JPH0758151B2 - refrigerator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator capable of storing various foods at appropriate temperatures.

[0002]

2. Description of the Related Art FIG. 1 shows a conventional example shown in Japanese Utility Model Laid-Open No. 55-54874, which includes a freezer compartment 2 and a refrigerating compartment 8,
A dedicated door is provided in each of the vegetable compartments 16. Further, a low temperature case 50 is arranged above the refrigerating chamber 8.
Reference numeral 4 is a cooler that constitutes a cooling system, 6 is a fan for forced circulation of cold air, and 12 is a damper thermostat that controls the temperature in the refrigerating compartment 8. In the refrigerator configured as described above, the cool air cooled by the cooler 4 is fed by the fan 6 to the freezer compartment 2.
The cold air controlled by the damper thermo 12 is circulated in the refrigerating compartment 8, the vegetable compartment 16 and the low temperature case 50 to be cooled to a predetermined temperature.

Therefore, since the temperatures of the refrigerating compartment 8, the vegetable compartment 16 and the low temperature case 50 are determined by the air volume preset by the ducts and the like, the temperature of the refrigerating compartment 8 is controlled independently of each other. Damper Thermo 12
Will be controlled by.

[0004]

Therefore, for storing food, for example, the low temperature case 50, which requires precise temperature control, is also affected by the temperature of the refrigerating compartment 8. If the refrigerating compartment 8 is strongly cooled, the low temperature case 50 will not be stored. If it becomes too cold, on the contrary, if it becomes weak, it becomes too high, and it is difficult to control it to a predetermined temperature range. Further, the temperature of the low temperature case 50 easily fluctuates due to the opening and closing of the door of the refrigerating chamber 8, the temperature of the outside air, and the operating rate of the compressor, and it is difficult to perform precise temperature control. The present invention is intended to eliminate the above drawbacks, and in particular, in order to improve the storability of food in a low temperature room, it has a low temperature room that is a dedicated room independent from the refrigerating room and that controls the temperature precisely. It is designed so that a refrigerator can be provided.

[0005]

A refrigerator according to the present invention is an outlet for diffusing down cool air from a cooler into the low temperature chamber through a duct passing through a partition section which divides the cold storage chamber and the low temperature chamber, A plurality of slits distributed and opened in the ceiling of the low temperature chamber, and a damper for the low temperature chamber by sensing the temperature in the low temperature chamber above the retractable storage case arranged in the low temperature chamber. A damper thermo-sensing part for controlling the mower was attached to a position of the ceiling part different from the plurality of slits distributed and opened in the ceiling part of the low temperature chamber.

A plurality of slits distributed and opened in the ceiling portion of the low temperature chamber were made large in size along the leeward side.

A V-shaped blower guide is integrally formed on the lower partition plate under the middle partition section toward the air outlet, and a plurality of slits are opened on both sides of this guide.

[0008]

The cold room of the refrigerator according to the present invention controls the damper thermostat for the cold room, and has a damper-thermo feeling attached to the position of the ceiling part different from the slits distributed and opened in the ceiling of the cold room. The warm part senses the temperature of the upper part of the storage case inside the cold room, and the cool air controlled by the damper chamber for the cold room diffuses down into the cold room through a plurality of slits opened in the ceiling of the cold room. To be done.

[0009]

EXAMPLES Example 1. Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments. The same reference numerals in the drawings indicate the same or corresponding parts. 2 and 3 are a front view and a sectional view of the refrigerator according to this embodiment. In the figure, 1 is a refrigerator main body, 2 is a freezing room installed in the uppermost stage of the storage room of this main body, and a temperature controller (not shown) is used to maintain frozen food at -18 ° C or below. It is maintained by turning on and off the compressor 43 that constitutes the refrigeration cycle. 3 is this freezer 2
The cooler 4 is housed in a cooling chamber formed in the rear part of the vehicle. Reference numeral 5 denotes a partition wall provided in the front surface of the cooling chamber, and has an outlet slit 5a in the upper part and an inlet slit 5b in the lower part. Reference numeral 6 is a fan for circulating cold air, which is installed in the vicinity of the outlet 5a in the upper part of the cooler 4.

Reference numeral 7 is an inner box forming a storage chamber, and 8 is a refrigerating chamber formed in the lower portion of the freezing chamber 2, which is partitioned by a middle partition wall 9. In addition, a blowing duct 10 is provided in the refrigerator compartment 8.
The cold air controlled by the refrigerating compartment damper thermo 12 is blown from the refrigerating compartment blowing duct 11 to cool the refrigerating compartment 8 to a predetermined temperature. Reference numerals 13 and 14 denote a freezing compartment suction port and a refrigerating compartment suction port, which are opened on the front and back sides of the partition wall 9, respectively, and cool air is returned from these suction ports to the cooling chamber 3 through the respective ducts. .

