CN102116553B - Refrigerator with temperature varying and/or vacuum preservation system and control method thereof - Google Patents
Refrigerator with temperature varying and/or vacuum preservation system and control method thereof Download PDFInfo
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- CN102116553B CN102116553B CN200910256478.XA CN200910256478A CN102116553B CN 102116553 B CN102116553 B CN 102116553B CN 200910256478 A CN200910256478 A CN 200910256478A CN 102116553 B CN102116553 B CN 102116553B
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Abstract
The invention relates to a refrigerator with a temperature varying and/or vacuum dual preservation system, which comprises a box body, a refrigerating chamber, a freezing chamber and a temperature varying chamber, wherein a vacuum preservation system is arranged on a temperature varying preservation drawer to form a storage space with temperature varying and vacuum dual preservation functions. The control method provided by the invention comprises the following steps of: selecting temperature varying and/or vacuum preservation functions; selecting temperature varying; inputting refrigeration; detecting a temperature control sensor, and closing an air door when the set temperature is reached; automatically starting a vacuum pump to vacuumize; detecting the pressure inside the preservation drawer, and stopping the operation of the vacuum pump when the set pressure is reached. By adopting the technical scheme, the preservation drawer with the temperature varying preservation and/or vacuum preservation dual functions on the refrigerator is realized, and the space is fully utilized; and users can select different low temperatures according to different foods, the autonomy of function selection by the users is increased, and the requirement of user individuation is satisfied.
Description
Technical field
The present invention relates to a kind of refrigerator, particularly relate to a kind of refrigerator with alternating temperature and/or vacuum fresh-keeping system, in addition, the invention still further relates to a kind of control method with the refrigerator of alternating temperature and/or vacuum fresh-keeping system.
Background technology
In Study on preservation technique, FF is difficult to permanent reason of preserving, store food temperature can constantly raise voluntarily, humidity strengthens, and air pressure is conducive to growth, the breeding of harmful bacteria, but under low temperature, low pressure condition, can kill or the existence of mould fungus inhibition, fungi, can suppress the breathing of depositing FF (as plant, meat), prevent dehydration, go mouldy.
The application of prior art is that alternating temperature space and vacuum freshness retaining space are separated in two spaces, alternating temperature is separately as functional areas, vacuum freshness retaining is separately as functional areas, user needs for requirement chamber between different spaces of different food products, to carry out needed function according to own, and two functions occupy two spaces, also relatively waste.
In addition, if user may also need the storage of vacuum freshness retaining for the storage of some food in needs alternating temperature, current function is arranged and can not be made user enjoy easily these functions simultaneously.
The documents patent No. 200720037269.2, utility model title is refrigerator vaccum freshness box, patentee Hefei Mei Ling company limited by shares.It discloses a kind of refrigerator vaccum freshness box, is arranged on refrigerator cold-storage indoor, the closed enclosure being formed by box body and lid, and the back of lid arranges aspirating hole, and described closed enclosure is placed in refrigerator compartment.The temperature of the refrigerator vaccum freshness box of this structure can not regulate, and cannot meet user needs to select Different hypothermia to carry out the requirement of vacuum freshness retaining according to different food is different, does not reach the requirement of hommization.
Summary of the invention
The present invention is based on above-mentioned defect of the prior art, in order to address the above problem, the present invention is the fresh-keeping and effective combination of vacuum freshness retaining by alternating temperature, makes full use of storage area;
Another object of the present invention is, according to user's different choice needs, for different foodstuff storings, can select applicable cryogenic temperature, selects low temperature and/or vacuum freshness retaining function, has improved the independence that user selects function.
In order to realize goal of the invention of the present invention, the present invention adopts following technical scheme:
A kind of refrigerator with the vacuum fresh-keeping system that relents, comprise casing, refrigerating chamber, refrigerating chamber, temperature-changing chamber, temperature varying system comprises preservation drawer, air door cover plate, temperature control inductor and temperature selection key, it is characterized in that: the storage area that vacuum fresh-keeping system forms the vacuum freshness retaining function that relents is set on preservation drawer, and vacuum fresh-keeping system comprises vacuum control unit, vavuum pump, connecting duct and pressure-detecting device.
