JP3239165U - Humidifier for refrigerator - Google Patents

Abstract

An object of the present invention is to obtain an external humidifier for a refrigerator capable of preventing dew condensation inside the refrigerator while keeping the inside of the refrigerator at high humidity at low cost. A housing (10) having a water tank (11) at the bottom, an air bubble generating means (12) provided in the water tank, an exhaust pipe (13) for sending air in the housing into a refrigerator (20), and air in the refrigerator into the housing. A gas outlet 21 of the exhaust pipe to the inside of the refrigerator is provided below the suction port of the air supply pipe in the refrigerator, and the gas outlet of the exhaust pipe to the refrigerator is connected to the refrigerator. Equipped with an acceleration tube that ejects air at high speed. [Selection drawing] Fig. 1

Description

The present invention relates to a humidifier for a refrigerator for preserving perishable foods such as vegetables, fruits, meat, and seafood for a long period of time with high freshness.

When you put something in the refrigerator and close the door, the air that entered while the door was open contains water vapor with a vapor pressure equivalent to the temperature of the outside air. The temperature drops, and as the temperature drops, the amount of saturated steam drops, so the steam condenses into water droplets.

Furthermore, as the temperature of the air inside the refrigerator decreases, the air inside the refrigerator tries to reduce its volume, resulting in a decrease in pressure. The water contained in perishable foods such as vegetables, fruits, meat, and seafood placed in this state evaporates, degrading the quality.

In addition, if perishable foods are wrapped in cling film or sealed in a plastic bag with a zipper to prevent them from drying out, problems such as lack of oxygen will occur even if they prevent drying, which will also lead to a decrease in quality. .

Therefore, a conventional humidifier used in a refrigerator or cold storage has a water tank at the bottom and forms a closed air (inside atmosphere) flow path in a plane perpendicular to the air (inside atmosphere) flow direction. A blower is provided at the entrance side or the exit side of the air flow path so that the air (inside atmosphere) in the refrigerator or cold storage is circulated through the air (inside atmosphere) flow path by the blower. Inside Atmosphere) A humidifier for a high-humidity refrigerator and a cold-storage chamber is known in which a heating means is attached to the passage entrance side or the water tank (Patent Document 1).

JP 2010-078225

However, in the above-mentioned humidifiers for high-humidity refrigerators and coolers, the air circulated inside the refrigerator is heated in order to increase the amount of saturated water vapor in the refrigerator. Dew quickly condenses and frost adheres to the inner walls of the refrigerator, lowering the cooling efficiency. In order to defrost, the cycle of raising the temperature to melt the ice "defrost" and then cooling it down is repeated. There were problems such as sanding.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an external humidifier for a refrigerator that can prevent dew condensation inside the refrigerator while keeping the inside of the refrigerator at a low cost at a high humidity. .

In order to meet such a purpose, an external humidifier for a refrigerator according to the present invention comprises a housing having a water tank at the bottom, and an air bubble generating means is provided in the water tank to send air in the housing into the refrigerator. and an air supply pipe for sending air in the refrigerator into the housing.

By constructing in this way, the air whose humidity is increased by the water vapor generated when the bubbles generated in the water tank burst on the surface of the water and whose temperature is about the same as the temperature outside the refrigerator is fed into the refrigerator. There is an advantage that the humidity in the refrigerator can be maintained at a high level by utilizing the fact that the amount of saturated water vapor decreases and the relative humidity increases because the refrigerator is cooled by the cold air inside the refrigerator.

Further, the refrigerator external humidifier according to the present invention is characterized in that the gas outlet of the exhaust pipe into the refrigerator is provided below the suction port of the air supply pipe in the refrigerator.

With this configuration, the humidified air that is warmer than the temperature inside the refrigerator rises in the refrigerator due to the difference in the specific gravity of the air, quickly keeping the humidity in the refrigerator at high humidity, and the saturated water vapor. There is an advantage that the air in the refrigerator can be exhausted without taking time to cause condensation.

