WO2023084784A1 - 冷蔵庫 - Google Patents
冷蔵庫 Download PDFInfo
- Publication number
- WO2023084784A1 WO2023084784A1 PCT/JP2021/041962 JP2021041962W WO2023084784A1 WO 2023084784 A1 WO2023084784 A1 WO 2023084784A1 JP 2021041962 W JP2021041962 W JP 2021041962W WO 2023084784 A1 WO2023084784 A1 WO 2023084784A1
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- WO
- WIPO (PCT)
- Prior art keywords
- heat insulating
- cooler
- compartment
- insulating material
- air passage
- Prior art date
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- 238000003860 storage Methods 0.000 claims abstract description 146
- 239000012774 insulation material Substances 0.000 claims abstract description 37
- 235000013311 vegetables Nutrition 0.000 claims description 272
- 239000011810 insulating material Substances 0.000 claims description 202
- 238000007664 blowing Methods 0.000 claims description 40
- 238000009413 insulation Methods 0.000 claims description 29
- 239000006260 foam Substances 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 19
- 238000007710 freezing Methods 0.000 claims description 8
- 230000008014 freezing Effects 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 34
- 238000010586 diagram Methods 0.000 description 29
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 16
- 239000006261 foam material Substances 0.000 description 14
- 235000013305 food Nutrition 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 7
- 238000009833 condensation Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
-
- 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
Definitions
- the present disclosure relates to refrigerators with vacuum insulation.
- Patent Document 1 discloses a refrigerator provided with a refrigerating compartment, an ice-making compartment, a vegetable compartment, and a freezing compartment in this order from the top. Comparing the number of times the door is opened and closed or the time the door is opened for the vegetable compartment and the freezer compartment, although there are individual differences, the number of times the door is opened and closed is generally greater in the vegetable compartment, and the door is open for a longer time. Therefore, in Patent Document 1, the convenience of the refrigerator is improved by arranging the vegetable compartment above the freezer compartment.
- the ice making compartment and the freezer compartment which are spaces in the negative temperature zone, are provided above and below the vegetable compartment, which is in the positive temperature zone. It is arranged behind the vegetable compartment and cools the space above and below the vegetable compartment to a temperature zone of minus temperature.
- the back wall of the vegetable compartment is provided with vacuum insulation having a higher insulation performance (that is, a smaller heat transfer coefficient) than the foam insulation material. material is provided.
- the refrigerator of Patent Document 1 has a plurality of air passages that communicate between a cooler chamber in which a cooler is arranged and a storage chamber such as a vegetable compartment.
- the back wall of the vegetable compartment is provided with a vacuum heat insulating material except for the left and right ends, and the entire cooler is covered with the vacuum heat insulating material when viewed from the front.
- the refrigerator of Patent Document 1 is provided with a return air passage for cold air that communicates between the vegetable compartment and the cooler chamber, and the cold air warmed in the vegetable compartment returns to the cooler chamber through the return air passage. Cooled again in cooler. Therefore, the outlet of the return air path on the cooler chamber side is arranged so that the cool air returned to the cooler chamber passes through the cooler.
- the entrance of the return air passage is provided beside the vacuum heat insulating material provided so as to cover the entire cooler when viewed from the front. Therefore, in the refrigerator of Patent Document 1, when the outlet of the return air passage is arranged so that cool air passes through the cooler, the return air passage is provided so as to extend laterally from the inlet to the cooler when viewed from the front. Become.
- the portion of the return air passage that overlaps the vacuum insulation material in a front view is arranged behind the vacuum insulation material so as to bypass the vacuum insulation material, and the shape of the return air passage becomes complicated. Therefore, it is necessary to secure a space for providing a return air passage behind the vacuum insulation material on the back wall of the vegetable compartment. Therefore, in the refrigerator of Patent Document 1, if a return air passage is provided so that cold air returned from the vegetable compartment to the cooler compartment passes through the cooler, the thickness of the back wall of the vegetable compartment is increased, and the storage space is reduced. .
- An object of the present disclosure is to solve the above problems, and to provide a refrigerator in which a return air passage for returning cold air to pass through the cooler is provided without reducing the storage space.
- a refrigerator includes an insulating box body having an opening covered with a door on the front surface and having a plurality of storage compartments formed therein, and the inside of the insulating box body includes other adjacent storage compartments.
- a first storage chamber set to a higher temperature than the a first vacuum heat insulating material disposed between the cooler chamber and a return air passage that communicates the first storage chamber and the cooler chamber and through which cold air returning to the cooler chamber flows;
- the first vacuum heat insulating material is arranged so as to overlap a part of the cooler, and the return air passage is formed by the first vacuum heat insulating material provided adjacent to the first vacuum heat insulating material so as not to overlap with the cooler and overlap with the cooler, and the outlet of the cold air in the return air path overlaps with the cooler or the cooling located at the bottom of the vessel.
- the return air passage when the heat insulating box is viewed from the front, the return air passage does not overlap with the first vacuum heat insulating material. A reduction in the storage space of one storage compartment can be avoided. Further, in the refrigerator according to the present disclosure, when the heat insulating box is viewed from the front, the return air passage is provided adjacent to the first vacuum insulation material so as to overlap the cooler, and the cold air outlet in the return air passage is located at a position overlapping with the cooler or at a position below the cooler, so that the return airflow returns cold air to pass through the cooler without extending the return airflow path laterally as in the conventional art. A road can be established. Thus, according to the present disclosure, a return air path for cooling air back through the cooler can be provided without reducing storage space.
- FIG. 1 is an external perspective view showing a refrigerator according to Embodiment 1 of the present disclosure
- FIG. 2 is a schematic front view showing the inside of the refrigerator of FIG. 1
- FIG. 2 is a diagram showing a refrigerant circuit of the refrigerator in FIG. 1
- FIG. 2 is an explanatory view showing a cross section of part of the wall of the heat insulating box of the refrigerator in FIG. 1; It is explanatory drawing which shows the cross section of a part of wall part of a left side part among the heat insulation boxes of the refrigerator of FIG.
- FIG. 6 is an explanatory view showing another example of a cross section of a portion of the wall of the heat insulating box of FIG. 5;
- FIG. 6 is an explanatory view showing another example of a cross section of a portion of the wall of the heat insulating box of FIG. 5;
- FIG. 10 is an explanatory view showing a longitudinal section of another example of the ceiling wall portion in the vegetable compartment of FIG. 9;
- FIG. 10 is an explanatory view showing a longitudinal section of another example of the ceiling wall portion in the vegetable compartment of FIG. 9;
- FIG. 3 is a schematic diagram showing the XX section of the refrigerator in FIG. 2;
- FIG. 3 is a schematic front view showing a lower portion of the refrigerator in FIG. 2;
- FIG. 3 is a schematic diagram showing the AA cross section of the refrigerator in FIG. 2;
- FIG. 17 is a schematic diagram showing a cool air outlet air path to the freezer compartment and a cold air return air path from the freezer compartment in FIG. 16 ;
- FIG. 3 is a schematic diagram showing a BB cross section of the refrigerator in FIG. 2;
- FIG. 19 is a schematic diagram showing a return air path of cold air from the vegetable compartment in FIG.
- FIG. 18 Figure 4 is a schematic front view of the cooler of the refrigerator of Figure 3; Figure 21 is a front perspective view of the cooler of Figure 20; FIG. 3 is a schematic diagram showing a TT cross section of the refrigerator in FIG. 2; FIG. 23 is a schematic diagram showing another example of a return air passage for cold air from the vegetable compartment in the refrigerator of FIG. 22; FIG. 3 is a schematic front view showing another example of the refrigerator in FIG. 2; 25 is a schematic front view of the refrigerator of FIG. 24; FIG. FIG. 2 is a schematic diagram showing a vacuum heat insulating material inside a wall portion that constitutes the vegetable compartment of the refrigerator in FIG. 1 ; FIG.
- FIG. 27 is a schematic view showing from the rear side the vacuum heat insulating material in the wall constituting the vegetable compartment of the refrigerator of FIG. 26; 16 is a partial schematic diagram of the vegetable compartment of the refrigerator of FIG. 15.
- FIG. It is a front schematic diagram of a refrigerator according to Embodiment 2 of the present disclosure.
- FIG. 30 is a schematic diagram showing a CC cross section of the refrigerator in FIG. 29;
- FIG. 1 is an external perspective view showing a refrigerator 1 according to Embodiment 1 of the present disclosure.
- FIG. 2 is a schematic front view showing the interior of the refrigerator 1 of FIG.
- FIG. 3 is an explanatory diagram showing a longitudinal cross section of the refrigerator 1 in FIG. 1 in the front-rear direction.
- 4 is a diagram showing a refrigerant circuit of the refrigerator in FIG. 1.
- FIG. A schematic configuration of the refrigerator 1 will be described with reference to FIGS. 1 to 4.
- the refrigerator 1 has an insulating box 19, and as shown in FIG. 2, the insulating box 19 is provided with a plurality of storage compartments.
- the heat insulation box 19 has a vertically long rectangular parallelepiped shape.
- a refrigerator compartment 2 inside the heat insulating box 19, a refrigerator compartment 2, an ice making compartment 3, a temperature switching compartment 4, a freezer compartment 6, and a vegetable compartment 5 are formed inside the heat insulating box 19, .
- the refrigerator compartment 2, the ice making compartment 3, the temperature switching compartment 4, the vegetable compartment 5, and the freezer compartment 6 are arranged in this order.
- the ice making chamber 3 and the temperature switching chamber 4 are provided adjacent to each other in the horizontal direction, with the temperature switching chamber 4 arranged on the left side and the ice making chamber 3 arranged on the right side of the temperature switching chamber 4 .
