JPH01163582A - Showcase - Google Patents

Abstract

PURPOSE: To improve a contact efficiency between chill and goods, by providing a ventilation chamber with a vortex chamber which is so formed to communicates with a lower end of a cool air blowing tower that cool air introduced from one side of spirals at the center part thereof sequentially to be let into the cool air blowing tower. CONSTITUTION: A ventilation chamber 13 is positioned on the top surface of a base 11 with a turntable 44 as display tray making up an upper wall. A cool air supply part 16 has a hollow cool air blowing tower 41 which has a number of cool air blowing holes 40 formed on the circumferential surface thereof to be extended into a goods housing part 12 and a vortex chamber 16a is so formed to communicate with a lower end of the tower that cool air introduced from a cool air inlet 42 provided on one side thereof spirals at the center part sequentially to be guided into the cool air blowing tower 41. The cool air introduced from the cool air inlet 42 is directed along a second upright wall 48B, moves to the center spiraling sequentially along a first upright wall 48A, and rises spiraling being guided into the cool air blowing tower 41 from the lower end of the cool air blowing tower 41 to be released in a vortex sequentially from the cool air blowing holes 43. Thus, a longer conveying path enables improvements in the cooling efficiency of goods and a housing part.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] Industrial Field of Use The present invention relates to a showcase in which cold air blown into a product storage section for cooling and storing products is brought into efficient contact with the products.

Conventional technology In showcases with forced circulation of cold air, various cold air circulation paths are used depending on the structure of the product display area.
-In order to efficiently cool the products inside the shell from the cold air outlet to the cold air suction port, the cold air blown out has a directionality, so that it is sucked in from the cold air suction port without being blown onto the products. It is designed to prevent what is called a short cycle of cold air. A cold air outlet and a cold air intake are provided so that the cold air that can be blown out directly comes into contact with the product.
There is a publication No. 4-13746. This publication describes a cooling source device having a cooling chamber containing an evaporator and a cold air circulation fan, and a machine room containing other cooling devices, and a cooling source device formed separately from the cooling source device and communicating with the cooling chamber. The present invention provided a so-called separate showcase comprising a case body and a case body.

Problems to be Solved by the Invention In the above-mentioned prior art publication, cold air is blown out horizontally from the upper part of one side wall of the showcase body, and the horizontal reach is controlled by a partition plate that is slidable in the horizontal direction. A cold air circulation path is adopted in which the cold air is directed downward and the cold air is discharged into the cooling chamber from the lower part of the side wall.

However, since the main body of the showcase has a rectangular shape, when directing cold air, it tends to be directed directly. Therefore, cold air or high-temperature cold air tends to reach the corners, making the temperature distribution inside the refrigerator uniform. There was a problem that was a factor that hindered the development. On the other hand, cold air is blown out from the cold air outlet formed on a flat surface, but it travels in a nearly straight line until it collides with the products in the refrigerator, the partition plate, and each inner wall. There was a problem in that the contact area and amount of contact of the cold air passing along the path were smaller than in the case where the cool air passed along the curve, and the cooling efficiency was poor.

Therefore, in the present invention, the cold air blown out advances in a curve,
It provides a showcase with improved contact efficiency with products.

[Structure of the invention]

Means for Solving the Problems The showcase of the present invention has a product storage section surrounded by a see-through member that can be opened and closed at the top, and a base with a ventilation chamber formed below the product storage section. A hollow cold air blowing tower extending upward from the bottom and having a large number of cold air blowing holes on the circumferential surface is installed approximately in the center of the product storage section, and a cold air blowing tower located directly below the cold air blowing tower in the ventilation room is installed. A vortex chamber is provided so that the cold air introduced from one side is communicated with the lower end of the tower, and is formed so that the cold air sequentially swirls around the center and enters the cold air blowing tower.

The cold air introduced from the cold air inlet in the working cold air supply section is smoothly directed by the second vertical wall and the first vertical wall, sequentially moves to the center, and is guided into the cold air blowing tower while swirling, and then swirls from the cold air blowing hole. released.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to FIGS. 1 to 8.

(G) is a display case that is placed in stores such as pharmacies and discount shops to display and sell products. Legs (I) having doors for loading and unloading products, forming a product display room, and forming an unused space (S) under the product display room.
has been established. In this example, four wooden supports are shown as the leg members (T), but the present invention is not limited to this, and the unused space can be shielded by board members that act as blind boards over the front and both sides. You may.

(1) is a closed display box (12) with a product storage area (12).
10), a mechanical box 20) that houses mechanical parts such as a compressor (21), a condenser (22), and an evaporator (25), and is formed separately from the display box (10); A blower pipe (3) connects the box (10) and the machine box (20) to allow air circulation
This is a separate showcase that can be constructed from 0).

