CN103466203A - Full-automatic vacuum preservation box and control method thereof - Google Patents
Full-automatic vacuum preservation box and control method thereof Download PDFInfo
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- CN103466203A CN103466203A CN2013102469832A CN201310246983A CN103466203A CN 103466203 A CN103466203 A CN 103466203A CN 2013102469832 A CN2013102469832 A CN 2013102469832A CN 201310246983 A CN201310246983 A CN 201310246983A CN 103466203 A CN103466203 A CN 103466203A
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Abstract
The invention provides a full-automatic vacuum preservation box which at least comprises a box body and a box cover, wherein a vacuum pump mounting cabin, a battery cabin and a silencer are arranged in the box cover; a vacuum pump and a pressure detection module are arranged in the vacuum pump mounting cabin. According to the full-automatic vacuum preservation box, the vacuum pump, the silencer and other components are integrated in the box cover, so that the space occupied by a vacuumizing mechanism can be effectively reduced, thus the preservation box is more compact in structure and more convenient to carry and use; meanwhile, a unidirectional sealing structure is arranged between the silencer and the vacuum pump and can prevent air from entering the box body from the silencer, thereby playing better sealing and pressure maintaining effects, the startup operation frequency of the vacuum pump is reduced, and the preservation box has a better preservation effect; the pressure detection control module arranged in the box cover can be used for monitoring the vacuum degree in the box body in real time and can keep the vacuum degree in the box body always constant by matching with the vacuum pump, and thus vacuum preservation is realized in a real sense.
Description
Technical field
The present invention relates to a kind of antistaling vacuum container, particularly relate to a kind of crisper that can realize the fully automatic vacuum pressure holding function with vacuum extractor.
Background technology
Food can be stored the longer time under cold storage environment, and the length of food storage time not only is subject to the impact of temperature and humidity, but also can be subject to the impact of the factor such as level of oxygen and bacterium in environment.For the time that food is preserved longer, people are desirable to provide the food storage environment of a hypoxemia, low bacterium, the vacuum freshness retaining technology is also just arisen at the historic moment.So-called vacuum freshness retaining is exactly to utilize the food storage environment that vacuumizes hypoxemia of quick formation, low bacterium, volatility in fast eliminating fruits and vegetables organization internal and the storage environment gas that accelerates the ripening, can delay significantly after-ripening and the senescence process of fruits and vegetables, extend the shelf life, vacuumize the radix that can also greatly reduce germ, may cause the germ rotted to get rid of outside storage environment the overwhelming majority in storage environment, the corruption that has delayed to a great extent fruits and vegetables becomes process." vacuum freshness retaining refrigerator " occurred on market is exactly to utilize the technology of " low temperature adds vacuum " to reach better fresh-keeping effect.
Vacuum crisper is a kind of container that adopts the vacuum freshness retaining technology to store specially the article such as food, medicine in fact.The Vacuuming structure of existing vacuum crisper is comparatively complicated, and Vacuuming structure tends to take larger shell space, so just makes the volume of crisper increase, and its use is caused to certain limitation.Common vacuum crisper is often just undertaken fresh-keeping by the mode of sealing in the market, make the isolated to reach the effect of guaranteeing the quality of crisper inside and outside air by sealing, the function that it does not have Automatic Extraction and maintains vacuum, even some vacuum crisper in vacuum state, just can't again return to vacuum state afterwards but open when initial.
Also have some vacuum crispers (comprising the vacuum crisper used on vacuum freshness retaining refrigerator) can aspirating hole be set on box body, be connected with outside vacuum extractor by aspirating hole, by outside vacuum extractor, extract the air in crisper.Because the crisper box body must be provided with door or the lid for accessing article, in order to guarantee sealing, how can be provided with sealing band on these doors or lid, yet so being difficult to the assurance positive confinement does not leak (because also all there is molecular gap in theory in any object yet, therefore absolute leak free box is non-existent), so these crispers also are difficult to guarantee remain at vacuum state in crisper after vacuumizing end.
Known by above-mentioned analysis, existing vacuum crisper is difficult to guarantee also be in all the time vacuum state (even still in its vacuum values of vacuum state, also become very low, fresh-keeping effect is poor) in crisper after once vacuumizing end.And now, a lot of users also can think that article are to be in vacuum state, will often there will be like this and cause for this reason the rotten situation of article in crisper to occur.Therefore be necessary to design a kind of simple in structure, volume is little, be convenient for carrying, can guarantee that box body remains on vacuum crisper vacuum state, truly always.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of simple in structure, volume is little and can keep the crisper of vacuum state always.
