JP5903570B2 - refrigerator - Google Patents

Description

  The present invention particularly relates to a refrigerator provided with a low-temperature storage chamber inside a refrigerator compartment.

  Conventionally, a refrigerator having a chilled chamber at the bottom of a refrigerated chamber is known (for example, Patent Document 1). In this type of refrigerator, a refrigerator compartment duct is provided on the top of the refrigerator compartment, a chilled chamber duct is provided on the back of the refrigerator compartment, and a cooler and a fan are provided on the back of the refrigerator compartment. Then, the air (cold air) cooled by the cooler is sent to the refrigerator compartment and the chilled compartment via the refrigerator compartment duct and the chilled compartment duct by a fan, so that each of the refrigerator compartment and the chilled compartment has a predetermined temperature. Cooling control is performed.

  In addition, there is a refrigerator provided with a top surface duct for sending cold air from above on the top surface of a partitioned storage room such as a chilled room (for example, Patent Document 2).

JP 2004-278959 A JP-A-63-83568

  In recent years, there has been a demand for a storage room with a temperature range lower than that of the chilled room inside the refrigerated room, because of the desire to preserve the seafood and meat for a relatively long time while maintaining the original taste and freshness. .

  The temperature of the refrigerator compartment is usually 3 ° C. ± 2 ° C., the temperature of the chilled room is usually 0 ° C. ± 1 ° C., while the temperature of the cold storage room is, for example, −3 ° C. ± 1.5 ° C. . For this reason, when a low-temperature storage chamber is provided in the refrigerator compartment, the temperature difference from the refrigerator compartment becomes larger than when a conventional chilled chamber is provided.

  For this reason, there has been a risk of dew condensation on the outside of the low temperature storage chamber that comes into contact with the air in the refrigerator compartment. In addition, relatively warm air in the refrigerator compartment may enter the low temperature storage chamber through the gap between the door and the storage chamber, and there may be condensation near the door of the low temperature storage chamber.

  And the subject that the user of a refrigerator feels unpleasant that dew condensation arises in the storage room vicinity occurred.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a refrigerator in which condensation does not occur outside the storage room or near the door even when a low-temperature storage room is provided inside the refrigerating room. And

  In order to solve the above-described conventional problems, the refrigerator of the present invention includes a refrigerating room, a storage room provided in the refrigerating room and having a temperature lower than that of the refrigerating room, and a top surface provided on a top surface of the storage room. A duct, a door provided on the front surface of the storage chamber, and a front wall provided below the door are provided, and a vent hole is provided on the front wall.

  Thereby, it is possible to prevent the vicinity of the door of the low-temperature storage chamber from condensing.

  The refrigerator of the present invention can prevent dew condensation in the vicinity of the storage room.

Front view of the refrigerator in Embodiment 1 of the present invention Side surface sectional drawing of the refrigerator in Embodiment 1 of this invention Side surface sectional drawing of the storage chamber in Embodiment 1 of this invention The perspective view of the front wall part of the storage case in Embodiment 1 of this invention Side surface sectional drawing of the storage chamber in Embodiment 2 of this invention Side surface sectional drawing of the storage chamber in Embodiment 3 of this invention

1st invention is provided in the front of the refrigerating room, the storage room provided in the inside of the refrigerating room, the temperature lower than the refrigerating room, the top surface duct provided in the top surface of the storage room, and And a front wall provided below the door, and a vent hole provided in the front wall, and the top air duct of the top duct includes an upper heat insulating member and a lower heat insulating member. The air outlet communicating with the top surface air passage is composed of a lower air outlet provided in the lower heat insulating member and a front air outlet provided between the upper heat insulating member and the lower heat insulating member, and below the front air outlet. the vent hole is provided in Rutotomoni, the top duct duct cover positioned compartment inside the storage compartment, the lower insulating member provided in contact with the inner surface of the duct cover, disposed above the lower heat insulating member The upper heat insulating member, and the periphery of the top surface A support frame is provided, and the duct cover is fixed by the support frame so that the top air passage is fixed between the top plate and the duct cover, and between the upper heat insulating member and the top plate. An air layer is provided on the rear surface of the refrigerator by bringing the air layer into contact with the convex portion that is provided behind the upper heat insulating member and protrudes upward, and the inner surface of the top plate. This creates a flow of air that flows from the top duct to the front wall, and this flow can diffuse relatively warm air that stays near the inner surface of the door. Will not occur. Further, by providing an air layer between the heat insulating material provided inside the top surface duct and the top plate provided on the top surface of the top surface duct, the air layer in addition to the heat insulating material is stored in the storage chamber. In order to insulate between the inside and the top plate, the outer surface of the top plate is not condensed even if the thickness of the heat insulating material provided inside the top surface duct is reduced. In addition, the storage chamber forms an air layer with a simple configuration in order to form the air layer by bringing a convex portion provided behind the heat insulating material and projecting upward into contact with the inner surface of the top plate. The present invention can be easily realized.

