JP2008039249A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve temperature distribution on shelves in the refrigerator, in a direct cooling refrigerator having a function of draining defrosted water in a refrigerating room to the outside of the refrigerating room. <P>SOLUTION: A decorative cover 20 is provided between the back surface of an inner casing and the back surfaces of the shelves in the refrigerator to be opposed to the back surface of the inner casing with a space, two or more decorated cover holes 21 are formed into the decorated cover 20, ribs 22 extending toward the back surface of the inner casing are arranged under the decorated cover holes to receive cooling air, and the total area of the decorated cover holes positioned above the uppermost shelf in the refrigerator is enlarged larger than the total area of the decorated cover holes positioned between the lowermost shelf in the refrigerator and the shelf in the refrigerator above the lowermost shelf. Thereby, the uppermost shelf in the refrigerator can be also certainly cooled, and temperature distribution can be improved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a direct cooling refrigerator.

  Conventionally, a direct cooling method is generally employed in small refrigerators (see, for example, Patent Document 1).

11 is a cross-sectional view of a conventional refrigerator described in Patent Document 1, FIG. 12 is a front view of a refrigerator compartment of a conventional refrigerator described in Patent Document 1, and FIG. 13 is a conventional refrigerator described in Patent Document 1. The back surface perspective view of an inner box is shown. As shown in FIGS. 11, 12, and 13, the refrigerator body 1 has an outer shell structure in which a space surrounded by an outer box 2 and an inner box 3 is filled with a heat insulating material 4. The chamber is the freezer compartment 6. The refrigerator compartment 5 includes a first cabinet shelf 7 and a second cabinet shelf 8 on which food is placed, and the refrigerator compartment door 9 includes a first door shelf 10 and a second door shelf 11. The cooler 12 includes a refrigerator compartment cooling pipe 13 having a meandering shape for cooling the refrigerator compartment 5 and a freezer compartment cooling pipe 14 having a meandering shape for cooling the freezer compartment 6. The cooling pipe 13 is attached to the heat insulating material 4 side on the back surface of the inner box 3, and the freezer compartment cooling pipe 14 is attached to the heat insulating material 4 side of the plurality of surfaces of the inner box 3, and is cooled by heat conduction from the cooler 12. 3 cools the refrigerator compartment 5 and the freezer compartment 6. The compressor 15 for supplying the refrigerant to the cooler 12 is repeatedly operated and stopped, so that the refrigerator compartment 5 and the freezer compartment 6 are maintained at a predetermined temperature. Further, every time the compressor 15 is stopped, the temperature of the inner box 3 rises due to heat absorption from the outside of the refrigerating chamber 5. At this time, the ice adhering to the inner box 3 is melted and the defrosted water is melted. It flows down through the inner box 3. In order to discharge the defrosted water to the outside of the refrigerator compartment 5, a drain part 16 for receiving the defrosted water is provided at the lower back of the inner box 3, and a part of the drain part 16 includes the outside of the refrigerator compartment 5 and A drain pipe 17 that communicates is provided. This defrosting method is easy to use because it does not require the effort to wipe off the defrosted water in the refrigerator compartment, and it is also inexpensive, so it is generally used for small models.
Japanese Patent Laid-Open No. 7-120108

  However, in the refrigerator refrigerating room described in the above-mentioned conventional example, the defrost water is received by the drain part and discharged out of the refrigerator. The air moves downward in the refrigerator compartment. For this reason, although the inner shelf located in the lowermost stage cools well, there is a problem that the inner shelf located in the uppermost stage has a high temperature and the temperature distribution between the individual inner shelves is poor.

  This invention solves the said conventional subject, and provides the refrigerator which improved temperature distribution also in the direct-cooling-type refrigerator compartment.

