WO2022267776A1 - 冷藏冷冻装置的控制方法及冷藏冷冻装置 - Google Patents

冷藏冷冻装置的控制方法及冷藏冷冻装置 Download PDF

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Publication number
WO2022267776A1
WO2022267776A1 PCT/CN2022/093876 CN2022093876W WO2022267776A1 WO 2022267776 A1 WO2022267776 A1 WO 2022267776A1 CN 2022093876 W CN2022093876 W CN 2022093876W WO 2022267776 A1 WO2022267776 A1 WO 2022267776A1
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WO
WIPO (PCT)
Prior art keywords
compartment
freezing
refrigerating
refrigerated
evaporator
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PCT/CN2022/093876
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English (en)
French (fr)
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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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 EP22827274.6A priority Critical patent/EP4361544A1/en
Publication of WO2022267776A1 publication Critical patent/WO2022267776A1/zh

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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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • 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
    • 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
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators

Definitions

  • the invention relates to refrigeration and freezing technology, in particular to a control method of a refrigeration and freezing device and the 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 that can effectively avoid low humidity in the freezer compartment by utilizing the original structure of the refrigerating and freezing device.
  • a further object of the first aspect of the invention is to increase the rate of humidification of the freezer compartment.
  • the object of the second aspect of the present invention is to provide a refrigerating and freezing device that can effectively avoid low humidity in the freezing compartment by utilizing its original structure.
  • the present invention provides a method for controlling a refrigerating and freezing device
  • the refrigerating and freezing device includes a box body and a refrigeration system, the box body defines a freezing compartment and at least one non-refrigerating compartment, so
  • 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, and at least A non-freezing branch circuit, each of the non-freezing branch circuits includes a series non-freezing capillary and a non-freezing evaporator;
  • the control method includes:
  • the refrigerating and freezing device When the refrigerating and freezing device is in the cooling state of any non-refrigerating compartment, reduce the operating frequency of the compressor so that the evaporator temperature of the freezing evaporator is higher than the compartment temperature in the freezing compartment, Therefore, the moisture in the freezing compartment is kept in the freezing compartment, and the moisture in the freezing evaporator enters into the freezing compartment, thereby increasing the humidity of the freezing compartment.
  • the refrigerating and freezing device further includes a refrigeration fan used to promote the cooling airflow generated by the freezing evaporator to flow to the freezing compartment when the freezing compartment is cooling; the control method further includes:
  • the freezing fan is controlled to continue to run until the temperature in the non-refrigerating compartment in the cooling state reaches the set temperature of the non-refrigerating compartment.
  • 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 set operating frequencies when the freezer compartment is in the cooling state.
  • the operating frequency of the compressor is 3-17 Hz lower than the set operating frequency.
  • the operating frequency of the compressor is 8-12 Hz lower than the set operating frequency.
  • control method also includes:
  • the solenoid valve is controlled to switch Refrigerate the freezer compartment and increase the operating frequency of the compressor.
  • 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 in series; and
  • 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 refrigerated freezer also includes:
  • the refrigeration fan is used to promote the cooling air flow generated by the refrigeration evaporator to flow to the refrigeration compartment when the refrigeration compartment is refrigerated, and is configured so that when the refrigerating and freezing device is in a cooling state of any non-refrigeration compartment The continuous operation state is maintained until the temperature in the non-refrigerated compartment in the refrigerated state reaches the set temperature of the non-refrigerated compartment.
  • 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 compartment temperature in the freezer compartment At this time, the external water vapor entering the freezer through the door seal and the moisture in the freezer (such as the moisture volatilized by food) will condense in the freezer with a lower temperature instead of condensing at the freezer evaporator.
  • Increase the moisture content in the freezer room as much as possible, increase the humidity in the freezer room, and avoid the low humidity in the freezer room from affecting the preservation effect of food materials.
  • the present invention realizes the effect of humidifying and moisturizing the freezing compartment by controlling the operating frequency of the compressor on the basis of the original structure of the refrigerating and freezing device, and does not need to add any auxiliary structure. Therefore, the original structure of the refrigerating and freezing device will not be affected. and storage capacity have any impact, which is convenient for practical application.
  • the refrigerating and freezing device further includes a refrigerating fan for urging the cooling airflow generated by the refrigerating evaporator to flow to the refrigerating compartment when the refrigerating compartment is refrigerated.
  • a refrigerating fan for urging the cooling airflow generated by the refrigerating evaporator to flow to the refrigerating compartment when the refrigerating compartment is refrigerated.
