JP2018044682A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator including a vacuum heat insulation material constituted of a core material and an exterior cover material that can reduce cost while securing fluidity and heat insulation property of a foaming heat insulation material.SOLUTION: A refrigerator includes: a heat insulation wall constituted of an outer panel, an inner panel, a vacuum heat insulation material 4 and a foaming heat insulation material; and a buffer member 2 between the vacuum heat insulation material 4 and the outer panel or inner panel, where an end part 10a of an exterior cover material for covering a core material of the vacuum heat insulation material 4 is disposed while coming into contact with the buffer member 2 without being folded on a surface side of the core material.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a refrigerator provided with a vacuum heat insulating material.

In recent years, refrigerators equipped with vacuum heat insulating materials have become mainstream. (For example, see Patent Document 1)
Hereinafter, the conventional refrigerator will be described with reference to the drawings.

  FIG. 8 shows a refrigerator described in Patent Document 1. This refrigerator has a refrigerator room 101, a freezer room 102, a vegetable room 103, etc. in the refrigerator body 100, and a machine room 104 at the upper rear of the refrigerator body 100. A compressor 105 of a refrigeration cycle for cooling the refrigerator compartment 101, the freezer compartment 102, the vegetable compartment 103 and the like is provided in the machine room 104.

  Generally, the refrigerator main body 100 is configured by filling a foam heat insulating material 109 made of urethane foam or the like between an inner box 106 and an outer box 107, and further, a vacuum heat insulating material 108 between the inner box 106 and the outer box 107. To increase its thermal insulation. A vacuum heat insulating material 50 is also arranged between the machine room 104 and the inner plate 106 in the refrigerator main body 100 to enhance the heat insulating performance.

  FIG. 9 is a schematic diagram for explaining the assembly of the vacuum heat insulating material 50. The vacuum heat insulating material 50 is sealed by thermal welding or the like by inserting a core material 58 from an opening provided on one side surface of the jacket material 59 and evacuating the inside. A fin portion is formed on the outer peripheral portion of the jacket material 59 that is larger than the core material 58.

  The conventional vacuum heat insulating material 50 disposed between the machine room 104 and the inner plate 106 of the refrigerator main body 100 suppresses the outer dimensions, improves the adhesion to the wall surface constituting the heat insulating wall, and ensures the filling property of the foam heat insulating material 109. Therefore, the end portions 50 a, 50 b, and 50 c (fin portions) of the jacket material 59 that covers the core material 58 of the vacuum heat insulating material 50 are bent to the surface side of the core material 58.

JP 2013-50267 A

  The conventional vacuum heat insulating material 50 disposed between the machine room 104 and the inner plate 106 of the refrigerator main body 100 has the end portions 50a, 50b, 50c (fin portions) of the covering material 59 covering the core material 58 on the surface side. A work process for bending was required, which led to an increase in cost. This is because it was necessary to ensure the adhesiveness to the wall surface constituting the heat insulating wall and the filling property of the foam heat insulating material 109. However, recently, there are strict requirements for cost reduction for refrigerators, and it has been urged to reduce the cost of each component in the refrigerator body while ensuring energy saving. The present invention has been made in view of the above points, and is energy saving in the vacuum heat insulating material disposed between the machine room 104 and the inner plate 106 of the refrigerator main body 100 and adhesiveness to the wall surface constituting the heat insulating wall. The purpose of the present invention is to provide a refrigerator whose cost can be reduced and cost can be reduced while ensuring the filling property of the foam heat insulating material.

In order to achieve the above object, the refrigerator of the present invention includes a heat insulating wall composed of an outer plate, an inner plate, a vacuum heat insulating material, and a foam heat insulating material, and is buffered between the vacuum heat insulating material and the outer plate or the inner plate. The fin portion of the jacket material that includes the member and covers the core material of the vacuum heat insulating material is disposed in contact with the buffer member without being bent toward the surface side of the core material.

  This eliminates the need for a work process for bending the end portion (fin portion) of the jacket material covering the core material, which has been conventionally performed, to the surface side of the core material, thereby reducing costs.

