WO2019111321A1 - Dispositif de fabrication de glace - Google Patents

Dispositif de fabrication de glace Download PDF

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Publication number
WO2019111321A1
WO2019111321A1 PCT/JP2017/043647 JP2017043647W WO2019111321A1 WO 2019111321 A1 WO2019111321 A1 WO 2019111321A1 JP 2017043647 W JP2017043647 W JP 2017043647W WO 2019111321 A1 WO2019111321 A1 WO 2019111321A1
Authority
WO
WIPO (PCT)
Prior art keywords
ice
cold air
ice making
tray
outlet
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2017/043647
Other languages
English (en)
Japanese (ja)
Inventor
和貴 鈴木
誠 岡部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2019557899A priority Critical patent/JP6937843B2/ja
Priority to PCT/JP2017/043647 priority patent/WO2019111321A1/fr
Priority to TW107136955A priority patent/TWI682136B/zh
Priority to CN201811382760.8A priority patent/CN109974361B/zh
Priority to CN201821919159.3U priority patent/CN209310321U/zh
Publication of WO2019111321A1 publication Critical patent/WO2019111321A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • F25C1/10—Producing ice by using rotating or otherwise moving moulds
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C1/00—Producing ice
    • F25C1/22—Construction of moulds; Filling devices for moulds
    • F25C1/24—Construction of moulds; Filling devices for moulds for refrigerators, e.g. freezing trays
    • 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
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate

Definitions

  • the present invention relates to an ice making apparatus provided in a refrigerator, and more particularly to a structure in which cold air circulates.
  • the refrigerator provided with the ice making apparatus which ice-makes automatically is known.
  • the refrigerator includes an ice making chamber, and an ice tray, which is rotatably installed by a drive unit, is installed inside.
  • Cold air is supplied to the ice making chamber from a cooler, and ice is made by freezing water on the ice making tray with the cold air.
  • the ice made on the ice tray is dropped and stored in an ice storage box disposed below the ice tray by rotating the ice tray with a drive unit.
  • the cold air duct for guiding the cold air to the ice tray is constituted by the upper cold air duct and the side cold air duct.
  • the upper side cold air duct and the side cold air duct are installed avoiding the drive unit.
  • the upper side cold air duct is disposed above the ice tray, and supplies cold air from above the ice tray through the cold air introduction hole.
  • the side cold air duct supplies cold air onto the ice making tray from a cold air introducing hole provided on the side of the ice making tray.
  • the cold air heated by the water on the ice tray is discharged from the side opposite to the cold air introduction hole on the side.
  • the object is to uniformly make ice at all locations on the ice tray. Therefore, by providing cold air introduction holes corresponding to each section of the water storage section partitioned on the ice tray in the upper side cold air duct, cold air can be evenly distributed, and stable heat exchange can be achieved without reaching the position on the ice tray. Is configured as. However, if the upper side cold air duct provided with a cold air introduction hole is disposed above the ice tray, and if a rotationally driven space for separating the ice from the ice tray is secured, the dimension in the height direction of the entire ice making apparatus is There was a problem of getting bigger.
  • the cold air supplied from the upper side cold air duct through the cold air introduction hole to the ice tray is blown out vertically, after colliding with the water surface on the ice tray, it circulates vertically between the upper side cold air duct and the water surface Do.
  • the circulating cold air contains water, and there is a problem that the water adheres to a wall surface facing the space between the upper side cold air duct and the water surface and the like to generate frost.
  • frost formation in the ice making chamber occurs excessively, the rotation operation of the ice making tray is hindered, and ice separation from the ice making tray can not be performed, which causes a problem that ice making can not be performed.
  • the present invention has been made to solve the problems as described above, and it is an ice-making device of a refrigerator which can uniformly distribute cold air on an ice-making tray and uniformly perform ice-making while suppressing the size in the height direction. Intended to be provided.
  • An ice making apparatus is an ice making apparatus installed in a refrigerator, wherein the ice making room has an ice making tray disposed therein with its longitudinal direction directed from the front side to the back side of the refrigerator;
  • the ice making chamber is disposed above the back side of the ice making chamber and opens in a direction intersecting the direction in which the upper blowing outlet blows cold air into the space above the ice making tray and the upper blowing outlet is open.
  • a side outlet for blowing the cold air into the upper space of the plate, and the side outlet is provided below the upper outlet.
  • the ice making apparatus since cold air can be supplied to the water on the ice making tray on the front side of the ice making chamber without installing a duct above the ice making tray, the dimension of the ice making apparatus in the height direction is suppressed. Space saving can be achieved.
  • the upper outlet provided on the back side of the ice tray, it is possible to supply the cold air from the upper outlet to the water on the ice tray located on the front side of the ice making chamber.
  • the side air outlet is provided below the upper air outlet, the cold air blown out from the upper air outlet does not collide with the cold air blown out from the side air outlet, and the air outlet is located on the front side of the ice making chamber It is easy to supply cold air from the upper outlet to the water on the ice tray.
  • stagnation of cold air containing water in the space above the ice making tray can be suppressed, and frost formation can be suppressed.
  • the cold air from the upper outlet does not sharply bend to the ice tray side after leaving the upper outlet, and flows along the ceiling surface of the ice making chamber on the ice making tray on the back side of the ice making chamber. Therefore, since the pressure loss due to the bend flow does not occur, the flow rate does not decrease, and the supply amount of the cold air to the water on the ice making tray on the front side of the ice making chamber increases. In addition, since the cold air from the side outlet can be supplied on the ice tray on the back side of the ice making chamber, the cold air can be supplied over the entire ice tray, and the water on the ice tray is uniformly distributed. I can make ice.
  • FIG. 1 is a perspective view of an ice making device according to Embodiment 1 of the present invention. It is a top view of the ice making apparatus of FIG. It is sectional drawing of the ice making apparatus of FIG. It is the schematic diagram seen from the upper direction of the ice-making tray of the ice-making apparatus which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the structure of the ice making apparatus of a comparative example.
