JP3825620B2 - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide effective constitution by taking into consideration both cold air distribution to an upper face duct and to a rear face duct and arrangement of a cold air circulation blower in case of constituting the cold air circulation blower of a propeller fan or a turbo-fan, in a refrigerator having a cooler disposed on a rear face of a fresh food storage compartment and a cold air circulation blower provided above the same and distributing cold air sent from the cold air circulation blower to the upper face duct formed on an upper face of the fresh food storage compartment and the rear face duct formed on a rear face of the storage compartment. SOLUTION: The cold air circulation blower is constituted of the propeller fan or the turbo-fan and is disposed, corresponding to a branching part of the upper face duct and the rear face duct. The upper face duct constitutes a passage for allowing the cold air sent from the blower to be divided into left and right flows at an inflow part thereof and to widen toward a cold air outlet to the compartment. A straightening part for straightening the biased flow of the cold air from the blower is provided in the passage.

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a refrigerator that circulates cold air cooled by a cooler to a refrigerator compartment by a cold air circulation blower.
[0002]
[Prior art]
As a prior art, the refrigerator is partitioned into a refrigerator compartment, a vegetable compartment, and a freezer compartment from the top, and the refrigerator compartment and the vegetable compartment are cooled by a refrigerator for the refrigerator compartment and a cold air circulation blower for the refrigerator compartment. There is a refrigerator that cools a freezing room by a cold air circulation blower for a room, and there is a type that forms an air curtain that flows from top to bottom in a front opening of a refrigerating room. In this case, the air curtain is formed by providing an air curtain dedicated fan that is operated while the door of the refrigerator compartment is open. Therefore, an independent air curtain passage is formed separately from the cold air passage for cooling the refrigerator compartment, and the air curtain passage does not include a refrigerator for the refrigerator compartment.
[0003]
In the above technique, a special blower for an air curtain and its air duct are required in addition to the cold air circulation blower for the refrigerator compartment, and there is a problem that the structure becomes complicated.
[0004]
Therefore, as an improved technique, a cooler and a cool air circulation blower are disposed above the cooler on the back surface of the refrigerating chamber, and the upper surface duct formed by the cool air sent from the cool air circulation blower on the upper surface of the refrigerating chamber The present applicant has developed a technology of a refrigerator that distributes to a rear duct formed on the rear surface of the refrigerator compartment and supplies it to the refrigerator compartment.
[0005]
[Problems to be solved by the invention]
The present invention includes a cooler on the back surface of the refrigerator compartment and a cool air circulation blower disposed above the cooler, and an upper surface duct formed on the upper face portion of the refrigerator compartment for supplying cool air sent from the cool air circulation fan. In the refrigerator that is distributed to the rear duct formed on the rear surface of the room and is supplied to the refrigerator compartment, the cooling air distribution to the upper duct and the rear duct and the arrangement of the cool air circulation blower are considered to be effective. Is to provide. And when a cold air circulation air blower is made into a propeller fan or a turbo fan structure, the structure aiming at the uniformization of the cold air current which blows off from an upper surface duct is provided.
[0006]
[Means for Solving the Problems]
The amount As a specific means of the present invention, cold air circulating blowers above the cooler and the cooler on the back portion of the refrigeration compartment is disposed, the cool air sent from the previous SL cold air circulating blower, which is limited to the top duct a gate unit supplied as, by the branch portion having a guide portion for guiding the cool air from the gate portion to the left and right rear duct in the refrigerator to supply to the refrigerating chamber is dispensed, the cold air circulating blower propeller It is a fan or turbofan configuration, and the upper surface duct has a flow dividing wall portion at the center so that the cold air coming out of the gate portion is diverted to the left and right passages, and the cold air to the refrigerator compartment A technical means provided with a rectifying unit that rectifies the bias of the cold airflow from the cold air circulation blower was formed in the passage extending toward the outlet.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the refrigerator of the present invention will be described. 1 to 6 show an embodiment of the present invention. FIG. 1 is a front view of the refrigerator, FIG. 2 is a longitudinal side view of the refrigerator, FIG. 3 is a front view of the refrigerator body, and FIG. FIG. 5 is an exploded perspective view of the duct, FIG. 5 is an exploded perspective view of the rear duct member and the blower, and FIG. 6 is an explanatory diagram showing the configuration of the cold air branching portion and the upper duct portion.
