JPH0351684A - Cold circulation type two-chamber flat open showcase - Google Patents

Abstract

PURPOSE:To simplify piping and reduce costs by providing a shared cooler for righthand and lefthand refrigerating chambers at the lower part of a cold circulation passage surrounding said two refrigerating chambers and providing a first fan for one cold circulation passage and a second fan for the other cold circulation passage. CONSTITUTION:Refrigerating chambers 4A, 4B are provided in an open showcase 1 of a chevron cross sectional area to form cold circulation passages 5A, 5B. A cooler 6 and a fan 8A are provided in the bottom part of the cold circulation passage 5A to open a communicating window 10a in a partition wall 10 so as to provide a fan 8A. An air blasting guide 9 is provided in the cold circulation passage 5B. A cold current is flowed out from outlets 51a, 51b to return to the cooler 6. Since the first fan 8A and a second fan 8B are provided and the cooler 6 is shared, internal wiring and piping are simplified to reduce costs.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a cold air circulation system that has two refrigerator compartments on the left and right sides with open tops, and cools the refrigerator compartments by circulating indoor air through a cooler using a fan. Regarding the two-room flat open showcase.

[Conventional technology]

2. Description of the Related Art A two-chamber flat open showcase is already known, in which two left and right refrigerating chambers each having an open upper surface are formed in a main body case having a chevron-shaped cross section. In this open showcase, a cold air circulation path surrounding each of the refrigerating compartments is formed in the main body case.

This cold air circulation path runs vertically adjacent to the upright wall that stands upright in the center of the main body case via a partition wall, and each of its ends forms an outlet that opens outward, and the upper end of the outer rising part forms an air outlet. I am doing it. A fan and a cooler are provided inside each of them.

The oven showcase uses the fan to circulate indoor air through the cooler, and blows out the cold air from the outlet toward the suction port to form a cold air curtain on the upper surface of the refrigerator compartment and cool the refrigerator compartment. . Each refrigerator compartment is thus cooled by its own fan and cooler.

[Problem to be solved by the invention]

However, since the conventional open showcase is equipped with a cooler for each of the two refrigerating compartments, it has the drawbacks of high cost and complicated internal piping.

An object of the present invention is to provide a cold air circulation type two-chamber flat open showcase that can be manufactured at low cost and that allows for easy internal piping during manufacturing.

[Means to solve the problem]

In order to achieve the above object, according to the present invention, a cold air circulation path having a U-shaped cross section surrounding each of the refrigerator compartments is formed in a main body case having a chevron-shaped cross section forming two left and right refrigerator compartments, and this cold air circulation In a cold air circulation type two-chamber flat open showcase that circulates room air through a cooler using a fan installed in the refrigerator compartment to form a cold air curtain on the upper surface of the refrigerator compartment and cools the room, the lower part of one cold air circulation route is used. a cooler shared by the two rooms and a first fan that circulates indoor air to the one cold air circulation path; a communication window in the partition wall of the two cold air circulation paths formed upright in the center of the main body case; and a communication window therebetween; a second fan that blows air from the one cold air circulation path to the other cold air circulation path through a window; and a ventilation guide that guides indoor air circulating through the other cold air circulation path to the suction side of the first fan. shall be prepared.

[Effect]

A portion of the indoor air cooled by the cooler disposed in one cold air circulation path is sent into the other cold air circulation path through the communication window. In this way, the cold air flow cooled by one cooler is distributed and flows into two cold air circulation paths to cool the two left and right refrigerator compartments. Therefore, the open showcase has only one cooler, which reduces costs and also simplifies the internal piping.

〔Example〕

An embodiment of the invention will be described based on FIGS. 1 and 2. In the figure, 1 is a main case with a chevron-shaped cross section, and is composed of an outer box 2 made of a heat insulating wall and two inner boxes 3A and 3B on the left and right, with refrigerator compartments 4A and 4B formed inside each inner box, respectively. be done. Furthermore, between the outer box 2 and both inner boxes 3, a partition wall 10 is provided between the adjacent inner box side plates, and the refrigerator compartment 4A,
Cold air circulation paths 5A and 5B are formed to surround 4B.

The upper ends of the cold air circulation paths 5A and 5B, which open at the center of the main body case, constitute blow-off ports 51a and 51b, respectively, and the outer upper ends thereof have suction ports 52a and 52b. A cooler 6.degree., a defrosting heater 7, and a fan 8A are disposed at the bottom of the cold air circulation path 5A, while a communication window 10a is opened in the partition wall 10, and a fan 8B is installed therein. Further, a blowing guide 9 is provided in the cold air circulation path 5B.

