CN115468366B - Vacuum storage device, air extraction control method and refrigerator - Google Patents

Vacuum storage device, air extraction control method and refrigerator Download PDF

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Publication number
CN115468366B
CN115468366B CN202110652863.7A CN202110652863A CN115468366B CN 115468366 B CN115468366 B CN 115468366B CN 202110652863 A CN202110652863 A CN 202110652863A CN 115468366 B CN115468366 B CN 115468366B
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China
Prior art keywords
air extraction
vacuum pump
storage
air
vacuum
Prior art date
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CN202110652863.7A
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Chinese (zh)
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CN115468366A (en
Inventor
吕鹏
张�浩
昝朝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Chongqing Haier Refrigeration Electric Appliance Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Chongqing Haier Refrigeration Electric Appliance Co Ltd
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Publication date
Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd, Chongqing Haier Refrigeration Electric Appliance Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN202110652863.7A priority Critical patent/CN115468366B/en
Priority to PCT/CN2022/095655 priority patent/WO2022257787A1/en
Publication of CN115468366A publication Critical patent/CN115468366A/en
Application granted granted Critical
Publication of CN115468366B publication Critical patent/CN115468366B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00Charging, supporting, and discharging the articles to be cooled
    • F25D25/005Charging, supporting, and discharging the articles to be cooled using containers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00Charging, supporting, and discharging the articles to be cooled
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/003Arrangement or mounting of control or safety devices for movable devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/005Mounting of control devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04Treating air flowing to refrigeration compartments
    • F25D2317/043Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00Control issues
    • F25D2600/06Controlling according to a predetermined profile

Abstract

The invention provides an air extraction control method of a vacuum storage device, which comprises an air extraction base and one or more storage boxes, wherein each storage box is respectively provided with a first air extraction opening, a vacuum pump is further arranged in the air extraction base, a storage space is defined in each storage box, and an air extraction opening is formed in each storage box, and the vacuum pump sequentially extracts part or all of air in the storage space through the first air extraction openings and the air extraction openings; and a touch pad for receiving a touch signal is further arranged in the air extraction base, wherein the method comprises the following steps: detecting whether the touch control board receives a touch control signal or not; and when the touch signal is detected to be received, controlling the vacuum pump to be started, and starting to exhaust air. The vacuum storage device has simple air extraction control logic, easy operation and high control efficiency. The invention also provides a vacuum storage device and a refrigerator.

Description

Vacuum storage device, air extraction control method and refrigerator
Technical Field
The invention relates to the technical field of refrigeration and freezing, in particular to a vacuum storage device, an air extraction control method and a refrigerator.
Background
Along with the improvement of the living standard of people, the demands of consumers on the refrigerator are also higher, and in order to improve the fresh-keeping performance of the refrigerator, the refrigerator with the vacuumizing function appears in the prior art and is favored by the consumers. The principle of the refrigerator is that a certain compartment of the refrigerator is vacuumized by utilizing a vacuum pump, so that the problem that food materials are inconvenient to take and put exists, and the effective use volume of the refrigerator is reduced due to unreasonable component arrangement of a vacuum fresh-keeping part.
Disclosure of Invention
An object of the present invention is to overcome at least one of the drawbacks of the prior art and to provide a vacuum storage device for convenient storage of food materials.
A further object of the present invention is to provide a vacuum storage device which is easy to evacuate and has a good fresh-keeping effect.
Particularly, the invention provides an air extraction control method of a vacuum storage device, the vacuum storage device comprises an air extraction base and one or more storage boxes, wherein one or more placing grooves are formed on the air extraction base, a first air extraction opening is respectively formed in each placing groove, a vacuum pump is further arranged in the air extraction base, a storage space is defined in each storage box, the air extraction openings are formed in each storage box, and part or all of air in the storage space is extracted by the vacuum pump sequentially through the first air extraction openings and the air extraction openings; and the air extraction base is internally provided with a touch pad for receiving touch signals, wherein the method comprises the following steps:
detecting whether a touch signal is received by a touch pad;
when the touch signal is detected to be received, the vacuum pump is controlled to be started, and air suction is started.
Optionally, before or after the step of controlling the vacuum pump to be turned on, the method further comprises:
the number of storage boxes on the air extraction base is obtained.
Optionally, after the step of obtaining the number of storage boxes on the suction base, the method further comprises:
calculating the product of the number of the storage boxes and a preset single box air extraction time threshold value to obtain a target air extraction time;
judging whether the opening time of the vacuum pump is more than or equal to the target air extraction time length;
and when the opening time of the vacuum pump is more than or equal to the target air extraction time, controlling the vacuum pump to be stopped, and stopping air extraction.
Optionally, when the opening time of the vacuum pump is less than the target air extraction time, detecting whether the touch control signal is received by the touch control panel again;
if not, controlling the vacuum pump to continuously pump air until the opening time is more than or equal to the target air pumping duration;
if yes, the number of the storage boxes on the air extraction base is obtained again.
