WO2005121669A1 - 冷蔵庫 - Google Patents
冷蔵庫 Download PDFInfo
- Publication number
- WO2005121669A1 WO2005121669A1 PCT/JP2005/010395 JP2005010395W WO2005121669A1 WO 2005121669 A1 WO2005121669 A1 WO 2005121669A1 JP 2005010395 W JP2005010395 W JP 2005010395W WO 2005121669 A1 WO2005121669 A1 WO 2005121669A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refrigerator
- heat insulating
- compartment
- heat
- insulating material
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
- F25D23/062—Walls defining a cabinet
- F25D23/063—Walls defining a cabinet formed by an assembly of panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/06—Damage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
- F25D2201/14—Insulation with respect to heat using subatmospheric pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/003—General constructional features for cooling refrigerating machinery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/002—Details for cooling refrigerating machinery
- F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
- F25D2323/00262—Details for cooling refrigerating machinery characterised by the incoming air flow through the back top side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/002—Details for cooling refrigerating machinery
- F25D2323/0027—Details for cooling refrigerating machinery characterised by the out-flowing air
- F25D2323/00275—Details for cooling refrigerating machinery characterised by the out-flowing air from the front top
Definitions
- the present invention relates to a refrigerator having a compressor mounted on a top surface.
- refrigerators have been further reduced in energy consumption from the viewpoint of global environmental protection, and are required to be improved in operability and storability.
- Conventional refrigerators of this type have a recessed part in which the back of the top of the storage room of the heat-insulating box is lowered so as to increase the storage capacity of the storage room located at the bottom.
- a method has been adopted in which the components of the refrigeration cycle are stored in the recess. For example, it is disclosed in Japanese Patent Application JP-A-2001-99552.
- FIG. 15 shows a configuration of a conventional refrigerator described in the above patent document.
- the heat-insulating box 1 has a refrigerator compartment 2, a freezer compartment 3, and a vegetable compartment 4 in order from the top, and a refrigerator compartment rotating door 5 is provided at the front opening of the refrigerator compartment 2.
- the freezer compartment 3 and the vegetable compartment 4 located below the center of the heat insulation box 1 are drawer-type freezer compartment drawer doors 6 and vegetable compartment drawer doors that can be easily taken out in consideration of storability and ease of use. 7 is provided.
- a plurality of storage shelves 8 are provided in the refrigerator 2, and a storage container 9 having an open top surface is attached to the freezer 3 and the vegetable room 4.
- the storage container 9 is supported by rollers (not shown) in the front-rear direction so as to be movable in the front-rear direction by rollers.
- the concave portion 10 provided in the heat insulating box 1 is a portion in which the rear portion of the top surface extending between the upper surface 11 of the outer case and the rear surface 12 of the outer case 12 is recessed so that the rear portion of the uppermost portion of the refrigerator compartment 2 is lowered. .
- the recess 10 is closed on the left and right sides by the left and right walls of the heat-insulating box 1 and is open upward and behind.
- the opening of the recess 10 is formed by the upper plate 13 and the back almost at right angles to this. It is covered with a concave cover 15 composed of a plate 14.
- the recess cover 15 is detachably fixed to the heat-insulating box 1 with screws or the like.
- the compressor 16 and the condenser 17, which are components of the refrigeration cycle, are disposed together with the machine room fan 18 so as to be accommodated in the recess 10 and covered with a recess cover 15. Also dent The upper plate 13 and the back plate 14 of the unit cover 15 are provided with a plurality of ventilation holes (not shown) for heat radiation.
- the evaporator 20, which is a component of the refrigeration cycle, is provided with a cooling fan 21 at the rear of the freezing room 2, and the vegetable room 4, which is the lowermost storage room, is formed deep.
- the inner volume of the vegetable compartment 4 can be configured to be larger and deeper than that in which the compressor 16 and the condenser 17 are stored in the lower rear portion of the heat insulating box 1.
- the drawer-type shell storage room is usually designed to be removable, when the drawer-type storage room at the bottom is removed, the weight of the lower part of the heat-insulating box body is reduced, and the tip-over storage unit is overturned. It is easier to do. Stabilization of the lower drawer storage room, which has such a large weight change, is a particularly important issue for the prevention of falls.
- the refrigerator of the present invention has the following configuration. At least two or more heat-insulating compartments with a compressor arranged on the top surface are provided in the vertical direction.
- the heat-insulating box has an inner box, an outer box, a foam insulator, and a denser than the foam insulator. Large, vacuum insulation material, heat insulation Vacuum placed below the lower end face of the uppermost insulation section than the total weight or volume of the vacuum insulation placed above the lower end face of the uppermost insulation section located at the top of the section The total weight or volume of the insulation is large.
- FIG. 1 is a schematic front view of a refrigerator according to Embodiment 1 of the present invention.
