JP6081064B2 - refrigerator - Google Patents

Description

  Embodiments of the present invention relate to a refrigerator.

  In order to improve the heat insulating performance and save energy, the refrigerator is configured by sandwiching a heat insulating material in a space between an outer box and an inner box that constitute a heat insulating box body serving as a refrigerator main body. Moreover, the door which seals the opening part of the heat insulation box of a refrigerator is also comprised by inserting a heat insulating material between an outer plate and an inner plate. Many refrigerators use urethane foam as a heat insulating material, but in recent years, vacuum heat insulating materials have been used instead 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 on a refrigerator door.

JP 2006-90649 A

  The vacuum heat insulating material is configured such that the core material is vacuum packed with a thin outer packaging film. This vacuum heat insulating material is superior in heat insulating performance to foamed urethane, but the outer packaging film is easily damaged, and when it is damaged due to scratches, the heat insulating performance is remarkably reduced. When a vacuum heat insulating material is used in a revolving door of a refrigerator, the outer packaging film may be damaged if the vacuum heat insulating material is disposed at a position that is as hard as a hinge and touches a moving object. When the size is reduced so that the vacuum heat insulating material does not interfere with the hinge or the like, the space without the heat insulating material increases inside the door. Therefore, it is necessary to enhance the heat insulating effect by using urethane foam or the like as in Patent Document 1 above. is there.

  The present invention has been made in view of such problems of the prior art, and provides a refrigerator including a door having a structure for protecting a vacuum heat insulating material from a hard and moving member such as a hinge. It is an object.

In the embodiment, the heat insulating material is filled between the inner box and the outer box, the heat insulating box body having an opening at the front, and a plurality of kannon and drawer type doors that close the opening at the front of the heat insulating box. And the door is a flat box-shaped outer plate that opens on the side of the refrigerator interior side, and a flat box-shaped outer plate that opens to the front of the refrigerator. An inner plate fixed in a state of being opposed to each other, and a vacuum heat insulating material disposed between the outer plate and the inner plate so as to be sandwiched between the entire surfaces of the opposing surfaces, the outer plate and the inner plate, A hinge part for pivotally mounting to the heat insulation box is provided in the vicinity of the upper and lower corners, and the vacuum heat insulating material is chamfered by chamfering and chamfering the corner part close to the hinge part. A heat insulating material different from the vacuum heat insulating material to be filled is arranged .

It is a perspective view of the refrigerator in the 1st-3rd embodiment. It is a perspective view of the state which removed the door of the said refrigerator. It is a cross-sectional view of the second freezer compartment door in the first embodiment. It is a disassembled perspective view of the said 2nd freezer compartment door. It is the perspective view which looked at the state which equipped the said 2nd freezer compartment door with the vacuum heat insulating material from the back of an outer plate. It is a top view of the state which extended the envelope film of the vacuum heat insulating material. It is a top view of the finished state of the said 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 refrigerator compartment first door. It is sectional drawing of the refrigerator compartment first door. It is a perspective view of a hinge receiving plate. It is an expansion perspective view of the corner | angular part of the refrigerator compartment 1st door which removed the outer plate | board. It is an enlarged view of the corner | angular part of the refrigerator compartment 1st door which removed the outer plate | board. It is an enlarged view of the corner | angular part of the refrigerator compartment 1st door which removed the outer plate | board in 2nd Embodiment.

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

(First embodiment)
As shown in FIGS. 1 and 2, the refrigerator 1 in the present embodiment has a heat insulating box 3 whose front is an opening and the inside is partitioned into a plurality of rooms, and a plurality of openings that seal the front opening of each room. Doors 21-26.

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

  The heat insulation box 3 is partitioned into five rooms of a refrigerator compartment 11, a vegetable compartment 12, a side-by-side ice making room 13, a first freezer compartment 14, and a second freezer compartment 15 in order from the top. At the front opening of the refrigerating room 11, a double door refrigerating room first door 21 and a refrigerating room second door 22 are attached. In addition, in the opening on the front side of the vegetable room 12, the ice making room 13, the first freezing room 14, and the second freezing room 15, a drawer type vegetable room door 23, an ice making room door 24, a first freezing room door 25, respectively. A second freezer compartment door 26 is attached.

