KR200345578Y1 - Cooling air circulation apparatus for refrigerator - Google Patents

Abstract

The present invention relates to a cold air circulation device of the refrigerator, and more particularly to a structure of the circulation fan for circulating the cold air inside the storage compartment.

The cold air circulation system of the refrigerator according to the present invention is a rotation axis of the motor for rotating the circulation fan extends through the storage compartment inner plate to the inside of the storage compartment, forcibly circulating the cold air through the evaporator in the middle of the rotation shaft located in the inner cold flow passage The first circulation fan is installed, and the second circulation fan is installed at the end of the rotating shaft protruding toward the storage chamber. In addition, the front of the second circulation fan is provided with a protective cover open to the outer peripheral portion to protect the second circulation fan, the protective cover is provided with a transparent member. In addition, a plurality of suction ports are formed in the fan installation portion of the inner plate where the second circulation fan is installed so that a part of the cold air circulated by the operation of the first circulation fan flows toward the second circulation fan. Therefore, the user can visually check the rotation operation of the second circulation fan, thereby increasing the reliability of the product.

Description

Cooling air circulation apparatus for refrigerator

The present invention relates to a cold air circulation device of the refrigerator, and more particularly to a structure of the circulation fan for circulating the cold air inside the storage compartment.

In general, a refrigerator is a home appliance installed with components of a refrigeration cycle therein to supply cold air generated from the refrigerator to a storage compartment so that freshness of various foods can be maintained for a long time.

In the conventional refrigerator, as illustrated in FIG. 1, a storage compartment 2 in which a storage is stored is formed in the main body 1, and a door for opening and closing the storage compartment 2 in the front opening of the storage compartment 2. (3) is installed.

In addition, an evaporator 4 for generating cold air is provided on the rear wall located inside the storage compartment 2, and the cold air that has undergone heat exchange while passing through the evaporator is installed inside the storage compartment 2 above the evaporator 4. A circulation fan 5 for forced circulation is provided, and a cold air guide passage 6 for guiding the flow of cold air forcedly blown by the circulation fan 5 is formed. In addition, a cold air suction port 8 through which cold air is sucked in the cold air guide flow path 6 is formed, and a plurality of cold air discharge ports 9 are formed in the discharge part.

In the conventional refrigerator configured as described above, when the circulating fan 5 is driven, cold air inside the storage compartment 2 flows into the evaporator 4 through the cold air inlet 8 of the cold air guide flow path and exchanges heat with the evaporator 4. The circulation of the cold air is made by repeating the process of supplying the cold air to the storage chamber 2 again through the cold air discharge port 9 by the blowing force of the circulation fan 5.

However, this type of conventional refrigerator has a circulation device for circulating cold air, especially a circulation fan 5 for mechanical operation, etc., which is configured inside the rear wall, so that a consumer using the refrigerator can visually check the operation state of the refrigerator. The structure cannot be confirmed.

However, the recent trend of the consumer has been to consider not only the configuration for achieving the original purpose of the device when purchasing a product, but also additional functions of the product, and harmony with surrounding objects as one of household items. In other words, the added value of visual factors such as design and color, as well as the various functions of the product, has become an important criterion for selecting a product.

According to this flow, recent refrigerators are provided with additional devices such as an auxiliary door or a water dispenser, which makes it easy to take out a part of the storage from the outside without opening the door 3, and the user can directly see the operation state of the device. In addition to providing visual beauty, there is a trend to satisfy the needs of consumers by increasing the reliability of the product.

The present invention has been devised in view of the above points, and an object of the present invention is to provide a user with visual beauty and reliability of a product by allowing a user to directly see a rotational motion of a circulation fan circulating cold air. It is to provide a cold air circulation of the refrigerator.

1 is a cross-sectional view showing a schematic internal configuration and a cold air flow of a conventional refrigerator.

2 is a cross-sectional view showing the internal structure of a refrigerator to which a cold air circulation device according to the present invention is applied.

3 is a cross-sectional view showing the configuration of a cold air circulation system according to the present invention.

4 is a detailed view of the portion “A” of FIG. 3.

Explanation of symbols on the main parts of the drawings

10: main body, 11: storage room,

11a: freezer compartment, 11b: refrigerator compartment,

12: partition wall, 13: freezer door,

14: refrigerator door, 16: evaporator,

17: cooling chamber, 19: cold air flow path,

20: cold air outlet, 21: cold air intake,

22: inner plate, 23: cold air guide plate,

31: the first circulation fan, 32: the second circulation fan,

33: drive motor, 34: rotating shaft,

35: fan mounting part, 36: inlet port,

40: protective cover, 41: support leg,

44: opening part.

