JP2783096B2 - Insulated box for refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating box for a refrigerator in which a foam insulating material such as rigid urethane foam is filled and foamed between an inner box and an outer box.

[0002]

2. Description of the Related Art FIG . 13 and FIG.
FIGS. 7A and 7B are a perspective view and a cross-sectional view of a conventional refrigerator shown in Japanese Patent No. 7582 without a door, in which (11) is a multi-door refrigerator main body, (11a) is an outer box thereof, and (12). Is a single gutter-shaped vertical front frame that defines the front opening inside the warehouse to the left and right,
(13) is, for example, a gutter-shaped upper horizontal partitioning front frame provided in front of a heat insulating wall (14) for partitioning a freezing compartment and a refrigerator compartment, and an inner box (15).
At the front opening. (16) is an intermediate horizontal partition front frame which creates a front opening of the refrigerator compartment up and down, (17) is a single front plate fitted to the front of the vertical partition front frame (12), (18) is an upper portion A front plate fitted to the front of the front horizontal partition frame (13), (19) is a front plate fitted to the front of the intermediate horizontal partition front frame (16), and (20) is a left and right section of the freezer compartment. The vertical partition wall to be formed, (21) is a common vertical partition wall that divides the refrigerator compartment left and right, and (22) and (23) are trays that partition the refrigerator compartment up and down. Further, (24) in FIG. 14 is a heat radiation pipe passed through a recess provided in the front plate (17) of the vertical partition front frame, and (25) is arranged in each horizontal partition front frame (13) (16) and It is a molded heat insulating member.
(29) is a sticker attached to the back of the upper horizontal partition front frame (13).

Next, the operation will be described. Insulation material on the front of the upper horizontal partition front frame (13) to ensure heat insulation of the upper and lower two chambers
(25), and the upper horizontal partition front frame (13) and the insulating wall for partition
When warm and humid air is sucked between the upper and lower chambers in the fitting with (14) and is sucked through the fitting gap, a seal (for preventing dew condensation, icing and cold air leaking in the gap) is provided. 29) is attached to the back of the upper horizontal partition front frame (13).

[0004]

Since the conventional refrigerator is constructed as described above, a clearance is generated in assembling between the heat insulating wall for partition and the front frame of the upper horizontal partition, and the front frame of the upper horizontal partition is formed. A separate sealing material must be used to prevent the movement of moisture between the upper and lower chambers separated by the above, a long sealing material must be attached, and heat insulation between the upper and lower chambers must be secured. A heat insulating member (25) formed of styrene or the like must be inserted separately into the front frame, and the number of parts,
There were problems such as an increase in man-hours and poor adhesion when the upper horizontal partition front frame was set in the inner box. In addition, the front frame of the partition inserts heat-insulating parts into it, sets it in the partition of the inner box, and fixes both ends with rivets, etc. There was also a problem of the body falling.

The present invention has been made in order to solve the above-mentioned problems, and has been made to reduce the cost of enclosing a heat insulating material in a front frame of a partition, to provide a sealing property between the front frame of a partition and a heat insulating wall for partition, It is an object of the present invention to provide a refrigerator heat insulating box capable of improving the adhesiveness between a partition front frame and an inner box and the rigidity of the refrigerator.

[0006]

According to the first aspect of the present invention, a heat insulating box for a refrigerator is formed by vacuum forming a synthetic resin plate and an outer box formed of a plate such as a sheet metal. An inner box having a partition section for dividing the chamber into a plurality of sections, and a partition front frame having a substantially U-shaped cross section provided on the front face of the partition section,
Inserting a partitioning heat insulating member inside the partitioning portion, and filling and foaming a foamed heat insulating material into a space formed by the outer box and the inner box, both ends of the front frame of the inner box before the partitioning. At the contact position, at the time of filling the foam insulating material between the outer box and the inner box, a foam insulating material entry hole for allowing the foam insulating material to enter a space formed by the front frame of the partition and the front surface of the partition. setting Keru together, the partition portion and the partition insulating member
Of the substantially central portion, in which residual air or the like at the time of foam insulation penetration into the partition front frame in providing the vent holes and grooves discharged into the inner box.