  First, the second freezer compartment door 26 will be described as a representative for explaining the structure of the drawer-type door. As shown in FIGS. 3 and 4, the second freezer compartment 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 second freezer compartment door 26 has a vacuum heat insulating material 35 sandwiched between the outer plate 31 and the inner plate 32, and the rear surface of the inner plate 32 (the surface located inside the second freezer compartment 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 protruding portions 31 a for receiving screws are formed on the inner side of the corner where the front plate and the side plate intersect. ing. Further, a screw hole 31b into which a screw is screwed is formed in the protruding portion 31a.

  As shown in FIGS. 3 and 4, the inner plate 32 has a substantially box shape, and includes a gasket receiving portion 32 a to which a gasket 37 is fitted on the back side near the outer peripheral edge. The gasket receiving portion 32 a is a protrusion protruding forward and provided with a groove that opens to the rear (inside the refrigerator compartment), and is formed in the entire vicinity of the outer peripheral edge of the inner plate 32. Moreover, the screw hole 32b is formed in the position facing the screw hole 31b of the protrusion part 31a of the outer plate 31 when it mounts | wears with the outer plate 31 in the front side end surface of the gasket receiving part 32a. In FIG. 3, the gasket receiving portion 32a has a substantially square cross section. However, as long as the insertion portion 37b of the gasket 37 to be described later can be inserted into the gasket receiving portion 32a, for example, other shapes such as a U shape can be used. Also 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 packaging film 105. The outer packaging film 105 is made of protrusions, screws, metal or hard plastic. It may be broken if touched by burrs or edges. When the envelope film 105 is torn, the vacuum state is released, so that the heat insulating effect is remarkably reduced. As shown in FIG. 5, the outer plate 31 is formed with a plurality of screw receiving projections 31a. Therefore, if the vacuum heat insulating material 35 is disposed without any protection, the outer plate 31 is arranged on the projection 31a or the inner plate. There is a possibility that the outer packaging film 105 touches the screw 41 for fixing the 32 to the outer plate 31 or a burr generated when the screw 41 is screwed into the screw hole 31b of the projecting portion 31a to be broken. In addition, as the envelope film 105, a structure in which an aluminum foil and a resin film are sandwiched, or a film that is laminated on the surface of the resin film by aluminum vapor deposition or the like can be used.

  Therefore, in the vacuum heat insulating material 35 in the present embodiment, an elastic member 36 is wound around and attached to the outer peripheral portion in order to protect the envelope film 105. 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. Thus, by covering the outer peripheral portion of the vacuum heat insulating material 35 with the elastic member 36, the outer packaging film 105 does not directly touch the protruding portion 31a of the outer plate 31, so that the vacuum heat insulating material 35 is prevented from being damaged. it can.

  And this vacuum heat insulating material 35 is arrange | positioned in the substantially whole surface of the opposing surface inside the outer plate 31 and the inner plate 32, and is adhere | attached on the back surface of the outer plate 31, and the front surface of the inner plate 32 with the adhesive agent. . Further, the inner plate 32 is fixed to the outer plate 31 by the screw 41 in a state where the front end surface (bottom portion of the groove) of the gasket receiving portion 32 a of the inner plate 32 is close to the rear end surface of the protruding portion 31 a of the outer plate 31. Has been.

  The gasket 37 is a frame body having a hollow hermetically sealed air cushion portion 37a, and has an arrowhead-shaped insertion portion 37b. Furthermore, the gasket 37 has a magnet 37c for magnetically attaching 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 using flexibility.