- FIG. 2 is a schematic sectional view of a refrigerator according to Embodiment 2 of the present invention.
- FIG. 3 is a schematic sectional view of a refrigerator according to a third embodiment of the present invention.
- FIG. 4 is a cross-sectional view of a vacuum heat insulating material according to Embodiment 3 of the present invention.
- FIG. 5 is an exploded view of a refrigerator according to Embodiment 3 of the present invention, excluding a front door portion.
- FIG. 6 is a schematic sectional view of a refrigerator in a tilted state according to Embodiment 3 of the present invention.
- FIG. 7 is a schematic sectional view of a refrigerator according to a fourth embodiment of the present invention.
- FIG. 8 is a schematic sectional view of a refrigerator in a fifth embodiment of the present invention.
- FIG. 9 is a schematic sectional view of a refrigerator according to a sixth embodiment of the present invention.
- FIG. 10 is a schematic front sectional view of a refrigerator according to Embodiment 7 of the present invention, excluding a front door portion.
- FIG. 11 is an exploded view of a refrigerator excluding a front door portion according to a seventh embodiment of the present invention.
- FIG. 12 is a schematic sectional view of a refrigerator according to an eighth embodiment of the present invention.
- FIG. 13 is a schematic front view of a refrigerator according to an eighth embodiment of the present invention.
- FIG. 14 is an exploded view of a refrigerator according to Embodiment 8 of the present invention, excluding a front door portion.
- FIG. 15 is a schematic sectional view of a conventional refrigerator.
- FIG. 1 is a schematic front view of a refrigerator according to Embodiment 1 of the present invention.
- the heat insulation box 101 is divided into two heat insulation sections, and the upper and lower parts are of a revolving door type, with a refrigerator compartment 102 at the top and a freezer compartment 103 at the bottom.
- Each of the heat insulation compartments is provided with a heat insulation door, and a refrigerating room revolving door 105 and a freezing room revolving door 106 are provided from above.
- the refrigerator compartment rotating door 105 is provided with a door pocket 134 as a storage space, and a plurality of storage shelves 108 are provided in the refrigerator.
- the refrigeration cycle includes a compressor 116 and a condenser 117 arranged in the upper part 150 of the top surface, a cab (not shown) serving as a pressure reducer, and an evaporator (not shown) arranged inside the refrigerator. ) And are connected in a ring.
- the lower end line 145 of the uppermost heat insulation section (the refrigerator compartment 102) is defined.
- This lower end surface line 145 is a vertical center line of the partition wall 104 that partitions the refrigerator compartment 102 and the freezer compartment 103.
- the compressor 116 and the condenser 117 which are the heavy components among the refrigerator components, are housed in the refrigerant pipe, so that the refrigerator has a center of gravity position.
- the center of gravity moves downward to prevent falling.
- the vacuum heat insulating material 125 uses an inorganic material, urethane or the like used at the top is used.
- the density is higher than that of the foam insulation 115. While the density of the foam insulation 115 is 20 to 50 kg / m 3 , the vacuum insulation 125 is 200 to 250 kg / m 3, which is at least four times higher.
- a change in the position of the center of gravity is suppressed by making the refrigerator upper and lower stages revolving doors such as drawer-type doors that do not allow the contents in the refrigerator to move to the outside of the refrigerator.
- stability against falling can be improved.
- FIG. 2 is a schematic sectional view of a refrigerator according to Embodiment 2 of the present invention.
- the heat-insulating box 201 is divided into two heat-insulating sections.
- the heat-insulating box 201 has a revolving door at the upper part and a drawer door at the lower part.
- Each heat insulation section is provided with a heat insulation door, and a refrigerating room revolving door 205 and a freezing room drawer door 206 from above.
- the refrigerator compartment rotating door 205 and the freezer compartment drawer door 206 are provided with a refrigerator compartment shelf 260 and a freezer compartment storage case 261 as storage spaces.
- the refrigeration cycle includes a condenser 217 provided on the first top panel 250 and a second ceiling formed at a position lower than the first top panel 250 behind the refrigerator of the first top panel 250.
- the compressor 216 disposed on the surface 251, a cab (not shown) as a decompressor, and an evaporator 220 disposed inside the refrigerator are connected in a ring shape.
- FIG. 3 is a schematic cross-sectional view of a refrigerator according to Embodiment 3 of the present invention
- FIG. 4 is a cross-sectional view of a vacuum heat insulating material
- FIG. 5 is a plane development excluding a front door portion of the refrigerator.
- FIG. 6 is a schematic sectional view of the refrigerator when tilted.
- a heat insulating box 301 has a foam insulating material 324 in a space formed by an inner box 322 formed by vacuum-molding a resin body such as ABS and an outer box 323 using a metal material such as a pre-coated steel plate. It is equipped with a heat-insulating wall made by injecting water.
