JPS6025716B2 - refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a refrigerator body with a front closure, which is made of an inner box, an outer box, and a space between the two boxes filled with foamed insulation material, and a refrigerator body formed inside the main body that allows the interior of the refrigerator to be opened vertically. A heat insulating partition wall installed inside the main body to divide the room into rooms, a blower that circulates cold air cooled by a cooler disposed on the partition wall to the upper and lower rooms through a cold air passage, and a cooling device for the cooler. In a refrigerator provided with a drainage channel for draining frost water outside the refrigerator, a support structure with good sealing performance at the rear of the partition wall is achieved, and a drainage pipe forming the drainage rack is formed by the forming member of the partition wall. To provide a refrigerator having a good structure in which the drain pipe is formed integrally with the main body to reduce the number of parts, and the drain pipe is buried in the heat insulating material of the main body to prevent freezing due to the circulating cold air inside the refrigerator. be.

First, a refrigerator with a subordinate structure will be explained based on FIGS. 1 and 2. Reference numeral 1 denotes a refrigerator body formed by filling a space between an inner box 2 and an outer box 3 with a foamable heat insulating material 4 by foaming on site, and forms an interior with an entrance at the front.

Reference numeral 5 denotes an insulating partition wall body that partitions the inside of the refrigerator into upper and lower chambers, and is composed of an upper partition wall 6 and a lower partition wall 7 that substantially insulationally partitions the inside of the refrigerator into upper and lower chambers. is inserted and supported from the front of the main body 1 into support rails formed on the left and right side walls of the inner box 2,
A soft sealing material 8 is interposed at the joint between the partition wall 5 and the inner box 2 to prevent cold air from flowing between the upper chamber 9 and the lower chamber 10.

The upper partition wall 6 includes a synthetic resin bottom plate 11 forming the bottom wall of the upper chamber 9 and a heat insulating material 12 such as styrofoam provided on the bottom surface of the bottom plate 11.
A cold air suction port 13 for the upper chamber 9 is formed in the bottom plate 11. The lower partition wall 7 is a container-shaped synthetic resin wall member 1 having a peripheral wall and a bottom wall so as to form the upper wall of the lower chamber 10.
4 and a heat insulating material 15 such as styrene foam housed therein, forming a cold air intake port 16 of the lower chamber 10.
Reference numeral 18 denotes a cooler chamber for accommodating the cooler 17 formed in the lower partition wall 7 and covered by the upper partition wall 6.

19 is a front slope of the partition wall 5.

The defrosting water from the cooler 17 in the cooler room 18 is passed through the first drain hole 21 which is passed through the heat insulating material 15 and is formed in the wall section 14.
A third drain pipe 23 is passed through the second drain pipe 22 iron-coupled to the flanges of the drain pipe 20 and the drain port 21, and the second drain pipe 22 is attached to the back of the outer box 3 and passes through the inner box 2. The water is discharged to the outside of the refrigerator and guided to the evaporation tray 26 in the lower machine room 25 of the main body 1 through a drain hose 24 that extends through the third drain pipe 23 . Reference numeral 27 denotes an electric blower that circulates cold air from the cooler chamber 18 through cold air passages 28 and 29 to the upper and lower chambers 9 and 10'.

30 is a damper type thermostat that adjusts the amount of cold air discharged from the cold air passage 29 to the lower chamber 10 according to the temperature of the lower chamber 10.

The operation of the electric compressor 31, which is included in the refrigeration cycle together with the blower 27 and the cooler 17, is substantially controlled according to the temperature of the circulating cold air in the upper chamber 9. With this configuration, the upper chamber 9
is a freezer compartment, and the lower compartment 10 has a temperature range suitable for a refrigerator. Reference numeral 32 denotes a cover that covers the second drain pipe 22 passing through the lower chamber 10 so that the second drain pipe 22 does not freeze due to the circulation of cold air discharged from the cold air passage 29.

33 is a seal plate between the inner box 2 and the third drain pipe 23.

