WO2018164428A1 - Machine à glaçons - Google Patents

Machine à glaçons Download PDF

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Publication number
WO2018164428A1
WO2018164428A1 PCT/KR2018/002573 KR2018002573W WO2018164428A1 WO 2018164428 A1 WO2018164428 A1 WO 2018164428A1 KR 2018002573 W KR2018002573 W KR 2018002573W WO 2018164428 A1 WO2018164428 A1 WO 2018164428A1
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WO
WIPO (PCT)
Prior art keywords
ice
temperature
time
making water
temperature sensor
Prior art date
Application number
PCT/KR2018/002573
Other languages
English (en)
Korean (ko)
Inventor
유세훈
Original Assignee
주식회사 아이스트로
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 주식회사 아이스트로 filed Critical 주식회사 아이스트로
Publication of WO2018164428A1 publication Critical patent/WO2018164428A1/fr
Priority to US16/551,723 priority Critical patent/US20190383541A1/en

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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
    • F25C1/22—Construction of moulds; Filling devices for moulds
    • F25C1/25—Filling devices for 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
    • F25C1/04—Producing ice by using stationary 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
    • F25C1/18—Producing ice of a particular transparency or translucency, e.g. by injecting air
    • 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
    • F25C1/12—Producing ice by freezing water on cooled surfaces, e.g. to form slabs
    • 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
    • F25C2301/00—Special arrangements or features for producing ice
    • 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
    • F25C2400/00—Auxiliary features or devices for producing, working or handling ice
    • F25C2400/14—Water supply
    • 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
    • F25C2500/00—Problems to be solved
    • F25C2500/04—Calculation of parameters
    • 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
    • F25C2500/00—Problems to be solved
    • F25C2500/08—Sticking or clogging of ice
    • 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
    • F25C2600/00—Control issues
    • F25C2600/02—Timing
    • 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
    • F25C2600/00—Control issues
    • F25C2600/04—Control means
    • 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
    • F25C2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25C2700/14—Temperature of water

Definitions

  • the present invention relates to an ice maker, and more particularly to an ice maker that can prevent the formation of slush.
  • Ice makers are devices that continuously produce lumps of ice with a certain shape, and ice makers are widely used in homes, restaurants, and cafes. Ice makers that make ice are manufactured by supplying ice makers stored in ice makers to an evaporator through a pump and ice making ice makers in an evaporator.
  • ice-making water is supplied to an evaporator.
  • ice-making water at room temperature gradually reaches a freezing point.
  • the ice sticks to the initial evaporator, but the ice should be enlarged.
  • slush occurs in the ice-water pool as it freezes instantaneously in the ice-water pool with the lowest kinetic energy.
  • the slush generated as described above temporarily stops the flow of the ice-making water or interrupts the circulation of the ice-making water, thereby slowing the ice formation and lowering the ice ice quality and reducing the production of the ice maker.
  • the technical problem to be solved by the present invention is to provide an ice maker that can prevent the occurrence of slush in the ice making process or to immediately remove the slush generated to form a high-quality ice.
  • an embodiment of the ice maker according to the present invention is an ice-making water storage in which ice-making water is stored therein; An evaporator receiving ice-making water stored in the ice-making water reservoir to ice ice-making water; A pump for moving the ice making water stored in the ice making water reservoir to the evaporator; A temperature sensor measuring a temperature of the ice making water in the ice making water reservoir; And deriving a control time point at which the slush is expected to occur in the ice making water reservoir based on the temperature of the ice making water measured by the temperature sensor, and controlling to prevent the occurrence of slush in the ice making water reservoir at the control time. And a control unit controlling to remove slush generated in the ice-making water reservoir.
  • the control time point is such that when the temperature sensor reaches a first temperature and reaches a second temperature lower than the first temperature within a first time period, When the second temperature is reached, when the temperature sensor reaches the first temperature and does not reach the second temperature within the first time, the temperature sensor reaches the first temperature and the first time elapses. Any one of a time point and when the second time elapses after the pump is operated when the temperature sensor does not reach the first temperature within a second time longer than the first time after the pump is operated. Can be.
  • the controller may control to supply water to the ice maker reservoir at the control time.
  • the controller may control the water at room temperature to be supplied to the ice maker reservoir for several seconds.
  • the vibrator positioned in the ice-making water reservoir to generate an ultrasonic wave, the control unit, the control unit, the ultrasonic wave in the ice-making tank through the vibrator at the control time point Can be controlled to occur.