Optionally, after the step of controlling the vacuum pump to shut down, the method further comprises:
detecting whether the touch control signal is received by the touch control plate again;
when the touch signal is not detected to be received, judging whether the storage time of the storage box is more than or equal to the sum of the target air extraction time length and a preset vacuum degree maintaining time length threshold value; if yes, controlling the vacuum pump to be restarted;
or alternatively
When the touch signal is not detected to be received, judging whether the shutdown time of the vacuum pump is greater than or equal to a preset vacuum degree maintaining time threshold; if yes, the vacuum pump is controlled to be restarted.
Optionally, each placing groove is also provided with a micro switch respectively; the step of obtaining the number of the storage boxes on the air extraction base comprises the following steps:
and acquiring the number of the triggered micro switches to obtain the number of the storage boxes on the air extraction base.
Optionally, a group of magnetic sensitive switches are further arranged at each placement groove, and a group of magnets are arranged at the bottom wall of each storage box corresponding to the magnetic sensitive switches; the step of obtaining the number of the storage boxes on the air extraction base comprises the following steps:
and obtaining the number of matched groups of the magneto-sensitive switch and the magnet to obtain the number of storage boxes on the air extraction base.
The invention also provides a vacuum storage device, which comprises:
an air extraction base;
a storage box; and
the controller comprises a memory and a processor, wherein the memory stores a machine executable program, and the machine executable program realizes the air extraction control method when being executed by the processor.
Optionally, the air extraction base is provided with a touch button on the outer side of the front wall, and a touch pad on the inner side of the front wall, and is configured to receive a touch signal when the touch button is touched.
The invention also provides a refrigerator which is characterized by comprising the vacuum storage device.
According to the vacuum storage device, the plurality of placing grooves are formed on the air extraction base, the first air extraction openings are respectively formed in each placing groove, the vacuum pump is further arranged in the air extraction base, the storage space is defined in each storage box, the air extraction openings are formed in each storage box, and the vacuum pump sequentially extracts part or all of air in the storage space through the first air extraction openings and the air extraction openings, so that the same air extraction base can be suitable for various storage boxes, the application range is wider, food can be conveniently taken into the storage boxes, and the use experience of users is improved; the touch control board for receiving the touch control signal is arranged in the air extraction base, and is arranged to control the vacuum pump to be started when the touch control board is detected to receive the touch control signal, so that air extraction is started, the air extraction control logic of the vacuum storage device is simple, the operation is easy, and the control efficiency is high.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
fig. 1 is a schematic view of a door liner of a refrigerator and a vacuum storage device having one embodiment of the present invention.
Fig. 2 is an exploded schematic view of a vacuum storage device in accordance with one embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of the vacuum storage device of fig. 2.
Fig. 4 is a schematic view of the suction base of the vacuum storage device of fig. 2.
Fig. 5 is a schematic cross-sectional view of a portion of the cover of the vacuum storage device of fig. 2.
Fig. 6 is an exploded view of the cover of the vacuum storage device of fig. 2.
Fig. 7 is an exploded view of a vacuum storage device in accordance with another embodiment of the present invention.
Fig. 8 is a flow chart of a method for controlling air suction of a vacuum storage device according to an embodiment of the present invention.
Fig. 9 is a schematic view of a part of the components of the vacuum storage device shown in fig. 8.
Fig. 10 is a detailed flow chart of the air extraction control method of the vacuum storage device shown in fig. 8.
Detailed Description
Fig. 1 is a schematic view of a door liner of a refrigerator and a vacuum storage device 200 having a vacuum storage device 200 in accordance with one embodiment of the present invention. Fig. 2 is an exploded schematic view of a vacuum storage device 200 in accordance with one embodiment of the present invention. Fig. 3 is a schematic cross-sectional view of the vacuum storage device 200 shown in fig. 2. Fig. 4 is a schematic view of the suction base 300 of the vacuum storage device 200 of fig. 2. Fig. 8 is a flow chart of a method for controlling the suction of the vacuum storage device 200 according to an embodiment of the present invention. Fig. 9 is a schematic view of the components of the vacuum storage device 200 shown in fig. 8. Fig. 10 is a detailed flowchart of the air extraction control method of the vacuum storage device 200 shown in fig. 8.
Embodiments of the present invention provide a refrigerator that may generally include a cabinet, a door, and a vacuum storage apparatus 200. The box body is internally limited with at least one storage compartment with an open front side, and a plurality of storage compartments are usually arranged, such as a refrigerating compartment, a freezing compartment, a temperature changing compartment and the like. The number and the functions of the specific storage compartments can be configured according to the preset requirements, and the preservation temperature of the refrigerating compartment can be 2-9 ℃ or 4-7 ℃; the storage temperature of the freezing chamber can be-22 to-14 ℃. The temperature changing chamber can be adjusted according to the requirements to store proper foods or be used as a fresh-keeping storage chamber. The storage compartment may be provided with cooling by a compression refrigeration system. The vacuum storage device 200 is arranged at the inner side of the door body, and the air extraction base 300 is fixed with the door liner 120 of the door body. The vacuum storage device 200 can provide a sealed space for precious food materials (such as ginseng, sea cucumber, medlar, tonic materials, seasonings, etc.), and can reduce oxidative deterioration and prevent food material from being tainted by vacuumizing in the sealed space. Meanwhile, the vacuum storage device 200 is arranged on the inner side of the door body, so that a user can conveniently take the food at any time without going to the deep position of the box body to take and put the food. As shown in fig. 1, the inside of the door liner 120 is provided with a hanging lug 121, the air extraction base 300 of the vacuum storage device 200 is provided with a hanging groove 314, and the vacuum storage device 200 is arranged inside the door body by matching the hanging groove 314 with the hanging lug 121.