Claims2Insulated box for refrigerator according to the described invention
The body consists of an outer box composed of a plate such as a sheet metal, and a synthetic resin plate.
Formed by vacuum forming and dividing the storage room into multiple
An inner box having a cut portion, provided on a front portion of the partition portion
A partition front frame having a substantially U-shaped cross section;
Into the outer box and the inner box.
Smell of foam made by filling and foaming with foam insulation
And the inner box aboveThe position where it touches both ends of the above-mentioned pre-partitioning frame
When the foam insulation is filled between the outer and inner boxes,
Form the foam insulation with the front frame of the partition and the front of the partition.
If a foam insulation material penetration hole is made to penetrate the space formed
Together,The foam insulation is first released to the frame before the partition.
Inject the foam insulation material into the foam insulation material
At the position of the outer case back plate directly opposite the hole installation position,
Foam insulation fillerIt is provided.

Claims3Insulated box for refrigerator according to the described invention
The body consists of an outer box composed of a plate such as a sheet metal, and a synthetic resin plate.
Formed by vacuum forming and dividing the storage room into multiple
An inner box having a cut portion, provided on a front portion of the partition portion
A partition front frame having a substantially U-shaped cross section;
Into the outer box and the inner box.
Smell of foam made by filling and foaming with foam insulation
And the inner box aboveThe position where it touches both ends of the above-mentioned pre-partitioning frame
When the foam insulation is filled between the outer and inner boxes,
Form the foam insulation with the front frame of the partition and the front of the partition.
If a foam insulation material penetration hole is made to penetrate the space formed
Both, the front of the frame before the partitionAlmost in the centerEstablished in
When the foam insulation material enters the above-mentioned pre-partitioning frame by communicating with the recess.
With vent holes for exhausting residual air, etc.
is there.

[0009]

According to the first aspect of the present invention, the heat insulating box of the refrigerator is provided with a front frame of the partitioning front frame and a front portion of the inner box partitioning portion when the foaming heat insulating material is filled and foamed in the space formed by the outer box and the inner box. in also through the foam insulation penetration holes at both ends in a space formed is filled foam foam insulation from entering, residual air or the like in its is,
Inner box partition portion and the inserted partition insulating member therein
The gas is discharged through a gas vent hole and a groove provided substantially in the center . And the foam before insulation and the inner box
Are adhered .

In the heat insulating box of the refrigerator according to the second aspect of the present invention , the foamed heat insulating material enters the front frame of the outer box into the inner box.
Since the foamed heat insulating material is injected through the injection port provided at the position of the outer case back plate directly opposed to the hole installation position, the foamed heat insulating material is injected from the space formed by the outer case and the inner case through the foamed heat insulating material entry hole. The foamed heat insulating material is first injected into a space formed by the front frame of the partition and the front portion of the inner box partitioning portion, and the foamed heat insulating material easily enters this space .

According to the third aspect of the present invention, when the foamed heat insulating material enters a space formed by the front frame of the partition and the front portion of the inner box partition, the residual air and the like in the box are formed by: through the pores for venting, partition the front frame near the middle of the front
It is discharged to a recess provided in the center .

[0012]

[Embodiment 1] Hereinafter an embodiment of the present invention FIGS. 1-9 will be described. FIG. 1 is a perspective view showing this embodiment, and FIG.
A sectional view, FIG. 3 is a detailed perspective view of a main part in a state where a front cover and a partition front frame of a portion B in FIG. 1 are removed, FIG. 4 is a perspective view of the partition front frame, and FIG. 5 is viewed from D in FIG. perspective view of the partition front frame, FIG. 6 is a perspective view of the divider insulating member, C-C in FIG. 7 2
FIG. 8 is a cross-sectional view showing one process of filling and foaming the foamed heat insulating material , and FIG. 9 is a state in which this embodiment is laid down.
FIG .