A cold air circulation device according to the present invention for achieving the above object, the storage compartment formed in the interior of the main body, the cooling compartment is provided with an evaporator partitioned with the storage compartment to generate cold air therein, the cooling chamber and the compartment compartment An inner plate installed inside the storage compartment, a circulation fan forcing the internal air of the storage compartment to circulate air to exchange heat with the evaporator, and an inner side of the cooling chamber to drive the circulation fan. In the refrigerator having a drive motor to be installed,

The rotation shaft of the drive motor extends through the inner plate to the inside of the storage chamber, and the circulation fan is a first circulation fan installed in the middle of the rotation shaft located inside the inner plate, and into the storage chamber. And a second circulation fan installed at an end of the extended rotating shaft, and a protective cover provided with a transparent member is installed on the front surface of the second circulation fan.

In addition, the inner plate adjacent to the second circulation fan is formed with a suction port through which a portion of the cold air circulated by the driving of the first circulation fan flows toward the second circulation fan, and the cold air sucked into the suction port. It is a configuration characterized in that the opening is provided on the outside of the protective cover to be discharged.

Hereinafter, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in detail. 2 is a cross-sectional view showing the internal structure of a refrigerator to which a cold air circulation device according to the present invention is applied, and FIG. 3 is a cross-sectional view showing the configuration of the cold air circulation device according to the present invention. 4 is a detail view of the "A" part of FIG.

As shown in the refrigerator, a refrigerator 10 according to the present invention is provided with a main body 10 having a storage compartment 11 for storing food therein, and the storage compartment 11 is provided with an open front portion. In addition, the storage compartment 11 is partitioned into the upper freezer compartment 11a and the lower refrigerating compartment 11b by the partition wall 12 which partitions the internal space, and the front compartment openings of the freezer compartment 11a and the refrigerating compartment 11b are provided. The freezing chamber door 13 and the refrigerating chamber door 14 which open and close are provided.

In addition, the freezer compartment (11a) and the refrigerating chamber (11b) is provided with a shelf 15 consisting of a multi-layer to facilitate the storage of the stored matter, the food and beverages of small size on the inner surface of the freezer door 13 and the refrigerating chamber door (14). A multi-stage door shelf (not shown) is provided to store the back.

And, the rear wall of the freezer compartment (11a) and the refrigerating chamber (11b) is provided with an evaporator 16 for generating cold air, respectively, and the circulation fan 30 for forcibly circulating the cold air of the freezer compartment and the refrigerating compartment above each evaporator (16). This is installed.

In addition, a cold air guide passage 19 is formed at the rear of each storage compartment 11 to guide the flow of cold air circulated by the driving of the circulation fan 20, and the cold air guide passage 19 is a storage compartment 11. It is composed of a space between the inner plate 22 is installed on the inner back surface of the) and the cold air guide plate 23 is installed on the inner side and the rear inner spaced by a predetermined interval. Here, the inner plate 22 partitions the cooling chamber 17 and the storage chamber 11 in which the evaporator 16 is installed, and the cold air guide plate 23 partitions a part of the cooling chamber 17 back to the cold air guide oil. (19) will be formed.

In addition, a plurality of cold air discharge ports 20 are formed in the inner plate 19 so that the cold air guided into the cold air guide passage 19 is discharged into the storage chamber 11, and the cold air circulated on one side of the inner plate 22 is formed. The cold air suction port 21 is formed to allow the evaporator 16 to flow into the cooling chamber 17 in which the evaporator 16 is installed.

Meanwhile, as illustrated in FIG. 3, the cold air circulation fan 30 according to the present invention includes a first circulation fan 31 installed inside the cold air guide passage 19 and an inner plate 22 of the storage compartment 11. The second circulation fan 32 is installed in the inner side of the storage fan 11 so that the user can visually see the rotational motion of the circulation fan 30. The second circulation fan 32 is exposed to the inside of the storage chamber 11. It is installed. (The present embodiment has the same structure as the cold air circulation structure of the freezer compartment and the cold air circulation structure of the refrigerating compartment, and the effects thereof are the same.

In more detail, the drive motor 33 for driving the circulation fan 30 is installed inside the rear wall, and the rotating shaft 34 extending from the drive motor 33 is the inner plate 22 of the storage chamber 11. ), The end of the rotating shaft 34 extends long forward to expose the interior of the storage chamber (11).

In addition, a first circulation fan 31 for forcibly circulating cold air circulating through the evaporator 16 is installed at the center of the rotating shaft 34 located inside the inner plate 22, and penetrates the inner plate 22. At the end of the rotating shaft 34 extending toward the storage chamber 11, a second circulation fan 32 is installed to allow the user to see the rotation of the circulation fan.

