KR20050078124A - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator having an outer casing and an inner casing coupled to each other with a foam filling space, and a heat insulating part filled in the foam filling space, wherein one side is inserted into the foam filling space and the other side of the outer casing is filled. An electric component casing coupled to the outer casing to be exposed to the outside and accommodating a plurality of electric components; At least one reinforcing protrusion protruding from an inner wall surface of the electric component casing to prevent deformation of the electronic component casing by foaming pressure generated when a foaming liquid for forming the heat insulating part is injected into the foaming material filling space; Characterized in that it comprises a. This provides a refrigerator capable of preventing deformation of the electrical component casing due to the foaming pressure.

Description

Refrigerator {Refrigerator}

The present invention relates to a refrigerator, and more particularly, to a refrigerator capable of preventing deformation of an electrical component casing containing electrical components by the foaming pressure generated when the foam liquid is injected into the foam material filling space.

Generally, a refrigeration cycle includes a compressor for compressing a refrigerant at high temperature and high pressure, a condenser that receives the compressed refrigerant from the compressor and condenses it into a liquid phase, and an evaporator that uses latent heat of evaporation to vaporize the liquefied refrigerant to cool the air in the refrigerator. Consists of a series of repetitive cycles.

The refrigerator is a home appliance that forms cold air based on such a refrigeration cycle, and includes a refrigerator main body divided into a freezer compartment that forms a relatively low temperature and a refrigerator compartment that forms a relatively high temperature as compared to the freezer compartment, and opens and closes the front openings of the freezer compartment and the refrigerator compartment. It is generally composed of a freezer door and a refrigerating chamber door. And the rear of the refrigerator main body is provided with an electrical equipment box containing various control parts, as an example of the electronic equipment model of the Utility Model No. 88-22299 is installed in the rear foam area of the refrigerator body, the circuit board fixture is formed with an elastic catching piece It is disclosed for a battlefield box having.

However, when installing the conventional electronic box in the refrigerator, the foam is filled between the inner casing and the outer casing forming the refrigerator body, so that the control box accommodated inside the electrical box is damaged by the foam pressure generated at this time. There is a problem that can be.

In addition, in the conventional electronic box, when the water flows along the rear surface of the refrigerator main body, there is no sealing structure to prevent the water from entering the inside of the electronic box, so if the moisture flows into the electronic box inside the electronic box There is a problem that the parts accommodated in the can be damaged.

In addition, if the structure for fixing the conventional electronic box to the rear of the refrigerator main body is also provided simply, it will be more desirable to reduce the manufacturing cost if the number of parts is reduced.

Accordingly, an object of the present invention is to provide a refrigerator capable of preventing deformation of the electrical component casing containing the electrical component by the foaming pressure generated when the foam liquid is injected into the foam material filling space.

According to the present invention, a refrigerator having an outer casing and an inner casing coupled to each other with a foam filling space, and a heat insulating part filled in the foam filling space, wherein one side is inserted into the foam filling space and the other side is inserted into the foam filling space. An electric component casing coupled to the outer casing to be exposed to the outside of the outer casing and accommodating a plurality of electric components; At least one reinforcing protrusion protruding from an inner wall surface of the electric component casing to prevent deformation of the electronic component casing by foaming pressure generated when a foaming liquid for forming the heat insulating part is injected into the foaming material filling space; It is achieved by a refrigerator comprising a.

The rear outer wall of the outer casing has an installation tool penetrating the plate surface, and the electrical component casing may be inserted into the installation tool.

In addition, the electrical component casing is formed with the opening and exit of the electrical component, the reinforcement projection may be formed to protrude toward the entrance opening from the inner wall surface of the electrical component casing.

On the other hand, when the foam liquid is injected into the foam filling space, the foam support member is installed on the outer peripheral wall surface of the outer casing to support the outer casing, the reinforcement projections and the inner wall surface of the electrical component casing It is preferable to be interposed between the foam support members.

In the electric component casing, a plurality of reinforcing ribs are preferably formed.

Here, the reinforcing rib is preferably a lattice shape.

Moreover, it is preferable that the inner wall surface of the said electric component casing is curved.

On the other hand, the electrical component casing is inserted into the foam material filling space, the electrical component accommodating portion for accommodating the electrical component; A flange portion extending in a plate direction along a circumferential region of the electric component receiving portion and disposed to be exposed to the outside of the outer casing adjacent to the installation hole; It may include a moisture blocking rib protruding to the lower plate surface of the flange portion, the moisture blocking rib in contact with the circumferential plate surface of the mounting hole to block the moisture from entering into the electrical component receiving portion.

