TW201425843A - Refrigerator - Google Patents

Abstract

To provide a refrigerator using an inner box that is joined to a partition at the time of vacuum molding, which can prevent deterioration of insulation performance of a heat-insulating cabinet, the increase in production cost, and breakage of a vacuum insulator. A refrigerator 90 includes a heat-insulating cabinet 10 having an inner box 2 and an outer box 1, a space between the inner box 2 and the outer box 1 being filled with a vacuum insulator 60 and a foam insulator 3, and a partition 4 that divides an inner space of the heat-insulating cabinet 10 on an inner peripheral side of the inner box 2 into a plurality of storage compartments. The inner box 2 and the partition 4 are joined when the inner box 2 is vacuum-molded. The partition 4 has, in an outer peripheral portion opposed to the inner box 2, a flange 44 projecting outward along the inner box 2 and a recess 70 receding away from the inner box 2. The recess 70 has a rib projecting from a side face portion of the recess 70 in a direction opposite from the flange 44.

Description

refrigerator

The present invention relates to a refrigerator in which an internal space of a heat insulating box is divided into a plurality of storage rooms by a partition.

The outer appearance of the conventional refrigerator is composed of a heat insulating box. The thermal barrier system includes an outer casing, an inner casing, and a foam insulation material filled in a space between the components. Further, the inside of the heat insulating box (the inner peripheral side space of the inner box) is divided into a plurality of storage compartments (refrigeration chamber, freezing compartment, vegetable compartment, ice making compartment, etc.) having different temperature zones by means of a partition.

In such a conventional refrigerator, it is also proposed to join the inner box and the partition when the inner box is vacuum formed. For example, it is proposed that "the inner box 2 is formed by vacuum forming. In Fig. 3, the 18 series inner box is formed. The mold is required, and the 18a is the freezer side of the mold 18, and the 18b is the refrigerating chamber side. Further, the 18c is inserted into the mold for dividing the inner box 2 into the partition 3 of the refrigerating compartment and the freezing compartment during vacuum forming. The inner casing 2 is formed by inserting the partition plate 3 having the first reinforcing plate 12 into the cavity portion 18c, and covering the mold 18 with the inner box piece 19, thereby forming by vacuum forming. At this time, since the inner box piece 19 is in close contact with the side wall side piece 12b of the first reinforcing plate 12 described in FIG. 2, and is in close contact with the first L-shaped chamfered rib 12f and the second L-shaped chamfered rib 17, The inner box 2 and the first reinforcing plate 12 and the partition plate 3 are firmly fixed to each other (see Patent Document 1).

[Prior patent documents]

[Patent Literature]

[Patent Document 1] Patent No. 4006901 (paragraphs [0017] to [0019], 2, and 3)

In recent years, in order to improve the energy-saving property, a refrigerator in which a vacuum heat insulating material having excellent heat insulating properties and a foam heat insulating material are disposed between an inner box and an outer box is gradually increased. In the case of a refrigerator having a vacuum heat insulating material between the inner box and the outer box, when the inner box is vacuum formed by a conventional method, if the inner box is to be joined to the partition, the following occurs. The problem point.

Fig. 5 is a perspective view showing the appearance of a separator of a conventional refrigerator.

As shown in Fig. 5, the conventional separator 104 is formed by sandwiching a heat insulating material 143 formed of polystyrene foam or the like between the upper outer wall 104a and the lower outer wall 104b formed of a resin such as PP. Further, the upper outer wall 104a and the lower outer wall 104b are locked by, for example, screws or the like. In the conventional partition plate 104, a flange 144 that protrudes outward and inward along the inner casing 102 is formed on an outer peripheral portion of the inner casing 102 that faces the conventional heat insulating box 110 to be described later. Further, the conventional spacer 104 is formed on a surface of the flange 144 facing the inner case 102, and a plurality of chamfered ribs 150 having an L shape are formed so as to be spaced apart from each other.

Fig. 6 is a cross-sectional view showing the vicinity of a partition of a heat insulating box of a conventional refrigerator. Further, Fig. 6 is a cross-sectional view taken along the line A-A of Fig. 5.