  • the heater is disposed inside the ice-making reservoir to increase the temperature of the ice-making water in the ice-making reservoir; wherein the control unit, the control point, the heater It can be controlled to increase the temperature of the ice making water in the ice making reservoir.
  • the controller may stop the operation of the pump at the control time and control the evaporator to be supercooled.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute and the second time may be 10 minutes.
  • the controller is further configured to predict that a slush will occur in the ice maker after the control time, based on the temperature of the ice maker measured by the temperature sensor.
  • a viewpoint can be derived.
  • the additional control time point is determined by the temperature sensor when the temperature sensor reaches the first temperature and reaches the second temperature within the first time.
  • the temperature sensor When the temperature is reached, when the temperature sensor reaches the first temperature and does not reach the second temperature within the first time, when the temperature sensor reaches the first temperature and the first time has elapsed And when the temperature sensor does not reach the first temperature within the second time from the control time point, the second time elapses from the control time point.
  • the ice maker measures the temperature of the ice making water in the ice making reservoir and supplies water at room temperature at the time of slush, generates ultrasonic waves using a vibrator, or uses a heater to adjust the temperature of the ice making water.
  • FIG. 1 is a view schematically showing a first embodiment of an ice maker according to the present invention.
  • FIG. 2 is a flowchart schematically illustrating an example of a process of performing an ice maker according to the first embodiment to prevent slush from occurring.
  • FIG. 3 is a view schematically showing a second embodiment of an ice maker according to the present invention.
  • FIG. 4 is a flowchart schematically illustrating an example of a process of performing an ice maker according to a second embodiment to prevent slush from occurring.
  • FIG. 5 is a view schematically showing a third embodiment of an ice maker according to the present invention.
  • FIG. 6 is a flowchart schematically illustrating an example of a process of performing an ice maker according to a third embodiment to prevent slush from occurring.
  • FIG. 7 is a view schematically showing a fourth embodiment of an ice maker according to the present invention.
  • FIG. 8 is a flowchart schematically illustrating an example of a process of performing an ice maker according to a fourth embodiment to prevent slush from occurring.
  • the present invention relates to an ice maker capable of preventing the occurrence of slush in the ice-water reservoir or quickly removing the generated slush, for which the ice maker is expected to generate a slurry based on the temperature of the ice-making water in the ice-water reservoir.
  • a control unit for deriving a control point and controlling the occurrence of slush at the control point or controlling the generated slush to be removed.
  • the temperature sensor measuring the temperature of the ice-making water reaches the first temperature and reaches the second temperature lower than the first temperature within the first time, or when the temperature sensor reaches the second temperature. If the temperature sensor reaches the first temperature and does not reach the second temperature within the first time, the temperature sensor reaches the first temperature and the first time has elapsed, or the pump that moves the ice making water to the evaporator is operated. After that, when the temperature sensor does not reach the first temperature within a second time longer than the first time, the second time elapses after the pump is operated.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • control unit may derive an additional control point in which the slush is expected to occur in the ice-making water reservoir after the above-described control point, and may control to prevent the slush from occurring at the additional control point or to remove the generated slush. have.
  • the additional control time may be a time when the temperature sensor reaches the second temperature when the temperature sensor reaches the first temperature and reaches the second temperature within the first time, or when the temperature sensor reaches the first temperature and the first time If the second temperature has not been reached within a first time after the first temperature has elapsed after the temperature sensor has reached the first temperature, or if the temperature sensor has not reached the first temperature within a second time from the control time point, from the control time point It is the time elapsed.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • the controller may derive the additional control time one or more times to prevent the slush from occurring or to remove the generated slush.
  • the control point or additional control point at which the slurry is expected to occur in the ice-making water reservoir is derived through various experiments by the inventor of the present invention, and the control unit may prevent the occurrence of the slush or remove the generated slush.
  • water is supplied into the ice making tank, ultrasonic waves are generated in the ice making tank, a heater is used to raise the temperature of the ice making water in the ice making tank, or the ice making water is moved to the evaporator.
  • the operation of the pump may be suspended and the evaporator may be subcooled.
  • FIG. 1 is a view schematically showing a first embodiment of an ice maker according to the present invention.
  • the ice maker 100 of the first embodiment includes an ice maker 110, an evaporator 120, a pump 130, an ice maker valve 140, a temperature sensor 150, and a controller 160. It is provided. In the ice maker 100 of the first embodiment, the flow of the ice making water is indicated by the arrow.
  • the ice making tank 110 has an accommodation space in which ice making water can be stored. Ice making water is water for ice making, ice making water is supplied into the ice making reservoir 110 through the ice making water supply pipe 115, the supply of ice making water is made through the ice making water supply valve 140.
