WO2022135128A1 - 制冰机 - Google Patents

制冰机 Download PDF

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Publication number
WO2022135128A1
WO2022135128A1 PCT/CN2021/135794 CN2021135794W WO2022135128A1 WO 2022135128 A1 WO2022135128 A1 WO 2022135128A1 CN 2021135794 W CN2021135794 W CN 2021135794W WO 2022135128 A1 WO2022135128 A1 WO 2022135128A1
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WO
WIPO (PCT)
Prior art keywords
liquid
cooling
rod
shaped member
liquid container
Prior art date
Application number
PCT/CN2021/135794
Other languages
English (en)
French (fr)
Inventor
仓谷利治
设乐真辅
片桐贤宏
Original Assignee
海尔智家股份有限公司
青岛海尔电冰箱有限公司
Aqua 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 海尔智家股份有限公司, 青岛海尔电冰箱有限公司, Aqua 株式会社 filed Critical 海尔智家股份有限公司
Priority to CN202180086473.6A priority Critical patent/CN116685815A/zh
Publication of WO2022135128A1 publication Critical patent/WO2022135128A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25CPRODUCING, WORKING OR HANDLING ICE
    • F25C1/00Producing ice
    • F25C1/08Producing ice by immersing freezing chambers, cylindrical bodies or plates into water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25CPRODUCING, WORKING OR HANDLING ICE
    • F25C1/00Producing ice
    • F25C1/18Producing ice of a particular transparency or translucency, e.g. by injecting air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25CPRODUCING, WORKING OR HANDLING ICE
    • F25C1/00Producing ice
    • F25C1/22Construction of moulds; Filling devices for moulds
    • F25C1/24Construction of moulds; Filling devices for moulds for refrigerators, e.g. freezing trays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25CPRODUCING, WORKING OR HANDLING ICE
    • F25C1/00Producing ice
    • F25C1/22Construction of moulds; Filling devices for moulds
    • F25C1/25Filling devices for moulds
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25CPRODUCING, WORKING OR HANDLING ICE
    • F25C5/00Working or handling ice
    • F25C5/02Apparatus for disintegrating, removing or harvesting ice
    • F25C5/04Apparatus for disintegrating, removing or harvesting ice without the use of saws
    • F25C5/08Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice
    • F25C5/10Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice using hot refrigerant; using fluid heated by refrigerant

Definitions

  • the present invention relates to an ice maker that freezes liquid to generate ice, in particular to an ice maker installed in a box of a refrigerator.
  • An ice maker that freezes a liquid to generate ice has been proposed to make ice by cooling a cooling protrusion immersed in a liquid in a tray using a refrigerant of a cooling system of a refrigerator to make ice (for example, refer to patent Reference 1).
  • a refrigerant of a cooling system of a refrigerator for example, refer to patent Reference 1.
  • ice-making can be efficiently performed.
  • Patent Document 1 Japanese Patent Laid-Open No. 2004-150785.
  • the objective of this invention is to solve the said problem, and to provide the ice maker which can manufacture transparent ice efficiently.
  • the ice maker of the present invention is an ice maker arranged in a box of a refrigerator, and is characterized in that it includes:
  • a cooling part including a metal plate, a plurality of metal cooling fins extending upward from an upper surface of the metal plate, and a metal rod-shaped member extending downward from a lower surface of the metal plate;
  • Liquid containers which are used to store liquids
  • the gas in the cooling duct flows between the cooling fins
  • the temperature of the rod-shaped member cooled by the cooling fins is ⁇ 10° C. or higher and ⁇ 1° C. or lower in a state where the predetermined region from the tip portion of the rod-shaped member is immersed in the liquid in the liquid container.
  • the temperature of the rod-shaped member cooled by the cooling fin is ⁇ 10° C. or higher and ⁇ 1° C. or lower in a state where the predetermined region from the distal end portion of the rod-shaped member is immersed in the liquid contained in the liquid container.
  • the ice maker of the present invention is characterized by comprising:
  • a heater for deicing is attached to a base end portion of the rod-shaped member connected to the metal plate.
  • the rod-shaped member 16 can be directly heated by the deicing heater 20 . Therefore, after the ice is generated around the rod-shaped member 16 , the rod-shaped member 16 can be rapidly heated, and the generated ice can be separated from the rod-shaped member 16 .
  • the ice maker of the present invention is characterized in that:
  • the lower surface of the metal plate and the heater for deicing are covered with a heat insulating material.
  • the lower surface of the metal plate and the heater for deicing are covered with a heat insulating material.
  • the liquid container is also cooled by the cooled metal plate, and it is possible to prevent freezing of the liquid other than around the rod-shaped member in the liquid container. It is also possible to prevent the temperature in the ice maker from rising when the deicing heater is operated to separate the generated ice from the rod-shaped member. Thereby, the ice-making efficiency can be prevented from being lowered in the subsequent ice-making process.
  • the ice maker of the present invention is characterized in that:
  • the gas flowing into the cooling ducts flows along the inner walls of the cooling ducts on the side of one end of the cooling fins in a direction intersecting with the extending direction of the cooling fins, and a part of the gas flows into each of the cooling fins. Between the cooling fins, flow out from the other end of the cooling fins,
  • the cross-sectional area of the flow passage in the direction intersecting the extending direction of the cooling fins is A1
  • the total cross-sectional area of the flow passages between the cooling fins is A2, and the relationship of A1 ⁇ A2 is established.
  • the cross-sectional area A1 of the flow paths in the direction intersecting the extending direction of the cooling fins is larger than the total cross-sectional area A2 of the flow paths between the cooling fins, it is possible to extend the flow path between the cooling fins with a larger flow path.
  • Supply air-conditioning since the flow paths for supplying cool air to the cooling fins have a header function, the flow rate of the cool air supplied to each cooling fin can be made constant. Thereby, the cooling efficiency can be improved, and it is expected to achieve uniform cooling of each rod-shaped member.
  • the ice maker of the present invention is characterized in that:
  • a gas guide is included that guides the gas flowing out from the other end of the cooling fin, and causes the gas to leave the liquid container.
  • the gas passing through the cooling fin is guided by the gas guide to be separated from the liquid container, cold air does not contact the liquid container, and the liquid in the liquid container can be prevented from freezing outside the rod-shaped member.
  • the ice maker of the present invention is characterized in that:
  • It includes a liquid storage tank arranged at a position higher than the liquid container, a liquid feeding and removing pump, a liquid storage tank side flow path connecting the liquid storage tank and the liquid feeding and removing pump, and connecting the liquid feeding and removing pump and the liquid container side flow path of the liquid container,
  • the liquid in the liquid storage tank is supplied into the liquid container, and the liquid in the liquid container is returned to the liquid storage tank,
  • An air hole is provided in the upper part of the tank-side flow path.
  • the storage is provided with an air hole. Therefore, when the liquid in the tank is supplied to the liquid container and the liquid supply and removal pump is stopped, the outside air flows into the inside of the tank-side channel from the air hole, and the liquid in the tank-side channel falls by gravity. Return to the reservoir. This can prevent the liquid in the tank from flowing into the liquid container due to the siphon phenomenon.
  • the liquid container side flow path serving as the suction side of the liquid supply and removal pump is filled with liquid, so that the liquid supply and removal pump can be used without problems.
  • the scavenger pump 70 is reversed to return the liquid to the reservoir.
  • an ice maker capable of efficiently producing transparent ice can be provided.
  • FIG. 1 is a perspective view showing an ice maker according to an embodiment of the present invention.
  • Fig. 2 is a plan view showing the ice maker according to the embodiment of the present invention.
  • FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 , and is a side cross-sectional view schematically showing particularly the arrangement of the cooling unit, the liquid container, and the flow paths in the cooling duct.
  • FIG. 4 is a view taken along arrow BB in FIG. 2 , and is a side view schematically showing a cooling fin and a rod-shaped member in particular.
  • FIG. 5 is a schematic diagram showing a liquid supply and removal system according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing a control structure of the ice maker according to the embodiment of the present invention.
  • FIG. 7 is a side cross-sectional view schematically showing an example of a refrigerator including the ice maker according to the embodiment of the present invention.
  • FIG. 8A is a side cross-sectional view schematically showing a liquid supply process performed by the ice maker according to the embodiment of the present invention.
  • FIG. 8B is a side cross-sectional view schematically showing an ice making process performed by the ice maker according to the embodiment of the present invention.
  • Fig. 8C is a side cross-sectional view schematically showing a liquid removal process performed by the ice maker according to the embodiment of the present invention.
  • 8D is a side cross-sectional view schematically showing an escape process performed by the ice maker according to the embodiment of the present invention.
  • 8E is a side cross-sectional view schematically showing an ice separation process performed by the ice maker according to the embodiment of the present invention.
  • FIG. 9 is a flowchart showing an example of the control of the ice making process of the present invention.
  • Fig. 10(a) is a diagram (photograph) showing ice produced by a prototype ice maker
  • Fig. 10(b) is another diagram (photograph) showing ice produced by a prototype ice maker.
  • FIG. 1 is a perspective view showing an ice maker 2 according to an embodiment of the present invention.
  • FIG. 2 is a plan view showing the ice maker 2 according to one embodiment of the present invention.
  • FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 , particularly a side cross-sectional view schematically showing the arrangement of the cooling unit 10 , the liquid container 60 , and the flow path 42 in the cooling duct 40 .
  • FIG. 4 is a side view schematically showing the cooling fin 12 and the rod-shaped member 16 in particular, which is a view taken along the line BB in FIG. 2 .
  • FIG. 5 is a diagram schematically showing a liquid supply and removal system 50 according to an embodiment of the present invention.
  • FIG. 6 is a block diagram showing a control structure of the ice maker 2 according to the embodiment of the present invention.