2nd invention is provided in the front surface of the refrigerating room, the storage room provided in the inside of the refrigerating room, the temperature lower than the refrigerating room, the top surface duct provided on the top surface of the storage room, And a vent hole provided below the center in the height direction of the door, and the top air duct of the top duct comprises an upper heat insulating member and a lower heat insulating member, and the top air passage The blower outlet communicated with the lower heat insulation member includes a lower air outlet provided in the lower heat insulating member and a front air outlet provided between the upper heat insulating member and the lower heat insulating member, and the vent hole is provided below the front air outlet. The top surface duct is a duct cover located inside the storage chamber, the lower heat insulating member provided in contact with the inner surface of the duct cover, and the upper heat insulating member disposed above the lower heat insulating member. A support frame is provided around the top surface. The top cover is fixed between the top plate and the duct cover by fixing the duct cover by the support frame, and an air layer is provided between the upper heat insulating member and the top plate, The air layer is formed so that the thickness increases toward the rear side of the refrigerator by contacting the convex portion provided behind the upper heat insulating member and protruding upward and the inner surface of the top plate. A flow of air flowing from the surface duct to the lower side of the door is generated, and the relatively warm air staying in the vicinity of the inner surface of the door can be diffused by the flow, so that no condensation occurs near the inner surface of the door. .

  In the third invention, since the front wall of the first invention is the back surface of the handle portion of the container provided in the storage chamber, it is possible to prevent the vicinity of the handle portion of the container touched by the user's hand from condensing. Therefore, it does not make the user feel uncomfortable.

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

(Embodiment 1)
FIG. 1 is a front view of the refrigerator according to Embodiment 1 of the present invention. In FIG. 1, a refrigerator 21 is a refrigerator including a double door and includes a plurality of compartments in the heat insulating box 11.

  Specifically, a quick freezing room 24, a freezing room 25, and a vegetable room 26 that are provided in the refrigerator compartment 22, the ice making room 23, and the ice making room 23 from the upper part and can be quickly frozen are provided.

  In the opening of each chamber, for example, a heat insulating door filled with a foam heat insulating material such as urethane is provided. Specifically, the refrigerator compartment 22 is provided with a first door 31a and a second door 31b that close the opening of the heat insulating box so as to be opened and closed.

  In addition, the ice making room 23, the quick freezing room 24, the freezing room 25, and the vegetable room 26 are drawer-type rooms, and are provided with a drawer-type door 32, a door 33, a door 34, and a door 35, respectively.

  A door decorative plate 36 is attached to the second door 31b along the side opposite to the hinge of the second door 31b, that is, the outer edge of the open end. An operation display means 37 is attached to the door decorative plate 36 from the back side, and the attachment position is a height position that is about the eye level of a general user or worker.

  FIG. 2 is a side sectional view of the refrigerator 21. As shown in FIG. 2, the top surface portion of the heat insulating box 11 has a shape with a stepped recess toward the back surface of the refrigerator 21, and a compressor 12 is formed by forming a machine room in the stepped recess. The components of the refrigeration cycle such as a dryer (not shown) for removing moisture are accommodated. That is, the machine room in which the compressor 12 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 22. By providing a machine room in the rear region of the uppermost part of the refrigeration room 22 that has become a dead space that is difficult to reach, the capacity of the freezer room 25 and the vegetable room 26 can be increased, and storage capacity and Usability can be greatly improved.