  • An upper limit sensor 170 and a lower limit sensor 175 are installed inside the ice maker 110, and an appropriate amount of ice maker may be used in the ice maker 110 using the detection sensors 170 and 175. To be supplied.
  • the evaporator 120 is disposed above the ice making tank 110 and ice-making water supplied from the ice making tank 110 through the pump 130.
  • the evaporator 120 is formed with a cooling line through which the refrigerant circulates, and the refrigerant circulates through the cooling line to ice the ice making water supplied to the evaporator 120.
  • the evaporator 120 of the first embodiment has a plate shape, ice is adhered to the surface of the evaporator 120 when the ice-making water supplied to the surface of the plate-shaped evaporator 120 reaches a freezing point, and then the ice is gradually expanded to make ice This is done. And the ice-making water that is not iced is circulated to the ice-making water reservoir 110 which is located under the evaporator 120.
  • the ice making water entering the ice making reservoir 110 is supplied to the evaporator 120 by the pump 130 again.
  • the pump 130 is located in the receiving space inside the ice-making reservoir 110, and supplies the ice-making water stored in the ice-making reservoir 110 to the evaporator 120 disposed above the ice-making reservoir 110. do.
  • the temperature sensor 150 is located in the accommodation space inside the ice making tank 110 and measures the temperature of the ice making water stored in the ice making tank 110.
  • the controller 160 controls to prevent slush from occurring in the ice-making water reservoir 110 or to quickly remove the slush generated. To this end, the controller 160 derives a control time point at which the slush is expected to occur in the ice making water reservoir 110, and the ice making water supply valve 140 so that water is supplied into the ice making water reservoir 110 at this control time. To control. At this time, the water may be water at room temperature, and when water at room temperature is supplied into the ice making tank 110, slush is generated in the ice making tank 110 by increasing the temperature of the ice making water in the ice making tank 110. Prevented or generated slush is quickly removed.
  • the control time point is derived based on the temperature of the ice making water measured by the temperature sensor 150.
  • the control point corresponds to the point in time when the temperature sensor 150 reaches the second temperature when the temperature sensor 150 reaches the first temperature and reaches the second temperature lower than the first temperature within the first time. .
  • the time point when the temperature sensor 150 reaches the first temperature and the first time elapses is set in advance.
  • the time point when the second time elapses after the pump 130 operates is controlled.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • FIG. 2 is a flowchart schematically illustrating an example of a process of a method of preventing the slush from occurring or quickly removing the generated slush by the ice maker 100 according to the first embodiment.
  • the controller 160 In order to prevent slush from occurring in the ice making tank 110 during ice making, first, the controller 160 measures the temperature through a temperature sensor 150 that measures the temperature of the ice making water in the ice making tank 110. Check whether it reaches 0 ° C (S220). If the temperature measured by the temperature sensor 150 reaches 0 ° C., the controller 160 calculates a time elapsed since reaching 0 ° C. (S230). In addition, the controller 160 checks whether 1 minute has elapsed since reaching 0 ° C. (S240).
  • the controller 160 measures the temperature of the temperature sensor 150 measuring the temperature of the ice making water in the ice making reservoir 110 and then measures -1.
  • the control unit 160 determines the ice making water supply valve 140. It is controlled to be turned on (ON) to supply water in the ice making reservoir 110 (S260). In this case, the water to be supplied may be supplied to the water at room temperature for several seconds, preferably about 5 seconds.
  • the controller 160 controls the temperature sensor ( When the temperature of 150 reaches 0 ° C. and one minute has elapsed, the ice-making water supply valve 140 is controlled to be turned on to supply water into the ice-making water reservoir 110 (S260). In this case, the water to be supplied may be supplied to the water at room temperature for several seconds, preferably about 5 seconds.
  • the controller 160 calculates an elapsed time after the pump 130 is operated. After that, it is checked whether 10 minutes have elapsed (S270), and when the temperature of the temperature sensor 150 does not reach 0 ° C. after 10 minutes has elapsed after the operation of the pump 130, the controller 160 controls the ice making water supply valve.
  • the control unit 140 is turned on to supply water into the ice making tank 110 (S260). In this case, the water to be supplied may be supplied to the water at room temperature for several seconds, preferably about 5 seconds.
  • the controller 160 may derive an additional control time point that is expected to further generate slush.
  • the controller 160 controls the ice making water supply valve 140 so that water is supplied into the ice making water reservoir 110 at this additional control point.