Reference numeral 15 is a low temperature room defined below the refrigerating room 8, and 16 is a vegetable room provided under the low temperature room.
It is located at the bottom of the storage room. And these rooms are storage cases 1 that can be pulled out freely in conjunction with the front drawer door.
7, 18 are arranged respectively. Reference numeral 19 is a low temperature chamber outlet, and cold air is supplied from the blowout duct 10 to the low temperature chamber duct 2
0, connecting duct 22 through damper thermostat 21 for low temperature room
And is blown out to the low temperature chamber 15 from this outlet.

Reference numeral 23 denotes a middle partition which divides the refrigerating compartment 8 and the low temperature compartment 15 into a front middle partition 24 and a rear middle partition 25.
It is divided into and. As shown in FIG. 4, the rear middle partition portion 25 is composed of an upper partition plate 26 and a lower partition plate 27 made of synthetic resin, and an expandable styrofoam fitted in the upper partition plate 26 and the lower partition plate 27. And the heat insulating member 28.

Reference numeral 29 is a square hole opened in the front wall 26a and both side walls 26b of the upper partition plate 26, and 30 is a claw integrally formed on the peripheral rib 27a of the lower partition plate 27 corresponding to these square holes. The heat insulating member 2 is provided in the partition plate 26 and the lower partition plate 27.
After inserting 8 and assembling, attach this claw to the square hole 29 of the upper partition plate.
And fix it.

Reference numeral 31 denotes a duct portion in which the lower rear portion of the heat insulating member 28 is recessed, and the rear surface is opened corresponding to the low temperature chamber outlet 19, and 32 is opened to the lower partition plate 27 corresponding to this duct portion. The plurality of slits causes the cool air to diffusely flow down to the low temperature chamber 15.

As shown in FIGS. 3 and 4, the front middle partition portion 24 has a part of a heat insulating material 33 mounted therein, a plurality of suction slits 34 arranged in parallel on the upper surface thereof, and a rear lower end edge. A flange 35 on which the rear intermediate partition 25 is placed is extended. Therefore, the rear middle partition 25 is placed on the flange 35 and the convex portions 36 integrally formed on both side walls of the inner box 7, and is detachably mounted.

Next, as shown in FIGS. 5 and 6, 37 is a temperature sensing part of the damper thermostat 21 for a low temperature chamber, and 38 is a temperature sensing part 3 thereof.
An attachment portion for fixing 7 is integrally formed on the lower surface of the lower partition plate 27 in a substantially U shape, and a claw 39 and a rib 40 are provided on this attachment portion. The temperature sensing portion 37 is clamped and fixed between the claw 39 and the rib 40.

Further, as shown in FIG. 2, reference numeral 41 is a partition plate for partitioning the low temperature chamber 15 and the vegetable chamber 16. 42a
Is a vegetable compartment outlet, and 42b is a vegetable compartment inlet, which are provided at the rear and front of the partition plate 41, respectively.
It is opened as an outlet and an inlet of No. 6.

The refrigerator constructed as described above is cooled as follows. That is, the cool air cooled by the cooler 4 is blown out from the air outlet slit 5 a of the freezer compartment 2 by the fan 6 to cool the freezer compartment 2 and then cooled from the suction inlet slit 5 b and the freezer compartment inlet 13 of the freezer compartment 2. Return to room 3. The temperature of the freezer compartment 2 is maintained at a temperature at which frozen food can be stored by controlling the compressor 43 to be turned on and off by a freezer compartment temperature controller (not shown).

Part of the cool air cooled by the cooler 4 passes from the blowout duct 10 through the refrigerating compartment blowing duct 11, cool air is blown out to cool the refrigerating compartment 8, and then the refrigerating compartment suction port. Returning from 14 to the cooling chamber 3. Then, the temperature in the refrigerating compartment 8 is maintained at 3 to 4 ° C. suitable for refrigerated food by the refrigerating compartment damper thermostat 12.

Further, the cold air passing through the low temperature chamber duct 20 branched from the blowout duct 10 is cooled by the damper thermostat 21 for the low temperature chamber.
After being blown out to the low temperature chamber 15 through the connection duct 22 and cooling the low temperature chamber, the low temperature chamber 15 returns to the cooling chamber 3 from the suction slit 34 through the refrigerating chamber 8. Low greenhouse 15
Is a damper thermostat 2 for a low temperature chamber that senses the temperature in the low temperature chamber 15 by the temperature sensing unit 37 attached to the lower surface of the middle partition unit 23, that is, the upper portion of the low temperature chamber 15, and controls the cool air blowing.
Hold at 0-2 ° C by 1.

Furthermore, the vegetable compartment 16 takes in part of the cold air blown into the low temperature compartment 15 from the vegetable compartment outlet 42a, circulates it around the housing case 18, cools it, and then cools it from the vegetable compartment inlet 42b. It returns to the cooling chamber 3 through the chamber 15 and the refrigerating chamber 8. It should be noted that the vegetable compartment 16 has a vegetable compartment outlet 42a and a vegetable compartment inlet 42 such that the temperature of the vegetable compartment 16 is about 5 to 7 ° C.
The size of b is determined.

