WO2023063165A1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

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Publication number
WO2023063165A1
WO2023063165A1 PCT/JP2022/037110 JP2022037110W WO2023063165A1 WO 2023063165 A1 WO2023063165 A1 WO 2023063165A1 JP 2022037110 W JP2022037110 W JP 2022037110W WO 2023063165 A1 WO2023063165 A1 WO 2023063165A1
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WO
WIPO (PCT)
Prior art keywords
cooler
refrigerating
refrigeration
outlet
compartment
Prior art date
Application number
PCT/JP2022/037110
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English (en)
Japanese (ja)
Inventor
元康 市場
克則 堀井
晃一 西村
航 安部
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN202280068737.XA priority Critical patent/CN118103650A/zh
Publication of WO2023063165A1 publication Critical patent/WO2023063165A1/fr

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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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • 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
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag

Definitions

  • This disclosure relates to refrigerators.
  • Patent Document 1 discloses a refrigerator. This refrigerator performs heat exchange in a refrigerating cycle using a multi-flow type refrigerator having a flat tube inside which a plurality of channels through which a refrigerant flows are formed.
  • the present disclosure provides a refrigerator capable of suppressing a decrease in internal volume.
  • a refrigerator according to the present disclosure is a refrigerator comprising at least a refrigerating compartment and a freezing compartment, wherein a refrigerating cooler for cooling the refrigerating compartment is provided on the back side of the refrigerating compartment, and the freezing compartment is provided on the back side of the freezing compartment. and a refrigerating cooler for cooling the refrigerating cooler, wherein the refrigerating cooler is composed of a microchannel cooler in which a refrigerant flows in series, and the cold air flowing through the refrigerating cooler This is the direction from the bottom to the top of the cooler.
  • the refrigerator according to the present disclosure can suppress a decrease in internal volume.
  • FIG. 1 is a side cross-sectional view showing an outline of a refrigerator according to Embodiment 1.
  • FIG. FIG. 2 is a schematic front view showing the outline of the refrigerator according to Embodiment 1.
  • FIG. 5 is a plan view showing the cooler for refrigeration according to Embodiment 1;
  • FIG. 6 is a front view showing the cooler for refrigeration according to Embodiment 1;
  • FIG. 1 is a schematic cross-sectional view showing the outline of a refrigerator according to the present invention.
  • the refrigerator 1 has a box-shaped main body 10 .
  • An upper partition plate 11 and a lower partition plate 12 are provided at two locations in the vertical direction of the main body 10 to divide the interior of the main body 10 into three spaces.
  • the space above the upper partition plate 11 serves as a refrigerator compartment 13
  • the space between the upper partition plate 11 and the lower partition plate 12 serves as a freezer compartment 14
  • the space below the lower partition plate 12 serves as a vegetable compartment 15.
  • a low-temperature chamber 16 whose temperature is lower than that of the refrigerating chamber 13 is provided below the refrigerating chamber 13 .
  • a shelf board 17 for placing food is provided inside the refrigeration compartment 13 .
  • an ice making compartment 18 for storing ice is provided inside the freezer compartment 14.
  • a side-opening door 20 for the refrigerator compartment is provided on the front surface of the refrigerator compartment 13 so as to be freely opened and closed.
  • a freezer compartment drawer door 21 is openably and closably provided on the front surface of the freezer compartment 14, and inside the freezer drawer door 21, a freezer drawer case 22 for storing food is provided inside.
  • a vegetable compartment drawer door 23 is provided at the front opening of the vegetable compartment 15 so that it can be opened and closed. Inside the vegetable compartment drawer door 23, a vegetable compartment drawer case 24 for storing food is provided. is provided.
  • a cooling chamber 30 for refrigerating is provided on the back side of the refrigerating chamber 13 of the refrigerator 1 .
  • a refrigerating chamber duct 31 extending above the refrigerating chamber 13 is connected above the cooling chamber 30 for refrigerating.
  • a refrigerating cooler 32 is accommodated in the refrigerating cooling chamber 30 .
  • the refrigerating cooler 32 is a microchannel cooler.
