WO2021031658A1 - 一种冰箱 - Google Patents

一种冰箱 Download PDF

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Publication number
WO2021031658A1
WO2021031658A1 PCT/CN2020/094493 CN2020094493W WO2021031658A1 WO 2021031658 A1 WO2021031658 A1 WO 2021031658A1 CN 2020094493 W CN2020094493 W CN 2020094493W WO 2021031658 A1 WO2021031658 A1 WO 2021031658A1
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WO
WIPO (PCT)
Prior art keywords
vacuum
vacuuming
vacuum chamber
control
pressure value
Prior art date
Application number
PCT/CN2020/094493
Other languages
English (en)
French (fr)
Inventor
周晓东
王美艳
杨帅岭
王海燕
闫军旺
鞠晓晨
Original Assignee
海信（山东）冰箱有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海信（山东）冰箱有限公司 filed Critical 海信（山东）冰箱有限公司
Publication of WO2021031658A1 publication Critical patent/WO2021031658A1/zh

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • 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
    • F25D23/02—Doors; Covers
    • 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
    • F25D29/003—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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control 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
    • F25D2600/00—Control issues
    • F25D2600/06—Controlling according to a predetermined profile

Definitions

  • the present disclosure relates to the technical field of disclosed refrigerators, in particular to a refrigerator.
  • Fresh-keeping technology is a technology that the ice cold industry has focused on and developed in recent years. From the perspective of technical classification, it can be mainly divided into the control of temperature, humidity, gas and microorganisms related to food materials. Among them, the research on temperature and humidity is more in-depth. In recent years, gas regulation technology has gradually spread from the food production industry to the home appliance industry. Its main purpose is to inhibit the self-respiration of food and the respiration of microorganisms and, therefore, oxygen control technology has become an important measure. The most direct and convenient way to reduce oxygen concentration is vacuum technology, so vacuum packaging technology and vacuum packaging machines came into being.
  • the vacuum packaging technology implemented on refrigerators is mainly to set up a sealed drawer in the refrigerator, and perform vacuum processing by a vacuum pump arranged outside the drawer, so that the drawer maintains a negative pressure state.
  • this method can only vacuum the ingredients in the drawer, and cannot play a role in the ingredients in other areas of the refrigerator, and it cannot play a role in keeping the ingredients in other areas fresh.
  • a refrigerator including: a vacuum packaging device, a control unit, and an input unit.
  • the vacuum packaging device includes: a lower vacuum chamber fixed on a door and an upper vacuum chamber that moves up and down under the action of a driving device After the upper vacuum chamber and the lower vacuum chamber are connected to form a vacuuming zone, the vacuuming zone is connected to the vacuum pump, and also includes a plastic sealing part, which is used for heating and plastic sealing the storage bag.
  • the input unit is used to receive the vacuum packaging instruction issued by the user
  • the control unit is used to control the driving device to start after the input unit receives the vacuum packaging instruction issued by the user, so that the upper vacuum chamber and the lower vacuum chamber perform the first The stage descent and the second stage descent clamp the storage bag in the refrigerator, and then control the vacuum pump to start vacuuming the vacuum area.
  • control the plastic sealing part to perform Heating and molding.
  • FIG. 1 is a schematic structural diagram of a vacuum packaging device provided by some embodiments of the disclosure.
  • Figure 2 is a schematic diagram of a refrigerator provided by some embodiments of the present disclosure.
  • Figure 3 is a schematic diagram of a refrigerator provided by some embodiments of the present disclosure.
  • FIG. 4 is a schematic cross-sectional view of a vacuum packaging device provided by some embodiments of the disclosure.
  • FIG. 5 is a schematic diagram of a vacuum packaging device provided by some embodiments of the disclosure.
  • FIG. 6 is a schematic diagram of a flow chart of vacuum plastic packaging provided by some embodiments of the present disclosure.
  • FIG. 7 is a schematic diagram of a lower vacuum chamber descending process provided by some embodiments of the present disclosure.
  • FIG. 8 is a schematic diagram of a process of vacuum plastic packaging provided by some embodiments of the present disclosure.
  • FIG. 9 is a schematic diagram of a flow chart of discouragement provided by some embodiments of the present disclosure.
  • FIG. 10 is a schematic diagram of a control panel of a refrigerator provided by some embodiments of the present disclosure.
  • FIG. 1 exemplarily shows a structure of a refrigerator provided by an embodiment of the present disclosure.
  • the refrigerator may include an input unit 100, a control unit 200, and a vacuum packaging device 300.
  • the input unit 100 can be connected to various control buttons provided on the control panel of the refrigerator, and is used to receive various control instructions issued by the user and send the received various control instructions to the control unit 200.
  • the control unit 200 may be an integrated circuit chip with control functions such as a controller, a processor, etc., specifically may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) ) Or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field programmable gate array
  • the control unit 200 after receiving various control instructions issued by the user sent by the input unit 100, controls the vacuum packaging device 300 to perform corresponding control operations.
  • control unit 200 and the input unit 100 can be integrated with the vacuum packaging device 300, or can be installed as separate components in different positions of the refrigerator.
  • Fig. 2 is a schematic diagram of a refrigerator provided by some embodiments of the present disclosure.
  • the vacuum packaging device 300 can be installed on the refrigerating door 401 of the refrigerator, or on the freezing door 402. Since the refrigerating door 401 is located on the upper side, in order to conform to the user's usage habits, it is usually preferably installed on the refrigerator. On the door body 401.
  • Fig. 3 is a schematic diagram of a refrigerator provided by some embodiments of the present disclosure.
  • the vacuum packaging device 300 includes a first part 11 and a second part 12.
  • the refrigerating door panel 4012 of the refrigerating door body 401 is provided with a control panel 4011, which can also be a display panel, for the convenience of user operations.
  • the vacuum packaging device 300 may include: a lower vacuum chamber 312 fixed on the door, and an upper vacuum chamber 311 that moves up and down under the action of a driving device.
  • the upper vacuum chamber 311 is docked with the lower vacuum chamber 312
  • a vacuuming area 310 is formed, and the vacuuming area 310 is connected to the vacuum pump 320.
