WO2016082531A1 - 干燥储物装置及其换风方法 - Google Patents

干燥储物装置及其换风方法 Download PDF

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Publication number
WO2016082531A1
WO2016082531A1 PCT/CN2015/081861 CN2015081861W WO2016082531A1 WO 2016082531 A1 WO2016082531 A1 WO 2016082531A1 CN 2015081861 W CN2015081861 W CN 2015081861W WO 2016082531 A1 WO2016082531 A1 WO 2016082531A1
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WIPO (PCT)
Prior art keywords
drying chamber
air
air supply
storage device
dry storage
Prior art date
Application number
PCT/CN2015/081861
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English (en)
French (fr)
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 WO2016082531A1 publication Critical patent/WO2016082531A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • 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
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices

Definitions

  • the invention relates to 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 a wind of a dry storage device wherein the dry storage device comprises a housing defining a drying chamber, the housing being provided with an air supply opening for passing through the air supply opening 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 air cooled by the cold source to the drying chamber; and the time for opening the air supply port is reached After the air supply time is set, the air supply port is closed to raise the temperature of the drying chamber in a sealed state.
  • 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 humidity overrun signal whose relative humidity value in the drying chamber is higher than a preset humidity value.
  • the activation signal includes: a temperature overrun signal in which the temperature in the drying chamber is higher than a preset temperature value.
  • 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 air supply port according to the activation signal includes: opening the air supply port in an immediate or delayed manner after the activation signal is acquired.
  • the air supply time is determined according to the volume of the drying chamber and the air supply volume of the air supply port to ensure that the air cooled by the cold source can completely replace the original air in the drying room.
  • a dry storage apparatus comprising a housing defining a drying chamber, the housing being provided with an air supply opening for supplying gas to the drying chamber through the air supply opening.
  • the air supply port is configured to be turned on after the activation signal for triggering the air change of the dry storage device is obtained, to supply the air cooled by the cold source to the drying room, and to be turned off after the time of opening the air supply port reaches the preset air supply time. In order to warm the drying chamber in a sealed state.
  • the above dry storage device further includes any one or more of the following trigger modules: a timing triggering module 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 Configuring to measure the relative humidity in the drying chamber and generating a start signal when the measured relative humidity value is higher than the preset humidity value; the temperature triggering module is configured to measure the temperature in the drying chamber, and the measured temperature is higher than the pre-measurement The start signal is generated when the temperature value is set; the opening and closing trigger module is configured to detect the open/close state of the casing, and generate a start signal after detecting that the casing is changed from the open state to the closed state.
  • the trigger modules a timing triggering module 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 Configuring to measure the relative humidity in the drying chamber and generating a start signal when the measured relative humidity value is higher than the preset humidity value
  • the temperature triggering module is configured to
  • the above-mentioned 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 present invention is based on a start letter for triggering a change of the air storage device
  • the number is changed and the air is controlled according to the air supply time.
  • the low temperature air can be completely replaced by the humid air in the drying room, so that the relative humidity in the drying room can be preserved for a long time after the air exchange is over.
  • the requirements of dry goods can avoid the long-term air supply, consume the electric energy used for cooling and air supply, and effectively avoid the 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 wind change, which is beneficial to the maintenance of the dry environment and is beneficial to the long-term preservation of dry goods.
  • the air supply time is determined according to the volume of the drying chamber and the air supply volume of the air supply port, and 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 air cooled by the cold source is sent to a relatively high temperature closed environment, and as the low temperature air gradually heats up in the closed space, the relative humidity 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. A cluster of relative humidity lines is shown. Under a certain pressure value, as the temperature increases, the moisture content in the humid air increases accordingly. In a closed environment, 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 air 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 air 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 FIG. 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 defines an enclosed space (hereinafter referred to as a drying chamber), and the dry storage device 30 is disposed in the inner space of the refrigerating chamber 20.
  • Fruit and vegetable foods are stored in the refrigerating compartment 20, so that the relative humidity in the refrigerating compartment 20 is high.
  • the upper space of the refrigerating compartment 20 has a higher relative humidity than its lower space. Therefore, 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 of the female housing 32,
  • the bottom plate 323, the front ends of the two opposite lateral side plates are sealingly fitted or the front end opening of the female housing 32 is sealed 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 plate 323 of the female case 32 of the dry storage device 30 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 also needs to open the air supply port 33 according to the activation signal to perform the drying indoors, because the articles stored in the dry storage device 30 can smear moisture and the dry storage device has a certain sealing effect. Air replacement.
