JP2001056174A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator where a chilled air is circulated well in a chamber with a simple structure. SOLUTION: A partition plate 5 is provided in a chamber, and a cooling unit 6 is provided behind the partition plate 5. The front area of the partition plate 5 is a food housing space 3, and a chilled air is so circulated that the air cooled at the cooling unit 6 is blown into the food housing space 3 from below the partition plate 5. Here, a water receptacle 9 provided below the cooling unit 6, and an intermediate blow-out port 5a which is, provided to the partition plate 5, positioned almost intermediate point between the water receptacle 9 and the cooling unit 6, are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator and, more particularly, to a low-temperature refrigerator for storing wine and the like.

[0002]

2. Description of the Related Art Low-temperature refrigerators for storing wine and the like are well known as described in Japanese Patent No. 2589223 (F25D17 / 08). This refrigerator is equipped with an insulated outer box and a heat-conductive inner box fixedly placed in a certain space, cools the inner box by circulating cool air through the space between the outer box and the inner box, and cools the inner box. The refrigerator is a refrigerating room, and the cool air formed by the evaporator is circulated by a fan to a cool air space between the outer box and the inner box, thereby indirectly cooling the refrigerating room.

A conventional refrigerator has a top plate inside an insulated outer box,
Complicated structure due to the indirect cooling system, which is equipped with a heat conductive inner box consisting of a side plate, a rear plate, and a bottom plate, and forms a substantially closed cold air passage between the heat insulating outer box and the heat conductive inner box. There was a problem of becoming.

[0004] In view of the problems of the prior art, an object of the present invention is to provide a refrigerator having a simple structure and good circulation of cool air in a refrigerator in order to maintain a storage room at a temperature suitable for wine storage. And

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a refrigerator having a simple structure and capable of circulating cool air in a refrigerator well.

[0006]

SUMMARY OF THE INVENTION The present invention provides a partition plate in a storage.
(5) is arranged, the back of the partition (5) is used as a space for the cooler (6), the front of the partition (5) is used as a food storage space (3), and the cooler (6 In a refrigerator that circulates cold air so that the air cooled in the partition plate (5) blows out from below the partition plate (5) to the food storage space (3), a water tray disposed below the cooler (6) (9) and an intermediate blow-out hole provided in the partition plate (5) and located at an upper and lower intermediate position between the water tray (9) and the cooler (6).
(5a).

According to the present invention, at a position below the intermediate blowing hole (5a),
Further, a water guide portion (10) provided on the inner surface of the partition plate is provided. Further, the present invention is characterized in that the partition plate (5) is provided with a cool air guide portion (5b) provided near the intermediate outlet (5a).

Further, the present invention is characterized in that the cool air guide portion (5b) has a shape for guiding cool air upward through the intermediate blow hole (5a). Furthermore, the present invention is characterized in that the cold air guide (5b) has an L-shaped cross section.

Further, the present invention is characterized in that a heat insulating material (11) is arranged on the inner surface of the partition plate facing the cooler (6).

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

This embodiment is used for wine storage and the like.
This is an example in which the present application is applied to a refrigerator that stores food at 5 ° C to 18 ° C.

FIG. 1 is a sectional view of a refrigerator. FIG.
It is the figure which removed the front door of the refrigerator. FIG. 3 is a diagram for explaining the flow of air. FIG. 4 is a diagram of a water receiving tray.

FIG. 5 is a diagram for explaining the water tray. FIG. 6 is a view of a machine room located at a lower rear portion of the refrigerator. FIG. 7 is a diagram for explaining this machine room. FIG. 8 is an enlarged view near the end of the drain hose.

In FIG. 1, (1) is an insulating box provided with a rotatable glass door (2) at the front opening, and the inside of the insulating box (1) is front and rear by a partition plate (5). The front constitutes a food storage space (3), and the rear constitutes a space for disposing a cooler (6). The food storage space (3) is provided with a plurality of shelves (4) for storing wine and the like. The partition plate (5)
A fan (7) is arranged above the cooler (6),
This fan (7) has a fan cover on the food storage space (3) side.
It is covered with (8). Due to the rotation of the fan (7), the air taken in from above the food storage space (3) is cooled by the cooler (6) and blown into the food storage space (3) from below the partition plate (5). Circulate to get out. A water tray (9) is arranged below the cooler (6), and stores dew water from the cooler (6) and water guided from the water guide portion (10). The drainage hose for drainage will be described later.