  A plurality of shelves 61 supported by convex portions (not shown) provided on the side surfaces of the refrigerator compartment 22 are provided inside the refrigerator compartment 22. In addition, a storage chamber 63 partitioned by a top plate 62 is provided at the bottom of the refrigerator compartment 22. On the front surface of the storage chamber 63, a dedicated front door 64 is provided on the front surface separately from the first door 31a and the second door 31b. With the front door 64 and the top plate 62, the storage chamber 63 can efficiently maintain a temperature lower than the temperature in the refrigerator compartment 22.

  On the rear surface of the refrigerator 21, there are provided a cooling chamber 71 for generating cold air, a conveying air passage 72 for the cold air to each chamber, and a rear panel 73 for insulating the refrigeration chamber 22 and the conveying air passage 72. That is, the conveyance air path 72 is formed between the inner box 11 a of the heat insulating box 11 and the back panel 73. The cooling chamber 71 is provided on the back surfaces of the freezing chamber 25 and the vegetable chamber 26, and includes a cooler 74 inside.

  In the upper space of the cooler 74, a cooling fan 75 for forcing convection of the cool air cooled by the cooler 74 is arranged, and in the lower space of the cooler 74, frost and ice adhering to the cooler 74 and its surroundings are removed. A radiant heater 76 made of glass tube for frosting is provided, and further, a drain pan 77 for receiving defrost water generated at the time of defrosting, a drain tube 78 penetrating from the deepest part to the outside of the chamber is configured, An evaporating dish 79 is formed outside the warehouse on the downstream side.

  The rear panel 73 that forms the conveying air path 72 is made of a resin cover (not shown) disposed on the refrigerator compartment 22 side and a heat insulating member that is disposed on the rear side of the refrigerator 21 and forms the conveying air path 72 (see FIG. (Not shown). The rear panel 73 opens into the refrigerating chamber 22 and communicates with the refrigerating chamber outlet (not shown) that blows out the cool air generated in the cooling chamber 71 into the refrigerating chamber 22 and the storage chamber 63. A storage chamber outlet (not shown) for supplying cold air generated in the cooling chamber 71 into the storage chamber 63 is provided.

A twin damper (not shown) that adjusts the amount of cold air flowing to the refrigerator outlet and the amount of cold air flowing to the storage chamber outlet is provided at the lower portion of the conveyance air passage 72. By adjusting the amount of cold air flowing between the refrigerator compartment 22 and the storage compartment 63 by this twin damper, the temperatures in the refrigerator compartment 22 and the storage compartment 63 can be individually adjusted.

  The refrigerated room 22 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it is not frozen for refrigerated storage, and the vegetable room 26 is set to 2 ° C. to 7 ° C., which is set to a temperature that is the same as or slightly higher than the refrigerated room 22 The freezer compartment 25 is set in a minus temperature zone and is usually set at −22 ° C. to −15 ° C. for frozen storage. For example, −30 ° C. and −25 ° C. for improving the frozen storage state. It may be set at a low temperature. The storage chamber 63 is a so-called partial chamber, and is set to a temperature setting lower than that of the refrigerating chamber 22 from −4.5 ° C. to −1.5 ° C. The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 22, and an ice storage container ( (Not shown).

  The configuration of the storage chamber 63 will be further described with reference to FIG. FIG. 3 is a side sectional view of the storage chamber according to the first embodiment. As shown in FIG. 3, a top surface duct unit 80 including a top surface air passage 81 is provided below the top plate 62. The top surface duct unit 80 is mainly disposed above the lower heat insulating member 83, a resin duct cover 82 located inside the storage chamber 63, a lower heat insulating member 83 provided in contact with the inner surface of the duct cover 82. It is comprised from the upper heat insulation member 84 made.

  The top plate 62 is made of transparent or translucent glass or resin. A resin support frame 89 is provided around the top plate 62. The duct cover 82 is resinous and is fixed to the support frame 89. The upper heat insulating member 84 and the lower heat insulating member 83 are formed by molding a heat insulating material such as foamed resin typified by foamed polystyrene, and are fixed to the lower side of the top plate 62 by a duct cover 82.

