CN105091449B - The defrosting control method of refrigerator - Google Patents
The defrosting control method of refrigerator Download PDFInfo
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- CN105091449B CN105091449B CN201510416528.1A CN201510416528A CN105091449B CN 105091449 B CN105091449 B CN 105091449B CN 201510416528 A CN201510416528 A CN 201510416528A CN 105091449 B CN105091449 B CN 105091449B
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Abstract
The invention provides a kind of defrosting control method of refrigerator, including：Refrigerator is counted from the cumulative activation duration and switch gate number after its last time initialization operation, and obtains the environment temperature and ambient humidity of refrigerator；The default defrost entry condition of refrigerator is obtained, defrost entry condition includes：Switch gate number reaches switch gate frequency threshold value, and wherein switch gate frequency threshold value determines according to cumulative activation duration, ambient humidity and environment temperature；Judge whether refrigerator meets defrost entry condition, if refrigerator meets defrost entry condition, generation starts the trigger signal of defrost.The defrosting control method of the present invention determines switch gate frequency threshold value by the ambient humidity according to refrigerator, environment temperature, cumulative activation duration, the starting point of defrosting can be started to accurately determine according to parameters such as the working conditions such as the actual ambient condition such as the ambient humidity of refrigerator, environment temperature and cumulative activation duration, switch gate number, can relatively accurately correspond to actual conditions and defrost in time.
Description
Technical field
The present invention relates to refrigeration technology field, more particularly to a kind of defrosting control method of refrigerator.
Background technology
For traditional device freezed by air cooling way, such as wind cooling refrigerator, typically according to fixed
Time cycle is defrosted, generally will defrosting in order to ensure that the frosting thickness of refrigerator under severe conditions does not influence to freeze
Cycle set must be shorter, and so, for regular service conditions, the number of defrosting is too frequent.Because defrosting adds
The power of heated filament is larger, and can cause the temperature recovery in refrigerator body, so can cause refrigerator in normal conditions of use
Power consumption quantitative change it is big.
On the other hand, there is an urgent need to a kind of method that can be according to specific environmental aspect suitably to be defrosted.
The content of the invention
It is an object of the present invention to overcome in the prior art to have at least one defect, there is provided one kind can effectively drop
The defrosting control method of the refrigerator of low energy consumption.
To achieve these goals, the invention provides a kind of defrosting control method of refrigerator, including：
The refrigerator is counted from the cumulative activation duration and switch gate number after its last time initialization operation, and described in acquisition
The environment temperature and ambient humidity of refrigerator；
The default defrost entry condition of the refrigerator is obtained, the defrost entry condition includes：The switch gate number reaches
To switch gate frequency threshold value, wherein the switch gate frequency threshold value is according to the cumulative activation duration, the ambient humidity and institute
State environment temperature determination；
Judge whether the refrigerator meets defrost entry condition, if the refrigerator meets defrost entry condition, generation is opened
The trigger signal of dynamic defrost.
Alternatively, the defrost entry condition also includes：The refrigerator is from the accumulative enabling after its last time initialization operation
Duration reaches accumulative enabling duration threshold value, wherein the accumulative enabling duration threshold value is according to the cumulative activation duration, the ring
Border humidity and the environment temperature determine；
Also include obtaining the accumulative enabling duration before judging whether the refrigerator meets defrost entry condition.
Alternatively, the defrost entry condition also includes：The compartment temperature of the refrigerator and the difference of compartment design temperature
Beyond default difference range；
Also include obtaining before judging whether the refrigerator meets defrost entry condition the compartment temperature and it is described between
Room design temperature.
Alternatively, the compartment temperature includes temperature of refrigerating chamber and freezer temperature；
The compartment design temperature includes refrigerating chamber design temperature and refrigerating chamber design temperature；
The difference range includes refrigeration difference range and freezing difference range；
The difference of the compartment temperature of the refrigerator and compartment design temperature includes beyond default difference range：The refrigeration
The difference of room temperature and the refrigerating chamber design temperature exceeds default refrigeration difference range, and the freezer temperature with it is described
The difference of refrigerating chamber design temperature exceeds default freezing difference range.