  • a microchannel cooler is, for example, a cooler composed of flat perforated tubes and fins.
  • a flat perforated tube is a flat tube in which a plurality of channels through which a coolant flows are formed. Details of the refrigerating cooler 32 will be described later.
  • a refrigerating fan 33 is arranged above the refrigerating cooler 32 in the refrigerating cooling chamber 30 .
  • a centrifugal fan for example, is used as the cooling fan 33 .
  • the centrifugal fan is a fan that draws in cool air that has passed through the refrigerating cooler 32 from the central portion of one side in the axial direction of the rotating blades and blows it out in the centrifugal direction. Also, the centrifugal fan draws cold air from the rear of the cooling chamber 30 for refrigeration and blows it out in the centrifugal direction.
  • the centrifugal fan draws cold air from the rear of the cooling chamber 30 for refrigeration, but may be configured to draw cold air from the front of the cooling chamber 30 for refrigeration.
  • the cooling fan 33 may be, for example, an axial fan.
  • the axial fan is inclined so that the blowing side faces upward so as to efficiently blow out the cold air cooled by the cooler 32 for refrigeration to the refrigerator compartment 13 .
  • cool air can be easily discharged downward.
  • Frost adhering to the cooler 32 for refrigeration can be defrosted by the air inside the refrigerator compartment. In this case, it is preferable to drive the refrigerating fan 33 without flowing the refrigerant through the refrigerating cooler 32 .
  • the refrigerating compartment duct 31 is connected to a casing 33a on the outlet side of the refrigerating fan 33.
  • the refrigerating compartment duct 31 is tapered such that its width gradually increases upward.
  • the refrigerating compartment duct 31 has a branch duct 34 extending left and right on the way.
  • Refrigerating compartment 13 is provided with refrigerating outlet 35 communicating with refrigerating compartment duct 31 and branch duct 34 .
  • a refrigerator compartment damper 36 is provided in the middle of the refrigerator compartment duct 31 .
  • the refrigerating compartment damper 36 is configured to switch between supplying cold air cooled by the refrigerating cooler 32 to the refrigerating compartment duct 31 and stopping the air supply by opening and closing the refrigerating compartment damper 36 .
  • a shielding plate 39 is provided on the lower surface side of the cooler 32 for refrigeration and below the header described later.
  • the shielding plate 39 covers the lower part of the header, and has a function of guiding the inside air sent from the refrigerator compartment 13 to the later-described air flow path of the cooler 32 for refrigeration.
  • the shield plate 39 may be provided in the cooling chamber 30 for refrigeration. In this case, the shielding plate 39 is provided at a position corresponding to the lower portion of the header, which will be described later.
  • a freezing cooling chamber 40 is provided on the back side of the freezing chamber 14 of the refrigerator 1 .
  • a freezing cooler 41 is accommodated in the freezing cooling chamber 40 .
  • the freezing cooler 41 is, for example, a fin-tube cooler.
  • a fin-tube cooler is, for example, a cooler composed of a circular pipe and flat fins.
  • a freezing fan 42 that sends cold air cooled by the freezing cooler 41 to the inside of the freezing compartment 14 is arranged above the freezing cooler 41 .
  • a fin-tube cooler has a lower heat transfer efficiency than a microchannel cooler because the distance between the refrigerant pipe and the tip of the fin is large, and the temperature of the tip of the fin is less likely to drop. Therefore, clogging due to frost formation can be suppressed, and the number of times the heater for defrosting is energized can be reduced. Therefore, power consumption can be suppressed.
  • An axial fan for example, is used as the cooling fan 42 .
  • the axial fan is inclined so that the blowing side faces upward so as to efficiently blow out the cold air cooled by the freezing cooler 41 to the freezer compartment 14 .
  • a freezer outlet 43 is formed on the back surface of the freezer compartment 14 .
  • the freezing fan 42 may be, for example, a centrifugal fan.
  • a glass tube heater 44 for defrosting frost adhering to the freezing cooler 41 is arranged below the freezing cooler 41 . Instead of using the glass tube heater 44, a pipe heater that directly heats the freezing cooler 41 may be used to defrost the freezing cooler 41.