  The throat member 34 has a rectangular frame shape, and is attached to the inner plate 32 by a screw, a claw, or a slide fit (not shown). The throat member 34 is a member for preventing cold air in the heat insulation box 3 from leaking by entering the inside of the heat insulation box 3 and overlapping the inner surface of the heat insulation box 3 when the second freezer compartment door 26 is closed. It is. It should be noted that a heat insulating material 43 such as polystyrene foam is filled in advance on the inner space side of the throat member 34.

  Next, in order to explain the structure of the Kannon type door, the refrigerator compartment first door 21 will be described as a representative. In addition, the same code | symbol is attached | subjected and described to the member which is common with the said drawer-type door. As shown in FIGS. 9 and 10, the refrigerator compartment first door 21 is provided between the outer plate 31, the inner plate 32, the throat member 34, the gasket fitting member 45, and the refrigerator compartment 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. In addition, a vacuum heat insulating material 35 is disposed on the inner sides of the outer plate 31 and the inner plate 32 over almost the entire surface thereof. A throat member 34 is fixed to the surface of the inner plate 32 on the inner side of the refrigerator 1 by adhesion or the like. A gasket fitting member 45 to which a gasket 37 is fitted is fixed to the outer plate 31 and the inner plate 32 by bonding or the like outside the throat member 34 (excluding the rotating member 33 side). In addition, a rotating member 33 that closes the gap between the first refrigerator door 21 and the second refrigerator door 22 is rotatably connected to the inner plate 32 in the vicinity of the end of the second refrigerator door 22 side. ing.

  The refrigerator compartment first door 21 configured as described above includes a hinge portion 50 in the vicinity of one side end of the top surface and the bottom surface. A shaft hole 51 through which the shaft bar 19 of the heat insulation box 3 is passed is formed in the hinge portion 50 as shown in FIG. Further, a hinge receiving plate 55 made of a highly rigid material such as metal is disposed inside the hinge portion 50, that is, in the vicinity of the inner corners of the outer plate 31 and the inner plate 32.

  The hinge receiving plate 55 is a member pivotally attached to the shaft rod 19 when the refrigerator compartment first door 21 is rotatably attached to the heat insulating box 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 from one end of the flat plate 55a to the flat plate 55a. A shaft hole 55c through which the shaft bar 19 passes is formed in the vertical plate 55b.

  And as shown in FIG. 12, the vacuum heat insulating material 35 in the refrigerator compartment 1st door 21 is a substantially rectangular parallelepiped shape, The corner | angular part located in the vicinity of the hinge part 50 of the outer plate 31 and the inner plate 32 is cut off. The two adjacent corners are chamfered. Further, the vacuum heat insulating material 35 can be inserted inside the inner plate 32 and has an outer dimension slightly smaller than the inner dimension of the inner plate 32 so that 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, in a state where the vacuum heat insulating material 35 is inserted inside the inner plate 32, the vacuum heat insulating material 35 enters between the upper and lower hinge portions 50, and the inner side of the inner plate 32. It is possible to eliminate almost no space where no heat insulating material exists.

  Further, the vacuum heat insulating material 35 is formed larger than the outer dimension of the throat member 34 in the refrigerator door first door 21, and is arranged over a wider range at least than the throat member 34 on the back surface of the surface to which the throat member 34 is fixed. Has been. That is, in the vicinity of the outer periphery of the vacuum heat insulating material 35, the throat member 34 and the vacuum heat insulating material 35 are superposed.

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

  As described above, the refrigerator compartment first door 21 in the present embodiment is pivoted when the refrigerator compartment first door 21 is attached to the heat insulating box 3 by chamfering a pair 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, the outer packaging film 105 of the vacuum heat insulating material 35 can be prevented from being damaged by the shaft rod 19. Moreover, since the vacuum heat insulating material 35 can be arrange | positioned even between the upper and lower hinge parts 50 in the refrigerator compartment 1st door 21 by chamfering a pair of adjacent corner | angular part of the vacuum heat insulating material 35, a heat insulation effect is improved. Can do.

  Furthermore, the vacuum heat insulating material 35 is formed larger than the outer dimension of the throat member 34 in the refrigerator door first door 21, and is disposed over a region wider than the region surrounded by the throat member 34. The indoor heat insulation effect can be enhanced.

