JPH09210541A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator which makes it possible to improve the cooling efficiency with energy conservation by effectively preventing the leakage of the heat of cold air from a refrigerator via a door packing. SOLUTION: A sealing member 32A made of a soft resin is further provided at the inside position of a door packing 8 in addition to the packing 8 provide at a door 9 for swinging the front opening of a storage warehouse body 2. When the member 32A closes the door 9, it is brought into contact with the end 6b of the front opening to press to deform it so that a plurality of fins 31a, 31b are strongly brought into contact with the inner wall 3c of the warehouse and the inner surface of the door 9 to sufficiently seal the gap 30 (channel) formed to an inner pocket 26 of the door, thereby effectively preventing the arrival of the cold air at the packing 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator of a type in which cold air is blown out from the back side of the inside of a refrigerator to cool the inside of the refrigerator. The present invention relates to a refrigerator which is suitably modified to prevent leakage through the back side door packing provided in the refrigerator.

[0002]

2. Description of the Related Art Refrigerators mainly use a cold air forced circulation type in which cold air that has exchanged heat with an evaporator is forcedly circulated by a cold air circulation fan to cool the air. Then, a method is generally adopted in which the cool air is blown out forward by a plurality of cool air outlets formed at appropriate intervals in the vertical direction on the back of the inside of the refrigerator.

FIG. 10 is a schematic structural diagram of a refrigerator 1 of such a cold air blowing system. The refrigerator 1 is equipped with a refrigerating device that is driven by electricity or gas as a driving energy source, and has a heat insulating structure. The inside of the storage main body 2 is divided into a refrigerating compartment 3, a freezing compartment 4 and a vegetable compartment 5 from above, and the front opening 6 of the refrigerating compartment 3 has a magnet 7 inside as shown in FIG. The door packing 8 is openable and closable by a heat-insulating door 9 provided on the entire circumference of the back surface, and the front openings of the freezer compartment 4 and the vegetable compartment 5 are the front walls of the drawer-type article storage cases 11 and 12, respectively. 11b, 12
It is blocked by b.

Further, these chambers 3, 4 and 5 are provided with vent holes 14a and 14b provided in the upper and lower partition walls 13a and 13b, respectively.
Also, the refrigerating compartment 3 and the vegetable compartment 5 are communicated with each other through an air passage 15 which connects the refrigerating compartment 3 and the vegetable compartment 5 so that the cool air can make one cycle. A cooling chamber 18, which is a cold air generating portion in which an evaporator 16 and a cold air circulation fan 17 are arranged, is provided in the inner part of the freezing chamber 4 in the middle, and a freezing chamber duct 19 provided in front of the cooling chamber 18 is provided. The cold air that has entered cools the blow-off freezing chamber 4 from a horizontally long outlet 21 provided in the duct 19, and a part of the cold air is formed in the deep inside of the cold storage chamber 3 from the ventilation port 14a. Enter the duct 22 and blow it forward from a plurality of horizontally long cool air outlets 23 vertically formed at appropriate intervals in the duct 22 to flow between the shelves 24 as indicated by an arrow to cool the refrigerating chamber 3, After passing through the vegetable compartment 5 through the ventilation passage 15 to the lowest vegetable compartment 5, the cold air returns to the cooling compartment 18 from the ventilation passage 14b as shown by an arrow in the figure, and again the freezing compartment 4 and the refrigerating compartment. 3 is sent and circulates. Reference numeral 25 denotes a compressor provided in the lower portion of the main body 2, which is connected to the evaporator, a condenser (not shown), and a pressure reducing device in an annular shape through a refrigerant pipe to form a refrigeration cycle (refrigeration device). The door 9
The inside of the door pocket 26 is formed on the back side of the door so as to divide and form several storage portions so that bottles and small food items can be stored.

Now, in the refrigerating compartment 3, the opening 6 on the front side of the refrigerator 9 has a door 9 provided with a door packing 8 on the entire rear surface thereof.
The cold air blown into the cold storage 3 (refrigerator) is effectively opened and closed by the inside of the cold storage in order to effectively prevent heat leakage between the cold storage and the outside and maintain high cooling performance. Cold air is blown outward from the cold air outlet 23 as if it were flowing strongly along the top surface 3a and the bottom surface 3b and the left and right side surfaces 3c, 3c (see FIG. 8) to form a wall of cold air.

When the cold air is blown out strongly in a laminar manner from the plurality of cold air outlets 23 provided at the back of the inside of the inside of the inside of the inside of the inside of the inside of the inside to the cold air, the cold air blows on the door 9. Although the peripheral area of the opening 6 is stronger than the central area of the opening 6, the cold air is prevented from leaking by the door packing 8, but the cold air does not leak to the door packing 8.
The door packing 8 is cooled by the cool air, and heat leakage from the upper and lower portions of the opening 6 and the lateral portions on both sides is increased.

