KR20090100200A - Refrigerator - Google Patents

Abstract

PURPOSE: A refrigerator with an insulating box with a vacuum insulating panel is provided to prevent the heat leakage from a bent part of the panel while suppressing the affect of a hit bridge. CONSTITUTION: A refrigerator comprises an insulating box body(20). The insulating box body includes a vacuum insulating panel(50). The vacuum insulating panel is arranged within a space formed with an outer casing(21) and an inner casing(22) along the casings. The insulated box body is made by charging a foam insulation(23) in the space. The vacuum insulating panel surrounds a core member with a skin member while using the flexibility of the inside.

Description

Refrigerator {REFRIGERATOR}

TECHNICAL FIELD This invention relates to a refrigerator. Especially, it is suitable for the refrigerator provided with the heat insulation box which has a vacuum insulation panel.

In recent years, energy saving has also been demanded in refrigerators from the viewpoint of global environmental protection such as global warming prevention. In addition, as the recent social background has increased the number of households that purchase food at once, the need for large-capacity refrigerators is increasing.

Conventionally, refrigerators have refrigeration cycle parts for circulating refrigerant such as compressors, condensers, and heat radiating pipes, and electrical parts such as control boards and power boards. These are self-heating and temperature rises by operating a refrigerator. In order to suppress the heat penetration into the furnace by the temperature rise of these components, in order to suppress the energy saving, thickening the heat insulation wall corresponding to these components was generally performed, but it became a negative factor from the viewpoint of the large capacity.

Moreover, conventionally, the refrigerator improves heat insulation performance by applying a plate-shaped vacuum heat insulation panel, and thereby reduces the thickness of a heat insulation wall. However, the place where the vacuum insulation panel is to be arranged is often three-dimensional in shape, and a large number of small vacuum insulation panels can be used to cope with it. Therefore, the influence of the heat bridge of the shell material of each vacuum insulation panel is increased, which is caused by the vacuum insulation panel. The improvement of heat insulation performance was suppressed.

As an improved example, Japanese Patent Laid-Open No. 2001-336691 (Patent Document 1), Japanese Patent Laid-Open No. 2004-11708 (Patent Document 2), and Japanese Patent Laid-Open Publication No. 2006-125686 (Patent Document 3) The refrigerator disclosed in is unfolded.

In the refrigerator described in Patent Document 1, the flat vacuum insulating panel is grooved to provide flexibility to enable bending, and the sheet is bent to the outer casing wall surface of the upper part of the machine room of the refrigerator to follow the portion thereof, and the vacuum insulating panel The area of one vacuum insulated panel is enlarged by providing.

In addition, in the refrigerator of Patent Document 2, a groove along the refrigerant pipe is formed by using a molded article having a lower concentration of the binder than the surface layer as a core material, without damaging the outer shell material by a molding method such as a conventional mold press. By making it possible to process, it becomes possible to arrange | position to the refrigerant | coolant piping part of which the arrangement | positioning of the vacuum insulation panel was limited, and to cover it with one vacuum insulation panel widely.

In the refrigerator of Patent Document 3, the refrigerator has a second upper surface portion and a second rear portion which form a machine room for accommodating a compressor and a machine room fan, and is formed on the end surface of the vacuum insulation panel so as to be bent at the junction of the second upper surface portion and the second rear portion. The groove part is provided, and this vacuum insulation panel is bent at 90 degrees from the groove part, and is arrange | positioned over the 2nd upper surface part and the 2nd rear part. As a result, the vacuum insulation panel can be widely covered with one sheet, so that sound or vibration generated by the compressor or the machine room fan can be sounded and attenuated and silenced, and the intrusion of heat generated from the compressor into the chamber can be suppressed.

<Patent Document 1> Japanese Unexamined Patent Publication No. 2001-336691

Patent Document 2: Japanese Unexamined Patent Publication No. 2004-11708

Patent Document 3: Japanese Unexamined Patent Publication No. 2006-125686

However, since all the refrigerators of Patent Documents 1 to 3 are provided with grooves in the vacuum insulation panel, there is a problem that the thickness of the core material in the grooves becomes thin and heat leakage from the grooves increases. In addition, in the refrigerators of Patent Documents 1 and 3, grooves are formed in the core material through the outer shell material, so that the core material is cut in the outer shell material. There was a fear of deterioration in performance.

An object of the present invention is to provide a refrigerator which can prevent heat leakage from the bent portion of a vacuum insulated panel while suppressing the influence of the heat bridge by increasing the area of the vacuum insulated panel.

A first aspect of the present invention for achieving the above object is to form a foam insulation in the space while arranging a vacuum insulation panel in the space formed by the outer casing and the inner casing and along the outer casing or the inner casing. In the refrigerator in which the heat insulation box is filled, the vacuum heat insulation panel uses the thing which has the flexibility which enclosed the core material which consists of a fiber aggregate which does not contain a binder by the outer skin material which consists of a gas barrier film, and pressure-reduced the inside of it. Without bending the vacuum insulation panel in the panel surface, using the flexibility of the vacuum insulation panel, the plate thickness is bent in a state substantially equal to a three-dimensional shape that conforms to the three-dimensional shape of the outer casing or the inner casing. Of the outer casing or the inner casing The said vacuum heat insulation panel of the several types of three-dimensional shape respectively matching a three-dimensional shape of several places is provided in the said several places.

The more preferable specific structural example in this 1st aspect of this invention is as follows.

(1) a concave end portion for accommodating a control substrate as a self-heating component is formed in a rear portion of the upper surface of the heat insulation box, and a machine room for accommodating a compressor as a self-heating component is formed in a rear portion of the bottom surface of the heat insulation box. And the three-dimensional vacuum insulated panel matching the concave end and the machine room.

(2) In the above (1), the three-dimensional vacuum insulating panel corresponding to the concave end is provided along the inner side of the upper surface of the outer casing, and the three-dimensional vacuum insulating panel corresponding to the machine room is Installed along the inside of the inner casing.

(3) The said (2), Comprising: The cooler provided in the back part inside the refrigerator located just above the said machine room, and arrange | positioned so that the said three-dimensional vacuum insulation panel may be interposed between the said cooler and the said compressor.

(4) The said (1) is provided with the heat dissipation pipe which contact | connects the upper surface of the said outer casing located in front of the said concave end part, and the said vacuum heat insulation panel was bent in two steps so that the said vacuum insulated panel may be extended to the said concave end part and the said heat dissipation pipe. A three-dimensional shape, wherein the entire surface of one side of the three-dimensional vacuum insulation panel is attached to the upper surface of the outer casing via an adhesive member having flexibility and heat insulation.

(5) The sheet material made of polyethylene foam provided with a double-sided adhesive as said adhesive member as described in said (4).

