JPS58110972A - Freezing refrigerating 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] The present invention includes two types of product display cabinets: an open type product display cabinet with one Sea Case KIIi side open and a reach-in type product display cabinet with a door. , mainly suitable for use in Kotaki stores.

Concerning improvements to refrigerated syrah cases.

As is well known, the Schiller case has an open front or top cabinet that allows cold air to flow in! It ventilates and forms a cold air curtain at the opening of the cabinet.It also has an open case with a screen door that blocks outside heat from entering the cabinet and keeps the products displayed inside the cabinet cool. There is a reach-in type case that circulates cold air inside the cabinet and blocks outside heat from entering at the front. Generally, both types of open display cases are widely used in large air-conditioned stores to display and sell large quantities of fruits and vegetables, dairy products, meat, etc. On the other hand, the latter reach-in type case is suitable for keeping cold foods, ice cream, and other products whose temperature is strictly controlled.

By the way, large stores handle a large number of products, and generally the above-mentioned nine-open store case and reach-in store case are often installed independently. On the other hand, in small stores, the store space is small and the amount of products handled is small, so it is often difficult to line up the open case and the reach-in snow case separately. Recently, as shown in Fig. 1, a large combined submerged refrigeration and refrigeration system, which is constructed by stacking an in-inch case and an open case case vertically, has been developed, as shown in Figure 1. The case has been put into practical use. That is, in FIG. 1, 10 is a reach-in type seal case,
G is an open type case), and both are stacked one above the other and assembled into an integral structure. Among these, the reach-in type case 10 has a front door 11 and a cold air circulation ventilation duct between the outer box 12 and inner box 18 of the nine cabinets.
4, in which the cooling 1!1B and circulation fan 16 are housed. On the other hand, the open type case 1-case 20 is located between the outer box 21 and the inner box catfish of the open-top cabinet. A cold air circulating concentrated air duct 28 is formed in the cooling air duct 28, and a cooling 1624 and a fan 2Is are installed therein, and a cold air curtain is blown out from the top opening of the cabinet during the cooling operation. )
15. This composite showcase is equipped with a defrosting heater placed on the entrance side of the 24-unit display case, which combines an open sea case and a reach-in type sea case in one unit, so it requires less installation space and is suitable for small stores. It is suitable as

However, there are four drawbacks to this method. That is, 1
Although it is a single showcase, it has a structure that combines two showcases, so each case is equipped with a cooler, fan, defrost heater, etc. The overall production cost will not be as low as on the left. Furthermore, if two cooling FIs 15 and 24 are connected in parallel to one condensing unit 80 as shown in FIG. Because the amount of frost on the container is different,
The defrosting cycle often varies. Therefore, when one side is performing cold storage operation, the other side is inserted into the refrigerant circuit and selectively controls nine solenoid valves 81 and 82 to stop the refrigerant supply and enter continuous defrosting mode. However, in this case, since the refrigeration load changes widely, it is extremely difficult to appropriately control the operation of the refrigeration machine. In addition to improving the storage case and simplifying its structure so that it can be manufactured at low cost, we have also made it possible to expand the internal volume of the single-item display storage within the cabinet. There are nine items made for the purpose of providing an advantageous refrigerated showcase for flies.

According to the present invention, the interior of the cabinet is divided into two upper and lower product display cabinets, one of which is a reach-in type product display cabinet with an irises door, and the other is an open type product display cabinet with an open door. The space sandwiched between the upper and lower Om and the product display area O is used as a common ventilation duct, and the upper and lower product display areas are connected via the armpit ventilation duct. At the interface between the box and the inner box, two systems of upper and lower O cold air circulation/concentrated air ducts are formed, and a fan for circulation/overflow air is formed in the common ventilation duct part, and each of the two systems of cold air circulation/air ducts Kfi9 is installed. This is achieved by installing and configuring 1!0 coolers.

An embodiment of the present invention will be described below based on FIG. 1fiK.

In FIG. 2, two inner boxes 41 and 42 are arranged vertically inside an outer box 40 of the cabinet, and one of the inner boxes 41 has a transparent glass front door at the front opening of the cabinet. 48 is attached to form a reach-in type product display warehouse 44. The front side of the other inner box 42 is used as an open product display warehouse 45. In addition, a space sandwiched between the upper and lower inner boxes 41 and 42 is partitioned, and this space is used as a common ventilation duct part 46, and each product display warehouse 44745 is connected to each other via the lining duct part 46. The outer box 40 and each inner box 41 of the cabinet are rolled up nine times.
, 42, there is a cold air circulation ventilation duct 47 with two systems, upper and lower.
and 48 are formed. In addition, ventilation duct 4- of each system
7 m 4B is each product display warehouse 44 as shown in the diagram.
．． Facing the opening of 45, there are K111 openings above and below. In addition, the common ventilation duct section 46 shown in K11tl is equipped with one fan 49 for microvolume ventilation, and the common ventilation duct behind the inner box 41.4g is connected to the upper and lower system ventilation duct 47.
At the point where it branches towards 48, there are two-way wind ducts 47 and 4.
One cooling SSO is installed along the 8Kt. Note that the reference numeral 51 is a radiation removal heater.

Next, the cold storage operation with the above configuration will be explained.

During cold storage operation, the cooling s5G and the fan 49 are operated, so the cold air is circulated through the fan 49 and the cooling s50 (ventilation duct) 47.48, the cold air is circulated through the common ventilation duct section 46 as shown by arrows A and B. On the one hand, the cold air is blown out to the inside of the front door 48 of the reach-in type product display warehouse 44. On the other hand, it is blown out into the front opening of the open type product display warehouse 4S, forming a cold air curtain B'.

At the time of defrosting, the cooler 50 is stopped, and the defrosting heater 51 is energized to send heated air to the cooling unit 1150 for defrosting.

According to the above configuration, cooling 550. The number of fans 49, defrosting heaters 51, etc. is as follows:
% of the conventional structure shown in Fig. 1, the number of parts is reduced to half, and the sea case can be manufactured at low cost. In addition to a reduction in the number of parts, there are also some commonalization of ventilation ducts), and there are practical benefits such as a larger proportion of the internal volume of the product display compared to cabinets with the same external dimensions.

[Brief explanation of the drawing]

sg1 is a configuration diagram of a conventional showcase, and FIG. 2 is a configuration sectional view of an embodiment of the present invention. 40...Outer box of cabinet, 41.42...Inner box, 4B...1 layer, 44...Reach-in type product display bank, 45...Open type product display warehouse, 46... Common ventilation duct section, 47° 48...Cold air circulation ventilation duct,
49...Fan, 5o...Cooler. 1J++71r Te short story←

Claims (1)

[Claims] 1) Two upper and lower product display cabinets are divided inside the cabinet, one of which is a reach-in type product II storage with a front door, and the other is an open product display with an open front, and the upper and lower product display. The nine spaces sandwiched and partitioned between the cabinets are used as a common ventilation duct, and the upper and lower product display cabinets are connected via the duct to the upper and lower product display cabinets. In addition to forming two systems of cold air circulation ventilation ducts, a circulation ventilation fan is installed in the common ventilation duct section, and one cooler is installed in each double chain cold air circulation ventilation duct). A frozen/refrigerated sea case characterized by the following configurations.