JPH0519884U - Around freezing / refrigerating open case - Google Patents

Abstract

(57) [Abstract] [Purpose] The interior of the showcase body, which has openings on the front and left and right sides, is divided into a product storage and a cold air circulation duct by duct plates, and the front and left and right sides are inside the cold air circulation duct. In the around-type freezer-refrigerator open showcase in which a cooler and a blower are arranged in correspondence with the openings of, if some of the coolers are defrosted and the remaining coolers are used for cooling operation, the cooling operation is in progress. This prevents the cool air from the cooler from flowing to the cooler during defrosting, thereby preventing a decrease in the blowout amount of the cool air and preventing an increase in the temperature inside the refrigerator. [Structure] The inside of the cool air circulation duct 15 is partitioned by a partition plate 12 from the rear of the coolers 4a to 4c to the upper part of the duct in correspondence with the openings 2 on the front and left and right sides, and the coolers 4a to 4c.
The air passages 15a to 15c isolated from each other are formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an around-type freezing / refrigerating open showcase, which is an open / refrigerating open showcase that always keeps the inside temperature at an appropriate temperature.

[0002]

[Prior Art]

 As shown in, for example, FIGS. 4 to 6, the around-type freezing / refrigerating open showcase has openings 2 for entering and exiting the product on the front surface and the left and right side surfaces of the showcase body 1 formed of a heat insulating wall. The inside of the case body 1 is partitioned by a duct plate 13 into a product storage 14 and a cold air circulation duct 15 which are connected to the opening 2. The interior of the cold air circulation duct 15 is further partitioned by another duct plate 16 for protection. Use airflow duct 3.

As shown in FIG. 5, coolers 4a, 4b, and 4c are provided in the cold air circulation duct 15 so as to correspond to the front and left and right openings 2, respectively, and to correspond to the front opening 2. The blowers 5a and 5a are provided with the blower 5b corresponding to the right opening 2, the blower 5c is provided corresponding to the left opening, and the blower 6 is provided inside the protective airflow duct 3 to cool the cool air. The ends of the circulation duct 15 and the protective airflow duct 3 are made to face the upper part of the opening 2 as the air outlet 7 and the lower part as the suction port 8. In the figure, 9 is a display shelf provided in the product storage 14, 10 is an illuminating lamp, and 11 is a back reinforcing material for supporting the showcase body 1.

In this way, the cool air cooled by the coolers 4a to 4c in the cool air circulation duct 15 is blown from the blower outlets 5a to 5c from the blower outlet 7 toward the suction inlet 8 to cool the cooler air to the opening 2. By forming the curtain A and cooling the inside of the product storage 14 with this, the airflow in the protective airflow duct 3 is blown by the blower 6 from the blowout port 7 toward the suction port 8 so that the cold air curtain A is cooled. A protective air flow air curtain B is formed on the outer side, and cold air in the product storage 14 is protected by these air curtains A and B. When defrosting the coolers 4a to 4c, the coolers 4a to 4c are alternately performed. For example, in order to defrost the cooler 4a on the front surface, the operation of the blowers 5a and 5a behind it is stopped. Then, this is done by stopping the flow of air to the cooler 4a.

[0005]

[Problems to be solved by the device]

 Since the coolers 4a to 4c and the blowers 5a to 5c are arranged in the same one cool air circulation duct 15, when the defrosting of each cooler 4a to 4c is performed alternately, the coolers are cooled in the cool air circulation duct 15. The cool air from the operating coolers, for example, 4b and 4c, bypasses and flows to the cooler 4a side during defrosting, and as a result, the amount of cool air from the blowout port 7 decreases and the temperature inside the refrigerator decreases. It may rise and it may become impossible to maintain the internal temperature at the set value.

The present invention solves the inconvenience of the conventional example, prevents the cool air from the cooler during the cooling operation from flowing to the cooler during defrosting, and prevents the temperature inside the refrigerator from rising during defrosting. It is to provide an around show freezer-refrigerator open showcase that can be prevented.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention divides the inside of a case body having openings on the front and left and right sides into a product storage and a cool air circulation duct which are connected to the openings by a duct plate. Around-type refrigeration is provided in which a cooler is installed corresponding to the front and left and right side openings, and the ends of the cold air circulation duct are positioned above and below the opening as the outlet and inlet of the cool air curtain. In the refrigerating open showcase, the inside of the cold air circulation duct is divided by a partition plate from the rear of the cooler to the upper part of the duct so as to correspond to the openings on the front and left and right sides. The main idea is to form air passages that are isolated from each other in each side opening.

[0008]

[Action]

 According to the present invention, since the inside of the cool air circulation duct is divided by the partition plates corresponding to the front opening and each of the left and right openings, the coolers corresponding to the front opening and each of the left and right openings are respectively separated by the partition plates. It will be partitioned by and will be installed in an independent air passage. As a result, for example, when defrosting the cooler corresponding to the front opening, the cool air from the coolers corresponding to the left and right openings during cooling operation does not flow to the cooler on the front opening side, The amount of cold air blown out from the chamber does not decrease, and the internal temperature can be maintained at a predetermined value.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Fig. 1 is a cross-sectional plan view of an arrow type freezing / refrigerating open showcase of the present invention, Fig. 2 is a longitudinal side view of the same, and Fig. 3 is an explanatory view of the same, which is the same as the conventional example shown in Figs. 4 to 5. The same reference numerals are given to the constituent elements of, and the basic structure of the showcase is the same as the conventional one.