(6) The rear surface of the outer casing is composed of a rear flat portion and a rear inclined portion extending obliquely forward from both left and right sides thereof, and includes a heat dissipation pipe extending upward and downward in contact with a corner portion of the rear flat portion and the rear inclined portion. The vacuum insulated panel is bent to span the rear flat portion, the heat dissipation pipe, and the rear inclined portion to have a wide three-dimensional shape, and has flexibility and heat insulating property between the three-dimensional vacuum insulated panel and the heat dissipation pipe. Interposed polyethylene foam sheet material having a.

(7) A part of said inner casing is provided with the protrusion which protrudes to the said space side, and the internal temperature detection means is provided in the said protrusion, and a recessed part and an expansion part are paired in the plate thickness direction front and back surface of the said vacuum insulation panel, respectively. And forming the plate thickness between the recess and the expansion portion substantially the same as the other portions, and storing the protrusion in the recess of the vacuum insulation panel.

(8) A meandering heat dissipation pipe is provided on at least one surface of the outer casing, and a pair of recesses and inflation portions are formed on the front and rear surfaces in the thickness direction, respectively, and the plate thickness between the recesses and the inflation portions is increased. The heat dissipation pipe is housed in the recess of the three-dimensional vacuum insulation panel which is almost the same as the other parts.

(9) A plurality of doors are provided on the front face of the heat insulating box, and a power unit for opening, closing, or opening and closing the door at the lowermost end of the plurality of doors is provided from the bottom of the inner casing into the space. It installs by protruding a drive part, and forms a pair of recessed part and an expansion part in the plate thickness direction front and back surface of the said vacuum insulation panel, and makes the plate | board thickness between the said recessed part and the said expansion part substantially the same as another part. To accommodate the drive portion in the recess of the vacuum insulated panel.

Further, the second aspect of the present invention arranges a vacuum insulation panel in the space formed by the outer casing and the inner casing and along the outer casing or the inner casing, and simultaneously fills the thermal insulation box with a foam insulation material in the space. And a refrigerator having a part or a member protruding inwardly of the outer casing or the inner casing, wherein the core material is made of a fiber aggregate containing no binder and uses a flexible core material as the core material of the vacuum insulation panel. Arranging a heat dissipation pipe of a refrigerating cycle on the rear surface side of the outer casing, and using a flexibility of the core material to form a pair of recesses and an expansion portion in the thickness direction front and back surfaces of the vacuum insulation panel, respectively; Three-dimensionally making the plate thickness between the portion and the expansion portion almost the same as other portions The said heat radiation pipe was accommodated in the said recessed part of the said vacuum heat insulation panel using the shape of the vacuum heat insulation panel.

The more preferable specific structural example in this 2nd aspect of this invention is as follows.

(1) a heat dissipation pipe extending upward and downward in contact with a rear flat portion and a rear inclined portion extending obliquely forward from both left and right sides thereof, and contacting a corner portion of the rear flat portion and the rear inclined portion; And the vacuum insulated panel is formed in a three-dimensional shape that is widened and bent to cover the rear flat portion, the heat dissipation pipe, and the rear inclined portion, and has flexibility between the three-dimensional vacuum insulated panel and the heat dissipation pipe. And a sheet member made of polyethylene foam having heat insulating properties.

The more preferable specific structural example in this 1st or 2nd aspect of this invention is as follows.

(1) The vacuum heat insulating panel includes the core material made of an inorganic fiber laminate having repulsion with respect to the compression direction, an inner material made of a synthetic resin film covering and sealing the core material, a heat welding layer, and a gas barrier film. Covering the said core material and the said inner cover material with the laminated film formed into a film, and consist of the outer cover material which sealed under reduced pressure inside.

According to the refrigerator of the present invention, heat leakage from the bent portion of the vacuum insulation panel can be prevented while suppressing the influence of the heat bridge by increasing the area of the vacuum insulation panel.

EMBODIMENT OF THE INVENTION Hereinafter, several embodiment of this invention is described using drawing. The same code | symbol in the drawing of each embodiment shows the same or equivalent.

(1st embodiment)

The refrigerator of 1st Embodiment of this invention is demonstrated using FIGS.

First, the whole structure of the refrigerator 1 of this embodiment is demonstrated, referring FIG. 1 and FIG. 1 is a front view of a refrigerator provided with the present embodiment, and FIG. 2 is a sectional view taken along line A-A in FIG.

The refrigerator 1 is equipped with the heat insulation box 20 and the heat insulation doors 6-9 as main components. This heat insulation box 20 consists of a top surface, a bottom face, both side surfaces, and a back surface, and has comprised the box shape which opened the front surface. And the heat insulation box 20 has the refrigerating chamber 2, the storage chamber 3, the switching chamber, the lower freezing chamber 4, and the vegetable chamber 5 in order from the top, as shown in FIG.

The heat insulation doors 6 to 9 are doors for closing the front openings of the respective chambers 2 to 5. The refrigerating chamber doors 6a and 6b, the ice-making chamber door 7a, the upper freezer compartment door 7b, the lower freezer compartment door 8, and the vegetable compartment door 9 are arrange | positioned corresponding to each chamber 2-5. The refrigerating compartment doors 6a and 6b are double door doors which rotate about the hinge 10, and all the doors other than the refrigerating compartment doors 6a and 6b are drawer-type doors. When these drawer-type doors 7-9 are taken out, the container which comprises each chamber is taken out with a door. Each door 6-9 is provided with the packing 11 for sealing the heat insulation box 20. As shown in FIG. This packing 11 is provided in the interior outer periphery of each door 6-9.

Moreover, the heat insulation partition 12 for partition insulation is arrange | positioned between the refrigerating chamber 2, the ice-making chamber 3a, and the upper end freezing chamber 3b. The heat insulating partition 12 is a heat insulating wall having a thickness of about 30 to 50 mm, and each of styrofoam, foamed heat insulating material (for example, urethane foam), vacuum heat insulating panel, or the like is used alone or in combination of a plurality of heat insulating materials. In addition, since the temperature ranges are the same between the ice making chamber 3a, the upper freezing chamber 3b, and the lower freezing chamber 4, the partition member 13 which forms a packing support surface is provided instead of the thermal insulation partition which insulates and partitions. An insulation partition 14 for partitioning insulation is provided between the lower freezer compartment 4 and the vegetable compartment 5. Similar to the heat insulation partition 12, this heat insulation partition 14 is a heat insulation wall of about 30-50 mm, and each of styrofoam, a foam insulation (for example urethane foam), a vacuum insulation panel, etc. is used independently or a plurality of heat insulation materials are used. It is made in combination. Basically, an insulation partition is provided in the partition of a room with different storage temperature ranges, such as refrigeration and freezing. In this embodiment, the heat insulation partitions 12 and 14 are comprised by the foamed polystyrene 33 and the vacuum heat insulation panel 50. As shown in FIG.

Moreover, although the storage compartment of the refrigerating compartment 2, the ice-making compartment 3a, the upper freezer compartment 3b, the lower freezer compartment 4, and the vegetable compartment 5 is formed in the heat insulation box 20 from the top, respectively, each storage compartment The arrangement of is not particularly limited to this. In addition, the refrigerating chamber doors 6a and 6b, the ice making chamber door 7a, the upper freezing chamber door 7b, the lower freezing chamber door 8, and the vegetable chamber door 9 are also opened and closed by rotation, opening and closing by drawing out, and door. The number of divisions, and the like are not particularly limited.

