WO2016082536A1 - Appareil de stockage à sec et son procédé de ventilation - Google Patents

Appareil de stockage à sec et son procédé de ventilation Download PDF

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Publication number
WO2016082536A1
WO2016082536A1 PCT/CN2015/081875 CN2015081875W WO2016082536A1 WO 2016082536 A1 WO2016082536 A1 WO 2016082536A1 CN 2015081875 W CN2015081875 W CN 2015081875W WO 2016082536 A1 WO2016082536 A1 WO 2016082536A1
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WIPO (PCT)
Prior art keywords
drying chamber
temperature
air
storage device
dry storage
Prior art date
Application number
PCT/CN2015/081875
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English (en)
Chinese (zh)
Inventor
赵发
杨发林
张奎
徐志国
Original Assignee
青岛海尔股份有限公司
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Publication of WO2016082536A1 publication Critical patent/WO2016082536A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • 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
    • 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
    • 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
    • F25D29/005—Mounting of control devices

Definitions

  • the invention relates to the technical field of refrigerators, in particular to a dry storage device and a method for changing the same.
  • a compartment for increasing the humidity of the refrigerator based on the refrigeration function of the refrigerator has appeared, for example, a separate closed space is formed in the refrigerator compartment of the refrigerator as a drying chamber, and when the drying chamber is closed, the refrigerator compartment is closed. Air with a relatively high relative humidity cannot enter the drying chamber to maintain the drying of the dry indoor air.
  • the drying chamber constructed in the prior art forms a dry environment with a relatively low relative humidity in the closed space by blowing a cold air having a relatively low temperature into the drying chamber and then utilizing the principle of relative humidity changing with temperature.
  • the traditional air supply control does not take into account the moisture contained in the articles placed in the drying chamber and the sealing effect of the drying chamber.
  • long-time air supply causes wasted electric energy or the air supply time is too short to fully replace the humidity in the drying chamber.
  • the air causes a problem of poor drying.
  • an effective solution has not been proposed in the prior art.
  • the present invention has been made in order to provide a method of changing the air of a dry storage device and a corresponding dry storage device that overcomes the above problems or at least partially solves the above problems.
  • a further object of the invention is to improve the drying effect of the dry storage device.
  • Another further object of the invention is to reduce the electrical energy consumed by the dry storage device.
  • a method of changing the air of a dry storage device includes a casing defining a drying chamber, and the air outlet is disposed on the casing to pass through the air outlet The gas is supplied to the drying chamber.
  • the method for changing the air of the dry storage device comprises: obtaining a start signal for triggering the change of the air in the dry storage device; opening the air supply port according to the start signal to supply the gas cooled by the cold source to the drying chamber; measuring the temperature in the drying chamber, and After the temperature is lower than the first preset temperature value, the drying chamber air outlet is closed to raise the temperature of the drying chamber in a sealed state.
  • the activation signal includes: a temperature overrun signal in which the temperature in the drying chamber is higher than the second preset temperature value, wherein the second preset temperature is higher than the first preset temperature.
  • the activation signal includes: a humidity overrun signal whose relative humidity value in the drying chamber is higher than a preset humidity value.
  • the start signal includes: a timing signal that reaches a preset interval time after the last wind change is completed.
  • the activation signal includes a status signal that the housing of the dry storage device changes from an open state to a closed state.
  • the opening of the drying chamber air outlet according to the activation signal comprises: opening the air supply opening promptly or delaying after obtaining the activation signal.
  • the first preset temperature value is preset according to the temperature of the cooling chamber cold source to ensure that the air cooled by the cold source is sufficient to replace the original air in the drying chamber when the air outlet is closed.
  • a dry storage device includes: a casing defining a drying chamber, the casing is provided with a blowing port for supplying gas to the drying chamber through the air blowing port, and the temperature measuring module is configured to measure the temperature in the drying chamber, and the air blowing port is configured to : opening after starting the activation signal for triggering the air change of the dry storage device, supplying the gas cooled by the cold source to the drying chamber, and closing after the temperature is lower than the first preset temperature value, so that the drying chamber is in a sealed state Warm up.