  • 7 is a side cross-sectional view schematically showing an example of the refrigerator 100 including the ice maker 2 according to the embodiment of the present invention.
  • the ice maker 2 includes: a cooling part 10 capable of freezing liquid to generate ice; a liquid container 60 capable of storing liquid; a moving mechanism 80 for rotating the liquid container 60; and a liquid feeding and removing system 50 for storing liquid
  • the liquid in the tank 72 is supplied to the liquid container 60 , and the liquid in the liquid container 60 is returned to the liquid storage tank 72 .
  • the liquid supply and removal pipe 52 for supplying the liquid to the liquid container 60 and removing the liquid from the liquid container 60 is shown in FIGS. 1 to 3 and 5 .
  • the liquid supply and removal pipe 52 constitutes a liquid container side flow path 56 (see FIG. 5 ) together with the piping 54 , and has a function of supplying liquid to the liquid container 60 and a function of removing the liquid.
  • the ice maker 2 of the present embodiment is installed in the box of the refrigerator 100 , and is supplied with cold air generated by the cooling system 150 of the refrigerator 100 .
  • the ice maker 2 also includes a control portion 90 (see FIG. 6 ) that controls the components of the ice maker 2 .
  • the liquid used for freezing to generate ice may be any liquid represented by drinking water.
  • the cooling unit 10 includes cooling fins 12 , a metal plate 14 , and a rod-shaped member 16 from the upper side to the lower side. It also includes a cooling pipe 40 , the cooling pipe 40 is provided with the cooling part 10 , and the cooling part 10 is cooled by the cold air flowing in the cooling pipe 40 .
  • the cooling portion 10 includes a plurality of cooling fins 12 erected on the metal plate 14, and the plurality of cooling fins 12 are arranged substantially parallel to each other at predetermined intervals. Furthermore, a plurality of rod-shaped members 16 are attached to the lower surface of the plate-shaped metal plate 14 .
  • the cool air generated by the cooling system 150 of the refrigerator 100 flows in the cooling duct 40 and between the cooling fins 12 of the cooling part 10 placed in the cooling duct 40 to cool the cooling part 10 .
  • the cooling fins 12 cool the metal plate 14 by thermal conduction, and further cool the rod-shaped member 16 attached to the metal plate 14 to a temperature below freezing point.
  • the temperature of the rod-shaped member 16 cooled by the cooling fins 12 is -10°C or higher and -1°C or lower while being immersed in the liquid in the liquid container 60 . Thereby, the liquid around the rod-shaped member 16 is frozen, and transparent ice can be generated around the rod-shaped member 16 .
  • the cooling fins 12 , the metal plate 14 , and the rod-shaped member 16 of the cooling unit 10 are all formed of metals with high thermal conductivity such as aluminum and copper, for example.
  • the cooling fins 12 are thin plate-like members having a substantially rectangular planar shape.
  • the metal plate 14 is a plate-like member having a substantially rectangular planar shape.
  • the cooling fins 12 are erected substantially vertically with respect to the metal plate 14 , and the cooling fins 12 are provided substantially parallel to each other.
  • the cooling fins 12 may be attached to the metal plate 14 by welding or brazing, or the cooling fins 12 and the metal plate 14 may be integrally formed by forging or the like.
  • the plurality of rod-shaped members 16 are attached to the lower surface of the metal plate 14 so as to extend downward from the base end portion to the distal end portion.
  • the cooling efficiency of the rod-shaped member 16 can be improved without variation, and stable cooling can be performed.
  • the rod-shaped member 16 has a circular cross-sectional shape, and the outer diameter of the example is about 5 to 20 mm, and the length is about 30 to 80 mm.
  • the planar shape of the metal plate 14 is determined by the size and the number of the rod-shaped members 16 to be attached. As the plane size of the metal plate 14, the vertical and horizontal dimensions are exemplified as about 40 to 400 mm.
  • the thickness of the metal plate 14 is, for example, about 2 to 10 mm.
  • the metal plate 14 of the present embodiment is provided with a male screw on the base end portion side of the rod-shaped member 16, and is fitted with a female screw formed in a hole provided in the metal plate 14. With such a configuration, the rod-shaped member 16 can be easily replaced and attached.
  • the rod-shaped member 16 of the present embodiment has a circular cross-sectional shape, but is not limited to this, and may be replaced with a rod-shaped member having an arbitrary cross-sectional shape represented by a polygon, a star, and a heart.
  • rod-shaped members 16 it is also possible to combine a plurality of rod-shaped members 16 to generate one piece of ice. Only small ice can be formed with one rod-shaped member 16, but for example, three rod-shaped members 16 can generate large ice, and three-leaf clover can also be generated by setting it in the shape of an edamame or by assembling three of them. ice like that.
  • rod-shaped member 16 can be attached to the metal plate 14 using a screw, but also the rod-shaped member 16 can be joined to the metal plate 14 by welding or brazing.
  • a solid rod-shaped member 16 is preferable, but in consideration of workability and the like, a hollow rod-shaped member 16 can also be used.
  • the cooling fin 12, the metal plate 14, and the rod-shaped member 16 are integrally protected from rust. As a result, it is possible to prevent the rust from dripping into the liquid if the metal such as the aluminum material rusts.
  • the deicing heater 20 is attached to the base end portion of the rod-shaped member 16 connected to the metal plate 14 .
  • the heater 20 for deicing a linear heater of silicon and vinyl chloride is used in this embodiment.
  • a PTC heater, a ceramic heater, a Peltier element, or the like may be used.
  • the rod-shaped member 16 can be directly heated by the heater 20 for deicing. Therefore, after the ice is generated around the rod-shaped member 16 , the rod-shaped member 16 can be rapidly heated, and the generated ice can be separated from the rod-shaped member 16 .
  • the lower surface of the metal plate 14 and the deicing heater 20 are covered with the heat insulating material 30 at the base end portion of the rod-shaped member 16 .
  • the heat insulating material 30 any heat insulating material represented by a foamed material can be used.
  • the heat insulating material 30 can effectively prevent the liquid container 60 from being cooled by the cooled metal plate 14 , and prevent the liquid in the liquid container 60 from freezing other than around the rod-shaped member 16 .
  • the temperature just below the heater 20 for deicing rises, the rise of the temperature around it is suppressed, and the temperature rise in the ice maker 2 can be suppressed when the heater is energized. Thereby, the ice-making efficiency can be prevented from being lowered in the subsequent ice-making process.
  • a heat insulating case can be replaced with a foamed material such as foamed polyethylene, or can be installed by filling a resin case with a heat insulating material such as a foamed polyurethane material and foamed styrene.
  • the size of the heat insulating material 30 around the deicing heater 20 is larger than the area of the metal plate 14 .
  • the metal plate 14 is cooled, the liquid in the liquid container 60 below it can be prevented from being cooled, and ice formation in the part other than the rod-shaped member 16 can be prevented effectively.
  • the deicing heater 20 is attached to the base end portion of the rod-shaped member 16 , after ice is generated around the rod-shaped member 16 , the generated ice can be quickly removed from the rod-shaped member 16 . break away.
  • the lower surface of the metal plate 14 and the deicing heater 20 are covered with the heat insulating material 30, so that the liquid container 60 can be prevented from being cooled by the cooled metal plate 14, and the inside of the liquid container 60 can be prevented from being cooled.
  • the liquid outside the periphery of the rod-shaped member 14 is frozen, and when the deicing heater 20 is operated, the temperature in the ice maker 2 can be prevented from rising, and the ice-making efficiency can be prevented from being lowered in the subsequent ice-making process.
  • the cooling duct 40 is formed of, for example, a resin material.
  • the cooling duct 40 includes a bottom face portion, three side wall portions erected to surround the bottom face portion, and one side face opening.
  • an inflow port 40A into which the cool air flows is opened in one side wall portion.
  • the inflow port 40A has an inflow path that spreads outward.
  • the bottom surface portion of the cooling duct 40 has a slit-shaped opening, and the rod-shaped member 16 extending downward from the metal plate 14 protrudes downward from the cooling duct 40 through the opening.
  • the cooling fins 12 and the metal plate 14 are placed inside the cooling duct 40 surrounded by the three side wall portions.
  • the cooling duct 40 is further provided with four circular holes in the bottom surface, into which pins 46 having heads are inserted from the lower side, and the top ends of the pins 46 are attached to the refrigerator 100 side. Thereby, the whole cooling part 10 can be mounted in the box of the refrigerator 100. Since the cooling unit 10 is not connected to the side of the refrigerator 100 by piping or the like, the cooling unit 10 can be easily attached and detached from the refrigerator 100 by the attaching and detaching pins 46 .
  • FIGS. 2 and 3 the flow of gas is schematically shown by dashed arrows.
  • the cool air passing through the evaporator 140 of the cooling system 150 of the refrigerator 100 flows into the cooling duct 40 from the inflow port 40A.
  • One end portion 12A of the cooling fin 12 is spaced from the inner wall 44 of the cooling duct 40 with a certain interval, and a flow path 42 through which the cooling air flows is provided.
  • the cross-sectional area of the flow path 42 is set to A1 (see the one-dot chain line frame in FIG. 3 ).
  • the flow path 42 extends in a direction substantially orthogonal to the extending direction of the cooling fins 12 .
  • the other end portion 12B of the cooling fin 12 is provided at the side opening of the cooling duct 40 . That is, the other end part 12B of the cooling fin 12 is opened toward the inside of the refrigerator 100 .
  • the cool air that has flowed into the cooling duct 40 flows along the inner wall 44 of the cooling duct 40 on the side of the one end portion 12A of the cooling fin in the flow path 42 that is substantially perpendicular to the extending direction of the cooling fin 12 , and a part of the cooling air flows into the cooling fin 12 . between the cooling fins 12 .