  With the above configuration, the present invention eliminates the need for an operation step for bending the end portion (fin portion) of the outer covering material covering the core material to the surface side of the core material, and can achieve cost reduction while ensuring heat insulation performance. .

The expanded perspective view which shows the machine room part of the refrigerator in Embodiment 1 of this invention Sectional drawing which shows the machine room part of the refrigerator in the embodiment (AA sectional drawing of FIG. 1) (A) The exploded perspective view of the machine room case unit of the refrigerator in the embodiment, (b) (Other exploded perspective view of the machine room case unit of the refrigerator in the embodiment The perspective view of the vacuum heat insulating material of the refrigerator in the same embodiment, (A) The exploded perspective view of the buffer member and vacuum heat insulating material of the refrigerator in the same embodiment, (b) The perspective view which shows the incorporation state of the buffer member and vacuum heat insulating material of the refrigerator in the same embodiment The perspective view which shows the assembly state of the machine room case unit of the refrigerator in the embodiment Explanatory drawing which shows the advancing direction of the foam heat insulating material of the refrigerator in the same embodiment (A) Transverse sectional view of a conventional refrigerator, (b) Front sectional view of the refrigerator Schematic explaining assembly of vacuum insulation material of conventional refrigerator

  The invention according to claim 1 includes a heat insulating wall composed of an outer plate, an inner plate, a vacuum heat insulating material, and a foam heat insulating material, and includes a buffer member between the vacuum heat insulating material and the outer plate or the inner plate, The fin part of the jacket material covering the core of the vacuum heat insulating material is arranged in contact with the buffer member without being bent on the surface side of the core material, thereby providing the fluidity and heat insulating property of the foamed heat insulating material equivalent to the conventional technology. Costs can be reduced with collateralization.

  The invention described in claim 2 is characterized in that, in the invention described in claim 1, the surface of the buffer member in contact with the vacuum heat insulating material has a planar shape, and the surface in contact with the outer plate or the inner plate has an uneven shape. A vacuum heat insulating material can also be arrange | positioned through a buffer member also to the wall surface which has a shape.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the fin portion in which the opening portion of the jacket material into which the core material of the vacuum heat insulating material is inserted is bent to the surface side of the core material. By forming, the largest fin part with which the opening part was sealed reliably does not inhibit the fluidity | liquidity of a foam heat insulating material, and can ensure heat insulation performance.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the shock-absorbing member is a pre-formed heat-insulating member, and the shock-absorbing member and the vacuum heat-insulating material are placed before filling the foam heat-insulating material. It can be integrated and incorporated into the refrigerator, and the productivity of the refrigerator can be increased.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the assembly member in which the vacuum heat insulating material is disposed in the buffer member is disposed in the outer plate or the inner plate. Thereby, productivity of a refrigerator can be raised more.

  According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, the vacuum heat insulating material is configured by a plurality of flat surfaces having a bent portion, whereby the wall surface having the bent portion is provided. Can be handled with a single vacuum heat insulating material, and the cost can be reduced while improving the heat insulating performance.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the vacuum heat insulating material, the buffer member, and the outer plate or the inner plate are adhesive members, and are fixed before the foam heat insulating material is injected. By doing so, the assembled state of the unitized heat insulating member can be reliably maintained until the foam heat insulating material is injected.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is an enlarged perspective view showing a machine room portion of a refrigerator according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view showing a machine room portion of the refrigerator according to the embodiment (cross-sectional view taken along line AA in FIG. 1). 3 (a) is an exploded perspective view of the machine room case unit of the refrigerator in the embodiment, FIG. 3 (b) is an exploded perspective view of the machine room case unit of the refrigerator in the embodiment, and FIG. The perspective view of the vacuum heat insulating material of the refrigerator in the form of FIG. 5, Fig.5 (a) is a structure exploded perspective view of the buffer member and vacuum heat insulating material of the refrigerator in the same embodiment, FIG.5 (b) is the refrigerator of the same embodiment. FIG. 6 is a perspective view showing an assembled state of the shock absorber and the vacuum heat insulating material, FIG. 6 is a perspective view showing an adhesive material assembled state of the machine room case unit of the refrigerator in the embodiment, and FIG. Explanatory drawing showing the direction of travel of foam insulation A.

