CN107782060A - A kind of method that refrigerator door open-close is detected with temperature signal - Google Patents
A kind of method that refrigerator door open-close is detected with temperature signal Download PDFInfo
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- CN107782060A CN107782060A CN201610770027.8A CN201610770027A CN107782060A CN 107782060 A CN107782060 A CN 107782060A CN 201610770027 A CN201610770027 A CN 201610770027A CN 107782060 A CN107782060 A CN 107782060A
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- Prior art keywords
- refrigerator
- temperature
- compartment
- change
- rate
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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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
Abstract
The invention discloses a kind of method that refrigerator door open-close is detected with temperature signal, it comprises the following steps：S1, refrigerator normal operation, temperature sensor monitor internal temperature of refrigerator change in real time；If S2, internal temperature of refrigerator rate of change are judged as that refrigerator doors are not opened in the range of the first threshold of setting, refrigerator is run by normal refrigerant sequence；If the mutation of internal temperature of refrigerator rate of change exceedes the first threshold scope, into step S3；S3, the rate of temperature change more than the first threshold scope interrupt as the first input signal input control system and triggering one, control system judges that refrigerator doors are opened and control refrigerator to be run by responder after enabling, additionally increase detection device can realize that refrigerator doors are turned on and off detecting to the technical scheme by the existing component of refrigerator, play a part of cost-effective and simplify production process.
Description
Technical field
The present invention relates to one kind in household appliance technical field, more particularly to refrigerator field refrigerator door open-close is detected with temperature signal
Method.
Background technology
Refrigerator is increasingly popularized as a kind of conventional household electrical appliance, its intelligent Application, at present the unlatching of the door of refrigerator
Detected with closing generally by mechanical switch or electromagnetic switch.Both switch installations be required for door body with
The fluting installation of casing junction, such mode inevitably need certain working procedure to carry out the installation of detection switch, carried accordingly
High refrigerator production cost.In addition, mechanical refrigerator door switch often also needs to meet electric anti-riot certification, electromagnetic type door switch is deposited
In the bad risk of interference free performance, its processing procedure to refrigerator and final user's using effect tool have a certain impact.
In view of this, it is necessary to provide effective solution to solve the above problems.
The content of the invention
It is contemplated that at least solve one of technical problem existing for prior art, for achieving the above object, this hair
Bright to provide a kind of fan assembly, its specific design mode is as follows.
A kind of method that refrigerator door open-close is detected with temperature signal, it comprises the following steps：
S1, refrigerator normal operation, temperature sensor monitor internal temperature of refrigerator change in real time；If S2, internal temperature of refrigerator
Rate of change is then judged as that refrigerator doors are not opened in the range of the first threshold of setting, and refrigerator is run by normal refrigerant sequence；If ice
The mutation of case internal temperature change rate exceedes the first threshold scope, then into step S3；S3, more than the first threshold scope
Rate of temperature change as the first input signal input control system and triggering one interruption, control system judge refrigerator doors unlatching
And refrigerator is controlled to be run by responder after enabling.
Further, when refrigerator is run by normal refrigerant sequence in the S2 steps, the compartment illumination of refrigerator is closed；And just
In normal refrigerant sequence running, when the compartment temperature of refrigerator meets or exceeds the first design temperature, the compressor of refrigerator opens
Move and circulating cold air inside compartment is realized by compartment fan；When the compartment temperature of refrigerator is at or below the second design temperature,
The compressor of refrigerator is out of service；Wherein the first design temperature is higher than the second design temperature.
Further, the compartment illumination of the responder control refrigerator in the step S3 after refrigerator open is opened.
Further, the responder in the step S3 after refrigerator open also controls the compartment fan of refrigerator to close.
Further, the control system includes microcontroller.
Further, also include after the step S3：S4, temperature sensor monitor refrigerator inside after refrigerator doors are opened in real time
Temperature change, if internal temperature of refrigerator persistently raise and rate of temperature change beyond setting Second Threshold scope, be judged as
Refrigerator doors are not turned off, and refrigerator continues to run by responder after enabling；If internal temperature of refrigerator rate of change is mutated and is in described
In the range of Second Threshold, then into step S5；S5, the rate of temperature change in the Second Threshold scope are defeated as input signal
Enter one interruption of control system and triggering, control system judges that refrigerator doors are closed and control refrigerator to be run by fast-refrigerating program.