[0008]
1 to 6, reference numeral 1 denotes a refrigerator body, which has a heat insulating structure in which a foam heat insulating material 4 is filled between an outer box (outer wall plate) 3 and an inner box (inner wall plate) 2. In the refrigerator main body 1, a refrigerator compartment 5, a vegetable compartment 6, and a freezer compartment 7 are partitioned from above, and a refrigerator compartment 5 and a partition plate (partition wall) 8 are provided at the bottom of the refrigerator compartment 5. The freezing room 7 is divided into an upper freezing room 10, a lower freezing room 11, and an ice making room 20. The front opening of the refrigerator compartment 5 is closed at one side of the refrigerator body 1 by a pivotable door 12 that is pivoted laterally by a hinge device and opened and closed. The front opening of the vegetable compartment 6 is closed by a drawer-type door 14 that is drawn forward together with the vegetable container 13 supported so as to be drawn in the front-rear direction by left and right rails or roller devices provided in the vegetable compartment 6. The front openings of the upper freezer compartment 10 and the lower freezer compartment 11 are drawn forward together with the containers 15 and 16 supported so as to be able to be drawn in the front-rear direction with respect to the left and right rails provided in the freezer compartment, respectively. Are closed by pull-out doors 17 and 18. Reference numeral 19 denotes a shelf provided in the refrigerator compartment 5 in a plurality of stages.
[0009]
An ice making room 20 is formed on the left side of the upper freezing room 10, and an automatic ice making machine is provided in the upper part of the ice making room 20, and an ice storage container is arranged in the lower part. Like the vegetable compartment 6, the ice storage container is supported so that it can be pulled out in the front-rear direction with respect to the left and right rails provided on the left and right walls in the ice making chamber 20, and is a drawer type that opens and closes the front opening of the ice making chamber 20. This is a mechanism that is pulled forward together with the door 21.
[0010]
25 is a refrigerant compressor of the refrigeration system, 26 is a condenser of the refrigerant of the refrigeration system, and 27 is an evaporating dish for evaporating defrost water of a cooler described later by the heat of the condenser 26. 28 and 29 are refrigerant coolers (evaporators) of the refrigeration system, 28 is a cooler for the freezer compartment 7, and 29 is a cooler for the refrigerator compartment 5. 30 is a cold air circulation blower for the freezer compartment 7, and 31 is a cold air circulation blower for the refrigerator compartment 5. The blowers 30 and 31 have a propeller fan or a turbo fan configuration. The cold air cooled by the cooler 28 for the freezer compartment 7 is circulated back to the cooler 28 via the ice making chamber 20, the upper freezer compartment 10 and the lower freezer compartment 11 by the blower 30. The cool air cooled by the cooler 29 for the refrigerating room 5 is circulated back to the cooler 28 through the refrigerating room 5, the specific low temperature room 9, and the vegetable room 6 by the blower 31 by a duct arrangement configuration described later. The specific low temperature chamber 9 is provided with a container 50 supported so that it can be pulled out in the front-rear direction with respect to the left and right rails provided in the specific low temperature chamber 9. 22 is an electric heater for defrosting of the cooler 28, and 23 is an electric heater for defrosting of the cooler 29.
[0011]
The structure of the cold air circulation duct on the refrigerator compartment 5 and vegetable compartment 6 side will be described. As shown in FIG. 2 to FIG. 6, the refrigerator compartment 5 is provided in the upper portion and the freezer compartment 7 is provided in the lower portion, and the refrigerator 29 for the refrigerator compartment and the cold air circulation for the refrigerator compartment are provided for the refrigerator compartment 5 and the freezer compartment 7, respectively. In the refrigerator which cools the refrigerator room 5 and the freezer compartment 7, the vegetable compartment 6 is provided between the refrigerator compartment 5 and the freezer compartment 7 in the refrigerator 31 which provided the air blower 31, the cooler 28 for freezer compartment, and the cold air circulation fan 30 for freezer compartment. The specific low temperature chamber 9 is provided in the lower part of the refrigerating room, the refrigerating room cooler 29 is disposed in the cooler room 51 formed in the upper back of the refrigerating room 5, and the refrigerating room cold air circulation blower 31 is located above the refrigerating room 51. It is arranged in the part.