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

  The refrigerating room second door 22 has the same configuration as that of the refrigerating room first door 21, and the same operational effects can be obtained. Moreover, the vacuum heat insulating material 35 in the refrigerator compartment 1st door 21 and the refrigerator compartment 2nd door 22 is good also as a structure which wound the soft tape around.

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

  Thus, the heat insulation effect can be further enhanced by arranging another heat insulating material 61 so as to fill the chamfered portion of the vacuum heat insulating material 35.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Refrigerator 3 Heat insulation box 11 Refrigeration room 12 Vegetable room 13 Ice making room 14 1st freezer room 15 2nd freezer room 21 Refrigerating room 1st door 22 Refrigerating room 2nd door 23 Vegetable room door 24 Ice making room door 25 First freezer room Door 26 Second freezer compartment door 31 Outer plate 31a Protruding portion 31b Screw hole 32 Inner plate 32a Gasket receiving portion 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 portion 37b Insertion part 37c Magnet 39 Handle 40 Adhesive 41 Screw 43 Heat insulation material 45 Gasket fitting member 50 Hinge part 51 Shaft hole 55 Hinge receiving plate 55a Flat plate 55b Vertical plate 55c Shaft hole 61 Heat insulation material 101 Core material 105 Outer film

Claims (4)

A heat insulating material is filled between the inner box and the outer box, and has a heat insulating box that has an opening at the front, and a plurality of doors of the Kannon type and the drawer type that close the opening at the front of the heat insulating box. A refrigerator,
The kannon door is a flat box-shaped outer plate that opens on the side of the refrigerator interior side, and a flat box-shaped that opens to the front of the refrigerator, and is fixed with the respective opening sides facing the outer plate. An inner plate, and a vacuum heat insulating material disposed between the outer plate and the inner plate so as to be sandwiched between the entire surfaces thereof, and
The outer plate and the inner plate have hinge portions in the vicinity of upper and lower corners for pivotally mounting to the heat insulating box,
The refrigerator is characterized in that the vacuum heat insulating material is provided with a heat insulating material different from the vacuum heat insulating material in which a corner portion close to the hinge portion is chamfered and fills the chamfered portion. A heat insulating material is filled between the inner box and the outer box, and has a heat insulating box that has an opening at the front, and a plurality of doors of the Kannon type and the drawer type that close the opening at the front of the heat insulating box. A refrigerator,
The kannon door is a flat box-shaped outer plate that opens on the side of the refrigerator interior side, and a flat box-shaped that opens to the front of the refrigerator, and is fixed with the respective opening sides facing the outer plate. An inner plate, and a vacuum heat insulating material disposed between the outer plate and the inner plate so as to be sandwiched between the entire surfaces thereof,
With
The outer plate and the inner plate are hinge portions provided in the vicinity of upper and lower corners to be rotatably mounted on the heat insulating box,
A hinge receiving plate, which comprises an L-shaped flat plate, and a vertical plate that rises perpendicularly to the flat plate from one end of the flat plate, and is pivotally attached to a hinge shaft provided in the heat insulating box;
Have
The hinge receiving plate is a partially intruding state of the flat plate between the vacuum heat insulator and the inner plate, the bonded in said plate with a vacuum heat insulating material, and the vacuum heat insulating material, the The refrigerator characterized by the corner part adjacent to a hinge part being chamfered.   The refrigerator according to claim 1 or 2, wherein the vacuum heat insulating material is sandwiched between the outer plate and the inner plate in a state where the vacuum heat insulating material is inserted between the upper and lower hinge portions. The Kannon type door further includes a throat member, and the throat member is fixed to a surface of the inner plate located inside the refrigerator,
4. The vacuum insulation material according to claim 1, wherein the vacuum heat insulating material is arranged over a wider range than at least the throat member on the back surface of the surface to which the throat member is fixed. 5. The refrigerator described.

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