WO2024029225A1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

Info

Publication number
WO2024029225A1
WO2024029225A1 PCT/JP2023/023304 JP2023023304W WO2024029225A1 WO 2024029225 A1 WO2024029225 A1 WO 2024029225A1 JP 2023023304 W JP2023023304 W JP 2023023304W WO 2024029225 A1 WO2024029225 A1 WO 2024029225A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
duct
refrigerator
partition plate
blower fan
Prior art date
Application number
PCT/JP2023/023304
Other languages
English (en)
Japanese (ja)
Inventor
豊志 上迫
サギッシュ サチャシーラン
アジャイ デブ プラパダティール
ベルサミー ゴパル
ディナカラン ベル
ジャナルデャナン プラモス カラティール
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.)
Filing date
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
Publication of WO2024029225A1 publication Critical patent/WO2024029225A1/fr

Links

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
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays

Definitions

  • the present disclosure relates to a refrigerator.
  • Patent Document 1 describes a refrigerator main body having an outer box and an inner box, a refrigerating compartment provided in the upper part of the refrigerator main body, a vegetable compartment provided in the lower part of the refrigerator main body, and the vegetable compartment and the refrigerating compartment.
  • a freezer compartment provided between the freezer compartment, a storage compartment back member provided on the back of the freezer compartment, a cooler cover provided at the rear of the storage compartment back member, and a cooler cover and the interior a cooler chamber provided between the box, a cooler provided within the cooler chamber, a defrosting heater provided below the cooler, and a defrost heater provided below the storage chamber back member;
  • a refrigerator is disclosed that includes a freezer compartment return port that communicates a freezer compartment with the cooler compartment.
  • the present disclosure provides a refrigerator having a defrost water drainage structure suitable for a blower fan.
  • the refrigerator according to the present disclosure includes a storage chamber, a cooling chamber in which an evaporator is installed on the back side of the storage chamber, and a partition section that partitions between the storage chamber and the cooling chamber; a blower fan that blows air into the storage chamber, the blower fan having a rotating blade and a fan casing that guides air flowing by rotation of the rotating blade, and the blower fan has a rotating blade and a fan casing that guides air flowing by rotation of the rotating blade, and is provided with a first partition plate, the fan casing is fixed to the back side of the first partition plate, and the first partition plate has the first partition plate at a position facing the lower surface of the fan casing. 1.
  • a drain groove is formed that extends to the end on the back side of the partition plate.
  • defrosting water generated in the blower fan can be easily drained to the back side of the first partition plate through the drain groove. Therefore, the refrigerator according to the present disclosure can efficiently drain defrost water generated in the blower fan.
  • FIG. 1 is a longitudinal cross-sectional view of a refrigerator in Embodiment 1.
  • FIG. 2 is a rear view showing the cooling chamber and duct in Embodiment 1.
  • FIG. 3 is a rear view of the blower fan portion of the partition in Embodiment 1, seen from the cooling chamber side.
  • FIG. 4 is a longitudinal cross-sectional view of the partition section in Embodiment 1.
  • FIG. 5 is an exploded perspective view of the partition section in Embodiment 1 seen from the freezer compartment side.
  • FIG. 6 is an exploded perspective view of the partition section in Embodiment 1 seen from the cooling chamber side.
  • FIG. 7 is a front view of the first partition plate of the partition section in Embodiment 1.
  • FIG. 1 is a longitudinal cross-sectional view of a refrigerator in Embodiment 1.
  • FIG. 2 is a rear view showing the cooling chamber and duct in Embodiment 1.
  • FIG. 3 is a rear view of the blower fan portion of the partition in Embodiment 1,
  • FIG. 8 is a perspective view of the molded heat insulating material of the partition section in Embodiment 1 seen from the front side.
  • FIG. 9 is a perspective view of the molded heat insulating material of the partition section in Embodiment 1 seen from the back.
  • FIG. 10 is a rear view of the molded heat insulating material of the partition section in Embodiment 1.
  • FIG. 11 is a front view of the partition section in Embodiment 1.
  • the blower fan in a refrigerator is generally an axial fan, and the fan casing is open on both sides in the axial direction.
  • the fan casing tends to have a structure that surrounds the blower fan. Therefore, when the blower fan is defrosted, the inventors discovered the problem that defrost water tends to accumulate inside the fan casing, and in order to solve this problem, the subject matter of the present disclosure is constituted. It's arrived. Therefore, the present disclosure provides a refrigerator that can efficiently drain defrost water generated within a fan casing of a blower fan.
  • FIG. 1 is a longitudinal sectional view of a refrigerator in Embodiment 1.
  • FIG. 2 is a rear view showing the cooling chamber and duct in the first embodiment.
  • FIG. 3 is a rear view of the blower fan portion of the partition in Embodiment 1, viewed from the cooling chamber side.