[0012]
The cold air duct 52 that circulates the cold air cooled by the cold room cooler 29 to the cold room 5 includes a cold air distribution duct 52 </ b> A and a cold air return duct 58. The cold air distribution duct 52 </ b> A that distributes and supplies cold air to each room has an upper surface duct 53 formed on the upper surface portion of the refrigerator compartment 5 and a rear duct 54 formed vertically on the left and right sides of the cooler chamber 51. The upper surface duct 53 has a cold air outlet 55 formed on the front surface portion for forming a cold air curtain that flows from the top to the bottom over the substantially entire width of the front opening of the refrigerator compartment 5. The cold air outlet 55 includes a number of honeycomb-shaped cold air outlets.
[0013]
As shown in FIG. 3, the rear duct 54 extends in the vertical direction at the left and right ends of the rear portion of the refrigerating chamber 5, and cool air from the cold air supply port 56 on the rear surface of the refrigerating chamber 5 onto each shelf 19 of the refrigerating chamber 5. Is extended to the back of the vegetable compartment 6 and has a cold air supply port 59 for the specific low temperature chamber 9 and a cold air supply port 57 for the vegetable compartment 6. The cool air return duct 58 for returning the cool air to the cooler chamber 51 is located between the left and right cool air distribution ducts, that is, the rear ducts 54 and 54, and is disposed below the cooler chamber 51 and extends to the rear surface of the vegetable chamber 6. A cold air return portion 60 of the chamber 6 is provided at the lower end portion.
[0014]
The structure of the cold air duct 52 is shown in FIGS. In the cool air distribution duct 52A that constitutes the back duct 54 and the top duct 53, the back duct member that constitutes the back duct 54 is mainly a front plate 61 formed of a synthetic resin such as polypropylene, and a foamed polystyrene combined on the back side. And the molded heat insulating material 62. And the upper surface duct member which comprises the upper surface duct 53 is mainly comprised by the surface board 63 which shape | molded synthetic resins, such as a polypropylene, and shaping | molding heat insulating materials 64, such as a foaming polystyrene, combined with the back. The front plate 61 forms a back wall of the refrigerator compartment 5, and the front plate 63 forms an upper wall of the refrigerator compartment 5. The molded heat insulating material 62 is molded with the duct portion recessed, and the molded heat insulating material 64 is molded with the duct portion recessed. A duct portion 62A recessed in the molded heat insulating material 62 is covered with a molded heat insulating material cover 62B such as foamed polystyrene, thereby forming a rear duct 54. The front plate 61 and the molded heat insulating material 62 are assembled into the refrigerator body 1 from the front opening. If the cover 62B is not provided, the cover 61B and the molded heat insulating material 62 are combined and assembled into the refrigerator body 1 from the front opening so that the inner box ( Between the inner wall plate 2 and the molded heat insulating material 62, a rear duct 54 extending in the vertical direction is formed on the left and right sides of the rear portion of the refrigerator compartment 5. In addition, in the state where the front plate 63 and the molded heat insulating material 64 are combined, the inner box (inner wall plate) 2 and the molded heat insulating material 64 are incorporated into the recessed duct portion 64A by being incorporated into the refrigerator body 1 from the front opening. A horizontal upper surface duct 53 is formed on the upper surface of the refrigerator compartment 5. By this combination, the front plate 61 and the front plate 63, and the formed heat insulating material 62 and the formed heat insulating material 64 are joined to form the upper face duct 53 and the rear face duct 54 in communication with each other.
[0015]
The rear duct member constituting the rear duct 54 is formed with a cooler chamber 51 in which the cooler 29 is disposed and a portion 31A in which the blower 31 is disposed above the cooler chamber 51. Specifically, a cooler chamber portion 51A in which the cooler 29 is disposed is formed on the back side of the molded heat insulating material 62 covered with the front plate 61, and a portion 31A in which the blower 31 is disposed above the cooler chamber portion 51A. Further, on the left and right sides of the cooler chamber portion 51A, a rear duct portion 64A for supplying cold air to the refrigerator compartment 5, the specific low temperature chamber 9, and the vegetable compartment 6 extends downward. The cooler chamber 51 and the back duct 54 sealed between the inner box (inner wall plate) 2 are formed by incorporating the back duct member in which the molded heat insulating material 62 is covered with the front plate 61 into the refrigerator main body 1 from the front opening. Formed on the back of the refrigerator compartment. As shown in FIG. 4, the molded insulation 62 has a shape in which a front plate 61 swells forward in a portion 70 immediately below the cooler chamber portion 51A. It is an arrangement | positioning part of the dew receiving tray 24 provided below. In addition, the cooler 29 and the blower 31, the electric heater 23 for defrosting, the dew tray 24, and the like are provided in the inner box (inner wall plate) of the refrigerator main body 1 before the front plate 61 and the molded heat insulating material 62 are assembled into the refrigerator main body 1. ) It is fixed in advance to 2 and is in the state of required electrical wiring.
