views, CC sectional views, and D-D sectional views of Fig. 4, respectively. It is a figure. (1) …… Showcase, (2) …… Machine room, (3)…
… Blower, (4A) …… Air intake, (4B) (5B)
...... Exhaust port, (10) …… Exhibit box, (P) …… First machine room, (Q) …… Second machine room, (31) …… Compressor, (3
2) ... condenser, (33) ... condenser blower, (3
4) ... drainage tray, (35) ... evaporation promoting member, (35
A) ... first plate group, (35B) ... second plate group, (3
6) ... evaporator, (37) ... evaporator blower, (3
8) …… Cold air outlet, (39) …… Return cold air inlet,
(41) ... heat exchange section, (42) ... casing section,
(44) ... inhalation part, (45) ... delivery part.

Continuation of the front page (56) Bibliography Shou 57-141901 (JP, U) Seki 49-6563 (JP, U) Seki 49-8851 (JP, U)

Claims (1)

[Claims] 1. An air inlet arranged on an upper surface, an exhaust outlet arranged on a side surface, a compressor, a condenser horizontally arranged corresponding to the air inlet, and the condenser. An air blower disposed below the fan, and a drain tray disposed below the air blower,
From a plurality of first plate groups arranged at intervals in the drain tray and a plurality of second plate groups intersecting the first plate group and arranged at intervals A first machine room, which is formed in a lattice shape and accommodates an evaporation promoting member in which a plate group in either one direction is inclined, and a evaporator and an air blower for the evaporator, which are arranged in parallel with the first machine room by a heat insulating material. A separate cooling showcase characterized in that a second machine room projecting outward for accommodating a device, a cool air feed port opening upward, and a return cold air intake port are arranged in parallel.