JP2021175938A - refrigerator - Google Patents

Abstract

To provide a refrigerator comprising doors having structures protecting a vacuum heat insulation material from solid and movable members such as hinges.SOLUTION: A refrigerator is constituted of a heat insulation material filled between an inner box and an outer box and includes a heat insulation box body open at a front surface and a plurality of hinged double type and drawer type doors closing an opening of the front surface of the heat insulation box body. A door 21 comprises: a flat and box-shaped outer plate 31 having an open side surface at a refrigerator indoor side; a flat and box-shaped inner plate 32 opening ahead of the refrigerator and being fixed to the outer plate 31 in a state in which individual opening sides face each other; and a vacuum heat insulation material 35 disposed so as to be interposed by whole surfaces of facing surfaces thereof between the outer plate 31 and the inner plate 32. The outer plate 31 and the inner plate 32 have hinge portions 50 at upper and lower portions for mounting the outer plate 31 and the inner plate 32 to the heat insulation box body in a rotatable manner. The vacuum heat insulation material 35 in the door 21 is formed into a shape in which corner portions adjacent to the hinge portions 50 are chamfered.SELECTED DRAWING: Figure 9

Description

Embodiments of the present invention relate to refrigerators.

The refrigerator is configured by sandwiching a heat insulating material in the space between the outer box and the inner box constituting the heat insulating box body which is the main body of the refrigerator in order to improve the heat insulating performance and save energy. Further, the door that seals the opening portion of the heat insulating box body of the refrigerator is also configured by sandwiching a heat insulating material between the outer plate and the inner plate. Most refrigerators use urethane foam as a heat insulating material, but in recent years, vacuum heat insulating materials have been used in place of urethane foam. For example, Patent Document 1 proposes a technique in which urethane foam and a vacuum heat insulating material are used in combination for a refrigerator door.

Japanese Unexamined Patent Publication No. 2006-90649

The vacuum heat insulating material has a structure in which the core material is vacuum-packed with a thin outer packaging film. This vacuum heat insulating material is superior to urethane foam in heat insulating performance, but the outer packaging film is easily scratched, and if it is scratched and damaged, the heat insulating performance is significantly reduced. When the vacuum heat insulating material is used for a heat insulating body such as a rotating door of a refrigerator, the outer capsule film may be damaged if the vacuum heat insulating material is placed at a position where it comes into contact with a protruding portion such as a hinge. If the size of the vacuum heat insulating material is reduced so that it does not interfere with the protruding parts such as hinges, the space without the heat insulating material increases inside the heat insulating body. It is necessary to increase the effect.

The present invention has been made in view of such problems of the prior art, and an object of the present invention is to provide a refrigerator provided with a heat insulating body having a structure for protecting the vacuum heat insulating material from protrusions such as hinges. There is.

An embodiment is a refrigerator having a heat insulating body provided with a heat insulating material between the inner box and the outer box, and the heat insulating body has a protruding portion protruding toward the heat insulating body and the protruding portion. A polygonal vacuum heat insulating material in which an inclined portion is provided in advance in the projecting direction of the above, and a heat insulating material different from the vacuum heat insulating material arranged between the protruding portion and the inclined portion, and the protruding portion is provided. Is located in a region pseudo-formed by the inclined portion, the extension line of one side of the vacuum heat insulating material, and the extension line of the other side.
Another embodiment is a refrigerator having a heat insulating material provided with a heat insulating material between the inner box and the outer box, wherein the heat insulating body has a protrusion protruding toward the heat insulating body and the heat insulating material. It is located in a region pseudo-formed by a polygonal vacuum heat insulating material in which an inclined portion is provided in advance on the protruding extension line of the protruding portion, and an extension line of one side and an extension line of the other side of the vacuum heat insulating material. It is characterized by including a heat insulating material different from the vacuum heat insulating material, which is arranged between the protruding portion and the inclined portion.