  • FIG. 4 is a longitudinal cross-sectional view of the partition portion in the first embodiment.
  • FIG. 5 is an exploded perspective view of the partition section in Embodiment 1, viewed from the freezer compartment side.
  • FIG. 6 is an exploded perspective view of the partition section in Embodiment 1, viewed from the cooling chamber side.
  • FIGS. 1 and 2 front, rear, left and right are used with reference to FIGS. 1 and 2. That is, the left and right sides of FIG. 1 will be described as corresponding to the front and rear of the refrigerator 10. Further, the left and right sides in FIG. 2 will be described as corresponding to the left and right sides of the refrigerator 10. Note that when referring to the front of the refrigerator 10, the term “front” may be used. Furthermore, when referring to the rear surface of the refrigerator 10, the term “back surface” may be used.
  • the refrigerator 10 includes a box-shaped casing 11 with an open front.
  • a refrigerator compartment 12 of about 2°C to 4°C is formed above the casing 11 as a second storage compartment, and a freezing compartment 13 of about -18°C as a first storage compartment is formed below the casing 11. is formed.
  • a low temperature chamber 60 with a temperature of about -5° C. to about 1° C. is formed as a third storage room.
  • a side-opening door 14 is provided at the front opening of the refrigerator compartment 12 so as to be openable and closable.
  • a side-opening door 61 is provided at the front opening of the freezer compartment 13 so as to be openable and closable, and multiple drawer cases 15, 16, and 17 for storing food are provided inside.
  • a drawer-type door 62 is provided at the front opening of the cold room 60 so as to be freely openable and closable, and a drawer case 63 is provided which interlocks with the opening and closing of the drawer-type door 62.
  • a cooling chamber 20 is provided on the back side of the freezing chamber 13 of the refrigerator 10.
  • a duct 21 that is located on the back side of the refrigerator compartment 12 and communicates in the vertical direction is connected above the cooling compartment 20 .
  • the duct 21 is provided with a refrigerating outlet (not shown) that communicates with the refrigerating chamber 12 .
  • a heat insulating wall 64 is provided between the freezing chamber 13 and the low temperature chamber 60.
  • a cold air passage 64a that communicates between the cooling chamber 20 and the duct 21 is formed in the heat insulating wall 64. Thereby, the configuration is such that the cold air generated in the cooling chamber 20 is introduced into the duct 21 via the cold air passage 64a.
  • the cold air passage 64a is provided with a twin damper 65 that adjusts the amount of cold air flowing into the refrigerator compartment 12 and the cold room 60.
  • the twin damper 65 includes a cold chamber damper 65a as a third storage chamber damper and a refrigerator chamber damper 65b as a first storage chamber damper, which are arranged adjacent to each other in the left and right width direction of the refrigerator 10. There is.
  • the cold room damper 65a and the cold room damper 65b are controlled according to the indoor temperatures of the cold room 60 and the cold room 12, respectively, and open and close the dampers independently. Adjust the amount of cold air.
  • the partition part 29 has a first partition plate 30 arranged on the front side of the cooling chamber 20. Furthermore, the partition section 29 includes a second partition plate 40 arranged on the back side of the freezer compartment 13. A cold air passage 29a is formed between the first partition plate 30 and the second partition plate 40. An inclined surface 35 is formed on the upper part of the first partition plate 30 and is inclined upwardly away from the second partition plate 40 . A blower fan 26 is attached to the back side of the inclined surface 35.
  • the blower fan 26 is a fan classified as one type of blower fan.
  • Axial fans also exist as blower fans.
  • an axial fan has a rotary blade attached to the center of a frame, sucks air from one end of the rotary blade in the direction of the rotation axis, and blows air out to the other end of the blade in the direction of the rotation axis.
  • Traditional refrigerators often use axial fans to circulate cold air.
  • the blower fan 26 includes rotating blades 27 and a fan casing 28 that covers the rotating blades 27, sucks air from the direction of the rotation axis of the rotating blades 27, and sucks air from the radial direction of the rotating blades 27 (in this embodiment, , corresponding to the upper part in FIG.
  • the fan casing 28 is formed into a casing shaped along an involute curve based on the rotation center C1 of the rotating blade 27, and is formed into a substantially spiral casing. Note that in the following description, the rotation center C1 may be referred to as the rotation axis direction C1.
  • the fan casing 28 is formed in a substantially spiral shape whose distance from the rotation center C1 gradually increases in the clockwise direction.
  • a cold air intake port 28a for taking in cold air from the cooling chamber 20 into the fan casing 28 is formed in a central portion of the fan casing 28 facing the rotation center C1 of the blower fan 26.
  • a second opening 28b is formed at the top of the fan casing 28 and communicates with the lower end of the cold air passage 64a.
