JPH04288467A - Cold air circulating type open showcase - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention is a cold storage refrigerator generally referred to as a semi-multi-stage type, in which the product removal opening of the approximately U-shaped main case opens diagonally upward in the front, and the interior is partitioned into upper and lower multiple stages by shelves. Regarding the circulating open showcase.

0002

2. Description of the Related Art An open showcase of this type shown in FIG. 3 is known. In the figure, a main body case 1 having a substantially U-shaped cross section is composed of an outer box 2 and an inner box 3, each having a heat insulating wall, and has an opening 1a for taking out a product diagonally upward at the front surface. The interior 4 formed inside the inner box 3 is divided into upper and lower parts by shelves 5, and a ventilation passage 6 formed between the outer box 2 and the inner box 3 has a fan 8 and a cooler 9. will be placed. One end of the ventilation passage 6 has an air outlet 6a that opens obliquely downward at the upper end of the opening 1a, and an air conditioning fluid 10 is installed therein. The other end of the ventilation passage 6 is the lower end of the opening 1a and the air outlet 6a
A suction port 6b is formed opposite to.

[0003] In the open showcase, products are stored and displayed in the interior 4. The air inside the refrigerator is cooled by the cooler 9 by the fan 8, becomes cooling air, flows through the ventilation passage 6, and is blown out from the outlet 6a toward the suction port 6b, creating a cold air curtain 11 that blocks the interior 4 of the refrigerator from outside air. At the same time, the product is cooled and kept cold.

0004

[Problems to be Solved by the Invention] Conventional semi-multi-tiered open showcases are constructed so that customers can easily view and take out products by opening the opening 1a diagonally upward, but on the other hand, the blowing direction is directed diagonally downward. In order to form the air outlet 6a, the air outlet 6a protrudes downward, reducing the space inside the warehouse that can be effectively used, and sometimes reducing the number of shelves 5 installed, resulting in a reduction in the number of products displayed. Ta. Furthermore, several types of open showcases are manufactured with different heights, and in each case, the blowing angle of the cooling air is different. As a result, each part forming the air outlet 6a had to be manufactured separately for each open showcase having a different height, making management of the parts extremely troublesome.

[0005] The purpose of the present invention is to provide a cold air circulation type open showcase that can increase the volume that can be used effectively in the refrigerator compared to the conventional one, and can use common air outlet parts for open showcases of different heights. shall be.

[0006]

[Means for Solving the Problems] In order to achieve the above object, according to the present invention, the main body case is provided with a main body case having a substantially U-shaped cross section in which the opening for taking out the product opens diagonally upward in the front, and the air inside the refrigerator is circulated. In the cold air circulation type open showcase that blows out a cold air curtain from the opening and cools the interior of the refrigerator, the outlet of the cold air curtain is provided in the ceiling of the interior of the refrigerator and faces forward near the back wall. , A wind direction plate is installed at the front end of the ceiling in the refrigerator for changing the air flow from the outlet in an obliquely downward direction.

[0007]

[Function] The air outlet opens toward the front near the back wall of the refrigerator, so there is little protrusion into the refrigerator, and the front part of the refrigerator is not obstructed, greatly increasing the effective usable volume inside the refrigerator. increase Furthermore, since the direction of the cold air curtain can be set by the mounting angle of the wind direction plate, the air outlet parts can be made common to open showcases of different heights.

[0008]

[Example] Figure 1 shows an example of this invention, and Figure 3
Common or identical parts are indicated by the same reference numerals. In FIG. 1, the air outlet 6a is provided along the back surface of the inner box 3 on the back wall of the chamber interior 4 and opens straight forward. Reference numeral 15 denotes a wind direction plate provided at the front end of the ceiling of the refrigerator interior 4, which is inclined at an appropriate angle so as to guide the cold air blown out from the outlet 6a toward the suction port 6b.