  • the vacuum packaging device 300 may further include a plastic sealing part 330 for heating and plastic sealing the storage bag.
  • the upper vacuum chamber 311 may be located on the upper support 313, the lower vacuum chamber 312 may be located on the lower support 314, and after the upper vacuum chamber 311 moves to the lower vacuum chamber 312, the The upper vacuum chamber 311 and the lower vacuum chamber 312 are butt-sealed to form the vacuum area 310.
  • the control unit 200 can control the upper support 313 to automatically lift, lock and unlock the upper vacuum chamber 311 and the lower vacuum chamber 312, thereby realizing automatic vacuum packaging , Improve the intelligence of the refrigerator.
  • the vacuuming area 310 can be connected to the vacuum pump 320 through a pipeline 360, so that the vacuum pump 320 can vacuum the vacuuming area 310.
  • a first sealing groove 315 is provided on the outer circumference of the upper vacuum chamber 311, and a second sealing groove 316 is provided on the outer circumference of the lower vacuum chamber 312.
  • the first sealing groove 315 is sealed with the second sealing groove 315.
  • the grooves 316 are positioned oppositely and are provided with a sealing ring 317 inside.
  • the two sealing rings 317 arranged in the first sealing groove 315 and the second sealing groove 316 seal the vacuuming zone 310 on the inside, realizing the reliability of the vacuuming zone 310 seal.
  • a packaging area 331 is provided on the outside of the vacuuming area 310.
  • the packaging area 331 is provided with a heat insulation pad 332 and a plastic sealing part 330 that are arranged oppositely.
  • the plastic sealing part 330 is arranged in a recess on the lower surface of the upper support 313.
  • the heat insulation pad 332 is installed in the groove on the upper surface of the lower support 314.
  • the storage bag can be quickly plastic-sealed through the plastic-sealing part 330 of the packaging area 331.
  • the driving device drives the upper support 313 to move up, and the user can Pull out the storage bag to complete the plastic sealing of the storage bag.
  • FIG. 5 is a schematic diagram of a vacuum packaging device provided by some embodiments of the disclosure.
  • the vacuum packaging device 300 may further include a pressure sensing device 340 and a pressure relief device 350.
  • the vacuum pump 320 and the pressure sensing device 340 are connected to the vacuum area 310 through a pipeline 360.
  • the vacuum pump 320 is used for vacuuming the vacuuming zone 310
  • the pressure sensing device 340 is used for determining whether the pressure value in the vacuuming zone 310 meets a preset condition. After determining that the preset condition is met, the vacuum pump 320 stops vacuuming.
  • the vacuum pump 320 is used to draw vacuum to the vacuuming zone 310 under the control of the control unit 200, and the pressure sensing device 340 is used to sense the pressure value in the vacuuming zone 310 in real time, and when the pressure value in the vacuuming zone 310 reaches a preset condition , Send a pressure instruction to the control unit 200, so that the control unit 200 controls the vacuum pump 320 to stop working according to the pressure instruction.
  • the vacuum pump 320, the vacuum area 310, the pressure sensing device 340 and other parts are connected by a pipeline 360 made of silica gel or other materials, and the connection head needs to be kept sealed.
  • the vacuum pump 320 is used to provide negative pressure in the system.
  • the pressure sensing device 340 is connected to the vacuum area 310 through a three-way valve, and indicates the pressure value in the vacuum area 310 in real time. When the pressure value in the vacuum area 310 reaches a preset condition, the pressure sensing device 340 transmits the data to the control unit 200. After the control unit 200 determines, it gives the vacuum pump 320 command to stop the vacuum pump 320, and then performs the sealing procedure.
  • the pressure relief device 350 is used to relieve the pressure of the vacuum area 310 and open the vacuum area 310.
  • the pressure relief device 350 is connected to the pressure sensing device 340 and the vacuum area 310 through a tee.
  • the control unit 200 sends a signal to the pressure relief device 350, and the pressure relief device 350 opens the sealing valve of the pipeline 360 so that the external atmosphere enters the vacuum through the pipeline 360 In area 310, the pressure is relieved.
  • the above-mentioned plastic sealing part 330 may include heating wires and compression rubber strips, which are respectively located outside the upper vacuum chamber 311 and the lower vacuum chamber 312. When it is determined that the pressure value in the vacuuming zone 310 meets the preset condition, the heating wire and the compression rubber strip perform hot-melt sealing of the storage bag.
  • Fig. 6 is a schematic diagram of a process of vacuuming plastic packaging provided by some embodiments of the present disclosure, including:
  • Step 601 The input unit receives a vacuum packaging instruction.
  • the input unit can receive a vacuum packaging instruction issued by the user.
  • the vacuum packaging instruction can be issued by the user through a control button on the refrigerator or through a human-computer interaction device, or through an application associated with the refrigerator.
  • the program is issued by the terminal device.
  • step 602 the control unit controls the driving device to start, so that the upper vacuum chamber and the lower vacuum chamber are lowered in the first stage and the second stage respectively to clamp the storage bag in the refrigerator.
  • control unit controlling the driving device to drive the upper vacuum chamber to move to the lower vacuum chamber can be divided into two stages. The details can be seen in the process shown in Figure 7, including:
  • step 701 the upper vacuum chamber performs a first stage lowering at a first speed.
  • the upper vacuum chamber moves to the lower vacuum chamber at a first speed under the driving of the driving device, which is the process of the upper vacuum chamber falling rapidly.
  • step 702 it is determined whether the upper vacuum chamber is lowered to a first preset distance, if yes, go to step 703, and if not, go to step 701.
  • the second stage of descent can be performed.
  • step 703 the upper vacuum chamber performs a second stage lowering at a second speed.
  • the upper vacuum chamber moves to the lower vacuum chamber at the second speed under the driving of the driving device. This is a slow descending stage to ensure the tightness of the upper vacuum chamber and the lower vacuum chamber.
  • step 704 it is judged whether the upper vacuum chamber is lowered to the second preset distance, if yes, go to step 705, otherwise go to step 703.
  • Step 705 the upper vacuum chamber stops descending, maintains the pressure of the lower vacuum chamber, and enters the vacuuming stage.