Here, it is preferable that a bite jaw that one region of the circumferential plate surface of the installation tool bites is formed in one region of the flange portion.

On the other hand, it may further include a casing cover for opening and closing the entrance opening of the electrical component casing.

Here, the casing cover is preferably formed with a wing portion bent downward with respect to the plate surface of the casing cover in the peripheral end region.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a door open state of the refrigerator according to the present invention, Figure 2 is a rear perspective view of the refrigerator body of Figure 1, Figure 3 is an exploded perspective view of the electric component casing installation area according to Figure 2, Figure 4 is the full length of Figure 2 5 is a rear perspective view of the component casing, and FIG. 5 is a state diagram of fixing the outer casing to the foam support member before injecting the foam liquid into the foam filling space of the inner casing and the outer casing, and FIG. 5 is a schematic cross-sectional view taken along line VI-VI of FIG. 5 after the foaming liquid is injected into the foaming material filling space while the casing is fixed, and FIG. 7 is an enlarged view of the main portion of FIG.

The refrigerator according to the present invention includes a refrigerator main body (1) having a refrigerator compartment (10) and a freezing compartment (20) partitioned from side to side by an intermediate partition, and rotatably installed in the refrigerator body (1). It includes a refrigerator compartment door 11 and the freezer compartment door 21 for opening and closing the front opening of the freezer compartment 20. Inside the doors 11 and 21, door guards 13 and 23, which can accommodate bottles and the like, are disposed up and down. Here, in the freezing chamber 20, an ice making chamber 22 having an ice making device for ice making is partitioned at an upper portion thereof, and a plurality of freezing compartment shelves 27 and a freezing compartment storage drawer 25 are formed at the lower portion of the ice making chamber 22. It is arranged up and down. In the refrigerating chamber 10, a plurality of refrigerating chamber shelves 17 for partitioning the inside of the refrigerating chamber 10 are arranged up and down, and a plurality of refrigerating chamber storage drawers 15 are provided in the lower portion.

The refrigerator body 1 has a pair of left and right cooling chambers formed by an outer casing 5 having a substantially rectangular cylindrical shape forming an outer appearance, and a partition 106 accommodated inside the outer casing 5 and partitioning the inside. And an inner casing 3 forming 10,20. The space between the outer casing 5 and the inner casing 3 is a foam filling space, and the foam filling space is filled with a foam liquid such as urethane foam, and the foam liquid is dried. The heat insulation part 50 for maintaining heat insulation with temperature is formed.

On the other hand, in the rear of the refrigerator body 1, the machine room 7 which is arranged at the lower side and is equipped with various parts including the compressor, and the electric component casing 30 which is arranged above the machine room 7 and accommodates the electric parts therein, It is prepared.

The electric component casing 30 has a rectangular box shape in which the opening and closing opening 32 of the electric component is formed at one side thereof, and is inserted and coupled to the installation hole 9 formed through the rear plate of the outer casing 5, and the electric component casing 30 is formed. The entrance / exit 32 of the) is opened and closed by the casing cover 31.

The electric component casing 30 is inserted into the foam material filling space through the mounting hole 9 to receive the electric component accommodating part 33 and a plurality of electric component accommodating parts 33 along the circumferential area of the electric component accommodating part 33. And a flange portion 34 which is formed to be extended to be exposed to the outside of the outer casing 5 adjacent to the installation tool 9.

The flange portion 34 is disposed in contact with the recessed portion 8 recessed in the outer plate surface of the outer casing 5 adjacent to the mounting hole 9 along the circumferential direction, one side of the flange is the outer casing by screws 36 It is fixed to (5) and the other side is cut-out in one side area | region of this flange part 34, and is fixed to the outer casing 5 by the biting jaw 35 which is bitten by the peripheral plate surface of the installation tool 9.

The electrical component receiving portion 33 is inserted into the foam filling space through the mounting hole 9 and fixed to the outer casing 5 as the foam liquid injected into the foam filling space is dried. The deformation prevention means for preventing deformation of the bottom surface 40 of the electrical component accommodating portion 33 inserted into the foam material filling space by the foaming pressure generated at the time of injection is provided in the electrical component accommodating portion 33.

The deformation preventing means includes a reinforcement protrusion 41 protruding upward from the bottom surface 40 of the curved electrical component accommodating part 33 and the bottom surface 40 of the electrical component accommodating part 33 toward the access opening 32. And a lattice-shaped reinforcing rib 42 protruding from the bottom surface 40 of the electric component-accommodating part 33 toward the foam material filling space so as to face the reinforcing protrusion 41.