In the conventional heat insulating box 110 shown in Fig. 6, the inner box 102 is joined to the partition 104 when the inner box 102 is vacuum formed, and then the inner box 102 and the vacuum heat insulating material 160 are adhered thereto. The outer casing 101 on the side of the circumference is combined, and the space between the inner casing 102 and the outer casing 101 that has been combined causes the foamed heat insulating material 103 to be foamed and filled. As shown in Fig. 6, when the inner box 102 is vacuum formed, since the inner box piece of the material of the inner box 102 positively bites the chamfered rib 150, the inner box 102 can be prevented from being separated from the partition 104. The inner box 102 and the partition 104 can be firmly joined.

However, since the conventional spacer 104 is a chamfered rib 150 that protrudes toward the outside of the library (the outer case 101 side) than the flange 144, it is in contact with the vacuum heat insulating material 160 adhered to the outer case 101, and it is possible to separate the vacuum. The problem of the case where the thermal material 160 is damaged. Further, in order to eliminate this problem, in order to prevent the vacuum heat insulating material 160 from interfering with the chamfered rib 150, since the vacuum heat insulating material 160 needs to be partially thinned, the heat insulating property of the heat insulating box 110 is partially The problem of deterioration. Further, when the vacuum heat insulating material 160 is partially thinned, there is a problem that the cost is increased due to the additional processing, or there is a problem that the vacuum heat insulating material is damaged during the additional processing.

The present invention has been made in order to solve the problems as described above, and an object of the present invention is to provide a refrigerator which can prevent a heat insulating box from being used in a refrigerator which is joined to a partition during vacuum forming. Deterioration of thermal insulation performance, increase in manufacturing costs, and damage to vacuum insulation materials.

The refrigerator of the present invention comprises: a heat insulating box body having an inner box and an outer box, and a vacuum heat insulating material and a foam heat insulating material are filled in the inner box and the outer box a space between the boxes; and a partition, the inner space of the heat insulating box that will become the inner peripheral side of the inner box is divided into a plurality of storage chambers; and the inner box is vacuum-formed when the inner box is vacuum formed a refrigerator joined by the partition plate, the partition plate being attached to an outer peripheral portion facing the inner box, forming a flange protruding outward along the inner box, and a recess recessed on a side away from the inner box In the concave portion, a rib projecting from a side surface portion of the concave portion in a direction opposite to the flange is formed.

In the refrigerator of the present invention, when the inner box and the partition are joined at the time of molding the inner box, the sheet member which is the material of the inner box bites the rib of the partition, and the inner box and the partition are joined. At this time, since the rib system of the refrigerator of the present invention is not more protruded than the outer peripheral portion of the separator, the vacuum heat insulating material is not damaged when the heat insulating box is formed. Therefore, it is not necessary to additionally process the vacuum heat insulating material locally. Therefore, the present invention can prevent the deterioration of the heat insulating performance of the heat insulating box, the increase in the manufacturing cost of the refrigerator, and the damage of the vacuum heat insulating material.

1‧‧‧Outer box

2‧‧‧ inner box

3‧‧‧Foam insulation

4‧‧‧Baffle

4a‧‧‧ upper outer wall

4b‧‧‧ Lower outer wall

5‧‧‧

6‧‧‧ cooler

10‧‧‧Insulation box

20‧‧‧Mold

20a‧‧‧ convex

20b‧‧‧ convex

20c‧‧‧Mold groove department

30‧‧‧ inner box

43‧‧‧Insulation materials

44‧‧‧Flange

45‧‧‧Inside flange

60‧‧‧vacuum insulation

70‧‧‧ recess

80‧‧‧ rib

90‧‧‧ refrigerator

101‧‧‧Outer box (formerly)

102‧‧‧ inner box (formerly)

103‧‧‧Foam insulation

104‧‧‧Baffle (past)

104a‧‧‧Upper outer wall (formerly)

104b‧‧‧ Lower outer wall

110‧‧‧Insulation box (formerly)

143‧‧‧Insulation materials (formerly)

144‧‧‧Flange (past)

150‧‧‧Chamfering ribs

160‧‧‧Vacuum insulation materials (formerly)

Fig. 1 is a side sectional view showing a refrigerator according to an embodiment of the present invention.