Further, when refrigerator is run by fast-refrigerating program in the S5 steps, the compartment illumination closing of refrigerator, compartment wind
Fan is opened；After the temperature of fast-refrigerating reaches between first design temperature and second design temperature inside compartment,
Refrigerator is continued to run with by normal refrigerant sequence.
The invention has the advantages that：The detection method of refrigerator door open-close provided by the invention, it makes use of refrigerator
Indoor indispensable temperature sensor is detected in real time to internal temperature of refrigerator, when being turned on and off by catching refrigerator doors pair
Dramatic impact caused by temperature in refrigerator compartment, so as to carry out the detection that refrigerator doors are turned on and off, particularly according to detection
To refrigerator compartment in the speed (i.e. rate of temperature change) of temperature change judge whether refrigerator doors have the operation being turned on and off.
In refrigerator system, temperature sensor is a kind of essential component for being used to detect refrigerator compartment temperature of refrigerator inside,
Additionally increase detection device can not realize refrigerator doors to above technical scheme provided by the invention by the existing component of refrigerator
Be turned on and off detect, eliminate detection device, shorten refrigerator assemble flow, that is, play it is cost-effective and simplification produced
The effect of journey.
Brief description of the drawings
Fig. 1 show a kind of refrigeration cycle in refrigerator compartment；
Fig. 2 show the situation of change of refrigerator compartment temperature under even running state；
Fig. 3 show the compartment temperature changing trend diagram in refrigerator doors unlatching and closing process；
Fig. 4 show the temperature changing trend enlarged diagram in a regions in Fig. 3；
Fig. 5 show the temperature changing trend enlarged diagram in b regions in Fig. 3.
Embodiment
Below with reference to each embodiment shown in the drawings, the present invention will be described in detail, referring to figs. 1 to shown in Fig. 5,
It is change schematic diagram of the internal temperature of refrigerator in different times.
With reference to shown in figure 1, Fig. 2, Fig. 1 show a kind of refrigeration cycle in refrigerator compartment, and Fig. 2 show refrigerator and steadily transported
The situation of change of compartment temperature under row state.
As illustrated, being in refrigerator under even running state (i.e. refrigerator doors are constantly in closed mode), refrigerator is by just
Normal refrigerant sequence operation, the temperature of the refrigerator compartment circular wave between the first design temperature T1 and the second design temperature T2.More
For specifically, when the compartment temperature of refrigerator meets or exceeds the first design temperature T1, the compressor start of refrigerator and by compartment
Fan realizes circulating cold air inside compartment, so that being dropped inside compartment at temperature；When refrigerator compartment temperature at or below
During the second design temperature T2, the compressor of refrigerator is out of service, and the temperature inside refrigerator compartment slowly rises naturally.It is relatively easy to
Understand, the first design temperature T1 is higher than the second design temperature T2.In above cyclic process, the temperature change inside compartment
Extremely slowly, i.e., with reference to figure 1, in the natural temperature-rise period (in the t1 times) in compartment inside and made with less rate of temperature change
During cold (in the t1-t2 times) in be respectively provided with less rate of temperature change.In addition, even if using fast-refrigerating mode, often
The rate of temperature change of refrigerator is advised again smaller than 15 DEG C/h.
When refrigerator doors have and open operation, it is empty that the normal temperature air outside refrigerator can replace a part of indoor low temperature
Gas, indoor temperature moment is caused to raise, temperature change can reach more than 20 DEG C sometimes, with specific reference to Fig. 3, Fig. 4.Shown in Fig. 3
For the compartment temperature changing trend diagram in refrigerator doors unlatching and closing process, the temperature change that Fig. 4 show a regions in Fig. 3 becomes
The displaying of gesture enlarged diagram, wherein a regions changes with time trend for refrigerator doors opening time indoor temperature.
As shown in figure 4, t3 is the time that refrigerator doors are opened,
Before refrigerator doors are opened, indoor rate of temperature change is：△ T1/ △ t1=(T4-T3)/(t3-t5)；
After refrigerator doors are opened, the rate of temperature change of indoor temperature is：△ T2/ △ t2=(T5-T4)/(t6-t3),
In the running of refrigerator, △ T1/ △ t1 are much smaller than △ T2/ △ t2.