  • the additional control point is derived based on the temperature of the ice making water measured by the temperature sensor 150 similarly to the control point.
  • the additional control point corresponds to the point in time when the temperature sensor 150 reaches the second temperature when the temperature sensor 150 reaches the first temperature and reaches the second temperature lower than the first temperature within the first time. do.
  • the time point when the temperature sensor 150 reaches the first temperature and the first time elapses is set in advance.
  • the time when the second time elapses from the control time corresponds to the additional control time.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • the controller 160 may derive a time point at which the slush is expected to occur several times, and prevent the slush from being generated or quickly remove the generated slush by supplying water at room temperature at that time.
  • FIG. 3 is a view schematically showing a second embodiment of an ice maker according to the present invention.
  • the ice maker 300 includes an ice maker 310, an evaporator 320, a pump 330, an ice maker valve 340, a temperature sensor 350, and a vibrator 355. And a control unit 360.
  • the flow of the ice making water is indicated by an arrow.
  • the ice making tank 310 has an accommodation space in which ice making water can be stored. Ice making water is water for making ice, ice making water is supplied into the ice-making reservoir 310 through the ice-making water supply pipe 315, and ice-making water is supplied through the ice-making water supply valve 340. An upper limit detection sensor 370 and a lower limit detection sensor 375 are installed inside the ice making reservoir 310, and an appropriate amount of ice making water is stored in the ice making reservoir 310 using the detection sensors 370 and 375. To be supplied.
  • the evaporator 320 is disposed above the ice making tank 310, and ice-making water supplied from the ice making tank 310 through the pump 330.
  • the evaporator 320 is provided with a cooling line through which the refrigerant circulates, and the refrigerant circulates through the cooling line to ice the ice making water supplied to the evaporator 320.
  • the evaporator 320 of the second embodiment has a plate shape. When the ice making water supplied to the surface of the plate-shaped evaporator 320 reaches a freezing point, ice adheres to the surface of the evaporator 320, and then the ice is gradually enlarged to make ice. This is done.
  • the ice-making water that has not been de-iced is circulated to the ice-making water reservoir 310 positioned below the evaporator 320.
  • the ice making water entering the ice making reservoir 310 is supplied to the evaporator 320 by the pump 330 again.
  • the pump 330 is located in the receiving space inside the ice making tank 310, and supplies the ice making water stored in the ice making reservoir 310 to the evaporator 320 disposed above the ice making reservoir 310. do.
  • the temperature sensor 350 is located in the receiving space inside the ice making tank 310, and measures the temperature of the ice making water stored in the ice making reservoir 310.
  • the vibrator 355 is positioned below the receiving space inside the ice making tank 310 and generates ultrasonic waves in the ice making tank 310 through the vibrator 355.
  • the controller 360 serves to prevent the slush from occurring in the ice-making water reservoir 310 or to quickly remove the slush generated. To this end, the controller 360 derives a control time point at which the slush is expected to occur in the ice making water reservoir 310, and controls the vibrator 355 to generate an ultrasonic wave in the ice making water reservoir 310 at this control time. .
  • the controller 360 When ultrasonic waves are generated in the ice making tank 310 through the vibrator 355, the kinetic energy of the ice making water in the ice making tank 310 is increased to prevent the occurrence of slush in the ice making tank 310 or the generated slush is prevented. Quickly removed.
  • the control time point is derived based on the temperature of the ice making water measured by the temperature sensor 350.
  • the control point corresponds to the point in time when the temperature sensor 350 reaches the second temperature when the temperature sensor 350 reaches the first temperature and reaches the second temperature lower than the first temperature within the first time. .
  • the time point when the temperature sensor 350 reaches the first temperature and the first time elapses is set in advance.
  • the time point when the temperature sensor 350 reaches the first temperature and the first time elapses is set in advance.
  • the time point when the temperature sensor 350 does not reach the first temperature within a second time longer than the first time after the pump 330 operates the time point when the second time elapses after the pump 330 operates is controlled.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • FIG. 4 is a flowchart schematically illustrating an example of a process of a method of preventing the slush from occurring or quickly removing the slush caused by the ice maker 300 according to the second embodiment.
  • the controller 360 In order to prevent slush from occurring in the ice making tank 310 during ice making, first, the controller 360 measures the temperature through a temperature sensor 350 that measures the temperature of the ice making water in the ice making tank 310. Check whether it reaches 0 ° C (S420). If the temperature measured by the temperature sensor 350 reaches 0 ° C., the controller 360 calculates a time elapsed since reaching 0 ° C. (S430). In addition, the controller 360 checks whether 1 minute has elapsed since reaching 0 ° C. (S440).