Preservation drawer comprises is with handled drawer front, drawer bucket, drawer cover plate, and air door cover plate is arranged on the temperature-changing chamber inwall adjacent with refrigerating chamber, and blower fan connects refrigerating chamber to introduce cold wind.
Air door opens and closes and is controlled by temperature selection key and temperature control inductor.
The vavuum pump of vacuum fresh-keeping system is arranged on the drawer back side, and the tube connector of vavuum pump one end is at drawer inner opening.
Vacuum control unit comprises button and the vavuum pump control device on preservation drawer function Selection Floater.
Vacuum pressure detection apparatus is mounted in temperature-changing chamber drawer upward pressure switch, regularly detects the force value of alternating temperature vacuum system.
Preservation drawer is provided with gas bleeder valve, and gas bleeder valve is comprised of the hole of the projection on drawer handle and the relevant position on drawer front.
The control method with the refrigerator of the vacuum fresh-keeping system that relents of the present invention, refrigerator has refrigerating chamber, refrigerating chamber and temperature-changing chamber, and the vacuum fresh-keeping system that relents comprises temperature varying system and vacuum system, and this control method comprises the steps:
A, selected alternating temperature vacuum freshness retaining function;
B, carry out alternating temperature selection;
C, air door are opened, and refrigeration inputs to preservation drawer;
D, temperature control inductor detect, and reach design temperature, and air door is closed;
E, automatically start vavuum pump, preservation drawer is vacuumized;
F, preservation drawer internal pressure is detected, reach setting pressure, vavuum pump quits work.
Further, carry out in the step of alternating temperature selection, according to the article that store, have more than one cryogenic temperature available.
In pressure detecting step, by pressure sensor, the pressure of preservation drawer is detected, the pressure of drawer is when 0.7-0.8atm, and vavuum pump quits work.
Preservation drawer is after picking and placeing article, and pressure sensor detects the pressure of preservation drawer, and the pressure of drawer is during higher than 0.7-0.8atm, and vavuum pump starts again, circulation E, F step.
The control method with the refrigerator of the vacuum fresh-keeping system that relents, in pressure detecting step, another kind of detection scheme is to be timer by vacuum pressure detection apparatus, calculates the force value of alternating temperature vacuum system by starting the time of vavuum pump.
Another kind of the present invention has the refrigerator of alternating temperature and/or vacuum fresh-keeping system, comprise casing, refrigerating chamber, refrigerating chamber, temperature-changing chamber, alternating temperature preservation drawer is as outer interlayer, alternating temperature fresh-keeping system comprises preservation drawer, air door cover plate, temperature control inductor and temperature selection key, in alternating temperature preservation drawer, be provided with vacuum refreshing drawer as internal portioning layer, vacuum control unit, vavuum pump, connecting duct and pressure-detecting device are located on the vacuum refreshing drawer of internal portioning layer.
The fresh-keeping temperature-changing chamber space that coexists of vacuum freshness retaining and alternating temperature, belongs to respectively inside and outside interlayer, and inside and outside interlayer is gapped.
Another kind of the present invention has the control method of the refrigerator of alternating temperature and/or vacuum fresh-keeping system, and this control method is as follows:
When selecting to relent vacuum freshness retaining function, refrigerator control system carries out as follows:
(1), carrying out the fresh-keeping temperature of alternating temperature selects;
(2), the air door of outer interlayer opens, refrigeration inputs to preservation drawer;
(3), temperature control inductor detects, and reaches design temperature, air door is closed;
(4), automatically start the vavuum pump on internal portioning layer, internal portioning layer drawer is vacuumized;
(5) internal portioning layer drawer internal pressure is detected, reach setting pressure, vavuum pump quits work.
Or, when only selecting alternating temperature fresh-keeping function, refrigerator control system operation (1) to (3) step;
Or, when only selecting vacuum freshness retaining function, refrigerator control system operation (4) to (5) step;
Further, internal portioning layer drawer pressure is being carried out, in detecting step, by pressure sensor, the pressure of preservation drawer being detected, the pressure of drawer is when 0.7-0.8atm, and vavuum pump quits work.