When refrigerator doors have shutoff operation, due to the isolation of refrigerator doors, the rate of rise in temperature in refrigerator compartment can become
Slow, with specific reference to Fig. 5, Fig. 5 show the temperature changing trend enlarged diagram in b regions in Fig. 3, wherein, the displaying of b regions is
Refrigerator doors shut-in time indoor temperature changes with time trend.
As shown in figure 5, t8 is the time that refrigerator doors are closed,
Before refrigerator doors are closed, indoor rate of temperature change is：△ T3/ △ t3=(T7-T6)/(t8-t7)；Refrigerator doors are closed
After closing, the rate of temperature change of indoor temperature is：△ T4/ △ t4=(T8-T7)/(t4-t8),
In the running of refrigerator, △ T3/ △ t3 are much larger than △ T4/ △ t4.
More than being based on, the method that refrigerator door open-close is detected with temperature signal of offer of the invention, it comprises the following steps：
S1, refrigerator normal operation, temperature sensor monitor internal temperature of refrigerator change in real time；
If S2, internal temperature of refrigerator rate of change are judged as that refrigerator doors are not opened, ice in the range of the first threshold of setting
Case is run by normal refrigerant sequence；If the mutation of internal temperature of refrigerator rate of change exceedes first threshold scope, into step S3；
S3, more than first threshold scope rate of temperature change as the first input signal input control system and triggering one
Interrupt, control system judges that refrigerator doors are opened and control refrigerator to be run by responder after enabling.
Analyzed with reference to more than, it is known that in refrigerator running when refrigerator doors are not opened, the temperature inside refrigerator compartment becomes
Rate △ T1/ △ t1 have less value；In refrigerator open moment, the rate of temperature change △ T2/ △ t2 inside refrigerator compartment are remote
More than △ T1/ △ t1, the first threshold scope in above step of the present invention is based on this and set, and its setting value is between △
Between T1/ △ t1 and △ T2/ △ t2, specific setting range determines according to the actual debugging result of refrigerator.
When refrigerator is run by normal refrigerant sequence in above S2 steps, the compartment illumination of refrigerator is closed.When
When control system judges refrigerator doors for opening, the compartment illumination of responder after refrigerator open control refrigerator open and
Room fan is closed.Wherein, illumination unlatching facilitates user terminal to use, and fan, which is closed, can prevent refrigerator inside cold air from accelerating to be lost in.
Certainly, it is relatively easy to understand, as the core content of the present invention, once control system can pass through compartment temperature rate of change
Signal realize the judgement that is turned on and off to refrigerator doors, control system can also do other action controls, example according to this judgement
Responder after such as compressor shutdown, i.e. refrigerator open in the present invention can also be controlled except illumination is opened and compartment fan
Other actions outside closing motion.Other responses with mechanical switch or electromagnetic switch refrigerator are specifically may be referred to move
Make, do not do deploy herein.
In the present embodiment, control system involved in the present invention includes microcontroller, micro- with 32 of current main flow
The response speed of controller, detection can be completed within the moment of enabling, general hundreds of milliseconds, then makes sound in several milliseconds
Should, including open compartment illumination, close compartment fan etc., the requirement of real-time of switching manipulation on the door can be met completely.Certainly,
A kind of embodiment of 32 8-digit microcontrollers above only as the present invention, it is impossible to as the specific choosing for limiting microcontroller
Select.Microcontroller is generally provided with it should be noted that refrigerator system is more and more intelligent, inside it, is used as judging ice herein
Microcontroller that chamber door is turned on and off simultaneously need not be installed separately.
It is further comprising the steps of after above step S3 after refrigerator doors are opened in the present invention：
S4, temperature sensor monitor the temperature change of refrigerator inside after refrigerator doors are opened in real time, if internal temperature of refrigerator is held
High and rate of temperature change of continuing rising is then judged as that refrigerator doors are not turned off, refrigerator continues by enabling beyond the Second Threshold scope of setting
Responder is run afterwards；If internal temperature of refrigerator rate of change is mutated and is in the range of Second Threshold, into step S5；
S5, the rate of temperature change in the Second Threshold scope are as input signal input control system and triggering one
Interrupt, control system judges that refrigerator doors are closed and control refrigerator to be run by fast-refrigerating program.