  • the fan casing 28 is provided with a connecting portion 28c that expands from the top toward both left and right sides of the fan casing 28 and is connected to the cold air passage 64a via a second opening 28b.
  • the blower fan 26 tends to achieve higher static pressure than an axial fan of comparable size.
  • the number of rotating blades 27 of the blower fan 26 is generally greater than the number of rotating blades of an axial fan, this also makes it easier to obtain a high static pressure.
  • an evaporator 22 is installed below the blower fan 26 in the cooling chamber 20.
  • a compressor 23 is arranged at the rear upper part of the refrigerator compartment 12.
  • the compressor 23, a condenser (not shown), an expansion mechanism, and the evaporator 22 are connected by refrigerant piping, and constitute a refrigeration cycle. Then, by discharging the refrigerant from the compressor 23, the refrigerant is cooled to a predetermined temperature, and by exchanging heat with the evaporator 22 and the internal air of the cooling chamber 20, cold air is generated inside the cooling chamber 20. It is configured as follows.
  • the cold air in the cooling chamber 20 is sucked into the blower fan 26 from the cold air intake 28a of the fan casing 28, and is blown out from the outer periphery of the blower fan 26 into the inside of the fan casing 28.
  • the cold air blown into the fan casing 28 is guided along the inner circumferential surface of the fan casing 28 and sent to the duct 21 from the second opening 28b through the cold air passage 64a.
  • FIG. 7 is a front view of the first partition plate 30 of the partition section 29 in the first embodiment.
  • the first partition plate 30 of the partition section 29 has a substantially rectangular base section 31 .
  • a partition wall portion 31a that projects rearward is formed at the left end portion of the base portion 31.
  • the partition wall portion 31a extends in the vertical direction.
  • a partition wall 51a (see FIGS. 5 and 6) of a molded heat insulating material 50 is attached to the partition wall portion 31a.
  • a fan plate portion 32 that protrudes forward in a pedestal shape is formed at a position of the base portion 31 corresponding to the fan casing 28 .
  • the fan plate portion 32 is formed into a substantially rectangular shape with rounded corners when viewed from the front. In other words, the fan plate portion 32 has a substantially rounded rectangular shape when viewed from the front.
  • the fan plate portion 32 has a substantially rounded rectangular shape with the left and right sides longer than the top and bottom.
  • a planar cutout portion 32a is formed in the lower part of the fan plate portion 32.
  • a rearwardly recessed recess 33 is formed on the front surface (seat surface) of the fan plate portion 32 .
  • the recess 33 includes an inclined surface 35 corresponding to the bottom surface of the recess 33 and a peripheral wall 34 corresponding to the side surface of the recess 33 .
  • the surrounding wall 34 connects the periphery of the inclined surface 35 and the front surface of the fan plate section 32.
  • a circular fan mounting portion 36 is formed on the inclined surface 35.
  • a plurality of fan support parts 36a, 36b, and 36c are formed around the fan attachment part 36.
  • the fan support portions 36a to 36c are formed at approximately equal intervals in the circumferential direction. In this embodiment, the fan support parts 36a to 36c are formed at three locations: above the fan mounting part 36, at the lower left, and at the lower right.
  • the fan support portions 36a to 36c are formed as concave portions recessed forward from the back surface (see FIG. 6).
  • a mounting portion of a fan frame (not shown), which rotatably supports the rotary blade 27, is fixed to each of the fan support portions 36a to 36c with screws (not shown).
  • a rotating blade 27 is rotatably supported by a fan frame (not shown).
  • a substantially arc-shaped first opening 38 along the fan casing 28 is formed between each of the fan support portions 36a, 36b, and 36c.
  • the first opening 38 is formed in the inclined surface 35.
  • three first openings 38 are formed.
  • the three first openings 38 are defined as an upstream first opening 38a, a midstream first opening 38b, and a downstream first opening 38c, respectively, from the upstream side of the airflow by the blower fan 26 with the top as a reference. ing.
  • the opening areas of the first upstream opening 38a, the first midstream opening 38b, and the first downstream opening 38c are formed such that the opening width gradually increases from the upstream side to the downstream side of the airflow. ing. Further, the opening areas of the first upstream opening 38a, the first midstream opening 38b, and the first downstream opening 38c are formed to increase sequentially from the upstream side. Thereby, the air volume to the freezer compartment 13 can be ensured, and cooling can be performed efficiently. Note that, as long as the air volume can be ensured, a configuration may be adopted in which at least only the first opening 38a on the upstream side gradually becomes larger.
  • the rotation center C1 of the blower fan 26 is arranged to be inclined with respect to the front-rear direction (see FIG. 4). As a result, the blower fan 26 blows the cool air upward from the first opening 38, which facilitates the convection of the cool air.