  In order to solve the above conventional problems, the refrigerator of the present invention is provided with a decorative cover between the inner box rear surface and the inner shelf rear surface so as to face the inner box rear surface with a space therebetween. The decorative cover hole and a lower portion of the decorative cover hole are provided with ribs extending on the back of the inner box to receive cold air, and the decorative cover hole located between the lowermost shelf and the upper shelf The total area of the decorative cover holes located above the inner shelf located at the uppermost stage is made larger than the total area.

  As a result, the air cooled by the refrigerating room cooling pipe increases in specific gravity and moves downward in the refrigerating room, but is guided to the decorative cover hole by the rib and flows into the cabinet. The total area of the decorative holes positioned above the shelf in the uppermost store is larger than the total area of the decorative cover holes positioned between the lower store shelf and the upper store shelf. The inner shelf located in the upper stage can also be reliably cooled, and the temperature distribution can be improved.

  The refrigerator of the present invention is provided with a decorative cover between the inner box rear surface and the inner shelf rear surface so as to face the inner box rear surface with a space, and the decorative cover has a plurality of decorative cover holes and a decorative cover hole. A rib extending on the back surface of the inner box to receive cold air is provided at the lower part of the housing, and the back surface of the upper shelf in the cabinet and the decorative cover are brought into contact with each other.

  As a result, the air cooled by the refrigerating room cooling pipe increases in specific gravity and moves downward in the refrigerating room, but is guided to the decorative cover hole by the rib and flows into the cabinet. Since the rear face of the uppermost shelf and the decorative cover are in contact with each other, the uppermost shelf can receive all the cold air that has flowed in. For this reason, the shelf in the uppermost cabinet can also be reliably cooled, and the temperature distribution can be improved.

  Further, the refrigerator of the present invention includes a decorative cover and a heat insulating plate arranged in close contact with the back of the decorative cover so as to face the back of the inner box with a space between the back of the inner box and the back of the inner shelf, Each of the heat insulating plates is provided with a plurality of decorative cover holes and heat insulating plate holes facing each other, and a rib extending to the back surface of the inner box is provided below the heat insulating plate holes.

  As a result, the air cooled by the refrigerating room cooling pipe has a higher specific gravity and moves downward in the refrigerating room, but on the way, after passing through the heat insulating plate hole by the rib, it is led to the decorative cover hole and flows into the warehouse. Since the heat insulating plate is provided on the back of the decorative cover, the air flowing into the cabinet does not exchange heat with the air in the cabinet up to the decorative cover hole, so the temperature cooled by the cooling pipe is maintained. For this reason, the temperature of the air flowing into the uppermost cabinet shelf can be lowered, the uppermost cabinet shelf can be reliably cooled, and the temperature distribution can be improved.

  The refrigerator of the present invention is provided with a decorative cover between the inner box rear surface and the inner shelf rear surface so as to face the inner box rear surface with a space, and the decorative cover has a plurality of decorative cover holes and a decorative cover hole. A rib and a fan extending on the back of the inner box are provided at the lower part of the housing to receive cold air.

  As a result, the air cooled by the refrigerator cooling pipe is forcibly circulated into the cabinet when the fan is operating, and when the fan is stopped, the air has a higher specific gravity and moves below the refrigerator compartment. It is led to the hole and flows into the warehouse. Therefore, not only when the fan is operating, but also when the fan is stopped, the uppermost shelf in the cabinet can be reliably cooled, and the temperature distribution can be improved.

  In addition, the refrigerator of the present invention faces the first decorative cover and the top of the inner box which are provided so as to face the back of the inner box with a space between the back of the inner box and the rear of the inner shelf. And a second decorative cover provided with a fan connected to either the first decorative cover or the second decorative cover, the first decorative cover and the second decorative cover A plurality of first decorative cover holes and a second decorative cover hole are provided, and a rib extending at the back of the inner box is provided at the bottom of the first decorative cover hole to receive cold air. It is.