  • the driving device stops driving, but keeps the output not closed, and maintains the downward pressure of the upper vacuum chamber, so as to enter the vacuuming stage for vacuuming.
  • first speed is greater than the second speed
  • first preset distance, the second preset distance, the first speed, and the second speed can be set based on experience.
  • the first preset distance and the second preset distance It can be achieved by controlling the preset number of advances of the electric motor.
  • the driving device can drive the upper support to move at a higher speed in the direction approaching the lower support until the sealing ring in the first sealing groove on the upper support and the second sealing groove on the lower support After the sealing ring is in contact, move down the support at a low speed until the sealing ring reaches the set deformation and stops. For example, it can be lowered quickly at the initial stage.
  • start the vacuum pump When the upper and lower sealing rings are in contact, start the vacuum pump; improve the efficiency of vacuum packaging; and then move the upper support downwards with a low speed and large force until the sealing ring reaches the set deformation. Therefore, the sealing performance of the vacuuming zone can be improved, and the hidden dangers of slow vacuuming or failure to vacuum due to air leakage in the vacuuming zone can be avoided.
  • the control unit controls the vacuum pump to start vacuuming the vacuuming zone, and when the pressure value of the vacuuming zone meets the preset condition, controls the plastic sealing part to heat and plastic seal the storage bag.
  • the preset condition may be at least one of the following conditions, including: the pressure value reaches the first pressure value; or the vacuum time reaches the preset vacuum time or meets the abnormality detection condition.
  • the abnormality detection condition may be that the pressure value reaches the second pressure value and the pressure value changes less than the third pressure value after a preset time.
  • the first pressure value is greater than the second pressure value; the second pressure value is greater than the third pressure value.
  • the first pressure value, the second pressure value, the third pressure value, the preset vacuum time and the preset time can be set based on experience.
  • the vacuuming device 300 can be used to stop vacuuming the vacuuming area when it is determined that the pressure value in the vacuuming area reaches the first pressure value or the vacuuming time reaches the preset vacuuming time. And the vacuuming device 300 can also determine that the pressure value in the vacuuming zone reaches the second pressure value and the pressure value change within the preset time is less than the third pressure value during the vacuuming process, determines that the vacuuming is abnormal, and stops the vacuuming.
  • the vacuum area is evacuated, and the vacuum area is relieved of pressure, and the vacuum area is opened.
  • FIG. 8 is a schematic diagram of a vacuum molding process provided by some embodiments of the present disclosure. As shown in Figure 8, including:
  • step 801 the vacuum packaging device determines whether the pressure value in the evacuated area reaches the first pressure value, if yes, then go to step 806, otherwise go to step 802.
  • the pressure sensing device in the vacuum packaging device can determine whether the pressure value in the vacuuming area reaches the first pressure value, and after determining that the first pressure value is reached, it sends a pressure instruction to the control unit, and the control unit controls the vacuum pump to stop vacuuming.
  • step 802 the control unit determines whether the vacuuming time has reached the preset vacuuming time, if yes, go to step 806, otherwise go to step 803.
  • the control unit may determine whether the vacuuming time reaches the preset vacuuming time, and when it is determined that the preset vacuuming time is reached, control the vacuum pump to stop vacuuming.
  • step 803 the vacuum packaging device determines whether the pressure value in the evacuated area reaches the second pressure value, if yes, then go to step 804, otherwise go to step 801.
  • step 804 the vacuum packaging device determines whether the change in the pressure value in the vacuum area after a preset time is less than the third pressure value, if yes, go to step 805, otherwise go to step 801.
  • the vacuum packaging device can determine that the vacuuming process is abnormal when the pressure value in the vacuuming zone reaches the second pressure value after a preset time and the change of the pressure in the vacuuming zone is less than the third pressure value after a preset time If the seal is not good, or foreign matter enters, the seal is wrinkled, the bag is broken, etc., it is necessary to stop the vacuum in advance. At this time, an abnormal instruction can be sent to the control unit, and the control unit can control the vacuum pump to stop vacuuming.
  • Step 805 Stop vacuuming, release the pressure in the vacuumed zone, and open the vacuumed zone.
  • the control unit can control the vacuum pump to stop vacuuming, and control the pressure relief device in the vacuum packaging device to release the pressure in the vacuum area.
  • Step 806 Stop vacuuming and perform sealing and heating.
  • step 807 after the sealing and heating operation reaches the set time, delay the first time to enter the deflation stage.
  • control unit controls the plastic sealing part to heat and plastic seal the storage bag for the heating time, it can enter the deflation stage after delaying the first time.
  • the set time and the first time can be set based on experience.
  • FIG. 9 is a schematic diagram of a flow chart of a deflation provided by some embodiments of the present disclosure. Such as:
  • Step 901 the control unit controls the deflation device to perform a deflation operation.
  • the control unit controls the venting device to open the valve to vent the pipeline.
  • step 902 the control unit determines whether the deflation exceeds the deflation time, and if so, proceeds to step 903, otherwise proceeds to step 901.
  • the deflation time can be set based on experience.
  • step 903 the control unit controls the driving device to start to raise the upper vacuum chamber.
  • the control unit can control the driving device to start, drive the upper vacuum chamber to move upward at the third speed, and separate from the lower vacuum chamber, thereby opening the vacuum chamber. It should be noted that the third speed is greater than the aforementioned second speed. The third speed can be set based on experience.
  • Step 904 whether the upper vacuum chamber rises up to the set number of steps, if yes, end, otherwise go to step 903.
  • the control unit can determine whether the upper vacuum chamber rises to the set number of steps, which is equivalent to determining whether the upper vacuum chamber rises to the initial position.
  • the process of automatic vacuuming and plastic packaging shown in FIG. 6 can be completed by one-key operation through the control buttons on the refrigerator.
  • the control panel of the refrigerator shown in Figure 10 can be realized by the user through the "vacuum plastic packaging" button.
  • the user clicks the "vacuum plastic packaging” button it is equivalent to issuing a vacuum packaging instruction, and the input unit can receive it
  • the vacuum packaging instruction issued by the user is sent to the control unit to realize the process of automatic vacuuming and plastic packaging as shown in FIG. 6.
