WO2018103724A1 - Refrigerating and freezing device and air-regulating fresh-keeping control method therefor - Google Patents

Refrigerating and freezing device and air-regulating fresh-keeping control method therefor Download PDF

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Publication number
WO2018103724A1
WO2018103724A1 PCT/CN2017/115137 CN2017115137W WO2018103724A1 WO 2018103724 A1 WO2018103724 A1 WO 2018103724A1 CN 2017115137 W CN2017115137 W CN 2017115137W WO 2018103724 A1 WO2018103724 A1 WO 2018103724A1
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WIPO (PCT)
Prior art keywords
fresh
keeping
modified atmosphere
refrigerating
atmosphere
Prior art date
Application number
PCT/CN2017/115137
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French (fr)
Chinese (zh)
Inventor
娄喜才
王铭
王胜飞
王磊
Original Assignee
青岛海尔股份有限公司
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Publication of WO2018103724A1 publication Critical patent/WO2018103724A1/en

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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
    • 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
    • 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
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • 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
    • F25D29/003—Arrangement or mounting of control or safety devices for movable devices
    • 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
    • F25D2317/00—Details 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
    • F25D2317/04—Treating air flowing to refrigeration compartments

Definitions

  • the invention relates to the field of storage technology, in particular to a refrigerating and freezing device and a controlled atmosphere freshening control method thereof.
  • Food is the source of energy for people to survive and is vital to people.
  • the two main aspects are heat preservation and preservation.
  • temperature has a significant effect on the microbial activity on food and the action of enzymes in food. The decrease in temperature will delay the deterioration of food, and the refrigerator will remain constant.
  • a low-temperature refrigeration device is also a civilian product that keeps food or other items at a constant low temperature.
  • the stored food should also ensure that the color, taste, freshness, etc. of the food remain as constant as possible during storage. Therefore, users have put forward higher requirements for the preservation technology of the refrigerator.
  • the fresh-keeping technology of the refrigerator mainly adopts a vacuum preservation technology, and the vacuum fresh-keeping food excludes part of the air (oxygen) in the packaging container, destroying the conditions of growth of bacteria and microorganisms, thereby effectively preventing food spoilage and deterioration.
  • the vacuum preservation methods currently used are vacuum bag preservation and vacuum storage room preservation.
  • Vacuum bags are used for fresh-keeping, consumers need to carry out vacuuming operations every time they store food, which is troublesome and cannot be enjoyed by consumers.
  • the vacuum storage compartment is used for fresh-keeping. Because the box body is a rigid structure, it is required to maintain a vacuum state. The vacuum system is highly demanded, and the sealing performance of the refrigerator is very high. Each time an item is taken, a new one is poured in. More air, the consumption of energy in the refrigerator is greater.
  • the fresh-keeping system due to the installation of the fresh-keeping system, it will have certain influence on the original refrigeration system. For example, the fresh-keeping system and the refrigeration system are simultaneously activated, which will lead to the superposition of noise and the superposition of electric load, and at the same time, due to the lack of reasonable control of the fresh-keeping system, it is easy.
  • the problem of lowering the freshness preservation effect and increasing the energy consumption makes the refrigerator fresh-keeping function of the refrigerator difficult to realize.
  • An object of the present invention is to provide a controlled atmosphere freshening control method for a refrigerating and freezing device having a low cost and good fresh-keeping effect.
  • a further object of the present invention is to enable the modified atmosphere freshening system and the refrigeration system of the refrigerating and freezing apparatus to work in coordination to avoid mutual influence.
  • Another further object of the invention is to simplify the control complexity of the modified atmosphere freshening system.
  • the present invention provides a controlled atmosphere freshening control method for a refrigerating and freezing apparatus, wherein the refrigerating and freezing apparatus includes a tank defining a storage space, a modified atmosphere preservation system, and a refrigeration system, wherein a sealed space is formed in the storage space.
  • the modified atmosphere storage compartment includes a gas regulating membrane module and an air pump, and the air pump is configured to infiltrate the gas of the modified air conditioning subspace through the gas regulating membrane module to maintain a sub-storage space in the storage space.
  • the gas atmosphere is formed to facilitate food preservation
  • the refrigeration system is configured to provide cooling capacity to the storage space
  • the freshness control method comprises: obtaining a fresh-keeping operation mark of the modified atmosphere fresh-keeping system, and setting the fresh-keeping operation mark according to an operation event of the refrigeration and freezing device, And indicating whether the operation of the modified air freshening system is allowed
  • the running events of the refrigerating and freezing device include at least: an operation time of the refrigerating and freezing device, a start-stop event of the refrigeration system, an event that the storage space is opened and closed, and an air-conditioned fresh-keeping subspace is opened.
  • the step of setting the fresh-keeping running identifier according to the running event of the refrigerating and freezing device comprises: setting the fresh-keeping running flag to a prohibited state after the cooling system is started, and keeping the fresh-keeping operation after the first preset time of the cooling system being turned off The run ID is set to the allowed state.
  • the step of setting the fresh-keeping running identifier according to the running event of the refrigerating and freezing device comprises: setting the fresh-keeping running flag to a prohibited state after entering the frequent opening time period of the refrigerating and freezing device, and keeping the fresh-keeping operation after waiting for the frequent opening time period to pass
  • the run ID is set to the allowed state.
  • the step of setting the fresh-keeping running identifier according to the running event of the refrigerating and freezing device comprises: setting the fresh-keeping running flag to a prohibited state after the storage space is opened; and after the second preset time after the storage space is closed And when the modified fresh-keeping subspace is continuously closed for the third preset time, the fresh-keeping running flag is set to the allowable state.
  • the sealed alarm prompt information is output.
  • the power-on condition includes: the time for the gas adjustment of the modified air-preserving subspace to be completed by the last modified atmosphere preservation system exceeds a fifth preset time, or the oxygen concentration of the modified air-preserving sub-space is higher than or equal to the preset oxygen The upper limit of the concentration; the shutdown condition includes: the continuous operation time of the modified atmosphere preservation system reaches the sixth preset time, or the oxygen concentration of the modified atmosphere storage subspace is lower than or equal to the preset lower limit of the oxygen concentration.
  • the method further comprises: continuously monitoring the fresh-keeping operation identifier of the modified atmosphere fresh-keeping system, and if the fresh-keeping running indicator is set to a prohibited state, shutting off the gas Adjust the fresh system.
  • a refrigerating and freezing apparatus comprising: a box body defining a storage space therein, a sealed air-conditioned fresh-keeping sub-space formed in the storage space; and a modified atmosphere preservation system
  • the utility model comprises a gas regulating membrane module and an air pump, wherein the air pump is configured to infiltrate the gas of the modified air conditioning sub-space through the air-conditioning membrane module to form a gas atmosphere for food preservation in the atmosphere-preserving sub-space of the storage space;
  • the system is configured to provide cooling capacity to the storage space;
  • the controller is configured to control the start and stop of the modified atmosphere preservation system and the refrigeration system, and is further configured to: obtain a fresh-keeping operation indicator of the modified atmosphere preservation system, and keep the fresh-keeping operation identifier according to the refrigeration and freezing
  • the operation event of the device is set, and indicates whether the operation of the modified atmosphere storage system is allowed.
  • the operation events of the refrigeration and freezing device include at least: the running time of the refrigeration and freezing device, the start-stop event of the refrigeration system, the event that the storage space is opened and closed, The event that the modified atmosphere storage space is opened and closed; in the case that the fresh-keeping operation indicator is allowed to operate the modified atmosphere preservation system, Atmosphere in the case whether the system satisfies a predetermined start condition is satisfied and the condition of the boot, the system starts to modified atmosphere Atmosphere gas subspace is adjusted until the system reaches a preset Atmosphere shutdown conditions.
  • the controller is further configured to: after the cooling system is started, set the fresh-keeping running flag to a prohibited state, and set the fresh-keeping running flag to an allowable state after the first preset time of the cooling system being turned off; After the frequent opening time of the refrigerating and freezing device, the fresh-keeping running flag is set to the prohibited state, and after waiting for the frequent opening time period, the fresh-keeping running flag is set to the permission state; after the storage space is opened, the fresh-keeping running flag is set to The state is prohibited, and the freshness running flag is set to the permission state in the case where the storage space is closed for a second preset time and the modified air storage subspace is continuously closed for the third preset time.
  • the controller is further configured to: continuously monitor the fresh-keeping operation identifier of the modified atmosphere fresh-keeping system, and if the fresh-keeping operation identifier is set to the prohibited state, turn off the start of the modified atmosphere fresh-keeping system.
  • the refrigerating and freezing device of the present invention and the controlled atmosphere freshening control method thereof creatively propose to use a gas regulating membrane (for example, an oxygen-rich membrane) module to discharge oxygen in the air in the closed atmosphere-preserving sub-space into the space, thereby being in the space Get a nitrogen-rich oxygen-poor or other gas atmosphere that is good for food preservation.
  • a gas regulating membrane for example, an oxygen-rich membrane
  • the nitrogen-rich and oxygen-poor gas atmosphere can reduce the oxygen content in the storage space of fruits and vegetables, reduce the aerobic respiration of fruits and vegetables, and at the same time ensure the basic respiration and prevent anaerobic respiration of fruits and vegetables, thereby achieving the purpose of long-term preservation of fruits and vegetables.
  • the invention controls the startup control of the modified atmosphere fresh-keeping system
  • the optimization is carried out, and the conditions for allowing the modified atmosphere fresh-keeping system to be activated are set by using the fresh-keeping operation mark, thereby avoiding the influence of the modified atmosphere fresh-keeping system and the refrigeration system, and avoiding the influence of the normal use of the refrigeration and freezing device by the user, thereby improving the use of the user.
  • the conditions for allowing the modified atmosphere fresh-keeping system to be activated are set by using the fresh-keeping operation mark, thereby avoiding the influence of the modified atmosphere fresh-keeping system and the refrigeration system, and avoiding the influence of the normal use of the refrigeration and freezing device by the user, thereby improving the use of the user.
  • the conditions for allowing the modified atmosphere fresh-keeping system to be activated are set by using the fresh-keeping operation mark, thereby avoiding the influence of the modified atmosphere fresh-keeping system and the refrigeration system, and avoiding the influence of the normal use of the refrigeration and freezing device by the user, thereby improving the use of the user.
  • the refrigerating and freezing device of the invention and the controlled atmosphere freshening control method thereof also optimize the starting condition and the shutdown strip of the modified atmosphere freshening system, thereby ensuring the fresh-keeping effect on the one hand, and avoiding the long-term maintenance of the modified atmosphere fresh-keeping system on the other hand. Waste of energy consumption caused by inefficient operation.
  • FIG. 1 is a schematic block diagram of a refrigerating and freezing apparatus according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing the principle of controlled atmosphere preservation of a refrigerating and freezing apparatus according to an embodiment of the present invention
  • Figure 3 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • Figure 4 is a schematic view of another perspective of the structure shown in Figure 3;
  • Figure 5 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • Figure 6 is a schematic exploded view of the structure shown in Figure 5;
  • Figure 7 is an exploded view of a gas regulating membrane module in a refrigerating and freezing apparatus according to an embodiment of the present invention
  • Figure 8 is a schematic block diagram of a control system of a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a controlled atmosphere freshening control method of a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • FIG. 10 is a schematic block diagram showing a flow control method of a controlled atmosphere fresh-keeping apparatus of a refrigerating and freezing apparatus according to an embodiment of the present invention
  • FIG. 11 is a schematic flow chart of determining a gas-conditioning fresh-keeping subspace in a controlled atmosphere fresh-keeping control method of a refrigerating and freezing apparatus according to an embodiment of the present invention
  • FIG. 12 is a schematic diagram of a start-up determination of a modified atmosphere freshening system according to an oxygen concentration in a controlled atmosphere freshening control method of a refrigerating and freezing apparatus according to an embodiment of the present invention
  • Fig. 13 is a schematic diagram showing the start-up determination of the modified atmosphere fresh-keeping system 80 according to time in the controlled atmosphere fresh-keeping control method of the refrigerating and freezing apparatus according to an embodiment of the present invention.
  • the refrigerating and freezing device of the embodiment of the invention adopts the atmosphere-preserving and fresh-keeping technology to form a gas atmosphere in the atmosphere-preserving sub-space to satisfy the storage and release requirements of the articles.
  • the refrigerating and freezing apparatus generally includes a tank 20, an air conditioning system 80, a refrigeration system 70, and a controller 110.
  • the inside of the box body 20 defines a storage space, and a sealed atmosphere-preserving sub-space is formed in the storage space.
  • the modified atmosphere preservation system 80 includes a gas regulating membrane module 30 and an air pump 40.
  • the air pump 40 infiltrates the gas in the modified air conditioning sub-space through the air-conditioning membrane module 30 to form a gas atmosphere for food preservation in the atmosphere-preserving sub-space of the storage space.
  • the refrigeration system 70 is used to provide cooling to the storage space.
  • the controller 110 can control the fresh air conditioning system 80 and the refrigeration system 700 to start and stop according to the operation of the refrigerating and freezing device.
  • the modified atmosphere freshening system 80 uses a gas regulating membrane to form a gas atmosphere in the modified atmosphere sub-space to meet the storage requirements of the articles.
  • the gas-adjusting membrane also known as the oxygen-rich membrane
  • the gas regulating film is generally used for making Prepare oxygen for use in medical, fermentation, and combustion applications.
  • the refrigerating and freezing device uses the gas regulating membrane to discharge oxygen, so that the oxygen concentration in the modified air conditioning sub-space is lowered, and a gas atmosphere conducive to food preservation is realized.
  • the modified atmosphere preservation technology extends the food storage life by adjusting the gas atmosphere (gas composition ratio or gas pressure) of the enclosed space in which the storage object is located, and the basic principle is: in a certain closed space ( In the modified atmosphere space, a gas atmosphere different from the normal air component is obtained through the gas regulating membrane to suppress physiological and biochemical processes and microbial activities leading to spoilage of the stored matter (usually food).
  • the modified atmosphere preservation will be specifically directed to a modified atmosphere preservation technique that adjusts the proportion of gas components.
  • normal air components include (by volume percent, hereinafter the same): about 78% nitrogen, about 21% oxygen, about 0.939% rare gases ( ⁇ , ⁇ , argon, krypton, xenon, ⁇ ), 0.031% of carbon dioxide, and 0.03% of other gases and impurities (for example, ozone, nitrogen monoxide, nitrogen dioxide, water vapor, etc..
  • gases and impurities for example, ozone, nitrogen monoxide, nitrogen dioxide, water vapor, etc.
  • the nitrogen-enriched gas refers to a gas having a nitrogen content exceeding the nitrogen content in the above-mentioned normal air, for example, the nitrogen content may be 95%. ⁇ 99%, or even higher; and the nitrogen-rich and oxygen-poor fresh gas atmosphere refers to a gas atmosphere in which the nitrogen content exceeds the above-mentioned normal air nitrogen content and the oxygen content is lower than the above-mentioned normal air oxygen content.
  • the air-conditioning system is economically compacted and quieted by the above-described air-conditioning membrane module, and is suitable for use in a small-sized refrigerating and freezing apparatus such as a refrigerator.
  • 2 is a schematic view showing the principle of air conditioning and preservation of a refrigerating and freezing apparatus according to an embodiment of the present invention
  • FIG. 3 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention
  • FIG. 4 is another structure of the structure shown in FIG. Schematic diagram of the perspective.
  • an embodiment of the present invention provides a refrigerating and freezing apparatus, which may include a tank 20, a door body (not shown), a gas regulating membrane module 30, an air pump 40, and a refrigeration system 70.
  • a storage space is defined in the casing 20 of the refrigerating and freezing apparatus, and the storage space can be configured as a refrigerating compartment 27, a freezing compartment 25, a changing greenhouse 26, and the like according to the cooling temperature.
  • the refrigerating and freezing device may be a refrigerator having at least a refrigerating chamber 27 and a freezing chamber 25.
  • the refrigeration system can be a conventional compression refrigeration system that provides refrigeration to the storage compartment by, for example, direct cooling and/or air cooling to provide the storage compartment with a desired storage temperature.
  • the storage temperature of the refrigerator compartment 27 may be 2 to 9 ° C, or may be 4 to 7 ° C; the storage temperature of the freezer compartment 25 may be -22 to -14 ° C, or may be -20 to 16 °C.
  • the freezing compartment 25 is disposed below the refrigerating compartment 27, and the changing greenhouse 26 is disposed between the freezing compartment 25 and the refrigerating compartment 27.
  • the temperature within the freezer compartment 25 typically ranges from -14 °C to -22 °C.
  • the variable greenhouse 26 can be adjusted as needed to store the appropriate food.
  • a sealed atmosphere-preserving sub-space 271 is formed in the storage space, and the modified-air-preserving sub-space 271 may be disposed in any of the above-described compartments, and preferentially disposed in the refrigerating compartment 27 and the changing greenhouse 26.
  • the modified atmosphere sub-space 271 may be a lower storage space provided in the refrigerating compartment 27.
  • the door body is pivotally mounted to the case 20 and is configured to open or close a storage space defined by the case 20.
  • a small door may be disposed on the inner side of the door body to open or close the modified air-preserving sub-space 271, thereby forming a double-layered door structure.
  • the refrigerated freezer can utilize the drawer to form the modified atmosphere sub-space 271 described above.
  • the drawer may have a drawer body 22 and a drawer body 23.
  • the atmosphere-preserving sub-space 271 is formed by the drawer type storage compartment.
  • the drawer cylinder 22 has a front opening and is disposed in the storage space (for example, a lower portion of the refrigerating chamber 27).
  • the drawer body 23 is slidably mounted to the drawer cylinder 22, and the front end of the drawer body 23 is provided with an end plate, and a drawer
  • the barrel 22 is fitted to close the opening of the modified atmosphere sub-space 271.
  • One specific way is that the drawer body 23 can be operatively drawn outwardly and inwardly from the forward opening of the drawer body 22.
  • the end plate closes the opening of the modified atmosphere sub-space 271 by the sealing structure.
  • the drawer body 22 may form a seal with the end plate of the drawer body 23, which may be properly leaked to achieve air pressure balance.
  • the air pressure balance can be ensured by providing millimeter-scale micropores or one-way valves on the drawer body 22.
  • the refrigeration system 70 may be a refrigeration cycle system composed of a compressor, a condenser, a throttle device, an evaporator, and the like.
  • the compressor is mounted in the compressor compartment 24.
  • the evaporator is configured to provide cooling directly or indirectly into the storage space.
  • the refrigerating and freezing device is a domestic compression type direct cooling refrigerator
  • the evaporator may be disposed outside or inside the rear wall surface of the inner casing 21.
  • the casing 20 further has an evaporator chamber, the evaporator chamber is connected to the storage space through the air passage system, and an evaporator is arranged in the evaporator chamber, and a fan is arranged at the outlet.
  • the gas regulating membrane module 30 has a gas regulating membrane and defines an oxygen-rich gas collecting chamber.
  • the pressure of the oxygen-rich gas collecting chamber is lower than the pressure of the surrounding environment, the ambient gas (most of the oxygen) passes through the gas regulating membrane and enters the gas. Adjust the oxygen-rich gas collection chamber.
  • the other side of the air-conditioning membrane may be in direct contact with the modified atmosphere sub-space 271 or with a circulation flow path (or a circulation space) connected to the modified atmosphere sub-space 271, so that the oxygen-rich gas collection chamber can be
  • the atmosphere gas in the air in the modified air conditioning subspace 271 is passed through the gas regulating membrane into the oxygen-rich gas collecting chamber, and in the case of using the oxygen-rich membrane, the modified air conditioning subspace 271
  • the oxygen is extracted so that the modified atmosphere sub-space 271 forms an oxygen-poor gas atmosphere.
  • the air pump 40 can be disposed in the compressor chamber 24, and the inlet end of the air pump 40 communicates with the oxygen-rich gas collecting chamber of the gas regulating membrane assembly 30 via the line 50, and is configured to extract the gas of the oxygen-rich gas collecting chamber outward. At least a portion of the oxygen in the modified atmosphere sub-space 271 is passed through the gas-regulating membrane into the oxygen-rich gas collection chamber, thereby reducing the concentration of oxygen in the modified atmosphere.
  • the air pump 40 is configured to extract oxygen-rich gas from the oxygen-rich gas collection chamber to reduce the oxygen concentration of the modified atmosphere sub-space 271. In order to obtain a gas atmosphere rich in nitrogen and oxygen in the modified atmosphere sub-space 271 to facilitate food preservation.
  • the refrigerating and freezing device of the present invention can form a gas atmosphere rich in nitrogen and oxygen in the modified atmosphere sub-space 271 to facilitate food preservation, and the gas atmosphere reduces the oxygen content of the fruit and vegetable by reducing the oxygen content in the storage space of the fruit and vegetable, and simultaneously It ensures the basic respiration and prevents anaerobic respiration of fruits and vegetables, thus achieving the purpose of long-term preservation of fruits and vegetables.
  • the gas atmosphere also has a large amount of gas such as nitrogen gas, which does not reduce the cooling efficiency of articles in the subspace, and can effectively store fruits and vegetables and the like.
  • the air pump 40 is disposed in the compressor compartment 24, and can fully utilize the space of the compressor compartment 24 without occupying other places, so that the extra volume of the refrigerating and freezing apparatus is not increased, and the structure of the refrigerating and freezing apparatus can be made compact.
  • the air pump 40 and the compressor may be disposed on both sides of the compressor compartment 24, respectively, spaced apart from each other such that the distance of the air pump 40 from the compressor is relatively long, reducing noise superposition and waste heat stacking.
  • the air pump 40 may be disposed at one end of the compressor nacelle 24 adjacent to the pivoting side of the door body.
  • the air pump 40 can be disposed at any position of the compressor bay 24.
  • the air pump 40 may also be disposed adjacent to the compressor, such as the air pump 40 disposed at one end of the compressor bay 24 and between the compressor and the sidewall of the compressor bay 24.
  • the air pump 40 may be mounted in a sealed box that may be mounted within the compressor compartment 24 by a mounting floor.
  • the sealed box can largely block the noise and/or waste heat of the air pump 40 from propagating outward.
  • FIG. 5 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention
  • FIG. 6 is a schematic exploded view of the structure shown in FIG. 5, and the air conditioning membrane module 30 may be disposed in a cylinder of the drawer cylinder 22. It is preferably disposed on the top wall of the drawer body 22.
  • a receiving chamber 31 that communicates with the modified atmosphere sub-space 271 is disposed in the top wall of the drawer cylinder 22.
  • At least one first vent hole 222 and at least one second vent hole spaced apart from the at least one first vent hole 222 are defined in a wall surface between the accommodating cavity 31 of the top wall of the drawer cylinder 22 and the modified air conditioning subspace 271.