  • the controller 360 measures the temperature of the temperature sensor 350 measuring the temperature of the ice making water in the ice making reservoir 310 and then -1. When the temperature reaches 350 ° C. (S450), if the temperature measured by the temperature sensor 350 reaches ⁇ 1 ° C. before 1 minute has elapsed since reaching 0 ° C., the controller 360 controls the vibrator 355 at that time. Ultrasonic waves are generated in the ice making tank 310 (S460).
  • the control unit 360 controls the temperature sensor ( When the temperature of 350 reaches 0 ° C. and one minute has elapsed, the vibrator 355 is controlled to generate ultrasonic waves in the ice making tank 310 (S460).
  • the controller 360 calculates the time elapsed after the operation of the pump 330 After that, it is checked whether 10 minutes have elapsed (S470), and when the temperature of the temperature sensor 350 does not reach 0 ° C. after 10 minutes has elapsed after the operation of the pump 330, the controller 360 controls the vibrator 355. By controlling the to generate an ultrasonic wave in the ice-making reservoir 310 (S460).
  • the controller 360 derives an additional control point in which an additional slush is expected to be generated. can do.
  • the controller 360 controls the vibrator 355 so that ultrasonic waves are generated in the ice making tank 310 at this additional control point.
  • the additional control point is derived based on the temperature of the ice making water measured by the temperature sensor 350 similarly to the control point.
  • the additional control point corresponds to the point in time when the temperature sensor 350 reaches the second temperature when the temperature sensor 350 reaches the first temperature and reaches the second temperature lower than the first temperature within the first time. do.
  • the time point when the temperature sensor 350 reaches the first temperature and the first time elapses is set in advance.
  • the time when the second time elapses from the control time corresponds to the additional control time.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • the controller 360 may derive the time point at which the slush is expected to occur several times, and prevent the slush from being generated or quickly remove the generated slush by supplying water at room temperature at that time.
  • FIG. 5 is a view schematically showing a third embodiment of an ice maker according to the present invention.
  • the ice maker 500 of the third embodiment may include an ice maker 510, an evaporator 520, a pump 530, an ice maker valve 540, a temperature sensor 550, and a heater 555. And a control unit 560.
  • the flow of the ice making water is indicated by the arrow.
  • the ice making tank 510 has an accommodation space in which ice making water can be stored. Ice making water is water for making ice, ice making water is supplied into the ice-making water reservoir 510 through the ice-making water supply pipe 515, and the ice-making water is supplied through the ice-making water supply valve 540. An upper limit sensor 570 and a lower limit sensor 575 are installed inside the ice maker 510, and an appropriate amount of ice maker is used in the ice maker 510 using the sensors 570 and 575. To be supplied.
  • the evaporator 520 is disposed above the ice making tank 510 and ice-making water supplied from the ice making tank 510 through the pump 530.
  • the evaporator 520 is formed with a cooling line through which the refrigerant circulates, and the refrigerant circulates through the cooling line to ice the ice making water supplied to the evaporator 520.
  • the evaporator 520 of the third embodiment is in the form of a plate. When the ice making water supplied to the surface of the plate-shaped evaporator 520 reaches a freezing point, ice adheres to the surface of the evaporator 520, and then the ice is gradually expanded to make ice. This is done.
  • the ice-making water that is not iced is circulated to the ice-making water reservoir 510 located under the evaporator 520.
  • the ice making water entering the ice making reservoir 510 is again supplied to the evaporator 520 by the pump 530.
  • the pump 530 is located in an accommodation space inside the ice making tank 510 and supplies the ice making water stored in the ice making tank 510 to the evaporator 520 disposed above the ice making tank 510. do.
  • the temperature sensor 550 is located in the accommodation space inside the ice making tank 510 and measures the temperature of the ice making water stored in the ice making tank 510.
  • the heater 555 is located in the receiving space inside the ice making tank 510 and raises the temperature of the ice making water in the ice making tank 510 through the heater 555.
  • the controller 560 serves to prevent the slush from occurring in the ice-making water reservoir 510 or to quickly remove the slush generated. To this end, the controller 560 derives a control time point at which the slush is expected to occur in the ice making water reservoir 510, and at this control time, the heater 555 to raise the temperature of the ice making water in the ice making water reservoir 510. To control. When the temperature of the ice making water in the ice making water reservoir 310 is increased through the heater 555, slush is prevented from occurring in the ice making water reservoir 510 or the generated slush is quickly removed.
  • the control time point is derived based on the temperature of the ice making water measured by the temperature sensor 550.