  • the above-mentioned input unit may also receive a sealing instruction issued by the user.
  • the control unit controls the driving device to start, so that the upper vacuum chamber and the lower vacuum chamber perform the first The first-stage descent and the second-stage descent clamp the storage bag in the refrigerator and control the plastic sealing part to heat and plastic seal the storage bag.
  • FIG. 10 is a schematic diagram of a control panel of a refrigerator provided by some embodiments of the present disclosure.
  • the sealing instruction issued by the user can be realized through the "seal" button on the control panel of the refrigerator as shown in FIG. 10.
  • the input unit can receive the sealing instruction issued by the user and send it to the control unit to realize the lowering process of the upper vacuum chamber as shown in FIG. 7 and the plastic sealing process in the vacuuming plastic sealing process shown in FIG. 8.
  • the specific steps have been described in detail in the above embodiments, and will not be repeated here.
  • the input unit may also receive a manual vacuuming instruction issued by the user.
  • the control unit determines whether the upper vacuum chamber and the lower vacuum chamber will hold the storage bag. Clamp, if yes, control the vacuum pump to start vacuuming the vacuum area, and control the vacuum pump to stop vacuuming the vacuum area after the vacuum pump is started for a set time or the input unit fails to receive the manual vacuum instruction; if not , Control the driving device to start, make the upper vacuum chamber and the lower vacuum chamber perform the first stage and the second stage of lowering respectively to clamp the storage bag in the refrigerator, and then control the vacuum pump to start to vacuum the vacuum area, and start the vacuum pump After the set time or the input unit fails to receive the manual vacuuming instruction, the vacuum pump is controlled to stop vacuuming the vacuuming area.
  • the vacuum pump startup setting time can be set based on experience, for example, it can be set for several seconds or tens of seconds. During the vacuuming process, the user needs to judge the vacuum degree of the vacuum
  • the manual vacuuming instruction issued by the user can be realized by the "manual vacuuming" button on the control panel of the refrigerator as shown in FIG. 10.
  • the input unit can receive the manual vacuuming instruction issued by the user and send it to the control unit to realize the manual vacuuming process.
  • the user can click the "Manual Vacuum” button to vacuum according to the degree of vacuum in the storage bag.
  • the "Manual Vacuum” button can be set to automatically pump for a few seconds after pressing it once, and then press it again, until the user thinks that the vacuum is complete. Or the user can keep pressing the "manual vacuuming" button.
  • the control unit Before performing manual vacuuming, the control unit also needs to determine whether the upper vacuum chamber and the lower vacuum chamber clamp the storage bag. If not, it needs to perform the lowering process of the upper vacuum chamber shown in FIG. 7 first.
  • control unit may also receive the sealing instruction issued by the user, and then control the plastic sealing part to heat and plastic seal the storage bag. It is equivalent to that after the user manually vacuums himself, he can also click the "seal" button on the control panel in Figure 10, which is equivalent to issuing a sealing instruction, and the input unit can receive the sealing instruction issued by the user and send it to The control unit, since the upper vacuum chamber and the lower vacuum chamber have clamped the storage bag during the manual vacuuming process, here the control unit only executes the plastic sealing process in the vacuum plastic sealing process shown in Figure 8. There is no need to perform the lowering process of the upper vacuum chamber shown in FIG. 7.
  • the above-mentioned input unit can also receive a stop instruction issued by the user.
  • the control unit controls the vacuum pump to stop vacuuming the vacuum area or controls the plastic sealing section to stop heating the plastic sealing and control
  • the driving device is activated to raise the upper vacuum chamber to the initial position at the third speed.
  • the stop instruction issued by the user can be implemented by the "stop" button on the control panel of the refrigerator as shown in FIG. 10.
  • the input unit can receive the stop instruction issued by the user, and send it to the control unit, so as to realize the deflation process as shown in FIG. 9.
  • the vacuuming process is in progress, if the user believes that the vacuuming packaging device determines that the vacuuming is abnormal, the user can click the "stop" button to end the vacuuming process in advance.
  • the aforementioned keys may be physical keys or touch keys, which are not limited in the embodiments of the present disclosure.
  • the refrigerator may include: a vacuum packaging device, a control unit, and an input unit.
  • the vacuum packaging device includes: a lower vacuum chamber fixed on the door body, and an upper vacuum chamber that moves up and down under the action of a driving device, and the upper vacuum chamber After docking with the lower vacuum chamber, a vacuuming zone is formed, the vacuuming zone is connected to the vacuum pump, and also includes a plastic sealing part, which is used for heating and plastic sealing the storage bag.
  • the input unit is used to receive the vacuum packaging instruction issued by the user, and the control unit is used to control the driving device to start after the input unit receives the vacuum packaging instruction issued by the user, so that the upper vacuum chamber and the lower vacuum chamber perform the first The stage descent and the second stage descent clamp the storage bag in the refrigerator, and then control the vacuum pump to start vacuuming the vacuum area.
  • control the plastic sealing part When the pressure value in the vacuum area meets the preset conditions, control the plastic sealing part to perform Heating and molding.