As shown in fig. 2 and 9, a vacuum storage device 200 according to an embodiment of the present invention generally includes: a suction base 300 and one or more storage bins 400. One or more placement grooves 311 are formed on the suction base 300, and each placement groove 311 is respectively formed with a first suction opening 310. A vacuum pump 302 is also disposed within the pumping base 300. Each storage box 400 defines a storage space 410 therein and is formed with an extraction opening 420. The vacuum pump 302 sequentially pumps part or all of the air in the storage space 410 through the first pumping port 310 and the pumping port 420. And, a touch pad 306 for receiving a touch signal is further disposed in the pumping base 300.
The air extraction control method of the vacuum storage device 200 of the embodiment of the invention comprises the following steps:
s102: detecting whether the touch pad 306 receives a touch signal;
s104: when the touch signal is detected to be received, the vacuum pump 302 is controlled to be started, and air suction is started.
According to the vacuum storage device 200 of the embodiment of the invention, the plurality of placing grooves 311 are formed on the air extraction base 300, the first air extraction openings 310 are respectively formed in each placing groove 311, the vacuum pump 302 is further arranged in the air extraction base 300, the storage space 410 is defined in each storage box 400, the air extraction openings 420 are formed in each storage box 400, and the vacuum pump 302 sequentially extracts part or all of the air in the storage space 410 through the first air extraction openings 310 and the air extraction openings 420, so that the same air extraction base 300 can be suitable for various storage boxes 400, the application range is wider, food can be conveniently taken from the storage boxes 400, and the use experience of users is improved; through integrating a vacuum pump 302 in the base 300 of bleeding, realize the simultaneous bleeding to a plurality of storing boxes 400 for the constitution of part of bleeding is simple, and through setting up the touch pad 306 that is used for receiving the touch signal in the base 300 of bleeding, and set up to when detecting that touch pad 306 received the touch signal, control vacuum pump 302 was opened, begin to bleed, make the control logic of bleeding of this vacuum storing device 200 simple, easy operation, control efficiency is high.
The vacuum storage device 200 according to the embodiment of the present invention further includes: the controller 305 includes a memory 352 and a processor 351, wherein the memory 352 stores a machine executable program 353, and the machine executable program 353 when executed by the processor 351 implements the pumping control method described above. Referring to fig. 4, the pumping base 300 is provided with a touch button 360 at an outer side of a front wall thereof, and a touch pad 306 at an inner side of the front wall thereof, and is configured such that the touch pad 306 receives a touch signal when the touch button 360 is touched.
In some embodiments, before or after the step of controlling the vacuum pump 302 to be turned on, the method for controlling the air suction of the vacuum storage device 200 according to the embodiment of the present invention further includes: the number of cartridges 400 on the suction base 300 is obtained.
The embodiment of the invention provides two methods for obtaining the number of the storage boxes 400 on the air extraction base 300, which have simple structure, easy configuration and high accuracy. In some embodiments, as shown in fig. 3, a set of magnetically sensitive switches 307 are further disposed at each placement groove 311, and a set of magnets 405 are disposed at the bottom wall of each storage box 400 corresponding to the magnetically sensitive switches 307; the step of obtaining the number of the storage boxes 400 on the suction base 300 includes: the number of matched sets of the magnetically sensitive switch 307 and the magnet 405 is obtained to obtain the number of storage boxes 400 on the air extraction base 300. In other embodiments, as shown in fig. 7, a micro switch 308 is further disposed at each placement groove 311; the step of obtaining the number of the storage boxes 400 on the suction base 300 includes: the number of micro switches 308 triggered is obtained to obtain the number of storage boxes 400 on the air extraction base 300.
In some embodiments, after the step of obtaining the number of storage boxes 400 on the suction base 300, the suction control method of the vacuum storage device 200 according to the embodiment of the present invention further includes:
calculating the product of the number of the storage boxes 400 and a preset single box air extraction time length threshold value to obtain a target air extraction time length;
judging whether the opening time of the vacuum pump 302 is more than or equal to the target air extraction time length;
when the opening time of the vacuum pump 302 is greater than or equal to the target air extraction time, the vacuum pump 302 is controlled to be turned off, and air extraction is stopped.
The preset single-box air extraction time threshold, that is, the air extraction time required for reaching the target vacuum degree in the storage box 400, may be, for example, 3min, 5min, or 7min.
When the on time of the vacuum pump 302 is less than the target air extraction time, the air extraction control method of the vacuum storage device 200 according to the embodiment of the invention further includes:
detecting whether the touch signal is received by the touch pad 306 again;
if not, controlling the vacuum pump 302 to continue pumping until the opening time is greater than or equal to the target pumping duration;
if so, the number of the storage boxes 400 on the air extraction base 300 is re-acquired, a new target air extraction duration is determined based on the re-acquired number of the storage boxes 400, and the vacuum pump 302 is further controlled to continue air extraction until the opening time is greater than or equal to the new target air extraction duration.