  • the cold air flowing between the cooling fins 12 flows out into the box of the refrigerator 100 from the other end portion 12B of the cooling fins 12 .
  • the cooling duct 40 is used to guide the direction of the cold air so that the cold air comes into contact with each cooling fin 12 uniformly, and the cold air is discharged from the liquid container 60 .
  • the extending direction of the flow passages 42 may not only be substantially orthogonal to the extending direction of the cooling fins 12 , but may also form a certain angle with respect to the extending direction of the cooling fins 12 .
  • the cross-sectional area A1 of the flow path 42 in the direction intersecting the extending direction of the cooling fins is larger than the total cross-sectional area A2 of the flow paths between the cooling fins, and the cool air temporarily exists when flowing between the cooling fins In the larger flow path 42 , the cool air is then supplied between the cooling fins 12 .
  • the flow passages 42 for supplying the cool air to the cooling fins 12 function as headers, so that the flow rate of the cool air supplied to the cooling fins 12 can be made constant.
  • the flow passages 42 for supplying cool air between the cooling fins 12 are larger flow passages that function as headers, the cooling air supplied to the cooling fins 12 can be divided into Flow is constant. Thereby, the cooling efficiency can be improved, and it is expected to achieve uniform cooling of each rod-shaped member 16 .
  • the gas guide 48 for guiding the gas flowing out from the other end portion 12B of the cooling fin 12 to leave the liquid container 60 is included.
  • the surrounding of the liquid container 60 is too cold, and the liquid in the liquid container may freeze outside the surrounding of the rod-shaped member 16 . Therefore, the gas passing through the cooling fins 12 is guided by the gas guides 48 to be discharged from the liquid container 60 and discharged to the outside of the ice maker 2 .
  • the liquid container 60 is formed of, for example, a resin material having elasticity.
  • the liquid container 60 has a liquid storage region R surrounded by a bottom surface portion and a side wall portion erected from the bottom surface portion. The upper part of the liquid storage area R is opened.
  • the rod-shaped member 16 of the cooling unit 10 is inserted into the liquid storage region R through the opening, and a predetermined region from the tip portion of the rod-shaped member 16 is provided in the liquid storage region R. As shown in FIG.
  • the six rod-shaped members 16 are arranged in a substantially straight line, and the liquid storage region R also extends slenderly along the rod-shaped members 16 .
  • a cross section substantially perpendicular to the extending direction of the liquid storage region R is shown, and the bottom surface part forming the bottom surface of the liquid storage region R and the side wall part forming the side surface are connected via a smooth curved part, and the upper part is open.
  • the metal rod-shaped member 16 is cooled by the cooling unit 10 cooled by the cold air, and the temperature of the metal rod-shaped member 16 is lower than the freezing point. Since the predetermined area from the tip portion of the rod-shaped member 16 is provided in the liquid storage area R of the liquid container 60 , ice can be generated around the portion of the rod-shaped member 16 immersed in the liquid. As a predetermined area, about 8-40 mm from the front-end
  • the temperature of the rod-shaped member 16 after water supply is made into the range of -10 degreeC or more and -1 degreeC or less. It is known that when ice is produced at a low temperature lower than -10°C, air or cracks are generated when the ice is formed, and the transparency is reduced. On the other hand, when the ice is slowly made at a relatively high temperature close to 0° C. in order to generate transparent ice, it is heated with a heater or the like, and the generation time of the ice becomes very long.
  • the ice is first produced from pure ice, and the ice is produced while extruding impurities from the inner side to the outer side. , can generate transparent ice without impurities in a short time.
  • the ice maker 2 which can generate
  • a shaft portion 62 extending along the extending direction of the liquid storage region R is provided in the region on the side surface of the liquid storage region R.
  • one end part of the shaft part 62 of the liquid container 60 is connected to the drive shaft of the moving mechanism 80 mentioned later.
  • the other end portion of the shaft portion 62 of the liquid container 60 is rotatably supported by the bearing portion 82 provided on the frame portion 84 of the ice maker 2 .
  • the liquid container 60 can be rotated about the point C of the center of the shaft portion 62 as the rotation center. That is, by the driving force of the moving mechanism 80, the liquid container 60 can be rotationally moved around the point C located in the end region of the liquid container 60 as the rotation center.
  • the antifreeze heater 22 is attached to the liquid container 60 .
  • a linear heater of silicon or vinyl chloride can be used similarly to the above-mentioned heater 20 for deicing.
  • a PTC heater, a ceramic heater, a Peltier element, or the like can also be used.
  • the liquid in the liquid container 60 can be more reliably prevented from freezing outside the periphery of the rod-shaped member 16 .
  • the moving mechanism 80 is used for rotationally moving the liquid container 60 .
  • the drive motor of the moving mechanism 80 is activated and the drive shaft rotates, the liquid container 60 rotates with the point C as the center of rotation.
  • the moving mechanism 80 can rotate the liquid container 60 clockwise or counterclockwise by the driving force of the driving motor.
  • the position of the liquid container 60 shown in FIG. 3 is called an ice making position.
  • the opening of the liquid container 60 faces upward, and the liquid can be stored in the liquid storage region R, and the predetermined region from the tip of the rod-shaped member 16 of the cooling unit 10 is provided through the opening. in the liquid storage area R.
  • the liquid container 60 can be rotated from the ice making position with the point C as the rotation center to the position where the liquid container 60 is not on the lower side of the rod-shaped member 16 of the cooling unit 10 (see FIGS. 8D and 8E ), and the liquid
  • the position of the container 60 is referred to as the avoidance position.
  • the rotation angle of the liquid container 60 between the ice-making position and the avoidance position mainly varies depending on the positional relationship between the rod-shaped member 16 of the cooling unit 10 and the liquid container 60 and the position of the rotation center point C, but it can be considered as 70 degrees to 120 degrees. range is appropriate.
  • the ice maker 2 of the present embodiment includes a liquid supply and removal system 50 that supplies the liquid in the liquid tank 72 to the liquid container 60 and returns the liquid in the liquid container 60 to the liquid tank 72 .
  • the liquid feeding and removing system 50 mainly includes: a liquid storage tank 72, which stores liquid; a liquid feeding and removing pump 70, which can rotate in the liquid feeding direction and the liquid removing direction; the liquid storage tank side flow path 74, which The liquid storage tank 72 and the liquid supply and removal pump 70 are connected; and the liquid container side flow path 56 is connected to the liquid removal pump 70 and the liquid container 60 .
  • the liquid container side flow path 56 includes a liquid supply and removal pipe 52 inserted into the liquid container 60 and a pipe 54 connected between the liquid supply and removal pipe 52 and the liquid supply and removal pump 70 .
  • the liquid in the liquid tank 72 can be supplied into the liquid container 60 and the liquid in the liquid tank 60 can be returned to the liquid tank 72 .
  • the liquid storage tank 72 is provided at a position higher than the liquid container 60 , and the liquid in the liquid storage tank 72 can be easily supplied into the liquid container 60 .
  • liquid supply and removal tube 52 Since only one liquid supply and removal tube 52 is inserted into the liquid container 60, the space around the liquid container 60 can be saved.
  • the liquid supply and removal pipe 52 is provided outside the cooling pipe 40, thereby preventing the liquid flowing in the liquid supply and removal pipe 52 from freezing.
  • the liquid in the tank 72 reaches the liquid supply and removal pump 70 through the tank side channel 74 .
  • the liquid flows in the liquid container side channel 56 from the liquid supply and removal pump 70 , and flows into the liquid container 60 from the tip opening 52A of the liquid supply and removal pipe 52 which is a part of the liquid container side flow channel 56 .
  • the control unit 90 controls the liquid supply and removal pump 70 to rotate in the liquid removal direction, the liquid in the liquid container 60 is sucked from the top opening 52A of the liquid supply and removal pipe 52, flows in the liquid container side channel 56, and reaches the liquid supply and removal Pump 70. The liquid flows from the liquid supply and removal pump 70 through the tank side channel 74 and returns to the liquid storage tank 72 .
  • the liquid supply and removal pump 70 lowers the liquid stored in the liquid storage tank 72 for a certain amount of time to supply water, and after ice making, the same liquid supply and removal pump 70 is reversed to return the liquid to the liquid storage tank 72 . In this way, by performing ice making while replacing water, transparent ice from which impurities have been removed can be produced.
  • the liquid container 60 is capable of storing liquid at the ice making position, and is opened above. As a result, only the tip region of the liquid supply and removal pipe 52 is inserted into the liquid container 60 from the upper opening, so that when the liquid container 60 is rotated and moved, interference between components can be easily prevented. If the liquid container 60 is provided with a liquid removal port at the bottom, when the liquid container 60 is rotated and moved, interference with other components increases, and the processing of the liquid removal pipe becomes complicated.
  • the top opening 52A of the liquid supply and removal pipe 52 is provided at a height H1 from the bottom surface of the liquid container 60 , even if the liquid removal pump 70 is driven in the liquid removal direction, the liquid remains below the bottom surface height H1 Area.
  • the height H1 can be exemplified as about 1 cm to 2 cm. Accordingly, even if impurities are contained in the liquid stored in the liquid container 60 after ice generation, the liquid containing impurities such as bleaching powder in the liquid container 60 can be prevented from being sucked up. This makes it possible to keep the transparency of the produced ice unchanged until the liquid in the liquid storage tank 72 is replaced.
  • the filtering function of the filter it is possible to suppress the increase in the concentration of the soluble matter or the insoluble matter of the liquid in the liquid storage tank 72, and to produce transparent and high-quality ice.