  The top air passage 81 is formed between the upper heat insulating member 84 and the lower heat insulating member 83 by the upper heat insulating member 84 and the lower heat insulating member 83. Further, the top air passage 81 communicates with a lower air outlet 85 provided in the lower heat insulating member 83 and a front air outlet 86 provided between the upper heat insulating member 84 and the lower heat insulating member 83. Further, slits are provided at locations corresponding to the lower outlet 85 and the front outlet 86 of the duct cover 82.

  Further, the top surface air passage 81 communicates with the conveying air passage 72 via a storage chamber outlet 87 provided in the back panel 73 on the back side of the storage chamber 63. A seal member is provided around a portion corresponding to the storage chamber outlet 87 on the back surface of the top duct unit 80 in order to prevent cold air leakage from a connection portion between the storage chamber outlet 87 and the top surface air passage 81. (Not shown) is provided.

  On the upper surface of the rear side of the upper heat insulating member 84 (the connection side with the storage chamber outlet 87), a convex portion 84a protruding upward is provided. The convex portion 84 a is provided in a rib shape over the entire width of the upper heat insulating member 84 in the left-right direction. An air layer 88 is formed between the top plate 62 and the upper heat insulating member 84 by the protrusions 84 a coming into contact with the lower side (inner surface) of the top plate 62. And the air layer 88 is formed so that the thickness is thicker toward the back side of the refrigerator 21.

  The center of the storage chamber outlet 87 in the vertical direction is provided below the center of the top surface air passage 81 in the vertical direction. For this reason, on the connection side of the top air passage 81 with the storage room outlet 87, a top air passage inclined portion 81a is provided.

  The bottom side of the storage chamber 63 is formed by a storage case 65 that opens upward. The storage case 65 is disposed on the upper surface of the heat insulating partition that partitions the refrigerator compartment 22 via the ribs 51, and can be drawn back and forth. The ribs 51 are long protrusions in the front-rear direction provided with protrusions 51 a on the front and rear, and are provided on the left and right sides of the upper surface of the heat insulating partition that partitions the refrigerator compartment 22.

  The front wall 91, which is the front wall surface of the storage case 65, is lower than the back wall 92 and side walls (not shown) so that the user can easily put food in and out of the storage case 65. Yes. A handle portion 93 is provided at the upper end of the front wall 91 so as to extend horizontally forward from the upper end and hang down so as to cover the upper portion of the front wall 91. A vent hole 94 is provided in the front wall 91 located on the back side of the handle portion 93.

  The back wall 92 is inclined so that the opening of the storage case 65 becomes larger toward the rear side. The bottom surface of the storage case 65 has an uneven shape.

  On the lower surface of the support frame 89 on the front surface of the top plate 62, support holes (not shown) for supporting the front door 64 so as to be opened and closed are provided on the left and right sides. The support holes support the support shafts 64a provided at the upper end of the front door 64, respectively, so that the front door 64 can be rotated from the front to the top to be opened and closed. The front door 64 includes a protrusion (not shown) protruding in the direction of the storage case 65, and when the user pulls the storage case 65 forward, a part of the storage case 65 is protruded from the front door 64. The front door 64 is configured to be pushed up to open the front door 64.

  FIG. 4 is a perspective view of the front wall 91 portion of the storage case 65 in the present embodiment. As shown in FIG. 4, the vent hole 94 is provided with a plurality of horizontally long slit-shaped holes in a horizontal row over the entire width of the storage case 65. The vent hole 94 is provided on the back surface of the hanging portion of the handle portion 93 so that the user cannot see it from the front of the refrigerator 21.

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

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 12 is condensed to some extent by a condenser (not shown), and further disposed on the side surface and back surface of the refrigerator 21 main body and the front opening of the refrigerator 21 main body. The refrigerant 21 is condensed and liquefied through a refrigerant pipe (not shown) while preventing condensation of the main body of the refrigerator 21 and reaches a capillary tube (not shown). Thereafter, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 12, and becomes a low-temperature and low-pressure liquid refrigerant and reaches the cooler 74. Here, the low-temperature and low-pressure liquid refrigerant exchanges heat with air by the operation of the cooling fan 75, and the refrigerant in the cooler 74 evaporates.