  • the receiving chamber 31 and the modified atmosphere sub-space 271 are respectively connected at different positions, and the accommodating chamber 31 and the modified atmosphere sub-space 271 are communicated via the at least one first communication hole 222 and the at least one second communication hole 223;
  • the assembly 30 is disposed in the accommodating cavity 31 and may be disposed above the at least one second communication hole 223.
  • the accommodating chamber 31 is configured to be air-conditioned and fresh-keeping.
  • the 271 is connected to the circulation space such that the gas regulating membrane 36 in the gas regulating membrane module 30 is in contact with the gas in the modified atmosphere sub-space 271.
  • the first communication hole 222 and the second communication hole 223 are both small holes, and the number may be plural.
  • the inside of the top wall of the first drawer body 22 has a recessed groove.
  • the air conditioning membrane module 30 is disposed in a recessed groove of the top wall of the first drawer body 22.
  • a fan 60 may be disposed in the accommodating chamber 31 of the first sealing assembly 71, and the fan 60 is formed to sequentially form at least a first venting hole 222, a receiving cavity 31 and at least one second communicating air hole 223 return to the airflow of the modified air conditioning subspace 271, thereby causing the gas of the modified air conditioning subspace 271 to enter the receiving cavity via the first communication hole 222. 31, and the gas in the accommodating chamber 31 is introduced into the modified atmosphere sub-space 271 via the second communication hole 223, thereby forming an air flow via the air-conditioning membrane module 30.
  • the fan 60 is disposed at the position of the accommodating cavity 31 above the at least one first communication hole 222, which causes the gas of the modified atmosphere sub-space 271 to enter the accommodating cavity 31 via the at least one first communication hole 222, and the inside of the accommodating cavity 31
  • the gas enters the modified-air-preserving sub-space 271 via the at least one second communication hole 223 to receive oxygen from the gas passing through the gas regulating membrane module 30.
  • the fan 60 is preferably a centrifugal fan and can be disposed at the first communication hole 222 in the gas collection chamber 31. That is, the centrifugal fan 60 is located above the at least one first communication hole 222, and the air inlet is directed to the first communication hole 222. The air outlet of the centrifugal fan 60 can face the air conditioning membrane module 30. At least one second communication hole 223 may be located below the air conditioning membrane module 30.
  • the top wall of the first drawer body 22 includes a lower plate portion 224 and a cover portion 225, which together define a receiving cavity 31.
  • an upper surface of the lower plate portion 224 may form a recessed groove, and the cover portion 225 is covered in the recessed groove.
  • At least one first communication hole 222 is disposed at a front portion of the top wall, and at least one second communication hole 223 is disposed at a rear portion of the top wall.
  • the centrifugal fan 60 is disposed at the front of the accommodating chamber 31, and the air conditioned membrane module 30 is disposed at the rear of the accommodating chamber 31.
  • the gas regulating membrane module 30 has a gas regulating membrane 36 and an oxygen-rich gas collecting chamber, and one side of the gas regulating membrane 36 faces the oxygen-rich gas collecting chamber so that the pressure in the oxygen-rich gas collecting chamber is smaller than the other side of the gas regulating membrane 36 At the time of the pressure, oxygen in the air on the other side of the gas-conditioning membrane 36 is passed through the gas regulating membrane 36 into the oxygen-rich gas collecting chamber.
  • the air-conditioning membrane module 30 can be in contact with the circulation flow path (ie, the accommodating chamber 31) that communicates with the modified atmosphere sub-space 271, so that the pressure in the oxygen-rich gas collection chamber can be less than the pressure of the modified-air-preserving sub-space 271.
  • the oxygen in the gas in the accommodating chamber 31 (from the modified atmosphere sub-space 271) is more transmitted through the gas-regulating membrane into the oxygen-rich gas collecting chamber than the nitrogen in the space airflow around the gas regulating membrane module 30. That is, the fan 60 forms oxygen in the gas stream to pass through the gas regulating membrane more than the nitrogen gas into the oxygen-rich gas collecting chamber.
  • the plurality of first sealing members 71 may adopt the same structure, and the specific sizes may be set to be the same or different as needed.
  • the air conditioning membrane module 30 may be in the form of a flat plate, and the air conditioning membrane module 30 may further include a support frame 32.
  • the support frame 32 has first and second surfaces parallel to each other, formed with a plurality of airflow passages extending on the first surface, extending on the second surface, and extending through the support frame to communicate the first surface and the second surface A plurality of gas flow channels collectively form an oxygen-rich gas collection chamber.
  • the air-conditioning membrane 36 can be two layers, which are respectively laid on both sides of the support frame 32 to close the oxygen-rich gas collecting chamber, and each layer of the air-conditioning membrane 36 can be formed by laminating one or more gas-regulating membranes.
  • the gas permeating through the gas regulating membrane 36 is a complicated process, and the permeation mechanism is generally that the gas molecules are first adsorbed to the surface of the gas regulating membrane 36, and then the difference in dissolution and diffusion coefficients in the gas regulating membrane in the gas regulating membrane 36 is observed. To achieve gas separation.
  • the oxygen having a high permeation rate is concentrated on the permeate side of the gas regulating membrane 36 to be concentrated in the oxygen-rich gas collecting chamber.
  • the support frame 32 may include a frame, a rib plate and/or a flat plate disposed in the frame, and an air flow passage between the ribs, between the ribs and the flat plate, and the surface of the rib and the surface of the flat plate may be A groove is formed to form an air flow passage.
  • the ribs and/or the flat plate may increase the structural strength and the like of the air-conditioning membrane module 30. That is, the support frame 32 has a first surface and a second surface that are parallel to each other, and a plurality of airflow passages communicating with the first surface and the second surface are formed inside. Road. Two gas regulating films 36 are respectively laid on the first surface and the second surface of the support frame 32 to form an oxygen-rich gas collecting chamber together with a plurality of gas flow passages of the support frame 32.
  • the support frame 32 includes a venting aperture 33 in communication with the plurality of airflow passages described above, disposed on the rim 32 to allow oxygen in the oxygen-rich gas collection chamber to be output.
  • the air suction hole 33 is in communication with the air suction device 41.
  • the air-conditioning film 36 is first attached to the frame by the double-sided tape 34 and then sealed by the sealant 35.
  • the plurality of airflow passages formed inside the support frame 32 may be one or more cavities in communication with the suction holes 33. In some embodiments, the aforementioned plurality of airflow channels formed inside the support frame 32 may have a mesh structure.
  • the support frame 32 may include a frame, a rib plate and/or a flat plate disposed in the frame, and an air flow passage between the ribs, between the ribs and the flat plate, the surface of the rib plate, and the surface of the flat plate. Grooves may be formed in the upper portion to form an air flow passage.
  • the ribs and/or the flat plate may increase the structural strength and the like of the air-conditioning membrane module 30.
  • the support frame 32 has first and second surfaces parallel to each other, and the support frame 32 is formed to extend on the first surface, extend on the second surface, and penetrate the support frame 32 to communicate the first surface and the second surface.
  • the support frame 32 is formed with a plurality of first air flow passages extending on the first surface and a plurality of second air flow passages extending on the second surface, and the first air flow passage and the second air flow passage They are connected by a third air flow passage. All of the gas flow channels together form an oxygen-rich gas collection chamber.
  • the one or more air-conditioning membranes form two planar air-conditioning membrane layers which are respectively laid on the first surface and the second surface of the support frame to form a flat-shaped air-conditioning membrane module 30.
  • the support frame 32 is formed with a suction hole 33 communicating with the above-described air flow passage, and the air suction hole 33 communicates with the oxygen-rich gas collecting chamber for connecting the inlet end of the air pump 40, thereby allowing the oxygen-rich gas in the oxygen-rich gas collecting chamber to be output.
  • the oxygen-enriched gas collecting chamber 38 is in a negative pressure state, and oxygen in the air outside the gas regulating membrane module 30 continues to pass through the gas regulating membrane 36 into the oxygen-rich gas collecting chamber.
  • the support frame 32 as a whole may have a generally rectangular frame.
  • the support frame 32 can include a bezel, a plurality of first ribs, and a plurality of second ribs.
  • the plurality of first ribs are longitudinally spaced apart inside the frame and extend in the lateral direction, and one side surface of the plurality of first ribs forms a first surface.
  • a plurality of second ribs are laterally spaced apart and extend in a longitudinal direction on the other side surface of the plurality of first ribs, and a side surface of the plurality of second ribs away from the first rib forms a second surface . That is, the plurality of second ribs are disposed on one side surface of the plurality of first ribs.
  • the surfaces of the plurality of first ribs and the plurality of second ribs respectively form a first surface and a second surface; that is, surfaces of the plurality of first ribs and the plurality of second ribs Forming a first surface; a surface of the plurality of second ribs opposite to the plurality of first ribs forming a second surface.
  • a plurality of airflow passages are formed between adjacent first ribs, between adjacent second ribs, and between adjacent first ribs and second ribs.
  • the gap between the two adjacent first ribs forms a first air flow passage extending on the first surface
  • the gap between the two adjacent second ribs forms a second extension on the second surface
  • the two air flow passages, the gap between the adjacent first ribs and the second ribs form a third air flow passage that penetrates the first surface and the second surface through the support frame 32. That is, the intersecting structure formed by all of the first ribs and all of the second ribs forms the aforementioned plurality of air flow passages.
  • the support frame 32 is provided with a plurality of first ribs extending longitudinally and extending in the lateral direction inside the frame and a plurality of second ribs extending laterally and longitudinally on one side surface of the plurality of first ribs.
  • the plate thus ensures the continuity of the air flow passage on the one hand, and greatly reduces the volume of the support frame on the other hand, and greatly enhances the strength of the support frame 32.
  • the above structure of the support frame 32 ensures that the air-conditioning membrane 36 can obtain sufficient support, and can maintain a good flatness even in the case of a large negative pressure inside the oxygen-rich gas collecting chamber, thereby ensuring the gas regulating film.
  • the service life of assembly 30 is provided with a plurality of first ribs extending longitudinally and extending in the lateral direction inside the frame and a plurality of second ribs extending laterally and longitudinally on one side surface of the plurality of first ribs.
  • the air vent 33 may be disposed on the lateral side of the frame in the longitudinal middle portion of the frame. This arrangement is equivalent to pumping air from the center of the air-conditioning membrane module 30, which is advantageous for the air-conditioning membrane 36 to be uniformly ventilated.
  • the air vent 33 can be a stepped hole or a stepped hole to When it is connected to the air pump 40 via a hose, the airtightness of the joint is ensured.
  • the above structure of the support frame 32 ensures that the air-conditioning membrane 36 can obtain sufficient support, and can maintain a good flatness even in the case of a large negative pressure inside the oxygen-rich gas collecting chamber, thereby ensuring the gas regulating film.
  • the service life of assembly 30 ensures that the air-conditioning membrane 36 can obtain sufficient support, and can maintain a good flatness even in the case of a large negative pressure inside the oxygen-rich gas collecting chamber, thereby ensuring the gas regulating film.
  • the intake end of the air pump 40 is connected to the air suction hole 33 via the air suction line 51 to communicate with the oxygen-rich gas collecting chamber of the air conditioning membrane module 30 in the plurality of first airtight components 71, and is configured to set the oxygen-rich gas collecting chamber
  • the gas is extracted outward to continuously reduce the oxygen content in the modified atmosphere sub-space 271, thereby forming a gas atmosphere rich in nitrogen and oxygen in the modified atmosphere sub-space 271 to facilitate food preservation.
  • the air pump 40 can be disposed in the compressor compartment 24, and can fully utilize the space of the compressor compartment 24 without occupying other places, so that the extra volume of the refrigerating and freezing apparatus is not increased, and the structure of the refrigerating and freezing apparatus can be made compact.
  • the controller 110 can control the above-described refrigerating system 70 and the fresh air preserving system 80, and judge the starting condition and the shutdown condition of the refrigerating system 70 and the fresh air preserving system 80.
  • Control of the modified atmosphere freshening system 80 therein may include control of the blower 60 and the extraction pump 40.
  • Figure 8 is a schematic block diagram of a control system of a refrigerating and freezing apparatus in accordance with one embodiment of the present invention.
  • the modified atmosphere storage opening/closing detecting device 82 and the refrigerating chamber opening and closing detecting device 72 can be used to detect the compartment (for example, the refrigerating chamber 27) where the modified atmosphere subspace 271 is located, and the modified atmosphere subspace 271 is opened and closed.
  • the event uses a Hall device or a magnetic sensitive device to detect the opening and closing action of the door body or the opening and closing action of the end plate of the drawer body 23 and the drawer cylinder 22.
  • the modified-air-preserving sub-space opening and closing detecting means 82 may be respectively disposed on the end plate of the drawer body 23 and the drawer cylinder 22; the refrigerating compartment opening and closing detecting means 72 can be respectively disposed on the casing 20 and the corresponding door body.
  • the temperature sensor 84 is for detecting the temperature of the storage compartment in the refrigerating and freezing apparatus, and may include, for example, a refrigerating temperature sensor provided in the refrigerating compartment 27, a freezing temperature sensor in the freezing compartment 25, and a temperature change sensor in the changing chamber 26.
  • the temperature value detected by temperature sensor 84 can be used to compare with the set temperature to determine if refrigeration system 70 (including compressor and refrigeration fan, chiller, damper) is required to be activated.
  • the oxygen concentration sensor 87 is disposed in the modified atmosphere sub-space 271 for measuring the gas atmosphere index in the modified atmosphere sub-space 271. It can use various types of oxygen concentration sensors such as diaphragm type galvanic battery type, electrochemical, catalytic combustion, constant potential electrolytic type, etc. In some alternative embodiments, the oxygen concentration sensor 87 can also be replaced by a gas analyzer. For measuring the gas content in the modified atmosphere sub-space 271, including the oxygen content, may also include nitrogen content, carbon dioxide content, and the like. The oxygen concentration sensor 87 can be configured as desired, and in some embodiments, can be controlled by controlling the start-stop time of the modified atmosphere storage system 80 without having to control the oxygen concentration.
  • the alarm reminder 86 can present information to the user by means of display, sound and light, remote alarm, and the like.
  • the controller 110 as the control core of the refrigerating and freezing device of the embodiment, can be configured and controlled by various microprocessors (including a single chip microcomputer, a digital signal processor, etc.) and its auxiliary circuits (power source, memory, clock circuit). The program is implemented. In order to ensure the coordinated operation of the refrigeration system 70 and the modified atmosphere preserving system 80, in the refrigerating and freezing apparatus of the present embodiment, the controller 110 may determine whether to allow the modified atmosphere preserving system 80 to start work by setting a fresh-keeping operation indicator.
  • the freshness running indicator may be a flag in a register of the controller 110, which includes at least two states: respectively indicating that the modified atmosphere preservation system 80 is allowed to operate and the modified atmosphere preservation system 80 is prohibited from operating.
  • the controller 110 may first acquire the fresh running indicator of the modified atmosphere preservation system 80.
  • the freshness keeping indicator is set according to an operation event of the refrigerating and freezing apparatus, and indicates whether or not the modified atmosphere preservation system 80 is allowed to operate.
  • the operation events of the refrigerating and freezing apparatus include at least an operation timing of the refrigerating and freezing apparatus, an opening and closing event of the refrigerating system 70, an event in which the storage space is opened and closed, and an event in which the modified air preserving subspace 271 is opened and closed.
  • the operation events of the above-described refrigerating and freezing apparatus can be determined by various sensors provided by the refrigerating and freezing apparatus, detection means, and control commands issued by the controller 110.
  • the running time of the refrigerating and freezing device can be determined by the clock of the refrigerating and freezing device
  • the start-stop event of the refrigerating system 70 can be determined by detecting the state of the compressor or by a control command sent from the controller 110 to the refrigerating system 70, and the storage space is opened.
  • the closed event can be detected by the refrigerator compartment opening/closing detecting device 72, and the event that the air-conditioning fresh-keeping subspace 271 is opened and closed can be detected by the air-conditioning fresh-keeping subspace 271 opening and closing detecting device 82.
  • the controller 110 may determine whether the modified atmosphere freshening system 80 satisfies the preset starting condition, and if the starting condition is satisfied, start the modified atmosphere freshening system 80 to The gas of the modified atmosphere sub-space 271 is adjusted until the modified atmosphere storage system 80 reaches a preset shutdown condition.
  • the process of the controller 110 setting the fresh-keeping running identifier may include: setting the fresh-keeping running identifier to a prohibited state in an initial state.
  • the freshness operation flag is set to the prohibition state, and after the first preset time of the refrigeration system 70 is turned off, the freshness operation flag is set to the permission state.
  • the fresh-keeping running flag is set to the prohibited state, and after waiting for the frequent opening time period to elapse, the fresh-keeping running flag is set to the permitted state.
  • the fresh-keeping running flag is set to the prohibited state, and after the second preset time when the storage space is closed and the modified-air-preserving sub-space 271 is continuously closed for the third preset time, Set the freshness run flag to the allowed state.
  • the first preset time, the second preset time, and the third preset time may be set according to operating conditions and specifications of the refrigerating and freezing device.
  • the first preset time may be determined according to the time when the compressor is stopped after the refrigeration system 70 is turned off and the heat dissipation reaches a certain degree, thereby avoiding heat accumulation and noise superposition of the air pump 40 and the compressor.
  • the second preset time may be set according to the time when the refrigeration system 70 resumes normal operation after the door of the storage compartment is closed.
  • the third preset time may be set according to the gas leakage condition of the modified atmosphere sub-space 271.
  • the modified atmosphere-preserving sub-space 271 may not be opened, and the nitrogen-rich and oxygen-poor gas atmosphere cannot satisfy the fresh-keeping storage.
  • the required time is set.
  • the frequent opening period of the refrigerating and freezing device can be summarized according to the user's usage habits, for example, the daily opening period is more than the predetermined number of times in the daily cycle.
  • the controller 110 can determine the power-on condition according to the operation state of the modified air-conditioning subspace 271 and the modified atmosphere preservation system 80.
  • the determination of the startup and shutdown conditions can be made based on the oxygen concentration.
  • the optimal storage environment of different kinds of foods may have different oxygen concentration ranges.
  • the oxygen concentration range corresponding to the plurality of types of foods may be determined in advance by testing, and the user inputs through the user input in the modified atmosphere sub-space 271.
  • the automatic identification method determines the type information of the food and determines the corresponding oxygen concentration range.
  • the starting condition may be that the oxygen concentration of the modified atmosphere sub-space 271 is higher than or equal to a preset upper limit of the oxygen concentration, that is, in the case that the oxygen concentration of the modified air-preserving sub-space 271 is higher than or equal to the upper limit of the oxygen concentration, the startup is required.
  • the air pump 40 and the fan 60 The shutdown condition may be that the oxygen concentration of the modified atmosphere sub-space 271 is lower than or equal to a preset lower limit of the oxygen concentration, that is, when the oxygen concentration of the modified atmosphere sub-space 271 is higher than or equal to the upper limit of the oxygen concentration, the pumping needs to be turned off.
  • the air pump 40 and the fan 60 complete the air conditioning and fresh-keeping operation.
  • Another optional on-off condition may be that the pumping efficiency of the air pump 40 and the gas leakage of the modified air conditioning subspace 271 are tested in advance, and the time for the air pump 40 to complete the air conditioning and air pumping is determined.
  • the booting condition may include: the time from the last modified atmosphere storage system 80 to complete the gas adjustment of the modified atmosphere sub-space 271 exceeds the fifth preset time.
  • the corresponding shutdown conditions may include: modified atmosphere preservation system The 80 continuous operation reaches the sixth preset time.
  • the fifth preset time may also be adjusted according to the operating state of the modified air conditioning subspace 271. For example, the air conditioning fresh subspace 271 is not continuously opened for a relatively long period of time, and the fifth preset time may be appropriately extended.
  • the fresh-keeping running indicator of the modified atmosphere fresh-keeping system 80 can be continuously monitored, and if the fresh-keeping running indicator is set to the prohibited state (that is, the fresh-keeping running flag needs to be set to be prohibited)
  • the state of the refrigerating and freezing device operating time for example, the refrigeration system 70 is turned on, the storage space is opened, and the like, and the activated gas fresh-keeping system 80 is turned off.
  • the controller 110 preferably activates the refrigeration system 70 to ensure that the temperature of the storage space meets the storage requirements, and then controls the modified atmosphere preservation system 80 accordingly, thereby avoiding interaction between the modified atmosphere preservation system 80 and the refrigeration system 70, and simultaneously The influence of the user's normal use of the refrigerating and freezing device is avoided, and the user experience is improved.
  • the embodiment further provides a controlled atmosphere freshening control method for the refrigerating and freezing device, which can be executed by the controller 110 to control the modified atmosphere storage system 80 of the refrigerating and freezing device of the above embodiment, thereby Guarantee the effect of keeping the atmosphere fresh.
  • 9 is a schematic diagram of a controlled atmosphere freshening control method of a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • the modified atmosphere freshening control method of the refrigerating and freezing apparatus of this embodiment may generally include:
  • Step S902 obtaining a fresh-keeping operation identifier of the modified atmosphere fresh-keeping system 80
  • Step S904 if the fresh-keeping operation indicator is to allow the operation of the modified atmosphere fresh-keeping system 80, it is determined whether the modified-air preservation system 80 satisfies the preset power-on condition;
  • step S906 the air conditioning system 80 is activated to adjust the gas of the modified air conditioning subspace 271 until the preset air conditioning system 80 reaches the preset shutdown condition.
  • Step S902 can determine whether the modified atmosphere preservation system 80 is allowed to operate under the current working condition according to the freshness running indicator.
  • the fresh-keeping operation indicator is set according to an operation event of the refrigerating and freezing device, and indicates whether the operation of the fresh-keeping and fresh-keeping system 80 is permitted.
  • the operation events of the refrigerating and freezing device include at least: an operation time of the refrigerating and freezing device, a start-stop event of the refrigerating system 70, The event that the storage space is opened and closed, and the event that the modified atmosphere subspace 271 is opened and closed.
  • the influencing factors affecting the setting of the fresh-keeping operation mark include at least the state of the refrigeration system 70, the prediction of the user using the refrigerating and freezing device, and the opening event of the refrigerating and freezing device.
  • the step of setting the freshness running indicator according to the running event of the refrigerating and freezing device may include:
  • the freshness operation flag is set to the prohibition state, and after the first predetermined time when the refrigeration system 70 is turned off, the freshness operation flag is set to the permission state.
  • the fresh-keeping running flag After entering the frequent opening time period of the refrigerating and freezing device, the fresh-keeping running flag is set to the prohibited state, and after waiting for the frequent opening time period to elapse, the fresh-keeping running flag is set to the permitted state.
  • the fresh-keeping running flag is set to a prohibited state; and after the second preset time when the storage space is closed and the modified-air-preserving sub-space 271 is continuously closed for the third preset time, Set the freshness run flag to the allowed state.