By adopting above-mentioned technical scheme, refrigerator of the present invention arranges preservation by low temperature system, vacuum fresh-keeping system in temperature-changing chamber, realize the storage area on refrigerator with the fresh-keeping and/or vacuum freshness retaining function of alternating temperature, make full use of space, and user can be different according to different Food choices cryogenic temperature, improved the independence that user selects function.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Fig. 1 is storage area position view on refrigerator that the present invention has alternating temperature and/or vacuum fresh-keeping system;
Fig. 2 is the refrigerator side cutaway view of the present invention storage area with the vacuum fresh-keeping system that relents;
Fig. 3 is the fresh-keeping function Selection Floater figure that the present invention has the vacuum fresh-keeping system that relents;
Fig. 4 is the control method figure with the vacuum freshness retaining function refrigerator that relents of the present invention;
Fig. 5 is the control method figure with alternating temperature and/or vacuum freshness retaining function refrigerator of the present invention.
In Fig. 1, the part of label representative is: 1. refrigerator, 2. vacuum/temperature-changing chamber, 3. drawer front, 31. handles, 32. rubber stoppers, 4. drawer bucket, 5. drawer heat-preserving cover plate, 51. function Selection Floaters, 6. air door cover plate, 7. vavuum pump, 8. connecting duct, 9. pressure-detecting device, 10. temperature control inductor, 11. vavuum pump control device;
The specific embodiment
Below in conjunction with accompanying drawing, a kind of refrigerator and control method thereof with alternating temperature and/or vacuum fresh-keeping system provided by the invention is described in detail.
Side by side combination refrigerator 1 shown in Figure 1, comprises casing, refrigerating chamber, refrigerating chamber, temperature-changing chamber, and vacuum and/or preservation by low temperature system are arranged in temperature-changing chamber, and the left side of temperature-changing chamber is refrigerating chamber, is refrigerating chamber above.
The side perspective view of the storage area of vacuum freshness retaining shown in Figure 2 and preservation by low temperature system in refrigerator is refrigerator most preferred embodiment of the present invention.Temperature varying system comprises preservation drawer 2, air door cover plate 6, temperature control inductor 9 and temperature selection key, temperature selection key is located at function Selection Floater 51, function Selection Floater 51 is arranged on the front end of variable temperature drawer heat-preserving cover plate, the storage area that vacuum fresh-keeping system forms the vacuum freshness retaining function that relents is set on preservation drawer, and vacuum fresh-keeping system comprises vavuum pump control device 11, vavuum pump 7, connecting duct 8 and pressure-detecting device 9.
Preservation drawer 2 comprises is with handled drawer front 3, drawer bucket 4, drawer cover plate 5, air door cover plate 6 is arranged on the temperature-changing chamber inwall adjacent with refrigerating chamber, air door opens and closes and is controlled by temperature selection key and temperature control inductor, when user selects alternating temperature, control, blower fan is opened, and introduces cold wind from adjacent refrigerating chamber, when the temperature of storage area reaches the temperature requirement of setting, a signal of temperature control inductor feedback is to computer board, and computer board is controlled air door and closed, and enters the program that the next one vacuumizes.
The vavuum pump of vacuum fresh-keeping system is arranged on the drawer back side, vavuum pump Bonding pressure conduit 8 and vavuum pump control device 11, and connecting duct is at preservation drawer inner opening.Vacuum pressure detection apparatus is mounted in temperature-changing chamber drawer upward pressure switch, regularly detects the force value of alternating temperature vacuum system.
When needs are opened preservation drawer and picked and placeed food, for pressure release, drawer front arranges pressure balance releasing device, i.e. relief valve, and rubber stopple 32 is arranged on the drawer handle 31 of movable upset.The handle 31 that overturns while opening drawer, rubber stopple is opened, and discharges the pressure of drawer inside, pulls out drawer; Closed drawer, drawer handle reset rubber stopple is closed, and preservation drawer forms confined space.