  • the liquid stored in the liquid container 60 after ice generation is recovered into the liquid storage tank 72 .
  • the liquid container 60 in order to remove impurities, it is necessary to shake the liquid container 60 to release air, or to discard the liquid in the liquid container 60 in which the impurities remain after ice is formed.
  • the remaining liquid except for the liquid containing impurities at the bottom, will be recovered into the original liquid storage tank 72 by reversing the liquid removal pump 70, Therefore, this problem can be solved.
  • the reservoir tank 72 is provided at a position higher than the liquid container 60 , in a state where the reservoir side flow path 74 , the liquid supply and removal pump 70 and the liquid tank side flow path 56 are filled with liquid, even if In the state where the liquid supply and removal pump 70 is not operated, the problem that liquid flows from the liquid storage tank 72 into the liquid container 60 also occurs due to the siphon principle.
  • the air hole 76 is provided in the upper part of the tank side flow path 74 . As the inner diameter of the air hole, about 1 mm can be exemplified.
  • the liquid in the tank 72 When the liquid in the tank 72 is supplied to the liquid container 60 and the liquid supply and removal pump 70 is stopped, the outside air flows into the tank side channel 74 from the air hole 76, and the liquid in the tank side channel 74 is caused by gravity. And fall, return to the reservoir. Thereby, the liquid in the tank 72 can be prevented from flowing into the liquid container 60 due to the siphon phenomenon.
  • the liquid supply and removal pump 70 is reversed to return the liquid in the liquid container 60 to the liquid storage tank 72, the liquid container side channel 56 on the suction side of the liquid supply and removal pump 70 is filled with liquid, so that there is no The problem is to reverse the liquid feed pump 70 , returning the liquid to the reservoir 72 .
  • the air hole 76 is preferably provided on the upper side of the liquid storage tank 72 . Thereby, even when the liquid in the tank-side flow path 74 leaks outward from the air hole 76, it can be recovered by the tank 72 (see the dashed arrow in FIG. 5).
  • control structure of the ice maker 2 of the present embodiment including the control unit 90 will be described with reference to FIG. 6 .
  • the control part 90 can operate (generate heat) the heater 20 for deicing by controlling the power supply of the heater 20 for deicing, and can stop an operation. Similarly, the control unit 90 can control the power supply of the anti-freezing heater 22 to operate (generate heat) and stop the operation of the anti-freezing heater 22 .
  • the control part 90 can rotate the liquid container 60 by controlling the motor which drives the moving mechanism 80, and can rotate the liquid container 60 between the ice making position and the escape position.
  • the control unit 90 controls the liquid supply and removal pump 70 of the liquid supply and removal system 50 and drives the liquid supply and removal pump 70 in the liquid supply direction, whereby the liquid can be supplied from the liquid storage tank 72 to the liquid container 60 .
  • the control unit 90 controls the liquid supply and removal pump 70 of the liquid supply and removal system 50 and drives it in the liquid removal direction, whereby the liquid can be returned from the liquid container 60 to the liquid storage tank 72 .
  • FIG. 7 the flow of the gas is indicated by the dashed arrow, and the flow of the refrigerant is indicated by the one-dot chain arrow.
  • the refrigerator 100 includes a freezing compartment 102A and a refrigerating compartment 102B.
  • Inlet-side flow paths 104A and 104B partitioned by partitions 106 are provided on the back sides of freezer compartment 102A and refrigerator compartment 102B.
  • FIG. 7 the case where the ice maker 2 is installed in the freezer compartment 102A is shown.
  • the invention is not limited to this, and the ice maker 2 can be installed in the refrigerator compartment 102B.
  • the evaporator 140 is provided in the inlet side flow path 104A of the freezer compartment 102A side, and the fan 170 is provided above the evaporator 140 .
  • a compressor 110 that communicates with an evaporator 140 is provided in a machine room outside the back side of the freezer compartment 102A.
  • the refrigerant (gas) compressed by the compressor 110 is liquefied in the condenser 120, decompressed in the process of passing through the capillary, and its boiling point is lowered, and then flows into the evaporator 140 through the dryer 130, and then the refrigerant passes through the evaporator 140 from the tank.
  • the gas in the body absorbs heat and is vaporized, and the vaporized refrigerant is compressed again by the compressor 110, and the cycle is repeated.
  • the refrigerator cooling system 150 to which the compressor 110, the condenser 120, the dryer 130, and the evaporator 140 are connected is formed.
  • the partition plate 106 is also provided with a blower outlet through which the cold air that has passed through the evaporator 140 directly flows into the freezing compartment 102A.
  • the cool air flowing into the cooling duct 40 flows out of the ice maker 2 through between the cooling fins 12 .
  • the cold air flowing out of the ice maker 2 circulates in the freezer compartment 102A, and returns to the lower side of the evaporator 14O in the inlet-side flow path 104A again.
  • cooling for ice making in the ice maker 2 can be performed, and storage items such as food stored in the freezer compartment 102A can be cooled.
  • FIG. 8A is a side sectional view schematically showing a liquid supply process performed by the ice maker according to an embodiment of the present invention
  • FIG. 8B is a side sectional view schematically showing an ice making process
  • FIG. 8C is a schematic side sectional view showing a liquid removal process
  • FIG. 8D is a side sectional view schematically showing the avoidance process
  • FIG. 8E is a side sectional view schematically showing the ice separation process.
  • FIG. 9 is a flowchart showing an example of the control of the ice making process of the present invention.
  • the control part 90 rotates the drive motor of the liquid supply and removal pump 70 of the liquid supply and removal system 50 in the liquid supply direction (step S2). Thereby, the liquid in the tank 72 is supplied into the liquid container 60 . Then, the control unit 90 determines whether or not the liquid level of the liquid container 60 has reached the height H2 based on the signal from the liquid level sensor or the time count of the timer (step S4). The control unit 90 keeps operating the liquid supply and removal pump 70 until the liquid level reaches the height H2, and stops the drive motor of the liquid supply and removal pump 70 when it is determined that the liquid level reaches the height H2 (step S6). Through this liquid supply step, the rod-shaped member 16 of the cooling unit 10 is immersed in the liquid in the liquid container 60 in a predetermined region L from the distal end.
  • the control unit 90 judges whether or not the time T corresponding to the ice generation time has elapsed by counting the timer (step S8 ).
  • the cooling part 10 is cooled by the cold air of the evaporator 140 of the refrigerator 100, and the rod-shaped member 16 of the cooling part 10 becomes -10 degreeC or more and -1 degreeC or less. As a result, transparent ice can be generated around the rod-shaped member 16 of the cooling unit 10 in a short time.
  • the control unit 90 determines that the time T has elapsed by the time counting of the timer, the ice making process ends.
  • the ice G can be generated from around the predetermined region L from the distal end of the rod-shaped member 16 of the cooling unit 10 . With an appropriate cooling temperature, it is possible to produce ice with low cloudiness and high transparency in a short time.
  • the control unit 90 drives the drive motor of the liquid supply and removal pump 70 of the liquid supply and removal system 50 in the liquid removal direction (step S10 ). Thereby, the liquid in the liquid container 60 is returned to the liquid storage tank 72 . Then, the control unit 90 determines whether or not the liquid level of the liquid container 60 has reached the height H1+ ⁇ based on the signal from the liquid level sensor or the time count of the timer (step S12). The control unit 90 continues the operation of the liquid supply and removal pump 70 until the liquid level reaches the height H1+ ⁇ , and stops the drive motor of the liquid supply and removal pump 70 when it is determined that the liquid level reaches the height H1+ ⁇ (step S14 ). When the liquid level drops to the position of the lower end of the liquid supply and removal pipe 52 , the liquid supply and removal pump 70 may be damaged by sucking in external air.
  • the ice generated around the rod-shaped member 16 can be formed A state in which there is no liquid around it.
  • control unit 90 drives the drive motor of the moving mechanism 80 to rotate the liquid container 60 from the ice making position to a retracted position where the liquid container 60 is not below the rod-shaped member 16 of the cooling unit 10 (step S16 ). ).
  • the liquid container 60 is rotated from the ice making position to the avoidance position in the range of 70 degrees to 120 degrees.
  • the liquid remaining in the liquid container 60 can be drained by the liquid removal unit 64 .
  • the liquid containing impurities can be discharged without returning it to the liquid storage tank 72 .
  • the control unit 90 controls the deicing heater 20 provided at the proximal end of the rod-shaped member 16 of the cooling unit 10 to supply power to heat it (step S18 ).
  • the temperature of the rod-shaped member 16 rises, and the area where the ice G generated around the rod-shaped member 16 comes into contact with the rod-shaped member 16 melts, and the ice G falls from the rod-shaped member 16 .
  • the dropped ice G is stored in the ice storage container 66 provided below.
  • control unit 90 continues to supply power to the deicing heater 20 until a preset time sufficient to drop the ice G from the rod-shaped member 16 has elapsed (step S20 ). Then, when it is determined that the predetermined time has elapsed, the control unit 90 stops power supply to the deicing heater 20 ( S22 ).
  • control unit 90 drives the drive motor of the moving mechanism 80 to rotate in the reverse direction, and rotates the liquid container 60 from the escape position to the ice making position (step S24).
  • the control unit 90 drives the drive motor of the moving mechanism 80 to rotate in the reverse direction, and rotates the liquid container 60 from the escape position to the ice making position (step S24).
  • transparent ice can be produced in about 30 minutes. Since the size of the ice cubes is proportional to the time, for example, a standard ice making time of 30 minutes can be used, and if a smaller quantity is required, the ice making time can be set to 15 minutes. . Also, if larger ice cubes are needed, you can set the ice making time to 45 minutes, even if it takes longer. It is also possible to produce transparent ice in which all the ices generated around the rod-shaped member 16 are connected to form a single plate with a further time-consuming process.