  • the control point corresponds to the point in time when the temperature sensor 550 reaches the second temperature when the temperature sensor 550 reaches the first temperature and reaches the second temperature lower than the first temperature within the first time. .
  • the time point when the temperature sensor 550 reaches the first temperature and the first time elapses is set in advance.
  • the time point when the second time elapses after the pump 530 operates is controlled.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • FIG. 6 is a flowchart schematically illustrating an example of a process of a method of preventing the slush from occurring or quickly removing the slush generated by the ice maker 500 according to the third embodiment.
  • the ice making water supply valve 540 is turned off. De-icing is started in a state in which water is not supplied into the ice-making water reservoir 510 (S610).
  • the controller 560 In order to prevent slush in the ice-making water reservoir 510 during ice making, first, the controller 560 measures the temperature through a temperature sensor 550 that measures the temperature of the ice-making water in the ice-making water reservoir 510. Check whether it reaches 0 ° C (S620). If the temperature measured by the temperature sensor 550 reaches 0 ° C., the controller 560 calculates a time that has elapsed since reaching 0 ° C. (S630). The controller 560 checks whether 1 minute has elapsed since reaching 0 ° C. (S640).
  • the controller 560 measures the temperature of the temperature sensor 550 that measures the temperature of the ice making water in the ice making reservoir 510 and then measures -1. Check whether the temperature reaches (° C.) (S650). If the temperature measured by the temperature sensor 550 reaches -1 ° C. before 1 minute has elapsed since reaching 0 ° C., the controller 560 operates the heater 555 at that time. The temperature of the ice making water in the ice making storage 510 is increased (S660).
  • the control unit 560 controls the temperature sensor ( When the temperature of 550 reaches 0 ° C. and 1 minute has elapsed, the heater 555 is operated to increase the temperature of the ice making water in the ice making reservoir 510 (S660).
  • the controller 560 calculates an elapsed time after the pump 530 is operated. After that, it is checked whether 10 minutes have elapsed (S670), and when the temperature of the temperature sensor 550 does not reach 0 ° C. after 10 minutes has elapsed after the operation of the pump 530, the controller 560 is connected to the heater 555. Operate to increase the temperature of the ice-making water in the ice-making reservoir (510) (S660).
  • the temperature of the ice-making water in the ice-making water reservoir 510 is measured, and the instant of slush is generated and the heater 555 is operated at this moment to operate the temperature of the ice-making water in the ice-making water reservoir 510.
  • the slush-prevention effect is remarkably excellent compared to water supply by randomly selecting a specific time point. Through this, it is possible to make ice of high quality transparent ice, and since the ice is formed in all parts of the evaporator 520, the yield increases.
  • the controller 560 raises the temperature of the ice-making water in the ice-making water reservoir 510 through the heater 555 at the control point through the process illustrated in FIG. 6, the controller 560 additionally predicts that slush will be generated. A viewpoint can be derived.
  • the controller 560 controls the heater 555 such that the temperature of the ice making water in the ice making water reservoir 510 is increased at this additional control point.
  • the additional control time point is derived based on the temperature of the ice making water measured by the temperature sensor 550 similarly to the control time point.
  • the additional control point corresponds to the point in time when the temperature sensor 550 reaches the second temperature when the temperature sensor 550 reaches the first temperature and reaches the second temperature lower than the first temperature within the first time. do.
  • the time point when the temperature sensor 550 reaches the first temperature and the first time elapses is set in advance.
  • the time when the second time elapses from the control time corresponds to the additional control time.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • the controller 560 may derive a time point at which the slush is expected to occur several times, and may prevent the slush from being generated or quickly remove the generated slush by supplying water at room temperature at that time.
  • FIG. 7 is a view schematically showing a fourth embodiment of an ice maker according to the present invention.
  • the ice maker 700 includes an ice maker 710, an evaporator 720, a pump 730, an ice maker valve 740, a temperature sensor 750, and a controller 760. It is provided. In the ice maker 700 of the fourth embodiment, the flow of the ice making water is indicated by the arrow.
  • the ice making tank 710 has an accommodation space in which ice making water can be stored. Ice making water is water for making ice, ice making water is supplied into the ice-making water reservoir 710 through the ice-making water supply pipe 715, and ice-making water is supplied through the ice-making water supply valve 740.
  • An upper limit detection sensor 770 and a lower limit detection sensor 775 are installed inside the ice making reservoir 710, and an appropriate amount of ice making water in the ice making reservoir 710 using the detection sensors 770 and 775. To be supplied.