  • the dry storage device further includes any one or more of the following trigger modules: a temperature triggering module configured to generate a start signal when the temperature measured by the temperature measuring module is higher than the second preset temperature value, where The second preset temperature is higher than the first preset temperature of the drying chamber; the timing triggering module is configured to generate a start signal when the time after the last wind change is completed reaches a preset interval time; the humidity trigger module is configured to measure the dry indoor Relative humidity, and generating a drying chamber start signal when the measured relative humidity value is higher than the preset humidity value; the opening and closing trigger module is configured to detect the opening and closing state of the housing, and close the housing after detecting the picking and placing object After the start signal is generated.
  • a temperature triggering module configured to generate a start signal when the temperature measured by the temperature measuring module is higher than the second preset temperature value, where The second preset temperature is higher than the first preset temperature of the drying chamber
  • the timing triggering module is configured to generate a start signal when the time after the last wind change is completed
  • the dry storage device is disposed in a refrigerating chamber of the refrigerator, and the cold source includes a refrigerating evaporator or a freezing chamber of the refrigerator.
  • the air exchange method of the dry storage device of the invention opens the air change according to the start signal for triggering the air change of the dry storage device, and controls the air change according to the temperature control, thereby ensuring that the sent cold air can completely replace the humid air in the drying room. Therefore, after the end of the wind change, the relative humidity in the drying chamber can be ensured to meet the requirement of storing dry goods for a long time, and the long-time air supply can be avoided, and the electric energy used for cooling and air supply is consumed, thereby effectively preventing mildew and moisture regain of food.
  • the air exchange method of the dry storage device of the present invention flexibly adopts the temperature, humidity, time, and drying chamber opening and closing signals as the start signal for triggering the air change, which is favorable for the maintenance of the dry environment and the long-term preservation of the dry goods.
  • the triggering temperature for controlling the opening and closing of the air outlet may be preset according to the temperature of the cold room of the drying chamber and the temperature of the refrigerator environment where the cold source is located. In order to ensure that the air cooled by the cold source is fully replaced when the air supply port is closed, the control is more precise and meets the storage requirements of the dry storage device.
  • FIG. 1 is a schematic view showing the principle of drying of a dry storage device according to an embodiment of the present invention
  • FIG. 2 is a schematic front view of an air-cooled refrigerator in which a dry storage device is located according to an embodiment of the present invention
  • Figure 3 is a schematic cross-sectional view taken along line A-A of Figure 2;
  • Figure 4 is a schematic partial enlarged view of the portion C shown in Figure 3;
  • FIG. 5 is a control block diagram of a dry storage device in accordance with one embodiment of the present invention.
  • FIG. 6 is a schematic air duct system diagram of a drying chamber air supply damper of an air-cooled refrigerator according to an embodiment of the present invention
  • Figure 7 is a schematic air duct system diagram of a drying chamber air supply damper of an air-cooled refrigerator according to an embodiment of the present invention
  • Figure 8 is a schematic air duct system diagram taken along line B-B of Figure 2;
  • FIG. 9 is a flow chart of a method of changing air of a dry storage device according to an embodiment of the present invention.
  • Figure 10 is an alternate flow diagram of a method of changing the air of a dry storage device in accordance with one embodiment of the present invention.
  • the embodiment provides a dry storage device, which is arranged in a refrigerator, especially an air-cooled refrigerator, and provides a good storage environment for dry goods such as alfalfa, tea, mushrooms, longan, and Cordyceps sinensis.
  • the drying principle is that the gas cooled by the cold source is sent to a relatively high temperature closed environment, and as the low temperature gas gradually heats up in the closed space, the relative humidity thereof is lowered, and the drying effect is effectively formed.
  • FIG. 1 is a schematic view showing the principle of drying of a dry storage device according to an embodiment of the present invention.