The heat insulation box 20 is equipped with the metal outer casing 21 and the synthetic resin inner casing 22, and the heat insulation part is provided in the space formed by the outer casing 21 and the inner casing 22, and each Insulating the storage room and exterior. The vacuum insulation panel 50 is disposed along the inner side of the outer casing 21 or the inner casing 22, and the foam insulation material 23 such as hard urethane foam is filled in a space other than the vacuum insulation panel 50 to insulate it. Is configured. In general, the reference numeral 50 is used to designate a vacuum insulation panel, and when the vacuum insulation panel of a specific place is indicated, the subscript of the alphabet is added after the sign 50.

The outer casing 21 is formed in the box shape which consists of an upper surface, a bottom surface, both side surfaces, and a back surface by welding a bent steel plate or a flat steel plate. The inner casing 22 is formed into a box shape consisting of an upper surface, a bottom surface, both side surfaces, and a back surface by molding a synthetic resin plate.

In order to cool each room | chamber of the refrigerating chamber 2, the freezing chamber 3a, 4, the vegetable chamber 5, etc. to predetermined | prescribed temperature, the cooler 28 is provided in the back side of the freezing chamber 3a, 4. The refrigerator 28, the compressor 30, the condenser 31, and the capillary tube (not shown) are connected to form a refrigeration cycle. Above the cooler 28, the blower 27 which circulates the cold air cooled by this cooler 28 in a refrigerator, and maintains a predetermined low temperature is arrange | positioned.

The inner lamp 45 which has the case 45a which protruded toward the foam heat insulating material 23 side is provided in a part of the upper surface of the inner casing 22, and the inside of the refrigerator when the door of a refrigerator is opened is made easy to see. The high light 45 is an incandescent bulb, a fluorescent lamp, a xenon lamp, or the like. Since the thickness of the foamed heat insulating material 23 between the case 45a and the outer casing 21 becomes thin by the installation of the inner lamp 45, the vacuum heat insulation panel 50a is arrange | positioned in this part and the heat insulation performance is ensured.

In the rear part of the upper surface of the heat insulation box 20, the recessed end part 40 for accommodating electrical components 41, such as a control board and a power supply board, for controlling the operation of the refrigerator 1 is formed. As a result, the upper surface of the outer casing 21 exhibits a three-dimensional shape by the concave end portion 40. The electrical component 41 is a self heating component with a large amount of heat generation. The concave end portion 40 is provided with a cover 42 covering the electrical component 41. The height of the cover 42 is arrange | positioned so that it may become substantially the same height as the upper surface of the outer casing 21 in consideration of external appearance design and internal volume ensuring. When the height of the cover 42 protrudes from the upper surface of the outer casing, it is preferable to set it within 10 mm. Since the recessed end portion 40 is a state in which only the space for accommodating the electrical component 41 is stored in the foamed heat insulating material 23 side, when the thickness of the foamed heat insulating material 23 is attempted to secure the heat insulating performance of this part, the internal volume is sacrificed. It becomes. On the contrary, when the internal volume is to be secured, the thickness of the foamed heat insulating material 23 between the concave end portion 40 and the inner casing 22 becomes thin, resulting in poor heat insulating performance.

In view of this, in the present embodiment, the vacuum insulation panel 50a is disposed on the surface of the insulated end portion 40 on the foam heat insulating material 23 side to enhance the heat insulating performance. Specifically, the one-dimensional three-dimensional vacuum insulation panel 50a is provided so that the vacuum insulation panel 50a may be extended to the case 45a of the interior lamp 45, and the electrical component 41. As shown in FIG.

The machine room 15 is formed in the back part of the bottom face of the heat insulation box 20 over the left and right full width. In this machine room 15, the compressor 30 and the condenser 31 are arrange | positioned. The compressor 30 and the condenser 31 are self-heating parts with a large heat generation amount. Therefore, in order to prevent heat invasion from the machine room 15 to the inside of the refrigerator, one-dimensional three-dimensional vacuum insulation panel 50b is disposed on the projection surface toward the inner casing 22 side.

Next, the installation of the vacuum insulation panels 50a and 50b will be described in detail with reference to FIGS. 3 and 4. FIG. 3 is an enlarged view of portion B in FIG. 2, and FIG. 4 is an enlarged view of portion C in FIG.

As shown in Fig. 3, in this embodiment, a meandering heat dissipation pipe 60 in contact with the inner side of the upper surface of the outer casing 21 located in front of the concave end portion 40 is provided. The heat dissipation pipe 60 is covered with an aluminum tape 60a and fixed to the outer casing 21. Thereby, the heat of the heat dissipation pipe 60 is transferred to the outer casing 21 also through the aluminum tape 60a.

The recessed end part 40 is provided with the inclined surface which inclines from the rear part of the upper surface of the outer casing 21, and descends to the rear, and the horizontal bottom face extended horizontally from this inclined surface. That is, the upper surface of the outer casing 21 has a three-dimensional shape consisting of the front horizontal surface, the inclined surface and the rear horizontal surface.

On the other hand, the vacuum insulated panel 50a has a three-dimensional shape in which the plate thickness is almost the same and is bent in two stages, the front horizontal portion, the inclined portion descending rearward from the front horizontal portion, and the rear portion from the inclined portion. It consists of a rear horizontal portion extending horizontally. The three-dimensional shape of the vacuum insulation panel 50 substantially coincides with the three-dimensional shape of the upper surface of the outer casing 21.

This vacuum insulation panel 50a is provided so that the heat radiation pipe 60 and the recessed end part 40 may be extended. Specifically, the whole surface of one side of the vacuum heat insulation panel 50a is adhere | attached on the upper surface of the outer casing 21 via the adhesive member 62 which has flexibility and heat insulation. Thereby, since the heat of the heat radiation pipe 60 is not directly transmitted to the vacuum heat insulation panel 50a, the time-lapse deterioration of the heat insulation performance of the vacuum heat insulation panel 50a by the heat of the heat radiation pipe 60 is suppressed, and heat insulation is carried out over a long term. Maintain performance. In this embodiment, since the adhesive member 62 uses a polyethylene foam sheet member having a double-sided pressure-sensitive adhesive, the vacuum insulation panel 50a can be easily installed while preventing the gap caused by the heat dissipation pipe 60.

As mentioned above, since the heat insulation pipe 60 and the recessed end part 40 which arrange | positioned the electrical component 41 are insulated with one vacuum insulation panel 50a, it is easy to carry out to the part which arrange | positioned the self-heating component by the simple structure. The heat insulation performance in can be improved especially. Moreover, since heat insulation is carried out by the vacuum heat insulation panel 50a in the part near the high temperature part side, the heat leakage to the inside of a chamber from the heat radiation pipe 60 and the electrical component 41 can be further reduced.