The external humidifier for a refrigerator according to the present invention is characterized in that an acceleration tube for ejecting air in the refrigerator at a high speed is provided at a gas outlet of the exhaust pipe to the inside of the refrigerator.

By configuring in this way, the air sent from the humidifier to the exhaust pipe moves quickly in the exhaust pipe, thereby preventing condensation in the exhaust pipe, and the air sent from the humidifier to the refrigerator can be prevented. There is an advantage that the air is quickly mixed with the air in the refrigerator, and the humidity unevenness in the air in the refrigerator is reduced.

As described above, according to the refrigerator external humidifier according to the present invention, the inside of a refrigerator or the like can be efficiently kept at high humidity at a low cost.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a conceptual diagram of the whole including a refrigerator showing a first embodiment of an external humidifier for a refrigerator according to the present invention; FIG. 2 is a conceptual diagram of foaming and exhaust/supply of the external humidifier for refrigerator of FIG. 1 ; FIG. 4 is a cross-sectional view showing a structure for supplying air to an acceleration tube, showing a second embodiment of the refrigerator external humidifier according to the present invention. Figure 4 is a perspective view of the acceleration tube portion of Figure 3; FIG. 5 is a configuration diagram of a water level adjusting means showing a third embodiment of the refrigerator external humidifier according to the present invention;

FIG. 1 shows a first embodiment of an external humidifier for a refrigerator according to the present invention, and the general symbol 1 indicates the external humidifier for a refrigerator that characterizes the present invention.

FIG. 1 is a conceptual diagram of the entire refrigerator including an external humidifier for a refrigerator and a refrigerator according to the present invention. ing.

When the water tank 11 of FIG. 1 is filled with water and air bubbles are generated in the water by the foaming device 12, the air bubbles burst when coming out to the surface of the water. When the bubble bursts, the volume of the bubble rapidly shrinks, so the air inside the bubble is compressed, rises in temperature, and evaporates. As a result, the humidity inside the housing 10 increases.

When the air in the housing 10 of FIG. 1 is sent to the refrigerator 20 through the exhaust pipe 13, since the housing 10 is not provided with a refrigerating means, the temperature inside the refrigerator 20 is higher than the temperature inside the refrigerator up to that point. Air will be supplied. The air sent from the housing 10 through the exhaust pipe 13 into the refrigerator 20 comes into contact with the low-temperature air in the refrigerator 20, and when the temperature drops, the saturated water vapor amount decreases and the relative humidity increases. going up.

In this way, if air with a temperature slightly higher than the inside of the refrigerator 20 and a high humidity is sent in and the relative humidity is raised as the temperature of the air that is sent in decreases, the humidity is increased before the air is sent into the refrigerator. To keep the air in a refrigerator at a high humidity without causing the temperature in the refrigerator to rise or become unstable due to feeding heating steam.

Further, as shown in FIG. 1, an exhaust pipe outlet 21 in the refrigerator 20 of the exhaust pipe 13 for sending air from the housing 10 is replaced by an air supply pipe inlet 22 of the air supply pipe 14 for returning air from the refrigerator 20 to the housing 10 . If it is provided so as to be lower, the air sent from the housing 10 to the refrigerator 20 has a higher temperature and is lighter than the air that had been inside the refrigerator 20 until then, so the air inside the refrigerator 20 rises naturally. , the moisture unevenness in the refrigerator 20 is less likely to occur.

2, the generation of air bubbles in FIG. 1 and the circulation of air between the housing 10 and the refrigerator 20 will be described.

In FIG. 2, by sending air from the air compressor 15 to the foaming device 12 in the water tank 11, air bubbles are generated in the water, and when the bubbles on the surface of the water burst, steam is generated. increase humidity without excessively increasing air temperature. The air is sent into the exhaust pipe 13 by an exhaust fan 16 provided inside the exhaust pipe 13 . An air supply fan 17 is provided in the air supply pipe 14 to return the air in the refrigerator 20 to the housing 10.例文帳に追加

3 and 4 show a second embodiment of the refrigerator external humidifier according to the present invention.