  • a rectangular plate-shaped heat insulating material 39 is arranged below the fan plate section 32.
  • the heat insulating material 39 insulates the cold air transmitted from the cooling chamber 20 to the first partition plate 30. Thereby, it is possible to suppress the condensed water flowing down from the recess 33 from freezing.
  • a second partition plate 40 is arranged in front of the first partition plate 30.
  • a molded heat insulating material 50 made of, for example, expanded polystyrene is provided in close contact with the second partition plate 40 .
  • the second partition plate 40 and the molded heat insulating material 50 have shapes corresponding to each other.
  • FIG. 8 is a perspective view of the molded heat insulating material 50 of the partition portion 29 in the first embodiment, viewed from the front side.
  • FIG. 9 is a perspective view of the molded heat insulating material 50 of the partition portion 29 in the first embodiment, viewed from the back.
  • FIG. 10 is a rear view of the molded heat insulating material 50 of the partition portion 29 in the first embodiment. Note that in FIG. 10, the fan plate portion 32 is shown with grid-like hatching for convenience of explanation.
  • the molded heat insulating material 50 has a plate-shaped base portion 51 that is thick in the front-rear direction.
  • the base portion 51 is formed into a substantially rectangular shape when viewed from the front.
  • the base portion 51 is formed with a duct portion 52 that protrudes from the front surface of the base portion 51 toward the freezer compartment 13 side.
  • a duct space 52s (see FIG. 9) is formed in the duct portion 52 and is recessed toward the freezer compartment 13 side with respect to the rear surface of the base portion 51.
  • a cold air passage 29a (see FIG. 4) is formed by the duct space 52s surrounded by the duct portion 52 and the first partition plate 30.
  • the duct portion 52 has a middle duct portion 53 at a position corresponding to the fan plate portion 32 of the first partition plate 30.
  • the middle duct portion 53 includes a front surface 53a having a rounded rectangular shape, side surfaces 53b and 53c provided on the left and right sides of the front surface 53a and extending in the vertical direction, and a lower surface provided below the front surface 53a and extending in the left-right direction. 53d, and curved side surfaces 53e and 53f that connect between the side surfaces 53b and 53c and the lower surface 53d.
  • the curved side surfaces 53e and 53f curve inward in the left-right direction as they move downward.
  • a middle duct space (air path) 53s (see FIG. 9) forming a part of the duct space 52s is formed in the middle duct portion 53.
  • the middle duct space 53s has an inner peripheral shape corresponding to the outer peripheral shape of the fan plate portion 32, as shown in FIG. That is, the fan plate portion 32 can be fitted into the middle duct space 53s.
  • the middle duct space 53s is formed in the rotation axis direction C1 of the blower fan 26. That is, the middle duct space 53s is provided on an extension of the rotation center C1 of the blower fan 26.
  • Front openings 53a1, 53a2, and 53a3 penetrating in the thickness direction are formed in the front surface 53a of the middle duct portion 53.
  • a center front opening 53a1 extending in the left-right direction along the lower surface 53d is formed in the lower part of the front surface 53a.
  • the center front opening 53a1 curves upward along the curved side surfaces 53e and 53f at both left and right ends.
  • side front openings 53a2 and 53a3 extending along side surfaces 53b and 53c are formed at both left and right ends of the front surface 53a. Both left and right ends of the center front opening 53a1 are located below the side front openings 53a2 and 53a3.
  • Side openings 53b1 and 53c1 penetrating in the thickness direction are formed in side surfaces 53b and 53c of the middle duct portion 53.
  • side openings 53b1 and 53c1 that extend in the vertical direction along the side surfaces 53b and 53c are formed in the side surfaces 53b and 53c.
  • the lower ends of the side openings 53b1 and 53c1 extend to the curved side surfaces 53e and 53f, and are curved along the curved side surfaces 53e and 53f. Therefore, the side openings 53b1 and 53c1 open in the left-right direction (side surface direction) and in the downward direction.
  • Cold air is sent from the cold air passage 29a to the freezer compartment 13 through the front openings 53a1 to 53a3 and the side openings 53b1 and 53c1. That is, cold air is sent forward through the front openings 53a1 to 53a3. Further, cold air is sent from the cold air passage 29a to the left and right and downward through the side openings 53b1 and 53c1.
  • a top duct part 54 extending in the left-right direction is formed above the middle duct part 53.
  • the top duct part 54 is formed so that the amount of protrusion from the front surface of the base part 51 is smaller than that of the middle duct part 53.
  • the top duct portion 54 is formed to have a larger horizontal width than the middle duct portion 53.
  • a top duct space 54s forming a part of the duct space 52s is formed in the top duct portion 54.
  • the top duct space 54s extends left and right upward from the upper end on both the left and right sides of the middle duct space 53s.