  • the refrigerating fan is usually stopped.
  • the refrigerating fan is set to run continuously during the cooling period of the non-refrigerated compartment.
  • the water vapor formed by partial frosting and sublimation on the surface of the refrigerating evaporator enters the refrigerated compartment with a lower temperature under the action of the refrigerating fan, further improving the The rate at which moisture in the freezer compartment increases, thereby increasing the rate of humidification of the freezer compartment.
  • 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 structural block diagram of a refrigeration system according to another embodiment of the present invention.
  • Fig. 6 is a schematic structural block diagram of a refrigeration system according to yet another embodiment of the present invention.
  • Fig. 7 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 box body 10 and a refrigeration system 20 , and the box body 10 defines a freezer compartment 11 and at least one non-freeze compartment.
  • 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 and parallel connections mentioned in the present invention refer to the physical series and parallel connections of the refrigerant flow paths, rather than the series and parallel connections of the circuit structure.
  • 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.
  • frost condensation rarely occurs in the storage compartment, and frost condensation 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 refrigerating and freezing device 1 When the refrigerating and freezing device 1 is in the cooling state of any non-freezing compartment, reduce the operating frequency of the compressor 21, so that the evaporator temperature of the freezing evaporator 25 is higher than the compartment temperature in the freezing compartment 11, so that the freezing The moisture in the compartment 11 is kept in the freezing compartment 11 , so that the moisture at the freezing evaporator 25 enters the freezing compartment 11 , thereby increasing the humidity of the freezing compartment 11 .
  • 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 freezer compartment 11 .
  • the external water vapor entering the freezing compartment 11 through the door seal and the moisture in the freezing compartment (for example, the moisture volatilized from the food, the sublimated moisture on the surface of the frozen food, etc.) will condense in the lower temperature freezing compartment 11 instead of condensing. Condensate at the freezing evaporator 25, thereby effectively increasing the moisture content in the freezing compartment 11, increasing the humidity in the freezing compartment 11, and avoiding that the low humidity in the freezing compartment 11 affects the food preservation effect.
  • 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 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 compartment temperature in the refrigerated compartment 11 .
  • the compressor 21 always operates at a reduced operating frequency, so as to keep the refrigerated compartment 11 moisturized or humidified.
  • the refrigerating-freezing device 1 further includes a freezing fan 30 for urging the cooling airflow generated by the freezing evaporator 25 to flow to the freezing compartment 11 when the freezing compartment 11 is cooling.
  • the control method of the present invention also includes:
  • the refrigerating fan 30 when the non-refrigerated compartment is being refrigerated, the refrigerating fan 30 is usually stopped.
  • the refrigerating fan 30 is set to run continuously during the cooling period of the non-refrigerated compartment. At this time, the water vapor formed by the partial frost sublimation on the surface of the refrigerating evaporator 25 enters at a faster speed and has a lower temperature under the impetus of the refrigerating fan 30.
  • the freezing compartment 11 increases the speed of moisture increase in the freezing compartment 11, thereby increasing the humidification rate of the freezing compartment 11.
  • 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 and freezing device 1 is in the cooling state of the non-freezing compartment; if so, go to step S30; 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 continue running until the temperature in the non-refrigerated compartment in the refrigerated state reaches the set temperature of the non-refrigerated compartment.
  • the continuous operation here means that the refrigerating fan 30 keeps running during the whole non-refrigerated compartment cooling.
  • the refrigeration fan 30 is started after reducing the operating frequency of the compressor 21 . It can be understood that, in some alternative embodiments, the start-up of the refrigeration blower 30 may also be performed simultaneously with reducing the operating frequency of the compressor 21 .
  • the rotational speed of the freezing fan 30 does not need to be relatively high.
  • 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 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-mentioned set 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 above-mentioned set 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.
  • control method of the present invention also includes:
  • the control solenoid valve 23 When the temperature in the non-freezing compartment in the cooling state reaches the set temperature of the non-freezing compartment, if the temperature in the freezing compartment 11 is higher than the set temperature of the freezing compartment 11, the control solenoid valve 23 is switched to freezing. The compartment 11 is refrigerated, and the operating frequency of the compressor 21 is increased, so that the freezing compartment 11 reaches the set temperature quickly.
  • the operating frequency of the compressor 21 can be increased to the above-mentioned set operating frequency.
  • 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. 5 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. 6 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. 7 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 includes a cabinet 10 , a refrigeration system 20 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.