When the vacuum storage device 200 of the embodiment of the invention is used, after a user places the storage box 400 on the air extraction base 300, the user touches the touch button 360 on the front side of the air extraction base 300, the touch pad 306 receives the touch signal, and the vacuum pump 302 starts air extraction. In the process of exhausting the vacuum pump 302, if the user adds the storage boxes 400 to the exhausting base 300 again, the user touches the touch button 360 at the front side of the exhausting base 300 again at this time, that is, the touch pad 306 receives the touch signal again, and in order to ensure the complete exhausting, the number of the storage boxes 400 on the exhausting base 300 needs to be rechecked, so that the number of the re-acquired storage boxes 400 can be used to determine the new target exhausting duration.
In some embodiments, after the step of controlling the vacuum pump 302 to be turned off, the method for controlling the air suction of the vacuum storage device 200 according to the embodiment of the present invention further includes:
detecting whether the touch signal is received by the touch pad 306 again;
when the touch signal is not detected to be received, judging whether the storage time of the storage box 400 is greater than or equal to the sum of the target air extraction time length and the preset vacuum degree maintaining time length threshold value; if yes, controlling the vacuum pump 302 to be turned on again;
or alternatively
When the touch signal is not detected to be received, judging whether the turn-off time of the vacuum pump 302 is greater than or equal to a preset vacuum degree maintaining time threshold; if yes, the vacuum pump 302 is controlled to be turned back on.
After the vacuum pump 302 is turned off for a period of time, it may be detected again whether the touch pad 306 receives a touch signal. When the touch signal is not detected to be received, the air is not pumped in all the time. The air extraction control method of the embodiment of the invention proposes to forcibly control the vacuum pump 302 to restart air extraction when the storage time of the storage box 400 is greater than or equal to the sum of the target air extraction time and the preset vacuum degree maintaining time threshold, or when the shutdown time of the vacuum pump 302 is greater than or equal to the preset vacuum degree maintaining time threshold, thereby avoiding the problem that the vacuum fresh-keeping environment cannot be maintained in the storage space 410 for a long time without air extraction and the food storage effect is affected. The storage time of the storage box 400 may be calculated by taking the time point of the storage box 400 placed on the pumping base 300 as the starting time point. The preset vacuum maintenance duration threshold may be, for example, 5-10 days.
Fig. 10 is a detailed flow chart of an air extraction control method of the vacuum storage device 200 according to an embodiment of the invention, the air extraction control method includes the following steps:
powering on the refrigerator;
s202: detecting whether the touch pad 306 receives a touch signal; if the judgment result of the step S202 is yes, executing a step S204;
s204: acquiring the number i of the storage boxes 400 on the air extraction base 300;
s206: controlling the vacuum pump 302 to be started and pumping;
s208: judging whether the opening time of the vacuum pump 302 is greater than or equal to the product of the number i of the storage boxes 400 and a preset single box air extraction time length threshold t; if the judgment result of the step S208 is yes, the step S210 is executed; if the judgment result in the step S208 is no, the step S212 is executed;
s210: the vacuum pump 302 is controlled to be shut down, and no air is pumped; after executing step S210 for a period of time, executing step S214; for example, after performing step S210 to preset the interval duration threshold, step S214 is performed, and the preset interval duration threshold may be, for example, 3 days or 5 days.
S212: detecting whether the touch pad 306 receives a touch signal; if the determination result in step S212 is yes, step S204 is executed; if the judgment result in the step S212 is no, continuing to execute the step S208;
s214: after executing the preset interval duration threshold in step S210, detecting whether the touch pad 306 receives a touch signal; if the determination result in step S214 is yes, step S204 is executed; if the judgment result in the step S214 is no, the step S216 is executed;
s216: judging whether the storage time of the storage boxes 400 is greater than or equal to the sum of the product of the number i of the storage boxes 400 and a preset single box air extraction duration threshold t and a preset vacuum degree maintaining duration threshold q; if the determination result in step S216 is yes, step S204 is executed; if the determination result in step S216 is no, the process returns to step S214.
In the above air extraction control method, step S216 may further be: it is determined whether the shutdown time of the vacuum pump 302 is equal to or longer than a preset vacuum maintenance duration threshold q.
The structure of the vacuum storage device 200 according to the embodiment of the invention is described in detail below with reference to fig. 3 to 6.
As shown in fig. 3, a storage box 400 of the vacuum storage device 200 according to the embodiment of the present invention is detachably fixed to the air extraction base 300, and includes a box body 406 and a cover body 500, wherein the box body 406 includes an inner box body 401 and an outer box body 402, and a storage space 410 is defined in the inner box body 401; the outer box body 402 is sleeved outside the inner box body 401, a gap 403 is formed between the outer box body 402 and the inner box body 401, an air extraction opening 420 is formed in the outer box body 402, and the vacuum pump 302 sequentially extracts part or all of the air in the storage space 410 through the first air extraction opening 310, the air extraction opening 420 and the gap 403. The storage box 400 according to the embodiment of the invention includes an inner box body 401 and an outer box body 402, and by sleeving the outer box body 402 outside the inner box body 401 and forming a gap 403 between the outer box body and the inner box body 401, an air extraction opening 420 is formed on the outer box body 402, so that the vacuum pump 302 sequentially extracts part or all of the air in the storage space 410 through the first air extraction opening 310, the air extraction opening 420 and the gap 403, and the phenomenon that food materials in the storage space 410 fall down to block the air extraction opening 420 is avoided. The outer housing 402 may also have a recess 422 formed therein for receiving the magnet 405.
