CN-116235012-B - Refrigerator with a refrigerator body

CN116235012BCN 116235012 BCN116235012 BCN 116235012BCN-116235012-B

Abstract

The invention provides a refrigerator which ensures the strength of a refrigerator body and reduces the filling amount of a foaming heat insulation material. The refrigerator of the invention comprises a refrigerator body, wherein the refrigerator body is provided with a storage chamber with an opening at the front, a foaming heat insulation material is filled in a foaming way in a region between an inner box and an outer box, the upper and lower dimensions of the refrigerator body are larger than the left and right dimensions, the left side surface and/or the right side surface of the refrigerator body are/is configured to be provided with a front heat insulation material which continuously foams and fills the foaming heat insulation material in the vertical direction at the front end, and the refrigerator body is provided with a region with a smaller thickness capable of flowing than the surrounding foaming heat insulation material, and is provided with other heat insulation materials with heat insulation performance higher than that of the foaming heat insulation material.

Inventors

KANO SHIYOUICHI
MASAYASU TSUBUKU
WATANABE HIROTOSHI
UCHIYAMA TAKASHI
ANDO HIROAKI

Assignees

日立环球生活方案株式会社

Dates

Publication Date: 20260508
Application Date: 20210826
Priority Date: 20210215

Claims (12)

1. A refrigerator, characterized by comprising: a case body having a storage chamber with a front opening, a region between the inner case and the outer case being foam-filled with a foam insulation material, and having a vertical dimension larger than a horizontal dimension, and Ribs which are arranged in the storage chamber on the left side surface and the right side surface of the inner box and hold the shelf, A front-end heat insulating material is formed in the front end portion of the left side surface and/or the right side surface and in a first region in which the foam heat insulating material is foam-filled in the up-down direction, A second region, which is a region in which the inner case is recessed from the first region toward the outer case, is formed in a region on the rear side of the first region and on the upper side of the uppermost rib, A third region is formed in a region of a front-rear range between the first region and the front end portion of the rib, and a region which is located rearward of the first region and is sandwiched by the rib in the upper-lower direction, An injection port is provided on the back of the outer case, Comprises another heat insulating material having a heat insulating property higher than that of the foamed heat insulating material, The second region is smaller in filling thickness or unfilled than the third region.
2. The refrigerator according to claim 1, wherein, The rib or the guide rail provided on the left side surface and the right side surface are respectively reinforced.
3. The refrigerator according to claim 2, wherein, The thickness of the foam insulation material which can flow from the front end of the rib or the guide rail to the front end insulation material is large, The region overlapping with the rib or the guide rail is filled with a foam insulation material.
4. The refrigerator according to claim 1, wherein, The first region, the second region, and the third region are formed in a region inside the edge of the other heat insulating material in the projection plane of the other heat insulating material.
5. The refrigerator according to any one of claims 1 to 4, wherein, The front end of the top surface and/or the bottom surface of the box body is continuously filled with a foam insulation material together with the front end insulation material.
6. The refrigerator according to claim 1, wherein, In the top surface of the case, the thermal insulating foamed material is not located on at least a part of the lower surface of the other thermal insulating material, The inner case is fixed to the lower surface side of the other heat insulating material with an adhesive.
7. The refrigerator of claim 6, wherein, A gasket is provided between the upper surface of the other heat insulating material and the outer case.
8. The refrigerator according to claim 1, wherein, In the top surface of the case, the thermal insulating foamed material is not located on at least a part of the lower surface of the other thermal insulating material, In a region where the thermal insulating foamed material is not located on the lower surface of the other thermal insulating material, a top plate is provided below the inner box.
9. The refrigerator according to claim 6 or 8, wherein, In the top surface of the case, the thermal insulating foamed material is located on the front and rear and left and right side surfaces of the other thermal insulating material.
10. The refrigerator according to claim 1, comprising: other storage chambers having a temperature zone lower than the temperature zone of the storage chamber, and A heat insulating partition for partitioning the storage chamber from the other storage chamber, The heat insulating partition part is internally provided with a foamed heat insulating material and other heat insulating materials having heat insulating properties higher than those of the foamed heat insulating material, In the heat insulating partition portion, a region having a smaller flowable thickness of the thermal insulating foamed material than the surrounding region exists in a projection plane in a direction from the storage chamber toward the other storage chamber.
11. The refrigerator as claimed in claim 10, wherein, The region where the flowable thickness is small is provided with a portion not filled with the foamed heat insulating material.
12. The refrigerator as claimed in claim 10, wherein, In the region where the flowable thickness is small, a concave portion is provided at least on a surface of the heat insulating partition portion facing the other storage chamber.