It is a perspective view of the refrigerator in 1st to 3rd Embodiment. It is a perspective view of the state which the door of the refrigerator is removed. It is sectional drawing of the 2nd freezing room door in 1st Embodiment. It is an exploded perspective view of the 2nd freezing room door. It is a perspective view which looked at the state which attached the vacuum heat insulating material to the 2nd freezing room door from the rear of the outer panel. It is a top view of the state which the outer film of the vacuum heat insulating material is stretched. It is a top view of the finished state of the vacuum heat insulating material. It is sectional drawing of the edge part of the said vacuum heat insulating material. It is a perspective view of the first door of a refrigerator compartment. It is sectional drawing of the 1st door of a refrigerating room. It is a perspective view of the hinge receiving plate. It is the enlarged perspective view of the corner part of the 1st door of a refrigerating room from which the outer panel was removed. It is an enlarged view of the corner part of the first door of the refrigerating room with the outer panel removed. It is an enlarged view of the corner part of the 1st door of the refrigerating room which removed the outer panel in 2nd Embodiment.

Hereinafter, embodiments will be described in detail with reference to the figures.

(First Embodiment)
As shown in FIGS. 1 and 2, the refrigerator 1 in the present embodiment has a heat insulating box 3 having an opening at the front and divided into a plurality of rooms inside, and a plurality of refrigerators 1 having an opening on the front side of each room. Doors 21 to 26 are provided.

The heat insulating box body 3 is configured by sandwiching a vacuum heat insulating material 35 called VIP (Vacuum Insulation Panel) between the inner box and the outer box as a heat insulating material on almost the entire surface of the facing surfaces thereof. In FIG. 2, the vacuum heat insulating material 35 of the right side plate of the refrigerator 1 is transmitted through the refrigerator 1 for explanation, but the vacuum heat insulating material 35 is also arranged on the top plate, the bottom plate, the left side plate, and the back plate. There is.

The heat insulating box 3 is divided into five rooms, that is, a refrigerating room 11, a vegetable room 12, a side-by-side ice making room 13, a first freezing room 14, and a second freezing room 15 in this order from the top. A double door type refrigerating room first door 21 and a refrigerating room second door 22 are attached to the opening on the front side of the refrigerating room 11. Further, the opening on the front side of the vegetable compartment 12, the ice making chamber 13, the first freezing chamber 14, and the second freezing chamber 15 has a drawer-type vegetable chamber door 23, an ice making chamber door 24, and a first freezing chamber door 25, respectively. The second freezer door 26 is attached.

First, for the purpose of explaining the structure of the drawer type door, the second freezing room door 26 will be described as a representative. As shown in FIGS. 3 and 4, the second freezing chamber door 26 includes an outer plate 31, an inner plate 32, a throat member 34, a vacuum heat insulating material 35, a gasket 37, and a handle 39.

The vacuum heat insulating material 35 is sandwiched between the outer plate 31 and the inner plate 32 of the second freezing chamber door 26, and the back surface of the inner plate 32 (the surface located inside the second freezing chamber door 26). A gasket 37 is fitted in the vicinity of the outer periphery, and a throat member 34 is fixed to the back surface of the inner plate 32. A handle 39 is attached to the front surface of the outer plate 31.

As shown in FIG. 5, the outer plate 31 has a substantially box shape, and a plurality of screw receiving protrusions 31a that rise rearward are formed inside the corners where the front plate and the side plates intersect. ing. Further, the protruding portion 31a is formed with a screw hole 31b into which a screw is screwed.

As shown in FIGS. 3 and 4, the inner plate 32 has a substantially box shape, and includes a gasket receiving portion 32a into which the gasket 37 is fitted on the back surface side near the outer peripheral edge. The gasket receiving portion 32a is a ridge that is provided with a groove that opens to the rear (inside the refrigerator chamber) and projects forward, and is formed in the entire vicinity of the outer peripheral edge of the inner plate 32. Further, a screw hole 32b is formed on the front end surface of the gasket receiving portion 32a at a position facing the screw hole 31b of the protruding portion 31a of the outer plate 31 when mounted on the outer plate 31. In FIG. 3, the gasket receiving portion 32a has a substantially rectangular cross section, but if it has a shape into which the insertion portion 37b of the gasket 37 described later can be inserted, it may have another shape such as a U shape. May be good.

