WO2022267774A1 - Procédé de commande pour appareil de réfrigération et de congélation, et appareil de réfrigération et de congélation - Google Patents

Procédé de commande pour appareil de réfrigération et de congélation, et appareil de réfrigération et de congélation Download PDF

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Publication number
WO2022267774A1
WO2022267774A1 PCT/CN2022/093874 CN2022093874W WO2022267774A1 WO 2022267774 A1 WO2022267774 A1 WO 2022267774A1 CN 2022093874 W CN2022093874 W CN 2022093874W WO 2022267774 A1 WO2022267774 A1 WO 2022267774A1
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Prior art keywords
compartment
refrigerated
freezing
refrigerating
temperature
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PCT/CN2022/093874
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English (en)
Chinese (zh)
Inventor
崔展鹏
朱小兵
陈建全
Original Assignee
青岛海尔电冰箱有限公司
海尔智家股份有限公司
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Publication of WO2022267774A1 publication Critical patent/WO2022267774A1/fr

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    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices

Definitions

  • the invention relates to refrigeration and freezing technology, in particular to a control method of a refrigeration and freezing device and a refrigeration and freezing device.
  • the level of humidity in the refrigerating and freezing device will affect the speed of moisture evaporation of the ingredients, thereby affecting the quality of the ingredients.
  • the humidity is too low, the water in the ingredients evaporates quickly, which will cause the weight loss of the ingredients, which in turn leads to problems such as poor food storage effect and short food preservation period. Therefore, moisturizing the refrigerated freezer is always a crucial research topic.
  • most of the current refrigerating and freezing devices humidify and moisturize the refrigerator compartment, and pay little attention to the problem of humidifying and moisturizing the freezer compartment.
  • the humidity in the freezer is low, and the moisture loss of meat and other ingredients stored in the freezer for a long time is serious, and the storage effect is poor, which will not only affect the taste of the ingredients, but also cause the loss of nutrition of the ingredients and affect the user experience.
  • An object of the first aspect of the present invention is to overcome at least one defect of the prior art, and provide a control method of a refrigerating and freezing device capable of efficiently humidifying a freezing compartment.
  • Another object of the first aspect of the present invention is to prevent the temperature in the refrigerated compartment from excessively rising due to the long running time of the refrigerating fan when cooling the non-refrigerated compartment.
  • the object of the second aspect of the present invention is to provide a refrigerating and freezing device capable of efficiently humidifying the freezing compartment.
  • the present invention provides a control method for a refrigerating and freezing device
  • the refrigerating and freezing device includes a box body, a refrigeration system and a freezing fan, and the box body defines a refrigerated compartment and at least one non-refrigerated compartment
  • the refrigeration system includes a compressor, a condenser, a solenoid valve, a refrigerated capillary and a refrigerated evaporator that are connected in series in sequence.
  • At least one non-refrigerated branch of the amount each of which includes a non-refrigerated capillary and a non-refrigerated evaporator in series, and the refrigeration fan is used to promote the frozen evaporator when the frozen compartment is refrigerated.
  • the resulting cooling air flow is directed to the freezer compartment;
  • control methods include:
  • control method further includes:
  • control method when the humidity of the compartment exceeds a preset maximum humidity threshold or the temperature of the compartment exceeds a preset maximum temperature threshold, the control method further includes:
  • the preset maximum temperature threshold is 1-7°C higher than the set temperature of the freezing compartment.
  • control method also includes:
  • the electromagnetic The valve is switched to the cooling state of the freezing compartment, and the operating frequency of the compressor is restored to a preset operating frequency for cooling the freezing compartment.
  • the preset maximum humidity threshold is any relative humidity value between 80% and 100%.
  • the rotation speed of the freezing fan is lower than the set rotating speed of the freezing fan when the refrigerating and freezing device is in the cooling state of the freezing compartment .
  • the operating frequency of the compressor is at the lowest operating frequency of the compressor and the compressor is at the minimum operating frequency of the refrigerating-freezing device Between the preset operating frequencies when the freezer compartment is in cooling state.