  • top openings 54a and 54b are formed at both left and right end portions to penetrate in the thickness direction. Cool air is sent forward from the top duct space 54s through the top openings 54a and 54b.
  • a lower duct portion (second duct portion) 55 is formed below the middle duct portion 53 and extends downward from the left and right center of the middle duct portion 53 .
  • the lower duct portion 55 is formed so that the amount of protrusion from the front surface of the base portion 51 is smaller than that of the middle duct portion 53.
  • the lower duct portion 55 has a front surface 55a, side surfaces 55b and 55c provided on the left and right sides of the front surface 55a and extending in the vertical direction, and curved side surfaces 55e and 55f extending downward from the lower ends of the side surfaces 55b and 55c.
  • the curved side surfaces 55e and 55f curve outward in the left-right direction as they move downward.
  • a connecting duct space (connecting air path) 55s that forms a part of the duct space 52s is formed in the lower duct portion 55.
  • the connecting duct space 55s extends in the vertical direction.
  • the connecting duct space 55s has, at its lower end, a connecting portion 55s1 that curves outward in the left-right direction as it moves downward, corresponding to the curved side surfaces 55e and 55f.
  • the connecting duct space 55s is formed according to the lower surface 53d (see FIG. 8), and has a larger opening width than the top duct space 54s. Cold air easily flows into the connecting duct space 55s from the middle duct space 53s.
  • a bottom duct portion (third duct portion) 56 is formed below the lower duct portion 55 and extends from side to side.
  • the bottom duct portion 56 has a longer horizontal width than the middle duct portion 53, and a smaller horizontal width than the top duct portion 54.
  • the bottom duct portion 56 is formed to have the same protrusion amount from the front surface of the base portion 51 as the lower duct portion 55 .
  • Upper surfaces 56b and 56c of the bottom duct portion 56 are smoothly connected to side surfaces 55b and 55c of the lower duct portion 55 via curved side surfaces 55e and 55f.
  • a bottom duct space 56s forming a part of the duct space 52s is formed in the bottom duct portion 56.
  • the bottom duct space 56s communicates with the connecting duct space 55s at the left and right center portions.
  • the bottom duct space 56s extends in the left-right direction from the connection duct space 55s.
  • the bottom duct space 56s is smoothly curved and connected to the connecting duct space 55s by a connecting portion 55s1.
  • a bottom opening 56a extending in the left-right direction is formed in the bottom duct portion 56.
  • the bottom opening 56a is formed on the entire front surface of the bottom duct portion 56.
  • the bottom opening 56a has a larger horizontal width than the connecting duct space 55s.
  • the bottom opening 56a is longer than the center front opening 53a1 in the left and right directions.
  • the second partition plate 40 is arranged in front of the molded heat insulating material 50. As shown in FIG. The second partition plate 40 is formed in a cover shape corresponding to the molded heat insulating material 50. The second partition plate 40 has a shape corresponding to the shaped heat insulating material 50. The duct portion 42 of the second partition plate 40 is formed in the same shape as the duct portion 52 of the molded heat insulating material 50, except that the side openings 43b1, 43b2, 43c1, and 43c2 are divided into two vertically.
  • the second partition plate 40 includes the base portion 51 of the molded heat insulating material 50, the duct portion 52, the duct space 52s, the middle duct portion 53, the front surface 53a, the side surfaces 53b, 53c, the lower surface 53d, Curved side surfaces 53e, 53f, middle duct space 53s, front openings 53a1, 53a2, 53a3, top duct section 54, top duct space 54s, top openings 54a, 54b, lower duct section 55, front surface 55a, side surfaces 55b, 55c, curved side surface 55e , 55f, the connecting duct space 55s, the bottom duct part 56, the bottom duct space 56s, the bottom opening 56a, the top surfaces 56b and 56c, the base part 41, the duct part 42, the duct space 42s, the middle duct part (first duct part) 43, front surface 43a, side surfaces 43b, 43c, lower surface 43d, curved side surfaces 43e, 43f, middle duct space 43s
  • the base portion 51 of the molded heat insulating material 50 is attached to the base portion 41 of the second partition plate 40 so as to be in close contact with the base portion 41 of the second partition plate 40.
  • the duct portion 52 of the molded heat insulating material 50 is fitted into the duct space 42s of the second partition plate 40.
  • the duct space 52s of the molded heat insulating material 50 is divided into the openings 53a1 to 53a3, 53b1, 53c1, 54a, 54b, 56a of the molded heat insulating material 50 and the openings 43a1 to 43a3, 43b1, 43b2, 43c1 of the second partition plate 40, It communicates with the freezer compartment 13 through 43c2, 44a, 44b, and 46a.
  • the base portion 31 of the first partition plate 30 is attached to the base portion 51 of the molded heat insulating material 50 so as to be in close contact therewith.
  • the cold air passage 29a is formed by the duct space 52s surrounded by the inner surface of the duct portion 52 and the front surface of the first partition plate 30.