  • FIG. 1 is the schematic diagram seen from the front of the refrigerator 1 which concerns on Embodiment 1 of this invention.
  • the door which closes each storage chamber of the refrigerator 1 is abbreviate
  • the refrigerator 1 is provided with a refrigerator compartment 100 at the top.
  • the switching room 200 can be switched to each temperature zone such as a freezing temperature zone (-18 ° C), refrigeration (3 ° C), chilled (0 ° C), and soft freezing (-7 ° C) Equipped with
  • the ice making room 300 is disposed in parallel with the switching room 200.
  • a freezing room 400 is disposed below the switching room 200 and the ice making room 300, and a vegetable room 500 is disposed below the freezing room 400.
  • the switching room 200, the ice making room 300, the freezing room 400, and the vegetable room 500 are provided with a drawer type door.
  • the form of the refrigerator 1 is not limited to what was shown by FIG. 1, For example, the switching chamber 200 may not be.
  • FIG. 2 is a schematic diagram which shows the cross-section of the refrigerator 1 which concerns on Embodiment 1 of this invention.
  • FIG. 2 shows an AA cross section of FIG.
  • the refrigerator 1 is provided with a compressor 2 on the back side of the vegetable room 500, and is provided with a blower fan 4 for blowing cold air cooled by the cooler 3 and the cooler 3 to each room in the refrigerator on the back side of the freezing room 400. .
  • the cold air cooled by the cooler 3 is blown to the freezing chamber 400, the switching chamber 200, the ice making chamber 300, and the refrigerating chamber 100 by the air passage 5 for introducing it into the respective storage chambers of the refrigerator 1, and each storing chamber Cool down.
  • Vegetable room 500 is cooled by circulating return cold air of cold storage room 100 from return air course (not shown) for cold storage rooms. Then, it is returned to the cooler 3 from the return flow path (not shown) for the vegetable room.
  • the temperature of each storage chamber is detected by a thermistor (not shown) installed in each storage chamber, and the degree of opening and compression of a damper (not shown) installed in the air passage 5 so as to reach a preset temperature. It is controlled by adjusting the operating condition of the machine 2 and the air flow rate of the air blowing fan 4.
  • each storage chamber is schematically represented. Arrows displayed in FIG. 2 indicate the flow of cold air.
  • Cold air cooled by the cooler 3 is fed into the ice making chamber 300 by the blower fan 4.
  • the cold air is sent into the ice making chamber 300 via the cold air outlet 6.
  • An ice tray 11 rotatably provided by a drive unit 12 is disposed in the ice making chamber 300.
  • the cold air from the cold air outlet 6 is supplied to the upper space 302 above the ice tray 11 and exchanges heat with the water stored on the ice tray 11 to make ice.
  • the upper side and the side of the ice tray 11 are surrounded by the ice machine cover 18 so that cold air is supplied to the upper space 302 of the ice tray 11 between the ice tray 11 and the ice machine cover 18 so as not to dissipate. ing.
  • FIG. 3 is a perspective view of the ice making device 10 according to the first embodiment of the present invention.
  • FIG. 4 is a top view of the ice making device 10 of FIG.
  • FIG. 5 is a cross-sectional view of the ice making device 10 of FIG. FIG. 5 shows a cross section BB of FIG.
  • the ice making device 10 is disposed in the ice making chamber 300.
  • the ice making apparatus 10 is provided with an ice storage box 301 below the ice making tray 11, but is omitted in FIGS.
  • An upper portion of the ice tray 11 is covered with an ice machine cover 18, and an upper space 302 in which cold air circulates is formed between the ice tray 11 and the ice machine cover 18.
  • the ice tray 11 is rotatably supported by a drive unit 12 disposed on the back side of the ice making chamber 300.
  • the driving unit 12 is a device for twisting the ice tray 11 and dropping the ice formed on the ice tray 11 into the ice storage box 301.
  • an ice detecting lever 19 for detecting the amount of ice accumulated in the ice storage box 301 is provided below the ice making tray 11.
  • the ice detecting lever 19 contacts the ice in the ice storage box 301, and the ice storage box 301 is flooded with ice by preventing the ice tray 11 from entering the ice separation operation when it does not go below a predetermined position. To prevent.
  • an upper outlet 13 is provided above the ice tray 11 in the ice making chamber 300 and on the back side of the ice making chamber 300 relative to the ice tray 11.
  • the upper air outlet 13 blows cold air passing through the upper duct 13 a from the cold air outlet 6 located on the back side of the ice making chamber 300, that is, the back side of the refrigerator 1 into the upper space 302 of the ice tray 11.
  • the upper duct 13 a needs to pass through the drive unit 12 provided adjacent to the back side of the ice making tray 11 in the ice making chamber 300. Accordingly, the upper duct 13 a is provided adjacent to the upper side of the drive unit 12, and the upper outlet 13 is disposed adjacent to the upper side of the drive unit 12.
  • the driving unit 12 is provided adjacent to the back side of the ice making tray 11 in the ice making chamber 300.
  • the drive unit 12 has a mechanism for driving the ice tray 11 inside. Therefore, the upper portion of the drive unit 12 is provided to project above the water storage unit 11 a of the ice tray 11.
  • the upper outlet 13 is opened above the upper portion of the drive unit 12.
  • a ceiling surface 18 a is provided above the water reservoir 11 a of the ice tray 11.