[0016]
The cool air return duct 58 is formed between the front plate 61 and the inner box (inner wall plate) 2 of the refrigerator main body 1 so as to be positioned between the left and right rear ducts 54 and below the cooler chamber 51. The This is because the temperature is substantially higher than the cold air supplied from the rear duct 54 to the refrigerator compartment 5 and the like, and there is no need for heat insulation. The cold air return duct 58 communicates with a cold air return port 65 formed on the back surface of the vegetable compartment 6 by the cold air return portion 60 at the lower end thereof. A communication path 83 is formed in the partition walls of the refrigerator compartment 5 and the vegetable compartment 6 so that the cold air in the refrigerator compartment 5 flows into the vegetable compartment 6.
[0017]
In the present invention, the gate portion 68 to which the cold air sent from the cold air circulating blower 31 for the refrigerating room is supplied as a limited amount to the upper surface duct 53 is provided at the branch portion 66 between the upper surface duct 53 and the rear surface duct 54. In this configuration, a guide portion 67 for guiding cool air from 68 to the left and right rear ducts 54 is provided. Specifically, the molded heat insulating material 62 which is one of the rear duct members constituting the rear duct 54 is provided with a molded heat insulating material 90 such as foamed polystyrene having a cold air branching portion 66 formed at the joint portion with the upper surface duct 53. Partly included. The cold air branching portion 66 includes a gate portion 68 that supplies cold air to the upper surface duct 53 at a front position in the center of the blower 31, and streamlined guide walls 67 formed on the left and right sides of the gate portion 68. In addition, the cold air branching portion 66 has a shape in which a bottom surface 94 hangs in a streamline from the gate portion 68 toward the rear duct 54. As a result, as shown by the arrows in FIG. 6, the cool air supplied from the blower 31 flows from the gate portion 68 to the front upper duct 53 and the portion guided by the guide wall 67 to the left and right rear ducts 54. And is divided. The exit side of the gate portion 68 has a region 69 that is widened for matching with the upper surface duct 53. The upper surface duct 53 is formed with a molded heat insulating material 64 in a shape having a flow dividing wall portion 74 at the center so that the cold air coming out of the gate portion 68 is divided into the left and right passages.
[0018]
As a result, the cold air coming out of the gate portion 68 passes through the left and right cold air passages 64A of the diverting wall portion 74 from the widened region 69 and rises from the cold air outlet 55 to the front opening of the refrigerator compartment 5 as a substantially uniform cold air curtain. Flows down from. The cold air flowing into the rear duct 54 from the guide wall 67 is distributed and supplied from the respective cold air supply ports to the refrigerating room 5, the specific low temperature room 9, and the vegetable room 6 while flowing downward through the rear duct 54, to each room. A sufficient amount of cold air is ensured. Reference numeral 72 denotes a manual damper device that adjusts the amount of cold air supplied from the cold air supply port 59 to the specific low temperature chamber 9. 73 is a cold air return port for returning the cold air of the specific low temperature chamber 9 to the cold air return duct 58.
[0019]
In the above configuration, the cold air cooled by the cooler 29 is divided into the upper duct 53 and the rear duct 54 by the blower 31 as shown by arrows in FIG. It flows from the top to the bottom through the front opening of the refrigerator compartment 5. The cold air flowing into the rear duct 54 is discharged from the cold air supply port 56 to the refrigerating chamber 5 while flowing downward through the rear duct 54, discharged from the cold air supply port 59 to the specific low temperature chamber 9, and from the cold air supply port 57 to the vegetable room 6. Supplied to cool each of these chambers. The cold air in the refrigerator compartment 5 is supplied from the communication passage 83 to the vegetable compartment 6. The cold air in the specific low temperature chamber 9 returns from the cold air return port 73 to the cold air return duct 58, the cold air in the vegetable room 6 returns from the cold air return port 65 to the cold air return duct 58, is cooled again by the cooler 29, and repeats the above circulation.
[0020]
On the other hand, the cool air cooled by the cooler 28 is circulated by the blower 30 to the ice making room 20, the upper freezing room 10, and the lower freezing room 11 to cool these rooms.