  • the input unit receives various control instructions issued by the user, and then the control unit controls the vacuum packaging device to execute the corresponding control instructions, so that the storage bag in the refrigerator can be automatically vacuumed, so that the food in different areas of the refrigerator can be vacuumed. They are all stored in storage bags, and no specific area is required for storage, so that the ingredients in other areas of the refrigerator can be stored fresh.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Vacuum Packaging (AREA)

Abstract

公开公开了一种冰箱，该冰箱包括真空封装装置、控制单元、输入单元，输入单元，用于接收真空封装指令，控制单元，用于在输入单元接收到真空封装指令后，控制驱动装置启动，使上真空腔向下真空腔分别进行第一阶段下降和第二阶段下降以使冰箱中的储物袋夹紧，再控制真空泵启动对抽真空区抽真空，在抽真空区中的压力值符合预设条件时，控制塑封部对储物袋进行加热塑封。

Description

一种冰箱
本申请要求在2019年8月16日提交中国专利局、申请号为201910757477.7、公开名称为“一种冰箱”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。
技术领域
本公开涉及公开冰箱技术领域，尤其涉及一种冰箱。
背景技术
保鲜技术为近年来冰冷行业重点关注及开发的技术。从技术分类来看，主要可分为食材相关的温度、湿度、气体及微生物等的控制，其中对于温湿度等研究较为深入。近年来，气体调节技术逐渐从食品生产行业扩散到家电行业。其主要目的是抑制食品的自我呼吸以及微生物和的呼吸作用，因而对于氧气的控制技术就成为重要的措施。降低氧气浓度的最直接便捷的方式即是真空技术，因此真空包装技术及真空包装机应运而生。其是以特定包装物包装食物，再通过负压将特定包装物内的空气抽走，再进行密封，以延长食品保鲜期是相对简便、并且效果较好的一种方式。通常的，在冰箱上实现的真空包装技术，主要是在冰箱内设置密封抽屉，通过设置在抽屉外侧的真空泵进行抽真空处理，使得抽屉保持负压状态。但是这种方式只能对抽屉内的食材进行抽真空，无法对冰箱其他区域的食材起到作用，也就无法对其他区域的食材起到保鲜作用。
发明内容
本公开一些实施例提供了一种冰箱，包括：真空封装装置、控制单元、输入单元，真空封装装置包括：固定于门体上的下真空腔，以及在驱动装置作用下上下移动的上真空腔，上真空腔与下真空腔对接后形成抽真空区，抽真空区连通真空泵，还包括塑封部，塑封部用于对储物袋进行加热塑封。输入单元，用于接收用户下发的真空封装指令，控制单元，用于在输入单元接收到用户下发的真空封装指令后，控制驱动装置启动，使上真空腔向下真空腔分别进行第一阶段下降和第二阶段下降将冰箱中的储物袋夹紧，再控制真空泵启动对抽真空区抽真空，在抽真空区中的压力值符合预设条件时，控制塑封部对储物袋进行加热塑封。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本公开一些实施例提供的一种真空封装装置的结构示意图；
图2为本公开一些实施例提供的一种冰箱的示意图；
图3为本公开一些实施例提供的一种冰箱的示意图；
图4为本公开一些实施例提供的一种真空封装装置的剖面示意图；
图5为本公开一些实施例提供的一种真空封装装置的示意图；
图6为本公开一些实施例提供的一种抽真空塑封的流程示意图；
图7为本公开一些实施例提供的一种下真空腔下降的流程示意图；
图8为本公开一些实施例提供的一种抽真空塑封的流程示意图；
图9为本公开一些实施例提供的一种泄气的流程示意图；
图10为本公开一些实施例提供的一种冰箱的控制面板的示意图。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本公开保护的范围。
图1示例性的示出了本公开实施例提供的一种冰箱的结构，该冰箱可以包括输入单元100、控制单元200和真空封装装置300。
该输入单元100可以与冰箱的控制面板上设置的各种控制按键连接，用于接收用户下发的各种控制指令，并将接收到的各种控制指令发送至控制单元200。
该控制单元200可以是控制器、处理器等具有控制功能的集成电路芯片，具体的可以为通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。该控制单元200在接收到输入单元100发送的用户下发的 各种控制指令后，控制真空封装装置300正在执行相应的控制操作。
需要说明的是，在具体实施的过程中，该控制单元200和输入单元100可以与该真空封装装置300集成在一起，也可以分别作为单独的部件安装于冰箱的不同的位置。
图2为本公开一些实施例提供的一种冰箱的示意图。参照图2，真空封装装置300可以设置于冰箱的冷藏门体401上，也可以设置于冷冻门体402上，由于冷藏门体401位于上侧，为了符合用户的使用习惯，通常优选设置于冷藏门体401上。
图3为本公开一些实施例提供的一种冰箱的示意图。如图3所示，,真空封装装置300包括第一部分11和第二部分12。冷藏门体401的冷藏门板4012上设有控制面板4011，也可以成为显示面板，为了便于用户操作。
图4为如图4所本公开一些实施例提供的空封装装置的剖面示意图。如图4所示，真空封装装置300可以包括：固定于门体上的下真空腔312，以及在驱动装置作用下上下移动的上真空腔311，该上真空腔311与下真空腔312对接后形成抽真空区310，该抽真空区310连通真空泵320。该真空封装装置300还可以包括塑封部330，该塑封部330用于对储物袋进行加热塑封。