  Then, cool air for cooling each chamber is generated in the cooling chamber 71, and the generated cool air is sent to each chamber. For example, it is sent to the refrigerating room 22 or the storage room 63 through the conveying air passage 72 via the twin damper. Thereby, cooling control is performed to a predetermined temperature for each chamber.

  The cold air flowing into the top surface duct unit 80 from the storage chamber outlet 87 through the transport air passage 72 flows upward from the storage chamber outlet 87 to the top surface side by the top surface air passage inclined portion 81a. . Then, it flows forward through the top surface air passage 81 and flows into the storage chamber 63 from the plurality of lower air outlets 85 and the front air outlet 86. Then, the cool air cools the inside of the storage chamber 63, rises on the back wall 92 provided to be inclined from the bottom surface of the storage case 65, and then flows downward. Thereafter, the cool air that has cooled the storage chamber 63 returns to the cooling chamber 71 again through a return air passage (not shown) provided on the back side of the refrigerator 21.

  A part of the cold air blown out from the front outlet 86 flows along the inner wall of the front door 64 toward the vent hole 94. Then, after flowing out of the storage chamber 63 through the vent hole 94, the direction of the flow is turned downward by the handle portion 93, passing through the gap between the storage case 65 and the rib 51, and the rear side of the refrigerator 21 It flows to the return airway.

  In the refrigerator configured as described above, since the storage chamber 63 is a low-temperature storage chamber, the temperature is lower than that in the surrounding refrigeration chamber 22 and condensation is likely to occur around the storage chamber 63. In particular, when the storage chamber 63 is a partial chamber that is a low temperature chamber in a minus temperature zone, the temperature difference between the storage chamber 63 and the refrigerating chamber 22 becomes large, so that condensation is likely to occur around the storage chamber 63.

  More specifically, since a top surface duct unit 80 through which cool air before cooling the storage chamber 63 flows is provided on the bottom surface of the top plate 62, a temperature difference occurs between the top surface and the bottom surface of the top plate 62. For this reason, dew condensation tends to occur on the top surface of the top plate 62 that comes into contact with the relatively warm air in the refrigerator compartment 22. In particular, the rear side of the top plate 62 is close to the outlet 87 for the storage room, so that condensation is likely to occur.

  However, in the present embodiment, since the air layer 88 is provided by the convex portion 84 a, the air layer 88 insulates between the top air passage 81 and the top plate 62 in addition to the upper heat insulating member 84. For this reason, the upper surface of the top plate 62 is not condensed. Alternatively, the thickness of the upper heat insulating member 84 can be reduced.

  Furthermore, since the convex portion 84 a is provided only on the rear side, the air layer 88 becomes thicker toward the back side of the refrigerator 21. For this reason, the heat insulation of the back of the top plate 62 which is easy to condense easily with a simple structure can be improved, and dew condensation can be prevented.

  Furthermore, since the convex portion 84a provides a force for pressing the upper heat insulating member 84 downward, the upper heat insulating member 84 and the lower heat insulating member 83 are pressed against the duct cover 82 fixed to the support frame 89 to be in close contact with each other. Can be improved. For this reason, it is possible to prevent the cold air leakage on the rear side of the top surface duct unit 80 where the cold air from the conveying air passage 72 easily leaks, and it is also possible to prevent condensation in the vicinity thereof.

  Further, in the vicinity of the front door 64, the relatively warm air in the refrigerator compartment 22 enters through the gap around the front door 64 and is in contact with the relatively cool air in the storage chamber 63, so that condensation tends to occur. However, in the present embodiment, since the vent hole 94 is provided in the front wall 91 located below the front air outlet 86 of the top duct unit 80, the flow of cold air flowing from the front air outlet 86 to the air hole 94 is provided. Can produce. Thereby, the relatively warm air staying near the inner surface of the front door 64 can be diffused, and condensation can be prevented from occurring near the inner surface of the front door 64.