  • FIG. Cold air in the cooling chamber 40 for freezing is configured to be sent to the vegetable compartment 15 through a communication hole 45 formed in the lower partition plate 12 .
  • a dew tray 37 for refrigeration is arranged below the cooler 32 for refrigeration.
  • a freezing dew tray 46 is arranged below the freezing cooler 41 .
  • An evaporating dish 47 is arranged below the back side of the vegetable compartment 15 .
  • a refrigerating drain pipe 38 is connected to the refrigerating dew tray 37 .
  • a freezing drain pipe 48 is connected to the freezing dew pan 46 .
  • the lower ends of refrigerating drain pipe 38 and freezing drain pipe 48 penetrate upper partition plate 11 and lower partition plate 12 , respectively, and extend to the vicinity of the upper portion of evaporating plate 47 .
  • the drain accumulated in the refrigerating dew pan 37 and the freezing dew pan 46 can be sent to the evaporating pan 47 via the refrigerating drain pipe 38 and the freezing drain pipe 48, and the evaporating pan 47 evaporates the drain. configured to do so.
  • a compressor 50 is installed on the rear upper part of the main body.
  • FIG. 3 is a refrigerating cycle diagram showing the refrigerating cycle of the refrigerator 1.
  • the refrigerator 1 includes a compressor 50, a condenser 51, a switching valve 52, a refrigerating decompression means 53, a refrigerating cooler 32, a refrigerating return pipe 55a, and a freezing decompressor.
  • the means 54 , the refrigerating cooler 41 , and the refrigerating return pipe 55 b are connected by the refrigerant return pipe 55 .
  • a refrigerating capillary tube 53 and a freezing capillary tube 54 are provided as decompressing means 53 for refrigerating and decompressing means 54, respectively.
  • the refrigerating pressure reducing means 53 and the refrigerating cooler 32 and the freezing pressure reducing means 54 and the freezing cooler 41 are connected in parallel with each other via the switching valve 52 .
  • FIG. 4 is a perspective view showing cooler 32 for refrigeration according to the first embodiment.
  • FIG. 5 is a plan view showing cooler 32 for refrigeration according to the first embodiment.
  • FIG. 6 is a front view showing cooler 32 for refrigeration according to the first embodiment.
  • the refrigerating cooler 32 includes a refrigerant conduction member 60 through which refrigerant flows.
  • the refrigerant conducting member 60 is composed of a flat perforated tube in which a plurality of substantially rectangular passages are continuously arranged.
  • the refrigerant conduction member 60 is formed in a meandering shape including a plurality of flat tubes 61 formed substantially parallel with a predetermined interval and curved portions 62 connecting ends of the flat tubes 61 .
  • four flat tubes 61 are provided between headers, which will be described later.
  • the number of flat tubes 61 is not limited to this, and can be set arbitrarily. Further, each flat tube 61 and the bent portion 62 may be integrated, and one flat tube 61 may meander and be formed between the headers.
  • the flat tube 61 and the bent portion 62 are vertically divided into three upper regions 63, a middle region 64, and a lower region 65 in this embodiment.
  • the area is vertically divided into three areas, but the area may be vertically divided into two areas or four or more areas.
  • An inlet side header 66 and an outlet side header 67 extending vertically are provided at one end of the outermost flat tube 61 .
  • the inlet-side header 66 and the outlet-side header 67 are made of circular tubes, for example.
  • the inlet-side header 66 and the outlet-side header 67 are arranged with their positions shifted in the width direction (horizontal direction) of the refrigerating cooler 32 .
  • the side header 67 is arranged at a position farther from the flat tube 61 than the inlet side header 66, and the inlet side header 66 and the outlet side header 67 are alternately provided.
  • the outlet side header 67 may be arranged near the flat tube 61 and the inlet side header 66 may be arranged at a position farther from the flat tube 61 than the outlet side header 67 is.
  • the inlet side header 66 and the outlet side header 67 are attached so as not to protrude from the end surface of the flat tube 61 in the depth direction (front-rear direction).