34 is a front door of the upper chamber 9, and 35 is a front door of the lower chamber 10.

As for the secondary type, the defrosting water in the cooler chamber 18 is guided outside through the first drain pipe 20, the drain port 21, the second drain pipe 22, and the third drain pipe 23 as described above, so that it is not drained. It is necessary to combine a large number of members to form a channel, the number of parts is large, and sealing work at the joints of drain pipes is also troublesome. Therefore, a measure is taken to prevent the drain channel from freezing by providing a cover 32. This also increases the unit price due to the increase in the number of parts.

In addition, since the rear surface of the partition wall 5 is in contact with the front surface of the back wall of the inner box 2, cold air from the upper lining chamber 9 and the cooling chamber 18 flows into the lower refrigerator compartment 10, causing overcooling of the refrigerator compartment. Also, the sealing work becomes complicated, such as interposing the sealing material 8 to prevent the second drain pipe 22 from freezing. In view of these points, the present invention provides a refrigerator for the above-mentioned purpose, and embodiments of the present invention will be described below with reference to FIGS. 3 and 4.

In this case, the same reference numerals as in FIGS. 1 and 2 indicate the same names. The present invention differs from the conventional structure in particular in the shape of the rear part of the crosscut wall 5, the shape of the back of the main body 1 combined therewith, and the structure of the drainage channel, and these structures are distinctive. In the present invention, the heat insulating material 15 housed in the wall member 14 in the container of the lower partition wall 7 is made of a flexible material such as styrofoam, and the heat insulating material 15 has a lateral length that substantially spans the width of the lower partition wall 7. The rear surface of the wall member 14 projects slightly rearwardly above the wall member 14.

A lateral groove 43 is formed in the back wall of the inner box 2 to accommodate and support the rear part of the lower partition wall 7 across its width. In a part of the horizontal groove 43, the inner box 2 is further recessed rearward to form a recess 36,
The lower partition wall 7 forms a protrusion 37 in which the wall portion 14 and a portion of the heat insulating material 15 protrude rearward. Reference numeral 38 denotes a first drainage pipe that extends diagonally downward integrally with the wall section 14 in the protrusion 37, and passes through a hole 39 formed in the inner box 2 corresponding to the lower corner of the recess 36 to drain the outer box. The distal end portion is inserted into an insertion portion 40 formed on the back wall of the holder 3.

The insertion part 40 is formed by a drainage connecting pipe 41 that is attached to a hole formed in the outer box 3 in an iron-fitting manner, and the drainage pipe 38 extends to the rear of the outer box 3. .
The drain connecting pipe 41 functions to connect the drain pipe 38 and the drain hose 24, and also prevents the heat insulating material 4 from leaking from the hole in the outer box 3. The drain hose 24 may be connected to the drain pipe 38 by sealing the gap between the drain pipe 38 and the hole in the outer box 3 with a sealing member so that the insertion portion 4 is a hole in the outer box 3. A second drain pipe 42 penetrates the heat insulating material 15 inside the protrusion 37 and runs between the mist receiver of the cooler 17 and the drain pipe 38.

In the present invention, a lower partition wall 7 is prepared in which a heat insulating material 15 incorporating a second drainage pipe 42 is combined with a wall member 14, and an inner box 2 and an outer box 3 are combined. Horizontal groove 43
The lower partition wall 7 is inserted into the support rail portions formed on the left and right side walls of the inner box 2 from the front inside the refrigerator so that the rear part of the lower partition wall 7 and the protrusion 37 are fitted and supported by the recess 361 and the recess 361, respectively.