  • the air supply port 33 is configured to be opened after acquiring an activation signal for triggering the air change of the dry storage device 30 to supply cooling to the drying chamber via a cold source.
  • the air is turned off after the time when the air supply port 33 is opened reaches a preset air supply time, so that the drying chamber is heated in a sealed state.
  • the dry storage device 30 further includes any one or more of the following trigger modules: a timing triggering module 72, a humidity triggering module 74, a temperature triggering module 75, and an opening and closing triggering module 76.
  • the above multiple trigger modules may perform air supply opening control according to different usage parameters, wherein the timing triggering module 72 is configured to generate a start signal when the time after the last wind change is completed reaches a preset interval time, that is, every predetermined period. (For example, 12 hours) Start changing the wind once.
  • 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 74 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 set to dry A humidity sensor inside the room to activate the air supply port 33 after the humidity in the drying chamber is exceeded (for example, 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. For example, only when the temperature in the drying chamber is at the normal storage temperature, 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, the dry storage is avoided.
  • the humidity sensor transmits an erroneous activation signal when the object device 30 is in an open state or has been in a blown state.
  • the temperature trigger module 76 can be configured to measure the temperature within the drying chamber and generate an activation signal when the measured temperature is above a predetermined temperature value (eg, 5 degrees Celsius). Since the humidity drop of the drying chamber is achieved by the temperature rise of the sealed environment, it is also possible to use the temperature as the start trigger signal for starting the air supply port 33. Preferably, the temperature triggering module 76 can work with the timer. When the temperature in the drying chamber is higher than the preset temperature value, the air supply port 33 is delayed to open, thereby preventing false control caused by short-term temperature fluctuations, and on the other hand, Ensure that the environment of the drying chamber is more stable.
  • a predetermined temperature value eg, 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, when the drawer door 311 of the drawer body 31 closes or covers the front opening of the female housing 32, the housing of the drying storage device 30 can be considered as 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. This start-up air supply allows the user to enter the drying chamber after the pick-and-place item is opened, and the outside air enters the drying chamber to cause the humidity of the drying chamber to rise.
  • 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 dry storage device 30 is in the normal storage state, the humidity triggering module 72, the timing triggering module 74, and the temperature triggering module 76 cooperate to perform the wind change timing; When the temperature or humidity exceeds the limit, 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 view showing a drying chamber air supply damper of an air-cooled refrigerator when closed according to an embodiment of the present invention
  • Illustrated air duct system diagram FIG. 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
  • FIG. 8 is a schematic view taken along line BB of FIG. Sexual airway system map.
  • 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 can be 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 room.
  • 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 drying chamber air 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 can be a one-way piece.
  • the air supply damper 34 of the air supply port 33 When the air supply damper 34 of the air supply port 33 is opened, the pressure inside the drying chamber rises due to the flow of air into the drying chamber. Under the action, the one-way piece of the return air port 35 of the dry storage device 30 is opened outward, and the airflow in the drying chamber flows out through the return air port 35, and the moisture in the drying chamber is taken away.
  • the air supply damper 34 can be continuously opened for a predetermined time, such as 3 minutes (the length of time can be set according to the volume of the drying chamber and the area of the air supply port 33). 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 air in the drying chamber cannot flow out of the drying chamber from the return air port 35; the air 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 the dry goods are put into the refrigerating room 20, the dry goods are very easy to regain moisture, and 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 the air supply opening is opened according to the activation signal to supply the air cooled by the cold source to the drying chamber;
  • Step S906 determining whether the time for opening the air supply port reaches a preset air supply time
  • Step S908 after the time when the air supply opening is turned on reaches the preset air supply time, the air supply port is closed. In order to warm the drying chamber in a sealed state.
  • the above preset air supply time can be 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 room, and try to avoid excessive air supply. Waste of electrical energy and cold source temperature.
  • 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 alternate flow diagram of a method of changing the air of a dry storage device in accordance with one embodiment of the present invention.
  • step S1002 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 S1010, if not, step S1004 is performed;
  • a preset interval time for example, 12 hours
  • Step S1004 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 it is to step S1010, if not, step S1006;
  • the preset humidity value for example, higher than 50% RH
  • Step S1006 determining whether the temperature value in the drying chamber is higher than the preset temperature value, if it is to step S1010, if not, executing step S1008;
  • Step S1008 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 S1010, if not, return to step S1002;
  • Step S1010 opening the air supply port to supply the air cooled by the cold source to the drying chamber
  • step S1012 it is determined whether the time for opening the air supply port reaches the preset air supply time. If not, the air supply is continued until the air supply time reaches the requirement; if the step S1014 is performed, the air supply port is closed and remains closed until the next step S1002 is satisfied. The determination condition of any one of step S1008 is performed to perform 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 S1002 to S1008 is satisfied, for example, the time after the last wind change is completed reaches a preset interval.
