CN103851850B - Refrigerator and its method of work - Google Patents
Refrigerator and its method of work Download PDFInfo
- Publication number
- CN103851850B CN103851850B CN201210518095.7A CN201210518095A CN103851850B CN 103851850 B CN103851850 B CN 103851850B CN 201210518095 A CN201210518095 A CN 201210518095A CN 103851850 B CN103851850 B CN 103851850B
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- China
- Prior art keywords
- branch road
- vavuum pump
- storage space
- valve
- evacuated
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/043—Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment
Abstract
The present invention is on a kind of refrigerator and its method of work.This method comprises determining whether that pair the storage space of low-pressure state can be kept（2）Pumping；And if it is determined that to be evacuated to storage space, then start vavuum pump（3）, by least part air from storage space（2）Via being connected to vavuum pump（3）And storage space（2）Between pumping path（4）Detach.According to the suggestion of the present invention, work as vavuum pump（3）During in startup stage, opened and pumping path within least part startup stage（4）The branch road of connection（5）Or keep branch road（5）The state of opening is to reduce vavuum pump（3）Starting load.
Description
[technical field]
The present invention on a kind of refrigerator and its method of work, especially with regard to it is a kind of have can keep the storage of low-pressure state
The refrigerator and its method of work in space.
[background technology]
The refrigerator that can preserve article in a low pressure environment is known in the prior art.This refrigerator generally has can
The storeroom of evacuation（Also it is commonly called as in the industry " vacuum chamber "）, by the way that the gas in storeroom is at least partly detached, in storeroom
Air content is reduced to weaken the oxidizing process of food, so as to extend holding time and the quality of food.
If the pressure in vacuum chamber is less than external pressure, vavuum pump is again started up if desired, then vavuum pump can go out
Situation about now loading.And moment of torsion during because of electric motor starting torque ratio normal work is much smaller, it is possible that can be non-loaded
The motor that state starts, the phenomenon of difficulty in starting under bringing onto load environment.The symptom being found is that motor speed is too low or motor
It can not rotate.
If wanting motor all can normally to start under any load ring border, the power of motor certainly will be increased, it is so electric
The just relative increase of the volume of machine.For it much there is the extract system of size limitation, it is clear that be unacceptable.Even if can
OK, more electric energy will not only be consumed by so starting by force, can also send more heats, may influence periphery component
Normal work.
The B of Chinese invention patent CN 101331970 disclose a kind of vacuum fresh-keeping system and its control method, and it includes low pressure
Room/vacuum chamber, vavuum pump and the pumping path being connected between vavuum pump and low-pressure chamber, in vacuum pump work, positioned at low pressure
Indoor gas can be extracted by pumping path.Refrigerator has an one end and pumping path connection, the other end exposed to outer
Portion's air（External pressure）Branch road.In vacuum, this branch road is remained turned-off, when vavuum pump is closed, branch road
Be opened with to pumping path input extraneous air so that set up at mechanical valve/pressure retaining valve two ends of low-pressure chamber pressure differential and with
This pressure differential closes the mechanical valve being arranged on low-pressure chamber.But CN 101331970B are for skill to be solved by this invention
Art problem is silence.
[content of the invention]
It is an object of the present invention to solve at least one above-mentioned technical problem, so as to provide a kind of reliable and be conducive to
Reduce the refrigerator work method of the size of vavuum pump and be configured to that the refrigerator of this method can be implemented.
Therefore, an aspect of of the present present invention is on a kind of method of work of refrigerator, including：Determine whether to pair to keep low pressure
The storage space pumping of state, if it is determined that to be evacuated to storage space, then start vavuum pump, by least part air from institute
Storage space is stated to detach via the pumping path being connected between the vavuum pump and the storage space；Characterized in that, working as
When the vavuum pump is in startup stage, the branch road being connected with the pumping path is opened within least partly described startup stage
Or the state for keeping the branch road to open.