- the foam insulation 324 for example, rigid urethane foam, phenol foam, styrene foam, or the like is used. It is more preferable to use a carbon-based cyclopentane as a foam material from the viewpoint of preventing global warming.
- a vacuum heat insulating material 325 is adhered to the outer box side by using an adhesive member (not shown). Further, the vacuum heat insulating material 325 needs to have a thin planar shape in order to be disposed within the wall thickness of the heat insulating box 301. Further, the adhesive member such as hot melt is applied to the entire surface of the vacuum heat insulating material 325 to prevent air from entering the adhesive portion.
- the vacuum heat insulating material 325 is foamed integrally with the foam heat insulator 324 to form the heat insulation box 301, and has a heat insulation performance 5 to 20 times that of the foam heat insulator 324 to improve the performance. It is.
- the vacuum heat insulating material 325 is composed of a ceramic fiber molded body 326 which is an aggregate of sheet-like inorganic fibers and a gas barrier finolem 327 made of a plurality of materials surrounding the periphery. This is a flat heat insulating material whose inside is decompressed.
- the gas barrier film 327 maintains the decompressed state by welding the welded portion 328 after decompression. Since the end of the film that requires the welding portion 328 is longer than the other sides, it is folded back and fixed with an adhesive member (not shown).
- the vacuum heat insulator 325 uses an inorganic material, it has a higher density than the foam heat insulator 324. It becomes The density of the foam insulation 324 is 20 to 50 kg / m 3 , whereas that of the vacuum insulation 325 is 200 to 250 kg / m 3, which is at least 4 times or more. Further, the thickness of the sheet-shaped ceramic fiber molded body 326 can be easily changed by laminating a plurality of sheets having a predetermined thickness.
- the vacuum heat insulating material 325 having such a configuration is excellent in workability such as bending, grooving, and irregular shape, so that the vacuum heat insulating material 325 has a high degree of freedom in arrangement in the heat insulating box, and is focused on the lower part of the heat insulating box. Suitable for installation.
- it since it is sheet-shaped, a plurality of thin sheets can be formed as necessary, and the thickness can be adjusted as needed, which is effective for changing the volume of the vacuum heat insulating material.
- inorganic fibers are used, the long-term reliability of the heat-insulating box is improved because the generation of gas over time in the vacuum heat-insulating material is small.
- the heat-insulating box 301 is divided into a plurality of heat-insulating compartments, and the door of the uppermost heat-insulating compartment is of a rotating door type, and the door of the lowermost heat-insulating compartment is of a drawer type.
- a refrigerator room 302 From the top, a refrigerator room 302, a drawer-type switching room 329 and an ice making room 330 arranged side by side, a drawer-type vegetable room 304, and a drawer-type freezer room 303 at the bottom.
- Each heat insulation section is provided with a heat insulation door via a gasket 331.
- the refrigerator compartment rotating door 305 is provided with a door pocket 334 as a storage space, and a plurality of storage shelves 308 are provided in the refrigerator.
- a storage case 335 is provided at the bottom of the refrigerator compartment 302.
- the refrigerator compartment 302 is set in a refrigerator temperature range with a lower limit of a temperature at which the refrigerator does not freeze for refrigeration, and is usually set at a temperature of! To 5 ° C.
- the storage case 335 is set at a relatively low temperature, for example, -3 to 1 ° C to improve the freshness of meat and fish.
- Vegetable room 304 is often set at 2 ° C to 7 ° C, which is the same as or slightly higher than refrigerator room 302. The lower the temperature, the longer the freshness of leafy vegetables can be maintained.
- the temperature setting of the switching room 329 can be changed by a user's setting, and can be set to a predetermined temperature from the freezing room temperature zone to the refrigeration and vegetable room temperature zone.
- the ice making room 330 is an independent ice storage room, which is provided with an automatic ice making device (not shown), and automatically prepares and stores ice. To preserve ice, the temperature is in the freezing temperature range. Therefore, it is possible to set the refrigeration temperature relatively higher than the refrigeration temperature zone.
- the freezer compartment 303 is set in a freezing temperature range for freezing and preservation, and is usually set at a temperature of 22 18 ° C. It may be set at a low temperature of C.
- the heat insulating box 301 is provided with a first recess 310 in which a rear portion of the top surface is recessed. Also, a second recess 336 is provided on the lower back wall of the first recess 310.
- the refrigeration cycle is configured by annularly connecting a compressor 316, a condenser (not shown), a cavity as a decompressor, and an evaporator 320 provided in the first recess 310.
- the evaporator 320 is subjected to forced convection heat exchange by a cooling fan 321.
- the condenser (not shown) may be cooled by forced air using a fan, or may be a natural air-cooled type with good heat transfer attached to the inside of the outer box 323.
- a pipe for preventing drip-proofing may be combined with a partition between the bodies.