The partition plate (5) is formed with an intermediate outlet (5a) at an upper and lower intermediate position between the water receiving tray (9) and the cooler (6).

At a position below the intermediate outlet (5a),
A water guide (10) is formed on the back side of the partition (5),
It plays the role of guiding the dew from (6) and the dew near the outlet to the water tray (9).

Further, a cold air guide (5b) is provided near the intermediate outlet (5a) of the partition (5). This cold air guide (5b)
Has an L-shaped cross section, and guides the cool air from the outlet (5a) upward.

A heat insulating material (11) is arranged between the partition (5) and the cooler (6) to prevent dew. At the rear of the top surface of the heat-insulating box (1), there is provided a ventilation hole (12) acting as an intake hole when the fan (7) rotates.

In FIG. 2, a fan is provided above the partition plate (5).
A fan cover (8) covering the front surface of (7) is provided. The fan cover (8) is formed by a horizontally long through hole (8a). At the approximate center of the partition plate (5), the intermediate outlet holes (5
a) and a cool air guide (5b).

FIG. 3 is a view for explaining the flow of air in the refrigerator when the fan (7) rotates. Fan (7) driven, cooler
When the air exchanged in (6) circulates in the chamber as shown by the arrow,
Dew water from the cooler (6) and dew condensation in the vicinity of the outlet are dropped and accumulated on the water receiving tray (9).

As shown in FIGS. 4 and 5, the water receiving tray (9) forms a pipe (13) on the bottom surface and is connected to a drain hose (14). The drain hose (14) is led out of the refrigerator through the heat insulating box. This pipe (13) and drainage hose (14)
Thereby, drainage channels (13, 14) are formed.

As shown in FIGS. 6 and 7, in a machine room formed at the lower rear portion of the heat insulating box (1), a refrigeration compressor, a radiating pipe, and the like are arranged. Drainage channels mentioned above (13,14)
Is drawn out of the refrigerator as shown in the figure and communicates with the drain seal (16). In the drain seal (16), water derived from the water tray (9) accumulates. When water overflows from the drain seal (16), the overflow water accumulates in the evaporating dish (15).

The water collected in the evaporating dish (15) is partially evaporated by the evaporating pipe, but the remaining water is drained from a drain port (17) formed below the evaporating dish (15).

As shown in FIG. 8, a convex portion (16a) for positioning the drain hose (14) is formed in a central portion of the drain seal (16). A through hole (14a) is provided below the drainage outlet (14) of the drainage outlet, and when water is not accumulated in the drain seal (16) when the fan (7) in the refrigerator rotates,
Through the through holes (14a) and the outlet of the drain hose (14), odorous air in the refrigerator is exhausted. Drain seal (1
When water is accumulated in 6), the outlet of the drain hose (14) is sealed by water and air cannot be exhausted, but the through hole (14a) provided in the lower part of the drain hose (14) The exhaust is performed from.

With the above configuration, when the refrigerator is operated, as shown in FIG. 3, the rotational drive of the fan (7) introduces circulating air in the upper part of the refrigerator and outside air from the ventilation holes (12). It blows out to the space where the cooler (6) is arranged. At this time, the food storage space (3) side has a low pressure and the cooler (6) arrangement space side has a high pressure after the partition plate (5). By the way, according to Bernoulli's pressure equation shown below, the flow velocity w of the air (cool air) passing through the cooler (6) decreases due to the resistance of the cooler (6), and conversely, p increases accordingly. This is referred to as static pressure recovery. At this time, the degree of turbulence of air (cool air) is smaller than that of dynamic pressure. Therefore, this air (cold air)
The flow is rectified when passing through (6), and the high pressure portion returns to static pressure, and blows out toward the food storage space (3).

