JP3045851B2 - High humidity storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high humidity chamber for circulating cool air between cool air ducts provided between an inner box and a refrigerator.

[0002]

2. Description of the Related Art Conventionally, a refrigerator cold air circulation duct provided with a blower has been used to prevent dew from adhering to foods on the ceiling of a refrigerator compartment of a high-humidity refrigerator and to make the temperature distribution in the refrigerator uniform.

Hereinafter, with reference to FIGS. 4, 5, and 6,
A description will be given of a conventional high-humidity storage provided with a cool air circulation duct.

[0004] Reference numeral 1 denotes a main body of a high-humidity storage. The main body 1 is composed of a heat insulating box 3 provided with a door 2 made of a heat insulating material at a front opening and a heat insulating wall 5 on which a cooling unit 4 is installed. Compressor 6, condenser fan 7,
A machine room 9 for storing and installing the condenser 8 is formed. An evaporator 10 and a cooling fan 11 for blowing cool air cooled by the evaporator 10 are housed on the lower surface of the heat insulating wall 5 to form a cooling chamber 12.

Reference numeral 13 denotes a heat insulating wall formed by an outer box 13a, an inner box 13b made of synthetic resin or metal, and a heat insulating material 13c filled between the two boxes 13a and 13b.

Reference numeral 14 denotes a refrigerator compartment. Reference numeral 15 denotes a cold air discharge duct formed of a metal having good heat conductivity. Mounting plates 16 are provided on a rear portion of the refrigerator compartment, a bottom portion of the refrigerator compartment, a top surface of the refrigerator, and both side portions of the refrigerator compartment. It is attached so as to form a cool air circulating air passage between itself and the inner box 13b. Reference numeral 17 denotes a cold air suction duct open at both ends, which is attached to the back surface of the cold air discharge duct 15 on both sides of the refrigerator compartment, the lower opening is opposed to the cool air discharge duct 15 at the bottom of the refrigerator compartment, and the upper opening is the cooling compartment. 1
2 and opposite to each other. Reference numeral 18 denotes a partition plate for separating discharge cool air and suction cool air. Reference numeral 21 denotes a shelf on which food is placed.

Reference numeral 22 denotes a refrigerator cold air circulation duct, which is made of metal or synthetic resin, has a dew receiving portion 22b having a suction port 22a for sucking the cool room cold air, a blower storing portion 22c storing a blower 23, and a cool room cold air. Discharge port 22 for discharging
and a cool air discharge part 22e having d. The end of the cool air discharge portion 22e of the cool room cool air circulation duct 22 is connected to the cool air discharge duct 15 at the rear of the cool room.
The tip is obliquely downwardly opposed to the cool air discharge duct 15 at the rear of the refrigerator compartment. 24 is a blower mounting plate for locking the blower 23, and 25 is a drain.

[0008] The operation of the high-humidity storage constructed as described above will be described below. The cool air exchanged in the evaporator 10 is circulated by the cooling fan 11 from the cooling chamber 12 to the cool air discharge duct 15 and the cool air suction duct 17 to cool the surface of the cool air discharge duct 15. Cooled cold air discharge duct 1
5 is exchanged with the air in the refrigerator compartment 14, and the surface of the refrigerator compartment 14 is cooled.
Is temperature-controlled by a thermostat (not shown).
The cool air in the refrigerating compartment 14 is blown by a blower 23, a cool air outlet 22 d of the refrigerating compartment cool air circulation duct 22, the refrigerating compartment 14, and the suction port 2
Circulate with 2a.

[0009]

However, in the above-described configuration, the cool air discharged from the cool air discharge port 22d of the cool room cool air circulation duct 22 flows directly to the shelf 21, and
1 had a problem of drying the food placed on the top.

Further, the blower accommodating portion 22c has a problem that a pressure difference is generated by the blower mounting plate 24, the flow of the discharged cool air on both sides of the cool air discharge port 22d is increased, and the temperature inside the refrigerator is not uniform.

The first object of the present invention is to solve the above-mentioned conventional problems, and a first object of the present invention is to flow cool air discharged from a blower along a surface of a cool air discharge duct.

A second object is to make the discharged cool air flow uniformly.

[0013]

In order to achieve the first object, a high humidity chamber according to the present invention is provided with a discharge port between an end of a cold air circulation duct of a refrigerator and a cold air discharge duct at the rear of the refrigerator. The provided gap is provided.

