JP2016130613A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator that comprises a door that includes two vacuum heat insulating materials in a thickness direction and improves design and heat insulation performance.SOLUTION: A refrigerator comprises a door that includes a hard plate, a first vacuum heat insulating material 12, a foam heat insulation material, a second vacuum heat insulating material 13, and an inner plate 21 arranged in this order. In addition, an exterior part 31 is provided between the first vacuum heat insulating material 12 and the hard plate, the first vacuum heat insulating material 12 is attached to the hard plate, and/or the second vacuum heat insulating material 13 is attached to the inner plate 21.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a refrigerator.

  In Patent Document 1, two vacuum heat insulation panels are stacked in the wall thickness direction between an outer box and an inner box of a heat insulation box (Claim 1).

  In Patent Document 2, a vacuum heat insulating material 38 is attached to the door inner plate 42 side to suppress deformation of the door 27 (paragraph 0073, FIG. 7).

JP 2012-32014 A JP 2004-125394 A

Patent Document 1 does not disclose any front door that is frequently touched or visually observed by the user. It is also mentioned that foam insulation can be injected between the vacuum insulation panels instead of the spacers 18 (paragraph 0034, FIGS. 1 and 2).
However, with foaming of the foam heat insulating material and subsequent shrinkage, the vacuum heat insulating material may be uneven, and the outer box side may be deformed. If the outer box side is deformed, the designability may be deteriorated, but Patent Document 1 does not mention anything about this.
Further, it is assumed that the mounting surface for mounting the vacuum heat insulating panel is flat. For this reason, for example, there is room to consider a case where the mounting surface of the vacuum heat insulating panel has an inclination or unevenness or the thickness of the mountable region is not uniform.

  Patent Document 2 does not disclose any method for providing a vacuum heat insulating material on the door outer plate 50 side while suppressing deformation of the door 27.

  This invention made | formed in view of the said situation is equipped with the door which has a hard flat plate, a 1st vacuum heat insulating material, a foam heat insulating material, a 2nd vacuum heat insulating material, and an inner board in order in this order. It is a refrigerator.

  A refrigerator having two vacuum heat insulating materials in the thickness direction and having a door with improved design and heat insulating properties can be provided.

The perspective view of the refrigerator which concerns on Example 1. FIG. Overall view of the right refrigerator compartment door of the refrigerator in FIG. Longitudinal sectional view of the right refrigerator compartment door of FIG. Cross-sectional view of the right-hand side refrigerator compartment door of FIG. Explanatory drawing at the time of foaming material injection of the right refrigerator compartment door using vacuum heat insulating material

  Embodiments of the present invention will be described below with reference to the accompanying drawings. Error! The hyperlink reference is incorrect. Similar components are denoted by the same reference numerals, and the same description will not be repeated.

  FIG. 1 is a perspective view of a refrigerator main body 1 according to Embodiment 1 of the present invention.

  The refrigerator main body 1 is provided with a refrigerator compartment 2, an ice making compartment 3, an upper freezer compartment 4, a freezer compartment 5, a vegetable compartment 6, and doors for closing front openings of the respective storage compartments. The refrigerator compartment doors 2 a and 2 b close the front opening of the refrigerator compartment 2, the upper freezer compartment door 4 a closes the front opening of the upper freezer compartment 4, and the ice making compartment door 3 a closes the front opening of the ice making compartment 3. The door and the freezer compartment door 5 a are doors for closing the front opening of the freezer compartment 5, and the vegetable compartment door 6 a is a door for closing the front opening of the vegetable compartment 6. The refrigerator compartment doors 2a and 2b are constituted by double-open doors in which the left and right doors open from both hinge centers to both sides. The upper freezer compartment door 3a, the ice making compartment door 4a, the freezer compartment door 5a, and the vegetable compartment door 6a are constituted by drawer-type doors, and a drawer container in the storage chamber is pulled out together with the drawer door.

  Hereinafter, although description is mainly given with respect to the refrigerator compartment door 2a, the same effect can be obtained by using the same configuration in other doors.

  2 is a front view of the right refrigerator compartment door 2a, FIG. 3 is an AA longitudinal sectional view of the refrigerator compartment door 2a, and FIG. 4 is a BB transverse sectional view of the refrigerator compartment door 2a. FIG. 5 is an explanatory view of foaming of the door in the door foaming jig. The refrigerator compartment door 2a shown in FIG. 2 has a flat hard plate on the front side. The hard flat plate is not particularly limited as long as it has a predetermined rigidity and is not easily deformed by, for example, a person's pressing force or a force accompanying foaming or shrinkage of the foam heat insulating material. A description will be given using the plate 32. The glass plate 32 has translucency.

  An exterior part 31 is provided on the front side of the glass plate 32. The exterior part 31 has the flat part which leaves the glass plate 32 still, and the wall part provided in the outer periphery of the flat part (for example, refer FIG. 5).

The wall portion extends in a direction perpendicular to the flat portion, and surrounds the outer periphery of the flat portion.
An inner plate 21 is provided on the back side of the refrigerator compartment door 2a. In FIG. 2, the inner plate 21 has a ridge 22 extending in the left-right direction and a ridge 24 extending in the up-down direction on the outer peripheral side. Due to the ridges 22 and 24, the inner plate 21 has a rectangular projection.

  Moreover, the inner plate 21 has a step portion 23 that approaches the glass plate 32 side toward the lower side of the refrigerator compartment door 2a between the ridges 22 extending in the left-right direction. The step portion 23 is provided near the lower ridge 22. The step portion 23 makes it easy to store a plastic bottle or the like on the inner plate 21 side. In addition, a pocket or basket for storing food or the like may be attached by engaging with the ridges 24.

