JPH1137635A - refrigerator - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a refrigerator capable of preventing drying of a vegetable room and storing the vegetables for a long time without losing the freshness of the vegetables. SOLUTION: An inner box 3 has a refrigerator room 7 in an upper stage, a vegetable room 9 in a middle stage, a freezing room 8 in a lower stage, and an evaporator 10 installed on the back side of the freezing room 8. A blower 11 that circulates the heat-exchanged cool air to each chamber, and an evaporating dish 12 that receives defrosted water flowing down from the evaporator 10 through a drain pipe 13, on the back of the refrigerator compartment 7 above the evaporator 10, A first refrigerating compartment cold air recirculation duct 22 for returning cold air from the refrigerating compartment 7 to the upper rear portion of the freezing compartment 8 is formed, and a second refrigerating compartment communicating from a lower portion of the first refrigerating compartment cold air recirculation duct 22 to a lower portion of the evaporator 10. A cold air recirculation duct 23 is provided, a second drain pipe 24 branching from the lower part of the first refrigerating compartment cold air recirculation duct 22 and communicating with the evaporating dish 10 is provided, and a liquid dish 27 is formed at the branch point, and a back of the vegetable compartment is provided. A through hole 28 was provided in the inner box, and a moisture absorber 29 for guiding moisture from the liquid reservoir 27 to the through hole 28 was provided on the back surface of the inner box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator of a forced air circulation type, and more particularly, to a structure for preventing drying of a vegetable room.

[0002]

2. Description of the Related Art As shown in FIGS. 3 and 4, for example, a conventional refrigerator has a main body 1 composed of an outer box 2, an inner box 3, and a heat insulating material 4 filled between these two boxes. The first partition wall 5 and the second partition wall 6 form a refrigerator compartment 7 in an upper stage, a freezing compartment 8 in a middle stage, and a vegetable compartment 9 in a lower stage. An evaporator 10 installed on the back side of the freezing chamber 8;
The cold air heat-exchanged in the refrigerator room 8, the refrigerator room 7, and the vegetable room 9
Blower 11 circulating to the evaporator 10 and defrost water flowing down from the evaporator 10 are guided through a drain pipe 13 into a machine room formed at the lower part of the main body 1 and provided near the compressor 14 to receive the defrost water. And an evaporating dish 12.

The cool air generated by the evaporator 10 is supplied to a blower 11
Is supplied to the freezer compartment 8, and is connected to a cool compartment air inlet 16 at the top of the evaporator 10 connected to the cool air distribution compartment 15 via a refrigerator compartment duct 17. The cold air is uniformly supplied to the refrigerator compartment 7 from the refrigerator air outlet 18 provided in the refrigerator compartment 7 as shown by the solid arrow. The cool air circulated in the refrigerator compartment 7 is supplied to the vegetable compartment cool air outlet 20 via a vegetable compartment duct 19a connected from a vegetable compartment cool air inlet 19 provided at the lower part of the refrigerator compartment 7 as shown by a broken line arrow. It is supplied to the vegetable room 9. The cool air supplied to the vegetable compartment 9 and circulated is cooled by a cool air circulation duct 25 formed on the second partition wall 6.
It is returned to the lower part of the evaporator 10 through b.

