KR970002647B1 - Refrigerator - Google Patents

Abstract

None.

Description

Refrigerator

1 is a longitudinal sectional view of a cabinet of a refrigerator showing an embodiment of the present invention;

2 is an exploded perspective view of FIG.

3 is an enlarged longitudinal sectional view showing the boundary between the refrigerator compartment and the freezer compartment,

4 is a longitudinal sectional view of a conventional refrigerator cabinet,

5 is an enlarged longitudinal sectional view showing a boundary between a refrigerating compartment and a freezing compartment in a conventional refrigerator.

* Explanation of symbols for main parts of the drawings

10: cabinet 12: outer box

14: inner box 15: filling space of the insulation

16: refrigerator compartment 18: freezer compartment

20: refrigeration room (vegetable room) 22: upper partition

22a: side portion of the upper partition 30: lower partition

40a: side portion of lower partition 40: upper engagement recess

40b: side wall of upper engagement recess 44: lower engagement recess

The present invention relates to a refrigerator. As shown in FIG. 4, the cabinet 111 of the refrigerator includes an outer box 112 made of iron plate, and an inner box 114 made of synthetic resin plate. The outer box 112 and the inner box 114 are combined with the filling space 115 of the urethane foam W interposed therebetween. The inside of the cabinet 111 is divided up and down by the partition plates 220 and 130 which are separate plate shapes, and comprises the refrigerating chamber 116, the freezing chamber 118, and the vegetable chamber 120. As shown in FIG. The partition body 122 installs engagement recesses 140 in the front and rear directions on each side wall of the inner box 114 and inserts both sides of the tubular partition body 122 into the pair of engagement recesses 140. It is fixed to the inside of the cabinet 111 is fixed horizontally. In addition, in order to make the heat insulation effect of the freezer compartment 118 larger than the heat insulation effect of the refrigerating compartment 116, the thickness of the filling space 115 in the freezer compartment 118 (hereinafter referred to as the freezer compartment insulation thickness) is filled in the refrigerating compartment 116. The thickness of the portion 115 (hereinafter referred to as the refrigerating chamber insulation thickness) is made thicker and the filling amount of the urethane foam W in the filling space 115 is increased in the freezing chamber 118.

However, in order to increase the thermal insulation effect of the freezer compartment 118 as described above, as shown in FIG. 5, the thickness of the filling space 115 at the position of the refrigerating compartment thermal insulation head A and the engagement recess 140 is hereinafter referred to as Extreme step difference occurs in the (B) and the freezer compartment insulation thickness (C). For example, an extreme step occurs in the refrigerator compartment insulation thickness C. For example, if the refrigerator compartment insulation thickness (A) is 30 mm, the recess insulation thickness (B) is 25 mm, and the freezer compartment insulation thickness (C) is 45 mm, the difference between the recess insulation thickness (B) and the freezer compartment insulation thickness (C) is 20 mm. Grows extremely When the foam urethane (W) is filled by such a thickness difference, the filling space portion 115 of the freezing compartment 118 and the filling space portion 115 of the refrigerating compartment 116 and the engagement recess portion 140 ( When the amount of the foamed urethane (W) filled in 115) is different and foamed about 40 times, a difference occurs in the foaming pressure. That is, in the filling space 115 of the filling recess 115 of the freezing compartment 118 and the filling space 115 of the refrigerating compartment 116 having a large amount of filling, the filling recess 115 of the engaging recess 140 having a high foaming pressure and a small filling amount is provided. Low foaming pressure In the conventional refrigerator, a pipe condenser for heating is installed inside the filling space 115, which serves as a reinforcing member of the side plate of the outer box 112, thereby strengthening rigidity. For this reason, when the foaming urethane W was filled, the side plate of the outer box 11l2 was hardly bent by the difference of foaming pressure. However, in recent years, in order to easily dispose of the refrigerator due to environmental problems, the heat dissipating pipe condenser is separated from the side plate of the outer box 112 and installed on the bottom surface. For this reason, the rigidity of the side plate of the outer box 112 weakened. As a result of this change, as shown by the two-dot chain line in FIG. 5, the side plates expand in the freezer compartment 118 and the refrigerating compartment 116 having a high foaming pressure of the foamed urethane W, and deform in a wave shape. In this case, if the reinforcing plate is attached to the side plate of the outer box 112, the problem can be solved, but there is a new problem that the attachment work is complicated and expensive.