Reference analysis, it is known that during refrigerator doors are not turned off after opening, the rate of temperature change △ T3/ inside refrigerator compartment
The braces of △ t3 mono- have relatively large value；And closed the door moment in refrigerator, the rate of temperature change △ T4/ △ t4 inside refrigerator compartment are remote
Less than △ T3/ △ t3, the Second Threshold scope in above step of the present invention is based on this and set, and its setting value is between △
Between T4/ △ t4 and △ T3/ △ t3, specific setting range determines according to the actual debugging result of refrigerator.
In addition, when refrigerator is run by fast-refrigerating program in above S5 steps, the compartment illumination closing of refrigerator, compartment fan
Open；The temperature of fast-refrigerating reaches between the first design temperature T1 and the second design temperature T2 inside compartment
Afterwards, refrigerator is continued to run with by normal refrigerant sequence.
After refrigerator compartment temperature reaches the first design temperature T1 and the second design temperature T2 by fast-refrigerating, ice
The normal refrigerant sequence of case can restart new circulation, can also continue the normal refrigeration before ice this time chamber door unlatching and follow
Ring.With reference to shown in figure 3, normal refrigerant sequence is the continuity of normal refrigerant sequence before refrigerator doors are opened after this time refrigerator doors are closed
Herein you need to add is that：
A, " the normal refrigerant sequence " and " fast-refrigerating program " of refrigerator can differ in the present invention, generally,
The relatively normal refrigerant sequence of fast-refrigerating program can cause refrigerator compartment temperature to decline faster.
B, the rate of temperature change in the present invention with the occasion of representing, that is, take calculate after rate of temperature change absolute value as control
The signal that system processed receives.
C, above example shows in refrigerator normal operation refrigerator doors in refrigerator compartment temperature nature uphill process
The correlation circumstance of unlatching, the correlation circumstance opened as refrigerator doors during the refrigerator compartment temperature decline in refrigerator normal operation
It is similar to its, it is not developed in details herein.
It should be appreciated that although the present specification is described in terms of embodiments, not each embodiment only includes one
Individual independent technical scheme, this narrating mode of specification is only that those skilled in the art will should say for clarity
For bright book as an entirety, the technical scheme in each embodiment may also be suitably combined to form those skilled in the art can
With the other embodiment of understanding.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
Claims (7)
1. a kind of method that refrigerator door open-close is detected with temperature signal, it comprises the following steps：
S1, refrigerator normal operation, temperature sensor monitor internal temperature of refrigerator change in real time；
If S2, internal temperature of refrigerator rate of change are judged as that refrigerator doors are not opened, refrigerator is pressed in the range of the first threshold of setting
Normal refrigerant sequence operation；If the mutation of internal temperature of refrigerator rate of change exceedes the first threshold scope, into step S3；
S3, more than the first threshold scope rate of temperature change as the first input signal input control system and triggering one
Interrupt, control system judges that refrigerator doors are opened and control refrigerator to be run by responder after enabling.
2. the method according to claim 1 that refrigerator door open-close is detected with temperature signal, it is characterised in that the S2 steps
When middle refrigerator is run by normal refrigerant sequence, the compartment illumination of refrigerator is closed；And in normal refrigerant sequence running, work as ice
When the compartment temperature of case meets or exceeds the first design temperature, the compressor start of refrigerator is simultaneously realized inside compartment by compartment fan
Circulating cold air；When the compartment temperature of refrigerator is at or below the second design temperature, the compressor of refrigerator is out of service；Wherein institute
State the first design temperature and be higher than second design temperature.
3. the method according to claim 1 that refrigerator door open-close is detected with temperature signal, it is characterised in that the step S3
The compartment illumination of responder control refrigerator after middle refrigerator open is opened.
4. the method according to claim 1 that refrigerator door open-close is detected with temperature signal, it is characterised in that the step S3
The responder after middle refrigerator open also controls the compartment fan of refrigerator to close.
5. the method according to claim 1 that refrigerator door open-close is detected with temperature signal, it is characterised in that the control system
System includes microcontroller.
