JPH11173743A - Refrigerator and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the positioning of a drain pan accurate, and contrive the reduction of the number of parts and manhour, by equipping a refrigerator with a refrigerator box which is made by injecting foaming heat insulating material between an inner box and an outer box, and an opening which is provided in the place in contact with a drain pan for receiving the water at defrosting of a cooler and draining it out of the refrigerator. SOLUTION: This refrigerator is provided with a cold storage room at he uppermost part of a refrigerator box, a freezing room at the lowermost part o the refrigerator box, a vegetable room between the cold storage room and the freezing room, a cooler behind the cold storage room, and a blower above it. Furthermore, there is a heater 11 for defrosting of a glass tube, and a drain pan 12 for receiving the defrosted water and discharging it out of the refrigerator, around the cooler. A plurality of openings 14 of about ϕ 5 mm are opened at the contact face with the drain pan 12, at the inner box 1, and when foaming heat insulating material 3 is injected between the inner box 1 and an outer box 2, the drain pan 12 bond with the foaming heat insulating material 3, in the opening 14, and it is fixed firmly to the inner box 1. Accordingly, at the time of fixing of the drain pan, there is not necessity to use fixing parts, and the number of parts can be reduced and the manhour can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator and a method for fixing a defrosting tray for defrosting.

[0002]

FIG. 6 is a side sectional view of a conventional refrigerator.
In the figure, 1 is an inner box, 2 is an outer box, 3 is a foam insulating material, 4
Is a refrigerator room arranged at the top of the refrigerator box, 5 is a freezing room arranged at the bottom of the refrigerator box, 6 is a vegetable room arranged between the refrigerator room 4 and the freezer room 5, and 7 is a refrigerator room. A partition for partitioning the refrigerator compartment 4 and the vegetable compartment 5, a partition 8 for partitioning the vegetable compartment 6 and the freezer compartment 5, and a back side of the partition 8 for storing a cooler 9, a blower 10 and the like. Constitutes the front wall. A cooler 9 is provided in a cooler room behind the vegetable room 6 and a blower 10 is provided above the cooler.

FIG. 7 is a side cross-sectional view showing the vicinity of a cooler of the above-mentioned conventional refrigerator. As shown in the drawing, a foam heat insulating material 3 is injected between an inner box 1 and an outer box 2. Reference numeral 11 denotes a glass tube defrost heater installed below the cooler 9. Reference numeral 12 denotes a dew tray for receiving defrost water, which is fixed to the inner box 1 with screws.
Reference numeral 13 denotes an inner jig.

FIG. 8 is a side sectional view of another conventional refrigerator. The dew tray 12 and the partition 8 are formed of styrofoam.

Japanese Utility Model Application Laid-Open No. 30988/1985 discloses a fan-type refrigerator having a dew tray attached to an inner box and a gap formed between the dew tray and an evaporator, and a duct formed by styrene foam. There is disclosed a fan-type refrigerator-freezer in which a connection part between an inner box and a dew pan is covered with a part of the body and a foaming heat insulating material is injected into the back face.

[0006]

Since the conventional refrigerator is constructed as described above, the dew tray 12 is attached to the inner box 1 and the foam insulating material 3 is injected between the inner box 1 and the outer box 2. At the time of foaming, since the foaming pressure of the foamed heat insulating material 3 is applied to the dew tray 12 of the injection molding, it is necessary to fix the dew tray 12 to the inner box 1 with screws or tapes, and the number of parts and man-hours are increased. there were.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is an object of the present invention to provide a refrigerator capable of accurately positioning a dew tray and reducing the number of parts and man-hours.

[0008]

SUMMARY OF THE INVENTION A refrigerator according to the present invention comprises a refrigerator box formed by injecting a foamed heat insulating material between an inner box and an outer box, and cool air circulating in a refrigerator in the inner box. And a dew tray provided below the cooler and receiving water when the defroster of the cooler drains out of the refrigerator, and an opening provided at a location in contact with the dew tray of the inner box. It is provided.

Further, the dew tray is provided with a claw-shaped portion which engages with the opening.

[0010] The method of manufacturing a refrigerator according to the present invention is characterized in that when injecting the foamed heat insulating material between the inner box and the outer box, the dew tray is pressed from above by the inner jig.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of a refrigerator according to Embodiment 1 of the present invention. In the figure, 1 is an inner box, 2 is an outer box, 3 is a foam insulation material, 4 is a refrigerator room arranged at the top of the refrigerator box, 5 is a freezer room arranged at the bottom of the refrigerator box, and 6 is refrigeration. A vegetable compartment disposed between the compartment 4 and the freezer compartment 5, a partition 7 for dividing the refrigerator compartment 4 and the vegetable compartment 6, and a compartment 8 for dividing the vegetable compartment 6 and the freezer compartment 5. Reference numeral 9 denotes a cooler provided behind the freezer compartment 5, and a blower 10 is provided above the cooler 9.