As shown in FIGS. 6 to 8, the vacuum heat insulating material 35 has a structure in which an inorganic core material 101 such as glass wool is vacuum-packed with an outer film 105, and the outer film 105 is made of protrusions, screws, metal or hard plastic. It may be torn if it touches burrs or edges. When the outer film 105 is torn, the vacuum state is released, so that the heat insulating effect is significantly reduced. As shown in FIG. 5, the outer plate 31 is formed with a plurality of protrusions 31a for receiving screws. Therefore, if the vacuum heat insulating material 35 is arranged without any protection, the outer plate 31 may be formed on the protrusions 31a or the inner plate. The outer capsule film 105 may come into contact with the screw 41 for fixing the 32 to the outer plate 31, or the burr generated when the screw 41 is screwed into the screw hole 31b of the protrusion 31a, and may be torn. As the outer packaging film 105, a structure in which an aluminum foil and a resin film are sandwiched, or a film in which the surface of the resin film is laminated by aluminum vapor deposition or the like can be used.

Therefore, in order to protect the outer packaging film 105, the vacuum heat insulating material 35 in the present embodiment is attached with an elastic member 36 wound around the outer peripheral portion. The elastic member 36 is a material having a heat insulating effect, and for example, a soft tape such as a sponge tape can be used. By covering the outer peripheral portion of the vacuum heat insulating material 35 with the elastic member 36 in this way, the outer packaging film 105 does not come into direct contact with the protruding portion 31a or the like of the outer plate 31, so that the vacuum heat insulating material 35 is prevented from being damaged. can.

The vacuum heat insulating material 35 is arranged on substantially the entire surface of the outer plate 31 and the inner facing surfaces of the inner plate 32, and is adhered to the back surface of the outer plate 31 and the front surface of the inner plate 32 with an adhesive. .. Further, the inner plate 32 is fixed to the outer plate 31 by a screw 41 in a state where the front end surface (bottom of the groove) of the gasket receiving portion 32a of the inner plate 32 is close to the back end surface of the protruding portion 31a of the outer plate 31. Has been done.

The gasket 37 is a frame body having a hollow sealed air cushion portion 37a, and has an arrowhead-shaped insertion portion 37b. Further, the gasket 37 has a magnet 37c for magnetically adhering to the peripheral surface of the opening of the heat insulating box 3 on the rear surface of the air cushion portion 37a. The gasket 37 is a flexible material, and is attached to the inner plate 32 by pushing the insertion portion 37b into the gasket receiving portion 32a of the inner plate 32 by utilizing the flexibility.

The throat member 34 has a rectangular frame shape, and is attached to the inner plate 32 by fitting with screws, claws, or slides (not shown). The throat member 34 is a member for preventing leakage of cold air in the heat insulating box 3 by entering the inside of the heat insulating box 3 and overlapping the inner surface of the heat insulating box 3 when the second freezing chamber door 26 is closed. Is. The inner air side of the throat member 34 is also pre-filled with a heat insulating material 43 such as Styrofoam.

Next, in order to explain the structure of the Kannon type door, the refrigerating room first door 21 will be described as a representative. The members common to the drawer type door will be described with a common reference numeral. As shown in FIGS. 9 and 10, the refrigerating chamber first door 21 is located between the outer plate 31, the inner plate 32, the throat member 34, the gasket fitting member 45, and the refrigerating chamber second door 22. A rotating member 33 that closes the gap, a vacuum heat insulating material 35, a gasket 37, a handle 39, and a hinge receiving plate 55 are provided.