In addition, depending on the type of product to be stored and the temperature range to be controlled, it is used for freezing, refrigeration, ice temperature, etc., and in this embodiment, as an example, refrigeration 14 = showcase (hereinafter referred to as showcase) will be introduced and explained. However, the present invention is not limited to separate type showcases, but is directed to showcases that are normally displayed inside the shell.

The machine box (20) includes a compressor (21), a condenser (22), and a condenser blower (2) that constitute part of the refrigeration cycle.
3), etc., and a first machine room (24) that houses the evaporator (=cooler) (25) and the evaporator blower (26), etc., and the evaporator for air circulation to the blower pipe (30). (25)
A cold air outlet (27) that sends out air that has been cooled by (this is called cold air) and a return cold air that sucks air that has been cooled (this is called return cold air) after cooling the storage section (12) that will be described later. The suction port (28) is installed in parallel to the wall, and the drain pan (29) is installed below.
A), and a second machine room (29) that is adiabatically defined from the first machine room (24) has been completed. And the machine box < 20) is outside especially the display case (
In order to make it difficult to confirm G) from the customer exhibit side, the leg material (T
) is located in the unused space (S) formed by

The display box (10) has a spherical shape in appearance;
It consists of a base (11) which constitutes approximately the lower half and has a circular horizontal cross section, and a product storage section (12) which constitutes the upper half and serves as a space to be cooled and a storage space for products. In this case, it is placed on the top of the display case (G).

The main body (IIA) forming the outer shape of the base (11) is made of a translucent material, such as a milky white resin.

In addition, there is a ventilation room (3) on the upper level, and a lighting room (14) on the lower level.
), and the compartments (13) and (14) are partitioned by a heat insulating material (15A) and a light-transmitting member having heat insulating properties, such as transparent glass (15B). And ventilation room (13
) is a cold air supply part (
16) and a cold air return section (17) as a low-pressure space that collects the return cold air and guides it to the blast pipe (30).

To explain an example of this ventilation chamber (13), the base (11)
The earthen walls of the ventilation room (13) are made up of turntables (44), which serve as display plates and also serve as product placement boards, located on two sides of the A through hole (43) that penetrates a cold air blowing tower (41) to be described later.
), and is rotatably held on a partition plate (45), which will be described later, with an appropriate number of ribs (60) standing upright, and is molded from a translucent member, such as a milky white resin. (16) has a hollow cold air blowing tower (41) formed with a large number of cold air blowing holes (40) on the circumferential surface and extending into the product storage section (12); ), which forms a vortex chamber (16a) in which the cold air introduced from the cold air inlet (42) provided on one side is sequentially swirled toward the center and guided into the cold air blowing tower (41). This vortex chamber (16a) is an abbreviation of a ventilation bottom plate (47) which has a circle with a diameter larger than the diameter of the transparent glass (15B>) and can be placed directly above the transparent glass (15B> with a slight interval between them). 37 in the center
A first standing wall (48A) corresponding to 4 circumferences and a second standing wall (48B) eccentrically communicating with the remaining 174 circumferences and tapering toward the cold air inlet (42) are erected to create a dual wall. (48A)
(48B>) Covering the upper surface opening, the upper plate (29) provided with the cold air blowing tower (41) can be disposed.

Here, the cold air completely introduced from the cold air inlet (42) is directed along the second vertical wall (48B), moves to the center while sequentially turning along the first vertical wall (48A), and is sent to the cold air blowing tower. <
The cold air is guided into the cold air blowing tower (41) from the lower end of the cold air blowing tower (41), ascends while rotating inside the blowing tower (41), and is sequentially discharged in a spiral form from the cold air blowing holes (43).

In addition, the cold air return section (17>) includes an interval (
The return cold air is sucked in from H), and the return cold air is supplied to the first vertical wall (48A) and the second vertical wall (48B) of the cold air supply section (16).
The air is guided to a return cold air outlet (62) arranged in parallel with the cold air inlet (42), and is led out to a return tube (32> of the blast pipe (30), which will be described later).

The turntable (44), partition plate (45), and other members constituting the cold air supply section (16) and the cold air return section (17) are each made of a translucent material, such as a transparent or milky white resin. Form it.

The illumination chamber (14) is formed into an annular shape with a diameter smaller than the diameter of the circle of the transparent glass (15B), and includes an illumination lamp (46), which forms part of the illumination device, such as a round fluorescent lamp (46), which is an abbreviation for the main body (IIA). The fluorescent lamp (46) illuminates the wooden body (I).
IA) and the product storage section (12). In addition, as the transparent glass (15B), a multi-layer transparent glass is used, in which a plurality of pieces (three pieces in this example) are arranged in parallel with an interval between them, to provide heat insulation with an air layer and to provide light transmission. I have it.