- a flow path control means such as an electric three-way valve
- a plurality of evaporators can be selectively used according to a partition configuration and a temperature setting configuration, a plurality of cabrils can be switched, and the compressor 316 is stopped. You can also cut the gas.
- the control board 337 for operating the refrigeration cycle is disposed in the second recess 336 in a hermetically closed manner with a removable cover. Further, the first recess 310 is also substantially removably sealed with a back cover 315.
- the evaporator 320 which is a component of the refrigeration cycle, is provided together with the cooling fan 321 on the back of the vegetable compartment 304 located at the middle stage. This makes it possible to maximize the internal volume and depth of the freezer compartment 303, which is the lowermost storage compartment.
- middle vegetable compartment 304 and the lowermost freezer compartment 303 are configured in the opposite configuration, it is possible to maximize the internal volume and depth of the vegetable compartment 304.
- the vacuum heat insulating material 325 is attached to both sides 339, the back 340, and the bottom 341 of the heat insulating box 301 so as to cover almost the entire side and back of the storage room. Has been established.
- a line indicating the lower end surface of the refrigerator compartment 302, which is a revolving door type storage compartment located at the top, is shown. From 5, the vacuum heat insulating material 325 attached to the upper part is indicated as L2, and the vacuum heat insulating material 325 attached to the lower part is indicated as L1.
- the lower end surface line 345 of the refrigerator compartment 302 actually points to the vertical center line of the partition wall that partitions the refrigerator compartment 302 and the lower storage compartments, ie, the switching compartment 329 and the ice making compartment 330.
- the bonding position and size are determined so that the total area of the lower vacuum heat insulator L1 is larger than the total area of the upper vacuum heat insulator L2.
- the back surface 340 of the heat insulating box 301 is provided with a first concave portion 310 in which a compressor 316 is disposed, and a second concave portion 336 in which a control substrate 337 is disposed. It is arranged up to the height of the second recess 336.
- the vacuum insulation material 325 used for both sides 339 has the same dimensions as the back side for rationalization.
- the bottom surface 341 is provided with four casters 342 serving as support points for the installation of the refrigerator, and the vacuum heat insulating material 325 is attached to the outer box 323 as far as possible without dimensions.
- the casters 342 have the maximum caster dimension increased to improve stability.
- the operation and action of the refrigerator configured as described above will be described below.
- the refrigeration cycle is operated by a signal from the control board 337 according to the temperature set in the refrigerator, and the cooling operation is performed.
- the high-temperature and high-pressure refrigerant discharged by the operation of the compressor 316 radiates heat in the condenser to be condensed and liquefied, and is decompressed by the cabillaries to become a low-temperature and low-pressure liquid refrigerant and reaches the evaporator 320.
- cooling fan 321 By the operation of cooling fan 321, heat is exchanged with the air in the refrigerator, and the refrigerant in evaporator 320 evaporates. Each room is cooled by distributing low-temperature cold air with a damper (not shown). When a plurality of evaporators or decompressors are used, the refrigerant is supplied to the necessary evaporator 320 by the flow path control means. The refrigerant exiting the evaporator 320 is sucked into the compressor 316. The interior of the refrigerator is cooled by repeating the cycle operation in this manner.
- the first concave portion 310 at the rear of the top surface of the heat insulating box 301 accommodates a compressor 316 and a condenser (not shown), which are relatively heavy among the components of the refrigerator, and a refrigerant pipe.
- the refrigerator has a higher center of gravity and is more likely to fall.
- a refrigerator normally supported at four points on the floor by casters 342 or the like requires a center of gravity outside four perpendicular lines 343 extending in the direction of gravity from each support point. The possibility of falling occurs. Also, the higher the center of gravity, the more likely it is that the refrigerator will fall at a small inclination angle 344 with respect to the installation inclination of the refrigerator or the inclination of the refrigerator due to external force.
- the position of the center of gravity of the refrigerator cannot be specified because it differs depending on the storage condition because the refrigerator is used by putting stored items in the refrigerator.
- the refrigerator is intended to prevent falling as described below.
- the lower end line 345 of the refrigerator room 302 which is the upper storage room is approximately 700 to 1200 mm from the installation surface. If it is higher, the drawer-type storage room becomes very difficult to use.
- the size of the opening dimensions of the I-type storage room is about 1000 mm, which is often about 1000 mm.
- the depth of the refrigerator is approximately 600 to 700 mm, and an intersection 347 between the center line 346 of 1Z2 of the depth of the refrigerator and the bottom line 345 of the refrigerator compartment 302 is defined.
- an intersection 347 between the center line 346 of 1Z2 of the depth of the refrigerator and the bottom line 345 of the refrigerator compartment 302 is defined.
