WO2022142778A1 - 具有冷冻储物装置的冰箱 - Google Patents

具有冷冻储物装置的冰箱 Download PDF

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Publication number
WO2022142778A1
WO2022142778A1 PCT/CN2021/130608 CN2021130608W WO2022142778A1 WO 2022142778 A1 WO2022142778 A1 WO 2022142778A1 CN 2021130608 W CN2021130608 W CN 2021130608W WO 2022142778 A1 WO2022142778 A1 WO 2022142778A1
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WIPO (PCT)
Prior art keywords
storage
refrigerator
storage box
magnetic field
electromagnetic coils
Prior art date
Application number
PCT/CN2021/130608
Other languages
English (en)
French (fr)
Inventor
李孟成
朱小兵
费斌
刘浩泉
赵斌堂
王霁昀
Original Assignee
青岛海尔电冰箱有限公司
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 青岛海尔电冰箱有限公司, 海尔智家股份有限公司 filed Critical 青岛海尔电冰箱有限公司
Priority to EP21913521.7A priority Critical patent/EP4253886A4/en
Priority to JP2023539848A priority patent/JP2024501687A/ja
Priority to US18/270,453 priority patent/US20240060702A1/en
Publication of WO2022142778A1 publication Critical patent/WO2022142778A1/zh

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    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04Preventing the formation of frost or condensate
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/001Details of apparatus, e.g. for transport, for loading or unloading manipulation, pressure feed valves
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/32Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with electric currents without heating effect
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36Freezing; Subsequent thawing; Cooling
    • A23L3/363Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in form of powder, granules, or flakes
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/12Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00Charging, supporting, and discharging the articles to be cooled
    • F25D25/005Charging, supporting, and discharging the articles to be cooled using containers
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00Charging, supporting, and discharging the articles to be cooled
    • F25D25/02Charging, supporting, and discharging the articles to be cooled by shelves
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/005Mounting of control devices
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36Freezing; Subsequent thawing; Cooling
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2500/00Problems to be solved
    • F25D2500/06Stock management
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00Control issues
    • F25D2600/04Controlling heat transfer
    • 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
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/12Sensors measuring the inside temperature
    • F25D2700/122Sensors measuring the inside temperature of freezer compartments

Definitions

  • the present invention relates to a refrigerating and freezing storage device, in particular to a refrigerator with a freezing storage device.
  • An object of the present invention is to provide a freezing control method and a refrigerator for a refrigerator that can effectively improve the quality of frozen storage.
  • a further object of the present invention is to adapt the magnetic field to the requirements of refrigeration and preservation.
  • the present invention provides a refrigerator with a refrigerated storage device, which includes: a box body, in which a storage compartment for realizing the function of refrigerated storage is provided; the refrigerated storage device is arranged in the storage compartment, It also includes: a storage box, which defines a frozen storage space; a storage detection device, which is arranged in the storage box and configured to detect the state of storage in the frozen storage space; The outer side of the storage box is configured to determine a corresponding applied magnetic field mode according to the state of the stored items, and the applied magnetic field mode includes: stopping generating a magnetic field, activating some of the multiple sets of the electromagnetic coils, and starting all the multiple sets of the electromagnetic coils.
  • each group of electromagnetic coils includes: a first coil disposed opposite to the top of the storage box and a second coil disposed at the bottom of the storage box, the first coil and the second coil are connected in series or in parallel.
  • the above-mentioned refrigerated storage device further includes: a magnetic frame, made of magnetic material, sleeved on the outside of the storage box, and configured to make the magnetic field pass through the magnetic frame to complete a closed loop of magnetic lines of force.
  • a plurality of first bosses spaced along the lateral direction of the storage box are formed on the inner side of the top wall of the magnetic frame, and each first boss is used for arranging the first coils of a group of electromagnetic coils; the magnetic frame The inner side of the bottom wall is formed with second bosses arranged opposite to the first bosses, and each second boss is used for arranging the second coils of a group of electromagnetic coils.
  • the storage box includes: an outer cylinder, which is arranged in the space enclosed by the magnetic frame and has a forward opening; and a drawer, which is detachably arranged in the outer cylinder.
  • an air inlet and an air return port are opened on the rear wall of the outer cylinder, and the air inlet is used to connect the air supply air duct of the refrigerator or the evaporator of the refrigerator, so as to introduce the cooling air into the storage box; the air return port is used to connect the refrigerator.
  • the return air duct of the refrigerator or the evaporator of the refrigerator is connected to return the heat-exchanged airflow to the return air duct or the evaporator of the refrigerator.
  • the above-mentioned refrigerator with a refrigerated storage device further includes: an opening and closing detector, wherein the opening and closing detector is configured to detect the opening and closing state of the storage box; the storage detection device is also configured to detect the refrigerated storage space
  • the storage box is refrigerated by down-starting; and the electromagnetic coil whose magnitude of change in the internal temperature of the corresponding area is greater than the first set threshold is started to release the magnetic field.
  • the magnetic pole directions of the two sets of electromagnetic coils are set to be opposite.
  • the electromagnetic coil is activated, if the internal temperature of the corresponding area cools down to the second set threshold, the magnetic field is stopped to be generated.
  • the refrigeration controller is further configured to stop the refrigeration of the storage box after the internal temperature of the corresponding areas of the two sets of electromagnetic coils cools down to the third set threshold, and according to the preset refrigeration start conditions and The refrigerated off condition performs conventional freezing control of the storage box to maintain the refrigerated storage environment of the storage box; the third set threshold is lower than the second set threshold.
  • the refrigerated storage device is provided with multiple sets of electromagnetic coils on the outside of the storage box, and the multiple sets of electromagnetic coils are determined according to the state of the stored items in the refrigerated storage space detected by the storage detection device.
  • the applied magnetic field mode makes the magnetic field in the frozen storage space suitable for the freezing and refrigeration process. On the one hand, it improves the quality of frozen storage and meets the user's storage quality requirements for precious ingredients. On the other hand, the heating of the electromagnetic coil and the effect of magnetization on the outer parts of the refrigerated storage device are also reduced by the targeted adjustment.
  • the refrigerator with the refrigerating storage device of the present invention also provides a closed path of the magnetic force line through the magnetic frame, and provides an assembly structure for the electromagnetic coil, which reduces the occupied space and improves the practicability.
  • the refrigerator with the refrigerating storage device of the present invention can be provided with even groups of electromagnetic coils, for example, two groups of electromagnetic coils.
  • the magnetic field mode in which the two sets of coils are activated at the same time by setting the magnetic pole directions of the magnetic fields to be opposite, the magnetic field lines can be made more uniform, and the external magnetization can be canceled or reduced.
  • the internal temperature changes before and after each area of the storage box is opened and closed are obtained, and the change in the internal temperature of each area is determined.
  • the corresponding applied magnetic field mode is turned on to form a suitable magnetic field, so that the ingredients are frozen in the magnetic field environment, and the growth of ice crystal nuclei is inhibited, so that the growth rate of ice crystals is higher than the migration of water molecules.
  • the resulting ice crystals are relatively small, thereby reducing damage to cells, avoiding juice loss, ensuring better taste of ingredients, improving the quality of frozen storage, and meeting users' storage quality requirements for precious ingredients.
  • the refrigerator with the refrigerating storage device of the present invention has improved the opening and closing conditions of the electromagnetic field, and the magnetic field is applied during the period when the ice crystals are mainly formed, which improves the use efficiency of the magnetic field, and on the one hand reduces the magnetic field for the storage box.