In the figures, (1) is an outer box of a refrigerator made of sheet metal or the like, (1a) is a front flange portion of the outer box (1), (1b) is a back plate of the outer box (1), (1c) ) Is a hole provided in the front flange part (1a), (2) is a refrigerator inner box formed by vacuum forming a synthetic resin plate, (2a) is formed at the time of forming the inner box (2), Partitioning section divided into freezer compartment and refrigeration compartment, (2b) partitioning section
The front part of (2a), (2c) are the upper and lower steps of the partition (2a), (2d) are the steps provided on the left and right sides of the inner box (2) at the left and right ends of the partition (2a). , (2e) is a hole provided in the foam insulating material provided in the step (2d), (2f) is a hole provided substantially in the center of the front part (2b),
g) is a hole provided on the upper surface of the partition (2d), and (3) is a hole provided in the partition (2d).
(a) the partition heat insulation member inserted inside , (3a) the partition
A groove provided in the heat member (3) and connecting the holes (2f) and (2g) .

[0014] (4) is a front frame of the partition having a substantially U-shaped section provided on the front surface of the partition portion (2a), (4a) is a front portion of the front frame (4), (4b) is a front portion (4a ), Upper and lower steps at the left and right ends, (4c) is an upper and lower flat part whose tip is attached to the step (2c), and (4d) is a step (2
When the rib and the rib (4d) fitted to d) are brought into contact with the inner box (2), they conform to the front flange shape of the inner box (2) other than the stepped portion (2d).

[0015] (5) is an outer box (1) and an inner box (2), a foam heat insulating material made of a rigid polyurethane foam filled and foamed in a space to be formed, and (6) is in contact with the front part (4a). The front cover on the same plane as the front flange portion (1a) of the outer box (1), (7) is provided at the bottom of the outer box (1) and the front flange portion (1a) of the outer box (1)
(6a) is a hole provided on the left and right of the front cover (6), (8) is a screw, (1d) is foam insulation
This is the inlet for injecting (5).

Next, the assembling method will be described. Attach the front partition (4) to the partition (2a). That is, the tip of the flat portion (4c) is provided on the step (2c), and the rib (4d) is provided on the step (2d). Next, the back surface of the front cover (6) is brought into contact with the front portion (4a) of the partition front frame (4) and the left and right ends of the front cover (6) are inserted into the back surface of the front flange portion (1a),
Screw (8) into the holes (1c) and (6a) and fix it.

Next, as shown in FIG. 8 , the inlet of the back plate (1b)
(1d) foam insulation material (5) is injected, and in the process of filling and foaming, the foam insulation material (5) is a space formed by the front frame (4) and the front part (2b) from the hole (2e). Into the central part from both ends , filling and foaming, and the partition front frame (4) is adhered to the front part (2b) and the step part (2d) by the foam heat insulating material (5). The partition heat insulating member (3) molded with styrene etc. remains like the conventional example because it is necessary to arrange a cool air passage in it, and it is not possible to replace that part with hard urethane foam .

[0018] toward the center from both ends to the specifications outright front frame (4) in the
Pushed into the center by foam insulation material (5) that penetrates and foams
Mareta residual air or the like the front portion in its substantially central portion of (2b)
Flow from the provided hole (2f) to the hole (2g) through the groove (3a) in the partitioning heat insulating member (3) , and a urethane foam inner jig (not shown)
It is discharged outside through the inside. Therefore the frame before the partition (4)
The filling property of the foamed heat insulating material (5) therein is improved . In addition,
Even if foam insulation leaks from the pores in the foam,
Since it is stored in a difficult inner box,
In particular, there is an effect that it is not necessary .