In this case, in order to prevent the heat leak from the side of the cold air leaking from the top and bottom and from the side in the refrigerator, the conventional cross section of the refrigerator shown in FIG. 8 and the parts view of FIG. 9 are conventionally used. Installed inside the door packing 8 as shown,
Gap passage 3 leading to the door packing 8 when the door 9 is closed
0, and has a back fin 31a and a plurality of fins 31b extending from the back fin 31a integrally formed by extrusion molding of, for example, a soft resin that double-seals with the door packing 8. The seal member 32 is provided to prevent heat leak of cold air. Here, the gap passage 30 is formed such that when the door 9 is closed, one side wall 28 of the inner pocket 26 faces the side surface 3c of the storage main body 2 and is located therebetween.

[0008]

However, in the conventional seal member 32 provided in addition to the door packing 8, the tip of one fin 31b of the seal member 32 comes into close contact with the inner surface of the door 9, as can be seen from FIG. However, the other back fin 31a
Since there is a gap t without hitting the inner surface (side surface 3c) of the storage main body 2, even if it is a double seal, its sealing effect was not sufficient. Therefore, the heat loss caused by the heat of the cold air leaking from the side to the outside of the refrigerator causes an energy loss in that the amount of electricity and gas used is uneconomically increased. In addition, such heat loss is, for example, small when viewed from the entire refrigerator, but since it is widely used (the number of operating units), it becomes enormous in society, and it is necessary to solve the problem of preventing effective use of limited resources. become.

The present invention has been made in view of the above-mentioned points. Among the cool air that is blown out to the front side with the door and leaks heat through the door packing, the heat leak of the cool air particularly from the side of the inside of the refrigerator is performed. It is an object of the present invention to provide a refrigerator having a means capable of effectively blocking it to reduce heat loss, save energy (power saving), and improve cooling efficiency.

[0010]

In order to achieve the above-mentioned object, the invention of claim 1 is a storage main body in which a front side of a heat insulating structure having a refrigerating device is opened, and a rear side of the main body which opens and closes the opening. A heat-insulating door provided with a door packing is provided all around, and the cold air blown and circulated from the inside of the refrigerator leaks out from above, below, and on both sides of the opening at the door packing. In a refrigerator having a structure in which the above-mentioned structure is prevented, the door is strongly adhered to the opening / closing end side of the door so as to be pressed and deformed by abutting against the opening end when the door is closed to close the gap with the opening end. A soft seal member is vertically provided at an inner position of the door packing.

According to a second aspect of the present invention, a storage main body having an opening on the front surface of a heat insulating structure in which a refrigerating device is mounted, and an opening for opening and closing the opening of the main body and an inner pocket for accommodating food are formed on the back side of the storage main body. And with a door made of heat insulation that attaches the door packing all around the outside of its inner pocket,
In the refrigerator having a structure in which the cold air blown and circulated from the inside of the refrigerator is prevented from leaking from the upper and lower sides or the right and left sides of the opening by the door packing, at least the outer side of the opening / closing end side of the inner pocket. A soft seal member that is pressed against the wall surface by the contact with the opening end when the door is closed and closes the gap formed between the outer wall surface and the inner wall surface so as to communicate with the door packing. Is attached.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. It should be noted that the same or equivalent components as those of the conventional device are designated by the same reference numerals.

First, the first invention is a conventional seal member 32.
Similar to the above, it is made by extruding a soft resin or the like, and in the normal state when the door packing 8 is attached (when the door 9 is open), the fins 31b are protruded as shown in FIG. The seal member 32A has a structure in which 31a has a taut and straight surface.

And this sealing member 32A according to the present invention
Is the open end 6b of the storage body 2 when the door 9 is closed.
Then, the back fin 31a is forcibly crushed and deformed into a shape bent inward as shown in FIG. As a result, the sealing member 32A made of a soft material has an elastic force so as to restore the original shape, and the back fin 31a is strongly pressed against the opening end 6b to be in close contact with it. The tip of each fin 31b of the seal member 32A is also in strong pressure contact with the inner surface.

As a result, when the door 9 is closed, the gap portion 30 formed between the inside pocket 26 of the door 9 and the inside pocket 26 is completely closed by the sealing member 32A, and the sealing degree is strengthened. The heat can be sufficiently prevented from leaking out of the refrigerator, and the heat leak can be significantly reduced.

As described above, the seal member 32A of the present invention is provided with a plurality of fins 31a and 31b integrally provided therein.
However, when the door 8 is closed, it is deformed by coming into contact with the end of the main body and strongly adhering to both the door 9 and the inside opening 6 of the main body. It is possible to easily obtain a higher heat-sealing performance, achieve a sealing structure that does not have a particularly complicated structure as compared with a conventional product, and does not increase the cost.

The means for preventing heat leakage of cold air according to the second invention described below is shown in FIGS. 4 to 7, and in this embodiment, it is different from the conventional seal member 32. In addition, a second seal member 40 that closes the gap 30 when the door is closed is provided.