  • FIG. 1 is a schematic perspective view of a refrigerator with a freezer storage device according to one embodiment of the present invention
  • FIG. 2 is a schematic diagram of a freezer storage device of a refrigerator with a freezer storage device according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of the cooperation between a magnetic frame and a storage box in a refrigerator with a freezer storage device according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a magnetic frame in a refrigerator with a freezer storage device according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of an outer cylinder of a storage box in a refrigerator with a freezer storage device according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of an electromagnetic coil in a refrigerator with a refrigerated storage device according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a magnetic field formed in a freezer storage device of a refrigerator with a freezer storage device according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of another magnetic field formed in a freezer storage device of a refrigerator with a freezer storage device according to an embodiment of the present invention.
  • FIG. 9 is a block diagram of a control system of a refrigerator with a refrigerated storage device according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a freezing control method of a refrigerator with a freezing storage device according to an embodiment of the present invention.
  • the refrigerator 10 of this embodiment may generally include a box body 120, a door body 110, and a refrigeration system (not shown in the figure).
  • the box body 120 may define at least one storage compartment whose front side is open, usually a plurality of storage compartments, such as a refrigerated storage compartment, a freezing storage compartment, a temperature-changing storage compartment, and the like.
  • the number and function of specific storage compartments can be configured according to pre-requirements.
  • the refrigerator 10 should at least have a refrigerated storage compartment or a temperature-variable storage compartment whose temperature can reach the freezing range (that is, it can be used to realize a refrigerated storage environment), that is, the box body 120 is provided with a refrigerated storage compartment for realizing refrigerated storage.
  • the temperature range for frozen storage can generally be set from -14°C to -22°C.
  • the refrigerator 10 of this embodiment may be an air-cooled refrigerator, and an air duct system is arranged in the box body 120, and the refrigerating air heat exchanged by the evaporator is sent to the storage compartment through the air supply port by the fan, and then the air is returned through the return air port. road. achieve refrigeration. Since the box body 120 , the door body 110 and the refrigeration system of this type of refrigerator are all known to those skilled in the art and are easy to implement, in order not to obscure and obscure the invention point of the present application, the box body 120 , the door body 110 will be discussed in the following text. . The refrigeration system itself will not be described in detail.
  • a refrigerated storage device 200 is arranged inside the refrigerated storage compartment.
  • the refrigerated storage device 200 forms an independently closed refrigerated storage space, which can improve the storage quality of the refrigerated storage space by means of a magnetic field.
  • a magnetic field Under the action of a certain strength of the magnetic field, in the freezing process, the free path of water molecules can be restricted, which is manifested as the breaking of hydrogen bonds in the water molecules. Because the growth of crystal nucleus is inhibited, the growth rate of ice crystals is higher than the migration rate of water molecules, and the resulting ice crystals are small, so the damage to cells is also small, the loss rate of juice is reduced, and the nutrition and taste of ingredients are better preserved.
  • the magnetic field can shorten the freezing time, which helps to suppress the number of microorganisms and bacteria.
  • the refrigerator 10 of this embodiment further improves the magnetic field in a targeted manner, and further improves the quality of frozen storage by optimizing the direction of the magnetic field and the start-stop time.
  • FIG. 2 is a schematic diagram of the freezer storage device 200 of the refrigerator 10 with the freezer storage device 200 according to one embodiment of the present invention
  • FIG. 3 is a magnetic frame in the refrigerator 10 with the freezer storage device 200 according to one embodiment of the present invention
  • Fig. 4 is a schematic diagram of the magnetic frame 210 in the refrigerator 10 with the freezing storage device 200 according to an embodiment of the present invention
  • Fig. 5 is a schematic diagram of an outer cylinder 241 of a storage box 240 in a refrigerator 10 with a freezer storage device 200 according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a refrigerator 10 with a freezer storage device 200 according to an embodiment of the present invention
  • a schematic diagram of the electromagnetic coil 230 A schematic diagram of the electromagnetic coil 230 .
  • the refrigerated storage device 200 is arranged in the storage compartment, and generally may include: a plurality of sets of electromagnetic coils 230 , a storage box 240 , a storage detection device 250 , and the like.
  • the storage box 240 can form an independently sealed frozen storage space, so as to provide a better frozen storage environment for specific ingredients.
  • the storage box 240 is disposed in the space enclosed by the magnetic frame 210 .
  • the storage box 240 may include: an outer cylinder 241 and a drawer 242 .
  • the outer cylinder 241 is disposed in the magnetic frame 210 and has a forward opening.
  • the drawer 242 is provided in the outer cylinder 241 in a drawable manner.
  • the front panel of the drawer 242 may form a sealing structure with the outer cylinder 241 .
  • the rear wall of the outer cylinder 241 is provided with an air inlet 243 and an air return port 244 , and the air inlet 243 is used to connect to the air duct air outlet of the refrigerator 10 or to the evaporator of the refrigerator 10 .
  • the air return port 244 is used to connect to the air duct return port of the refrigerator 10 or to the evaporator of the refrigerator 10 (for example, to the bottom of the evaporator) area) to return the heat-exchanged airflow to the return air duct or the evaporator of the refrigerator 10 .
  • the air inlet 243 and the air return port 244 may be provided with dampers (not shown in the figure). Controlled opening of the damper during cooling supply.
  • the air inlet 243 and the air return port 244 can be configured according to the air duct of the air-cooled refrigerator, and the position and structure of the evaporator.
  • the storage detection device 250 is disposed in the storage box 240 and configured to detect the storage state of the storage in the refrigerated storage space.
  • the storage detection device 250 can be an infrared sensor that can scan the temperature distribution in the refrigerated storage space of the storage box 240, or can be a plurality of independent infrared sensors (each infrared sensor is used to detect the temperature distribution in a certain area of the refrigerated storage space. temperature).
  • the storage detection device 250 can obtain the internal temperature change of each position in the refrigerated storage space by detecting.
  • the storage detection device 250 may be disposed inside the top wall of the outer cylinder 241 .
  • Multiple sets of electromagnetic coils 230 are laterally arranged on the outside of the storage box 240, and are configured to determine a corresponding applied magnetic field mode according to the state of the stored items. Solenoid is activated, and all solenoids are activated. The applied magnetic field mode of the electromagnetic coil 230 may be adjusted according to the detection result of the storage detection device 250 .
  • each set of electromagnetic coils 230 may include: a first coil 231 oppositely disposed on the top of the storage box and a second coil 232 disposed at the bottom of the storage box 240, respectively, the first coil 231 and the second coil 232 connected in series or in parallel.
  • the first coil 231 and the second coil 232 in each group of electromagnetic coils 230 start and stop simultaneously, thereby forming a magnetic field in the refrigerated storage space between the first coil 231 and the second coil 232 .
  • the entire refrigerated storage space can be covered with multiple sets of electromagnetic coils 230 .
  • an even group of electromagnetic coils 230 may optionally be used.
  • two sets of electromagnetic coils 230 may be selected, corresponding to the left half and the right half of the storage box 240 respectively.
  • the electromagnetic coil 230 on the left can be activated; when it is detected that new ingredients are placed in the right half of the storage box 240, the electromagnetic coil 230 on the right can be activated.
  • the magnetic pole directions of the two sets of electromagnetic coils 230 can be set to be opposite, which can make the magnetic lines of force more uniform, and can cancel or reduce the external magnetization. Since the applied magnetic field mode can be flexibly adjusted, the magnetic field in the frozen storage space can be made suitable for the freezing and refrigeration process.
  • the refrigerator 10 of this embodiment may also be provided with a magnetic frame 210 .
  • the magnetic frame 290 is made of magnetic material, is sleeved on the outside of the storage box 240 , and is configured so that the magnetic field passes through the magnetic frame 210 to complete a closed loop of magnetic lines of force.
