JP2730642B2 - refrigerator - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator of a forced air circulation system in which a freezing room, a refrigerating room, and a low-temperature room are sequentially arranged from above.

2. Description of the Related Art As a method of disposing a discharge duct in a low-temperature room, there is an NR-D37V1 type electric refrigerator released by Matsushita Electric Industrial Co., Ltd. in April 1989, but the discharge duct bends downward due to foaming pressure. There are many problems such as hitting when pulling out the upper case.

 Hereinafter, a conventional example will be described with reference to FIGS.

In the figure, reference numeral 1 denotes a refrigerator main body, which is composed of an outer box 2, an inner box 3, and a heat insulating material 4 filled between the two boxes 2, 3. 6 is a freezing room, 6 is a first partition wall, 7 is a first refrigerator compartment, 8 is a second partition wall, 9 is a partition disposed on the front surface of the second partition wall 8, and 10 is a first partition wall. Is a low-temperature room maintained in a temperature zone lower than that of the refrigerator room 7, 11 is a third partition wall, and 12 is a second refrigerator room serving as a vegetable storage room. Reference numeral 13 denotes a cooling air passage provided with a single cooler 13a provided on the back surface of the freezing chamber 5 and a blower 13b for forcibly blowing air cooled by the cooler 13a to the respective chambers 5, 7, 10, and 12. is there. Reference numeral 14 denotes a temperature control damper thermostat 14a for controlling the amount of cool air to the low-temperature chamber 10 inside the control panel, and the cooling air passage 1
There is a first discharge duct 15 communicating with 3. Reference numeral 16 denotes a second discharge duct connected to the first discharge duct 15, and a receiving portion 16a is provided on the front surface. Reference numeral 17 denotes a third discharge duct connected to the second discharge duct 16, and a hole for attaching a connecting member 18 on the front surface.
17a is provided. 9a is a hole provided in the partition 9. 19
Is a case in a low temperature room.

Next, the assembling work of such a configuration will be described step by step. First, the inner box 3 is inserted into the outer box 2, and then the second box is inserted into the inner box 3.
Of the discharge duct 16 is installed. Next, the partition plate 9 is attached, the back of the third discharge duct 17 is placed on the receiving portion 16a provided with the second discharge duct 16, and the hole 17a and the hole 9a provided on the partition portion 9 are aligned on the front surface. Then, the third discharge duct 17 is fixedly mounted. Next, after attaching the second partition wall 8 from above, the outer box 2
The space between the inner boxes 3 is filled with a urethane foam to form the heat insulating material 4.

However, in the above configuration, when the urethane of the refrigerator main body 1 is foamed, the second partition wall 8 is deformed around the center in the vertical direction by the foaming pressure from the left and right, so that the third Since the central portion of the discharge duct 17 is largely bent downward, there is a disadvantage that the low-temperature-room upper case flange hits the third discharge duct 17 when the low-temperature-room upper case 19 is pulled out. Further, since the third discharge duct 17 is inserted from the inside of the low-temperature chamber 10 and is fixed to the partition 9 by the connecting member 18, there are disadvantages that the workability is poor and the cost is high.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a refrigerator having a low-cost mounting structure that prevents contact between a discharge duct of a low-temperature room and an upper case of the low-temperature room, improves workability, and is inexpensive.

Means for Solving the Problems Accordingly, the present invention provides a discharge duct at both top corners of a low-temperature chamber, forms a rail that receives the upper case of the low-temperature chamber integrally from the discharge duct, and partitions the discharge duct into grooves. The locking plate provided in the portion is inserted and fixed.

Operation In the present invention, since the dimensions of the discharge duct and the upper case of the low-temperature chamber are reliably regulated by the above-described configuration, the hit can be prevented without being affected by the foaming pressure. Further, a connecting member is not required.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. The same components as those of the related art are denoted by the same reference numerals,
A detailed description thereof will be omitted, and only different portions will be described. In FIG. 1, reference numeral 20 denotes a receiving portion 20a below a portion which is connected to the first discharge duct 15 and is opened at the upper upper corner of the low-temperature chamber 10 and opened by the second discharge duct. Reference numeral 21 denotes a third discharge duct which is connected to the second discharge duct 20 and is disposed at the upper corner of the low temperature chamber 10 at a position before the back, and has a groove 21a formed on the front surface. 21b is a rail formed integrally with the third discharge duct 21. Reference numeral 22 denotes a partition connected to the front surface of the second partition wall 8, and a locking plate 22a is integrally formed.

