TWI531771B - Refrigerator-freezer - Google Patents

Description

Refrigerated refrigerator

The present invention relates to a refrigerator-refrigerated refrigerator in which a refrigerator compartment is disposed above a freezer compartment, and a refrigerating compartment cooling fan that supplies cold air to the refrigerating compartment is provided in addition to the circulation fan for cooling in the interior.

In a large capacity, a high-temperature room (a room in a refrigerating temperature zone such as a refrigerating room or a vegetable room) is disposed above a lower greenhouse (a room in a freezing temperature zone such as a freezing compartment or an ice making compartment), and has a library inside the low-temperature greenhouse. The circulating fan for internal cooling, and the circulating fan to circulate the cold air cooled by the cooler, and the freezer in the way of cooling the refrigerator to the upper part of the greenhouse with a large volume and a high height is difficult to use only 1 In the case of a circulating fan, a refrigerator is proposed which is configured to more efficiently cool a high-temperature greenhouse by additionally arranging a high-temperature-cooling fan (see, for example, Patent Document 1).

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Patent No. 4667307 (Page 5, Fig. 3 to Fig. 4)

The air passage structure of the refrigerator disclosed in Patent Document 1 is set at a low level. The cold air blown by the circulating fan for cooling in the vicinity of the outlet of the cooler on the back side of the greenhouse is divided into cold air flowing into the low greenhouse and cold air flowing into the high greenhouse, and the cold air flowing into the high greenhouse is placed at the high temperature on the back side of the high greenhouse. The fan for room cooling is blown out into the high temperature room.

However, in this configuration, since the fan for cooling the high-temperature greenhouse is driven to rotate when the high-temperature greenhouse is cooled, as shown in FIG. 5, the cold air supplied to the low-temperature greenhouse is distributed to the high-greenhouse cooling type. The air volume blown by the low-temperature greenhouse is reduced, and the cooling efficiency of the low-temperature greenhouse is lowered.

The present invention has been made in order to solve the above problems, and an object of the invention is to provide a refrigerated refrigerator in which all of the cold air in the cooler compartment is sent to a low-temperature greenhouse, and in the case of cooling the high-temperature greenhouse, the low temperature is created. The cold air in the room is sent to the high greenhouse, and in the case of cooling the high greenhouse, the cooling efficiency of the low greenhouse will not decrease.

The present invention is a refrigerator in which a low-temperature greenhouse is partitioned and a low-temperature greenhouse is disposed below, and a high-temperature greenhouse is placed above, and a first fan is provided in a cooler installed inside the low-temperature greenhouse The cold air of the room is sent to the low greenhouse; and the second fan sends the cold air of the low greenhouse to the high greenhouse pipe disposed inside the high greenhouse.

According to the present invention, since the cold air which is used as the cooler chamber is sent to the low-temperature greenhouse by the first fan, in the case of cooling the high-temperature greenhouse, the cold air of the low-temperature greenhouse is sent to the high-temperature greenhouse by the second fan, so that the high-temperature greenhouse is cooled. Situation, low The cooling efficiency of the greenhouse will not decrease.

[First Embodiment]

Fig. 1 is a schematic explanatory view showing a state in which the door of the refrigerator-freezer according to the first embodiment of the present invention is removed, and Fig. 2 is a cross-sectional view taken along line A-A of the first drawing.

In the two figures, 1 is a heat insulating box body constituting a refrigerator body that is open at the front, and is composed of an outer box 1a, an inner box 1b, and a heat insulating material 1c filled between the outer box 1a and the inner box 1b, and the outer box 1a It is made of a steel plate, and the inner case 1b is composed of a resin molded article.

2 is a heat insulating partition that separates, for example, a low-temperature greenhouse 3 such as a freezer compartment from a high-temperature greenhouse 4 such as a refrigerator compartment, and the low-temperature greenhouse 3 is divided into two compartments by a low greenhouse partition 5. Further, the low greenhouse partition 5 may be omitted, and the low greenhouse 3 may be formed by one chamber. The 6 series opens and closes the low greenhouse door opened in front of the low greenhouse 3, and the 7 series opens and closes the high greenhouse door opened in front of the high greenhouse 4.

8 is a low-temperature indoor side heat insulating wall provided inside the low-temperature greenhouse 3, and a cooler chamber 9 is formed between the inner tank 1b of the heat insulating box 1, and the cooler 10 is installed in the cooler chamber 9. 11 is a blow-out pipe that connects the upper portion of the low-temperature greenhouse 3 with the cooler chamber 9, and 12 is a return pipe that connects the lower portion of the low-temperature chamber 3 with the cooler chamber 9. The 13 series cooling fan (hereinafter referred to as a first fan) provided in the blowing pipe 11 is used.

The 14-series high-temperature indoor side heat insulating wall provided inside the high-temperature greenhouse 4 forms a high-greenhouse pipe 15 between the inner tank 1b of the heat insulation box 1.

