JPS5833516Y2 - Reizoko - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improved structure of the outer box of a two-temperature refrigerator in which the refrigerating compartment is divided into upper and lower parts, each of which is provided with a door body.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a heat insulating box body of a refrigerator, an inner freezer box 4 forming a freezer compartment 3 in the upper part of the outer box 2, and an inner refrigerator box forming a refrigerator compartment 5 in the lower part. 6 are disposed inside the outer box 2 with a space therebetween, and a heat insulating material 7 is filled between these two phases.

The front openings of the freezer compartment 3 and the refrigerator compartment 5 are provided with independent heat insulating door bodies 8 and 9, respectively, and one side of the door bodies 8 and 9 has an upper hinge 10 screwed onto the outer box 2; intermediate hinge 11
and is rotatably pivoted to the flat hinge 12.

Outward flanges 13, 13 are provided at the front opening ends of both of the inner phases 4.6, which overlap with an inward flange 14 formed at the front opening end of the outer box 2, which will be described later, and are inserted into the outer box 2. However, as mentioned above, since both the inner phases 4.6 are each independent box-shaped, the outer flange 13 formed on the lower side of the inner refrigerator box 4 and the outer flange 13 of the inner refrigerator box 6 are The seven outward flange 13 formed on the upper side are respectively overlapped and locked to a partition front plate 15 that divides and bridges the front opening of the outer box 2 into upper and lower sections.

The outer box 2 has a box shape with an open front, and a gasket abutment flange 17 is provided on the periphery of the front opening with which a gasket 16 attached to the heat insulating door bodies 8 and 9 comes into airtight contact.
At the same time, a stepped portion 18 is formed at the inner circumferential end, and a groove portion 1 is formed on the back surface of the Gaskent contact flange 17.
9, and an inward flange 14 which is bent inward from the stepped portion 18 is continuously formed.

The partition front plate 15 is bridged at a position that divides the outer box 2 into upper and lower sections, and has the same shape and function as the front opening periphery of the outer box 2.

That is, the front wall 20 corresponds to the gasket abutting flange 17, and has stepped portions 18', 18' at its upper and lower ends, and inward flanges 14', 14', so that the inner faces 4, 6 is constructed to be able to securely overlap and lock, and the gaskets 16 of the heat insulating door bodies 8 and 9 can be brought into airtight abutment.

Further, the length dimension of the partition front plate 15 matches the width dimension of the stepped portions 18, 18 formed on both sides of the outer box 2, and the flange 21, which has both ends bent, has a 21 surface and the above-mentioned both side paragraphs. The structure is such that the parts 18 and 18 surfaces can be polymerized.

In such a configuration, the stepped portion 18, the flange 21°, and the reinforcing metal fitting 22 are screwed together from the partition front plate 15 side of the flange 21, 21 through the reinforcing metal fittings 22°22.
3, etc., the partition front plate 15 is firmly fixed to the outer box 2, and the width dimension of the outer box 2 is maintained reliably, and both the inner phases 4 and 6 are securely set in the predetermined positions. I'm trying to make it possible.

The inner freezer box 4 is formed of an aluminum plate into a box shape, and a refrigerant evaporation tube 24 is wound around the outer periphery in a heat exchange relationship.
The outward flange 13 formed at the front opening end of the freezer compartment 3 is a regular breaker which can be molded from a thermally poor conductor material such as a synthetic resin material that can be manufactured separately from the aluminum plate. It consists of a member called a strip.

One of the inner refrigerator boxes 6 has an aluminum plate placed on its rear wall 25, and refrigerant evaporation pipes 24' are arranged in a meandering manner in a heat exchange relationship with respect to the plate to maintain cooling of the refrigerator compartment 5. It's forcing me.

As these chambers 3 and 5 are cooled, heat leaks from the gasket 16 portions of the insulating door bodies 8 and 9 located on the opening side, and in particular, the gasket contact flange 17 portion of the outer box 2 is cooled. It is something that

Along with this cooling effect, moisture in the atmosphere condenses in the area,
These water droplets flow down and wet the floor, etc.

In order to prevent these dew condensation phenomena, it is necessary to heat the gasket abutting flange 17 portion.

Conventionally, therefore, an electric heater cord has been disposed in the groove 19 formed on the back surface of the gasket abutting flange 17 to heat the gasket.

These electric heater cords have been favorably used because they are bendable and can be easily installed in parts with complex shapes, but they are not preferred in terms of the amount of electricity used.

Therefore, as shown in FIG. 6, the refrigerant flow pipe on the high pressure side of the refrigeration unit 26 circuit, that is, the hot gas pipe 27 through which high temperature and high pressure gas flows, is connected to the gasket contact flange 1 of the outer box 2.
It is arranged in the groove 19 on the back side of 7 to effectively utilize waste heat.

The refrigeration unit 26 is located in the lower machine room 28 of the insulation box body 1.
The real gas pipe 2 is connected to the electric compressor 29 installed in the
7, a condenser 30, a dryer 31, a capillary tube 32, and the refrigerant evaporation tubes 24 and 2i, which are then connected in an annular manner to an electric compressor 29 to form a normal refrigeration cycle.

However, since the real gas pipe 27 is formed of a hollow metal tube, it has rigidity and can be easily and effectively disposed over the entire area of the outer box 2 to prevent condensation. It is something that cannot be done.