6. the method according to claim 1 or 2 that refrigerator door open-close is detected with temperature signal, it is characterised in that the step
Also include after rapid S3：
S4, temperature sensor monitor the temperature change of refrigerator inside after refrigerator doors are opened in real time, if internal temperature of refrigerator persistently rises
High and rate of temperature change is then judged as that refrigerator doors are not turned off, refrigerator continues to ring by after enabling beyond the Second Threshold scope of setting
Program is answered to run；If internal temperature of refrigerator rate of change is mutated and is in the range of the Second Threshold, into step S5；
S5, the rate of temperature change in the Second Threshold scope are as in input signal input control system and triggering one
Disconnected, control system judges that refrigerator doors are closed and control refrigerator to be run by fast-refrigerating program.
7. the method according to claim 6 that refrigerator door open-close is detected with temperature signal, it is characterised in that the S5 steps
When middle refrigerator is run by fast-refrigerating program, the compartment illumination closing of refrigerator, compartment fan are opened；The fast-refrigerating inside compartment
Temperature reach between first design temperature and second design temperature after, refrigerator is continued to transport by normal refrigerant sequence
OK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770027.8A CN107782060A (en) | 2016-08-30 | 2016-08-30 | A kind of method that refrigerator door open-close is detected with temperature signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770027.8A CN107782060A (en) | 2016-08-30 | 2016-08-30 | A kind of method that refrigerator door open-close is detected with temperature signal |
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| CN107782060A true CN107782060A (en) | 2018-03-09 |
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| CN201610770027.8A Pending CN107782060A (en) | 2016-08-30 | 2016-08-30 | A kind of method that refrigerator door open-close is detected with temperature signal |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747531A (en) * | 2019-10-31 | 2021-05-04 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| WO2021196964A1 (en) * | 2020-03-31 | 2021-10-07 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing device, and control method therefor |
| CN113959590A (en) * | 2021-10-20 | 2022-01-21 | 深圳市易流科技股份有限公司 | Method and device for identifying state of carriage door, storage medium and equipment |
| CN114340579A (en) * | 2019-06-24 | 2022-04-12 | 雷普Ip股份公司 | Packaging for pharmaceutical products |
| CN114340578A (en) * | 2019-06-24 | 2022-04-12 | 雷普Ip股份公司 | Packaging for pharmaceutical products |
| CN114484970A (en) * | 2020-10-23 | 2022-05-13 | 青岛海尔电冰箱有限公司 | Refrigerator and control method thereof |
| CN115111873A (en) * | 2021-03-18 | 2022-09-27 | 青岛海尔电冰箱有限公司 | Method for acquiring slope of temperature change curve, control method and refrigerator |
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| CN201837197U (en) * | 2010-08-02 | 2011-05-18 | 海信（北京）电器有限公司 | All-weather energy-saving refrigerator |
| CN103649660A (en) * | 2011-07-15 | 2014-03-19 | 丹佛斯公司 | Method for controlling a refrigerator, a control unit and a refrigerator |
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| EP1482264A1 (en) * | 2003-05-09 | 2004-12-01 | C.R.F. Società Consortile per Azioni | Refrigerator with improved temperature control |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114340579A (en) * | 2019-06-24 | 2022-04-12 | 雷普Ip股份公司 | Packaging for pharmaceutical products |
| CN114340578A (en) * | 2019-06-24 | 2022-04-12 | 雷普Ip股份公司 | Packaging for pharmaceutical products |
| CN112747531A (en) * | 2019-10-31 | 2021-05-04 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| WO2021196964A1 (en) * | 2020-03-31 | 2021-10-07 | 青岛海尔电冰箱有限公司 | Refrigerating and freezing device, and control method therefor |
| CN114484970A (en) * | 2020-10-23 | 2022-05-13 | 青岛海尔电冰箱有限公司 | Refrigerator and control method thereof |
| CN114484970B (en) * | 2020-10-23 | 2023-11-07 | 青岛海尔电冰箱有限公司 | Refrigerator and control method thereof |
| CN115111873A (en) * | 2021-03-18 | 2022-09-27 | 青岛海尔电冰箱有限公司 | Method for acquiring slope of temperature change curve, control method and refrigerator |
| CN115111873B (en) * | 2021-03-18 | 2023-10-10 | 青岛海尔电冰箱有限公司 | Temperature change curve slope obtaining method, control method and refrigerator |
| CN113959590A (en) * | 2021-10-20 | 2022-01-21 | 深圳市易流科技股份有限公司 | Method and device for identifying state of carriage door, storage medium and equipment |
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Application publication date: 20180309 |