Due to the startup stage in vavuum pump, extraneous air can inject the pumping path being connected with the inlet end of vavuum pump
It is interior, therefore pressure difference at this stage vacuum pump two ends can be significantly reduced, i.e., the starting load of vavuum pump can be significantly reduced.
Even if so as to using the less vavuum pump of power output, vavuum pump can also storage space be to start in the case of low pressure.Therefore,
It is expected on refrigerator using smaller power and compact vavuum pump.
It should leave, opening branch road of the present invention includes switching to branch road from closed mode to be opened or partly beat completely
The situation of open state, correspondingly, the open mode of branch road include branched portion and full opening of situation.
Other are independent or combined with other features and be considered as the feature of characteristic of the invention by following additional right
It is required that in illustrate.
According to a preferred embodiment of the invention, when it is determined that to be evacuated to the storage space, the branch road is beaten
Open or remain on first scheduled time, when disappearing first scheduled time, the branch road is closed.It is preferred that
Ground.First scheduled time is not more than 5 seconds.
According to a preferred embodiment of the invention, judge whether the vavuum pump completes the startup stage, if really
The fixed vavuum pump has been completed the startup stage, closes the branch road.
According to a preferred embodiment of the invention, the rotary speed information of the motor on the vavuum pump based on acquisition,
Control unit determines whether the vavuum pump completes the startup stage.
According to a preferred embodiment of the invention, when it is determined that to be evacuated to the storage space, the branch road earlier than
The vavuum pump switches to the state of opening with being energized from closed mode.
According to a preferred embodiment of the invention, when it is determined that to be evacuated to the storage space, the vavuum pump and use
To be selectively gated off or open the valve of the branch road while being powered to open the branch road, or the valve is more early than the vavuum pump
The scheduled time is powered.
According to a preferred embodiment of the invention, when it is determined that to be evacuated to the storage space, opened or closed to beat
The valve scheduled delay more late than the vavuum pump for closing the branch road is energized, wherein when the valve is energized, the branch road
It is closed.
According to a preferred embodiment of the invention, determine whether to close the vavuum pump, closing the vavuum pump
Afterwards, the branch road is opened to introduce extraneous air to the pumping path again.
According to a preferred embodiment of the invention, after the vavuum pump is closed, the branch road is opened again second
Closed after the scheduled time
According to a preferred embodiment of the invention, when the pressure in the measured pumping path reaches preset value
When, the branch road being opened again is closed.
Another aspect of the present invention is on a kind of refrigerator, including can keep the storage space, vavuum pump, connection of low-pressure state
Pumping path between the storage space and the vavuum pump and it is connected, can optionally turn off with the pumping path
Or the branch road and control unit opened, it is characterised in that described control unit is configured to can perform above-mentioned any one side
Method.
The construction and its other goals of the invention and beneficial effect of the present invention will by with reference to accompanying drawing to preferred real
Apply the description of example and more obvious understandable.
[brief description of the drawings]
As part of the specification and to provide a further understanding of the present invention, the following drawings diagram present invention's
Embodiment, and together with specification be used for illustrate the present invention principle.Wherein,
Fig. 1 is the schematic diagram of the refrigerator in accordance with a preferred embodiment of the present invention with extract system.
Fig. 2 is the indicative flowchart of the evacuation of refrigerator in accordance with a preferred embodiment of the present invention.
Fig. 3 is the indicative flowchart of the evacuation according to another preferred embodiment of the present invention refrigerator.
[embodiment]
Fig. 1 is refer to, refrigerator 1 has heat-insulated interior space 10.Interior space 2 can be by the casing with heat-barrier material（Not
Sign）Limit, by the door for being connected to casing（Do not indicate）Close or open.
Refrigerator 1, which has, can keep the storage space 2 of low-pressure state.Storage space 2 can be by interior space 10
Storage unit 11 is formed, and can also directly be limited by interior space 10.
Refrigerator 1 has the extract system 12 air in storage space 2 at least partly to be detached.Extract system 12 is wrapped
The pumping path 4 for including vavuum pump 3 and being connected between storage space 2 and vavuum pump 3.Pumping path 4 can be by least one pipe
And at least one pipe joint is limited.