[0026]

(Equation 1)

The air (cool air) that has returned to the static pressure blows out from the lower part of the partition plate (5) into the refrigerator. At this time, since the inside of the refrigerator has a low dynamic pressure and the static pressure at the outlet is high, the blown air (cool air) reaches the inner part of the refrigerator. In addition, a part of the air (cool air) blown out from the cooler (6) hits the piece (5c) and easily flows out from the intermediate blowout hole (5a) to the food storage space (3). Then, the air is blown upward in the refrigerator by the L-shaped cold air guide portion (5b). At this time, since the pressure difference between the static pressure at the outlet and the dynamic pressure inside the refrigerator is small, the blown air (cold air) flows from near the outlet to the food storage space (3).
Spreads slowly. Thereby, the temperature distribution in the central portion of the food storage space (3) is made uniform. Also, even if dew condensation occurs around the outlet (5a) due to cold air, this dew
Guided to the water tray (9) by (10). In addition, dew water from the cooler (6) is also guided to the water receiving tray (9) by the guide plate (10).
In the middle of winter or the like, the heater may be heated in the cooler (6). For ventilation, the same amount of air sucked through the ventilation holes (12) is shown in FIG.
As shown in the following figures, the water is discharged out of the refrigerator via a drain hose. At this time, the odor in the refrigerator is gradually exhausted simultaneously with the ventilation. Further, in the present application, a through hole (14a) shown in FIG. 8 is provided so that exhaust can be performed even if water is accumulated in the drain seal (16).

[0028]

According to the present invention, since the intermediate outlet (5a) is provided, the air can be circulated well. Further, in the present invention, since the water guide portion (10) is provided at a position below the intermediate outlet (5a),
The dew generated near the intermediate outlet (5a) can be guided to the water tray (9). Further, in the present invention, since the cool air guide portion (5b) is provided, the air can be circulated satisfactorily. Furthermore, in the present invention, since the cold air guide portion (5a) having an L-shaped cross section is provided, the air can be circulated more favorably. Further, in the present invention, since the heat insulating material (11) is arranged on the inner surface of the partition plate (5) facing the cooler (6), dew condensation on the inner side of the partition plate (5) can be suppressed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a refrigerator according to a first embodiment of the present invention.

FIG. 2 is a view of the refrigerator according to the first embodiment with a front door removed.

FIG. 3 is a diagram for explaining a flow of air according to the first embodiment.

FIG. 4 is a view of a water tray according to the first embodiment.

FIG. 5 is a diagram for explaining the water receiving tray.

FIG. 6 is a diagram of a machine room according to the first embodiment.

FIG. 7 is a diagram for explaining the machine room.

FIG. 8 is an enlarged view of the vicinity of the end of a drain hose in the machine room.

[Explanation of symbols]

 (1) Refrigerator (3) Food storage space (5) Partition plate (5a) Middle outlet, (5b) Cold air guide, (6). Cooler, (7) ... Fan (cool air circulation fan), (9) ... Water tray, (10) ... Water guide (11) ... Insulation material, (12) ... Ventilation holes, (13) ... drain pipes (vents, drains), (14) ... drain hoses (vents, drains), (14a) ... holes.

Claims (6)

[Claims] 1. A partition plate (5) is arranged in a refrigerator, and the partition plate
The space behind the cooler (6) is located at the back of (5), and this partition (5)
Is defined as a food storage space (3), and cool air is circulated such that air cooled by the cooler (6) blows out from below the partition plate (5) into the food storage space (3). A water tray (9) disposed below the cooler (6), and provided on the partition plate (5), the water tray (9) and the cooler
(6) A refrigerator comprising an intermediate outlet (5a) located at an upper and lower intermediate position of (6). 2. The refrigerator according to claim 1, further comprising a water guide (10) provided at a position below the intermediate outlet (5a) and on a back surface of the partition plate. 3. The refrigerator according to claim 1, further comprising a cool air guide (5b) provided near the intermediate outlet (5a) of the partition plate (5). 4. The cold air guide section (5b) is provided with the intermediate blow hole.
4. The refrigerator according to claim 3, wherein the refrigerator is configured to guide the cool air upward from (5a). 5. The refrigerator according to claim 4, wherein the cold air guide section has an L-shaped cross section. 6. A heat insulating material (11) is arranged on the inner surface of the partition plate facing the cooler (6).
The refrigerator according to claim 5.