As shown in FIG. 3, an acceleration tube 23 is provided around an exhaust pipe outlet 21 in the refrigerator 20 of the exhaust pipe 13 for sending air from the housing 10 of FIG. air in the refrigerator 20 between the acceleration tube air supply pipe 24 and the acceleration tube 23 is ejected from the acceleration tube air ejection port 25 .

As shown in FIG. 4, the air flow 24 is blown into the acceleration tube 23, and high-speed air is blown out from the acceleration tube air ejection port 25 provided around the exhaust pipe ejection port 21. Then, the vicinity of the exhaust pipe outlet 21 becomes a negative pressure state, the air in the exhaust pipe 13 of FIG. 3 is drawn out, and the air in the refrigerator 20 is rapidly mixed.

In this case, air is supplied to the acceleration tube air supply tube 24 from the air compressor 15 shown in FIG. Further, if air is supplied to the air compressor 15 from the air supply pipe 14 of FIG. .

The air flows as shown in FIG. 4, the vicinity of the exhaust pipe outlet 21 becomes negative pressure, the air inside the housing 10 shown in FIG. will be taken. Fig. 3 is a side view of the flexible duct connection unit 1 when used on a slope; Using the flexibility of the bellows portion 11, the flexible duct connection unit 1 can be installed along a slope.

FIG. 5 shows transition maintaining means in the third embodiment of the external humidifier for refrigerator according to the present invention.

If the water level in the water tank 11 decreases due to evaporation or the like and the water level drops too much, there is a risk that sufficient foaming will not be possible and the humidification function will deteriorate. In the water supply pipe 30 to the water tank 11, the movement of the ball tap 33 opens and closes the piston valve 34 to adjust the water level.

When the water level drops to the water injection start water level 35, the floating ball 31 descends and the support rod 32 connected to the floating ball 31 moves downward, whereby the ball tap 33 opens the piston valve 34 and water injection is started. When the water level rises to the water injection stop water level 36, the support rod 32 connected to the floating ball 31 moves upward, the ball tap 33 closes the piston valve 34, and water injection is stopped.

It goes without saying that the present invention is not limited to the structure described in the above embodiment, and the shape, structure, etc. of each part can be modified and changed as appropriate.
For example, in cold regions in winter, the temperature inside the housing may fall below the temperature inside the refrigerator, or the water in the water tank may freeze.
In addition, the air compressor for blowing air to the acceleration tube can be installed inside the refrigerator separately from the one that sucks air into the firing device, so that the air inside the refrigerator can be blown as it is, making it easier to mix with the humidified air. can.
Of course, it goes without saying that it is not limited to these.

The humidifier of the present invention can be used not only in refrigerators but also in freezers. It can also be used in refrigerators and the like mounted on transportation means such as vehicles and ships. These are also within the scope of the present invention.

1 Humidifier 10 Housing 11 Water tank 12 Foaming device 13 Exhaust pipe 14 Air supply pipe 15 Air compressor 16 Exhaust fan 17 Air supply fan 20 Refrigerator 21 Exhaust pipe outlet 22 Air supply pipe inlet 23 Acceleration pipe 24 Acceleration pipe air supply pipe 25 Acceleration Tube air jet port 26 Jet air flow to acceleration pipe 27 Jet air flow from acceleration pipe 30 Water supply pipe 31 Floating ball 32 Support rod 33 Ball tap 34 Piston valve 35 Water injection start water level 36 Water injection stop water level

Claims (3)

It comprises a housing having a water tank at its bottom, an air bubble generating means provided in the water tank, an exhaust pipe for sending air in the housing into a refrigerator, and an air supply pipe for feeding air in the refrigerator into the housing. An external humidifier for a refrigerator characterized by: 2. The external humidifier for a refrigerator according to claim 1, wherein a gas outlet of said exhaust pipe into said refrigerator is provided below a suction port of said air supply pipe in said refrigerator. 3. The gas outlet of the exhaust pipe into the refrigerator is provided with an acceleration pipe for ejecting the air in the refrigerator at high speed. External humidifier for refrigerator.

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