  • FIG. 1 shows the relationship between various parameters of wet air by a graph, with the temperature as the ordinate and the moisture content as the abscissa.
  • the relative humidity line cluster is shown, and under a certain pressure value, as the temperature increases, the moisture content in the humid air increases accordingly.
  • the moisture content of the air (generally referred to as absolute humidity) is constant with temperature rise, that is, in a closed environment, the moisture content of the air does not change with temperature rise.
  • the two points a and b in Figure 1 are on a vertical line, and point a (-18 ° C, 85% RH) is the point of low temperature air in the enclosed space after the end of ventilation, point b (5 ° C, 15% RH) is the air state point of the enclosed space after the gas temperature rises. It can be seen that the temperature of the closed environment rises from -18 °C to 5 °C, and the relative humidity of the closed environment is reduced from 85% RH to 15% RH, thereby obtaining an increase in the air temperature in a closed environment, which can effectively reduce the relative humidity. .
  • the closed environment is filled with a gas having a temperature of -18 ° C and a relative humidity of 85% RH, the temperature rises, and when the temperature rises to 5 ° C, the theoretical relative humidity is lowered to 15% RH.
  • -18 ° C can generally be the temperature of the freezer or evaporator in the refrigerator
  • 5 ° C can generally be the temperature of the refrigerator freezer.
  • FIG. 2 is a schematic front view of an air-cooled refrigerator in which a dry storage device is included, which includes a refrigerating compartment 20 and a freezing compartment 10, in accordance with one embodiment of the present invention.
  • a refrigerating compartment door 24 and a freezing compartment door 14 are provided at the front opening of the refrigerating compartment 20 and the freezing compartment 10 for opening or closing the refrigerating compartment 20 and the freezing compartment 10, respectively.
  • the refrigerating compartment 20 may be disposed laterally adjacent to the freezing compartment 10, or the refrigerating compartment 20 may be disposed laterally of the freezing compartment 10.
  • a partition 12 is provided between the refrigerating compartment 20 and the freezing compartment 10.
  • the air-cooled refrigerator 100 of the embodiment of the present invention may further include a refrigeration cycle system and a duct 60 (refer to FIG. 8).
  • the refrigeration cycle system may include, for example, a compressor (not shown), a condenser (not shown), a throttle element (not shown), and an evaporator. 50 (refer to Figure 8).
  • the air-cooled refrigerator 100 may also be provided with a blower 40 (refer to FIG. 8) located in the air duct 60 for blowing the airflow cooled and dehumidified by the evaporator 50 to the refrigerating compartment 20 and/or the freezing compartment 10.
  • the air-cooled refrigerator 100 may further include a dry storage device 30 having a separate enclosed space, the dry storage device 30 defining an enclosed space (hereinafter referred to as a drying chamber), and the dry storage device 30 being disposed in the refrigerating chamber 20 In the interior space.
  • a drying chamber an enclosed space
  • the dry storage device 30 can be preferably disposed in the space in the lower portion of the refrigerating chamber 20, that is, the height position at which the top plate of the drying storage device 30 (see the top plate 322 in FIG. 4) is located in the refrigerating chamber 20. It does not exceed the lower third or half of the entire height of the internal space of the refrigerating compartment 20.
  • the dry storage device 30 can be constructed from a drawer-type sealed container.
  • the dry storage device 30 can include a drawer body 31 and a female housing 32 (as will be understood by those skilled in the art, the drawer body 31 and the female housing 32 can collectively form a housing for the drying chamber that defines the drying chamber) .
  • the drawer body 31 may have a cavity for receiving an item to be stored and having a top opening.
  • the female housing 32 can have a backing plate 321 and a top plate 322, a bottom plate 323, and two opposing lateral side plates joined to the backing plate 321 at respective rear ends to form a cavity that can pullably receive the drawer body 31.