  • the magnetic material can be a soft magnetic material or a hard magnetic material, for example, a soft magnetic material can be used.
  • the soft magnetic material is characterized by low coercivity and high magnetic permeability.
  • the magnetic frame 210 can be used to gather the magnetic field and reduce the release of the magnetic field to the outside. , to reduce interference to other components outside the refrigerated storage device 200 (eg, magnetize other components, etc.).
  • the inner side of the top wall of the magnetic frame 210 is formed with a plurality of first bosses 211 spaced along the lateral direction of the storage box 240, and each first boss 211 is used for arranging the first coils 231 of a group of electromagnetic coils;
  • the inner side of the bottom wall of the magnetic frame 210 is formed with second bosses 212 opposite to the first bosses 211 , and each second boss 212 is used for arranging a second coil 232 of a group of electromagnetic coils. That is, the first coil 231 is sleeved on the outer periphery of the first boss 211 , and the second coil 232 is sleeved on the outer periphery of the second boss 212 .
  • the number of the first bosses 211 and the second bosses 212 may be two.
  • the magnetic frame 210 may be a square cylindrical body with a through opening in the front-rear direction, that is, a frame body with a curved cross-section.
  • the front and rear ends of the square cylinder body respectively have through openings for arranging various types of storage boxes 240 .
  • the top wall and the bottom wall of the magnetic frame 210 are respectively formed with a first boss 211 and a second boss 212 .
  • the first boss 211 and the second boss 212 respectively provide mounting structures for the first coil 231 and the second coil 232 .
  • the magnetic frame 210 provides a closed path for the magnetic force lines, and provides an assembly structure for the electromagnetic coil 230, which reduces the occupied space and improves the practicability.
  • the cross section of the first boss 211 and the second boss 212 can be square, circular or oval. When a square cross section is used, the first boss 211 and the second boss 212 are more convenient to fit with the box 120 structure. .
  • the shape of the inner circumference of the first coil 231 and the second coil 232 is adapted to the outer circumference of the corresponding first boss 211 and the second boss 212 , and is set to be square, circular or elliptical accordingly.
  • the first coil 231 and the second coil 232 are mirror images.
  • the first coil 231 and the second coil 232 can be formed in a flat box shape and wound in the circumferential direction, so that the magnetic pole direction of the magnetic field generated after power-on is perpendicular to the first boss 211 and the second boss 212 .
  • the heights of the first boss 211 and the second boss 212 can be adapted to the thicknesses of the first coil 231 and the second coil 232 , so that the inner walls of the ring-shaped frame are substantially flush, so that the storage box 240 can be arranged.
  • the first coil 231 and the second coil 232 may be formed as flat elliptical rings or circular rings.
  • the magnetic frame 210 is used to guide the magnetic field generated by the electromagnetic coil 230, so as to avoid uneven magnetic field and affect other components outside the storage box 240, so that the electromagnetic coil 230 can form a uniform and strong enough in the refrigerated storage space to meet the requirements of improving the freezing performance. Magnetic field required for storage mass.
  • the magnetic field arrangement structure in which the first coil 231 and the second coil 232 are respectively arranged in the two sets of electromagnetic coils 230 can meet various control requirements of the magnetic field assisted refrigeration, and the magnetic field type is more flexible.
  • those skilled in the art can set more sets of electromagnetic coils 230 .
  • the magnetic pole directions of the two sets of electromagnetic coils 230 are set to be opposite, so that the magnetic lines of force are more uniform, and the external magnetization can be canceled or reduced.
  • Each set of electromagnetic coils 230 can be independently controlled to achieve various modes of applied magnetic field.
  • FIG. 7 and 8 are respectively schematic diagrams of a magnetic field formed in a freezer storage device of a refrigerator with a freezer storage device according to an embodiment of the present invention, wherein the magnetic field in FIG. 7 is generated when two sets of electromagnetic coils 230 are activated at the same time, It can be applied to the situation where a magnetic field is needed to assist freezing and fresh-keeping in most areas of the frozen storage space.
  • the magnetic pole directions of the two sets of electromagnetic coils 230 are set to be opposite, and the magnetic fields generated by the two sets of coils 230 are superimposed on each other to reduce the leakage of external magnetic fields.
  • the effective magnetic flux density generated under the unit current is more, which is beneficial to reduce the heat generation of the coil 230 . Since the outer magnetic fields generated by the two sets of coils are superimposed on each other, the magnetic frame 210 can be eliminated, and the magnetic flux density in the refrigerated storage space is not affected, thereby saving the cost of the magnetic field preservation device.
  • the electromagnetic coil 230 on that side may only be activated. This is especially true for the wider drawers of the freezer compartment of a French refrigerator. Because the entire refrigerated storage space is relatively wide, only one side of the electromagnetic coil is activated by detecting the storage state, which saves power consumption and reduces the heating of the coil.
  • the magnetic field in FIG. 8 is generated when the left electromagnetic coil 230 is activated, and can be applied to the situation where a magnetic field is required to assist the freezing and fresh-keeping in the left area of the freezing storage space. Similarly, if the area on the right side of the refrigerated storage space needs a magnetic field to assist in refrigerated preservation, the right electromagnetic coil 230 can be activated.
  • the refrigerator 10 of this embodiment combines the magnetic field control of the electromagnetic coil 230 with the refrigeration control to ensure that the food is frozen in the magnetic field environment and achieve the effect of keeping fresh and freezing.
  • 9 is a block diagram of a control system of a refrigerator 10 with a refrigerated storage device 200 according to an embodiment of the present invention, and the refrigerator 10 is further provided with a storage detection device 250 , an opening and closing detector 270 , and a refrigeration controller 300 .
  • the storage detection device 250 is arranged in the outer cylinder 241 of the storage box 240, and is used to detect the temperature in the drawer 242, and further, it can be detected that the corresponding area of each group of electromagnetic coils 230 in the frozen storage space is opened when the storage box 240 is opened. Changes in internal temperature before and after being closed, such as detecting temperature changes in the left area of the freezer storage space and temperature changes in the right area.
  • the opening/closing detector 270 is configured to detect the opening/closing state of the drawer 242 . After the drawer 242 is pulled open and then closed, with the help of the storage detection device 250, it can be detected whether new ingredients are put in, or whether the original ingredients need to be re-frozen. Then, the electromagnetic coil 230 is cooperated with the refrigeration system, so that the magnetic field-assisted freezing can be realized, and the effect of freezing and fresh-keeping of the food can be improved.
  • the refrigeration controller 300 includes a memory 310 and a processor 320 .
  • a control program 311 is stored in the memory 310 , and when the control program 311 is executed by the processor 320 , is used to control the electromagnetic coil 230 and the refrigeration system, thereby realizing a corresponding refrigeration control method.
  • Various sensors provide detection means for magnetic field control, so as to meet the control requirements of the control method.
  • the refrigeration controller 300 may be configured to initiate refrigeration of the storage box 240 when the magnitude of the change in the internal temperature of the corresponding area of any group of electromagnetic coils before and after the storage box 240 is opened and closed is greater than the first set threshold.
  • the internal temperature change of the storage box 240 reflects the state of the stored food. If the internal temperature changes greatly, it means that new food is put into the storage box 240, or whether the temperature of the food has risen and needs to be re-frozen; If the change in internal temperature is small, the food may still be frozen. If the magnitude of the change in the internal temperature of a certain area in the refrigerated storage space is greater than the first set threshold, the refrigeration controller 300 starts to refrigerate the storage box 240 .