As shown in FIG. 4, the machine room 15 in which the compressor 30 and the condenser 31 are arrange | positioned is provided in the rear part of the bottom face of the heat insulation box 20. As shown in FIG. The bottom surface of the heat insulation box 20 is formed by the formation of the machine room 15, and the front side horizontal part, the inclined part which rises rearward from this front side horizontal part, and the rear side extended horizontally from this inclined part rearwardly. It has a three-dimensional shape consisting of a horizontal portion. Accordingly, the bottom surfaces of the outer casing 21 and the inner casing 22 are the front horizontal portion, the inclined portion rising rearward from the front horizontal portion, and the rear horizontal portion extending horizontally from the inclined portion rearward. A three-dimensional shape is formed.

On the other hand, the vacuum insulation panel 50b has a three-dimensional shape in which the plate thickness is almost the same and is bent in two stages, the front horizontal portion, the inclined portion rising rearward from the front horizontal portion, and the rear portion from the inclined portion. It consists of a rear horizontal portion extending horizontally. The three-dimensional shape of the vacuum insulation panel 50 substantially coincides with the three-dimensional shape of the bottom face of the inner casing 22.

Since the vacuum insulation panel 50b is provided so as to extend to the front horizontal portion, the inclined portion and the rear side horizontal portion of the inner casing 22, the heat insulation performance can be significantly improved with a simple configuration, so that the compressor 30 and the condenser can be improved. It is possible to reliably reduce the heat leakage from 31 to the inside of the refrigerator.

The cooler 28 is provided in the rear surface of the inside of the machine room 15 which is located directly above the machine room 15, and the three-dimensional vacuum insulation panel 50b is disposed to be interposed between the cooler 28, the compressor 30, and the condenser 31. have. In this way, the vacuum insulation panel 50b disposed between the cooler 28 having the lowest temperature and the compressor 30 having the highest temperature has a three-dimensional shape, and the compressor 30 and the condenser 31 whose one end is a heating part. Since it is located away from, the influence by the heat bridge can be reduced. In addition, the vacuum insulation panel 50b located between the compressor 30 and the cooler 28 forms a notch for avoiding a drain pipe (not shown). The presence or absence of this notch or its shape is not particularly limited.

A part of the inner casing side projection surface of the machine room 15 is provided with an internal temperature detecting means (high temperature detecting sensor) 48 for detecting the internal temperature of the refrigerator. This internal temperature detecting means 48 is housed in the protruding portion 48a formed by protruding the inner casing 22 toward the foamed heat insulating material 23 side in order to eliminate the protrusion into the internal storage. For this reason, the vacuum heat insulation panel 50b shape | coats and coats the uneven | corrugated shape according to the shape of this protrusion part 48a. That is, the vacuum insulation panel 50b has a concave-convex shape in which the recessed portion and the expanded portion are formed in pairs on the front and rear surfaces of the plate thickness direction, respectively, and the plate thickness between the recessed portion and the expanded portion is almost the same as the other portions. The protruding portion 48a is accommodated in the concave-convex portion thereof.

Although the vacuum insulation panel 50 will be described in detail later, since the binder is not used for the core material, the vacuum insulation panel 50 has flexibility and can be easily bent without forming grooves or the like, and concave portions and expanded portions can be formed. In the case where the core material is molded to a certain thickness by the binder, a hardened layer having a high binder concentration is formed on the surface of the core material, and if it is forcibly bent, the bent inner portion cracks, resulting in a decrease in the thickness of the core material or the cutting of the core material. It will lead to deterioration of insulation performance. Since the core material of the present embodiment has flexibility and a large repulsive force against atmospheric pressure, buckling does not occur in the bent inner portion and there is almost no decrease in the thickness of the core material in the bent portion and the uneven shape. For this reason, a bent shape and an uneven shape are obtained without degrading heat insulation performance.

In addition, the vacuum insulation panel 50a of the upper surface part shown in FIG. 3 is made to bend twice using the jig | tool for a bending, and to obtain substantially Z shape. The vacuum insulation panel 50b of the bottom part shown in FIG. 4 processes uneven | corrugated shape by a tightening press, and obtains substantially Z shape by the bending jig | tool.

Next, the vacuum insulation panel 50 will be described in more detail with reference to FIG. 5. FIG. 5 is a cross-sectional view showing the basic shape of the vacuum insulation panel 50 in FIG. 1.

The vacuum insulated panel 50 includes a core material 51, an inner packing material 52 for holding the core material 51 in a compressed state, and a core material held in a compressed state by the inner packing material 52 ( An outer shell 53 having a gas barrier layer covering the 51 and an adsorbent 54 are formed.

The core material 51 is a laminate of inorganic fibers not bonded or bound with a binder, and is composed of a fiber aggregate using glass wool having an average fiber diameter of 4 μm, and has flexibility and repulsion with respect to the compression direction. have. Since the generation of gas from the core material 51 can be reduced by using a laminate of inorganic fiber materials as the core material 51, heat insulation is advantageous in performance, but ceramic fiber or rock wool, You may use inorganic fibers, such as glass fiber other than glass surface.

As for the inner packaging material 52, the polyethylene film which is a synthetic resin film which has the heat insulation which can be heat-welded is used, and the core material 51 is covered and compression-sealed. For the inner packaging material 52, a polypropylene film, a polyethylene terephthalate film, a polybutylene terephthalate film, or the like may be used. The hygroscopicity may be low and thermally welded, and gas may be generated less. The ear end of the inner wrapper 52 is disposed in the ear end of the outer jacket 53.

The outer cover material 53 is a laminate film having a gas barrier layer formed by combining two or more layers of a thermally welded layer and a film formed with a gas barrier film, and is disposed on both sides of the vacuum insulation panel 50, and laminated films of the same size. It consists of an envelope shape in which a portion of a constant width is joined by thermal welding from a ridge line of. The inside of the outer cover material 53 is sealed under reduced pressure.

The laminate structure of the outer cover material 53 is not particularly limited as long as it has gas barrier properties and can be thermally welded. In this embodiment, the laminate film is composed of a three-layer structure of a surface layer, a gas barrier layer, and a thermal welding layer. . Here, the surface layer is formed by providing a metal deposition layer on a resin film having low hygroscopicity, and the gas barrier layer is formed by providing a metal deposition layer on a resin film having high oxygen barrier property, and the surface layer and the gas barrier layer are formed by metal deposition layers. It is joined to face each other. In addition, the heat welding layer uses the film with low hygroscopicity similarly to a surface layer. Specifically, the surface layer is a biaxially stretched polypropylene film with aluminum deposition or a biaxially stretched polyethylene terephthalate film with aluminum deposition, and the gas barrier layer is a biaxially stretched ethylene vinyl alcohol aerial with aluminum deposition. It is set as the biaxially stretched polyvinyl alcohol resin film provided with a copolymer resin film or aluminum vapor deposition, and the heat welding layer is made into the unstretched polyethylene film or the unstretched polypropylene film. Moreover, even if a gas barrier film, such as an inorganic layer compound and a resin gas barrier coating material, was provided in a metal foil and a resin film as a gas barrier layer, and a polybutylene terephthalate film etc. with high oxygen barrier property are used for a heat welding layer, for example. do.