  • the actual trial ice maker 2 can produce the ice shown in FIGS. 10( a ) and 10 ( b ) by implementing the above-described ice making process. It was confirmed that transparent ice could be generated in a total required time of 30 minutes.

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Abstract

本发明提供一种能够高效地生成透明的冰的制冰机。所述制冰机(2)包括:冷却管道(40),其供通过冰箱的蒸发器的气体流动;冷却部(10),其包括金属板(14)、从金属板(14)的上表面向上侧延伸的多个金属制的冷却翅片(12)以及从金属板(14)的下表面向下侧延伸的金属制的棒状部件(16);以及液体容器(60),其能够储存液体,在冷却管道(40)内流动的气体在冷却翅片(12)之间流动,在从棒状部件(16)的顶端部起的规定区域浸泡在收容于液体容器(60)中的液体中的状态下,被冷却翅片(12)冷却了的棒状部件(16)的温度为-10℃以上且-1℃以下。

Description

制冰机 技术领域
本发明涉及一种使液体冷冻而生成冰的制冰机,特别是涉及一种设置在冰箱的箱内的制冰机。
背景技术
在使液体冷冻而生成冰的制冰机中,提出了通过使用冰箱的冷却系统的制冷剂对浸泡在托盘内的液体中的冷却突起进行冷却来进行制冰的制冰机(例如,参照专利文献1)。在专利文献1记载的发明中,在浸泡在托盘的制冰水槽内的液体中的冷却突起的周围生成冰,因此能够有效地进行制冰。
专利文献1:日本特开2004-150785号公报。
但是,在专利文献1记载的制冰机中,由于与使用制冷剂的冰箱的冷却系统连接,来冷却冷却突起,因此制冰水槽内的液体被急冷,从而出现所生成的冰白浊的问题。为了生成透明的冰,如果在接近0℃的较高温度下一边用加热器等加热一边制冰可以制出透明冰,但制冰需要时间,无法高效制冰。
发明内容
因此,本发明的目的在于解决上述问题,提供一种能够高效地制造透明的冰的制冰机。
本发明的制冰机是设置在冰箱的箱内的制冰机,其特征在于,包括:
冷却管道,其供通过所述冰箱的蒸发器的气体流动;
冷却部,其包括金属板、从所述金属板的上表面向上侧延伸的多个金属制的冷却翅片以及从所述金属板的下表面向下侧延伸的金属制的棒状部件;以及
液体容器,其用于储存液体;
所述冷却管道内的气体在所述冷却翅片之间流动;
在所述棒状部件从顶端部起的预定区域浸泡在所述液体容器中的液体的状态下,被所述冷却翅片冷却的所述棒状部件的温度为-10℃以上且-1℃以下。
根据本发明,在从棒状部件的顶端部起的预定区域浸泡在容纳于液体容器中的液体中的状态下,被冷却翅片冷却的棒状部件的温度为-10℃以上且-1℃以下。通过将棒状部件保持在适当的温度,能够在棒状部件的周围从内侧向外侧挤出杂质 的同时生成冰,从而能够在短时间内高效地生成不含杂质的透明的冰。
另外,本发明的制冰机的特征在于,包括:
所述棒状部件与所述金属板连接的基端部安装有脱冰用加热器。
根据本发明,由于在棒状部件的基端部安装有脱冰用加热器,因此能够利用脱冰用加热器20直接对棒状部件16进行加热。因此,在棒状部件16的周围生成冰之后,能够迅速地加热棒状部件16,使生成的冰从棒状部件16脱离。
另外,本发明的制冰机的特征在于,
在所述棒状部件的基端部,所述金属板的下表面和所述脱冰用加热器由绝热材料覆盖。
根据本发明,在棒状部件的基端部,金属板的下表面和脱冰用加热器由绝热材料覆盖。通过绝热材料,液体容器也被冷却的金属板冷却,能够防止液体容器内的棒状部件的周围以外的液体冻结。还能够防止为了使生成的冰从棒状部件脱离而运转脱冰用加热器时,制冰机内的温度上升。由此能够防止在之后的制冰过程中制冰效率降低。
另外,本发明的制冰机的特征在于,
流入所述冷却管道内的气体在所述冷却翅片的一个端部的侧方沿着所述冷却管道的内壁,向与所述冷却翅片的延伸方向交叉的方向流动,同时其一部分流入各所述冷却翅片之间,从所述冷却翅片的另一个端部流出,
与所述冷却翅片的延伸方向交叉的方向的流路的截面积设为A1,所述冷却翅片之间的流路的总截面积设为A2,则具有A1≥A2的关系。
根据本发明,由于与冷却翅片的延伸方向交叉的方向的流路的截面积A1大于冷却翅片之间的流路的总截面积A2,因此能够以更大的流路向冷却翅片之间供给冷气。由此,由于向冷却翅片供给冷气的流路有集管作用,因此能够使向各冷却翅片供给的冷气的流量恒定。由此能够提高冷却效率,并且有望实现各棒状部件的均匀冷却。
另外,本发明的制冰机的特征在于,
包括气体用引导件,所述气体用引导件对从所述冷却翅片的另一个端部流出的气体进行引导,使该气体离开所述液体容器。
根据本发明,通过气体用引导件引导通过冷却翅片的气体使其从液体容器离开,因此冷气不会接触液体容器,能够防止液体容器内的液体在棒状部件的周围以外冻结。
另外,本发明的制冰机的特征在于,
包括设置在比所述液体容器高的位置上的储液箱、给除液泵、连接所述储液箱和所述给除液泵的储液箱侧流路以及连接所述给除液泵和所述液体容器的液体容器侧流路,
通过所述给除液泵,将所述储液箱内的液体供给到所述液体容器内,并且使所述液体容器内的液体返回到所述储液箱内,
在所述储液箱侧流路的上部设置有气孔。
根据本发明,在通过给除液泵将设置在比液体容器高的位置的储液箱内的液体供给到液体容器而使液体容器内的液体返回储液箱的给除液系统中,在储液箱侧流路的上部设置有气孔。因此,在将储液箱内的液体供给到液体容器,给除液泵停止时,外部气体从气孔流入储液箱侧流路的内部,储液箱侧流路内的液体因重力而落下,返回储液箱。由此能够防止因虹吸现象使得储液箱内的液体流入液体容器内。在使给除液泵反转,使液体容器内的液体返回储液箱的情况下,由于在成为给除液泵的吸入侧的液体容器侧流路中充满液体,因此能够没有问题地使给除液泵70反转,使液体返回储液箱。
如上所述,在本发明中,能够提供一种能够高效地生成透明的冰的制冰机。
附图说明
图1是示出本发明的一个实施方式的制冰机的立体图。
图2是示出本发明的一个实施方式的制冰机的俯视图。
图3是图2的A-A剖视图,特别是示意性地示出冷却部、液体容器及冷却管道内的流路的配置的侧剖视图。
图4是图2的B-B向视图,特别是示意地示出冷却翅片和棒状部件的侧视图。
图5是示出本发明的一个实施方式的给除液系统的示意图。
图6是示出本发明的一个实施方式的制冰机的控制结构的框图。
图7是示意地示出具备本发明的一个实施方式的制冰机的冰箱的一例的侧剖视图。
图8A是示意地示出由本发明的一个实施方式的制冰机实施的给液工序的侧剖视图。
图8B是示意地示出由本发明的一个实施方式的制冰机实施的制冰工序的侧剖视图。
图8C是示意地示出由本发明的一个实施方式的制冰机实施的除液工序的侧剖视 图。
图8D是示意地示出由本发明的一个实施方式的制冰机实施的避让工序的侧剖视图。
图8E是示意地示出由本发明的一个实施方式的制冰机实施的分离冰工序的侧剖视图。
图9是示出本发明的制冰工艺的控制的一例的流程图。
图10(a)是示出由试制的制冰机生成的冰的图(照片);
图10(b)是示出由试制的制冰机生成的冰的另一图(照片)。
具体实施方式
以下,参照附图说明用于实施本发明的实施方式。需要说明的是,以下说明的制冰机及冰箱是用于将本发明的技术思想具体化的装置,只要没有特定的记载,就不将本发明限定于以下内容。在各附图中,有时对具有相同功能的部件标注相同的附图标记。关于各附图所示的部件的大小和位置关系等,为了明确说明,也有时会夸张示出。在以下记载和附图中,设想制冰机和冰箱设置在水平面上的情况,示出上下方向。
(一个实施方式的制冰机)
图1是示出本发明的一个实施方式的制冰机2的立体图。图2是示出本发明的一个实施方式的制冰机2的俯视图。图3是图2的A-A剖视图,特别是示意性地示出冷却部10、液体容器60及冷却管道40内的流路42的配置的侧剖视图。图4是图2的B-B向视图,特别是示意地示出冷却翅片12和棒状部件16的侧视图。图5是示意性地示出本发明的一个实施方式的给除液系统50的图。图6是示出本发明的一个实施方式的制冰机2的控制结构的框图。图7是示意地示出具备本发明的一个实施方式的制冰机2的冰箱100的一例的侧剖视图。
首先,参照图1至图7说明本发明的一个实施方式的制冰机2的概要。
制冰机2包括:冷却部10,其能够使液体冷冻而生成冰;液体容器60,其能够储存液体;移动机构80,用于旋转液体容器60;以及给除液系统50,其将储液箱72内的液体供给到液体容器60,并使液体容器60内的液体返回储液箱72。在图1至图3以及图5中示出了用于向液体容器60供给液体并从液体容器60除去液体的给除液管52。给除液管52与配管54一起构成液体容器侧流路56(参见图5),起到向液体容器60供给液体的功能和除去液体的功能。
