JP2018066497A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator in which frost formation hardly occurs in a refrigeration chamber discharge duct, regarding frost formation by a cold air backflow in the refrigeration chamber discharge duct while a blower is stopped.SOLUTION: A refrigerator which includes a freezing chamber 6 at an upper part and a refrigeration chamber 7 at a lower part includes: a cooler 8 arranged on a back surface of the freezing chamber 6; a coil cover 9 located in front of the cooler 8, for constituting an air passage for cold air blown by a blower, and made of a heat insulation material; cold air adjustment means provided at the coil cover 9, and for adjusting the cold air in the refrigeration chamber 7 manually; and a refrigeration chamber discharge duct 16 arranged being connected below the cold air adjustment means. As the refrigeration chamber discharge duct 16 includes a cold air backflow prevention material, collision between warm air in the refrigeration chamber and the cold air from a cooling chamber can be prevented by the cold air backflow prevention material while the blower 14 is stopped, and frost formation in the duct can be prevented.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a refrigerator provided with a cold air duct.

  There is a refrigerator that has a freezer compartment at the top and a refrigerator compartment at the bottom, and manually adjusts the amount of cold air (opening area) in a discharge duct that blows cool air from the cooler on the back of the freezer compartment to the refrigerator compartment.

Hereinafter, the conventional refrigerator will be described with reference to the drawings. (For example, see Patent Document 1)
Hereinafter, the conventional refrigerator will be described with reference to the drawings.

2 is a central section of a conventional refrigerator, and FIG. 3 is a front view of the refrigerator. In FIGS. 2 and 3, the refrigerator body 1 is filled between the outer box 2 and the inner box 3 and between the outer box 2 and the inner box 3. It is comprised from the heat insulating material 4 made. The inside of the main body is partitioned into two upper and lower chambers by a partition wall 5, and the upper portion is a freezer compartment 6 and the lower portion is a refrigerator compartment 7. A cooler 8 extending in the vertical direction is disposed on the inner surface of the freezer compartment 6. A coil cover 9 made of synthetic resin and a fan cover 10 made of synthetic resin located on the front surface of the coil cover 9 are attached to the front surface of the cooler 8. The fan cover 10 has a cold air outlet 11 on the upper side and a suction port 12 on the lower side.

  Then, the cool air cooled by the cooler 8 is guided by a blower 14 from an air outlet 13, an air passage 13 formed between the fan cover 10 and the coil cover 9 and penetrating the partition wall 5 to reach the refrigerator compartment 7. Yes. A return air path (not shown) for cooling air from the refrigerator compartment 7 is provided in the partition wall 5. A plate-like shutter (not shown) attached between the fan cover 10 and the coil cover 9 is movable in the left-right direction in the air passage 13 and manually adjusts the flow rate of the cold air flowing through the air passage 13. To do. A cold room discharge duct 116 for distributing cold air to the cold room is provided at an outlet of the air passage 13 on the cold room 7 side.

JP-A-1-203877

  However, in the conventional refrigerator, the warm air including moisture in the refrigerator compartment flows backward in the refrigerator discharge duct 116 when the blower is stopped, and the cold air that has passed through the air passage 13 from the cooling chamber in the air passage 13 There was a problem that stagnation of air occurred due to the collision, thereby causing frost formation in the air passage 13 or the refrigerator discharge duct 116.

  This invention solves the said conventional subject, and it aims at providing the refrigerator in which the inside of a duct does not form frost easily at the time of a fan stop.

In order to solve the above-described conventional problems, a refrigerator according to the present invention is a refrigerator having a freezer compartment at the top and a refrigerator compartment at the bottom, a cooler disposed on the back of the freezer compartment, and a front face of the cooler. A coil cover made of a heat insulating material that is located and constitutes an air passage for the cool air by the blower, a cold air adjusting means for manually adjusting the cold air in the refrigerator compartment provided in the coil cover, and a lower cover of the cold air adjusting means. A cooler cooler having a refrigerating room discharge duct and a cold air backflow prevention material in the refrigerating room discharge duct.

  Thereby, when the blower is stopped, collision of warm air in the refrigerator compartment and cold air from the cooling chamber can be prevented by the cool air backflow prevention material, and frost formation in the duct can be prevented.

  The refrigerator according to the present invention can provide a highly reliable refrigerator by providing a cold air backflow prevention material to prevent resistance from rising and preventing frost formation in the duct.