As described above, the purpose of arranging the resin having low hygroscopicity in the surface layer and the thermal welding layer is that the above-described gas barrier layer film having a high oxygen barrier property deteriorates the gas barrier property due to moisture absorption. This is to suppress the moisture absorption amount of the whole laminate film. As a result, even in the vacuum evacuation step of the vacuum insulated panel 50, since the amount of moisture contained in the envelope 53 is small, the vacuum evacuation efficiency is greatly improved, leading to high performance.

In addition, about the laminated structure of the outer shell material 53, if it has moisture proof property, gas barrier property, and heat welding property, it is not specifically limited to a three-layered structure, A surface protection layer, a 1st gas barrier layer, a 2nd gas barrier layer, The multilayer structure which provided two or more gas barrier layers, such as a laminated film which consists of a four-layer structure of a thermal welding layer, may be sufficient. For example, in consideration of films such as polyamide, polypropylene, polyethylene terephthalate, gas barrier properties, hygroscopicity, and the like as the surface protective layer, a biaxially stretched film is preferable. As the 1st and 2nd gas barrier layer, the biaxially-stretched film provided with the gas barrier film which consists of a metal, a metal oxide, an inorganic material, etc. is preferable, For example, a polyethylene terephthalate, an ethylene vinyl alcohol copolymer, a polyvinyl alcohol And the like film. Although the strength at the time of thermal welding is required as a thermal welding layer, it is preferable to combine it with films, such as polyethylene, a polypropylene, polybutylene terephthalate, such as low density, medium density, high density, and low linear density, for example. Each layer is joined by the dry lamination method via a two-component curable urethane adhesive.

The adsorbent 54 is for adsorbing moisture and gas in the outer cover material 53, and a synthetic zeolite of physical adsorption type is used. However, the material is not limited to this material, and other materials of a physical adsorption type or a chemical reaction type adsorption type material may be used.

The vacuum heat insulation panel 50 of this embodiment which consists of the above structure uses the thing which set the thickness of the core material 51 to 10 mm, and the density of the core material 51 to about 250 (kg / m <3>). As described above, since the core material 51 has no binding of fibers by a binder or the like, the bending is easy and the thickness of the core material 51 is hardly reduced since there is no processing such as grooves in the bent portion. There is nothing worse. By arranging the vacuum insulation panel 50a on the upper surface of the heat insulation box 20, heat invasion into the interior by the electrical component 41 and the heat radiation pipe 60 can be reduced, and the heat radiation pipe 50 is The heat dissipation characteristic can be improved. Moreover, since the vacuum insulation panel 50b is arrange | positioned in the bottom face of the heat insulation box 20, invasion of the heat which generate | occur | produces from the compressor 30 and the condenser 31 can be suppressed, without increasing wall thickness. It can improve the insulation performance.

The refrigerator provided with the vacuum insulation panel 50 of this embodiment is consumed compared with the refrigerator of the comparative example 1 in which the plate-shaped vacuum insulation panel 50 is divided and arranged in the upper surface and the bottom surface of the heat insulation box 20. FIG. It was confirmed that the amount of power can be reduced to about 2%. In addition, this comparative example 1 is a structure shown in FIG. 11, and is the same as that of this embodiment except having arrange | positioned several small plate-shaped vacuum insulation panels 50. As shown in FIG.

In addition, the refrigerator shown in FIG. 12 shows the refrigerator of the comparative example 2 using the thing which carried out the groove | bending by the plate-shaped vacuum insulation panel 50, and was bent. It is the same as that of 1st Embodiment except having used the thing which groove-formed and bent the plate-shaped vacuum insulation panel 50 in the upper surface and the lower surface. In this comparative example 2, although the power consumption amount could be reduced about 1% with respect to the comparative example 1, it turned out that deterioration with time by an acceleration test shows a big tendency.

According to the present embodiment, Patent Documents 1 to 3, which are conventional configurations, are made by forming a vacuum insulation panel 50 having a degree of freedom in shape without processing to reduce the thickness of core materials such as grooves in three-dimensional portions such as bending. As described above, since there is no heat leakage from the plate thickness reducing part of the core material or the division of the core material due to processing such as grooves, and the thermal insulation performance is not deteriorated, a plurality of sheets are applied to a plurality of places where the self-heating components of the thermal insulation box are arranged. An energy-saving refrigerator can be provided which effectively reduces the amount of heat leakage and also aims at expanding the internal volume. That is, according to the present embodiment, by arranging the vacuum insulation panel 50 which can realize a three-dimensional shape without reducing the thickness of the plate on the inner casing side projection surface of the self-heating component, the heat penetration into the interior is suppressed and the conventional arrangement is made. Since it was possible to arrange to the vicinity of the box corner part which was not possible, a heat insulation effect is low, and the vacuum insulation panel with a large area per sheet can be employ | adopted, As a result, a heat insulation performance can be improved significantly and the heat insulation thickness increases It is possible to provide a refrigerator having high internal volume and energy saving without work.

(2nd embodiment)

Next, the refrigerator of 2nd Embodiment of this invention is demonstrated using FIG. 6 is a cross sectional view of a refrigerator of a second embodiment of the present invention; 6 is a diagram corresponding to the Z-Z cross section of FIG. This second embodiment differs from the first embodiment in the following points, and other points are basically the same as those in the first embodiment, and overlapping descriptions are omitted.

In this second embodiment, the vacuum insulation panel 50c disposed on the rear surface of the outer casing 21 is widened in the width direction and bent in a substantially inverted c shape along the shape of the outer casing rear surface 21b to form a three-dimensional shape. The vacuum insulation panel 50c is attached to the inside of the back surface of the outer casing 21 with an aluminum tape 60a or the like so as to cover the heat dissipation pipe 60. The vacuum heat insulation panel 50c is made into the shape which does not contact with the heat radiating pipe 60, and is arrange | positioned through the heat buffer member 63 comprised from the polyethylene foam sheet material.

That is, the refrigerator 1 of this 2nd Embodiment is comprised from the back flat part of the outer casing 21, and the vertical inclination part of the vertically long narrow width which extends obliquely forward from both left and right sides, and is flat. The heat dissipation pipe 60 which extends up and down in contact with the corner part of a part and a back slope part is provided. Then, the vacuum insulated panel 50c is bent to cover the rear flat portion, the heat dissipation pipe, and the rear inclined portion to have a wide three-dimensional shape, and the three-dimensional vacuum insulating panel 50c and the heat dissipation pipe 60 are formed. A heat buffer member 63 made of a polyethylene foam sheet member having flexibility and heat insulating properties is interposed therebetween.