在一些实施例中，如图4所示，上真空腔311可以位于上支座313上，下真空腔312可以位于下支座314上，上真空腔311向下真空腔312移动到位后，该上真空腔311和下真空腔312对接密封组成抽真空区310，控制单元200可以控制上支座313自动升降，实现上真空腔311和下真空腔312的锁紧与解锁， 从而实现自动真空封装，提高冰箱的智能化。其中，抽真空区310可以通过管路360与真空泵320连接，便于真空泵320对抽真空区310抽真空。
为了提高抽真空区310的密封性，在上述上真空腔311的外周设有第一密封槽315，下真空腔312的外周设有第二密封槽316，该第一密封槽315与第二密封槽316位置相对且内部设有密封圈317，设置在第一密封槽315和第二密封槽316内的两个密封圈317将该抽真空区310密封在内侧，实现了抽真空区310的可靠密封。
此外，在抽真空区310的外侧设有封装区331，该封装区331内设有相对设置的隔热垫332和塑封部330，示例的，塑封部330设置于上支座313下表面的凹槽内，隔热垫332则安装于下支座314上表面的凹槽内，当驱动装置驱动上支座313移动至与下支座314形成密封的抽真空区310后，封装区331内的隔热垫332抵靠在塑封部330上。当控制单元200控制真空泵320抽真空完成后，通过封装区331的塑封部330可以将储物袋快速塑封，根据塑封部330工作设定时间后，驱动装置带动上支座313上移，用户可抽出储物袋完成储物袋的塑封。
图5为本公开一些实施例提供的一种真空封装装置的示意图。如图5所示，真空封装装置300还可以包括压力感应装置340和泄压装置350。真空泵320和压力感应装置340通过管路360与抽真空区310连接。真空泵320用于对抽真空区310抽真空，压力感应装置340用于确定抽真空区310内的压力值是否符合预设条件，在确定符合预设条件之后，真空泵320停止抽真空。真空泵320用 于在控制单元200控制下对抽真空区310抽取真空，压力感应装置340用于实时感应抽真空区310内的压力值，并在抽真空区310内的压力值达到预设条件时，向控制单元200发送压力指令，以使控制单元200根据压力指令控制真空泵320停止工作。
其中，真空泵320、抽真空区310和压力感应装置340等各部分之间通过硅胶或其他材质的管路360连接，连接头需保持密封。真空泵320用于提供系统内的负压。压力感应装置340是通过三通阀连接到抽真空区310上，实时指示抽真空区310内的压力值。当抽真空区310内的压力值达到预设条件时，压力感应装置340将数据传输到控制单元200，控制单元200判断后，给出真空泵320命令，停止真空泵320工作，然后进行封口程序。
泄压装置350用于对抽真空区310进行泄压，并打开抽真空区310。泄压装置350通过三通与压力感应装置340和抽真空区310连接。当抽真空工作时，泄压装置350保持管路360及抽真空区310的密封状态。当抽真空及封口结束或者用户选择“停止程序后”时，控制单元200给出信号到泄压装置350，泄压装置350打开管路360的密封阀，使得外部大气通过管路360进入抽真空区310内，实现压力的解除。
上述塑封部330可以包括加热丝和压紧胶条，分别位于上真空腔311和下真空腔312的外侧。在确定抽真空区310内的压力值符合预设条件时，加热丝和压紧胶条对储物袋进行热熔式密封。
图6为本公开一些实施例提供的抽真空塑封的流程示意图，包括：
步骤601，输入单元接收真空封装指令。
输入单元可以接收用户下发的真空封装指令，该真空封装指令可以是用户通过冰箱上的控制按键下发的或是通过人机交互装置下发的，又或者是通过安装有与冰箱关联的应用程序的终端设备下发的。
步骤602，控制单元控制驱动装置启动，使上真空腔向下真空腔分别进行第一阶段下降和第二阶段下降将冰箱中的储物袋夹紧。
该控制单元控制驱动装置驱动上真空腔向下真空腔移动的过程可以分为两个阶段进行。具体的可以见如图7所示的流程，包括：
步骤701，上真空腔以第一速度进行第一阶段下降。
上真空腔在驱动装置的驱动下以第一速度向下真空腔运动，这是上真空腔快速下降的过程。
步骤702，判断上真空腔是否下降到第一预设距离，若是，则转入步骤703，若否，则转入步骤701。
上真空腔运动到第一预设距离后，就可以进行第二阶段的下降。
步骤703，上真空腔以第二速度进行第二阶段下降。
上真空腔在驱动装置的驱动下以第二速度向下真空腔运动，这是缓慢下降阶段，以保证上真空腔与下真空腔的密封性。
步骤704，判断上真空腔是否下降到第二预设距离，若是，则转入步骤705，否则转入步骤703。
上真空腔运动到第二预设距离后，就可以不用再下降。
步骤705，上真空腔停止下降，保持向下真空腔的压力，进入抽真空阶段。
上真空腔停止下降后，驱动装置停止驱动，但是保持输出不关闭，并保持上真空腔向下的压力，从而进入抽真空阶段进行抽真空。
需要说明的是，上述第一速度大于第二速度，第一预设距离、第二预设距离、第一速度和第二速度可以依据经验设置，该第一预设距离和第二预设距离可以通过控制电动马达的预设行进步数实现。
结合图4所示的结构，驱动装置可以驱动上支座以较高速向接近下支座的方向移动，直至上支座上第一密封槽内的密封圈与下支座上第二密封槽内的密封圈接触后，再以低速度向下支座运动直至密封圈达到设定变形量后停止。示例的，可以在起始阶段快速下降，当上下密封圈接触后，启动真空泵；提高抽真空封装效率；再以低转速大作用力使上支座向下运动直至密封圈达到设定变形量停止，从而可以提高抽真空区的密封性，避免抽真空区漏气导致抽真空过慢或无法抽真空的隐患。步骤603，控制单元控制真空泵启动对抽真空区抽真空，在抽真空区的压力值符合预设条件时，控制塑封部对储物袋进行加热塑封。
该预设条件可以为下述条件之中的至少一个，包括：压力值达到第一压力值；或抽真空时间达到预设抽真空时间或满足异常检测条件。异常检测条件可以为压力值达到第二压力值且预设时间后压力值变化小于第三压力值。其中，第一压力值大于第二压力值；第二压力值大于第三压力值。该第一压力值、第二压力值、第三压力值、预设抽真空时间和预设时间可以依据经验设置。