Extract system 12 is included in pumping path 4, the mechanical valve to prevent extraneous gas from entering in storage space 2
8.Mechanical valve 8 can be arranged in storage unit 11.In a preferred embodiment, mechanical valve 8 can be variable with one
The valve block of shape, in the presence of external and internal pressure difference, valve block is deformed and a closed pumping being arranged in storage unit 11
Passage.Mechanical valve 8 can use the patent application CN200910028963.1 submitted before currently existing scheme, such as the applicant
Disclosed scheme, therefore, does not make more descriptions here.
Extract system 12 is included to judge whether storage space 2 has reached the detection unit 9 of setting pressure.Detection is single
Member 9 can include the pressure sensor one to detect air pressure.
In this embodiment, detection unit 9 is connected with pumping path 4, is judged by detecting the pressure of pumping path 4
Pressure in storage space 2.In another embodiment, detection unit 9 can also directly detect the pressure of storage space 2.
The branch road 5 that extract system 12 also includes and pumping path 4 is connected.One end connecting fluid connection pumping road of branch road 5
Footpath 4, the other end is then connected with extraneous air, i.e., connected with atmospheric pressure.
Branch road 5 is provided with the valve 7 opened or closed to controlling brancher 5.Preferably, valve 7 is magnetic valve, and and controller
6 work are connected, and can be powered on or off according to the signal of controller 6 and be selectively opened branch road or close branch road.One
In individual preferred embodiment, valve 7 is normally close valve.Be powered when, the coil of valve 7 is energized, effect of the valve element based on electromagnetic force and
It can instantaneously shift and open branch road 5.After a loss of power, electromagnetic force disappears, and valve element can be in resetting-mechanism for example（Spring）Reset force
In the presence of displacement and recover to closed position.In an alternative embodiment, valve 7 can also be normally open type magnetic valve.
Controller 6 includes printed circuit board (PCB), and is connected with vavuum pump 3, detection unit 9 and valve 7.Vavuum pump 3 and valve 7 can
To be optionally powered or power off according to the signal that controller 6 is produced.
Fig. 2 is the indicative flowchart of the pumping program of refrigerator 1 in accordance with a preferred embodiment of the present invention.Incorporated by reference to Fig. 1
Reference picture 2, first, in step sl, judge whether to need to be evacuated storage space 2 with reduce storage space 2 pressure, this can
With as the pressure information or one in the storage space 2 measured by input instruction of the control unit 6 based on user, detection unit 9
Individual time signal and determine.For example, when user's pressing/touch is located at the switch on refrigerator 1, or when detection unit 9 is surveyed
When the pressure in storage space 2 obtained is less than some preset value, or the time signal from a timing unit, control unit
6 when receiving/producing this user input instruction, pressure information or time signal, sends the instruction being evacuated to storage space 2.
When control unit 6 does not receive the feedback of the instruction from user, detection unit 9 or timing unit, then holding state is kept.
If control unit 6 determines to need to be evacuated storage space 2, in step s 2, then start vavuum pump 3（For example to
Vavuum pump 3 is powered）And open branch road 5.The startup stage being initially powered in vavuum pump 3, rotating speed is small therefore output torque is smaller, opens
Branch road 5 can reduce the pressure difference at the two ends of vavuum pump 3, so as to reduce the starting load of vavuum pump 3.
In this embodiment, branch road 5 is closed before step S2, therefore opens branch road 5 i.e. needs by branch
Road 5 switches to open mode from closed mode.When valve 7 be normally closed solenoid valve when, to valve 7 be powered can by branch road 5 from close shape
State switches to open mode.
Because branch road 5 is closed before step S2, in a preferred embodiment, branch road 5 is earlier than vacuum
Pump 3 is opened, such as the early scheduled time（Such as 0.5~1 second）It is powered to valve 7 so that branch road 5 is at least before the energization of vavuum pump 3
Partially open, so that when vavuum pump 3 starts, the pressure difference at the two ends of vavuum pump 3 can be lowered even without zero pressure difference.