  • the front end of the female housing 32 is open, and the drawer body 31 can be pulled out of the female housing 32 in the front-rear direction of the refrigerating chamber 20 and housed in the female housing 32 (in the female housing 32).
  • the drawer body 31 may be provided with a drawer door 311 for pulling the drawer body 31, and a sealing strip 37 is disposed at the edge of the drawer door 311.
  • the sealing strip 37 on the drawer door 311 can be coupled to the top plate 322 and the bottom plate of the female housing 32.
  • the front ends of the two opposite lateral side plates are sealingly fitted or sealed at the front end opening of the female housing 32 to substantially seal the dry storage device 30.
  • slides may be provided on the two lateral walls of the drawer body 31, and correspondingly the slide rails are mounted on the inner surfaces of the two opposite lateral side panels of the female housing 32 such that the drawer body 31 It is slidably mounted to the socket housing 32.
  • the bottom plate 323 of the female housing 32 of the dry storage device 30 is disposed adjacent the bottom surface of the interior space of the refrigerating chamber 20. That is, the bottom of the female housing 32 of the dry storage device 30 The plate 323 is disposed close to the bottom surface of the internal space of the refrigerating chamber 20 with a gap therebetween, that is, a gap exists between the bottom plate 323 and the bottom surface of the internal space of the refrigerating chamber 20. In some embodiments, the bottom plate 323 of the female housing 32 of the dry storage device 30 rests on the bottom surface, or the dry storage device 30 is disposed at the bottom of the interior space of the refrigerating chamber 20.
  • the dry storage device 30 includes a casing defining a drying chamber on which a blower port 33 is provided to supply gas to the drying chamber through the air blowing port 33. That is, the dry storage device 30 includes a housing for defining a drying chamber and having a blower port 33.
  • the air supply port 33 is used for the cooling airflow to flow into the drying chamber.
  • the drying chamber and the freezing chamber 10 are controllably communicated through the air blowing port 33 to controllably supply the cooling airflow inside the freezing chamber 10 to the drying chamber via the air blowing port 33.
  • the air supply opening 33 may be disposed on a lateral side panel of the female housing 32 adjacent to the freezing compartment 10.
  • an opening 16 (refer to FIG. 8) is disposed on the side wall of the freezing compartment 10, and a venting passage 13 is provided on the partition 12 between the drying storage device 30 and the freezing compartment 10, and the air blowing port 33 passes through the venting passage 13 and The openings 16 are connected.
  • the cooling airflow at the lower portion of the freezing compartment 10 can be controlled to be supplied to the drying chamber via the opening 16, the venting passage 13, and the air blowing port 33.
  • the lateral side plate of the female box 32 adjacent to the freezing chamber 10 can be formed by the lower portion of the partition 12, and the air blowing opening 33 is opened at the lower portion of the partition 12, and the air blowing port 33 can be located at the ventilation.
  • the end of the passage 13 is adjacent to the drying chamber.
  • the dry storage device 30 of the embodiment of the present invention needs to open the air supply port 33 according to the activation signal to dry the air, and the dry storage device 30 has a certain sealing effect. The indoor air is replaced.
  • the dry storage device 30 further includes a temperature measurement module 70 configured to measure the temperature within the drying chamber.
  • the air supply port 33 is configured to be turned on after the activation signal for triggering the air change of the dry storage device 30 is acquired, to supply the gas cooled by the cold source to the drying chamber, and to be turned off after the temperature in the drying chamber is lower than the first preset temperature value.
  • the first preset temperature value may be preset according to the temperature of the cooling chamber cold source to ensure that the air cooled by the cold source when the air supply port is closed can completely replace the original air in the drying chamber.
  • the first preset temperature can be set to -18 degrees Celsius, that is, after the temperature in the drying chamber drops to -18 degrees Celsius, the air outlet is closed. 33. After the sealed drying chamber is gradually heated to the ambient temperature of the refrigerating chamber, the drying environment is required.