在一些实施方式中，抽真空装置300可以用于在确定抽真空区内的压力值 达到第一压力值或抽真空时间达到预设抽真空时间时，停止对抽真空区抽真空。并且该抽真空装置300还可以在抽真空的过程中确定抽真空区内的压力值达到第二压力值且预设时间内压力值变化小于第三压力值，确定抽真空出现异常，停止对抽真空区进行抽真空，并对抽真空区进行泄压，打开抽真空区。
当上真空腔与下真空腔接触将储物袋夹紧后，控制单元就可以执行抽真空塑封的流程，图8为本公开一些实施例提供的一种抽真空塑封的流程示意图。如图8所示，包括：
步骤801，真空封装装置确定抽真空区内的压力值是否达到第一压力值，若是，则转入步骤806，否则转入步骤802。
真空封装装置中的压力感应装置可以确定抽真空区内的压力值是否达到第一压力值，在确定达到第一压力值后，向控制单元发出压力指令，控制单元控制真空泵停止抽真空。
步骤802，控制单元确定抽真空时间是否达到预设抽真空时间，若是，则转入步骤806，否则转入步骤803。
控制单元可以确定抽真空时间是否达到预设抽真空时间，在确定达到预设抽真空时间，控制真空泵停止抽真空。
步骤803，真空封装装置确定抽真空区内的压力值是否达到第二压力值，若是，则转入步骤804，否则转入步骤801。
步骤804，真空封装装置确定预设时间后抽真空区内的压力值变化是否小于第三压力值，若是，则转入步骤805，否则转入步骤801。
真空封装装置可以在通过压力感应装置感应抽真空区内的压力值达到第二压力值且预设时间后抽真空区内压力值变化小于第三压力值时，确定抽真空过程出现异常，例如压条密封不好，或进异物，封口褶皱，袋子破裂等问题，需要提前结束抽真空。此时可以向控制单元发出异常指令，控制单元可以控制真空泵停止抽真空。
步骤805，停止抽真空，对抽真空区进行泄压，打开抽真空区。
真空封装装置确定抽真空出现异常后，向控制单元发出异常指令，控制单元可以控制真空泵停止抽真空，并控制真空封装装置中的泄压装置对抽真空区进行泄压。
步骤806，停止抽真空，进行封口加热。
步骤807，封口加热运行达到设定时间后，延时第一时间进入泄气阶段。
控制单元控制塑封部对储物袋进行加热塑封达到加热时间后，就可以在延时第一时间后，进入泄气阶段。该设定时间和第一时间可以依据经验设置。
当控制单元在控制所述塑封部对储物袋进行加热塑封设定时间后，控制驱动装置启动，使上真空腔以第三速度上升至初始位置。该流程可以称为是泄气流程。图9为本公开一些实施例提供的一种泄气的流程示意图。如包括：
步骤901，控制单元控制泄气装置进行泄气操作。
控制单元控制泄气装置打开阀门进行管路泄气。
步骤902，控制单元确定泄气是否超过泄气时间，若是，则转入步骤903，否则转入步骤901。该泄气时间可以依据经验设置。
步骤903，控制单元控制驱动装置启动，使上真空腔上升。
控制单元可以控制驱动装置启动，驱动上真空腔以第三速度向上运动，与下真空腔分开，从而打开真空腔。需要说明的是，该第三速度大于上述第二速度。该第三速度可以依据经验设置。
步骤904，上真空腔上升是否达到设定步数，若是，则结束，否则转入步骤903。
控制单元可以判断上真空腔上升是否达到设定步数，也相当于确定上真空腔是否上升至初始位置。
需要说明的是，上述图6所示自动抽真空塑封的流程，可以通过冰箱上的控制按键实现一键操作完成。如图10所示的冰箱的控制面板，用户可以通过“抽真空塑封”按键来实现，当用户点击该“抽真空塑封”按键时，相当于下发了真空封装指令，输入单元就可以接收到用户下发的真空封装指令，并发送给控制单元，以实现如图6所示的自动抽真空塑封的流程。
在一些实施例中，上述输入单元还可以接收用户下发的封口指令，控制单元在输入单元接收到用户下发的封口指令之后，控制驱动装置启动，使上真空腔向下真空腔分别进行第一阶段下降和第二阶段下降将冰箱中的储物袋夹紧并控制塑封部对储物袋进行加热塑封。
图10为本公开一些实施例提供的一种冰箱的控制面板的示意图。在一些实施例中，用户下发的封口指令可以通过如图10所示的冰箱的控制面板上的“封口”按键来实现，当用户点击该“封口”按键时，相当于下发了封口指令，输入 单元可以接收到用户下发的该封口指令，并发送给控制单元，以实现如图7所示的上真空腔下降的流程以及图8所示的抽真空塑封流程中的塑封流程。具体步骤已在上述实施例中详细描述，此处不再赘述。
在一些实施例中，输入单元还可以接收用户下发的手动抽真空指令，控制单元在输入单元接收到用户下发的手动抽真空指令之后，判断上真空腔和下真空腔是否将储物袋夹紧，若是，控制真空泵启动对抽真空区抽真空，并在真空泵启动设定时间后或输入单元接收不到手动抽真空指令后，控制真空泵停止对所述抽真空区抽真空处理；若否，控制驱动装置启动，使上真空腔向下真空腔分别进行第一阶段下降和第二阶段下降将冰箱中的储物袋夹紧，再控制真空泵启动对抽真空区抽真空，并在真空泵启动设定时间后或输入单元接受不到手动抽真空指令后，控制真空泵停止对抽真空区抽真空处理。该真空泵启动设定时间可以依据经验设置，例如可以设置几秒或几十秒，在抽真空的过程中，用户需要自己判断抽真空区的真空度。
在一些实施例中，用户下发的手动抽真空指令可以通过如图10所示的冰箱的控制面板上的“手动抽真空”按键来实现，当用户点击该“手动抽真空”按键时，相当于下发了手动抽真空指令，输入单元可以接收到用户下发的该手动抽真空指令，并发送给控制单元，以实现手动抽真空的流程。用户在具体实施过程中，可以自己根据储物袋中的真空度，自行点击“手动抽真空”按键进行抽真空。比如，“手动抽真空”按键可以设置为按一次自动抽几秒，然后再按一次，一直到用户认为抽真空完成为止。或者用户可以一直按压该“手动抽真空”按键，一直 按压时，会一直抽真空，当用户停止按压该“手动抽真空”按键时，会停止抽真空，从而实现用户手动抽真空操作。当然，控制单元在执行手动抽真空之前，还需要判断上真空腔和下真空腔是否将储物袋夹紧，如果没有，还需要先执行图7所示的上真空腔下降的流程。
进一步的，控制单元在执行完手动抽真空指令之后，还可以接收用户下发的封口指令，然后控制塑封部对储物袋进行加热塑封。相当于，用户在自己手动抽真空之后，还可以点击图10的控制面板上的“封口”按键，相当于下发了封口指令，输入单元可以接收到用户下发的该封口指令，并发送给控制单元，由于在手动抽真空的过程中，上真空腔和下真空腔已经将储物袋夹紧，因此在这里控制单元只执行图8所示的抽真空塑封流程中的塑封流程即可，无需再执行图7所示的上真空腔下降的流程。
