JP3397876B2 - refrigerator - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a freezer compartment, a refrigerator compartment, an ice compartment, a vegetable compartment, etc., each of which is controlled at an appropriate temperature. The present invention relates to a refrigerator that has a large refrigerator compartment and is easy to use and that can prevent frost from forming on a baffle surface in a damper that controls opening and closing of cool air cooled by a cooler. 2. Description of the Related Art Conventionally, a freezing room maintained at about -18.degree. C., a refrigerator room maintained at about 0 to 10.degree. C., an ice greenhouse maintained at about -5 to 0.degree. Refrigerators having a vegetable room or the like kept at a temperature of ° C. are known, and techniques for controlling each room to an appropriate temperature have been proposed (Japanese Utility Model Application Laid-Open No. 62-55067, Japanese Utility Model Application Laid-Open No. 5-780, etc.). ). However, conventional refrigerators are provided with a damper that divides cold air cooled by a cooler into a refrigerator compartment, an ice compartment, a vegetable compartment, etc., and vertically arranges the dampers in the refrigerator compartment. There was a problem that became difficult to use. In order to increase the depth dimension in the upper part of the refrigerator compartment, it was considered to arrange a damper horizontally in the deep part of the refrigerator compartment ceiling. In this case, there is a portion where cool air accumulates below the baffle for the refrigerator compartment. When the forced cold air circulation to the refrigerating compartment is stopped, the air in the refrigerating compartment containing a lot of moisture rises in a portion where the cool retentive air is accumulated, and comes into contact with the cool retentive air, causing a problem that frost is easily formed on the baffle. Therefore, in order to solve the problem of frost formation, a heater is provided in the damper to perform defrosting. However, it becomes complicated, the power consumption increases, the refrigerator compartment becomes narrower, and the temperature control in the refrigerator becomes difficult. There are problems such as becoming difficult and increasing the cost, and there has been a demand for a refrigerator that can easily prevent frost on the baffle surface without using a heater for defrosting. [0003] The present invention provides a refrigerator having a freezer compartment, a refrigerator compartment, an ice compartment, a vegetable compartment, etc., which has a large refrigerator compartment and is easy to use. It is an object of the present invention to provide a refrigerator that can easily prevent frost on a baffle surface in a damper that controls opened and closed cold air. [0004] As a result of repeated studies to solve the above-mentioned problems, the present inventors have found that by disposing the damper horizontally at a specific position in the refrigerator compartment, it is possible to reduce the temperature of the refrigerator compartment. It has been found that frost formation on the baffle surface can be easily prevented without using a defrost heater by providing a cool air reservoir in a cool air passage in the damper, The present invention has been completed. According to the present invention, there are provided a refrigerator and a refrigerator which are separated by an adiabatic partition, wherein at least a cold room and / or a vegetable room are partitioned at a lower portion of the refrigerator, and a plurality of cool air cooled by a cooler can be opened and closed. In a refrigerator which is divided through a damper having a baffle and sent to a refrigerator room and an ice greenhouse and / or a vegetable room to control the respective temperatures, the damper is
The refrigerator is installed horizontally behind the ceiling of the refrigerator compartment. Further, the present invention relates to a method for cooling
Air to the refrigerator compartment and the ice compartment and / or the vegetable compartment.
A cold air reservoir is provided in the passage inside the damper, and the baffle
Characterized in that it is located at Further, the present invention relates to the baffle and the cold air
The cold air that has passed through the reservoir is split into two parts, one at the top of the refrigerator compartment.
Outlet and the other through a duct leading to the rest of the refrigerator compartment.