As shown in FIGS. 8 and 9 , the inner box (2)
(4) Attachment position to the front frame of the partition (4)
(2e) An injection port (1d) for foam insulation (5) is provided at the position of the back plate (1b) directly opposite to the installation position, and the foam insulation (5) is first injected from the injection port (1d). To make foam insulation (5)
Was readily holes (2e) through the partition front frame (4) liable to foam filling to the inside.

Embodiment 2 FIG. 10 to 12 show another embodiment of the present invention, FIG. 10
The main part perspective view of this embodiment, FIG. 11 is a perspective view of the partition front frame, FIG 12 is a D-D sectional view of FIG. 10. In the figure, (26) is a heat dissipation pipe, (27) is a soft molded foam with aluminum foil, (28) is a push button switch, and (4e) is a front frame of the partition (4).
A concave portion for storing parts such as a push button switch (28) provided on the front surface of (4f) is a front surface of the front frame (4) and a concave portion (4e).
The pores provided above and below (4g) are recesses recessed around the pores (4f).

[0021] Because of the foam insulation material (5) that fills and foams in the front frame (4), residual air and the like in the front frame (4) cause pores (4).
f) As it comes out of the front frame (4) in front of the partition, foam insulation
(5) The filling foaming property is improved, and the pores (4
Even if the foam insulation (5) leaks from (f), it is stored in the recess (4g), so the space formed by the front frame (4) and the front cover (6) and the push button switch (28) are stored. Recess (4e)
Failure due to leakage of the foam insulation (5) into the interior can be prevented, and it is not necessary to correct the leakage.

[0022]

As described above, according to the first aspect of the present invention, the space between the outer box and the inner box is provided at the position where the inner box is in contact with both ends of the front partitioning frame having a substantially U-shaped cross section. When filling the foamed heat insulating material, the foamed heat insulating material is provided with a foamed heat insulating material intrusion hole for entering the space formed by the front frame of the partition and the front portion of the partition portion. The pre-partition frame is adhered to the pre-partition frame, eliminating the gap created by the assembly of the pre-partition frame and the partition part, improving the seal reliability, and eliminating the steps of attaching a sealing material and inserting a heat insulating member into the pre-partition frame. The cost is reduced, the rigidity of the front frame is improved by filling and foaming the foam insulation into the front frame, and the partition and the partition
Approximately at the center of the heat insulating member
Discharges residual air, etc. into the inner box when foam insulation enters the center
The gas vent hole and groove are provided so that the
Degassing is effectively performed, and foaming into the frame before the partition is cut off.
The filling properties of the heat material are further improved, and the
Even if foam insulation leaks from the hole, it is difficult to see from the outside
Since it is stored in the inner box, it is particularly necessary to fix the leak
There is an effect such that a no.

According to the second aspect of the present invention,
In addition to the above, the injection port of the foam insulation material is located at the installation position near the foam insulation material entry hole to the front frame of the partition on the inner box of the outer box back plate .
Since there is provided a position directly opposed to the outer box rear plate, when the injection port from the foam insulation is injected, the foam insulation is first
The foamed heat-insulating material is easily injected into this space, and easily fills and foams into the inside of the front frame of the partition through the foamed heat-insulating material intrusion hole.

According to the third aspect of the present invention,
In addition to the above, a gas vent hole is provided to communicate with the concave portion provided on the front surface of the pre-partition frame and to discharge residual air and the like when the foamed heat insulating material enters the pre-partition frame, so that the inside of the pre-partition frame is provided Degassing is effectively performed, and even if the foamed heat insulating material leaks from the pores during filling and foaming, it is stored in the recess, so that in addition to the above effects, failure due to leakage of the foamed heat insulating material to other parts can be prevented. This has the effect that it is not necessary to correct the leakage.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an essential part perspective view of a state where a front cover and a partition front frame of a portion B in FIG. 1 are removed.

FIG. 4 is a perspective view of a pre-partition frame according to the first embodiment.