  In addition, about the same structure as the past, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  A plurality of storage rooms such as a refrigerator compartment 101, a freezer compartment 102, and a vegetable compartment 103 are provided inside the refrigerator main body 100. The refrigerator body 100 is provided with a duct for supplying cold air to the refrigerator compartment 101, the freezer compartment 102, the vegetable compartment 103, etc., and a duct member for supplying cold air to the refrigerator compartment 101 is provided on the inner surface of the back part of the inner box 106. The upper part is fixed by a retaining screw, and the retaining screw protrudes from a portion facing a vertical wall surface of the machine room, which will be described later, to form an uneven shape on the inner box side.

  Further, in FIG. 1, an L-shaped machine room case 1 is fitted and mounted on the upper rear side of the outer box 107 constituting the refrigerator main body 100, and the machine room 104 is formed in a concave shape. The machine room 104 includes cooling functional parts such as the compressor 105 and the condenser 3. The upper part and the back part are covered with a machine room cover, and the machine room cover is provided with an intake hole and an exhaust hole. Then, a vacuum heat insulating material 4 is installed between the vertical and horizontal walls of the machine room case 1, which is also a part of the outer box 107 of the machine room 104, and the vertical and horizontal walls of the inner box 106 facing the machine room case 1. The heat insulation structure is filled.

  FIG. 2 is a diagram showing the position of the vacuum heat insulating material 4. The presence of the vacuum heat insulating material 4 can strongly insulate the radiant heat from the heat generating parts such as the compressor 105 installed in the machine room 104 of the refrigerator main body 100, and improve the heat insulating property of the entire refrigerator main body to improve the energy saving performance. be able to. In addition, by providing the vacuum heat insulating material 4, the wall thickness between the machine room 104 and the storage room can be made thinner than before, and the internal volume in the refrigerator body can be expanded.

In FIG. 3, the structure of the machine room case 1, the buffer member 2, and the vacuum heat insulating material 4 is shown. In this refrigerator, since the vacuum heat insulating material 4 is provided on the vertical and horizontal walls between the machine room 104 and the refrigerator room 101, in addition to the heat insulation by the foam heat insulating material 109, the heat insulating action by the vacuum heat insulating material 4 works and the compression is performed. The heat from the machine 105 and the condenser 3 can be strongly insulated.

  That is, the radiant heat from the heat generating components such as the compressor 105 can be strongly insulated by the vacuum heat insulating material 4, and the heat insulating property of the entire refrigerator main body 100 can be greatly improved. As a result, the temperature rise in the refrigerating room 101 due to heat intrusion from the machine room 104 can be significantly reduced, and the operation of the compressor 105, that is, the cooling frequency can be suppressed correspondingly, and the energy saving performance can be improved. .

  Moreover, it has the several uneven | corrugated | grooved part 5 in the foam heat insulating material 109 side, and the intensity | strength of the machine room case 1 is ensured. The buffer member 2 disposed in contact with the machine room case 1 has a flat surface 6 on the surface in contact with the vacuum heat insulating material 4, and the surface in contact with the machine room case 1 has an uneven shape corresponding to the uneven portion 5. The vacuum heat insulating material 4 is disposed on the flat surface portion 6 side of the buffer member 2.

  In particular, in this embodiment, the vacuum heat insulating material 4 is formed to be almost full in the vertical and horizontal widths of the machine room 104, and the size of the compressor 105 and the condenser 3, that is, the heat generating component projection area portion is projected. Since the area portion is made larger, the heat insulation effect is high.

  That is, the vacuum heat insulating material 4 first insulates radiant heat from all the heat generating components in the machine room 104 including the compressor 105 and the condenser 3.

