KR0153293B1 - Humidification apparatus for vegetable storage of a refrigerator - Google Patents

Abstract

The present invention relates to a humidifier of a refrigerator vegetable room, which enables the efficient control of the appropriate humidity and temperature by improving the duct part communicating with the vegetable room in the cold air circulation duct of the refrigerator.

The present invention is a vegetable container (37) installed in a predetermined long detachable structure inside the vegetable chamber (13); A guide duct 21b formed at the front side, and a splitting duct 21 having a humidifying tank 21a and a heater 23 on the inner and outer surfaces of the rear lower plate, respectively; A valve plate (22) mounted on the guide rail (21b) so as to be slid linearly and having a rack portion (22a) and an opening portion (22b); A servo motor (24) having a pinion gear (25) engaged with the rack portion (22a) and providing a driving force for moving the valve plate (22); An open side switch 27 and a closed side switch 28 for detecting a movement position of the valve plate 22; And it is installed on the upper end of the inside of the vegetable chamber 13, and includes a humidity sensor 29 to form a predetermined output according to the humidity.

Accordingly, by dividing the vegetable compartment, the duct portion humidification portion and the refrigerant portion of the refrigerant circulation duct of the refrigerator, it is possible to efficiently control the appropriate humidity and temperature at the same time, thereby improving the freshness of the vegetables and increasing the shelf life.

Description

Humidifier of refrigerator vegetable room

1 is a side view of a conventional refrigerator terminating in a partial cross section.

2 is an exemplary view showing the structure of the vegetable compartment according to the present invention.

3 is an exploded perspective view of the valve tube drive of FIG.

4 a and b is a configuration diagram showing the operating state of FIG.

* Explanation of symbols for main parts of the drawings

2: cooler 4: cooling fan

6: compressor 11: freezer

12: cold storage room 13: vegetable room

14: back duct 15: recovery duct

16: humidification duct (conventional) 17: vegetable barrel (conventional)

21 classification duct 21a humidification tank

21b: guide rail 22: valve tube

22a: rack portion 22b: opening

23 heater 24 servo motor

25: pinion gear 26: humidification duct (present invention)

27: open side switch 28: closed side switch

29: humidity sensor 37: vegetable container (invention)

A, B: Cold air flow path

The present invention relates to a humidity control apparatus of a refrigerator, and more particularly, to a humidifier of a refrigerator vegetable compartment, which enables efficient control of appropriate humidity and temperature by improving a duct portion communicating with the vegetable compartment in a cold air circulation duct of the refrigerator. .

1 is a side view of a conventional refrigerator terminating in a conventional cross-sectional view.

In general, the refrigerator has a refrigerant circulation device and a cold air circulation duct disposed at the rear when the door is formed from the front, and the freezer compartment 11, the refrigerator compartment 12, the vegetable compartment 13, which are controlled at a predetermined temperature therein. Other functional chambers (such as rapid freezing chambers, rapid thawing chambers, etc.) are formed.

The refrigerant circulation device is composed of a cooler (2), a compressor (6), a cooling fan (4), and the like. In the compressor 6, the high-temperature, high-pressure gaseous refrigerant is cooled in a condenser (not shown) and liquid (condensed), and then passes through the cooler 2 to take the surrounding heat and vaporize it again.

The cold air circulation duct is composed of a back duct 14, a recovery duct 15, a humidification duct 16, and the like. The low temperature cold air passing through the cooler 2 is lowered by the cooling fan 4 facing in the opposite direction, partly to the freezer compartment 11 and partly to the rear duct 14 disposed at the rear of the refrigerator. Part of the cold air coming down to the rear duct 14 is sent to the vegetable compartment 13 through the humidification tank duct 16, and part of the cold air is collected again with the cold of the freezer compartment 11, along the recovery duct 15. (2) As soon as the cycle of one cycle is completed.

At this time, if the damper (not shown) which changes the capacity | capacitance of the cooling fan 4 installed in the freezer compartment 11 and the refrigerating compartment 12, and adjusts air volume is turned on and off by a suitable period, the freezer compartment 11, the refrigerating compartment 12, Since the temperatures of the vegetable chamber 13 and other functional chambers are differentially controlled, the user can use an appropriate space according to the optimum storage temperature or use of the food.

On the other hand, foods that need to maintain freshness, such as vegetables, are stored in the vegetable compartment 13 installed in a drawer type inside the vegetable compartment 13, and the vegetable compartment 13 is connected to the humidification duct 16 from the rear duct 14. You will be supplied with adequate moisture.