Also in the present invention, the cooler 4a, 4b, 4c and the blowers 5a, 5a, 5b, 5c are provided in the cool air circulation duct 15 so as to correspond to the front opening 2 and the left and right side openings 2, respectively. The coolers 4a to 5c in the cool air circulation duct 15 are located between the blowers 5a and 5a to 5c behind the coolers 4a to 4c to the respective intermediate positions of the rising portions of the cool air circulation duct 15. 4c, that is, the front side opening 2 and the left and right side openings 2 are divided by partition plates 12 and 12 in the flow direction of the cool air, and the respective coolers 4a, 4b and 4c are alternately arranged. Separated and independent air passages 15a, 15b, 15c were formed.

Next, the operation will be described. During the cooling operation, the cool air cooled in the cool air circulation duct 15 by the operation of the coolers 4a to 4c and the blowers 5a and 5a to 5c is blown from the blowout port 7 toward the suction port 8, and the front and left and right side surfaces are opened. A cool air curtain A is formed on the part 2 to keep the inside of the product storage 14 cool. At the same time, the air in the protective airflow duct 3 is blown by the blower 6 from the air outlet 7 toward the air inlet 8 to form the protective airflow curtain B on the outside of the cold air curtain A, so that the outside air in the product storage 14 is protected. It blocks the intrusion and protects the cold air in the refrigerator together with the cold air curtain A.

Next, a case of defrosting the cooler 4a on the front opening 2 side will be described. In this case, the operation of the cooler 4a on the front opening 2 side is stopped, the operation of the blowers 5a, 5a behind the cooler 4a is stopped, and the flow of air to the cooler 4a side is stopped. Put in a state. As a result, the air sucked into the cool air circulation duct 15 by the blowers 5b and 5c from the suction port 8 flows into the coolers 4b and 4c on the left and right side surfaces, is cooled there, and is blown out from the blowout port 7. A cold air curtain A is formed in the opening 2. At this time, the cool air cooled by the left and right coolers 4b and 4c reaches the outlet 7 through the air passages 15b and 15c, which are independent by the partition plate 12, respectively. It does not flow to the cooler 4a, and the amount of cool air blown from the blowout port 7 does not decrease.

When defrosting the left and right side coolers 4b and 4c, contrary to the above, the coolers 4b and 4c are stopped and the front side cooler 4a is operated. Also in this case, the cool air cooled by the cooler 4a reaches the outlet 7 through the independent air passage 15a by the partition plate 12, and the inflow to the cooler 4b, 4c side during defrosting is performed by the partition plate 12. Since it is blocked, the amount of cold air blown out from the air outlet 7 does not decrease.

[0014]

[Effect of the device]

 As described above, the around-type freezing / refrigerating open showcase of the present invention is used for cooling operation when a part of the plurality of coolers provided corresponding to the openings on the front surface and the left and right side surfaces is defrosted. Since it is possible to prevent the cool air from the cooler from flowing to the cooler during defrosting, it is possible to prevent a decrease in the amount of cool air blown out from the air outlet, prevent an increase in the temperature inside the cooler, and prevent It can be maintained at temperature.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view showing an embodiment of an around type freezing / refrigerating open showcase of the present invention.

FIG. 2 is a vertical cross-sectional side view showing an embodiment of an around type freezing / refrigerating open showcase of the present invention.

FIG. 3 is an explanatory view showing an embodiment of an around type freezing / refrigerating open showcase of the present invention.

FIG. 4 is a vertical cross-sectional side view of a conventional around-type freezing / refrigerating open showcase.

FIG. 5 is a cross-sectional plan view of a conventional around-type freezing / refrigerating open showcase.

FIG. 6 is an external perspective view of an around-type freezing / refrigerating open showcase.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Showcase main body 2 ... Opening part 3 ... Protective airflow duct 4a, 4b, 4c ... Cooler 5a, 5b, 5c ... Blower 6 ... Blower 7 ... Air outlet 8 ... Suction port 9 ... Display shelf 10 ... Illumination lamp 11 ... Back reinforcement member 12 ... Partition plate 13 ... Duct plate 14 ... Product storage box 15 ... Cold air circulation duct 15a, 15b, 15c ... Air duct 16 ... Duct plate

Claims (1)

[Scope of utility model registration request] 1. A case body having openings on the front and left and right side surfaces is divided by a duct plate into a product storage connected to the opening and a cold air circulation duct, and the front and left and right side surfaces are inside the cold air circulation duct. In the around show freezer / refrigerator open showcase, a cooler is arranged corresponding to each opening of the cold air circulation duct, and the ends of the cold air circulation duct are positioned above and below the opening as the outlet and the inlet of the cold air curtain. The interior of the duct is divided by a partition plate from the rear of the cooler to the upper part of the duct, corresponding to the openings on the front and left and right sides, and the cooler at the front opening and the coolers at the left and right side openings are isolated from each other. Around-type freezing / refrigerating open showcase characterized by forming a closed air passage.