- a partition is provided inside the heat insulating box 19 to separate the storage chambers.
- the number of storage compartments of refrigerator 1, the types of storage compartments, that is, the set temperatures, and the arrangement of storage compartments are not limited to those described above.
- the refrigerator 1 may have a chilled compartment (a storage compartment whose set temperature is, for example, 0 to 3°).
- the temperature switchable chamber 4 may be arranged on the right side, and the ice making chamber 3 may be arranged on the left side of the temperature switchable chamber 4 .
- the heat insulating box 19 has a top surface portion 19a, a bottom surface portion 19b, a right side portion 19c, a left side portion 19d and a back portion 19f (see FIG. 3), and the front surface of the heat insulating box 19 is open. are doing.
- the refrigerator 1 has doors 2a, 3a, 4a, 5a and 6a for opening and closing storage compartments.
- the top surface portion 19a of the heat insulation box 19 constitutes the ceiling wall portion of the refrigerating compartment 2 arranged at the top
- the bottom surface portion 19b of the heat insulation box 19 is the bottom. constitutes the bottom wall portion of the freezer compartment 6 arranged in the .
- the left side wall portion 19d of the heat insulating box body 19 constitutes the left side wall portions of the refrigerator compartment 2, the temperature switching compartment 4, the vegetable compartment 5, and the freezer compartment 6.
- a right side wall portion 19 c of 19 constitutes right side wall portions of the refrigerator compartment 2 , the ice making compartment 3 , the vegetable compartment 5 and the freezer compartment 6 .
- the refrigerator 1 includes coolers 14 that cool a plurality of storage compartments.
- refrigerator 1 has refrigerant circuit 7 including cooler 14 .
- the refrigerant circuit 7 includes a compressor 8 that compresses the refrigerant, an air-cooled condenser 9 that exchanges heat between the surrounding air and the refrigerant, and a condenser provided in the wall of the heat insulating box 19.
- a device 10, a condensation prevention pipe 11, a dryer 12 for removing moisture and foreign matter from the refrigerant, a decompression device 13 for decompressing the refrigerant, and a cooler 14 are connected by piping.
- the dew condensation prevention pipe 11 is stretched around each storage compartment on the front surface of the refrigerator 1 .
- the configuration of the refrigerant circuit 7 is not limited to the configuration described above.
- an air passage through which cold air passes is provided inside the heat insulating box 19 .
- the refrigerator 1 is provided with an air blower 15 that is arranged above the cooler in the air passage and that circulates cold air inside the refrigerator 1 .
- the refrigerator 1 includes air volume adjusting devices 18a, 18b and 18c for adjusting the volume of cold air supplied to each storage compartment.
- the air passage branches into a plurality of blowing air passages above the cooler 14, and the cold air that is cooled by the cooler 14 and discharged from the blower 15 flows into each of the branched air passages.
- a blowout air passage 27 communicating with the refrigerating chamber 2 is provided in a foam heat insulating material installed on the back side of the refrigerating chamber 2 , and part of the cold air from the cooler 14 passes through the refrigerating chamber 2 through the blowing air passage 27 .
- An air volume adjustment device 18 a for adjusting the volume of cold air supplied to the refrigerator compartment 2 is arranged in the blowing air passage 27 .
- Electric parts constituting each of the air volume adjusting devices 18a, 18b and 18c are housed in the rear wall portion of the storage compartment above the vegetable compartment 5. As shown in FIG. By configuring in this way, there is no need to provide an extra space behind the vegetable compartment 5, and the vegetable compartment 5 can have a large capacity.
- a machine room 51 is formed in the lower part of the back side of the refrigerator 1 by recessing the lower part of the back part 19f of the heat insulating box 19 forward.
- the heat insulating box 19 has a vegetable compartment back wall portion 31 provided between the cooler 14 and the vegetable compartment 5, and the cooler 14 is arranged on the back side of the vegetable compartment back wall portion 31.
- a cooler chamber 52 is formed as a space for cooling. The cooler chamber 52 communicates with the air passage. Further, below the cooler 14 in the cooler chamber 52, an anti-frost heater 47 (see FIG. 16 described later) and a drip tray 66 for receiving melted water from the cooler 14 are provided.
- the refrigerant discharged from the compressor 8 is supplied to the air-cooled condenser 9 installed in the machine room 51, as indicated by the solid line arrows in FIG. Then, the refrigerant that has flowed through the air-cooled condenser 9 flows through the condenser 10 installed inside the urethane of the heat insulating box 19 (see FIG. 3).
- the refrigerant that has flowed through the condenser 10 is condensed by the condensation process while flowing through the condensation prevention pipes 11 that are stretched around the storage compartments on the front surface of the refrigerator 1 . After passing through the dew condensation prevention pipe 11, the refrigerant is supplied to the decompression device 13 after passing through the dryer 12 and is decompressed.
- the refrigerant decompressed by the decompression device 13 is supplied to the cooler 14 .
- the refrigerant supplied to the cooler 14 evaporates in the cooler 14 and exchanges heat with cold air forced to internally circulate by the blower 15 .
- Cold air generated by heat exchange in the cooler 14 cools each storage compartment in the refrigerator 1 .
- the refrigerant absorbs heat, gasifies, and returns to the compressor 8 .
- the cold air generated by the cooler 14 is supplied to each storage compartment through air passages by the blower 15 to cool the inside of each storage compartment and stored items such as food. After that, it returns to the cooler chamber 52 (see FIG. 3) and is cooled by the cooler 14 .
- Each of the air volume adjusting devices 18a, 18b and 18c shown in FIG. 3 is composed of an electric part, such as a damper, that adjusts the opening and closing of the air passage.
- three air volume adjusting devices 18a, 18b, 18c are provided above the cooler 14 and downstream of the blower 15 in the air passage.
- the volume of air supplied to the refrigerating compartment 2 is adjusted by the volume adjustment device 18a
- the volume of air supplied to the temperature switching chamber 4 is adjusted by the volume adjustment device 18b
- the volume of air supplied to the vegetable compartment 5 is adjusted by the volume adjustment device 18c.
- a detailed configuration of the air passage will be described later.
- the refrigerator 1 comprises a plurality of temperature sensors 16a, 16b, 16c and 16d installed in the storage compartments, each temperature sensor measuring the temperature of the air or the temperature of the stored material in the installed storage compartments. to detect.
- a temperature sensor 16a is installed in the refrigerator compartment 2
- a temperature sensor 16b is installed in the temperature switching compartment 4
- a temperature sensor 16c is installed in the vegetable compartment 5
- a temperature sensor 16d is installed in the freezer compartment 6. is set up.
- the ice making chamber 3 is also provided with a temperature sensor.
- the refrigerator 1 also includes a control unit 17 that performs various controls of the refrigerator 1 .
- the control unit 17 is provided, for example, on the upper part of the rear surface of the heat insulating box 19 .
- the control unit 17 includes a control board, and a microcomputer, electronic components, and the like arranged on the control board. Temperature information detected by each of the plurality of temperature sensors is input to the control section 17 .
- the controller 17 operates the air volume adjusting devices 18a, 18b, and 18c according to the input temperature information.
- the control unit 17 also controls the frequency of the compressor 8 and the opening degree of the decompression device 13 shown in FIG.
- the refrigerator 1 includes storage compartments (for example, the freezer compartment 6 and the ice making compartment 3) set in the freezing temperature zone, which is a minus temperature zone, and a refrigerating compartment, which is in the plus temperature zone. and storage compartments (for example, the refrigerator compartment 2 and the vegetable compartment 5) that are set to the temperature range.
- the freezer compartment 6 is arranged at the bottom of the refrigerator 1, and the vegetable compartment 5, which is accessed more frequently than the freezer compartment 6, is arranged above the freezer compartment 6. , to improve convenience.
- the vegetable compartment 5 in the refrigerating temperature range is arranged adjacent to the freezer compartment 6 in the freezing temperature range and the ice making compartment 3. .
- a vacuum heat insulating material (not shown) is provided on the partition between the storage compartments in order to ensure heat insulation between the storage compartments.
- the vegetable compartment 5 disposed between the freezer compartment 6 and the ice making compartment 3 is cooled in order to cool both the freezer compartment 6 and the ice making compartment 3 in the freezing temperature range.
- a cooler chamber 52 is provided at the rear. Therefore, a vacuum insulation material 39 (described later) is also applied to the vegetable compartment rear wall portion 31 disposed between the cooler compartment 52 and the vegetable compartment 5 in the refrigerating temperature zone so as to insulate the cooler 14 and the vegetable compartment 5 from each other. (see FIG. 9) is provided.
- the vacuum heat insulating material 39 arranged between the cooler 14 and the vegetable compartment 5 may be referred to as a first vacuum heat insulating material. A more detailed arrangement of the first vacuum heat insulating material will be described later.
- the floor of the refrigerating compartment 2 which is the uppermost storage compartment, from the floor surface of the room It is preferable that the distance L to the surface 2b is set between 954 mm and 994 mm.
- the cooler chamber 52 in which the cooler 14 is arranged is mainly provided behind the vegetable compartment 5, and is provided behind the lower parts of the ice making compartment 3 and the temperature switching compartment 4, and the freezer compartment. It extends to the rear of the upper part of 6 and also.
- the lower end 14b of the cooler 14 is located below the height F of the floor of the vegetable compartment 5 in the cooler compartment 52 in the vertical direction.
- the degree of freedom in selecting the size of the blower 15 to be used is increased.
- FIG. 5 is an explanatory diagram showing a partial cross section of the wall portion 20 of the heat insulating box body 19 of the refrigerator 1 of FIG.