Normally, the supply of water is performed by installing a separate humidifying tank (not shown) on the humidifying duct 16 and filling predetermined water therein. In this case, a heating device such as a heater is used to increase the amount of water generated. It may be used in combination.

By such a configuration, in order to maintain the humidity of the vegetable chamber 13 in a predetermined value or more, the heat generation amount of the heater must also be increased, so that the temperature of the vegetable chamber 13 is increased, which shortens the shelf life of the vegetables.

Accordingly, an aspect of the present invention is to provide a humidification apparatus of a refrigerator vegetable room that enables efficient control of appropriate humidity and temperature by improving a portion of the duct communicating with the vegetable room in the refrigerant circulation duct of the refrigerator. .

In order to achieve the above object, the present invention provides a vegetable container 37 installed in a predetermined detachable structure inside the vegetable chamber 13; A guide duct 21b formed at the front side, and a splitting duct 21 having a humidifying tank 21a and a heater 23 on the inner and outer surfaces of the rear lower plate, respectively; A valve plate (22) mounted on the guide rail (21b) so as to be slid linearly and having a rack portion (22a) and an opening portion (22b); A servo motor (24) having a pinion gear (25) engaged with the rack portion (22a) and providing a driving force for moving the valve plate (22); An open side switch 27 and a closing side switch 28 for detecting a movement position of the valve plate 22; And it is installed on the upper end inside the vegetable chamber 13, and provides a humidifier of the refrigerator vegetable room, characterized in that it comprises a humidity sensor 29 to form a predetermined output according to the humidity.

At this time, the vegetable container 37 is installed so that the side and the lower surface at a constant interval with the vegetable chamber 13 to form an air flow path.

In addition, the fractionation duct 21 is bisected into the cold air flow path (A) flowing inside the vegetable container 37 and the cold air flow path (B) flowing through the lower surface of the vegetable container 37 in the humidification duct (26). Is installed.

Moreover, the opening part 22b of the said valve plate 22 is formed in the position which deflected left or right in the same cross-sectional area as the opening part of the said splitting duct 21, and the rack part 22a of the humidification tank duct 26 is carried out. It is mounted to protrude to the outside.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

2 is an exemplary view showing the structure of the vegetable compartment according to the present invention.

Unlike the conventional humidification duct 16 having only a humidification tank, the present invention forms a humidification duct 26 in which the classification duct 21 is built, and mounts a vegetable container 37 having a predetermined long detachable structure. .

The vegetable container 37 is provided so that the side surface and the lower surface may maintain an interval with the vegetable chamber 13 to form an air flow path. In the state in which the vegetable container 37 is mounted in the refrigerator, the rear upper end of the vegetable container 37 contacts one end of the humidification duct 26 to maintain airtightness.

The dividing duct 21 forms a lower plate (or bottom surface) into a concave shape, and a humidifying tank 21a and a heater 23 are provided on the inner and outer surfaces of the lower plate, respectively.

The humidifier 21a is a place where water for providing moisture to the vegetable chamber 13 is stored, and a separate water replenishment mechanism (not shown) is installed to maintain a predetermined water level (for example, about 5 mm). Although the heater 23 varies depending on the size of the vegetable chamber 13, a capacity of about 6 W is provided, and a heat insulating material is attached to the heater 23 so as not to radiate heat.

The sorting duct 21 is provided to divide the cold air flow path A flowing through the inside of the vegetable container 37 into the cold air flow path B flowing through the lower surface of the lower part of the vegetable container 37. That is, a part of the cold air flowing into the humidifying duct 26 humidifies the inside of the vegetable container 37 while the humidity is high while passing through the humidifying tank 21a, and a part of the cold air is passed through the lower part of the sorting duct 21. The cylinder 37 is indirectly cooled outside.

At this time, the valve plate 22, the servomotor 24, and the like are used to control the amount of air flowing into the flow dividing duct 21 as described below.

FIG. 3 shows an exploded perspective view of the valve plate drive of FIG. 2, and FIGS. 4 a and b show the construction showing the operating state of FIG.

A guide rail 21b having a shape of bending the iron plate is formed in front of the splitting duct 21, and the valve plate 22 is mounted on the guide rail 21b so as to be able to slide linearly. The valve plate 22 has a rack portion 22a and an opening portion 22b. The servomotor 24 with pinion gear 25 meshing with the rack portion 22a provides a force for moving the valve plate 22.

At this time, the opening portion 22b of the valve plate 22 is formed at a position biased left or right in the same cross-sectional area as the opening portion of the splitting duct 21, and the rack portion 22a of the humidifying duct 26 It is mounted to protrude to the outside.