  • the inlet-side header 66 is connected to the flat tube 61 via a bent portion 61a formed by bending the end of the flat tube 61
  • the outlet-side header 67 is connected to the flat tube 61 by bending the end of the flat tube 61. It is connected to the flat tube 61 via the curved portion 61a.
  • the inlet-side header 66 and the outlet-side header 67 By arranging the inlet-side header 66 and the outlet-side header 67 in this way, the end faces of the inlet-side header 66 and the outlet-side header 67 are flush with the outer surface of the flat tube 61 of the refrigerant conducting member 60, and the inlet-side header
  • the side surfaces of 66 and outlet side header 67 are arranged so as not to protrude from the thickness of flat tube 61 .
  • the thickness dimension of the refrigerating cooler 32 can be reduced, and when the refrigerating cooler 32 is accommodated inside the refrigerating cooling chamber 30, the internal space of the refrigerating chamber duct 31 can be reduced. can.
  • the internal space of the refrigerator compartment 13 can be enlarged.
  • an inlet pipe 68 is connected to a side surface of the inlet header 66 on the rear side of the refrigerator compartment 13 at a height corresponding to the lower region 65 .
  • an inlet-side pipe 68 is connected to the side of the inlet-side header 66 in a direction toward the flat tube 61 to which the outlet-side header 67 is connected.
  • the inlet-side pipe 68 is preferably connected substantially parallel to the depth direction (front-rear direction) of the refrigerating cooler 32 .
  • the outlet side header 67 is formed higher than the height dimension of the inlet side header 66 .
  • Outlet-side pipe 69 is connected to a side surface of outlet-side header 67 facing forward of refrigerator compartment 13 and at a position above the upper end of upper region 63 .
  • the outlet side pipe 69 is connected to the side surface of the outlet side header 67 in the direction toward the flat tube 61 to which the inlet side header 66 is connected.
  • the outlet pipe 69 is preferably connected substantially parallel to the inlet pipe 68 . That is, the outlet pipe 69 is connected to a position above the upper end of the uppermost flat tube.
  • the inlet-side pipe 68 extends upward substantially parallel to the inlet-side header 66
  • the outlet-side pipe 69 extends upward substantially parallel to the outlet-side header 67
  • the inlet-side pipe 68 protrudes toward the outlet-side header 67 in the thickness direction (front-rear direction) of the flat pipe 61
  • the outlet-side pipe 69 protrudes toward the inlet-side header 66 from the flat pipe 61 . It protrudes in the thickness direction (front-rear direction).
  • the inlet-side pipe 68 and the outlet-side pipe 69 have diameters smaller than those of the inlet-side header 66 and the outlet-side header 67 .
  • the inlet-side pipe 68 and the outlet-side pipe 69 As described above, the arrangement space for the inlet-side pipe 68 and the outlet-side pipe 69 can be reduced.
  • the inlet pipe 68 is connected to the capillary tube 53 for refrigeration
  • the outlet pipe 69 is connected to the return pipe 55a for refrigeration.
  • the refrigerating capillary tube 53 is embedded in the rear heat insulating wall of the main body 10 after extending above the inlet side header 66 .
  • the refrigerating return pipe 55 a extends above the outlet side header 67 and is embedded in the rear heat insulating wall of the main body 10 .
  • the refrigerating capillary tube 53 and the refrigerating return pipe 55a are closely connected in the rear heat insulating wall so as to exchange heat.
  • An accumulator (gas-liquid separator) for preventing liquid refrigerant from flowing into the compressor 50 is not provided between the outlet pipe 69 and the refrigerating return pipe 55a connected downstream.
  • the coolant flows in from the lower portion of the inlet side header 66 and the coolant flows out from the upper portion of the outlet side header 67 .
  • the flow of the coolant is made parallel to the ventilation direction of the cool air.
  • parallel flow refers to the case where the flow direction of the coolant is the same as the ventilation direction of the cool air.
  • the inlet-side header 66 and the outlet-side header 67 may be provided at different ends of the flat tube 61 , respectively, and the inlet-side header 66 and the outlet-side header 67 may be arranged on both sides of the refrigerant conducting member 60 . .
