JPH08145552A - Deep-freezer-refrigerator - Google Patents

Abstract

PURPOSE: To provide a deep-freezer-refrigerator in which a deformation of an outer box to be caused by shrinkage of foamed thermal insulation material associated with cooling operation is prevented. CONSTITUTION: Foamed thermal insulating material 4b is illed in a filling space S1 arranged between an inner box 2 and an outer box 1 to form a main body and an interior part of the main body is partitioned into a plurality of upper and lower storing chambers by a hollow partition part 3 which is integrally formed with the inner box 2, its front surface is closed and both right and left sides and a rear side of it are opened to be communicated with the filling space S1. The upper and lower surfaces of a thermal insulating member 5 inserted into the hollow part of the partition part 3 are formed with recesses 12 so as to increase adhering areas of the foam thermal insulating member 4a, the thermal insulating member 5 and the inner box 2. In addition, openings of right and left sides of the partition part 3 are closed by the closing portions 5a formed at both sides of the thermal insulating member 5 so as to divide the foamed thermal insulating member 4b filled between the outer box 1 and the inner box 2 and the foamed thermal insulating material 4a filled in the recess 12, thereby even if the foamed thermal insulating material 4a is shrinked, the outer box 1 is not deformed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freezer-refrigerator, and more particularly to a structure of a partition part which partitions a main body into upper and lower parts to form a freezer compartment, a refrigerating compartment and the like.

[0002]

2. Description of the Related Art In a conventional refrigerator-freezer, a freezing compartment, a refrigerating compartment, and a vegetable compartment are partitioned from the top by a partition section. In recent freezers and refrigerators, considering the frequency of use,
In some cases, the freezer compartment and the vegetable compartment are each partitioned.

By the way, such a partition portion is disclosed in, for example, Japanese Utility Model Publication No. 61-17343.
When forming the main body of the heat insulation structure, after being temporarily fixed to the inner box, the side surface is adhered by the foamed heat insulating material filled in the filling space provided between the inner box and the outer box. Some are attached and fixed to the inner box. However, when a separate partition is attached inside the main body as described above, there is a problem that sufficient strength cannot be ensured.

Therefore, conventionally, a hollow partition portion is integrally molded in the inner box, while a heat insulating member preformed by Styrofoam or the like is inserted into the hollow portion of the partition portion, and the partition portion is formed at the front end portion of the partition portion. Separately, a pre-partition member is fitted. The pre-partitioning member is for contacting a packing provided on the back surface of the door that opens and closes the front opening of the main body to seal the refrigerating chamber and the freezing chamber.

In this way, the inner box having the heat insulating member inside the partition and the front member at the front end is installed in the outer box, and then, in the filling space between the inner box and the outer box. When a foamed heat insulating material such as polyurethane foam is injected, this foamed polyurethane enters the filling space to bond and fix both the inner and outer boxes, and a heat insulating box having a front opening is formed.

Further, at this time, after the foamed polyurethane enters through the openings formed on the left and right sides and the rear part of the partition so as to communicate with the filling space, the foamed polyurethane is separated between the partition and the heat insulating member and the partition. The heat insulating member and the pre-partitioning member are bonded and fixed to the partitioning section by entering into the space between the pre-partitioning member and the foamed polyurethane.

[0007]

However, in such a conventional refrigerator-freezer, the insertion portion of the heat insulating member is
When it is flat, as shown in FIG. 7, the outer box 1 and the inner box 2
The left and right filling spaces (spaces corresponding to the left and right side walls of the refrigerator / freezer) S1 and the hollow space S2 of the partition 3 are in communication with each other over the entire length in the front-rear direction. When the foamed polyurethane 4 is filled in this state, the foamed polyurethane 4 in the filling space S1 and the foamed polyurethane 4 in the hollow portion S2 of the partition 3 to which the heat insulating member 5 is bonded are connected.

