JPH0526471Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a refrigerator, and particularly to a shelf device for a multi-temperature refrigerator that is divided into a plurality of rooms according to temperature.

[Conventional technology]

Conventionally, this type of refrigerator is shown in Figures 5 and 6.
The one shown in the figure is known.

In the figure, reference numeral 1 denotes a refrigerator body, and the interior of the refrigerator body 1 is divided into three compartments, a freezer compartment 4, a refrigerator compartment 5, and a vegetable compartment 6, sequentially from above by a heat insulating partition wall 2 and a removable partition wall 3. The front openings of these three compartments are each closed by a door body that can be opened and closed, and 7 is a cooler compartment 7a provided in this refrigerator body 1.
8 is a fan that circulates the air cooled by this cooler 7; 9 is a cold air duct that sends the cool air circulated by this fan 8; A damper thermostat 11 controls the cold air sent to the refrigerator compartment 5 through the cold air duct 9, and a cold air suction vent 11 is a passage through which the cold air controlled by the damper thermostat 10 returns to the cooling compartment 7a after passing through the refrigerator compartment 5 and the vegetable compartment 6. This cold air suction ventilation passage 11 is provided in the heat insulating partition wall 2, and 12 is this cold air suction ventilation passage 1.
The cold air sent from 1 to the cooler compartment 7a and cooled by the cooler 7 passes through the cold air duct 9 and blows out to the vegetable compartment 6 through a back hole. 14 is a shelf of the refrigerator compartment 5 that is cooled by the cold air flowing out from the ventilation duct 13 and the cold air blown out from the cold air duct 9; 15 is a front frame of the shelf 14;
6 is a thin line that constitutes the front frame 15 and the shelf 14;
Reference numeral 17 denotes a cold air passage through which cold air from the cold air duct 9 passes into the refrigerator compartment 5 in which the shelf 14 made up of the thin wire 16, the front frame 15, etc. is disposed, and 18a denotes the cold air passage 17.
The cold air from the cooling duct 9 that sends cold air to the refrigerator compartment 5 is controlled by the damper thermometer 10 and is blown out into the refrigerator compartment 5 through the upper cold air outlet 18b. The air outlet 19 is a decorative cover 20 provided between the lower cold air outlet 18b and the upper cold air outlet 18a.
A cooler 7 is installed in the freezer compartment 4 provided through the partition wall 3 above the refrigerator compartment 5 provided with the decorative cover 19.
21 is a suction grill which is a passage for the cold air blown into the freezer compartment 4 through this blowout grill 20 to be sucked into the cooler chamber 7a; 22 is a suction grill through which the cold air is sucked from the suction grill 21; This is a front suction port provided in the heat insulating partition wall 2, which is a passage through which the remaining cold air in the freezer compartment 4 is sucked.

Next, the operation will be explained. Cold air cooled by a cooler 7 installed in a cooler chamber 7a provided at the back of the freezer compartment 4 is circulated through the freezer compartment 4 through a fan 8 to cool the interior of the freezer compartment 4. Further, a part of the cold air cooled by the cooler is sent to the refrigerator compartment 5 through a cold air duct 9 provided in the insulation material of the refrigerator body 1, and the inside of the refrigerator compartment 5 is sent to the refrigerator compartment 5 via a refrigerator damper thermostat 10. The cooled air is cooled by the controlled cold air, and is circulated back to the cooler room 7a through a cold air suction air passage 11 provided in the heat insulating partition wall 2 that partitions the freezer compartment 4 and the refrigerator compartment 5.

Further, the cold air controlled by the refrigerator compartment damper thermostat 10 is blown into the refrigerator compartment 5 from the front upper cold air outlet 18a and the lower cold air outlet 18b of the decorative cover 19 that covers the damper thermostat 10, and some of the cold air is Air is blown into the vegetable compartment 6 from the back hole 12 of the compartment wall 3 that divides the refrigerator compartment 5 and the vegetable compartment 6, and after cooling the interior of the vegetable compartment 6, the compartment wall 3
The cool air passes through the refrigerator compartment 5 again from the ventilation passage enclosure 3 provided at the front of the refrigerator compartment 5, and returns to the cooler 7a through the aforementioned refrigerator compartment cold air ventilation passage 11 together with the cold air that has cooled the refrigerator compartment 5.

