JPH0198876A - Refrigerator - Google Patents

Abstract

PURPOSE: To achieve a higher workability during the serving of a cooler by a method wherein the cooler is installed across a rear wall and a mid partition wall of a freezing compartment, the lower end of the cooler is fixed utilizing a gutter receiving defrosted water while a cooled air path or the like is formed with the gutter as reference. CONSTITUTION: A cooled air bypass path part 11b is arranged at the central part of a gutter 11 to prevent local clogging by frost at a lower part of a cooler 9 and when a gutter heater 12 installed at this portion is housed while the cooler 9 is inserted into the gutter 11, a side plate 9a is grasped by a grasping part 11a. Further based on a retaining piece 11c of the gutter 11 as reference, a cooled air partition 14 and a cooled air louver 15 are assembled. An inlet pipe and outlet pipes 9b and 9c of the cooler 9 horizontally traverse an upper part of the cooler 9 so that the elasticity at this portion is utilized to pull out the lower end part of the cooler 9 inserted into a mid partition wall 6 into a freezing compartment 4. Moreover, a capillary tube 25 and a refrigerant suction pipe 26 connected to the inlet pipe and the outlet pipes 9b and 9c of the cooler 9 are extended out of a through hole 27 provided in the ceiling of an inner case 3.

Description

[Detailed description of the invention] [Field of application of the invention] The present invention relates to a refrigerator.

[Background of the invention]

The structural and physical problems of conventional refrigerators are as follows when compared with commonly used refrigerators in which the partition wall that separates the freezer and refrigerator compartments is not integrally formed with the inner box. There was a problem.

(1) Cold air ventilation channels, defrost water drainage channels for coolers, etc. are inserted in advance into the integrally molded partition section before foaming on site, and the heat from the partitions is moved by the foaming pressure during foaming. It must be securely fixed to the inner box.

(2) If the heat from the partition is moved as described above, it will be difficult to process the defrosting water from the cooler installed at the back of the freezer compartment, and the relationship between the cooler and the ventilation path will be disrupted, resulting in poor cooling performance. This caused variation.

(3) Cold air partition plate attached to the front of the cooler.

In conventional refrigerators, the top plate of the inner partition wall is molded by injection molding, etc., so parts such as the cold air direction plate can be mounted in one piece, so the protrusions or recesses can be molded into one piece, whereas the inner box with the inner partition integrally molded can be installed in one piece. Since it is formed from a single sheet by vacuum forming or the like, it is very difficult to form protrusions and depressions, and when attaching these parts, separate parts are required and many steps are required.

The present invention has been made to improve these problems. That is, the partition wall that separates the freezer compartment and the refrigerator compartment is molded integrally with the inner box that forms the freezer compartment and the refrigerator compartment, and the cooler is installed across the back wall and the partition wall of the freezer compartment. The lower end of the cooler is fixed using a gutter that receives defrosting water, and a cold air ventilation path is formed using the gutter as a reference.

[Purpose of the invention]

An object of the present invention is to provide a refrigerator with improved workability during service of the cooler.

[Summary of the invention]

That is, the above purpose is to insert a hole in the partition wall that partitions the freezer compartment and the refrigerator compartment, and a hole provided in the deep part of the inner box forming the bottom of the freezer compartment, and to insert the hole in the freezer compartment. an inlet pipe and an outlet pipe of the cooler are respectively connected to a capillary tube and a refrigerant suction pipe, one end of which extends from the inner box into the freezing chamber.
Ni>! This is achieved by making the refrigerator

[Embodiments of the invention]

The details of the present invention will be explained below with reference to an embodiment shown in FIGS. 1 to 3. Reference numeral 1 represents a refrigerator body, and 2 represents an outer box.

3 is an inner box, and this inner box 3 integrally forms a partition wall 6 that partitions a freezing compartment 4 and a refrigerating compartment 5.

7 is a foamed heat insulating material filled between the outer box 2 and the inner box 3.

Reference numeral 8 denotes partition cutting heat, which is applied to the foamed heat insulating material 7 after being assembled in advance into the partition wall 6 formed by the inner box 3.
Fill it with 2 foams. Reference numeral 9 denotes a cooler, which is attached to the back side of the freezer compartment 4 so as to straddle the partition wall 6 between the freezer compartment 4 and the freezer compartment 4 . In addition, to enable this installation,
A hole 1o into which a cooler 9 is inserted is provided in the inner part of the inner box 3 forming the bottom surface of the freezer compartment 4. A gutter 11 is installed below the cooler 9 so as to wrap around the lower end of the cooler 9, and also wrap around the hole 10 at the same time.

The cross-sectional view of the gutter 11 is as shown in FIG. 3, and the left and right ends have clamping parts 11a whose diameter is slightly larger than the width of the side plate 9a of the cooler 9, and the central part has a cooling part 11a. Cold air bypass passage section 9b set larger than the width of the container 9
The former clamping part 11a clamps and fixes the side plate 9a at the lower end of the cooler 9, and the latter cold air bypass passage part 9b is a gutter heater 12 that is generally installed for the purpose of eliminating residual frost during defrosting. and a cooler 9 near the cold air intake port.
A gap is maintained between the cooler 9 and the cooler 9 to alleviate frost clogging.