  As a result, the air cooled by the refrigerator cooling pipe is forcibly circulated into the cabinet when the fan is operating, and when the fan is stopped, the air has a higher specific gravity and moves below the refrigerator compartment. It is led to the hole and flows into the warehouse. Therefore, not only when the fan is operating, but also when the fan is stopped, the uppermost shelf in the cabinet can be reliably cooled, and the temperature distribution can be improved.

  The refrigerator according to the present invention is provided with a decorative cover between the inner box rear surface and the inner shelf rear surface so as to face the inner box rear surface with a space, and the decorative cover includes a plurality of decorative cover holes and lower portions of the decorative cover holes. Is provided with a rib extending on the back of the inner box in order to receive cold air, and is located on the uppermost level from the total area of the decorative cover holes located between the lowermost shelf and the upper cabinet shelf By increasing the total area of the decorative cover holes located above the shelf in the cabinet, the air cooled by the refrigerator cooling pipe has a higher specific gravity and moves to the lower part of the refrigerator compartment. To the inside of the warehouse. The total area of the decorative holes positioned above the shelf in the uppermost store is larger than the total area of the decorative cover holes positioned between the lower store shelf and the upper store shelf. The inner shelf located in the upper stage can also be reliably cooled, and the temperature distribution can be improved.

  The refrigerator of the present invention is provided with a decorative cover between the inner box rear surface and the inner shelf rear surface so as to face the inner box rear surface with a space, and the decorative cover has a plurality of decorative cover holes and a decorative cover hole. A rib extending to the back of the inner box to receive cold air is provided at the lower part of the cabinet, and the air cooled by the refrigerating room cooling pipe has a specific gravity by contacting the back of the uppermost shelf in the cabinet and the decorative cover. Becomes larger and moves downward in the refrigerator compartment, but is led to the decorative cover hole by the rib and flows into the cabinet. Since the rear surface of the uppermost shelf and the decorative cover are in contact, the uppermost shelf can receive all the cold air that has flowed in. For this reason, the shelf in the uppermost cabinet can also be reliably cooled, and the temperature distribution can be improved.

  Further, the refrigerator of the present invention includes a decorative cover and a heat insulating plate arranged in close contact with the back of the decorative cover so as to face the back of the inner box with a space between the back of the inner box and the back of the inner shelf, Each heat insulating plate is provided with a plurality of decorative cover holes and heat insulating plate holes facing each other, and a rib extending to the back of the inner box is provided below the heat insulating plate hole, so that it is cooled by the refrigerator cooling pipe. The specific air increases in specific gravity and moves downward in the refrigerator compartment. On the way, after passing through the heat insulating plate hole by the rib, it is led to the decorative cover hole and flows into the cabinet. Since the heat insulating plate is provided on the back of the decorative cover, the air flowing into the cabinet does not exchange heat with the air in the cabinet up to the decorative cover hole, so the temperature cooled by the cooling pipe is maintained. For this reason, the temperature of the air flowing into the uppermost shelf can be lowered, and the uppermost shelf can be reliably cooled, and the temperature distribution can be improved.

  The refrigerator of the present invention is provided with a decorative cover between the inner box rear surface and the inner shelf rear surface so as to face the inner box rear surface with a space, and the decorative cover has a plurality of decorative cover holes and a decorative cover hole. Since the lower part of the fan is provided with a rib and fan that extends to the back of the inner box to receive cold air, the air cooled by the refrigerator cooling pipe is forcibly circulated into the cabinet during fan operation, and the fan stops Sometimes the air has a higher specific gravity and moves below the refrigerating room, but on the way it is led to the decorative cover hole by the rib and flows into the cabinet. Therefore, not only when the fan is operating, but also when the fan is stopped, the uppermost shelf in the cabinet can be reliably cooled, and the temperature distribution can be improved.