  Further, by providing the vent hole 94 on the back surface of the handle portion 93, it is possible to prevent a dew condensation by creating a flow of cold air inside the handle portion 93 that is touched by the user's hand. Thereby, even when the user places his / her hand inside the handle portion 93, there is no unpleasant feeling. Further, since the handle portion 93 is attached substantially vertically, the flow of the cold air blown out from the vent hole 94 can be directed downward, and the cold air can be smoothly returned to the return passage. The cooling efficiency is not reduced. Moreover, since the vent hole 94 is not visible even when viewed from the front, the appearance is good.

  In addition, since the bottom surface of the storage case 65 has an uneven shape, the stored items in the storage case 65 are prevented from rolling, and condensation is unlikely to occur on the bottom surface.

  In addition, since the top surface duct unit 80 is provided on the top surface of the storage chamber 63, cold air flows from the transport air passage 72 from the front surface center or the center of the top surface of the storage chamber 63. The temperature distribution in the chamber 63 does not become uneven. In addition, even when a large amount of food is stored in the storage chamber 63 because the cold air circulated in the storage chamber 63 rises the back wall 92 inclined from the bottom surface of the storage case 65 and flows downward, Since the temperature distribution does not become non-uniform, it is possible to achieve both improved storage in the storage chamber 63 and uniform temperature distribution.

  In the present embodiment, the convex portion 84a is described as being provided only on the rear side of the upper heat insulating member 84. However, the air layer 88 may be provided over the entire lower surface of the top plate 62 by providing the convex portion 84a also on the front side. good. In this case, it is possible to easily increase the thickness of the air layer on the rear side from the front side by making the height of the convex portion on the rear side higher than the height of the convex portion on the front side.

  Further, the storage chamber 63 may be a switching chamber in which a partial chamber in a minus temperature zone and a chilled chamber in a plus temperature zone can be switched. In this case, a temperature range suitable for the food to be stored can be selected, and the user-friendliness is improved.

(Embodiment 2)
FIG. 5 is a side view of an essential part of the refrigerator in the second embodiment of the present invention. In the present embodiment, only differences from the first embodiment will be described, and description of similar configurations, operations, and actions will be omitted.

  As shown in FIG. 5, in the embodiment of the present invention, the storage chamber 63 does not include the storage case 65, and the front wall 101 is provided on the upper surface of the heat insulating partition that partitions the refrigerator compartment 22. The vent hole 94 is provided above the center of the front wall 101 in the height direction.

  In the present embodiment, since the vent hole 94 is provided in the front wall 101 located below the front air outlet 86, a flow of cool air flowing from the front air outlet 86 to the air hole 94 can be created. Thereby, the relatively warm air staying in the vicinity of the inner surface of the front door 64 can be diffused to prevent dew condensation from occurring in the vicinity of the inner surface of the front door 64. In addition, the upper end of the front wall 91 is provided with a folded portion that extends horizontally forward from the upper end and hangs so as to cover the upper portion of the front wall 91, and the front wall 101 positioned on the back side of the folded portion Vent holes 94 may be provided. In this case, since the vent hole 94 is not visible even when viewed from the front, the beauty is improved.

(Embodiment 3)
FIG. 6 is a side view of an essential part of the refrigerator in the third embodiment of the present invention. In the present embodiment, only differences from the first embodiment will be described, and description of similar configurations, operations, and actions will be omitted.

  As shown in FIG. 6, in the embodiment of the present invention, the front door 104 has a length that reaches the upper surface of the heat insulating partition that partitions the refrigerator compartment 22, and the front wall 91 is not provided. The vent hole 94 is provided below the center of the front door 104 in the height direction.