Reach for achieving the above object other relevant purposes, the invention provides a kind of fully automatic vacuum crisper, it at least comprises box body and lid, described box body and described lid sealing clamping, described box body is provided with bleeder port, be provided with the sealing member be sealed and matched with it in described bleeder port, described lid is provided with airtight vacuum pump storehouse is installed, silencer and battery compartment, described vacuum pump is installed storehouse and is communicated with the inner chamber of described box body, described vacuum pump is installed in storehouse and is provided with vacuum pump and pressure detection module, described pressure detection control module is connected with described vacuum pump, described pressure detection control module is installed the pressure size in storehouse and controls described vacuum pump work for detection of described vacuum pump, the exhausr port of described vacuum pump is connected with described silencer by connection pipe, described battery compartment is for placing the battery to described vacuum pump and the power supply of pressure detection control module.
Preferably, also be provided with a USB interface on described lid, described USB interface is connected with described pressure detection control module.
Preferably, described silencer and described lid are integrated mechanism, described silencer is provided with an air inlet pipe stretched out to described vacuum pump direction, form the induction opening of silencer in described air inlet pipe, in described induction opening, be provided with sealing plug, described sealing plug is connected with Compress Spring, described sealing plug can move up and down in described induction opening, when described sealing plug is positioned at described induction opening bottom, described induction opening sealing, the exhausr port of described vacuum pump is connected with described air inlet pipe by described connection pipe.
Preferably, described sealing plug comprises a minor diameter part, a large-diameter portion and a tapered portion from top to bottom successively, described silencer is provided with a spacing hole, described spacing hole is corresponding with described air inlet pipe position, the upper end of described Compress Spring is positioned at described spacing hole, the lower end of described Compress Spring is enclosed within on described minor diameter part, and the bottom of described induction opening is provided with the tapered opening adapted with described tapered portion shape.
Preferably, spaced apart between the exhausr port of described vacuum pump and described air inlet pipe, the exhausr port of described vacuum pump is connected with described air inlet pipe by a flexible pipe.
Preferably, described lid is provided with for making the buckle of lid and box body sealing clamping, and described sealing member is positioned on described buckle, and described bleeder port is corresponding with described sealing member position.
Preferably, described sealing member comprises a pilot seal post and a silica gel sealing cover, described pilot seal post is through described silica gel sealing cover, when described lid and described box body sealing clamping, described pilot seal post inserts described bleeder port and is sealed and matched with this bleeder port, and described silica gel sealing cover is pressed between described box body and described buckle.
The invention also discloses a kind of control method of fully automatic vacuum crisper, it comprises the steps:
1) higher limit and the lower limit of box body degree of vacuum are set;
2) detect the degree of vacuum size in box body by the pressure detection control module, degree of vacuum value in box body lower than the regulation the degree of vacuum lower limit time, described pressure detection control module makes vacuum pump startup operation start to vacuumize, degree of vacuum value in box body higher than the regulation the degree of vacuum higher limit time, described pressure detection control module makes vacuum pump out of service; Twice startup of vacuum pump should between at regular intervals, as the time gap of twice run up time of vacuum pump lower than the number of times of specified time more than stipulated number, send alerting signal.
Preferably, in step 2) in, vacuum pump moves continuously the duration that is provided with the longest run time and limits, as starting rear continuous running time, vacuum pump exceeds schedule time, vacuum pump is automatically out of service, and sends alerting signal, only has again after power-off restoration and just can continue operation.
Preferably, in step 2) in, the pressure detection control module adopts the interrupted mode detected, just detect the pressure in box body one time every certain time interval, within the period of detected pressures not, the pressure detection control module is not powered, to lower power consumption, extend service time of battery, and play energy-conservation effect.
As mentioned above, fully automatic vacuum crisper of the present invention has following beneficial effect: this fully automatic vacuum crisper by component integrations such as vacuum pump, silencers in lid, can effectively reduce the space that vacuum device takies like this, make the crisper structure more compact, it is more convenient to carry and use; Between silencer and vacuum pump, the one-way sealing structure is set simultaneously and can prevents that gas from entering in box body from silencer, thereby play better sealing and pressurize effect, reduce the startup number of run of vacuum pump, make the vacuum box fresh-keeping effect better; The pressure detection control module is set in lid and can monitors in real time the degree of vacuum in box body, coordinate vacuum pump to use the degree of vacuum that can make in box to remain constant, thereby realize vacuum freshness retaining truly.