  • the first preset time, the second preset time, and the third preset time may be set according to operating characteristics of the refrigerating and freezing device. For example, the first preset time may be determined according to the time when the compressor is stopped after the refrigeration system 70 is turned off and the heat dissipation reaches a certain degree, thereby avoiding heat accumulation and noise superposition of the air pump 40 and the compressor.
  • the second preset time may be set according to the time when the refrigeration system 70 resumes normal operation after the door of the storage compartment is closed.
  • the third preset time may be set according to the gas leakage condition of the modified atmosphere sub-space 271. For example, according to the test, the modified atmosphere-preserving sub-space 271 may not be opened, and the nitrogen-rich and oxygen-poor gas atmosphere cannot satisfy the fresh-keeping storage. The required time is set.
  • the frequent opening period of the refrigerating and freezing device can be summarized according to the user's usage habits, for example, the daily opening period is more than the predetermined number of times in the daily cycle.
  • the modified atmosphere sub-space 271 After the storage space is closed, if the modified atmosphere sub-space 271 remains open for more than the fourth preset time In the meantime, output a sealed alarm message. That is, if there is a door body in which the user has closed the refrigerating and freezing compartment, but the appliance for sealing the air conditioning sub-space 271 is not closed, for example, in the case where the drawer body 23 is closed, a prompt can be made to avoid the inability to ensure the gas. The seal of the fresh-keeping sub-space 271 is adjusted.
  • the controller 110 can determine the power-on condition according to the operation state of the modified air-conditioning subspace 271 and the modified atmosphere preservation system 80.
  • the determination of the startup and shutdown conditions can be made based on the oxygen concentration.
  • the oxygen concentration range corresponding to the plurality of types of foods may be determined in advance by testing, and when the food is placed in the modified atmosphere sub-space 271, the type information of the food is determined by user input or automatic identification to determine Corresponding oxygen concentration range. Therefore, the starting condition may be that the oxygen concentration of the modified atmosphere sub-space 271 is higher than or equal to a preset upper limit of the oxygen concentration, that is, in the case that the oxygen concentration of the modified air-preserving sub-space 271 is higher than or equal to the upper limit of the oxygen concentration, the startup is required.
  • the air pump 40 and the fan 60 are examples of the oxygen concentration of the modified atmosphere sub-space 271.
  • the shutdown condition may be that the oxygen concentration of the modified atmosphere sub-space 271 is lower than or equal to a preset lower limit of the oxygen concentration, that is, when the oxygen concentration of the modified atmosphere sub-space 271 is higher than or equal to the upper limit of the oxygen concentration, the pumping needs to be turned off.
  • the air pump 40 and the fan 60 complete the air conditioning and fresh-keeping operation.
  • Another optional on-off condition may be that the pumping efficiency of the air pump 40 and the gas leakage of the modified air conditioning subspace 271 are tested in advance, and the time for the air pump 40 to complete the air conditioning and air pumping is determined.
  • the booting condition may include: the time from the last modified atmosphere storage system 80 to complete the gas adjustment of the modified atmosphere sub-space 271 exceeds the fifth preset time.
  • the corresponding shutdown condition may include: the time during which the modified atmosphere preservation system 80 continues to operate reaches a sixth preset time.
  • the fifth preset time may also be adjusted according to the operating state of the modified air conditioning subspace 271. For example, the air conditioning fresh subspace 271 is not continuously opened for a relatively long period of time, and the fifth preset time may be appropriately extended.
  • the fresh-keeping operation mark of the modified atmosphere fresh-keeping system 80 can be continuously monitored, and if the fresh-keeping running mark is set to the prohibited state (that is, the fresh-keeping running flag needs to be set to the prohibited state)
  • the operation time of the refrigerating and freezing device for example, the refrigeration system 70 is turned on, the storage space is opened, and the like, and the activated atmosphere fresh-keeping system 80 is turned off.
  • FIG. 10 is a schematic block diagram of a method for controlling a fresh air conditioning of a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • the refrigerating and freezing apparatus may cyclically perform the following steps after power-on:
  • step S1002 the refrigerating and freezing apparatus is powered on, initialized, and the refrigeration system 70 and the fresh air preserving system 80 are turned off, and the compressor and the electromagnetic valve of the refrigeration system 70 are closed, and the air pump 40 and the fan 60 of the air conditioning system 80 are closed.
  • step S1004 the operating condition data of the refrigerating and freezing device is collected, including the temperature of the storage space, the oxygen concentration of the modified atmosphere sub-space 271, and the opening and closing of the door body.
  • step S1006 the control flow of the refrigeration system 70 is executed.
  • step S1008 the fresh-keeping running identifier is determined.
  • step S1010 the control flow of the modified atmosphere freshening system 80 is executed.
  • the refrigeration system 70 takes precedence over the modified atmosphere preservation system 80 during coordinated control.
  • FIG. 11 is a schematic flow chart showing the determination of the air-conditioning preservative subspace 271 after the air-conditioning fresh-keeping subspace 271 is closed in the air-conditioning preserving control method of the refrigerating and freezing apparatus according to an embodiment of the present invention.
  • the refrigerating and freezing apparatus can perform the following steps after the modified air-preserving sub-space 271 is closed. :
  • Step S1102 detecting that the modified atmosphere sub-space 271 is closed, starting to control the air-conditioning preservation system 80;
  • Step S1104 determining whether the refrigeration system 70 is in operation, and if not, ending the determination;
  • Step S1106 determining whether the closing time of the modified air conditioning subspace 271 exceeds a preset time, for example, shown in the figure. 30 minutes, if no, the judgment is over, waiting for 30 minutes to re-judge;
  • Step S1108 determining whether it is currently in the frequent opening time period, and if so, ending the determination;
  • step S1110 it is determined whether the air conditioning fresh-starting condition is met, for example, the oxygen concentration is raised to a preset upper limit of the oxygen concentration, and if not, the determination is ended;
  • step S1112 the modified atmosphere preservation system 80 is started.
  • Fig. 12 is a schematic view showing the start-up determination of the modified atmosphere freshening system 80 based on the oxygen concentration in the controlled atmosphere freshening control method of the refrigerating and freezing apparatus according to an embodiment of the present invention.
  • the refrigerating and freezing apparatus of this embodiment can perform the following steps when performing the air conditioning control:
  • Step S1202 initializing the oxygen concentration sensor 87 to start detecting the oxygen concentration in the modified atmosphere sub-space 271;
  • Step S1204 determining whether it is currently in the frequent opening time period, and if so, keeping the air conditioning fresh-keeping system 80 closed, ending the judgment;
  • Step S1206 whether the door body of the refrigerating and freezing device is opened, and if so, keeping the air conditioning system 80 closed, and ending the judgment;
  • Step S1210 if the refrigeration system 70 is running, it is determined whether the current time is a period of user activity, for example, whether it is currently between 6 o'clock and 22 o'clock, during which time the compressor is not allowed to operate under any working condition.
  • the modified atmosphere preservation system 80 is simultaneously activated;
  • Step S1212 if the refrigeration system 70 is running, but is not currently a period of user activity, for example, in a period of 22 o'clock to 6 o'clock, determining whether the compressor frequency is greater than a set frequency threshold, the frequency threshold may be according to a compressor The operating parameters are set, for example, set to 40 Hz. If the operating frequency of the compressor exceeds the frequency threshold, the modified atmosphere freshening system 80 is not allowed to start at the same time, and the air conditioning system 80 is kept closed, and the judgment is ended;
  • Step S1214 determining whether the modified atmosphere preservation system 80 is running when the refrigeration system 70 is not activated or the compressor is operating at a condition lower than the frequency threshold during a period other than the user's activity;
  • Step S1216 if the modified atmosphere storage system 80 is running, determining whether the oxygen concentration of the modified atmosphere subspace 271 is lower than a preset lower limit of the oxygen concentration until the oxygen concentration of the modified atmosphere subspace 271 is decreased to a lower limit of the preset oxygen concentration;
  • Step S1218 closing the modified atmosphere preservation system 80
  • Step S1220 if the modified atmosphere preservation system 80 is not operated, it is determined whether the oxygen concentration of the modified atmosphere sub-space 271 is higher than a preset oxygen concentration upper limit;
  • step S1222 the atmosphere fresh-keeping system 80 is activated in the case where the oxygen concentration of the modified atmosphere sub-space 271 is higher than the upper limit of the preset oxygen concentration.
  • the breakpoint identification is performed, and the emergency interrupt process is executed preferentially, and the step of returning the breakpoint identification after completion is continued to be executed cyclically.
  • the above upper limit of the oxygen concentration and the lower limit of the oxygen concentration may be set according to the type of food placed in the modified atmosphere sub-space 271.
  • the oxygen concentration range corresponding to the plurality of types of foods may be determined in advance by testing, and the type information of the food is determined by user input or automatic identification to determine a corresponding oxygen concentration range.
  • the starting condition may be that the oxygen concentration of the modified air conditioning subspace 271 is higher than or equal to a preset upper limit of the oxygen concentration
  • the shutdown condition is that the oxygen concentration of the modified air conditioning subspace 271 is lower than or equal to a preset lower limit of the oxygen concentration
  • Fig. 13 is a schematic diagram showing the start-up determination of the modified atmosphere fresh-keeping system 80 according to time in the controlled atmosphere fresh-keeping control method of the refrigerating and freezing apparatus according to an embodiment of the present invention.
  • the refrigerating and freezing apparatus of this embodiment can perform the following steps when performing the air conditioning control:
  • Step S1302 initializing, obtaining the current time
  • Step S1304 determining whether it is currently in the frequent opening time period, and if so, keeping the air conditioning fresh-keeping system 80 closed, and ending the judgment;
  • Step S1306 whether the door body of the refrigerating and freezing device is opened, and if so, keeping the air conditioning system 80 closed, End judgment
  • Step S1310 if the refrigeration system 70 is running, it is determined whether the current time is a period of user activity, for example, whether it is currently between 6 o'clock and 22 o'clock, during which time the compressor is not allowed to be in any working condition.
  • the fresh-keeping system 80 is activated at the same time;
  • Step S1313 if the refrigeration system 70 is running, but is not currently a period of user activity, for example, in a period of 22 o'clock to 6 o'clock, determining whether the compressor frequency is greater than a set frequency threshold, the frequency threshold may be according to a compressor The operating parameters are set, for example, set to 40 Hz. If the operating frequency of the compressor exceeds the frequency threshold, the modified atmosphere freshening system 80 is not allowed to start at the same time, and the air conditioning system 80 is kept closed, and the judgment is ended;
  • Step S1314 determining whether the modified atmosphere preservation system 80 is running when the refrigeration system 70 is not activated or the compressor is operating at a time lower than the frequency threshold for a period other than the user's activity;
  • Step S1316 if the modified atmosphere preservation system 80 is running, it is determined whether the running time of the modified atmosphere preservation time has exceeded a sixth preset time;
  • Step S1318 closing the modified atmosphere preservation system 80
  • step S1320 if the modified atmosphere preservation system 80 is not in operation, it is determined whether the time from the last modified atmosphere storage system 80 to complete the gas adjustment of the modified atmosphere subspace 271 exceeds a fifth preset time;
  • Step S1322 in the case of determining that the time from the last modified atmosphere storage system 80 to complete the gas adjustment of the modified atmosphere sub-space 271 exceeds the fifth predetermined time, start the modified atmosphere preservation system 80;
  • Step S1324 determining whether the modified air preserving subspace 271 is not turned on for the seventh preset time
  • step S1326 if the modified atmosphere subspace 271 is not turned on for the seventh preset time, the fifth preset time and the sixth preset time are reset, and the seventh preset time may be a relatively long period of time, and may be set to 1 Days or 10 hours, so that the fifth preset time and the sixth preset time are appropriately extended in the case where the modified atmosphere sub-space 271 is not turned on for a long time.
  • the fifth preset time and the sixth preset time may be tested according to the pumping efficiency of the air pump 40 and the gas leakage condition of the modified air conditioning subspace 271, and the air pump 40 completes the air conditioning and fresh air pumping.
  • the time is taken as the sixth preset time, and the time in which the gas in the modified atmosphere sub-space 271 naturally leaks to the oxygen concentration cannot meet the freshness requirement is taken as the fifth preset time.
  • the execution sequence of the flow in the above process can be flexibly adjusted according to requirements, and various conditions and parameters used can be adjusted according to the operating conditions and specifications of the refrigerating and freezing device to ensure that the fresh-keeping operation flag is set to the allowable state.
  • the starting condition is judged.
  • the refrigerating and freezing apparatus of the present embodiment and the controlled atmosphere freshening control method thereof creatively propose to use a gas regulating membrane (for example, an oxygen-rich membrane) module to discharge oxygen in the air in the sealed modified atmosphere sub-space 271 out of the space, thereby
  • a gas regulating membrane for example, an oxygen-rich membrane
  • the space is rich in nitrogen-rich oxygen or other gas atmospheres that are good for food preservation.
  • the nitrogen-rich and oxygen-poor gas atmosphere can reduce the oxygen content in the storage space of fruits and vegetables, reduce the aerobic respiration of fruits and vegetables, and at the same time ensure the basic respiration and prevent anaerobic respiration of fruits and vegetables, thereby achieving the purpose of long-term preservation of fruits and vegetables.
  • the present invention optimizes the startup control logic of the modified atmosphere freshening system 80, and sets the conditions for allowing the modified atmosphere freshening system 80 to start by using the fresh-keeping operation indicator, thereby avoiding the interaction between the modified atmosphere fresh-keeping system 80 and the refrigeration system 70, and avoiding Corresponding to the user's normal use of the refrigerating and freezing device, the user's experience is improved.

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Abstract

Provided is a refrigerating and freezing device. The refrigerating and freezing device comprises a storage space, an air-regulating fresh-keeping system (80), and a refrigerating system (70). A sealed air-regulating fresh-keeping subspace is formed in the storage space. The air-regulating fresh-keeping system (80) comprises an air-regulating membrane assembly (30) and an air extracting pump (40). The air extracting pump (40) is configured to make gas in the air-regulating fresh-keeping subspace permeate through the air-regulating membrane assembly (30).

Description

冷藏冷冻装置及其气调保鲜控制方法Refrigeration and freezing device and control method thereof
本申请要求了申请日为2016年12月09日，申请号为201611132028.6，发明名称为“冷藏冷冻装置及其气调保鲜控制方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。The present application claims the priority of the Chinese patent application entitled "Refrigeration and Freezer and Its Controlled Fresh-keeping Control Method" on December 12, 2016, the application number is 201611132028.6, the entire contents of which are incorporated herein by reference. In the application.
技术领域Technical field
本发明涉及储物技术领域，特别是涉及一种冷藏冷冻装置及其气调保鲜控制方法。The invention relates to the field of storage technology, in particular to a refrigerating and freezing device and a controlled atmosphere freshening control method thereof.
背景技术Background technique
食物是人们生存的能量来源，对于人们来说至关重要。对于食品储藏，主要的两个方面为保温和保鲜，一般而言，温度对于食品上的微生物活动、食品中的酶的作用具有明显的影响，温度的降低会使食物延缓变质，冰箱是保持恒定低温的一种制冷设备，也是一种使食物或其他物品保持恒定低温冷态的民用产品。Food is the source of energy for people to survive and is vital to people. For food storage, the two main aspects are heat preservation and preservation. Generally speaking, temperature has a significant effect on the microbial activity on food and the action of enzymes in food. The decrease in temperature will delay the deterioration of food, and the refrigerator will remain constant. A low-temperature refrigeration device is also a civilian product that keeps food or other items at a constant low temperature.
随着生活品质的提高，消费者对储存食品的保鲜的要求也越来越高，特别是对食物的色泽、口感等的要求也越来越高。因此，储存的食物也应当保证在储存期间，食物的色泽、口感、新鲜程度等尽可能的保持不变。因此用户对冰箱的保鲜技术也提出了更高的要求。With the improvement of the quality of life, consumers are increasingly demanding the preservation of stored foods, especially the requirements for the color and taste of foods. Therefore, the stored food should also ensure that the color, taste, freshness, etc. of the food remain as constant as possible during storage. Therefore, users have put forward higher requirements for the preservation technology of the refrigerator.
现有技术中冰箱的保鲜技术主要采用真空保鲜技术，真空保鲜食物排除了包装容器中的部分空气(氧气)，破坏了细菌和微生物滋生的条件，从而有效地防止食品腐败变质。目前经常采用的真空保鲜方式为真空袋保鲜和真空储物间室保鲜。In the prior art, the fresh-keeping technology of the refrigerator mainly adopts a vacuum preservation technology, and the vacuum fresh-keeping food excludes part of the air (oxygen) in the packaging container, destroying the conditions of growth of bacteria and microorganisms, thereby effectively preventing food spoilage and deterioration. The vacuum preservation methods currently used are vacuum bag preservation and vacuum storage room preservation.
采用真空袋保鲜，消费者每次存储食物都需要进行抽真空动作，操作麻烦，得不到消费者的喜爱。采用真空储物间室保鲜，由于箱体等为刚性结构，要保持真空状态，对抽真空***的要求很高，对冰箱的密封性能要求很高，每取放一件物品，涌进的新空气多，对冰箱能量的消耗较大。Vacuum bags are used for fresh-keeping, consumers need to carry out vacuuming operations every time they store food, which is troublesome and cannot be enjoyed by consumers. The vacuum storage compartment is used for fresh-keeping. Because the box body is a rigid structure, it is required to maintain a vacuum state. The vacuum system is highly demanded, and the sealing performance of the refrigerator is very high. Each time an item is taken, a new one is poured in. More air, the consumption of energy in the refrigerator is greater.
而且由于设置保鲜***，对原有的制冷***会产生一定的影响，例如保鲜***和制冷***同时启动，会导致噪音的叠加、用电负荷的叠加，同时由于缺乏对保鲜***的合理控制，容易导致保鲜效果下降、能耗提高的问题，这使得冰箱的冷藏冷冻装置配置食物保鲜功能难于实现。Moreover, due to the installation of the fresh-keeping system, it will have certain influence on the original refrigeration system. For example, the fresh-keeping system and the refrigeration system are simultaneously activated, which will lead to the superposition of noise and the superposition of electric load, and at the same time, due to the lack of reasonable control of the fresh-keeping system, it is easy. The problem of lowering the freshness preservation effect and increasing the energy consumption makes the refrigerator fresh-keeping function of the refrigerator difficult to realize.
发明内容Summary of the invention
本发明的一个目的是要提供一种成本较低、保鲜效果好的冷藏冷冻装置的气调保鲜控制方法。An object of the present invention is to provide a controlled atmosphere freshening control method for a refrigerating and freezing device having a low cost and good fresh-keeping effect.
本发明一个进一步的目的是要使得气调保鲜***与冷藏冷冻装置的制冷***可以协调工作，避免互相影响。A further object of the present invention is to enable the modified atmosphere freshening system and the refrigeration system of the refrigerating and freezing apparatus to work in coordination to avoid mutual influence.
本发明另一个进一步的目的是要简化气调保鲜***的控制复杂程度。Another further object of the invention is to simplify the control complexity of the modified atmosphere freshening system.
特别地，本发明提供了一种冷藏冷冻装置的气调保鲜控制方法，其中冷藏冷冻装置包括限定有储物空间的箱体、气调保鲜***、制冷***，其中，储物空间内形成有密闭的气调保鲜子空间，气调保鲜***包括气调膜组件以及抽气泵，抽气泵配置成使气调保鲜子空间的气体经过气调膜组件渗透，以在储物空间的气调保鲜子空间内形成利于食物保鲜的气体氛围，制冷***配置成向储物空间提供冷量，并且保鲜控制方法包括：获取气调保鲜***的保鲜运行标识，保鲜运行标识根据冷藏冷冻装置的运行事件进行设置，并且指示出是否允许气调保鲜***运行，冷藏冷冻装置的运行事件至少包括：冷藏冷冻装置的运行时刻、制冷***的启停事件、储物空间被开闭的事件、气调保鲜子空间被开闭的事件；在保鲜运 行标识为允许气调保鲜***运行的情况下，判断气调保鲜***是否满足预设开机条件，并在满足开机条件的情况下，启动气调保鲜***以对气调保鲜子空间的气体进行调节，直至气调保鲜***达到预设的关机条件。In particular, the present invention provides a controlled atmosphere freshening control method for a refrigerating and freezing apparatus, wherein the refrigerating and freezing apparatus includes a tank defining a storage space, a modified atmosphere preservation system, and a refrigeration system, wherein a sealed space is formed in the storage space. The modified atmosphere storage compartment includes a gas regulating membrane module and an air pump, and the air pump is configured to infiltrate the gas of the modified air conditioning subspace through the gas regulating membrane module to maintain a sub-storage space in the storage space. The gas atmosphere is formed to facilitate food preservation, the refrigeration system is configured to provide cooling capacity to the storage space, and the freshness control method comprises: obtaining a fresh-keeping operation mark of the modified atmosphere fresh-keeping system, and setting the fresh-keeping operation mark according to an operation event of the refrigeration and freezing device, And indicating whether the operation of the modified air freshening system is allowed, and the running events of the refrigerating and freezing device include at least: an operation time of the refrigerating and freezing device, a start-stop event of the refrigeration system, an event that the storage space is opened and closed, and an air-conditioned fresh-keeping subspace is opened. Closed event When the line identification is to allow the operation of the modified atmosphere fresh-keeping system, it is judged whether the modified atmosphere fresh-keeping system satisfies the preset start-up condition, and when the start-up condition is satisfied, the modified atmosphere fresh-keeping system is activated to adjust the gas of the modified air-preserving subspace. Until the modified atmosphere system reaches the preset shutdown condition.
可选地，根据冷藏冷冻装置的运行事件设置保鲜运行标识的步骤包括：在制冷***启动后，将保鲜运行标识设置为禁止状态，并在制冷***被关闭的第一预设时间后，将保鲜运行标识设置为允许状态。Optionally, the step of setting the fresh-keeping running identifier according to the running event of the refrigerating and freezing device comprises: setting the fresh-keeping running flag to a prohibited state after the cooling system is started, and keeping the fresh-keeping operation after the first preset time of the cooling system being turned off The run ID is set to the allowed state.
可选地，根据冷藏冷冻装置的运行事件设置保鲜运行标识的步骤包括：在进入冷藏冷冻装置的频繁开门时段后，将保鲜运行标识设置为禁止状态，并且在等待频繁开门时段经过后，将保鲜运行标识设置为允许状态。Optionally, the step of setting the fresh-keeping running identifier according to the running event of the refrigerating and freezing device comprises: setting the fresh-keeping running flag to a prohibited state after entering the frequent opening time period of the refrigerating and freezing device, and keeping the fresh-keeping operation after waiting for the frequent opening time period to pass The run ID is set to the allowed state.