  • the ceiling surface 18 a is a lower surface of the ice making machine cover 18, and in particular, a portion located above the ice making tray 11 and facing the water storage portion 11 a of the ice making tray 11.
  • the ceiling surface 18 a extends from the upper end 13 b of the upper outlet 13 toward the near side of the ice making chamber 300.
  • the ceiling surface 18 a is horizontal from the upper end 13 b of the upper outlet 13 to the upper side of the rear end 11 c of the water reservoir 11 a of the ice tray 11, and is lowered toward the front side of the ice chamber 300 from there.
  • the slope 18b is provided to be as follows.
  • the ceiling surface 18 a is provided with a slope portion 18 b closer to the ice making plate 11 as it goes to the front side of the ice making room 300 in the region on the back side of the ice making room 300.
  • the ceiling surface 18a is a part of icemaker cover 18, it is not limited to this form.
  • the ceiling surface 18 may be configured by other structures inside the ice making chamber 300.
  • the partition wall 150 which divides the icemaker 300 and the refrigerator compartment 100 may be comprised.
  • the sloped portion 18 b of the ceiling surface 18 a is provided in a range from the central portion in the longitudinal direction of the ice tray 11 to the back side.
  • the sloped end 18 c on the side closer to the ice tray 11 of the sloped portion 18 b is located on the upper side slightly behind the longitudinal center of the ice tray 11.
  • the ceiling surface 18 a is substantially parallel to the water surface 11 b of the water storage portion 11 a of the ice tray 11 on the front side of the ice making chamber 300 from the slope end 18 c.
  • the ceiling surface 18 a is formed so as not to interfere with the rotating trajectory of the ice tray 11 when the ice is dropped into the ice storage box 301. In FIG. 5, the ceiling surface 18 a is located above the upper limit line 15 of the rotation trajectory of the ice tray 11.
  • FIG. 6 is a schematic view of the ice making device 10 according to Embodiment 1 of the present invention as viewed from above the ice making tray 11.
  • 6 is a schematic view of a cross section taken along the line CC in FIG.
  • a side outlet 14 is provided on the side of the ice tray 11.
  • the side outlet 14 is provided on a wall of the ice making machine cover 18 on the side of the ice tray 11 and opens in a direction intersecting with the direction in which the upper outlet 13 is opened.
  • the side air outlet 14 branches from the cold air outlet 6 located on the back side of the refrigerator 1 and blows the cold air having passed through the side duct 14 a into the upper space 302 of the ice tray 11.
  • the side ducts 14a are also disposed apart from the drive portion 12.
  • the portion shown by a dashed rectangle in FIG. 5 indicates the position of the side outlet 14.
  • the side outlet 14 blows cold air onto the water storage portion 11 a of the portion near the drive portion 12 of the ice tray 11.
  • the side air outlet 14 is located below the lower end 13 c of the upper air outlet 13. That is, the side outlets 14 are disposed toward the area of the corner formed by the upper portion of the drive portion and the water storage portion 11 a of the ice tray 11 in the upper space 302 of the ice tray 11.
  • the upper space 302 of the ice tray 11 is shown in FIG. 5 surrounded by the upper end of the water storage section 11a, the drive section upper portion 12a, and a virtual surface horizontally extending the lower end 13c of the upper outlet 13.
  • the side outlets 14 open towards the inner area of the U-shape. Further, the side air outlet 14 is located on the back side of the ice making chamber 300 than the sloped end 18c of the sloped portion 18b provided on the ceiling surface 18a. That is, the side outlets 14 are opened toward the upper space 302 of the ice tray 11 below the sloped portion 18 b of the ceiling surface 18 a of the ice making chamber 300.
  • the cold air blown out from the upper outlet 13 flows along the sloped portion 18b of the ice making machine cover 18 on the extension in the blowing direction.
  • the slope 18b has a slope of 10 degrees or less with respect to the blowing direction, so the pressure loss of the flow of cold air can be suppressed.
  • Cold air blown out from the upper blowout port 13 and flowing along the ceiling surface 18 a is less likely to be separated from the ceiling surface 18 a due to the Coanda effect, and easily reaches the region on the near side of the ice making chamber 300.
  • the side air outlet 14 is disposed below the lower end 13 c of the upper air outlet 13 and on the front side of the driving unit 12 in the ice making chamber 300. Therefore, the cold air blown out from the side air outlet 14 and the cold air blown out from the upper air outlet 13 do not collide near the upper air outlet 13 or near the side air outlet 14. Therefore, the cold air blown out from the upper outlet 13 is likely to reach onto the water reservoir 11 a on the ice tray 11 located on the front side of the ice making chamber 300.
  • the cool air blown out from the side blow-off port 14 reaches the water reservoir 11a on the ice tray 11 near the drive unit 12 without being blocked by the cold air blown out from the upper blow-out port 13.
  • FIG. 7 is a schematic view showing the structure of the ice making device 110 of the comparative example.
  • FIG. 8 is an explanatory view of a structure in a cross section perpendicular to the longitudinal direction of the ice tray 11 including the upper outlet 113 and the side outlet 114 of the ice making apparatus 110 of FIG. 7.
  • the ice making apparatus 110 of the comparative example is also provided in the refrigerator 1 in the same manner as the ice making apparatus 10 according to the first embodiment.