  • the first set threshold can be set to 2-8 degrees Celsius, which can be flexibly set according to the freezing set temperature. For example, the range of the temperature change in any of the left area or the right area of the freezing storage space is greater than the first set threshold, and the freezing and cooling is started.
  • the electromagnetic coils whose magnitudes of changes in the internal temperature of the corresponding area are greater than the first set threshold are simultaneously activated to release the magnetic field.
  • the auxiliary effect of the magnetic field can be used to achieve better freezing and storage quality of the stored items, and its sterilization effect is also better.
  • the above-mentioned starting conditions can also avoid the increase in heat generation and energy consumption caused by the long-term formation of the magnetic field, and on the other hand, it can also avoid the magnetization effect on other components outside the storage box 240 .
  • the electromagnetic coil 230 After the electromagnetic coil 230 is activated, if the internal temperature of the corresponding area is cooled to the second set threshold, the generation of the magnetic field will be stopped. As the freezing process continues, the magnetic field required for the auxiliary freezing will decrease accordingly. Turning off the electromagnetic coil 230 can To further reduce energy consumption, the second set threshold can be set to -10 to 12 degrees Celsius, within this temperature range, most of the stored items have been frozen.
  • the refrigeration controller 300 stops cooling the storage box 240, and the third set threshold is smaller than the second set threshold, which can be determined according to the storage box 240.
  • the freezer shutdown temperature setting set by the storage box 240 may generally be lower than the set freezer shutdown temperature. That is, after the magnetic field coil 230 completes its work, the freezing and cooling are delayed for a period of time and turned off. Since this cooling is performed after the storage box 240 is opened, setting the third set threshold to a lower value can achieve supercooling to a certain extent and improve the quality of frozen storage.
  • the refrigeration controller 300 After the refrigeration controller 300 stops refrigerating the storage box 240 , it may be further configured to: perform conventional refrigeration control on the storage box 240 according to the preset refrigeration start-up conditions and refrigeration shutdown conditions of the storage box 240 , so as to maintain the storage box 240 and the electromagnetic coil 230 may be configured to generate a magnetic field according to a preset opening and closing strategy during the conventional freezing control of the storage box 240 by the refrigeration controller 300 .
  • the normal freezing control of the storage box 240 is restored, that is, the freezing control of the storage box 240 is performed according to the preset cooling start condition and cooling shutdown condition of the storage box 240 .
  • the cooling start condition and the cooling off condition can also be set according to the set temperature of the storage box 240 , and the cooling starts when the temperature is higher than the cooling start temperature, and the cooling is stopped when the temperature is lower than the cooling off temperature.
  • a magnetic field may also be used to assist refrigeration, so as to avoid the deterioration of the storage quality when some ice crystals are regenerated.
  • An opening and closing strategy may be: the magnetic field is turned on and off at the same time as the cooling of the storage box 240 is turned on and off, that is, the magnetic field and the cooling are turned on and off at the same time.
  • Another alternative solution is to activate the magnetic field when starting the cooling of the storage box 240, and turn off the magnetic field before stopping the cooling of the storage box 240, that is, the magnetic field is only activated at the beginning of cooling. After the actual test, the storage quality of the magnetic field only started at the beginning of the cooling stage did not decrease significantly compared with the storage quality of the magnetic field and the cooling started and stopped at the same time.
  • another opening and closing strategy may be: in the process of performing freezing control on the storage box 240 according to the preset refrigeration start-up conditions and refrigeration shutdown conditions of the storage box 240, according to the set Periodically activate the magnetic field, that is, the magnetic field is activated periodically.
  • two sets of electromagnetic coils 230 can be made to generate magnetic fields alternately, for example, the left electromagnetic coil 230 is activated for the first time, and the right electromagnetic coil is activated for the second time. so cycle.
  • the step of turning on cooling the storage box 240 may include: opening an air inlet, and turning on a cooling airflow to the air inlet 243 .
  • FIG. 10 is a schematic diagram of a freezing control method of a refrigerator with a freezing storage device according to an embodiment of the present invention.
  • the process of this embodiment is a specific application example of the freezing control method for a refrigerator, in which the execution order of some steps can be adjusted.
  • the process can include:
  • Step S902 detecting the opening and closing state of the storage box 240;
  • Step S904 it is determined that the storage box 240 is closed after being opened, that is, it is determined whether an opening and closing event occurs in the storage box 240;
  • Step S906 acquire the internal temperature changes before and after the storage box 240 is opened, and determine whether the magnitude of the internal temperature change is greater than the first set threshold, that is, determine whether the storage box 240 has new food, or whether food is placed in the storage box 240.
  • the first set threshold can be set to 2 to 8 degrees Celsius. If the change in the internal temperature is small, the food may not need to be re-frozen, and the refrigeration of the frozen storage can be routinely controlled, that is, Refrigeration control is performed according to the set startup temperature threshold and shutdown temperature threshold.
  • step S908 the cooling is turned on, and air is supplied to the storage box 240,
  • Step S910 determine the area of the frozen storage space where the magnitude of the internal temperature change is greater than the first set threshold, and activate the electromagnetic coil 230 corresponding to this area; the magnitude of the internal temperature change in the left area of the frozen storage space is greater than the first
  • the threshold is set, the left electromagnetic coil 230 is activated in the applied magnetic field mode; when the magnitude of the internal temperature change in the right region of the frozen storage space is greater than the first set threshold, the magnetic field applied mode is activated for the right electromagnetic coil 230; If the amplitudes of the internal temperature changes in the left and right regions of the refrigerated storage space are both greater than the first set threshold, the mode of applying the magnetic field is that the electromagnetic coils on both sides are activated at the same time.
  • Step S912 continuously detect the internal temperature of the storage box 240;
  • Step S914 judging whether the internal temperature of the storage box 240 is lower than the second set threshold (for example, it can be set to -10-12 degrees Celsius), that is, judging whether the basic freezing stage is completed;
  • the second set threshold for example, it can be set to -10-12 degrees Celsius
  • Step S916 turning off the magnetic field
  • Step S920 determine whether the internal temperature of the storage box 240 is lower than a third set threshold, and the third set threshold is less than the second set threshold, which can be set according to the freezer shutdown temperature set by the storage box 240, which can generally be lower. at the set freezer shutdown temperature.
  • Step S922 stop refrigerating the storage box 240 and perform conventional refrigeration control on the storage box 240 according to the preset refrigeration start-up conditions and refrigeration shutdown conditions of the storage box 240, so as to maintain the refrigerated storage environment of the storage box 240;
  • the magnetic field is activated according to a preset on-off strategy.
  • the refrigerator 10 with the refrigerating storage device in this embodiment makes the food frozen in the magnetic field environment, and the direction and start and stop of the magnetic field are controlled in a targeted manner to preferentially inhibit the growth of ice crystal nuclei and reduce damage to cells. , to avoid the loss of juice, to ensure a better taste of the ingredients, to improve the quality of frozen storage, and to meet the user's storage quality requirements for precious ingredients.