  • the air is turned on immediately, or it may be delayed. For example, after the temperature value is higher than the preset temperature value, the air supply port 33 is opened after a delay.
  • the air exchange method of the dry storage device starts the air exchange according to the start signal for triggering the air change of the dry storage device, and controls the end of the air change according to the air supply time, thereby ensuring that the sent cold air can be completely completed.
  • 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.

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Abstract

一种干燥储物装置（30）及其换风方法，其中干燥储物装置（30）包括限定有干燥室的壳体，壳体上设置有送风口（33）。干燥储物装置（30）的换风方法包括：获取触发干燥储物装置（30）换风的启动信号；根据启动信号开启送风口（33），以向干燥室供给经由冷源冷却的气体；在开启送风口（33）的时间达到预设的送风时间后，关闭送风口（33），以使干燥室在密封状态下升温。该换风方法根据启动信号开启换风，并根据送风时间控制换风结束，既可以保证送入的低温空气可以完全替换干燥室内的潮湿空气，又可以避免长时间送风耗费电能。

Description

干燥储物装置及其换风方法 技术领域
本发明涉及冰箱技术领域，特别是涉及一种干燥储物装置及其换风方法。
背景技术
伴随消费者对于更加健康生活方式的期望，枸杞、茶叶、香菇、桂圆、冬虫夏草等干货食材在饮食结构中的比重逐渐升高。但这些干货食材非常不易存储，如果放在常温中保存，在通风不好的情况下，保存时间长了容易变色、变质，导致营养成分流失；如果放置在冰箱冷藏室内保存，容易受到冷藏室内其他食物的影响导致受潮，引起发霉、变质。如何长期储存干货食材是函待解决的问题。
为解决这一问题，现有技术中出现了在冰箱制冷功能基础上增加可调节湿度的间室，例如在冰箱的冷藏室内形成独立封闭的空间作为干燥室，当干燥室内关闭时，冷藏室内的相对湿度较高的空气不能进入到干燥室内，从而维持干燥室内空气的干燥。
现有技术中构建的干燥室，通过向干燥室内吹送温度较低的冷风，然后利用相对湿度随温度变化的原理，在封闭空间内形成相对湿度较低的干燥环境。然而传统的送风控制没有考虑到放入干燥室内的物品自身含有的水分以及干燥室的密封效果，经常会出现长时间送风导致浪费电能或者送风时间过短无法充分置换干燥室内湿度较高的空气造成干燥效果差的问题。针对以上问题，现有技术中尚未提出有效的解决方案。
发明内容
鉴于上述问题，提出了本发明以便提供一种克服上述问题或者至少部分地解决上述问题的干燥储物装置及相应的干燥储物装置的换风方法。
本发明一个进一步的目的是提高干燥储物装置的干燥效果。
本发明另一个进一步的目的是减少干燥储物装置耗费的电能。
根据本发明的一个方面，提供了一种干燥储物装置的换风方法，其中干燥储物装置包括限定有干燥室的壳体，壳体上设置有送风口，以通过送风口 向干燥室供给气体。该干燥储物装置的换风方法包括：获取触发干燥储物装置换风的启动信号；根据启动信号开启送风口，以向干燥室供给经由冷源冷却的空气；在开启送风口的时间达到预设的送风时间后，关闭送风口，以使干燥室在密封状态下升温。
可选地，启动信号包括：距离上次换风完毕后的时间达到预设间隔时间的定时信号。
可选地，启动信号包括：干燥室内的相对湿度值高于预设湿度值的湿度超限信号。
可选地，启动信号包括：干燥室内的温度高于预设温度值的温度超限信号。