Fridge freshness retaining function Selection Floater figure shown in Figure 3,1. four kinds of different temperatures T1, T2, T3 and T4,2., 3., 4. representing, middle three indicator lamps are respectively that low temperature selects normal operation indication (green), vacuum to select normal operation indication (green), fault alarm indication (redness), and right side is START and OFF key.
Referring to Fig. 4, being the control method with the refrigerator of the vacuum fresh-keeping system that relents of the present invention, is the most preferred embodiment of fridge freshness retaining control method of the present invention, is used in conjunction with the refrigerator structure embodiment of the present invention shown in Fig. 2.
This control method comprises the steps:
A, the selected vacuum freshness retaining function that relents;
B, carry out alternating temperature selection;
C, air door are opened, and refrigeration inputs to preservation drawer;
D, temperature control sensor detect, and reach design temperature, and air door is closed;
E, automatically start vavuum pump, preservation drawer is vacuumized;
F, preservation drawer internal pressure is detected, reach setting pressure, vavuum pump quits work.
Particularly, refrigerator has refrigerating chamber, refrigerating chamber and temperature-changing chamber, and the vacuum fresh-keeping system that relents comprises temperature varying system and vacuum system, and preservation by low temperature and vacuum freshness retaining are made a space and be located in same interlayer.
User selects between the functional areas of temperature, and each function is to there being T1, T2, T3, the temperature that T4 is different.User is according to storing the different different cryogenic temperatures of Food choice, preservation by low temperature system selects to freeze input according to the different temperature of user, to guarantee there is a relatively low temperature for the vegetables and fruits of depositing, after a period of time, temperature meets the requirements of T1 or T2 or T3 or T4, temperature control inductor feedback signal, connects air door and closes;
Now, refrigerator control system is to signal of vacuum fresh-keeping system, and vavuum pump is opened automatically, and this space is vacuumized, continue for some time, pressure sensor detects the now atmospheric pressure value of preservation drawer, makes the air pressure in this space lower than an atmospheric pressure, such as 0.7-0.08atm, keep a relative vacuum, if reach the requirement of pressure setting, vavuum pump quits work, and the thing of depositing can be persisted relatively in this inside, lower oxygen space.
Due to folding and unfolding in drawer or take out the occasion that food makes the pressure in drawer become higher than setting, force value in pressure sensor detects drawer is not within the scope of 0.7-0.08atm time, again utilize the driving of vavuum pump to aspirate air and reduce pressure, until pressure reaches below setting.In pressure detecting step, be preferentially that working pressure sensor carries out pressure detecting, vacuum pressure detection apparatus also can adopt timer in addition, calculates the force value of alternating temperature vacuum system by starting the time of vavuum pump and flow velocity that vavuum pump vacuumizes.
Referring to the control method schematic diagram of the refrigerator with alternating temperature and/or vacuum fresh-keeping system described in Fig. 5, be the second embodiment of the fresh-keeping control method of the present invention.
Scheme shown in Fig. 4 refers to that alternating temperature space and vacuum freshness retaining space belong to the same interlayer in same space, first carry out alternating temperature select fresh-keeping, after vacuumize fresh-keepingly, for user's selection each time, all can carry out alternating temperature refrigeration and vacuum freshness retaining.
Scheme shown in Fig. 5, the fresh-keeping and vacuum freshness retaining of alternating temperature is made in to same space but belongs to different interlayers, for the different food that leaves the inside in, carrying out different functions selects, the space at food place belongs to the space of vacuum freshness retaining, outside one deck is made alternating temperature space, and the article of storage are placed in internal portioning layer.According to user's selection, can only select cryogenic system to use separately alternating temperature fresh-keeping, also can only select vacuum freshness retaining to carry out independent vacuum freshness retaining, also can two kinds of functions select simultaneously, realize for storing the effectively fresh-keeping of food.