  In addition, the refrigerator of the present invention faces the first decorative cover and the top of the inner box which are provided so as to face the back of the inner box with a space between the back of the inner box and the rear of the inner shelf. And a second decorative cover provided with a fan connected to either the first decorative cover or the second decorative cover, the first decorative cover and the second decorative cover A plurality of first decorative cover holes and a second decorative cover hole are provided, and the lower part of the first decorative cover hole is provided with a rib extending on the back of the inner box to receive cold air, thereby cooling the refrigerator compartment The air cooled by the pipe is forcibly circulated into the cabinet when the fan is operating, and when the fan is stopped, the air has a higher specific gravity and moves downward in the refrigerator compartment. And flows in. Therefore, not only when the fan is operating, but also when the fan is stopped, the uppermost shelf in the cabinet can be reliably cooled, and the temperature distribution can be improved.

  According to the first aspect of the present invention, a decorative cover is provided between the back of the inner box and the back of the inner shelf so as to face the rear of the inner box with a space, and the decorative cover has a plurality of decorative cover holes and a decorative cover. A rib extending on the back of the inner box is provided at the lower part of the hole to receive cold air, and the uppermost step is determined from the total area of the decorative cover holes located between the lowermost shelf and the upper shelf. By increasing the total area of the decorative cover holes located above the shelf in the cabinet, the air cooled by the refrigerator compartment cooling pipe increases in specific gravity and moves downward in the refrigerator compartment. It is led to the decorative cover hole and flows into the cabinet. The total area of the decorative holes positioned above the shelf in the uppermost store is larger than the total area of the decorative cover holes positioned between the lower store shelf and the upper store shelf. The inner shelf located in the upper stage can also be reliably cooled, and the temperature distribution can be improved.

  According to the second aspect of the present invention, a decorative cover is provided between the rear surface of the inner box and the rear surface of the inner shelf so as to face the rear surface of the inner box with a space, and the decorative cover has a plurality of decorative cover holes and a decorative cover. A rib extending to the back of the inner box to receive cold air is provided at the bottom of the hole, and the air cooled by the refrigerator cooling pipe is brought into contact with the back of the uppermost shelf in the cabinet and the decorative cover. Although the specific gravity increases and moves downward in the refrigerator compartment, it is led to the decorative cover hole by the rib and flows into the cabinet. Since the rear face of the uppermost shelf and the decorative cover are in contact with each other, the uppermost shelf can receive all the cold air that has flowed in. For this reason, the shelf in the uppermost cabinet can also be reliably cooled, and the temperature distribution can be improved.

  According to a third aspect of the present invention, a decorative cover and a heat insulating plate arranged in close contact with the back of the decorative cover so as to face each other with a space between the back of the inner box and the back of the inner shelf are provided between the rear of the inner box and the rear of the inner shelf. Each of the heat insulating plate is provided with a plurality of decorative cover holes and heat insulating plate holes facing each other, and a rib extending to the back of the inner box is provided at the bottom of the heat insulating plate hole, The cooled air has a higher specific gravity and moves downward in the refrigerator compartment. On the way, after passing through the heat insulating plate hole by the rib, it is guided to the decorative cover hole and flows into the cabinet. Since the heat insulating plate is provided on the back of the decorative cover, the air flowing into the cabinet does not exchange heat with the air in the cabinet up to the decorative cover hole, so the temperature cooled by the cooling pipe is maintained. For this reason, the temperature of the air flowing into the uppermost shelf can be lowered, and the uppermost shelf can be reliably cooled, and the temperature distribution can be improved.

  According to a fourth aspect of the present invention, a decorative cover is provided between the inner box rear surface and the inner shelf rear surface so as to face the inner box rear surface with a space, and the decorative cover has a plurality of decorative cover holes and a decorative cover. The lower part of the hole is provided with a rib and fan that extends to the back of the inner box to receive cold air, so that the air cooled by the refrigerator cooling pipe is forcibly circulated into the cabinet during fan operation. At the time of stopping, the air has a higher specific gravity and moves downward in the refrigerator compartment, but on the way, is guided to the decorative cover hole by the rib and flows into the cabinet. Therefore, not only when the fan is operating, but also when the fan is stopped, the uppermost shelf in the cabinet can be reliably cooled, and the temperature distribution can be improved.