  • the evaporator 720 is disposed above the ice making tank 710 and ice-making water supplied from the ice making tank 710 through the pump 730.
  • the evaporator 720 is provided with a cooling line through which the refrigerant circulates, and the refrigerant circulates through the cooling line to ice the ice making water supplied to the evaporator 720.
  • the evaporator 720 of the fourth embodiment has a plate shape. When the ice making water supplied to the surface of the plate-shaped evaporator 720 reaches a freezing point, ice adheres to the surface of the evaporator 720, and then the ice is gradually enlarged to make ice. This is done.
  • the ice-making water that has not been de-iced is circulated to the ice-making water reservoir 710 located under the evaporator 720.
  • the ice making water entering the ice making reservoir 710 is again supplied to the evaporator 720 by the pump 730.
  • the pump 730 is located in the receiving space inside the ice making tank 710, and supplies the ice making water stored in the ice making tank 710 to the evaporator 720 disposed above the ice making tank 710. do.
  • the temperature sensor 750 is located in the receiving space inside the ice making water reservoir 710 and measures the temperature of the ice making water stored in the ice making water reservoir 710.
  • the control unit 760 serves to prevent the occurrence of slush in the ice-making water reservoir 710 or to quickly remove the generated slush. To this end, the controller 760 derives a control time point at which the slush is expected to occur in the ice making water reservoir 710, suspends the operation of the pump 730 at this control time, and supercools the evaporator 720. .
  • the evaporator 720 may be subcooled using a cooling line. When the operation of the pump 730 is stopped and the evaporator 720 is subcooled, most of the ice making water supplied to the evaporator 720 adheres to ice, and the ice making falls from the evaporator 720 and circulates to the ice making tank 710.
  • the controller 760 temporarily stops the operation of the pump 730 at the control time, supercools the evaporator 720, and controls the ice making water supply valve 740 so that water is supplied into the ice making tank 710. can do.
  • the water at this time may be water at room temperature.
  • the operation of the pump 730 is temporarily suspended, the evaporator 720 is supercooled, and when water at room temperature is supplied into the ice making tank 710, the temperature of the ice making water in the ice making tank 710 increases. The effect of preventing the slush from generating in the ice-water reservoir 710 is further increased or the generated slush is removed more quickly.
  • the control time point is derived based on the temperature of the ice making water measured by the temperature sensor 750.
  • the control point corresponds to the point in time when the temperature sensor 750 reaches the second temperature when the temperature sensor 750 reaches the first temperature and reaches the second temperature lower than the first temperature within the first time. .
  • the time point at which the first time elapses after the temperature sensor 750 reaches the first temperature is set in advance.
  • the time point at which the second time elapses after the pump 730 is operated is controlled.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • FIG. 8 is a flowchart schematically illustrating an example of a process of a method of preventing the slush from occurring or quickly removing the slush generated by the ice maker 700 according to the fourth embodiment.
  • the ice making water supply valve 740 is turned off. Deicing is started in a state where water is not supplied into the ice making tank 710 (S810).
  • the controller 760 measures the temperature through a temperature sensor 750 that measures the temperature of the ice making water in the ice making tank 710. Check whether it reaches 0 ° C (S820). When the temperature measured by the temperature sensor 750 reaches 0 ° C., the controller 760 calculates a time elapsed since reaching 0 ° C. (S830). In addition, the controller 760 checks whether 1 minute has elapsed since reaching 0 ° C. (S840).
  • the controller 760 measures the temperature of the temperature sensor 750 that measures the temperature of the ice making water in the ice making reservoir 710 and then measures -1. If the temperature reached by the temperature sensor 750 reaches -1 ° C before 1 minute has elapsed since reaching 0 ° C (S850), the controller 760 stops the operation of the pump 730 at that time. Suspend and supercool the evaporator 720 (S860). Although not shown in FIG. 8, the control unit 760 may additionally supply water at room temperature to the ice making reservoir 710 at this time.
  • the control unit 760 controls the temperature sensor ( When the temperature of 750 reaches 0 ° C. and 1 minute has elapsed, the operation of the pump 730 is suspended, and the evaporator 720 is supercooled (S860). Although not shown in FIG. 8, the control unit 760 may additionally supply water at room temperature to the ice making reservoir 710 at this time.
  • the controller 760 calculates an elapsed time after the operation of the pump 730. After that, it is checked whether 10 minutes have elapsed (S870), and when the temperature of the temperature sensor 750 does not reach 0 ° C. after 10 minutes has elapsed after the operation of the pump 730, the control unit 760 pumps 730. Suspends the operation of the evaporator 720 to supercool (S860). Although not shown in FIG. 8, the control unit 760 may additionally supply water at room temperature to the ice making reservoir 710 at this time.