  • the at least one non-refrigerated compartment comprises a refrigerated compartment
  • the at least one non-refrigerated branch comprises a refrigerated branch
  • the non-refrigerated capillary comprises a refrigerated capillary
  • the non-refrigerated evaporator comprises a refrigerated evaporator
  • the at least one non-refrigerated compartment includes a variable temperature compartment
  • the at least one non-refrigerated branch includes a variable temperature branch
  • the non-refrigerated capillary includes a variable temperature capillary
  • the non-refrigerated evaporator includes a variable temperature evaporator.
  • the present invention also provides a refrigerating and freezing device, comprising:
  • a cabinet defining a refrigerated compartment and at least one non-refrigerated compartment
  • the refrigeration system includes a compressor, a condenser, a solenoid valve, a refrigerated capillary and a refrigerated evaporator connected in series in sequence, and at least a non-refrigerated branch each comprising a non-refrigerated capillary and a non-refrigerated evaporator connected in series;
  • a refrigeration fan for causing the cooling airflow generated by the refrigeration evaporator to flow to the refrigeration compartment when the refrigeration compartment is refrigerated
  • the control device includes a processor and a memory, where a machine-executable program is stored in the memory, and when the machine-executable program is executed by the processor, it is used to implement the control method described in any of the above schemes.
  • the refrigerating and freezing device of the present invention increases the temperature of the evaporator of the refrigerating evaporator by reducing the operating frequency of the compressor during the refrigerating period of the non-refrigerating compartment, so that the temperature of the evaporator of the refrigerating evaporator is high while meeting the cooling demand of the non-refrigerating compartment
  • the external water vapor entering the freezer through the door seal and the moisture in the freezer (such as the moisture volatilized by ingredients) will condense in the freezer with a lower temperature instead of condensing at the freezer evaporator.
  • the freezer evaporator The water vapor formed by partial frost sublimation on the surface enters the freezing compartment with lower temperature under the impetus of the freezing fan.
  • the moisture content in the freezer can be increased simultaneously from multiple aspects, thereby efficiently increasing the humidity in the freezer, and avoiding the low humidity in the freezer from affecting the food preservation effect.
  • the present invention sets a preset maximum humidity threshold. When the humidity of the freezer in the freezer When the preset maximum humidity threshold is exceeded, it means that the humidity in the freezer room is already high enough, and it is not meaningful to continue to increase the humidity in the freezer room.
  • the present invention also specifically sets a preset maximum temperature threshold, and stops the refrigeration fan when the temperature of the compartment in the freezing compartment exceeds the preset maximum temperature threshold. That is to say, the present invention also directly monitors the temperature of the compartments in the freezing compartment. As long as the compartment temperature in the freezing compartment is too high, the refrigeration fan can be stopped at any time during the humidification process of the freezing compartment regardless of the temperature of the freezing compartment. Whether the humidity in the room meets the requirements, avoiding excessive temperature rise in the freezer room during the humidification process of the freezer room.
  • Fig. 1 is a schematic structural diagram of a refrigerating and freezing device according to one embodiment of the present invention
  • Fig. 2 is a schematic structural block diagram of a refrigeration system of a refrigerator-freezer according to an embodiment of the present invention
  • Fig. 3 is a schematic flowchart of a control method of a refrigerating and freezing device according to a specific embodiment of the present invention
  • Fig. 4 is a schematic flowchart of a control method of a refrigerating and freezing device according to another specific embodiment of the present invention.
  • Fig. 5 is a schematic flowchart of a control method of a refrigerating and freezing device according to yet another specific embodiment of the present invention.
  • Fig. 6 is a schematic structural block diagram of a refrigeration system according to another embodiment of the present invention.
  • Fig. 7 is a schematic structural block diagram of a refrigeration system according to yet another embodiment of the present invention.
  • Fig. 8 is a schematic structural block diagram of a refrigerating and freezing device according to an embodiment of the present invention.
  • the present invention firstly provides a control method for a refrigerating and freezing device
  • Fig. 1 is a schematic structural diagram of a refrigerating and freezing device according to an embodiment of the present invention
  • Fig. 2 is a schematic diagram of a refrigeration system of a refrigerating and freezing device according to an embodiment of the present invention sex structure diagram.
  • the refrigerating and freezing device 1 includes a cabinet 10 , a refrigeration system 20 and a freezing fan 30 .