  • the fan plate portion 32 of the first partition plate 30 enters the middle duct space 53s so as to raise the bottom of the middle duct space 53s. Since the blower fan 26 can be placed close to the freezing compartment 13 by the fan plate portion 32, air can be blown in the front direction into the freezing compartment 13 with less air resistance.
  • the fan plate portion 32 is located behind the side openings 53b1, 53c1, and 43b1 to 43c2. Therefore, the fan plate portion 32 does not reduce the opening area of the side openings 53b1, 53c1, 43b1 to 43c2.
  • the front surface of the fan plate portion 32 is shaped like a pedestal and is formed wide. Therefore, when the width of the front surface is small, for example, compared to when the front surface has an elongated rib shape, the cold air blown from the recess 33 is less likely to meander when trying to cross the fan plate section 32 in the radial direction. ing. Therefore, the pressure loss of cold air is easily suppressed.
  • a shutter 70 is arranged in the middle duct space 53s.
  • the shutter 70 has a teardrop shape when viewed from the front.
  • the shutter 70 is fixed to a shaft 71 that extends forward.
  • the shaft 71 passes through the molded heat insulating material 50 and the second partition plate 40 and is rotatably supported.
  • An operating knob 72 is fixed to the front end of the shaft 71. By rotating the operation knob 72, the shutter 70 is rotated.
  • FIG. 11 is a front view of the partition portion 29 in the first embodiment.
  • the center front opening 43a1 and the first midstream opening 38b overlap. That is, the lower end of the midstream side first opening 38b is exposed from the center front opening 43a1.
  • the right side front opening 43a3 and the downstream first opening 38c overlap. That is, the first downstream opening 38c is exposed from the right side front opening 43a2.
  • the left side front opening 43a2 and the first upstream opening 38a do not substantially overlap.
  • the shutter 70 rotates around the shaft 71, and overlaps the front openings 43a1 and 43a2 and the side openings 43b1 and 43b2 in a front view and a side view.
  • the opening areas of the front openings 43a1, 43a2 and the side openings 43b1, 43b2 it is possible to change the amount of cold air flowing out from the middle duct space 53s.
  • the heater 25 is, for example, an electric heating device, and melts frost attached to the evaporator 22 and the blower fan 26 by heating the air inside the cooling chamber 20 .
  • a defrosting water receiving tray 25a is provided below the heater 25 so as to cover the bottom surface of the cooling chamber 20. The defrosting water tray 25a receives the defrosting water dripping from the evaporator 22 and the defrosting water flowing along the back side of the first partition plate 30.
  • the lower end 28e of the fan casing 28 is located near the lower end of the inclined surface 35 and is located further forward than the base portion 31.
  • the first partition plate 30 has a drainage groove 34b formed below the lower end 28e of the fan casing 28 so as to vertically overlap the lower end 28e.
  • the drain groove 34b for draining defrosting water is formed in the first partition plate 30 at a position vertically facing the lower surface portion 28d of the fan casing 28.
  • the drain groove 34b is a groove extending in the front-rear direction, and is formed by recessing the bottom surfaces of the peripheral wall 34 and the second peripheral wall 34a downward.
  • the second surrounding wall 34a is a portion of the first partition plate 30 that connects the base portion 31 with the lower end of the inclined surface 35 located forward of the back surface of the base portion 31 (see FIG. 6).
  • the drain groove 34b is a groove that extends toward the rear surface of the base portion 31, that is, to the end of the rear side of the first partition plate 30, and opens toward the rear side. It is formed by sloping downward towards.
  • a step portion 34d rising upward from the bottom surface 34c is formed at the front end of the drain groove 34b.
  • a stepped portion 34d rising upward from the bottom surface 34c is formed at the end of the drain groove 34b on the freezer compartment 13 side. The defrosting water flowing through the drain groove 34b is drained by flowing down the back surface of the first partition plate 30.
  • FIGS. 8 to 11 Drainage structure of defrosting water from the duct
  • bottom surfaces 56d and 56e of the bottom duct portion 56 are inclined downward toward the center of the bottom duct portion 56 in the left-right direction.
  • a center portion 56f corresponding to the center portion in the left-right direction of the bottom surfaces 56d and 56e of the bottom duct portion 56 is recessed downward.
  • a drainage hole 56g for draining defrosting water generated inside the duct portion 52 is opened at the rear of the central portion 56f.
  • the drainage hole 56g is a hole formed in the base portion 51 of the molded heat insulating material 50 and has a circular cross section that extends vertically.
  • the drain hole 56g passes through the molded heat insulating material 50 below the center portion 56f of the bottom surfaces 56d and 56e of the bottom duct portion 56, and opens above the defrost water receiving tray 25a in the cooling chamber 20 (see FIG. 4). That is, the drain hole 56g communicates the bottom duct space 56s and the cooling chamber 20. Furthermore, a drainage hole 46g corresponding to the drainage hole 56g of the molded heat insulating material 50 is formed at the lower end of the second partition plate 40.