  In the invention according to claim 5, a space is provided between the inner face of the inner box and the rear face of the inner shelf with a space between the inner face of the inner case and the upper face of the inner case. A second decorative cover provided to face each other is connected, and a fan is provided in either the first decorative cover or the second decorative cover, and the first decorative cover and the second decorative cover are provided on the first decorative cover and the second decorative cover. Is provided with a plurality of first decorative cover holes and a second decorative cover hole, and a rib extending at the back of the inner box to receive cold air at the lower part of the first decorative cover hole, The air cooled by the cooling pipe is forcibly circulated into the cabinet when the fan is operating, and when the fan is stopped, the air has a higher specific gravity and moves below the refrigerator compartment. Flows into. Therefore, not only when the fan is operating, but also when the fan is stopped, the uppermost shelf in the cabinet can be reliably cooled, and the temperature distribution can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the same reference numerals are given to the same configurations as those of the conventional example or the above-described embodiments, and detailed description thereof will be omitted. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a cross-sectional view of a refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a front view of the refrigerator compartment according to Embodiment 1 of the present invention.

  In FIGS. 1, 2 and 3, reference numeral 18 denotes a refrigerator body, and a decorative cover 20 is attached to the back surface of the inner box 3 of the upper refrigerator compartment 19. A decorative cover hole 21 is provided on the decorative cover 20. Reference numeral 22 denotes a rib that receives cold air, and is provided at a lower portion of the decorative cover hole 21 for each decorative cover hole 21. Part A shows the decorative hole 21 group located at the upper part of the first internal shelf 7, and part B shows the decorative cover 21 group located between the first internal shelf 7 and the second internal shelf 8. Show. The total hole area of the decorative hole 21 group of the A part is larger than the total hole area of the decorative hole 21 group of the B part.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The inner box 3 is cooled by the refrigerating room cooling pipe 13, and the air cooled by the inner box 3 increases in specific gravity and moves below the refrigerating room 19, but is guided to the decorative cover hole 21 by the rib 22 on the way. Since the hole area of the decorative hole 21 group of the A part is larger than the hole area of the decorative hole 21 group of the B part, the amount of cooled air flowing into the first internal shelf 7 increases and the first area The internal shelf 7 can be reliably cooled. That is, the temperature of the food placed on the first shelf 7 and the temperature of the food placed on the second shelf 8 are substantially the same, and the first shelf 7 and the second shelf 8. The freshness of the food is maintained on any shelf.

(Embodiment 2)
FIG. 3 is a sectional view of the refrigerator according to the second embodiment of the present invention. FIG. 4 is a front view of a refrigerating room according to Embodiment 2 of the present invention.

  1, 2 and 3, reference numeral 23 denotes a refrigerator body, and a decorative cover 25 is attached to the back of the inner box 3 of the upper refrigerator compartment 24 and is in contact with the back of the first internal shelf 7. . A decorative cover hole 26 is provided in the decorative cover 25. Reference numeral 27 denotes a rib for receiving cold air, and is provided at the lower portion of the decorative cover hole 26 for each decorative cover hole 26.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The inner box 3 is cooled by the refrigerating room cooling pipe 13, and the air cooled by the inner box 3 increases in specific gravity and moves below the refrigerating room 24, but is guided to the decorative cover hole 26 by the rib 27 on the way. The cooled air that has passed through the decorative cover hole 26 located at the top of the first internal shelf 7 is all in the first internal compartment because the back of the first internal shelf 7 is in contact with the decorative cover. It flows into the shelf 7. Thereby, the 1st warehouse shelf 7 can be cooled reliably. That is, the temperature of the food placed on the first shelf 7 and the temperature of the food placed on the second shelf 8 are substantially the same, and the first shelf 7 and the second shelf 8. The freshness of the food is maintained on any shelf.