  • the temperature measuring module 70 may include at least one temperature sensor disposed in the drying chamber to ensure that the temperature in the entire drying chamber reaches below the first preset temperature.
  • the dry storage device 30 further includes any one or more of the following trigger modules: a temperature triggering module 72, a timing triggering module 74, a humidity triggering module 76, and an opening and closing triggering module 78.
  • the above multiple trigger modules can perform air supply opening control according to different usage parameters.
  • the temperature triggering module 72 is configured to generate a start signal when the temperature measured by the temperature measuring module 70 is higher than the second preset temperature value, wherein the second preset temperature is higher than the first preset temperature of the drying chamber.
  • the second preset temperature may be set to the temperature of the refrigerator environment in which the dry storage device 30 of the present embodiment is located, for example, the refrigerating temperature of the refrigerating chamber 20 (for example, 5 degrees Celsius) as the second preset temperature.
  • the air blowing port 33 can be opened immediately or after a delay period, and the cooling air is again sent to the drying chamber.
  • the air blowing port 33 is opened after a certain time delay. That is, the temperature in the drying chamber is maintained at the second preset temperature for a period of time, on the one hand, the environment of the drying chamber is more stable, and on the other hand, the false control caused by transient temperature fluctuations is prevented.
  • the timing triggering module 74 is configured to generate a start signal when the time after the last wind change is completed reaches a preset interval time, that is, to start the air change once every predetermined period (for example, 12 hours).
  • the time of the specific interval may be determined according to the pre-test of the drying chamber, so that the humidity of the drying chamber is kept below the limit value in a state where the drying chamber is in a normal placed article.
  • the humidity trigger module 76 is configured to measure the relative humidity within the drying chamber and generate an activation signal when the measured relative humidity value is above a preset humidity value.
  • the humidity trigger module 74 includes a humidity sensor disposed within the drying chamber to activate the air vent 33 after the humidity in the drying chamber has exceeded an excess (eg, above 50% RH).
  • a preferred mode is that the humidity trigger module 74 can also be provided with a temperature sensor to operate in conjunction with the humidity sensor.
  • the opening of the air blowing port 33 is performed according to the measurement data of the humidity sensor, on the one hand, the humidity measured by the humidity sensor is prevented from being affected by the temperature, and on the other hand, It is also avoided that the humidity sensor sends an erroneous activation signal when the dry storage device 30 is in the open state or has been in the air supply state.
  • a normal storage temperature for example, 5 degrees Celsius
  • the opening and closing triggering module 78 is configured to detect an open/close state of the housing, and generate an activation signal after detecting that the housing is changed from an open state to a closed state. It should be understood by those skilled in the art that when the drawer body 31 pushes the female housing 32, that is, the drawer door 311 of the drawer body 31 closes or covers the female housing When the front end of the opening 32 is open, the housing of the dry storage device 30 can be considered to be in a closed state; when the drawer body 31 is pulled out of the female housing 32, the housing of the dry storage device 30 can be considered to be in an open state.
  • the start-up air supply takes into consideration that the user enters the casing after the pick-and-place article opens, and the outside air enters the drying chamber, causing the humidity of the drying chamber to rise, so that each time the user turns on the drying chamber, the air is blown once to ensure the dry environment of the drying room. .
  • the dry storage device 30 may include any one of the above trigger modules to control the air supply port 33.
  • the dry storage device 30 may also include a plurality of trigger modules to simultaneously control the air supply port 33.
  • the dry storage device 30 can include an open and close trigger module 78, a humidity trigger module 72, a timing trigger module 74, and a temperature trigger module 76.
  • the opening and closing triggering module 78 works; if the state is normally stored, the humidity triggering module 72, the timing triggering module 74, and the temperature triggering module 76 cooperate to perform the timing change; if the temperature or humidity exceeds the limit In the case, the wind can also be started. After the start signal is acquired, the air supply port 33 is opened immediately or delayed.
