JPH06288668A - Open refrigeration show case system - Google Patents

Abstract

PURPOSE:To make it possible to reduce a dead space of a show case as much as possible and enhance utilization efficiency of a building and improve the show case as a cooling system as well. CONSTITUTION:An open refrigeration show case system which includes a plurality of open refrigeration show case used in such shops as a convenience store or a supermarket is provided with a dust 4 which is installed to the upper part of a case 2 and connected to supply cooled air to each of open spaces 11 from the upper part of each and a cooling cycle which is laid out in the upper of the cases 2 in a shop chamber and which is capable of supplying a required amount of cooled air to every case in the system by way of the duct 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open refrigeration showcase system used in a store such as a convenience store or a supermarket, and in particular, makes it possible to use the space to the maximum efficiency in a limited building space. Open frozen showcase system.

[0002]

2. Description of the Related Art Open frozen showcases used in stores such as convenience stores and supermarkets have about 10 units for small stores and 5 units for large stores.
The level is 0 and 100. Conventionally, when the number of cases is small, a commercially available case which has all of the cooling system in itself is used. On the other hand, when the number of cases is large, a large compressor and condenser are installed in a machine room of appropriate size, while an expansion valve and an evaporator are installed in each case, and piping is installed between them. And connected to form a cooling system.

[0003]

When commercial cases are used as the above-mentioned individual cases, they cannot be placed at the positions of columns existing at regular intervals on the outer wall of the building frame. Therefore, in order to allow the position of the pillar to escape, all the cases were put out in the direction of the passage space, or the position of the pillar was made to be a space. The commercially available case is generally expensive, and the cooling efficiency is poor as a cooling system, and it is not preferable that there is a so-called dead space in the building space that does not contribute to the sale of the product. Furthermore, in the commercial case,
The cooling system is arranged in the lower part of the case, and the space is a so-called dead space where the products cannot be displayed. In recent years, under the demand for effective use of space, even the dead space below the open refrigeration showcase system has a size that cannot be ignored in cases of 5 cases and 10 cases. Or you should add more open frozen showcase systems.

On the other hand, in a system in which a large compressor and a condenser are installed in a machine room and a refrigerant is connected to each case by piping, long and complicated piping must be provided inside and outside the building and It has a drawback that the space cannot be effectively used for the number of rooms. In addition, maintenance is difficult for pipelines that are too long in terms of maintenance, and since expansion valves and evaporators must be installed in individual cases, the probability of failure also increases and the probability of failure in each case increases. It was difficult to control the temperature of cold air.

[0005]

In view of the above-mentioned drawbacks of the prior art, the present invention comprehensively looks at a building, reduces the so-called dead space as much as possible to improve the utilization efficiency of the building, and improves the efficiency as a cooling system. The object is to provide an open refrigerated showcase system that can be used.

[0006] The present invention is an open frozen showcase system including a plurality of open frozen showcases used in stores such as convenience stores and supermarkets. A duct connected to supply cold air to each open space; and located above the open refrigerated showcases in the store room and through the ducts, the required amount of cool air for all open frozen showcases in the system And a cooling cycle capable of supplying

[0007]

In the open refrigeration showcase system of the present invention, the cooling air required for a plurality of open refrigeration showcases is supplied by one large cooling system, so that the cooling efficiency is much better than that of the commercial case. .

Further, such cold air is supplied to the individual open frozen showcases through the duct from above. Thereby, in each open frozen show case, an empty space can be created at the bottom of the case. This empty space can be a deep bucket by extending the bucket to the very limit of the floor surface, or can be a stock space below the bucket for storing items that do not need cooling. Further, since the cool air is supplied to the open frozen showcase by the duct whose arrangement, size, etc. can be freely changed, the case can be formed by making the position of the pillar concave.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An open refrigeration showcase system according to the present invention will be described in detail below with reference to the drawings.

1 and 2 are a plan sectional view and a front view of an embodiment of an open refrigeration showcase system according to the present invention.