  In the present embodiment, since the vent hole 94 is provided in the front door 104 located below the front air outlet 86, a flow of cool air flowing from the front air outlet 86 to the air hole 94 can be created. Thereby, the relatively warm air staying in the vicinity of the inner surface of the front door 104 can be diffused to prevent dew condensation from occurring in the vicinity of the inner surface of the front door 104. In addition, a handle portion that is horizontally extended forward from the lower end of the front door 104 and bent upward, or a handle portion that is horizontally extended forward from the bottom of the front door 104 and bent downward, is provided. The vent hole 94 is provided in the front door 104 located on the back side of the handle part, so that the user does not feel uncomfortable when the user puts his hand inside the handle part. Even if it sees, since the vent hole 94 is not visible, it is desirable from the viewpoint of improving aesthetics.

  As described above, the refrigerator according to the present invention does not cause condensation in the vicinity of the low-temperature storage room even if a low-temperature storage room is provided inside the refrigerator compartment. It can be applied to other refrigerators.

DESCRIPTION OF SYMBOLS 11 Heat insulation box 11a Inner box 12 Compressor 21 Refrigerator 22 Refrigeration room 23 Ice making room 24 Quick freezing room 25 Freezing room 26 Vegetable room 31a 1st door 31b 2nd door 32, 33, 34, 35 Door 36 Door decorative board 37 Operation display means 51 Rib 51a Protruding portion 61 Shelf 62 Top plate 63 Storage chamber 64, 104 Front door 64a Support shaft 65 Storage case 71 Cooling chamber 72 Carrying air channel 73 Rear panel 74 Cooler 75 Cooling fan 76 Radiant heater 77 Drain pan 78 Drain tube 79 Evaporating dish 80 Top surface duct unit 81 Top surface air path 81a Top surface air path inclined portion 82 Duct cover 83 Lower heat insulating member 84 Upper heat insulating member 84a Convex portion 85 Lower air outlet 86 Front air outlet 87 Storage room air outlet 88 Air layer 89 Support frame 91, 101 Front wall 92 Back wall 93 Handle part 4 ventilation holes

Claims (3)

A refrigerating room, a storage room provided inside the refrigerating room and having a temperature lower than that of the refrigerating room, a top surface duct provided on a top surface of the storage room, a door provided on a front surface of the storage room, A front wall provided below the door; and a vent hole provided in the front wall, the top air duct of the top duct comprising an upper heat insulating member and a lower heat insulating member, and the top air passage The blower outlet communicated with the lower heat insulation member includes a lower air outlet provided in the lower heat insulating member and a front air outlet provided between the upper heat insulating member and the lower heat insulating member, and the vent hole is provided below the front air outlet. The top surface duct is a duct cover located inside the storage chamber, the lower heat insulating member provided in contact with the inner surface of the duct cover, and the upper heat insulating member disposed above the lower heat insulating member. A support frame around the top surface. The duct cover is fixed by the support frame so that the top air passage is fixed between the top plate and the duct cover, and an air layer is provided between the upper heat insulating member and the top plate. The air layer is formed so as to increase in thickness toward the back side of the refrigerator by contacting a convex portion provided behind the upper heat insulating member and projecting upward and an inner surface of the top plate. Refrigerator. A refrigerating room, a storage room provided inside the refrigerating room and having a temperature lower than that of the refrigerating room, a top surface duct provided on a top surface of the storage room, a door provided on a front surface of the storage room, A vent hole provided below the center in the height direction of the door, the top air duct of the top duct is composed of an upper heat insulating member and a lower heat insulating member, and the air outlet communicating with the top air path is said lower heat insulating member provided with downward air outlet and said upper heat insulating member consists of the front air outlet provided between the lower insulating member, the vent hole is provided below the front air outlet Rutotomoni, the top surface The duct includes a duct cover located inside the storage chamber, the lower heat insulating member provided in contact with the inner surface of the duct cover, and the upper heat insulating member disposed above the lower heat insulating member. A support frame is provided around the surface. The duct cover is fixed and the top air passage is fixed between the top plate and the duct cover, an air layer is provided between the upper heat insulating member and the top plate, and the air layer Is a refrigerator that is formed so that the thickness increases toward the back side of the refrigerator by abutting a convex portion provided behind the upper heat insulating member and protruding upward and the inner surface of the top plate . The refrigerator according to claim 1, wherein the front wall is a back surface of a handle portion of a container provided in the storage chamber.