The bottom wall of the outer case 402 of the storage case 400 according to the embodiment of the present invention is provided with an air extraction opening 420. The storage case 400 according to the embodiment of the present invention further includes: the box body air extraction switch 404 is disposed at the air extraction opening 420, wherein the box body air extraction switch 404 is an elastic member and is configured to: the vacuum pump 302 is turned on, and the box body air suction switch 404 moves downwards under suction force to form an air suction channel with the air suction opening 420; when the air extraction is completed, the box air extraction switch 404 recovers the deformation upwards and closes the air extraction opening 420. Through setting up box body air extraction switch 404, can make after the completion of bleeding, the extraction opening 420 of storing box 400 can keep sealed, and the user can continue to place storing box 400 on air extraction base 300, also can put into other spaces of refrigerator with storing box 400, or place storing box 400 in the refrigerator outside, and storing box 400 still can keep vacuum state for vacuum storing device 200 has multiple application mode.
The top wall of the air extraction base 300 of the vacuum storage device 200 of the embodiment of the invention is provided with a first air extraction opening 310. The suction base 300 further comprises: the base air extraction switch 303 is disposed at the first air extraction opening 310, and is configured to: the storage box 400 is placed at the first air extraction opening 310, and the base air extraction switch 303 moves downwards under the gravity action of the storage box 400 and forms an air extraction channel with the first air extraction opening 310; the storage box 400 is removed from the suction base 300, and the base suction switch 303 moves upward and closes the first suction opening 310. As shown in fig. 2 and 3, the air extraction base 300 includes a base 301, and a first air extraction opening 310 is formed on a top wall of the base 301. According to the air extraction base 300 of the embodiment of the invention, when the storage box 400 is placed at the first air extraction opening 310, an air extraction channel is formed between the air extraction base and the first air extraction opening 310 based on the gravity action of the storage box 400, and after the storage box 400 is removed, the base air extraction switch 303 moves upwards to seal the first air extraction opening 310, so that the opening and sealing structure of the first air extraction opening 310 of the air extraction base 300 is ingenious, the opening and sealing of the first air extraction opening 310 are associated with the placement of the storage box 400, the problem that sundries such as particles enter the air extraction base 300 due to the exposure of the first air extraction opening 310 when the storage box 400 is not placed can be avoided, and the internal cleanliness of the air extraction base 300 can be maintained for a long time.
Specifically, the base suction switch 303 of the suction base 300 according to the embodiment of the present invention includes: a valve body 331, a first spring 332, and a first seal ring 333; wherein the valve body 331 has a horizontal portion (not numbered in the figure) and a vertical portion (not numbered in the figure) extending downward from the horizontal portion, the vertical portion of the valve body 331 is disposed through the first pumping port 310, the outer diameter is smaller than the inner diameter of the first pumping port 310, and an annular groove (not numbered in the figure) is formed at the lower portion; the first spring 332 is sleeved outside the vertical part of the valve body 331 and is clamped between the horizontal part of the valve body 331 and the top wall of the air extraction base 300; the first sealing ring 333 is sleeved in the annular groove, and the outer diameter of the first sealing ring is larger than the inner diameter of the first air extraction opening 310. By providing the base suction switch 303 to include the valve body 331, the first spring 332, and the first seal ring 333, the structure of the base suction switch 303 is easy to configure and low in cost. When the storage box 400 is placed in the air extraction base 300, when the valve body 331 of the base air extraction switch 303 moves downwards under the action of gravity of the storage box 400, the first spring 332 is compressed, the first sealing ring 333 moves downwards, the first air extraction opening 310 is opened, and the outer diameter of the vertical part is smaller than the inner diameter of the first air extraction opening 310, so that an air extraction channel is formed between the vertical part and the first air extraction opening 310; when the storage box 400 is moved out of the air extraction base 300, the first spring 332 is deformed upwards in a recovery manner, the first sealing ring 333 is moved upwards to block the gap between the first air extraction opening 310 and the vertical portion, and the first air extraction opening 310 is closed. As shown in fig. 3, the bottom wall of the outer case 402 of the storage case 400 of the embodiment of the present invention further extends downward around the air extraction opening 420 to form at least one switch protrusion 421, so that when the storage case 400 is placed in the air extraction base 300, the switch protrusion 421 abuts against the horizontal portion of the valve body 331 and pushes the base air extraction switch 303 to move downward. By forming the opening and closing protrusion 421 on the bottom wall of the outer case 402 around the air extraction opening 420, the matching structure of the base air extraction switch 303 and the storage case 400 can be simplified, and the first air extraction opening 310 is opened after the storage case 400 is placed in the air extraction base 300.