  • an upper duct 113 a is provided above the ice tray 11, and a side duct 114 a is provided on the side of the ice tray 11.
  • the cold air blown out from the cold air outlet 6 branches and flows into the upper duct 113a and the side duct 114a.
  • the cold air which has flowed into the upper duct 113a is blown out from the plurality of upper outlets 113 provided on the lower surface of the upper duct 113a.
  • the upper outlet 113 is disposed above the water reservoir 11 a of the ice tray 11 located on the front side of the ice making chamber 300.
  • the cold air flowing from the cold air outlet 6 into the side duct 114a is blown out from the side outlets 114 arranged in plural on the side of the side duct 114a where the ice tray 11 is located.
  • the side outlet 114 is disposed on the side of the water reservoir 11 a of the ice tray 11 located on the back side of the ice making chamber 300.
  • the cold air blown out from the upper outlet 113 vertically collides with the surface of the water accumulated in the water reservoir 11 a on the ice tray 11. Therefore, the cold air that hits the water surface is bent horizontally and then rises upward. That is, in the upper space 302 of the ice tray 11 located between the ice tray 11 and the lower surface of the upper duct 13a, cold air containing water circulates in the vertical direction. Further, the cold air blown out from the side air outlet 114 joins the circulation of the cold air blown out from the upper air outlet 113 and circulates in the upper space 302 of the ice tray 11.
  • frost adheres to a wall surface facing the upper space 302 and the like.
  • the frost inhibits the rotation of the ice tray 11 by the drive unit 12 and causes a defect such as no ice making.
  • the cold air from the upper air outlet 113 and the cold air from the side air outlet 114 collide, the cold air from the upper air outlet 113 is caused to flow laterally by the flow of the cold air from the side air outlet 114. Therefore, the cold air does not spread on the ice tray 11 on average, and the ice making of each part of the ice tray 11 varies.
  • the cold air blown out from the upper blowout 13 passes above the side blowout 14 along the ceiling surface 18a, There is no collision with cold air blown out from the blowout port 14. Therefore, the cold air blown out from the upper outlet 13 reliably reaches the water reservoir 11 a on the ice tray 11 located on the front side of the ice making chamber 300. In addition, the cold air blown out from the side air outlet 14 does not flow into the cold air from the upper air outlet 13 and reaches the water storage portion 11 a on the driving portion 12 side of the ice tray 11.
  • FIG. 9 is a cross-sectional view perpendicular to the longitudinal direction of the ice tray 11 of the ice making apparatus 10 of FIG.
  • FIG. 9 shows a cross section including the upper duct 13 a, the side ducts 14 a, and the drive unit 12.
  • the equivalent diameter d is calculated at a portion where the area of the cross section perpendicular to the flowing direction of the cold air in the upper duct 13a and the side duct 14a is the smallest.
  • the equivalent diameter d 1 in the upper duct 13a is smaller than the equivalent diameter d 2 on the side duct 14a.
  • the density of the cold air flowing through the high temperature upper duct 13a is reduced by the heat exchange with the ambient air, and the density of the cold air flowing through the side duct 14a and blown out from the side air outlet 14 is higher. Therefore, since the cold air blown out from the upper outlet 13 has a smaller density than the air blown out from the side outlets 14, buoyancy is generated. Due to the buoyancy, cold air blown out from the upper outlet 13 is unlikely to sink to the ice tray 11 side. Therefore, the cool air just blown out from the upper outlet 13 can easily reach the upper space 302 of the ice tray 11 on the near side of the ice making chamber 300 without contacting with the water stored in the ice tray 11 and exchanging heat.
  • the cool air blown out from the upper blowout port 13 does not sink in the vicinity of the drive unit 12 due to the buoyancy generated from the density difference from the cold air blown out from the side blowout port 14.
  • the cold air blown out from the upper blowout port 13 flows along the ceiling surface 18 a by the Coanda effect at a location away from the drive unit 12. Therefore, cold air which is not heat-exchanged with water is supplied to the water reservoir 11 a on the ice tray 11 located on the front side of the ice making chamber 300.
  • the cold air blown out from the upper blowout port 13 is not sharply bent in the region on the drive unit 12 side on the ice tray 11, there is no pressure loss due to the bend flow. Furthermore, since the ceiling surface 18a is a smooth surface without providing a structure such as a protrusion to block the flow, the pressure loss of the cold air is small and the flow rate does not decrease. A sufficient amount of cold air can be supplied to the water storage section 11 a of the ice tray 11.
  • the cold air blown out from the side outlet 14 is mainly supplied onto the water storage section 11 a of the ice tray 11 on the drive section 12 side, and exchanges heat with water, before the ice making room 300. It flows to the area of the side.
  • cold air enters the cold air return port 20 on the side of the ice tray 11.
  • cold air blown out from the upper blowout port 13 and supplied onto the water storage portion 11a of the ice tray 11 on the front side of the ice making room 300 also enters the cold air return port 20 after heat exchange with water.
  • Equivalent diameter d 3 of the cool air return port 20 satisfies the following conditions represented using the equivalent diameter d 2 of the equivalent diameter d 1 and the side duct 14a of the upper duct 13a.