- the walls 20 of the heat-insulating box 19 are composed of a metal plate 21 forming an outer shell, an inner box 22 forming an inner wall of each storage chamber, and a heat insulating material between the metal plate 21 and the inner box 22. 23, and suppresses the amount of heat entering from the outside.
- the heat insulating material 23 includes a vacuum heat insulating material 24, and the vacuum heat insulating material 24 is attached to the sheet metal 21 of the outer shell, so that the amount of heat invasion can be greatly reduced.
- the vacuum heat insulating material 24 arranged in the wall portion 20 can be configured by, for example, one rectangular plate-shaped vacuum heat insulating material.
- the heat insulating material 23 is mainly composed of urethane foam material.
- the heat insulating material 23 includes various internal members arranged in a space enclosing the urethane foam, and is configured to fix the internal members by the urethane foam.
- the internal member includes, for example, a reinforcing member for correcting distortion of the refrigerator 1, the components of the refrigerant circuit 7, the components of the electric wiring, and the like.
- FIG. 6 is an explanatory view showing a partial cross section of the wall portion 20 of the left side portion 19d of the heat insulating box body 19 of the refrigerator 1 of FIG.
- the heat insulating material 23 of the wall portion 20 of the left side portion 19d of the heat insulating box body 19 of the refrigerator 1 includes various inscribed members arranged in the space enclosing the urethane foam material. It is configured to be fixed by a material.
- the wall portion 20 of the left side portion 19d of the heat insulating box 19 includes the reinforcing member, the parts of the refrigerant circuit 7, the parts of the electrical wiring, and the like, as well as the door of the drawer-type storage compartment (for example, FIG. 1).
- a support 25 for supporting the door 5a) shown in 1 is also arranged as an inscribed member.
- the support 25 has a rail structure that receives the frame structure that constitutes the door of the drawer-type storage room, and the insulation 23 that secures the support 25 has a rail structure so as to secure the rail structure of the support 25. is formed in a shape corresponding to the shape of
- FIG. 7 is an explanatory diagram showing another example of a partial cross section of the wall portion 20 of the heat insulating box body 19 of FIG.
- FIG. 8 is an explanatory diagram showing another example of a partial cross section of the wall portion 20 of the heat insulating box body 19 of FIG.
- the vacuum heat insulating material 24 of the heat insulating material 23 may be arranged using a spacer 26 at an intermediate position between the outer sheet metal 21 and the wall surface of the inner box 22 depending on the installation location.
- the vacuum heat insulating material 24 of the heat insulating material 23 may be attached to the wall surface of the inner box 22 depending on the installation location.
- the vacuum insulation 24 of insulation 23 may be installed within wall 20 in any of the ways shown in FIGS.
- the vacuum heat insulating material 24 is installed so as not to interfere with the internal members described above in order to avoid damage.
- the vacuum insulation placed on these walls 20 for the entire outer surface area including the insulating box 19 of the refrigerator 1 and the doors 2a, 3a, 4a, 5a and 6a (see FIG. 1) of each storage compartment. 24 is preferably 40% or more. Further, it is preferable that the foaming density of the urethane foam material enclosed around the vacuum heat insulating material 24 is 60 kg/cm 3 or more. Moreover, the flexural modulus of the urethane foam material is preferably 15.0 MPa or more. By configuring the urethane foam material in this way, the strength of the heat insulating box body 19 of the refrigerator 1 is ensured.
- the vacuum heat insulating material 24 having a higher heat insulating performance than the foam heat insulating material is included in the heat insulating material 23 of the heat insulating box body 19, thereby narrowing the distance between the outer shell of the refrigerator 1 and the inner wall of the inner box 22. Even if the heat insulation thickness is reduced, the same heat insulation performance can be ensured. Therefore, when the vacuum heat insulating material 24 is provided on the wall portion 20 of the heat insulating box 19, the thickness of the wall portion 20 is reduced to increase the internal volume of the refrigerator 1 compared to the case where the vacuum heat insulating material 24 is not provided. can be done.
- FIG. 9 is a view showing a longitudinal cross section around the vegetable compartment 5 of the refrigerator 1 of FIG. 1 in the front-rear direction.
- FIG. 10 is an explanatory view showing a longitudinal section of another example of the ceiling wall portion 32 in the vegetable compartment 5 of FIG.
- FIG. 11 is an explanatory view showing a longitudinal section of another example of the ceiling wall portion 32 in the vegetable compartment 5 of FIG.
- FIG. 12 is a diagram showing another example of the vegetable compartment rear wall portion 31 of FIG.
- FIG. 13 is a diagram showing another example of the vegetable compartment rear wall portion 31 of FIG. A plurality of walls constituting the vegetable compartment 5 will be described with reference to FIGS. 9 to 13.
- FIG. 10 is an explanatory view showing a longitudinal section of another example of the ceiling wall portion 32 in the vegetable compartment 5 of FIG.
- FIG. 11 is an explanatory view showing a longitudinal section of another example of the ceiling wall portion 32 in the vegetable compartment 5 of FIG.
- FIG. 12 is a diagram showing another example of the vegetable compartment rear wall portion
- the ceiling wall 32 of the vegetable compartment 5 serves as a partition between the vegetable compartment 5 and the ice making compartment 3 and temperature switching compartment 4 shown in FIG.
- the ceiling wall portion 32 is a heat insulating wall, and suppresses heat transfer between the vegetable compartment 5 and the upper storage compartment set to a lower temperature than the vegetable compartment 5 .
- the ceiling wall portion 32 has an outer shell made of an injection-molded material, and an inside made of a vacuum heat insulating material 33 and a urethane foam material 34 .
- the vacuum heat insulating material 33 is installed on the storage compartment side, that is, on the upper side, where the temperature is lower than that of the vegetable compartment 5 .
- the bottom wall portion 35 of the vegetable compartment 5 serves as a partition between the vegetable compartment 5 and the freezer compartment 6 shown in FIG.
- the bottom wall portion 35 is a heat-insulating wall and suppresses heat transfer between the vegetable compartment 5 and the storage compartment below which is set to a lower temperature than the vegetable compartment 5 .
- the bottom wall portion 35 has an outer shell made of an injection-molded material, and an inside made of a vacuum heat insulating material 36 and a urethane foam material 37 .
- the vacuum heat insulating material 36 is installed on the side of the storage compartment where the temperature is lower than that of the vegetable compartment 5 , that is, on the lower side.
- the thickness of the urethane foam material 37 in each of the ceiling wall portion 32 of the vegetable compartment 5 and the bottom wall portion 35 of the vegetable compartment 5 is preferably 7 mm or more in consideration of fluidity during manufacturing and manufacturing variations.
- Each of the vacuum heat insulating material 33 of the ceiling wall portion 32 of the vegetable compartment 5 and the vacuum heat insulating material 36 of the bottom wall portion 35 of the vegetable compartment 5 is composed of a single rectangular plate-like vacuum heat insulating material.
- the arrangement of the vacuum heat insulating material 33 on the ceiling wall portion 32 of the vegetable compartment 5 is not limited to the above case.
- the vacuum heat insulating materials 33 and 36 arranged respectively on the ceiling wall portion 32 and the bottom wall portion 35 of the vegetable compartment 5 may be wrapped with the urethane foam materials 34 and 37. good.
- the vacuum heat insulating material 33 is arranged between the upper and lower outer wall surfaces in the ceiling wall portion 32 by securing the viscosity or the flow path width of the urethane foam material 34. good too. In this case, since the vacuum heat insulating material 33 is entirely wrapped in the urethane foam material 34, deterioration of the vacuum heat insulating material 33 can be further suppressed.
- a vacuum heat insulating material 33 may be installed in the ceiling wall portion 32 on the vegetable compartment 5 side, that is, on the lower side of the upper and lower outer wall surfaces. In this case, the vacuum heat insulating material 33 can increase the coverage of the inner wall surface of the vegetable compartment 5, thereby suppressing the amount of heat penetration.
- the ceiling wall portion 32 and the The bottom wall portion 35 has vacuum heat insulating materials 33 and 36 .
- the area of the vegetable compartment 5 covered by the vacuum insulation materials 33 and 36 is increased as much as possible. overcooling can be avoided.
- the vegetable compartment rear wall part 31 is a heat insulating wall that separates the vegetable compartment 5 from the cooler compartment 52 behind it.
- the vegetable compartment rear wall portion 31 has heat insulating wall shells 38 and 42 , a vacuum heat insulating material 39 , and a foam heat insulating material 40 provided so as to wrap the vacuum heat insulating material 39 . That is, the vegetable compartment rear wall portion 31 is configured to include a vacuum heat insulating material 39 between the inner wall of the vegetable compartment 5 and the cooler 14 .
- the vacuum heat insulating material 39 can be composed of, for example, one rectangular plate-shaped vacuum heat insulating material.
- the thickness of the foamed heat insulating material 40 of the back wall portion 31 of the vegetable compartment is based on the maximum thickness that can be molded, and if there are additional functions, the necessary heat insulating thickness is provided.
- PS-FO is used as the material of the foamed heat insulating material 40, for example, when the foaming ratio is 40 times, the thickness is preferably at least 5 mm.
- the foam insulation material 40 of the back wall portion 31 of the vegetable compartment is provided with an air passage 41 for blowing cool air to the freezer compartment 6, which communicates between the cooler compartment 52 and the freezer compartment 6 (see FIG. 3).
- the front and rear arrangement of this blowout air passage 41 is as follows: cooler 14, heat insulation wall shell 42, foam heat insulating material 40, vacuum heat insulating material 39, and vegetable compartment 5, which form the blowout air passage 41, from the rear.
- the outer shell 38 of the heat insulating wall constitutes the inner wall of the .
- the configuration of the vegetable compartment rear wall portion 31 is not limited to the configuration described above.