Alternatively, the defrost entry condition also includes：The cumulative activation duration reaches default most short preset duration.
Alternatively, the defrosting control method also includes after the cumulative activation duration of the refrigerator is counted：
Judge whether the cumulative activation duration reaches default most long preset duration,
If the cumulative activation duration reaches the most long preset duration, the trigger signal is directly generated；Otherwise, hold
The obtaining step of the row defrost entry condition.
Alternatively, wherein the step of obtaining the defrost entry condition includes：
Corresponding defrost entry condition mapping table is determined according to the cumulative activation duration；The defrost entry condition
The ambient humidity and environment temperature and switch gate frequency threshold value and accumulative enabling duration threshold value of the refrigerator are provided with mapping table
Between corresponding relation；
Switch gate corresponding with the ambient humidity and environment temperature is inquired about in the defrost entry condition mapping table
Number threshold value and accumulative enabling duration threshold value.
Alternatively, corresponding default defrost entry condition mapping table bag is determined according to the cumulative activation duration
Include：
According to the multiple working time sections in advance dividing the cumulative activation duration of the refrigerator, the accumulative work is determined
Make the working time section belonging to duration；
According to pre-setting, corresponding multiple defrost entry conditions are reflected respectively with the multiple working time section
Firing table, it is determined that defrost entry condition mapping table corresponding with the working time section belonging to the cumulative activation duration.
Alternatively, in the defrost entry condition mapping table,
The ambient humidity range of the refrigerator is divided into multiple ambient humidity sections；
The ambient temperature range of the refrigerator is divided into multiple environment temperature sections；
Establish the switch gate frequency threshold value and the accumulative enabling duration threshold value and the ambient humidity section and described
Corresponding relation between environment temperature section.
Alternatively, the defrosting control method also includes after generation starts the trigger signal of defrost：
Defrost is carried out to the refrigerator.
Alternatively, the defrosting control method also includes：
After the refrigerator completes defrost and when the compressor of the refrigerator starts first or during the refrigerator electrifying startup
The initialization operation is performed, the initialization operation includes：
The switch gate number, the accumulative enabling duration and the cumulative activation duration are zeroed out.
The defrosting control method of the present invention is determined by the ambient humidity according to refrigerator, environment temperature, cumulative activation duration
Switch gate frequency threshold value, can according to the actual ambient condition such as the ambient humidity of refrigerator, environment temperature and cumulative activation duration, open
The parameters such as the working conditions such as shutdown number start the starting point of defrosting to accurately determine.Fixed with the cycle of the prior art
Defrosting control method controls the method for the length of defrosting time to compare with simply by enabling cumulative frequency, can not only be than calibrated
Really corresponding actual conditions defrost in time, and can be effectively reduced the power consumption of refrigerator.
Further, the present invention is also determined accumulative by the ambient humidity according to refrigerator, environment temperature, cumulative activation duration
Enabling duration threshold value, with reference to refrigerator switch gate number further accurately determine start defrosting starting point.So that not only more
Can immediately it be defrosted, and can is effectively reduced the power consumption of refrigerator to a certain extent.
The present invention can be according to the defrost entry condition mapping table corresponding with refrigerator difference cumulative activation duration come exactly
It is determined that current defrost entry condition mapping table, contained and ambient humidity and environment temperature pair in defrost entry condition mapping table
The switch gate frequency threshold value and accumulative enabling duration threshold value answered, pass through the current switch gate number of refrigerator and switch gate frequency threshold value
Be compared, accumulative enabling duration that refrigerator is current compared with accumulative enabling duration threshold value, so as to relatively accurately true
The fixed starting point for starting defrosting.
