KR101250280B1 - Refrigerator - Google Patents

Abstract

An object of the present invention is to provide a refrigerator in which opening and closing of a door can be smoothly performed for a long time.
In order to achieve the above object, in the refrigerator having a refrigerator body having a storage chamber having an opening, a door for opening and closing the opening of the refrigerator body, and a convex portion provided in the vertical direction on both the left and right sides of the storage chamber side of the door, The convex portion is provided so that the distance between the convex portion and the side wall of the storage chamber is larger than the lower side, so that the convex portion does not contact the side wall of the storage chamber in a state displaced by the door sag.

Description

Refrigerator {REFRIGERATOR}

The present invention relates to a refrigerator.

As a prior art in the technical field, there is Japanese Patent Laid-Open No. 2000-111243 (Patent Document 1). Patent Document 1 discloses an outer case constituting a casing, an inner case molded of resin and disposed inside the outer case, a heat insulating material foam-filled in the space between the outer case and the inner case, and the inner case. A refrigerator comprising a storage compartment having a rotatable door, a storage compartment having a drawer door disposed below the storage compartment, and a partition member for partitioning the storage compartments, wherein the refrigerator is between the inner case and the outer case, It is described that a reinforcing member is attached to the inner case on the front side and provided with a reinforcing member extending upward from the partition member from a position lower than the lowermost part of the inner case.

Japanese Patent Application Laid-Open No. 2000-111243

However, if the door is used for a long time, the door may be deformed due to abrasion of the pin accommodation portion accommodating the hinge pin or creep of the door itself, which may cause the door to sag. That is, the door may touch the wall surface of the storage chamber due to the assembly deviation of the refrigerator, the molding deviation of the parts, or the like, and the door may not be opened or closed smoothly.

Therefore, an object of the present invention is to provide a refrigerator in which opening and closing of a door is smoothly performed for a long time.

In order to solve the above problems, for example, the configuration described in claims is adopted. Although this application includes a plurality of means for solving the above problems, for example, a refrigerator body having a storage compartment having an opening, a door for opening and closing an opening of the refrigerator body, and both left and right sides on the storage compartment side of the door. A refrigerator having convex portions provided in an up-down direction of the convex portion, wherein the convex portion is provided such that a distance between the convex portion and a side wall of the storage chamber is larger than a lower side, and the convex portion is displaced by the door sag. It is characterized in that it is not in contact with the side wall of the.

According to this invention, the refrigerator which can open and close a door smoothly for a long time can be provided.

1 is a front view of a refrigerator according to an embodiment of the present invention.
2 is a cross-sectional view taken along line AA of the refrigerator of FIG. 1.
3 is a BB cross-sectional view of the refrigerator of FIG.
Fig. 4 is a view showing the positional relationship between the inner case opening and the door inner plate when the door is closed, showing the state before the door sag, (a) is a front view, and (b) is (a). CC section of the.
Fig. 5 is a view showing the positional relationship between the inner case opening and the door inner plate when the door is closed, and showing the state after the door sag.
6 is a view showing test results assuming that the refrigerator is used for 10 years.
Fig. 7 is a view showing the positional relationship between the inner case opening and the door inner plate when the door is closed, showing the state before and after the door sag, (a) is a front view, and (b) is a sectional view BB of (a). .

EMBODIMENT OF THE INVENTION Hereinafter, one Example of this invention is described with reference to drawings.

Example 1

1 is a front view of a refrigerator provided with the present invention. 2 is a cross-sectional view A-A of the refrigerator of FIG. 1. 3 is a cross-sectional view B-B of the refrigerator of FIG. 1.

Reference numeral 1 is a refrigerator body. This refrigerator main body 1 has the refrigerator compartment 2, the freezer compartment 3 (ice-making chamber, 1st freezer compartment, 2nd freezer compartment), the vegetable compartment 4, etc. from the inside. Reference numeral 5 is a refrigerator compartment door. Reference numeral 6 denotes a freezer compartment door (ice-making compartment door 6a, first freezer compartment door 6c, second freezer compartment door 6c). Reference numeral 7 is a vegetable compartment door.

Reference numeral 8 denotes a cooler provided in the cooler chamber 9 and reference numeral 10 denotes a compressor. Although not shown in the drawing, a condenser, a capillary tube, a cooler 8, and the like are connected by a refrigerant pipe to form a refrigeration cycle. .

On the other hand, in recent refrigerators, the heat dissipation pipe is attached to the inner side (foam insulation side) of the side plate and the back plate constituting the outside of the refrigerator main body 1 without a condenser in particular, so that the condenser is replaced. have.

Reference numeral 11 is a refrigerator fan, forcibly circulating the cold air cooled by the cooler 8 to the refrigerating chamber 2, the freezing chamber 3, the vegetable chamber (4). In addition, each storage chamber is cooled to a set temperature according to a damper for controlling the amount of cold air, a temperature controller, and the like.

One side of the refrigerating compartment door 5 is pivotally supported by the upper hinge pin 13 and the lower hinge pin 14 by the refrigerator casing 12, and rotates by operating the handle 15 ( Open and close).