By the way, the foamed polyurethane 4 has the property of shrinking when cooled by the cooling operation of the refrigerator, and the shrinking width thereof is proportional to the extending length thereof. Therefore, when the filling space S1 and the hollow portion S2 of the partitioning portion 3 are communicated with each other in this manner, the extension length of the polyurethane foam present between the inner wall surfaces facing each other of the outer box 1 becomes long. Therefore, when the foamed polyurethane cools, the contraction width and the contraction force of the foamed polyurethane portion adhered to both inner wall surfaces of the outer box 1 increase, and the contraction force causes the outer box 1 to be recessed only in the portion corresponding to the partition part. There was a problem that it became unsightly.

Therefore, the present invention has been made in order to solve such a problem, and an object thereof is to provide a freezer-refrigerator capable of preventing the heat insulating box body, more specifically, the outer box from being dented. It is a thing.

[0010]

According to a first aspect of the present invention, there is provided a front opening formed by filling a pre-formed heat insulating member and a foamed heat insulating material in a filling space provided between the inner box and the outer box. In a refrigerating refrigerator having a heat-insulating structure main body having and a door that opens and closes the front opening, the main body is integrally formed with the inner box, the main body is partitioned into a plurality of storage chambers vertically, and the front surface is closed. A hollow partition part whose left and right sides and a rear part are opened so as to communicate with the filling space, a heat insulating member which is inserted into a hollow part of the partition part, and a front end part of the partition part, which is fitted to the back surface of the door. While having a pre-partitioning member in close contact with, the upper and lower surfaces of the heat insulating member, while forming a recess for filling the foamed heat insulating material between the partitioning portion,
On both sides of the heat insulating member, a closing portion that closes the openings on both the left and right sides of the partition portion to separate the foamed heat insulating material filled between the outer box and the foamed heat insulating material filled in the recess. Are formed.

According to a second aspect of the present invention, the heat insulating member is inserted so as to form an inlet of the foam heat insulating material filled in the hollow portion between the front surface of the partition portion and the closing portion. It is a thing.

[0012]

According to the first aspect of the present invention, the filling space provided between the inner box and the outer box is filled with the preformed heat insulating member and the foam heat insulating material to form the main body of the heat insulating structure having the front opening. The inside of the main body is integrally molded with the inner box, and the front surface is closed and the left and right sides and the rear portion are divided into upper and lower storage chambers by a hollow partition opening to communicate with the filling space. . Then, by fitting the front member of the partition to the front end portion of the partition portion, it is possible to make close contact with the back surface of the door. Further, by forming recesses in the upper and lower surfaces of the heat insulating member inserted into the hollow portion, the area of adhesion of the foamed heat insulating material to the heat insulating member and the inner box is increased. Further, by closing the openings on both the left and right sides of the partition with the closing portions formed on both sides of the heat insulating member, a foam heat insulating material filled between the outer box and the inner box and a foam heat insulating material filled in the recess are formed. Divide.

According to the second aspect of the present invention, a heat insulating member is inserted into the partition so as to form an inlet for the foam heat insulating material between the front surface of the partition and the closed portion, so that the foam heat insulation is provided from this inlet to the hollow portion. The material can be filled.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a body of a refrigerator-freezer according to an embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 7 indicate the same or corresponding portions.

In the figure, reference numeral 6 designates a heat insulating structure of a refrigerator-freezer having a front opening 6a formed by filling a stock solution of a heat insulating member and a foamed heat insulating material formed in advance between an inner box 2 and an outer box 1. It is a main body (hereinafter referred to as a main body), and inside the main body 6, a refrigerating room 7, a freezing room 8 and a vegetable room 9 which are storage rooms are partitioned from above by a partition section 3.

Further, 10 is a partition 3 as shown in FIG.
Is a front partition member fitted to the front end portion 3a of the front partition member 3, and the front partition member 10 forms a first gap G1 with the front surface 3b of the front partition portion 3 as shown in FIG. There is.

On the front surface 3b of the partition portion 3, as shown in the figure, a first gap G1 and a second gap G2 described later are provided.
A plurality of communication holes 11 that communicate with and are formed. The plurality of communication holes 11 allow the foamed polyurethane filled in the second gap G2 to flow into the first gap G1, and the foamed polyurethane makes the front end portion 3a of the partition 3 a heat insulating structure. At the same time, the pre-partition member 10 fitted to the front end of the partition part 3 and the polyurethane foam filled between the partition part 3 can firmly bond and fix both.