On the other hand, an open side switch 27 and a closed side switch 28 which function as a micro switch are used to detect the movement position of the valve plate 22. When the valve plate 22 moves to the right and reaches the open side switch 27, the opening 22b is in a state in which the flow split duct 21 is completely opened (see FIG. 4A). When the valve plate 22 moves to the left and reaches the closing side switch 28, the flow split duct 21 is completely shut off (see FIG. 4B).

At the upper end of the inside of the vegetable chamber 13 is provided a humidity sensor 29 for forming a predetermined output according to the humidity. In a refrigerator employing a microcomputer circuit for multi-function control, the input of the humidity sensor 29 is connected to the microcomputer circuit.

The microcomputer, which receives the input of the humidity sensor 29, always detects a change in humidity in the vegetable container 37 and sorts the servomotor 24 by forward or reverse rotation in a direction in which an appropriate humidity (for example, 80 ± 5%) is maintained. The cross-sectional area of the duct 21 is changed.

When the effect of applying this invention is measured compared with the conventional case, it is as follows. Here, (1), (2), and (3) are conventional structures without the classification duct 21, and (4) is the structure of the present invention having the classification duct 21.

(1) When there is no humidification duct (16) and the air volume is Q

Temperature: 2 ℃ ± 0.5 ℃ Humidity: 45 ± 5%

(2) When the humidification duct (16) is present and the air volume is Q

Temperature: 6 ℃ ± 0.5 ℃ Humidity: 65 ± 5%

(3) When there is a humidifying duct (16) and the air volume is smaller than Q

Temperature: 7 ℃ ± 0.5 ℃ Humidity: 85 ± 5%

(4) When the humidification duct (16) is present and the air volume is larger than Q

Temperature: 45 ℃ ± 0.5 ℃ Humidity: 80 ± 5%

In the case of (4), the temperature of the vegetable compartment 13 is increased, but the temperature is close to 2 to 4 ° C, which is an appropriate temperature range, and the humidity is appropriately maintained without a large temperature rise as in the case of (2) and (3). I can keep it.

As described above, the humidifier of the refrigerator vegetable compartment of the present invention divides the duct portion communicating with the vegetable compartment into the humidification portion and the refrigerant portion of the refrigerant circulation duct of the refrigerator, thereby enabling effective control of proper humidity and temperature at the same time, thereby improving the freshness of the vegetable. It has the effect of increasing the shelf life.

While the invention has been shown and described with respect to certain preferred embodiments, it will be appreciated that the invention can be modified and modified in various ways without departing from the spirit or scope of the invention as set forth in the following claims. One of ordinary skill in the art will readily know.

Claims (5)

A refrigerator having a cold air circulation duct composed of a back duct, a recovery duct, a humidifying duct, and the like, which supplies cold air from the humidifying duct to the vegetable chamber 13: installed in a predetermined long detachable structure inside the vegetable chamber 13 Being a vegetable container 37; A guide duct 21b formed at the front side, and a splitting duct 21 having a humidifying tank 21a and a heater 23 on the inner and outer surfaces of the rear lower plate, respectively; A valve plate (22) mounted on the guide rail (21b) so as to be slid linearly and having a rack portion (22a) and an opening portion (22b); A servo motor (24) having a pinion gear (25) engaged with the rack portion (22a) and providing a driving force for moving the valve plate (22); An open side switch 27 and a closed side switch 28 for detecting a movement position of the valve plate 22; And a humidity sensor (29) installed at an upper end of the inside of the vegetable chamber (13) and forming a predetermined output according to humidity. The humidifier of the vegetable compartment of the refrigerator, characterized in that the side and the lower surface of the vegetable container (37) is installed so as to form a flow path of the air at a constant distance from the vegetable chamber (13). According to claim 1, wherein the sorting duct 21 is inside the humidification duct 26, the cold air flow path A flowing through the inside of the vegetable container 37 and the cold air flow path flowing through the lower surface of the vegetable container 37 (B). Humidifier of the refrigerator vegetable room, characterized in that it is installed to nourish. The opening 22b of the valve plate 22 is formed at a position biased left or right in the same cross-sectional area as the opening of the split duct 21, and the rack portion 22a is a humidifying duct. Humidifier of the refrigerator vegetable room, characterized in that mounted to protrude to the outside of the (26). The method of claim 1, wherein the signal of the humidity sensor 29 is received by the microcomputer and always detects a change in the humidity in the vegetable container 37, the microcomputer to forward or reverse the servo motor 24 in a direction in which proper humidity is maintained. A humidifier of a refrigerator vegetable room, characterized in that to rotate to change the cross-sectional area of the sorting duct (21).