Refrigerator described in the second embodiment comprises casing, refrigerating chamber, refrigerating chamber, temperature-changing chamber, alternating temperature preservation drawer is as outer interlayer, alternating temperature fresh-keeping system comprises preservation drawer, air door cover plate, temperature control inductor and temperature selection key, in alternating temperature preservation drawer, be provided with vacuum refreshing drawer as internal portioning layer, vacuum control unit, vavuum pump, connecting duct and pressure-detecting device are located on the vacuum refreshing drawer of internal portioning layer.The fresh-keeping temperature-changing chamber space that coexists of vacuum freshness retaining and alternating temperature, belongs to respectively inside and outside interlayer, and inside and outside interlayer is gapped, generally between 12mm--15mm.
The control method described in embodiment bis-with the refrigerator of alternating temperature and/or vacuum fresh-keeping system, this control method is as follows:
When selecting to relent vacuum freshness retaining function, refrigerator control system carries out as follows simultaneously:
(1), carrying out the fresh-keeping temperature of alternating temperature selects;
(2), the air door of outer interlayer opens, refrigeration inputs to preservation drawer;
(3), temperature control inductor detects, and reaches design temperature, air door is closed;
(4), automatically start the vavuum pump on internal portioning layer, internal portioning layer drawer is vacuumized;
(5), pressure sensor detects the pressure of internal portioning layer, reaches setting pressure, vavuum pump quits work.
Or, when only selecting alternating temperature fresh-keeping function, refrigerator control system operation (1) to (3) step;
Or, when only selecting vacuum freshness retaining function, refrigerator control system operation (4) to (5) step;
Further, internal portioning layer drawer pressure is being carried out, in detecting step, by pressure sensor, the pressure of preservation drawer being detected, the pressure of drawer is when 0.7-0.8atm, and vavuum pump quits work.When owing to picking and placeing stored article, pressure higher than set force value time, again start vavuum pump, operation (4) to (5) step, guarantees the vacuum freshness retaining degree of article.
In sum, by adopting above-mentioned technical scheme, refrigerator of the present invention arranges preservation by low temperature system and/or vacuum fresh-keeping system and control method in temperature-changing chamber, realizes the preservation drawer on refrigerator with the fresh-keeping and/or vacuum freshness retaining function of alternating temperature, makes full use of space; And user can be different according to different Food choices cryogenic temperature, improved the independence that user selects function, meet the demand of user individual.
Certainly, the present invention is not limited to above-mentioned giving an example, the technical scheme it will be apparent to those skilled in the art that, in the situation that not departing from the spirit or scope of the present invention, the present invention is made various modifications and changes in the claims in the present invention and be equal in the scope of replacement, and such modification and change are contained in the present invention.
Claims (10)
1. a refrigerator with the vacuum dual fresh-keeping system that relents, comprise casing, refrigerating chamber, refrigerating chamber, temperature-changing chamber, temperature varying system comprises preservation drawer, air door cover plate, temperature control inductor and temperature selection key, it is characterized in that: the storage area that vacuum fresh-keeping system forms the vacuum dual fresh-keeping function that relents is set on preservation drawer, vacuum fresh-keeping system comprises vacuum control unit, vavuum pump, connecting duct, pressure-detecting device, gas bleeder valve, wherein pressure-detecting device is mounted in preservation drawer upward pressure switch, regularly detect the force value of alternating temperature vacuum system, gas bleeder valve is comprised of the hole of relevant position on the rubber stopper on drawer handle and drawer front.
2. the refrigerator with the vacuum dual fresh-keeping system that relents according to claim 1, it is characterized in that: preservation drawer comprises is with handled drawer front, drawer bucket, drawer cover plate, air door cover plate is arranged on the temperature-changing chamber inwall adjacent with refrigerating chamber, blower fan connects refrigerating chamber to introduce cold wind, air door opens and closes and is controlled by temperature selection key and temperature control inductor, vacuum control unit comprises button and the vavuum pump control device on preservation drawer function Selection Floater, on described preservation drawer function Selection Floater, is also provided with fault alarm indicator lamp.
3. the refrigerator with the vacuum dual fresh-keeping system that relents according to claim 1 and 2, is characterized in that: the vavuum pump of vacuum fresh-keeping system is arranged on the drawer back side, and the connecting duct of vavuum pump one end is at drawer inner opening.