The accompanying drawing explanation
The Split type structure schematic diagram that Fig. 1 is the embodiment of the present invention.
The inner structure schematic diagram that Fig. 2 is embodiment of the present invention lid.
The enlarged diagram that Fig. 3 is embodiment of the present invention sealing member.
The structural representation that Fig. 4 is embodiment of the present invention silencer air inlet position.
The structural representation that Fig. 5 is embodiment of the present invention sealing plug.
The element numbers explanation
1 box body
11 bleeder ports
2 lids
21 buckles
22 pilot seal posts
23 dividing plates
24 vacuum pumps are installed storehouse
25 battery compartments
26 battery compartment upper covers
27 silica gel sealing covers
271 jacks
272 bigger diameter ends
273 miner diameter ends
28 shrinkage pools
3 vacuum pumps
31 vacuum pump exhaust ports
32 air-inlet of vacuum pumps
4 pressure detection control modules
5 silencers
50 deflation holes
51 air inlet pipes
52 sealing plugs
521 tapered portion
522 minor diameter parts
523 large-diameter portions
53 Compress Springs
54 spacing holes
55 induction openings
56 silencer protective covers
6 USB interfaces
The specific embodiment
Below by particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this specification sheets.
Refer to Fig. 1 to Fig. 5.Notice, appended graphic the illustrated structure of this specification sheets, ratio, size etc., equal contents in order to coordinate specification sheets to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the present invention, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under the effect that the present invention can produce and the purpose that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this specification sheets, quote as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the present invention.
As shown in Figure 1, 2, the invention provides a kind of fully automatic vacuum crisper, this fully automatic vacuum crisper comprises box body 1 and lid 2, lid 2 is provided with buckle 21, by buckle 21, can make box body 1 and lid 2 be connected together and be sealed and matched, adopt the clamping sealing means to open with the fastening lid all very convenient.The number of buckle 21 can reach as required cassette shapes and be regulated, and the more sealing effectivenesss of number of general buckle are better.
Be provided with a dividing plate 23 in lid 2, dividing plate 23 is arranged on the bottom of lid 2, forms an airtight vacuum pump between the top of dividing plate 23 and lid 2 storehouse 24 is installed, and dividing plate 21 is provided with air extractor vent, when lid 2 covers at box body 1, air extractor vent can make this vacuum pump installation storehouse 24 be communicated with the inner chamber of box body 1.Vacuum pump is installed in storehouse 24 and is provided with vacuum pump 3 and pressure detection module 4, and vacuum pump exhaust port 31 is connected with the induction opening of silencer 5 by a connection pipe, and air-inlet of vacuum pump 32 is positioned at vacuum pump storehouse 24 is installed.Air in box body 1 can be extracted out and discharged by silencer 5 by the air extractor vent on dividing plate 21 during vacuum pump 3 work, the noise that silencer 5 can effectively reduce vacuum pump to be produced while bleeding.
In order to prevent that vacuum pump 3 from damaging because of frequent starting, vacuum pump 3 twice startup should between at regular intervals, as the time gap of twice run up time of vacuum pump lower than the number of times of specified time more than stipulated number, comparatively serious gas leak phenomenon has appearred in this explanation crisper, may be that the tight or box body of box body and lid sealing damages and causes, now should send alerting signal by the warning device be arranged on box body, remind the related personnel to be checked box body.
Similarly, produced for preventing similar above-mentioned gas leakage the situation that vacuum pump is still ceaselessly bled, should set the vacuum pump duration restriction of operation continuously, when the vacuum pump operation still can not reach the vacuum values of setting to the longest time limit in box, should be considered as crisper gas leakage seriously or damages, now vacuum pump will be automatically out of service, and after examine is repaired, electrification reset could continue normal the use again.
Also be provided with a battery compartment 25 on lid 2, battery compartment 25 is provided with battery compartment upper cover 26, and battery compartment 25 is for placing the battery to vacuum pump 3 and 4 power supplies of pressure detection control module, and battery can be selected the 12V dc-battery.In order to save the use of battery, USB interface 6 can be set on the outer wall of lid 2, this USB interface 6 can adopt the handset port mode of standard, facilitate the user that the place socket power power taking of power supply is being arranged, certainly now vacuum pump and the total power consumption capacity of detection module should be limited in the capacity of standard usb interface, to prevent the generation of overload condition.Simultaneously, this USB interface 6 can be connected with pressure detection control module 4, coordinate software section, can the parameter in pressure detection control module 4 be arranged by smart machines such as computers, thereby this crisper can be regulated according to different clients' needs, or it is monitored in real time, reach intelligentized effect, make its range of use more extensive, also make the better experience of customer acquisition.Now the upper limit of vacuum values need to be limited, and to guarantee crisper to use in the range of pressure allowed, can not damage.