On the other hand, the heat insulating member 5 is inserted halfway into the hollow portion S2 of the partition 3 so as to form a second gap G2 between the front surface 3b of the partition 3 as shown in FIG. It has become. Here, by forming such a second gap G2, the foamed polyurethane filled in the filling space S1 can be caused to flow between the partition portion 3 and the heat insulating member 5 from the inlet described later, and the foamed polyurethane can be obtained. The partition 3 has a heat insulating structure, and the heat insulating member 5 has a partition 3
It can be attached to.

The upper and lower surfaces of the heat insulating member 5 are shown in FIG.
As shown in FIG. 3, the concave portion 12 is formed. By forming the concave portion 12 in this way, the bonding area of the foamed polyurethane with the heat insulating member 5 and the inner box 2 can be increased, and the heat insulating can be performed more reliably. The member 5 can be bonded to the partition 5.

By the way, on both sides of the heat insulating member 5, there are formed closing portions 5a for closing the openings formed on the left and right sides of the partition portion 3 as shown in FIG. By closing the openings on both the left and right sides of the partitioning part 3 by the above, the foamed polyurethane filled in the recess 12 of the heat insulating member 5 and the foamed polyurethane filled in the filling space S1 can be divided.

By separating the foamed polyurethane filled in the recess 12 of the heat insulating member 5 and the foamed polyurethane filled in the filling space S1, the shrinkage force of the foamed polyurethane filled in the partition 3 is directly removed. It is difficult to reach the inner wall of the box 1. Accordingly, even if the polyurethane foam cools and contracts, the contraction width can be made extremely small, so that it is possible to prevent the outer box 1 from being dented by the polyurethane foam of the partition portion. The foamed polyurethane filled in the second gap G2 adheres to both inner wall surfaces of the outer case 1 which face each other, but the contact area is very small compared to the extension length, so the outer case 1 is recessed. The contraction force is not so great.

By the way, as shown in FIG. 5, the heat insulating member 5 is formed so that a small inlet 12 of the foamed polyurethane filled in the hollow portion S2 is formed between the front surface 3b of the partition portion 3 and each closing portion 5a. The partition part 3 is inserted from the rear to the middle part thereof, and by forming the small inlet 12 in this way, the front side of the hollow part S2 can be filled with polyurethane foam.

Next, the manufacture of the main body of the heat insulating structure thus constructed will be described.

First, the heat insulating member 5 is inserted into the hollow portion S2 of the partition 3 integrally formed with the inner box 2 from the rear side so as to form the second gap G2 between the partition 3 and the front surface 3b. At the same time, the front end part 3a of the partition part 3 is formed so as to form the first gap G1 between the pre-partition member 10 and the front surface 3b of the partition part 3.
Fit in. Next, after the inner box 2 with the heat insulating member 5 and the pre-partitioning member 10 attached in this way is assembled into the outer box 1, the filling space S1 provided between the inner box 2 and the outer box 1 is filled. Fill with polyurethane foam.

When the polyurethane foam is filled in this way, the polyurethane foam flows into the filling space S1 and at the same time, the front surface 3 of the partition 3 is indicated by the arrow shown in FIG.
2b from the inlet 12 formed between the b and each closed portion 5a
The gap G2 also flows into the gap G2 and the foamed polyurethane adheres the heat insulating member 5 to the partition 3. Further, the foamed polyurethane filled in the second gap G2 flows into the first gap G1 through the plurality of communication holes 11 formed in the front surface 3b of the partition 3 and also into the first gap G1. It becomes evenly distributed.

By the way, the foamed polyurethane filled in the second gap G2 also flows into the recesses 12 formed in the upper and lower surfaces of the heat insulating member 5, as shown in FIG. As a result, the amount of the foamed polyurethane 4a flowing between the partition 3 and the heat insulating member 5 increases, and the adhesive area of the foamed polyurethane 4 with the heat insulating member 5 and the inner box 2 increases.
The heat insulating member 5 adheres to the partition 3 more firmly.