  • 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 effectively increase the moisture content in the freezer compartment 11, increase the humidity in the freezer compartment 11, and avoid the low humidity in the freezer compartment 11 from affecting the food preservation effect.
  • 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 further includes a freezing fan 30 .
  • the refrigerating fan 30 is used to impel the cooling air flow generated by the refrigerating evaporator 25 to flow to the refrigerating compartment 11 when the refrigerating compartment 11 is cooling, and is configured to maintain a continuous operation state when the refrigerating and freezing device 1 is in the cooling state of any non-refrigerating compartment Until the temperature in the non-refrigerated compartment in the refrigeration state reaches the set temperature of the non-refrigerated compartment.
  • the moisture at the freezing evaporator 25 can be urged to enter the freezing compartment 11 faster through the freezing blower 30 , thereby improving the humidification efficiency of the freezing compartment 11 .
  • the refrigeration blower 30 is electrically connected with the control device 40 to operate under the control of the control device 40 .
  • the refrigerating and freezing device 1 of the present invention not only includes a refrigerator, but also includes 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)
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Abstract

公开了冷藏冷冻装置的控制方法及冷藏冷冻装置。冷藏冷冻装置包括箱体和制冷系统，箱体内限定有冷冻间室和至少一个非冷冻间室，制冷系统包括依次串联成回路的压缩机、冷凝器、电磁阀、冷冻毛细管和冷冻蒸发器，冷冻毛细管的两端并联有用于分别为至少一个非冷冻间室提供冷量的至少一个非冷冻支路，每个非冷冻支路均包括串联的非冷冻毛细管和非冷冻蒸发器。控制方法包括：当冷藏冷冻装置处于任一非冷冻间室制冷的状态时，降低压缩机的运行频率，以使得冷冻蒸发器的蒸发器温度高于冷冻间室内的间室温度，从而使得冷冻间室内的水分保持在冷冻间室内、使得冷冻蒸发器处的水分进入冷冻间室，进而提高冷冻间室的湿度。

Description

冷藏冷冻装置的控制方法及冷藏冷冻装置 技术领域
本发明涉及冷藏冷冻技术，特别是涉及一种冷藏冷冻装置的控制方法及冷藏冷冻装置。
背景技术