[0009] In the above-mentioned structure, the open showcase is configured such that the air inside the refrigerator is sucked into the ventilation passage 6 from the suction port 6b by the fan 8, and is cooled by the cooler 9 to become cooling air and is blown out horizontally from the air outlet 6a forward. be done. This cooling air changes its direction toward the suction port 6b by the wind direction plate 15, forming a cold air curtain 11 at the opening 1a, and a part of the cooling air flows through the inside of the refrigerator 4 to cool and keep the inside of the refrigerator cold. On the other hand, since the air outlet projecting diagonally downward is eliminated, there is no need to reduce the number of shelves 5, and almost the entire volume of the interior 4 can be used for displaying and storing products. Furthermore, open showcases with different heights and different blowout angles of the cold air curtains 11 can be accommodated by changing the inclination angle of the wind direction plate 15. Therefore, the constituent parts of the air outlet 6a are standardized and parts management becomes easy.

Another embodiment of the invention is shown in FIG. Figure 2
The open showcase of the embodiment forms a two-layer air curtain in the opening 1a, and the outer box 2 and the inner box 3 are partitioned at the center by a partition plate 16, and a ventilation passage 6 and a ventilation passage 7 are formed. is formed. At the bottom, fans 8 are installed, and the fan 8 is partitioned horizontally into a plurality of parts so that one communicates with the ventilation path 6 and the other communicates with the communication path 7. Cooling air cooled by a cooler 9 circulates through the ventilation passage 6, and the ventilation passage 7
uncooled air circulates. The lower end of each ventilation passage is the suction port 6b
and a suction port 7b, the upper ends of which are configured similarly to the embodiment of FIG.
to do. A wind direction plate 15 is installed in front of this air outlet. The cooling air blown out horizontally from the air outlet 6a and the non-cooled air blown out horizontally from the air outlet 7a are redirected by the wind direction plate 15 toward the air inlets 6b and 7b, and the cold air flows into the opening 1a. A protective air curtain 12 is formed outside the air curtain 11 and the cold air curtain, and the inside of the refrigerator 4 is efficiently cooled and kept cold. Further, in this embodiment as well, the air outlets 6a and 6b are provided straight forward along the back surface of the inner box 3, and the wind direction plate 15 is installed, thereby achieving the same effect as in the previous embodiment.

[0011]

[Effects of the Invention] According to the present invention, the main body case has a substantially U-shaped cross section with the opening for taking out the product opening diagonally upward in the front, and the air inside the refrigerator is circulated to form a cold air curtain at the opening. In the cold air circulation type open showcase that cools the inside of the refrigerator, the outlet of the cold air curtain is provided in the ceiling of the refrigerator facing forward near the back wall, and the outlet of the cold air curtain is provided at the front end of the ceiling of the refrigerator. By installing a wind direction plate that directs the airflow from the air outlet diagonally downward, the air outlet no longer protrudes at the front of the refrigerator, making effective use of the entire interior of the refrigerator and reducing the number of products displayed and stored. Furthermore, the air outlet components can be standardized and parts management can be facilitated.

[Brief explanation of the drawing]

[Fig. 1] A sectional view of an open showcase showing an embodiment of the present invention.

[Fig. 2] A sectional view of an open showcase showing another embodiment of the present invention.

[Figure 3] Cross-sectional view of a conventional open showcase

[Explanation of symbols]

1 Main body case 1a Opening 4 Inside the warehouse 6a　Air outlet 7a　Air outlet 15 Wind direction board

Claims (2)

[Claims] [Claim 1] A main body case having a substantially U-shaped cross section with an opening for taking out products opening diagonally upward in the front, and circulating air inside the refrigerator to form a cold air curtain at the opening and cooling the inside of the refrigerator. In the cold air circulation type open showcase, the outlet of the cold air curtain is provided in the ceiling of the refrigerator and faces forward near the back wall, and the air flow from the outlet is provided at the front end of the ceiling of the refrigerator. A cold air circulation type open showcase featuring a wind direction plate that changes the direction of the air to face diagonally downward. 2. A cold air circulation type open showcase comprising a main body case having a substantially U-shaped cross section with an opening for taking out products that opens diagonally upward, and in which an air curtain is formed in multiple layers in the opening. A plurality of air outlets for forming an air curtain are arranged vertically and facing forward in the ceiling of the refrigerator interior near the back wall, and a direction of the air flow from the air outlets is provided at the front end of the ceiling of the refrigerator interior. A cold air circulation type open showcase featuring a variable wind direction plate.