[Problem that the invention attempts to solve]

Conventional refrigerators are configured as described above, and in recent years, as they have become larger and have more doors, temperature control of food has become more important, and the need for this in household refrigerators has also increased. As the capacity increases, the temperature distribution within the storage room worsens, so more precise temperature control is required.

However, because the structure is such that the cold air controlled by the damper thermostat on the back is blown out from the cold air outlets at the top and bottom of the decorative cover that covers the damper thermostat, it is difficult to place a large amount of food on the shelf or how to place it. In some cases, the disadvantage is that the temperature distribution inside the storage room becomes poor, and the rear end of the shelf needs to be bent and a space for a cold air passage needs to be opened at the back, reducing the effective area of the shelf. There was a problem.

[Means for solving problems]

In the refrigerator according to this invention, the shelf itself is also a cooling plate that forms a cold air passage, and while guiding the cold air from the communication duct on the back from the rear to the front, it gradually flows downward from the cold air blow-off hole on the bottom surface over the entire area. It blows out air to equalize the temperature inside the storage room.

[Effect]

A damper thermostat in the refrigerator room performs static control, and a part of the cold air is guided downward through a communication duct in the back insulation material, and the cold air guide section of the rear shelf of each shelf unit is connected to the cold air outlet of the communication duct. The shelves are placed in contact with each other to guide cool air into the interior of the shelf.

〔Example〕

An embodiment of this invention will be described below with reference to the drawings. Reference numerals 1 to 22 indicate the same or equivalent parts as in the conventional example, to avoid duplication of explanation.

In FIGS. 1, 2, and 3, reference numeral 23 indicates a communication duct buried in the heat insulating material extending below the decorative board 19, and this communication duct 23 is connected to the refrigerator compartment 5.
23a is a duct outlet of this communication duct 23, and 24, 25, 26 are This duct outlet 2
3a is a cold air outlet opened at a portion where the communication duct 23 contacts the rear cold air duct 31 of each shelf device 28; 27 is a cold air outlet opened at a portion where the communication duct 23 comes into contact with the compartment 3; 28 is a communication duct 23 with cold air outlets 24, 25, 26
each shelf assembly with a rear cold air guide abutting, 28
29 is the upper shelf of the shelf device 28 where this cold air ventilation path 28a is located; 30 is the rear rising portion of the shelf device 28 where this upper shelf 29 is located;
31 is a rear cold air guide provided in the shelf device 28 where this rear rising portion 30 is provided, 32 is a fitting hole drilled in the upper shelf 29 provided with this rear cold air guide 31, and 33 is a shelf device with this fitting hole 32 opened. The lower shelf 28, this lower shelf 33, and the upper shelf 29 are molded from synthetic resin, and 34 and 35 are cold air blowing holes that are blowing holes provided on the lower surface of this lower shelf 33.
35 is formed from the rear to the front of the lower shelf 33 so that the cross-sectional area becomes larger toward the front, and the upper and lower shelves 2
9 and 33 to form a cold air blowing path 28a, and 36 is a claw provided on the left and right walls of the lower shelf 33 in which the cold air blowing holes 32 and 35 are provided.
is fitted into a fitting hole 32 formed in the upper shelf 29 to assemble the shelf device 28, and a cold air blowing path 28a is formed between the upper shelf 29 and the lower shelf 33.

Next, the effect will be explained.

Cold air cooled by a cooler disposed in a cooler chamber 7a disposed at the back of the freezer compartment 4 is circulated within the freezer compartment 4 by a fan 8, thereby cooling the interior of the freezer compartment 4. In addition, a part of the cold air cooled by the cooler 7 is sent to the refrigerator compartment 5 through a cold air duct 9 buried in the insulation material of the refrigerator body 1, and the amount of cold air is controlled by a damper thermostat 10 to be sent to the damper thermostat. It is blown into the cosmetic cover 19 that covers the tattoo 10. A part of the cold air is blown out from the air outlet 18 which is a cold air outlet provided at the upper front of the decorative cover 19, while the remaining cold air is distributed downward and connected to the decorative cover 19 at the back of the refrigerator compartment 5. It extends to the back wall of the vegetable compartment 6 embedded in the wall insulation material and is sent to the communication duct 23.

At a suitable position of the communication duct 23 where the duct outlet 23a is provided, a cold air blowing passage 28a is further provided inside the communication duct 23, which is disposed at a position facing the cold air outlets 24, 25, 26 of the communication duct 23. The shelf unit 28 is brought into contact with the shelf unit 28 to guide cool air to the shelf part.