Accordingly, an object of the present invention is to provide a new refrigerator cabinet in which the side plates of the outer box are not deformed when the foamed urethane (W) is foamed into the filling space. The refrigerator of the present invention comprises a refrigerator compartment and a freezer compartment divided into upper and lower parts consisting of an outer box and an inner box which is combined with the outer space and the filling space portion of the heat insulating material interposed therebetween. The thickness of the filling space of the engagement recess is set by setting a thickness larger than the thickness of the filling space, and setting the engagement recesses to which both sides of the partition body are engaged, and forming sidewalls of the inner box on the engagement recesses. It is formed to gradually become thicker from the side of the refrigerator compartment toward the side of the freezer compartment. The refrigerator having the above-mentioned structure was formed such that the thickness of the filling space of the engaging recess was gradually increased from the side of the refrigerating chamber to the side of the freezing chamber by forming the side wall of the inner box in the engaging recess. Therefore, when the urging is injected into the filling space, the filling space portion of the engagement recess, the thickness of the refrigerating compartment, and the insulation thickness of the refrigerating compartment do not have a large step. Since the pressure difference of the foaming pressure does not change rapidly in the negative filling space, no deformation occurs in the side plate of the outer box.

EXAMPLE

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

Reference numeral “10” is a cabinet of the refrigerator according to one embodiment of the present invention, which is combined with an outer box 12 formed of an iron plate and a filling space portion 15 of a foam urethane W therebetween. It consists of an inner box 14. The internal structure of the cabinet 10 is the refrigerating chamber 16 at the upper end, the freezing chamber 18 at the middle, and the vegetable chamber 20 at the lower end. The temperature of the vegetable chamber 20 is set substantially the same as the temperature of the refrigerating chamber 16. Therefore, the vegetable compartment 20 is a refrigerator compartment substantially. In addition, the refrigerating chamber described in claim 1 of the present application includes not only the negotiating refrigerating chamber but also a compartment used at a substantially higher temperature than the freezing chamber such as a vegetable compartment. Reference numeral "22" denotes a plate-shaped upper partition body that divides the upper portion of the inner box 14 into a refrigerating chamber 16 and a freezing chamber 18. The upper partition body 22 has a three-layer structure consisting of a plate-shaped resin foamed body 24 and an upper plate 26 and a lower plate 28 made of synthetic resin attached to upper and lower surfaces thereof. An interior of the upper partition 22 is provided with a passage, not shown, to allow cold air to circulate from the refrigerating chamber 16 to the rear of the freezing chamber 18. The side part 22a of the upper partition body 22 is formed in taper shape so that a lower side may become inner side. Reference numeral '' 30 '' is a plate-shaped lower partition which divides the lower part of the inner box 14 into the freezer compartment 18 and the vegetable compartment. Like the upper partition 22, the lower partition 30 has a three-layer structure of an upper plate 32, a synthetic resin foam 34, and a lower plate 36. The side part 30a of the lower partition body 30 is formed in taper shape so that an upper side may become an inner side. Reference numeral 40 denotes an upper engagement recess for installing the upper partition 22 provided on the upper side walls of the inner box 14. The upper engagement recess 40 is provided horizontally in the front-rear direction between the refrigerating chamber 16 and the freezing chamber 18. In addition, the upper engagement recess 40 is a recess having a substantially c-shaped cross section having an upper surface 40a, a side wall 40b and a lower surface 40c, and the side wall 40b is a lower filling space 15. It is formed in taper shape so that the thickness of) may become thick. The side part 22a of the upper partition body 22 is also formed in a taper shape, and when the side part 22a of the upper partition body 22 is inserted in the upper engagement recess 40, it can be fixed horizontally without shaking. have. Reference numeral 44 denotes a lower engagement recess for attaching a lower partition 30 installed below the inner box 14. The lower engagement recess 44 is provided horizontally in the front-rear direction between the freezing chamber 18 and the vegetable chamber 20. In addition, the lower engagement recess 44 has an upper surface 44a, a side wall 44b, and a lower surface 44c having a cross-section having a substantially c-shaped side wall 44b of the lower filling space 15. It is formed in taper shape so that thickness may become thin. The side surface portion 30a of the lower partition body 30 is also formed in a tapered shape so that when the side surface portion 30a of the lower partition body 30 is inserted into the lower engagement recess 44, it can be horizontally fixed without shaking. .