In an alternative embodiment, branch road 5 and vavuum pump 3 can also be opened simultaneously, such as simultaneously to valve 7 and vacuum
Pump 3 is powered.
Next in step s3, determine whether to close branch road 5.This can be determined according to a time signal.It is right
Switched in branch road 5 in step s 2 from closed mode for the embodiment of open mode, when the opening time of branch road 5（
It is the conduction time of valve 7 in one preferred embodiment）When reaching the first scheduled time T1, branch road 5 is closed in step s 4（
It is that valve 7 is de-energized in one preferred embodiment）.First scheduled time T1 is for example between 1 second~5 seconds, and preferably 1 second~2
Between second.
In an alternative embodiment, in step s3, can also be according to vavuum pump 3 when vavuum pump 3 includes motor
Motor rotary speed information come determine vavuum pump 3 whether to complete startup stage and decide whether close branch road 5.For example take seriously
When the startup stage that the rotating speed of empty pump 3 is gradually increasing from the beginning is transitioned into stable normal work stage, control unit 6 is determined
Vavuum pump 3 has completed startup stage and has closed branch road 5.
When it is determined that needing to close branch road 5, branch road is closed in step s 4.When branch road 5 is closed, vavuum pump 3 continues
Work reduces the oxygen content in storage space 2 to continue to detach the gas in storage space 2.
Next, determining whether to close vavuum pump 3 in step S5.This can be by judging the pressure in storage space 2
Preset value whether is reached to determine, for example, has been determined based on the pressure information in the pumping path 4 that detection unit 9 is measured.
When the pressure in storage space 2 has reached preset value, vavuum pump 3 is closed.
In an alternative embodiment, can also determine whether to close by calculating the conduction time of vavuum pump 3
Vavuum pump 3.For example, after the energization preset time period of vavuum pump 3, closing vavuum pump 3.
When confirming to close vavuum pump 3 in step s 5, vavuum pump is closed in step s 6.In the implementation shown in Fig. 2
In example, in step s 6, after vavuum pump 3 is powered off, branch road 5 is opened again to input extraneous air to pumping path 4 with fast
Air pressure in speed increase pumping path 4, this can establish pressure difference in the both sides of mechanical valve 8, so that mechanical valve 8 can be by reliable and fast
Close fastly and strengthen the air-tightness of storage space 2.
When valve 7 is normally closed solenoid valve, when valve 7 is energized, the electromagnetic force that coil is produced can instantaneously open branch completely
Road 5, the pressure that extraneous air is rapidly entered in pumping path 4, pumping path 4 can instantaneously be increased to atmospheric pressure.Because soon
Larger pressure differential is set up between storage space 2 in pumping path 4, mechanical valve 8 can be instantaneously closed.Return-air phenomenon
（After the power cut-off of vavuum pump 3, the bleed-off passage that extraneous air is never closed in time by mechanical valve 8 enters storage space 2
It is interior）Can effectively it be prevented, so as to the low-pressure state in extension storage space 2 as far as possible.
In the present embodiment, after step S6, judge whether to be again switched off branch road 5（Step S7）.It is preferred at one
, can be by calculating the time that branch road 5 is specifically opened in embodiment（The conduction time of valve 7 can be equal to）To determine.When
When branch road 5 has already turned on the second scheduled time T2, it is determined that closing branch road 5.
In another preferred embodiment, in the step s 7, can also be by whether judging the pressure in pumping path 4
Preset value has been reached to determine whether that branch road 5 should be closed.For example when the pressure in the pumping path 4 that detection unit 9 is measured
It is increased to an atmospheric pressure or during close to an atmospheric pressure, you can it is determined that closing branch road 5.
When determining to need to close branch road 5 in the step s 7, branch road 5 is closed in step s 8.
So far, an evacuation EP (end of program), comes back to holding state.