Further, the present invention is also by comparing the compartment temperature of refrigerator and the difference of compartment design temperature, with reference to refrigerator
Accumulative enabling duration and switch gate number further accurately determine the starting point for starting defrosting, so as to not only more can be immediately
Defrosted, and can is effectively reduced the power consumption of refrigerator to a certain extent.
According to the accompanying drawings will be brighter to the detailed description of the specific embodiment of the invention, those skilled in the art
Above-mentioned and other purposes, the advantages and features of the present invention.
Brief description of the drawings
Some specific embodiments of the present invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the indicative flowchart of the defrosting control method of refrigerator according to an embodiment of the invention；
Fig. 2 is the indicative flowchart of acquisition defrost entry condition according to an embodiment of the invention；
Fig. 3 is shown according to an embodiment of the invention determines corresponding defaultization according to cumulative activation duration
The indicative flowchart of white entry condition mapping table；
Fig. 4 is the indicative flowchart of the defrosting control method of refrigerator according to the preferred embodiment of the invention.
Embodiment
Fig. 1 is the indicative flowchart of the defrosting control method of refrigerator according to an embodiment of the invention.Referring to Fig. 1,
Defrosting control method according to an embodiment of the invention includes step S101 to step S104.
Step S101, statistics refrigerator obtain from the cumulative activation duration and switch gate number after its last time initialization operation
Take the environment temperature and ambient humidity of refrigerator.
Step S102, obtain the default defrost entry condition of refrigerator.
Step S103, judges whether refrigerator meets defrost entry condition.If refrigerator meets defrost entry condition, step is performed
Rapid S104.If refrigerator is unsatisfactory for defrost entry condition, step S101 can return to.
Step S104, generation start the trigger signal of defrost.
In step S101, the ambient humidity and environment temperature of refrigerator local environment are gathered using Temperature Humidity Sensor,
So as to obtain the environment temperature of refrigerator and ambient humidity.Temperature Humidity Sensor be alternatively two separate temperature sensors and
Humidity sensor.When refrigerator is the intelligent refrigerator with data-transformation facility, it can also pass through the ring that other equipment obtains refrigerator
Border temperature and ambient humidity.
In step S101, the initialization operation that refers to refers to after refrigerator completes defrost and the compressor of refrigerator opens first
Switch gate number and cumulative activation duration are zeroed out when dynamic or during refrigerator electrifying startup, i.e., after refrigerator completes defrost and ice
Switch gate number and cumulative activation duration are re-started when the compressor of case starts first or during refrigerator electrifying startup accumulative.
Can be counted respectively by two timers refrigerator from the cumulative activation duration after its last time initialization operation, accumulative enabling duration and
Switch gate number.
In step s 102, obtaining the default defrost entry condition of refrigerator includes obtaining defrost entry condition in itself and obtains
It is related to each dependent thresholds compared in defrost entry condition.Defrost entry condition may include：Switch gate number reaches switch gate
Number threshold value, wherein switch gate frequency threshold value determine according to cumulative activation duration, ambient humidity and environment temperature.
In certain embodiments, defrost entry condition may also include refrigerator from the accumulative enabling after its last time initialization operation
Duration reaches accumulative enabling duration threshold value, wherein accumulative enabling duration threshold value is according to cumulative activation duration, ambient humidity and environment
Temperature determines.In such embodiments, also include obtaining accumulative open before judging whether refrigerator meets defrost entry condition
Door duration.Now, defrost entry condition is that accumulative enabling duration reaches accumulative enabling duration threshold value and accumulative enabling duration reaches
Accumulative enabling duration threshold value.
In the initialization carried out after refrigerator completes defrost and when the compressor of refrigerator starts first or during refrigerator electrifying startup
Operation then also includes being zeroed out accumulative enabling duration, i.e., after refrigerator completes defrost and when the compressor of refrigerator starts first
Or switch gate number, accumulative enabling duration and cumulative activation duration are re-started during refrigerator electrifying startup accumulative.It can pass through
Three timers count refrigerator from the cumulative activation duration after its last time initialization operation, accumulative enabling duration and switch gate respectively
Number.