The suction base 300 of the embodiment of the present invention further includes: the air extraction box 304 is arranged in the seat 301 and buckled below the first air extraction opening 310, an abutment 341 is formed on the air extraction box 304, and a second air extraction opening 340 is formed on the abutment 341; vacuum pump 302 is connected to docking head 341 via suction line 321. By providing the pumping box 304, the connection between the vacuum pump 302 and the first pumping port 310 can be made easier. When the pumping base 300 has a plurality of first pumping holes 310, a plurality of pumping boxes 304 are correspondingly arranged. For example, the pumping base 300 has three first pumping ports 310, corresponding to three pumping boxes 304, and only a four-way structure of the split parts of the pumping lines 321 is shown in fig. 4, which connects the three pumping boxes 304 and the vacuum pump 302, respectively.
As shown in fig. 3, the bottom wall of the air extraction box 304 of the air extraction base 300 according to the embodiment of the invention is provided with an overpressure air release opening 342; a second spring 343 and a sealing gasket 344 are further arranged in the air extraction box 304, wherein the sealing gasket 344 is arranged at the overpressure air release opening 342, one end of the second spring 343 abuts against the inner side of the top wall of the seat body 301, and the other end abuts against the sealing gasket 344. By providing the overpressure vent 342 on the bottom wall of the air extraction box 304, the structure and components of each part of the vacuum storage device 200 can be protected, the control air pressure is stable, and the problem of overlarge negative pressure during air extraction of the storage box 400 is avoided. Specifically, when the air pressure in the air extraction box 304 is less than the rated air pressure, the second spring 343 will move upward with the sealing pad 344 under the external air pressure, and the overpressure air release opening 342 is opened, so that the air extraction box 304 is communicated with the external air, the air pressure in the air extraction box 304 is no longer reduced and stabilized at the rated air pressure, and the problem of excessive negative air extraction pressure in the storage box 400 is avoided. Therefore, even if the vacuum storage device 200 adopts the timing air suction, the problems of excessive air suction and the like do not need to be worried about, and the overpressure air discharge structure is small in required space, low in cost and high in cost performance. In addition, in order to limit the second spring 343, a positioning post 316 is further formed on the inner side of the top wall of the base 301 at a position corresponding to the second spring 343.
As shown in FIG. 4, the suction base 300 of the embodiment of the present invention may further comprise: the elastic shock-absorbing seat 322 is disposed in the seat 301 and spaced from the air extraction box 304, the elastic shock-absorbing seat 322 has a receiving cavity, and the vacuum pump 302 is disposed in the receiving cavity. Noise of the vacuum pump 302 can be reduced by providing the elastic shock mount 322.
The cover 500 of the storage box 400 according to the embodiment of the present invention is configured to be detachably sealed and fixed with the outer box 402, so as to open and close the storage space 410; wherein the cover 500 is provided with a pressing and inflating structure for allowing external air to enter the storage space 410 and/or an air pressure indicating structure for indicating a vacuum state in the storage space 410.
As shown in fig. 3, the cover 500 of the embodiment of the present invention includes an upper cover 501 and a lower cover 502. The lower cover 502 is fixed to the upper cover 501. As shown in fig. 6, a plurality of clamping protrusions 527 and a plurality of fixing columns 528 are disposed on the lower cover 502, a plurality of hooks (not shown in the drawings) and a plurality of fixing holes are disposed on the upper cover 501 in a matched manner, the hooks are matched in the clamping protrusions, and the fixing columns are matched in the fixing holes, so that the lower cover 502 and the upper cover 501 are fixed. In addition, a ring groove 529 is formed at a circumference of the lower portion of the lower cover 502, and a sealing ring 507 is provided at the ring groove 529 to ensure sealing between the cover 500 and the outer case 402.
In some embodiments, the pressing inflation structure is mainly composed of the inflation valve 503 and the pressing unit. The lower cover 502 is provided with an air inlet 520 penetrating therethrough in the up-down direction. The air charging valve 503 is disposed at the air inlet 520 for opening and closing the air inlet 520. The pressing unit is disposed between the upper cover 501 and the air charge valve 503, and is configured to press the pressing unit to move the air charge valve 503 away from the air intake hole 520 to open the air intake hole 520 so that external air is introduced into the storage space 410.
As shown in fig. 5, the lower cover 502 is further provided with a first mounting opening 521. The air charging valve 503 has a mounting portion 531 and a shielding portion 532, the mounting portion 531 is inserted into the first mounting opening 521 to fix the air charging valve 503 with the lower cover 502, and the shielding portion 532 is configured to abut against the air intake hole 520 to close the air intake hole 520 and away from the air intake hole 520 to open the air intake hole 520. As shown in fig. 6, an air-filling protrusion 523 is formed on the lower cover 502, a first mounting opening 521 is formed in the center of the air-filling protrusion 523, and an air inlet 520 is formed at the edge; the mounting part 531 of the inflation valve 503 is inserted into the first mounting opening 521 and is clamped and fixed with the lower surface of the lower cover 502; the shielding portion 532 covers the upper surface of the intake hole 520.