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Abstract

一种具有冷冻储物装置的冰箱,其包括:箱体,其内设置有实现冷冻储物功能的储物间室;冷冻储物装置,布置于储物间室内,该冷冻储物装置包括:储物盒,其内限定有冷冻储物空间;储物检测装置,设置于储物盒内,并配置成检测冷冻储物空间内储藏物状态;多组电磁线圈,横向并列设置于储物盒的外侧,并配置成根据储藏物状态确定对应的施加磁场模式,施加磁场模式包括:停止生成磁场、多组电磁线圈中部分启动、以及多组电磁线圈全部启动。本发明的方案,根据储物检测装置检测得到的储藏物状态确定相应的施加磁场模式,使得冷冻储物空间内磁场适合于冷冻制冷过程,提高了冷冻储物质量,减小了电磁线圈发热以及对外部部件的磁化影响。

Description

具有冷冻储物装置的冰箱 技术领域
本发明涉及冷藏冷冻储物装置,特别是涉及一种具有冷冻储物装置的冰箱。
背景技术
用户对储藏物的保鲜效果也越来越重视,现有技术中的保鲜储藏大多将重点聚焦于冷藏保鲜,对冷冻保鲜有所忽视。但是对于肉类、鱼、虾这类需冷冻的食材,在冷冻后往往会出现汁液流失导致口感变差、颜色变暗的问题,特别是某些需冷冻的高档食材,冷冻后的品质大为降低,这也影响了用户的使用体验。
为了提高冷冻储物的质量,现有技术中出现了较多的改进方案,例如通过速冻提高食物的冷冻速度或者食品进入过冷却状态,这种方案需要提高冰箱的制冷能力,还会导致冰箱耗能增加。因此实现更加高效地提高冷冻储物质量成为冰箱研发者亟待解决的技术难题。
理论研究发现磁场对冷冻过程中冰晶的形成有较大的影响。冰箱领域也积极探索将磁场引入冷冻保鲜中,然而在冰箱中实际应用时,磁场辅助冷冻的效果并不能令人满意。
发明内容
本发明的一个目的是要提供一种有效提高冷冻储物质量的冰箱的冷冻控制方法与冰箱。
本发明一个进一步的目的是要使得磁场与冷冻制冷保鲜的要求相适配。
特别地,本发明提供了一种具有冷冻储物装置的冰箱,其包括:箱体,其内设置有实现冷冻储物功能的储物间室;冷冻储物装置,布置于储物间室内,并且包括:储物盒,其内限定有冷冻储物空间;储物检测装置,设置于储物盒内,并配置成检测冷冻储物空间内储藏物状态;多组电磁线圈,横向并列设置于储物盒的外侧,并配置成根据储藏物状态确定对应的施加磁场模式,施加磁场模式包括:停止生成磁场、多组所述电磁线圈中部分启动、以及多组所述电磁线圈全部启动。
可选地,每组电磁线圈包括:分别相对设置于储物盒顶部的第一线圈以及设置于储物盒底部的第二线圈,第一线圈和第二线圈串联或者并联连接。
可选地,上述冷冻储物装置还包括:磁性框,由磁性材料制成,套设在储物盒的外部,并配置成使磁场经过磁性框完成磁力线闭环。
可选地,磁性框的顶壁的内侧形成有沿储物盒的横向方向间隔设置的多个第一凸台,每个第一凸台用于布置一组电磁线圈的第一线圈;磁性框的底壁的内侧形成有与第一凸台相对设置的第二凸台,每个第二凸台用于布置一组电磁线圈的第二线圈。
可选地,储物盒包括:外筒,设置于磁性框围成的空间内,并具有前向开口;以及抽屉,可抽拉地设置在外筒内。
可选地,外筒的后壁上开设有进风口以及回风口,进风口用于连接冰箱的送风风道或者连通冰箱的蒸发器,以将制冷气流引入储物盒;回风口用于连接冰箱的回风风道或者连通冰箱的蒸发器,以将换热后的气流送回冰箱的回风风道或蒸发器。
可选地,上述具有冷冻储物装置的冰箱还包括:开闭检测器,其中开闭检测器,配置成检测储物盒的开闭状态;储物检测装置,还配置成检测冷冻储物空间中每组电磁线圈对应区域在储物盒被打开前以及被关闭后的内部温度变化;制冷控制器,配置成在任一组电磁线圈对应区域的内部温度变化的幅度大于第一设定阈值的情况下启动对储物盒制冷;并且对应区域的内部温度变化的幅度大于第一设定阈值的电磁线圈启动,以释放磁场。
可选地,电磁线圈为两组,并且在两组线圈同时启动的磁场模式下,两组电磁线圈的磁极方向设置为相反。
可选地,在电磁线圈启动之后,若其对应区域的内部温度冷却至第二设定阈值后,则停止生成磁场。
可选地,制冷控制器,还配置成在两组电磁线圈对应区域的内部温度冷却至第三设定阈值后,则停止对储物盒制冷,并按照储物盒预设的制冷启动条件和制冷关闭条件对储物盒进行常规冷冻控制,以维持储物盒的冷冻储物环境;第三设定阈值低于第二设定阈值。
本发明的具有冷冻储物装置的冰箱,冷冻储物装置在储物盒的外侧设置有多组电磁线圈,多组电磁线圈根据储物检测装置检测得到的冷冻储物空间内储藏物状态确定相应的施加磁场模式,使得冷冻储物空间内磁场适合于冷 冻制冷过程,一方面提高了冷冻储物质量,满足了用户对珍贵食材的储藏质量要求。另一方面,通过有针对性的调整也减小了电磁线圈发热以及对冷冻储物装置外部部件的磁化影响。
进一步地,本发明的具有冷冻储物装置的冰箱,还通过磁性框,提供了磁力线的闭合路径,并为电磁线圈提供了装配结构,减小了占用的空间,从而提高了实用性。
更进一步地,本发明的具有冷冻储物装置的冰箱,可以设置偶数组电磁线圈,例如两组电磁线圈。在两组线圈同时启动的磁场模式的情况下,通过将磁场的磁极方向设置为相反,可以使得磁力线更加均匀,并且可以抵消或减小对外部的磁化作用。
更进一步地,本发明的具有冷冻储物装置的冰箱,在储物盒出现开闭事件后,获取储物盒各区域被打开前以及被关闭后的内部温度变化,通过各区域内部温度变化确定是否有新的食材放入或者食材是否需要重新冻结,从而开启对应的施加磁场模式,形成合适的磁场,使得食材在磁场环境中冻结,抑制冰晶晶核生长,使得冰晶生长速率高于水分子迁移速率,产生的冰晶偏小,从而减小对细胞造成的损伤,避免汁液流失,保证了食材更好的口感,提高了冷冻储物质量,满足了用户对珍贵食材的储藏质量要求。
更进一步地,本发明的具有冷冻储物装置的冰箱,对于电磁场的开闭条件进行了改进,在冰晶主要形成的期间施加磁场,提高了磁场的使用效率,一方面减小磁场对于储物盒外部其他部件的影响,另一方面也提高了冰箱的能效。
根据下文结合附图对本发明具体实施例的详细描述,本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解,这些附图未必是按比例绘制的。附图中:
图1是根据本发明一个实施例的具有冷冻储物装置的冰箱的示意性透视图;
图2是根据本发明一个实施例的具有冷冻储物装置的冰箱的冷冻储物装 置的示意图;
图3是根据本发明一个实施例的具有冷冻储物装置的冰箱中磁性框与储物盒的配合示意图;
图4是根据本发明一个实施例的具有冷冻储物装置的冰箱中磁性框的示意图;
图5是根据本发明一个实施例的具有冷冻储物装置的冰箱中储物盒的外筒的示意图;
图6是根据本发明一个实施例的具有冷冻储物装置的冰箱中电磁线圈的示意图;
图7是根据本发明一个实施例的具有冷冻储物装置的冰箱的冷冻储物装置中形成的一种磁场的示意图;
图8是根据本发明一个实施例的具有冷冻储物装置的冰箱的冷冻储物装置中形成的另一种磁场的示意图;
