KR0170995B1 - Refrigerator for selfsupport refrigeration and cold storage structure - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a refrigerator having an independent refrigerator / freezer structure that improves a part of a cold air circulation duct of a refrigerator.

The present invention provides a refrigerator having a cool air circulation duct composed of a rear duct and a recovery duct and circulating cool air through a freezing fan and a refrigerator fan to supply the refrigerator and the freezer compartment to the freezer compartment and the freezer compartment, And the refrigerator fan 28 is installed inside the rear duct 24 so as to provide a cool air circulation which is separated from the freezing fan 27 , And the recovery duct 25 is divided into a refrigeration recovery duct 25a and a refrigeration recovery duct 25b so that predetermined heat exchange is generated between them.

Accordingly, the present invention has the effect of improving the efficiency of the entire cooling system including the cooler and improving the workability in the manufacturing process by using only one cooler while independently forming the coolant circulation duct.

Description

Refrigerators with independent refrigeration / freezing structure

FIG. 1 is a side view showing a perspective view of a conventional refrigerator along with a perspective view of an enlarged view of a recovery duct. FIG.

FIG. 2 is a side view showing the refrigerator according to the present invention in a perspective view together with an enlarged view of the recovery duct. FIG.

DESCRIPTION OF THE REFERENCE NUMERALS

10: refrigerator (conventional) 20: refrigerator (present invention)

11, 21: Freezer 12, 22: Refrigerator

13,23: Vegetable room 14,24: Rear duct

15, 25: Recovery ducts 15a, 25a: Refrigerated recovery duct

15b, 25b: refrigerated recovery ducts 16, 26: cooler

17,27: Refrigeration fans 18,28: Refrigeration fans

19: Compressor 35: Heat transfer plate

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold air circulating apparatus for a refrigerator, and more particularly, to a cold air circulating apparatus for a refrigerator, which improves a part of cool air circulation ducts of a refrigerator to improve efficiency of the entire cooling system including a cooler, To the refrigerator.

FIG. 1 is a side view showing a partial sectional view of a conventional refrigerator.

Generally, the refrigerator 10 is provided with a refrigerant circulating device and a cool air circulating duct disposed rearwardly of a door where the door is formed, and a freezing room 11, a refrigerating room 12, 13) · Other function rooms (for example, rapid freezing room, rapid thawing room, etc.) are formed.

The refrigerant circulating device is composed of a cooler 16, a compressor 19, and a cooling fan. In the compressor 19, the refrigerant in a gaseous state at a high temperature and a high pressure is cooled in a condenser (not shown) to be liquid (condensed), and then passes through the cooler 16, The cooling fan refers to a motor-driven fan that circulates cool air around the cooler 16 and is divided into a refrigeration fan 17 and a refrigeration fan 18 depending on the application.

The cold air circulation duct is composed of a backside duct 14, a recovery duct 15, and the like. The low temperature cold air passing through the cooler 16 is divided into a freezing chamber 11 and a rear duct 14 which are disposed in the rear of the refrigerator by the freezing fan 17 and the cooling fan 18, . A part of the cool air coming down to the rear duct 14 is sent to the refrigerator compartment 12 and a part of the cool air is sent to the vegetables compartment 13 and then to the cooler 16 along with the cool air of the freezer compartment 11, The circulation of the cycle is completed.

At this time, the capacity of the freezing fan 17 and the refrigerating fan 18 for guiding the circulation of the cold air to the freezing room 11 and the refrigerating chamber 12 is appropriately selected and a damper (not shown) (11), refrigerating room (12), vegetable room (13), and other functional rooms are controlled automatically, so that the user can use the appropriate space according to the optimum storage temperature or usage of the food.

In this refrigerator 10, since the freezing fan 17 and the refrigerating fan 18 are installed at the same position (the upper part of the cooler 16) and the ducts formed at the freezing chamber 11 and the refrigerating chamber 12 side are not independent from each other The cool air in the freezing chamber 11 and the refrigerating chamber 12 may flow backward in the opposite direction of the normal flow under the condition that only one of the freezing fan 17 and the refrigerating fan 18 operates.

In addition, since the cold air flow path is complicated, the workability in the manufacturing process is deteriorated, and the back duct 14 formed on the refrigerating chamber 12 side becomes long and the flow resistance of the cool air is increased. Therefore, the capacity of the refrigerating fan 18 becomes relatively large Or a predetermined cold air circulation amount can not be secured.

Also, since the humidifier in the refrigerating chamber 12 reaches the cooler 16 through the recovery duct 15 to increase the accumulation of the refrigerant at the surface of the cooler 16, the efficiency of the cooler 16 and the frequent defrosting operation cause power consumption .

Accordingly, it is an object of the present invention to provide an independent refrigeration / freezing structure that improves the efficiency of the entire cooling system including the cooler and improves the workability in the manufacturing process by improving a part of the refrigerant circulation duct of the refrigerator. It is intended to provide refrigerator with refrigerator.

In order to achieve the above object, the present invention provides a refrigerator having a cold air circulation duct composed of a rear duct, a recovery duct, etc., and circulating cool air through a freezing fan and a refrigerating fan to supply them to the freezer compartment and the refrigerator compartment, Is formed as a separate closed loop around the refrigerating compartment 22 from the duct where the cooler 26 is located and the refrigerating fan 28 is connected to the rear duct 24), and the recovery duct (25) is divided into a refrigeration recovery duct (25a) and a refrigeration recovery duct (25b) so that predetermined heat exchange is generated between them. Provide refrigerator.