  • the refrigerant inlet of the inlet side header 66 may be provided upward, and the refrigerant outlet of the outlet side header 67 may be provided downward.
  • a partition plate 70 is provided at a position corresponding to the boundary between the lower region 65 and the middle region 64 of the inlet side header 66 .
  • the positions corresponding to the middle region 64 and the upper region 63 of the inlet side header 66 communicate with each other.
  • a partition plate 71 is provided at a position corresponding to the boundary between the upper region 63 and the middle region 64 of the outlet side header 67 to block communication within the outlet side header 67 .
  • Positions corresponding to the middle region 64 and the lower region 65 of the outlet side header 67 communicate with each other.
  • the coolant that has flowed in from the lower portion of the inlet side header 66 flows through the interior of the lower region 65 of the coolant conduction member 60 and into the outlet side header 67 .
  • the refrigerant that has flowed through the outlet side header 67 flows into the central region 64 of the refrigerant conduction member 60 , flows into the inlet side header 66 , flows through the inlet side header 66 and through the lower region 65 , and then flows through the upper portion of the outlet side header 67 .
  • each flat tube 61 is connected in series.
  • An air flow path 72 is formed between each flat tube 61 of the refrigerant conduction member 60 .
  • fins 73 are arranged which are continuously provided by being inclined at a predetermined angle with respect to the flat tube 61 and bent in a zigzag shape.
  • an air flow path 72 having a substantially triangular cross-sectional shape is continuously formed. Note that the air flow path 72 having a rectangular cross-sectional shape may be formed continuously.
  • the air flow path 72 is formed vertically along the vertical direction of the cooling chamber 30 for refrigeration.
  • the inside air flowing upward from the bottom of the cooling chamber 30 for refrigeration flows through the air flow path 72, and at this time, exchanges heat with the refrigerant flowing inside the refrigerant conduction member 60, and is cooled to a predetermined temperature.
  • the positions of the fins 73 in the lower region 65 and the fins 73 in the upper region 63 may be shifted. may be arranged with a phase shift of 1/2. That is, the substantially triangular air flow paths 72 in the upper region 63 and the substantially triangular air flow channels 72 in the lower region 65 may be formed so as to overlap each other in plan view. Further, the phase of the fins 73 may be shifted by shifting the phase of the fins 73 in the central region 64 with respect to the fins in the upper region 63 .
  • the inclination angle of the fins 73 in the lower region 65 on the upstream side of the air flow path may be set larger than the inclination angle of the fins 73 in the upper region 63 on the downstream side of the air flow path. That is, the fins 73 of the lower region 65 may be formed with a large angle corresponding to the vertex of the substantially triangular air flow path 72 . With this configuration, a large cross-sectional area of the air flow path 72 can be ensured in the lower region 65 on the upstream side of the air flow path 72 . Therefore, even if frost or condensation adheres to the fins 73 when the inside air exchanges heat with the refrigerant, it is possible to prevent the air flow path 72 from being blocked by the frost or condensation. flow can be secured.
  • the lower ends of the fins 73 are positioned below the lower ends of the coolant conduction members 60 .
  • the upper ends of the fins 73 may be positioned above the upper ends of the coolant conducting members 60 . As a result, since the fin area is increased, the heat exchange amount between the fins 73 and the inside air is increased, and the heat exchange efficiency of the inside air can be enhanced.
  • the refrigerant sent to the cooler 32 for refrigeration flows from the inlet side header 66 of the refrigerant conducting member 60 and flows inside the lower region 65 .
  • the refrigerant that has flowed to the outlet side header 67 flows through the middle region 64 via the outlet side header 67 , is sent to the inlet side header 66 , and flows through the upper region 63 via the inlet side header 66 .
  • Refrigerant that has flowed through the upper region 63 flows out from the outlet side header 67 and is returned to the compressor 50 .
  • the refrigerating cooler By driving the refrigerating fan 33 while the refrigerant is flowing inside the refrigerant conducting member 60, when the air inside the refrigerating chamber 13 flows upward from below the refrigerating chamber duct 31, the refrigerating cooler It passes through 32 air channels 72 . In other words, the cold air passing through the cooler 32 for refrigeration is directed upward from below the cooler 32 for refrigeration. As a result, the air inside the refrigerator compartment 13 exchanges heat with the refrigerant flowing through the refrigerant conduction member 60 and is cooled.