Reference numeral 16 denotes an inner case constituting the refrigerator casing 12 along the outer case 17, the foamed heat insulating material 18, and the like. The inner case 16 constitutes the wall surface of the refrigerating chamber 2 described above.

Reference numeral 19 is a door inner plate constituting a part of the refrigerating compartment door 5. The door inner plate 19 has a door storage container 20 capable of storing a stored object such as a bottle or a barrel. As for the door storage container 20, the pocket member 21 is suspended in the convex part 22 and the shelf part 23 which were formed integrally with the door inner board 19 in the both sides of the door inner board 19, as shown in the figure. This is the configuration.

And as shown in FIG. 3, the door storage container 20 enters into the refrigerator compartment 2 side about 150 mm-200 mm at the time of door closing.

That is, the convex part 22 of the door inner board 19 and the edge of the inner case 16 side (side wall of a storage chamber) are superposed | polymerized with the clearance gap 24 (throat size). In the design of the refrigerator, the setting of this gap 24 is very important. For this reason, the clearance gap 24 is a narrow space and suppresses the exchange of the heat | fever of the cold air in the refrigerating chamber 2, and the outside air. The gap 24 (throat size) in which the convex portion 22 and the inner case 16 sidewall of the door inner plate 19 are polymerized is set to 6.0 mm to 7.0 mm. This is set such that the distance between the inner case 16 side wall and the convex portion 22 is smaller than the size in consideration of the minimum allowable value (3.5 mm) of the gap 24 in the state displaced by the door sag.

In addition, in the present embodiment, the gap 24 is narrowed to 6.0 mm to 7.0 mm instead of 9.0 mm. By doing in this way, the effect of suppressing the movement of gas inside and outside the storage chamber is further improved, and the width of the door storage container 20 is enlarged by narrowing the gap 24.

On the other hand, the thickness W1 dimension of the convex part 22 is made about 15 mm. This thickness dimension of 15 mm is a dimension required at the time of integral molding of the door inner plate in order to suppress the movement of the gas in the gap 24 described above.

Next, with reference to FIG. 4, FIG. 5, and FIG. 6, the thin shape provided in the convex part 22 is demonstrated.

In FIG. 6, the line a is the conventional refrigerator before test, and has shown the dimension between the door inner-plate convex part and the inner case side wall.

On the other hand, in the conventional refrigerator, the dimension between side walls was 9 mm, and the height dimension of the refrigerating chamber door was 800 mm.

Put the load (beer bottle, canned food, PET bottle, etc.) on the inside of the refrigerator (refrigeration chamber, freezer compartment, vegetable compartment, etc.) and the refrigerating compartment door side (door storage container), and put the load (beer bottle, canned food, PET bottle, etc.) into the refrigerator compartment to fix the refrigerator compartment door. The test which opened and closed the door was performed 100,000-200,000 times by the method of 11.1.1 of JIS C 9801.

As a result, the refrigerating chamber door which was attached horizontally before the test was displaced from the state of line a to the state of line b. That is, the refrigerator door went down 4 mm (see FIG. 7), and inclined by 0.38 degrees. This displacement is caused by wear of the hinge pin accommodation portion, deformation of the door, and the like.

In addition, the dimension between the door inner-plate convex part and the inner case side wall is reduced by 5.5 mm, and 9.0 mm is 3.5 mm (refer FIG. 6). This dimension of 3.5 mm is a dimension which should ensure the minimum while ensuring smooth opening and closing of the refrigerating chamber door. That is, it becomes the minimum value of a design allowable dimension. In other words, when the refrigerating compartment door 5 is lowered by 4.0 mm, the dimension between the door inner-plate convex part and the inner case side wall is reduced by 5.5 mm.

Therefore, in the present embodiment, as shown in Figs. 4 and 5, the convex portion 22 toward the side of the convex portion 22 approaching the inner case side wall is formed into a thin shape 23 due to the deflection of the door. That is, the upper part of the convex part 22 is set to the shape (inclined surface) except an oblique part. Here, the inclined surface of the point P1 (H1 dimension about 300 mm to 400 mm) and the convex portion 22 corresponding to about 1/2 to 1/3 of the H dimension (about 800 mm) of the convex portion 22. It forms so that point P2 (W2 and 3.0 mm-7.0 mm) corresponded to 1/2-2/3 of thickness dimension W1 (W1 dimension 15mm). For example, when the W1 dimension is 15 mm, the W2 dimension is 3.0 mm to 5.0 mm, and the convex portion is made thin.

Here, the point P1 is further demonstrated by FIG. In FIG. 6, the conventional refrigerator compartment door is inclined 0.38 degrees like the line b, and is 4.0 mm lowered. When the height of the convex part 22 is 800 mm, this 4.0 mm displaces about 5.5 mm at the tip of the convex part 22 in the direction of reducing the dimension between the door inner plate convex part and the inner case side wall. it means.

Accordingly, in the conventional refrigerator compartment door, the dimension between the door inner plate convex portion and the inner case side wall at the time of horizontal (before the test) needed to be set to 9.0 mm.

