JPS6125582Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention has at least three doors arranged side by side in the front, two of these doors open in the same direction, and the other door opens in the opposite direction from the two doors. Regarding the refrigerator,
The purpose of this is to reduce the leakage of cold air caused by opening and closing doors that open in the opposite direction, and to quickly lower the internal space facing the door to a predetermined temperature after the door is closed. .

An example of the present invention will be explained below based on the drawings.
Reference numeral 1 refers to a refrigerator called a reach-in type, and the main body is composed of a heat insulating wall 2 with an opening 3 for storing and taking out products in the front, and two heat insulating columns 4A are placed at equal intervals in the opening. 4B is erected to divide this opening 3 into three sections 3A, 3B, and 3C, and three double-fold transparent doors 5 are used to open and close these three sections.
A, 5B, and 5C are arranged side by side on the front. Of these three doors, two doors 5B and 5C are pivoted to the main body via hinges 6B and 6C on the upper and lower right ends, and the remaining door 5A is pivoted to the main body via hinges 6A on the upper and lower left ends. As shown in FIG. 3, the left door 5A is provided to open to the left so that customers can easily take out the products in the refrigerator 1 even if the wall of the store hits the left side of the refrigerator 1, for example. , opens in the direction of arrow M and closes in the direction of arrow M', and the right door 5C opens to the right so that customers can easily take out products in the refrigerator 1 even if the wall of the store hits the right side of the refrigerator 1. The central door 5B is opened in the direction of the arrow H and closed in the direction of the arrow H', and the central door 5B is provided to open to the right like the door 5C.
It opens in the direction of arrow H and closes in the direction of arrow H. 7 is a partition plate disposed at an appropriate distance from the inner walls of the top wall 2A and back wall 2B of the heat insulating wall;
By arranging this partition board, there is a storage room 11 with a plurality of shelves 8, a wire sole 9, and fluorescent lamps 10 on both left and right walls 2C and 2D, and a defrosting heater 13 on the air inlet side. A cold air passage 16 in which two axial flow blowers 15A and 15B supported by a plate fin type cooler 12 and a fan case 14 are installed, and a cold air outlet 17 opened at the upper front side of the storage chamber. , and a cold air suction port 18 opened at the lower rear side of the storage chamber. The partition plate is made of a metal plate, and includes a top wall 7A, a back wall 7B perpendicular to the top wall, and a plurality of through holes 19, 19 laterally drilled in the upper part of the back wall, which are inclined backwardly. The provided inclined view 7C is integrally formed by bending. Each of the blowers 15A and 15B is connected to the central door 5B.
Since it opens to the right, it is slightly shifted to the left side of the center of the pillars 4A and 4B, that is, to the door 5A side, as shown in Fig. 3.
In addition, the propeller 15e is connected to the opening 1 of the fan case 14.
4A and the motor 15b is located at the inclined portion 7C.
The fan is housed in a high-pressure chamber 16A defined downstream of the cooler 12 in the cold air passage 16 by the inclined portion and the fan case 14. Further, the cooler 12 is installed so that its center is offset to the left side of the center of the heat insulating wall 2, that is, toward the door 5A side. 16B is a piping space defined between the cooler 12 and the right side wall 2D of the heat insulating wall when the cooler 12 is installed, in which the low pressure liquid pipe 22 and the low pressure gas pipe 23 equipped with the expansion valve 21 are housed. has been done.

Reference numeral 24 denotes a machine room formed at the bottom of the main body, in which a refrigerant compressor 25, a condenser 26, a blower 27, and a drainage tank 28, which together with the cooler constitute a refrigeration cycle, are installed. 29 is the bottom wall 2E of the insulation wall 2
A drain pipe provided through the drain pipe leads the dew from the cooler 12 to the drain tank 28.