可选地，启动信号包括：干燥储物装置的壳体由打开状态变为关闭状态的状态信号。
可选地，根据启动信号开启送风口包括：在获取到启动信号后，即时或者延时开启送风口。
可选地，送风时间根据干燥室的容积以及送风口的送风量确定，以保证经由冷源冷却的空气可以充分替换干燥室内原有的空气。
根据本发明的另一个方面，提供了一种干燥储物装置，包括限定有干燥室的壳体，壳体上设置有送风口，以通过送风口向干燥室供给气体。送风口被配置为：在获取触发干燥储物装置换风的启动信号后开启，以向干燥室供给经由冷源冷却的空气，并在开启送风口的时间达到预设的送风时间后关闭，以使干燥室在密封状态下升温。
可选地，以上干燥储物装置还包括以下任一种或多种触发模块：定时触发模块，配置为在距离上次换风完毕后的时间达到预设间隔时间时生成启动信号；湿度触发模块，配置为测量干燥室内的相对湿度，并在测量到的相对湿度值高于预设湿度值时生成启动信号；温度触发模块，配置为测量干燥室内的温度，并在测量到的温度高于预设温度值时生成启动信号；开闭触发模块，配置为检测壳体的开闭状态，并在检测到壳体由打开状态变为关闭状态后生成启动信号。
可选地，上述干燥储物装置布置于冰箱的冷藏室内，冷源包括冰箱的冷藏蒸发器或冷冻室。
本发明干燥储物装置的换风方法，根据触发干燥储物装置换风的启动信 号开启换风，并根据送风时间控制换风结束，既可以保证送入的低温空气可以完全替换干燥室内的潮湿空气，从而在换风结束后，可以保证干燥室内的相对湿度达到长时间保存干货的要求，又可以避免长时间送风，耗费制冷和送风使用的电能，有效地避免食物霉变和回潮。
进一步地，本发明的干燥储物装置的换风方法灵活地采用温度、湿度、时间、干燥室开闭信号作为触发换风的启动信号，有利于干燥环境的保持，有利于干货的长期保存。
更进一步地，送风时间根据干燥室的容积以及送风口的送风量确定，控制更加精确，符合干燥储物装置的储物要求。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的干燥储物装置的干燥原理示意图；
图2是根据本发明一个实施例的干燥储物装置所在风冷冰箱的示意性主视图；
图3是沿图2中的剖切线A-A截取的示意性剖视图；
图4是图3所示C处的示意性局部放大图；
图5是根据本发明一个实施例的干燥储物装置的控制框图；
图6是根据本发明一个实施例的风冷冰箱的干燥室送风风门关闭时的示意性风道系统图；
图7是根据本发明一个实施例的风冷冰箱的干燥室送风风门开启时的示意性风道系统图；
图8是沿图2中的剖切线B-B截取的示意性风道系统图；
图9是根据本发明一个实施例的干燥储物装置的换风方法的流程图；以及
图10是根据本发明一个实施例的干燥储物装置的换风方法的一种可选流程图。
具体实施方式
本实施例提供了一种干燥储物装置，布置于冰箱特别是风冷冰箱中，为枸杞、茶叶、香菇、桂圆、冬虫夏草等干货食材提供良好的储存环境。其干燥原理在于，将经过冷源冷却的空气送入相对高温的封闭环境中，随着低温空气在封闭空间逐渐升温，导致其相对湿度下降，有效形成干燥效果。
图1是根据本发明一个实施例的干燥储物装置的干燥原理示意图，图1将湿空气各种参数之间的关系用图线表示，以温度为纵坐标，以含湿量为横坐标，示出了相对湿度线簇。在一定压力值下，随着温度的增加，湿空气中的含湿量相应增加。在封闭环境中，空气含湿量(一般指绝对湿度)随温度回升是不变的，也就是说，在封闭环境中，空气的含湿量不会随温度的回升而改变。例如图1中的两个点a点和b点在一条竖直线上，a点(-18℃，85％RH)为换气结束后封闭空间的低温空气状态点，b点(5℃，15％RH)为空气温度回升后封闭空间的空气状态点。可以看出封闭环境的温度从-18℃回升到5℃，封闭环境的相对湿度从85％RH降低到15％RH，由此可以得出封闭环境中空气温度的上升，可以有效地降低相对湿度。也就是说，如果封闭环境中充满温度为-18℃，相对湿度为85％RH的空气后，温度上升，在温度上升至5℃时，理论上相对湿度会降低到15％RH。而-18℃一般可以为冰箱中冷冻室或蒸发器的温度，而5℃一般可以为冰箱冷藏室的温度。利用这一物理特性，可以实现本实施例中干燥储物装置的储物环境。