- the vacuum heat insulating material 39 of the back wall portion 31 of the vegetable compartment is attached to the inner wall of the outer heat insulating wall 42 on the side of the cooler 14 in order to make the heat insulating effect more effective.
- the vacuum heat insulating material 39 is arranged on the side of the cooler 14 in the back wall portion 31 of the vegetable compartment.
- the size of the vacuum heat insulating material 39 in the height direction is slightly reduced due to regulation by the position or size of the outlet of the cool air discharged from the blower 15 (see FIG. 2).
- the back surface of the vacuum heat insulating material 39 is not covered with the foam heat insulating material 40, there is concern that the vacuum heat insulating material 39 will deteriorate.
- FIG. 13 by providing a foam heat insulating material 40 between the vacuum heat insulating material 39 and the inner wall of the heat insulating wall outer shell 42 on the cooler 14 side, the back surface of the vacuum heat insulating material 39 is covered with the foam heat insulating material 40. 13, deterioration of the vacuum heat insulating material 39 can be suppressed.
- FIG. 9 illustrates the case where the ceiling wall portion 32, the bottom wall portion 35, and the back wall portion 31 of the vegetable compartment 5 among the plurality of walls constituting the vegetable compartment 5 include the vacuum heat insulating materials 33, 36, and 39.
- the left and right side walls of the vegetable compartment 5 and the door 5a of the vegetable compartment 5 may also be configured to have a vacuum heat insulating material.
- each vacuum heat insulating material may be composed of one plate-like rectangular vacuum heat insulating material.
- each of the plurality of walls constituting the vegetable compartment 5 as described above to have one rectangular vacuum insulation material 24 , 33 , 36 , 39 , the surroundings of the vegetable compartment 5 can be Cold heat can be prevented from flowing into the interior of the vegetable compartment 5, and excessive cooling of the interior of the vegetable compartment 5 can be avoided.
- heat radiation from the inside of the vegetable compartment 5 to the surroundings of the refrigerator 1 outside the vegetable compartment 5 can also be prevented, and the inside of the vegetable compartment 5 can be maintained at the set temperature with good thermal efficiency.
- FIG. 14 is a schematic diagram showing the XX section of the refrigerator 1 in FIG. 15 is a schematic front view showing the lower portion of the refrigerator in FIG. 2.
- FIG. 16 is a schematic diagram showing the AA section of the refrigerator 1 of FIG.
- FIG. 17 is a schematic diagram showing a cool air blowing air path 41 to the freezer compartment 6 and a cold air return air path 70 from the freezer compartment 6 in FIG.
- FIG. 18 is a schematic diagram showing a BB section of the refrigerator 1 of FIG.
- FIG. 19 is a schematic diagram showing a return air passage 80 for cold air from the vegetable compartment 5 in FIG.
- the white arrows in the figure represent the directions in which cool air flows.
- the structure of the air passage and the positional relationship between the air passage and the vacuum heat insulating material 39 will be described with reference to FIGS. 14 to 19.
- a cold air blowing air passage 30 to the vegetable compartment 5 a cold air blowing air passage (not shown) to the temperature switching chamber 4 and the ice making chamber 3, and a cold air blowing air passage 41 to the freezer compartment 6 are provided. It is Inside the heat insulating box 19, there are a return air passage 29a for cold air from the temperature switching chamber 4, a return air passage 28 for cool air from the ice making chamber 3, and a return air passage 29b for cold air from the refrigerator chamber 2. , and a return air passage 80 for cold air from the vegetable compartment 5 are provided. Further, as shown in FIG. 16 , a return air passage 70 for cold air from the freezer compartment 6 is provided inside the heat insulating box 19 .
- the air passage 30 for blowing cool air to the vegetable compartment 5 is provided on the upper rear side of the vegetable compartment 5 from the downstream branch point of the blower 15 .
- a blowout port 44 which is an outlet for cold air in the blowout air passage 30 , is provided on the inner wall of the vegetable compartment 5 .
- the outlet 44 is provided on the inner wall of the vegetable compartment rear wall portion 31 .
- An air volume adjusting device 18c is arranged in the blowing air passage 30, and a part of the cool air cooled by the cooler 14 is blown into the vegetable compartment 5 from the blowing port 44 via the air volume adjusting device 18c by the blower 15. blown out.
- the outlet 44 may be formed in an inner wall of a wall portion of the vegetable compartment 5 other than the vegetable compartment rear wall portion 31 .
- the blow-out air passage 30 is configured to allow direct communication between the cooler 14 and the vegetable compartment, and the blow-out port 44 directs cold air cooled by the cooler 14 to the vegetable compartment 5 .
- the blowing air passage 30 may be configured to communicate with the vegetable compartment 5 from the cooler 14 via another storage compartment (for example, the refrigerator compartment 2).
- the outlet 44 supplies the vegetable compartment 5 with cold air that has been cooled by the cooler 14 and warmed by cooling the stored items in the other storage compartment (refrigerating compartment 2 ).
- the air passage 41 for blowing cool air to the freezer compartment 6 extends behind the vegetable compartment 5 from a branch point downstream of the blower 15 and separates the freezer compartment 6 from the vegetable compartment 5 . It is provided behind the bottom wall portion 35 of the vegetable compartment. As shown in FIGS. 16 and 17, behind the lower part of the air passage 41 for blowing cool air to the freezer compartment 6, there is a cold air outlet from the freezer compartment 6 that communicates between the freezer compartment 6 and the cooler compartment 52. A return air passage 70 is provided.
- return air passages 29a for cool air from the temperature switchable chamber 4 are provided behind the temperature switchable chamber 4 and behind the vegetable compartment 5, and are connected to the temperature switchable chamber 4 and the cooler chamber 52 ( (see FIG. 14).
- a return air passage 28 for cool air from the ice making chamber 3 is provided behind the ice making chamber 3 and behind the vegetable chamber 5 in the vertical direction, and communicates the ice making chamber 3 with the cooler chamber 52 (see FIG. 14).
- a return air passage 80 for cold air from the vegetable compartment 5 is provided behind the vegetable compartment 5, connecting the vegetable compartment 5 and the cooler compartment 52 (see FIG. 14). communicate.
- the return air passage 80 has a vertically long shape extending vertically when viewed from the front.
- a return port 45 which is an inlet for cold air, is provided on the front side of the upper end of the return air passage 80, and an outlet 81 for cold air is provided on the rear side of the lower end of the return air passage 80. is provided.
- the return air passage 80 is provided on the back wall portion 31 of the vegetable compartment, and the return port 45 is provided on the inner wall of the back wall portion 31 of the vegetable compartment.
- a cool air blowing air passage 30 to the vegetable compartment 5 On the left side of the cold air blowing air passage 41 to the freezer compartment 6, a cool air blowing air passage 30 to the vegetable compartment 5, a cool air return air passage 29a from the temperature switching chamber 4, and a cold air blowing air passage 29a from the refrigerator compartment 2 are provided.
- a return air path 29b is arranged.
- the cold air return passage 29b from the refrigerator compartment 2 is arranged on the leftmost side.
- a cold air return air passage 28 from the ice making chamber 3 and a cold air return air passage 80 from the vegetable compartment 5 are arranged on the right side of the cold air blowout air passage 41 to the freezer compartment 6. It is A return air passage 80 for cold air from the vegetable compartment 5 is arranged on the rightmost side.
- a return air passage 29b for cool air from the refrigerator compartment 2 is connected to the drip tray 66 from the lower left side of the cooler 14 in the cooler compartment 52 (see FIG. 16).
- the vegetable compartment rear wall portion 31 provided between the vegetable compartment 5 and the cooler compartment 52 has the above-described air passages, that is, the outlet air passages 30 and 41 and the return air passage 29a, 28, 80 are formed.
- the space formed between the blow-out air passage 41 and the return air passage 28 is a recessed portion provided for stabilizing the shape of the vegetable chamber rear wall portion 31. is.
- the vacuum heat insulating material 39 of the vegetable compartment rear wall portion 31 is arranged so as to partially overlap the cooler 14 in a front view. Moreover, the return air passage 80 of the cold air from the vegetable compartment 5 does not overlap the vacuum insulation material 39 and overlaps with the part of the cooler 14 that does not overlap with the vacuum insulation material 39. 39 are provided adjacent to each other. In the example shown in FIG. 15, most of the left side of the front surface of the cooler 14 is covered from top to bottom with a rectangular vacuum heat insulating material 39, and the right side of the front surface of the cooler 14 extends vertically. In addition, it is configured to be covered with a return air passage 80 for cool air from the vegetable compartment 5 .
- the width of the vacuum heat insulating material 39 can be made smaller than the conventional one, thereby reducing the cost.
- the temperature rise of the cooler 14 can be prevented, and the temperature drop of the vegetable compartment rear wall portion 31 can be prevented. As a result, condensation and frosting in the vegetable compartment 5 can be prevented.
- the entire front surface of the cooler 14 may not be completely covered with the vacuum heat insulating material 39 and the return air passage 80 .
- a wall portion forming the return air passage 80 is arranged between the vacuum heat insulating material 39 and the return air passage 80 . Therefore, in consideration of the strength required for the return air passage 80, a wall portion having a certain thickness or less may be interposed between the return air passage 80 and the vacuum heat insulating material 39.
- the wall portion forming the return air passage 80 may include a heat insulating material.
- a return air passage 80 for cold air from the vegetable compartment 5 is arranged in the side wall part vacated by reducing the width of the vacuum heat insulating material 39 in the vegetable compartment rear wall part 31 .