  • the refrigerator 10 performs a defrosting operation at predetermined intervals in order to defrost the frost attached to the evaporator 22, the blower fan 26, and the like.
  • the heater 25 is operated, thereby warming the air in the cooling chamber 20 and turning it into warm air.
  • the warm air rises while defrosting the cooling chamber 20.
  • the frost adhering to the evaporator 22 melts and becomes defrosting water.
  • the defrosting water generated in the evaporator 22 is dripped by the action of gravity and guided to the defrosting water receiving tray 25a.
  • the defrosting water dripped into the drain 34b flows toward the rear along the bottom surface 34c that slopes downward. After the defrosting water reaches the rear end of the drain groove 34b, it flows out from the open rear end of the drain groove 34b and flows along the back surface of the base portion 31 of the first partition plate 30. Thereafter, the defrosting water is guided to the defrosting water receiving tray 25a by the action of gravity.
  • the defrosting water is pushed into the center portion 56f by the air flowing inside the bottom duct portion 56 along the bottom surfaces 56d and 56e. Since the central portion 56f is recessed downward, the defrosting water collects at the central portion 56f and flows into the drainage hole 56g provided at the rear of the central portion 56f.
  • the defrosting water that has flowed into the drain hole 56g flows downward through the drain hole 56g and flows into the cooling chamber 20 from the drain hole 46g. At this time, the defrosting water inside the drain hole 56g is pushed downward by the air flowing downward within the connecting duct space 55s and the bottom duct space 56s. The defrosting water that has flowed into the cooling chamber 20 through the drain holes 56g and 46g flows downward under the action of gravity and is guided to the defrosting water receiving tray 25a.
  • the refrigerator 10 includes the freezing compartment 13 as an example of a storage compartment, and the cooling compartment 20 in which the evaporator 22 is installed is formed on the back side of the freezing compartment 13. , a partition part 29 that partitions between the freezing compartment 13 and the cooling compartment 20, and a blower fan 26 that blows air from the cooling compartment 20 to the freezing compartment 13.
  • the blower fan 26 includes a rotating blade 27 and a rotating blade.
  • a first partition plate 30 is installed on the back side of the partition part 29, and the fan casing 28 is installed on the back side of the first partition plate 30.
  • a drain groove 34b is formed in the first partition plate 30 at a position facing the lower surface portion 28d of the fan casing 28, and extends to the rear end of the first partition plate 30.
  • a step portion 34d rising upward may be formed at the end of the drain groove 34b on the freezer compartment 13 side.
  • the lower surface portion 28d of the fan casing 28 may be sloped downward toward the freezer compartment 13, and the drain groove 34b may be sloped downward toward the back side.
  • Embodiments 1 and 2 have been described as examples of the technology disclosed in this application. However, the technology in the present disclosure is not limited to this, and can also be applied to embodiments in which changes, replacements, additions, omissions, etc. are made. Therefore, other embodiments will be illustrated below.
  • the storage compartment may be the refrigerator compartment 12, or the refrigerator may have only one of the refrigerator compartment 12 and the freezer compartment 13.
  • the storage room may be a cold room 60.
  • the rotation center C1 of the blower fan 26 is arranged at an angle, but the invention is not limited to this.
  • the rotation center C1 may be arranged so as to be substantially horizontal. Good too.
  • a storage room is provided, and a cooling room in which an evaporator is installed is formed on the back side of the storage room, and a partition part that partitions between the storage room and the cooling room, and an air in the cooling room is provided.
  • a blower fan that blows air into the storage chamber, the blower fan has a rotating blade, and a fan casing that guides air flowing by rotation of the rotating blade, and on the back side of the partition part.
  • a first partition plate is installed, the fan casing is fixed to the back side of the first partition plate, and the first partition plate has the first partition plate at a position facing the lower surface of the fan casing.
  • a refrigerator characterized in that a drain groove is formed that extends to the end of the back side of the plate. With this configuration, defrost water generated in the blower fan is easily drained to the back side of the first partition plate through the drainage groove. Therefore, defrost water generated in the blower fan can be efficiently drained.
  • the present disclosure can be used for refrigerators. Specifically, it can be suitably used in a refrigerator that blows cold air with a blower fan.
  • Refrigerator 13 Freezer room (storage room) 20 Cooling room 22 Evaporator 26 Blower fan 27 Rotating blade 28 Fan casing 28d Lower surface portion 29 Partition portion 30 First partition plate 34b Drain groove 34d Step portion