  • the equivalent diameter d 3 of the cold air return port 20 is set to satisfy the relationship of 1 / d 3 ⁇ 1 / d 1 + 1 / d 2 . That is, the relationship of d 3 d d 1 d 2 / (d 1 + d 2 ) is satisfied. If the equivalent diameter d 3 of the cool air return port 20 of cooling air is the side to outflow above conditions are satisfied, the pressure loss on the side where cool air flows out decreases, inflow into cold return port 20 is increased.
  • the cold air supplied to the upper space 302 of the ice tray 11 is likely to enter the cold air return port 20 without circulating and staying in the upper space 302. Therefore, it is possible to suppress the circulation of cold air containing water in the upper space 302, and to suppress the formation of frost in the ice making chamber 300. Further, by satisfying the condition of the equivalent diameter d 3 of the cool air return port 20, also increases the flow rate of the cool air flowing through the upper space 302 of the ice tray 11.
  • the water stored on the side of the drive unit 12 on the ice tray 11 is cooled mainly by the cold air blown out from the side air outlet 14. Further, the water stored on the ice tray 11 on the front side of the ice making chamber 300 is mainly cooled by the cold air blown out from the upper outlet 13. In this way, cold air spreads on the ice tray 11 on average, and ice is uniformly made on the ice tray 11.
  • the ice making apparatus according to the present invention can supply cold air to the entire ice making tray at a low cost and save space and perform uniform ice making without adding components such as a ceiling air path from the conventional ice making apparatus.
  • the ice making apparatus 10 is the ice making apparatus 10 installed in the refrigerator 1 and is an ice tray with a longitudinal direction from the front side to the back side of the refrigerator 1
  • the upper blowout port 13 and the upper blowout port 13 which are disposed above the ice chamber 300 where the 11 is disposed and above the back of the ice making chamber 300 than the ice making tray 11 and blows cold air into the space 302 above the ice making tray 11
  • a side outlet 14 which is opened in a direction intersecting with the direction in which the air is blown and which blows cold air into the upper space 302 of the ice tray 11.
  • the side outlets 14 are provided below the upper outlets 13.
  • the cold air blown out from the upper outlet 13 and the cold air blown out from the side outlet 14 do not collide in the vicinity of the upper outlet 13 and the side outlets, and ice making It reaches a predetermined area on the plate 11. Accordingly, the cold air blown out from the upper blowout port 13 reaches the water storage portion 11 a of the ice making tray 11 located on the front side of the ice making chamber 300. In addition, the cold air blown out from the side air outlet 14 reaches the water storage portion 11 a of the ice making tray 11 located on the back side of the ice making chamber 300. In this manner, cold air can be supplied to the entire water storage portion 11a on the ice tray 11 without installing a duct at the top, and ice can be uniformly made on the ice tray 11 with a space saving.
  • the ice tray 11 is disposed with the water reservoir 11a to be iced upward, and the ice making chamber 300 is positioned above the water reservoir 11a.
  • a ceiling surface 18a facing the water reservoir 11a.
  • the ceiling surface 18 a includes a slope portion 18 b which descends toward the ice making plate 11 as it goes from the back side to the front side of the ice making room 300.
  • the sloped end 18 c located on the side closer to the ice tray 11 of the sloped portion 18 b is positioned on the front side of the ice making chamber 300 than the side outlet 14.
  • the side air outlet 14 is located below the inclined surface 18 b of the ceiling surface 18 a, so that the cold air blown out from the upper air outlet 13 is blown out from the side air outlet 14. It passes above the cold air and easily reaches the water reservoir 11 a of the ice tray 11 located on the front side of the icemaker 300.
  • the pressure loss can be suppressed, and the decrease in the flow rate can be suppressed.
  • the ice making apparatus 10 includes the drive unit 12 for rotating the ice tray 11, the upper outlet 13 is disposed above the drive 12, and the side outlets 14 is disposed on the front side of the ice making chamber 300 relative to the drive unit 12.
  • the drive unit 12 is disposed on the back side of the ice making chamber 300 with respect to the ice tray 11 so as to be adjacent to the ice tray 11 and has the drive unit upper portion 12 a protruding above the ice tray 11.
  • the side outlet 14 is opened toward the corner area of the upper space 302 of the ice tray 11 formed by the upper end of the ice tray 11 and the upper portion 12 a of the drive unit.
  • the side air outlet 14 supplies cold air to the corner between the upper end of the ice tray 11 and the upper portion 12a of the drive unit, so the cold air blown out from the upper air outlet 13 is bent sharply to There is no need to supply cold air to the corners. Therefore, the cold air blown out from the upper blowout port 13 does not have to be a bend flow, and the pressure loss can be suppressed.
  • the cold air outlet 6 for blowing cold air the upper duct 13 a branched from the cold air outlet 6 and reaching the upper outlet 13, and the cold air outlet 6 And a side duct 14 a branched to the side outlet 14.
  • Equivalent diameter d 1 of the cross section of the upper duct 13a is smaller than the equivalent diameter d 2 of the cross section of the side duct 14a.
  • the ice making apparatus 10 includes the cold air return port 20 into which the cold air blown out from the upper air outlet 13 and the side air outlet 14 flows. 3 is larger than the equivalent diameter d 2 of the cross section of the side duct 14a.