[0021]
By controlling in such a freezing / refrigeration operation mode, the temperature range of the freezer compartment 7 is controlled to, for example, a range of −18 ° C. to −20 ° C., and the refrigerator compartment 5 has, for example, an average temperature of about 3 ° C. The lower limit temperature is controlled to 1.8 ° C to the upper limit temperature of 4.2 ° C, and the vegetable compartment 4 is controlled to about 3 to 5 ° C.
[0022]
In this case, depending on the type of refrigerator, the specific cold room 9 is a chilled room of about 1 ° C., an ice greenhouse of about −1 to −2 ° C. that is lower than 0 ° C. and higher than the freezing temperature of food, In addition, it may be a partial chamber at about -4 ° C. to the extent that a thin ice layer is formed on the surface of stored food. Since the specific low temperature chamber 9 has such a severe temperature control range, it is necessary to set the amount of cool air flowing through the rear duct 54 fairly strictly.
[0023]
In the present invention, as described above, the gate portion 68 to which the cold air sent from the cold air circulation blower 31 for the refrigerator compartment is supplied as a limited amount to the upper surface duct 53 at the branch portion between the upper surface duct 53 and the rear surface duct 54. The guide portion 67 for guiding the cold air from the gate portion 68 toward the left and right rear ducts 54 is provided. For this reason, the amount of cold air sent from the blower 31 is adjusted according to the size of the gate portion 68, so that the amount of the supply air on the front side of the refrigerator compartment and the amount of the cold air on the rear side are adjusted. It becomes easy to balance the amount of supplied cold air.
[0024]
For this reason, uniform cooling of the refrigerator compartment can be achieved. When the specification of the specific low temperature chamber 9 is, for example, the above-mentioned ice greenhouse, the width of the gate portion 68 is determined so that the ice greenhouse can be maintained at a predetermined temperature, and the branching amount to the upper duct 53 and the rear duct 54 is set. The formed heat insulating material 90 is manufactured. Further, when the specific low temperature chamber 9 is the above-mentioned partial chamber specification, the width of the gate portion 68 is determined so that the partial chamber can be maintained at a predetermined temperature, and the branching amount to the upper duct 53 and the rear duct 54 is set. A molded heat insulating material 90 is manufactured. Thus, it can respond to various refrigerators by the change of the gate part 68. FIG. In said structure, there exists an effect which can perform this by the change of the shaping | molding heat insulating material 90. FIG. 92 is a sealing material between the molded heat insulating material 90 and the upper surface of the inner box 2 of the refrigerator compartment 5.
[0025]
In the present invention, a cooler 29 and a cool air circulation blower 31 are disposed above the cooler 29 on the back surface of the refrigerating chamber 5, and the cool air sent from the cool air circulation blower 31 is formed on the upper surface of the refrigerating chamber 5. In the refrigerator that distributes to the duct 53 and the back duct 54 formed on the back of the refrigerating room 5 and supplies the refrigerating room 5 to the refrigerating room 5, the cool air circulation blower 31 has a propeller fan or a turbo fan configuration, and a branched portion of both the ducts 53 and 54. The upper face duct 53 is arranged corresponding to 66, and after the cold air sent from the cold air circulation blower 31 is diverted to the left and right passages 64 A on the entrance side, the upper surface duct 53 has a passage 64 A that spreads toward the cold air outlet 55 to the refrigerator compartment 5. This is a technical configuration in which the passage 64A is provided with a rectifying unit 76 that rectifies the deviation of the cold airflow from the cold air circulation blower 31.
[0026]
This will be described more specifically. The upper surface duct 53 is provided with a flow dividing wall 74 corresponding to the gate portion 68 so that the cold air supplied from the gate portion 68 is divided almost equally into the left and right passages 64A. The passage 64 </ b> A corresponding to the duct 53 has a substantially uniform depth from the entrance side to the exit side, the width is narrow on the entrance side near the gate portion 68, and the width corresponds to the cold air outlet 55 on the cold air outlet 55 side. Constitutes a wide streamline. Moreover, since the cool air circulation blower 31 has a propeller fan or turbo fan configuration, the amount of cool air blown out varies depending on the rotation direction. For this reason, cold air enters the passage 64A in a biased state, but a rectifying unit 76 is provided in the passage 64A in order to obtain a corrected state when reaching the cold air outlet 55. The rectifying unit 76 is formed by a rib rising from the bottom of the passage 64A, and the cold airflow flowing through the left and right passages 64A after passing through the rectifying unit 76 is rectified to cover the entire cold air outlet 55 having a substantially uniform hole. It acts so that a substantially uniform cold air blowout is formed. In this embodiment, the cold air circulation blower 31 rotates clockwise as viewed from the front of the refrigerator body 1, so that a rightward wind is generated at the upper part of the cold air circulation blower 31. Since the upper surface duct 53 is in a position where the rightward-facing wind flows, the air volume of the right side passage 64A in FIG. 6 is larger than that of the left side passage 64A in FIG. In particular, in FIG. 6, the air volume near the right side wall of the right passage 64A increases. If this is blown out from the cold air outlet 55 as it is, a biased cold air flow is generated in the front portion of the refrigerating chamber 5 to cause uneven cooling. Therefore, the ribs forming the rectifying unit 76 rectify the air flow deviation so that a substantially uniform cold air blowing is formed over the entire cold air blowing port 55.