During in vacuum state, owing to existing pressure reduction so lid to be difficult to open inside and outside box body, bleeder port 11 need to be set on box body when crisper inside for this reason, and the sealing member be sealed and matched with it in the interior setting of bleeder port 11.When being vacuumized, in bleeder port 11, the box body inner chamber is hedged off from the outer world the sealing member plug; When needs open the lid 2 the time, sealing member is extracted in bleeder port 11, so just can make the box body inner and outer air pressure reach balance, so just can make lid 2 open very easily.
As shown in Figure 3, as a kind of optimal way, sealing member comprises a pilot seal post 22, pilot seal post 22 is connected with buckle 21, the position of bleeder port 11 is corresponding with the position of pilot seal post 22, when lid 2 seals clamping with box body 1, pilot seal post 22 can just be inserted in corresponding bleeder port 11 and be sealed and matched with this bleeder port 11.When needs open the lid 2 the time, only buckle 21 need be opened, pilot seal post 22 just can be extracted in bleeder port 11, so just can make box body inside and outside be communicated with by bleeder port 11.In order to reach better sealing effectiveness, also be provided with a silica gel sealing cover 27 on pilot seal post 22, silica gel sealing cover 27 is provided with jack 271, and pilot seal post 22, through this jack 271, is sealed and matched between pilot seal post 22 and silica gel sealing cover 27.Silica gel sealing cover 27 is step-like column structure, and buckle 21 is provided with a shrinkage pool 28, and pilot seal post 22 is positioned at this shrinkage pool 28, and miner diameter end 273 plugs of silica gel sealing cover 27 are in shrinkage pool 28, and its bigger diameter end 272 is positioned at the outside of shrinkage pool 28.When lid 2 seals clamping with box body 1, the bigger diameter end 272 of silica gel sealing cover 27 can be pressed between buckle and box body, so just bleeder port 11 and shrinkage pool 28 can be blocked fully, thereby can effectively prevent that gas from leaking from bleeder port 11, can play better sealing effectiveness.
As shown in Figure 4,5, for the structure that makes this crisper is more compact, silencer 5 and lid 2 can be designed to integral mechanism, the deflation hole 50 of silencer 5 is positioned on the sidewall of lid 2.One air inlet pipe 51 stretched out to vacuum pump 3 directions is set on silencer 5, the induction opening 55 of the interior formation silencer of air inlet pipe 51, induction opening 55 is communicated with the silencer champer of silencer 5.Be provided with sealing plug 52 in induction opening 55, sealing plug 52 is connected with Compress Spring 53, and sealing plug 52 is rubber seal plug.Sealing plug 52 can move up and down in induction opening 55, and when sealing plug 52 is positioned at induction opening 55 bottom the time, sealing plug 52 can be by induction opening 55 sealings.
As a kind of optimal way, the bottom of sealing plug 52 is provided with a tapered portion 521, and the bottom of induction opening 55 is provided with the tapered opening adapted with this tapered portion 521 shapes.When the compressed spring 53 of sealing plug 52 is depressed into induction opening 55 bottom the time, tapered portion 521 is sealed and matched with the tapered opening of induction opening 55, can make like this induction opening 55 sealings.Because sealing place of induction opening 55 is taper fit, sealing plug 52 and induction opening 55 to contact aspect more, there is extraordinary sealing effectiveness.
For the ease of sealing plug 52, with Compress Spring 53, be connected, also be provided with a minor diameter part 522 and a large-diameter portion 523 on sealing plug 52, minor diameter part 522 is positioned at the top of large-diameter portion 523, and minor diameter part 522 is connected with tapered portion 521 by large-diameter portion 523, and Compress Spring 53 is enclosed within on minor diameter part 522.Also be provided with a spacing hole 54 on silencer 5, the position of spacing hole 54 is corresponding with the position of air inlet pipe 51, the upper end of Compress Spring 53 is positioned at spacing hole 54, and the lower end of Compress Spring 53 is enclosed within on minor diameter part 522, and large-diameter portion 523 can be supported Compress Spring 53.Adopt this mounting structure, can be convenient to being connected of Compress Spring 53 and sealing plug 52.Also can play certain directional tagging to sealing plug 52 simultaneously, prevent that sealing plug 52 from inclination occurring and affecting sealing effectiveness in moving up and down process.Large-diameter portion 523 is arranged to step-like, is convenient to like this that sealing plug 52 is unidirectional to be opened.