Fig. 2 is a perspective view showing the vicinity of the outer peripheral portion of the partition plate of the refrigerator according to the embodiment of the present invention.

Fig. 3 is a cross-sectional view showing the vicinity of a partition plate of a refrigerator according to an embodiment of the present invention.

Fig. 4 is an explanatory view for explaining a method of molding a refrigerator according to an embodiment of the present invention.

Fig. 5 is a perspective view showing the appearance of a separator of a conventional refrigerator.

Fig. 6 is a cross-sectional view showing the vicinity of a partition of a heat insulating box of a conventional refrigerator.

Fig. 1 is a side sectional view showing a refrigerator according to an embodiment of the present invention. Fig. 2 is a perspective view showing the vicinity of the outer peripheral portion of the partition of the refrigerator. Further, Fig. 3 is a cross-sectional view showing the vicinity of the partition of the refrigerator.

Hereinafter, the refrigerator 90 of the present embodiment will be described with reference to these first to third figures. Further, the left side of the first drawing is the front side of the refrigerator 90. Further, Fig. 3 is a cross-sectional view taken along line B-B of Fig. 2;

The refrigerator 90 of the present embodiment includes a heat insulating box 10 that serves as an outer casing of the refrigerator 90. The heat insulating box 10 includes an outer box 1 mainly formed on an outer circumferential surface of the heat insulating box 10, an inner box 2 mainly formed on an inner circumferential surface of the heat insulating box 10, and a vacuum heat insulating material 60. The foam heat insulating material 3 is filled on the inner circumferential side of the outer casing 1 and the outer circumferential side of the inner casing 2. The heat insulating box 10 constructed in this manner divides the inside (i.e., the inner peripheral side of the inner box 2) into a plurality of storage compartments (refrigerating compartment, freezing compartment, vegetable compartment, and the temperature compartment) by means of the partition plate 4. Ice making room, etc.). Each of these storage compartments is open to the front, and the opening of the front of each storage compartment is closed by the door 5 to be opened and closed. Moreover, in the heat insulation box 10, the cooler 6 is provided in the back side. The cold air cooled by the cooler 6 is introduced into each storage chamber via a duct.

The separator 4 is formed by sandwiching a heat insulating material 43 made of polystyrene foam or the like between the upper outer wall 4a and the lower outer wall 4b formed of a resin such as PP. Further, the upper outer wall 4a and the lower outer wall 4b are locked by, for example, screws or the like. The upper outer wall 4a and the lower outer wall 4b of the partition plate 4 are formed on the outer peripheral portion facing the inner box 2 of the heat insulating box 10 so as to extend outward along the inner box 2 Projected flange 44.

Further, the outer peripheral portion of the upper outer wall 4a and the lower outer wall 4b facing the inner box 2 is formed on the inner side of the partition plate 4 closer to the inner side flange 45 than the flange 44. . A gap is formed between the inner flange 45 of the upper outer wall 4a and the inner flange 45 of the lower outer wall 4b, and the heat insulating material 43 protrudes from the gap toward the outer peripheral side. In other words, in the present embodiment, the wall surface between the flange 44 of the upper outer wall 4a and the lower outer wall 4b and the inner flange 45, the inner flange 45 formed on the upper outer wall 4a and the lower outer wall 4b, and the inner flange 45 are protruded from the inner side. The portion of the heat insulating material 43 projecting from the edge 45 is formed on the outer peripheral portion of the partition plate 4 facing the inner box 2, and is formed in a recess 70 recessed on the side away from the inner box. Further, the partition plate 4 of the present embodiment is formed on the side surface of the recessed portion 70, that is, the wall surface between the flange 44 of the upper outer wall 4a and the lower outer wall 4b and the inner flange 45, and is formed to protrude from the side opposite to the flange 44. Ribs 80. Further, in the present embodiment, the rib 80 is provided at a position facing the flange 44, but the rib 80 may be provided closer to the inner flange 45 side than the flange 44. Further, in the present embodiment, a plurality of ribs 80 are formed at predetermined intervals.

In the heat insulating box 10 of the present embodiment, when the inner box 2 is vacuum formed, the inner box 2 and the partition 4 are joined, and then the inner box 2 and the vacuum heat insulating material 60 are adhered to the outer peripheral side. The box 1 is combined, and the foam heat insulating material 3 is foamed and filled between the inner box 2 and the outer box 1 after the combination.