[0004] By the way, the cold air in the refrigerator is removed from the evaporator 10.
When passing through, the moisture in the cold air is adsorbed to the evaporator 10 as frost, and the dried cold air is forcibly circulated in the refrigerator. In particular, drying of the vegetable compartment 9 had a problem that the freshness of the vegetables was quickly reduced.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, by preventing freezing in a cool air recirculation duct and reducing frost on an evaporator by backflow of cool air from an evaporator. It is another object of the present invention to provide a refrigerator that can extend the defrost interval and save energy.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has an insulating box comprising an outer box, an inner box and a heat insulating material filled between the two boxes; It is arranged in the body, a refrigerator compartment in the upper stage, a vegetable compartment in the middle stage, a first partition wall and a second partition wall forming a freezing room in the lower stage, and an evaporator installed on the back side of the freezing room, A blower that circulates the heat-exchanged cool air to the freezing room, the cold room, and the vegetable room, and a duct for the cold room that communicates with the upper portion of the back of the cold room from the upper portion of the evaporator and sends out the cold air to the cold room, Vegetable compartment duct for sending cool air from the refrigerator compartment lower portion to the vegetable compartment upper portion, a freezer compartment cool air recirculation path for returning cold air from the freezer compartment lower portion to the evaporator lower portion, and defrost water flowing down from the evaporator. It is led through a first drain pipe into a machine room formed below the heat insulating box, A refrigerator comprising an evaporating dish provided in the vicinity of the machine and receiving the defrost water, wherein a first refrigerating compartment cold air recirculation duct for returning cold air from an upper portion thereof to an upper portion on the back side of the refrigerating compartment outside the inner box of the refrigerating compartment. And forming a vegetable compartment cool air return duct that returns from the upper part of the vegetable compartment to the upper part of the first refrigerator compartment cool air reflux duct and communicates with the upper part of the first refrigerator compartment cold air reflux duct to return cold air to the upper rear part of the freezer compartment. A second refrigerating compartment cold air recirculation duct is provided from the lower portion of the cold air recirculation duct and communicates with the lower portion of the evaporator, while a second refrigerating compartment cold air recirculation duct is branched from a lower portion of the first refrigerating compartment cold air recirculation duct and communicates with the evaporating dish.
A drain pipe is provided, a liquid storage dish is formed at a lower branch point of the first refrigerator cold air recirculation duct, a through-hole is provided in an inner box on the back of the vegetable compartment, and the liquid storage dish is provided on the back of the inner box. It has a configuration in which a moisture absorbent for guiding moisture to the through-hole is provided.

[0007] Further, the suction port of the first refrigerating compartment cold air recirculation duct is formed in the upper part of the refrigerating compartment.

[0008] Further, the cold air return port of the second refrigerating compartment cold air recirculation duct is formed above the evaporator.

[0009] Further, the first refrigerating compartment cold air recirculation duct is formed on the back surface or side surface of the inner box.

[0010] The vegetable compartment cold air recirculation duct is formed on the back or side surface of the inner box.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first refrigerating compartment cold air recirculation duct is formed outside the inner compartment of a refrigerating compartment to return cold air from the upper portion thereof to an upper rear portion of the freezing compartment, and a first refrigerating compartment cold air recirculating duct is provided from an upper portion of the vegetable compartment. A second refrigerator compartment that communicates with the upper part of the duct and joins to form a vegetable compartment cool air recirculation duct that returns cold air to the upper back of the freezer compartment, and that communicates with the lower part of the first refrigerator compartment cold air recirculation duct to the lower part of the evaporator. While the cold air recirculation duct is provided, a second drain pipe branched from the lower part of the first refrigerator compartment cold air recirculation duct and communicating with the evaporating dish is provided, and a liquid reservoir is formed at a lower branch point of the first refrigerator compartment cold air recirculation duct. And, by providing a through hole in the inner box on the back of the vegetable compartment, and by providing a moisture absorber that guides moisture from the liquid reservoir to the through hole on the back of the inner box, to prevent drying of the vegetable compartment, A refrigerator that can store vegetables for a long time without losing freshness.

[0012]

FIG. 1, FIG. 2 and FIG. 3 show an embodiment of the present invention.
It will be described in detail based on. 1 is a side view of the inside of the refrigerator, FIG. 2 is a front view showing a duct and an air passage, and FIG. 3 is an enlarged sectional view of a main part showing an embodiment of the present invention. In the figure, reference numeral 1 denotes a refrigerator main body which is composed of an outer box 2, an inner box 3, and a heat insulating material 4 filled between these two boxes.