The outer plate 31 and the inner plate 32 each have a flat box shape. The inner plate 32 is fixed to the outer plate 31 by fitting inside the side wall of the outer plate 31. Further, inside the outer plate 31 and the inner plate 32, the vacuum heat insulating material 35 is arranged over almost the entire surface of the facing surface thereof. A throat member 34 is fixed to the inner surface of the inner plate 32 on the inner side of the refrigerator 1 by adhesion or the like. A gasket fitting member 45 into which the gasket 37 is fitted is fixed to the outer plate 31 and the inner plate 32 by adhesion or the like on the outer side of the throat member 34 (excluding the rotating member 33 side). Further, in the vicinity of the end of the inner plate 32 on the side of the second door 22 of the refrigerating chamber, a rotating member 33 that closes the gap between the first door 21 of the refrigerating chamber and the second door 22 of the refrigerating chamber is rotatably connected. ing.

The refrigerating chamber first door 21 having such a configuration is provided with a hinge portion 50 near one side end of the upper surface and the lower surface. The hinge portion 50 is formed with a shaft hole 51 through which the shaft rod 19 of the heat insulating box 3 penetrates, as shown in FIG. Further, a hinge receiving plate 55 made of a highly rigid material such as metal is arranged inside the hinge portion 50, that is, near the inner corner portions of the outer plate 31 and the inner plate 32.

The hinge receiving plate 55 is a member that is pivotally attached to the shaft rod 19 when the refrigerating chamber first door 21 is rotatably attached to the heat insulating box body 3. As shown in FIG. 11, the hinge receiving plate 55 includes an L-shaped flat plate 55a and a vertical plate 55b that rises perpendicularly to the flat plate 55a from one end of the flat plate 55a. The vertical plate 55b is formed with a shaft hole 55c through which the shaft rod 19 penetrates.

Then, as shown in FIG. 12, the vacuum heat insulating material 35 in the refrigerating chamber first door 21 has a substantially rectangular parallelepiped shape, and the corner portions located in the vicinity of the hinge portion 50 of the outer plate 31 and the inner plate 32 are cut off. , The shape is such that two adjacent corners are chamfered. Further, the vacuum heat insulating material 35 has an outer dimension slightly smaller than the inner dimension of the inner plate 32 so that it can be inserted inside the inner plate 32 and the space inside the inner plate 32 can be filled as much as possible. It is said that. By forming the vacuum heat insulating material 35 in this way, when the vacuum heat insulating material 35 is inserted inside the inner plate 32, the vacuum heat insulating material 35 also enters between the upper and lower hinge portions 50, and the inside of the inner plate 32. In, the space where the heat insulating material does not exist can be almost eliminated.

Further, in the refrigerating chamber first door 21, the vacuum heat insulating material 35 is formed larger than the outer dimensions of the throat member 34, and is arranged on the back surface of the surface to which the throat member 34 is fixed, at least over a wider area than the throat member 34. Has been done. That is, the throat member 34 and the vacuum heat insulating material 35 are superposed at the position near the outer periphery of the vacuum heat insulating material 35.

Further, as shown in FIG. 13, the vacuum heat insulating material 35 is adhered to the outer plate 31 and the inner plate 32 with an adhesive or the like. A part of the flat plate 55a of the hinge receiving plate 55 is inserted between the inner plate 32 and the vacuum heat insulating material 35, and is adhesively fixed to the inner plate 32 together with the vacuum heat insulating material 35.

As described above, the refrigerating chamber first door 21 in the present embodiment has a shaft when the refrigerating chamber first door 21 is attached to the heat insulating box 3 by chamfering a set of adjacent corners of the vacuum heat insulating material 35. It is possible to prevent the rod 19 from coming into contact with the vacuum heat insulating material 35). Therefore, it is possible to prevent the outer film 105 of the vacuum heat insulating material 35 from being damaged by the shaft rod 19. Further, by chamfering a set of adjacent corners of the vacuum heat insulating material 35, the vacuum heat insulating material 35 can be arranged between the upper and lower hinge portions 50 of the first door 21 of the refrigerating chamber, so that the heat insulating effect can be enhanced. Can be done.