Hereinafter, a method of forming the inner box 2 will be described.

Fig. 4 is an explanatory view for explaining a method of molding a refrigerator according to an embodiment of the present invention.

The mold 20 used in vacuum forming the inner box 2 is A plurality of convex portions (protrusions 20a, 20b) are formed in a manner corresponding to the shape of each storage chamber. Further, in the mold 20, a cavity portion 20c for inserting the partition plate 4 partitioning between the storage chambers is formed between the convex portion 20a and the convex portion 20b. Further, "30" shown in Fig. 4 is an inner box piece which is a material of the inner box 2. The inner box piece 30 is formed, for example, of a resin such as ABS.

The inner box 2 is formed by inserting the separator 4 into the cavity portion 20c, covering the mold 20 with the inner box piece 30 formed of the resin of the heated thermoplastic resin such as ABS, and forming it along the mold 20 by vacuum forming. Or the shape of the outer periphery of the partition 4.

At this time, as shown in FIG. 3, the inner box piece 30 is thermally contracted and enters the recessed portion 70. That is, the inner box piece 30 is in close contact with the flange 44 of the partition 4, and is also in close contact along the concave portion 70. Therefore, the inner box piece 30 is a chamfered rib 80. Therefore, even if the inner box piece 30 is to be separated from the recessed portion 70, since the inner box piece 30 is caught by the chamfered rib 80, the inner box 2 and the partition 4 can be firmly joined. Further, since the rib 80 of the present embodiment does not protrude further than the flange 44 of the partition 4 to the outside of the storage (the outer casing 1 side), the vacuum heat insulating material 60 is not damaged.

As described above, in the refrigerator 90 configured as described in the present embodiment, since the ribs 80 of the separator 4 do not damage the vacuum heat insulating material 60, it is not necessary to partially thin the vacuum heat insulating material 60, and the manufacturing becomes easy. Therefore, the refrigerator 90 of the present embodiment can be used as a refrigerator that can prevent the deterioration of the heat insulating performance of the heat insulating box 10, increase the manufacturing cost of the refrigerator 90, and damage the vacuum heat insulating material 60.

Further, since the refrigerator of the present embodiment forms the ribs 80 of the plurality of partition plates 4, the bite of the inner box piece 30 is increased, and the inner box 2 and the partition plate 4 can be joined more firmly.

Further, in the present embodiment, the bottom portion of the concave portion 70 is formed by the inner flange 45 and the heat insulating material 43, but the formation structure of the concave portion 70 is not limited thereto. For example, a gap may not be formed between the inner flange 45 of the upper outer wall 4a and the inner flange 45 of the lower outer wall 4b, and the inner flange 45 of the upper outer wall 4a and the lower outer wall 4b may be the bottom of the recess 70. Further, for example, the inner flange 45 may not be provided, and the end surface portion of the heat insulating material 43 may be the bottom of the recess 70.

1‧‧‧Outer box

2‧‧‧ inner box

3‧‧‧Foam insulation

4‧‧‧Baffle

4a‧‧‧ upper outer wall

4b‧‧‧ Lower outer wall

10‧‧‧Insulation box

43‧‧‧Insulation materials

44‧‧‧Flange

45‧‧‧Inside flange

60‧‧‧vacuum insulation

70‧‧‧ recess

80‧‧‧ rib

Claims (2)

A refrigerator comprising: an insulated box body having an inner box and an outer box, and a vacuum insulation material and a foam insulation material are filled in a space between the inner box and the outer box; and the partition plate The inner space of the heat insulating box on the inner peripheral side of the inner box is divided into a plurality of storage chambers; and the refrigerator that joins the inner box and the partition when vacuum forming the inner box is characterized in that: The partition plate is formed on a peripheral portion facing the inner box, and has a flange that protrudes outward along the inner box and a recess that is recessed from a side away from the inner box; and the recess is formed from the recess The side surface of the recess is a rib that protrudes in a direction opposite to the flange. A refrigerator according to claim 1, wherein a plurality of the ribs are formed.