可选地，根据冷藏冷冻装置的运行事件设置保鲜运行标识的步骤包括：在储物空间被打开后，将保鲜运行标识设置为禁止状态；以及在储物空间被关闭的第二预设时间后并且气调保鲜子空间持续关闭达到第三预设时间的情况下，将保鲜运行标识设置为允许状态。Optionally, the step of setting the fresh-keeping running identifier according to the running event of the refrigerating and freezing device comprises: setting the fresh-keeping running flag to a prohibited state after the storage space is opened; and after the second preset time after the storage space is closed And when the modified fresh-keeping subspace is continuously closed for the third preset time, the fresh-keeping running flag is set to the allowable state.
可选地，在储物空间被关闭后，如果气调保鲜子空间保持开启状态的时间超过第四预设时间，输出密封报警提示信息。Optionally, after the storage space is closed, if the time when the modified air-preserving sub-space remains open for more than the fourth preset time, the sealed alarm prompt information is output.
可选地，开机条件包括：距离上次气调保鲜***完成气调保鲜子空间的气体调节的时间超过第五预设时间，或者气调保鲜子空间的氧气浓度高于或等于预设的氧气浓度上限；关机条件包括：气调保鲜***持续运行的时间达到第六预设时间，或者气调保鲜子空间的氧气浓度低于或等于预设的氧气浓度下限。Optionally, the power-on condition includes: the time for the gas adjustment of the modified air-preserving subspace to be completed by the last modified atmosphere preservation system exceeds a fifth preset time, or the oxygen concentration of the modified air-preserving sub-space is higher than or equal to the preset oxygen The upper limit of the concentration; the shutdown condition includes: the continuous operation time of the modified atmosphere preservation system reaches the sixth preset time, or the oxygen concentration of the modified atmosphere storage subspace is lower than or equal to the preset lower limit of the oxygen concentration.
可选地，在启动气调保鲜***以对气调保鲜子空间的气体进行调节的步骤之后还包括：持续监测气调保鲜***的保鲜运行标识，若保鲜运行标识被设置为禁止状态，关闭气调保鲜***。Optionally, after the step of starting the modified atmosphere freshening system to adjust the gas of the modified atmosphere sub-space, the method further comprises: continuously monitoring the fresh-keeping operation identifier of the modified atmosphere fresh-keeping system, and if the fresh-keeping running indicator is set to a prohibited state, shutting off the gas Adjust the fresh system.
根据本发明的另一个方面，还提供了一种冷藏冷冻装置，其包括：箱体，其内部限定有储物空间，储物空间内形成有密闭的气调保鲜子空间；气调保鲜***，其包括气调膜组件以及抽气泵，抽气泵配置成使气调保鲜子空间的气体经过气调膜组件渗透，以在储物空间的气调保鲜子空间内形成利于食物保鲜的气体氛围；制冷***，配置成向储物空间提供冷量；控制器，用于控制气调保鲜***以及制冷***的启停，并且还配置成：获取气调保鲜***的保鲜运行标识，保鲜运行标识根据冷藏冷冻装置的运行事件进行设置，并且指示出是否允许气调保鲜***运行，冷藏冷冻装置的运行事件至少包括：冷藏冷冻装置的运行时刻、制冷***的启停事件、储物空间被开闭的事件、气调保鲜子空间被开闭的事件；在保鲜运行标识为允许气调保鲜***运行的情况下，判断气调保鲜***是否满足预设开机条件，并在满足开机条件的情况下，启动气调保鲜***以对气调保鲜子空间的气体进行调节，直至气调保鲜***达到预设的关机条件。According to another aspect of the present invention, a refrigerating and freezing apparatus is further provided, comprising: a box body defining a storage space therein, a sealed air-conditioned fresh-keeping sub-space formed in the storage space; and a modified atmosphere preservation system, The utility model comprises a gas regulating membrane module and an air pump, wherein the air pump is configured to infiltrate the gas of the modified air conditioning sub-space through the air-conditioning membrane module to form a gas atmosphere for food preservation in the atmosphere-preserving sub-space of the storage space; The system is configured to provide cooling capacity to the storage space; the controller is configured to control the start and stop of the modified atmosphere preservation system and the refrigeration system, and is further configured to: obtain a fresh-keeping operation indicator of the modified atmosphere preservation system, and keep the fresh-keeping operation identifier according to the refrigeration and freezing The operation event of the device is set, and indicates whether the operation of the modified atmosphere storage system is allowed. The operation events of the refrigeration and freezing device include at least: the running time of the refrigeration and freezing device, the start-stop event of the refrigeration system, the event that the storage space is opened and closed, The event that the modified atmosphere storage space is opened and closed; in the case that the fresh-keeping operation indicator is allowed to operate the modified atmosphere preservation system, Atmosphere in the case whether the system satisfies a predetermined start condition is satisfied and the condition of the boot, the system starts to modified atmosphere Atmosphere gas subspace is adjusted until the system reaches a preset Atmosphere shutdown conditions.
可选地，控制器还配置成：在制冷***启动后，将保鲜运行标识设置为禁止状态，并在制冷***被关闭的第一预设时间后，将保鲜运行标识设置为允许状态；在进入冷藏冷冻装置的频繁开门时段后，将保鲜运行标识设置为禁止状态，并且在等待频繁开门时段经过后，将保鲜运行标识设置为允许状态；在储物空间被打开后，将保鲜运行标识设置为禁止状态，并且在储物空间被关闭的第二预设时间后并且气调保鲜子空间持续关闭达到第三预设时间的情况下，将保鲜运行标识设置为允许状态。Optionally, the controller is further configured to: after the cooling system is started, set the fresh-keeping running flag to a prohibited state, and set the fresh-keeping running flag to an allowable state after the first preset time of the cooling system being turned off; After the frequent opening time of the refrigerating and freezing device, the fresh-keeping running flag is set to the prohibited state, and after waiting for the frequent opening time period, the fresh-keeping running flag is set to the permission state; after the storage space is opened, the fresh-keeping running flag is set to The state is prohibited, and the freshness running flag is set to the permission state in the case where the storage space is closed for a second preset time and the modified air storage subspace is continuously closed for the third preset time.
可选地，控制器还配置成：持续监测气调保鲜***的保鲜运行标识，若保鲜运行标识被设置为禁止状态，关闭启动气调保鲜***。Optionally, the controller is further configured to: continuously monitor the fresh-keeping operation identifier of the modified atmosphere fresh-keeping system, and if the fresh-keeping operation identifier is set to the prohibited state, turn off the start of the modified atmosphere fresh-keeping system.
本发明的冷藏冷冻装置及其气调保鲜控制方法，创造性地提出了采用气调膜(例如富氧膜)组件将密闭的气调保鲜子空间内空气中的氧气排出该空间，从而在该空间内获得富氮贫氧或者其他以利于食物保鲜的气体氛围。例如富氮贫氧的气体氛围可以通过降低果蔬保存空间内氧气的含量，降低果蔬有氧呼吸的强度，同时保证基础的呼吸作用，防止果蔬进行无氧呼吸，从而达到果蔬长期保鲜的目的。并且本发明对气调保鲜***的启动控制逻 辑进行优化，利用保鲜运行标识设定了允许气调保鲜***启动的条件，避免了气调保鲜***与制冷***互相影响，同时避免了对应用户正常使用冷藏冷冻装置产生影响，提高了用户的使用体验。The refrigerating and freezing device of the present invention and the controlled atmosphere freshening control method thereof creatively propose to use a gas regulating membrane (for example, an oxygen-rich membrane) module to discharge oxygen in the air in the closed atmosphere-preserving sub-space into the space, thereby being in the space Get a nitrogen-rich oxygen-poor or other gas atmosphere that is good for food preservation. For example, the nitrogen-rich and oxygen-poor gas atmosphere can reduce the oxygen content in the storage space of fruits and vegetables, reduce the aerobic respiration of fruits and vegetables, and at the same time ensure the basic respiration and prevent anaerobic respiration of fruits and vegetables, thereby achieving the purpose of long-term preservation of fruits and vegetables. And the invention controls the startup control of the modified atmosphere fresh-keeping system The optimization is carried out, and the conditions for allowing the modified atmosphere fresh-keeping system to be activated are set by using the fresh-keeping operation mark, thereby avoiding the influence of the modified atmosphere fresh-keeping system and the refrigeration system, and avoiding the influence of the normal use of the refrigeration and freezing device by the user, thereby improving the use of the user. Experience.
进一步地，本发明的冷藏冷冻装置及其气调保鲜控制方法，还对气调保鲜***的开机条件和关机条进行了优化，一方面保证了保鲜效果，另一方面避免了气调保鲜***长期低效率运行导致的能耗浪费。Further, the refrigerating and freezing device of the invention and the controlled atmosphere freshening control method thereof also optimize the starting condition and the shutdown strip of the modified atmosphere freshening system, thereby ensuring the fresh-keeping effect on the one hand, and avoiding the long-term maintenance of the modified atmosphere fresh-keeping system on the other hand. Waste of energy consumption caused by inefficient operation.
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。The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <
附图说明DRAWINGS
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：Some specific embodiments of the present invention are described in detail below by way of example, and not limitation. The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:
图1是根据本发明一个实施例的冷藏冷冻装置的示意框图；1 is a schematic block diagram of a refrigerating and freezing apparatus according to an embodiment of the present invention;
图2是根据本发明一个实施例的冷藏冷冻装置的气调保鲜原理示意图；2 is a schematic view showing the principle of controlled atmosphere preservation of a refrigerating and freezing apparatus according to an embodiment of the present invention;
图3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；Figure 3 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;
图4是图3所示结构的另一视角的示意性结构；Figure 4 is a schematic view of another perspective of the structure shown in Figure 3;
图5是根据本发明一个实施例的冷藏冷冻装置的示意性局部结构图；Figure 5 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;
图6是图5所示结构的示意性分解图；Figure 6 is a schematic exploded view of the structure shown in Figure 5;
图7是根据本发明一个实施例的冷藏冷冻装置中气调膜组件的分解图；Figure 7 is an exploded view of a gas regulating membrane module in a refrigerating and freezing apparatus according to an embodiment of the present invention;
图8是是根据本发明一个实施例的冷藏冷冻装置的控制***的示意框图；Figure 8 is a schematic block diagram of a control system of a refrigerating and freezing apparatus according to an embodiment of the present invention;
图9是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法的示意图；9 is a schematic diagram of a controlled atmosphere freshening control method of a refrigerating and freezing apparatus according to an embodiment of the present invention;
图10是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法的流程示意框图；10 is a schematic block diagram showing a flow control method of a controlled atmosphere fresh-keeping apparatus of a refrigerating and freezing apparatus according to an embodiment of the present invention;
图11是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法中在气调保鲜子空间闭合后的判断流程示意图；11 is a schematic flow chart of determining a gas-conditioning fresh-keeping subspace in a controlled atmosphere fresh-keeping control method of a refrigerating and freezing apparatus according to an embodiment of the present invention;
图12是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法中根据氧气浓度进行气调保鲜***启动判断的示意图；以及12 is a schematic diagram of a start-up determination of a modified atmosphere freshening system according to an oxygen concentration in a controlled atmosphere freshening control method of a refrigerating and freezing apparatus according to an embodiment of the present invention;
图13是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法中根据时间进行气调保鲜***80启动判断的示意图。Fig. 13 is a schematic diagram showing the start-up determination of the modified atmosphere fresh-keeping system 80 according to time in the controlled atmosphere fresh-keeping control method of the refrigerating and freezing apparatus according to an embodiment of the present invention.
具体实施方式detailed description
本发明实施例的冷藏冷冻装置采用利用气调保鲜技术在气调保鲜子空间内形成满足物品储放要求气体氛围。The refrigerating and freezing device of the embodiment of the invention adopts the atmosphere-preserving and fresh-keeping technology to form a gas atmosphere in the atmosphere-preserving sub-space to satisfy the storage and release requirements of the articles.
图1是根据本发明一个实施例的冷藏冷冻装置的示意框图。该冷藏冷冻装置一般性地包括：箱体20、气调保鲜***80、制冷***70、控制器110。其中箱体20内部限定有储物空间，储物空间内形成有密闭的气调保鲜子空间。气调保鲜***80包括气调膜组件30以及抽气泵40。抽气泵40使气调保鲜子空间的气体经过气调膜组件30渗透，以在储物空间的气调保鲜子空间内形成利于食物保鲜的气体氛围。制冷***70用于向储物空间提供冷量。控制器110可以根据冷藏冷冻装置运行情况控制气调保鲜***80以及制冷***700启停。1 is a schematic block diagram of a refrigerating and freezing apparatus according to an embodiment of the present invention. The refrigerating and freezing apparatus generally includes a tank 20, an air conditioning system 80, a refrigeration system 70, and a controller 110. The inside of the box body 20 defines a storage space, and a sealed atmosphere-preserving sub-space is formed in the storage space. The modified atmosphere preservation system 80 includes a gas regulating membrane module 30 and an air pump 40. The air pump 40 infiltrates the gas in the modified air conditioning sub-space through the air-conditioning membrane module 30 to form a gas atmosphere for food preservation in the atmosphere-preserving sub-space of the storage space. The refrigeration system 70 is used to provide cooling to the storage space. The controller 110 can control the fresh air conditioning system 80 and the refrigeration system 700 to start and stop according to the operation of the refrigerating and freezing device.
气调保鲜***80采用气调膜在气调保鲜子空间内形成满足物品储放要求的气体氛围。气调膜(又称为富氧膜)的工作原理为利用空气中各组分透过气调膜时的渗透速率不同，在压力差驱动下，使空气中氧气优先通过气调膜，在现有技术中，气调膜一般用于制 备氧气，从而在医疗、发酵、燃烧等领域应用。在本发明实施例中，冷藏冷冻装置则利用气调膜使氧气排出，使得气调保鲜子空间的氧气浓度下降，实现利于食物保存的气体氛围。The modified atmosphere freshening system 80 uses a gas regulating membrane to form a gas atmosphere in the modified atmosphere sub-space to meet the storage requirements of the articles. The gas-adjusting membrane (also known as the oxygen-rich membrane) works by using different permeability rates when the components in the air pass through the gas-regulating membrane. Under the pressure difference, the oxygen in the air is preferentially passed through the gas-regulating membrane. In the technology, the gas regulating film is generally used for making Prepare oxygen for use in medical, fermentation, and combustion applications. In the embodiment of the present invention, the refrigerating and freezing device uses the gas regulating membrane to discharge oxygen, so that the oxygen concentration in the modified air conditioning sub-space is lowered, and a gas atmosphere conducive to food preservation is realized.
本实施例中，气调保鲜技术通过调节储存物所处封闭空间的气体氛围(气体成分比例或气体压力)的方式来来延长食品贮藏寿命的技术，其基本原理为：在一定的封闭空间(气调保鲜子空间)内，通过气调膜得到不同于正常空气成分的气体氛围，以抑制导致储存物(通常为食物)腐败变质的生理生化过程及微生物的活动。特别地，在本实施例中，所讨论的气调保鲜将专门针对于对气体成分比例进行调节的气调保鲜技术。In this embodiment, the modified atmosphere preservation technology extends the food storage life by adjusting the gas atmosphere (gas composition ratio or gas pressure) of the enclosed space in which the storage object is located, and the basic principle is: in a certain closed space ( In the modified atmosphere space, a gas atmosphere different from the normal air component is obtained through the gas regulating membrane to suppress physiological and biochemical processes and microbial activities leading to spoilage of the stored matter (usually food). In particular, in this embodiment, the modified atmosphere preservation will be specifically directed to a modified atmosphere preservation technique that adjusts the proportion of gas components.
本领域技术人员均知晓，正常空气成分包括(按体积百分比计，下文同)：约78％的氮气，约21％的氧气，约0.939％的稀有气体(氦、氖、氩、氪、氙、氡)、0.031％的二氧化碳，以及0.03％的其他气体和杂质(例如，臭氧、一氧化氮、二氧化氮、水蒸气等。在气调保鲜领域，通常采用向封闭空间充入富氮气体来降低氧气含量的方式来获得富氮贫氧的保鲜气体氛围。本领域技术人员均应知晓，富氮气体是指氮气含量超过上述正常空气中氮气含量的气体，例如其中的氮气含量可为95％～99％，甚至更高；而富氮贫氧的保鲜气体氛围是指氮气含量超过上述正常空气中氮气含量、氧气含量低于上述正常空气中氧气含量的气体氛围。It is known to those skilled in the art that normal air components include (by volume percent, hereinafter the same): about 78% nitrogen, about 21% oxygen, about 0.939% rare gases (氦, 氖, argon, krypton, xenon,氡), 0.031% of carbon dioxide, and 0.03% of other gases and impurities (for example, ozone, nitrogen monoxide, nitrogen dioxide, water vapor, etc.. In the field of modified atmosphere preservation, it is usually used to fill the enclosed space with nitrogen-enriched gas. The oxygen content is reduced to obtain a nitrogen-rich and oxygen-poor fresh gas atmosphere. Those skilled in the art should know that the nitrogen-enriched gas refers to a gas having a nitrogen content exceeding the nitrogen content in the above-mentioned normal air, for example, the nitrogen content may be 95%. ～99%, or even higher; and the nitrogen-rich and oxygen-poor fresh gas atmosphere refers to a gas atmosphere in which the nitrogen content exceeds the above-mentioned normal air nitrogen content and the oxygen content is lower than the above-mentioned normal air oxygen content.
虽然现有技术中也存在着气调保鲜技术，其历史可追溯到1821年德国生物学家发现水果蔬菜在低氧水平时能减少代谢作用开始。但直到目前为止，由于传统上用于气调保鲜的制氮设备体积庞大、成本高昂，导致该技术基本上还是局限于使用在各种大型的专业贮藏库上(储藏容量一般至少30吨以上)。因此现有技术中冰箱等小型的冷藏冷冻设备中一般仍然采用真空保鲜技术。Although there are also atmosphere-preserving technologies in the prior art, the history can be traced back to the beginning of 1821 when German biologists discovered that fruits and vegetables can reduce metabolism at low oxygen levels. But until now, due to the large size and high cost of nitrogen-making equipment traditionally used for gas-conditioning preservation, the technology is basically limited to use in various large-scale professional storage (the storage capacity is generally at least 30 tons). . Therefore, vacuum preservation technology is generally used in small-sized refrigerating and freezing equipment such as refrigerators in the prior art.
在本实施例中，通过上述气调膜组件经济地将气调***小型化、静音化，从而适用于冰箱等小型的冷藏冷冻设备。图2是根据本发明一个实施例的冷藏冷冻装置的气调保鲜原理示意图，图3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4是图3所示结构的另一视角的示意性结构图。如图所示，本发明实施例提供了一种冷藏冷冻装置，其可包括箱体20、门体(图中未示出)、气调膜组件30、抽气泵40和制冷***70。冷藏冷冻装置的箱体20内限定有储物空间，该储物空间可以按照制冷温度配置为冷藏室27、冷冻室25、变温室26等。冷藏冷冻装置可为至少具有冷藏室27和冷冻室25的冰箱。制冷***可为常见的压缩制冷***，其通过例如直冷和/或风冷形式向储物间室提供冷量，以使储物间室具有期望的保藏温度。在一些实施例中，冰箱冷藏室27的保藏温度可为2～9℃，或者可为4～7℃；冷冻室25的保藏温度可为-22～-14℃，或者可为-20～16℃。冷冻室25设置于冷藏室27的下方，变温室26设置于冷冻室25和冷藏室27之间。冷冻室25内的温度范围一般在-14℃至-22℃。变温室26可根据需求进行调整，以储存合适的食物。In the present embodiment, the air-conditioning system is economically compacted and quieted by the above-described air-conditioning membrane module, and is suitable for use in a small-sized refrigerating and freezing apparatus such as a refrigerator. 2 is a schematic view showing the principle of air conditioning and preservation of a refrigerating and freezing apparatus according to an embodiment of the present invention, FIG. 3 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention, and FIG. 4 is another structure of the structure shown in FIG. Schematic diagram of the perspective. As shown in the figure, an embodiment of the present invention provides a refrigerating and freezing apparatus, which may include a tank 20, a door body (not shown), a gas regulating membrane module 30, an air pump 40, and a refrigeration system 70. A storage space is defined in the casing 20 of the refrigerating and freezing apparatus, and the storage space can be configured as a refrigerating compartment 27, a freezing compartment 25, a changing greenhouse 26, and the like according to the cooling temperature. The refrigerating and freezing device may be a refrigerator having at least a refrigerating chamber 27 and a freezing chamber 25. The refrigeration system can be a conventional compression refrigeration system that provides refrigeration to the storage compartment by, for example, direct cooling and/or air cooling to provide the storage compartment with a desired storage temperature. In some embodiments, the storage temperature of the refrigerator compartment 27 may be 2 to 9 ° C, or may be 4 to 7 ° C; the storage temperature of the freezer compartment 25 may be -22 to -14 ° C, or may be -20 to 16 °C. The freezing compartment 25 is disposed below the refrigerating compartment 27, and the changing greenhouse 26 is disposed between the freezing compartment 25 and the refrigerating compartment 27. The temperature within the freezer compartment 25 typically ranges from -14 °C to -22 °C. The variable greenhouse 26 can be adjusted as needed to store the appropriate food.
在本实施例中，储物空间内形成有密闭的气调保鲜子空间271，该气调保鲜子空间271可以设置于上述任一种间室内，优先配置于冷藏室27和变温室26中。例如气调保鲜子空间271可以为设置在冷藏室27的下部储物空间。In the present embodiment, a sealed atmosphere-preserving sub-space 271 is formed in the storage space, and the modified-air-preserving sub-space 271 may be disposed in any of the above-described compartments, and preferentially disposed in the refrigerating compartment 27 and the changing greenhouse 26. For example, the modified atmosphere sub-space 271 may be a lower storage space provided in the refrigerating compartment 27.
门体可枢转地安装于箱体20，配置成打开或关闭箱体20限定的储物空间。为了保证气调保鲜子空间271的密封性，门体内侧还可以设置有小门，以打开或关闭气调保鲜子空间271，从而形成双层门结构。在一些可替代的实施方式中，该冷藏冷冻装置可以利用抽屉形成上述气调保鲜子空间271。抽屉可具有抽屉筒体22和抽屉本体23。利用抽屉型储物间室形成气调保鲜子空间271。The door body is pivotally mounted to the case 20 and is configured to open or close a storage space defined by the case 20. In order to ensure the sealing property of the modified atmosphere sub-space 271, a small door may be disposed on the inner side of the door body to open or close the modified air-preserving sub-space 271, thereby forming a double-layered door structure. In some alternative embodiments, the refrigerated freezer can utilize the drawer to form the modified atmosphere sub-space 271 described above. The drawer may have a drawer body 22 and a drawer body 23. The atmosphere-preserving sub-space 271 is formed by the drawer type storage compartment.