Reference numeral 5 denotes a first partition wall, 6 denotes a second partition wall, a refrigerator compartment 7 in an upper stage, a vegetable compartment 9 in a middle stage, and a freezer compartment 8 in a lower stage.
Are formed. Reference numeral 10 denotes an evaporator provided on the back side of the freezing room 8, and reference numeral 11 denotes a blower for forcibly circulating the cool air exchanged by the evaporator 10 to the freezing room 8, the refrigerator room 7 and the vegetable room 9. 12 is a first drain pipe for defrost water flowing down from the evaporator 10.
The evaporating tray is provided near the compressor 14 and receives the defrost water through a machine chamber formed at a lower portion of the main body 1 through the thirteen.

The cool air generated by the evaporator 10 is supplied to a blower 11
Is supplied to the freezer compartment 8, and is connected to a cool compartment air inlet 16 at the top of the evaporator 10 connected to the cool air distribution compartment 15 via a refrigerator compartment duct 17. The cold air is uniformly supplied to the refrigerator 7 from the cold air outlet 18 in the refrigerator as shown by the solid arrow. In addition, refrigerator room 7
Cool air is supplied to the vegetable compartment 9 from the vegetable compartment cool air outlet 20 through a vegetable compartment duct 19a connected to the vegetable compartment cool air inlet 19 provided at the lower part of the container.

A first refrigerating compartment cold air recirculation duct 22 is formed, which is connected to a refrigerating compartment suction port 21 provided at the upper rear part of the refrigerating compartment 7, passes through the back surface of the inner box 3 and communicates with the lower part of the refrigerating compartment 7. At the same time, the vegetable room cold air recirculation duct 26 is connected to the vegetable room suction port 26a provided at the upper part of the vegetable room 9 and passes through the back of the inner box 3 and communicates with the upper part of the first refrigerator room cold air recirculation duct 22. A second refrigerating compartment cool air recirculation duct 23 is formed to communicate with a lower portion of the evaporator 10 from a lower portion of the first refrigerating compartment cold air recirculation duct 22, and the first refrigerating compartment cold air recirculation duct 22 is formed.
Second drain pipe branched from the lower part of the pipe and communicating with the evaporating dish 12
24 are formed. Also, the inlet of the second drain pipe 24
A cool air return port 23a of the second refrigerating room cool air recirculation duct 23 is provided above 24a, and is configured to return cool air to a lower part of the evaporator 10.

Further, the cool air supplied to the freezing room 8 is configured to return the cool air to the lower part of the evaporator 10 through the freezing room cool air recirculation passage 25. Further, the first refrigerator compartment cool air recirculation duct 22 and the vegetable compartment cool air recirculation duct 26 may be formed on the side surface of the inner box 3.

As shown in FIG. 3, a liquid reservoir 27 is formed at a lower branch point of the first refrigerating compartment cold air recirculation duct 22, and a through hole 28 is provided in the inner box 3 on the back of the vegetable compartment 9. On the back surface of the inner box 3, there is provided a moisture absorber 29 for absorbing moisture from the liquid reservoir 27 and guiding the moisture to the through hole 28.

In the above configuration, the first refrigerating room cold air recirculation duct 22 is arranged on the back surface of the inner box of the refrigerating room 7 and circulates in the refrigerating room 7 by using the inner box as a heat exchange unit.
5-10 ° C warm air containing much moisture due to opening and closing of doors and diffusion of moisture from food can be cooled to 0-5 ° C cold air that does not freeze for dehumidification through the first cool air return duct 22. As a result, moisture in the air is dewed to a liquid state, and a part of the liquid is collected in the liquid reservoir 27, and the moisture absorbent 29 guides the moisture to the through-hole 28 on the back of the vegetable compartment 9. Further, a part of the condensed liquid can be drained from the second drain pipe 24 to the evaporating dish 12. As a result, by introducing water from the liquid storage dish 27 to the through-hole 28 by the moisture absorbing body 29, the refrigerator of the vegetable compartment 9 can be prevented from drying and can be stored for a long time without reducing the freshness of the vegetable.