FIG. 2 is a side sectional view showing the periphery of the cooler of the refrigerator according to the first embodiment of the present invention. In the figure, 11
Reference numeral denotes a glass tube defrost heater, and reference numeral 12 denotes a dew tray for receiving defrost water and discharging the defrost water to the outside of the storage. The inner box 1 has a plurality of openings 14 having a diameter of about 5 mm at a contact surface with the dew receiving tray 12.
When the foam insulation material 3 is injected between the inner box 1 and the outer box 2,
At the opening 14, the dew receiving tray 12 is adhered to the foam heat insulating material 3 and fixed to the inner box 1.

Embodiment 2 FIG. FIG. 3 is a side sectional view showing a refrigerator around a refrigerator according to Embodiment 2 of the present invention. In the figure, reference numeral 13 denotes an inner jig for preventing deformation of the inner box 1 and the attached parts against the pressure at the time of injection of the foamed heat insulating material 3. The dew tray 12 is prevented from rising by pressing the dew tray 12 from above with the inner jig 13.

Embodiment 3 FIG. 4 is a side sectional view showing the periphery of a cooler of a refrigerator according to Embodiment 3 of the present invention. In the figure, an inner box 1 has an opening 1 at a contact surface with a dew tray 12.
4 is open, the claw-shaped part 15 provided on the dew tray 12 is inserted into the opening part 14 and the inner box 1 and the dew tray 12 are fixed to prevent floating.

FIG. 5 shows a manufacturing procedure when a refrigerator box is formed of an inner box, an outer box, a foamed heat insulating material, a dew tray, and the like. The reason why the dew tray is attached before the foam insulation is injected between the inner box and the outer box is to attach the dew tray to the inner box without gaps. Compared with the conventional example, in the refrigerator of the present invention in which the exposure tray is formed of a plastic molded product, not only the type of the heat insulating material but also the type of the foamed heat insulating material is increased, and the strength of the box body is increased due to the adhesive force of the foamed heat insulating material. I am aiming.

[0016]

The refrigerator according to the present invention comprises a refrigerator box formed by injecting foam insulation between an inner box and an outer box;
A cooler that generates cool air to circulate in the inside of the inner box, a dew tray that is provided below the cooler, and that drains water during defrosting of the cooler to the outside of the cooler, and contacts a dew tray of the inner box. With the configuration provided with the opening provided at the position where the dew tray is fixed, it is not necessary to use a fixing component when fixing the dew tray, so that the number of components can be reduced and the number of steps can be reduced.

Further, by providing the dew tray with a claw-shaped portion which engages with the opening, the floating of the dew tray can be suppressed more reliably.

Further, in the method of manufacturing a refrigerator according to the present invention, when the foamed heat insulating material is injected between the inner box and the outer box, the dew tray is pressed from above by the inner jig. Can be suppressed.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a refrigerator according to Embodiment 1 of the present invention.

FIG. 2 is a side sectional view showing the periphery of a cooler room of the refrigerator according to the first embodiment of the present invention.

FIG. 3 is a side sectional view showing the periphery of a cooler room of a refrigerator according to a second embodiment of the present invention.

FIG. 4 is a side sectional view showing the periphery of a cooler room of a refrigerator according to Embodiment 3 of the present invention.

FIG. 5 is a diagram showing a manufacturing procedure of the refrigerator box according to the embodiment of the present invention.

FIG. 6 is a side sectional view of a conventional refrigerator.

FIG. 7 is a side sectional view showing the periphery of a cooler room of a conventional refrigerator.

FIG. 8 is a side sectional view of another conventional refrigerator.

[Explanation of symbols]

1 inner box, 2 outer box, 3 foam insulation, 4 refrigerator compartment, 5
Freezer compartment, 6 vegetable compartment, 7 compartments, 8 compartments,
9 cooler, 10 blower, 11 glass tube heater,
12 dew tray, 13 inner jig, 14 opening, 15 claw-shaped part.

Claims (3)

[Claims] 1. A refrigerator box formed by injecting a foamed heat insulating material between an inner box and an outer box; a cooler for generating cool air to be circulated in a refrigerator in the inner box; A dew tray for receiving water when the defroster of the cooler is drained out of the storage, and an opening provided at a location where the inner box comes into contact with the dew tray. Refrigerator to feature. 2. The refrigerator according to claim 1, wherein said dew tray is provided with a claw-shaped portion for engaging with said opening. 3. The method for manufacturing a refrigerator according to claim 1, wherein when the foam insulating material is injected between the inner box and the outer box, the dew tray is pressed from above by an inner jig. A method for manufacturing a refrigerator, comprising: