CN105806004A - Modified atmosphere fresh-keeping device, control method thereof and refrigerator comprising modified atmosphere fresh-keeping device - Google Patents
Modified atmosphere fresh-keeping device, control method thereof and refrigerator comprising modified atmosphere fresh-keeping device Download PDFInfo
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- CN105806004A CN105806004A CN201410845611.6A CN201410845611A CN105806004A CN 105806004 A CN105806004 A CN 105806004A CN 201410845611 A CN201410845611 A CN 201410845611A CN 105806004 A CN105806004 A CN 105806004A
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Abstract
The invention discloses a modified atmosphere fresh-keeping device, a control method thereof and a refrigerator comprising the modified atmosphere fresh-keeping device. The modified atmosphere fresh-keeping device comprises a sealable variable temperature chamber. The variable temperature chamber is provided with a refrigerating air door capable of introducing cold air. The modified atmosphere fresh-keeping device further comprises a vacuum pump and a gas storage tank which communicate with the variable temperature chamber. Rare gases are stored in the gas storage tank. When the refrigerating air door is closed, the vacuum pump is turned on, discharges out the air in the variable temperature chamber and then is turned off. The gas storage tank releases rare gases, and the rare gases enter the variable temperature chamber. By adopting the modified atmosphere fresh-keeping device, a low-temperature, low-pressure and rare gas modified fresh-keeping environment can be realized in the variable temperature chamber, the food fresh-keeping effect is effectively improved, and the food fresh-keeping time can be prolonged. Moreover, intelligent control over the modified atmosphere fresh-keeping device can be enhanced through a control system, and user experience is improved.
Description
Technical field
The present invention relates to a kind of air-conditioning fresh-keeping device, its control method and there is the refrigerator of this device, belonging to household electrical appliance technical field.
Background technology
Refrigerator is a kind of conventional household electrical appliance, is used for storing various food, and along with the raising of quality of the life, consumer is also more and more higher to the fresh-keeping requirement storing food.In the research of preservation technique, fresh food is difficult to the reason of permanent preservation and is mainly, and depositing food temperature can constantly heat up voluntarily, humidity strengthens, and the oxygen in air can be utilized to carry out Repiration, cause that nutrient substance consumes excessively, and air pressure is conducive to the production of noxious bacteria, breeding.But, when low temperature, low pressure, hypoxia, the growth of mycete, fungus can be suppressed, also can suppress to deposit the breathing of fresh food (such as fruit and vegerable class, meat), it is prevented that food spoilage.And rare gas is as noble gas, generally not with food generation chemical action, have extend the food fresh keeping phase effect.
But, during the application of prior art, alternating temperature space and vacuum freshness retaining space are divided among two spaces, and rare gas preservation technique is also not yet applied in refrigerator art.
Summary of the invention
For solving the problems referred to above, the present invention provides a kind of air-conditioning fresh-keeping device, its control method and has the refrigerator of this device, it is possible to realize low temperature, fresh-keeping environments that low pressure, rare gas regulate simultaneously, to solve food fresh keeping phase undesirable problem.
One of for achieving the above object, an embodiment of the present invention provides a kind of air-conditioning fresh-keeping device, including sealable temperature-changing chamber, described temperature-changing chamber is provided with the refrigeration air door for introducing cold air, described air-conditioning fresh-keeping device also includes the vacuum pump and the air accumulator that are communicated in described temperature-changing chamber, and described air accumulator internal memory contains rare gas；
Wherein, after described refrigeration air door is closed, described vacuum pump is closed after opening and being discharged by the gas in described temperature-changing chamber, and described air accumulator discharges described rare gas and enters described temperature-changing chamber.
As a further improvement on the present invention, described air-conditioning fresh-keeping device also includes control system, and described control system is for controlling the opening and closing of described vacuum pump, the work of described air accumulator and described refrigeration air door.
As a further improvement on the present invention, described temperature-changing chamber also includes the door body for controlling described temperature-changing chamber opening and closing, described control system is configured to, described vacuum pump can be controlled when described door body is closed and described air accumulator is opened, control described vacuum pump when described door body is opened and described air accumulator is not turned on.
As a further improvement on the present invention, described control system is additionally operable to detect the pressure of described temperature-changing chamber, when current first force value of described temperature-changing chamber is not more than the first preset pressure value, described control system controls described vacuum pump and closes, and current second force value of the described control system control described air accumulator release described rare gas described temperature-changing chamber of entrance extremely described temperature-changing chamber is not less than the second preset pressure value, described control system controls described air accumulator and closes, and described second preset pressure value is more than described first preset pressure value.
As a further improvement on the present invention, described control system is additionally operable to detect the temperature in described temperature-changing chamber, and when the temperature in described temperature-changing chamber is higher than preset temperature value, described control system controls described refrigeration door opening so that cold air enters described temperature-changing chamber.
One of for achieving the above object, an embodiment of the present invention additionally provides a kind of refrigerator, and described refrigerator comprises air-conditioning fresh-keeping device as above.
One of for achieving the above object, an embodiment of the present invention additionally provides the control method of a kind of air-conditioning fresh-keeping device, described air-conditioning fresh-keeping device includes sealable temperature-changing chamber, described temperature-changing chamber is provided with the refrigeration air door for introducing cold air, described air-conditioning fresh-keeping device also includes the vacuum pump and the air accumulator that are communicated in described temperature-changing chamber, described air accumulator internal memory contains rare gas, and described control method comprises the following steps:
A, activation controlled atmosphere pattern；
B, close described refrigeration air door；
C, control described vacuum pump work, by described temperature-changing chamber gas discharge after, control described vacuum pump close；
D, control described air accumulator discharge described rare gas enter described temperature-changing chamber.
As a further improvement on the present invention, described temperature-changing chamber also includes the door body for controlling described temperature-changing chamber opening and closing, and described step " a, activation controlled atmosphere pattern " specifically includes:
A1, send the startup order of described controlled atmosphere pattern；
A2, detect whether described door body closes, when detecting that described door body is closed, perform step a3, when detecting that described door body is opened, terminate described startup and order；
A3: perform described startup and order, activate described controlled atmosphere pattern.
As a further improvement on the present invention, described step " c, control described vacuum pump run, by described temperature-changing chamber gas discharge after, control described vacuum pump close " specifically include:
C1, the first preset pressure value is set；
C2, control described vacuum pump work, by described temperature-changing chamber gas discharge；
C3, detect current first force value of described temperature-changing chamber, and relatively described current first force value and the magnitude relationship of described first preset pressure value, when described current first force value is more than the first preset pressure value, returns and perform step c2；When described current first force value is not more than the first preset pressure value, perform step c4；
C4, control described vacuum pump close.
As a further improvement on the present invention, described step " d, control described air accumulator discharge described rare gas enter described temperature-changing chamber " specifically include:
D1, the second preset pressure value is set；
D2, control described air accumulator work, discharge described rare gas enter described temperature-changing chamber；
D3, detect current second force value of described temperature-changing chamber, and relatively described current second force value and the magnitude relationship of described second preset pressure value, when described current second force value is less than the second preset pressure value, returns and perform step d2；When described current second force value is not less than the second preset pressure value, perform step d4；
D4, control described air accumulator close.
Compared with prior art, the present invention has following Advantageous Effects: 1) can realize the fresh-keeping environments of alternating temperature indoor low temperature, low pressure and rare gas controlled atmosphere simultaneously, reduce the Repiration of bacteria breed, suppression fresh food, effectively strengthen effect of food preservation and increase the food fresh keeping phase；2) air-conditioning fresh-keeping device is effectively controlled by control system, strengthens sensitivity and the intellectuality of air-conditioning fresh-keeping device, increases Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air-conditioning fresh-keeping device of one embodiment of the invention；
Fig. 2 is the exploded perspective view of the air-conditioning fresh-keeping device of one embodiment of the invention；
Fig. 3 is the flow chart of the control method of the air-conditioning fresh-keeping device of one embodiment of the invention.
Detailed description of the invention
Describe the present invention below with reference to detailed description of the invention shown in the drawings.But these embodiments are not limiting as the present invention, those of ordinary skill in the art is all contained in protection scope of the present invention according to the made structure of these embodiments, method or conversion functionally.
Being the schematic diagram of the air-conditioning fresh-keeping device of one embodiment of the invention referring to Fig. 1 and Fig. 2, Fig. 1, Fig. 2 is the exploded perspective view of the air-conditioning fresh-keeping device of one embodiment of the invention.Air-conditioning fresh-keeping device 100 includes sealable temperature-changing chamber 10, and described temperature-changing chamber 10 is used for holding food.In this embodiment, described temperature-changing chamber 10 includes the staving 12 of preservation drawer body 11 and front opening, and described preservation drawer body 11 can enter in described staving 12 from the front end of described staving 12, and described temperature-changing chamber 10 can pass through described preservation drawer body 11 and open or close.Described temperature-changing chamber 10 be provided with refrigeration air door 123, described refrigeration air door 123 be set to can opening and closing, when opening described refrigeration air door 123, described temperature-changing chamber 10 can introduce cold wind from refrigerating plant；And when described temperature-changing chamber 10 is closed, described temperature-changing chamber 10 can be made to seal by closing described refrigeration air door 123.Described temperature-changing chamber 10 by the restriction of the present embodiment and accompanying drawing, in other embodiments, also can be set to other sealable article-storage devices by the shape of described temperature-changing chamber 10, structure etc..
Described air-conditioning fresh-keeping device 100 also includes the vacuum pump 20 and the air accumulator 30 that are communicated in described temperature-changing chamber 10, described vacuum pump 20 is set to be extracted out by the gas in described temperature-changing chamber 10, described air accumulator 30 internal memory contains rare gas, and the releasable described rare gas of described air accumulator 30 enters in described temperature-changing chamber 10.When described air-conditioning fresh-keeping device 100 needs that the food in described temperature-changing chamber 10 is carried out controlled atmosphere, described refrigeration air door 123 is closed, then the gas in described temperature-changing chamber 10 is discharged by described vacuum pump 20, air pressure in described temperature-changing chamber 10 reduces along with the discharge of gas, after the gas in described temperature-changing chamber 10 is discharged, described air accumulator 30 is opened and is discharged described rare gas and enters in described temperature-changing chamber 10.The air-conditioning fresh-keeping device of an embodiment of the present invention, the fresh-keeping environments for low temperature, low pressure and rare gas controlled atmosphere in temperature-changing chamber can be realized simultaneously, thus reducing the Repiration of bacteria breed, suppression fresh food, effectively strengthening effect of food preservation and increasing the food fresh keeping phase.
There is numerous embodiments in the connection between described vacuum pump 20 and described temperature-changing chamber 10 and between described air accumulator 30 and described temperature-changing chamber 10, it is possible to is be directly connected to, it is also possible to for being indirectly connected with, not by the restriction of embodiment and accompanying drawing.In the embodiment shown in Figure 2, described temperature-changing chamber 10 is provided with first interface 121, described vacuum pump 20 has been provided with bleeding point 21 and air vent 22, described first interface 121 is tightly connected with described bleeding point 21, when described vacuum pump 20 works, can pass through described first interface 121, the gas in described temperature-changing chamber 10 is extracted out by bleeding point 21, and discharges to temperature-changing chamber 10 outside by described air vent 22.Described temperature-changing chamber 10 is additionally provided with the second interface 122, described air accumulator 30 includes the tank body and the gas outlet 31 that store described rare gas, described gas outlet 31 is connected with described second interface 122, when described air accumulator 30 works, described air accumulator 30 discharges described rare gas, and described rare gas enters described temperature-changing chamber 10 by described gas outlet 31 and the second interface 122.
In an embodiment of the present invention, described first interface 121 can be arranged independently of one another with described second interface 122, in other embodiments, described temperature-changing chamber 10 can be provided only with an interface, described vacuum pump 20 is connected by having the pipeline of three-way valve with described interface with described air accumulator 30, there are the routine techniques means that described pipeline is those skilled in the art of three-way valve, do not repeat them here.Additionally, in the embodiment shown in the figures, described first interface 121, described second interface 122, described vacuum pump 20 and described air accumulator 30 are arranged on the rear end cap 120 of described staving 12, so can increase the aesthetics of described air-conditioning fresh-keeping device 100, and conveniently install, increase practicality.
Described air-conditioning fresh-keeping device 100 also includes control system, described control system includes pattern start key, described pattern start key sends the controlled atmosphere pattern of described air-conditioning fresh-keeping device 100 and starts order, described control system can receive described startup and order, and activate described controlled atmosphere pattern, the running of described controlled atmosphere pattern includes described refrigeration air door 123 and closes, gas in described temperature-changing chamber 10 is discharged the air pressure to reduce described temperature-changing chamber 10 by described vacuum pump 20, after the gas in described temperature-changing chamber 10 is discharged, described rare gas in described air accumulator 30 is discharged into described temperature-changing chamber 10, and then realize the controlled atmosphere effect of described air-conditioning fresh-keeping device 100.Certainly, described control system activates described controlled atmosphere pattern also by other modes, and its embodiment is not by the restriction of this embodiment.It addition, described temperature-changing chamber 10 also includes the door body for controlling the opening and closing of described temperature-changing chamber 10, in the embodiment shown in Figure 2, described door body is described preservation drawer body 11.Described control system can be additionally used in the opening and closing identifying described door body, and after described control system receives described startup order, if described door body is closed, described control system can control described vacuum pump 20 and described air accumulator 30 is opened；And if described door body is not turned off, described control system controls described vacuum pump 20 and described air accumulator 30 is not turned on.So, the present invention can make user when opening described temperature-changing chamber and picking and placeing food, controls described vacuum pump and described air accumulator is not operated, thus avoiding energy waste and use cost to increase.
Described control system can be additionally used in the opening and closing controlling described refrigeration air door 123, and control the work of described vacuum pump 20 and described air accumulator 30, when described controlled atmosphere pattern is activated, described refrigeration air door 123 is closed, described control system controls described vacuum pump 20 and runs to discharge the gas in described temperature-changing chamber 10, after the gas in described temperature-changing chamber 10 is discharged, described control system controls described air accumulator 30 and opens to discharge the described rare gas described temperature-changing chamber 10 of entrance.When being embodied as, being provided with electromagnetic valve (not shown) between described air accumulator 30 and described temperature-changing chamber 10, described control system can realize the opening and closing of described air accumulator 30 by controlling described electromagnetic valve.
Concrete; be there is numerous embodiments by described control system in the control of the work of described refrigeration air door 123, vacuum pump 20 and described air accumulator 30; pressure change, changes in flow rate, time change etc. all can control the reference factor of described refrigeration air door 123, vacuum pump 20 and described air accumulator 30 opening and closing as described control system; such as; control system can pass through the exhaust air rate of described vacuum pump 20; controlling the operation time of described vacuum pump 20 to realize the control to described vacuum pump 20, these detailed description of the invention should be included within protection scope of the present invention.In an embodiment of the present invention, described set-up of control system has pressure transducer and input module, described pressure transducer is for detecting the pressure of described temperature-changing chamber 10, described input module is used for inputting the first preset pressure value P1 ' and the second preset pressure value P2 ', wherein P1 ' < P2 ' < normal atmosphere.When described vacuum pump 20 runs, current first pressure value P 1 of temperature-changing chamber 10 described in described pressure transducer trace detection, as P1≤P1 ', described control system controls described vacuum pump 20 and closes；Otherwise, as P1 > P1 ', described vacuum pump 20 continues to run with and is discharged by the gas in described temperature-changing chamber 10.When the described control system described air accumulator 30 of control works, current second pressure value P 2 of temperature-changing chamber 10 described in described pressure transducer trace detection, as P2 >=P2 ', described control system controls described air accumulator 30 and closes；Otherwise, as P2 < P2 ', described control system controls described air accumulator 30 and continues to discharge described rare gas in described temperature-changing chamber 10.The described air-conditioning fresh-keeping device of the present invention, is possible not only to realize the fresh-keeping environments of low temperature, low pressure and rare gas controlled atmosphere simultaneously, and by the control of control system, it is achieved the intelligent management of air-conditioning fresh-keeping device, and add Consumer's Experience.
Described air-conditioning fresh-keeping device 100 also includes relief valve (not shown), and described relief valve connects the inside of described temperature-changing chamber 10 with outside, and described control system controls the open and close of described relief valve.When user open described temperature-changing chamber 10 pick and place food time, described control system control described relief valve open so that described temperature-changing chamber 10 outside gas entrance described temperature-changing chamber 10；When described temperature-changing chamber 10 is closed, described control system controls described relief valve and closes, so that described temperature-changing chamber 10 is in sealing state.Described relief valve may be disposed at described refrigeration air door 123 place, so arranging, described relief valve can connect the inside of described temperature-changing chamber 10 and described refrigerating plant, when described relief valve is opened, cold wind can be made to enter described temperature-changing chamber 10, so that the maintenance low temperature environment of described temperature-changing chamber 10.
Described control system also includes temperature detecting module 401, described temperature detecting module 401 is for detecting the temperature in described temperature-changing chamber 10, when described temperature detecting module 401 detects the temperature in described temperature-changing chamber 10 higher than preset temperature value, described control system controls described refrigeration air door 123 and opens to introduce cold wind in described temperature-changing chamber 10, so that the temperature in described temperature-changing chamber 10 reduces.
It addition, an embodiment of the present invention additionally provides a kind of refrigerator, described refrigerator includes air-conditioning fresh-keeping device 100 as above.Described air-conditioning fresh-keeping device 100 may be disposed at the refrigeration chamber of described refrigerator, it is possible to the described refrigeration compartment independent of described refrigerator is arranged.
An embodiment of the present invention additionally provides the control method of a kind of air-conditioning fresh-keeping device, referring to Fig. 3 and be the flow chart of control method of air-conditioning fresh-keeping device of one embodiment of the invention in conjunction with Fig. 2, Fig. 3.Described air-conditioning fresh-keeping device 100 includes sealable temperature-changing chamber 10, described temperature-changing chamber 10 is provided with the refrigeration air door 123 for introducing cold air, described air-conditioning fresh-keeping device 100 also includes the vacuum pump 20 and the air accumulator 30 that are communicated in described temperature-changing chamber 10, described air accumulator 30 internal memory contains rare gas, and described control method comprises the following steps:
A, activation controlled atmosphere pattern；
B, close described refrigeration air door 123；
C, control described vacuum pump 20 and work, after the gas in described temperature-changing chamber 10 is discharged, control described vacuum pump 20 and close；
D, control described air accumulator 30 discharge described rare gas enter described temperature-changing chamber 10.
Concrete, described temperature-changing chamber 10 also includes the door body for controlling the opening and closing of described temperature-changing chamber 10, and described air-conditioning fresh-keeping device 100 also includes control system, and described control system includes pattern start key, and described step " a, activation controlled atmosphere pattern " specifically includes:
A1, described pattern start key send the startup order of described controlled atmosphere pattern；
A2, described control system detect whether described door body closes, and when detecting that described door body is closed, perform step a3, when detecting that described door body is opened, terminate described startup and order；
A3, perform described start order, activate described controlled atmosphere pattern.
It addition, described control system also includes input module and pressure transducer, described step " c controls described vacuum pump 20 and works, and after being discharged by the gas in described temperature-changing chamber 10, controls described vacuum pump 20 and closes " specifically includes:
C1, the first preset pressure value P1 ' is set by described input module；
C2, described control system control described vacuum pump 20 and work, and are discharged by the gas in described temperature-changing chamber 10；
C3, by current first pressure value P 1 of temperature-changing chamber 10 described in described pressure transducer trace detection, the magnitude relationship of relatively more described current first pressure value P 1 and described first preset pressure value P1 ', as P1 > P1 ', return and perform step c2；As P1≤P1 ', perform step c4；
C4, described control system control described vacuum pump 20 and close.
And described step " d, control described air accumulator 30 discharge described rare gas and enter described temperature-changing chamber 10 " specifically includes:
D1, the second preset pressure value P2 ' is set by described input module；
D2, described control system control described air accumulator 30 and work, and discharge described rare gas and enter described temperature-changing chamber 10；
D3, by current second pressure value P 2 of temperature-changing chamber 10 described in described pressure transducer trace detection, relatively more described current second pressure value P 2 and the magnitude relationship of described second preset pressure value P2 ', as P2 < P2 ', return and perform step d2；As P2 >=P2 ', perform step d4；
D4, control described air accumulator 30 and close.
Compared with prior art, the present invention has following Advantageous Effects: 1) can realize the fresh-keeping environments of alternating temperature indoor low temperature, low pressure and rare gas controlled atmosphere simultaneously, reduce the Repiration of bacteria breed, suppression fresh food, effectively strengthen effect of food preservation and increase the food fresh keeping phase；2) air-conditioning fresh-keeping device is effectively controlled by control system, strengthens sensitivity and the intellectuality of air-conditioning fresh-keeping device, increases Consumer's Experience.
It is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that.
Those listed above detailed description is only for illustrating of the feasibility embodiment of the present invention; they also are not used to limit the scope of the invention, and all should be included within protection scope of the present invention without departing from the skill of the present invention equivalent implementations made of spirit or change.
Claims (10)
1. an air-conditioning fresh-keeping device, including sealable temperature-changing chamber, it is characterised in that described temperature-changing chamber is provided with the refrigeration air door for introducing cold air, described air-conditioning fresh-keeping device also includes the vacuum pump and the air accumulator that are communicated in described temperature-changing chamber, and described air accumulator internal memory contains rare gas；
Wherein, after described refrigeration air door is closed, described vacuum pump is closed after opening and being discharged by the gas in described temperature-changing chamber, and described air accumulator discharges described rare gas and enters described temperature-changing chamber.
2. air-conditioning fresh-keeping device according to claim 1, it is characterised in that described air-conditioning fresh-keeping device also includes control system, described control system is for controlling the opening and closing of described vacuum pump, the work of described air accumulator and described refrigeration air door.
3. air-conditioning fresh-keeping device according to claim 2, it is characterized in that, described temperature-changing chamber also includes the door body for controlling described temperature-changing chamber opening and closing, described control system is configured to, described vacuum pump can be controlled when described door body is closed and described air accumulator is opened, control described vacuum pump when described door body is opened and described air accumulator is not turned on.
4. air-conditioning fresh-keeping device according to claim 2, it is characterized in that, described control system is additionally operable to detect the pressure of described temperature-changing chamber, when current first force value of described temperature-changing chamber is not more than the first preset pressure value, described control system controls described vacuum pump and closes, and current second force value of the described control system control described air accumulator release described rare gas described temperature-changing chamber of entrance extremely described temperature-changing chamber is not less than the second preset pressure value, described control system controls described air accumulator and closes, described second preset pressure value is more than described first preset pressure value.