图2是根据本发明一个实施例的干燥储物装置所在风冷冰箱的示意性主视图，风冷冰箱100包括冷藏室20和冷冻室10。冷藏室门24和冷冻室门14被设置在冷藏室20和冷冻室10的前开口处，分别用以打开或关闭冷藏室20和冷冻室10。冷藏室20可与冷冻室10侧向相邻设置，或者说冷藏室20设置在冷冻室10的侧向。冷藏室20与冷冻室10之间设置有隔板12。
如本领域技术人员可以理解的，本发明实施例的风冷冰箱100还可包括制冷循环系统以及风道60(参考图8)。制冷循环系统例如可包括压缩机(图中未示出)、冷凝器(图中未示出)、节流元件(图中未示出)以及蒸发器50(参考图8)。风冷冰箱100还可设有位于风道60内的风机40(参考图8)，风机40用以将经过蒸发器50降温除湿后的气流吹向冷藏室20和/或冷冻室10。
特别地，风冷冰箱100还可包括具有独立封闭空间的干燥储物装置30， 干燥储物装置30限定有封闭空间(以下称之为干燥室)，干燥储物装置30设置在冷藏室20的内部空间中。冷藏室20内会存放果蔬类食物，使得冷藏室20内的相对湿度较高。冷藏室20的上部空间相比其下部空间会有更高的相对湿度。因此，干燥储物装置30可优选设置在冷藏室20内下部的空间中，也就是说，干燥储物装置30的顶板(参见图4中的顶板322)在冷藏室20内所处的高度位置不超过冷藏室20内部空间整个高度的下三分之一或二分之一。
图3是沿图2中的剖切线A-A截取的示意性剖视图，图4是图3所示C处的示意性局部放大图。参见图3和图4，在一些实施例中，干燥储物装置30可由抽屉式密封容器构成。干燥储物装置30可包括抽屉本体31和母座箱体32(本领域技术人员可以理解，抽屉本体31和母座箱体32可共同组成干燥储物装置的用于限定干燥室的壳体)。抽屉本体31可具有用于容纳待存物品的、且顶端开口的容腔。母座箱体32可具有背板321和在各自的后端与背板321结合的顶板322、底板323和两个相对的横向侧板，以形成可抽拉地容纳抽屉本体31的凹腔。母座箱体32的前端开口，抽屉本体31可沿冷藏室20的前后方向被拉出母座箱体32和容置于母座箱体32中(被推进母座箱体32中)。在一些实施例中，抽屉本体31上可设置用于抽拉抽屉本体31的抽屉门311，抽屉门311的边缘处设置有密封条37。这样，当抽屉本体31与母座箱体32闭合时，也就是当抽屉本体31被推进母座箱体32中时，抽屉门311上的密封条37可与母座箱体32的顶板322、底板323、两个相对的横向侧板的前端密封配合或者说将母座箱体32的前端开口密封，以使干燥储物装置30基本密封。
在一些实施例中，可在抽屉本体31横向的两个侧壁上设置滑道，相应地在母座箱体32两个相对的横向侧板的内表面上安装滑轨，从而使抽屉本体31可滑动地安装于母座箱体32。
在进一步的实施例中，干燥储物装置30的母座箱体32的底板323邻近冷藏室20内部空间的底表面设置。即干燥储物装置30的母座箱体32的底板323靠近于冷藏室20内部空间的底表面设置，且其间存在间隙，也即是底板323与冷藏室20内部空间底表面之间存在间隙。在一些实施例中，干燥储物装置30的母座箱体32的底板323搁置在底表面上，或者说干燥储物装置30设置在冷藏室20内部空间的底部。
干燥储物装置30包括限定有干燥室的壳体，壳体上设置有送风口33，以通过送风口33向干燥室供给气体。即干燥储物装置30包括用于限定干燥室、且具有送风口33的壳体。送风口33供冷却气流流入干燥室使用。干燥室与冷冻室10通过送风口33可控地连通，以经由送风口33将冷冻室10内部的冷却气流受控地供应至干燥室。低温的冷却气流通过送风口33流入干燥室内后可降低干燥室的温度，并利用气温的上升使干燥室内的相对湿度降低。在本发明的一些是实施例中，送风口33可设置在母座箱体32的与冷冻室10相邻的横向侧板上。
相应地，在冷冻室10侧壁上设置开口16(参考图8)，在干燥储物装置30与冷冻室10之间的隔板12上设置有通风通道13，送风口33通过通风通道13与开口16连通。冷冻室10下部的冷却气流可经由开口16、通风通道13、送风口33受控地供应至干燥室。本领域技术人员应理解，母座箱体32的与冷冻室10相邻的横向侧板可由隔板12的下部形成，送风口33开设在隔板12的下部，此时送风口33可位于通风通道13的邻近干燥室的一端。
由于干燥储物装置30中存放的物品会散发水分，且干燥储物装置具有一定的密封效果，因此，本发明实施例的干燥储物装置30还需要根据启动信号开启送风口33，进行干燥室内的空气置换。