Vacuum pump exhaust port 31 is relative with air inlet pipe 51 positions, and vacuum pump exhaust port 31 is connected with air inlet pipe 51 by a flexible pipe.Vacuum pump exhaust port 31 should separate long segment distance with air inlet pipe 51, by a long soft-pipe made, connects, and long soft-pipe made can absorb the gas part energy, can reduce like this noise of vacuum pump.
In order further to reduce noise, silencer 5 can be divided into to gas buffer chamber and silencer champer two parts, silencer champer is divided into a plurality of air chambers by several acoustical panels, the adjacent air chamber formation gas passage that is interconnected.Be provided with dividing plate between gas buffer chamber and silencer champer, dividing plate is provided with intercommunicating pore, and induction opening 55 is communicated with the gas buffer chamber, and the deflation hole 50 of silencer is communicated with silencer champer.The gas of being discharged by vacuum pump 3 air extractor ducts has certain speed and energy, when gas enters into the gas buffer chamber, because of gas buffer chamber volume larger, therefore airflow volume can change, can consume the air-flow part energy in the process changed in airflow volume, like this when air-flow after the gas buffer chamber enters the silencer champer noise reduction again, the noise of air-flow just has been eliminated substantially.Also be provided with silencer protective cover 56 on silencer 5, the gas by silencer 5 can be discharged by the gap between silencer protective cover 56 and lid.
This fully automatic vacuum crisper in lid, can effectively reduce the space that vacuum device takies by component integrations such as vacuum pump, silencers like this, makes the crisper structure more compact, and volume is less, uses and carries convenient; Between silencer and vacuum pump, the one-way sealing valve body is set simultaneously and can stops gas to enter in box from silencer, thereby can make crisper play better sealing fresh-keeping effect; The pressure detection control module is set in lid and can monitors in real time the degree of vacuum in box body, coordinate vacuum pump to use the degree of vacuum that can make in box body to remain constant, thereby can make crisper play better fresh-keeping effect.Because we have developed the minipump product of extremely low power dissipation, making the mode of taking battery and USB power supply be applied on vacuum crisper realizes fully, add that package unit weight is light, small volume, the user can carry (or being placed in car) fully, this,, with regard to making the user can will need the article of fresh-keeping (guaranteeing the quality) to be placed in evacuated space truly, reaches the effect of vacuum freshness retaining whenever and wherever possible.Simultaneously, due to the use of USB communication interface, the use of battery is saved, and has promoted and install intelligentized level and the user experience to product.Further, due to can be portable and mobile, if this device is placed in refrigerator, can replace the vacuum crisper on similar products such as so-called on market " vacuum freshness retaining refrigerators " fully.But its price is lower, and performance is more excellent.So the present invention is because effectively having overcome the industrial utilization of various shortcoming tool height of the prior art.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, be modified or be changed above-described embodiment.Therefore, such as in affiliated technical field, have and usually know that the knowledgeable, not breaking away from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (10)
1. a fully automatic vacuum crisper, it at least comprises box body and lid, described box body and described lid are sealed and matched, described box body is provided with bleeder port, be provided with the sealing member be sealed and matched with it in described bleeder port, it is characterized in that: described lid is provided with airtight vacuum pump storehouse is installed, silencer and battery compartment, described vacuum pump is installed storehouse and is communicated with the inner chamber of described box body, described vacuum pump is installed in storehouse and is provided with vacuum pump and pressure detection module, described pressure detection control module is connected with described vacuum pump, described pressure detection control module is installed the pressure size in storehouse and controls described vacuum pump work for detection of described vacuum pump, the exhausr port of described vacuum pump is connected with described silencer by connection pipe, described battery compartment is for placing the battery to described vacuum pump and the power supply of pressure detection control module.
2. fully automatic vacuum crisper according to claim 1, it is characterized in that: also be provided with a USB interface on described lid, described USB interface is connected with described pressure detection control module.