As shown in the drawings, the open refrigeration showcase system according to the present invention is schematically arranged in a plurality of cases 2 and an upper part of each case 2, and the open spaces are provided from above the respective cases. A duct 4 connected to 11 to supply cool air, and a cooling cycle 24 arranged above the case in the store room and capable of supplying a required amount of cool air to all cases in the system via the duct. Contains.

Referring to FIG. 3, the case 2 is shown at a cross-sectional position along the line AA of FIG. The case 2 has a smaller depth than the other cases 2, for example, the case 2 at the cross-sectional position along the line BB in FIG. In the illustrated embodiment, the depth of the case 2 as a whole is narrowed to match the pillar 6 of the building frame, but it is also possible to make only that portion concave. Referring to FIG. 4, a typical case 2 is shown installed without pillars 6. The case 2 in FIG. 4 has a housing 10 made of a heat insulating material. The housing 10 encloses both side surfaces, an upper surface, a back surface, and a lower surface of an open space 11 for storing products, and only a front surface facing a customer in a store is open. Housing 10
An inner housing 12 is installed inside the. The inner housing 12 includes a plurality of display shelves 14 and buckets 16.
And have. The bucket 16 is a space for storing heavy items such as milk and fresh juice and bulky items such as cabbage and Japanese radish, and is a deep bucket that extends to the very limit of the floor and has a large storage capacity. As a result, many commodities can be cooled at one time, and since the commodities are relatively at hand, even heavy ones can be easily taken.

A narrow space is formed between the housing 10 and the inner housing 12 to reach the lower front portion, the bottom portion, the rear portion, and the upper portion of the case. This is the bucket 1.
Circulation path 1 that guides the cold air accumulated in 6 above the open space 11 and sprays it again from the upper part of the open space 11.
Play the role of 8. A fan 20 is installed in the circulation path 18, whereby the cool air is forcedly circulated in the circulation path 18 and the open space 11. In the illustrated embodiment, the housing 10 is higher than the inner housing 12 at the lower front of the case, and thus
The cool air is sucked into the circulation path 18 without escaping to the outside of the case.

In the preferred embodiment shown, the fan 20 is installed in the upper part of the case in order to allocate as much space in the lower part of the case as possible to the bucket 16, but in the case of a small fan, it may be placed in other positions. It can also be installed. Similarly, the circulation path 18 may be pipe-shaped to substantially eliminate the gap between the housing 10 and the inner housing 12 except for the upper part of the case, or the inner housing 12 may be omitted. it can.

A machine space 22 is installed above the case 2 inside the store room in a heat-insulated state for each case 2 and open to the outside of the store. Within the machine space 22, the typical components of the refrigeration cycle are located and supply the required amount of cold air. The upper space of the case 2 in the store room can be a relatively large space because it has no other use, and the cooling cycle can be made relatively large to save energy. Also, machine space 2
The waste heat generated in 2 can be used as a heat source for indoor heating, or can be adjusted so as to be directly discharged to the outside of the store.

Cold air supplied from the cooling cycle in the machine space 22 is sent to the case 2 through the duct 4. A throttle valve 4a is provided at the connecting portion of the duct to the case 2, and a temperature sensor is installed in the open space 11 of the case 2. And by suitable control means
It is preferable to adjust the amount of cold air circulated through the circulation path 18 and the amount of cold air newly supplied from the duct 4 to obtain a desired cold air temperature. The former is performed by driving the fan 20, and the latter is performed by the throttle of the throttle valve 4a. Note that the embodiment of FIG. 3 does not include a configuration in which cool air is circulated through the circulation path 18, so that the temperature in the open space 11 of the case 2 is adjusted only by adjusting the throttle valve 4a. .

Referring to FIG. 5, there is shown another embodiment of the open frozen showcase used in the open frozen showcase system according to the present invention.

In the embodiment of FIG. 5, the bucket 26 is a relatively shallow bucket similar to the conventional open refrigeration showcase system, but below it is a stock space 28 for accommodating items that do not require cooling. 4 is different from that of FIG.