图9是根据本发明一个实施例的具有冷冻储物装置的冰箱的控制系统框图;以及
图10是根据本发明一个实施例的具有冷冻储物装置的冰箱的冷冻控制方法的示意图。
具体实施方式
图1是根据本发明一个实施例的具有冷冻储物装置的冰箱10的示意性透视图。本实施例的冰箱10一般性地可以包括箱体120、门体110、制冷系统(图中未示出)。箱体120内可以限定有至少一个前侧敞开的储物间室,通常为多个,如冷藏储物间室、冷冻储物间室、变温储物间室等等。具体的储物间室的数量和功能可以根据预先的需求进行配置。在本实施例的冰箱10至少应具有冷冻储物间室或者温度可达冷冻范围的变温储物间室(也即可用于实现冷冻储物环境),也即箱体120内设置有实现冷冻储物功能的储物间室。冷冻储物的温度范围一般可以设置为-14℃至-22℃。
本实施例的冰箱10可以为风冷冰箱,在箱体120内设置有风路系统,利用风机将经过蒸发器换热的制冷气流经送风口送向储物间室,然后经由回风口返回风道。实现制冷。由于此类冰箱的箱体120、门体110、制冷系统本身均是本领域技术人员习知且易于实现的,为了不掩盖和模糊本申请的发 明点,后文对箱体120、门体110、制冷系统本身不做赘述。
冷冻储物间室内部设置有一冷冻储物装置200。该冷冻储物装置200形成一个独立封闭的冷冻储物空间,其可以借助于磁场可以提高该冷冻储物空间的储物质量。在一定强度的磁场作用下,在冷冻过程中,可以限制水分子的自由程,表现为水分子蔟中的氢键断裂。由于晶核生长受到抑制,冰晶生长速率高于水分子迁移速率,产生的冰晶偏小,从而对细胞造成的损伤也小,汁液流失率下降,食材的营养和口感保存较好。此外磁场还可以缩短冻结时间,有助于抑制微生物和细菌数量。本实施例的冰箱10进一步对于磁场进行针对性的改进,通过优化磁场方向及启停时间,进一步提高了冷冻储物质量。
图2是根据本发明一个实施例的具有冷冻储物装置200的冰箱10的冷冻储物装置200的示意图;图3是根据本发明一个实施例的具有冷冻储物装置200的冰箱10中磁性框210与储物盒240的配合示意图(为了示出内部结构,省去了抽屉242);图4是根据本发明一个实施例的具有冷冻储物装置200的冰箱10中磁性框210的示意图;图5是根据本发明一个实施例的具有冷冻储物装置200的冰箱10中储物盒240的外筒241的示意图;图6是根据本发明一个实施例的具有冷冻储物装置200的冰箱10中电磁线圈230的示意图。
如图2-6所示,冷冻储物装置200布置于储物间室内,并且一般性地可以包括:多组电磁线圈230、储物盒240、储物检测装置250等。
储物盒240可以形成独立密封的冷冻储物空间,从而专用特定的食材提供更佳的冷冻储物环境。储物盒240设置于磁性框210围成的空间内。
储物盒240可以包括:外筒241和抽屉242。其中外筒241设置于磁性框210内,并具有前向开口。抽屉242可抽拉地设置在外筒241内。抽屉242的前面板可与外筒241形成密封结构。在冰箱10使用风冷进行制冷时,外筒241的后壁上开设有进风口243以及回风口244,进风口243用于连接所述冰箱10的风道送风口或者连通至冰箱10的蒸发器(例如连通至蒸发器的顶部区域),以将制冷气流引入储物盒240;回风口244用于连接冰箱10的风道回风口或者连通至冰箱10的蒸发器(例如连通至蒸发器的底部区域),以将换热后的气流送回冰箱10的回风风道或者蒸发器。在一些实施例中,进风口243以及回风口244可以设置风门(图中未示出)。风门在进行制冷 送风时受控打开。进风口243和回风口244可以根据风冷冰箱的风道、蒸发器的位置和结构进行配置,在另一些实施例中,回风口244也可以设置在外筒241侧壁上。
储物检测装置250设置于储物盒240内,并配置成检测冷冻储物空间内储藏物状态。储物检测装置250可以为可以扫描储物盒240冷冻储物空间内温度分布的红外传感器,也可以为多个独立的红外传感器(每个红外传感器用于检测冷冻储物空间内某一区域的温度情况)。储物检测装置250通过检测可以得到冷冻储物空间中各位置的内部温度变化。在一些实施例中,储物检测装置250可以设置在外筒241的顶壁内侧。
多组组电磁线圈230横向并列设置于储物盒240的外侧,并配置成根据储藏物状态确定对应的施加磁场模式,施加磁场模式包括:停止生成磁场、一组电磁线圈单独启动、任意多组电磁线圈启动、以及电磁线圈全部启动。电磁线圈230的施加磁场模式可以根据储物检测装置250的检测结果进行调整。
在一些实施例中,每组电磁线圈230可以包括:分别相对设置于储物盒顶部的第一线圈231以及设置于储物盒240底部的第二线圈232,第一线圈231和第二线圈232串联或者并联连接。每组电磁线圈230中第一线圈231和第二线圈232同时启停,从而在第一线圈231和第二线圈232之间的冷冻储物空间形成磁场。利用多组电磁线圈230可以覆盖整个冷冻储物空间。
在本实施例中,可以选择使用偶数组电磁线圈230。特别可以选择两组电磁线圈230,分别对应于储物盒240左半部分以及右半部分。例如在检测到储物盒240左半部分放入新的食材,则可以启动左侧的电磁线圈230;在检测到储物盒240右半部分放入新的食材,则可以启动右侧的电磁线圈230。如果放入的新的食材较多,则可以同时启动两组电磁线圈230。在两组线圈230同时启动的磁场模式下,两组电磁线圈230的磁极方向可以设置为相反,可以使得磁力线更加均匀,并且可以抵消或减小对外部的磁化作用。由于施加磁场模式可以灵活调整,可以使得冷冻储物空间内磁场适合于冷冻制冷过程,一方面提高了冷冻储物质量,满足了用户对珍贵食材的储藏质量要求。
在一些实施例中,本实施例的冰箱10还可以设置有磁性框210。磁性框290由磁性材料制成,套设在储物盒240的外部,并配置成使磁场经过磁性框210完成磁力线闭环。磁性材料可以使用软磁材料或者硬磁材料,例如可 以使用软磁材料,软磁材料的特点为具有低矫顽力和高磁导率,磁性框210可以用于聚拢磁场,减少磁场向外部释放,减少对冷冻储物装置200外侧的其他部件造成干扰(例如磁化其他部件等)。
磁性框210的顶壁的内侧形成有沿储物盒240的横向方向间隔设置的多个个第一凸台211,每个第一凸台211用于布置一组电磁线圈的第一线圈231;磁性框210的底壁的内侧形成有与第一凸台211相对设置的第二凸台212,每个第二凸台212用于布置一组电磁线圈的第二线圈232。也即第一线圈231套设在第一凸台211外周,第二线圈232套设在第二凸台212外周。在具有两组电磁线圈230的情况下,第一凸台211和第二凸台212可以设置为两个。
在一些实施例中,磁性框210可为前后方向具有贯通开口的方形筒体,也即横截面为回形的框体。方形筒体的前端和后端分别具有贯通的开口,以供布置各种类型的储物盒240。磁性框210的顶壁、底壁别形成有第一凸台211、第二凸台212。第一凸台211、第二凸台212分别为为第一线圈231、第二线圈232提供了安装结构。并且磁性框210提供了磁力线的闭合路径,并为电磁线圈230提供了装配结构,减小了占用的空间,从而提高了实用性。