图5是根据本发明一个实施例的干燥储物装置的控制框图，送风口33被配置为：在获取触发干燥储物装置30换风的启动信号后开启，以向干燥室供给经由冷源冷却的空气，并在开启送风口33的时间达到预设的送风时间后关闭，以使干燥室在密封状态下升温。
干燥储物装置30还包括以下任一种或多种触发模块：定时触发模块72、湿度触发模块74、温度触发模块75、开闭触发模块76。
以上多个触发模块可根据不同的使用参数进行送风开启控制，其中定时触发模块72配置为在距离上次换风完毕后的时间达到预设间隔时间时生成启动信号，也就是每隔预定周期(例如12小时)开始换风一次。具体间隔的时间可以根据对干燥室的预先测试确定，以在干燥室处于正常放置物品的状态下保证干燥室湿度保持在限值以下为宜。
湿度触发模块74配置为测量干燥室内的相对湿度，并在测量到的相对湿度值高于预设湿度值时生成启动信号。湿度触发模块74包括设置在干燥 室内部的湿度传感器，以便在干燥室内湿度超限(例如高于50％RH)后启动送风口33。一种优选的方式为湿度触发模块74还可以设置有温度传感器，以配合湿度传感器进行工作。例如仅在干燥室内的温度处于正常储存温度的情况下，根据湿度传感器的测量数据进行送风口33的开启，一方面避免了湿度传感器测量的湿度受到温度的影响，另一方面也避免了干燥储物装置30在打开状态或已在送风状态下，湿度传感器发送错误的启动信号。
温度触发模块76可以配置为测量干燥室内的温度，并在测量到的温度高于预设温度值(例如5摄氏度)时生成启动信号。由于干燥室的湿度下降是依靠密封环境的温度上升来实现的，因此也可以利用温度作为启动送风口33的启动触发信号。优选地，温度触发模块76可以配合定时器工作，当干燥室内的温度高于预设温度值后，延时开启送风口33，一方面防止短暂的温度波动造成的误控制，另一方面也可保证使干燥室的环境更稳定。
开闭触发模块78配置为检测壳体的开闭状态，并在检测到壳体由打开状态变为关闭状态后生成启动信号。本领域技术人员应理解，当抽屉本体31推进母座箱体32时，即抽屉本体31的抽屉门311封闭或覆盖母座箱体32的前端开口时，可以认为干燥储物装置30的壳体处于关闭状态；当抽屉本体31抽拉出母座箱体32时，可以认为干燥储物装置30的壳体处于打开状态。这种启动送风考虑到用户在取放物品打开壳体后，外部空气进入干燥室造成干燥室的湿度上升。
在本发明的一些实施例中，干燥储物装置30可包括以上几种触发模块中的任意一种触发模块，以对送风口33进行控制。
在本发明的另一些实施例中，干燥储物装置30还可包括多种触发模块，以同时对送风口33进行控制。例如，干燥储物装置30可包括开闭触发模块78、湿度触发模块72、定时触发模块74和温度触发模块76。当用户取放物品后，开闭触发模块78工作；如果干燥储物装置30处于正常储存状态时，湿度触发模块72、定时触发模块74、温度触发模块76配合工作，定时进行换风；如果出现温度或湿度超限的情况，也可以启动换风。在获取到启动信号后，即时或者延时开启送风口33。
上述干燥储物装置30布置于冰箱的冷藏室20内，冷源包括冰箱的冷藏蒸发器或冷冻室。
图6是根据本发明一个实施例的风冷冰箱的干燥室送风风门关闭时的 示意性风道系统图，图7是根据本发明一个实施例的风冷冰箱的干燥室送风风门开启时的示意性风道系统图，图8是沿图2中的剖切线B-B截取的示意性风道系统图。参见图6和图7，送风口33处可设置送风风门34，以受控地向干燥室中引入冷却气流。当然，送风风门34也可设置在通风通道13中。送风风门34例如可为电动风门。具体地，当干燥室不需要送风时，送风风门34关闭，冷冻室10内部的冷却气流不会流向干燥室，冰箱中的风路流向参见图6(图中实线箭头表示送风方向，虚线箭头表示回风方向)；当干燥室需要送风时，送风风门34开启，冷冻室10内部的部分冷却气流流向干燥室，冰箱中的风路流向参见图7和图8。
送风风门34还可以优选配置为可调节送风口的开度大小。具体地，当干燥室需要风量大时，送风风门34调大送风口的开度，当干燥室需要风量小时，送风风门34调小送风口的开度。以上送风时间可根据干燥室的容积以及送风口的送风量确定，以保证经由冷源冷却的空气可以充分替换干燥室内原有的空气。