That is, the back surface of the partition front plate 15 has a strong tendency to bend, which requires easy assembly work and requires a large number of parts to be arranged and fixed, which is not preferable.

In this case, as shown in the figure, a hot gas pipe 27 passing through one side groove 19 of the outer box 2 is bent at a portion where the partition front plate 15 is located to form an introduction part 38, and the introduction part is connected to the outer case. It passes through the step part 18 of 2 and the introduction notch 34 cut out in the flange 21 of the middle partition front plate 15, along the back surface of the middle partition front plate 15, and forms a U-turn part 35 at the tip, and then the -
It is led out to the side groove part 19, and a lead-out part 36 is formed corresponding to the introduction part 33, and a lead-out notch 37 is formed in the outer box 2, the stepped part 18 of the inner partition front plate 15, and the flange 21 in the same way. The shape is derived through the

Of the reinforcing metal fittings 22.22 for fixing the inner partition front plate 15 to the outer box 2, one end of the metal fitting has a cross-sectional shape and one side 38 overlaps with the flange 21 of the inner partition front plate 15. , the other side 39 overlaps the back surface of the partition front plate 15.

Wire holes 10, 10 are provided on the other side 39 so that the intermediate hinge 11 attached to the front side of the intermediate partition front plate 15 can be screwed in with a screw 41, etc., and an overhang is formed on both sides of the tip. The real gas pipe 2 is connected with the claw pieces 42, 42.
The introduction part 33 and the lead-out part 36, which are particularly rigid and difficult to move freely, are simultaneously pressed and supported on the back side of the partition front plate 15.

That is, the claw piece 42 is formed to protrude from the other side 39 of the reinforcing metal fitting 22, and even if an excessive repulsive force acts on the claw piece 42 when pressed, the claw piece itself deforms 1-1 The entire reinforcing metal fitting 22 Since it does not cause deformation to the partition front plate 15
There is no gap between the back surface of the reinforcing metal fitting 22 and the mounting surface of the reinforcing metal fitting 22. Even if, for example, a foamed urethane heat insulating material is used as the heat insulating material 7, the heat insulating material can be removed from the mounting hole 43 of the intermediate hinge 11 of the part. This has the advantage that there is no leakage to the outside, and the wire hole 40 for attaching the intermediate hinge 11 can be reliably obtained, making assembly work easier.

Additionally, a reinforcing metal fitting 22 is attached to the other end side of the partition front plate 15.
The other side 39 is attached along the back surface of the partition front plate 15, and a claw piece 41 is formed at the tip to connect the U-turn portion 35 of the hot gas pipe 27 to the partition. It is pressed and supported on the back side of the front plate 15.

Incidentally, the straight pipe portion of the hot gas pipe 27 located between these reinforcing metal fittings 22, 22 can be relatively easily attached to the middle partition front plate 15.
It goes along the back surface, and can be pressure-adhered with adhesive tape or the like if necessary.

Since the present invention is constructed as described above, the heat of the hot gas pipe can be well conducted to the front plate of the middle partition, and the sweat condensation effect on the front plate of the middle partition can be effectively prevented, and the hot gas pipe for the front plate of the middle partition can be Even if there is springback or twisting that occurs when the real gas pipe for the outer box opening edge is continuously bent, the inlet and outlet parts should be supported with reinforcing metal fittings near the bent parts. As a result, the hot gas pipe can be held approximately constant without separating from the outer box opening edge or the partition front plate.

Therefore, unevenness in the heating temperature distribution of the inner partition front plate is reduced, and the bending of the hot gas pipe does not require skill or strict precision. Bending forming work and assembly work become easier.

[Brief explanation of drawings]

Fig. 1 is an external perspective view of a refrigerator with a main outer box excluding the door body, Fig. 2 is a sectional view taken along the line ■-■ of Fig. 1, and Fig. 3 is an exploded perspective view of main parts of the main outer box. Figure 4 is an enlarged back view of the main parts of the outer box, and Figure 5 is an enlarged back view of the main parts of the outer box.
FIG. 6 is a cycle diagram of the refrigeration unit used in the present invention. 15... Inner partition front plate, 27... Hot gas pipe,
21...Flange, 22...Reinforcement fitting, 11...
Intermediate hinge.

Claims (1)

[Scope of utility model registration request] A middle partition front plate that divides the front opening of the outer box, and a hollow tube that is bent and arranged along the back surface of the opening edge of the outer box to form a hot gas pipe, and that is continuous from the middle of the hot gas pipe. an introduction part that is bent and arranged on the back side of the partition front plate;
A hot gas pipe for the partition front plate formed by a U-turn part and a lead-out part, and 7 lunges that press and support the hot gas pipe to the back surface of the partition front plate and are bent at both ends of the partition front plate. reinforcing metal fittings that overlap and are fixed to the opening edges on both sides of the outer box, and a flange of the inner partition front plate and the outer box for inserting the inlet and outlet parts of the hot gas pipe for the inner partition front plate. It is characterized by comprising a notch formed at the edge of the opening of the box, and a claw piece is formed on one of the reinforcing metal fittings to press the inlet and outlet parts of the hot gas pipe located near the notch. refrigerator.