冷藏冷冻装置内湿度的高低会影响食材水分蒸发的快慢，从而影响食材的品质。当湿度过低时，食材的水分蒸发较快，会引起食材重量损失，继而造成食物储存效果差和食物保鲜期较短等问题。因此，对冷藏冷冻装置进行保湿始终是至关重要的研究课题。然而，目前的冷藏冷冻装置大多对冷藏室进行加湿保湿，很少关注冷冻室加湿保湿的问题。实际上，冷冻室的湿度较小，长时间储存在冷冻室内的肉类等食材的水分损失严重，储存效果差，不但会影响食材的口感，而且还会造成食材营养的流失，影响用户体验。
现有技术中少有的关于冷冻室加湿的方案都是在冷藏冷冻装置内增加非常复杂的加湿装置。然而，冷冻室温度较低，加湿装置本身容易产生凝霜而被堵，而且加湿装置会占用风道空间或间室空间。因此，现有的这些方案不但会增加冷藏冷冻装置的成本和装配难度，而且还非常难以在实际中应用，使得冷冻室湿度低的问题得不到实际解决。
发明内容
本发明第一方面的一个目的旨在克服现有技术的至少一个缺陷，提供一种能够利用冷藏冷冻装置的原有结构有效地避免冷冻间室内湿度较低的控制方法。
本发明第一方面的一个进一步的目的是提高冷冻间室的加湿速率。
本发明第二方面的目的是提供一种能够利用其原有结构有效地避免冷冻间室内湿度较低的冷藏冷冻装置。
根据本发明的第一方面，本发明提供一种冷藏冷冻装置的控制方法，所述冷藏冷冻装置包括箱体和制冷系统，所述箱体内限定有冷冻间室和至少一个非冷冻间室，所述制冷系统包括依次串联成回路的压缩机、冷凝器、电磁阀、冷冻毛细管和冷冻蒸发器，所述冷冻毛细管的两端并联有用于分别为所述至少一个非冷冻间室提供冷量的至少一个非冷冻支路，每个所述非冷冻支 路均包括串联的非冷冻毛细管和非冷冻蒸发器；所述控制方法包括：
当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，降低所述压缩机的运行频率，以使得所述冷冻蒸发器的蒸发器温度高于所述冷冻间室内的间室温度，从而使得所述冷冻间室内的水分保持在所述冷冻间室内、使得所述冷冻蒸发器处的水分进入所述冷冻间室，进而提高所述冷冻间室的湿度。
可选地，所述冷藏冷冻装置还包括用于在所述冷冻间室制冷时促使所述冷冻蒸发器产生的冷却气流流向所述冷冻间室的冷冻风机；所述控制方法还包括：
当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，控制所述冷冻风机持续运行直至处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度。
可选地，当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，所述冷冻风机的转速小于所述冷冻风机在所述冷藏冷冻装置处于冷冻间室制冷状态时的设定转速。
可选地，当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，所述压缩机的运行频率处于所述压缩机的最低运行频率和所述压缩机在所述冷藏冷冻装置处于冷冻间室制冷状态时的设定运行频率之间。
可选地，当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，所述压缩机的运行频率比所述设定运行频率低3～17赫兹。
可选地，当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，所述压缩机的运行频率比所述设定运行频率低8～12赫兹。
可选地，所述控制方法还包括：
当处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度时，若所述冷冻间室内的温度高于所述冷冻间室的设定温度，则控制所述电磁阀切换为所述冷冻间室制冷的状态，并提升所述压缩机的运行频率。
可选地，所述至少一个非冷冻间室包括冷藏间室，所述至少一个非冷冻支路包括冷藏支路，所述非冷冻毛细管包括冷藏毛细管，所述非冷冻蒸发器包括冷藏蒸发器；且/或
所述至少一个非冷冻间室包括变温间室，所述至少一个非冷冻支路包括变温支路，所述非冷冻毛细管包括变温毛细管，所述非冷冻蒸发器包括变温蒸发器。
根据本发明的第二方面，本发明还提供一种冷藏冷冻装置，包括：
箱体，所述箱体内限定有冷冻间室和至少一个非冷冻间室；
制冷系统，包括依次串联成回路的压缩机、冷凝器、电磁阀、冷冻毛细管和冷冻蒸发器，所述冷冻毛细管的两端并联有用于分别为所述至少一个非冷冻间室提供冷量的至少一个非冷冻支路，每个所述非冷冻支路均包括串联的非冷冻毛细管和非冷冻蒸发器；以及
控制装置，包括处理器和存储器，所述存储器内存储有机器可执行程序，并且所述机器可执行程序被所述处理器执行时用于实现上述任一方案所述的控制方法。
可选地，所述冷藏冷冻装置还包括：