- the return air passage 80 is arranged so as to overlap a portion of the cooler 14 that does not overlap with the vacuum insulation material 39. Therefore, as shown in FIG. It is only necessary to extend rearward by the thickness of the wall portion of the chamber rear wall portion 31 on the cooler chamber 52 side. Therefore, compared to the conventional configuration in which the entire front surface of the cooler 14 is covered only by the vacuum heat insulating material 39, the return air passage 80 is provided so as to bypass the vacuum heat insulating material 39, or not only in the rear but also in the lateral direction. It is possible to avoid a complicated configuration such as extending to
- the vacuum heat insulating material 39 has a width Wv smaller than the width Wc of the cooler 14, and the left end of the vacuum heat insulating material 39 covers the left end of the cooler 14 when viewed from the front. is provided. As viewed from the front, the right side portion of the cooler 14 is not covered with the vacuum heat insulating material 39 but is covered with the return air passage 80 .
- the arrangement of the vacuum heat insulating material 39 with respect to the cooler 14 is not limited to the above case.
- the vacuum heat insulating material 39 may be arranged so that the right end of the vacuum heat insulating material 39 covers the right end of the cooler 14 when viewed from the front.
- one side of the vacuum heat insulating material 39 is arranged so that the right end of the vacuum heat insulating material 39 matches the right end of the cooler 14 or the left end of the vacuum heat insulating material 39 matches the left end of the cooler 14 when viewed from the front.
- the ends may be aligned with the ends of cooler 14 .
- the blow-out air passage 30 having the blow-out port 44 on the inner wall of the vegetable compartment rear wall portion 31 is also similar to the return air passage 80 described above, and the vacuum heat insulating material 39 is seen from the front. It is configured so that it does not overlap. However, unlike the case of the return air path 80, the cold air blowing air path 30 to the vegetable compartment 5 does not have to overlap the cooler 14 in a front view.
- both the cold air outlet 44 to the vegetable compartment 5 and the cold air return 45 from the vegetable compartment 5 are formed by the vacuum insulation material 39 on the inner wall of the back wall 31 of the vegetable compartment when viewed from the front. It is provided at a position that does not overlap with the According to such a configuration, when forming the outlet port 44 and the return port 45, special processing such as providing a hole or notch in the vacuum heat insulating material 39, or using a plurality of vacuum heat insulating materials is possible. will be unnecessary.
- the blow-out air passage 30 and the return air passage 80 connected to the vegetable compartment 5 do not have to have a complicated shape that bypasses the vacuum heat insulating material 39 .
- the cold air outlet to the vegetable compartment and the cool air return opening from the vegetable compartment are located at diagonal corners outside the vacuum insulation material on the back wall of the vegetable compartment when viewed from the front.
- the vacuum insulation is extensively provided to cover the entire front face of the cooler, so the options for locating the cold air return from the vegetable compartment are more limited than in the case of the present disclosure. be.
- the outlet is provided at the upper corner of the back wall of the vegetable compartment, and the return port is provided at the lower corner diagonally opposite to the cold air outlet.
- the cold air that is blown out from the blowing port into the vegetable compartment and descends while spreading is less likely to enter the return air path from the return port. This is because the cold air, which is lower than the temperature inside the vegetable compartment and is blown out from the outlet, flows downward immediately after being blown out, but gradually warms and rises as the case and food in the vegetable compartment are cooled.
- the outlet 44 and the return port 45 are provided at the same height on the inner wall of the back wall portion 31 of the vegetable compartment. More specifically, when viewed from the front, the blowout port 44 is provided on the upper left side of the vacuum heat insulating material 39 , and the return port 45 is provided on the upper right side of the vacuum insulating material 39 and overlaps the cooler 14 . It is set in a position where
- the vacuum insulation material 39 can separate the discharge port 44 and the return port 45 so that the distance between the discharge port 44 and the return port 45 is more than a certain value in the horizontal direction, and the return port 45 is positioned higher than in the conventional art. It can be provided in the middle or upper stage. Therefore, cold air circulates throughout the interior of the vegetable compartment 5, and thermal efficiency can be improved. Further, according to the above configuration, the blow-out air passage 30 and the return air passage 80 can be provided without being blocked by the vacuum heat insulating material 39 in the front-rear direction. Since they can be provided at overlapping positions, cool air can be returned to the cooler 14 while the shapes of the blow-out air passage 30 and the return air passage 80 are made simple.
- the positions at which the blowout port 44 and the return port 45 are provided are not limited to the above case.
- the cold air outlet 44 to the vegetable compartment 5 is provided in a wall part other than the vegetable compartment rear wall part 31, such as the ceiling wall part 32 of the vegetable compartment 5, among the walls constituting the vegetable compartment 5. Also good. Further, for example, the cold air return port 45 from the vegetable compartment 5 may be provided above the blowout port 44 .
- the return port 45 is provided at the height of the middle or upper stage of the cooler 14 in front view, the cold air from the vegetable compartment 5 is passed through the return air passage 80 extending in the vertical direction from the return port 45. Therefore, it can be guided to the bottom stage of the cooler 14 . Cool air in the cooler chamber 52 is moved upward by the blower 15 . Therefore, heat exchange between the cool air returned from the vegetable compartment 5 and the cooler 14 can be efficiently performed.
- the cold air blown out from the blowout port 44 to the vegetable compartment 5 takes a path such that it reaches the lower part of the vegetable compartment 5 once and then returns toward the upper return port 45 .
- the cool air emitted from the air outlet located in the upper right back of the storage compartment first enters the upper case and then enters the lower case. It follows a circulation path that flows and then flows to the return port at the bottom left of the storage room.
- the cold air flows in this way, there is a risk that the cold air immediately blowing out hits the case and the food, causing the food to freeze or dry.
- the return port 45 is provided above the conventional configuration in the vegetable compartment 5, so that the blown cold air can be directed directly into the case (not shown) provided in the vegetable compartment 5. It can circulate evenly outside the case without induction. As a result, the food can be prevented from freezing, and water vapor in the case is less likely to flow out of the case, thereby improving the moisture retention performance of the food.
- the air passage 41 for blowing cool air to the freezer compartment 6 is provided in the vegetable compartment back wall 31 separating the vegetable compartment 5 and the cooler 14 in the vertical direction. and a portion provided in the bottom wall portion 35 of the vegetable compartment 5 separating the vegetable compartment 5 and the freezer compartment 6. - ⁇ A portion of the air passage 41 for blowing cold air to the freezer compartment 6 provided in the back wall portion 31 of the vegetable compartment, that is, a part located behind the vegetable compartment 5 is arranged so as to overlap the vacuum heat insulating material 39 in a front view.
- the cold air return air passage 29a from the temperature switching chamber 4 and the cold air return air passage 28 from the ice making chamber 3 are also provided in the vegetable compartment rear wall portion 31 so as to overlap the vacuum heat insulating material 39 when viewed from the front. ing.
- a cold air blowing air path 41 to the freezer compartment 6, a cold air returning air path 29a from the temperature switching compartment 4, and a cold air returning from the ice making compartment 3 are arranged in the horizontal direction of the refrigerator 1, a cold air blowing air path 41 to the freezer compartment 6, a cold air returning air path 29a from the temperature switching compartment 4, and a cold air returning from the ice making compartment 3 are arranged.
- An air passage 28 is arranged behind the vacuum heat insulating material 39 .
- a return air passage 29b for cold air from the refrigeration compartment 2 is provided in the heat insulating material arranged behind the vegetable compartment back wall 31 and to the left of the cooler 14.
- the vacuum heat insulating material 39 of the back wall portion 31 of the vegetable compartment is provided in a wider range in the horizontal direction of the refrigerator 1 than the range in which the cooler 14 and the blowing air passage 41 are provided.
- the vacuum heat insulating material 39 of the vegetable compartment rear wall portion 31 is provided in a wider range in the height direction of the refrigerator 1 than the range in which the cooler 14 is provided.
- the vacuum heat insulating material 39 of the vegetable compartment rear wall portion 31 is arranged so as to overlap substantially the entire part provided in the vegetable compartment rear wall portion 31 in the cold air blowing air passage 41 to the freezer compartment 6 when viewed from the front. It is preferable to provide from the upper end to the lower end of the vegetable compartment rear wall portion 31 .
- a return air passage 70 for cool air from the freezer compartment 6 is provided behind the bottom wall portion 35 of the vegetable compartment 5 provided between the vegetable compartment 5 and the freezer compartment 6, as shown in FIG. It is provided so as to overlap with the lower part of the blowing air passage 41 shown.
- the blow-out air passage 41 and the return air passage 70 are arranged within a range in which the cooler 14 is arranged, and are equal to or less than the width Wc of the cooler 14. has a width of
- the outlet of the cold air in the return air passage 70 is the same as the outlet of the return air passage 29b (see FIG. 14) for the cold air from the refrigerating chamber 2. is connected to the drip tray 66 from below.
- the cold air blowing air passage 41 to the freezer compartment 6 branches vertically on the exit side.
- the freezer compartment 6 is provided with a plurality of stages of storage cases 6b on the upper and lower sides.
- a guide portion 6 c for guiding cool air from the upper and lower outlets of the blowing air passage 41 is provided on the back side ceiling of the freezer compartment 6 .
- the guide portion 6c has a first guide portion 6c1 and a second guide portion 6c2 provided behind the first guide portion 6c1.
- the first guide portion 6c1 vertically branches the outlet of the blowout air passage 41, and the second guide portion 6c2 partitions the lower outlet of the blowout air passage 41 and the inlet of the return air passage 70. .
- the guide portion 6c serves both as a guide on the blow-out side into the freezer compartment 6 and as a guide on the return side from the freezer compartment 6.