That is, in the cold air circulation device according to the present invention, two fans are installed on the rotating shaft 34 extending from one drive motor 34, and one of the cold air circulation devices circulates the cold air guide passage 19 and the cooling chamber 17. The other is located inside the storage compartment 11 so that the user can see the rotation of the fan.

At this time, the inner wall 22 of the storage chamber is provided with a fan mounting portion 35 formed so that the position where the circulation fan is installed is slightly recessed to the rear side so that the second circulation fan 32 can be easily installed. A plurality of suction ports 36 are formed at 35 to allow a portion of the cold air circulated by the driving of the first circulation fan 31 to flow into the second circulation fan 32.

In addition, a protective cover 40 is installed on the front surface of the second circulation fan 32 so as to protect the second circulation fan 32 which is rotated. The protective cover 40 is formed in a disc shape, and the user The material is provided with a transparent material so that the rotational motion of the second circulation fan 32 can be visually checked.

In addition, the protective cover 40 is provided with a plurality of support legs 41 in the rim portion so that the protective cover 40 is spaced apart from the front portion of the second circulation fan 32 to maintain a fixed state, The support leg 41 is fitted to the edge of the fan mounting portion 35 of the inner plate to be fixed. At this time, the fan mounting portion 35 is formed with a coupling groove 43 to which the support leg 41 is fitted and coupled, and the support jaw 41 is formed with a locking jaw 42 for preventing the support leg from being separated.

In addition, the protective cover 40 is composed of an opening 44 whose outer circumference is opened so that the cold air introduced into the suction port 36 by the rotation of the second circulation fan 32 can be discharged in the outer circumferential direction.

This configuration allows the cold air introduced into the suction port 36 to be discharged to the opening 44 so that cold air is circulated on the inner surface of the protective cover 40 at all times, so that the protective cover 40 is not blurred by moisture or the like and is always transparent. This is to maintain the state.

Next will be described the operation of the refrigerator cold air circulator according to the present invention configured as described above.

When the driving motor 33 which rotates the first circulation fan 31 and the second circulation fan 32 is rotated, the cold air of the storage chamber 11 passes through the cold air suction port 21 of the cold air guide passage 19. 16 is introduced into the cooling chamber 17 is installed, the cold air introduced into the cooling chamber is changed to cooler cold while heat exchange with the evaporator (16).

The cold air that has been heat-exchanged in the evaporator 16 flows along the cold air guide passage 19 by driving the first circulation fan 31, and is discharged back to the storage chamber 11 through the cold air outlet 20 so as to discharge the cold air. There is a circulation.

In addition, a part of the cold air discharged by the driving of the first circulation fan 31 is introduced into the second circulation fan 32 through the suction port 36 formed in the fan mounting portion 35 of the inner plate 22. Then, the second circulation fan 32 is discharged to the outer opening 44 of the protective cover.

Since cold air flows on the inner surface of the protective cover 40 as described above, the protective cover 40 is always maintained in a transparent state, and the user can visually check the rotation operation of the second circulation fan 32.

As described in detail above, the cold air circulation device of the refrigerator according to the present invention can obtain the decorative effect inside the storage compartment as the user can visually see the operation of the second circulation fan installed inside the storage compartment, The user can directly check the operation of the device has the advantage of increasing the reliability of the product.

Claims (3)

A storage chamber formed inside the main body, a cooling chamber partitioned from the storage chamber and configured to generate cold air therein, an inner plate provided inside the storage chamber so as to partition the cooling chamber and the storage chamber, and air in the storage chamber. In the refrigerator having a circulating fan for forcibly circulating the internal air of the storage compartment to exchange heat with the evaporator, and a drive motor installed on one side of the cooling chamber to drive the circulation fan, The rotating shaft 34 of the driving motor 33 penetrates the inner plate 22 to extend into the storage chamber 11, and the circulation fan of the rotating shaft 34 is located inside the inner plate. The first circulation fan 31 is installed in the middle, and the second circulation fan 32 is installed at the end of the rotary shaft 34 extending inwardly of the storage chamber, the second circulation fan 32 of The cold air circulation system of the refrigerator, characterized in that the front cover is provided with a protective cover 40 is provided with a transparent member. The method of claim 1, A suction port through which a portion of cold air circulated by the driving of the first circulation fan 31 flows toward the second circulation fan 32 in the inner plate 22 adjacent to the second circulation fan 32. (36) is formed, the cold air circulation apparatus of the refrigerator, characterized in that the opening 44 is provided on the outside of the protective cover 40 so that the cold air sucked into the suction port (36) is discharged. The method of claim 2, On the outer circumferential portion of the protective cover 40, the protective cover 40 is coupled to the inner plate 22, and a predetermined length is extended toward the inner plate so that the opening 44 is formed. Cold air circulation apparatus of the refrigerator, characterized in that a plurality of support legs 41 are fitted to be coupled to.