JPH0289977A - Freezing showcase - Google Patents

Abstract

PURPOSE:To form a temperature area in accordance with the kind of cold cake in any arbitrary division by a method wherein cold air forced convection type cooling system is employed, partitioning members are attached detachably and the position of the arrangement of the partitioning members is changed in accordance with the kind of the cold cake filled into vessels. CONSTITUTION:A preservation chamber 16 is divided into areas of desired number and partitioning members 40 are arranged properly in the preservation chamber 16 so as to permit temperature control in accordance with the kind of cold cake. The flow rate of cold air, flowing into a supplying passage 11B, is regulated so as to be divided into two parts flowing into a main cold air flow passage and an auxiliary cold air flow passage by the existence of a flow rate regulating plate. In this case, the main cold air flow passage in the preservation chamber is divided into two areas by the partitioning member 40 and, therefore, the cold air flows into an area A through first and second air outlet ports 22, 24 while the cold air flows into an area B through only the second air outlet port 24. The flow rate of the cold air flowing into the area B becomes smaller than the same flowing into the area A and, therefore, the area B is maintained at a higher temperature as compared with the area A. Accordingly, a plurality of areas having different temperatures respectively may be formed in the preservation chamber 16.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] Industrial Field of Application The present invention relates to a cold forced convection type refrigerating showcase suitable for storing frozen desserts such as ice cream and sherbet.

Conventional Technology In so-called dipping cases, frozen desserts such as ice cream and sherbet are placed in containers with a predetermined capacity (for example, 4P or 10P) and scooped out in appropriate amounts individually using a scooping member such as a dipping device and sold. The common method of cooling storage rooms was to use natural convection of cold air. The container was displayed in the storage room in 1986.
There is a publication No. 0-18120. According to this display device,
Not only can containers of the same shape filled with different amounts of food be displayed, but also containers with different opening areas can be displayed.

Problems to be Solved by the Invention However, in the storage chamber of the dipping case as exemplified in the above-mentioned publication, although each product can be displayed individually, the overall temperature is kept in a substantially concave temperature range. Therefore, even though there is a difference in the temperature at which it is easy to scoop and the temperature suitable for storage between ice cream and sherbet, the temperature is controlled in a temperature range that is suitable for either product, and the temperature is There have been problems with temperature control, such as products that are difficult to remove, and products that have significant quality deterioration depending on the type of product.

Therefore, the present invention adopts a cold air forced convection cooling method,
An object of the present invention is to provide a refrigeration showcase configured to form a plurality of temperature regions by varying the flow rate of cold air.

[Structure of the invention]

Means for Solving the Problems The present invention provides a frozen showcase for solving the above-mentioned problems, which includes a container with an opening at the top filled with frozen desserts stored in a storage chamber formed inside an insulated box main body. A forced cold air circulation type cooling system with a main cold air flow path flowing along the sides and an auxiliary cold air flow path flowing along the top surface of the container is adopted, and the flow rate of cold air flowing per unit time in the main cold air flow path is different. A removable partition member is provided to partition the area into a plurality of areas.

Since the main cold air flow path, which flows in large quantities along the side surface of the working container, is partitioned into regions with different cold air flow rates by the partition member, it functions to maintain the temperature range based on the amount of cold air flowing in each region, Moreover, since the partition member is removable, it is possible to set and define areas at arbitrary positions and ranges, and it has the effect of facilitating the freezing preservation of different types of frozen desserts in different temperature zones.

EXAMPLES The present invention will be described in detail below based on the drawings. (1) shown in Figure 2 is a face-to-face sales type frozen showcase called a dipping case, which consists of an insulated box body (2) with an open top, and transparent plates (2) on the customer side, that is, the front and top surfaces. 3)
(4), an opening (5) for handling products on the sales side, that is, the back side, and a transparent door (6) for freely opening and closing this opening (5), respectively, and A lid body (7) disposed at the top opening and a machine room (8) which houses and installs a compressor, a condenser, a blower device (none of which are shown), etc. ).

(10) is a metal partition plate having a U-shaped longitudinal section and having front left and right walls and a bottom wall disposed at an appropriate interval from the inner surface of the front and rear walls of the insulation box body (2); A cold air passage (11) is formed on the outer periphery of both front walls of the plate (10) and under the bottom stiffener, and a plate fin type cooler (12) is provided below the bottom wall.
) and a cooling room equipped with an axial blower (13), etc.
A storage chamber (16) is formed inside which stores a plurality of containers called bats (hereinafter referred to as bats) (15) filled with frozen desserts such as ice cream and sherbet.

A fixing device (17) for orderly and efficiently aligning and fixing a plurality of bats (15) is disposed above the storage chamber (16). The rose l-(15) is made of a material with excellent water resistance, for example, corrosion-resistant steel such as stainless steel, and has an inverted trapezoidal shape and has a filling part (18) with an opening on the top for filling the frozen dessert, and a filling part (18) around this filling part. It has a flange portion (19) which is provided horizontally and engages with the fixing device (17), and the end portion of the flange portion (19) is bent downward over the entire circumference for protection. In addition, since the flange portion of each bat is placed on the fixing device (17) with the long sides or short sides of the flange portions of adjacent bats in contact with or very close to each other, the flange portion (19) and the fixing device (17) is located in the storage chamber (1
6) functions as a partition plate that vertically partitions the space above and below the fixing device.