(Embodiment 3)
FIG. 5 is a cross-sectional view of a refrigerator according to Embodiment 3 of the present invention. FIG. 6 is a front view of a refrigerator compartment according to Embodiment 3 of the present invention.

  1, 2 and 3, reference numeral 28 denotes a refrigerator main body, and a decorative cover 30 is attached to the back surface of the inner box 3 of the upper refrigerator compartment 29. A decorative cover hole 31 is provided on the decorative cover 30. Reference numeral 32 denotes a heat insulating plate arranged in close contact with the back surface of the decorative cover 30. A heat insulating plate hole 33 is provided so as to face the decorative cover hole 31. Reference numeral 34 denotes a rib for receiving cold air, which is provided below the heat insulating plate hole 33 and is integrally formed with the heat insulating plate 32.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The inner box 3 is cooled by the refrigerating room cooling pipe 13, and the air cooled by the inner box 3 has a higher specific gravity and moves below the refrigerating room 29. Guided to the cover hole 31. Since the heat insulating plate 32 is provided on the back of the decorative cover 30, the air flowing into the refrigerating chamber 29 does not exchange heat with the air in the cabinet until the decorative cover hole 31, so the temperature cooled by the cooling pipe 13 is maintained. is doing. For this reason, the temperature of the air flowing into the first internal shelf 7 can be lowered, and the first internal shelf 7 can be reliably cooled. That is, the temperature of the food placed on the first shelf 7 and the temperature of the food placed on the second shelf 8 are substantially the same, and the first shelf 7 and the second shelf 8. The freshness of the food is maintained on any shelf.

(Embodiment 4)
FIG. 7 is a cross-sectional view of a refrigerator according to Embodiment 4 of the present invention. FIG. 8 is a front view of a refrigerator compartment according to Embodiment 4 of the present invention.

  In FIGS. 1, 2 and 3, reference numeral 35 denotes a refrigerator main body, and a decorative cover 37 is attached to the back of the inner box 3 of the upper refrigerator compartment 36. A decorative cover hole 38 is provided on the decorative cover 37. Reference numeral 39 denotes a rib that receives cold air, and is provided at a lower portion of the decorative cover hole 38 for each decorative cover hole 38. A space surrounded by the inner box 3 and the decorative cover 37 constitutes an air path. A fan 40 forcibly sends cold air into the refrigerating chamber 36, and forcibly sends cold air that has passed through the air passage into the refrigerating chamber 36 from the discharge hole 41.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  During the operation of the fan 40, the fan 40 takes in air from the decorative cover hole 38, and the taken-in air is cooled by the refrigerator compartment cooling pipe 13. Thereafter, the cooled air is forcibly sent from the discharge hole 41 into the refrigerator compartment 36 by the fan 40. Since the air is forcibly circulated by the fan 40, the first internal shelf 7 and the second internal shelf 8 are uniformly cooled. In addition, when the fan 40 is stopped, the cooled and increased specific gravity of the air in the vicinity of the refrigerating room cooling pipe 13 moves below the refrigerating room 36, but is led to the decorative cover hole 38 by the rib 39 and in the refrigerating room 36. The first internal shelf 7 is reliably cooled. Therefore, the first internal shelf 7 can be reliably cooled not only when the fan 40 is operating but also when the fan 40 is stopped, and the temperature distribution can be improved. That is, the temperature of the food placed on the first shelf 7 and the temperature of the food placed on the second shelf 8 are substantially the same, and the first shelf 7 and the second shelf 8. The freshness of the food is maintained on any shelf.

(Embodiment 5)
FIG. 9 is a cross-sectional view of a refrigerator according to Embodiment 5 of the present invention. FIG. 10 is a front view of a refrigerator compartment according to Embodiment 5 of the present invention.