On the other hand, the product storage section (12) is surrounded by a hood (50) as a see-through member which has a substantially hemispherical shape and is made of a see-through material such as transparent resin, and this hood (50) is surrounded by a hinge portion (51). ) is rotatably attached to the base (11>).The product storage section (12) is opened and closed by rotating the hood (50).Furthermore, the entire lower end of the hood (50) A sealing member (52
) is placed in advance. Then, on the turntable (44), a container (
This is referred to as a beverage container (53) is placed on the product storage section, and the beverage container (53) is cooled and displayed while being cooled by cold air blown out from the cold air supply section (16).

On the other hand, the blow pipe (30) has one end connected to the cold air outlet (27>
a supply cylinder (31>) whose other end is connected to the cold air population (42>) of the cold air supply section (16) and which adiabatically circulates the cold air;
From a return cylinder (32) through which the return cold air flows, with one end connected to the return cold air intake port (28) and the other end connected to the return cold air outlet (62) of the cold air return section (17). Preferably, both cylinders (31) and (32) are configured to be bendable and expandable.

As described above, according to the present invention, the cold air blowing tower (41>) extends into the product storage section (12), and a large number of cold air blowing holes (40>) are formed on the peripheral side of the tower. The cold air can be evenly blown out inside the storage section (12), and the inside of the storage section (12) can be cooled uniformly.In addition, since the cold air can be introduced into the cold air blowing tower (41) while swirling, the cold air blowing hole (41) can be evenly cooled.
The cold air emitted from the hole (40) can also be emitted in a rotating direction rather than in the normal direction to the hole (40), increasing the amount and time of contact with the product (53) for sale. The cooling efficiency of (53) can be increased and cooling can be performed more quickly. Furthermore, product storage section (12)
Since the cold air blown inward moves while swirling, the return cold air is also swirling and collected into the cold air return section (17).
The cold air can be efficiently guided to the return cold air outlet (62). Since the hood (50) is formed into a hemispherical shape, the cold air blown out from the cold air blowing tower (41) can be smoothly directed downward. Therefore, the cold air introduced from the cold air inlet (42) is smoothly directed and rotated in the cold air supply section (16) of the ventilation chamber (13), while the cool air enters the product storage section (12).
The cold air is discharged into the interior, is smoothly directed downward, is discharged outside the product storage section (12), and is efficiently converged to the return cold air outlet (62) in the cold air return section (17). Then,
Overall cooling efficiency can be improved.

〔Effect of the invention〕

As detailed above, according to the present invention, the vortex chamber is provided in the ventilation chamber so that the introduced cold air sequentially swirls and enters the cold air blowing tower, so that the cold air is extended into the product storage section. The cold air discharged from the cold air blow-off hole of the cold air blow-off tower can also be swirled, which lengthens the cold air transport path from the cold air blow-off hole to the return cold air suction section, increasing the amount of contact between the cold air and the products being sold, as well as the contact time. As a result, the cooling efficiency of the products and the product storage section can be improved.

[Brief explanation of the drawing]

Each figure shows one embodiment of the present invention. Figure 1 is a plan view showing the flow of cold air and return cold air in the ventilation room with the hood and top plate of the exhibition box removed, and Figure 2 is a diagram of the showcase. External perspective view of the unit installed in the display case, Part 3
The figure is an external perspective view of the showcase, and Figure 4 is A- in Figure 2.
A sectional view, Figure 5 is an external perspective view showing the flow of cold air in the display box, Figure 6 is a side view showing the display box with sales products stored in it, Figure 7 is an exploded perspective view of the display box, and Figure 7 is an exploded perspective view of the display box. FIG. 8 is an exploded perspective view of the machine box. (1) Separate showcase, (1o)
...Display box, (11)...Base, (12)...
Product storage section, (13)...Ventilation room, (14)...
Lighting room, (16)...Cold air supply section, (16a)...
... Vortex chamber, (17) ... Cold air return section, (20) ...
Machine box, (30)...Air pipe, (4o)...
Cold air blowing hole, (41)...cold air blowing tower, (42)
...Cold air inlet, (44)...Turntable, (
45)...Partition plate, (47)...Ventilation bottom plate, (
48A)...First standing wall, (48B)...Second standing wall, (49)...Top plate, (62)...Return cold air outlet.

Claims (1)

[Claims] 1. A product storage section surrounded by a see-through member that can be opened and closed is formed at the top, a base with a ventilation chamber is provided below the product storage section, and approximately in the center of the product storage section there is a base that is surrounded by a transparent member that extends upward from the bottom. A hollow cold air blowing tower extending from the outside and having a large number of cold air blowing holes formed on the circumferential surface is disposed, and the ventilation chamber is located directly below the cold air blowing tower and communicates with the lower end of the cold air blowing tower on one side. 1. A showcase characterized in that a swirl chamber is provided so that cold air introduced from the inside of the tower sequentially swirls around the center and enters the inside of the cold air blowing tower.