JPS6018789Y2 - refrigerator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a refrigerator in which an auxiliary door is further provided in addition to the door provided at the front opening of the refrigerator main body.

Generally, every time you open the refrigerator door, cold air leaks out and warm air enters the refrigerator, which has disadvantages such as adversely affecting stored items and increasing the operating rate of the compressor, increasing the amount of electricity used. be.

Therefore, it is known to provide an auxiliary door in addition to the main door so that only necessary items can be taken out.

However, since the auxiliary door is provided on the main door, a portion of the main door must be opened, which poses problems in terms of strength such as twisting caused by opening and closing the main door, and dew formation around the opening.

The present invention relates to the improvement of a refrigerator having such an auxiliary door, and is specifically designed to prevent the main door from twisting when opening and closing and to prevent dew from forming around the opening. explain.

In the figure, 1 indicates a refrigerator main body, and a freezer compartment door 5 and a refrigerator compartment main door 6 (hereinafter referred to as the main door) are attached to the front opening of the main unit 1 by an upper hinge 2, a middle hinge 3, and a lower hinge 4 so that they can be opened and closed. has been done.

This main door 6 has an outer panel 7, an inner panel 8, and a heat insulating material 9 between both panels 7 and 8.
A bulge 10 is integrally formed on both sides of the inner plate 8 to support a shelf, etc., which will be described later.

Reference numeral 11 denotes an outlet defined by a decorative frame 12 that connects both plates 7 and 8 to approximately the lower half of the main door 6, and has an opening width approximately equal to the width between the left and right bulges 10.

The lower end of the outlet 11 is pivotally connected to the outlet 11 by a hinge 13.
An auxiliary door 14 whose upper end opens and closes is provided, and like the main door 6, this auxiliary door 14 also has an outer panel 15, an inner panel 16, and a heat insulating material 1.
Consists of 7.

Reference numeral 18 denotes a gasket provided on the periphery of the back surface of the auxiliary door 14, which contacts the stepped portion 12a formed on the decorative frame 12 to seal it.

Reference numeral 19 denotes a storage shelf made of wire rod, which is located at the lower part of the outlet 11 opposite to the outlet 11, and is rotatably supported by pins 20 on the left and right bulges 10.

21 is spot welded on one side to the back surface of the outer panel 7 of the main door 6,
It is a frame-shaped reinforcing frame whose other side extends to a boss 12b that protrudes from the back surface of the stepped portion 12a of the decorative frame 12, and the boss 1
At 2b, it is screwed to the decorative frame 12 with a cup washer 22.

Reference numeral 23 denotes a reinforcing plate, one side of which is inserted into the boss 12b on the upper side of the decorative frame 12 described above, and is attached to the cup washer 22.
The reinforcing frame 21 and the other side extend upward.

This extending portion 23' extends until it overlaps the reinforcing back plate 24 embedded in the heat insulating material 9.

On the other hand, during the molding process of the main door 6, the reinforcing back plate 24 is made by filling the area separated by the outer panel 7 and the decorative frame 12 with undiluted urethane foam (insulating material), and before it is completely foamed and solidified, the above foam is formed. It is placed on top, positioned using a foaming jig (not shown), and fixed as the heat insulating material solidifies.
Reinforce the main door 6.

A heat insulating material 25 made of polyethylene foam or the like is interposed between the back plate 24 and the reinforcing plate 23 and is bonded to either side by applying an adhesive to at least one surface.

The reason why the reinforcing plate 23 is extended 23' and the heat insulating material 25 is interposed between it and the reinforcing back plate 24 is that the reinforcing back plate 24 can only be installed up to the upper end of the opening 11 of the main door 6. This caused a decrease in the strength of the main door 6.

However, due to the reinforcing plate 23, the reinforcing back plate 24 and the reinforcing frame 21
The strength can be maintained by bridging the reinforcing back plate 24 and the reinforcing plate 23, and since there is a heat insulating material 25 between the reinforcing back plate 24 and the reinforcing plate 23, there is no heat conduction from the reinforcing back plate.
2 is not cooled, and dew on the periphery of the opening can be prevented.

As is clear from the above description, the refrigerator of the present invention has a reinforcing plate that bridges the reinforcing frame of the main door opening and the reinforcing back plate of the main door, and also has insulation between the reinforcing back plate and the reinforcing plate. Since the opening is made of a material, it is possible to prevent the main door from twisting, etc., and it also has the effect of preventing dew from forming on the periphery of the opening.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a refrigerator according to an embodiment of the present invention, Fig. 2 is a partial sectional view taken along line n-n' in Fig. 1, Fig. 3 is a partial sectional view taken along line m-m' in Fig. The reinforcing plate installation diagram is shown. 6...Main door, 7...Outer panel, butt...
・Inner plate, 11... Outlet, 12... Decorative frame, 14... Auxiliary door, 21... Reinforcement frame, 23... - Reinforcement plate, 24...Reinforcement back plate, 25...Insulation material.

Claims (1)

[Scope of utility model registration request] The main door consists of an outer panel, an inner panel, and a foam insulation material filled between these panels, and is attached to the front opening of the main unit so that it can be opened and closed, and an auxiliary door that can be opened and closed at the outlet drilled in the main door. The outlet is formed by a decorative frame and a reinforcing frame fixed to the outer panel on one side to reinforce the decorative frame, and the reinforcing frame is embedded in the reinforcing frame and the heat insulating material of the main door. A refrigerator in which a reinforcing plate is used as a bridge between the two and a reinforcing back plate, and a heat insulating material such as polyethylene foam is interposed between the reinforcing back plate and the reinforcing plate.