The front view which looked at the refrigerator compartment discharge duct of the refrigerator in Embodiment 1 of this invention from the back side Central cross-sectional view of a conventional refrigerator Front view of a conventional refrigerator

  The invention described in claim 1 is a refrigerator having a freezer compartment in the upper part and a refrigerator compartment in the lower part, a cooler disposed on the back surface of the freezer compartment, and a cooler disposed on the front face of the cooler by the blower. A coil cover made of a heat insulating material constituting the air path; a cold air adjusting means for manually adjusting the cold air in the cold room provided in the coil cover; and a cold room discharge duct arranged below the cold air adjusting means. The cooler cooler provided with the cold air backflow prevention material in the cold room discharge duct can prevent collision of warm air in the cold room and cold air from the cooling room when the blower is stopped by the cold air backflow prevention material. Frosting can be prevented.

  According to a second aspect of the present invention, in the first aspect of the present invention, the cold air backflow prevention material includes a first shielding material that shields a part of the upstream of the refrigerating chamber discharge duct. It is possible to prevent the air in the room from rising from one side of the discharge port and backflowing.

  According to a third aspect of the present invention, in the second aspect of the present invention, the cold air backflow prevention material includes a second shielding material that shields a part of the downstream of the refrigerating chamber discharge duct. It is possible to prevent the air in the room from rising from both sides of the discharge port and backflowing.

  According to a fourth aspect of the present invention, in the third aspect of the invention, the first shielding material and the second shielding material extend from the left and right opposing surfaces, and the respective end portions wrap in the vertical direction. Yes, it is possible to prevent the air in the refrigerator compartment when the blower is stopped from rising from both sides of the discharge port and passing back between the first shielding material and the second shielding material.

  According to a fifth aspect of the present invention, in the third or fourth aspect of the present invention, the discharge port of the refrigerating chamber discharge duct branches left and right, and a guide member that flows cold air to the left and right is provided on the opposing surface of the second shielding member. Therefore, when the blower is in operation, cold air can be evenly flowed to the left and right, thereby preventing variations in the internal temperature.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of a refrigerator discharge duct of a refrigerator according to Embodiment 1 of the present invention as viewed from the back side. In addition, about the same component as the past, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  In FIG. 1, the refrigerator discharge duct 16 provided at the outlet of the air passage 13 on the refrigerator compartment 7 side causes the warm air containing moisture in the refrigerator compartment to flow backward in the refrigerator compartment discharge duct 16 when the blower 14 is stopped. A cold air backflow prevention material is provided so that air stagnation does not occur due to collision with the cold air that has passed through the air passage 13 from the cooling chamber in the air passage 13.

  Specifically, in the refrigerator compartment discharge duct 16, there is a molded heat insulating member 19 formed of foamed polystyrene or the like constituting the refrigerator compartment discharge duct air passage 20, and a part of the upstream of the refrigerator compartment discharge duct air passage 20. The first shielding member 21 that protrudes in the horizontal direction from the side wall surface of the molded heat insulating member 19 toward the opposite side wall surface is provided.

  Further, the cold room discharge duct air passage 20 in the cold room discharge duct 16 faces the first shielding material 21 so as to shield a part of the downstream of the cold room discharge duct downstream from the first shielding material 21. A second shielding member 22 that protrudes in the horizontal direction from the side wall surface of the molded heat insulating member 19 toward the opposite side wall surface is provided.

  And the 1st shielding material edge part 23 which is the front-end | tip part of the 1st shielding material 21, and the 2nd shielding material edge part 24 which is the front-end | tip part of the 2nd shielding material 22 are arrange | positioned so that it may wrap in a perpendicular direction. Yes.

  Further, the most downstream portion of the refrigerating chamber discharge duct air passage 20 serving as a discharge port to the refrigerating chamber branches left and right, and has a refrigerating chamber discharge left 26 and a refrigerating chamber discharge right 27.

  Then, the second shielding is performed in order to uniformize and discharge the flow of the cold air bent by the second shielding material 22 while preventing the cold air flow from being biased from the cold room discharge port left 26 and the cold room discharge right 27. A cold air guide member 25 is provided on the opposing surface of the material 22.

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

  The cool air cooled by the cooler 8 is guided by the blower 14 to the air outlet 13, the air passage 13 formed between the fan cover 10 and the coil cover 9, penetrating the partition wall 5 and reaching the refrigerator compartment 7. The cool air discharged from the outlet 11 cools the freezer compartment 6 and returns to the cooler 8 from the lower suction port 12.

  Further, cold air is discharged from the refrigerator discharge duct 16 provided at the outlet of the air passage 13 on the refrigerator compartment 7 side to the refrigerator compartment 7. The amount of cold air to the refrigerator compartment 7 is adjusted to the discharge opening area in the air passage 13 by a plate-like shutter attached between the fan cover 10 and the coil cover 9, and the refrigerator compartment 7 is cooled to a predetermined temperature. The

  When the blower 14 is stopped, warm air including moisture in the refrigerator compartment 7 rises in the refrigerator discharge duct 16, but in this embodiment, the air passage 13 is provided at the outlet of the refrigerator compartment 7 side. In the refrigerator compartment discharge duct 16, when the blower 14 is stopped, warm air including moisture in the refrigerator compartment flows backward in the refrigerator compartment discharge duct 16, and falls in the air passage 13 from the cooling chamber through the air passage 13. Since the cold air backflow prevention material is provided so that air stagnation does not occur due to collision with cold air, frost formation in the duct 16 can be prevented.