在替代性实施例中，干燥储物装置30的送风口33也可直接与风道60连通，以使经过蒸发器50降温除湿后的气流经送风口33直接流入干燥室(而不需要经过冷冻室10或冷藏室20)。在替代性实施例中，当风冷冰箱100具有两个分别为冷藏室20和冷冻室10降温的冷藏蒸发器和冷冻蒸发器时，可使经冷藏蒸发器降温除湿后的气流经由送风口33直接流入干燥室(不需要经过冷藏室20)。
在本发明的一些实施例中，如图4所示，干燥储物装置30还具有供所述干燥室内空气流出干燥储物装置30的回风口35。当经由送风口33向干燥室送风时，将干燥室内湿度较大的空气通过回风口35置换出干燥室。在一些实施例中，回风口35设置在干燥储物装置30的背板321上。经干燥储物装置30的回风口35流出的气流可流入冷藏室20中，并随冷藏室20的回风循环回到风道60中。
在一些实施例中，回风口35处可设置用于关闭或开启回风口35的回风风门36。回风风门36例如可为单向风门，即只能从干燥室向外出风而不能使干燥室外部的风流进干燥室内。
在一些实施例中，回风风门36可为单向片，在送风口33的送风风门34开启时，由于有气流进入干燥室，干燥室内部的压力会升高，在压力的 作用下，干燥储物装置30的回风口35的单向片向外打开，干燥室内的气流通过回风口35流出，并将干燥室内的水分带走。为了保证干燥室内的水分被充分带走，可将送风风门34持续打开预定时间，如3min(时间长短可根据干燥室容积和送风口33面积进行设定)。然后送风风门34关闭，由于没有持续的空气进入干燥室，干燥室内的压力会降低，干燥储物装置30回风口35的单向片在自重的作用下自动关闭。此时干燥室内形成了一个低温的密闭空间。即干燥室内的冷却空气无法从回风口35流出干燥室；干燥室外部相对湿度较高的空气也无法进入干燥室内。干燥室内的空气会与外部环境发生热传导而进行热交换，使得其温度升高，从而降低干燥室内空气的相对湿度。
在一些实施例中，回风风门36也可为电控风门，其可自动与送风口33处的送风风门34保持同步开闭。
表1示出了根据本发明一个具体实施例的冷藏室和干燥室温湿度对比数据。从表1可以看出干燥室的相对湿度比冷藏室20低16％左右，如果冷藏室20放置大量的蔬菜，冷藏室20内的相对湿度可以达到65％。如果把干货放入冷藏室20中，干货非常容易回潮，时间长了容易发霉，造成干货变质。而在本发明中，由于干燥室是相对密闭的空间，放在干燥室的干货受冷藏室20湿度影响很小，可以保证干燥室相对湿度低于40％以下。从而使干货长期保存不回潮、不变质。
表1 冷藏室和干燥室温湿度对比数据
  干燥室(℃) 干燥室(％RH) 冷藏室(℃) 冷藏室(％RH)
平均值 7.0 26.0 5.7 43.3
本发明实施例还提供了一种干燥储物装置的换风方法，适用于对以上实施例中的任一种干燥储物装置30进行控制，保证干燥储物装置30限定的干燥室具备良好的干燥储物环境。
图9是根据本发明一个实施例的干燥储物装置的换风方法的流程图，该干燥储物装置的换风方法包括：
步骤S902，获取触发干燥储物装置换风的启动信号；
步骤S904，根据启动信号开启送风口，以向干燥室供给经由冷源冷却的空气；
步骤S906，判断开启送风口的时间是否达到预设的送风时间；
步骤S908，在开启送风口的时间达到预设的送风时间后，关闭送风口， 以使干燥室在密封状态下升温。
以上预设的送风时间可以根据根据干燥室的容积以及送风口的送风量确定，以保证经由冷源冷却的空气可以充分替换干燥室内原有的空气，而且尽量避免过量的送风导致的电能和冷源温度的浪费。
以上启动信号可以包括以下任意一种：
距离上次换风完毕后的时间达到预设间隔时间的定时信号；
干燥室内的相对湿度值高于预设湿度值的湿度超限信号；
干燥室内的温度高于预设温度值的温度超限信号；
干燥储物装置的壳体由打开状态变为关闭状态的状态信号。
在本发明的一些实施例中，可以选择以上几种启动信号中的任意一种启动信号对送风口33进行控制；在本发明的另一些实施例中，还可以选择多种启动信号同时对送风口33进行控制。
图10是根据本发明一个实施例的干燥储物装置的换风方法的一种可选流程图。
在干燥储物装置启动后，可以依次执行以下步骤：
步骤S1002，判断干燥储物装置距离上次换风完毕后的时间是否达到预设间隔时间(例如12小时)，若是跳转至步骤S1010，若否，执行步骤S1004；
步骤S1004，判断干燥室内的相对湿度值是否高于预设湿度值(例如高于50％RH)，若是跳转至步骤S1010，若否，执行步骤S1006；