抽屉筒体22具有前向开口，并设置于储物空间内(例如冷藏室27的下部)，抽屉本体23可滑动地安装于抽屉筒体22，抽屉本体23的前端设置有端板，与抽屉筒体22配合，可以封闭气调保鲜子空间271的开口。一种具体的方式为抽屉本体23可从抽屉筒体22的前向开口可操作地向外抽出和向内推入。端板通过密封结构使得气调保鲜子空间271的开口封闭。 The drawer cylinder 22 has a front opening and is disposed in the storage space (for example, a lower portion of the refrigerating chamber 27). The drawer body 23 is slidably mounted to the drawer cylinder 22, and the front end of the drawer body 23 is provided with an end plate, and a drawer The barrel 22 is fitted to close the opening of the modified atmosphere sub-space 271. One specific way is that the drawer body 23 can be operatively drawn outwardly and inwardly from the forward opening of the drawer body 22. The end plate closes the opening of the modified atmosphere sub-space 271 by the sealing structure.
在本发明的一些实施例中，抽屉筒体22可以与靠抽屉本体23的端板之间形成密封部，该密封部可以适当漏气实现气压平衡。在一些其他实施例中可以通过在抽屉筒体22上设置毫米级的微孔或者单向阀等方式保证气压平衡。In some embodiments of the present invention, the drawer body 22 may form a seal with the end plate of the drawer body 23, which may be properly leaked to achieve air pressure balance. In some other embodiments, the air pressure balance can be ensured by providing millimeter-scale micropores or one-way valves on the drawer body 22.
制冷***70可为由压缩机、冷凝器、节流装置和蒸发器等构成的制冷循环***。压缩机安装于压缩机舱24内。蒸发器配置成直接或间接地向储物空间内提供冷量。例如，当该冷藏冷冻装置为家用压缩式直冷冰箱时，蒸发器可设置于内胆21的后壁面外侧或内侧。当该冷藏冷冻装置为家用压缩式风冷冰箱时，箱体20内还具有蒸发器室，蒸发器室通过风路***与储物空间连通，且蒸发器室内设置蒸发器，出口处设置有风机，以向储物空间进行循环制冷。由于此类制冷***本身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，后文对制冷***本身不作更多赘述。The refrigeration system 70 may be a refrigeration cycle system composed of a compressor, a condenser, a throttle device, an evaporator, and the like. The compressor is mounted in the compressor compartment 24. The evaporator is configured to provide cooling directly or indirectly into the storage space. For example, when the refrigerating and freezing device is a domestic compression type direct cooling refrigerator, the evaporator may be disposed outside or inside the rear wall surface of the inner casing 21. When the refrigerating and freezing device is a domestic compressed air-cooled refrigerator, the casing 20 further has an evaporator chamber, the evaporator chamber is connected to the storage space through the air passage system, and an evaporator is arranged in the evaporator chamber, and a fan is arranged at the outlet. To cycle cooling to the storage space. Since such refrigeration systems are well known and readily implemented by those skilled in the art, in order not to obscure and obscure the inventive aspects of the present application, the refrigeration system itself will not be described in further detail below.
气调膜组件30具有气调膜，并限定有富氧气体收集腔，在富氧气体收集腔的压力小于周围环境的压力时，周围环境的气体(大部分氧气)透过气调膜进入气调富氧气体收集腔。具体地，气调膜的另一侧可直接与气调保鲜子空间271接触，或与连通至气调保鲜子空间271的循环流道(或循环空间)接触，从而可在富氧气体收集腔的压力小于子空间的压力时，使气调保鲜子空间271内空气中的气调气体透过气调膜进入富氧气体收集腔，在使用富氧膜的情况下，气调保鲜子空间271的氧气被抽出，从而使气调保鲜子空间271形成贫氧的气体氛围。The gas regulating membrane module 30 has a gas regulating membrane and defines an oxygen-rich gas collecting chamber. When the pressure of the oxygen-rich gas collecting chamber is lower than the pressure of the surrounding environment, the ambient gas (most of the oxygen) passes through the gas regulating membrane and enters the gas. Adjust the oxygen-rich gas collection chamber. Specifically, the other side of the air-conditioning membrane may be in direct contact with the modified atmosphere sub-space 271 or with a circulation flow path (or a circulation space) connected to the modified atmosphere sub-space 271, so that the oxygen-rich gas collection chamber can be When the pressure is less than the pressure of the subspace, the atmosphere gas in the air in the modified air conditioning subspace 271 is passed through the gas regulating membrane into the oxygen-rich gas collecting chamber, and in the case of using the oxygen-rich membrane, the modified air conditioning subspace 271 The oxygen is extracted so that the modified atmosphere sub-space 271 forms an oxygen-poor gas atmosphere.
抽气泵40可以设置于压缩机舱24内，抽气泵40的进口端经由管路50与气调膜组件30的富氧气体收集腔连通，配置成将富氧气体收集腔的气体向外抽出，以使气调保鲜子空间271内的至少部分氧气通过气调膜进入富氧气体收集腔，从而降低气调保鲜子空间内的氧气浓度。抽气泵40配置成将富氧气体收集腔富含氧气的气体抽出，降低气调保鲜子空间271的氧气浓度。以在气调保鲜子空间271内获得富氮贫氧以利于食物保鲜的气体氛围。The air pump 40 can be disposed in the compressor chamber 24, and the inlet end of the air pump 40 communicates with the oxygen-rich gas collecting chamber of the gas regulating membrane assembly 30 via the line 50, and is configured to extract the gas of the oxygen-rich gas collecting chamber outward. At least a portion of the oxygen in the modified atmosphere sub-space 271 is passed through the gas-regulating membrane into the oxygen-rich gas collection chamber, thereby reducing the concentration of oxygen in the modified atmosphere. The air pump 40 is configured to extract oxygen-rich gas from the oxygen-rich gas collection chamber to reduce the oxygen concentration of the modified atmosphere sub-space 271. In order to obtain a gas atmosphere rich in nitrogen and oxygen in the modified atmosphere sub-space 271 to facilitate food preservation.
本发明的冷藏冷冻装置可使气调保鲜子空间271内形成富氮贫氧以利于食物保鲜的气体氛围，该气体氛围通过降低果蔬保存空间内氧气的含量，降低果蔬有氧呼吸的强度，同时保证基础的呼吸作用，防止果蔬进行无氧呼吸，从而达到果蔬长期保鲜的目的。而且，该气体氛围还具有大量的氮气等气体，不会降低子空间内物品的受冷效率，可使果蔬等有效得到储存。抽气泵40设置于压缩机舱24内，可充分利用压缩机舱24空间，不额外占用其他地方，因此不会增大冷藏冷冻装置的额外体积，可使冷藏冷冻装置的结构紧凑。The refrigerating and freezing device of the present invention can form a gas atmosphere rich in nitrogen and oxygen in the modified atmosphere sub-space 271 to facilitate food preservation, and the gas atmosphere reduces the oxygen content of the fruit and vegetable by reducing the oxygen content in the storage space of the fruit and vegetable, and simultaneously It ensures the basic respiration and prevents anaerobic respiration of fruits and vegetables, thus achieving the purpose of long-term preservation of fruits and vegetables. Moreover, the gas atmosphere also has a large amount of gas such as nitrogen gas, which does not reduce the cooling efficiency of articles in the subspace, and can effectively store fruits and vegetables and the like. The air pump 40 is disposed in the compressor compartment 24, and can fully utilize the space of the compressor compartment 24 without occupying other places, so that the extra volume of the refrigerating and freezing apparatus is not increased, and the structure of the refrigerating and freezing apparatus can be made compact.
在本发明的一些实施例中，抽气泵40和压缩机可以分别设置于压缩机舱24的两侧，彼此间隔，以使抽气泵40距离压缩机的距离比较远，减少噪音叠加和废热叠加。例如，抽气泵40可设置于压缩机舱24的临近门体枢转侧的一端。当冷藏冷冻装置为对开门冰箱时，抽气泵40可设置于压缩机舱24的任意位置。在本发明的另一些实施例中，抽气泵40也可以邻近压缩机设置，例如抽气泵40设置于压缩机舱24的一端，且处于压缩机和压缩机舱24的侧壁之间。In some embodiments of the present invention, the air pump 40 and the compressor may be disposed on both sides of the compressor compartment 24, respectively, spaced apart from each other such that the distance of the air pump 40 from the compressor is relatively long, reducing noise superposition and waste heat stacking. For example, the air pump 40 may be disposed at one end of the compressor nacelle 24 adjacent to the pivoting side of the door body. When the refrigerating and freezing device is a door-to-door refrigerator, the air pump 40 can be disposed at any position of the compressor bay 24. In other embodiments of the invention, the air pump 40 may also be disposed adjacent to the compressor, such as the air pump 40 disposed at one end of the compressor bay 24 and between the compressor and the sidewall of the compressor bay 24.
在本发明的一些实施例中，抽气泵40可以安装于密封盒内，密封盒可通过安装底板安装于压缩机舱24内。密封盒可在很大程度上阻隔抽气泵40的噪声和/或废热向外传播。In some embodiments of the invention, the air pump 40 may be mounted in a sealed box that may be mounted within the compressor compartment 24 by a mounting floor. The sealed box can largely block the noise and/or waste heat of the air pump 40 from propagating outward.
图5是根据本发明一个实施例的冷藏冷冻装置的示意性局部结构图，以及图6是图5所示结构的示意性分解图，气调膜组件30可设置于抽屉筒体22的筒体内，优选地设置于抽屉筒体22的顶壁。具体地抽屉筒体22的顶壁内设置有与气调保鲜子空间271连通的容纳腔31。抽屉筒体22的顶壁的容纳腔31与气调保鲜子空间271之间的壁面中开设有至少一个第一通气孔222和与至少一个第一通气孔222间隔开设的至少一个第二通气孔223，以分别在不同位置连通容纳腔31与气调保鲜子空间271，容纳腔31与气调保鲜子空间271经由至少一个第一连通孔222和至少一个第二连通孔223连通；气调膜组件30设置于容纳腔31内，可以设置于至少一个第二连通孔223的上方。容纳腔31构成与气调保鲜子空 间271连通的循环空间，以使气调膜组件30中的气调膜36与气调保鲜子空间271内的气体接触。第一连通孔222和第二连通孔223均为小孔，且数量均可为多个。在一些替代性实施例中，第一抽屉筒体22的顶壁内侧具有凹陷槽。气调膜组件30设置于第一抽屉筒体22的顶壁的凹陷槽内。5 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention, and FIG. 6 is a schematic exploded view of the structure shown in FIG. 5, and the air conditioning membrane module 30 may be disposed in a cylinder of the drawer cylinder 22. It is preferably disposed on the top wall of the drawer body 22. Specifically, a receiving chamber 31 that communicates with the modified atmosphere sub-space 271 is disposed in the top wall of the drawer cylinder 22. At least one first vent hole 222 and at least one second vent hole spaced apart from the at least one first vent hole 222 are defined in a wall surface between the accommodating cavity 31 of the top wall of the drawer cylinder 22 and the modified air conditioning subspace 271. 223, the receiving chamber 31 and the modified atmosphere sub-space 271 are respectively connected at different positions, and the accommodating chamber 31 and the modified atmosphere sub-space 271 are communicated via the at least one first communication hole 222 and the at least one second communication hole 223; The assembly 30 is disposed in the accommodating cavity 31 and may be disposed above the at least one second communication hole 223. The accommodating chamber 31 is configured to be air-conditioned and fresh-keeping. The 271 is connected to the circulation space such that the gas regulating membrane 36 in the gas regulating membrane module 30 is in contact with the gas in the modified atmosphere sub-space 271. The first communication hole 222 and the second communication hole 223 are both small holes, and the number may be plural. In some alternative embodiments, the inside of the top wall of the first drawer body 22 has a recessed groove. The air conditioning membrane module 30 is disposed in a recessed groove of the top wall of the first drawer body 22.
在本发明的一些实施例中，为了促使气调保鲜子空间271与容纳腔31内的气体流动，第一密闭组件71的容纳腔31内还可以设置风机60，风机60用于形成依次经由至少一个第一通气孔222、容纳腔31和至少一个第二连通气孔223并返回所述气调保鲜子空间271的气流，从而促使气调保鲜子空间271的气体经由第一连通孔222进入容纳腔31，且使容纳腔31内的气体经由第二连通孔223进入气调保鲜子空间271，从而形成经由气调膜组件30的气流。In some embodiments of the present invention, in order to facilitate the flow of the gas in the conditioned storage sub-space 271 and the accommodating chamber 31, a fan 60 may be disposed in the accommodating chamber 31 of the first sealing assembly 71, and the fan 60 is formed to sequentially form at least a first venting hole 222, a receiving cavity 31 and at least one second communicating air hole 223 return to the airflow of the modified air conditioning subspace 271, thereby causing the gas of the modified air conditioning subspace 271 to enter the receiving cavity via the first communication hole 222. 31, and the gas in the accommodating chamber 31 is introduced into the modified atmosphere sub-space 271 via the second communication hole 223, thereby forming an air flow via the air-conditioning membrane module 30.
风机60置于容纳腔31的位置可以处于至少一个第一连通孔222的上方，其促使气调保鲜子空间271的气体经由至少一个第一连通孔222进入容纳腔31，且使容纳腔31内的气体经由至少一个第二连通孔223进入气调保鲜子空间271，以由气调膜组件30从通过其的气体中析出的氧气。The fan 60 is disposed at the position of the accommodating cavity 31 above the at least one first communication hole 222, which causes the gas of the modified atmosphere sub-space 271 to enter the accommodating cavity 31 via the at least one first communication hole 222, and the inside of the accommodating cavity 31 The gas enters the modified-air-preserving sub-space 271 via the at least one second communication hole 223 to receive oxygen from the gas passing through the gas regulating membrane module 30.
风机60优选采用离心风机，可以设置于气体收集腔31内第一连通孔222处。也就是说，离心风机60位于至少一个第一连通孔222的上方，且进风口正对于第一连通孔222。离心风机60的出气口可朝向气调膜组件30。至少一个第二连通孔223可位于气调膜组件30的下方。The fan 60 is preferably a centrifugal fan and can be disposed at the first communication hole 222 in the gas collection chamber 31. That is, the centrifugal fan 60 is located above the at least one first communication hole 222, and the air inlet is directed to the first communication hole 222. The air outlet of the centrifugal fan 60 can face the air conditioning membrane module 30. At least one second communication hole 223 may be located below the air conditioning membrane module 30.
第一抽屉筒体22的顶壁包括下板部224和盖板部225，共同限定出容纳腔31，例如下板部224的上表面可以形成凹陷槽，盖板部225盖设于凹陷槽，以形成容纳腔31。至少一个第一连通孔222设置于顶壁前部，至少一个第二连通孔223设置于顶壁后部。离心风机60设置于容纳腔31的前部，气调膜组件30设置于容纳腔31的后部。The top wall of the first drawer body 22 includes a lower plate portion 224 and a cover portion 225, which together define a receiving cavity 31. For example, an upper surface of the lower plate portion 224 may form a recessed groove, and the cover portion 225 is covered in the recessed groove. To form the accommodating cavity 31. At least one first communication hole 222 is disposed at a front portion of the top wall, and at least one second communication hole 223 is disposed at a rear portion of the top wall. The centrifugal fan 60 is disposed at the front of the accommodating chamber 31, and the air conditioned membrane module 30 is disposed at the rear of the accommodating chamber 31.
气调膜组件30具有气调膜36和富氧气体收集腔，且气调膜36的一侧朝向富氧气体收集腔，以在富氧气体收集腔的压力小于气调膜36的另一侧的压力时，使气调膜36的另一侧的空气中的氧气透过气调膜36进入富氧气体收集腔。具体地，该气调膜组件30可以与连通至气调保鲜子空间271的循环流道(即容纳腔31)接触，从而可在富氧气体收集腔的压力小于气调保鲜子空间271的压力时，使容纳腔31内气体(来源于所述气调保鲜子空间271)中的氧气相对于气调膜组件30周围空间气流中的氮气更多地透过气调膜进入富氧气体收集腔，也即将风机60形成气流中的氧气相对于氮气更多地透过气调膜进入富氧气体收集腔。多个第一密闭组件71可以采用相同的结构，具体的尺寸可以根据需要设置为相同或不同。The gas regulating membrane module 30 has a gas regulating membrane 36 and an oxygen-rich gas collecting chamber, and one side of the gas regulating membrane 36 faces the oxygen-rich gas collecting chamber so that the pressure in the oxygen-rich gas collecting chamber is smaller than the other side of the gas regulating membrane 36 At the time of the pressure, oxygen in the air on the other side of the gas-conditioning membrane 36 is passed through the gas regulating membrane 36 into the oxygen-rich gas collecting chamber. Specifically, the air-conditioning membrane module 30 can be in contact with the circulation flow path (ie, the accommodating chamber 31) that communicates with the modified atmosphere sub-space 271, so that the pressure in the oxygen-rich gas collection chamber can be less than the pressure of the modified-air-preserving sub-space 271. At the same time, the oxygen in the gas in the accommodating chamber 31 (from the modified atmosphere sub-space 271) is more transmitted through the gas-regulating membrane into the oxygen-rich gas collecting chamber than the nitrogen in the space airflow around the gas regulating membrane module 30. That is, the fan 60 forms oxygen in the gas stream to pass through the gas regulating membrane more than the nitrogen gas into the oxygen-rich gas collecting chamber. The plurality of first sealing members 71 may adopt the same structure, and the specific sizes may be set to be the same or different as needed.
图7是根据本发明一个实施例的冷藏冷冻装置中气调膜组件30的分解图，气调膜组件30可呈平板型，该气调膜组件30还可包括支撑框架32。支撑框架32具有相互平行的第一表面和第二表面，形成有分别在第一表面上延伸、在第二表面上延伸，以及贯穿支撑框架以连通第一表面与第二表面的多个气流通道，多个气流通道共同形成富氧气体收集腔。7 is an exploded view of a gas regulating membrane assembly 30 in a refrigerating and freezing apparatus according to an embodiment of the present invention. The air conditioning membrane module 30 may be in the form of a flat plate, and the air conditioning membrane module 30 may further include a support frame 32. The support frame 32 has first and second surfaces parallel to each other, formed with a plurality of airflow passages extending on the first surface, extending on the second surface, and extending through the support frame to communicate the first surface and the second surface A plurality of gas flow channels collectively form an oxygen-rich gas collection chamber.
气调膜36可为两层，分别铺设于支撑框架32的两侧，以使封闭富氧气体收集腔，每层气调膜36可以包括一张或多张气调膜层叠形成。气体透过气调膜36是一个复杂的过程，其透过机制一般是气体分子首先被吸附到气调膜36的表面溶解，然后在气调膜36中气调膜中溶解和扩散系数的差异来实现气体的分离。当气体由于气调膜36两侧的压力差作用下，渗透速率快的氧气在气调膜36的渗透侧被富集，从而汇聚于富氧气体收集腔内。The air-conditioning membrane 36 can be two layers, which are respectively laid on both sides of the support frame 32 to close the oxygen-rich gas collecting chamber, and each layer of the air-conditioning membrane 36 can be formed by laminating one or more gas-regulating membranes. The gas permeating through the gas regulating membrane 36 is a complicated process, and the permeation mechanism is generally that the gas molecules are first adsorbed to the surface of the gas regulating membrane 36, and then the difference in dissolution and diffusion coefficients in the gas regulating membrane in the gas regulating membrane 36 is observed. To achieve gas separation. When the gas is subjected to the pressure difference between the two sides of the gas regulating membrane 36, the oxygen having a high permeation rate is concentrated on the permeate side of the gas regulating membrane 36 to be concentrated in the oxygen-rich gas collecting chamber.
支撑框架32可包括边框，设置于边框内的肋板和/或平板等结构，肋板之间、肋板与平板之间等可形成气流通道，肋板的表面上、平板的表面上均可开设有凹槽，以形成气流通道。肋板和/或平板可提高气调膜组件30的结构强度等。也就是说，支撑框架32具有相互平行的第一表面和第二表面，且内部形成有与第一表面和第二表面连通的多个气流通 道。两个气调膜36分别铺设在支撑框架32的第一表面和第二表面上，以与支撑框架32的多个气流通道共同封闭形成富氧气体收集腔。The support frame 32 may include a frame, a rib plate and/or a flat plate disposed in the frame, and an air flow passage between the ribs, between the ribs and the flat plate, and the surface of the rib and the surface of the flat plate may be A groove is formed to form an air flow passage. The ribs and/or the flat plate may increase the structural strength and the like of the air-conditioning membrane module 30. That is, the support frame 32 has a first surface and a second surface that are parallel to each other, and a plurality of airflow passages communicating with the first surface and the second surface are formed inside. Road. Two gas regulating films 36 are respectively laid on the first surface and the second surface of the support frame 32 to form an oxygen-rich gas collecting chamber together with a plurality of gas flow passages of the support frame 32.
在本发明的一些实施例中，支撑框架32包括与前述多个气流通道连通的抽气孔33，设置于边框32上，以允许富氧气体收集腔中的氧气被输出。抽气孔33与抽气装置41连通。气调膜36先通过双面胶34安装于边框，然后通过密封胶35进行密封。In some embodiments of the invention, the support frame 32 includes a venting aperture 33 in communication with the plurality of airflow passages described above, disposed on the rim 32 to allow oxygen in the oxygen-rich gas collection chamber to be output. The air suction hole 33 is in communication with the air suction device 41. The air-conditioning film 36 is first attached to the frame by the double-sided tape 34 and then sealed by the sealant 35.
在一些实施例中，支撑框架32内部形成的前述多个气流通道可以为一个或多个与抽气孔33连通的空腔。在一些实施例中，支撑框架32内部形成的前述多个气流通道可以具有网格结构。In some embodiments, the plurality of airflow passages formed inside the support frame 32 may be one or more cavities in communication with the suction holes 33. In some embodiments, the aforementioned plurality of airflow channels formed inside the support frame 32 may have a mesh structure.
具体地，支撑框架32可包括边框，设置于边框内的肋板和/或平板等结构，肋板之间、肋板与平板之间等可形成气流通道，肋板的表面上、平板的表面上均可开设有凹槽，以形成气流通道。肋板和/或平板可提高气调膜组件30的结构强度等。Specifically, the support frame 32 may include a frame, a rib plate and/or a flat plate disposed in the frame, and an air flow passage between the ribs, between the ribs and the flat plate, the surface of the rib plate, and the surface of the flat plate. Grooves may be formed in the upper portion to form an air flow passage. The ribs and/or the flat plate may increase the structural strength and the like of the air-conditioning membrane module 30.