  1, 2 and 3, reference numeral 42 denotes a refrigerator main body, and a first decorative cover 44 is attached to the back surface of the inner box 3 of the upper refrigerator compartment 43. A plurality of first decorative cover holes 45 are provided on the first decorative cover 44. Reference numeral 46 denotes a rib that receives cold air, and is provided at a lower portion of the first decorative cover hole 45 for each first decorative cover hole 45. A second decorative cover 48 having a plurality of second decorative cover holes 47 is attached to the top surface of the inner box 3. The first decorative cover 44 and the second decorative cover 48 are connected to each other, and the space surrounded by the back and top surfaces of the inner box 3 and the first decorative cover 44 and the second decorative cover 48 forms an air passage. ing. Reference numeral 49 denotes a fan that forcibly sends cold air into the refrigerator compartment 43 using this air passage.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  During the operation of the fan 49, the fan 49 takes in air from the first decorative cover hole 45, and the taken-in air is cooled by the refrigerator compartment cooling pipe 13. Thereafter, the cooled air is forcibly sent from the second decorative cover hole 47 into the refrigerator compartment 43 by the fan 49. Since the air is forcibly circulated by the fan 49, the first internal shelf 7 and the second internal shelf 8 are uniformly cooled. Since the second decorative cover hole 47 is close in position to the first door shelf 10 and the second door shelf 11, the first door shelf 10 and the second door shelf 11 are also cooled. Further, when the fan 49 is stopped, the cooled and increased specific gravity of the air near the refrigerating chamber cooling pipe 13 moves below the refrigerating chamber 43, but is led to the first decorative cover hole 45 by the rib 46 and is refrigerated. It flows in into the chamber 43 and the 1st warehouse shelf 7 is also cooled reliably. Therefore, the first internal shelf 7 can be reliably cooled not only when the fan 49 is operating but also when the fan 49 is stopped, and the temperature distribution can be improved. That is, the temperature of the food on any shelf is almost the same, and the freshness of the food is maintained.

  As described above, even if the refrigerator according to the present invention is a direct-cooled refrigerator, the freshness of the food can be maintained regardless of which shelf the food is placed on by controlling the air flow and improving the temperature distribution. Can do.

Sectional drawing of the refrigerator by Embodiment 1 of this invention The front view of the refrigerator compartment by Embodiment 1 of this invention Sectional drawing of the refrigerator by Embodiment 2 of this invention Front view of the refrigerator compartment according to Embodiment 2 of the present invention Sectional drawing of the refrigerator by Embodiment 3 of this invention Front view of a refrigerator compartment according to Embodiment 3 of the present invention Sectional drawing of the refrigerator by Embodiment 4 of this invention Front view of a refrigerator compartment according to Embodiment 4 of the present invention Sectional drawing of the refrigerator by Embodiment 5 of this invention Front view of a refrigerator compartment according to Embodiment 5 of the present invention Cross-sectional view of a conventional refrigerator Front view of the refrigerator compartment of a conventional refrigerator Rear perspective view of the inner box of a conventional refrigerator

Explanation of symbols

2 Outer box 3 Inner box 4 Heat insulating material 7 First storage shelf 8 Second storage shelf 13 Refrigeration room cooling pipe 16 Drain portion 17 Drain pipe portion 18, 23, 28, 35, 42 Refrigerator main body 19, 24, 29, 36, 43 Refrigerated room 20, 25, 30, 37, Decorative cover 21, 26, 31, 38 Decorative cover hole 22, 27, 34, 39, 46 Rib 32 Heat insulation plate 33 Heat insulation plate hole 40, 49 Fan 41 Discharge Hole 44 first decorative cover 45 first decorative cover hole 47 second decorative cover hole 48 second decorative cover

Claims (5)