The lower surface of the shelf device 28 is provided with a plurality of cold air blow-off holes 34 and 35 formed so that the opening area gradually increases from the rear to the front, so that cold air is blown out uniformly from the entire lower surface of the shelf device 28, and also in the vegetable compartment. 6
Since a cold air outlet 27 is provided at the end of the duct 23, cold air is sent into the vegetable compartment 6.

Further, a rear rising portion 30 is provided at the rear end of the shelf device 28.
Since this is provided, the entire shelf device 28 also functions as a cooling plate due to the flow of cold air, and prevents the food from coming into direct contact with the wall surface of the wall communication duct 23 and being too cooled.

According to one embodiment of this invention, a cold air outlet and a communication duct connected to the lower part thereof and extending downward from the back are arranged at the upper front of the decorative board covering the damper thermostat. A plurality of shelf devices are installed in which the back cold air guide is in contact with the duct outlet, and the cold air is blown out from the plurality of cold air outlets on the bottom surface through the internal hollow air passage, so the cold air from the communication duct is Foods, etc. placed on a shelf device are uniformly guided into the refrigerator without being affected by the arrangement state. As a result, the temperature distribution inside the refrigerator is made uniform, and the entire back wall can be used as a shelf without worrying about the passage of cold air.

In addition, as another embodiment of this invention shown in FIG. 4, the outlet ports 24, 25, and 26 of the cold air communication duct 23 buried in the back surface of the refrigerator compartment 5 are connected to the drawers of the shelf device 28 and the adjustment between the shelves. A spring 38 is attached to a buff-full plate 37 which is pushed open by a rear cold air guide 31 provided protruding from the rear end of the shelf device 28 when the shelf device 28 is completely installed.

Therefore, when the shelf device 28 is pulled out, the baffle plate 37 can close the air outlet of the communication duct 23 due to the force of the spring 38, and when the shelf device 28 is pulled out, the shelf device 28 is set. There is a communication duct 2 in the part of the refrigerator compartment 5 that was
3, the cold air is no longer blown out, which is convenient because the cold air can be used effectively.

[Effect of idea]

As described above, according to this invention, a communicating duct is provided on the back wall of the shelf to guide cold air, a duct outlet is provided in the part facing the shelf, and the interior of the shelf is made into a hollow cold air duct. Furthermore, by providing a plurality of blow-off holes on the lower surface of the shelf, the temperature distribution within the refrigerator compartment is made uniform throughout, and the shelf area can be used up to the back wall. In addition, by providing a full plate at the air outlet of the communication duct that closes this air outlet when the shelf device is pulled out, when the shelf device is pulled out or a part of the shelf device is removed to adjust the height. Furthermore, it is possible to avoid the inconvenience of the cold air being blown directly from the air outlet, and the cold air can be used effectively.

[Brief explanation of the drawing]

Fig. 1 is a front view with the door removed of a refrigerator including a shelf device according to an embodiment of this invention, Fig. 2 is a longitudinal sectional view of the refrigerator including a shelf device according to an embodiment of this invention, and Fig. 3 is the same. FIG. 4 is a vertical sectional view showing a shelf device and its surroundings according to another embodiment of the invention, FIG. 5 is a longitudinal sectional view of a refrigerator including a conventional shelf device, and FIG. 6 is a longitudinal sectional view of the same. It is a perspective view of a shelf device. 1... Refrigerator body, 2... Compartment wall, 3... Partition plate, 4... Freezer compartment, 5... Refrigerator compartment, 6... Vegetable compartment, 10... Damper thermostat, 18... Upper air outlet, 19... Decorative cover, 23... Communication duct, 23a... Duct outlet, 24-26...
Cold air outlet, 28...shelf device, 31...rear cold air guide, 34, 35...bottom air outlet, 37...bumpy plate, 38...spring. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A communication duct is provided with a plurality of outlets that are arranged vertically on the back side of the refrigerator and blows out cold air to a part facing the inside of the refrigerator, and cold air is guided from a back cold air guide that communicates with the outlets through a hollow cold air blowing path. The refrigerator is equipped with a plurality of shelf devices configured to blow out cool air from a plurality of outlet ports on a lower surface of the refrigerator, the refrigerator having a full plate that closes the outlet ports by pulling out the shelf device from the outlet of the communication duct. A refrigerator characterized by being equipped with.