  • a freezer compartment 11 and at least one non-freeze compartment are defined inside the box body 10 .
  • the freezer compartment 11 is used as a frozen storage compartment
  • the non-freezer compartment is used as a non-freezing storage compartment.
  • the non-freezer compartment can be used as a storage room for refrigeration or variable temperature room. Normally, the temperature in the non-refrigerated compartment is higher than the temperature in the refrigerated compartment 11 .
  • the refrigeration system 20 includes a compressor 21, a condenser 22, a solenoid valve 23, a refrigerated capillary 24, and a refrigerated evaporator 25 that are connected in series in sequence, and two ends of the refrigerated capillary 24 are connected in parallel to provide refrigeration for the above-mentioned at least one non-refrigerated compartment respectively.
  • At least one non-refrigerated branch of the quantity, each non-refrigerated branch includes a non-refrigerated capillary and a non-refrigerated evaporator connected in series.
  • the series connection and parallel connection mentioned in the present invention respectively refer to the physical series connection and parallel connection of the refrigerant flow paths, rather than the series connection and parallel connection of the circuit structure.
  • the refrigerating fan 30 is used to promote the cooling airflow generated by the refrigerating evaporator 25 to flow to the refrigerating compartment 11 when the refrigerating compartment 11 is cooling. That is to say, the refrigeration blower 30 can force the fluid at the location of the refrigeration evaporator 25 to flow to the refrigeration compartment 11 .
  • the state of the solenoid valve 23 is set to communicate with the non-refrigerating branch corresponding to the condenser 22 and the non-refrigerating compartment.
  • the refrigerant flowing out from the compressor 21 It passes through the condenser 22, the electromagnetic valve 23, the non-refrigerating evaporator and the non-refrigerating capillary of the non-refrigerating branch, and the freezing evaporator 25 in turn, and finally returns to the compressor 21.
  • the state of the electromagnetic valve 23 is set to communicate with the condenser 22 and the freezing capillary 24.
  • the refrigerant flowing out from the compressor 21 passes through the condenser 22 and the electromagnetic valve 23 in sequence. , the freezing capillary 24 and the freezing evaporator 25, and finally return to the compressor 21.
  • the freezer compartment 11 is not an absolutely closed compartment.
  • the air carrying moisture from the outside will enter the freezer compartment 11 through the door seal of the freezer compartment 11; the unfrozen ingredients inside the freezer compartment 11 will volatilize a certain amount of moisture; after the ingredients in the freezer compartment 11 are frozen, the ingredients
  • the moisture on the surface has a small amount of sublimation; the frost formed on the surface of the freezing evaporator 25 also has a small amount of sublimation.
  • the refrigerating-freezing device 1 originally has a variety of moisture sources that can be used for moisturizing or humidifying the freezing compartment 11 . If these moisture can be effectively used as moisturizing or humidifying the freezing compartment 11, then there is no need to arrange any other humidifying devices.
  • the applicant further realizes that, for the air-cooled refrigerating-freezing device 1, frosting rarely occurs in the storage compartment, and frosting basically occurs on the evaporator. This is because the temperature of the evaporator is generally lower than that of the storage compartment. That is to say, water vapor usually gathers and condenses in places with lower temperatures. Then, if the compartment temperature in the freezing compartment 11 is lower than the evaporator temperature at the freezing evaporator 25, water vapor will gather in the freezing compartment 11, which can effectively moisturize the freezing compartment 11 or improve the cooling capacity of the freezing compartment. Indoor humidity.
  • the present invention particularly proposes a kind of control method of refrigeration freezer, and this control method comprises:
  • the freezing blower 30 is stopped.
  • the refrigerating and freezing device 1 of the present invention increases the evaporator temperature of the refrigerating evaporator 25 by reducing the operating frequency of the compressor 21 during the refrigerating period of the non-refrigerating compartment, so that the evaporator 25 of the refrigerating evaporator 25 can meet the refrigeration requirements of the non-refrigerating compartment.
  • the evaporator temperature is higher than the compartment temperature in the freezing compartment 11, and the freezing fan 30 is controlled to be in an operating state.