  A space composed of an outer box and an inner box is filled with a heat insulating material, and a refrigerator room cooling pipe having a meandering shape is installed in the refrigerating room of the direct-cooling refrigerator attached to the heat insulating material side on the back of the inner box. In order to drain the water adhering to the back of the inner box to the outside of the refrigeration room, the drain part that receives the water and a part of the drain part communicate with the outside of the refrigeration room, In the refrigerator where the drain pipe part for draining is provided at the lower part of the back of the inner box, a decorative cover is provided between the back of the inner box and the back of the inner shelf with a space facing the back of the inner box, The decorative cover has a plurality of decorative cover holes and ribs extending to the back of the inner box to receive cool air at the bottom of the decorative cover hole, and is positioned between the lower shelf and the upper shelf It is located above the inner shelf located at the uppermost level from the total area of the decorative cover holes. Refrigerator, characterized in that to increase the total area of the decorative cover hole.   A space composed of an outer box and an inner box is filled with a heat insulating material, and a refrigerator room cooling pipe having a meandering shape is installed in the refrigerating room of the direct-cooling refrigerator attached to the heat insulating material side on the back of the inner box. In order to drain the water adhering to the back of the inner box to the outside of the refrigeration room, the drain part that receives the water and a part of the drain part communicate with the outside of the refrigeration room, In the refrigerator where the drain pipe part for draining is provided at the lower part of the back of the inner box, a decorative cover is provided between the back of the inner box and the back of the inner shelf with a space facing the back of the inner box, The decorative cover has a plurality of decorative cover holes and ribs extending to the back of the inner box to receive cold air at the lower part of the decorative cover hole, and the decorative cover is in contact with the back of the uppermost shelf in the cabinet A refrigerator characterized by.   A space composed of an outer box and an inner box is filled with a heat insulating material, and a refrigerator room cooling pipe having a meandering shape is installed in the refrigerating room of the direct-cooling refrigerator attached to the heat insulating material side on the back of the inner box. In order to drain the water adhering to the back of the inner box to the outside of the refrigeration room, the drain part that receives the water and a part of the drain part communicate with the outside of the refrigeration room, In the refrigerator where the drain pipe part for draining is provided at the lower part of the back of the inner box, between the back of the inner box and the back of the shelf in the cabinet, the decorative cover and the back of the decorative cover so as to face the back of the inner box The decorative cover and the heat insulating plate are each provided with a plurality of decorative cover holes and a heat insulating plate hole facing each other, and a rib extending to the back of the inner box at the bottom of the heat insulating plate hole A refrigerator characterized by that.   A space composed of an outer box and an inner box is filled with a heat insulating material, and a refrigerator room cooling pipe having a meandering shape is installed in the refrigerating room of the direct-cooling refrigerator attached to the heat insulating material side on the back of the inner box. In order to drain the water adhering to the back of the inner box to the outside of the refrigeration room, the drain part that receives the water and a part of the drain part communicate with the outside of the refrigeration room, In the refrigerator where the drain pipe part for draining is provided at the lower part of the back of the inner box, a decorative cover is provided between the back of the inner box and the back of the inner shelf with a space facing the back of the inner box, A refrigerator, wherein the decorative cover is provided with a plurality of decorative cover holes, a rib extending at the back of the inner box to receive cold air, and a fan at a lower portion of the decorative cover hole.   A space composed of an outer box and an inner box is filled with a heat insulating material, and a refrigerator room cooling pipe having a meandering shape is installed in the refrigerating room of the direct-cooling refrigerator attached to the heat insulating material side on the back of the inner box. In order to drain the water adhering to the back of the inner box to the outside of the refrigeration room, the drain part that receives the water and a part of the drain part communicate with the outside of the refrigeration room, In the refrigerator in which a drain pipe part for draining is provided at the lower part of the back of the inner box, the first provided to face the back of the inner box with a space between the back of the inner box and the back of the inner shelf The decorative cover and the second decorative cover provided so as to face each other with a space between the top of the inner box and the fan are provided in either the first decorative cover or the second decorative cover, A plurality of first makeup cover holes in the first makeup cover and the second makeup cover Provided a second decorative cover holes, refrigerator in the lower part of the first decorative cover hole, characterized in that a rib extending in the inner box back to receive cold air.

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