此外，上述输入单元还可以接收用户下发的停止指令，控制单元在确定输入单元接收到用户下发的停止指令之后，控制真空泵停止对抽真空区抽真空或控制塑封部停止加热塑封，并控制驱动装置启动，使上真空腔以第三速度上升至初始位置。
在一些实施例中，用户下发的停止指令可以通过如图10所示的冰箱的控制面板上的“停止”按键来实现，当用户点击该“停止”按键时，相当于下发了停止指令，输入单元可以接收到用户下发的该停止指令，并发送给控制单元，以实现如图9所示的泄气流程。当抽真空流程进行过程中用户认为此时抽真空封装装置确定出现抽真空异常的情况下，用户通过点击该“停止”按键来实现提前结 束抽真空的流程。具体步骤已在上述实施例中详细描述，此处不再赘述。
上述按键可以是实体按键，也可以是触摸按键，本公开实施例对此不作限定。
上述实施例表明，冰箱可以包括：真空封装装置、控制单元、输入单元，真空封装装置包括：固定于门体上的下真空腔，以及在驱动装置作用下上下移动的上真空腔，上真空腔与下真空腔对接后形成抽真空区，抽真空区连通真空泵，还包括塑封部，塑封部用于对储物袋进行加热塑封。输入单元，用于接收用户下发的真空封装指令，控制单元，用于在输入单元接收到用户下发的真空封装指令后，控制驱动装置启动，使上真空腔向下真空腔分别进行第一阶段下降和第二阶段下降将冰箱中的储物袋夹紧，再控制真空泵启动对抽真空区抽真空，在抽真空区中的压力值符合预设条件时，控制塑封部对储物袋进行加热塑封。通过输入单元接收用户下发的各种控制指令，再由控制单元控制真空封装装置执行相应的控制指令，从而可以对冰箱内的储物袋实现自动抽真空操作，从而可以将冰箱不同区域的食材都通过储物袋进行存储，无需特定区域进行存储，使得冰箱其他区域的食材都可以保鲜存储。
尽管已描述了本公开的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开范围的所有变更和修改。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (10)

  1. 一种冰箱，，包括：
    真空封装装置，包括：固定于门体上的下真空腔，在驱动装置作用下上下移动的上真空腔，，以及塑封部，其中所述上真空腔与所述下真空腔对接后形成抽真空区，所述抽真空区连通真空泵，所述塑封部用于对储物袋进行加热塑封；
    输入单元，用于接收用户下发的真空封装指令；
    控制单元，用于在所述输入单元接收到所述用户下发的真空封装指令后，控制所述驱动装置启动，使所述上真空腔向下真空腔分别进行第一阶段下降和第二阶段下降以使所述冰箱中的储物袋夹紧，之后控制所述真空泵启动以对所述抽真空区抽真空，在所述抽真空区的压力值符合预设条件时，控制所述塑封部对所述储物袋进行加热塑封。
  2. 如权利要求1所述的冰箱，其特征在于，所述控制单元还用于在控制对所述储物袋进行加热塑封设定时间后，控制所述抽真空区压力恢复至大气压；再控制所述驱动装置启动，使所述上真空腔上升至初始位置。
  3. 如权利要求1所述的冰箱，其特征在于，所述输入单元还用于接收封口指令；
    所述控制单元还用于在所述输入单元接收到封口指令之后，控制所述驱动装置启动，使所述上真空腔向下真空腔分别进行第一阶段下降和第二阶段下降以使所述冰箱中的储物袋夹紧并控制所述塑封部对所述储物袋进行加热塑封。
  4. 如权利要求1所述的冰箱，其特征在于，所述输入单元还用于接收手动抽真空指令；
    所述控制单元还用于在所述输入单元接收到手动抽真空指令之后，判断所述上真空腔和所述下真空腔是否将所述储物袋夹紧，若是，控制所述真空泵启动对所述抽真空区抽真空，并在真空泵启动设定时间后或所述输入单元接受不到手动抽真空指令后，控制所述真空泵停止对所述抽真空区抽真空处理；若否，控制所述驱动装置启动，使所述上真空腔向下真空腔分别进行第一阶段下降和第二阶段下降将所述冰箱中的储物袋夹紧；再控制所述真空泵启动对所述抽真空区抽真空，并在真空泵启动设定时间后或所述输入单元接受不到手动抽真空指令后，控制所述真空泵停止对所述抽真空区抽真空处理。
  5. 如权利要求4所述的冰箱，其特征在于，所述输入单元还用于接收封口指令；所述控制单元控制所述真空泵停止后并在所述输入单元接收封口指令之后，控制所述塑封部对所述储物袋进行加热塑封。
  6. 如权利要求1至5任一项所述的冰箱，其特征在于，所述控制单元具体用于：
    控制所述上真空腔以第一速度向所述下真空腔进行第一阶段下降；
    在确定所述上真空腔下降到第一预设距离后，控制所述上真空腔以第二速度向所述下真空腔进行第二阶段下降，直到控制所述上真空腔和所述下真空腔将所述储物袋的封口夹紧或控制所述上真空腔以所述第二速度下降到第二预设距离为止；
    其中，所述第一速度大于所述第二速度。
  7. 如权利要求6所述的冰箱，其特征在于，所述控制单元还用于在控制所述塑封部对所述储物袋进行加热塑封设定时间后，控制所述驱动装置启动，使所述上真空腔以第三速度上升至初始位置。
  8. 如权利要求6所述的冰箱，其特征在于，所述控制装单元具体用于：
    在确定所述抽真空区的压力值达到第一压力值或抽真空时间达到预设抽真空时间时，控制所述塑封部对所述储物袋进行加热塑封。
  9. 如权利要求8所述的冰箱，其特征在于，所述控制单元还用于：
    抽真空的过程中，在所述抽真空区的压力值达到第二压力值且预设时间内压力值变化小于第三压力值时，确定抽真空出现异常，控制所述真空泵停止对所述抽真空区进行抽真空；
    其中，所述第一压力值大于所述第二压力值；所述第二压力值大于所述第三压力值。
  10. 如权利要求6所述的冰箱，其特征在于，所述输入单元还用于接收用户下发的停止指令；
    所述控制单元还用于在所述输入单元接收到用户下发的停止指令之后，控制所述真空泵停止对所述抽真空区抽真空或控制所述塑封部停止加热塑封，并控制所述驱动装置启动，使所述上真空腔以第三速度上升至初始位置。
PCT/CN2020/094493 2019-08-16 2020-06-05 一种冰箱 WO2021031658A1 (zh)

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