  • the external water vapor entering the freezer compartment 11 through the door seal and the moisture in the freezer compartment 11 (such as the moisture volatilized by the food, the water sublimated on the surface of the frozen food, etc.) will condense in the freezer compartment 11 with a lower temperature.
  • the water vapor formed by sublimation of part of the frost on the surface of the refrigerating evaporator 25 enters the refrigerated compartment 11 with a lower temperature under the action of the refrigerating fan 30 .
  • the moisture content in the freezer compartment 11 can be increased from multiple aspects at the same time, thereby efficiently increasing the humidity in the freezer compartment 11, and avoiding the low humidity in the freezer compartment 11 that affects the food preservation effect. .
  • the refrigerated fan 30 will also drive the relatively high temperature air flow at the refrigerated evaporator 25 while impelling water vapor to enter the refrigerated compartment 11. Send to freezer compartment 11.
  • a preset maximum humidity threshold is specially set in the present invention.
  • the humidity in the freezer compartment 11 exceeds the preset maximum humidity threshold, it means that the humidity in the freezer compartment 11 is already high enough, and it is not meaningful to continue to increase the humidity in the freezer compartment 11. Stop freezing at this time Although the fan 30 slows down or prevents the water vapor no longer needed in the freezer compartment from entering the freezer compartment 11, it does not affect the preservation effect of the freezer compartment 11. More importantly, stopping the freezer fan 30 at this time also slows down or prevents the water vapor from entering the freezer compartment 11. The relatively high-temperature airflow at the freezing evaporator 25 continues to flow to the freezing compartment 11, thereby avoiding the problem of excessive temperature rise in the freezing compartment 11 caused by the long-time operation of the freezing fan 30.
  • the present invention realizes the effect of humidifying and moisturizing the freezing compartment 11 by controlling the operating frequency of the compressor 21 on the basis of the original structure of the refrigerating and freezing device 1, and does not need to add any auxiliary structure. Therefore, it will not affect the refrigerating and freezing device 1 It will not have any impact on the original structure and storage capacity, which is convenient for practical application.
  • the scheme of the present invention for realizing the humidification and moisturizing of the frozen compartment 11 is completely different from the scheme adopted in the prior art. The design idea is very novel, and the moisturizing and humidification effect is remarkable, and the prospect of practical application is good.
  • Fig. 3 is a schematic flow chart of a control method of a refrigerating and freezing device according to a specific embodiment of the present invention.
  • the control method of the present invention includes:
  • Step S10 obtaining the current state of the refrigerating and freezing device 1;
  • Step S20 judging whether the refrigerating-freezing device 1 is in the cooling state of the non-freezing compartment; if so, then go to step S30, if not, then return to step S10; and
  • Step S30 reducing the operating frequency of the compressor 21, so that the evaporator temperature of the refrigerated evaporator 25 is higher than the temperature of the compartment in the refrigerated compartment 11;
  • Step S40 controlling the refrigeration fan 30 to be in the running state
  • Step S50 obtaining the compartment humidity in the freezing compartment 11;
  • Step S60 judging whether the humidity of the compartment in the freezer compartment 11 exceeds the preset maximum humidity threshold; if yes, go to step S70, if not, return to step S50;
  • Step S70 stop the refrigeration fan 30.
  • the preset maximum humidity threshold may be any relative humidity value between 80% and 100%.
  • the preset maximum humidity threshold may be 80%, 85%, 90%, 95% or 100%.
  • the humidity in the freezer compartment 11 is not yet saturated, close to saturated or just saturated, the water vapor in the freezer compartment 11 will not or is not easy to condense, and the moisturizing or humidifying effect is better. Therefore, the food preservation effect is better. .
  • the refrigeration fan 30 will continue to run, which will not improve the moisturizing effect or humidification effect, but will also affect the temperature in the freezing compartment 11 . If the preset maximum humidity threshold is too small, the freezing fan 30 will be stopped when the humidity in the freezing compartment 11 does not meet the demand, which affects the humidification efficiency of the freezing compartment 11.
  • the control method in a further embodiment of the present invention also directly monitors the temperature in the freezing compartment 11 .