Landscapes

  • 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)

Abstract

La présente invention concerne un dispositif de fabrication de glace pour un réfrigérateur qui peut faire passer de l'air froid uniformément sur un plateau à glace et fabriquer de manière uniforme de la glace tout en commandant la dimension en hauteur. Un dispositif de fabrication de glace pour un réfrigérateur comprend une chambre de fabrication de glace placée à l'intérieur dudit dispositif pour faire face à la direction longitudinale d'un plateau à glace depuis l'avant du réfrigérateur vers l'arrière, une sortie supérieure qui est placée au-dessus du plateau à glace à l'arrière de la chambre de fabrication de glace et qui souffle de l'air froid dans un espace supérieur du plateau à glace, et une sortie latérale qui s'ouvre dans une direction qui coupe la direction d'ouverture de la sortie supérieure et qui souffle de l'air froid dans l'espace supérieur du plateau à glace. La sortie latérale est prévue pour être plus basse que la sortie supérieure.
PCT/JP2017/043647 2017-12-05 2017-12-05 Dispositif de fabrication de glace Ceased WO2019111321A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2019557899A JP6937843B2 (ja) 2017-12-05 2017-12-05 製氷装置
PCT/JP2017/043647 WO2019111321A1 (fr) 2017-12-05 2017-12-05 Dispositif de fabrication de glace
TW107136955A TWI682136B (zh) 2017-12-05 2018-10-19 製冰裝置
CN201811382760.8A CN109974361B (zh) 2017-12-05 2018-11-20 制冰装置
CN201821919159.3U CN209310321U (zh) 2017-12-05 2018-11-20 制冰装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/043647 WO2019111321A1 (fr) 2017-12-05 2017-12-05 Dispositif de fabrication de glace

Publications (1)

Publication Number Publication Date
WO2019111321A1 true WO2019111321A1 (fr) 2019-06-13

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Country Status (4)

Country Link
JP (1) JP6937843B2 (fr)
CN (2) CN109974361B (fr)
TW (1) TWI682136B (fr)
WO (1) WO2019111321A1 (fr)

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EP4276391A4 (fr) * 2021-01-07 2024-11-27 LG Electronics Inc. Réfrigérateur
US12595948B2 (en) * 2022-01-12 2026-04-07 Lg Electronics Inc. Ice maker, refrigerator, and method for controlling the refrigerator

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WO2019111321A1 (fr) * 2017-12-05 2019-06-13 三菱電機株式会社 Dispositif de fabrication de glace

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US12595948B2 (en) * 2022-01-12 2026-04-07 Lg Electronics Inc. Ice maker, refrigerator, and method for controlling the refrigerator

Also Published As

Publication number Publication date
CN209310321U (zh) 2019-08-27
TW201925705A (zh) 2019-07-01
CN109974361B (zh) 2021-09-28
TWI682136B (zh) 2020-01-11
CN109974361A (zh) 2019-07-05
JP6937843B2 (ja) 2021-09-22
JPWO2019111321A1 (ja) 2020-07-16

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