  And the said vacuum heat insulating material 4 exhibits the heat insulation effect effectively, and is insulated, without being influenced by the radiant heat from heat-emitting components, such as the compressor 105. FIG. In addition, since the vacuum heat insulating material 4 is formed to be almost full in the vertical and horizontal widths of the machine room 104, not only radiant heat from the heat generating parts such as the compressor 105 but also relatively high temperature air existing in the machine room, that is, The heat of air having a relatively high temperature after cooling the heat generating components such as the compressor 105 and the condenser 3 is also insulated, and energy saving can be further improved.

  FIG. 4 illustrates the core material 8 of the vacuum heat insulating material 4, the outer cover material 9, and the end portions 10 a to 10 c of the outer cover material in the vacuum heat insulating material 4. In this invention, it was set as the structure which puts the fin part 10a of the jacket material of the vacuum heat insulating material 4 only on the bank part 7 of the buffer member 2 in the machine room 104 provided in the refrigerator main body.

  Moreover, as shown in FIG. 5, it is set as the structure which puts the fin part 10a of the jacket material of the vacuum heat insulating material 4 only on the bank part 7 of the buffer member 2 in the machine room 104 provided in the refrigerator main body. Since the material of the fin part 10 of the jacket material of the vacuum heat insulating material 4 is aluminum, it can be said that the heat transfer coefficient is higher than that of a general member. Therefore, it is necessary to consider the influence of radiant heat from the heat generating parts such as the compressor 105 installed in the machine room 104 of the refrigerator main body. In the present embodiment, since only the fin portion 10a is mounted on the buffer member 2 having heat insulating performance, all the fin portions 10a of the present fin portion 10a are considered in consideration of the traveling direction of radiant heat from the heat generating components such as the compressor 105. The portion can be accommodated in the bank portion 7 of the buffer member 2. Thereby, the heat insulation performance between the machine room 104 of the refrigerator main body and the inner board 106 becomes equivalent to the past, and energy-saving property can be ensured.

  In addition, if the fin part 10b of the jacket material of the vacuum heat insulating material 4 and the fin part 10c of the jacket material of the vacuum heat insulating material 4 are configured in the same manner as the fin part 10a, the cushion member 2 will protrude greatly. The heat insulation performance may be deteriorated due to the influence of radiant heat from the heat generating parts such as the compressor 105.

In the present embodiment, the technical feature is that only the fin portion that can be accommodated in the bank portion 7 of the buffer member 2 is disposed in contact with the buffer member without being bent to the surface side of the core material. .

  In addition, as shown in FIG. 6, the machine room case 1, the buffer member 2, the vacuum heat insulating material 4, and the fin portion 10 a of the jacket material are fixed by a single adhesive member 12. Thereby, compared with the past, the contact area of the adhesive member 12 that is in contact with the vacuum heat insulating material 4 is widened, and the vacuum heat insulating material 4 and the buffer member 2 can be more firmly fixed.

  Further, as shown in FIG. 7, in consideration of the advancing direction 13 of the foam heat insulating material 109, bonding is performed in order to prevent warping of the fin portion 10a of the jacket material having a shape that hinders the filling of the foam heat insulating material 109. The vacuum heat insulating material 4 and the machine room case 1 are fixed using two members 12. Thereby, the filling of the foam heat insulating material 109 is not inhibited, and the heat insulating performance can be maintained.

  Further, the machine room 104 constituted by the machine room case 1, the buffer member 2, the vacuum heat insulating material 4, the outer cover material fin portion 10 a and the adhesive member 12 is provided with a buffer portion so as not to impede the filling property of the foam heat insulating material 109. It is set as the structure along a convex part.

  Thereby, it is possible to prevent the vacuum heat insulating material 4 from being displaced and damaged by the foam heat insulating material 109 filled between the outer box and the inner box. Furthermore, the foam heat insulating material that flows through the flat portion of the vacuum heat insulating material flows smoothly. It is possible to prevent the generation of voids due to a decrease in material fluidity that is likely to occur when there is a step between the flat part of the vacuum heat insulating material and the annular convex part. The heat insulation quality can be secured and the heat insulation quality can be stabilized.

  Further, a flat vacuum heat insulating material 4 and a fin portion 10a of the outer cover material are arranged on the bank portion 7 which is an uneven shape of the buffer member 2 so as to create a gap between the buffer member 2 and the vacuum heat insulating material 4.