According to this 2nd Embodiment, by covering the heat radiating pipe 60 with the vacuum heat insulation panel 50c, the heat of the heat radiating pipe 60 can be efficiently transmitted to the outer plate back surface 20a as described also in 1st Embodiment. Therefore, heat dissipation can be improved, which can greatly contribute to energy saving. In particular, since the rear inclined portion has a long vertical length, when the independent vacuum insulation panel is applied to this portion, the length of both end portions of the vacuum insulation panel occupies the entire length, so that the heat bridge of the vacuum insulation panel is large. The effect is very large. Therefore, even if an expensive vacuum insulation panel is applied to this part independently, the improvement of the thermal insulation performance suitable to it cannot be aimed at. In contrast, in this second embodiment, the vacuum insulated panel 50c covering the rear flat portion is widened to form a three-dimensional shape, and thus the area of about 30% of the vacuum insulated panel used in the first embodiment is increased without increasing the number of both side ends. You can zoom in.

In the second embodiment, the amount of power consumption can be reduced by about 4% with respect to Comparative Example 1, which does not include the vacuum insulated panel on the rear inclined portion, and the effectiveness to save energy can be confirmed.

(Third embodiment)

Next, the refrigerator of 3rd Embodiment of this invention is demonstrated using FIG. 7 is a longitudinal sectional view of the refrigerator according to the third embodiment of the present invention, and FIG. 8 is a sectional view taken along line X-X in FIG. In addition, this FIG. 7 is a figure corresponding to the A-A cross section of FIG. Since this 3rd Embodiment differs from 1st Embodiment in the following point, other points are basically the same as 1st Embodiment, and the overlapping description is abbreviate | omitted.

The refrigerator 1 of the third embodiment extends the length of the heat dissipation pipe 60 by arranging meandering heat dissipation pipes 60 on the back of the outer casing 21 and on the inner sides of both sides in order to increase heat dissipation efficiency. The heat dissipation area is increased. The heat dissipation pipe 60 is covered with the substantially inverted c-shaped portion to form a three-dimensional shape in which two portions of the insulators having substantially inverted c-shape are formed by bending the portion of the vacuum insulation panels 50d and 50e. These vacuum heat insulating panels 50d and 50e are arrange | positioned by bonding the part which contact | connects the inner surface of the outer casing back 21b other than substantially inverted c-shaped part, making the external shape after bending similar to 1st Embodiment. In this third embodiment, the heat insulating pipes 60 are disposed in consideration of the flow direction during urethane injection, and the vacuum heat insulating panels 50d and 50e are disposed and fixed to the inside of the rear surface of the outer casing 21 with aluminum tape. The urethane foam is filled between the vacuum insulation panels 50c. Thereby, heating of the vacuum heat insulation panel 50c by the heat dissipation pipe 60 can be prevented without interposing the heat buffer member 63.

In this third embodiment, the amount of power consumption can be reduced by about 4% with respect to Comparative Example 1 which does not have a meandering heat dissipation pipe 60 on the back side, and the energy saving effect by the improvement of the heat dissipation was confirmed.

(4th embodiment)

Next, the refrigerator of the 4th Embodiment of this invention is demonstrated using FIG. 9 is a longitudinal sectional view showing a main part of a refrigerator of a fourth embodiment of the present invention. 9 is a view corresponding to FIG. Since this 4th Embodiment differs from 1st Embodiment in the following point, the other point is basically the same as 1st Embodiment, and overlapping description is abbreviate | omitted.

The refrigerator of this 4th Embodiment adds the function which opens the drawer door 9 of the vegetable compartment 5 electrically. To open the drawer door 9 on the front face of the drawer door 9 having a drive unit 70 for electrically opening the drawer door 9 and a connecting means 71 for connecting the drawer door 9. Switch 72 is disposed. Since the drive part 70 of the drawer door 9 is arrange | positioned at the bottom face of the inner casing 22, and is made to protrude toward the foam heat insulating material 23 side from the viewpoint of ensuring an internal volume, between the drive part 70 and the outer casing 21. The thickness of the foam heat insulating material 23 will be reduced. Therefore, in order to suppress deterioration of the heat leakage amount in this part, the vacuum heat insulation panel 50f shape | molded in three-dimensional shape so that the case of the drive part 70 may be arrange | positioned is arrange | positioned. Since the drive part 70 consists of a resin case of a comparatively complicated shape, it arrange | positions the heat buffer member 63 which has flexibility and heat insulation between 50 f of vacuum heat insulation panels. The electric drawer door is not limited to the vegetable compartment, and may be in a freezer compartment or the like.

(5th embodiment)

Next, a refrigerator of a fifth embodiment of the present invention will be described with reference to FIG. It is a perspective view explaining the built-in state of the vacuum heat insulation panel of the refrigerator of 5th Embodiment of this invention. This fifth embodiment differs from the first embodiment in the following points, and other points are basically the same as those in the first embodiment, and overlapping descriptions are omitted.

The refrigerator 1 of this 5th Embodiment arrange | positions the vacuum insulation panel 50 which has cutout in a three-dimensional shape or a part of core material, respectively in the upper surface, both side surfaces, the back surface, and the bottom surface of the heat insulation box 20, respectively. will be. On the upper surface, the same vacuum insulated panel 50a as used in the first embodiment, on the side surface, a pentagonal plate-shaped vacuum insulated panel 50j chamfered with one corner portion of the core material, and on the back side in the same manner as in the third embodiment. The same vacuum insulated panel 50d as that used in the second embodiment was used as the bottom surface of the vacuum insulated panel 50e bent in a substantially inverted c shape along the shape of the outer plate back surface 21b.

Thereby, the core material area of all the vacuum heat insulation panels arrange | positioned at each surface of the heat insulation box 20 can be enlarged. In this 5th Embodiment, it confirmed that the power consumption amount could be reduced about 6% with respect to 1st Embodiment.

The configuration and effects of the above-described embodiment are summarized as follows.

In a refrigerator in which a heat insulating material is arranged in a space formed by an outer casing and an inner casing, each of the top, side, back, and bottom surfaces (including the inclined portion toward the back side) constituting the box has a three-dimensional shape, respectively. By arrange | positioning the molded vacuum insulation panel, the part with a large heat generation amount, for example, in which the compressor etc. are arrange | positioned can be insulated efficiently.

In addition, a heat insulating material is disposed in the space formed by the outer casing and the inner casing, the control board is stored in the recessed end provided in the upper rear part of the outer casing, and the compressor and the condenser are disposed below the rear of the outer casing. In one refrigerator, a three-dimensional vacuum insulation panel is disposed on the inner casing side projection surface of the control substrate and the inner casing side projection surface of the compressor and the condenser, respectively, so that heat generated from the control substrate, the compressor, the condenser, or the like is stored in the refrigerator. Invasion can be suppressed and the heat insulation performance of the refrigerator box body can be improved.

In addition, a heat insulating material is disposed in a space formed by the outer casing and the inner casing, and at least in a refrigerator provided with a cooler and a compressor, a vacuum insulation panel is disposed between the cooler and the compressor to provide a cold portion for cooling the refrigerator. Heat intrusion from the heat generating portion can be effectively suppressed, and the heat insulation performance of the refrigerator box body can be improved as described above.