Further, in the refrigerating chamber first door 21, the vacuum heat insulating material 35 is formed larger than the outer dimension of the throat member 34 and is arranged over a wider area than the area surrounded by the throat member 34, so that the refrigerating material 35 is refrigerated. The heat insulating effect in the room can be enhanced.

Further, since the hinge receiving plate 55 is adhesively fixed to the inner plate 32 together with the vacuum heat insulating material 35, the work process at the time of manufacturing can be reduced.

The second door 22 of the refrigerator compartment has the same configuration as the first door 21 of the refrigerator compartment, and the same effect can be obtained. Further, the vacuum heat insulating material 35 in the refrigerating room first door 21 and the refrigerating room second door 22 may also have a configuration in which a soft tape is wrapped around the vacuum heat insulating material 35.

(Second Embodiment)
Next, the second embodiment will be described. In the following embodiments as well, common parts will be described using a common reference numeral. As shown in FIG. 14, in the refrigerating chamber first door 21 of the present embodiment, another heat insulating material 61 is placed in the chamfered portion of the vacuum heat insulating material 35 in the above embodiment, that is, the space located inside the hinge portion 50. It is characterized by being arranged. As the other heat insulating material 61, urethane foam, styrene foam, sponge material, soft tape, or the like can be used.

By arranging the other heat insulating material 61 so as to fill the chamfered portion of the vacuum heat insulating material 35 in this way, the heat insulating effect can be further enhanced.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

1 Refrigerator 3 Insulated box 11 Refrigerator room 12 Vegetable room 13 Ice-making room 14 First freezer room 15 Second freezer room 21 Refrigerator room first door 22 Refrigerator room second door 23 Vegetable room door 24 Ice-making room door 25 First freezer room Door 26 Second freezer door 31 Outer plate 31a Protruding part 31b Screw hole 32 Inner plate 32a Gasket receiving part 32b Screw hole 32c Protective wall 33 Rotating member 34 Throat member 35 Vacuum heat insulating material 36 Elastic member 37 Gasket 37a Air cushion part 37b Insert 37c Magnet 39 Handle 40 Adhesive 41 Screw 43 Insulation material 45 Gasket fitting member 50 Hing part 51 Shaft hole 55 Hinge receiving plate 55a Flat plate 55b Vertical plate 55c Shaft hole 61 Insulation material 101 Core material 105 Outer film

Claims (3)

A refrigerator having a heat insulating material with a heat insulating material between the inner box and the outer box.
The heat insulating body is
A protrusion that protrudes toward the heat insulating body,
A polygonal vacuum heat insulating material in which an inclined portion is provided in advance in the protruding direction of the protruding portion,
A heat insulating material different from the vacuum heat insulating material arranged between the protruding portion and the inclined portion,
With
The refrigerator is characterized in that the protruding portion is located in a region pseudo-formed by the inclined portion, an extension line of one side of the vacuum heat insulating material, and an extension line of the other side. A refrigerator having a heat insulating material with a heat insulating material between the inner box and the outer box.
The heat insulating body is
A protrusion that protrudes toward the heat insulating body,
A polygonal vacuum heat insulating material in which an inclined portion is provided in advance on the protruding extension line of the protruding portion, and
A heat insulating material different from the vacuum heat insulating material, which is arranged between the protruding portion and the inclined portion located in a region pseudo-formed by the extension line of one side of the vacuum heat insulating material and the extension line of the other side. Material and
A refrigerator characterized by being equipped with. The heat insulating body according to claim 1 or 2, wherein the heat insulating body constitutes a heat insulating box having a front opening and a door closing the opening of the heat insulating box in the refrigerator. refrigerator.

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