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)

Abstract

L'invention concerne un réfrigérateur ayant une structure de drainage d'eau de dégivrage appropriée pour un ventilateur soufflant.　Ce réfrigérateur est pourvu d'un compartiment de stockage, dans lequel : une chambre de refroidissement, dans laquelle un évaporateur est installé, est formée sur un côté de surface arrière du compartiment de stockage ; le réfrigérateur est pourvu d'une partie de séparation, qui sépare le compartiment de stockage et la chambre de refroidissement, et d'un ventilateur soufflant, pour souffler de l'air dans la chambre de refroidissement dans le compartiment de stockage ; le ventilateur soufflant comprend une pale rotative, ainsi qu'un carter de ventilateur pour guider l'air qui s'écoule au moyen de la rotation de la pale rotative ; une première plaque de séparation est installée sur un côté de surface arrière de la partie de séparation ; le carter de ventilateur est fixé à un côté de surface arrière de la première plaque de séparation ; et un canal de drainage, qui s'étend jusqu'à une partie d'extrémité sur le côté de surface arrière de la première plaque de séparation, est formé dans une position dans la première plaque de séparation faisant face à une partie de surface inférieure du carter de ventilateur.
PCT/JP2023/023304 2022-08-02 2023-06-23 Réfrigérateur WO2024029225A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-123059 2022-08-02
JP2022123059A JP2024020694A (ja) 2022-08-02 2022-08-02 冷蔵庫

Publications (1)

Publication Number Publication Date
WO2024029225A1 true WO2024029225A1 (fr) 2024-02-08

Family

ID=89848836

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/023304 WO2024029225A1 (fr) 2022-08-02 2023-06-23 Réfrigérateur

Country Status (2)

Country Link
JP (1) JP2024020694A (fr)
WO (1) WO2024029225A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100850959B1 (ko) * 2007-04-04 2008-08-12 엘지전자 주식회사 송풍장치 및 송풍장치가 구비된 냉장고
JP2009063244A (ja) * 2007-09-07 2009-03-26 Hitachi Appliances Inc 冷蔵庫
JP2019078495A (ja) * 2017-10-26 2019-05-23 日立アプライアンス株式会社 冷蔵庫
WO2019111364A1 (fr) * 2017-12-06 2019-06-13 三菱電機株式会社 Réfrigérateur
JP2020200779A (ja) * 2019-06-07 2020-12-17 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 送風装置及び冷蔵庫

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100850959B1 (ko) * 2007-04-04 2008-08-12 엘지전자 주식회사 송풍장치 및 송풍장치가 구비된 냉장고
JP2009063244A (ja) * 2007-09-07 2009-03-26 Hitachi Appliances Inc 冷蔵庫
JP2019078495A (ja) * 2017-10-26 2019-05-23 日立アプライアンス株式会社 冷蔵庫
WO2019111364A1 (fr) * 2017-12-06 2019-06-13 三菱電機株式会社 Réfrigérateur
JP2020200779A (ja) * 2019-06-07 2020-12-17 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． 送風装置及び冷蔵庫

Also Published As

Publication number Publication date
JP2024020694A (ja) 2024-02-15

Similar Documents

Publication Publication Date Title
US7866182B2 (en) Refrigerator
US10634418B2 (en) Refrigerator
JP6788893B2 (ja) 冷蔵庫
JP5313857B2 (ja) 冷蔵庫
CN109196290B (zh) 冷藏库
WO2024029225A1 (fr) Réfrigérateur
WO2021131150A1 (fr) Réfrigérateur
JP2017215117A (ja) 冷蔵庫
WO2024029238A1 (fr) Réfrigérateur
WO2024029208A1 (fr) Réfrigérateur
JP2017215119A (ja) 冷蔵庫
JP6876901B2 (ja) ダンパ装置およびそれを用いた冷蔵庫
JP7433520B2 (ja) 冷蔵庫
JP3159360U (ja) シャッター、冷却機および空調機の室外機
JP2005016903A (ja) 冷蔵庫
WO2023068047A1 (fr) Réfrigérateur
WO2020238615A1 (fr) Dispositif de protection et réfrigérateur le comprenant
WO2023067948A1 (fr) Réfrigérateur
WO2020238616A1 (fr) Dispositif de protection et réfrigérateur le comprenant
US20230243573A1 (en) Refrigerator
JP6865349B2 (ja) 冷蔵庫
US20230272962A1 (en) Refrigerator
JP2019132503A (ja) 冷蔵庫
JP2001280794A (ja) 冷蔵庫
JP2017215120A (ja) 冷蔵庫

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23849785

Country of ref document: EP

Kind code of ref document: A1