- the floor inclination angle 344 is about 12
- the intersection point 347 will be located outside the vertical line 343 in the direction of gravity extended from the support point at °.
- the area where the vacuum heat insulating material L1 below the lower end surface line 345 of the refrigerator compartment 302 is disposed is larger than the area where the upper vacuum heat insulating material L2 is disposed.
- it can be increased in a stable direction.
- the refrigerator of the present embodiment if the installation angle assumed when the refrigerator is installed by increasing the weight of disposing the vacuum insulation material below is 0 ° to: 10 °, the refrigerator is Can be located inside the vertical line 343 extending in the direction of gravity extending from the support point.
- the refrigerator upper stage is a revolving door type in which the items stored in the refrigerator do not move to the outside of the refrigerator, a change in the position of the center of gravity of the upper stage, which is most affected, can be suppressed, and stability against overturn can be improved. S power.
- the weight of the compartment of the drawer-type storage room varies greatly due to opening and closing and removal of the door.
- the vacuum insulation material 325 mainly on the insulation wall around the drawer storage room where the weight fluctuation is large, the body weight of the heat insulation box 301 can be increased and the weight fluctuation can be reduced. Can be stabilized against falling.
- the weight of vacuum heat insulating material 325 provided below is increased, and freezing room 303, vegetable room 304 and the like, which are drawer-type storage rooms at the bottom, are provided at the lower front. Even when a load is applied, the heaviest compressor 316 among the components of the refrigeration cycle draws out the load force of the freezer room 303, vegetable room 304, etc., which is a drawer-type storage room. Position, the change in the center of gravity when pulling out the freezer compartment drawer door 306 and the vegetable compartment drawer door 307, which are drawer-type doors, can be suppressed. Can be further improved.
- the freezer compartment 303, the vegetable compartment 304, etc. which are the drawer-type storage compartments, are opened, the weight of the heat insulation casing 301 is reduced even if the storage room structural parts and the storage items are located outside the heat insulation casing 301. Since it is possible to increase the amount of calories, stability against falling in the forward direction is improved.
- the structure of the lower end of the heat insulating box 301 can be configured with a simple wall surface because there are no refrigeration cycle components such as the compressor 316, and a flat vacuum heat insulating material 325 is disposed on each wall from the bottom end. It is possible to do. This makes it possible to dispose the vacuum heat insulating material 325 with low cost and low man-hour.
- the bottom line 345 of the refrigerator compartment is treated as the center line of the heat insulating box 301 in the height direction 1/2 for stable operation. It is even better to try.
- the vacuum heat insulating material 325 is formed by bending the vacuum heat insulating material 325 stuck on both sides 339 and the back surface 340, or the bottom surface 341 and the back surface 340.
- the number of vacuum heat insulating materials 325 used can be reduced and the number of man-hours can be reduced.
- the total area of the vacuum heat insulating material L2 attached to the upper part from the lower end line 345 of the refrigerator compartment 302, which is the revolving door type storage room located at the uppermost part, is attached to the lower part.
- the vacuum insulation material L1 is configured to be smaller than the total area of the attached vacuum insulation material, it is possible to further develop this concept considering the cost-effectiveness as a product
- the refrigerator compartment 302 which is the uppermost heat insulating compartment, and only the lower heat insulating compartment is provided with, for example, but not limited to, the freezing compartment 303, the switching compartment 329, and the like.
- a configuration in which the vacuum heat insulating material 325 is provided only in each of the ice chambers 330 is also possible.
- the refrigeration compartment 302 which is a section of the refrigeration temperature zone with a small temperature difference from the outside air temperature, does not place an emphasis on improving the heat insulation properties, and does not intentionally provide the vacuum heat insulator 325, but rather vacuum heat insulation.
- the vacuum insulation material 325 is focused on each of the freezing room 303, the switching room 329, and the ice making room 330, which are the lower compartments having a freezing temperature zone having a large temperature difference from the outside air temperature.
- FIG. 7 is a schematic sectional view of a refrigerator according to Embodiment 4 of the present invention.
- the thickness of the vacuum heat insulating material 448 provided on the bottom surface of the heat insulating box 401 is increased. Therefore, it is possible to increase the volume of the vacuum heat insulating material disposed below the refrigerator compartment lower end face line 445. Increasing the volume by increasing the volume of the lower vacuum insulation increases stability against falls.
- vacuum heat insulating materials 425 and 448 are the same as vacuum heat insulating material 325 described in Embodiment 3 with reference to FIG.
- Ceramic fiber which is a sheet-like inorganic fiber aggregate inside This is a planar heat insulating material composed of a molded body and a gas barrier film made of a plurality of materials covering the periphery thereof, and having a reduced pressure inside. Therefore, the thickness can be easily changed by using a plurality of molded sheets of the sheet-shaped ceramic fiber in a stacked manner, which is advantageous when a plurality of thicknesses are used.