That is, as shown in FIG. 5, the sealing member 40 is made of a soft material such as a soft resin, and has a semi-arcuate shape formed by the extrusion molding.
It is. Then, the mounting surface 41 of the sealing member 40 is mounted and fixed to the outer surface of one outer wall 28 of the inner pocket 26 of the door by means of a screw 42 or an adhesive as shown in FIG.

Also in this case, in the normal state (when the door is open), the sealing member 40 has an arcuate surface 40a stretched in a completely circular shape as shown in FIG. When closed, it hits the inner surface (side surface 3c) of the storage body 2 and is pressed to be deformed into a distorted arc surface 40a as shown in FIG. As a result, the seal member 40, which is made of a soft material, has an elastic force so as to restore the original circular natural shape, and the degree of pressure contact with the inner surface 3c of the storage is increased.
The gap 30 is more than fully blocked and the degree of sealing is very strong.

In this way, the seal member 40 sufficiently blocks the cool air that blows out forward with the door 9 through the gap 30 and reaches the door packing 8, so that the heat of the cool air is kept inside the refrigerator. Almost no leakage from the side, wasteful energy consumption is reduced, and the refrigerator can efficiently cool the inside of the refrigerator.

In FIG. 7, the sealing member 40 is installed in the door 9
A pattern is shown when it is attached to all the outer peripheral side walls of the inner pocket 26 of the inside, and if it is provided on the entire periphery like this, it escapes from the upper, lower, left and right lateral directions in the refrigerator and through the entire opening 6. The heat of cold air can be totally blocked, and the heat leak blocking effect can be further enhanced.

[0022]

As described above, according to the invention of claim 1,
By providing a seal member that hits the main body of the storage when the door is closed and deforms from the normal shape to increase the degree of adhesion, close to the inside of the door packing, a better heat sealing effect than the conventional device can be easily achieved. Therefore, it is possible to prevent the heat loss of cold air and contribute to energy saving.

According to the second aspect of the present invention, when the door having the inner pocket on the back side is closed, a seal member is attached to the outer wall of the inner pocket so as to hit the storage body side and be crushed from the arc shape in the normal state. By doing so, the gap path created between the inner pocket and the inside surface of the refrigerator can be completely sealed, and cold air will not reach the door packing. It can be effectively blocked.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view of essential parts of a refrigerator when a door is closed, showing a heat leak prevention structure for cold air according to a first aspect of the present invention.

FIG. 2 is a component perspective view of a seal member which is a main component of the cold air heat leak prevention structure.

FIG. 3 is a plan sectional view of a main part of the refrigerator showing a state of the seal member in a normal state (when the door is open).

FIG. 4 is a plan cross-sectional view of essential parts of the refrigerator when the door is closed, showing the structure for preventing heat leakage of cold air according to the second invention.

FIG. 5 is a component perspective view of an arc-shaped seal member that is a main component of the heat leak prevention structure for cold air according to the second aspect of the present invention.

FIG. 6 is a plan cross-sectional view of a main part of the refrigerator showing a state of the seal member in a normal state (when the door is open).

FIG. 7 is a perspective view when the door of the refrigerator is opened, showing a state in which the seal member having the arc shape is mounted on the entire circumference of the inner pocket of the door.

FIG. 8 is a cross-sectional plan view of the essential parts of the refrigerator when the door is closed, showing a conventional structure for preventing heat leakage of cold air.

FIG. 9 is a component perspective view of a conventional seal member that is a main component of the cold air heat leak prevention structure.

FIG. 10 is a schematic vertical sectional side view of the refrigerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 3 Storage room 3c Inner side surface 6 Front opening 8 Door packing 9 Door 26 Inner pocket 28 Outer wall of inner pocket 30 Gap passage 32, 40 Seal member

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hitoshi Aoki 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. A storage main body having a front surface of a heat insulation structure in which a refrigerating device is mounted is opened, and a heat-insulating door which is opened and closed on the main body and is provided with a door packing all around the back surface. In the refrigerator having the structure in which the door packing prevents the cool air blown and circulated from the inside of the refrigerator from leaking from the upper, lower, left, and right sides of the opening, on the open / close end side of the door, A soft seal member that is pressed and deformed by abutting against the opening end when the door is closed and strongly adheres so as to close the gap between the opening end is provided vertically in the inner position of the door packing. Refrigerator characterized by having. 2. A storage body having an opening on the front surface of a heat insulating structure for mounting a refrigerating device, an opening and closing of the opening of the main body, and an inner pocket for storing food is formed on the back side of the storage body so as to project outside the inner pocket. Insulated doors are attached to the entire circumference to prevent cold air that circulates from the inside of the refrigerator from circulating from the inside and outside of the opening. In the refrigerator having the structure described above, at least the outer wall surface on the opening / closing end side of the inner pocket is pressed and deformed by the contact with the opening end portion when the door is closed, and is between the outer wall surface and the inner wall surface of the refrigerator. A refrigerator equipped with a soft seal member for closing a gap formed so as to communicate with the door packing.