In addition, a heat dissipation member is disposed in a space formed by the outer casing and the inner casing, the heat dissipation pipe disposed to be in contact with the inner surface of the upper surface of the outer casing, and an electrical component such as a control board or a power board on the rear side of the outer casing upper surface. On the outer casing side to provide a concave end for accommodating a self-heating component such as the same, and to arrange the compressor and the condenser under the outer casing rear surface, and to install at least the internal temperature detecting means in the inner casing bottom. In the refrigerator provided with the protrusion part, the vacuum insulation panel of the substantially Z-shape shape is arrange | positioned so that the projection surface to the inner casing side of the said heat radiating pipe and the said recessed part may be arrange | positioned, and the projection surface to the inner casing side of the said compressor and the condenser will be different. At least a portion of the inner casing Since a recessed part and an inflation part are formed in a pair in the plate thickness direction front and back surface, and the three-dimensional vacuum heat insulation panel which made the board thickness between the said recessed part and an expansion part substantially the same as another part is arrange | positioned, a control board It can suppress heat from heat generated from self-heating parts such as power supply boards, compressors and condensers, and heat from the heat dissipation pipes installed on the ceiling, while efficiently dissipating heat on heat dissipation pipes. It is possible to provide a refrigerator considering the sex.

Further, a three-dimensional vacuum insulation panel along the outer casing or the inner casing shape is disposed on the top, back, and bottom of the outer casing, and the vacuum insulation panel is any one of a rectangular plate shape, a cut shape, and a three-dimensional shape on the side surface. Because of this arrangement, it is possible to arrange the parts in which the vacuum insulation panel cannot be arranged due to problems such as the arrangement of components until now by the three-dimensional shape, the notch shape, and the like, and the thermal insulation performance of the box can be dramatically improved.

A refrigerator provided with a heat insulating material in a space formed by an outer casing and an inner casing, wherein the heat dissipation pipe is disposed to contact the inner surface of the upper surface of the outer casing, and a control board or a power supply board on the rear side of the upper casing upper surface. A concave end for accommodating self-heating parts, such as an electrical component, is provided, and a three-dimensional vacuum insulated panel bent to span the projection surface of the heat dissipation pipe and the inner casing side of the concave end is disposed. A three-dimensional vacuum insulated panel bent to span a heat dissipation pipe disposed to be in contact with the inner surface of the casing rear side is disposed, and each vacuum insulated panel has a different three-dimensional shape, and heat absorbs between each of the vacuum insulated panel and the heat dissipation pipe. Do not transfer heat from the heat dissipation pipe directly to the vacuum insulation panel because it is fitted In order to suppress the deterioration of the thermal insulation performance of the vacuum insulation panel by heat over time, it is possible to maintain the thermal insulation performance over a long period of time. In addition, since the area per vacuum insulating panel can be increased by making a three-dimensional shape that covers the heat dissipation pipe, the heat bridge influence of the shell material is reduced, which is advantageous in terms of heat insulation performance. Therefore, the thickness of the heat insulating material between the outer casing and the inner casing is reduced. It is possible to improve the thermal insulation performance without increasing.

Further, a drawer door having a plurality of doors on the front face of the outer casing, at least the lowermost end of which is electrically open or closed, or a transmission unit that opens or closes, is disposed, and the electric power unit is located on the bottom of the inner casing side of the inner casing. In the refrigerator arranged in the state which the drive part of protruded, Since the three-dimensional vacuum insulation panel was arrange | positioned so that the said drive part may be covered, heat insulation with the bottom face of the outer casing by the protrusion of the drive part of the said electric unit By covering the thin part completely with the three-dimensional vacuum insulation panel, the thermal insulation performance can be significantly improved. Moreover, it also has the effect of insulating the operation sound which arises from a drive part.

In addition, the vacuum insulation panel is a synthetic resin in which a core material which is temporarily compressed and covered with an inner bag made of a synthetic resin film is covered with a fiber laminate having at least repulsion with respect to the compression direction, and at least a heat welding layer and a gas barrier film. A laminate film having a gas barrier layer formed by combining two or more films is composed of an outer shell in which end portions are welded to face the heat-welding layers, and the ears of the inner bag are disposed in the ears of the outer shell material, and Since the inside is sealed under reduced pressure after releasing the sealing of the inner bag, it does not contain a binder and has a feature of good recycling performance.

Further, since the three-dimensional shape of the vacuum insulated panel is formed in the shape having the uneven portion in the bending or sheet thickness direction, the plate thickness of the bent portion and the uneven portion is substantially the same as the plate thickness of the other portions, and therefore Since there is no deterioration of heat insulation performance, there is no decrease in thickness, and the heat insulation performance of a vacuum insulation panel can be exhibited efficiently, and the energy saving of a refrigerator is improved. Since the core material has a repulsive property with respect to the compression direction and uses a fiber aggregate without a hardened layer by a binder or the like, the core material can be made almost the same as the sheet thickness before processing even without bending or uneven processing. It is. For example, in order to bend-mold a core material made of an inorganic fiber into a sheet-shaped molded body as in Patent Document 1, processing of a groove serving as a starting point of bending is required. In the vacuum insulation panel of the present embodiment, the core material is molded. Since it is not, it has flexibility, and it can shape | mold easily the shape of a substantially L-shaped bend, the approximately Z-shaped bend, or the part which pairs a recessed part and an expansion part easily comparatively easily. Since the bending portion does not require processing such as grooves, a portion where the thickness of the core material becomes thinner does not occur, and there is no portion where the thermal insulation performance deteriorates. As a method and a means of shaping | molding to these three-dimensional shape, in order to reduce the generation | occurrence | production of the distortion to a film about two or more places, it is preferable not to bend several places simultaneously, but to perform bending processing sequentially.

In addition, in the present invention, the self-heating component refers to a component such as a control board or a power supply board, an electric component such as a control board, a power board, a compressor, a compressor, a condenser, a heat radiation pipe, and the like, in which the temperature rises and becomes a high temperature during operation of the refrigerator. It is not.

1 is a front view of a refrigerator of a first embodiment of the present invention.

2 is a cross-sectional view taken along line A-A of FIG.

3 is an enlarged view of a portion B in FIG. 2;

4 is an enlarged view of a portion C in FIG. 2;

FIG. 5 is a sectional view showing a basic shape of the vacuum insulation panel in FIG. 1; FIG.

Fig. 6 is a cross sectional view of a refrigerator of a second embodiment of the present invention;

Fig. 7 is a longitudinal sectional view of the refrigerator of the third embodiment of the present invention.

8 is a cross-sectional view taken along line X-X in FIG.

9 is a longitudinal sectional view showing a main part of a refrigerator of a fourth embodiment of the present invention;

10 is a perspective view illustrating a built-in state of a vacuum insulated panel of a refrigerator of a fifth embodiment of the present invention.

11 is a longitudinal sectional view of the refrigerator of Comparative Example 1. FIG.