The refrigeration recovery duct 25a which is a part of the recovery duct 25 is connected to a duct where the cooler 26 and the refrigeration fan 27 are located and the refrigeration recovery duct 25b is connected to the rear duct 24 ) Are connected to each other to form closed circuits.

It is preferable that a heat transfer plate 35 is provided between the freeze recovery duct 25a and the refrigerated recovery duct 25b in which a number of cooling fins are formed on a plate of a thermally conductive material.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view showing an enlarged view of the recovery duct, and a side view showing the refrigerator according to the present invention in an end view. FIG.

The present invention can be applied to a refrigerant circulation system including a refrigerant circulation duct composed of a rear duct 24 and a recovery duct 25 and a refrigerant circulation duct 26 composed of a compressor 26, a compressor 19, a freezing fan 27, It has a circulation device.

The rear duct 24 is separated from the duct in which the cooler 26 is located and is formed as a closed loop independent from the periphery of the refrigerating chamber 22. Since the rear duct 24 for transmitting the cool air to the refrigerating chamber 22 and the vegetable room 23 is not formed up to the freezing chamber 21 as in the conventional art, the installation space of the cooler 26 and the freezing chamber 27, The use space is widened and the length of the rear duct 24 becomes shorter than that of the conventional rear duct 14. [

The refrigerating fan 28 is installed inside the rear duct 24 so as to provide cool air circulation separated from the freezing fan 27. There is an effect that the installation space of the cooler 26 and the freezing fan 27 or the use space of the freezing chamber 21 is widened like the back duct 24. The cold air in the freezing compartment 11 and the refrigerating compartment 12 does not flow backward in the opposite direction to the normal flow because neither the freezing fan 17 nor the refrigerating fan 18 operates under the condition that only one of them is operating Do not.

The recovery duct 25 is divided into a refrigeration recovery duct 25a and a refrigeration recovery duct 25b so that predetermined heat exchange is generated between them. The refrigerating recovery duct 25a which is a part of the recovery duct 25 is connected to a duct where the cooler 26 and the freezing fan 27 are located and the refrigerating recovery duct 25b is connected to the rear duct 24 Piping is connected to form each closed circuit.

As shown in FIG. 1, the conventional recovery duct 15 is divided in the lateral direction so that the refrigerant recovery ducts 15a are formed on both sides thereof, and the refrigerant recovery ducts 15b are formed in the central portion thereof. Since the refrigerating recovery duct 15a and the refrigerating recovery duct 15b are both connected to the piping on the cooler 26 side, the humidifier in the refrigerating chamber 12 reaches the cooler 16 through the recovery duct 15, ) The accumulation of sex on the surface is increased.

On the other hand, the recovery duct 25 of the present invention is divided longitudinally to form the refrigerant recovery duct 25a and the refrigerant recovery duct 25b, so that predetermined heat exchange occurs between them. In order to facilitate heat exchange, it is preferable to provide a heat transfer plate 35 between the freeze recovery duct 25a and the refrigerated recovery duct 25b, in which a number of cooling fins are formed on a plate of a material having good thermal conductivity.

Accordingly, the present invention forms a relatively short pipe composed of the rear duct 24, the refrigerating chamber 22, the vegetable compartment 23, and the refrigerated recovery duct 25b to reduce the refrigerant flow resistance of the refrigerant, Can be reduced as compared with the prior art. Indirect cooling is performed through the heat transfer plate 35 made of an aluminum material or the like without providing a separate cooler 26 on the circulation system.

On the other hand, since the humidifier that has passed through the refrigerating compartment 22 and the vegetable compartment 23 does not reach the cooler 26, the efficiency of the cooler 26 is not lowered and the period of the defrosting operation using the defrost heater The power consumption is reduced.

In the prior art, the refrigerator fan 17 and the refrigerating fan 18 are located in the same place facing each other in the opposite direction, and thus they may interfere with each other. However, the present invention excludes such a problem.

As described above, the refrigerator having the independent refrigerating and freezing structure of the present invention independently forms the refrigerant circulation duct and uses only one cooler, thereby improving the efficiency of the entire cooling system including the cooler and improving the workability in the manufacturing process It is effective.

Although the present invention has been shown and described with respect to certain preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as set forth in the following claims Those skilled in the art will readily know what is known in the art.

Claims (3)

And a cooler circulation duct composed of a rear duct, a back duct, and the like, and circulating cool air to the freezer compartment and the freezer compartment, respectively, the freezer compartment and the freezer compartment comprising: The refrigeration fan 28 is installed inside the rear duct 24 so as to provide a circulation of cool air separated from the refrigeration fan 27, Wherein the duct (25) is divided into a refrigerating recovery duct (25a) and a refrigerating recovery duct (25b) so that a predetermined heat exchange is generated between the refrigerant returning duct (25a) and the refrigerating recovery duct (25b). The refrigerator according to claim 1, wherein the refrigeration recovery duct (25a), which is a part of the recovery duct (25), is connected to a duct in which the refrigerator (26) And the rear duct (24) are connected to each other by piping to constitute respective closed circuits. The refrigerator according to claim 1, characterized in that a heat transfer plate (35) is provided between the refrigeration recovery duct (25a) and the refrigeration recovery duct (25b) with innumerable cooling fins formed on a plate of a thermally conductive material Refrigerator with refrigeration / freezing structure.