Further, in order to achieve the second object, a cooler circulation air duct is provided with a blower mounting plate having a straightening port.

[0015]

According to the present invention, cold air can flow along the surface of the cold air discharge duct at the rear of the refrigerator compartment.

Further, the discharge cool air can be flowed uniformly.

[0017]

An embodiment of the present invention will be described below with reference to the drawings. In addition, about the same structure as a conventional one, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

In FIG. 1, FIG. 2, and FIG. 3, reference numeral 22f denotes a rear discharge port, which is a cold air discharge portion 22 of the cold air circulation duct 22 of the refrigerator compartment.
The gap (about 3 mm) smaller than the diameter of a water droplet due to surface tension between the end of the e and the cool air discharge duct 15 at the back of the refrigerator compartment.

The operation of the thus constructed high-humidity storage will be described below. The cool air in the refrigerator compartment 14 forms a cycle of the rear discharge port 22f, the refrigerator compartment 14, and the suction port 22a of the refrigerator compartment cool air circulation duct 22 by the blower 23.

As described above, according to the present embodiment, by providing the rear discharge port 22f at the rear of the refrigerator compartment, the flow of the cool air along the surface of the cool air discharge duct 15 at the rear of the refrigerator compartment can be achieved, and the food can be supplied. Drying can be prevented.

Next, a high humidity chamber according to another embodiment of the present invention will be described with reference to FIGS. The same components as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

Reference numeral 24a denotes a straightening port, which is formed on both sides of the blower mounting plate 24. The operation of the high humidity chamber configured as described above will be described.

The cool air in the refrigerating compartment 14 circulates between the rectifying port 24a provided in the blower mounting plate 24 and the blower 23, and forms a cycle of the back discharge port 22f, the refrigerating compartment 14, and the suction port 22a.

As described above, according to the present embodiment, since the cool air circulates at the straightening ports 24a on both sides of the blower mounting plate 24,
The flow of the cool air discharged from the rear discharge port 22f can be made uniform.

[0025]

As described above, the present invention provides a cold air discharge port by providing a back discharge port for discharging cool air in the gap between the end of the cold air discharge section of the cold room circulation duct and the cold air discharge duct at the rear of the cold room. Can flow along the surface of the cool air discharge duct, and can prevent drying of the food without flowing cold air directly to the food on the shelf.

In the present invention, the flow of the discharged cool air can be made uniform by providing straightening ports on both sides of the blower mounting plate.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a high humidity chamber according to an embodiment of the present invention.

FIG. 2 is a sectional view of the high humidity chamber shown in FIG. 1 taken along line BB.

FIG. 3 is a cross-sectional view of the high humidity chamber shown in FIG.

FIG. 4 is a longitudinal sectional view of a conventional high humidity chamber.

FIG. 5 is a sectional view of the high humidity chamber shown in FIG. 4 taken along line BB.

FIG. 6 is a sectional view taken along line AA of the high humidity chamber shown in FIG.

[Explanation of symbols]

 Reference Signs List 4 Cooling unit 13a Outer box 13b Inner box 13c Heat insulating material 14 Cold room 15 Cold air discharge duct 17 Cold air suction duct 22 Cold room cold air circulation duct 22f Rear discharge port 23 Blower 24a Straightening port

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-187978 (JP, A) JP-A-2-263830 (JP, A) JP-A-3-105186 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) F25D 17/08 304 F25D 17/08 311 F25D 21/14

Claims (2)

(57) [Claims] 1. An inner box, an outer box, an insulating box filled with an insulating material between the inner box and the outer box, a refrigerator compartment formed in the insulating box, and an upper part of the insulating box. The cooling unit disposed, a cool air discharge duct that forms a cool air circulation air passage between the inner box, a cool air suction duct locked to the inner box side of the cool air discharge duct, and a cool air in the refrigerator compartment. A refrigerating compartment cool air circulation duct having an inclination with respect to a refrigerating compartment cold air discharge duct having a suction port provided with a circulating blower; an end of the refrigerating compartment cold air circulation duct; A high-humidity storage having a back discharge port provided between the cold air discharge duct and a cold air discharge duct on the bottom of the refrigerator compartment and a drain provided through the heat insulating wall. 2. The high-humidity storage according to claim 1, wherein a blower mounting plate having a flow straightening port is provided in the refrigerating compartment cool air circulation duct.