- vacuum insulating materials having the same thickness When vacuum insulating materials having the same thickness are used, a plurality of vacuum insulating materials may be stacked and used. This is advantageous for preventing deformation due to air mixing or the like.
- FIG. 8 is a schematic sectional view of a refrigerator according to Embodiment 5 of the present invention.
- a freezer compartment 503 having a freezer compartment drawer door 506 is provided at the bottom of the heat insulating box 501.
- the evaporator 520 and the cooling fan 521 are disposed at the lowermost part of the heat insulating box 501 behind the freezing room 503.
- flat vacuum heat insulating materials 525 are provided on both sides, the back surface, and the bottom surface corresponding to the periphery of the freezer compartment 503.
- the vacuum heat insulating material 525 is composed of a ceramic fiber molded body which is a sheet-like inorganic fiber aggregate having a higher density than the foamed heat insulator 524 and a gas barrier film made of a plurality of materials surrounding the ceramic fiber molded body. The pressure inside is reduced.
- a large temperature difference and a freezing room 503 are arranged in a section having a heat insulating wall in which the vacuum heat insulating material 525 having high heat insulating performance is mainly disposed, so that both of the overturn prevention and the energy saving can be effectively achieved. I can do it.
- FIG. 9 is a schematic sectional view of a refrigerator according to Embodiment 6 of the present invention.
- the refrigeration cycle was provided by a compressor 616 arranged in the rear part 650 on the top, a condenser 670 arranged in the space at the bottom of the refrigerator, and a cabinet (not shown) as a decompressor, and further arranged inside the refrigerator. It is configured by connecting the evaporator 620 in a ring shape.
- the upper storage room of the insulated box 601 is a refrigerator room 602 and has a refrigerator door 605, and the lower storage room is a freezer room 603 and has a freezer drawer door 606. It is a drawer type storage room.
- the vacuum heat insulating material 625 is attached so as to cover almost the entire surface of the freezing room 603 which is a drawer type storage room provided at the lower part of the heat insulating box 601.
- the vacuum heat insulating material 625 is provided also on the heat insulating wall between the refrigerator compartment 602 and the freezer compartment 603.
- FIG. 10 is a schematic front sectional view of a refrigerator according to Embodiment 7 of the present invention, excluding a front door portion.
- Fig. 11 shows an exploded view of the refrigerator excluding the front door.
- a compressor 716 is provided on a top surface of a heat insulating box 701.
- the upper storage room is a refrigerator room 702 used in the refrigeration temperature zone
- the lower storage room is a freezer room 703 used in the freezing temperature zone.
- Refrigerator 702 and freezer 703 have the same wall thickness made of foamed heat insulating material 715 such as urethane.
- the wall thickness of the freezing room 703 is, for example, about 5 mm to 30 mm thicker than that of the refrigerator room 702. Configuration.
- the arrangement position of the vacuum heat insulating material 725 will be described based on a development view of the heat insulating box 701 in FIG.
- the vacuum heat insulating material 725 is attached to both sides 739 and the back 740 and the bottom surface 741 of the heat insulating box 701 so as to cover almost the entire side and back of the storage room, and is disposed upward with reference to the lower part of each surface. Has been established.
- the vacuum heat insulating material 725 is attached only to the lower portion from the lower end line 745 of the upper storage room 702.
- the vacuum heat insulating material 725 is attached so as to cover almost the entire lower part of the refrigerator excluding the door, the position of the center of gravity of the refrigerator excluding the door can be significantly lowered, and the possibility of falling down can be reduced. Stability can be improved. Furthermore, since the wall thickness of the lower storage room 703 is made thicker than the upper portion, the center of gravity can be kept low, and the stability against falling can be improved.
- the refrigerator room 702 which is a section of the refrigeration temperature zone having a small temperature difference from the outside air temperature, does not place an emphasis on the improvement of the heat insulating property and does not dare to dispose the vacuum heat insulating material 725. Rather, the absence of the vacuum insulation material 725 suppresses the shift of the center of gravity of the refrigerator to the upper part, thereby realizing the benefit of preventing overturning.
- the freezing room is a lower compartment having a freezing temperature zone having a large temperature difference from the outside air temperature.
- the upper and lower heat-insulating compartments are provided with heat-insulating doors, respectively.
- the refrigerating compartment door at the upper portion as a revolving door, the items stored in the refrigerator move to the outside of the refrigerator. Because there is no change, it is possible to suppress a change in the position of the center of gravity and improve stability against falling.
- the evaporator (not shown) in the present embodiment is arranged on a plane upward and downward on the rear side of the lower storage room, but at the bottom of the freezing room 703 as the lower storage room.
- FIG. 12 is a schematic sectional view of a refrigerator according to Embodiment 8 of the present invention.
- FIG. 13 is a schematic front view of the refrigerator.