The pressing unit includes a first movable member 541 and a second movable member 542. The first movable member 541 is configured to be movable up and down within the lower cover 502, and has a pressing portion 5411 and a main pushing portion 5412, wherein the pressing portion 5411 is disposed near the upper cover 501, and the main pushing portion 5412 is disposed on a side of the pressing portion 5411 near the inflation valve 503. The second movable member 542 is disposed below the main pushing portion 5412 and at one side of the air charging valve 503, and the pressing unit is configured to move the main pushing portion 5412 up and down by pressing the pressing portion 5411 of the first movable member 541 so as to push the second movable member 542 to move left and right to approach and push the air charging valve 503 away from the air intake hole 520. As shown in fig. 6, the lower cover 502 is provided with a support column 525, a rotating shaft 5413 is formed on one side of the pressing portion 5411 of the first movable member 541 away from the main pushing portion 5412, an arc-shaped groove is formed at a top end of the support column 525, and the rotating shaft 5413 is fitted in the arc-shaped groove. The main pushing portion 5412 is substantially rod-shaped.
The second movable member 542 has a first auxiliary pushing portion 5421 and a second auxiliary pushing portion 5422, wherein the first auxiliary pushing portion 5421 has an inclined surface structure, and the inclined surface structure is located below the main pushing portion 5412; the second auxiliary pushing portion 5422 is disposed below the first auxiliary pushing portion 5421, and an end of the second auxiliary pushing portion 5422, which is close to the air charging valve 503, has a sharp head 5423, and the second movable member 542 lifts the air charging valve 503 up to open the air intake hole 520 by using the sharp head 5423. By providing the first movable member 541 and the second movable member 542, the user's up-down pressing motion can be converted into the left-right motion of the second movable member 542, and after the sharp head 5423 of the second movable member 542 approaches the shielding portion 532 of the air charging valve 503, the corresponding area of the shielding portion 532 is lifted upward, thereby opening the air intake hole 520.
The pressing unit further includes a pressing spring 543 and a traction spring 544. The pressing spring 543 is sandwiched between the pressing portion 5411 and the lower cover 502. The traction spring 544 is disposed on one side of the second movable member 542 away from the inflation valve 503, and one end of the traction spring 544 is connected to the second movable member 542, and the other end is connected to the lower cover 502, for pulling the second movable member 542 away from the inflation valve 503 after inflation is completed. As shown in fig. 6, the lower cover 502 is provided with a positioning column 526, and the pressing spring 543 is sleeved outside the positioning column 526.
The pressing unit further includes a guide 545 provided in the lower cover 502 and having a guide groove 5451 in a left-right direction, and a second auxiliary pushing part 5422 is moved left-right in cooperation in the guide groove 5451, and one end of the traction spring 544 is connected to the second auxiliary pushing part 5422 and the other end is connected to the guide 545. As shown in fig. 6, a fixing rib 5452 is formed at an end of the guide member 545 remote from the air charge valve 503, a fixing rib 5424 is formed at an end of the second auxiliary pushing portion 5422 remote from the air charge valve 503, and one end of the traction spring 544 is connected to the fixing rib 5452 and the other end is connected to the fixing rib 5424.
As shown in fig. 3, the air pressure indicating structure is mainly composed of an air pressure indicating cylinder 505 and a mounting 551. The lower cover 502 is provided with a second mounting opening 522 penetrating therethrough in the up-down direction. The cover 500 of the embodiment of the present invention further includes: the air pressure indicating column 505 is disposed at the second mounting opening 522, and the air pressure indicating column 505 is a hollow structure having an opening at a lower portion thereof and is a flexible deformation structure at least at a top region thereof, such that a vacuum state in the storage space 410 is shown based on a deformation degree of the flexible deformation structure at the top of the air pressure indicating column 505. Specifically, the upper cover 501 is provided with a third mounting opening 510 penetrating in the up-down direction thereof, wherein the projection of the third mounting opening 510 on the horizontal plane covers the second mounting opening 522, so that the top area of the air pressure indicating column 505 is exposed outside the upper cover 501. The mounting member 551 has a bottom wall portion 5511 and a side wall portion 5512, the bottom wall portion 5511 is provided with a plurality of ventilation holes 5510 extending in the vertical direction, and the side wall portion 5512 is inserted and fixed into the air pressure indicating column 505 from an opening in the lower portion of the air pressure indicating column 505. In the absence of the evacuation, the flexible deformation structure of the air pressure indicating cylinder 505 is naturally stretched out, as shown in fig. 5, protruding from the upper surface of the upper cover 501. The flexible deformation structure of the air pressure indicating column 505 gradually contracts and moves downward when the vacuum is applied, and the vacuum is applied when the upper surface of the air pressure indicating column 505 is flush with the upper surface of the upper cover 501. After the storage box 400 is placed for a period of time, if the vacuum degree in the storage space 410 is reduced to a certain degree, the flexible deformation structure of the air pressure indicating column 505 is stretched upwards again, and thus the vacuum state in the storage space 410 can be shown based on the deformation degree of the flexible deformation structure of the air pressure indicating column 505. As shown in fig. 6, a support bracket 524 for mating with the air pressure indicating cylinder 505 may be provided on the lower cover 502.
The cover 500 of the embodiment of the present invention further includes: the pressing top plate 552 is disposed at the third mounting opening 510, one side of which is integrated with the air pressure indicating column 505, and the other side of which is located above the pressing unit for being pressed by a user. The pressing top plate 552 and the air pressure indicating cylinder 505 may be an integral elastic member. As shown in fig. 6, a seal 553 is provided between the pressing top plate 552 and the third mounting port 510.