冷冻风机，用于在所述冷冻间室制冷时促使所述冷冻蒸发器产生的冷却气流流向所述冷冻间室，且配置成当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时保持持续运行状态直至处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度。
本发明的冷藏冷冻装置在非冷冻间室制冷期间，通过降低压缩机的运行频率提高冷冻蒸发器的蒸发器温度，在满足非冷冻间室制冷需求的情况下使得冷冻蒸发器的蒸发器温度高于冷冻间室内的间室温度。此时，通过门封进入冷冻间室内的外界水汽以及冷冻间室内的水分(例如食材挥发的水分)会在温度更低的冷冻间室内凝结而不是凝结在冷冻蒸发器处，由此，可有效地提高冷冻间室内的水分含量，提高冷冻间室内的湿度，避免冷冻间室内的湿度较低而影响食材保存效果。
并且，本发明在冷藏冷冻装置原有结构的基础上通过对压缩机运行频率的控制实现冷冻间室加湿保湿的效果，不需要增加任何辅助结构，因此，不会对冷藏冷冻装置的原有结构及储物能力产生任何影响，便于在实际中应用。
进一步地，冷藏冷冻装置还包括用于在冷冻间室制冷时促使冷冻蒸发器产生的冷却气流流向冷冻间室的冷冻风机。现有技术中，在非冷冻间室制冷时，冷冻风机通常是停止的。本发明将冷冻风机设置成在非冷冻间室制冷期间持续运行，此时冷冻蒸发器表面的部分结霜升华形成的水汽在冷冻风机的促使作用下进入温度更低的冷冻间室，进一步提高了冷冻间室内水分增加的速度，从而提高了冷冻间室的加湿速率。
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冷藏冷冻装置的示意性结构图；
图2是根据本发明一个实施例的冷藏冷冻装置的制冷系统的示意性结构框图；
图3是根据本发明一个具体实施例的冷藏冷冻装置的控制方法的示意性流程图；
图4是根据本发明另一个具体实施例的冷藏冷冻装置的控制方法的示意性流程图；
图5是根据本发明另一个实施例的制冷系统的示意性结构框图；
图6是根据本发明又一个实施例的制冷系统的示意性结构框图；
图7是根据本发明一个实施例的冷藏冷冻装置的示意性结构框图。
具体实施方式
本发明首先提供一种冷藏冷冻装置的控制方法，图1是根据本发明一个实施例的冷藏冷冻装置的示意性结构图，图2是根据本发明一个实施例的冷藏冷冻装置的制冷系统的示意性结构框图。
参见图1和图2，冷藏冷冻装置1包括箱体10和制冷系统20，箱体10内限定有冷冻间室11和至少一个非冷冻间室。可以理解的是，冷冻间室11为用作冷冻的储物间室，非冷冻间室为用作非冷冻的储物间室，例如非冷冻间室可以为用作冷藏或变温的储物间室。通常情况下，非冷冻间室内的温度高于冷冻间室11内的温度。
制冷系统20包括依次串联成回路的压缩机21、冷凝器22、电磁阀23、冷冻毛细管24和冷冻蒸发器25，冷冻毛细管24的两端并联有用于分别为上述至少一个非冷冻间室提供冷量的至少一个非冷冻支路，每个非冷冻支路均包括串联的非冷冻毛细管和非冷冻蒸发器。需要说明的是，本发明所说的串联、并联分别指的是制冷剂流路在物理上的串联、并联，而不是电路结构的 串联、并联。
当冷藏冷冻装置1处于非冷冻间室制冷的状态时，电磁阀23的状态设置成连通冷凝器22和该非冷冻间室对应的非冷冻支路，此时，从压缩机21流出的制冷剂依次经过冷凝器22、电磁阀23、非冷冻支路的非冷冻蒸发器和非冷冻毛细管、冷冻蒸发器25，最后返回到压缩机21。当冷藏冷冻装置1处于冷冻间室制冷的状态时，电磁阀23的状态设置成连通冷凝器22和冷冻毛细管24，此时，从压缩机21流出的制冷剂依次经过冷凝器22、电磁阀23、冷冻毛细管24和冷冻蒸发器25，最后返回到压缩机21。
申请人认识到，冷冻间室11不是一个绝对封闭的间室。外界携带水分的空气会通过冷冻间室11的门封进入冷冻间室11内；冷冻间室11内部的尚未冻结的食材会挥发出一定的水分；在冷冻间室11内的食材冻结后，食材表面的水分会有少量升华；冷冻蒸发器25表面形成的凝霜也会有少量升华。也就是说，冷藏冷冻装置1内原本就具有多种能够用作对冷冻间室11进行保湿或加湿的水分来源。若能够将这些水分有效地用作对冷冻间室11进行保湿或加湿，那么就完全不需要设置任何其他的加湿装置。
申请人进一步认识到，对于风冷式的冷藏冷冻装置1来说，其储物间室内很少产生凝霜，凝霜基本产生在蒸发器上。这是因为蒸发器的温度普遍比储物间室的温度低。也就是说，水汽通常会在温度更低的位置聚集、凝结。那么，如果冷冻间室11内的间室温度比冷冻蒸发器25处的蒸发器温度低，水汽就会聚集在冷冻间室11内，就可以有效地对冷冻间室11进行保湿或提高冷冻间室内的湿度。
为此，本发明特别提出了一种冷藏冷冻装置的控制方法，该控制方法包括：