In certain embodiments, the defrost entry condition referred in step S102 also includes：Compartment temperature is set with compartment
The difference of temperature exceeds default difference range.Correspondingly, also include before judging whether refrigerator meets defrost entry condition
Obtain compartment temperature and compartment design temperature.Compartment design temperature can obtain from the temperature controller of refrigerator.The compartment temperature of refrigerator can
Including temperature of refrigerating chamber and freezer temperature；Compartment design temperature includes refrigerating chamber design temperature and refrigerating chamber design temperature.Phase
Ying Di, the difference of compartment temperature and compartment design temperature then specifically include beyond default difference range：Temperature of refrigerating chamber with it is cold
The difference for hiding room design temperature exceeds default refrigeration difference range, and the difference of freezer temperature and refrigerating chamber design temperature surpasses
Go out default freezing difference range.
In an alternative embodiment, the compartment temperature of refrigerator also can only include freezer temperature, and compartment design temperature is only
Refrigerating chamber design temperature.Default difference range described in text can be 2-3 DEG C.
In certain embodiments, the defrost entry condition referred in step S102 also includes：Cumulative activation duration reaches pre-
If most short preset duration.Most short preset duration for example may be selected from any value in 10-16 hours.Preferably, it is most short default
Shi Changwei 12 hours.I.e. before cumulative activation duration reaches 12 hours, even if the switch gate number of refrigerator reaches switch gate
Count threshold value, accumulative enabling duration reaches accumulative enabling duration threshold value, the difference of the compartment temperature and compartment design temperature of refrigerator surpasses
Go out default difference range, wouldn't generate the trigger signal for starting defrost.In a further embodiment, in cumulative activation
Before length reaches 12 hours, in the case that refrigerator meets other defrost entry conditions, it can only continue to count cumulative activation duration,
Until after cumulative activation duration reaches 12 hours, generation starts the trigger signal of defrost.
In certain embodiments, when defrost entry condition may also include cumulative activation duration and reach default most long default
It is long.Step S101 also includes after cumulative activation duration is counted：Judge whether cumulative activation duration reaches default most long pre-
If duration, if cumulative activation duration reaches most long preset duration, trigger signal (the i.e. step for starting defrost is directly generated
S104)；Otherwise, the obtaining step (i.e. step S102) of the defrost entry condition of refrigerator is performed.Most long preset duration is for example optional
Any value from 90-100 hours.Preferably, most short preset duration is 96 hours.
In certain embodiments, after step s 104, in addition to refrigerator defrost is carried out.Those skilled in the art can be with
Understand, the current operation of refrigerator after the trigger signal that generation starts defrost, can be stopped immediately, perform the defrosting operation of refrigerator.
Certainly, also can be after refrigerator completes current operation, then perform the defrosting operation of refrigerator.Further, also can be in generation startupization
After prefixed time interval after the trigger signal of frost, the defrosting operation of refrigerator is performed.
In certain embodiments, defrosting control method of the invention also includes：Refrigerator complete defrost after and refrigerator pressure
Performed when contracting prow time starts or during refrigerator electrifying startup to switch gate number, accumulative enabling duration and cumulative activation duration
The initialization operation being zeroed out.