  • the control method of the present invention after controlling the refrigeration fan 30 to be in the running state, the control method of the present invention further includes:
  • the present invention also specifically sets a preset maximum temperature threshold, and when the temperature of the compartment in the freezing compartment 11 exceeds the preset maximum temperature threshold, the refrigeration blower 30 is stopped.
  • the present invention also directly monitors the temperature of the compartment in the freezer compartment 11, as long as the compartment in the freezer compartment 11 is too high, it can stop freezing at any time during the humidification process of the freezer compartment 11. Regardless of whether the humidity in the freezer compartment 11 meets the requirements, the fan 30 avoids excessive temperature rise in the freezer compartment 11 during the humidification process of the freezer compartment 11 and affects its basic freezer storage function.
  • Fig. 4 is a schematic flowchart of a control method for a refrigerating and freezing device according to another specific embodiment of the present invention.
  • the control method of the present invention includes:
  • Step S10 obtaining the current state of the refrigerating and freezing device 1;
  • Step S20 judging whether the refrigerating-freezing device 1 is in the cooling state of the non-freezing compartment; if so, then go to step S30, if not, then return to step S10; and
  • Step S30 reducing the operating frequency of the compressor 21, so that the evaporator temperature of the refrigerated evaporator 25 is higher than the temperature of the compartment in the refrigerated compartment 11;
  • Step S40 controlling the refrigeration fan 30 to be in the running state
  • Step S50 obtaining the compartment humidity in the freezing compartment 11;
  • Step S60 judging whether the humidity of the compartment in the freezer compartment 11 exceeds the preset maximum humidity threshold; if yes, go to step S70, if not, go to step S80;
  • Step S70 stop the refrigeration fan 30
  • Step S80 obtaining the compartment temperature in the freezing compartment 11;
  • Step S90 judging whether the temperature of the compartment in the freezing compartment 11 exceeds the preset maximum temperature threshold; if yes, go to step S70, if not, go back to step S50.
  • the temperature of the compartments in the freezing compartment 11 can also be obtained first and judged, and then the temperature of the compartments in the freezing compartment 11 can be obtained. Compartment humidity and the compartment humidity in the freezing compartment 11 are judged. In other alternative embodiments, the compartment temperature and compartment humidity in the freezing compartment 11 may also be obtained simultaneously, and the compartment temperature and compartment humidity or the compartment humidity and compartment temperature may be judged sequentially. That is to say, the present invention does not limit the sequence of judging the compartment temperature and compartment humidity in the freezing compartment 11 .
  • control method of the present invention when the humidity of the compartment in the refrigerated compartment 11 exceeds the preset maximum humidity threshold or the temperature of the compartment in the refrigerated compartment 11 exceeds the preset maximum temperature threshold, the control method of the present invention further includes:
  • step S70' of the embodiment shown in FIG. 5 and step S70 of the embodiment shown in FIG. slightly different.
  • Step S70' in some other embodiments includes: stopping the refrigeration fan 30, and keeping the operating frequency of the compressor 21 unchanged.
  • the humidity in the freezing compartment 11 is high enough, although the freezing fan 30 is stopped, the compressor 21 is still operated at a reduced operating frequency, and the freezing compartment 11 is slowly humidified to maintain or Slowly increase the compartment humidity in the freezer compartment 11 .
  • the compressor 21 If the temperature in the freezer compartment 11 exceeds the preset maximum temperature threshold, then stop the freezer blower 30, and no longer have the slightly higher airflow to flow to the freezer compartment 11, and the operating frequency of the compressor 21 has a significant impact on the temperature in the freezer compartment 11. The temperature effect becomes very small. In order to maintain or slowly increase the compartment humidity in the freezer compartment 11, the compressor 21 is still operated at a reduced operating frequency.
  • the inventors realized that if the preset maximum temperature threshold is too little higher than the set temperature of the freezer compartment 11, that is, close to the set temperature of the freezer compartment 11, the compartment temperature of the freezer compartment 11 will It is easy to reach the preset maximum temperature threshold, causing the refrigeration fan 30 to run for too short a time or even hardly run, which seriously affects the moisturizing and humidifying efficiency of the freezing compartment 11 . If the preset maximum temperature threshold is too much higher than the set temperature of the freezing compartment 11, that is, when the temperature in the freezing compartment 11 is too high, the freezing fan 30 is still in operation, and the temperature at the freezing evaporator 25 is relatively high. The air flow of the air continues to flow into the freezing compartment 11, causing the temperature of the compartment in the freezing compartment 11 to continue to rise, which will inevitably affect the freezing effect of the freezing compartment 11.