  • the refrigerant sent to the freezing cooler 41 drives the freezing fan 42 to exchange heat with the inside air flowing upward from the bottom of the freezing cooling chamber 40, and the air cooled by the refrigerant Returned to chamber 14 .
  • the refrigerating cooler 32 for cooling the refrigerating chamber 13 is provided on the back side of the refrigerating chamber 13, and the cooling device 32 for cooling the freezing chamber 14 is provided on the back side of the freezing chamber 14.
  • the refrigerating cooler 41 is provided, and the refrigerating cooler 32 is composed of a microchannel cooler in which the refrigerant flows in series. The direction is upward from . As a result, it is not necessary to newly provide a space for ventilating the inside air in front of and behind the refrigerating cooler 32, so that the decrease in the inside volume can be suppressed.
  • refrigerating chamber 13 includes therein low-temperature chamber 16 whose temperature is lower than that of refrigerating chamber 13 , and refrigerating cooler 32 is arranged on the back side of low-temperature chamber 16 .
  • refrigerating cooler 32 is arranged on the back side of low-temperature chamber 16 .
  • a refrigerating fan 33 having a depth dimension equal to or smaller than the thickness dimension of the refrigerating cooler 32 is installed downstream of the cooler 32 for cool air. .
  • the depth dimension of the space in which the cooler 32 for refrigeration is installed can be reduced. Therefore, it is possible to secure a larger volume of the refrigerator compartment 13 than the volume of the refrigerator 1 .
  • the refrigerating cooler 41 is composed of a fin-tube cooler. As a result, the number of times the heater is energized for defrosting can be reduced, so power consumption can be suppressed.
  • the refrigerating cooler 32 includes a plurality of flat tubes 61 formed substantially parallel with a predetermined interval, bending portions 62 connecting ends of the flat tubes 61, flat tube 61 and an air flow path 72 through which air flows; is provided on one end side of the flat tube 61 . Accordingly, the inlet side header 66 and the outlet side header 67 can be arranged on one side of the refrigerating cooler 32, so that the refrigerating cooler 32 can be miniaturized.
  • the inlet side piping 68 of the refrigerant is connected to the lower side surface of the inlet side header 66
  • the outlet side piping 69 of the refrigerant is connected to the upper side surface of the outlet side header 67 .
  • the outlet pipe 69 is connected above the upper end of the flat tube 61 .
  • the outlet side header 67 functions to separate gas and liquid, and Only gas refrigerant can be sent, and therefore return of liquid refrigerant to the compressor 50 can be suppressed. Therefore, since it is not necessary to newly provide a space for connecting an accumulator to the refrigerating cooler 32, it is possible to suppress a reduction in the internal volume of the refrigerator.
  • FIG. 7 is a plan view showing a modification of the invention.
  • metal plates 80 are arranged on both sides of the flat tube 61 of the refrigerating cooler 32 in the depth direction (front-rear direction) with a predetermined interval from the flat tube 61 . It is what I did.
  • a fin 73 is provided between the flat tube 61 and the metal plate 80 .
  • FIG. 8 is a front view showing a modification of the invention.
  • the coolant flows in from the upper part of the inlet side header 66 and the coolant flows out from the lower part of the outlet side header 67 .
  • the flow of the coolant becomes a counterflow that opposes the ventilation direction of the cold air flowing upward from below.
  • An inlet pipe 68 is connected to a side surface of the inlet header 66 facing the front of the refrigerator compartment 13 at a height corresponding to the upper region 63 .
  • an inlet-side pipe 68 is connected to the side of the inlet-side header 66 in a direction toward the flat tube 61 to which the outlet-side header 67 is connected.
  • the inlet-side pipe 68 is preferably connected substantially parallel to the depth direction (front-rear direction) of the refrigerating cooler 32 .
  • An outlet pipe 69 is connected to a side surface of the outlet header 67 on the rear side of the refrigerator compartment 13 at a height corresponding to the lower region 65 .