当冷藏冷冻装置1处于任一非冷冻间室制冷的状态时，降低压缩机21的运行频率，以使得冷冻蒸发器25的蒸发器温度高于冷冻间室11内的间室温度，从而使得冷冻间室11内的水分保持在冷冻间室11内、使得冷冻蒸发器25处的水分进入冷冻间室11，进而提高冷冻间室11的湿度。
本发明的冷藏冷冻装置1在非冷冻间室制冷期间，通过降低压缩机21的运行频率提高冷冻蒸发器25的蒸发器温度，在满足非冷冻间室制冷需求的情况下使得冷冻蒸发器25的蒸发器温度高于冷冻间室11内的间室温度。此时，通过门封进入冷冻间室11内的外界水汽以及冷冻间室内的水分(例 如食材挥发的水分、冷冻食材表面升华的水分等)会在温度更低的冷冻间室11内凝结而不是凝结在冷冻蒸发器25处，由此，可有效地提高冷冻间室11内的水分含量，提高冷冻间室11内的湿度，避免了冷冻间室11内的湿度较低而影响食材保存效果。
并且，本发明在冷藏冷冻装置1原有结构的基础上通过对压缩机21运行频率的控制实现冷冻间室11加湿保湿的效果，不需要增加任何辅助结构，因此，不会对冷藏冷冻装置1的原有结构及储物能力产生任何影响，便于在实际中应用。本发明实现冷冻间室11加湿保湿的方案与现有技术所采用的方案完全不同，设计思路非常新颖，且效果显著，实际应用的前景较好。
图3是根据本发明一个具体实施例的冷藏冷冻装置的控制方法的示意性流程图，参见图3，本发明的控制方法包括：
步骤S10，获取冷藏冷冻装置1当前所处的状态；
步骤S20，判断冷藏冷冻装置1是否处于非冷冻间室制冷状态；若是，则转步骤S30，若否，则返回步骤S10；以及
步骤S30，降低压缩机21的运行频率，以使得冷冻蒸发器25的蒸发器温度高于冷冻间室11内的间室温度。
需要说明的是，在整个非冷冻间室制冷期间，压缩机21始终以降低后的运行频率运行，以始终对冷冻间室11进行保湿或加湿。
在一些实施例中，冷藏冷冻装置1还包括用于在冷冻间室11制冷时促使冷冻蒸发器25产生的冷却气流流向冷冻间室11的冷冻风机30。在这些实施例中，本发明的控制方法还包括：
当冷藏冷冻装置1处于任一非冷冻间室制冷的状态时，控制冷冻风机30持续运行直至处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度。
现有技术中，在非冷冻间室制冷时，冷冻风机30通常是停止的。本发明将冷冻风机30设置成在非冷冻间室制冷期间持续运行，此时冷冻蒸发器25表面的部分结霜升华形成的水汽在冷冻风机30的促使作用下以较快的速度进入温度更低的冷冻间室11，提高了冷冻间室11内水分增加的速度，从而提高了冷冻间室11的加湿速率。
图4是根据本发明另一个具体实施例的冷藏冷冻装置的控制方法的示意性流程图，参见图4，本发明的控制方法包括：
步骤S10，获取冷藏冷冻装置1当前所处的状态；
步骤S20，判断冷藏冷冻装置1是否处于非冷冻间室制冷状态；若是，则转步骤S30；以及
步骤S30，降低压缩机21的运行频率，以使得冷冻蒸发器25的蒸发器温度高于冷冻间室11内的间室温度；以及
步骤S40，控制冷冻风机30持续运行直至处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度。这里的持续运行意指冷冻风机30在整个非冷冻间室制冷期间始终保持运行状态。
具体地，在图4所示实施例中，冷冻风机30是在降低压缩机21的运行频率后才启动的。可以理解的是，在一些替代性实施例中，冷冻风机30的启动也可以与降低压缩机21的运行频率同时进行。
由于冷冻风机30在非冷冻间室制冷期间运行的目的是促使冷冻蒸发器25上的部分凝霜升华形成的水汽较快地进入冷冻间室11，而不是向冷冻间室11输送气流，因此，冷冻风机30的转速不需要较大。
为此，在一些实施例中，当冷藏冷冻装置1处于任一非冷冻间室制冷的状态时，冷冻风机30的转速小于冷冻风机30在冷藏冷冻装置1处于冷冻间室制冷状态时的设定转速。这样既可以将冷冻蒸发器25上的部分凝霜升华形成的水汽较快地送入冷冻间室11，又可以避免较多的温度相对较高的气流进入冷冻间室11导致冷冻间室11内温度回升较多。
由于在非冷冻间室制冷期间，需要满足非冷冻间室的制冷需求，并且冷冻蒸发器25的蒸发器温度不能够太高，会影响冷冻间室11的温度。因此，压缩机21的运行频率不能够太低。
为此，在一些实施例中，当冷藏冷冻装置1处于任一非冷冻间室制冷的状态时，压缩机21的运行频率处于压缩机21的最低运行频率和压缩机21在冷藏冷冻装置1处于冷冻间室制冷状态时的设定运行频率之间。由此，既可以满足非冷冻间室的制冷需求、避免冷冻蒸发器25的蒸发器温度过高导致冷冻间室11内温度回升过多，又可以使得冷冻蒸发器25的蒸发器温度高于冷冻间室11内的间室温度，从而实现对冷冻间室11进行保湿或加湿的目的。