FIG. 5 is a perspective view of the front frame of the partition seen from D in FIG. 4;

FIG. 6 is a perspective view of a thermal cutting member according to the first embodiment .

FIG. 7 is a sectional view taken along line CC of FIG . 2 ;

FIG. 8 shows one process of filling and foaming the foamed heat insulating material of Example 1 .
FIG .

FIG. 9 is a rear perspective view showing the first embodiment in a laid state.

FIG. 10 is a perspective view of a main part showing a second embodiment of the present invention .

FIG. 11 is a perspective view of a pre-partition frame of FIG . 10;

FIG. 12 is a sectional view taken along line DD of FIG . 10 ;

FIG. 13 shows a conventional multi-door refrigerator with a door removed.
FIG .

FIG. 14 is a longitudinal sectional view of FIG .

[Explanation of symbols]

1 outer box, 1d inlet, 2 inner box, 2a partition,
2e Insulation hole for foam insulation material, 2f Gas vent hole, 2g Gas vent hole, 3 Partition heat insulating member, 3a Gas vent groove, 4
Pre-partition frame, 4f Pores for venting, 4g recess, 5
Foam insulation.

Claims (3)

(57) [Claims] 1. An outer box made of a plate such as a sheet metal, an inner box formed by vacuum-forming a synthetic resin plate and having a partition for dividing a storage chamber into a plurality of sections, and a front surface of the partition. A partitioning front frame having a substantially U-shaped cross section provided in the section, a partitioning heat insulating member is inserted into the inside of the partitioning section, and a space formed by the outer box and the inner box is filled with a foaming heat insulating material and foamed. In the heat insulation box of the refrigerator, the foam insulation is filled with the foam insulation between the outer box and the inner box at a position in contact with both ends of the front frame of the inner box. and provided foam insulation penetration holes that penetrate in the space formed by the front portion of the partition portion Rutotomoni, the partition portion and the partition insulating section
Near the center of the material, the foam insulation material
Gas vent holes to discharge residual air, etc. into the inner box when entering
A heat insulating box body for a refrigerator, characterized by having grooves and grooves . 2. An outer box made of a plate such as a sheet metal, an inner box formed by vacuum-forming a synthetic resin plate and having a partition for dividing a storage chamber into a plurality of sections, and a front surface of the partition. A partitioning front frame having a substantially U-shaped cross section provided in the section, a partitioning heat insulating member is inserted into the inside of the partitioning section, and a space formed by the outer box and the inner box is filled with a foaming heat insulating material and foamed. in the refrigerator of the insulating box body and formed by both of the partition front frame of the inner box
At the position in contact with the end, at the time of filling the foam heat insulating material between the outer box and the inner box, the foam heat insulating material allows the foam heat insulating material to enter a space formed by the front frame of the partition and the front surface of the partition. In addition to providing an entry hole, the foam insulation
Make sure that the foam insulation
Outer box back plate directly facing the location of the foam insulation hole
A heat insulating box for a refrigerator, characterized in that an inlet for the foamed heat insulating material is provided at the position (1). 3. An outer box formed of a plate such as a sheet metal, an inner box formed by vacuum forming a synthetic resin plate and having a partition for dividing a storage chamber into a plurality of sections, and a front surface of the partition. A partitioning front frame having a substantially U-shaped cross section provided in the section, a partitioning heat insulating member is inserted into the inside of the partitioning section, and a space formed by the outer box and the inner box is filled with a foaming heat insulating material and foamed. in the refrigerator of the insulating box body and formed by both of the partition front frame of the inner box
At the position in contact with the end, at the time of filling the foam heat insulating material between the outer box and the inner box, the foam heat insulating material allows the foam heat insulating material to enter a space formed by the front frame of the partition and the front surface of the partition. In addition to providing an intrusion hole , almost
It communicates with the recess provided in the central part, and
A gas vent for exhausting residual air etc. when foam insulation enters.
A heat insulating box for a refrigerator, characterized by having holes .