[0027]
In the present invention, as described above, the cool air supplied from the gate unit 68 by the cool air circulation blower 31 having a propeller fan or turbo fan configuration is rectified while reaching the cool air outlet 55 and is substantially omitted from the cold air outlet 55. Uniform cold air is blown out. For this reason, since the hole of the cold air outlet 55 can be formed in a uniform size, it is easy to manufacture and is preferable in terms of design. Moreover, it becomes a structure suitable when the said air blower is arrange | positioned corresponding to the branch part of an upper surface duct and a back surface duct, and the duct structure is simplified.
[0028]
The present invention is not limited to the above-described embodiments, and various modifications can be considered without departing from the technical scope of the present invention, and the various embodiments related thereto are included.
[0029]
【The invention's effect】
According to the present invention, the air blower is arranged at a branch portion between the upper surface duct and the rear surface duct, and the structure is suitable for simplifying the duct structure. A substantially uniform cold air blow can be achieved from the blow outlet.
[Brief description of the drawings]
FIG. 1 is a front view of a refrigerator according to an embodiment of the present invention.
FIG. 2 is a longitudinal side view of a refrigerator according to an embodiment of the present invention.
FIG. 3 is a front view of the refrigerator main body according to the embodiment of the present invention.
FIG. 4 is an exploded perspective view of a cold air distribution duct of the refrigerator according to the embodiment of the present invention.
FIG. 5 is an exploded perspective view of a rear duct member and a blower of the refrigerator according to the embodiment of the present invention.
FIG. 6 is an explanatory diagram showing configurations of a cold air branching portion and an upper surface duct portion of the refrigerator according to the embodiment of the present invention.
[Explanation of symbols]
1 ... Refrigerator body 2 ... Inner box 3 ... Outer box 4 ... Insulation 5 ... Refrigerator room 6 ... Vegetable room 7 ... Freezer room 8 ... Division wall 9 ... Specific cold room 10 ... Upper freezer Room 11 ... Lower freezer room 12 ... Refrigerated room door 13 ... Vegetable container 14 ... Vegetable room door 15 ... Freezer room container 16 ... Freezer room container 17 ... Upper freezer room door 18 ... Lower freezer room door 22, 23 ... Electric for defrosting Heater 28 ... Freezer cooler 29 ... Refrigerator cooler 30 ... Freezer circulating air blower 31 ... Refrigerated cool air circulating fan 51 ... Cooler chamber 52 ... Cool air duct 52A ... Cool air distribution duct 53 ... Upper duct 54 ... Back duct 55 ... Cool air outlet 56 ... Cool air supply port 57 ... Cool air supply port 58 ... Cool air return duct 59 ... Cool air supply port 60 ... Cool air return part 61, 63 ... Front plate 62, 64 ... Molding insulation 64A ... Course 66 ... Cold air branch part 67 ... Guide part 8 ... the gate portion 74 ... shunt wall 76 ... rectifying section

Claims (1)

A cooler and a cool air circulation blower are disposed above the cooler on the back of the refrigerator compartment,
Cold air is fed from the previous SL cold air circulating blower, a gate portion is supplied as an amount restricted to top duct, by the branch portion having a guide portion for guiding the cool air from the gate portion to the left and right rear ducts, distributor In the refrigerator supplied to the refrigerator compartment ,
The cold air circulation blower has a propeller fan or turbo fan configuration ,
The upper surface duct has a flow dividing wall portion at the center so that the cold air coming out of the gate portion is diverted to the left and right passages, and forms a passage extending toward the cold air outlet to the refrigerator compartment The refrigerator is provided with a rectification unit that rectifies the deviation of the cold airflow from the cold air circulation blower in the passage.

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