- the cold air that has been cooled by the cooler 14 and passed through the air passage 41 is blown into the freezer compartment 6 by the blower 15, and is then directed to the freezer compartment 6 by the guide part 6c of the freezer compartment 6. are guided into storage cases 6b, and the stored items in each storage case 6b are cooled.
- the cool air warmed by cooling the stored items in each storage case 6b is guided to the entrance of the return air passage 70 by the guide portion 6c and enters the return air passage 70. - ⁇
- the cool air entering the return air passage 70 returns to below the cooler 14 in the cooler chamber 52 through the return air passage 70 .
- the vacuum heat insulating material 39 of the back wall portion 31 of the vegetable compartment can be provided so as to overlap the front surface of the central portion 14a of the cooler 14 provided with the fins 91 in the front view.
- the return air passage 80 for the cold air from the vegetable compartment 5 is provided so as to overlap with the hairpin portion 95 of the refrigerant pipe 92 in the cooler 14, which does not overlap with the vacuum heat insulating material 39 in front view.
- the range of overlap with the vacuum heat insulating material 39 or the return air passage 80 in front view is not limited to the above case.
- a return air passage 80 may be arranged so as to overlap with the .
- the vacuum heat insulating material 39 may be provided so as to overlap at least the entire front surface of the cooler central portion 14a.
- FIG. 20 is a schematic front view showing the cooler 14 of the refrigerator 1 of FIG. 21 is a front perspective view of the cooler 14 of FIG. 20.
- FIG. FIG. 22 is a schematic diagram showing a TT section of the refrigerator 1 of FIG. The configuration of the cooler 14 will be described in detail with reference to FIGS. 20 to 22.
- FIG. 20 is a schematic front view showing the cooler 14 of the refrigerator 1 of FIG. 21 is a front perspective view of the cooler 14 of FIG. 20.
- FIG. FIG. 22 is a schematic diagram showing a TT section of the refrigerator 1 of FIG. The configuration of the cooler 14 will be described in detail with reference to FIGS. 20 to 22.
- the cooler 14 has a refrigerant pipe 92 through which refrigerant flows and a plurality of fins 91 attached to the refrigerant pipe 92 .
- the cooler 14 uses the plurality of fins 91 to perform heat exchange between air flowing around the fins 91 and the refrigerant.
- Refrigerant pipes 92 are bent to form hairpin portions 95 on the right and left sides of cooler central portion 14a where fins 91 are provided.
- a plurality of hairpin portions 95 are provided on each of the left and right sides of the refrigerant pipe central portion forming the cooler central portion 14a in the refrigerant pipe 92, and the right ends of the two refrigerant pipe central portions provided with the plurality of fins 91 are connected to each other. Or connect the left ends together.
- the central portions of the connected refrigerant pipes are provided horizontally so as to be parallel to each other.
- each partition portion 97 includes a vertically extending plate-like partition plate 97a having a hole in which the refrigerant pipe 92 is arranged, an outer plate 97b covering the lateral end of the hairpin portion 95 of the refrigerant pipe 92, and a roof portion 97c arranged above the hairpin portion 95, and has a substantially U shape.
- the partition plate 97 a is provided so as to partition the refrigerant pipe central portion and the hairpin portion 95 in the refrigerant pipe 92 .
- the portion between the partition plate 97a of the left partition portion 97 and the partition plate 97a of the right partition portion 97 is the cooler central portion 14a.
- Each partition 97 can be formed by bending a single plate member.
- the hairpin portion 95 of the cooler 14 is not provided with the fins 91, the left end portion and the right end portion of the cooler 14 have lower heat exchange capability than the cooler central portion 14a. . Therefore, the temperature difference between the cooler chamber 52 and the vegetable chamber 5 shown in FIG. 14 is smaller around the hairpin portion 95 than around the cooler central portion 14a. Therefore, as shown in FIG. 14, a vacuum heat insulating material 39 is provided in the vegetable compartment rear wall portion 31 between the vegetable compartment 5 and the cooler compartment 52 so as to overlap with the central part 14a of the cooler when viewed from the front.
- the return air passage 80 beside the vacuum insulation material 39 so that at least a part thereof overlaps with the portion 95, the influence on the heat transfer between the vegetable compartment 5 and the cooler compartment 52 is suppressed, and the back surface of the vegetable compartment is reduced.
- the lateral width Wv (see FIG. 15) of the vacuum heat insulating material 39 can be reduced more than conventionally.
- the heater pipe 93 of the anti-frost heater 47 is arranged on the front portion of the cooler 14 .
- the anti-frost heater 47 has a holding portion 94 that holds the heater tube 93 .
- Melted water produced by melting frost by the anti-frost heater 47 of the cooler 14 is discharged to the outside of the heat insulating box body 19 via the drip tray 66 .
- the outlet 81 of the return air passage 80 for cold air from the vegetable chamber 5 is located at the vegetable chamber rear wall portion 31 at the holding portion 94 of the heater pipe 93. Cool air is returned to the cooler 14 provided in the vicinity of and above it.
- the outlet 81 in the return air passage 80 for cold air from the vegetable compartment 5 is provided at a position overlapping the holding portion 94 of the heater pipe 93 in front view.
- the outlet 81 in the return air passage 80 may be provided outside the holding portion 94 when viewed from the front.
- the position and configuration of the outlet 81 in the return air passage 80 for cold air from the vegetable compartment 5 are not limited to the above case.
- the cool air outlet 81 in the return air passage 80 may be arranged at a position overlapping with the cooler 14 or a position below the cooler 14 when viewed from the front.
- the cold air outlet 81 is positioned above the cooler 14, the cold air cannot be returned through the cooler 14, so this case is excluded.
- FIG. 23 is a schematic diagram showing another example of the return air passage 80 for cold air from the vegetable compartment 5 in the refrigerator 1 of FIG.
- the return air passage 80 has an air passage guide portion 82 extending toward the heater tube 93 on the central side of the holding portion 94 on the outlet 81 side.
- the air passage guide portion 82 is composed of, for example, a guide front portion 82b formed in the rear portion of the vegetable compartment back wall portion 31 and a heat insulating wall provided in the cooler chamber 52 that is separate from the vegetable compartment back wall portion 31. and a guide rear portion 82a.
- the air passage guide portion 82 is provided so as to incline toward the rear and central side toward the exit 81 .
- the outlet 81 of the return air passage 80 approaches the heater pipe 93, and the cold return air flowing through the outlet 81 is warmed by the heater pipe 93, so that frost generated around the outlet 81 can be suppressed.
- the outlet-side air passage guide portion 82 in the return air passage 80 for cold air from the vegetable compartment 5 is configured such that the air passage width narrows toward the exit 81 .
- a thicker heat insulating material can be arranged near the outlet 81, so that the heat insulating property around the return air passage 80 can be improved as compared with the case shown in FIG.
- the same amount of heat insulating material for example, expanded polystyrene
- the capacity of the vegetable compartment 5 can be increased by thinning the back wall part 31 of the vegetable compartment.
- the guide rear portion 82a of the air passage guide portion 82 at least partially overlaps the holding portion 94 of the heater tube 93 in a front view, and the outlet 81 of the return air passage 80 faces the heater tube 93 side. It is a guiding member.
- the rear guide portion 82a and the front guide portion 82b may be integrally formed with the polystyrene foam in which the return air passage 80 is formed on the back wall portion 31 of the vegetable compartment, or may be attached as separate members as described above.
- the return air passage 80 for cool air from the vegetable compartment 5 and the return port 45 as its entrance are located on the right side of the center line passing through the left and right centers of the heat insulating box body 19.
- the vacuum heat insulating material 39 was arranged on the left side of the return air passage 80 and the return port 45 .
- This embodiment is not limited to the above configuration.
- FIG. 24 is a schematic front view showing another example of the refrigerator 1 of FIG. 25 is a schematic front view of the refrigerator 1 of FIG. 24.
- FIG. 24 and 25 the configuration of the refrigerator 1 shown in FIG. That is, in the examples shown in FIGS. 24 and 25, the return air passage 80 and the return port 45 for cool air from the vegetable compartment 5 are provided on the left side of the left and right center lines of the heat insulating box body 19, and the vacuum is reduced.
- the heat insulating material 39 is arranged on the right side of the return air passage 80 .
- FIG. 26 is a schematic diagram showing the vacuum heat insulating material inside the wall portion that constitutes the vegetable compartment 5 of the refrigerator 1 of FIG.
- FIG. 27 is a schematic view showing the vacuum heat insulating material in the wall portion forming the vegetable compartment 5 of the refrigerator 1 of FIG. 26 from the back. 1, 2, 26, and 27, the arrangement of the vacuum insulation material of the refrigerator 1, particularly the arrangement of the vacuum insulation material on the wall constituting the vegetable compartment 5, will be described.
- the vegetable compartment 5 includes a ceiling wall portion 32 that separates the vegetable compartment 5 from the ice making compartment 3 and the temperature switching compartment 4 above, a bottom wall part 35 that separates the freezer compartment 6 from the vegetable compartment 5 below, and a cooling compartment at the rear. It is composed of a plurality of walls such as a vegetable compartment rear wall 31 that separates the container chamber 52, a right side wall 19c1 that separates the left, right and front sides of the refrigerator 1 from the outside of the refrigerator 1, a left side wall 19d1, and a door 5a.
- a sheet of rectangular vacuum heat insulating material 24 , 24 , 24 , 33 , 36 , 39 is provided inside each of the plurality of walls constituting the vegetable compartment 5 .
- the right wall portion 19c1 of the vegetable compartment 5 is part of the right side wall portion 19c of the heat insulation box 19
- the left side wall portion 19d1 of the vegetable compartment 5 is part of the left side wall portion 19d of the heat insulation box 19.