The assembling work having the above configuration will be described in order. First, the inner box 3 is inserted into the outer box 2, and then the second discharge duct 20 is attached to the inner box 3. Next, install the partition plate 22,
The inner part of the third discharge duct 21 is placed on the receiving part 20a provided on the second discharge duct 20, and the front face is provided with a locking plate 22a provided on the partition part 22.
Into the groove 21a provided in the third discharge duct 21. Next, after the second partition wall 8 is attached from above, the urethane foam material is filled between the outer case 2 and the inner case 3 to become the heat insulating material 4. Therefore, after the urethane foaming, the low temperature chamber upper case 19 is connected to the third discharge duct. Even if it is inserted into the rail 21b formed integrally with the 21, it does not hit the third discharge duct 21.

Advantageous Effects of the Invention As described above, according to the present invention, the rear is connected to the receiving portion of the second discharge duct at the top corner of the low-temperature chamber, and the front is connected to the locking plate provided at the partition at the front. Since the third discharge duct is integrally provided with a groove for stopping and a rail for receiving the upper case of the low-temperature chamber, there is no problem that the upper case of the low-temperature chamber is hit by deformation and deflection due to urethane foaming pressure. The dimensional relationship with the upper case in the low-temperature room is maintained, and the performance is stable. In addition, excellent effects can be obtained, such as simplification of the assembling work, no connecting member, and low cost.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a refrigerator according to an embodiment of the present invention, FIG. 2 is an enlarged view of the low-temperature chamber in FIG. 1, and FIG. 3 is A in FIG.
FIG. 4 is an exploded perspective view of a main part in one embodiment of the present invention, FIG. 5 is a transverse sectional view of a third discharge duct, FIG.
FIG. 7 is a sectional view of a conventional refrigerator, FIG. 7 is an enlarged view of a low-temperature chamber in FIG. 6, and FIG. 8 is a sectional view taken along line BB of FIG. 5 ... freezer compartment, 6 ... first partition wall, 7 ... first refrigerator compartment, 8 ... second partition wall, 10 ... low temperature room, 11 ... third partition wall, 12 ... ... Second refrigerator compartment, 13 ... Cooling ventilation passage, 13a
... cooler, 15 ... first discharge duct, 19 ... upper case of low temperature chamber, 20 ... second discharge duct, 20a ... receiving part, 21
... Third discharge duct 21a Groove 22 Partition 22a
...... Locking plate, 21b ... Rail.

Claims (1)

(57) [Claims] 1. A freezer compartment, a first refrigerator compartment defined by the freezer compartment and a first partition wall, and the first refrigerator compartment partitioned by the first refrigerator compartment, a second partition wall, and a partition. A low-temperature room maintained in a temperature zone lower than the first refrigerator room, and a low-temperature room and a second refrigerator room partitioned by a third partition wall are sequentially arranged from above, and a deep portion of the freezer room is provided. , A cooling air passage which houses a blower for circulating the air cooled by the cooling device into each of the chambers, and communicates with the cooling air passage;
A first discharge duct mounted on the front of the inner box on the back of the refrigerator compartment, a low-temperature room upper case provided in the low-temperature room, and a first discharge duct mounted on the back of the low-temperature room and having an upper end provided with the first discharge duct. A second discharge duct communicating with the other end and opening at the upper corner of the rear surface of the low temperature chamber, a receiving portion provided at a lower portion of an opening of the second discharge duct, and a rear portion provided at both corners of a top surface of the low temperature room; A third groove integrally connected to a receiving portion of the second discharge duct, a groove for locking a front portion to a locking plate provided on the partition portion, and a rail for receiving the upper case of the low-temperature chamber. A refrigerator consisting of a discharge duct.