16 is a cold air introduction pipe provided in the heat insulating partition 2, and one end is opened in the low temperature chamber 3 to form the suction port 16a, and the other end is opened in the high greenhouse pipe 15 to form the air outlet 16b.

17 is a high-temperature-cooling fan (hereinafter referred to as a second fan) provided on the side of the air outlet 16b of the high-temperature pipe 15 of the cold air introduction pipe 16. Further, in Fig. 1, 18 is provided in the low temperature indoor side heat insulating wall 8, and the low greenhouse cold air blowing port which connects the low temperature chamber 3 and the cooler chamber 9 is provided in the high temperature indoor side heat insulating wall 14 and The high greenhouse 4 is connected to the high greenhouse tube 15 and is connected to a high greenhouse cold air outlet.

Next, the cooling action of the refrigerator-freezer constructed as described above will be described.

The air (cold air) in the cooler chamber 9 cooled by the cooler 10 is blown out from the blowing pipe 11 and the low-temperature cool air blowing port 18 to the low-temperature greenhouse 3, and after cooling in the low-temperature greenhouse 3, Returning from the return pipe 12 to the cooler chamber 9, it is cooled by the cooler 10.

Further, when the inside of the high temperature chamber 4 is cooled, the second fan 17 is driven to rotate. Thereby, the cold air in the low temperature chamber 3 is sucked into the cold air introduction pipe 16 from the suction port 16a, and is sent from the air outlet 16b to the high greenhouse pipe 15, and from the high greenhouse air-conditioning outlet 19 provided in the high temperature indoor side heat insulating wall 14. After being blown out, the inside of the high temperature chamber 4 is cooled, and then returned to the cooler chamber 9 from a high-temperature return pipe (not shown).

In this manner, in the present embodiment, as shown in Fig. 3, the lowest temperature cold air cooled in the cooler chamber 9 is sent to the low temperature chamber 3 by the first fan 13 for cooling the low temperature chamber 3. However, the cooling system in the high greenhouse 4 utilizes cold The cold air of the low-temperature greenhouse 3 is sent by the gas introduction pipe 16, but the cold gas system is higher than the cold air immediately after being blown out from the first fan 13, but is sufficient to cool the inside of the high-temperature greenhouse 4 to the target temperature.

Further, since the vicinity of the suction port 16a of the cold air introduction pipe 16 is low pressure, the suction port 16a can be installed at a position where the low temperature greenhouse 3 is likely to become a high temperature (for example, in the vicinity of the low greenhouse door 6). The cold air blown out by the fan 13 to the low temperature chamber 3 is guided to the suction port 16a of the cold air introduction pipe 16, and the temperature unevenness in the low temperature chamber 3 can be improved.

Further, since all of the cold air in the cooler chamber 9 is sent to the air passage of the low-temperature greenhouse door 6, the air volume to the low-temperature greenhouse 3 when the high-temperature greenhouse 4 is cooled is not reduced, but the low-temperature greenhouse 3 can be The temperature rise is suppressed to a minimum.

[Second Embodiment]

Fig. 4 is an explanatory view of a main part of the refrigerator-freezer according to the second embodiment of the present invention. In addition, the same symbols are attached to the same portions as those in the first embodiment.

In the present embodiment, a refrigerator-freezer having a low greenhouse partition 5 as shown in Fig. 1 in the low-temperature greenhouse 3 is provided, and the cold air introduction pipe 20 for guiding the cold air in the low-temperature greenhouse 3 to the high-temperature greenhouse 4 is installed in the low greenhouse partition. 5. Further, a suction port 20a opening to the low-temperature chamber 3 is provided at one end, and an air outlet 20b penetrating through the heat insulating partition 2 and opening to the high-greenhouse pipe 15 is provided at the other end, and the second fan 17 is provided at the air outlet 20b.

In the present embodiment, substantially the same effects as in the case of the first embodiment can be obtained, but further, most of the cold air introduction pipe 20 is provided in Since the greenhouse wall 5 is low, the thickness of the heat insulating layer of the heat insulating partition 2 separating the low greenhouse 3 from the high greenhouse 4 is not thin.

Moreover, since the chambers on both sides of the low greenhouse wall 5 of the low-temperature greenhouse 3 have the same temperature band, the heat-insulating structure between the two chambers is not required or extremely thin, and it is not necessary to consider the library caused by the reduction in heat insulation. The influence of the internal temperature can fully ensure the tube area of the high greenhouse 4.

Further, although not shown, the cold air introducing pipe 16 of the first embodiment and the cold air introducing pipe 20 of the first embodiment can be provided in the heat insulating partition wall 2 and the low greenhouse partition wall 5 according to the temperature distribution of the low temperature chamber 3. both sides.

[Third embodiment]

In the refrigerator-freezer according to the first or second embodiment, the windshield 21 (see FIG. 2) for opening and closing the air passage is provided on the upstream side of the second fan 17 of the cold air introduction pipes 16 and 20, and the air-conditioning is provided. The introduction pipes 16, 20 are provided in the heat insulating partition 2 or the low greenhouse partition 5.