Partition plate (10) + 7) Front wall (IOA) and back wall (IOB
) has a first suction inlet (21) and a first outlet (22) at portions corresponding to the gaps formed between the sides of the bat when the bat (15) is fixed to the fixing device (17).
), and this first suction port (21)/first
The first suction port (2) is located at an appropriate interval lower than the air outlet (22).
1) and a second suction port (not shown) and a second air outlet (24) having a smaller opening area than the first air outlet (22). The cold air passage (11) includes a return path (IIA) on the outer periphery of the front wall of the partition plate (10), a cooling chamber (14) below the bottom wall, a supply path (IIB> on the outer periphery of the back wall), and a storage chamber (16). The gap between the top surface and the sides of the bat, and the bottom surface of the bat and the partition plate (
1o). Supply channel (II
B) A landscape adjustment plate (30) is installed above the inner Suita mouth (22) to adjust the flow rate of cold air upwards, and a fixed bat ( 15
) is formed with an upper surface air outlet (31) opened in the horizontal direction so that cold air flows horizontally through the two surfaces of the air conditioner. The air volume adjustment plate (30) is connected to the first air outlet (22) formed on the back wall (IOB).
) and the flow rate of cold air blown into the storage room from the second outlet (24) and the flow rate of cold air blown out from the top outlet (31) are divided at a certain ratio, for example, about 7:3, so that the former is larger. The opening area is set so that On the other hand, a top suction port (32) is formed at the top of the return path (IIA) to collect the cold air blown out from the top Suita port (31). A heat insulating wall (33) made of a heat insulating material is provided on the lower surface of the bottom wall (10C) of the partition plate (10),
In order to prevent the thermal influence of warm air during defrosting from 2) from being transmitted to the storage room side, and to prevent this warm air from flowing into the supply path (IIB) and return path (IIA), there is a It forms a hanging part (33B>(33A)).

Below the blower (13) of the cooling room (14) is a storage room (
16) Items that cannot be stored in the bag or a vat for replenishment (15)
A storage room (35) is formed for storing the cooling room (35), but a heat insulating wall (36) is provided on the upper surface of the storage room (36) so as not to directly receive cold air from the blower (13) in the axial direction. 1
A part of the cold air leaving the storage room (4) passes through the communication hole (37) and enters the storage room (
35). (3g) is an elongated branching plate that divides the cold air sent out from the cooling chamber (14) into one direction toward the supply path (IIB) and the other toward the communication hole 37).

Generally, the storage chamber (16) stores vats filled with different types of frozen desserts, such as vats filled with ice cream and vats filled with sherbet. It is not possible to manage the storage room (16) in a way that corresponds to all the different optimal storage temperatures. Therefore, it is possible to divide the inside of the storage room (16) into a desired number and areas so that the temperature can be controlled in accordance with the types of frozen desserts. For this purpose, a partition member (40) is appropriately disposed within the storage chamber (16).

This partition member (40) is shown schematically in FIG. 4, and as shown in FIGS. 1 and 3 as examples of its arrangement.
A partition part (41) that partitions adjacent bats in the left-right direction into different areas when arranged in the front-back direction of the partition part (41);
Legs (42>) are formed at the lower end of the partition to hold the partition (41) vertically, and first suction ports (41) are provided at both ends of the partition (41).
21) and a baffle plate portion (43) formed to close part or all of the first air outlet (22), and can be disposed at any position in the front and back direction of the storage chamber (16). It is possible. In addition, the first suction port (21) and the first air outlet (
22) are formed at corresponding positions in the front-rear direction, the baffle plate portions (43) are formed in the same direction so as to close the corresponding suction ports and blow-off ports. (The bat fixing device (17) shown in this example is configured so that the long sides of the bats are parallel to the front and back direction of the showcase so that two bats can be arranged in the front and rear.) As shown in FIG. According to the partition member (40) disposed in the bat (15) (
15) is partitioned into a separate area from other bats, and cold air does not flow into the area where these two bats are located from the first outlet;
Since only the cold air from 31) will flow in, the flow rate of cold air flowing into the area will be lower than that of other areas, and the wind speed will also be weaker than that of other areas, resulting in the temperature being maintained higher than that of other areas. It will be done. Therefore, in this example, temperature control is performed to maintain the temperature at a temperature that matches the frozen dessert with the lowest optimal storage temperature, and the partition member (40) is used for vats filled with frozen desserts that have an optimal storage temperature higher than this temperature. The vat filled with the frozen dessert having the lowest optimum storage temperature is placed in a separate area. In addition, this partition member (40
) is placed in the desired position before fixing the loose l-(15) to all of the fixing devices (17), so its presence cannot be confirmed from the top of the storage chamber after the bat is fixed. It is.