第一凸台211、第二凸台212的横截面可以为方形或者圆形或者椭圆形,在使用方形横截面时,第一凸台211、第二凸台212更便于与箱体120结构配合。并且上述第一线圈231、第二线圈232的内周形状与对应第一凸台211、第二凸台212外周相适配,对应地设置为方形或者圆形或者椭圆形。在一些实施例中,第一线圈231和第二线圈232为镜像设置。
第一线圈231和第二线圈232可以设为扁平的方框状,沿周向缠绕,从而使得在通电后产生的磁场磁极方向与第一凸台211、第二凸台212垂直。第一凸台211、第二凸台212的高度可以与第一线圈231和第二线圈232的厚度相适配,从而使得回形框体的内壁基本平齐,以便布置储物盒240。在另一些实施例中第一线圈231和第二线圈232可以设为扁平的椭圆环状或者圆环状。
磁性框210用于对电磁线圈230产生的磁场进行导引,避免磁场不均匀以及影响储物盒240外部的其他部件,并使得电磁线圈230可以在冷冻储物空间形成均匀且强度足以满足提高冷冻储物质量的要求的磁场。
一般而言,两组电磁线圈230分别布置第一线圈231和第二线圈232的 磁场布置结构可以满足磁场辅助制冷的各种控制要求,磁场类型更加灵活。对于某些特殊使用场景,本领域技术人员可以设置更多组电磁线圈230。在两组线圈230同时启动的磁场模式下,两组电磁线圈230的磁极方向设置为相反,使得磁力线更加均匀,并且可以抵消或减小对外部的磁化作用。每组电磁线圈230可以使用独立进行控制,从而实现各种施加磁场模式。
图7、8分别是根据本发明一个实施例的具有冷冻储物装置的冰箱的冷冻储物装置中形成的一种磁场的示意图,其中图7的磁场由两组电磁线圈230同时启动时生成,可以应用于冷冻储物空间大部分区域需要磁场辅助冷冻保鲜的情况,在该种情况下两组电磁线圈230的磁极方向设置为相反,两组线圈230产生的磁场相互叠加,减少外部磁场的泄漏,单位电流下产生的有效磁通密度更多,有利于减小线圈230的发热量。由于两组线圈产生的外侧磁场相互叠加,磁性框210可以取消,而冷冻储物空间内的磁通密度不受影响,节约磁场保鲜装置的成本。
如果用户仅在一侧冷冻储物空间放入食材,则可以仅启动该侧的电磁线圈230。这尤其适用于法式冰箱的冷冻间室的较宽抽屉。由于整个冷冻储物空间较宽,通过检测储物状态,仅仅启动一侧电磁线圈,节约了电能消耗,减少了线圈发热。图8的磁场由左侧电磁线圈230启动时生成,可以应用于冷冻储物空间左侧区域需要磁场辅助冷冻保鲜的情况。相类似地,如果冷冻储物空间右侧区域需要磁场辅助冷冻保鲜的情况,可以启动右侧电磁线圈230启动。
本实施例的冰箱10将电磁线圈230的磁场控制与制冷控制相结合,保证食物在磁场环境中冻结,实现保鲜冷冻的效果。图9是根据本发明一个实施例的具有冷冻储物装置200的冰箱10的控制系统框图,冰箱10还设置有储物检测装置250、开闭检测器270、制冷控制器300。
储物检测装置250设置于储物盒240的外筒241内,并用于检测抽屉242内的温度,并且进一步可以得到检测冷冻储物空间中每组电磁线圈230对应区域在储物盒240被打开前以及被关闭后的内部温度变化,例如检测冷冻储物空间左侧区域的温度变化和右侧区域的温度变化。
开闭检测器270,配置成检测抽屉242的开闭状态。在抽屉242被拉开然后关闭后,借助于储物检测装置250,可以检测是否放入新的食材,或者原有食材是否需要重新冻结。然后使电磁线圈230和制冷系统配合,可以实 现磁场辅助冷冻,提高食材的冷冻保鲜效果。
制冷控制器300包括存储器310以及处理器320。存储器310内存储有控制程序311,控制程序311被处理器320执行时用于对电磁线圈230以及制冷系统进行控制,从而实现相应的冷冻控制方法。而各种传感器,为磁场控制提供了检测手段,从而可以满足控制方法的控制需求。
制冷控制器300可以配置成在任一组电磁线圈对应区域在储物盒240被打开前以及被关闭后的内部温度变化的幅度大于第一设定阈值的情况下启动对储物盒240制冷。储物盒240的内部温度变化反映了被储藏的食物的状态,如果内部温度变化的幅度较大,则说明储物盒240放入新的食物,或者食物的温度是否已经升高需要重新冻结;如果内部温度变化的幅度较小,则说明食物可能仍处于冻结状态。若冷冻储物空间内某一区域的内部温度变化的幅度大于第一设定阈值,则制冷控制器300启动对储物盒240进行冷冻制冷。第一设定阈值可以设置为2~8摄氏度,其可以根据冷冻设定温度灵活进行设置。例如冷冻储物空间的左侧区域或者右侧区域任一内部温度变化的幅度大于第一设定阈值,冷冻制冷启动。
对应区域的内部温度变化的幅度大于第一设定阈值的电磁线圈同时启动,以释放磁场。
储物盒240进行冷冻制冷时,利用磁场的辅助作用,可以对储藏物冷冻储藏质量更好,并且其灭菌效果也更好。另外上述启动条件,还可以避免长期形成磁场造成的发热及能耗增加,另一方面还可以避免对储物盒240外部其他部件产生磁化影响。
在电磁线圈230启动之后,若其对应区域的内部温度冷却至第二设定阈值后,则停止生成磁场,随着冷冻过程的持续,辅助冷冻所需的磁场相应减小,关闭电磁线圈230可以进一步减小能耗,第二设定阈值可以设置为-10~12摄氏度,在该温度范围内,储藏物已经大部分完成冻结。
然后,在全部电磁线圈230对应区域的内部温度继续冷却至第三设定阈值后,制冷控制器300停止对储物盒240制冷,第三设定阈值小于第二设定阈值,其可以根据储物盒240设定的冷冻关机温度设置,一般可以低于设定的冷冻关机温度。也即在磁场线圈230完成工作后,冷冻制冷延迟一段时间关闭。由于这次制冷是在储物盒240被打开后进行的,将第三设定阈值设置得更低,可以在一定程度上实现过冷,提高冷冻储物质量。
制冷控制器300停止对储物盒240制冷之后,还可以进一步配置成:按照储物盒240预设的制冷启动条件和制冷关闭条件对储物盒240进行常规冷冻控制,以维持储物盒240的冷冻储物环境;并且电磁线圈230可以配置成在制冷控制器300对储物盒240进行常规冷冻控制期间,按照预设的开闭策略产生磁场。
在完成磁场辅助冷冻制冷之后,恢复储物盒240正常冷冻控制,也即照储物盒240预设的制冷启动条件和制冷关闭条件对储物盒240进行冷冻控制。制冷启动条件和制冷关闭条件可以同样根据储物盒240的设定温度进行设置,在高于制冷启动温度时开始制冷,在低于制冷关闭温度时停止制冷。
在该按照储物盒240预设的制冷启动条件和制冷关闭条件对储物盒240进行冷冻控制的步骤也可以使用磁场辅助制冷,避免部分冰晶重新生成时导致储物质量下降。一种开闭策略可以为:在启停对储物盒240制冷的同时启停磁场,也即磁场与制冷同时启停。另一种替代性的方案为:在启动对储物盒240制冷时启动磁场,并在停止对储物盒240制冷之前关闭磁场,也即磁场仅在制冷的开始阶段启动。经过实际测试,磁场仅在制冷的开始阶段启动的储藏质量并没有与磁场与制冷同时启停的储藏质量明显下降。