Fig. 3 is the indicative flowchart of the pumping program according to another preferred embodiment of the present invention refrigerator 1.Fig. 3 and Fig. 2
Main difference is state of the branch road 5 after an evacuation terminates and the different operating thus brought.Preferably, exist
In this embodiment, valve 7 is normally open type magnetic valve, and when valve 7 is energized, branch road 5 is closed.Following emphasis describes Fig. 3 and Fig. 2
Distinctive points.
As shown in figure 3, when determination will be evacuated to storage space 2 in the step s 21, vavuum pump 3 is opened in step S22
It is dynamic, because branch road 5 is in open mode in the standby state, therefore only the open shape of branch road 5 need to be kept in step S22
State, that is, vary without the state of valve 7.
In step S23, determine whether to close branch road 5.As set forth above, it is possible to passage time signal or vavuum pump 5
Rotary speed information come determine whether close branch road 5.For example, time signal can take out true by comparing from what control unit 6 was sent
Whether the time that the time or vavuum pump 3 that do-nothing instruction has disappeared have been powered has reached the first scheduled time T1 and has produced.Base
In the signal produced when the first scheduled time T1 disappears, control unit 6 confirms that branch road 5 should be closed.
When control unit 6 determines that branch road 5 is closed in step s 24 when closing branch road 5.For in this embodiment
For, valve 7 is energized.Vavuum pump 5 remains in operation after completing startup stage.
In the fig. 3 embodiment, when it is determined that to be evacuated to storage space 2, valve 7 is more late than vavuum pump 3 to be powered.
When determining to close vavuum pump 3 in step s 25, such as predetermined pressure, vavuum pump are reached in storage space 2
3 close in step S26, and are again turned on branch road 5（I.e. valve 7 is powered off）Quickly to be closed to the introducing extraneous air of pumping path 4
Close mechanical valve 8.Branch road 5 is remained on, until foundation needs to close in next evacuation.
So far, an evacuation EP (end of program), returns to holding state.
In the embodiment above, when it is determined that to be evacuated to storage space 2, the acquiescence branch road 5 of control unit 6 is in certain shape
State（It is closed mode in fig. 2, then open mode in figure 3）, and directly open branch road 5 or keep the open shape of branch road 5
State.But In an alternative embodiment, control unit 6 can also first determine whether the state of branch road 5, then decide whether again
It is powered, remains powered on, powers off or remains powered off to valve 7.The state of branch road 5 can be confirmed by confirming the state of valve 7.
Claims (24)
1. a kind of method of work of refrigerator, including：
Pair storage space that can keep low-pressure state (2) is determined whether to be evacuated；And
If it is determined that to be evacuated to the storage space (2), then start vavuum pump (3) with by least part air from the storage
Space (2) is detached via the pumping path (4) being connected between the vavuum pump (3) and the storage space (2)；
Characterized in that,
When the vavuum pump (3) is in startup stage, opened and the pumping path within least partly described startup stage
(4) branch road (5) of connection or keep the state that the branch road (5) is opened to reduce the starting load of the vavuum pump (3).
2. the method as described in claim 1, it is characterised in that when it is determined that to be evacuated to the storage space (2), the branch
Road (5) is opened or remained on first scheduled time (T1), when first scheduled time (T1) disappears, institute
Branch road (5) is stated to be closed.
3. method as claimed in claim 2, it is characterised in that first scheduled time (T1) is not more than 5 seconds.
4. the method as described in claim 1, it is characterised in that judge whether the vavuum pump (3) completes the startup stage,
If it is determined that the vavuum pump (3) has completed the startup stage, the branch road (5) is closed.
5. method as claimed in claim 4, it is characterised in that turn of the motor on the vavuum pump (3) based on acquisition
Fast information, control unit (6) determines whether the vavuum pump (3) completes the startup stage.
6. the method as described in claim 1, it is characterised in that when it is determined that to be evacuated to the storage space (2), the branch
Road (5) switches to the state of opening earlier than the vavuum pump (3) with being energized from closed mode.
