JPS5856540Y2 - refrigerator - Google Patents

Description

[Detailed description of the invention] This invention uses a cold air branching case that disperses the cold air sucked into the insulating wall between the inner box and the outer box, which is located behind the partition that partitions the refrigerator compartment above and the freezer compartment below. In a refrigerator that has a drainage channel provided at the lower part of the cold air branch case and approximately in the center thereof, when water droplets from the inner wall of the cold air branch case enter the area around the drain channel, the drain channel freezes and the drainage function is impaired. In order to prevent this, a cap-shaped rib is provided on the cold air branch gas above the drainage channel and on the inner box that descends away from the drainage channel. The present invention relates to a refrigerator having a structure to be introduced into a refrigerator.

In conventional refrigerators of this type, when the door is opened or closed, warm air from the outside passes through the interior of the partition, and a small amount of it is attached to the inner wall of the cold air branch case and the cold air passage.

Also, a small amount of frost is separated from the evaporator by the suction of the fan and expands inside the cold air branch case.

The water droplets and frost that enter the cold air branch case and adhere to it in this way drip downward as the temperature rises during defrosting and collect on the bottom of the cold air branch case.When cooling operation starts, the water droplets freeze and further The water gradually sublimates, but when the water drops, they enter the insulation wall from the contact surface between the cold air branch case and the inner box, and when these water droplets reach the area around the drainage channel directly under the cold air branch case, they freeze in that area. , the capacity of the specified drainage channel antifreeze heater is insufficient, leading to the inability to drain water due to the drainage channel freezing.

For this reason, water droplets from the inner wall of the cold air branch case must not be allowed to enter the vicinity of the drainage channel.

For this purpose, it is necessary to apply adhesive or the like between the cold air branch case above the drainage channel and the inner box to form a complete seal.
In terms of workability, it was extremely time-consuming.

This invention was made to improve the above-mentioned drawbacks, and the drainage channel is placed at a higher position than the bottom of the outlet, and the cold air branch case above the drainage channel has a shade-shaped rib that extends to the back of the inner box and faces toward the outlet. In addition to tilting down, ribs are provided on the back of the inner box that overlap with the cap-shaped ribs.By overlapping each other, water droplets that fall from inside the cold air branching case are kept away from the drainage channel, which eliminates the need for adhesive application and other work. To provide a refrigerator having a cold air branching case which is highly effective.

An embodiment of the present invention will be described below. Reference numeral 1 denotes an outer box of the refrigerator, 2 an inner box of the refrigerator, and 3 and 4 doors.

The inner box 2 is divided into a refrigerator compartment 5 and a freezer compartment 6.

7 is a partition, and an evaporator 8 is installed inside.

There is a cold air branch case 9 between the back 2' of the inner box and the back 1' of the outer box.
The cool air inside the partition is drawn into the cold air branch case by the fan 10, and is further discharged to the required outlet ports 11, 12.

Note that 13 is a return air suction port for the refrigerator compartment, and 14 is a return air suction port for the freezer compartment.

Reference numeral 15 denotes a fan motor, the main body of which is fixed to the rear surface 1' of the outer case, and the rotating shaft of the fan motor passes through the cold air branch case and has a fan fixed at its tip.

Reference numeral 16 denotes a mouth tongue attached to the back surface 2' of the inner box with a certain gap provided around the outer periphery of the fan.

A drain pipe 17 constitutes a drainage channel, and defrost water from the evaporator is led to the outside through the drain pipe 17.

In general, if the drainage channel is provided at the center of the partition 7 in the horizontal direction, the slope in the horizontal direction of the partition through which the defrosting water flows can be set larger than if it is provided at one end.

For this reason, the position of the drainage channel in the left-right direction is located at the center of the partition, that is, approximately at the center of the cold air branch case.

Reference numeral 18 denotes a screw for fixing the cold air branch case to the inner box rear surface 2'.

Reference numeral 9a denotes a cutout portion for penetrating a drainage channel provided in the cold air branching case 9, and 9b indicates left and right freezer compartment discharge ports, with the bottom surface 9C of the discharge ports located below the drainage channel.

Reference numeral 19 denotes a discharge hole corresponding to the freezer compartment discharge port 9b, which is bored on the back surface of the inner box.

When the door is opened and closed, warm air from outside the refrigerator is sucked into the suction port 13.
14, a small amount of frost is separated from the evaporator and enters the cold air branch case when it reaches the inner surface of the cold air branch case or by suction by the fan, and drips downward during defrosting.

In order to prevent the water droplets from flowing into the vicinity of the drainage channel in the heat insulating wall, a cap-shaped rib 9d is provided above the drainage channel to protrude from the cold air branch case.

It is assumed that the cap-like rib 9d slopes downward toward the left and right discharge ports.

Furthermore, corresponding to the cap-shaped rib 9d, the back of the inner box is provided with the cap-shaped rib 9.
A rib 20 that descends in the same way as the main body is provided.

The rib 20 may be a convex rib such as 20' provided so that the tip of the cap-shaped rib 9d fits inside.

Also, instead of the inner box constriction part, a soft foam body 21 that seals water droplets may be used.

With such a structure, water droplets dripping from parts ■ and ■ above the drainage path inside the cold air branch case are directed down the slope by the cap-shaped ribs 9d that protrude from the cold air branch case and the ribs 20 on the back of the inner box above the drainage path. It moves away from the drainage channel and falls to the bottom of the outlet.

In particular, by overlapping the cap-like ribs 9d and the ribs 20 on the back surface of the inner box, water droplets are held in place as they go down the joint surface and rise and fall on the discharge outlet bottom surface 6.

In addition, an insert flange 9 is installed at the bottom surface 9C of the discharge port so that the water droplets that drip down will definitely enter the freezing chamber 6 and be sublimated in the freezing chamber.
A shape such as e may be used.

With the cold air branch case structure as described above, it is possible to provide a refrigerator having a simple structure and an inexpensive cold air branch case without requiring any adhesive or the like for sealing above the drainage channel.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the refrigerator adopting the present invention, Figure 2 is an enlarged view of the main parts of the inner box of the present invention, Figure 3 is a perspective view of the cold air branch case, and Figure 4 is a perspective view of the cold air branch case.
The figure is an enlarged view of the ■ part, and Figures 5 and 6 are different structural views of the enlarged view of the ◎ part. 7...Inner partition, 9...Cold air branch case, 9b...Discharge port, 9C...Discharge port bottom, 9d...Shade shaped rib, 17...drain pipe, 20...rib.

Claims (1)

[Scope of utility model registration request] 1. A cold air branching case is provided to disperse the cold air sucked into the insulated walls of the inner box and outer box, which are located behind the partition that partitions the refrigerator compartment above and the freezing compartment below. The penetration part of the provided drainage channel is provided at a higher position than the bottom surface of the cold air outlet, and a cap-shaped rib that slopes down from above the penetration part toward the cold air outlet is protruded by the cold air branch case, and corresponds to the shape of the tip of the rib. A refrigerator characterized in that ribs provided on the back of the inner box that slope down are arranged to overlap each other. 2. Utility model registration claim 1, characterized in that the cap-shaped ribs provided on the left and right sides of the cold air branch case that slope down toward the cold air discharge ports and the knobs provided on the back of the inner box are arranged to overlap. Refrigerator as described in section.