- a single rectangular plate-shaped vacuum heat insulating material 24 may be arranged over the right side surface portion 19c of the heat insulating box body 19 of the entire refrigerator 1 including the other storage compartments above and below the vegetable compartment 5.
- a single rectangular plate-shaped vacuum heat insulating material 24 may be arranged over the left side portion 19d of the heat insulating box body 19 of the entire refrigerator 1 including the other storage compartments above and below the vegetable compartment 5. .
- a rectangular plate-shaped vacuum insulation material 33 is provided in the ceiling wall portion 32 of the vegetable compartment 5 , and a rectangular plate-shaped vacuum insulation material 33 is provided in the bottom wall portion 35 of the vegetable compartment 5 .
- a vacuum heat insulating material 36 is provided, and a single rectangular plate-shaped vacuum heat insulating material 39 is arranged in the back wall portion 31 of the vegetable compartment.
- a rectangular plate-shaped vacuum heat insulating material 24 is provided in the door 5a of the vegetable compartment 5. As shown in FIG.
- the coverage of the vacuum heat insulating materials 24, 24, 24, 33, 36, and 39 with respect to the total wall surface area of the vegetable compartment 5 is preferably 80% or more.
- the vacuum heat insulating materials 24, 24, 24, 33, 36, and 39 are arranged on all six sides of the vegetable compartment 5 having a substantially rectangular parallelepiped shape or a substantially cubic shape, so that adjacent It is possible to suppress heat transfer to other storage compartments. Alternatively, cold heat transfer from other adjacent storage compartments and the cooler compartment 52 to the vegetable compartment 5 can be suppressed.
- the amount of heat entering the vegetable compartment 5 from the outside can be suppressed by the right side wall portion 19c1, the left side wall portion 19d1, and the door 5a.
- FIG. 28 is a partial schematic diagram of the vegetable compartment 5 of the refrigerator in FIG.
- At least one of the plurality of walls forming the vegetable compartment 5 has a heat retaining heater 46 .
- the bottom wall portion 35 of the vegetable compartment 5 is provided with a heat retaining heater 46 .
- at least one of the plurality of wall portions constituting the vegetable compartment 5 is configured to have the heat retaining heater 46, so that the interior of the vegetable compartment 5 is warmed by the heat retaining heater 46 when the interior of the vegetable compartment 5 is too cold. be able to.
- the cooler 14 is arranged behind the vegetable compartment 5, but the storage compartment (first storage compartment) set to a higher temperature than the other adjacent storage compartments
- the present disclosure can be applied to any configuration in which the cooler 14 is arranged in the rear.
- the vacuum insulation material 39 has been described as being included in the back wall portion 31 of the vegetable compartment, that is, the back wall part of the storage compartment, the storage compartment and the cooler 14 are separated by the vacuum insulation material 39 and the cool air from the storage compartment. You may make it divide by the return air path of. Further, in this case, the return air passage arranged beside the vacuum heat insulating material 39 may be configured by a duct.
- the refrigerator 1 of Embodiment 1 includes the heat-insulating box body 19 having an opening on the front surface covered with the door 5a and having a plurality of storage compartments formed therein.
- a first storage chamber eg, the vegetable compartment 5
- the other adjacent storage compartments eg, the ice making compartment 3 and the temperature switching compartment 4
- a cooler compartment 52 provided behind the first storage compartment and in which the cooler 14 is arranged.
- first vacuum heat insulating material vacuum heat insulating material 39
- return air passage 80 that communicates with the chamber 52 and through which cold air returning to the cooler chamber 52 flows.
- first vacuum heat insulating material vacuum heat insulating material 39
- the return air passage 80 is provided adjacent to the first vacuum heat insulating material so as not to overlap the first vacuum heat insulating material and to overlap the cooler 14 .
- a cold air outlet 81 in the return air path 80 is arranged at a position overlapping with the cooler 14 or at a position below the cooler 14 .
- the return air passage 80 does not overlap the first vacuum heat insulating material, so there is no need for a space for the return air passage 80 behind the first vacuum heat insulating material. , a reduction in the storage space of the first storage compartment (vegetable compartment 5) can be avoided.
- the return air passage 80 is provided with the first vacuum so as to overlap a portion of the cooler 14 that does not overlap with the first vacuum heat insulating material. It is provided adjacent to the heat insulating material.
- a cold air outlet 81 in the return air path 80 is arranged at a position overlapping with the cooler 14 or at a position below the cooler 14 . Therefore, in the present disclosure, the return air passage 80 is provided to return cold air through the cooler 14 without extending the return air passage 80 laterally and bypassing the first vacuum insulation material as in the conventional art. can be done. Thus, according to the present disclosure, it is possible to provide a refrigerator 1 in which a return air passage 80 that returns cold air through the cooler 14 can be provided without reducing storage space.
- the first vacuum heat insulating material (vacuum heat insulating material 39) has a width Wv that is smaller than the width Wc of the cooler 14.
- the first vacuum heat insulating material is arranged such that the right end of the first vacuum heat insulating material covers the right end of the cooler 14, or the left end of the first vacuum heat insulating material A portion is provided to cover the left end of the cooler 14 .
- one sheet of vacuum heat insulating material is shifted in the left-right direction with respect to the cooler 14, and the return air passage 80 is arranged on the opposite side of the shift direction, so that the first vacuum heat insulating material and the return air flow path are arranged. Covering the front face of the cooler 14 with wind and 80 can be easily achieved with a simple shape and arrangement.
- the first vacuum heat insulating material (vacuum heat insulating material 39) has a width Wv that is smaller than the width Wc of the cooler 14.
- the first vacuum heat insulating material is arranged such that the right end of the first vacuum heat insulating material matches the right end of the cooler 14, or the left end of the first vacuum heat insulating material is provided to match the left end of the cooler 14 .
- the front surface of the cooler 14 is covered with the first vacuum heat insulating material (vacuum heat insulating material 39) and the return air passage 80 to suppress heat transfer between the cooler 14 and the vegetable compartment 5, while the first Cost can be reduced by minimizing the size of the vacuum insulation.
- first vacuum heat insulating material vacuum heat insulating material 39
- the heat insulating box 19 includes a first vacuum heat insulating material (vacuum heat insulating material 39) inside, and partitions the first store room (vegetable room 5) and the cooler room 52 from the back wall of the store room (vegetable room 5).
- the back wall portion 31) of the chamber is provided, and the return air passage 80 is provided in the back wall portion of the storage chamber.
- the cooler chamber 52 and the first storage chamber are communicated with the storage chamber rear wall portion (vegetable chamber rear wall portion 31), and the cold air blown out to the first storage chamber circulates.
- a storage compartment outlet air passage (outlet air passage 30) is provided.
- a blowout port 44 that is an outlet of cold air in the storage chamber blowing air passage and a return port 45 that is an inlet of cold air in the return air passage 80 are formed. It is When the insulation box 19 is viewed from the front, the first vacuum insulation material (vacuum insulation material 39 ) is provided at a position that does not overlap with either the outlet 44 or the return port 45 .
- blow-out air passage 30 can be of a simple shape.
- the return port 45 is provided on the inner wall at the same height as the blowout port 44 or above the blowout port 44 .
- the cool air that has been warmed and risen in the first storage compartment (vegetable compartment 5) flows into the return air passage 80. becomes easier.
- the blowout port 44 directs the cold air cooled by the cooler 14, or the cold air cooled by the cooler 14 and passed through another storage compartment (for example, the refrigerator compartment 2) to the first storage compartment (vegetable compartment 5) It is intended to blow out inside.
- the stored food such as food stored in the first storage compartment is effectively cooled. can be cooled.
- cold air is blown into the first storage compartment (vegetable compartment 5) through the other storage compartment, it is possible to prevent the stored food in the vegetable compartment 5 from being too cold.
- the refrigerator 1 also includes an air volume adjustment device 18c that adjusts the amount of cold air blown out from the blowout port 44.
- an air volume adjustment device 18c that adjusts the amount of cold air blown out from the blowout port 44.
- the amount of cold air supplied to the first storage compartment is adjusted according to the temperature of the first storage compartment (vegetable compartment 5), or the relationship between the set temperature and capacity of the other storage compartments of the refrigerator 1, and the like. It is possible to prevent overcooling of stored products.
- the refrigerator 1 also includes a heat retaining heater 46 for keeping the temperature of the first storage compartment (vegetable compartment 5) warm. is provided on one of the plurality of wall portions. As a result, when the inside of the first storage chamber is too cold, the inside of the first storage chamber is warmed by the heat retaining heater 46, and unintentional freezing of the stored items in the first storage chamber can be avoided.
- the first storage compartment is the vegetable compartment 5, and the other storage compartments are storage compartments having a temperature lower than the temperature zone of the vegetable compartment 5 (for example, the refrigerator compartment 2). , the freezer compartment 6, the ice making compartment 3, or the chilled compartment. Accordingly, the present disclosure can be applied to various refrigerators 1 provided with the vegetable compartment 5 and these other storage compartments, and similar effects can be obtained.
- a refrigerator compartment 2 Inside the heat insulating box 19 are formed a refrigerator compartment 2, an ice making compartment 3, a temperature switching compartment 4, a freezer compartment 6, and a vegetable compartment 5 as a first storage compartment.
- refrigerator compartment 2 , ice making compartment 3 , temperature switching compartment 4 , vegetable compartment 5 and freezer compartment 6 are arranged in this order.
- the return air passage 80 connected to the vegetable compartment 5 has a simple shape, while the ice making compartment 3 and the freezer compartment set to the minus temperature zone are provided above and below the vegetable compartment 5 set to the plus temperature zone. 6 can be efficiently supplied with cool air from the cooler 14 .