  • the above-described dry storage device 30 is disposed in the refrigerating compartment 20 of the refrigerator, and the cold source includes a refrigerating evaporator or a freezing compartment of the refrigerator.
  • FIG. 6 is a schematic air duct system diagram of a drying chamber air supply damper of an air-cooled refrigerator according to an embodiment of the present invention
  • FIG. 7 is a diagram showing a drying chamber air supply damper of an air-cooled refrigerator according to an embodiment of the present invention.
  • a schematic air duct system diagram, FIG. 8 is a schematic air duct system diagram taken along section line BB of FIG. 2.
  • a blower damper 34 may be provided at the air supply port 33 to controllably introduce a cooling airflow into the drying chamber.
  • the blower damper 34 can also be disposed in the venting passage 13.
  • the blower damper 34 can be, for example, an electric damper.
  • the blower damper 34 when the drying chamber does not need to supply air, the blower damper 34 is closed, and the cooling airflow inside the freezing compartment 10 does not flow to the drying chamber, and the airflow direction in the refrigerator is shown in FIG. 6 (the solid arrow in the figure indicates the blowing direction) The dotted arrow indicates the return air direction); when the drying chamber needs to supply air, the air supply damper 34 is opened, and part of the cooling airflow inside the freezing chamber 10 flows to the drying chamber, and the air flow in the refrigerator is shown in Figs. 7 and 8.
  • the blower damper 34 may also preferably be configured to adjust the opening degree of the air supply port. Specifically, when the drying chamber requires a large amount of air, the air supply damper 34 increases the opening degree of the air supply opening. When the drying room requires a small amount of air, the air supply damper 34 adjusts the opening degree of the air supply opening.
  • the above air supply time is determined according to the volume of the drying chamber and the air supply volume of the air supply port, so as to ensure that the air cooled by the cold source can completely replace the original air in the drying chamber.
  • the air supply port 33 of the dry storage device 30 can also directly communicate with the air duct 60, so that the airflow cooled and dehumidified by the evaporator 50 flows directly into the drying chamber through the air supply port 33 (without freezing Room 10 or refrigerator compartment 20).
  • the air-cooled refrigerator 100 has two refrigerating evaporators and a refrigerating evaporator that respectively cool down the refrigerating compartment 20 and the freezing compartment 10, the airflow after dehumidifying by the refrigerating evaporator can be passed through the air blowing port 33. Directly flow into the drying chamber (no need to pass through the refrigerating chamber 20).
  • the dry storage device 30 also has a return air port 35 for the gas in the drying chamber to flow out of the dry storage device 30.
  • the return air vent 35 is disposed on the backing plate 321 of the dry storage device 30. The airflow flowing out of the return air port 35 of the dry storage device 30 can flow into the refrigerating chamber 20 and circulate back into the air duct 60 as the return air of the refrigerating chamber 20 returns.
  • a return damper 36 for closing or opening the return air vent 35 may be provided at the return air vent 35.
  • the return damper 36 can be, for example, a one-way damper, that is, it can only ventilate outward from the drying chamber without allowing the wind outside the drying chamber to flow into the drying chamber.
  • the return damper 36 may be a one-way piece.
  • the blower damper 34 of the air supply port 33 When the blower damper 34 of the air supply port 33 is opened, the pressure inside the drying chamber may rise due to the flow of air into the drying chamber. Under the action of the pressure, the one-way piece of the return air port 35 of the dry storage device 30 is opened outward, and the air flow in the drying chamber flows out through the return air port 35, and the moisture in the drying chamber is taken away. In order to ensure that the moisture in the drying chamber is sufficiently taken away, the blower damper 34 may be continuously opened until the temperature in the drying chamber is lower than the first preset temperature. Then, the air supply damper 34 is closed.
  • the pressure in the drying chamber is lowered, and the one-way piece of the air return port 35 of the dry storage device 30 is automatically closed by its own weight. At this time, a low-temperature closed space is formed in the drying chamber. That is, the cooling gas in the drying chamber cannot flow out of the drying chamber from the return air port 35; the gas having a relatively high relative humidity outside the drying chamber cannot enter the drying chamber.