7. method as claimed in claim 2, it is characterised in that when it is determined that to be evacuated to the storage space (2), the branch
Road (5) switches to the state of opening earlier than the vavuum pump (3) with being energized from closed mode.
8. method as claimed in claim 3, it is characterised in that when it is determined that to be evacuated to the storage space (2), the branch
Road (5) switches to the state of opening earlier than the vavuum pump (3) with being energized from closed mode.
9. method as claimed in claim 4, it is characterised in that when it is determined that to be evacuated to the storage space (2), the branch
Road (5) switches to the state of opening earlier than the vavuum pump (3) with being energized from closed mode.
10. method as claimed in claim 5, it is characterised in that described when it is determined that to be evacuated to the storage space (2)
Branch road (5) switches to the state of opening earlier than the vavuum pump (3) with being energized from closed mode.
11. the method as described in claim 1, it is characterised in that described true when it is determined that to be evacuated to the storage space (2)
Empty pump (3) and to be selectively gated off or open the valve (7) of the branch road while being powered to open the branch road (5), or institute
State valve (7) scheduled time energization more early than the vavuum pump (3).
12. method as claimed in claim 2, it is characterised in that described true when it is determined that to be evacuated to the storage space (2)
Empty pump (3) and to be selectively gated off or open the valve (7) of the branch road while being powered to open the branch road (5), or institute
State valve (7) scheduled time energization more early than the vavuum pump (3).
13. method as claimed in claim 3, it is characterised in that described true when it is determined that to be evacuated to the storage space (2)
Empty pump (3) and to be selectively gated off or open the valve (7) of the branch road while being powered to open the branch road (5), or institute
State valve (7) scheduled time energization more early than the vavuum pump (3).
14. method as claimed in claim 4, it is characterised in that described true when it is determined that to be evacuated to the storage space (2)
Empty pump (3) and to be selectively gated off or open the valve (7) of the branch road while being powered to open the branch road (5), or institute
State valve (7) scheduled time energization more early than the vavuum pump (3).
15. method as claimed in claim 5, it is characterised in that described true when it is determined that to be evacuated to the storage space (2)
Empty pump (3) and to be selectively gated off or open the valve (7) of the branch road while being powered to open the branch road (5), or institute
State valve (7) scheduled time energization more early than the vavuum pump (3).
16. the method as described in claim 1, it is characterised in that when it is determined that to be evacuated to the storage space (2), be used to
The valve (7) for opening or closing the branch road (5) is energized than the vavuum pump (3) late scheduled delay, wherein when the valve
(7) when being energized, the branch road (5) is closed.
17. method as claimed in claim 2, it is characterised in that when it is determined that to be evacuated to the storage space (2), be used to
The valve (7) for opening or closing the branch road (5) is energized than the vavuum pump (3) late scheduled delay, wherein when the valve
(7) when being energized, the branch road (5) is closed.
18. method as claimed in claim 3, it is characterised in that when it is determined that to be evacuated to the storage space (2), be used to
The valve (7) for opening or closing the branch road (5) is energized than the vavuum pump (3) late scheduled delay, wherein when the valve
(7) when being energized, the branch road (5) is closed.
19. method as claimed in claim 4, it is characterised in that when it is determined that to be evacuated to the storage space (2), be used to
The valve (7) for opening or closing the branch road (5) is energized than the vavuum pump (3) late scheduled delay, wherein when the valve
(7) when being energized, the branch road (5) is closed.
20. method as claimed in claim 5, it is characterised in that when it is determined that to be evacuated to the storage space (2), be used to
The valve (7) for opening or closing the branch road (5) is energized than the vavuum pump (3) late scheduled delay, wherein when the valve
(7) when being energized, the branch road (5) is closed.
21. as any of the above method claims, it is characterised in that determine whether to close the vavuum pump
(3), after the vavuum pump (3) is closed, the branch road (5) is opened to introduce outside empty to the pumping path (4) again
Gas.
22. method as claimed in claim 21, it is characterised in that after the vavuum pump (3) is closed, branch road (5) quilt
Be again turned on second scheduled time (T2) closes afterwards.