The bottom surface 40 of the curved electrical component accommodating part 33 resists the foaming pressure acting as a vertical load to prevent deformation, and the reinforcing ribs 42 have a plurality of support points formed in a lattice shape to form foaming pressure. Prevent deformation.

In addition, the foam support member 43 is installed on the outer peripheral surface of the outer casing 5 so that the outer casing 5 is not deformed by the foaming pressure when the foam liquid is injected into the foam filling space. When installed on the outer surface of the outer casing 5, the reinforcing rib 42 is interposed between the foam support member 43 and the bottom surface 40 of the electrical component receiving portion 33 to prevent deformation. That is, the reinforcement protrusion 41 interposed between the foam support member 43 and the bottom surface 40 of the electrical component receiving portion 33 has a foaming pressure acting in the A direction when the foam liquid is injected into the foam filling space. Attenuation will prevent deformation.

On the other hand, the refrigerator according to the present invention further includes a moisture inflow prevention means for preventing the inflow of moisture into the electrical component receiving portion (33).

The water inflow prevention means includes a wing portion 44 bent downward with respect to the plate surface of the casing cover 31 in the circumferential end region of the casing cover 31 and a water barrier rib 45 protruding from the lower plate surface of the flange portion 34. ).

The wing 44 is inclined at an angle of 20 degrees from the upper side of the recessed groove 47 formed in the depression 8, the moisture blocking rib 45 is in contact with the plate surface of the depression 8 along the circumferential direction It is to form a drain 46 that can move the moisture without flowing into the electrical component receiving portion (33). That is, if there is water on the outer plate surface of the outer casing 5, this water flows along the outer plate surface of the outer casing 5 and does not reach the recessed groove 47, and the taper of the casing cover 31 is not reached. It is quickly discharged to the outside in contact with the surface and some residual water flows along the wing portion 44 flows to both sides in the drainage path 46 formed by the water barrier rib 45 and the depression 8 plate surface.

Hereinafter, in the refrigerator according to the present invention having such a configuration, a method of installing the electric component casing 30 containing the electric component in the rear of the outer casing 5 will be described.

First, the installation of the outer casing 5 so that the bite jaw 35 formed in the flange portion 34 of the electric component casing 30 is caught by the recessed portion 8 adjacent to the mounting hole 9 of the outer casing 5. Sliding inserting the plate surface of the depression 8 adjacent to the sphere 9 into the chuck 35 formed in the flange portion 34 of the electric component casing 30 to fix one side of the flange portion 34 and the flange portion 34 The other side of) is fixed to the recessed portion 8 by a screw 36 fastened to a fastening hole passing through the flange portion 34 and the recessed portion 8.

Accordingly, the electrical component receiving portion 33 of the electrical component casing 30 is inserted into the foam material filling space through the installation opening 9 and the flange portion 34 of the electrical component casing 30 is recessed around the mounting portion ( 8) It is disposed above and exposed to the outside of the outer casing 5. At this time, the water blocking rib 45 of the flange portion 34 is in contact with the plate surface of the recessed portion 8 so that the water flowing on the outer surface of the outer casing 5 does not flow into the electrical component receiving portion 33. ).

Meanwhile, in the state where the electric component casing 30 is installed on the outer casing 5, the foam support member 43 is installed on the outer peripheral surface of the outer casing 5 to fix the outer casing 5 and the outer casing 5. When the foaming liquid is injected into the foam filling space between the inner casing 3 and the inner casing 3, foaming pressure is generated, and the outer casing 5 is supported by the foam supporting member 43 so as not to be deformed.

In addition, the electric component receiving portion 33 of the electric component casing 30 inserted into the foam material filling space into which the foaming liquid is injected is interposed between the foam support member 43 and the bottom surface 40 of the electric component receiving portion 33. The reinforcing protrusion 41, the reinforcing ribs 42 formed on the bottom surface 40 of the electric component receiving part 33, and the bottom surface 40 of the curved electric component receiving part 33 form a space for filling the foam material. Even if a large foaming pressure occurs when the foaming liquid flows in, deformation is suppressed as the foaming pressure is attenuated.