例如支撑框架32具有相互平行的第一表面和第二表面，支撑框架32形成有分别在第一表面上延伸、在第二表面上延伸，以及贯穿支撑框架32以连通第一表面和第二表面的多个气流通道。也就是说，该多个气流通道包括在第一表面上延伸的多个第一气流通道、在第二表面上延伸的多个第二气流通道、以及贯穿支撑框架32以连通第一表面和第二表面的多个第三气流通道。或者也可以理解为，支撑框架32形成有在第一表面上延伸的多个第一气流通道和在第二表面上延伸的多个第二气流通道，且第一气流通道与第二气流通道之间通过第三气流通道连通。所有的气流通道共同形成富氧气体收集腔。For example, the support frame 32 has first and second surfaces parallel to each other, and the support frame 32 is formed to extend on the first surface, extend on the second surface, and penetrate the support frame 32 to communicate the first surface and the second surface. Multiple airflow channels. That is, the plurality of airflow passages include a plurality of first airflow passages extending on the first surface, a plurality of second airflow passages extending on the second surface, and a through support frame 32 to communicate the first surface and the first a plurality of third airflow channels of the two surfaces. Or it may be understood that the support frame 32 is formed with a plurality of first air flow passages extending on the first surface and a plurality of second air flow passages extending on the second surface, and the first air flow passage and the second air flow passage They are connected by a third air flow passage. All of the gas flow channels together form an oxygen-rich gas collection chamber.
一张或多张气调膜形成两个平面形气调膜层，分别铺设在支撑框架的第一表面和第二表面上，从而构成平板形的气调膜组件30。The one or more air-conditioning membranes form two planar air-conditioning membrane layers which are respectively laid on the first surface and the second surface of the support frame to form a flat-shaped air-conditioning membrane module 30.
支撑框架32形成有与上述气流通道连通的抽气孔33，抽气孔33连通富氧气体收集腔，用于连接抽气泵40的进口端，从而允许富氧气体收集腔中的富氧气体被输出。在抽气泵40运行时，富氧气体收集腔38中处于负压状态，气调膜组件30外侧空气中的氧气会持续透过气调膜36进入富氧气体收集腔中。支撑框架32整体上可大致呈矩形框架。The support frame 32 is formed with a suction hole 33 communicating with the above-described air flow passage, and the air suction hole 33 communicates with the oxygen-rich gas collecting chamber for connecting the inlet end of the air pump 40, thereby allowing the oxygen-rich gas in the oxygen-rich gas collecting chamber to be output. When the air pump 40 is in operation, the oxygen-enriched gas collecting chamber 38 is in a negative pressure state, and oxygen in the air outside the gas regulating membrane module 30 continues to pass through the gas regulating membrane 36 into the oxygen-rich gas collecting chamber. The support frame 32 as a whole may have a generally rectangular frame.
在一些实施例中，支撑框架32可包括：边框，多个第一肋板以及多个第二肋板。前述多个第一肋板在边框内部沿纵向间隔设置且沿横向延伸，且前述多个第一肋板的一侧表面形成第一表面。多个第二肋板在前述多个第一肋板的另一侧表面沿横向间隔设置且沿纵向延伸，且前述多个第二肋板的远离第一肋板的一侧表面形成第二表面。也就是说，前述多个第二肋板设置在前述多个第一肋板的一侧表面上。前述多个第一肋板和前述多个第二肋板相背的表面分别形成第一表面和第二表面；即，前述多个第一肋板和前述多个第二肋板相背的表面形成第一表面；前述多个第二肋板和前述多个第一肋板相背的表面形成第二表面。相邻的第一肋板之间、相邻的第二肋板之间、以及相邻的第一肋板与第二肋板之间的间隙形成前述多个气流通道。其中，两个相邻的第一肋板之间的间隙形成在第一表面上延伸的第一气流通道，两个相邻的第二肋板之间的间隙形成在第二表面上延伸的第二气流通道，相邻的第一肋板与第二肋板之间的间隙形成贯穿支撑框架32连通第一表面和第二表面的第三气流通道。即，由所有第一肋板和所有第二肋板形成的交叉结构形成前述多个气流通道。In some embodiments, the support frame 32 can include a bezel, a plurality of first ribs, and a plurality of second ribs. The plurality of first ribs are longitudinally spaced apart inside the frame and extend in the lateral direction, and one side surface of the plurality of first ribs forms a first surface. a plurality of second ribs are laterally spaced apart and extend in a longitudinal direction on the other side surface of the plurality of first ribs, and a side surface of the plurality of second ribs away from the first rib forms a second surface . That is, the plurality of second ribs are disposed on one side surface of the plurality of first ribs. The surfaces of the plurality of first ribs and the plurality of second ribs respectively form a first surface and a second surface; that is, surfaces of the plurality of first ribs and the plurality of second ribs Forming a first surface; a surface of the plurality of second ribs opposite to the plurality of first ribs forming a second surface. A plurality of airflow passages are formed between adjacent first ribs, between adjacent second ribs, and between adjacent first ribs and second ribs. Wherein the gap between the two adjacent first ribs forms a first air flow passage extending on the first surface, and the gap between the two adjacent second ribs forms a second extension on the second surface The two air flow passages, the gap between the adjacent first ribs and the second ribs form a third air flow passage that penetrates the first surface and the second surface through the support frame 32. That is, the intersecting structure formed by all of the first ribs and all of the second ribs forms the aforementioned plurality of air flow passages.
上述支撑框架32通过在其边框内部设置沿纵向间隔且沿横向延伸的多个第一肋板和在前述多个第一肋板的一侧表面沿横向间隔且沿纵向延伸的多个第二肋板，从而一方面保证了气流通道的连贯性，另一方面大大缩小了支撑框架的体积，并且极大地增强了支撑框架32的强度。此外，支撑框架32的上述结构保证了气调膜36能够获得足够的支撑，即使在富氧气体收集腔内部负压较大的情况下也能够始终保持较好的平整度，保证了气调膜组件30的使用寿命。The support frame 32 is provided with a plurality of first ribs extending longitudinally and extending in the lateral direction inside the frame and a plurality of second ribs extending laterally and longitudinally on one side surface of the plurality of first ribs The plate thus ensures the continuity of the air flow passage on the one hand, and greatly reduces the volume of the support frame on the other hand, and greatly enhances the strength of the support frame 32. In addition, the above structure of the support frame 32 ensures that the air-conditioning membrane 36 can obtain sufficient support, and can maintain a good flatness even in the case of a large negative pressure inside the oxygen-rich gas collecting chamber, thereby ensuring the gas regulating film. The service life of assembly 30.
抽气孔33可在边框的纵向中部设置于边框的横向一侧。这样设置相当于从气调膜组件30的中部抽气，有利于气调膜36均匀透气。抽气孔33可为台阶孔或者说阶梯孔，以 在其通过软管与抽气泵40连接时，保证连接部位的气密性。The air vent 33 may be disposed on the lateral side of the frame in the longitudinal middle portion of the frame. This arrangement is equivalent to pumping air from the center of the air-conditioning membrane module 30, which is advantageous for the air-conditioning membrane 36 to be uniformly ventilated. The air vent 33 can be a stepped hole or a stepped hole to When it is connected to the air pump 40 via a hose, the airtightness of the joint is ensured.
此外，支撑框架32的上述结构保证了气调膜36能够获得足够的支撑，即使在富氧气体收集腔内部负压较大的情况下也能够始终保持较好的平整度，保证了气调膜组件30的使用寿命。In addition, the above structure of the support frame 32 ensures that the air-conditioning membrane 36 can obtain sufficient support, and can maintain a good flatness even in the case of a large negative pressure inside the oxygen-rich gas collecting chamber, thereby ensuring the gas regulating film. The service life of assembly 30.
抽气泵40的进气端经由抽气管路51分别连接抽气孔33，以连通至多个第一密闭组件71内的气调膜组件30的富氧气体收集腔，并配置成将富氧气体收集腔的气体向外抽出，以使气调保鲜子空间271内的氧气含量不断降低，从而在气调保鲜子空间271内形成富氮贫氧以利于食物保鲜的气体氛围。抽气泵40可以设置于压缩机舱24内，可充分利用压缩机舱24空间，不额外占用其他地方，因此不会增大冷藏冷冻装置的额外体积，可使冷藏冷冻装置的结构紧凑。The intake end of the air pump 40 is connected to the air suction hole 33 via the air suction line 51 to communicate with the oxygen-rich gas collecting chamber of the air conditioning membrane module 30 in the plurality of first airtight components 71, and is configured to set the oxygen-rich gas collecting chamber The gas is extracted outward to continuously reduce the oxygen content in the modified atmosphere sub-space 271, thereby forming a gas atmosphere rich in nitrogen and oxygen in the modified atmosphere sub-space 271 to facilitate food preservation. The air pump 40 can be disposed in the compressor compartment 24, and can fully utilize the space of the compressor compartment 24 without occupying other places, so that the extra volume of the refrigerating and freezing apparatus is not increased, and the structure of the refrigerating and freezing apparatus can be made compact.
控制器110作为本实施例的冷藏冷冻装置的控制核心，可以对上述制冷***70以及气调保鲜***80控制，对制冷***70以及气调保鲜***80的开机条件和关机条件进行判断。其中对气调保鲜***80的控制可以包括对风机60以及抽气泵40的控制。图8是是根据本发明一个实施例的冷藏冷冻装置的控制***的示意框图。控制器110分别与抽气泵40、风机60、气调保鲜子空间开闭检测装置82、氧气浓度传感器87、冷藏室开闭检测装置72、温度传感器84、制冷***70、报警提示器86分别信号连接。As the control core of the refrigerating and freezing apparatus of the present embodiment, the controller 110 can control the above-described refrigerating system 70 and the fresh air preserving system 80, and judge the starting condition and the shutdown condition of the refrigerating system 70 and the fresh air preserving system 80. Control of the modified atmosphere freshening system 80 therein may include control of the blower 60 and the extraction pump 40. Figure 8 is a schematic block diagram of a control system of a refrigerating and freezing apparatus in accordance with one embodiment of the present invention. The controller 110 and the air pump 40, the fan 60, the modified air conditioning subspace opening and closing detecting device 82, the oxygen concentration sensor 87, the refrigerating chamber opening and closing detecting device 72, the temperature sensor 84, the refrigeration system 70, and the alarm presenter 86, respectively. connection.
气调保鲜子空间开闭检测装置82和冷藏室开闭检测装置72可以用于分别检测气调保鲜子空间271所在的间室(例如冷藏室27)以及气调保鲜子空间271被开闭的事件，其使用霍尔器件、磁敏器件来检测门体的开合动作或者抽屉本体23端板与抽屉筒体22的开合动作。在使用抽屉型储物间室作为气调保鲜子空间271时，气调保鲜子空间开闭检测装置82可以分别设置于抽屉本体23的端板和抽屉筒体22上；冷藏室开闭检测装置72可以分别设置于箱体20以及对应的门体上。The modified atmosphere storage opening/closing detecting device 82 and the refrigerating chamber opening and closing detecting device 72 can be used to detect the compartment (for example, the refrigerating chamber 27) where the modified atmosphere subspace 271 is located, and the modified atmosphere subspace 271 is opened and closed. The event uses a Hall device or a magnetic sensitive device to detect the opening and closing action of the door body or the opening and closing action of the end plate of the drawer body 23 and the drawer cylinder 22. When the drawer type storage compartment is used as the atmosphere-preserving sub-space 271, the modified-air-preserving sub-space opening and closing detecting means 82 may be respectively disposed on the end plate of the drawer body 23 and the drawer cylinder 22; the refrigerating compartment opening and closing detecting means 72 can be respectively disposed on the casing 20 and the corresponding door body.
温度传感器84用于检测冷藏冷冻装置内储藏间室的温度，例如可以包括设置于冷藏室27内的冷藏温度传感器、冷冻室25内的冷冻温度传感器、变温室26内的变温传感器。温度传感器84检测的温度值可以用于与设定温度进行比较，以确定是否需要制冷***70(包括压缩机以及冷藏风机、冷冻风机、各风门)启动。The temperature sensor 84 is for detecting the temperature of the storage compartment in the refrigerating and freezing apparatus, and may include, for example, a refrigerating temperature sensor provided in the refrigerating compartment 27, a freezing temperature sensor in the freezing compartment 25, and a temperature change sensor in the changing chamber 26. The temperature value detected by temperature sensor 84 can be used to compare with the set temperature to determine if refrigeration system 70 (including compressor and refrigeration fan, chiller, damper) is required to be activated.
氧气浓度传感器87设置于气调保鲜子空间271内，用于测量气调保鲜子空间271内的气体氛围指标。其可以选用隔膜式伽伐尼电池式、电化学、催化燃烧、恒定电位电解式等多种类型的氧气浓度传感器，在一些可选实施例中，氧气浓度传感器87也可以使用气体分析仪进行替换，以用于测量气调保鲜子空间271内的气体含量，包括氧气含量，也可以包括氮气含量、二氧化碳含量等。氧气浓度传感器87可以根据需要进行配置，在一些实施例中，可以通过控制气调保鲜***80的启停时间来进行控制，而不必进行氧气浓度的控制。The oxygen concentration sensor 87 is disposed in the modified atmosphere sub-space 271 for measuring the gas atmosphere index in the modified atmosphere sub-space 271. It can use various types of oxygen concentration sensors such as diaphragm type galvanic battery type, electrochemical, catalytic combustion, constant potential electrolytic type, etc. In some alternative embodiments, the oxygen concentration sensor 87 can also be replaced by a gas analyzer. For measuring the gas content in the modified atmosphere sub-space 271, including the oxygen content, may also include nitrogen content, carbon dioxide content, and the like. The oxygen concentration sensor 87 can be configured as desired, and in some embodiments, can be controlled by controlling the start-stop time of the modified atmosphere storage system 80 without having to control the oxygen concentration.
报警提示器86可以使用显示、声光、远程报警等方式向用户进行信息提示。The alarm reminder 86 can present information to the user by means of display, sound and light, remote alarm, and the like.
控制器110，作为本实施例的冷藏冷冻装置的控制核心，可以通过各种微处理器(包括单片机、数字信号处理器等)及其附属电路(电源、存储器、时钟电路)通过配置相应的控制程序来实现。为了保证制冷***70和气调保鲜***80的协调工作，在本实施例的冷藏冷冻装置中，控制器110可以通过设置保鲜运行标识来确定是否允许气调保鲜***80启动工作。The controller 110, as the control core of the refrigerating and freezing device of the embodiment, can be configured and controlled by various microprocessors (including a single chip microcomputer, a digital signal processor, etc.) and its auxiliary circuits (power source, memory, clock circuit). The program is implemented. In order to ensure the coordinated operation of the refrigeration system 70 and the modified atmosphere preserving system 80, in the refrigerating and freezing apparatus of the present embodiment, the controller 110 may determine whether to allow the modified atmosphere preserving system 80 to start work by setting a fresh-keeping operation indicator.
保鲜运行标识可以为控制器110某一寄存器中标识位，其至少包括两种状态：分别指示出允许气调保鲜***80运行和禁止气调保鲜***80运行。在进行气调保鲜控制时，控制器110可以首先获取气调保鲜***80的保鲜运行标识。保鲜运行标识根据冷藏冷冻装置的运行事件进行设置，并且指示出是否允许气调保鲜***80运行。冷藏冷冻装置的运行事件至少包括：冷藏冷冻装置的运行时刻、制冷***70的启停事件、储物空间被开闭的事件、气调保鲜子空间271被开闭的事件。 The freshness running indicator may be a flag in a register of the controller 110, which includes at least two states: respectively indicating that the modified atmosphere preservation system 80 is allowed to operate and the modified atmosphere preservation system 80 is prohibited from operating. When the air conditioning control is performed, the controller 110 may first acquire the fresh running indicator of the modified atmosphere preservation system 80. The freshness keeping indicator is set according to an operation event of the refrigerating and freezing apparatus, and indicates whether or not the modified atmosphere preservation system 80 is allowed to operate. The operation events of the refrigerating and freezing apparatus include at least an operation timing of the refrigerating and freezing apparatus, an opening and closing event of the refrigerating system 70, an event in which the storage space is opened and closed, and an event in which the modified air preserving subspace 271 is opened and closed.
上述冷藏冷冻装置的运行事件可以通过冷藏冷冻装置设置的各种传感器、检测装置以及控制器110下发的控制指令进行确定。例如冷藏冷冻装置的运行时刻可以利用冷藏冷冻装置的时钟确定，制冷***70的启停事件可以通过检测压缩机的状态或者通过控制器110向制冷***70发送的控制指令确定、储物空间被开闭的事件可以通过冷藏室开闭检测装置72来进行检测、气调保鲜子空间271被开闭的事件可通过气调保鲜子空间271开闭检测装置82来进行检测。The operation events of the above-described refrigerating and freezing apparatus can be determined by various sensors provided by the refrigerating and freezing apparatus, detection means, and control commands issued by the controller 110. For example, the running time of the refrigerating and freezing device can be determined by the clock of the refrigerating and freezing device, and the start-stop event of the refrigerating system 70 can be determined by detecting the state of the compressor or by a control command sent from the controller 110 to the refrigerating system 70, and the storage space is opened. The closed event can be detected by the refrigerator compartment opening/closing detecting device 72, and the event that the air-conditioning fresh-keeping subspace 271 is opened and closed can be detected by the air-conditioning fresh-keeping subspace 271 opening and closing detecting device 82.
在保鲜运行标识为允许气调保鲜***80运行的情况下，控制器110可以判断气调保鲜***80是否满足预设开机条件，并在满足开机条件的情况下，启动气调保鲜***80以对气调保鲜子空间271的气体进行调节，直至气调保鲜***80达到预设的关机条件。In the case that the freshness keeping operation is to allow the operation of the modified atmosphere freshening system 80, the controller 110 may determine whether the modified atmosphere freshening system 80 satisfies the preset starting condition, and if the starting condition is satisfied, start the modified atmosphere freshening system 80 to The gas of the modified atmosphere sub-space 271 is adjusted until the modified atmosphere storage system 80 reaches a preset shutdown condition.
控制器110设置上述保鲜运行标识的过程可以包括：在初始状态下，可以将上述保鲜运行标识设置为禁止状态。另外在制冷***70启动后，将保鲜运行标识设置为禁止状态，并在制冷***70被关闭的第一预设时间后，将保鲜运行标识设置为允许状态。在进入冷藏冷冻装置的频繁开门时段后，将保鲜运行标识设置为禁止状态，并且在等待频繁开门时段经过后，将保鲜运行标识设置为允许状态。在储物空间被打开后，将保鲜运行标识设置为禁止状态，并且在储物空间被关闭的第二预设时间后并且气调保鲜子空间271持续关闭达到第三预设时间的情况下，将保鲜运行标识设置为允许状态。The process of the controller 110 setting the fresh-keeping running identifier may include: setting the fresh-keeping running identifier to a prohibited state in an initial state. In addition, after the refrigeration system 70 is started, the freshness operation flag is set to the prohibition state, and after the first preset time of the refrigeration system 70 is turned off, the freshness operation flag is set to the permission state. After entering the frequent opening time period of the refrigerating and freezing device, the fresh-keeping running flag is set to the prohibited state, and after waiting for the frequent opening time period to elapse, the fresh-keeping running flag is set to the permitted state. After the storage space is opened, the fresh-keeping running flag is set to the prohibited state, and after the second preset time when the storage space is closed and the modified-air-preserving sub-space 271 is continuously closed for the third preset time, Set the freshness run flag to the allowed state.
通过以上设置，可以避免气调保鲜***80在以下情况下启动：与制冷***70同时处于启动状态、在用户经常取放东西的时间段内启动、在用户打开储物间室的情况下启动。上述第一预设时间、第二预设时间、第三预设时间可以根据冷藏冷冻装置的运行工况以及规格进行设置。例如第一预设时间可以根据制冷***70关闭后压缩机停止运转并且散热达到一定程度的时间进行确定，从而避免抽气泵40与压缩机的热量叠加和噪声叠加。第二预设时间可以根据储物间室的关门后，制冷***70恢复正常运行的时间进行设置。第三预设时间可以根据气调保鲜子空间271的气体泄漏情况进行设置，例如可以根据测试确定气调保鲜子空间271在不被开启的情况下，富氮贫氧的气体氛围无法满足保鲜储藏要求的时间进行设置。With the above arrangement, it is possible to prevent the modified atmosphere freshening system 80 from being started up in the same state as the cooling system 70, in the period in which the user frequently picks up and put things, and in the case where the user opens the storage compartment. The first preset time, the second preset time, and the third preset time may be set according to operating conditions and specifications of the refrigerating and freezing device. For example, the first preset time may be determined according to the time when the compressor is stopped after the refrigeration system 70 is turned off and the heat dissipation reaches a certain degree, thereby avoiding heat accumulation and noise superposition of the air pump 40 and the compressor. The second preset time may be set according to the time when the refrigeration system 70 resumes normal operation after the door of the storage compartment is closed. The third preset time may be set according to the gas leakage condition of the modified atmosphere sub-space 271. For example, according to the test, the modified atmosphere-preserving sub-space 271 may not be opened, and the nitrogen-rich and oxygen-poor gas atmosphere cannot satisfy the fresh-keeping storage. The required time is set.
冷藏冷冻装置的频繁开门时段可以根据用户的使用习惯进行总结得出，例如以天为周期，将每天中打开次数超过预定次数的时间作为上述频繁开门时段。另外在另一可选实施例中，也可以以周为单位进行总结，避免在用户经常开启冷藏冷冻装置门体的时间段启动气调保鲜***80。The frequent opening period of the refrigerating and freezing device can be summarized according to the user's usage habits, for example, the daily opening period is more than the predetermined number of times in the daily cycle. In addition, in another alternative embodiment, it is also possible to summarize in units of weeks to avoid starting the modified atmosphere preservation system 80 during the period in which the user frequently opens the door of the refrigerating and freezing device.
保鲜运行标识设置为允许状态的情况下，控制器110可以根据气调保鲜子空间271以及气调保鲜***80的运行情况进行开机条件的判断。When the fresh-keeping operation flag is set to the permission state, the controller 110 can determine the power-on condition according to the operation state of the modified air-conditioning subspace 271 and the modified atmosphere preservation system 80.
在设置氧气浓度传感器87的情况下，可以根据氧气浓度进行开机和关机条件的判断。不同种类的食物的最佳储藏环境的氧气浓度范围可能不同，在一些可选实施例中，可以预先通过测试确定多类种类食物对应的氧气浓度范围，并且在气调保鲜子空间271通过用户输入或者自动识别方式确定食物的种类信息，确定对应的氧气浓度范围。从而开机条件可以为气调保鲜子空间271的氧气浓度高于或等于预设的氧气浓度上限，也就是在气调保鲜子空间271的氧气浓度高于或等于氧气浓度上限的情况下，需要启动抽气泵40和风机60。关机条件可以为气调保鲜子空间271的氧气浓度低于或等于预设的氧气浓度下限，也就是在气调保鲜子空间271的氧气浓度高于或等于氧气浓度上限的情况下，需要关闭抽气泵40和风机60，完成气调保鲜运行。In the case where the oxygen concentration sensor 87 is provided, the determination of the startup and shutdown conditions can be made based on the oxygen concentration. The optimal storage environment of different kinds of foods may have different oxygen concentration ranges. In some alternative embodiments, the oxygen concentration range corresponding to the plurality of types of foods may be determined in advance by testing, and the user inputs through the user input in the modified atmosphere sub-space 271. Or the automatic identification method determines the type information of the food and determines the corresponding oxygen concentration range. Therefore, the starting condition may be that the oxygen concentration of the modified atmosphere sub-space 271 is higher than or equal to a preset upper limit of the oxygen concentration, that is, in the case that the oxygen concentration of the modified air-preserving sub-space 271 is higher than or equal to the upper limit of the oxygen concentration, the startup is required. The air pump 40 and the fan 60. The shutdown condition may be that the oxygen concentration of the modified atmosphere sub-space 271 is lower than or equal to a preset lower limit of the oxygen concentration, that is, when the oxygen concentration of the modified atmosphere sub-space 271 is higher than or equal to the upper limit of the oxygen concentration, the pumping needs to be turned off. The air pump 40 and the fan 60 complete the air conditioning and fresh-keeping operation.