在一些实施例中，当冷藏冷冻装置1处于任一非冷冻间室制冷的状态时，压缩机21的运行频率比上述设定运行频率低3～17赫兹。也就是说，只要 适当地降低压缩机21的运行频率，使得冷冻蒸发器25的蒸发器温度稍微高于冷冻间室11内的温度即可，最大化地确保了非冷冻间室的制冷效率和制冷效果，且最大可能地避免了冷冻间室11内的温度回升过多。
例如，在非冷冻间室制冷期间，压缩机21的运行频率可以比冷冻间室制冷期间压缩机21的运行频率低3赫兹、5赫兹、7赫兹、9赫兹、11赫兹、13赫兹、15赫兹或17赫兹。
优选地，当冷藏冷冻装置1处于任一非冷冻间室制冷的状态时，压缩机21的运行频率比压缩机21的上述设定运行频率低8～12赫兹。由此，非冷冻间室的制冷效率和制冷效果、以及冷冻间室11内的保湿加湿效果都较佳。
在一些实施例中，本发明的控制方法还包括：
当处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度时，若冷冻间室11内的温度高于冷冻间室11的设定温度，则控制电磁阀23切换为冷冻间室11制冷的状态，并提升压缩机21的运行频率，以使得冷冻间室11较快地达到设定温度。
具体地，在冷冻间室11制冷期间，压缩机21的运行频率可以提高到上述设定运行频率。
在一些实施例中，上述至少一个非冷冻间室可包括冷藏间室12，上述至少一个非冷冻支路可包括冷藏支路201，上述非冷冻毛细管可包括冷藏毛细管26，上述非冷冻蒸发器可包括冷藏蒸发器27。在冷藏间室12制冷期间，通过降低压缩机21运行频率的方式对冷冻间室11进行保湿或加湿。
图5是根据本发明另一个实施例的制冷系统的示意性结构框图。在另一些实施例中，上述至少一个非冷冻间室可包括变温间室13，上述至少一个非冷冻支路可包括变温支路202，上述非冷冻毛细管可包括变温毛细管28，上述非冷冻蒸发器可包括变温蒸发器29。在变温间室13制冷期间，通过降低压缩机21运行频率的方式对冷冻间室11进行保湿或加湿。
图6是根据本发明又一个实施例的制冷系统的示意性结构框图。在又一些实施例中，非冷冻间室的数量可以为两个，分别为冷藏间室12和变温间室13。非冷冻支路的数量为两个，分别为冷藏支路201和变温支路202。非冷冻毛细管的数量为两个，分别为冷藏毛细管26和变温毛细管28。非冷冻蒸发器的数量为两个，分别为冷藏蒸发器27和变温蒸发器29。在冷藏间室12和变温间室13中任一间室制冷期间，通过降低压缩机21运行频率的方式 对冷冻间室11进行保湿或加湿。
本发明还提供一种冷藏冷冻装置，图7是根据本发明一个实施例的冷藏冷冻装置的示意性结构框图。参见图1、图2和图7，本发明的冷藏冷冻装置1包括箱体10、制冷系统20和控制装置40。
箱体10内限定有冷冻间室11和至少一个非冷冻间室。
制冷系统20包括依次串联成回路的压缩机21、冷凝器22、电磁阀23、冷冻毛细管24和冷冻蒸发器25，冷冻毛细管24的两端并联有用于分别为上述至少一个非冷冻间室提供冷量的至少一个非冷冻支路，每个非冷冻支路均包括串联的非冷冻毛细管和非冷冻蒸发器。
控制装置40包括处理器41和存储器42，存储器42内存储有机器可执行程序43，并且机器可执行程序43被处理器41执行时用于实现上述任一实施例所描述的控制方法。
本发明的冷藏冷冻装置1可有效地提高冷冻间室11内的水分含量，提高冷冻间室11内的湿度，避免了冷冻间室11内的湿度较低而影响食材保存效果。
具体地，处理器41可以是一个中央处理单元(central processing unit，简称CPU)，或者为数字处理单元等等。处理器41通过通信接口收发数据。存储器44用于存储处理器41执行的程序。存储器44是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何介质，也可以是多个存储器的组合。上述机器可执行程序43可以从计算机可读存储介质下载到相应计算/处理设备或者经由网络(例如因特网、局域网、广域网和/或无线网络)下载到计算机或外部存储设备。
在一些实施例中，冷藏冷冻装置1还包括冷冻风机30。冷冻风机30用于在冷冻间室11制冷时促使冷冻蒸发器25产生的冷却气流流向冷冻间室11，且配置成当冷藏冷冻装置1处于任一非冷冻间室制冷的状态时保持持续运行状态直至处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度。由此，可通过冷冻风机30促使冷冻蒸发器25处的水分更快地进入冷冻间室11，提高了冷冻间室11的加湿效率。