Those skilled in the art will appreciate that, when reaching switch gate frequency threshold value, accumulative enabling for switch gate number
The long difference for reaching accumulative enabling duration threshold value, compartment temperature and compartment design temperature is beyond default difference range, accumulative work
Reach the defrost entry condition of default most short preset duration as duration, can be stored in advance in the memory of refrigerator, obtain
Can be by directly reading to obtain from the memory of refrigerator during defrost entry condition.Wherein, foregoing difference range, it is most short default when
Length is stored in advance in the memory of refrigerator, directly reads to obtain from memory in the lump when obtaining defrost entry condition.And
Because switch gate frequency threshold value and accumulative enabling duration threshold value are determined according to cumulative activation duration, ambient humidity and environment temperature
, so as to can not directly be acquired from the memory of refrigerator., can be in the memory of refrigerator in some embodiments of the invention
In prestore switch gate frequency threshold value and accumulative enabling duration threshold value and cumulative activation duration, ambient humidity and environment temperature it
Between corresponding relation.Foregoing corresponding relation can be first obtained when obtaining defrost entry condition, further according to cumulative activation duration, environment
Humidity and environment temperature determine switch gate frequency threshold value and accumulative enabling duration threshold value.
Fig. 2 shows that acquisition defrost entry condition according to an embodiment of the invention obtains defrost entry condition in other words
In switch gate frequency threshold value and accumulative enabling duration threshold value indicative flowchart.As shown in Fig. 2 can by step S201 and
Step S202 obtains switch gate frequency threshold value and accumulative enabling duration threshold value in defrost entry condition.
Step S201, corresponding defrost entry condition mapping table is determined according to cumulative activation duration；Defrost trip bar
Be provided with part mapping table refrigerator ambient humidity and environment temperature and switch gate frequency threshold value and accumulative enabling duration threshold value it
Between corresponding relation.
Step S202, switch gate corresponding with ambient humidity and environment temperature is inquired about in defrost entry condition mapping table
Number threshold value and accumulative enabling duration threshold value.
In defrost entry condition mapping table, the ambient humidity range of refrigerator is divided into multiple ambient humidity sections；Will
The ambient temperature range of refrigerator is divided into multiple environment temperature sections；Establish switch gate frequency threshold value and accumulative enabling duration threshold value
With the corresponding relation between ambient humidity section and environment temperature section.That is, in defrost entry condition mapping table, if
The corresponding relation being equipped between switch gate frequency threshold value and accumulative enabling duration threshold value and ambient humidity and environment temperature.This area
What technical staff can appreciate that, for any environment humidity value, it only exists in an area in this multiple ambient humidity section
Between.Equally, for any environment temperature value, it only exists in a section in this multiple environment temperature section.According to accumulative
After operating time determines corresponding defrost entry condition mapping table, then it can pass through the ambient humidity section residing for ambient humidity
Corresponding switch gate frequency threshold value and accumulative enabling duration threshold value are determined with the environment temperature section residing for environment temperature.
Fig. 3 is shown according to an embodiment of the invention determines corresponding defaultization according to cumulative activation duration
The indicative flowchart of white entry condition mapping table.With reference to Fig. 2 and Fig. 3, in step s 201, determined according to cumulative activation duration
Corresponding defrost entry condition mapping table is determined by step S301 and step S302.
Step S301, according to the multiple working time sections in advance dividing the cumulative activation duration of refrigerator, it is determined that accumulative
Working time section belonging to operating time.
Step S302, according to pre-setting, corresponding multiple defrost entry conditions are reflected respectively with multiple working time sections
Firing table, it is determined that defrost entry condition mapping table corresponding with the working time section belonging to cumulative activation duration.
In certain embodiments, can be prestored in refrigerator multiple working time sections and with each working time section
Corresponding multiple defrost entry condition mapping tables.
Table 1 shows corresponding between cumulative activation duration according to embodiments of the present invention and defrost entry condition mapping table
Relation.In table 1, by cumulative activation duration be divided into five the working time section.In an alternative embodiment, can be according to difference
Cumulative activation duration is divided into appropriate number of working time section by region residing for the refrigerator and refrigerator of volume.This area skill
Art personnel are appreciated that, for each working time section, it has corresponding defrost entry condition mapping table.For tired
Count operating time gradually the increased first to the 5th working time section (i.e. tg≤tg1, tg1<tg≤tg2、tg2<tg≤tg3、
tg3<Tg≤tg4 and tg4<Tg≤tg5), in five defrost entry conditions mapping table (first to the 5th corresponding with its difference
Defrost entry condition mapping table) in, when switch gate frequency threshold value corresponding to identical environment temperature and ambient humidity is with adding up to open the door
Long threshold value is gradually reduced.