11c is a locking piece that is molded integrally with the gutter 11;
It protrudes into the freezer compartment 4 from the hole 10, and is used to fix a cold air partition plate and a cold air direction plate, which will be described later.

Note that the gutter 11 configured as described above is inserted in advance into the recess 8a formed in the partition cutter 8.
Both are assembled in the inner box 3, and a foamed heat insulating material 7 is injected and foamed. Reference numeral 8b indicates a cold air suction passage for the refrigerator compartment, and reference numeral 8c represents a cold air suction passage for the freezer compartment, which are formed within the partition heat 8. This is a ventilation path for returning cold air from the freezer compartment 4 to the cooler 9. Also, the cooler 9 of these ventilation passages
There are ventilation holes 9d and 9 in the gutter 11 at positions corresponding to the side end openings.
e is provided.

13 is a fan, 14 is a cold air partition plate, and 15 is a cold air direction plate. This cold air partition plate 14 is installed in front of the cooler 9, and its lower end is attached to the locking piece 11c of the gutter 11.
A claw 14a provided at the upper end engages with a hole in the inner box 3 and is fixed. The cold air direction plate 15 is installed further forward of the cold air partition plate 14 to distribute the cold air discharged from the fan 13 into the freezer compartment 4, and has a lower end attached to the locking piece 11c of the gutter 11 and an upper end attached to the locking piece 11c of the gutter 11. The locking piece 15a is attached to the cold air partition plate 14
It is engaged and fixed to an engagement piece 14b provided in the.

Reference numeral 16 denotes a cold air discharge passage for the refrigerator compartment, and the cold air discharged by the fan 13 is passed through the cold air partition plate 14. The cold air is taken in from the cold storage room cold air discharge port 17 provided between the cold air ventilation plates 15 and guided to the cold storage room cold air discharge port 18 provided at the back of the ceiling of the cold storage room 5 of the inner box 3 forming the partition wall 6. This is formed on the side and bottom surfaces of the cooler 9 by the duct heat insulation 32 and the partition heat 8 .

Reference numeral 19 denotes an automatic damper thermo, which automatically controls the amount of cold air discharged to the refrigerator compartment 5 and adjusts the internal temperature of the refrigerator compartment 5, and is surrounded by a thermoinsulator 20 to provide insulation. has been done. Honta automatic damper 19. The thermoinsulation 20 is assembled in advance, and the assembled part inserts the upper end flange 19a of the automatic damper 19 into the cold air discharge outlet 18 of the refrigerator compartment via the sealing material 21, and then the thermoinsulation 20 is assembled. By fitting the lower end into the protrusion 3a provided on the back side of the refrigerator compartment of the inner box 3, the sealing material 21 is compressed, and the refrigerator compartment discharge ventilation passage 16 and the discharge ventilation passage 19b in the automatic damper 19 are completely closed. It is designed to be connected to.

19c is a cold air outlet for the refrigerator compartment, and 19d is a low temperature container outlet, and the discharge air passage 19b branches in the middle to form both. 22 is a low temperature container, and a low temperature container outlet 19
It is located in front of d.

Reference numeral 23 denotes a decorative panel, which is fitted into the refrigerator compartment cold air outlet 18 and the protrusion 3a of the inner box 3 so as to cover and wrap the assembled automatic damper thermostat 19 and thermoinsulator 20 from the front and below. It also prevents parts from coming off forward.

Ensures the connection of cold air ventilation ducts. Reference numeral 24 denotes a temperature adjustment dial of the automatic damper thermostat 19, which is attached to the entire surface of the decorative panel 23.

25 is a capillary tube, 26 is a refrigerant suction pipe, most of which are buried in the foam insulation material 7, and a part of the end extends into the freezing chamber through a through hole 27 provided in the ceiling of the inner box 3. It is connected to an inlet pipe 9b and an outlet pipe 9c of the cooler 9, respectively. Furthermore, the through hole 27 is the inlet of the cooler.

The outlet pipes 9b and 9c are provided on the side opposite to the outlet side of the cooler 9 main body, and the cooler inlet and outlet pipes 9b and 9c cross left and right above the cooler 9 and are inserted into the partition U6. The lower end of the cooler 9 is made elastic so that it can be pulled out into the freezer compartment 4. 28 is a screw for fixing the upper part of the cooler 9 to the inner box 3.

29 is a cold air suction grill for the freezer compartment, which is designed to suck in cold air from the freezer compartment 4 and send it to the freezer compartment suction air passage 8c;
A fitting groove 29b is inserted into one end of the hole 33 and a claw provided below in the opposite direction so as to cover the hole 33 of the inner box, which is opened at a position corresponding to the entrance of the freezer compartment suction air passage 8c. The portion 29a is inserted and fixed into a square hole of a fixture to be described later.