  • the preset maximum temperature threshold is 1 ⁇ 7° C. higher than the preset temperature of the freezing compartment 11 .
  • the preset maximum temperature threshold may be 1° C., 2° C., 3° C., 4° C., 5° C., 6° C. or 7° C. higher than the set temperature of the freezing compartment 11 . It can be understood that short-term changes in the temperature of the compartments in the freezer compartment 11 within a certain range near the set temperature will not have a substantial impact on the freezing effect of the freezer compartment 11. Therefore, the present invention uses a preset maximum The range of the difference between the temperature threshold and the set temperature of the freezer compartment 11 is specifically limited, so that the freezer compartment 11 can be humidified efficiently without affecting the freezing effect of the freezer compartment 11 .
  • control method of the present invention also includes:
  • the solenoid valve 23 is controlled to switch. To cool the freezer compartment 11, and restore the operating frequency of the compressor 21 to the preset operating frequency for cooling the freezer compartment 11, so that the freezer compartment 11 reaches the set temperature quickly.
  • the purpose of the refrigeration fan 30 running during the cooling period of the non-freezing compartment is to promote the water vapor formed by the sublimation of part of the condensed frost on the freezing evaporator 25 to enter the freezing compartment 11 rather than delivering airflow to the freezing compartment 11, therefore, The rotational speed of the freezing fan 30 does not need to be relatively large.
  • the rotating speed of the refrigerating fan 30 is less than the setting of the refrigerating fan 30 when the refrigerating-freezing device 1 is in the refrigerating state of the freezing compartment. Rotating speed. In this way, the water vapor formed by the sublimation of part of the frost on the freezing evaporator 25 can be sent into the freezing compartment 11 quickly, and more airflows with relatively high temperatures can be avoided from entering the freezing compartment 11 and causing the freezing in the freezing compartment 11. The temperature rises more.
  • the cooling demand of the non-freezing compartment needs to be met, and the evaporator temperature of the freezing evaporator 25 cannot be too high, which will affect the temperature of the freezing compartment 11 . Therefore, the operating frequency of the compressor 21 cannot be too low.
  • the operating frequency of the compressor 21 is at the lowest operating frequency of the compressor 21 and the compressor 21 is at the lowest operating frequency of the refrigerating-freezing device 1 .
  • the preset operating frequencies when the freezer compartment is in cooling state are possible to meet the cooling demand of non-refrigerated compartments, avoid excessive temperature rise in the freezing compartment 11 caused by the high evaporator temperature of the refrigerated evaporator 25, and make the evaporator temperature of the refrigerated evaporator 25 higher than that of the refrigerated compartment. Compartment temperature in the compartment 11, thereby realizing the purpose of moisturizing or humidifying the freezing compartment 11.
  • the operating frequency of the compressor 21 is 3-17 Hz lower than the above preset operating frequency. That is to say, as long as the operating frequency of the compressor 21 is appropriately reduced so that the evaporator temperature of the refrigerated evaporator 25 is slightly higher than the temperature in the refrigerated compartment 11, the refrigerating efficiency and refrigerating efficiency of the non-refrigerated compartment are maximized. Refrigeration effect, and to the greatest possible extent avoid the temperature in the freezing compartment 11 from rising too much.
  • the operating frequency of compressor 21 may be 3 Hz, 5 Hz, 7 Hz, 9 Hz, 11 Hz, 13 Hz, 15 Hz lower than the operating frequency of compressor 21 during refrigerated compartment cooling or 17 Hz.
  • the operating frequency of the compressor 21 is 8-12 Hz lower than the preset operating frequency of the compressor 21 . Therefore, the cooling efficiency and cooling effect of the non-freezing compartment, and the moisturizing and humidifying effect in the freezing compartment 11 are all better.