For example, the thickness of the filling space 15 is about 30 mm in the refrigerating compartment insulation thickness (A), 45 mm in the freezer compartment insulation thickness (c), and the recess insulation insulating thickness (on the upper surface 40a of the upper engagement recess 40). b ₁ ) is 25 mm, and the recess insulation thickness B ₂ is 40 mm on the lower surface 40b. In this case, the difference between the recess insulation thickness B ₁ and the recess insulation thickness B ₂ is 15 mm, but by forming the side wall 40b of the upper engagement recess 40 in a tapered shape on the upper surface 40a. Steps do not occur in the heat insulation thickness and the heat insulation thickness in the lower surface (40b). Thereby, the thickness of the filling space part 15 becomes thick gradually from the refrigerator compartment heat insulation thickness A, and reaches the refrigerator compartment heat insulation thickness C. As shown in FIG. When urethane (W) is injected and foamed into the filling space 15 of the cabinet 10 having the above-described configuration, the upper part of the recessed portion is formed at the boundary between the refrigerator compartment insulation thickness A and the freezer compartment insulation thickness C as described above. Since the difference in insulation thickness is not large because the side wall 40b of 40 is tapered, the filling space 15 of the refrigerating chamber 16 and the filling space 15 of the freezer compartment 18 and In the filling space 15 of the upper engagement recess 40, a large pressure difference does not occur in the foaming pressure of the foamed urethane W. Therefore, the wave shape deformation as in the prior art does not occur in the side plate of the outer box 12. In addition, since the side wall 44b is also tapered in the lower engagement recess 44, the vegetable chamber 20 is gradually thinned from the freezer compartment insulation thickness to the insulation thickness and the urethane foam W is filled in the filling space 15. When injection foaming does not occur wave-shaped deformation in the side plate of the outer box (12).

In addition, in the above embodiment, the inside of the cabinet is divided into three rooms of the refrigerating chamber, the freezing chamber, and the vegetable chamber from the top, but the present invention is not limited thereto. Can be. The refrigerator of the present invention is configured such that the side wall is tapered in the engaging recess of the inner box into which the partition body is fitted, gradually increasing from the refrigerator compartment insulation thickness to the freezer compartment insulation thickness. Therefore, when urethane is injected and foamed into the filling space, the pressure difference of the foaming pressure between the filling space portion in the refrigerating compartment and the filling space portion in the freezing compartment decreases, and deformation does not occur in the side plate of the outer box.

Claims (1)

The inner box is divided up and down by partition members, and the cabinet 10 is constituted by an inner box 14 constituting the refrigerating chamber 16 and the freezing chamber 18, and an outer box 12 accommodating the inner box. And a heat insulating part 15 formed in the space formed by the outer box, and the heat insulating part facing the freezing compartment is formed thicker than the heat insulating part facing the cold compartment, wherein both sides of the inner box 14 have the The engaging recess 40 which engages the partition member is formed in a tapered shape so that the thickness of the heat insulating portion facing the engaging recess becomes thicker from the refrigerating chamber side 40a toward the freezing chamber side 40c. Refrigerator characterized in that.