另外一种在长期冷冻过程中,另一种开闭策略可以为:在按照储物盒240预设的制冷启动条件和制冷关闭条件对储物盒240进行冷冻控制的过程中,按照设定的周期启动磁场,也即磁场周期性启动。
在另一实施例中,在储物盒240正常冷冻控制启动磁场时,可以使两组电磁线圈230交替产生磁场,例如第一次启动左侧电磁线圈230,第二次启动右侧电磁线圈,如此循环。
在应用于风冷冰箱时,开启对储物盒240制冷的步骤可以包括:打开进风口,并开启向进风口243吹送制冷气流。
图10是根据本发明一个实施例的具有冷冻储物装置的冰箱的冷冻控制方法的示意图。本实施例的流程为冰箱的冷冻控制方法的一个具体应用示例,其中部分步骤的执行顺序可以进行调整。该流程可以包括:
步骤S902,检测储物盒240的开闭状态;
步骤S904,确定储物盒240被打开后又被关闭,也即判断储物盒240是否出现开闭事件;
步骤S906,获取储物盒240被打开前以及被关闭后的内部温度变化, 判断内部温度变化的幅度是否大于第一设定阈值,也即判断储物盒240是否放入新的食物,或者食物的温度是否已经升高需要重新冻结,第一设定阈值可以设置为2~8摄氏度,若内部温度变化幅度较小,食物可能无需重新冻结,则可以进行冷冻储物的制冷常规控制,也即按照设定开机温度阈值和关机温度阈值进行制冷控制。
步骤S908,开启制冷,向储物盒240送风,
步骤S910,确定内部温度变化的幅度大于第一设定阈值的冷冻储物空间的区域,启动该区域对应的电磁线圈230;在冷冻储物空间的左侧区域的内部温度变化的幅度大于第一设定阈值时,施加磁场模式为左侧电磁线圈230启动;在冷冻储物空间的右侧区域的内部温度变化的幅度大于第一设定阈值时,施加磁场模式为右侧电磁线圈230启动;若冷冻储物空间的左、右侧区域的内部温度变化的幅度均大于第一设定阈值时,施加磁场模式为两侧电磁线圈同时启动。
步骤S912,持续检测储物盒240的内部温度;
步骤S914,判断储物盒240的内部温度是否低于第二设定阈值(例如可以设置为-10~12摄氏度),也即判断是否完成基础冻结阶段;
步骤S916,关闭磁场;
步骤S920,判断储物盒240的内部温度是否低于第三设定阈值,第三设定阈值小于第二设定阈值,其可以根据储物盒240设定的冷冻关机温度设置,一般可以低于设定的冷冻关机温度。
步骤S922,停止对储物盒240制冷按照储物盒240预设的制冷启动条件和制冷关闭条件对储物盒240进行常规冷冻控制,以维持储物盒240的冷冻储物环境;并且在常规冷冻控制期间,按照预设的开闭策略启动磁场。
本实施例的具有冷冻储物装置的冰箱10,使得食材在磁场环境中冻结,并对磁场的方向及启停进行了针对性的控制,优先抑制冰晶晶核生长,减小对细胞造成的损伤,避免汁液流失,保证了食材更好的口感,提高了冷冻储物质量,满足了用户对珍贵食材的储藏质量要求。
至此,本领域技术人员应认识到,虽然本文已详尽示出和描述了本发明的多个示例性实施例,但是,在不脱离本发明精神和范围的情况下,仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此,本发明的范围应被理解和认定为覆盖了所有这些其他变型或修 改。

Claims (10)

  1. 一种具有冷冻储物装置的冰箱,包括:
    箱体,其内设置有实现冷冻储物功能的储物间室;
    冷冻储物装置,布置于所述储物间室内,并且包括:
    储物盒,其内限定有冷冻储物空间;
    储物检测装置,设置于所述储物盒内,并配置成检测所述冷冻储物空间内储藏物状态;
    多组电磁线圈,横向并列设置于所述储物盒的外侧,并配置成根据所述储藏物状态确定对应的施加磁场模式,所述施加磁场模式包括:停止生成磁场、多组所述电磁线圈中部分启动、以及多组所述电磁线圈全部启动。
  2. 根据权利要求1所述的具有冷冻储物装置的冰箱,其中
    每组所述电磁线圈包括:
    分别相对设置于所述储物盒顶部的第一线圈以及设置于所述储物盒底部的第二线圈,所述第一线圈和所述第二线圈串联或者并联连接。
  3. 根据权利要求2所述的具有冷冻储物装置的冰箱,其中所述冷冻储物装置还包括:
    磁性框,由磁性材料制成,套设在储物盒的外部,并配置成使所述磁场经过所述磁性框完成磁力线闭环。
  4. 根据权利要求3所述的具有冷冻储物装置的冰箱,其中
    所述磁性框的顶壁的内侧形成有沿储物盒的横向方向间隔设置的多个第一凸台,每个所述第一凸台用于布置一组所述电磁线圈的第一线圈;
    所述磁性框的底壁的内侧形成有与所述第一凸台相对设置的第二凸台,每个所述第二凸台用于布置一组所述电磁线圈的第二线圈。
  5. 根据权利要求3所述的具有冷冻储物装置的冰箱,其中所述储物盒包括:
    外筒,设置于所述磁性框围成的空间内,并具有前向开口;以及
    抽屉,可抽拉地设置在所述外筒内。
  6. 根据权利要求5所述的具有冷冻储物装置的冰箱,其中
    所述外筒的后壁上开设有进风口以及回风口,
    所述进风口用于连接所述冰箱的送风风道或者连通所述冰箱的蒸发器,以将制冷气流引入所述储物盒;
    所述回风口用于连接所述冰箱的回风风道或者连通所述冰箱的蒸发器,以将换热后的气流送回所述冰箱的回风风道或所述蒸发器。
  7. 根据权利要求1所述的具有冷冻储物装置的冰箱,还包括开闭检测器,其中
    所述开闭检测器,配置成检测所述储物盒的开闭状态;
    所述储物检测装置,还配置成检测所述冷冻储物空间中每组所述电磁线圈对应区域在所述储物盒被打开前以及被关闭后的内部温度变化;
    制冷控制器,配置成在任一组所述电磁线圈对应区域的所述的内部温度变化的幅度大于第一设定阈值的情况下启动对所述储物盒制冷;并且
    对应区域的所述的内部温度变化的幅度大于第一设定阈值的电磁线圈启动,以释放磁场。
  8. 根据权利要求7所述的具有冷冻储物装置的冰箱,其中
    所述电磁线圈为两组,并且在两组所述线圈同时启动的磁场模式下,两组所述电磁线圈的磁极方向设置为相反。
  9. 根据权利要求7所述的具有冷冻储物装置的冰箱,其中
    在所述电磁线圈启动之后,若其对应区域的所述的内部温度冷却至第二设定阈值后,则停止生成磁场。
  10. 根据权利要求9所述的具有冷冻储物装置的冰箱,其中
    所述制冷控制器,还配置成在多组所述电磁线圈对应区域的内部温度均冷却至第三设定阈值后,则停止对所述储物盒制冷,并按照所述储物盒预设的制冷启动条件和制冷关闭条件对所述储物盒进行常规冷冻控制,以维持所述储物盒的冷冻储物环境;所述第三设定阈值低于所述第二设定阈值。
PCT/CN2021/130608 2020-12-31 2021-11-15 具有冷冻储物装置的冰箱 WO2022142778A1 (zh)

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