4. according to the control method described in claim 1 with the refrigerator of the vacuum dual fresh-keeping system that relents, this control method comprises the steps:
A, the selected vacuum dual fresh-keeping function that relents;
B, carry out alternating temperature selection;
C, air door are opened, and refrigeration inputs to preservation drawer;
D, temperature control sensor detect, and reach design temperature, and air door is closed;
E, automatically start vavuum pump, preservation drawer is vacuumized;
F, preservation drawer internal pressure is detected, reach setting pressure, vavuum pump quits work.
5. the control method with the refrigerator of the vacuum dual fresh-keeping system that relents according to claim 4, is characterized in that: carry out in the step of alternating temperature selection, according to the article that store, have more than one cryogenic temperature available.
6. the control method with the refrigerator of the vacuum dual fresh-keeping system that relents according to claim 4, it is characterized in that: in pressure detecting step, by pressure switch, the pressure of preservation drawer is detected, the pressure of drawer is when 0.7-0.8a tm, and vavuum pump quits work.
7. the control method with the refrigerator of the vacuum dual fresh-keeping system that relents according to claim 6, it is characterized in that: preservation drawer is after picking and placeing article, pressure switch detects the pressure of preservation drawer, the pressure of drawer is during higher than 0.8a tm, vavuum pump starts again, circulation E, F step.
8. a refrigerator with the vacuum fresh-keeping system that relents, comprise casing, refrigerating chamber, refrigerating chamber, temperature-changing chamber, alternating temperature preservation drawer is as outer interlayer, alternating temperature fresh-keeping system comprises preservation drawer, air door cover plate, temperature control inductor and temperature selection key, it is characterized in that: in alternating temperature preservation drawer, be provided with vacuum refreshing drawer as internal portioning layer, vacuum control unit, vavuum pump, connecting duct, gas bleeder valve and pressure-detecting device are located on the vacuum refreshing drawer of internal portioning layer, the fresh-keeping temperature-changing chamber space that coexists of vacuum freshness retaining and alternating temperature, in belonging to respectively, outer interlayer, inside and outside interlayer is gapped, wherein pressure-detecting device is mounted in the pressure switch on vacuum refreshing drawer, regularly detect the force value of vacuum refreshing drawer, gas bleeder valve is comprised of the hole of relevant position on the rubber stopper on vacuum refreshing drawer handle and its header board.
9. the control method with the refrigerator of the vacuum dual fresh-keeping system that relents according to claim 8, this control method is as follows:
When selecting to relent vacuum freshness retaining function, refrigerator control system carries out as follows:
(1), carrying out the fresh-keeping temperature of alternating temperature selects;
(2), the air door of outer interlayer opens, refrigeration inputs to preservation drawer;
(3), temperature control inductor detects, and reaches design temperature, air door is closed;
(4), automatically start the vavuum pump on internal portioning layer, internal portioning layer drawer is vacuumized;
(5), internal portioning layer drawer internal pressure is detected, reach setting pressure, vavuum pump quits work;
Or, when only selecting alternating temperature fresh-keeping function, refrigerator control system operation (1) to (3) step;
Or, when only selecting vacuum freshness retaining function, refrigerator control system operation (4) to (5) step.
10. the control method with the refrigerator of the vacuum dual fresh-keeping system that relents according to claim 9, it is characterized in that: vacuum refreshing drawer pressure is being carried out in detecting step, by pressure switch, the pressure of preservation drawer is detected, the pressure of drawer is when 0.7-0.8a tm, and vavuum pump quits work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910256478.XA CN102116553B (en) | 2009-12-31 | 2009-12-31 | Refrigerator with temperature varying and/or vacuum preservation system and control method thereof |
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| CN200910256478.XA CN102116553B (en) | 2009-12-31 | 2009-12-31 | Refrigerator with temperature varying and/or vacuum preservation system and control method thereof |
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| CN102116553B true CN102116553B (en) | 2014-12-10 |
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