Therefore, by reducing the dimension between the convex part 22 and the inner case side wall, the energy saving effect can be improved and the size of the door storage container 20 can be enlarged. Therefore, the dimension between the conventional door inner plate convex portion and the inner case side wall is, for example, 9.0 mm to 6.0 mm, and the line c becomes thinner as the convex portion 22 is moved upward (Fig. 6). Set in advance. That is, the dimension between the convex part 22 and the inner case side wall is made thin so that an upper direction may become larger than a downward direction.

In addition, the point P1 is the intersection of this line c and the 6.0 mm dimension line previously. In this embodiment, the point P1 is set to the point corresponding to about 1/2-1/3 of the H dimension (FIG. 4) of the convex part 22. FIG.

As mentioned above, in the refrigerator compartment door 5 of the shape of the line c which made 6.0 mm the dimension between the convex part 22 and the side wall of the inner case 16, it displaces like line d after a door opening-and-closing test. In other words, before the door opening-and-closing test, the clearance gap 24 (throttle dimension) is reduced to 3.0 mm from the conventional 9.0 mm to the point P1 like the line c. From the point P1 to the point P2, the clearance gap 24 becomes the inclination of 6.0 mm-9.0 mm, and shrinks about 1.5 mm.

In addition, after the door opening and closing test, the point P1 (a) is reduced from about 1.75 mm by being 6.0 mm to 3.5 mm. It becomes 3.5 mm from upper point from the point P1 (a).

On the other hand, this is a state before and after the test, but in a practical use state, since the state gradually shifts from the state before the test toward the state after the test, the energy saving effect is sufficiently obtained.

By constituting the convex portion 22 as described above, the gap 24 up to the point P1 (330 mm) is significantly reduced than before, and the gap from the point P1 up to the point P2 between 330 mm and 800 mm upwards ( 24) is displaced along the slope from 6.0 mm to 9.0 mm. Thereby, the dimension between the convex part 22 and the side wall of the inner case 16 can ensure 3.5 mm which is the minimum of a design allowable dimension.

In the above description, the gap 24 has been described as 6.0 mm. For example, when the gap 24 is 7.0 mm, the line c becomes the line c (b) and the line d becomes the line d (b). The point P3 (a) and the point P2 become the same as the point P2 (b). Therefore, the gap 24 at this time becomes 4.7 mm rather than 3.5 mm rather than 3.5 mm. In addition, the dimension W2 of the convex part 22 also becomes small 3.0-5.0 mm mentioned above.

On the other hand, when the clearance gap 24 is set to 5.5 mm, since the clearance gap 24 becomes smaller than 3.5 mm, there exists a possibility that a smooth opening and closing of a door may not be possible.

In addition, in the said description, although the refrigerator compartment door 5 was demonstrated as being single, it can also be applied to the double-barrier type door provided with two left and right (left and right door type).

Since it has a structure as described above, the following effect is acquired.

That is, in the refrigerator which has the refrigerator main body provided with the storage compartment which has an opening, the door which opens and closes the opening of the said refrigerator main body, and the convex part provided in the up-down direction of the left and right sides of the said storage compartment side of the said door, The said convex part is said, The distance between the convex portion and the side wall of the storage chamber was set so as to be larger than the lower side, so that the convex portion did not contact the side wall of the storage chamber in a state displaced by the door sag.

Thereby, the clearance gap (throttle dimension) of the refrigerating chamber door which can be rotatably attached with a hinge etc. can be reduced, an energy saving effect can be achieved, and door opening and closing can be performed smoothly for a long time, and a convex part ( Since 22) is set thin, the door storage container 20 can be enlarged.

Moreover, it has an inclined surface from the upper side to the lower side of the said convex part. As a result, smooth opening and closing operations are possible without giving the user a sense of discomfort and on the refrigerator side even if the refrigerator compartment door is slightly inclined due to long-term use.

In addition, the viewpoint of the said inclined surface of the said convex part was made into 1/2-1/3 of the height of the said convex part from the lower end of the said door. This reduces the throat dimension of the refrigerating compartment door, thereby achieving an energy saving effect.

1: refrigerator body 2: refrigerating chamber
3: freezer 4: vegetable compartment
5: refrigerator door 6: freezer door
7: vegetable compartment door 12: refrigerator casing
13: upper hinge pin 14: lower hinge pin
16: inner case 17: outer case
18: foam insulation 19: door inner plate
20: door storage container 22: convex portion
24: gap (throat size)

Claims (3)

In the refrigerator having a refrigerator main body having a storage compartment having an opening, a door for opening and closing the opening of the refrigerator main body, and a convex portion provided in the vertical direction on both the left and right sides of the storage chamber side of the door,
The convex portion is provided so that the distance between the convex portion and the side wall of the storage compartment is larger than the lower side, so that the convex portion does not contact the side wall of the storage chamber in a state displaced by the door sag. . The method of claim 1,
A refrigerator having an inclined surface from above to below of the convex portion. The method of claim 2,
A refrigerator, characterized in that the starting point of the inclined surface of the convex portion is about 1/2 to 1/3 of the height of the convex portion from the lower end of the door.

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