  • the air in the drying chamber exchanges heat with the external environment for heat exchange, so that the temperature rises, thereby reducing the relative humidity of the air in the drying chamber.
  • the return damper 36 may also be an electronically controlled damper that automatically opens and closes in synchronization with the blower damper 34 at the air supply port 33.
  • Table 1 shows the comparison data of the refrigerating compartment and the dry room temperature humidity according to an embodiment of the present invention. It can be seen from Table 1 that the relative humidity of the drying chamber is about 16% lower than that of the refrigerating chamber 20. If the refrigerating chamber 20 is placed with a large amount of vegetables, the relative humidity in the refrigerating chamber 20 can reach 65%. If put The dry goods are placed in the refrigerating room 20, and the dry goods are very easy to regain moisture. The long time is prone to mold, which causes the dry goods to deteriorate.
  • the drying chamber is a relatively closed space, the dry goods placed in the drying chamber are less affected by the humidity of the refrigerating chamber 20, and the relative humidity of the drying chamber can be ensured to be less than 40%. Therefore, the dry goods will not be regained for a long time and will not deteriorate.
  • Drying room (°C) Drying room (%RH) Cold storage room (°C) Cold storage room (%RH) average value 7.0 26.0 5.7 43.3
  • the embodiment of the present invention further provides a method for changing the air of the dry storage device, which is suitable for controlling any of the dry storage devices 30 in the above embodiments to ensure that the drying chamber defined by the dry storage device 30 has good performance. Dry storage environment.
  • FIG. 9 is a flow chart of a method of changing air of a dry storage device according to an embodiment of the present invention, the method of changing air of the dry storage device includes:
  • Step S902 acquiring an activation signal for triggering the air change of the dry storage device
  • Step S904 opening the air supply port according to the activation signal to supply the drying chamber with the gas cooled by the cold source;
  • Step S906 measuring the temperature in the drying chamber, and determining whether the measured temperature is lower than the first preset temperature
  • Step S908 after the measured temperature is lower than the first preset temperature value, the air supply port is closed to heat the drying chamber in a sealed state.
  • the air supply time in the above method that is, the time from the opening to the closing of the air supply opening may be determined according to the volume of the drying chamber and the air supply volume of the air supply opening, so as to ensure that the air cooled by the cold source can completely replace the original air in the drying room. And try to avoid the waste of electricity and cold source temperature caused by excessive air supply.
  • the above start signal may include any of the following:
  • a status signal of the housing of the dry storage device changing from an open state to a closed state.
  • any one of the above activation signals may be selected to control the air supply port 33; in other embodiments of the present invention, multiple activation signals may also be selected for simultaneous transmission.
  • the tuyere 33 is controlled.
  • Figure 10 is an illustration of a method of changing the air of a dry storage device in accordance with one embodiment of the present invention. flow chart.
  • Step S1002 measuring an ambient temperature in the drying chamber
  • Step S1004 determining whether the temperature value in the drying chamber is higher than the second preset temperature value, if it is to step S1012, if not, executing step S1006;
  • step S1006 it is determined whether the time after the last change of the dry storage device has reached a preset interval time (for example, 12 hours), if the process proceeds to step S1012, if not, step S1008 is performed;
  • a preset interval time for example, 12 hours
  • Step S1008 it is determined whether the relative humidity value in the drying chamber is higher than the preset humidity value (for example, higher than 50% RH), if the process proceeds to step S1012, if not, step S1010 is performed;
  • the preset humidity value for example, higher than 50% RH
  • step S1010 it is determined whether the dry storage device is turned off (ie, whether the housing of the dry storage device is changed from the open state to the closed state), if the process proceeds to step S1012, if not, return to step S1002;
  • Step S1012 opening the air supply port to supply the drying chamber with the gas cooled by the cold source;
  • step S1014 it is determined whether the temperature measured in the drying chamber is lower than the first preset temperature value. If not, the air supply is continued until the air supply time reaches the requirement; if the step S1016 is performed, the air supply port is closed and the closed state is maintained until the next time is satisfied. The determination condition of any one of steps S1004 to S1010 is performed for the next air supply.