- FIG. 14 is a development view of the refrigerator excluding a front door part. Is shown.
- the heat insulating box 801 has a heat insulating wall formed by injecting a foam heat insulating body 804 into a space defined by an inner box 802 and an outer box 803.
- the space formed by the inner box 802 and the outer box 803 before foaming has a heat insulation performance 5 to 20 times that of the foam heat insulator 804 in order to improve energy saving.
- Vacuum insulation 805 is foamed integrally with foam insulation 804.
- the vacuum heat insulating material 805 uses an inorganic material such as glass fiber, for example.
- the density of the foam insulation 804 is 20 to 50 kg / m 3
- that of the vacuum insulation 805 is 200 to 250 kg / m 3 , which can be at least four times or more.
- the heat-insulating box 801 is divided into a plurality of heat-insulating sections, and has a configuration in which the door of the uppermost heat-insulating section is a revolving door type and the door of the lower heat-insulating section is a drawer type.
- Each insulation section is provided with a heat insulation door via a gasket 811. From the top, a refrigerator compartment revolving door 812, a switching room drawer 813, an ice making room drawer 814, a vegetable room drawer 815, and a freezer room drawer 816.
- the heat-insulating box 801 is provided with a recess 817 formed by recessing the rear portion of the top surface, and the refrigerating cycle includes a compressor 818, a condenser (not shown), and a decompressor disposed in the recess 817. It is constructed by connecting the cavities and the evaporator 819 in a ring. The evaporator 819 performs forced convection heat exchange with a cooling fan 820.
- the condenser (not shown) may be forcibly air-cooled by using a fan, may be a natural air-cooled type affixed to the inside of the outer box 803 with good heat conduction, or may be a heat-insulated door between each room.
- a high-pressure pipe may be combined with the partition to prevent drip-proofing.
- the control board 821 for operating the refrigeration cycle is hermetically disposed below the recess 817 with a removable cover.
- the recess 817 is also substantially removably sealed with a cover.
- the height of the heat insulating box 801 is H0 and the height of the refrigerating compartment revolving door 812 is HI, it is desirable that the HI be approximately 1Z2 or more, which is the center of H0. It is set to approximately 1/2, which is equivalent to the center.
- the height of the switching room drawer door 813 and the ice making room drawer door 81 4 further above is H2, the height of the vegetable room drawer door 815 below it is H3, and the lowermost freezer room drawer door is H3. Assuming that the height of 816 is H4, H2 is the smallest compared to H3 and H4, and the relationship of H2 to H3 and H2 to H4 is established.
- the vacuum heat insulating material 805 is attached to both sides, the back and the bottom of the heat insulating box 801 so as to cover the side and the back of the storage room, and is disposed upward with respect to the lower part of each surface.
- the position and size of the vacuum heat insulating material 805 are determined such that the total area of L3 is larger than that of L4.
- a five- or six-panel multi-door refrigerator which is usually easy to use, has a H0 of about 1800 mm and a HI of about 800 mm. It was set to the degree.
- the height HO—HI which is the height from the installation surface of the refrigerator compartment 806 at the lower end, is about 900 mm, and the average woman can use the storage space for the door 812 of the refrigerator compartment 806 and the storage space inside the refrigerator.
- the height can be set so that the food can be stored smoothly without raising the elbow or the like.
- the drawer-type operation can be performed more smoothly, and the storage operation can be performed more smoothly.
- the capacity of the refrigerator compartment 806 increases and the capacity of each drawer decreases as the HI increases.
- the conventional refrigerator having a compressor 818 provided at the lower part of the refrigerator which is generally used in the related art.
- the compressor 818 By disposing the compressor 818 behind the top surface of the refrigerator compartment 806, the internal volume of the refrigerator compartment 806 can be reduced, and the internal volume of the lower drawer section can be increased. HI can be increased while maintaining the same volume balance as a refrigerator.
- a compressor 818 and a condenser (not shown), which are relatively heavy among the components of the refrigerator, and a refrigerant pipe are housed in the recess 817 at the rear of the top surface of the heat insulating box 801. Therefore, the refrigerator has a higher center of gravity and is more likely to fall.
- a refrigerator that is normally supported at four points on the floor by casters 822 or the like has a possibility of falling if the center of gravity is located outside four perpendicular lines extending in the direction of gravity from each supporting point. Therefore, it can be seen that the higher the position of the center of gravity, the lower the inclination of the refrigerator due to the installation inclination or the inclination of the refrigerator due to external force.
- the line 845 indicating the lower end surface of the refrigerating compartment 806 is located above and below the insulating box 801. It can be located almost at the center of the direction. Since the revolving door does not move the contents of the shelf in the warehouse compared to the drawer door, the center of gravity does not need to move relatively much, so it is possible to reduce the movement of the center of gravity of the upper half of the heat insulating box 801. On the other hand, the stability is improved.