With this insertion, the rear surface of the heat insulating material 15 comes into contact with the inner surface of the lateral groove 43, and the upper surface of the heat insulating material 15 comes into contact with or very close to the top surface of the lateral groove 43. Further, the heat insulating material 15 of the protrusion 37 is close to or in contact with the upper surface of the recess, and the rear surface of the insulating material 15 is in contact with the inner surface of the recess 37. Also, with this insertion, drain pipe 3
8 is inserted into a hole in the outer box 3 through a hole 39 in the inner box, and the hole 39 in the inner box is closed by the wall member 14. After that, the drain connecting pipe 41 is attached to the hole in the outer box 3 so as to fit the drain pipe 38. In this assembled state, the space between the inner box and the outer box is filled with a foamable polyurethane heat insulating material 4 using an in-situ foaming method. This insulation material 4 is the drain pipe 38
At the same time, the area around the lateral groove 43 and the recess 36 is pressed with foaming pressure to improve the contact between the inner box 2 and the heat insulating material 15, and the sealing of this area is sufficient. As the present invention is configured as described above, the number of parts required to form the drainage channel for the defrosting water of the cooler is small, and the drainage channel penetrating the main body is formed by incorporating the partition wall, so that assembly work is not required. It is extremely simplified.

In addition, the drainage from the partition wall to the outside of the refrigerator passes through the main body without passing through the lower chamber, so there is no need for a protective cover like in the past. Furthermore, since the drain pipe penetrating the main body is reliably covered with the insulation layer constituting the main body, the drainage channel leading from the cooler room to the outside of the refrigerator is sufficiently insulated. That is, at the iron joint between the protrusion of the partition wall and the recess of the inner box, the second drain pipe is located in the heat insulating material within the protrusion, and the first drain pipe is located in the heat insulating material of the main body. The drainage canal will have good insulation. Further, support and sealing of the rear part of the partition wall can be achieved by the iron fitting between the horizontal groove and the partition wall and the saddle fitting between the protrusion and the recess, so that there is a gap between the rear surface of the partition wall and the inner box. A sufficient seal can be achieved without providing a sealing material as in the case of a secondary tank, and the partition wall can be stably supported by the inner box.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of a conventional refrigerator, FIG. 2 is a sectional view showing a drainage channel section of the partition wall section in FIG. 1, FIG. 3 is a longitudinal sectional side view of the drainage channel section of the present invention, and FIG. 4 5 is a vertical cross-sectional view showing the supported state of the rear part of the partition wall of the present invention, FIG. 5 is a vertical cross-sectional side view corresponding to the air blowing shore part of the present invention, and FIG. 6 is a cross-sectional plan view showing the rear part of the partition wall of the present invention. . 1...refrigerator body, 2...inner box, 3...
... Outer box, 4 ... Insulation material, 5 ... Partition wall body, 6 ... Top finishing wall, 7 ... Bottom partition wall, 14
...Kabemura, 15...Insulation material, 18...
...Cooler room, 27...Blower, 36...Recess, 37...Protrusion, 38...First drain pipe, 39
...Inner box hole, 40...Insertion part, 42
...Second drainage pipe, 43...Horizontal groove. Figure 6 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1. A refrigerator body with a front opening, which is formed by filling an inner box, an outer box, and a space between these two boxes with a foamed heat insulating material, and a refrigerator body formed within the main body that is substantially insulated into upper and lower chambers. an insulating partition wall installed in the main body so as to partition the main body; an air cooler that circulates cold air cooled by a cooler disposed on the partition wall to the upper and lower chambers through a cold air passage; In a refrigerator provided with a drainage channel for discharging defrosting water to the outside of the refrigerator, the partition wall has a flexible heat insulating material forming a rear surface over approximately the width of the partition wall, and the rear surface of the partition wall is A lateral groove formed in the back wall of the inner box to accommodate storage over the width thereof, a recess formed in the inner box so as to be recessed further rearward in a part of the lateral groove, and the partition wall to fit into the recess. a protrusion protruding rearward; a first drainage pipe formed to extend diagonally downward rearward from the protrusion integrally with the lower surface forming member of the partition wall; a second drainage pipe that communicates between the receiving part and the first drainage pipe; a hole provided in the inner box of the recessed part through which the first drainage pipe passes; and a hole provided in the back wall of the outer box. A refrigerator comprising: an insertion part through which the tip of the first drain pipe is inserted.