  • the process of opening the air supply port may be performed immediately after the determination condition of any one of steps S1004 to S1010 is satisfied.
  • the air supply may be started immediately after the time after the last air change is completed. It is delayed execution, for example, after the temperature value is higher than the second preset temperature value, the air supply port 33 is opened after a delay.
  • the air exchange method of the dry storage device provided in the embodiment is based on the start signal of triggering the air change of the dry storage device to open the air change, and the air exchange is controlled according to the temperature, thereby ensuring that the sent low temperature air can completely replace the dry air.
  • the humid air in the room so that after the end of the wind change, the relative humidity in the drying room can be guaranteed to meet the requirements of long-term preservation of dry goods, and the long-term air supply can be avoided, and the electric energy used for cooling and air supply is consumed, thereby effectively preventing the mildew of the food. And resurgence.
  • the air exchange method of the dry storage device of the present embodiment flexibly adopts the temperature, humidity, time, and drying chamber opening and closing signals as the start signal for triggering the air change, which is beneficial to the maintenance of the dry environment and the long-term preservation of the dry goods.
  • the triggering temperature for controlling the opening and closing of the air outlet may be based on the temperature of the cold room of the drying chamber and the environment of the refrigerator in which the cold source is located First set to ensure that the gas cooled by the cold source when the air supply port is closed can completely replace the original air in the drying chamber, and the control is more precise, and meets the storage requirements of the dry storage device.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

Appareil de stockage à sec (30) et sont procédé de ventilation. L'appareil de stockage à sec (30) comprend une coque délimitant une chambre de séchage, la coque étant pourvue d'un trou d'alimentation en air (33). Le procédé de ventilation de l'appareil de stockage à sec (30) comprend : l'acquisition d'un signal de départ pour déclencher le dispositif de stockage à sec (30) afin qu'il ventile ; l'ouverture du trou d'alimentation en air (33) en fonction du signal de départ, pour apporter un gaz refroidi par une source froide à la chambre de séchage ; et la mesure de la température dans la chambre de séchage, et la fermeture du trou d'alimentation en air (33) de la chambre de séchage lorsque la température est inférieure à une première valeur de température prédéfinie pour chauffer la chambre de séchage dans un état d'étanchéité.
PCT/CN2015/081875 2014-11-26 2015-06-18 Appareil de stockage à sec et son procédé de ventilation WO2016082536A1 (fr)

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CN201410693300.2A CN104567240B (zh) 2014-11-26 2014-11-26 干燥储物装置及其换风方法

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CN115388596A (zh) * 2022-08-26 2022-11-25 珠海格力电器股份有限公司 一种制冷设备

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CN104567240B (zh) * 2014-11-26 2017-08-29 青岛海尔股份有限公司 干燥储物装置及其换风方法
CN105806010B (zh) * 2016-05-17 2018-07-24 合肥美菱股份有限公司 一种包含可调温湿度区域的风冷冰箱及其控制方法
CN110440515A (zh) * 2018-05-04 2019-11-12 青岛海尔智能技术研发有限公司 一种冰箱的抽屉结构及冰箱
CN110440517B (zh) * 2018-05-04 2022-10-28 青岛海尔智能技术研发有限公司 一种冰箱的湿度控制方法、装置、存储介质和冰箱
CN109497777A (zh) * 2018-11-09 2019-03-22 福建工程学院 茶叶展示柜及其工作方法
CN115875903A (zh) * 2021-09-29 2023-03-31 青岛海尔电冰箱有限公司 冰箱

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CN115388596A (zh) * 2022-08-26 2022-11-25 珠海格力电器股份有限公司 一种制冷设备

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