- the drawer door has a more complicated structure such as a rail or a rail holding member and a case that require strength to support the storage objects, and the weight is increased.
- this section in the lower half of the heat-insulating box 801, the center of gravity can be lowered and the stability against falling can be improved.
- the heat insulating box 801 can be increased in weight and the center of gravity can be lowered, so that stability can be improved.
- the amount of storage decreases due to an increase in the ineffective portion due to the constituent members. Therefore, if the drawer configuration is divided into three sections in the vertical direction, a balance between the internal volume and stability may be achieved.
- the height H2 of the switching room drawer door 813 and the ice making room drawer door 814 at the top of the drawer is changed to the height H3 of the vegetable room drawer door 815 and the freezing room drawer door 816 located therebelow. Since the height is the smallest compared to the H4, the inner volume and storage capacity can be minimized because they have almost the same depth and width configuration, and the change in the center of gravity is small. In addition, since the internal volume and storage capacity of the lower vegetable compartment 809 and freezer compartment 810 can be made relatively large, when the upper drawer is opened, the stored items can be arranged at a lower position and stable against tipping over. Can be achieved.
- the uppermost drawer is divided into at least two sides, one of which is a switching room 807 and the other is an ice making room 808, the weight and the internal volume of each door can be reduced. It is possible to further reduce the change in the center of gravity due to opening, and to stabilize against falling.
- cooling system components such as an evaporator 819, a cooling fan 820, a flow control valve (not shown), a damper (not shown), and the like are arranged at the rear and rear of the lower heat insulation section provided with a drawer door.
- a relatively heavy component made of a motor or metal material becomes a balancer against the forward movement of the center of gravity due to the drawer opening, and the stability against falling can be improved.
- the line 845 itself is lowered. Because of the movement, the amount of the vacuum insulation material 805 used can be suppressed and the stabilization can be achieved, which is advantageous in terms of cost.
- the freezing compartment 810 and the ice making compartment 807 which are low-temperature compartments that have a large energy-saving effect due to the heat insulation performance, are located below the drawer compartment, the vacuum insulation 805 around the low-temperature compartment is arranged and stable. The improvement of both is achieved.
- the refrigerator of the present invention in addition to ensuring sufficient internal volume and depth of the lowermost storage room, it is possible to increase the installation stability of the refrigerator and improve the fall-prevention property. It can also be applied to large refrigerators for business use and refrigeration equipment such as freezers and showcases.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2004170787 | 2004-06-09 | ||
JP2004-170787 | 2004-06-09 | ||
JP2004363884 | 2004-12-16 | ||
JP2004-363884 | 2004-12-16 |
Publications (1)
Publication Number | Publication Date |
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WO2005121669A1 true WO2005121669A1 (ja) | 2005-12-22 |
Family
ID=35503166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/010395 WO2005121669A1 (ja) | 2004-06-09 | 2005-06-07 | 冷蔵庫 |
Country Status (2)
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TW (1) | TW200602604A (ja) |
WO (1) | WO2005121669A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102331145A (zh) * | 2011-09-07 | 2012-01-25 | 张其明 | 真空保温法在电冰箱中的应用 |
WO2019199247A3 (en) * | 2018-04-14 | 2020-09-03 | Dere Halil Ibrahim | Smart refrigerator with double section |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI636226B (zh) * | 2017-02-13 | 2018-09-21 | 台灣松下電器股份有限公司 | Refrigerator with independent greenhouse |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56161477U (ja) * | 1980-04-30 | 1981-12-01 | ||
JPH07167551A (ja) * | 1993-12-15 | 1995-07-04 | Hitachi Ltd | 断熱箱体 |
JP2003314952A (ja) * | 2003-04-18 | 2003-11-06 | Sanyo Electric Co Ltd | 冷蔵庫 |
-
2005
- 2005-06-07 WO PCT/JP2005/010395 patent/WO2005121669A1/ja active Application Filing
- 2005-06-08 TW TW094118883A patent/TW200602604A/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56161477U (ja) * | 1980-04-30 | 1981-12-01 | ||
JPH07167551A (ja) * | 1993-12-15 | 1995-07-04 | Hitachi Ltd | 断熱箱体 |
JP2003314952A (ja) * | 2003-04-18 | 2003-11-06 | Sanyo Electric Co Ltd | 冷蔵庫 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102331145A (zh) * | 2011-09-07 | 2012-01-25 | 张其明 | 真空保温法在电冰箱中的应用 |
WO2019199247A3 (en) * | 2018-04-14 | 2020-09-03 | Dere Halil Ibrahim | Smart refrigerator with double section |
Also Published As
Publication number | Publication date |
---|---|
TWI335408B (ja) | 2011-01-01 |
TW200602604A (en) | 2006-01-16 |
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