另一种可选的开关机条件可以为，预先对抽气泵40的抽气效率以及气调保鲜子空间271的气体泄漏情况进行测试，确定出抽气泵40完成气调保鲜抽气的时间作为第六预设时间，并且将气调保鲜子空间271内气体自然泄漏至氧气浓度无法满足保鲜要求的时间作为第五预设时间。从而开机条件可以包括：距离上次气调保鲜***80完成气调保鲜子空间271的气体调节的时间超过第五预设时间。相应的关机条件可以包括：气调保鲜*** 80持续运行的时间达到第六预设时间。上述第五预设时间还可以根据气调保鲜子空间271的运行状态进行调整，例如在比较长的时间内气调保鲜子空间271持续未被打开，此时可以适当延长第五预设时间。Another optional on-off condition may be that the pumping efficiency of the air pump 40 and the gas leakage of the modified air conditioning subspace 271 are tested in advance, and the time for the air pump 40 to complete the air conditioning and air pumping is determined. Six preset times, and the gas in the modified atmosphere sub-space 271 naturally leaks to a time when the oxygen concentration cannot meet the freshness requirement as the fifth preset time. Therefore, the booting condition may include: the time from the last modified atmosphere storage system 80 to complete the gas adjustment of the modified atmosphere sub-space 271 exceeds the fifth preset time. The corresponding shutdown conditions may include: modified atmosphere preservation system The 80 continuous operation reaches the sixth preset time. The fifth preset time may also be adjusted according to the operating state of the modified air conditioning subspace 271. For example, the air conditioning fresh subspace 271 is not continuously opened for a relatively long period of time, and the fifth preset time may be appropriately extended.
另外控制器在气调保鲜***80运行的情况下，还可以持续监测气调保鲜***80的保鲜运行标识，若保鲜运行标识被设置为禁止状态(也即出现需要将保鲜运行标识被设置为禁止状态的冷藏冷冻装置运行时间，例如制冷***70开启、储物空间被打开等)，关闭启动气调保鲜***80。In addition, in the case that the controller operates in the modified atmosphere freshening system 80, the fresh-keeping running indicator of the modified atmosphere fresh-keeping system 80 can be continuously monitored, and if the fresh-keeping running indicator is set to the prohibited state (that is, the fresh-keeping running flag needs to be set to be prohibited) The state of the refrigerating and freezing device operating time, for example, the refrigeration system 70 is turned on, the storage space is opened, and the like, and the activated gas fresh-keeping system 80 is turned off.
控制器110通过上述的控制逻辑，使制冷***70优选启动，保证储藏空间的温度符合储物要求，然后相应控制气调保鲜***80，避免了气调保鲜***80与制冷***70互相影响，同时避免了对应用户正常使用冷藏冷冻装置产生影响，提高了用户的使用体验。Through the control logic described above, the controller 110 preferably activates the refrigeration system 70 to ensure that the temperature of the storage space meets the storage requirements, and then controls the modified atmosphere preservation system 80 accordingly, thereby avoiding interaction between the modified atmosphere preservation system 80 and the refrigeration system 70, and simultaneously The influence of the user's normal use of the refrigerating and freezing device is avoided, and the user experience is improved.
本实施例还提供了一种冷藏冷冻装置的气调保鲜控制方法，该气调保鲜控制方法可以由上述控制器110执行，对上述实施例的冷藏冷冻装置的气调保鲜***80进行控制，从而保证气调保鲜的效果。图9是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法的示意图。该实施例的冷藏冷冻装置的气调保鲜控制方法一般性地可以包括：The embodiment further provides a controlled atmosphere freshening control method for the refrigerating and freezing device, which can be executed by the controller 110 to control the modified atmosphere storage system 80 of the refrigerating and freezing device of the above embodiment, thereby Guarantee the effect of keeping the atmosphere fresh. 9 is a schematic diagram of a controlled atmosphere freshening control method of a refrigerating and freezing apparatus according to an embodiment of the present invention. The modified atmosphere freshening control method of the refrigerating and freezing apparatus of this embodiment may generally include:
步骤S902，获取气调保鲜***80的保鲜运行标识，Step S902, obtaining a fresh-keeping operation identifier of the modified atmosphere fresh-keeping system 80,
步骤S904，在保鲜运行标识为允许气调保鲜***80运行的情况下，判断气调保鲜***80是否满足预设开机条件；Step S904, if the fresh-keeping operation indicator is to allow the operation of the modified atmosphere fresh-keeping system 80, it is determined whether the modified-air preservation system 80 satisfies the preset power-on condition;
步骤S906，在满足开机条件的情况下，启动气调保鲜***80以对气调保鲜子空间271的气体进行调节，直至气调保鲜***80达到预设的关机条件。In step S906, the air conditioning system 80 is activated to adjust the gas of the modified air conditioning subspace 271 until the preset air conditioning system 80 reaches the preset shutdown condition.
步骤S902可以根据保鲜运行标识确定当前工况下是否允许气调保鲜***80运行。上述保鲜运行标识根据冷藏冷冻装置的运行事件进行设置，并且指示出是否允许气调保鲜***80运行，冷藏冷冻装置的运行事件至少包括：冷藏冷冻装置的运行时刻、制冷***70的启停事件、储物空间被开闭的事件、气调保鲜子空间271被开闭的事件。Step S902 can determine whether the modified atmosphere preservation system 80 is allowed to operate under the current working condition according to the freshness running indicator. The fresh-keeping operation indicator is set according to an operation event of the refrigerating and freezing device, and indicates whether the operation of the fresh-keeping and fresh-keeping system 80 is permitted. The operation events of the refrigerating and freezing device include at least: an operation time of the refrigerating and freezing device, a start-stop event of the refrigerating system 70, The event that the storage space is opened and closed, and the event that the modified atmosphere subspace 271 is opened and closed.
影响保鲜运行标识的设置的影响因素至少包括：制冷***70的状态、对用户使用冷藏冷冻装置的预测、冷藏冷冻装置的开门事件。相应地，根据冷藏冷冻装置的运行事件设置保鲜运行标识的步骤可以包括：The influencing factors affecting the setting of the fresh-keeping operation mark include at least the state of the refrigeration system 70, the prediction of the user using the refrigerating and freezing device, and the opening event of the refrigerating and freezing device. Correspondingly, the step of setting the freshness running indicator according to the running event of the refrigerating and freezing device may include:
在制冷***70启动后，将保鲜运行标识设置为禁止状态，并在制冷***70被关闭的第一预设时间后，将保鲜运行标识设置为允许状态。After the refrigeration system 70 is started, the freshness operation flag is set to the prohibition state, and after the first predetermined time when the refrigeration system 70 is turned off, the freshness operation flag is set to the permission state.
在进入冷藏冷冻装置的频繁开门时段后，将保鲜运行标识设置为禁止状态，并且在等待频繁开门时段经过后，将保鲜运行标识设置为允许状态。After entering the frequent opening time period of the refrigerating and freezing device, the fresh-keeping running flag is set to the prohibited state, and after waiting for the frequent opening time period to elapse, the fresh-keeping running flag is set to the permitted state.
在储物空间被打开后，将保鲜运行标识设置为禁止状态；以及在储物空间被关闭的第二预设时间后并且气调保鲜子空间271持续关闭达到第三预设时间的情况下，将保鲜运行标识设置为允许状态。After the storage space is opened, the fresh-keeping running flag is set to a prohibited state; and after the second preset time when the storage space is closed and the modified-air-preserving sub-space 271 is continuously closed for the third preset time, Set the freshness run flag to the allowed state.
上述第一预设时间、第二预设时间、第三预设时间可以根据冷藏冷冻装置的运行特点进行设置。例如第一预设时间可以根据制冷***70关闭后压缩机停止运转并且散热达到一定程度的时间进行确定，从而避免抽气泵40与压缩机的热量叠加和噪声叠加。第二预设时间可以根据储物间室的关门后，制冷***70恢复正常运行的时间进行设置。第三预设时间可以根据气调保鲜子空间271的气体泄漏情况进行设置，例如可以根据测试确定气调保鲜子空间271在不被开启的情况下，富氮贫氧的气体氛围无法满足保鲜储藏要求的时间进行设置。The first preset time, the second preset time, and the third preset time may be set according to operating characteristics of the refrigerating and freezing device. For example, the first preset time may be determined according to the time when the compressor is stopped after the refrigeration system 70 is turned off and the heat dissipation reaches a certain degree, thereby avoiding heat accumulation and noise superposition of the air pump 40 and the compressor. The second preset time may be set according to the time when the refrigeration system 70 resumes normal operation after the door of the storage compartment is closed. The third preset time may be set according to the gas leakage condition of the modified atmosphere sub-space 271. For example, according to the test, the modified atmosphere-preserving sub-space 271 may not be opened, and the nitrogen-rich and oxygen-poor gas atmosphere cannot satisfy the fresh-keeping storage. The required time is set.
冷藏冷冻装置的频繁开门时段可以根据用户的使用习惯进行总结得出，例如以天为周期，将每天中打开次数超过预定次数的时间作为上述频繁开门时段。另外在另一可选实施例中，也可以以周为单位进行总结，避免在用户经常开启冷藏冷冻装置门体的时间段启动气调保鲜***80。The frequent opening period of the refrigerating and freezing device can be summarized according to the user's usage habits, for example, the daily opening period is more than the predetermined number of times in the daily cycle. In addition, in another alternative embodiment, it is also possible to summarize in units of weeks to avoid starting the modified atmosphere preservation system 80 during the period in which the user frequently opens the door of the refrigerating and freezing device.
在储物空间被关闭后，如果气调保鲜子空间271保持开启状态的时间超过第四预设时 间，输出密封报警提示信息。也就是如果出现用户已经关闭冷藏冷冻间室的门体，但是没有将密封气调保鲜子空间271的器具关闭到位，例如为将抽屉本体23关闭到位的情况下，可以进行提示，避免无法保证气调保鲜子空间271的密封。After the storage space is closed, if the modified atmosphere sub-space 271 remains open for more than the fourth preset time In the meantime, output a sealed alarm message. That is, if there is a door body in which the user has closed the refrigerating and freezing compartment, but the appliance for sealing the air conditioning sub-space 271 is not closed, for example, in the case where the drawer body 23 is closed, a prompt can be made to avoid the inability to ensure the gas. The seal of the fresh-keeping sub-space 271 is adjusted.
保鲜运行标识设置为允许状态的情况下，控制器110可以根据气调保鲜子空间271以及气调保鲜***80的运行情况进行开机条件的判断。When the fresh-keeping operation flag is set to the permission state, the controller 110 can determine the power-on condition according to the operation state of the modified air-conditioning subspace 271 and the modified atmosphere preservation system 80.
在设置氧气浓度传感器87的情况下，可以根据氧气浓度进行开机和关机条件的判断。在一些可选实施例中，可以预先通过测试确定多类种类食物对应的氧气浓度范围，并且在气调保鲜子空间271放入食物时，通过用户输入或者自动识别方式确定食物的种类信息，确定对应的氧气浓度范围。从而开机条件可以为气调保鲜子空间271的氧气浓度高于或等于预设的氧气浓度上限，也就是在气调保鲜子空间271的氧气浓度高于或等于氧气浓度上限的情况下，需要启动抽气泵40和风机60。关机条件可以为气调保鲜子空间271的氧气浓度低于或等于预设的氧气浓度下限，也就是在气调保鲜子空间271的氧气浓度高于或等于氧气浓度上限的情况下，需要关闭抽气泵40和风机60，完成气调保鲜运行。In the case where the oxygen concentration sensor 87 is provided, the determination of the startup and shutdown conditions can be made based on the oxygen concentration. In some optional embodiments, the oxygen concentration range corresponding to the plurality of types of foods may be determined in advance by testing, and when the food is placed in the modified atmosphere sub-space 271, the type information of the food is determined by user input or automatic identification to determine Corresponding oxygen concentration range. Therefore, the starting condition may be that the oxygen concentration of the modified atmosphere sub-space 271 is higher than or equal to a preset upper limit of the oxygen concentration, that is, in the case that the oxygen concentration of the modified air-preserving sub-space 271 is higher than or equal to the upper limit of the oxygen concentration, the startup is required. The air pump 40 and the fan 60. The shutdown condition may be that the oxygen concentration of the modified atmosphere sub-space 271 is lower than or equal to a preset lower limit of the oxygen concentration, that is, when the oxygen concentration of the modified atmosphere sub-space 271 is higher than or equal to the upper limit of the oxygen concentration, the pumping needs to be turned off. The air pump 40 and the fan 60 complete the air conditioning and fresh-keeping operation.
另一种可选的开关机条件可以为，预先对抽气泵40的抽气效率以及气调保鲜子空间271的气体泄漏情况进行测试，确定出抽气泵40完成气调保鲜抽气的时间作为第六预设时间，并且将气调保鲜子空间271内气体自然泄漏至氧气浓度无法满足保鲜要求的时间作为第六预设时间。从而开机条件可以包括：距离上次气调保鲜***80完成气调保鲜子空间271的气体调节的时间超过第五预设时间。相应的关机条件可以包括：气调保鲜***80持续运行的时间达到第六预设时间。上述第五预设时间还可以根据气调保鲜子空间271的运行状态进行调整，例如在比较长的时间内气调保鲜子空间271持续未被打开，此时可以适当延长第五预设时间。Another optional on-off condition may be that the pumping efficiency of the air pump 40 and the gas leakage of the modified air conditioning subspace 271 are tested in advance, and the time for the air pump 40 to complete the air conditioning and air pumping is determined. Six preset times, and the gas in the modified atmosphere sub-space 271 naturally leaks to a time when the oxygen concentration cannot meet the freshness requirement as the sixth preset time. Therefore, the booting condition may include: the time from the last modified atmosphere storage system 80 to complete the gas adjustment of the modified atmosphere sub-space 271 exceeds the fifth preset time. The corresponding shutdown condition may include: the time during which the modified atmosphere preservation system 80 continues to operate reaches a sixth preset time. The fifth preset time may also be adjusted according to the operating state of the modified air conditioning subspace 271. For example, the air conditioning fresh subspace 271 is not continuously opened for a relatively long period of time, and the fifth preset time may be appropriately extended.
另外在气调保鲜***80运行的情况下，还可以持续监测气调保鲜***80的保鲜运行标识，若保鲜运行标识被设置为禁止状态(也即出现需要将保鲜运行标识被设置为禁止状态的冷藏冷冻装置运行时间，例如制冷***70开启、储物空间被打开等)，关闭启动气调保鲜***80。In addition, in the case of the operation of the modified atmosphere freshening system 80, the fresh-keeping operation mark of the modified atmosphere fresh-keeping system 80 can be continuously monitored, and if the fresh-keeping running mark is set to the prohibited state (that is, the fresh-keeping running flag needs to be set to the prohibited state) The operation time of the refrigerating and freezing device, for example, the refrigeration system 70 is turned on, the storage space is opened, and the like, and the activated atmosphere fresh-keeping system 80 is turned off.
图10是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法的流程示意框图，冷藏冷冻装置在上电后可以循环执行以下步骤：10 is a schematic block diagram of a method for controlling a fresh air conditioning of a refrigerating and freezing apparatus according to an embodiment of the present invention. The refrigerating and freezing apparatus may cyclically perform the following steps after power-on:
步骤S1002，冷藏冷冻装置上电，进行初始化，关闭制冷***70以及气调保鲜***80，包括关闭制冷***70的压缩机、电磁阀，关闭气调保鲜***80的抽气泵40、风机60。In step S1002, the refrigerating and freezing apparatus is powered on, initialized, and the refrigeration system 70 and the fresh air preserving system 80 are turned off, and the compressor and the electromagnetic valve of the refrigeration system 70 are closed, and the air pump 40 and the fan 60 of the air conditioning system 80 are closed.
步骤S1004，采集冷藏冷冻装置的运行工况数据，包括储物空间的温度、气调保鲜子空间271的氧气浓度、门体的开闭情况等。In step S1004, the operating condition data of the refrigerating and freezing device is collected, including the temperature of the storage space, the oxygen concentration of the modified atmosphere sub-space 271, and the opening and closing of the door body.
步骤S1006，执行制冷***70控制流程。In step S1006, the control flow of the refrigeration system 70 is executed.
步骤S1008，确定保鲜运行标识。In step S1008, the fresh-keeping running identifier is determined.
步骤S1010，执行气调保鲜***80控制流程。In step S1010, the control flow of the modified atmosphere freshening system 80 is executed.
在执行上述流程的过程中，如果出现中断事件(例如断电、用户开启门体)的情况，进行断点标识，优先执行应急中断流程，完成后返回断点标识的步骤继续循环执行。In the process of executing the above process, if an interrupt event occurs (such as power failure, the user opens the door), the breakpoint identification is performed, and the emergency interrupt process is executed preferentially, and the step of returning the breakpoint identification after completion is continued to be executed cyclically.
利用上述步骤，在协同控制时，制冷***70优先于气调保鲜***80。With the above steps, the refrigeration system 70 takes precedence over the modified atmosphere preservation system 80 during coordinated control.
图11是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法中在气调保鲜子空间271闭合后的判断流程示意图，冷藏冷冻装置在气调保鲜子空间271闭合后可以执行以下步骤：11 is a schematic flow chart showing the determination of the air-conditioning preservative subspace 271 after the air-conditioning fresh-keeping subspace 271 is closed in the air-conditioning preserving control method of the refrigerating and freezing apparatus according to an embodiment of the present invention. The refrigerating and freezing apparatus can perform the following steps after the modified air-preserving sub-space 271 is closed. :
步骤S1102，检测到气调保鲜子空间271被闭合，开始进行气调保鲜***80控制判断；Step S1102, detecting that the modified atmosphere sub-space 271 is closed, starting to control the air-conditioning preservation system 80;
步骤S1104，判断制冷***70是否处于运行中，若否，则结束判断；Step S1104, determining whether the refrigeration system 70 is in operation, and if not, ending the determination;
步骤S1106，判断气调保鲜子空间271的闭合时间是否超过预设时间，例如图中示出 的30分钟，若否，则结束判断，等待经过30分钟的时间后重新判断；Step S1106, determining whether the closing time of the modified air conditioning subspace 271 exceeds a preset time, for example, shown in the figure. 30 minutes, if no, the judgment is over, waiting for 30 minutes to re-judge;
步骤S1108，判断目前是否处于频繁开门时段内，若是，则结束判断；Step S1108, determining whether it is currently in the frequent opening time period, and if so, ending the determination;
步骤S1110，判断是否满足气调保鲜开机条件，例如氧气浓度上升至预设的氧气浓度上限等，若否，则结束判断；In step S1110, it is determined whether the air conditioning fresh-starting condition is met, for example, the oxygen concentration is raised to a preset upper limit of the oxygen concentration, and if not, the determination is ended;
步骤S1112，气调保鲜***80启动。In step S1112, the modified atmosphere preservation system 80 is started.
图12是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法中根据氧气浓度进行气调保鲜***80启动判断的示意图。该实施例的冷藏冷冻装置在进行气调保鲜控制时可以执行以下步骤：Fig. 12 is a schematic view showing the start-up determination of the modified atmosphere freshening system 80 based on the oxygen concentration in the controlled atmosphere freshening control method of the refrigerating and freezing apparatus according to an embodiment of the present invention. The refrigerating and freezing apparatus of this embodiment can perform the following steps when performing the air conditioning control:
步骤S1202，初始化氧气浓度传感器87，开始检测气调保鲜子空间271内氧气浓度；Step S1202, initializing the oxygen concentration sensor 87 to start detecting the oxygen concentration in the modified atmosphere sub-space 271;
步骤S1204，判断目前是否处于频繁开门时段内，若是，保持气调保鲜***80关闭，结束判断；Step S1204, determining whether it is currently in the frequent opening time period, and if so, keeping the air conditioning fresh-keeping system 80 closed, ending the judgment;
步骤S1206，冷藏冷冻装置的门体是否被打开，若是，保持气调保鲜***80关闭，结束判断；Step S1206, whether the door body of the refrigerating and freezing device is opened, and if so, keeping the air conditioning system 80 closed, and ending the judgment;
步骤S1208，判断制冷***70是否处于运行状态；Step S1208, determining whether the refrigeration system 70 is in an operating state;
步骤S1210，若制冷***70正在运行，则判断，当前时间是否为用户活动的时段，例如当前是否为6点至22点的时间内，这段时间内无论压缩机处于任何工况，均不允许气调保鲜***80同时启动；Step S1210, if the refrigeration system 70 is running, it is determined whether the current time is a period of user activity, for example, whether it is currently between 6 o'clock and 22 o'clock, during which time the compressor is not allowed to operate under any working condition. The modified atmosphere preservation system 80 is simultaneously activated;
步骤S1212，若制冷***70正在运行，但是当前并非为用户活动的时段，例如处于22点至6点的时段内，判断压缩机频率是否大于设定的频率阈值，该频率阈值可以根据压缩机的运行参数进行设置，例如设定为40赫兹，如果压缩机运行频率超过该频率阈值，仍不允许气调保鲜***80同时启动，保持气调保鲜***80关闭，结束判断；Step S1212, if the refrigeration system 70 is running, but is not currently a period of user activity, for example, in a period of 22 o'clock to 6 o'clock, determining whether the compressor frequency is greater than a set frequency threshold, the frequency threshold may be according to a compressor The operating parameters are set, for example, set to 40 Hz. If the operating frequency of the compressor exceeds the frequency threshold, the modified atmosphere freshening system 80 is not allowed to start at the same time, and the air conditioning system 80 is kept closed, and the judgment is ended;
步骤S1214，在制冷***70没有启动或者压缩机在非为用户活动的时段以低于频率阈值的工况运行时，判断气调保鲜***80是否正在运行；Step S1214, determining whether the modified atmosphere preservation system 80 is running when the refrigeration system 70 is not activated or the compressor is operating at a condition lower than the frequency threshold during a period other than the user's activity;
步骤S1216，若气调保鲜***80正在运行，则判断气调保鲜子空间271的氧气浓度是否低于预设氧气浓度下限，直至气调保鲜子空间271的氧气浓度下降至预设氧气浓度下限；Step S1216, if the modified atmosphere storage system 80 is running, determining whether the oxygen concentration of the modified atmosphere subspace 271 is lower than a preset lower limit of the oxygen concentration until the oxygen concentration of the modified atmosphere subspace 271 is decreased to a lower limit of the preset oxygen concentration;
步骤S1218，关闭气调保鲜***80；Step S1218, closing the modified atmosphere preservation system 80;
步骤S1220，若气调保鲜***80没有运行，则判断气调保鲜子空间271的氧气浓度是否高于预设氧气浓度上限；Step S1220, if the modified atmosphere preservation system 80 is not operated, it is determined whether the oxygen concentration of the modified atmosphere sub-space 271 is higher than a preset oxygen concentration upper limit;
步骤S1222，在气调保鲜子空间271的氧气浓度高于预设氧气浓度上限的情况下，启动气调保鲜***80。In step S1222, the atmosphere fresh-keeping system 80 is activated in the case where the oxygen concentration of the modified atmosphere sub-space 271 is higher than the upper limit of the preset oxygen concentration.