Further, as a cold air backflow preventing material, a refrigerating room discharge duct 16 has a molded heat insulating member 19 formed of foamed polystyrene or the like constituting the refrigerating room discharge duct air passage 20, and upstream of the refrigerating room discharge duct air passage 20. Since the 1st shielding material 21 which protruded in the horizontal direction toward the opposing side wall surface from the side wall surface of the shaping | molding heat insulation member 19 is provided so that some may be shielded, when the air blower 14 stops, the inside of the refrigerator compartment 7 store | warehouse | chamber It can suppress reliably that the warm air containing moisture raises the inside of the refrigerator compartment discharge duct 16. FIG.

  Further, the cold room discharge duct air duct 20 in the cold room discharge duct 16 faces the first shielding material 21 so as to shield a part of the downstream of the cold room discharge duct downstream from the first shielding material 21. Since the second shielding member 22 that protrudes in the horizontal direction from the side wall surface of the molded heat insulating member 19 toward the opposite side wall surface is provided, warm air including moisture in the refrigerator compartment 7 is stored in the refrigerator compartment when the blower 14 is stopped. It is possible to further reliably suppress the rise in the discharge duct 16.

  Also, the first shielding material end 23 which is the tip of the first shielding material 21 and the second shielding material end 24 which is the tip of the second shielding material 22 are arranged so as to wrap in the vertical direction. Therefore, when the blower 14 is stopped, it is possible to further reliably prevent warm air including moisture in the refrigerator compartment 7 from rising in the refrigerator compartment discharge duct 16.

  In addition, the most downstream part of the refrigerating chamber discharge duct air passage 20 serving as a discharge port to the refrigerating chamber branches to the left and right, and has a refrigerating chamber discharge port left 26 and a refrigerating chamber discharge port right 27, A cold air guide is provided on the opposing surface of the second shielding member 22 in order to discharge the bent cold air in a uniform manner while suppressing the deviation of the flow of the cold air from the cold chamber discharge port left 26 and the cold chamber discharge right 27. Since the member 25 is provided, the cool air can be evenly flowed to the left and right in the cabinet when the blower 14 is operated, and the humidity in the refrigerator compartment 7 is included when the blower 14 is stopped while improving the temperature distribution in the cabinet. It is possible to suppress the warm air from rising in the refrigerator compartment discharge duct 16.

  In addition, the 1st shielding material 21 and the 2nd shielding material 22 as a cold-air backflow prevention material in this Embodiment have the frost formation suppression effect in the refrigerator compartment discharge duct 16 also with each structure.

  As mentioned above, since the refrigerator concerning this invention can prevent the frost formation in a duct, it can be applied also to uses, such as a commercial refrigerator which has the same structure.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 4 Heat insulating material 5 Partition wall 6 Freezing room 7 Refrigeration room 8 Cooler 9 Coil cover 10 Fan cover 11 Outlet 12 Inlet 13 Air path 14 Blower 15 Shutter 16 Refrigerating room discharge duct 19 Molding Heat insulation member 20 Refrigerating room discharge duct air passage 21 First shielding material (cold air backflow prevention material)
22 Second shielding material (cold air backflow prevention material)
23 1st shielding material edge part 24 2nd shielding material edge part 25 Guide member 26 Refrigeration room discharge port left 27 Refrigeration room discharge port right

Claims (5)

In a refrigerator having a freezer compartment in the upper part and a refrigerator compartment in the lower part, it comprises a cooler disposed on the back surface of the freezer compartment, and a heat insulating material that is located on the front face of the cooler and constitutes an air passage for cool air by a blower A coil cover, a cold air adjusting means for manually adjusting the cold air in the cold room provided in the coil cover, and a cold room discharge duct arranged to be connected to the lower side of the cold air adjusting means, and a cold air reverse flow in the cold room discharge duct Refrigerator with prevention material. The refrigerator according to claim 1, wherein the cold air backflow prevention material includes a first shielding material that shields a part of the upstream of the refrigerating room discharge duct. The refrigerator according to claim 2, wherein the cold air backflow prevention material includes a second shielding material that shields a part of the downstream of the refrigerator compartment discharge duct. The refrigerator according to claim 3, wherein the first shielding material and the second shielding material extend from the left and right facing surfaces, and each end portion is wrapped in a vertical direction. The refrigerator according to claim 3 or 4, wherein a discharge port of the refrigerator compartment discharge duct is branched to the left and right, and a guide member is provided on the opposing surface of the second shielding member to flow cold air to the left and right.

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