  Two vacuum heat insulating materials 12 and 13 are arranged inside the refrigerator compartment door 2a, and a foam heat insulating material is provided between the two vacuum heat insulating materials. Even if one vacuum heat insulating material breaks, since it can be insulated by the other vacuum heat insulating material, a large decrease in heat insulating performance can be suppressed.

  The vacuum heat insulating material 12 is provided on the glass plate 32 side, and part of the vacuum heat insulating material 12 is opposed to the ridges 22 and 24 and the step portion 23 provided on the inner plate 21 side. Since the vacuum heat insulating material 12 is separated from the inner plate 21, even if it is arranged facing the ridges 22, 24 and the stepped portion 23, it is difficult to inhibit the injection of the foam heat insulating material. For this reason, the heat insulating performance can be improved by providing the vacuum heat insulating material 12 in a wide range.

  Moreover, the vacuum heat insulating material 12 is affixed on the exterior part 31 using the double-sided tape, for example. A glass plate 32 is located on the front side of the exterior part 31. For this reason, even if the foam heat insulating material is injected and contracted later, the glass plate 32 is hard and is not easily deformed. Since the glass plate 32 side of the refrigerator compartment door 2a is provided on the outside of the refrigerator body 1, it is easy for the user to visually observe or touch it, but by doing so, the design of the refrigerator compartment door 2a is enhanced. Moreover, the discomfort to the tactile sensation of the user can be suppressed.

  Furthermore, even if the foam heat insulating material contracts, the vacuum heat insulating material 12 is stuck to the exterior part 31, so that the displacement is suppressed. The exterior portion 31 can be formed of a resin such as ABS.

  The vacuum heat insulating material 13 is provided on the inner plate 21 side, and is located in a flat region on the inner side (the vertical direction side in FIG. 3) from the ridge 22 and the step portion 23 of the inner plate 21. Thereby, the foaming heat insulating material can be effectively filled into the ridges 22 and the stepped portions 23. Similarly, the vacuum heat insulating material 13 is provided on the inner peripheral side from the ridge 24.

  The vacuum heat insulating material 13 is affixed to the inner plate 21. Thereby, the position shift of the vacuum heat insulating material 13 can be suppressed. In addition, since the vacuum heat insulating material 13 is located inside the protrusions 22 and 24 and the step part 23, the area is smaller than the area of the vacuum heat insulating material 12.

  The inner plate 21 side of the refrigerator compartment door 2a is attached to the side wall of the exterior portion 31 (the end surface in the vertical direction in FIG. 3) wall portion. The exterior part 31 and the inner plate 21 thus form the outer shell of the refrigerator compartment door 2a, and have the glass plate 32, the vacuum heat insulating materials 12, 13 and the foam heat insulating material inside.

  The thickness of the vacuum heat insulating material 12 provided on the exterior portion 31 side is less than half of the length in the thickness direction from the glass plate 32 to the tip of the wall portion (the height in the vertical direction of the exterior portion 31 in FIG. 5). The step of injecting the foam heat insulating material can be performed by injecting the liquid foam heat insulating material 42 from the injection head 41. By making the thickness of the vacuum heat insulating material 12 as described above, it is possible to prevent the liquid splash 43 from scattering outside the exterior portion 31. Thereby, it can suppress that the liquid splash 43 adheres to the outer surface of the exterior part 31, and can suppress generation | occurrence | production of the defect in the manufacturing process of the refrigerator door 2a.

  On the other hand, since the vacuum heat insulating material 13 does not need to consider the liquid splash 43, it can have thickness. For example, by making the vacuum heat insulating material 13 thicker than the vacuum heat insulating material 12, the refrigerator compartment door 2a with improved heat insulation can be manufactured. At this time, by setting the thickness of the vacuum heat insulating material 12 as described above, the adhesion of the liquid splash can also be suppressed.

  In addition, the aspect in particular of the vacuum heat insulating materials 12 and 13 is not restrict | limited, Moreover, the relative movement of these members should just be suppressed. Further, the door to which the above configuration is applied is not limited to the refrigerator compartment door 2a, and may be a drawer type door or a kannon type door.

DESCRIPTION OF SYMBOLS 1 Refrigerator body 2 Refrigerating room 2a Right side refrigerating room door 2b Left side refrigerating room door 3 Ice making room 3a Ice making room door 4 Upper freezing room door 4a Upper freezing room door 5 Lower freezing room door 5a Lower freezing room door 6 Vegetable room 6a Vegetable room door 12 Glass Plate side vacuum heat insulating material 13 Inner plate side vacuum heat insulating material 21 Door inner plate 22 Convex strip 23 Stepped portion 24 Convex strip 31 Exterior portion 32 Glass plate (hard flat plate)
41 Foam insulation injection head 42 Foam insulation 43 Liquid splash 45 Door foaming jig

Claims (4)

  A refrigerator comprising a door having a hard flat plate, a first vacuum heat insulating material, a foam heat insulating material, a second vacuum heat insulating material and an inner plate arranged in this order. An exterior part is provided between the first vacuum heat insulating material and the hard flat plate,
Affixing the first vacuum heat insulating material on the hard flat plate, and / or
The refrigerator according to claim 1, wherein the second vacuum heat insulating material is attached to the inner plate. An exterior part is provided between the first vacuum heat insulating material and the hard flat plate,
The exterior portion has a wall portion extending toward the first vacuum heat insulating material,
The refrigerator according to claim 1 or 2, wherein a thickness of the second vacuum heat insulating material is larger than a thickness of the first vacuum heat insulating material. The inner plate has a ridge or a step,
4. The refrigerator according to claim 1, wherein a part of the first vacuum heat insulating material is opposed to the ridge or the stepped portion. 5.