7 to 13 show another embodiment of the present invention. That is, FIGS. 7 and 8 show the rear middle partition 2
5, the nail 4 is attached to the lower end of the front wall 26a of the upper partition plate 26.
4, projections 45 are respectively provided on the rear portion, and the rear middle partition portion 2
The flange 35 of the front middle partition 24 on which the 5 is placed has an engaging hole 46 to be engaged with the pawl 44, and a locking hole 47 is provided in the back wall of the inner box 7 corresponding to the protrusion 45, and the rear portion The middle partition 25 is detachably fixed,
It is possible to prevent the intermediate partition portion 23 from rising and improve the sealing property between the low temperature chamber 15 and the refrigerating chamber 8, and it is possible to precisely control the temperature in the low temperature chamber 15.

In FIG. 9, a V-shaped blower guide 48 is formed integrally with the lower partition plate 27 corresponding to the duct part 31 of the heat insulating member toward the outlet 19, and a plurality of slits are formed on both sides of this guide. 32 is opened, the cool air flows forward along the guide 48, and the slit 32
Since it is flowed down from the inside, the low temperature chamber can be cooled uniformly.

Further, in FIG. 10, the size of the slit 32 opening to the lower partition plate 27 is opened so as to increase along the leeward side, and since cold air flows down into a low temperature room over a wide area, the room is cooled uniformly. can do.

Furthermore, in FIG. 11, a foaming sealing material 49 is attached around the opening of the duct 31 on the rear surface of the rear intermediate partition 25 corresponding to the low temperature chamber outlet 19, and abuts and connects to the outlet 19. With this configuration, it is possible to eliminate the leakage of cool air from the air outlet and efficiently cool the inside of the low temperature chamber.

In FIG. 12, the rear middle partition 25 and the upper partition plate 26 are
And the lower partition plate 27, and the space formed by both of these partition plates is used as the duct portion 31, and the same effect as described above is achieved.

[0027]

As described above, according to the present invention, a plurality of slits are formed in the ceiling of the low temperature chamber and the damper for the low temperature chamber is provided at the position of the ceiling different from the slits. Since it is configured to have a temperature-sensing section, it is possible to cool the diffused cooling air from a wide range of the ceiling of the low temperature room, and to cool the room uniformly and improve the temperature distribution. The temperature can be precisely controlled, and the temperature of the low temperature room above the storage case can be detected quickly, so that stable food storage can be performed.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a conventional refrigerator.

FIG. 2 is a front view showing a refrigerator according to an embodiment of the present invention with a door removed.

FIG. 3 is a sectional view of FIG.

FIG. 4 is an exploded perspective view of a partition according to the present invention.

5 is an enlarged cross-sectional view of the main part of FIG.

6 is a perspective view of an essential part of FIG.

FIG. 7 is a cross-sectional view showing a mounted state of a partition section of another embodiment.

FIG. 8 is a perspective view of a front partition of another embodiment.

FIG. 9 is a perspective view of a lower partition plate of another embodiment.

FIG. 10 is a perspective view of a lower partition plate of another embodiment.

FIG. 11 is a perspective view of a rear partition of another embodiment.

FIG. 12 is a sectional view of a partition part of another embodiment.

13 is an exploded perspective view of FIG.

[Explanation of symbols]

 2 Freezer 4 Cooler 6 Fan 8 Refrigerator 15 Low Greenhouse 16 Vegetable Room 19 Low Greenhouse Outlet 23 Middle Partition 24 Front Middle Partition 25 Rear Middle Partition 27 Lower Partition Plate 31 Duct 32 Slit 38 Mounting 44 Claw 45 Protrusion 46 Engagement hole 47 Locking hole 48 Wind direction guide 49 Foaming sealant

Claims (3)

[Claims] 1. A body is vertically divided into a freezing compartment, a refrigerating compartment, and a low-temperature compartment, and a vegetable compartment is disposed below the low-temperature compartment, and cold air cooled by a cooler is fanned by the freezing compartment, In a refrigerator in which the cooling chamber and the low temperature chamber are separately branched and circulated, the cooling is performed via a duct that passes through a partition that divides the cooling chamber and the low temperature chamber.
At the outlet that diffuses the cool air from the reactor to the low temperature chamber
There is a plurality of open and distributed in the ceiling of the cold room.
The slits and the multiple openings distributed over the ceiling of the low temperature room
Install it in the above ceiling position that is different from the several slits.
A storage case that can be pulled out freely and is placed in the low temperature chamber.
Detecting the temperature inside the low temperature room above the
A refrigerator comprising : a damper thermo-sensing section for controlling the thermo and a thermo-sensing section . 2. The refrigerator according to claim 1, wherein a plurality of slits distributed and opened in the ceiling portion are made large in size along the leeward side. 3. A lower partition plate of the lower part of the middle partition part is integrally formed with a V-shaped blower guide toward the air outlet, and a plurality of slits are opened on both sides of the guide. The refrigerator according to claim 1.