The cover 500 of the present embodiment further includes at least one pair of movable lugs 506, wherein an upper portion of each movable lug 506 is rotatably connected to the upper cover 501 or the lower cover 502, and a fixing protrusion 561 is disposed on an inner side surface of the lower portion. The upper portion of outer box body 402 is provided with fixed protruding 423, and fixed protruding 423 and the fixed protruding 561 of movable button lug 506 of outer box body 402 one-to-one joint is in order to realize lid 500 and box body part's fixed. As shown in fig. 6, a rotating shaft 562 is formed at the top of the movable button lug 506, receiving grooves 511 are formed at both sides of the upper cover 501, rotating shaft holes 512 are formed at both sides of the receiving grooves 511, and the rotating shaft 562 is fitted in the rotating shaft holes 512.
In the description of the present embodiment, it is to be understood that, for the vacuum storage device 200, the terms "upper", "lower", "front", "rear", "left", "right", etc. refer to the orientation or positional relationship shown in fig. 2. While this is done solely for the purpose of describing the invention and simplifying the description, it is not intended to indicate or imply that the devices or elements referred to must be in a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (8)

1. The vacuum storage device comprises an air extraction base and one or more storage boxes, wherein one or more placement grooves are formed in the air extraction base, a first air extraction opening is formed in each placement groove, a vacuum pump is further arranged in the air extraction base, a storage space is defined in each storage box, and an air extraction opening is formed in each storage box, and the vacuum pump sequentially extracts part or all of air in the storage space through the first air extraction opening and the air extraction openings; and a touch pad for receiving a touch signal is further arranged in the air extraction base, wherein the method comprises the following steps:
detecting whether the touch control board receives a touch control signal or not;
when the touch signal is detected to be received, the vacuum pump is controlled to be started, and air suction is started;
before or after the step of controlling the vacuum pump to be turned on, the method further includes:
acquiring the number of the storage boxes on the air extraction base;
calculating the product of the number of the storage boxes and a preset single box air extraction time threshold value to obtain a target air extraction time;
judging whether the opening time of the vacuum pump is more than or equal to the target air extraction time length;
when the starting time of the vacuum pump is smaller than the target air extraction time, detecting whether the touch control signal is received by the touch control panel or not again;
if not, controlling the vacuum pump to continue pumping until the opening time is more than or equal to the target pumping duration;
if yes, the number of the storage boxes on the air extraction base is obtained again.
2. The method of claim 1, wherein,
and when the opening time of the vacuum pump is more than or equal to the target air extraction time, controlling the vacuum pump to be stopped, and stopping air extraction.
3. The method of claim 2, wherein after the step of controlling the vacuum pump to shut down, the method further comprises:
detecting whether the touch signal is received by the touch pad again;
when the touch signal is not detected to be received, judging whether the storage time of the storage box is more than or equal to the sum of the target air extraction duration and a preset vacuum degree maintaining duration threshold; if yes, controlling the vacuum pump to be restarted;
or alternatively
When the touch signal is not detected to be received, judging whether the turn-off time of the vacuum pump is greater than or equal to a preset vacuum degree maintaining time threshold; if yes, controlling the vacuum pump to be restarted.
4. The method of claim 1, wherein each of the placement slots is further provided with a micro switch; the step of obtaining the number of the storage boxes on the air extraction base comprises the following steps:
and acquiring the number of the triggered micro switches to obtain the number of the storage boxes on the air extraction base.
5. The method of claim 1, wherein a set of magnetically sensitive switches are further provided at each of the placement slots, and a set of magnets are provided at the bottom wall of each storage box corresponding to the magnetically sensitive switches; the step of obtaining the number of the storage boxes on the air extraction base comprises the following steps:
and obtaining the number of matched groups of the magnetically sensitive switch and the magnet to obtain the number of the storage boxes on the air extraction base.
6. A vacuum storage device, comprising:
the air extraction base;
the storage box; and
a controller comprising a memory and a processor, wherein the memory stores a machine executable program that when executed by the processor implements the suction control method according to any one of claims 1-5.
7. The vacuum storage device as claimed in claim 6, wherein,
the air exhaust base is provided with a touch button on the outer side of the front wall, and a touch pad on the inner side of the front wall, and is configured to receive a touch signal when the touch button is touched.
8. A refrigerator characterized by having a vacuum storage device according to any one of claims 6-7.
CN202110652863.7A 2021-06-11 2021-06-11 Vacuum storage device, air extraction control method and refrigerator Active CN115468366B (en)

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PCT/CN2022/095655 WO2022257787A1 (en) 2021-06-11 2022-05-27 Vacuum storage device, air extraction control method, and refrigerator

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CN111578585A (en) * 2020-04-26 2020-08-25 海信(山东)冰箱有限公司 Refrigerator with a door
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CN110603199A (en) * 2017-04-14 2019-12-20 J-F·伯雷克 Container for vacuum storage of food products, lid, assembly comprising a container and a lid and system for vacuum packaging of food products
WO2019001230A1 (en) * 2017-06-29 2019-01-03 佛山市顺德区美的电热电器制造有限公司 Cooking appliance and control method thereof
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