具体地，冷冻风机30与控制装置40电连接，以在控制装置40的控制下运行。
本领域技术人员应理解，本发明的冷藏冷冻装置1不但包括冰箱，而且 还包括冷柜、冰柜或其他至少具有冷冻功能的冷藏冷冻装置。
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. 一种冷藏冷冻装置的控制方法，所述冷藏冷冻装置包括箱体和制冷系统，所述箱体内限定有冷冻间室和至少一个非冷冻间室，所述制冷系统包括依次串联成回路的压缩机、冷凝器、电磁阀、冷冻毛细管和冷冻蒸发器，所述冷冻毛细管的两端并联有用于分别为所述至少一个非冷冻间室提供冷量的至少一个非冷冻支路，每个所述非冷冻支路均包括串联的非冷冻毛细管和非冷冻蒸发器；所述控制方法包括：
    当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，降低所述压缩机的运行频率，以使得所述冷冻蒸发器的蒸发器温度高于所述冷冻间室内的间室温度，从而使得所述冷冻间室内的水分保持在所述冷冻间室内、使得所述冷冻蒸发器处的水分进入所述冷冻间室，进而提高所述冷冻间室的湿度。
  2. 根据权利要求1所述的控制方法，所述冷藏冷冻装置还包括用于在所述冷冻间室制冷时促使所述冷冻蒸发器产生的冷却气流流向所述冷冻间室的冷冻风机；所述控制方法还包括：
    当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，控制所述冷冻风机持续运行直至处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度。
  3. 根据权利要求2所述的控制方法，其中
    当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，所述冷冻风机的转速小于所述冷冻风机在所述冷藏冷冻装置处于冷冻间室制冷状态时的设定转速。
  4. 根据权利要求1-3中任一项所述的控制方法，其中
    当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，所述压缩机的运行频率处于所述压缩机的最低运行频率和所述压缩机在所述冷藏冷冻装置处于冷冻间室制冷状态时的设定运行频率之间。
  5. 根据权利要求4所述的控制方法，其中
    当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，所述压缩机的运行频率比所述设定运行频率低3～17赫兹。
  6. 根据权利要求5所述的控制方法，其中
    当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时，所述压缩机的运行频率比所述设定运行频率低8～12赫兹。
  7. 根据权利要求1-6中任一项所述的控制方法，还包括：
    当处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度时，若所述冷冻间室内的温度高于所述冷冻间室的设定温度，则控制所述电磁阀切换为所述冷冻间室制冷的状态，并提升所述压缩机的运行频率。
  8. 根据权利要求1所述的控制方法，其中
    所述至少一个非冷冻间室包括冷藏间室，所述至少一个非冷冻支路包括冷藏支路，所述非冷冻毛细管包括冷藏毛细管，所述非冷冻蒸发器包括冷藏蒸发器；且/或
    所述至少一个非冷冻间室包括变温间室，所述至少一个非冷冻支路包括变温支路，所述非冷冻毛细管包括变温毛细管，所述非冷冻蒸发器包括变温蒸发器。
  9. 一种冷藏冷冻装置，包括：
    箱体，所述箱体内限定有冷冻间室和至少一个非冷冻间室；
    制冷系统，包括依次串联成回路的压缩机、冷凝器、电磁阀、冷冻毛细管和冷冻蒸发器，所述冷冻毛细管的两端并联有用于分别为所述至少一个非冷冻间室提供冷量的至少一个非冷冻支路，每个所述非冷冻支路均包括串联的非冷冻毛细管和非冷冻蒸发器；以及
    控制装置，包括处理器和存储器，所述存储器内存储有机器可执行程序，并且所述机器可执行程序被所述处理器执行时用于实现根据权利要求1-8中任一所述的控制方法。
  10. 根据权利要求9所述的冷藏冷冻装置，还包括：
    冷冻风机，用于在所述冷冻间室制冷时促使所述冷冻蒸发器产生的冷却气流流向所述冷冻间室，且配置成当所述冷藏冷冻装置处于任一非冷冻间室制冷的状态时保持持续运行状态直至处于制冷状态的非冷冻间室内的温度达到该非冷冻间室的设定温度。
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