Next, cold air circulation in the refrigerator 1 will be explained.
During the cooling operation, the cold air that has been heat exchanged in the cooler 12 is forcedly circulated by the blowers 15A and 15B as shown by the arrows in FIG. Cooling. During this circulation, the cold air flowing into the high-pressure chamber 16A is partially diverted through the through holes 19, 19 of the inclined portion 7C, and this divided cold air crosses the upper part of the storage chamber 11, cooling the products and creating an air curtain. Absorbed by CA.

Also, in this circulation, the air outlet 17 and the suction port 1
The flow velocity distribution of No. 8 becomes the curve shown in FIG. Curve A is the blowout flow velocity distribution, and curve A and B are the blower 15A,
15B shows the flow velocity at the center of 15B. Moreover, curve B shows the suction flow velocity distribution. Note that the curve I' shown in Figure 5
and B' are the center of the blower 15A, 15B and the support column 4.
It shows both the blowout and suction flow velocity distributions with the centers of a and 4b aligned.

According to such a configuration, the flow velocity distribution of the blowers 15A, 15B is biased toward the door 5A side from the center of the pillars 4A, 4B, and in accordance with this bias, the flow of cold air heat exchanged in the cooler 12 is also biased toward the door 5A. 5A side, even if the doors 5A and 5B are opened and closed frequently, the intrusion of outside air into the storage room 11 from the compartments 3A and 3B can be reduced, and the temperature recovery of the storage room 11 after closing the doors can be reduced. It is possible to speed up the process. That is, since the door 5A opens to the left, cold air on the left side wall 2C tends to leak from the compartment 3A when the door is opened, and if the adjacent door 5B is opened immediately after the door is closed, the door 5B Since the door opens to the right, the door 5A side of the door 5B is opened, and even if the door 5A is closed due to the opening force of this door, the cold air in the storage room 11 facing the compartment 3A is still cold air in the storage compartment 11 facing the compartment 3B. with door 5
When the door of B is opened, it is drawn outside again and a large amount of water leaks out, which tends to increase the temperature in the area behind the pillar 4A.
5B can be reduced by the flow velocity distribution and the deflection of the cool air by the deflection of the cooler 12. In addition, when the center door 5B is provided to open to the left, the cooler 12 is installed so that its center is offset to the right from the center of the heat insulating wall 2, and each blower 15
A and 15B are provided so as to be offset to the right from the center of the pillars 4A and 4B, and are connected to the cooler 12 and the blower 1.
The same effect as in the above embodiment can be obtained by the right side walls of 5A and 15B. Also, by shifting the cooler 12 from the center of the heat insulating wall 2 to the door 5A side, the piping space 1 can adjust the expansion valve 21.
6B is obtained, making maintenance and inspection easy.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the refrigerator of the present invention;
Figure 2 is a sectional view taken along line A-A' in Figure 1, Figure 3 is a sectional view taken along line B-B' in Figure 2, Figure 4 is an enlarged view of Figure 2C, and Figure 5 is a sectional view taken along line A-A' in Figure 1.
The figure is a flow velocity distribution diagram upstream and downstream of the air curtain. 2...Insulating wall, 3...Opening, 3A, 3B, 3C
...Division, 4A, 4B... Support, 5A, 5B, 5
C...Door, 7...Division board, 11...Storage room, 12
...Cooler, 15A, 15B...Blower.

Claims (1)

[Scope of utility model registration request] The main body is constituted by an insulating wall with a front opening, and a storage room in which partition plates are arranged and shelves are installed at appropriate intervals from the inner wall of the insulating wall, a plate fin type cooler, and at least two shafts. At least three double doors form a cold air passage in which a flow-type blower is installed, at least two pillars are erected in the front opening to divide the front opening into at least three sections, and each of the sections is closed off. In a refrigerator that is arranged side by side on the front, the right door among the three doors opens to the right, the left door opens to the left, and the center door located between the left and right doors opens to the left and right. A refrigerator characterized in that one side of the refrigerator is opened, and both blowers are installed in the center of a heat insulating wall of the cooler, with both blowers being slightly offset from the center of each support in a direction opposite to the opening direction of the center door.