At this time, the polyurethane foam 4a filled in the recess 12 of the heat insulating member 5 by the closed portion 5a of the heat insulating member 5 and the filling space S corresponding to the left and right side wall portions of the main body 6.
Since the foamed polyurethane 4b filled in 1 is horizontally divided, even if the contracted force of the foamed polyurethane 4a in the recess 12 of the heat insulating member 5 is large, the contracted force is directly transmitted to the foamed polyurethane 4b in the filling space S1. Absent. Therefore, the side surface of the outer box 1 is not dented by the foamed polyurethane 4b in the filling space S1.

In this way, the heat insulating member 5 is formed by forming the closing portions 5a on both sides of the heat insulating member 5 inserted into the hollow portion S2 of each partition portion 5 to close the openings on both the left and right sides of the partition portion 5.
The foamed polyurethane 4a filled in the recess 12 and the foamed polyurethane 4b filled in the filling space S1 can be separated from each other, so that the left and right sidewalls of the main body 6 can be prevented from being dented due to the shrinkage of the polyurethane foam. .

[0030]

As described above, according to the invention of claim 1,
Since the foamed heat insulating material filled in the concave portion of the heat insulating member and the foamed polyurethane filled in the filling space can be divided by the closed portions formed on both sides of the heat insulating member, the foamed heat insulating material in the partitioning portion directly contracts due to shrinkage. It is possible to prevent the left and right side walls of the heat insulating box from being pulled and prevent the side wall of the heat insulating box from being dented.

Further, according to the second aspect of the present invention, the heat insulating member is inserted into the partition so as to form the inlet of the foamed heat insulating material between the front surface of the partition and the closed portion. The foamed heat insulating material can also be filled in the recesses formed on the front side and the upper and lower surfaces of the heat insulating member.

[Brief description of drawings]

FIG. 1 is a perspective view of a main body of a refrigerator-freezer according to an embodiment of the present invention.

FIG. 2 is an exploded view of a partition section of the main body.

FIG. 3 is a side sectional view of the partition section.

FIG. 4 is a front sectional view of the partition section.

FIG. 5 is a diagram showing a state in which polyurethane foam is filled inside the partition section.

FIG. 6 is a view showing a state in which foamed polyurethane is filled inside the partition section.

FIG. 7 is a view showing a state in which a polyurethane foam is filled inside a partition of a conventional refrigerator-freezer.

[Explanation of symbols]

 1 Outer Box 2 Inner Box 3 Partition Part 4 Foamed Polyurethane 5 Heat Insulating Member 5a Closing Part 10 Partition Before Member S1 Filling Space S2 Hollow Part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mamoru Satomi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kyoya Tateno 2-chome, Keihanhondori, Moriguchi-shi, Osaka 5-5 Sanyo Electric Co., Ltd. (72) Inventor Tatsuhiko Yamaguchi 2-5-5 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Inventor Junichi Todo Keihan Hondori, Moriguchi City, Osaka Prefecture 2-5-5 Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. A main body of a heat insulating structure having a front opening formed by filling a pre-formed heat insulating member and a foamed heat insulating material in a filling space provided between an inner box and an outer box, and the front opening. In a freezer-refrigerator having a door that opens and closes, the inner box is integrally formed, and the inside of the main body is partitioned into a plurality of storage chambers vertically, the front surface is closed, and both left and right sides and a rear portion communicate with the filling space. A hollow partition part opened so that a heat insulating member inserted into the hollow part of the partition part,
A partition member that is fitted to the front end portion of the partition portion and that is in close contact with the back surface of the door, and has a recess on the upper and lower surfaces of the heat insulating member that fills the foamed heat insulating material between the partition portion. On the other hand, on both sides of the heat insulating member, the foam heat insulating material which is filled between the outer box and the foam heat insulating material which closes the openings on both the left and right sides of the partition portion and the foam heat insulating material which is filled in the concave portion. A freezer-refrigerator, characterized in that a closed portion is formed to divide the and. 2. The heat insulating member is inserted so as to form an inlet of the foamed heat insulating material filled in the hollow portion between the front surface of the partition portion and the closing portion. The refrigerator-freezer described.