如图7示出一例那样,本实施方式的制冰机2设置在冰箱100的箱内,被供给由冰箱100的冷却系统150生成的冷风。制冰机2还包括控制制冰机2的组成部件的控制部90(参见图6)。用于冻结而生成冰的液体可以为以饮用水为代表的任意液体。
<冷却部>
冷却部10从上侧到下侧包括冷却翅片12、金属板14及棒状部件16。还包括冷却管道40,所述冷却管道40中设置有冷却部10,通过冷却管道40中流动的冷风冷却冷却部10。
冷却部10包括在金属板14上竖立设置的多个冷却翅片12,多个冷却翅片12以预定间隔大致相互平行地布置。而且在板状的金属板14的下表面安装有多个棒状部件16。
冰箱100的冷却系统150生成的冷风在冷却管道40内流动,并在置于冷却管道40内的冷却部10的各冷却翅片12之间流动,以冷却冷却部10。冷却翅片12通过热传导冷却金属板14,进而将安装在金属板14的棒状部件16冷却到冰点以下的温度。如后所述,在本实施方式中,被冷却翅片12冷却的棒状部件16在浸泡在液体容器60内的液体中的状态下,温度为-10℃以上且-1℃以下。由此,棒状部件16周围的液体冻结,能够在棒状部件16的周围生成透明的冰。
冷却部10的冷却翅片12、金属板14及棒状部件16都由例如铝、铜等导热系数高的金属形成。冷却翅片12是具有大致长方形的平面形状的薄板状部件。金属板14是具有大致长方形的平面形状的板状部件。各冷却翅片12相对于金属板14大致垂直地竖立设置,各冷却翅片12大致相互平行地设置。既可以通过熔接、钎焊将冷却翅片12安装在金属板14上,也可以通过锻造等一体地形成冷却翅片12和金属板14。多个棒状部件16以从基端部到顶端部向下侧延伸的方式安装在金属板14的下表面。
由于棒状部件16安装于设置有冷却翅片12的金属板14,因此能够无偏差地提高对棒状部件16的冷却效率,能够进行稳定的冷却。
在图4中示出6根棒状部件16排成一列地安装在金属板14的情况。但是并不限于此,也可以将棒状部件16排列成多列。棒状部件16具有圆形的截面形状,示例的外径为5~20mm左右,长度为30~80mm左右。金属板14的平面形状由棒状部件16的大小和安装的根数决定。作为金属板14的平面尺寸,纵和横的尺寸示例的为40~400mm左右。金属板14的厚度,示例的为2~10mm左右。
本实施方式的金属板14在棒状部件16的基端部侧设置有外螺纹,并与在设置 于金属板14的孔部形成内螺纹配合。通过这样的结构,能够容易地更换安装棒状部件16。本实施方式的棒状部件16具有圆形的截面形状,但不限于此,也可以替换为具有以多边形、星形、心形为代表的任意截面形状的棒状部件。
也能够组合多根棒状部件16而生成一块冰。用一根棒状部件16只能形成较小的冰,但例如通过3个棒状部件16,能够生成较大的冰,通过设定为毛豆的形状或汇集3个,也能生成三片叶的三叶草那样的冰。
另外,不仅能够使用螺纹将棒状部件16安装在金属板14,也能够通过熔接、钎焊将棒状部件16接合在金属板14。考虑到棒状部件16的冷却效果,优选实心的棒状部件16,但考虑到可加工性等,也能够采用中空的棒状部件16。
进而,冷却翅片12、金属板14及棒状部件16优选一体地以防锈。由此能够防止万一铝材料等金属生锈导致锈滴落到液体中。
<脱冰用加热器>
在本实施方式中,在与金属板14连接的棒状部件16的基端部安装有脱冰用加热器20。作为脱冰用加热器20,在本实施方式中使用硅、氯乙烯的线状加热器。但是不限于此,也可以使用PTC加热器、陶瓷加热器、珀耳帖元件等。
利用脱冰用加热器20,能够直接对棒状部件16进行加热。因此在棒状部件16的周围生成冰之后,能够迅速地加热棒状部件16,使生成的冰从棒状部件16脱离。
<绝热材料>
而且,在本实施方式中,在棒状部件16的基端部,金属板14的下表面和脱冰用加热器20被绝热材料30覆盖。绝热材料30能够采用以发泡材料为代表的任意绝热材料。通过该绝热材料30,能够有效地防止液体容器60被冷却的金属板14冷却,避免液体容器60内棒状部件16周围以外的液体冻结。
进而,虽然脱冰用加热器20的正下方的温度上升,但其周围的温度的上升被抑制,能够抑制加热器通电时制冰机2内的温度的上升。由此能够防止在之后的制冰过程中制冰效率降低。
例如,考虑用绝热材料、装有绝热材料的壳体包围棒状部件16的脱冰用加热器20的周围。这样的绝热壳体既能够用发泡聚乙烯那样的发泡材料置换,也能够将发泡聚氨酯材料、发泡苯乙烯等绝热材料填充到树脂的壳体中来安装。
特别是,脱冰用加热器20的周边的绝热材料30的尺寸比金属板14的面积大。由此,金属板14被冷却,能够防止在其下方的液体容器60内的液体被冷却,能够有效地防止在棒状部件16以外的部分形成冰。
如上所述,根据本实施方式,由于在棒状部件16的基端部安装有脱冰用加热器20,因此在棒状部件16的周围生成冰之后,能够迅速地使所生成的冰从棒状部件16脱离。而且在棒状部件16的基端部,金属板14的下表面和脱冰用加热器20被绝热材料30覆盖,因此能够防止液体容器60也被冷却的金属板14冷却,避免液体容器60内的棒状部件14的周围以外的液体冻结,并且在使脱冰用加热器20运转时,能够防止制冰机2内的温度上升,避免在之后的制冰过程中制冰效率降低。
<冷却管道>
冷却管道40例如由树脂材料形成。冷却管道40包括底面部和以包围底面部的方式竖立设置的三个侧壁部、一个侧面开口。另外,在一个侧壁部开设有供冷气流入的流入口40A。流入口40A具有向外侧扩展的流入路径。在冷却管道40的底面部具有狭缝状的开口,从金属板14向下侧延伸的棒状部件16经由该开口从冷却管道40向下侧突出。而且,冷却翅片12和金属板14置于由三个侧壁部包围的冷却管道40的内部。
冷却管道40在底面部还开设置有四个圆孔,在该孔中从下侧插入具有头部的销46,将销46的顶端部安装在冰箱100侧。由此能够将冷却部10整体安装在冰箱100的箱内。由于冷却部10没有通过配管等与冰箱100侧连接,因此能够通过拆装销46,容易地将冷却部10从冰箱100安装拆卸。
接下来,参照图2和图3说明冷却管道40内的冷气的流动。在图2和图3中,用虚线的箭头示意性地示出气体的流动。通过冰箱100的冷却系统150的蒸发器140的冷气从流入口40A流入冷却管道40内。冷却翅片12的一个端部12A与冷却管道40的内壁44之间具有一定间隔,设置有供冷气流动的流路42。将该流路42的截面积设为A1(参见图3的单点划线的框)。该流路42在与冷却翅片12的延伸方向大致正交的方向上延伸。另外,冷却翅片12的另一个端部12B设置在冷却管道40的侧面开口。即,冷却翅片12的另一个端部12B朝向冰箱100的箱内开口。
流入冷却管道40内的冷气在冷却翅片的一个端部12A的侧方沿着冷却管道40的内壁44在与冷却翅片12的延伸方向大致正交的流路42内流动,同时其一部分流入各冷却翅片12之间。在各冷却翅片12之间流动的冷气从冷却翅片12的另一个端部12B流出至冰箱100的箱内。
这样,利用冷却管道40引导冷气流向,以使冷气均匀地与各冷却翅片12接触,将该冷气从液体容器60排出。流路42的延伸方向不仅能与冷却翅片12的延伸方向大致正交,还能够相对于冷却翅片12的延伸方向呈一定角度。
假设将流路42与冷却翅片12的延伸方向交叉方向上的截面积设为A1(参见图3的点划线的框),将各冷却翅片12之间的流路的截面积的合计面积(总截面积)设为A2(参见图4的点画部分),则在本实施方式中具有A1≥A2的关系。
根据本实施方式,流路42与冷却翅片的延伸方向交叉方向上的截面积A1大于冷却翅片之间的流路的总截面积A2,在冷却翅片之间流动时,冷空气暂存在较大的流动路径42中,之后将冷气供给到冷却翅片12之间。由此用于向冷却翅片12供给冷气的流路42起到集管的作用,因此能够使向各冷却翅片12供给的冷气的流量恒定。
如上所述,在本实施方式中,由于向冷却翅片12之间供给冷气的流路42为更大的流路起到集管的作用,因此能够使向各冷却翅片12供给的冷气的流量恒定。由此能够提高冷却效率,并且有望实现各棒状部件16的均匀冷却。
<气体用引导件>
在本实施方式中,包括气体用引导件48,所述气体用引导件48对从冷却翅片12的另一个端部12B流出的气体进行引导使其离开液体容器60。当通过冷却翅片12的气体被排出到设置有液体容器60的制冰机2内时,液体容器60的周围过冷,液体容器内的液体有可能在棒状部件16的周围以外冻结。因此,通过气体用引导件48引导通过冷却翅片12的气体,使其离开液体容器60,并排出到制冰机2外,能够防止液体容器60内的液体在棒状部件16的周围以外冻结。
<液体容器>
液体容器60例如由具有弹性的树脂材料形成。液体容器60具有由底面部和从底面部竖立设置的侧壁部包围的液体储存区域R。液体储存区域R的上方开口。冷却部10的棒状部件16通过该开口插入到液体储存区域R内,棒状部件16从顶端部起的预定区域设置在液体储存区域R内。
在本实施方式中,6根棒状部件16大致呈直线状排列,液体储存区域R也沿着棒状部件16细长地延伸。如图3所示,示出了与液体储存区域R的延伸方向大致正交的截面,形成液体储存区域R的底面的底面部和形成侧面的侧壁部经由平滑的曲线部相连,上方开口。