步骤S1006，判断干燥室内的温度值是否高于预设温度值，若是跳转至步骤S1010，若否，执行步骤S1008；
步骤S1008，判断干燥储物装置是否被开启后关闭(也就是判断干燥储物装置的壳体是否由打开状态变为关闭状态)，若是跳转至步骤S1010，若否，返回执行步骤S1002；
步骤S1010，开启送风口，以向干燥室供给经由冷源冷却的空气；
步骤S1012，判断开启送风口的时间是否达到预设的送风时间，若否，继续送风直至送风时间达到要求；若是执行步骤S1014，关闭送风口，保持封闭状态，直至满足下一次步骤S1002至步骤S1008中任一项的判断条件，以进行下一次送风。
以上开启送风口的过程，可以是在满足步骤S1002至步骤S1008中任一项的判断条件后立刻执行，例如在距离上次换风完毕后的时间达到预设间隔 时间立即开启送风，也可以是延时执行，例如在温度值高于预设温度值后，延时一段时间后开启送风口33。
本实施例中提供的干燥储物装置的换风方法，根据触发干燥储物装置换风的启动信号开启换风，并根据送风时间控制换风结束，既可以保证送入的低温空气可以完全替换干燥室内的潮湿空气，从而在换风结束后，可以保证干燥室内的相对湿度达到长时间保存干货的要求，又可以避免长时间送风，耗费制冷和送风使用的电能，有效地避免食物霉变和回潮。
进一步地，本实施例的干燥储物装置的换风方法灵活地采用温度、湿度、时间、干燥室开闭信号作为触发换风的启动信号，有利于干燥环境的保持以及干货的长期保存。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种用于干燥储物装置的换风方法，所述干燥储物装置包括限定有干燥室的壳体，所述壳体上设置有送风口，以通过所述送风口向所述干燥室供给气体，所述方法包括：
    获取触发所述干燥储物装置换风的启动信号；
    根据所述启动信号开启所述送风口，以向所述干燥室供给经由冷源冷却的空气；
    在开启所述送风口的时间达到预设的送风时间后，关闭所述送风口，以使所述干燥室在密封状态下升温。
  2. 根据权利要求1所述的方法，其中
    所述启动信号包括：距离上次换风完毕后的时间达到预设间隔时间的定时信号。
  3. 根据权利要求1所述的方法，其中
    所述启动信号包括：所述干燥室内的相对湿度值高于预设湿度值的湿度超限信号。
  4. 根据权利要求1所述的方法，其中
    所述启动信号包括：所述干燥室内的温度高于预设温度值的温度超限信号。
  5. 根据权利要求1所述的方法，其中
    所述启动信号包括：所述干燥储物装置的所述壳体由打开状态变为关闭状态的状态信号。
  6. 根据权利要求1至5中任一项所述的方法，其中，根据所述启动信号开启所述送风口包括：
    在获取到所述启动信号后，即时或者延时开启所述送风口。
  7. 根据权利要求1至5中任一项所述的方法，其中
    所述送风时间根据所述干燥室的容积以及所述送风口的送风量确定，以保证所述经由冷源冷却的空气充满所述干燥室。
  8. 一种干燥储物装置，包括限定有干燥室的壳体，所述壳体上设置有送风口，以通过所述送风口向所述干燥室供给气体，其中
    所述送风口被配置为：在获取触发所述干燥储物装置换风的启动信号后开启，以向所述干燥室供给经由冷源冷却的空气，并在开启所述送风口的时间达到预设的送风时间后关闭，以使所述干燥室在密封状态下升温。
  9. 根据权利要求8所述的干燥储物装置，还包括以下任一种或多种触发模块：
    定时触发模块，配置为在距离上次换风完毕后的时间达到预设间隔时间时生成所述启动信号；
    湿度触发模块，配置为测量所述干燥室内的相对湿度，并在测量到的相对湿度值高于预设湿度值时生成所述启动信号；
    温度触发模块，配置为测量所述干燥室内的温度，并在测量到的温度高于预设温度值时生成所述启动信号；
    开闭触发模块，配置为检测所述壳体的开闭状态，并在检测到所述壳体由打开状态变为关闭状态后生成所述启动信号。
  10. 根据权利要求8或9所述的干燥储物装置，其中
    所述干燥储物装置布置于冰箱的冷藏室内，
    所述冷源包括所述冰箱的冷藏蒸发器或冷冻室。
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