Thus, according to the present invention reinforcement interposed between the foam support member 43 and the bottom surface 40 of the electrical component receiving portion 33 in the electrical component receiving portion 33 inserted into the foam material filling space in which the foam liquid is injected Since the projection 41, the reinforcing rib 42 formed in the bottom surface 40 of the electric component receiving part 33, and the bottom surface 40 of the curved electric component receiving part 33 are provided, the foam material filling Even when a large foaming pressure is generated when the foaming liquid flows into the space, the foaming pressure is attenuated so that deformation of the bottom surface 40 of the electrical component receiving part 33 is prevented. In addition, since the deformation of the bottom surface 40 of the electronic component accommodating part 33 is suppressed, it is possible to prevent the electric component installed in the electronic component accommodating part 33 of the electric component casing 30 from being damaged.

In addition, according to the present invention, the water formed in the inclined wing portion 44 of the casing cover 31 and the flange portion 34 of the electrical component casing 30 to open and close the opening and closing 32 of the electrical component casing 30. As the blocking rib 45 prevents water from flowing into the electric component casing 30, damage to the electric component may be prevented by moisture infiltration.

In addition, since one side of the electric component casing 30 is slidably coupled to the outer casing 5 by the chuck 35 of the flange portion 34, the number of fastening parts may be reduced, thereby reducing the fastening work time and manufacturing cost. .

As described above, according to the present invention, there is provided a refrigerator capable of preventing deformation of the electric component casing due to the foaming pressure.

1 is a door open state diagram of a refrigerator according to the present invention;

2 is a rear perspective view of the refrigerator main body of FIG. 1;

3 is an exploded perspective view of the electric component casing installation area according to FIG. 2;

4 is a rear perspective view of the electric component casing of FIG. 2;

5 is a state of fixing the outer casing to the foam support member before injecting the foam liquid into the foam filling space of the inner casing and the outer casing,

6 is a schematic cross-sectional view taken along line VI-VI of FIG. 5 after the foaming liquid is injected into the foaming material filling space in a state where the outer casing is fixed by the foam supporting member of FIG. 5;

7 is an enlarged view illustrating main parts of FIG. 6.

        * Explanation of symbols for main parts of the drawings

1: refrigerator body 3: inner casing

5: outer casing 7: machine room

9: installation port 10: refrigerating chamber

20: freezer compartment 30: electric parts casing

31: casing cover 33: electrical parts receiving portion

34: flange portion 41: reinforcement protrusion

42: reinforcing rib 43: foam support member

44: wing portion 45: moisture blocking rib

47: recessed groove

Claims (11)

In the refrigerator having an outer casing and the inner casing coupled to each other with a foam filling space, and a heat insulating part filled in the foam filling space, An electrical component casing coupled to the outer casing such that one side is inserted into the foam material filling space and the other side is exposed to the outside of the outer casing; At least one reinforcing protrusion protruding from an inner wall surface of the electric component casing to prevent deformation of the electronic component casing by foaming pressure generated when a foaming liquid for forming the heat insulating part is injected into the foaming material filling space; Refrigerator comprising a. The method of claim 1, The rear outer wall surface of the outer casing is provided with a mounting hole penetrating the plate surface, The electric component casing is a refrigerator, characterized in that inserted into the installation port. The method of claim 2, The electrical component casing is formed with the opening and closing of the electrical component, And said reinforcing protrusion protrudes from said inner wall surface of said electric component casing toward said entrance opening. The method of claim 3, When the foam liquid is injected into the foam filling space, the foam support member is installed on a peripheral outer wall of the outer casing to support the outer casing. And the reinforcing protrusion is interposed between the inner wall surface of the electric component casing and the foam support member. The method according to claim 1 or 4, And a plurality of reinforcing ribs are formed in the electrical component casing. The method of claim 5, The reinforcing rib is a refrigerator, characterized in that the grid. The method of claim 6, And an inner wall surface of the electric component casing is curved. The method of claim 7, wherein The electrical component casing An electric component accommodating part inserted into the foam material filling space and accommodating the electric component; A flange portion extending in a plate direction along a circumferential region of the electric component receiving portion and disposed to be exposed to the outside of the outer casing adjacent to the installation hole; And a moisture barrier rib protruding from the lower plate surface of the flange portion and contacting the circumferential plate surface of the mounting hole to block water from flowing into the electric component receiving portion. The method of claim 8, Refrigerator, characterized in that the one side of the flange portion of the circumferential plate surface of the mounting portion bite jaw is formed. The method according to claim 8 or 9, And a casing cover for opening and closing the entrance and exit of the electric component casing. The method of claim 10, And the casing cover has a wing portion bent downward with respect to the plate surface of the casing cover in a peripheral end region thereof.