3. fully automatic vacuum crisper according to claim 1, it is characterized in that: described silencer and described lid are integrated mechanism, described silencer is provided with an air inlet pipe stretched out to described vacuum pump direction, form the induction opening of silencer in described air inlet pipe, be provided with sealing plug in described induction opening, described sealing plug is connected with Compress Spring, described sealing plug can move up and down in described induction opening, when described sealing plug is positioned at described induction opening bottom, described induction opening sealing, the exhausr port of described vacuum pump is connected with described air inlet pipe by described connection pipe.
4. fully automatic vacuum crisper according to claim 3, it is characterized in that: described sealing plug comprises a minor diameter part, a large-diameter portion and a tapered portion from top to bottom successively, described silencer is provided with a spacing hole, described spacing hole is corresponding with described air inlet pipe position, the upper end of described Compress Spring is positioned at described spacing hole, the lower end of described Compress Spring is enclosed within on described minor diameter part, and the bottom of described induction opening is provided with the tapered opening adapted with described tapered portion shape.
5. fully automatic vacuum crisper according to claim 3 is characterized in that: spaced apart between the exhausr port of described vacuum pump and described air inlet pipe, the exhausr port of described vacuum pump is connected with described air inlet pipe by a flexible pipe.
6. fully automatic vacuum crisper according to claim 1 is characterized in that: described lid is provided with for making the buckle of lid and box body sealing clamping, and described sealing member is positioned on described buckle, and described bleeder port is corresponding with described sealing member position.
7. fully automatic vacuum crisper according to claim 6, it is characterized in that: described sealing member comprises a pilot seal post and a silica gel sealing cover, described pilot seal post is through described silica gel sealing cover, when described lid and described box body sealing clamping, described pilot seal post inserts described bleeder port and is sealed and matched with this bleeder port, and described silica gel sealing cover is pressed between described buckle and described box body.
8. the control method of a fully automatic vacuum crisper, is characterized in that, it comprises the steps:
1) higher limit and the lower limit of box body degree of vacuum are set;
2) detect the degree of vacuum size in box body by the pressure detection control module, degree of vacuum value in box body lower than the regulation the degree of vacuum lower limit time, described pressure detection control module makes vacuum pump startup operation start to vacuumize, degree of vacuum value in box body higher than the regulation the degree of vacuum higher limit time, described pressure detection control module makes vacuum pump out of service; Twice startup of vacuum pump should between at regular intervals, as the time gap of twice run up time of vacuum pump lower than the number of times of specified time more than stipulated number, send alerting signal.
9. the control method of fully automatic vacuum crisper according to claim 8, it is characterized in that: in step 2) in, the continuous operation of vacuum pump should not exceed schedule time, and as vacuum pump starts rear operation continuously, exceeds schedule time, vacuum pump is automatically out of service, and sends alerting signal.
10. the control method of fully automatic vacuum crisper according to claim 8, it is characterized in that: in step 2) in, the pressure detection control module adopts the interrupted mode detected, just detect the pressure in box body one time every certain time interval, within the period of detected pressures not, the pressure detection control module is not powered, to lower power consumption, extend service time of battery, and play energy-conservation effect.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105333665A (en) * | 2014-06-04 | 2016-02-17 | 博西华电器（江苏）有限公司 | Household appliance with vacuum system |
| CN105540054A (en) * | 2016-01-26 | 2016-05-04 | 成都国光电气股份有限公司 | Vacuum storage cabinet |
| WO2017148356A1 (en) * | 2016-03-01 | 2017-09-08 | 杭州糖球科技有限公司 | Smart vacuum fresh-keeping meal-box |
| WO2020151526A1 (en) * | 2019-01-23 | 2020-07-30 | 林万顷 | Constant-pressure automatic vacuum preservation tank with adjustable negative pressure |
| CN112678348A (en) * | 2020-12-25 | 2021-04-20 | 深圳市铭贤光电科技有限公司 | Intelligent vacuum fresh-keeping machine |
| CN114383359A (en) * | 2020-10-21 | 2022-04-22 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
| CN114383355A (en) * | 2020-10-19 | 2022-04-22 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
| CN113955319B (en) * | 2021-11-19 | 2024-04-26 | 珠海格力电器股份有限公司 | Negative pressure generating structure and preservation box |
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Address after: 215000 Jiangsu city of Suzhou province Wuzhong District Swan Dang Lu Yuexi Fumin Industrial Zone 5 Patentee after: Suzhou Union Tongli Environmental Technology Co., Ltd. Address before: 215000 Jiangsu city of Suzhou province Wuzhong District Swan Dang Lu Yuexi Fumin Industrial Zone 5 Patentee before: Suzhou Mactuni Electromechanical Equipment Co., Ltd. |