在执行上述流程的过程中，如果出现中断事件(例如断电、用户开启门体)的情况，进行断点标识，优先执行应急中断流程，完成后返回断点标识的步骤继续循环执行。另外上述氧气浓度上限和氧气浓度下限可以根据放入气调保鲜子空间271的食物种类进行设置。在一些可选实施例中，可以预先通过测试确定多类种类食物对应的氧气浓度范围，并且通过用户输入或者自动识别方式确定食物的种类信息，确定对应的氧气浓度范围。从而开机条件可以为气调保鲜子空间271的氧气浓度高于或等于预设的氧气浓度上限，关机条件为气调保鲜子空间271的氧气浓度低于或等于预设的氧气浓度下限。In the process of executing the above process, if an interrupt event occurs (such as power failure, the user opens the door), the breakpoint identification is performed, and the emergency interrupt process is executed preferentially, and the step of returning the breakpoint identification after completion is continued to be executed cyclically. Further, the above upper limit of the oxygen concentration and the lower limit of the oxygen concentration may be set according to the type of food placed in the modified atmosphere sub-space 271. In some optional embodiments, the oxygen concentration range corresponding to the plurality of types of foods may be determined in advance by testing, and the type information of the food is determined by user input or automatic identification to determine a corresponding oxygen concentration range. Therefore, the starting condition may be that the oxygen concentration of the modified air conditioning subspace 271 is higher than or equal to a preset upper limit of the oxygen concentration, and the shutdown condition is that the oxygen concentration of the modified air conditioning subspace 271 is lower than or equal to a preset lower limit of the oxygen concentration.
图13是根据本发明一个实施例的冷藏冷冻装置的气调保鲜控制方法中根据时间进行气调保鲜***80启动判断的示意图。该实施例的冷藏冷冻装置在进行气调保鲜控制时可以执行以下步骤：Fig. 13 is a schematic diagram showing the start-up determination of the modified atmosphere fresh-keeping system 80 according to time in the controlled atmosphere fresh-keeping control method of the refrigerating and freezing apparatus according to an embodiment of the present invention. The refrigerating and freezing apparatus of this embodiment can perform the following steps when performing the air conditioning control:
步骤S1302，初始化，获取当前时间；Step S1302, initializing, obtaining the current time;
步骤S1304，判断目前是否处于频繁开门时段内，若是，保持气调保鲜***80关闭，结束判断；Step S1304, determining whether it is currently in the frequent opening time period, and if so, keeping the air conditioning fresh-keeping system 80 closed, and ending the judgment;
步骤S1306，冷藏冷冻装置的门体是否被打开，若是，保持气调保鲜***80关闭， 结束判断；Step S1306, whether the door body of the refrigerating and freezing device is opened, and if so, keeping the air conditioning system 80 closed, End judgment
步骤S1308，判断制冷***70是否处于运行状态；Step S1308, determining whether the refrigeration system 70 is in an operating state;
步骤S1310，若制冷***70正在运行，则判断当前时间是否为用户活动的时段，例如当前是否为6点至22点的时间内，这段时间内无论压缩机处于任何工况，均不允许气调保鲜***80同时启动；Step S1310, if the refrigeration system 70 is running, it is determined whether the current time is a period of user activity, for example, whether it is currently between 6 o'clock and 22 o'clock, during which time the compressor is not allowed to be in any working condition. The fresh-keeping system 80 is activated at the same time;
步骤S1313，若制冷***70正在运行，但是当前并非为用户活动的时段，例如处于22点至6点的时段内，判断压缩机频率是否大于设定的频率阈值，该频率阈值可以根据压缩机的运行参数进行设置，例如设定为40赫兹，如果压缩机运行频率超过该频率阈值，仍不允许气调保鲜***80同时启动，保持气调保鲜***80关闭，结束判断；Step S1313, if the refrigeration system 70 is running, but is not currently a period of user activity, for example, in a period of 22 o'clock to 6 o'clock, determining whether the compressor frequency is greater than a set frequency threshold, the frequency threshold may be according to a compressor The operating parameters are set, for example, set to 40 Hz. If the operating frequency of the compressor exceeds the frequency threshold, the modified atmosphere freshening system 80 is not allowed to start at the same time, and the air conditioning system 80 is kept closed, and the judgment is ended;
步骤S1314，在制冷***70没有启动或者压缩机在非为用户活动的时段以低于频率阈值的工况运行时，判断气调保鲜***80是否正在运行；Step S1314, determining whether the modified atmosphere preservation system 80 is running when the refrigeration system 70 is not activated or the compressor is operating at a time lower than the frequency threshold for a period other than the user's activity;
步骤S1316，若气调保鲜***80正在运行，则判断气调保鲜时间的运行时间是否已超过第六预设时间；Step S1316, if the modified atmosphere preservation system 80 is running, it is determined whether the running time of the modified atmosphere preservation time has exceeded a sixth preset time;
步骤S1318，关闭气调保鲜***80；Step S1318, closing the modified atmosphere preservation system 80;
步骤S1320，若气调保鲜***80没有运行，则判断距离上次气调保鲜***80完成气调保鲜子空间271的气体调节的时间是否超过第五预设时间；In step S1320, if the modified atmosphere preservation system 80 is not in operation, it is determined whether the time from the last modified atmosphere storage system 80 to complete the gas adjustment of the modified atmosphere subspace 271 exceeds a fifth preset time;
步骤S1322，在判断距离上次气调保鲜***80完成气调保鲜子空间271的气体调节的时间超过第五预设时间的情况下，启动气调保鲜***80；Step S1322, in the case of determining that the time from the last modified atmosphere storage system 80 to complete the gas adjustment of the modified atmosphere sub-space 271 exceeds the fifth predetermined time, start the modified atmosphere preservation system 80;
步骤S1324，判断气调保鲜子空间271是否持续第七预设时间未开启；Step S1324, determining whether the modified air preserving subspace 271 is not turned on for the seventh preset time;
步骤S1326，如果气调保鲜子空间271持续第七预设时间未开启，重新设置第五预设时间和第六预设时间，第七预设时间可以为比较长的一段时间，可以设置为1天或者10个小时，从而在气调保鲜子空间271在较长时间未开启的情况下，适当延长第五预设时间和第六预设时间。In step S1326, if the modified atmosphere subspace 271 is not turned on for the seventh preset time, the fifth preset time and the sixth preset time are reset, and the seventh preset time may be a relatively long period of time, and may be set to 1 Days or 10 hours, so that the fifth preset time and the sixth preset time are appropriately extended in the case where the modified atmosphere sub-space 271 is not turned on for a long time.
上述第五预设时间和第六预设时间可以根据预先对抽气泵40的抽气效率以及气调保鲜子空间271的气体泄漏情况进行测试得出，将抽气泵40完成气调保鲜抽气的时间作为第六预设时间，并且将气调保鲜子空间271内气体自然泄漏至氧气浓度无法满足保鲜要求的时间作为第五预设时间。The fifth preset time and the sixth preset time may be tested according to the pumping efficiency of the air pump 40 and the gas leakage condition of the modified air conditioning subspace 271, and the air pump 40 completes the air conditioning and fresh air pumping. The time is taken as the sixth preset time, and the time in which the gas in the modified atmosphere sub-space 271 naturally leaks to the oxygen concentration cannot meet the freshness requirement is taken as the fifth preset time.
上述流程中的流程的执行顺序可以根据需要进行灵活调整，其中使用的各种条件和参数可以根据冷藏冷冻装置的运行工况、规格等进行调整，以保证保鲜运行标识设置为允许状态的情况下，根据气调保鲜子空间271以及气调保鲜***80的运行情况进行开机条件的判断。The execution sequence of the flow in the above process can be flexibly adjusted according to requirements, and various conditions and parameters used can be adjusted according to the operating conditions and specifications of the refrigerating and freezing device to ensure that the fresh-keeping operation flag is set to the allowable state. According to the operation condition of the modified atmosphere sub-space 271 and the modified atmosphere preservation system 80, the starting condition is judged.
本实施例的冷藏冷冻装置及其气调保鲜控制方法，创造性地提出了采用气调膜(例如富氧膜)组件将密闭的气调保鲜子空间271内空气中的氧气排出该空间，从而在该空间内获得富氮贫氧或者其他以利于食物保鲜的气体氛围。例如富氮贫氧的气体氛围可以通过降低果蔬保存空间内氧气的含量，降低果蔬有氧呼吸的强度，同时保证基础的呼吸作用，防止果蔬进行无氧呼吸，从而达到果蔬长期保鲜的目的。并且本发明对气调保鲜***80的启动控制逻辑进行优化，利用保鲜运行标识设定了允许气调保鲜***80启动的条件，避免了气调保鲜***80与制冷***70互相影响，同时避免了对应用户正常使用冷藏冷冻装置产生影响，提高了用户的使用体验。The refrigerating and freezing apparatus of the present embodiment and the controlled atmosphere freshening control method thereof creatively propose to use a gas regulating membrane (for example, an oxygen-rich membrane) module to discharge oxygen in the air in the sealed modified atmosphere sub-space 271 out of the space, thereby The space is rich in nitrogen-rich oxygen or other gas atmospheres that are good for food preservation. For example, the nitrogen-rich and oxygen-poor gas atmosphere can reduce the oxygen content in the storage space of fruits and vegetables, reduce the aerobic respiration of fruits and vegetables, and at the same time ensure the basic respiration and prevent anaerobic respiration of fruits and vegetables, thereby achieving the purpose of long-term preservation of fruits and vegetables. Moreover, the present invention optimizes the startup control logic of the modified atmosphere freshening system 80, and sets the conditions for allowing the modified atmosphere freshening system 80 to start by using the fresh-keeping operation indicator, thereby avoiding the interaction between the modified atmosphere fresh-keeping system 80 and the refrigeration system 70, and avoiding Corresponding to the user's normal use of the refrigerating and freezing device, the user's experience is improved.
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。 In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims (10)

  1. 一种冷藏冷冻装置的气调保鲜控制方法，其中所述冷藏冷冻装置包括限定有储物空间的箱体、气调保鲜***、制冷***，其中，所述储物空间内形成有密闭的气调保鲜子空间，所述气调保鲜***包括气调膜组件以及抽气泵，所述抽气泵配置成使所述气调保鲜子空间的气体经过所述气调膜组件渗透，以在所述储物空间的气调保鲜子空间内形成利于食物保鲜的气体氛围，所述制冷***配置成向所述储物空间提供冷量，其特征在于，并且所述保鲜控制方法包括：A controlled atmosphere freshening control method for a refrigerating and freezing device, wherein the refrigerating and freezing device comprises a tank body defining a storage space, a modified atmosphere preserving system, and a refrigeration system, wherein a sealed atmosphere is formed in the storage space a fresh-keeping sub-space, the modified atmosphere preservation system comprising a gas regulating membrane module and an air pump configured to permeate gas of the modified atmosphere sub-space through the gas regulating membrane module to be in the storage A gas atmosphere for food preservation is formed in the modified atmosphere subspace of the space, the refrigeration system is configured to provide a cooling capacity to the storage space, and the preservation control method comprises:
    获取所述气调保鲜***的保鲜运行标识，所述保鲜运行标识根据所述冷藏冷冻装置的运行事件进行设置，并且指示出是否允许所述气调保鲜***运行，所述冷藏冷冻装置的运行事件至少包括：所述冷藏冷冻装置的运行时刻、所述制冷***的启停事件、所述储物空间被开闭的事件、所述气调保鲜子空间被开闭的事件；Obtaining a fresh-keeping operation identifier of the modified atmosphere storage system, the fresh-keeping operation identifier is set according to an operation event of the refrigeration and freezing device, and indicating whether the operation of the modified atmosphere storage system is allowed, and an operation event of the refrigeration and refrigeration device The method includes at least: an operation time of the refrigerating and freezing device, an opening and closing event of the refrigeration system, an event that the storage space is opened and closed, and an event that the air-conditioning preservative subspace is opened and closed;
    在所述保鲜运行标识为允许所述气调保鲜***运行的情况下，判断所述气调保鲜***是否满足预设开机条件，并在满足所述开机条件的情况下，启动所述气调保鲜***以对所述气调保鲜子空间的气体进行调节，直至所述气调保鲜***达到预设的关机条件。And determining, in the case that the fresh-keeping operation indicator is to allow the operation of the modified atmosphere fresh-keeping system, whether the modified atmosphere fresh-keeping system satisfies a preset power-on condition, and starting the air-conditioning preservation condition if the power-on condition is met The system adjusts the gas of the modified atmosphere sub-space until the modified atmosphere storage system reaches a preset shutdown condition.
  2. 根据权利要求1所述的气调保鲜控制方法，其特征在于，根据所述冷藏冷冻装置的运行事件设置所述保鲜运行标识的步骤包括：The controlled atmosphere fresh-keeping control method according to claim 1, wherein the step of setting the fresh-keeping running mark according to an operation event of the refrigerating and freezing device comprises:
    在所述制冷***启动后，将所述保鲜运行标识设置为禁止状态，并在所述制冷***被关闭的第一预设时间后，将所述保鲜运行标识设置为允许状态。After the refrigeration system is started, the fresh-keeping running flag is set to a prohibited state, and after the first preset time when the cooling system is turned off, the fresh-keeping running identifier is set to an allowable state.
  3. 根据权利要求1所述的气调保鲜控制方法，其特征在于，根据所述冷藏冷冻装置的运行事件设置所述保鲜运行标识的步骤包括：The controlled atmosphere fresh-keeping control method according to claim 1, wherein the step of setting the fresh-keeping running mark according to an operation event of the refrigerating and freezing device comprises:
    在进入所述冷藏冷冻装置的频繁开门时段后，将所述保鲜运行标识设置为禁止状态，并且After entering the frequent opening period of the refrigerating and freezing device, setting the freshness running flag to a prohibited state, and
    在等待所述频繁开门时段经过后，将所述保鲜运行标识设置为允许状态。The freshness running flag is set to an allowable state after waiting for the frequent opening time period to elapse.
  4. 根据权利要求1所述的气调保鲜控制方法，其特征在于，根据所述冷藏冷冻装置的运行事件设置所述保鲜运行标识的步骤包括：The controlled atmosphere fresh-keeping control method according to claim 1, wherein the step of setting the fresh-keeping running mark according to an operation event of the refrigerating and freezing device comprises:
    在所述储物空间被打开后，将所述保鲜运行标识设置为禁止状态；以及Setting the freshness running flag to a prohibited state after the storage space is opened;
    在所述储物空间被关闭的第二预设时间后并且所述气调保鲜子空间持续关闭达到第三预设时间的情况下，将所述保鲜运行标识设置为允许状态。The freshness running flag is set to an allowable state after a second preset time in which the storage space is closed and the modified air conditioning subspace is continuously closed for a third preset time.
  5. 根据权利要求4所述的气调保鲜控制方法，其特征在于：The controlled atmosphere freshening control method according to claim 4, wherein:
    在所述储物空间被关闭后，如果所述气调保鲜子空间保持开启状态的时间超过第四预设时间，输出密封报警提示信息。After the storage space is closed, if the time when the modified atmosphere keeping subspace remains open for more than the fourth preset time, the sealed alarm prompt information is output.
  6. 根据权利要求1所述的气调保鲜控制方法，其特征在于：The controlled atmosphere freshening control method according to claim 1, wherein:
    所述开机条件包括：距离上次所述气调保鲜***完成所述气调保鲜子空间的气体调节的时间超过第五预设时间，或者所述气调保鲜子空间的氧气浓度高于或等于预设的氧气浓度上限；The power-on condition includes: a time from the last time the gas-conditioning preservation system completes the gas adjustment of the modified atmosphere sub-space exceeds a fifth preset time, or the oxygen concentration of the modified-air preservation sub-space is higher than or equal to Preset oxygen concentration upper limit;
    所述关机条件包括：所述气调保鲜***持续运行的时间达到第六预设时间，或者所述气调保鲜子空间的氧气浓度低于或等于预设的氧气浓度下限。The shutdown condition includes: the continuous operation time of the modified atmosphere preservation system reaches a sixth preset time, or the oxygen concentration of the modified atmosphere storage subspace is lower than or equal to a preset lower limit of the oxygen concentration.
  7. 根据权利要求1所述的气调保鲜控制方法，其特征在于，在启动所述气调保鲜***以对所述气调保鲜子空间的气体进行调节的步骤之后还包括：The modified atmosphere fresh-keeping control method according to claim 1, wherein after the step of starting the modified atmosphere preservation system to adjust the gas of the modified atmosphere sub-space, the method further comprises:
    持续监测所述气调保鲜***的保鲜运行标识，若所述保鲜运行标识被设置为禁止状态，关闭所述气调保鲜***。The fresh-keeping operation indicator of the modified atmosphere fresh-keeping system is continuously monitored, and if the fresh-keeping operation mark is set to a prohibited state, the modified atmosphere preservation system is closed.
  8. 一种冷藏冷冻装置，其特征在于，包括： A refrigerating and freezing device, comprising:
    箱体，其内部限定有储物空间，所述储物空间内形成有密闭的气调保鲜子空间；a tank body having a storage space defined therein, and a sealed atmosphere-preserving sub-space is formed in the storage space;
    气调保鲜***，其包括气调膜组件以及抽气泵，所述抽气泵配置成使所述气调保鲜子空间的气体经过所述气调膜组件渗透，以在所述储物空间的气调保鲜子空间内形成利于食物保鲜的气体氛围；a modified atmosphere preservation system comprising a gas regulating membrane module and an air pump configured to infiltrate a gas of the modified atmosphere sub-space through the gas regulating membrane module to adjust a gas atmosphere in the storage space Forming a gas atmosphere that is conducive to food preservation in the fresh-keeping sub-space;
    制冷***，配置成向所述储物空间提供冷量；a refrigeration system configured to provide a cooling capacity to the storage space;
    控制器，用于控制所述气调保鲜***以及所述制冷***的启停，并且还配置成：a controller for controlling the modified atmosphere preservation system and the start and stop of the refrigeration system, and is further configured to:
    获取所述气调保鲜***的保鲜运行标识，所述保鲜运行标识根据所述冷藏冷冻装置的运行事件进行设置，并且指示出是否允许所述气调保鲜***运行，所述冷藏冷冻装置的运行事件至少包括：所述冷藏冷冻装置的运行时刻、所述制冷***的启停事件、所述储物空间被开闭的事件、所述气调保鲜子空间被开闭的事件；Obtaining a fresh-keeping operation identifier of the modified atmosphere storage system, the fresh-keeping operation identifier is set according to an operation event of the refrigeration and freezing device, and indicating whether the operation of the modified atmosphere storage system is allowed, and an operation event of the refrigeration and refrigeration device The method includes at least: an operation time of the refrigerating and freezing device, an opening and closing event of the refrigeration system, an event that the storage space is opened and closed, and an event that the air-conditioning preservative subspace is opened and closed;
    在所述保鲜运行标识为允许所述气调保鲜***运行的情况下，判断所述气调保鲜***是否满足预设开机条件，并在满足所述开机条件的情况下，启动所述气调保鲜***以对所述气调保鲜子空间的气体进行调节，直至所述气调保鲜***达到预设的关机条件。And determining, in the case that the fresh-keeping operation indicator is to allow the operation of the modified atmosphere fresh-keeping system, whether the modified atmosphere fresh-keeping system satisfies a preset power-on condition, and starting the air-conditioning preservation condition if the power-on condition is met The system adjusts the gas of the modified atmosphere sub-space until the modified atmosphere storage system reaches a preset shutdown condition.
  9. 根据权利要求8所述的冷藏冷冻装置，其特征在于，所述控制器还配置成：The refrigerating and freezing apparatus according to claim 8, wherein the controller is further configured to:
    在所述制冷***启动后，将所述保鲜运行标识设置为禁止状态，并在所述制冷***被关闭的第一预设时间后，将所述保鲜运行标识设置为允许状态；After the cooling system is started, setting the fresh-keeping running identifier to a prohibited state, and setting the fresh-keeping running identifier to an allowable state after the first preset time that the cooling system is turned off;
    在进入所述冷藏冷冻装置的频繁开门时段后，将所述保鲜运行标识设置为禁止状态，并且在等待所述频繁开门时段经过后，将所述保鲜运行标识设置为允许状态；After entering the frequent opening time period of the refrigerating and freezing device, setting the fresh-keeping running flag to a prohibited state, and setting the fresh-keeping running flag to an allowable state after waiting for the frequent opening time period to elapse;
    在所述储物空间被打开后，将所述保鲜运行标识设置为禁止状态，并且在所述储物空间被关闭的第二预设时间后并且所述气调保鲜子空间持续关闭达到第三预设时间的情况下，将所述保鲜运行标识设置为允许状态。After the storage space is opened, the fresh-keeping running indicator is set to a prohibited state, and after the second preset time that the storage space is closed, and the modified fresh-keeping sub-space is continuously closed to reach a third state In the case of a preset time, the freshness running flag is set to an allowable state.
  10. 根据权利要求8所述的冷藏冷冻装置，其特征在于，所述控制器还配置成：The refrigerating and freezing apparatus according to claim 8, wherein the controller is further configured to:
    持续监测所述气调保鲜***的保鲜运行标识，若所述保鲜运行标识被设置为禁止状态，关闭所述启动所述气调保鲜***。 The fresh-keeping operation indicator of the modified atmosphere fresh-keeping system is continuously monitored, and if the fresh-keeping operation mark is set to a prohibited state, the activation of the modified atmosphere preservation system is turned off.
PCT/CN2017/115137 2016-12-09 2017-12-08 Refrigerating and freezing device and air-regulating fresh-keeping control method therefor WO2018103724A1 (en)

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