在本实施方式的制冰机2中,通过被冷气冷却的冷却部10冷却,金属制的棒状部件16变为冰点以下的温度。由于从棒状部件16的顶端部起的预定区域设置在液体容器60的液体储存区域R内,因此能够在棒状部件16的浸泡在液体中的部分的周围生成冰。作为预定区域,可以示例为距棒状部件16的顶端部8~40mm左右。
特别是,在本实施方式中,使供水后的棒状部件16的温度在-10℃以上且-1℃以下的范围。已知假如在低于-10℃的低温下制作冰,则在冰生成时会产生空气或裂纹,透明度下降。相反,当为了生成透明的冰而在接近0℃的较高的温度下缓慢地制冰时用加热器等加热,冰的生成时间会变得非常长。
另一方面,在本实施方式中,通过调整供水后的棒状部件16的温度,利用金属的棒状部件16直接冷却,冰先从纯粹的冰开始生成,一边从内侧向外侧挤出杂质一边生成冰,能够在短时间内生成不含杂质的透明的冰。
由此能够提供能够高效地生成透明的冰的制冰机2。
如图3所示,在液体储存区域R侧面的区域设置有沿着液体储存区域R的延伸方向延伸的轴部62。另外,如图1所示,液体容器60的轴部62的一个端部与后述的移动机构80的驱动轴连接。另一方面,液体容器60的轴部62的另一个端部可旋转的支承在设置于制冰机2的框架部84上的轴承部82。通过这样的结构,液体容器60能够以轴部62的中心的点C为旋转中心旋转。即,通过移动机构80的驱动力,能够使液体容器60以位于液体容器60的端部区域的点C为旋转中心旋转移动。
<防冻结加热器>
如图3所示,在本实施方式中,在液体容器60上安装防冻结加热器22。作为防冻结加热器22,可与所述脱冰用加热器20同样使用硅、氯乙烯的线状加热器。但是不限于此,还能够使用PTC加热器、陶瓷加热器、珀耳帖元件等。
如上所述,利用绝热材料30防止液体容器60被金属板14冷却,通过使防冻结加热器22运转,能够更可靠地防止液体容器60内的液体在棒状部件16的周围以外冻结。
<移动机构>
移动机构80用于使液体容器60旋转移动。当移动机构80的驱动马达起动而驱动轴旋转时,液体容器60以点C为旋转中心旋转。例如移动机构80能够通过驱动马达的驱动力使液体容器60顺时针或逆时针旋转移动。
将图3所示的液体容器60的位置称为制冰位置。在液体容器60位于制冰位置的情况下,液体容器60的开口朝向上方,能够将液体储存在液体储存区域R内,冷却部10的棒状部件16的从顶端部起的预定区域经由该开口设置在液体储存区域R内。
通过移动机构80,能够使液体容器60从制冰位置以点C为旋转中心旋转,旋转到液体容器60不在冷却部10的棒状部件16下侧的位置(参见图8D、8E),将该液 体容器60的位置称为避让位置。液体容器60在制冰位置和避让位置之间的旋转角度主要根据冷却部10的棒状部件16和液体容器60的位置关系以及旋转中心点C的位置不同而不同,但可以认为70度到120度的范围是适当的。
<给除液系统>
本实施方式的制冰机2包括将储液箱72内的液体供给到液体容器60并使液体容器60内的液体返回储液箱72的给除液系统50。如图5所示,给除液系统50主要包括:储液箱72,其储存液体;给除液泵70,其能够在给液方向和除液方向旋转;储液箱侧流路74,其连接储液箱72和给除液泵70;以及液体容器侧流路56,其连接给除液泵70和液体容器60。液体容器侧流路56包括插入液体容器60内的给除液管52和连接给除液管52和给除液泵70之间的配管54。
通过使给除液泵70正反旋转,能够将储液箱72的液体供给到液体容器60内,并且能够使液体容器60内的液体返回到储液箱72内。储液箱72设置在比液体容器60高的位置,能够容易地将储液箱72内的液体供给到液体容器60内。
由于仅将一根给除液管52插入液体容器60内,因此能够节省液体容器60周围的空间。另外,给除液管52设置在冷却管道40的外侧,从而防止在给除液管52内流动的液体冻结。
当通过后述的控制部90控制给除液泵向给液方向转动时,储液箱72内的液体通过储液箱侧流路74而到达给除液泵70。液体从给除液泵70在液体容器侧流路56内流动,从作为液体容器侧流路56的一部分的给除液管52的顶端开口52A流入液体容器60内。
当通过控制部90控制给除液泵70向除液方向转动时,液体容器60内的液体从给除液管52的顶端开口52A吸入,在液体容器侧流路56内流动,到达给除液泵70。液体从给除液泵70流经储液箱侧流路74,返回储液箱72内。
如上所述,利用给除液泵70使储存在储液箱72内的液体下降一定量一定时间而供水,制冰后使相同的给除液泵70反转,使液体返回储液箱72。这样,通过一边更换水一边进行制冰,能够生成除去了杂质的透明的冰。
液体容器60能够在制冰位置储存液体,上方开口。由此,仅将给除液管52的顶端区域从上方的开口部插入液体容器60内,因此在使液体容器60旋转移动时,能够容易地防止部件间的干扰。假设在液体容器60的底部设置有给除液口的情况下,在使液体容器60旋转移动时,与其他部件的干扰增加,从而存在给除液管的处理变得复杂的问题。
从图3可知,由于给除液管52的顶端开口52A设置在距液体容器60的底面高度H1的位置,因此即使向除液方向驱动给除液泵70,液体也会残留距底面高度H1以下的区域。高度H1能够例示为1cm至2cm左右。由此,即使在生成冰之后的液体容器60内储存的液体中含有杂质,也能够使液体容器60内含有漂白粉等杂质的液体不被吸起。由此能够使得保持产生的冰的透明度不变,直到更换液体储存罐72中的液体。
进而,在使液体从液体容器60返回到储液箱72的情况下,优选在使液体流入储液箱72内之前使其通过过滤器。借助过滤器的过滤功能,能够抑制储液箱72内的液体的可溶物或不溶物的浓度上升,实现生成透明且高质量的冰。
如上所述,在本实施方式中,在生成冰后的液体容器60内储存的液体被回收到储液箱72中。以往,为了除去杂质,需要摇动液体容器60来释放空气,或者在生成冰之后扔掉残留有杂质的液体容器60内的液体。在本实施例中,当在棒状部件16的周围生成冰时,残留的液体除了底部的含有杂质的液体外,都会通过给除液泵70的反转而回收到原来的储液箱72中,因此能够解决该问题。
<气孔>
如图5所示,由于储液箱72设置在比液体容器60高的位置,因此在储液箱侧流路74、给除液泵70及液体容器侧流路56充满液体的状态下,即使在给除液泵70不运转的状态下,也会因虹吸原理,而产生液体从储液箱72流入液体容器60的不良情况。为了应对该情况,在本实施方式中,在储液箱侧流路74的上部设置有气孔76。作为该气孔的内径,能够例示1mm左右。
将储液箱72内的液体供给到液体容器60,给除液泵70停止时,外部气体从气孔76流入储液箱侧流路74的内部,储液箱侧流路74内的液体因重力而落下,返回储液箱。由此,能够防止因虹吸现象使得储液箱72内的液体流入液体容器60内。在使给除液泵70反转,使液体容器60内的液体返回储液箱72的情况下,由于在给除液泵70的吸入侧的液体容器侧流路56中充满液体,因此能够没有问题地使给除液泵70反转,使液体返回储液箱72。
另外,气孔76优选设置在储液箱72的上侧。由此即使在储液箱侧流路74内的液体从气孔76向外泄漏的情况下,也能够利用储液箱72进行回收(参见图5的虚线箭头)。
<控制部>
接下来,参照图6说明包括控制部90的本实施方式的制冰机2的控制结构。
控制部90通过控制脱冰用加热器20的供电,能够使脱冰用加热器20运转(发热),停止运转。同样,控制部90通过控制防冻结加热器22的供电,能够使防冻结加热器22运转(发热),停止运转。
控制部90通过控制驱动移动机构80的马达,能够使液体容器60旋转,从而使液体容器60在制冰位置和避让位置之间旋转移动。
控制部90控制给除液系统50的给除液泵70,将其向给液方向驱动,由此能够将液体从储液箱72向液体容器60供给。同样地,控制部90控制给除液系统50的给除液泵70,将其向除液方向驱动,由此能够使液体从液体容器60返回储液箱72。
(本发明的一个实施方式的冰箱)
接下来,参照图7说明在箱内设置有本实施方式的制冰机2的冰箱100。在图7中,用虚线的箭头示出气体的流动,用单点划线的箭头示出制冷剂的流动。
冰箱100包括冷冻室102A和冷藏室102B。在冷冻室102A和冷藏室102B的背面侧设置有由隔板106分隔出的入侧流路104A、104B。在图7所示的例子中,示出制冰机2设置在冷冻室102A内的情况。但是并不限于此,也能够将制冰机2设置在冷藏室102B内。
在冷冻室102A侧的入口侧流路104A设置有蒸发器140,在其上方设置有风扇170。在冷冻室102A的背面侧的外部的机械室设置有与蒸发器140连通的压缩器110。被压缩机110压缩的制冷剂(气体)在冷凝器120被液化,在通过毛细管的过程中被减压而沸点下降,经过干燥器130流入蒸发器140,然后,制冷剂通过蒸发器140从箱体内的气体中吸收热量而气化,气化了的制冷剂在压缩机110再次被压缩,重复这样的循环。如上所述,形成了连接有压缩机110、冷凝器120、干燥器130及蒸发器140的冰箱冷却系统150。