[0019]

As described above, according to the refrigerator of the present invention, the first refrigerating compartment cool air recirculation duct is cooled to a temperature at which it does not freeze, and the moisture in the return air is condensed to form a liquid state. By storing water in a dish and guiding moisture from the liquid collecting dish to the through hole on the back of the vegetable compartment by a moisture absorber, the refrigerator can prevent drying of the vegetable compartment and store the vegetables for a long time without reducing the freshness of the vegetables.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a refrigerator showing an embodiment of the present invention.

FIG. 2 is a front view of the refrigerator showing an arrangement of ducts and an air passage according to the embodiment of the present invention.

FIG. 3 is an aa sectional view of FIG. 2 showing an embodiment of the present invention.

FIG. 4 is a side sectional view of a refrigerator showing a conventional example.

FIG. 5 is a front view of the refrigerator showing a conventional arrangement of ducts and an air path.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator main body 3 Inner box 5 First partition wall 6 Second partition wall 7 Refrigerator room 8 Freezer room 9 Vegetable room 10 Evaporator 11 Blower 12 Evaporating dish 13 First drain pipe 15 Cold air distribution room 16 Cold room cold air inlet 17 Refrigerator Room duct 18 Cold room cold air outlet 19 Vegetable room cold air inlet 20 Vegetable room cold air outlet 21 Cold room inlet 22 First cold room cold air return duct 23 Second cold room cool air return duct 24 Second drain pipe 24a Inlet 25 Freezer room cool air recirculation path 26 Vegetable room cool air recirculation duct 26a Vegetable room suction port 27 Liquid reservoir 28 Through hole 29 Moisture absorber

Claims (5)

[Claims] 1. An insulating box body comprising an outer box, an inner box, and a heat insulating material filled between the two boxes, disposed in the insulating box body, a refrigerator room in an upper stage, a vegetable room in a middle stage, and a freezing room in a lower stage. A first partition wall and a second partition wall that form, an evaporator installed on the back side of the freezing room, and a blower that circulates cold air heat exchanged by the evaporator to the freezing room, the refrigerator room, and the vegetable room. A duct for a refrigerator compartment that communicates from the upper part of the evaporator to an upper rear part of the refrigerator compartment and sends out cool air to the refrigerator compartment; and a duct for vegetable compartment that sends cool air from the lower part of the refrigerator compartment to the upper part of the vegetable compartment. A freezer return path for returning cool air from the lower part of the freezer to the lower part of the evaporator; and a defrosting water flowing down from the evaporator through a first drain pipe to a machine room formed at a lower part of the heat insulating box. The evaporating dish provided near the compressor and receiving the defrost water. Outside the inner box of the refrigerating compartment, forming a first refrigerating compartment cold air recirculation duct for returning cold air from the upper part to the upper rear part of the freezing compartment, and forming the first refrigerating compartment cold air recirculation duct from the upper part of the vegetable compartment. A second refrigerator which communicates with an upper part and forms a vegetable room cool air recirculation duct for returning cold air to an upper rear part of the freezing room, and a lower part of the first refrigerator room cool air recirculation duct and communicates with a lower part of the evaporator. While providing a room cold air recirculation duct, a second drain pipe branched from the lower part of the first refrigerating room cold air recirculation duct and communicating with the evaporating dish is provided, and a liquid is provided at a lower branch point of the first refrigerating room cold air recirculation duct. A refrigerator comprising: a storage dish; a through-hole provided in an inner box on the back of the vegetable compartment; and a moisture absorber for guiding moisture from the liquid storage dish to the through-hole on the back of the inner box. 2. The refrigerator according to claim 1, wherein a suction port of the first refrigerating compartment cold air recirculation duct is formed in an upper portion of the refrigerating compartment. 3. The refrigerator according to claim 1, wherein a cool air return port of the cool air reflux duct in the second refrigerator compartment is formed above the evaporator. 4. The refrigerator according to claim 1, wherein the first refrigerating compartment cold air recirculation duct is formed on a back surface or a side surface of the inner box. 5. The refrigerator according to claim 1, wherein the vegetable room cool air recirculation duct is formed on the back surface or side surface of the inner box.