A damper passage is provided in the damper. According to the present invention, cold air cooled by a cooler is divided through a damper having a plurality of baffles that can be opened and closed and sent to a refrigerator compartment, an ice compartment, and a vegetable compartment to control the respective temperatures. In such a refrigerator, the damper is disposed horizontally at the back of the ceiling of the refrigerator compartment below the heat insulating partition separating the freezer compartment and the refrigerator compartment, so that the refrigerator compartment becomes large and easy to use. Since the baffle inside the damper is cooled by the cool air cooled by the cooler, when the baffle in the passage leading to the refrigerator compartment is closed, the baffle comes into contact with the humid air in the refrigerator compartment, Frosting occurs on the baffle surface. Similarly, when the baffle leading to the ice greenhouse is closed, the baffle comes into contact with the air containing moisture in the ice greenhouse, and frost is formed on the baffle surface. In the present invention,
It is important that a partition such as a cold air trap is provided in a cold air passage in the damper to create a cold air reservoir so that the baffle is located therein. As a result, the baffle does not substantially come into contact with humid air such as a refrigerator compartment or an ice compartment, and frost formation can be prevented. The capacity and shape of the cold air trap, the size and shape of the cold air trap, the installation position, and the like are not particularly limited, and can be appropriately determined. In the present invention, the same number of cold reservoirs may be provided corresponding to a plurality of baffles in the damper,
There may be less cold reservoirs than the number of baffles. For example, one cold air reservoir may be provided corresponding to the baffle that comes into contact with the humid air in the refrigerator compartment. [0010] The flow of the cold air to the refrigerator compartment through the cold reservoir and beyond the cold trap is further divided into two, one of which is discharged to the upper portion of the refrigerator compartment, and the other flows through a multi-duct to the refrigerator compartment. By making it flow to the middle and lower part of
The temperature of the refrigerating compartment can be evenly and uniformly controlled, and even if many items are put in the refrigerating compartment, the temperature of the refrigerating compartment can be quickly and uniformly reduced to a predetermined temperature of the refrigerating compartment. EXAMPLES The contents of the present invention will be described more specifically with reference to examples, but the present invention is not limited to these contents. FIG. 1 is an explanatory view showing a cross section of the refrigerator of the present invention. 1 is a refrigerator, 2 is a freezing room, 3 is a refrigerator room, 4 is an ice room, 5 is a vegetable room, 2a, 3a, 4a, 5a
Is an opening / closing door of each room, 6 is a heat insulating box, 6a is a heat insulating partition, 7 is a damper, 8 is a motor, 9 is a baffle (shows an open state), 10 is a compressor, 12 is a multi-duct, and 14 is a partition. , F1 is a cooler and F2 is a blower. In this case, 4
The ice greenhouse and the vegetable room have drawer structures. Arrows indicate the flow of cold air. The freezer compartment 2 and the refrigerator compartment 3 are separated by a heat insulating partition 6a.
Is partitioned. The cool air forced by the cooler F1 and the blower F2 is divided through a damper 7 having a plurality of baffles 9 which can be opened and closed, and a part thereof is
And is sent to the lower middle section of the refrigerator compartment 3 through the multi-duct 12 and the others are sent to the ice compartment 4 and the vegetable compartment 5 to control the temperature of each compartment. The damper 7, which has been disposed vertically in the upper part of the refrigerator compartment 3 in the vertical direction, is disposed horizontally below the heat insulation partition 6a that separates the freezer compartment 2 and the refrigerator compartment 3 from the ceiling of the refrigerator compartment. Can be wider. FIG. 2 is an explanatory view of the damper 7. 7a is a damper upper cover, 7b is a motor damper, 7c is a damper lower cover, 8 is a motor for opening and closing the baffle 9, and 11 is a cold air trap. Arrows indicate the flow of cool air forced by the cooler F1 and the blower F2 formed behind the freezer compartment 2. Cold air flow F damper 7
, The flow R of the cool air to the refrigerator compartment 3 and the flow H of the cool air to the ice warm room 4 are obtained. After the cool air passes through the baffle 9 (showing an open state), the flow R of the cool air to the refrigerator compartment 3 passes through the cool air reservoir 13, passes through the cool air trap 11, and is divided into two parts, one of which passes through the cool air passage 17. Refrigerator room 3
Flows to the upper portion of the refrigerator compartment 3 and the other flows to the middle and lower portions of the refrigerator compartment 3 through the multi duct 12. FIG. 3 is a plan view of the damper 7. FIG. 4 is a sectional view taken along line AA of the damper 7, and FIG. 5 is a sectional view taken along line BB of the damper 7. Arrows indicate the flow of cold air. When the baffle 9 is opened (the baffle 9 shown in FIG. 5 shows an opened state), the flow of the cool air from the freezer compartment 2 enters the cool air reservoir 13 through the baffle 9. Baffle 9 is cold pool 13
It is provided to be located inside. By providing the cold air trap 11 so as to block the cold air passage 15, the cold air pool 13 is provided.