Description

Refrigerator with a refrigerator body Technical Field The present invention relates to a refrigerator. Background In order to meet the demands for space saving and large capacity, a technique of reducing the wall thickness of a refrigerator to expand the inner volume is known. The energy saving performance of the refrigerator is mainly established by using two heat insulating materials, namely, a vacuum heat insulating material and a foamed heat insulating material. Accordingly, in recent years, a refrigerator has been proposed in which the coverage and thickness of a vacuum insulation material excellent in heat insulating properties are improved and the thickness of a foamed insulation material is reduced. For example, patent document 1 discloses a refrigerator in which the area of the back heat insulating wall without the foam heat insulating material is larger than the area of the side heat insulating wall without the foam heat insulating material (claim 1 and the like). Prior art literature Patent literature Patent document 1 Japanese patent No. 6023941 Disclosure of Invention Problems to be solved by the invention However, the conventional technology of the refrigerator for reducing the filling amount of the thermal insulating foamed material, such as patent document 1, only contemplates the back surface of the thermal insulating case, and does not contemplate the side surface, top surface, and bottom surface of the thermal insulating case. Accordingly, the inventors focused on the fact that if a portion of a specific thermal insulating foamed material has a small influence on the strength of a refrigerator, the filling amount of the thermal insulating foamed material can be reduced even in the above portion of the case. Means for solving the problems In view of the above problems, a refrigerator according to the present invention includes a case having a storage compartment with a front opening, a foamed heat insulating material filled in a region between an inner case and an outer case, and a top-bottom dimension of the case being larger than a left-right dimension, wherein a left side surface and/or a right side surface of the case are configured to include a front-end heat insulating material continuously foamed and filled with the foamed heat insulating material in a top-bottom direction at a front end, and the refrigerator includes a region with a smaller thickness in which the foamed heat insulating material can flow than a surrounding region, and further includes another heat insulating material with a heat insulating property higher than that of the foamed heat insulating material. Drawings Fig. 1 is a front view showing an appearance of a refrigerator. Fig. 2 is a perspective view illustrating a structure of an insulation case in a refrigerator. Fig. 3 is a view showing filling sites required in strength by analysis for each filling amount of the thermal insulation foamed material. Fig. 4 is a rear perspective view of an inner case of the refrigerator. Fig. 5 is a top view of the refrigerator as viewed from above. Fig. 6 is a cross-sectional view of A-A of fig. 5. Fig. 7 is a cross-sectional view of B-B of fig. 5. Fig. 8 is a cross-sectional view of C-C of fig. 5. Fig. 9 is a sectional view of D-D of fig. 5. Fig. 10 is a view when the top of the refrigerator compartment is viewed from the front. Fig. 11 is a partially cut-away perspective view showing the vicinity of an in-box lamp at the top of a refrigerator compartment. Fig. 12 is a perspective view of the top of the refrigerator compartment excluding the outer case, the inner case, and the vacuum insulation material, when viewed from above. Fig. 13 is a partial sectional view of the top of the refrigerator compartment as viewed from the front. Fig. 14 is a view showing a vacuum insulation material, an in-box lamp, and wiring for the in-box lamp in a plan view when the top of the refrigerator compartment is viewed from above. Fig. 15 is a perspective view showing the structure of an insulating partition separating a lower freezer compartment from a vegetable compartment. Fig. 16 is a plan view of the heat insulating partition portion when viewed from above. Fig. 17 is a cross-sectional view A-A of fig. 16. Fig. 18 is a cross-sectional view of B-B of fig. 16. Fig. 19 is a cross-sectional view of C-C of fig. 16. Fig. 20 is a sectional view of D-D of fig. 16. Fig. 21 is a perspective view of the heat insulating partition portion when viewed from below. Fig. 22 is a plan view when viewed from above in a state of the heat insulating partition portion except the upper case. Fig. 23 is a partially enlarged perspective view of a broken line portion F in fig. 22. Fig. 24 is a diagram showing a brief structure of the top in embodiment 2. Fig. 25 is a schematic cross-sectional view of the heat insulating structure. Fig. 26 is a schematic view showing a case where strength of the shelf is ensured. Detailed Description Hereinafter, embodiments of the p