12 is a longitudinal cross-sectional view of the refrigerator of Comparative Example 2. FIG.

<Explanation of symbols for the main parts of the drawings>

1: refrigerator

2: cold storage room

3a: Ice making room

3b: upper freezer

4: lower freezer

5: vegetable room

6a, 6b: cold storage door

7a: Ice room door

7b: upper freezer door

8: lower freezer door

9: vegetable compartment door

10: door hinge

11: packing

12, 14: insulation partition

13: partition member

15: machine room

20: thermal insulation box

21: outer casing

22: inner casing

23: foam insulation

27: blower

28: cooler

30: compressor

31: condenser

33: expanded polystyrene

40: concave end

41: electrical components

42: cover

45: high light

45a: case

48: high temperature detection means

48a: protrusion

50, 50a, 50b, 50c, 50d, 50e, 50f, 50g, 50x: vacuum insulation panel

51: core material

52: inclusion

53: shell material

54: adsorbent

60: heat dissipation pipe

60a: aluminum tape

62: adhesive member

63: heat buffer member

70: drive unit

71: connection means

72: switch

Claims (13)

In the refrigerator formed in the space formed by the outer casing and the inner casing and along the outer casing or the inner casing, and the vacuum insulating panel is filled with the foam insulating material in the space to form a heat insulating box, As said vacuum heat insulation panel, what has the flexibility which enclosed the core material which consists of a fiber aggregate which does not contain a binder with the outer cover material which consists of a gas barrier film, and pressure-reduced the inside thereof, The vacuum insulated panel is formed into a three-dimensional shape that conforms to the three-dimensional shape of the outer casing or the inner casing by bending the sheet thickness in almost the same state using the flexibility of the vacuum insulating panel without forming grooves in the panel surface. , A plurality of types of three-dimensional vacuum insulating panels each corresponding to three-dimensional shapes of the outer casing or the inner casing are provided in the plurality of locations. The machine room according to claim 1, wherein a recessed end portion for accommodating a control substrate as a self-heating component is formed in a rear portion of the upper surface of the heat insulation box, and a machine room for storing a compressor as a self-heating component in a rear portion of the bottom surface of the heat insulation box. And a three-dimensional vacuum insulated panel fitted to the concave end and the machine room. The said three-dimensional vacuum insulation panel corresponding to the said recessed part is provided along the inner side of the upper surface of the said outer casing, and the said three-dimensional vacuum insulation panel corresponding to the said machine room is provided in the said inner casing. Refrigerator characterized in that installed along the inside. The refrigerator according to claim 3, further comprising a cooler provided in a rear portion of the inside of the machine room located directly above the machine room, wherein the three-dimensional vacuum insulation panel is disposed between the cooler and the compressor. 3. The heat dissipation pipe according to claim 2, further comprising a heat dissipation pipe in contact with an upper surface of the outer casing positioned in front of the concave end portion, wherein the vacuum insulated panel has a three-dimensional shape bent in two stages to span the concave end portion and the heat dissipation pipe. And an entire surface of one side of the three-dimensional vacuum insulated panel is attached to the upper surface of the outer casing via an adhesive member having flexibility and heat insulation. The refrigerator according to claim 5, wherein a sheet member made of polyethylene foam having a double-sided pressure-sensitive adhesive is used as the adhesive member. The rear surface of the outer casing is composed of a rear flat portion and a rear inclined portion extending obliquely forward from both left and right sides thereof and extending upward and downward in contact with corner portions of the rear flat portion and the rear inclined portion. A heat dissipation pipe is provided, and the vacuum insulation panel is bent to span the rear flat portion, the heat dissipation pipe, and the rear inclination portion to have a wide three-dimensional shape, and between the three-dimensional vacuum insulation panel and the heat dissipation pipe. Refrigerator characterized in that the polyethylene foam sheet material having flexibility and insulation. A part of said inner casing is provided with the protrusion part which protrudes to the said space side, The internal temperature detection means is provided in the said protrusion part, The recessed part and the expansion part are respectively provided in the plate thickness direction front and back surface of the said vacuum insulation panel. The refrigerator is formed in a pair, and the said board | plate part is accommodated in the said recessed part of this vacuum insulation panel so that the plate | board thickness between the said recessed part and the said expansion part may be substantially the same as the other part. A meandering heat dissipation pipe is provided on at least one surface of said outer casing, and a recessed part and an expanded part are formed in the plate thickness direction front and back, respectively, and between the said recessed part and the said expanded part A refrigerator, characterized in that the heat dissipation pipe is accommodated in the concave portion of the three-dimensional vacuum insulation panel having the same plate thickness as the other portions. 2. The power supply unit according to claim 1, further comprising: a plurality of doors on the front face of the heat insulating box, and a transmission unit that opens, closes, or opens and closes the lowermost door among the plurality of doors; It protrudes and installs the drive part of a transmission unit, and forms a pair of recessed part and an expansion part in the plate thickness direction front and back surface of the said vacuum insulation panel, and also makes the plate | board thickness between the said recessed part and the said expansion part different from the other part. A refrigerator, characterized in that, in substantially the same way, the drive portion is accommodated in the recess of the vacuum insulation panel. In the space formed by the outer casing and the inner casing, along with the outer casing or the inner casing, a vacuum insulation panel is disposed, and at the same time a foam insulating material is filled in the space to form a thermal insulation box, and the outer casing or the inner casing In the refrigerator provided with the part or member which protrudes inwardly of a casing, A core material having a flexibility composed of a fiber aggregate not containing a binder is used as the core material of the vacuum insulation panel, The heat dissipation pipe of a refrigerating cycle is arrange | positioned at the back surface side of the said outer casing, By utilizing the flexibility of the core material, a pair of recesses and expansion portions are formed on the front and rear surfaces of the vacuum insulation panel, respectively, and the plate thickness between the recesses and the expansion portions is substantially the same as the other portions. Using three-dimensional vacuum insulation panel, The said heat radiating pipe was accommodated in the said recessed part of the said vacuum insulation panel, The refrigerator characterized by the above-mentioned. The rear plate of the outer casing comprises a rear flat portion and a rear inclined portion extending obliquely forward from both left and right sides thereof and extending upward and downward in contact with a corner portion of the rear flat portion and the rear inclined portion. A heat dissipation pipe is provided, and the vacuum insulation panel is formed into a three-dimensional shape that is widened and bent to cover the rear flat portion, the heat dissipation pipe, and the rear inclination portion, and the three-dimensional vacuum insulation panel and the heat dissipation pipe are formed. A refrigerator comprising a sheet member made of polyethylene foam having flexibility and heat insulating properties therebetween. The said vacuum heat insulation panel consists of the said core material which consists of an inorganic fiber laminated body which has repulsion with respect to a compression direction, and the synthetic resin film which covered this core material and was compressed and sealed. And a laminate film formed by forming an inner material, a thermal welding layer, and a gas barrier film, and covering the core material and the inner material and sealing the inner pressure to seal the inside of the refrigerator.

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