According to the present embodiment, by closing the windshield 21, since the flow of the cold air from the low-temperature greenhouse 3 to the high-temperature greenhouse 4 can be surely blocked, the temperature of the low-temperature greenhouse 3 can be more reliably adjusted.

1‧‧‧Insulation box

1a‧‧‧outer box

1b‧‧‧ inner box

1c‧‧‧Insulation materials

2‧‧‧Insulation wall

3‧‧‧low greenhouse

4‧‧‧High greenhouse

5‧‧‧Low greenhouse wall

6‧‧‧Low greenhouse door

7‧‧‧High greenhouse door

8‧‧‧Low temperature indoor side insulation wall

9‧‧‧cooler room

10‧‧‧ cooler

11‧‧‧Blowout tube

12‧‧‧Return pipe

13‧‧‧Inner Cooling Fan (1st Fan)

14‧‧‧High temperature indoor side insulation wall

15‧‧‧High Greenhouse Tube

16, 20‧‧‧ cold air inlet pipe

16a, 20a‧‧ ‧ suction inlet

16b, 20b‧‧‧ blown out

17‧‧‧High greenhouse cooling fan (2nd fan)

18‧‧‧Low greenhouse air-conditioning

19‧‧‧High greenhouse air-conditioning

21‧‧‧ Windshield

Fig. 1 is a schematic explanatory view showing a state in which the door of the refrigerator-freezer according to the first embodiment of the present invention is removed.

Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1 with a part omitted.

Fig. 3 is a cold air path diagram of the refrigerated refrigerator of the present invention.

Figure 4 is a diagram showing the main part of the refrigerator-freezer according to the second embodiment of the present invention. An explanatory diagram of the department.

Fig. 5 is a cold air path diagram of a conventional refrigerator-freezer.

1‧‧‧Insulation box

2‧‧‧Insulation wall

3‧‧‧low greenhouse

4‧‧‧High greenhouse

6‧‧‧Low greenhouse door

7‧‧‧High greenhouse door

8‧‧‧Low temperature indoor side insulation wall

9‧‧‧cooler room

10‧‧‧ cooler

11‧‧‧Blowout tube

12‧‧‧Return pipe

13‧‧‧1st fan

14‧‧‧High temperature indoor side insulation wall

15‧‧‧High Greenhouse Tube

16‧‧‧Air inlet tube

16a‧‧‧Inhalation

16b‧‧‧Blowing out

17‧‧‧2nd fan

21‧‧‧ Windshield

Claims (7)

A refrigerating and refrigerating refrigerator is partitioned by a heat insulating partition, and a low greenhouse is disposed below and a high greenhouse is disposed above, characterized in that: a first fan is disposed in a cooler disposed inside the low greenhouse The cold air of the chamber is sent to the low greenhouse; the high greenhouse tube is disposed inside the high greenhouse; the low greenhouse partition is partitioned into the left and right; the cold air introduction tube has an opening disposed at the low greenhouse partition The inlet of the low-temperature greenhouse is connected to the high-temperature greenhouse, wherein the suction inlet is located on the upper side of the low-temperature greenhouse; and the second fan is disposed at the outlet of the cold-gas inlet pipe to the high-temperature greenhouse. The refrigerator-freezer according to claim 1, wherein the cold air introduction pipe is provided between the heat insulating partition wall and the low greenhouse partition wall, and the second fan is disposed at the air outlet of the cold air introduction pipe. . A refrigerated refrigerator according to claim 1, wherein the suction port of the cold air introduction pipe is disposed in the vicinity of the low greenhouse door of the low greenhouse. A refrigerated refrigerator according to the first aspect of the invention, wherein the windshield is disposed on an upstream side of the second fan of the cold air introduction pipe. A freezer-refrigerated refrigerator characterized by having a heat-insulating box body, the heat-insulating box system is disposed under the heat insulating partition wall, and the high-temperature greenhouse is disposed above the heat insulating partition wall; The cooler chamber of the device is placed on the low temperature indoor side insulation wall and Between the heat-insulating boxes, the heat insulating partition wall is disposed on the inner side of the low-temperature greenhouse, and the blow-off pipe and the return pipe connecting the low-temperature chamber and the cooler chamber are disposed on the low-temperature indoor side heat insulating wall, and a first fan is disposed in the blowing pipe; and a cold air introducing pipe is provided in the low greenhouse which partitions the low greenhouse into a left and right lower greenhouse wall having a suction opening opening on the upper side of the low greenhouse, and having an opening at the other end The second outlet fan is disposed on the air outlet side of the cold air introduction pipe. A refrigerated refrigerator according to claim 5, wherein the suction port of the cold air introduction pipe is disposed in the vicinity of the low greenhouse door of the low greenhouse. A refrigerating and refrigerating refrigerator according to claim 5, wherein the windshield is disposed on an upstream side of the second fan of the cold air introduction pipe.