当驱动压缩机110和风扇170时,气体流动,通过蒸发器140的冷气从设置在隔板106上的开口106A流入制冰机2的冷却管道40的流入口40A。在隔板106上,与开口106A一起还设置有供通过蒸发器140的冷气直接流入冷冻室102A内的吹出口。
流入冷却管道40的冷气通过冷却翅片12之间从制冰机2流出。从制冰机2流出的冷气在冷冻室102A内循环,再次返回入口侧流路104A内的蒸发器14O的下侧。通过这样的气体流动,能够实施制冰机2中的用于制冰的冷却,并对收纳在冷冻室102A内的食品等收纳物进行冷却。
<控制处理>
图8A是示意地示出由本发明的一个实施方式的制冰机实施的给液工序的侧剖视图,图8B是示意地示出制冰工序的侧剖视图,图8C是示意地示出除液工序的侧剖视图,图8D是示意地示出避让工序的侧剖视图,图8E是示意地示出分离冰工序的侧剖视图。图9是示出本发明的制冰工艺的控制的一例的流程图。
接下来,参照图8A~8E,对图9所示的控制部90的用于制冰工艺的控制处理进行说明。
(制冰工艺)
<给液工序(参见图8A)>,
控制部90使给除液系统50的给除液泵70的驱动马达向给液方向旋转(步骤S2)。由此,将储液箱72内的液体供给到液体容器60内。然后,控制部90根据来自液面传感器的信号或计时器的计时,判断液体容器60的液面水平是否达到了高度H2(步骤S4)。控制部90使给除液泵70持续运转直至液面水平达到高度H2,在判定为液面水平到达高度H2时,使给除液泵70的驱动马达停止(步骤S6)。通过该给液工序,冷却部10的棒状部件16从顶端部起的预定区域L浸泡入液体容器60内的液体中。
<参见制冰工序图8B>
在所述给液工序之后,控制部90通过计时器的计时,判断是否经过了与冰的生成时间相对应的时间T(步骤S8)。通过冰箱100的蒸发器140的冷气将冷却部10冷却,冷却部10的棒状部件16成为-10℃以上且-1℃以下。由此能够在短时间内在冷却部10的棒状部件16的周围生成透明的冰。
然后,通过计时器的计时,控制部90在判定为经过了时间T时,结束制冰工序。如图8B所示,能够从冷却部10的棒状部件16的顶端部起的预定区域L的周围生成冰G。通过适当的冷却温度,能够在短时间内生成白浊少的透明度高的冰。
<除液工序(参见图8C)>
在所述制冰工序之后,控制部90使给除液系统50的给除液泵70的驱动马达向除液方向驱动(步骤S10)。由此,液体容器60内的液体返回储液箱72内。然后,控制部90根据来自液面传感器的信号或计时器的计时,判断液体容器60的液面水平是否达到高度H1+α(步骤S12)。控制部90使给除液泵70持续运转直至液面水平达到高度H1+α,在判定液面水平达到高度H1+α时,使给除液泵70的驱动马达停止(步骤S14)。当液面水平下降到给除液管52的下端的位置时,给除液泵70有可能吸入外部气体而损伤,因此高度H1+α的α是用于保护给除液泵70的余量。
如上所述,虽然液体残留在距底面高度H1+α以下的区域,但由于高度H1+α 的位置相比于棒状部件16的下端的位置足够低,因此能够形成在棒状部件16周围生成的冰的周围不存在液体的状态。
<避让工序(参见图8D)>
在所述的除液工序之后,控制部90驱动移动机构80的驱动马达,使液体容器60从制冰位置旋转移动到液体容器60不在冷却部10的棒状部件16下侧的避让位置(步骤S16)。例如,使液体容器60在70度至120度的范围从制冰位置旋转至避让位置。通过这样的移动旋转角度,即使在后述的分离冰工序中使所生成的冰G从冷却部10的棒状部件16落下,也不会与液体容器60相干扰。
在图8D所示的情况下,能够通过除液单元64排出残留在液体容器60内的液体。由此能够将含有杂质的液体排出而不使之返回储液箱72。但是,也可以考虑通过使排出了的液体通过过滤器等,作为供给到液体容器60内的液体进行再利用。
<分离冰工序(参见图8E)>
在避让工序之后,控制部90的控制是向设置在冷却部10的棒状部件16的基端部的脱冰用加热器20供电而使其加热(步骤S18)。由此棒状部件16的温度上升,在棒状部件的周围生成的冰G与棒状部件16接触的区域融化,冰G从棒状部件16落下。落下了的冰G收纳在设置于下方的冰收纳容器66中。
根据计时器的计时,控制部90持续向脱冰用加热器20供电,直至经过足够使冰G从棒状部件16落下的预设时间(步骤S20)。然后,控制部90在判定经过了预定时间时,停止向脱冰用加热器20供电(S22)。
然后,控制部90驱动移动机构80的驱动马达反方向旋转,使液体容器60从避让位置旋转移动到制冰位置(步骤S24)。由此,一系列的制冰工艺结束。
通过以上那样的制冰工艺,能够在约30分钟生成透明的冰。由于冰块的大小与时间成正比,例如,可以使用30分钟的标准制冰时间,如果需要的数量较少,可以将制冰时间设置为15分钟。。另外,如果需要较大的冰块,也可以将制冰时间设置为45分钟,即使这需要更长的时间。进一步花费时间,也能够制作在棒状部件16的周围生成的全部冰相连而成为一张板的透明冰。
(试验结果)
实际试制制冰机2,通过实施上述制冰工艺,能够生成图10(a)和图10(b)所示的冰。证实了能够以合计所需时间30分钟生成透明冰。
虽然对本发明的实施方式、实施方式进行了说明,但是公开内容也可以在构成的细节部分进行变化,实施方式、实施方式中的要素的组合、顺序的变化等都可以 在不脱离所要求的本发明的范围和思想的情况下实现。

Claims (10)

  1. 一种制冰机,其设置在冰箱的箱内,其特征在于,包括:
    冷却管道,其供通过所述冰箱的蒸发器的气体流动;
    冷却部,其包括金属板、从所述金属板的上表面向上侧延伸的多个金属制的冷却翅片以及从所述金属板的下表面向下侧延伸的金属制的棒状部件;以及
    液体容器,其用于储存液体;
    流过所述冷却管道内的气体在所述冷却翅片之间流动;
    在所述棒状部件从顶端部起的预定区域浸泡在所述液体容器中的液体中的状态下,所述棒状部件被所述冷却翅片冷却,所述棒状部件的温度为-10℃以上且-1℃以下。
  2. 根据权利要求1所述的制冰机,其特征在于,
    所述棒状部件与所述金属板连接的基端部安装有脱冰用加热器。
  3. 如权利要求2所述的制冰机,其特征在于,
    在所述棒状部件的基端部,所述金属板的下表面和所述脱冰用加热器覆盖有绝热材料。
  4. 根据权利要求1所述的制冰机,其特征在于,
    流入所述冷却管道内的气体在所述冷却翅片的一个端部的侧方沿着所述冷却管道的内壁,向与所述冷却翅片的延伸方向交叉的方向流动,部分气体在所述冷却翅片之间流动,从所述冷却翅片的另一个端部流出;
    将流路在与所述冷却翅片的延伸方向交叉方向上截面积设为A1,将所述冷却翅片之间的流路的总截面积设为A2,A1≥A2。
  5. 根据权利要求4所述的制冰机,其特征在于,
    还包括气体用引导件,所述气体用引导件用于引导从所述冷却翅片的另一个端部流出的气体离开所述液体容器。
  6. 根据权利要求1所述的制冰机,其特征在于,还包括:
    储液箱,其设置在比所述液体容器高的位置;给除液泵;储液箱侧流路,其连接所述储液箱和所述给除液泵;以及液体容器侧流路,其连接所述给除液泵和所述液体容器;
    通过所述给除液泵,将所述储液箱内的液体供给到所述液体容器内,并且使所 述液体容器内的液体返回所述储液箱内;
    在所述储液箱侧流路的上部设置有气孔。
  7. 如权利要求6所述的制冰机,其特征在于,所述液体容器侧流路包括插入所述液体容器内的给除液管,所述给除液管的顶端开口设置于距所述液体容器的底面高度H1的位置。
  8. 如权利要求7所述的制冰机,其特征在于,还包括控制部,所述控制部控制所述给除液泵将所述液体容器内的液体吸入所述除液箱内时,当所述液体容器内的液面水平高度达到H1+α时,控制所述给除液泵停止。
  9. 如权利要求1所述的制冰机,其特征在于,所述液体容器上安装有防冻结加热器。
  10. 一种冰箱,包括箱体以及制冷系统,所述制冷系统包括蒸发器,其特征在于,还包括如权利要求1所述的制冰机。
PCT/CN2021/135794 2020-12-23 2021-12-06 制冰机 WO2022135128A1 (zh)

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CN109708347A (zh) * 2018-10-12 2019-05-03 青岛海尔股份有限公司 制冰机的供水装置及具有其的制冰机和冰箱

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JP2004150785A (ja) * 2002-10-31 2004-05-27 Samsung Kwangju Electronics Co Ltd 製氷機
US20090049858A1 (en) * 2007-08-20 2009-02-26 Tae-Hee Lee Ice maker and refrigerator having the same
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