23. method as claimed in claim 21, it is characterised in that when the pressure in the measured pumping path (4) reaches
During to preset value, the branch road (5) being opened again is closed.
24. a kind of refrigerator, including the storage space (2) of low-pressure state, vavuum pump (3) can be kept, the storage space is connected to
(2) pumping path (4) between the vavuum pump (3) and be connected with the pumping path (4), can optionally turn off or
The branch road (5) and control unit (6) of opening, it is characterised in that described control unit (6) is configured to executable aforesaid right
It is required that the method for work in 1-23 described in any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518095.7A CN103851850B (en) | 2012-12-06 | 2012-12-06 | Refrigerator and its method of work |
| EP13195727.6A EP2741031A1 (en) | 2012-12-06 | 2013-12-04 | Refrigerator and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210518095.7A CN103851850B (en) | 2012-12-06 | 2012-12-06 | Refrigerator and its method of work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103851850A CN103851850A (en) | 2014-06-11 |
| CN103851850B true CN103851850B (en) | 2017-08-11 |
Family
ID=49725029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210518095.7A Active CN103851850B (en) | 2012-12-06 | 2012-12-06 | Refrigerator and its method of work |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2741031A1 (en) |
| CN (1) | CN103851850B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107796167B (en) * | 2016-09-05 | 2021-07-06 | 博西华电器（江苏）有限公司 | Refrigerator and control device and control method thereof |
| CN114370736B (en) * | 2020-10-15 | 2023-08-15 | 海信冰箱有限公司 | Refrigerator vacuumizing control method and refrigerator |
| CN114383360A (en) * | 2020-10-21 | 2022-04-22 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
| CN113865192A (en) * | 2021-10-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Fresh-keeping refrigerator and control method thereof |
| CN113865191A (en) * | 2021-10-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Fresh-keeping refrigerator and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6090422A (en) * | 1999-08-11 | 2000-07-18 | Taragan; Arie | Refrigerator with automatic vacuum compartment and method of preserving fresh food items using the same |
| CN1910417A (en) * | 2003-12-10 | 2007-02-07 | 伊莱克斯家用产品股份有限公司 | Refrigerating or freezing device with evacuated chamber |
| WO2010119103A1 (en) * | 2009-04-17 | 2010-10-21 | Tarcisio Senzacqua | System for vacuum preservation of food in domestic environment |
| CN202254604U (en) * | 2011-09-02 | 2012-05-30 | 苏州市侨鑫电子科技有限公司 | Novel air extracting device for vacuum airtight box of refrigerator |
| CN202274704U (en) * | 2011-09-13 | 2012-06-13 | 海尔集团公司 | Vacuum refreshing device and refrigeration equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331970B (en) | 2007-06-28 | 2011-04-27 | 博西华家用电器有限公司 | Vacuum preserving system and control method thereof |
-
2012
- 2012-12-06 CN CN201210518095.7A patent/CN103851850B/en active Active
-
2013
- 2013-12-04 EP EP13195727.6A patent/EP2741031A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6090422A (en) * | 1999-08-11 | 2000-07-18 | Taragan; Arie | Refrigerator with automatic vacuum compartment and method of preserving fresh food items using the same |
| CN1910417A (en) * | 2003-12-10 | 2007-02-07 | 伊莱克斯家用产品股份有限公司 | Refrigerating or freezing device with evacuated chamber |
| WO2010119103A1 (en) * | 2009-04-17 | 2010-10-21 | Tarcisio Senzacqua | System for vacuum preservation of food in domestic environment |
| CN202254604U (en) * | 2011-09-02 | 2012-05-30 | 苏州市侨鑫电子科技有限公司 | Novel air extracting device for vacuum airtight box of refrigerator |
| CN202274704U (en) * | 2011-09-13 | 2012-06-13 | 海尔集团公司 | Vacuum refreshing device and refrigeration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2741031A1 (en) | 2014-06-11 |
| CN103851850A (en) | 2014-06-11 |
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