  As a result, the possibility of the foam heat insulating material 109 entering between the buffer member 2 and the vacuum heat insulating material 4 is reduced, the displacement of the vacuum heat insulating material due to the filling of the foam heat insulating material can be prevented, and the heat insulating performance can be improved with higher quality. It was possible to demonstrate. In the conventional configuration, there is a gap between the cushioning member and the vacuum heat insulating material on the bottom surface of the part composed of the buffer member and the vacuum heat insulating material, and the foam heat insulating material 109 may enter from the gap. In this embodiment, since the fin portion 10a is arranged so as to cover the upper portion of the gap 14 between the buffer member and the vacuum heat insulating material, the foam heat insulating material 109 is prevented from entering.

  As described above, it is possible to reduce the cost by eliminating the work process of bending the end portion 10a (fin portion) of the covering material 9 covering the core material 8 of the vacuum heat insulating material 4 to the surface side of the core material 8.

  As mentioned above, although the refrigerator which concerns on this invention has been demonstrated using the said embodiment, this invention is not limited to this, A various change is possible within the range which achieves the objective of this invention. Needless to say.

  In the present embodiment, the fin portion 10 of the jacket material 9 that covers the core material 8 of the vacuum heat insulating material 4 is disposed on the buffer member 2, but the jacket that covers the core material 8 of the vacuum heat insulating material 4 is arranged. It is good also as a shape which fits the fin part 10 of the material 9 inside the buffer member 2. As shown in FIG. In this case, the fixing work of the fin portion 10 by the adhesive member is not necessary, and the cost can be further reduced.

  As described above, the refrigerator according to the present invention eliminates the need for a work process for bending the end portion (fin portion) of the jacket material covering the core material to the surface side of the core material, and reduces costs while ensuring heat insulation performance. Therefore, the present invention can be applied to any heat insulating equipment provided with a vacuum heat insulating material.

DESCRIPTION OF SYMBOLS 1 Machine room case 2 Buffer member 3 Condenser 4 Vacuum heat insulating material 5 Uneven part 6 Plane part 7 Bank part 8 Core material 9 Outer material 10a Short edge part (fin part) of outer material
10b Long side edge (fin part) of jacket material
10c Vacuum drawing side end (fin part) of jacket material
DESCRIPTION OF SYMBOLS 11, 12 Adhesive member 13 Advancing direction 100 Refrigerator main body 101 Refrigeration room 102 Freezer room 103 Vegetable room 104 Machine room 105 Compressor 106 Inner box (inner plate)
107 Outer box (outer plate)
108 Vacuum insulation material 109 Foam insulation material

Claims (7)

A heat insulating wall composed of an outer plate, an inner plate, a vacuum heat insulating material, and a foam heat insulating material is provided, a buffer member is provided between the vacuum heat insulating material and the outer plate or the inner plate, and an outer covering the core of the vacuum heat insulating material. A refrigerator in which the fin portion of the workpiece is disposed in contact with the buffer member without being bent to the surface side of the core material. The refrigerator according to claim 1, wherein a surface of the buffer member that contacts the vacuum heat insulating material has a planar shape, and a surface that contacts the outer plate or the inner plate has an uneven shape. The refrigerator according to claim 1 or 2, wherein a fin portion in which an opening portion of an outer cover material into which a core material of a vacuum heat insulating material is inserted is sealed is formed on a surface side of the core material. The refrigerator according to any one of claims 1 to 3, wherein the buffer member is a heat insulating member formed in advance. The refrigerator as described in any one of Claim 1 to 4 with which the assembly member by which the vacuum heat insulating material was arrange | positioned by the buffer member was arrange | positioned by the outer plate or the inner plate. The refrigerator according to any one of claims 1 to 5, wherein the vacuum heat insulating material includes a plurality of flat surfaces having bent portions. The refrigerator according to any one of claims 1 to 6, wherein the vacuum heat insulating material, the buffer member, and the outer plate or the inner plate are adhesive members and are fixed before the foam heat insulating material is injected.

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