  • the at least one non-refrigerated compartment may include a refrigerated compartment 12, the at least one non-refrigerated branch may include a refrigerated branch 201, the non-refrigerated capillary may include a refrigerated capillary 26, and the non-refrigerated evaporator may include A refrigerated evaporator 27 is included.
  • the refrigerated compartment 11 is moisturized or humidified by reducing the operating frequency of the compressor 21 .
  • Fig. 6 is a schematic structural block diagram of a refrigeration system according to another embodiment of the present invention.
  • the above-mentioned at least one non-refrigerated compartment may include a variable temperature compartment 13
  • the above-mentioned at least one non-refrigerated branch may include a variable-temperature branch 202
  • the above-mentioned non-refrigerated capillary may include a variable-temperature capillary 28
  • the above-mentioned non-refrigerated evaporator A variable temperature evaporator 29 may be included.
  • the freezing compartment 11 is kept moist or humidified by reducing the operating frequency of the compressor 21 .
  • Fig. 7 is a schematic structural block diagram of a refrigeration system according to yet another embodiment of the present invention.
  • the number of non-freezing compartments can be two, which are refrigerated compartments 12 and variable temperature compartments 13 .
  • the number of non-refrigerated branches is two, namely the refrigerated branch 201 and the variable temperature branch 202 .
  • the number of non-refrigerating evaporators is two, which are refrigerating evaporators 27 and variable temperature evaporators 29 respectively.
  • the freezing compartment 11 is kept moist or humidified by reducing the operating frequency of the compressor 21 .
  • FIG. 8 is a schematic structural block diagram of the refrigerating and freezing device according to an embodiment of the present invention.
  • the refrigerating and freezing device 1 of the present invention comprises a casing 10, a refrigeration system 20, a freezing fan 30 and a control device 40.
  • a freezer compartment 11 and at least one non-freeze compartment are defined inside the box body 10 .
  • the refrigeration system 20 includes a compressor 21, a condenser 22, a solenoid valve 23, a refrigerated capillary 24, and a refrigerated evaporator 25 that are connected in series in sequence, and two ends of the refrigerated capillary 24 are connected in parallel to provide refrigeration for the above-mentioned at least one non-refrigerated compartment respectively.
  • At least one non-refrigerated branch of the quantity, each non-refrigerated branch includes a non-refrigerated capillary and a non-refrigerated evaporator connected in series. specifically.
  • the compressor 21 is electrically connected with the control device 40 to operate under the control of the control device 40 .
  • the refrigerating fan 30 is used to promote the cooling airflow generated by the refrigerating evaporator 25 to flow to the refrigerating compartment 11 when the refrigerating compartment 11 is cooling.
  • the refrigeration blower 30 is electrically connected with the control device 40 to operate under the control of the control device 40 .
  • the control device 40 includes a processor 41 and a memory 42, the memory 42 stores a machine executable program 43, and the machine executable program 43 is used to implement the control method described in any of the above embodiments when executed by the processor 41.
  • the refrigerating and freezing device 1 of the present invention can quickly and efficiently increase the moisture content in the freezing compartment 11, increase the humidity of the compartment in the freezing compartment 11, and avoid excessive temperature in the freezing compartment 11 caused by the long-time operation of the freezing fan 30. Elevated issues.
  • the processor 41 may be a central processing unit (central processing unit, CPU for short), or a digital processing unit or the like.
  • the processor 41 sends and receives data through the communication interface.
  • the memory 44 is used to store programs executed by the processor 41 .
  • the memory 44 is any medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, and can also be a combination of multiple memories.
  • the above-mentioned machine-executable program 43 can be downloaded from a computer-readable storage medium to a corresponding computing/processing device or downloaded to a computer or an external storage device via a network (such as the Internet, a local area network, a wide area network, and/or a wireless network).