  • the slush-prevention effect is remarkably excellent compared to water supply by randomly selecting a specific time point. Through this, it is possible to ice the transparent ice of good quality, since the ice is formed in the entire portion of the evaporator 720, the yield is increased.
  • control unit 760 suspends the operation of the pump 730 and supercools the evaporator 720 at the control time point through the process illustrated and described with reference to FIG. can do.
  • controller 760 again suspends the operation of the pump 730 and supercools the evaporator 720.
  • the additional control time point is derived based on the temperature of the ice making water measured by the temperature sensor 750 similar to the control time point.
  • the additional control point corresponds to the point in time when the temperature sensor 750 reaches the second temperature when the temperature sensor 750 reaches the first temperature and reaches the second temperature lower than the first temperature within the first time. do.
  • the time point at which the first time elapses after the temperature sensor 750 reaches the first temperature is set in advance.
  • the time when the second time elapses from the control time corresponds to the additional control time.
  • the first temperature may be 0 ° C.
  • the second temperature may be ⁇ 1 ° C.
  • the first time may be 1 minute
  • the second time may be 10 minutes.
  • control unit 760 may derive a time point at which the slush is expected to occur several times, and temporarily suspend the operation of the pump 730 at that time and prevent the slush from occurring by supercooling the evaporator 720.
  • the generated slush can be removed quickly.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Production, Working, Storing, Or Distribution Of Ice (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne une machine à glaçons capable d'empêcher la formation de glace-neige mouillée. La machine à glaçons selon la présente invention calcule un moment de commande auquel il est prédit qu'une glace-neige mouillée serait générée sur la base de la température de l'eau dans un réservoir d'eau, empêchant ainsi la formation de glace-neige mouillée ou l'élimination de la glace-neige mouillée générée au moment de commande.
PCT/KR2018/002573 2017-03-06 2018-03-05 Machine à glaçons WO2018164428A1 (fr)

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US16/551,723 US20190383541A1 (en) 2017-03-06 2019-08-27 Icemaker

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KR1020170028315A KR101867094B1 (ko) 2017-03-06 2017-03-06 제빙기
KR10-2017-0028315 2017-03-06

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WO2020071791A1 (fr) * 2018-10-02 2020-04-09 엘지전자 주식회사 Réfrigérateur et procédé de commande associé
KR102664673B1 (ko) * 2018-10-02 2024-05-10 엘지전자 주식회사 제빙기 및 이를 포함하는 냉장고
KR102706719B1 (ko) * 2018-10-02 2024-09-19 엘지전자 주식회사 제빙기 및 이를 포함하는 냉장고
CN112503815A (zh) * 2020-11-18 2021-03-16 合肥美菱物联科技有限公司 一种具有超声波辅助冷冻功能的制冰机及其控制方法

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KR940001568Y1 (ko) * 1991-10-26 1994-03-19 주식회사 금성사 제빙용 자동 급수부의 결빙방지장치
JPH10281603A (ja) * 1997-04-01 1998-10-23 Manitowoc Foodservice Group Inc 製氷機及びその制御方法
JP2003056952A (ja) * 2001-08-15 2003-02-26 Hoshizaki Electric Co Ltd 製氷機
JP2010230177A (ja) * 2009-03-25 2010-10-14 Hoshizaki Electric Co Ltd 自動製氷機
JP2017032172A (ja) * 2015-07-29 2017-02-09 ホシザキ株式会社 製氷装置

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US5653114A (en) * 1995-09-01 1997-08-05 Nartron Corporation Method and system for electronically controlling the location of the formation of ice within a closed loop water circulating unit
JP4288795B2 (ja) * 1999-10-26 2009-07-01 株式会社Ｉｈｉ 氷蓄熱装置

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KR940001568Y1 (ko) * 1991-10-26 1994-03-19 주식회사 금성사 제빙용 자동 급수부의 결빙방지장치
JPH10281603A (ja) * 1997-04-01 1998-10-23 Manitowoc Foodservice Group Inc 製氷機及びその制御方法
JP2003056952A (ja) * 2001-08-15 2003-02-26 Hoshizaki Electric Co Ltd 製氷機
JP2010230177A (ja) * 2009-03-25 2010-10-14 Hoshizaki Electric Co Ltd 自動製氷機
JP2017032172A (ja) * 2015-07-29 2017-02-09 ホシザキ株式会社 製氷装置

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