Next, the flow of cold air in the open refrigeration showcase system according to the present invention will be described.

Cold air is produced by the cooling cycle in the machine space 22 and is sent to each case 2 through the duct 4. A throttle valve 4a is provided at the connecting portion of the duct to the case 2, and in actuality, an amount is supplied to the case 2 in an amount according to the degree of the throttle. Meanwhile, bucket 1
The cool air accumulated in the inside of the case 6 and 26 enters between the housing 10 and the inner housing 12 from the lower part of the front surface of the case, and
It is guided to the upper side of the open space 11 through 8.
The blow of the cool air is performed by the fan 20 installed in the circulation path 18. The amount of cold air to be supplied to each case 2 is determined by, for example, installing a temperature sensor in the open space 11 of the case 2 and determining a new amount of cold air that circulates through the circulation path 18. It is decided by calculating the extent of supply.

[0021]

In the open refrigeration showcase system of the present invention, a duct is provided on the top of each open refrigeration showcase and connected so as to supply cold air from above each case to each open space, And, since it has a cooling cycle which is arranged above the open frozen showcase in the store room and can supply the required amount of cold air to all the open frozen showcases in the system via ducts, the pillar of the building frame There is no dead space at the position of, the dead space at the bottom of the open refrigerated showcase, and there is no need to secure a separate machine space. As a result, the use efficiency of the building can be maximized.

Further, in the open refrigeration showcase system of the present invention, the cooling air required for a plurality of open refrigeration showcases is supplied by one large cooling system, so that the cooling efficiency is significantly higher than that of the commercial case. Get better

[Brief description of drawings]

FIG. 1 is a plan sectional view of an embodiment of an open frozen showcase system according to the present invention.

FIG. 2 is a front view of the open frozen showcase system of FIG.

FIG. 3 A of the open refrigeration showcase system of FIG.
FIG.

FIG. 4B of the open frozen showcase system of FIG.
It is a -B line sectional view.

FIG. 5 is a vertical cross-sectional view of another embodiment of the open frozen showcase used in the open frozen showcase system according to the present invention.

[Explanation of symbols]

 2 Case 4 Duct 10 Housing 11 Open Space 12 Inner Housing 16,26 Bucket 18 Circulation 20 Fan 22 Machine Space 24 Cooling Cycle 28 Stock Space

Claims (5)

[Claims] 1. An open frozen showcase system including a plurality of open frozen showcases used in a store such as a convenience store or a supermarket, the open frozen showcases being arranged above the open frozen showcases. A duct connected so that cold air can be supplied to the open space; cooling that is placed above the open refrigeration showcase in the store room and can supply the required amount of cold air to all open refrigeration showcases in the system via the duct Open refrigeration showcase system with cycle; 2. The open frozen showcase system according to claim 1, wherein the open space below each open frozen showcase is a bucket for storing deep cold air that extends to the very limit of the floor surface. An open frozen showcase system characterized by increasing the product storage capacity of the case by storing the product in the case. 3. The open refrigerated showcase system according to claim 1, wherein the open space of each open frozen show case is a bucket for storing cold air of a normal depth, but below the bucket. An open refrigeration showcase system characterized by being used as a stock space for storing items that do not require cooling. 4. The open refrigeration showcase system according to claim 1, further comprising: a throttle valve installed at a connecting portion of the duct to each open refrigeration showcase, and a new supply from the duct. And a control means for adjusting the amount of cold air to obtain a desired cold air temperature; 5. The open refrigeration showcase system according to any one of claims 1 to 3, further comprising a circulation path with a fan for guiding the cool air accumulated in the lower part of the case to the upper part of the open space and spraying it again from the upper part of the open space. A desired amount of cold air by adjusting the throttle valve installed at the connection part of the duct to each open refrigeration showcase, and the amount of cold air circulated through the circulation path and the amount of cold air newly supplied from the duct. An open-frozen showcase system, further comprising: control means adapted to obtain temperature.