In addition, since the flange portion (19) and the fixing device (17) of each bat (15) function to partition the storage chamber (16) into upper and lower parts, the cold air flow (mainstream) flowing along the side of the bat The cold air flow (side flow) flowing along the upper surface of the vat does not merge in the storage chamber (16), that is,
The internal cold air currents can cool the vat and the frozen confectionery with mutually independent flows, and in particular, a side stream with a small flow rate and a slow speed can be well formed without being affected by the main stream.

Next, cold air circulation will be explained based on solid line arrows and dotted line arrows in FIG. It is assumed that the refrigerating showcase (1) is in a cooling operation, and the interior of the storage chamber is partitioned into two temperature ranges by a partition member (40) as shown in FIG.

The air that has been heat exchanged and cooled by the cooler (12) (this is called cold air) is sent out of the cooling room (14) by the blower (13), and is sent to the supply path (IIB) and the air by the branch plate (38). The cold air flowing into the supply channel (11B) is divided into two directions (the ratio of the divided flow is 9:1, so that most of the flow flows into the former). Due to the presence of the air volume adjustment plate (30), the flow path on the opening side provided on the back wall, that is, on the first and second outlet (22) and (24) side, in an appropriate ratio (in this example, a ratio of 7:3), that is, the main cooling The air volume is adjusted between the air flow path and the opening provided on the upper surface, that is, the flow path on the upper surface Suita outlet (31) side, that is, the auxiliary cold air flow path. Since the area is divided into two areas [area A and area B shown in FIG. m, /
s), cold air will flow into region B only from the second outlet (24). Since the flow rate of cold air flowing into region B is smaller than that in region A, region B is maintained at a higher temperature than region A (in this example, region A
At temperatures below 115°C, region B was formed at around 113°C). Therefore, a plurality of different temperature zones (in this example two temperature zones) can be formed within the storage chamber (16).

On the other hand, the cold air blown out horizontally onto the top surface of the storage chamber through the top air outlet (31) flows along the top surface of the partition member (40) without being affected by the flow, and flows onto the surface of the frozen confectionery. (in this example, the surface temperature is -12°)
The wind speed was maintained at around C and the wind speed was around 0.6 m/s)
The cool air is guided to the top suction port (32), joins with the cold air coming out of the storage room in the return path (IIA), and flows into the cooling room (14).
) and passes from the negative side of the cooler (12) to the opposite side, where heat exchange is completed and recooling is completed.

On the other hand, the cold air heading toward the communication hole (37) is guided to the upper surface of the storage chamber (35) through the communication hole (37), and cools the upper surface of the bat, that is, the surface and side surfaces of the frozen desserts that have been completely stored in the storage chamber (35). The cold air return port (39) formed at the front end of the insulation wall leads to the lower surface of the cooler (12), where it is re-cooled in the cooler (12), where it merges with the cold air from the side of the cooler (12). can be completely guided to the blower device (13) side. In addition, since the air volume and wind speed of the auxiliary cold air channel are smaller than the air volume and wind speed of the main cold air channel, the surface of the frozen dessert may become too cold and become hard to scoop, or it may dry out and cause quality deterioration. You can prevent it from becoming difficult to eat.

〔Effect of the invention〕

As described in detail above, according to the present invention, regions with different cold air flow rates can be formed in the main cold air flow path by arranging the partition member, so that different temperature regions can be created in the storage room due to the different cold air flow rates. Since the partition member is removable, by changing the position of the partition member according to the type of frozen dessert filled in the container, a temperature region corresponding to the type of frozen dessert can be formed in any area. At this time, the top surface of the container, that is, the surface of the frozen dessert, can be completely cooled by the auxiliary cold air flow path regardless of the arrangement of the partition member, and the surface of the frozen dessert can be cooled by the radiant heat outside the refrigerator and from the lighting section, as well as the intrusion of outside air from the opening of the door. It no longer tends to become soft, and the temperature at which it is easy to skim the surface of the frozen dessert and the temperature at which it is said to be ready to eat (-12°C to -1
(approximately 5°C).

4. Brief description of the drawings ωEach figure shows an embodiment of the present invention, and FIG. 1 is a sectional view taken along line A-A of FIG. J is a longitudinal sectional view of the frozen showcase, FIG. 3 is a BB sectional view of FIG. 2, FIG. 4 is an external perspective view of the partition member, and FIG. be.

(1)...refrigerated showcase, (2)...insulation box body, (11)...cold air passage, (15)...bat (container), (16) storage room, (21)...・First
Suction port, (22>...first outlet, (24)...
・Second air outlet, (30)...Air volume adjustment plate, (40
)...Partition member.

Claims (1)

[Claims] 1. It has a main cold air flow path that flows along the side surface of a top-open container that is stored in a storage chamber formed in the insulated box body and is filled with frozen desserts, and an auxiliary cold air flow path that flows along the top surface of the container. A refrigeration showcase of forced cold air circulation type, characterized in that a removable partition member is provided for partitioning the main cold air flow path into a plurality of regions having different flow rates of cold air per unit time.