5. air-conditioning fresh-keeping device according to claim 2, it is characterized in that, described control system is additionally operable to detect the temperature in described temperature-changing chamber, and when the temperature in described temperature-changing chamber is higher than preset temperature value, described control system controls described refrigeration door opening so that cold air enters described temperature-changing chamber.
6. a refrigerator, it is characterised in that described refrigerator comprises the air-conditioning fresh-keeping device as described in any one of claim 1 ~ 5.
7. the control method of an air-conditioning fresh-keeping device, described air-conditioning fresh-keeping device includes sealable temperature-changing chamber, it is characterized in that, described temperature-changing chamber is provided with the refrigeration air door for introducing cold air, described air-conditioning fresh-keeping device also includes the vacuum pump and the air accumulator that are communicated in described temperature-changing chamber, described air accumulator internal memory contains rare gas, and described control method comprises the following steps:
A, activation controlled atmosphere pattern；
B, close described refrigeration air door；
C, control described vacuum pump work, by described temperature-changing chamber gas discharge after, control described vacuum pump close；
D, control described air accumulator discharge described rare gas enter described temperature-changing chamber.
8. the control method of air-conditioning fresh-keeping device according to claim 7, it is characterised in that described temperature-changing chamber also includes the door body for controlling described temperature-changing chamber opening and closing, and described step " a, activation controlled atmosphere pattern " specifically includes:
A1, send the startup order of described controlled atmosphere pattern；
A2, detect whether described door body closes, when detecting that described door body is closed, perform step a3, when detecting that described door body is opened, terminate described startup and order；
A3: perform described startup and order, activate described controlled atmosphere pattern.
9. the control method of air-conditioning fresh-keeping device according to claim 7, it is characterised in that described step " c, control described vacuum pump run, by described temperature-changing chamber gas discharge after, control described vacuum pump close " specifically include:
C1, the first preset pressure value is set；
C2, control described vacuum pump work, by described temperature-changing chamber gas discharge；
C3, detect current first force value of described temperature-changing chamber, and relatively described current first force value and the magnitude relationship of described first preset pressure value, when described current first force value is more than the first preset pressure value, returns and perform step c2；When described current first force value is not more than the first preset pressure value, perform step c4；
C4, control described vacuum pump close.
10. the control method of air-conditioning fresh-keeping device according to claim 7, it is characterised in that described step " d, control described air accumulator discharge described rare gas enter described temperature-changing chamber " specifically include:
D1, the second preset pressure value is set；
D2, control described air accumulator work, discharge described rare gas enter described temperature-changing chamber；
D3, detect current second force value of described temperature-changing chamber, and relatively described current second force value and the magnitude relationship of described second preset pressure value, when described current second force value is less than the second preset pressure value, returns and perform step d2；When described current second force value is not less than the second preset pressure value, perform step d4；
D4, control described air accumulator close.
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| CN106524642A (en) * | 2016-12-02 | 2017-03-22 | 青岛海尔股份有限公司 | Refrigerating and freezing device |
| CN106524643A (en) * | 2016-12-02 | 2017-03-22 | 青岛海尔股份有限公司 | Cold-storage refrigerating device |
| CN106766519A (en) * | 2016-12-09 | 2017-05-31 | 青岛海尔股份有限公司 | Refrigerating device and its controlled atmosphere control method |
| CN110895084A (en) * | 2019-12-03 | 2020-03-20 | 珠海格力电器股份有限公司 | Refrigerator control method and refrigerator |
| CN111473577A (en) * | 2020-04-17 | 2020-07-31 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
| CN112665269A (en) * | 2021-01-15 | 2021-04-16 | 长虹美菱股份有限公司 | Vacuum chamber control method for refrigerator |
| CN114383359A (en) * | 2020-10-21 | 2022-04-22 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
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Application publication date: 20160727 |