Is made. After passing the cold air trap 11, the cold air is divided into two, one of which flows through the cold air passage 17 to the upper part of the refrigerator compartment 3, and the other passes through the cold air passage 16, passes through the multi duct 12, and passes through the multi duct 12. Is the flow R to the middle and lower part. When the baffle 9 is closed and the forced cool air flow stops, the humid air rising from the refrigerator compartment 3 through the cool air passages 16 and 17 is blocked by the cool air trap 11 and hardly enters the cool air pool 13. Since the humid air does not substantially come into contact with the baffle 9, frost formation on the baffle 9 does not occur or hardly occurs, and a heater for preventing frost formation and its control device are not required. The present invention relates to a refrigerator having a freezing room, a refrigerator room, an ice room, a vegetable room, etc., each of which is controlled at an appropriate temperature. The cool air cooled by the cooler is divided into each room. By arranging the damper to be sent horizontally at the back of the refrigerator compartment, the refrigerator compartment can be made wider and easier to use.In addition, by providing a cool air reservoir in the cold air passage inside the damper, a heater is laid on the damper Therefore, frost formation on the baffle surface can be easily prevented, and the refrigeration room can be uniformly cooled evenly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view showing a cross section of a refrigerator of the present invention. FIG. 2 is an explanatory diagram of a damper. FIG. 3 is a plan view of a damper. FIG. 4 is a sectional view of the damper taken along line AA. FIG. 5 is a sectional view taken along line BB of the damper. [Description of Signs] 1 Refrigerator 2 Freezer room 3 Refrigerator room 4 Ice room 5 Vegetable room 2a, 3a, 4a Door F1 Cooler F2 Blower 6 Insulated box 6a Insulated partition 7 Damper 7a Damper upper cover 7b Motor damper 7c Lower damper Cover 8 Motor 9 Baffle 10 Compressor 11 Cold air trap 12 Multi duct 13 Cold air reservoir 14 Partitions 15, 16, 17 Cold air passage F Flow of cold air cooled by the cooler R Flow of cold air to the refrigerator compartment H Cold air to the ice warm room Flow R Cold air flow to the lower middle of the refrigerator compartment R Cool air flow to the upper refrigerator compartment

Continuation of the front page (72) Inventor Hiroshi Kakinuma 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Hiroyuki Sai 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Inside Electric Co., Ltd. (72) Inventor Hidefumi Mogi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. Yoshitaka Ishizaki 2-72 Keihanhondori, Moriguchi-shi, Osaka (56) References JP-A-61-168769 (JP, A) JP-A-61-83857 (JP, A) JP-A-64-35385 (JP, U) (58) Fields investigated ( Int.Cl. ⁷ , DB name) F25D 17/08 312 F25D 17/08 308 F25D 21/04

Claims (1)

(1) A freezing compartment (2) and a refrigerating compartment (3) are partitioned by an adiabatic partition (6a), and at least a cold compartment (4) and a cold compartment (4) are provided below the refrigerating compartment (3). And / or a vegetable compartment (5) is partitioned, and the cold air cooled by the cooler (F1) is divided through a damper (7) having a plurality of baffles (9) that can be opened and closed, and the refrigerator compartment (3) and ice are separated. In a refrigerator, which is sent to a greenhouse (4) and / or a vegetable room (5) to control the respective temperatures, the damper (7) is horizontally arranged at the back of the refrigerator (3) ceiling.
The cold air that has passed through the baffle (9) is connected to the refrigerator compartment (3).
Said drum to be sent to the ice greenhouse (4) and / or the vegetable room (5)
A cold air reservoir (13) is provided in a passage inside the damper, and the baffle (9) is located in the cold air reservoir (13).
So that the baffle (9) and the cold air
The cold air that has passed through the reservoir (13) is divided into two parts,
A passage (17) extending to the upper part of the storage room (3) and the other
The passage leading to the duct (12) leading out to the other part of the storage room (3)
A refrigerator provided with a road (16) .