  • the refrigerating and freezing device 1 of the present invention includes not only a refrigerator, but also a freezer, a freezer or other refrigerating and freezing devices with at least a freezing function.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

L'invention concerne un procédé de commande pour un appareil de réfrigération et de congélation, ainsi qu'un appareil de réfrigération et de congélation. L'appareil de réfrigération et de congélation (1) comprend un corps de boîte (10), un système de réfrigération (20) et un ventilateur de congélation (30). Une chambre de congélation (11) et au moins une chambre de non congélation (12, 13) sont définies dans le corps de boîte (10). Le système de réfrigération (20) comprend un compresseur (21), un condenseur (22), une vanne électromagnétique (23), un tube capillaire de congélation (24) et un évaporateur de congélation (25) qui sont connectés successivement en série pour former une boucle, au moins une branche de non congélation (201, 202) étant connectée en parallèle aux deux extrémités du capillaire de congélation (24), et chaque branche de non congélation (201, 202) comprenant un tube capillaire de non congélation (26, 28) et un évaporateur de non congélation (27 29), connectés en série. Le procédé de commande comprend : la réduction de la fréquence de fonctionnement du compresseur (21) lorsque l'appareil de réfrigération et de congélation (1) se trouve dans un état de réfrigération de n'importe quelle chambre de non congélation (12, 13), de sorte que la température d'évaporateur de l'évaporateur de congélation (25) soit supérieure à la température de la chambre dans la chambre de congélation (11) ; la commande du ventilateur de congélation (30) pour qu'il se trouve dans un état de fonctionnement ; l'acquisition de l'humidité de la chambre dans la chambre de congélation (11) ; et l'arrêt du ventilateur de congélation (30) lorsque l'humidité de la chambre dépasse un seuil d'humidité maximale prédéfini, de manière à humidifier rapidement et efficacement la chambre de congélation (11).
PCT/CN2022/093874 2021-06-21 2022-05-19 Procédé de commande pour appareil de réfrigération et de congélation, et appareil de réfrigération et de congélation WO2022267774A1 (fr)

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CN202110686623.9A CN115574531A (zh) 2021-06-21 2021-06-21 冷藏冷冻装置的控制方法、冷藏冷冻装置

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000346520A (ja) * 1999-06-02 2000-12-15 Toshiba Corp 冷蔵庫
CN101975483A (zh) * 2010-11-05 2011-02-16 江苏德莱仕电器有限公司 对开门冰箱双蒸发器制冷系统及其运行方法
CN103851851A (zh) * 2013-11-07 2014-06-11 海信（山东）冰箱有限公司 一种带有加湿功能的风冷冰箱及其控制方法
CN106123474A (zh) * 2016-06-23 2016-11-16 珠海格力电器股份有限公司 控制冷藏柜的柜内湿度的方法及装置
CN106766537A (zh) * 2017-02-28 2017-05-31 海信（山东）冰箱有限公司 一种三间室冰箱及其化霜和保湿的控制方法
CN106885419A (zh) * 2017-02-13 2017-06-23 合肥华凌股份有限公司 一种冰箱及制冰回风控制方法
CN107388691A (zh) * 2017-09-11 2017-11-24 合肥华凌股份有限公司 风冷冰箱、冷冻室加湿的控制方法及系统
KR20200105323A (ko) * 2019-02-28 2020-09-07 엘지전자 주식회사 냉장고 및 냉장고의 압축기 제어 방법

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000346520A (ja) * 1999-06-02 2000-12-15 Toshiba Corp 冷蔵庫
CN101975483A (zh) * 2010-11-05 2011-02-16 江苏德莱仕电器有限公司 对开门冰箱双蒸发器制冷系统及其运行方法
CN103851851A (zh) * 2013-11-07 2014-06-11 海信（山东）冰箱有限公司 一种带有加湿功能的风冷冰箱及其控制方法
CN106123474A (zh) * 2016-06-23 2016-11-16 珠海格力电器股份有限公司 控制冷藏柜的柜内湿度的方法及装置
CN106885419A (zh) * 2017-02-13 2017-06-23 合肥华凌股份有限公司 一种冰箱及制冰回风控制方法
CN106766537A (zh) * 2017-02-28 2017-05-31 海信（山东）冰箱有限公司 一种三间室冰箱及其化霜和保湿的控制方法
CN107388691A (zh) * 2017-09-11 2017-11-24 合肥华凌股份有限公司 风冷冰箱、冷冻室加湿的控制方法及系统
KR20200105323A (ko) * 2019-02-28 2020-09-07 엘지전자 주식회사 냉장고 및 냉장고의 압축기 제어 방법

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