In the above-mentioned configuration, during the cooling operation of the open showcase, indoor air sucked into the cold air circulation path 5A from the suction port 52a by the fan 8A is cooled by the cooler 6 and becomes a cold air flow, and this cold air flow is released from the air outlet 51a. A cold air curtain is formed on the upper surface of the refrigerator compartment 4A by blowing toward the suction port 52a, and the room is cooled. A part of the cold air flow is drawn into the cold air circulation path 5B from the communication window 10a by the fan 8B and blown out from the air outlet 51b toward the suction port 52b, forming a cold air curtain on the upper surface of the refrigerator compartment 4B and cooling the room. do.

The air that has cooled the inside of the refrigerator compartment 4B is sucked into the cold air circulation path 5B from the suction 52b by the fan 8A, sent to the suction side of the fan 8A by the air guide 9, and circulated together with the cold air flow.

On the other hand, during defrosting operation, the heater 7 is energized and the fan 8A is operated. The defrosting hot air heated by the heater 7 is then washed through the cooler 6 by the fan 8A to remove frost on the cooler 6.

To cool the two refrigerator compartments 4A and 4B as described above,
Since only one cooler is installed in the open showcase, the refrigerant piping and electrical wiring are simple, and the cost is significantly reduced compared to the conventional method. Furthermore, since the amount of power consumed by the cooler 6 and heater 7 is reduced, operating costs are similarly reduced. Furthermore, the cold air circulation path 5 is connected to the fan 8B.
The cold and low temperatures of the refrigerator compartments 4A and 4B can be made different depending on the volume of the cold air flow taken into B, and products at different refrigeration temperatures can be refrigerated in the two refrigerator compartments.

〔Effect of the invention〕

According to this invention, a cold air circulation path having a U-shaped cross section surrounding each of the refrigerator compartments is formed within the main body case having a chevron-shaped cross section forming two left and right refrigerator compartments, and a fan disposed in the cold air circulation path In a cold air circulation type two-chamber flat open showcase that circulates room air through a cooler to form a cold air curtain on the upper surface of the refrigerator compartment and cools the room, a cooler shared by the two rooms and a cooler shared by the two rooms are provided at the bottom of one of the cold air circulation paths. a first fan that circulates indoor air to the one cold air circulation path; and a second fan that is formed upright in the center of the main body case.
a second fan that blows air from the one cold air circulation path to the other cold air circulation path through the communication window in the partition wall of the two cold air circulation paths; and a second fan that blows air from the one cold air circulation path to the other cold air circulation path through the communication window; Since the oven showcase is equipped with an air blowing guide that guides it to the suction side of the fan, it becomes possible to cool two refrigerator compartments with one cooler, and the cost of the oven showcase can be significantly reduced compared to the conventional one.

Furthermore, internal piping and wiring such as refrigerant piping can be easily and easily carried out, and assembly work can proceed smoothly.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an oven showcase showing an embodiment of the present invention, and FIG. 2 is a perspective view thereof. 1... Main body case, 4A, 4B... Refrigerator compartment, 5A. 5B...Cold air circulation path, 6...Cooler, 8A...Fan (first fan), 8B...Fan (second fan), 9...Blower guide, 10... Bulkhead, 10a・
・Communication window. 1G Figure 1 Figure 2

Claims (1)

[Claims] 1) A cold air circulation path with a U-shaped cross section surrounding each of the refrigerator compartments is formed in the main case with a chevron-shaped cross section that forms two refrigerator compartments on the left and right, and indoor air is cooled by a fan installed in this cold air circulation path. In a cold air circulation type two-chamber flat open showcase that circulates cold air through a container to form a cold air curtain on the upper surface of the refrigerating room and cools the room, a cooler shared by the two rooms and indoor air are placed at the bottom of one of the cold air circulation paths. a first fan that circulates cold air to one of the cold air circulation paths; a communication window in a partition wall of the two cold air circulation paths formed upright in the center of the main body case; and a communication window that allows cold air to flow from the one cold air circulation path to the other side through the communication window. A second fan blows air into the circulation path, and a second fan blows air into the first cold air circulation path.
A cold air circulation type two-chamber flat open showcase characterized by comprising a blower guide that guides the air to the suction side of the fan.