  • the outlet side pipe 69 is connected to the side surface of the outlet side header 67 in the direction toward the flat tube 61 to which the inlet side header 66 is connected.
  • the outlet pipe 69 is preferably connected substantially parallel to the inlet pipe 68 .
  • a space 90 is provided between the lower region 65 and the middle region 64 of the flat tube 61 . That is, a space is provided between the lowermost flat tube and the flat tube adjacent above.
  • the space 90 is formed by making the lower region 65 of the flat tube 61 shorter in height than the middle region 64 and the upper region 63 of the flat tube 61 . That is, the space 90 is formed by changing the height dimension of the flat pipe 61 connected to the outlet pipe 69 and the flat pipe 61 connected to the inlet pipe 68 . Thereby, an increase in the overall height dimension of the cooler 32 for refrigeration can be suppressed.
  • the height dimension may be different in each of the upper region 63, the middle region 64, and the lower region 65 of the flat tube 61.
  • FIG. An outlet pipe 69 is connected to a side surface of the outlet header 67 on the rear side of the refrigerator compartment 13 at a height corresponding to the space 90 .
  • Embodiment 1 has been described as an example of the technology disclosed in the present application.
  • the technology in the present disclosure is not limited to this, and can also be applied to embodiments with modifications, replacements, additions, omissions, and the like.
  • the present disclosure can be suitably used for a refrigerator capable of suppressing a decrease in internal volume.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

La présente divulgation concerne un réfrigérateur avec lequel il est possible d'empêcher une réduction du volume interne.　Ce réfrigérateur est pourvu d'un refroidisseur de réfrigération 32 sur le côté de surface arrière d'un compartiment de réfrigération 13 pour refroidir le compartiment de réfrigération 13, et d'un refroidisseur de congélation 41 sur le côté de surface arrière d'un compartiment de congélation 14 pour refroidir le compartiment de congélation 14, le refroidisseur de réfrigération 32 étant conçu à partir d'un refroidisseur de type à microcanaux dans lequel un fluide frigorigène s'écoule en série, et la direction de ventilation de l'air froid passant à travers le refroidisseur de réfrigération 32 étant une direction allant depuis au-dessous jusqu'à au-dessus du refroidisseur de réfrigération 32. Ainsi, il est possible d'empêcher une réduction du volume interne.
PCT/JP2022/037110 2021-10-13 2022-10-04 Réfrigérateur WO2023063165A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010276298A (ja) * 2009-05-29 2010-12-09 Sharp Corp 熱交換器
JP2016003831A (ja) * 2014-06-18 2016-01-12 シャープ株式会社 冷蔵庫
US20160290689A1 (en) * 2015-04-01 2016-10-06 Samsung Electronics Co., Ltd. Refrigerator and heat exchanger used therein
JP2018048799A (ja) * 2016-09-16 2018-03-29 東芝ライフスタイル株式会社 冷蔵庫
WO2020089162A1 (fr) * 2018-10-29 2020-05-07 BSH Hausgeräte GmbH Échangeur de chaleur à micro-canaux et appareil ménager de réfrigération
JP2021188836A (ja) * 2020-05-29 2021-12-13 パナソニックＩｐマネジメント株式会社 熱交換器および冷蔵庫

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010276298A (ja) * 2009-05-29 2010-12-09 Sharp Corp 熱交換器
JP2016003831A (ja) * 2014-06-18 2016-01-12 シャープ株式会社 冷蔵庫
US20160290689A1 (en) * 2015-04-01 2016-10-06 Samsung Electronics Co., Ltd. Refrigerator and heat exchanger used therein
JP2018048799A (ja) * 2016-09-16 2018-03-29 東芝ライフスタイル株式会社 冷蔵庫
WO2020089162A1 (fr) * 2018-10-29 2020-05-07 BSH Hausgeräte GmbH Échangeur de chaleur à micro-canaux et appareil ménager de réfrigération
JP2021188836A (ja) * 2020-05-29 2021-12-13 パナソニックＩｐマネジメント株式会社 熱交換器および冷蔵庫

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