30 is a fixture, which is glued to the front F end of the partition cutting heat 8;
Alternatively, it is fixed by simultaneous molding, etc., and the top surface has a square hole 30a that fits and fixes the claw part 29a of the cold air intake grille 29 of the freezer compartment, and the front surface has a square hole 30a that fits and fixes the partition wall 8 of the inner box 3. A boss portion 30b to be fixed to is integrally molded. The boss portion 30b is fixed to the inner box 3 from the front surface of the inner partition wall 6 with screws 31.

Since the embodiment of the present invention is constructed as described above, the following effects can be obtained.

Insert the partition cutting heat 8 into the partition wall 6 of the inner box 3 that is integrally molded, and use the boss portion 30b of the fixture 30 fixed to the partition cutting heat 8 to securely attach the inner box 3 with the screws 31. After being fixed, the foamed heat insulating material 7 is injected and foamed twice, so that the partition cutting heat 8 can be prevented from moving due to the foaming pressure during the first foaming, and the square hole 3a integrally formed with the boss portion 30b can be prevented from moving.
The freezer compartment cold air suction grill 29 can also be fixed using this.

In addition, since the cooler 9 is fixed by simply inserting its lower end into the clamping part 11a of the gutter 11, no special parts are required, and workability is improved. Furthermore, since there is a cold air bypass passage 11b in the center of the gutter 11, the lower part of the cooler 9 is prevented from being locally clogged with frost, and the gutter heater installed in this area is prevented from leaking. 12 and when inserting the cooler 9 into the gutter 11, the side plate 9a is held between the clamping parts 11a, so the cooler 9 does not shake back and forth, and the gutter heater 12 is cooled by the cooler 9. Furthermore, the cold air partition plate 14. Since the cold air direction plate 15 is assembled, the positional relationship of these parts will always remain constant even if the partition cutting heat material 8 moves slightly during foaming, and stable cooling performance 9 ventilation performance can be obtained. Furthermore, the connection between the cold storage cold air discharge passage 16 and the automatic damper 19 is achieved by fitting the automatic damper 19 and the thermoinsulation 20 together between the cold storage cold air discharge port 18 and the protrusion 38 of the inner box 3. Because it just fits together, no special mounting parts are required and workability is good. Furthermore, automatic damper 19. Since the thermoinsulation 20 is covered by the decorative panel 23, the connection of the cold air ventilation path is further ensured. In addition, since the inlet pipe and outlet pipes 9b and 9c of the cooler 9 cross the upper part of the cooler from left to right, the elasticity of these parts can be used to connect the cooler 9 inserted into the partition wall 6. Since the lower end can be pulled out into the freezer compartment 4,
Service replacement of the cooler 9 and its attached parts becomes possible. Further, a capillary tube 25 connected to the inlet and outlet pipes 9b and 9c of the cooler 90. Refrigerant suction pipe 26
Since it extends from the through hole 27 provided in the ceiling of the inner box 3, the H dimension shown in FIG. It will be further improved.

〔Effect of the invention〕

As explained above, the present invention allows the lower end of the cooler 9 inserted into the partition wall 6 to be pulled out into the freezer compartment 4 without removing the refrigeration cycle welding part, so that the cooler 9 and its accessories can be pulled out. Enables service replacement of parts and also allows for capillary tube 25. Since the refrigerant suction pipe 26 extends from the through hole 27 provided in the inner box 3, the elasticity of the inlet and outlet pipes 9b and 9c of the cooler 9 can be maximized, further improving workability during service. do.

[Brief explanation of the drawing]

1 is a longitudinal sectional view of a main part of a refrigerator provided with the present invention, FIG. 2 is a sectional view taken along line 1-1 in FIG. 1, and FIG. 3 is a sectional view taken along line 1-1 in FIG. 2. 1... Refrigerator body, 2... Outer box, 3... Inner box, 3a... Projection, 4... Freezer compartment,
5... Refrigerator room, 6... Partition wall,
7... Foam insulation material, 8... Partition cutting heat, 8
a... Concavity, 8b... Refrigerator room cold air suction ventilation path, 8c... Freezer room cold air suction ventilation path, 9... Cooler, 10... Extraction hole, 11...
Gutter, lla... Holding part, 11b... Cold air bypass ventilation path, 11c... Locking piece, 12... Gutter heater. 14...Cold air partition plate, 15...Cold air ventilation plate, 16
... Refrigerator room cold air discharge duct 18 ... Refrigerator room cold air discharge outlet, 19 ... Automatic damper thermo, 20 ... Thermo insulation, 21 ... Sealing material, 23
... Decorative panel, 25... Capillary tube, 26... Refrigerant suction pipe, 27... Through hole, 29... Freezer room cold air intake grill, 30... Fixture, 30a... Corner Hole, 30b・
...Boss department.

Claims (1)

[Claims] 1. A cooling hole provided in the freezer compartment by inserting the hole in the partition wall that separates the freezer compartment from the refrigerator compartment and the inner box that forms the bottom of the freezer compartment, and the hole in the inner box that forms the bottom of the freezer compartment. 1. A refrigerator, wherein an inlet pipe and an outlet pipe of the cooler are respectively connected to a capillary tube and a refrigerant suction pipe whose one end extends from the inner box into the freezing chamber.