- the first storage chamber and the other storage chambers are arranged in the vertical direction of the heat insulating box body 19 .
- Each of the two side walls (the right side 19c and the left side 19d) of the heat insulating box 19 is provided with a second vacuum heat insulating material (vacuum heat insulating material 24, 24).
- the vacuum heat insulating material 24 used in the refrigerator 1 is arranged efficiently. As a result, the number of vacuum insulation materials used can be reduced, leading to a reduction in manufacturing costs, simplification of assembly, and improvement in manufacturing efficiency.
- FIG. 29 is a schematic front view of refrigerator 1 according to Embodiment 2 of the present disclosure.
- FIG. 30 is a schematic diagram showing a CC cross section of the refrigerator 1 of FIG. 29. As shown in FIG. Regarding the refrigerator 1 of the second embodiment, a configuration different from that of the refrigerator 1 of the first embodiment will be described.
- a single rectangular plate-shaped vacuum heat insulating material 39 overlaps the whole air passage 41 for blowing cold air to the freezer compartment 6 when viewed from the front.
- the return air passage 80 is arranged so as to cover the right portion of the cooler 14 that does not overlap with the vacuum heat insulating material 39 when viewed from the front.
- the return air passage 80 and the vacuum heat insulating material 39 are arranged so as not to overlap when viewed from the front.
- the foam heat insulating material 40a is arranged so as to cover the left side portion of the cooler 14 that does not overlap with the vacuum heat insulating material 39 when viewed from the front. When viewed from the front, the foamed heat insulating material 40a does not overlap the vacuum heat insulating material 39 or the blowing air passage 41.
- FIG. 30 shows a longitudinal cross-section that does not pass through the vacuum heat insulating material 39 but passes through the cooler 14 .
- the foam insulation material 40a is a portion between the vegetable compartment 5 and the cooler 14 where neither the vacuum insulation material 39 nor the blowing air passage 41 is arranged. It suppresses the infiltration of cold heat into the It should be noted that the heat insulating material arranged in the portion between the vegetable compartment 5 and the cooler 14 where neither the vacuum heat insulating material 39 nor the blowing air passage 41 is arranged is limited to the foam heat insulating material 40a.
- the inside of the heat insulating box 19 includes the freezer compartment 6 adjacent to the first storage compartment (vegetable compartment 5), the cooler compartment 52, and the freezer compartment 6.
- a freezer compartment blowing air passage blowing air passage 41
- a foam heat insulating material 40a is provided inside the heat insulating box 19.
- the first vacuum heat insulating material vacuum heat insulating material 39
- the foam heat insulating material 40 a is provided in a region of the cooler 14 that overlaps neither the first vacuum heat insulating material nor the return air passage 80 .
- the inflow of cold heat from the cool air passage 41 to the freezer compartment 6 into the vegetable compartment 5 is suppressed by the vacuum heat insulating material 39 and the foam heat insulating material arranged in front.
- the vacuum heat insulating material 39 can be further reduced as compared with the case of the first embodiment, and the manufacturing cost can be reduced.
- Embodiments 1 and 2 of the present disclosure may be combined or applied to other portions.
- the vegetable compartment back wall portion 31 that separates the cooler chamber 52 and the vegetable compartment 5 is provided. 39 may be included.
- the heat insulating foam material 40 a is part of the heat insulating foam material 40 arranged around the vacuum heat insulating material 39 in the back wall portion 31 of the vegetable compartment.
- the present disclosure can be applied to any configuration in which there are two or more storage compartments with different set temperatures, and at least a portion of the storage compartment on the high temperature side and the cooler 14 overlap when viewed from the front.
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Abstract
Description
図1は、本開示の実施の形態1に係る冷蔵庫1を示す外観斜視図である。図2は、図1の冷蔵庫1の内部を示す正面概略図である。図3は、図1の冷蔵庫1の前後方向の縦断面を示す説明図である。図4は、図1の冷蔵庫の冷媒回路を示す図である。図1~図4に基づき、冷蔵庫1の概略構成について説明する。
図29は、本開示の実施の形態2に係る冷蔵庫1の正面模式図である。図30は、図29の冷蔵庫1のC-C断面を示す模式図である。実施の形態2の冷蔵庫1について、実施の形態1の冷蔵庫1と異なる構成について説明する。
Claims (14)
- 前面に扉で覆われる開口を有し、内部に複数の貯蔵室が形成された断熱箱体を備え、
前記断熱箱体の内部には、
隣接する他の前記貯蔵室よりも高温に設定されて貯蔵物を貯蔵する第1の貯蔵室と、
前記第1の貯蔵室の後方に設けられ、冷却器が配置された冷却器室と、
前記第1の貯蔵室と前記冷却器室との間に配置された第1の真空断熱材と、
前記第1の貯蔵室と前記冷却器室とを連通させ、前記冷却器室へ戻る冷気が流通する戻り風路と、が設けられ、
前記断熱箱体を正面視した場合において、
前記第1の真空断熱材は、前記冷却器の一部と重複するように配置され、
前記戻り風路は、前記第1の真空断熱材と重複せず、且つ前記冷却器と重複するように、前記第1の真空断熱材と隣接して設けられ、
前記戻り風路における前記冷気の出口は、前記冷却器と重複する位置又は前記冷却器の下方の位置に配置されている
冷蔵庫。 - 前記第1の真空断熱材は、前記冷却器の横幅よりも小さい横幅を有し、
前記断熱箱体を正面視した場合において、前記第1の真空断熱材は、当該第1の真空断熱材の右端部が前記冷却器の右端を覆うように、又は当該第1の真空断熱材の左端部が前記冷却器の左端を覆うように設けられている
請求項1に記載の冷蔵庫。 - 前記第1の真空断熱材は、前記冷却器の横幅よりも小さい横幅を有し、
前記断熱箱体を正面視した場合において、前記第1の真空断熱材は、当該第1の真空断熱材の右端が前記冷却器の右端に合うように、又は、当該第1の真空断熱材の左端が前記冷却器の左端と合うように設けられている
請求項1に記載の冷蔵庫。 - 前記断熱箱体の内部には、
前記第1の貯蔵室と隣接した冷凍室と、
前記冷却器室と前記冷凍室とを連通させ、前記冷凍室へ吹き出される前記冷気が流通する冷凍室吹出し風路と、
発泡断熱材と、が設けられ、
前記断熱箱体を正面視した場合において、前記第1の真空断熱材は、前記冷凍室吹出し風路において前記第1の貯蔵室の後方に位置する部分の全部と重複するように設けられ、前記発泡断熱材は、前記冷却器において前記第1の真空断熱材および前記戻り風路のいずれとも重複していない領域に設けられている
請求項1に記載の冷蔵庫。 - 前記第1の真空断熱材は、一枚の矩形の板状の真空断熱材で構成されている
請求項1~4のいずれか一項に記載の冷蔵庫。 - 前記断熱箱体は、
前記第1の真空断熱材を内部に含み、前記第1の貯蔵室と前記冷却器室とを仕切る貯蔵室背面壁部を備え、
前記戻り風路は、前記貯蔵室背面壁部に設けられている
請求項1~5のいずれか一項に記載の冷蔵庫。 - 前記貯蔵室背面壁部には、前記冷却器室と前記第1の貯蔵室とを連通させ、前記第1の貯蔵室へ吹き出される前記冷気が流通する貯蔵室吹出し風路が設けられており、
前記貯蔵室背面壁部における前記第1の貯蔵室の側の内壁には、前記貯蔵室吹出し風路における前記冷気の出口である吹出し口、および、前記戻り風路における前記冷気の入口である戻り口が形成されており、
前記断熱箱体を正面視した場合において、前記第1の真空断熱材は、前記吹出し口および前記戻り口のいずれとも重複しない位置に設けられている
請求項6に記載の冷蔵庫。 - 前記内壁において前記戻り口は、前記吹出し口と同じ高さ、又は前記吹出し口よりも上に設けられている
請求項7に記載の冷蔵庫。 - 前記吹出し口は、前記冷却器により冷却された前記冷気を直接、又は、前記冷却器により冷却されて他の前記貯蔵室を通った前記冷気を、前記第1の貯蔵室内に吹き出させるものである
請求項7又は8に記載の冷蔵庫。 - 前記吹出し口から吹き出させる前記冷気の量を調節する風量調整装置を備えた
請求項7~9のいずれか一項に記載の冷蔵庫。 - 前記第1の貯蔵室を保温する保温ヒーターを備え、
前記断熱箱体は、前記第1の貯蔵室を構成する複数の壁部を有し、
前記保温ヒーターは、複数の前記壁部のいずれかに設けられている
請求項1~10のいずれか一項に記載の冷蔵庫。 - 前記第1の貯蔵室は、野菜室であり、
他の前記貯蔵室は、前記野菜室の温度帯よりも低温の貯蔵室、前記野菜室の温度帯よりも低温の温度帯に切り替える温度切替室、冷凍室、製氷室、あるいはチルド室である
請求項1~11のいずれか一項に記載の冷蔵庫。 - 前記断熱箱体の内部には、冷蔵室と、製氷室と、温度切替室と、冷凍室と、前記第1の貯蔵室である野菜室と、が形成され、上から、前記冷蔵室、前記製氷室および温度切替室、野菜室、冷凍室の順で配置されている
請求項1~11のいずれか一項に記載の冷蔵庫。 - 前記第1の貯蔵室と他の前記貯蔵室とは、前記断熱箱体の上下方向に配置され、
前記断熱箱体の2つの側壁部のそれぞれは、上下方向で他の前記貯蔵室および前記第1の貯蔵室にわたって設けられた第2の真空断熱材を有する
請求項1~13のいずれか一項に記載の冷蔵庫。
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