Table 1
| Cumulative activation duration tg/h | ||
| tg≤tg1 | First the working time section | First defrost entry condition mapping table |
| tg1<tg≤tg2 | Second the working time section | Second defrost entry condition mapping table |
| tg2<tg≤tg3 | 3rd the working time section | 3rd defrost entry condition mapping table |
| tg3<tg≤tg4 | 4th the working time section | 4th defrost entry condition mapping table |
| tg4<tg≤tg5 | 5th the working time section | 5th defrost entry condition mapping table |
In some specific embodiments, tg1=24, tg2=36, tg3=48, tg4=60, tg5=96 in table 1,
I.e. by cumulative activation duration be divided into [0-24] h, (24-36] h, (36-48], (48-60] h, (60-96] five of h work when
Between section.This is the preferred embodiment for the division cumulative activation duration that present inventor obtains according to experiment.
When refrigerator is from when the cumulative activation duration after its last time initialization operation is in [0-24] h, opened using the first defrost
Dynamic condition mapping table determines the comparison parameter in defrost entry condition, i.e. switch gate frequency threshold value and accumulative enabling duration threshold value.
Wherein in cumulative activation duration before 12 hours, even if refrigerator switch gate number reaches switch gate frequency threshold value, accumulative enabling
The difference that duration reaches accumulative enabling duration threshold value, compartment temperature and compartment design temperature exceeds default difference range, not
Generation starts the trigger signal of defrost.
When refrigerator from the cumulative activation duration after its last time initialization operation (24-36] in h when, opened using the second defrost
Dynamic condition mapping table determines the comparison parameter in defrost entry condition.
When refrigerator from the cumulative activation duration after its last time initialization operation (36-48] it is interior when, opened using the 3rd defrost
Dynamic condition mapping table determines the comparison parameter in defrost entry condition.
When refrigerator from the cumulative activation duration after its last time initialization operation (48-60] in h when, opened using the 4th defrost
Dynamic condition mapping table determines the comparison parameter in defrost entry condition.
When refrigerator from the cumulative activation duration after its last time initialization operation (60-96] in h when, opened using the 5th defrost
Dynamic condition mapping table determines the comparison parameter in defrost entry condition.
If the cumulative activation duration of refrigerator reaches 96 hours, defrost entry condition is had not been met, then refrigerator is forced
Defrost, without considering whether it meets other defrost conditions.
Table 2 shows that the first defrost entry condition mapping table according to embodiments of the present invention (corresponds to cumulative activation duration
Between 0-24h), it comprises switch gate frequency threshold value n (units：Number) and accumulative enabling duration threshold value t (units：min)
With environment temperature T (units：DEG C) and ambient humidity RH (units：Corresponding relation between %).
Table 2
In the first defrost entry condition mapping table being shown in Table 2, ambient humidity range is divided into five ambient humidities
Section.For any environment humidity value, it only exists in a section in this five ambient humidity sections.Meanwhile by environment temperature
Degree scope is divided into three environment temperature sections.For any environment temperature value, it is only existed in these three environment temperature sections
A section.That is, any environment temperature and ambient humidity got for refrigerator, it is right with it always to be found in table 2
The switch gate frequency threshold value answered.
In an alternative embodiment, region can be drawn by ambient humidity range according to residing for the refrigerator and refrigerator of not co-content
It is divided into appropriate number of ambient humidity section, ambient temperature range is divided into appropriate number of environment temperature section.
In table 2, environment temperature T is higher, ambient humidity RH is higher, shutdown frequency threshold value n and accumulative enabling duration threshold value t
It is smaller；Environment temperature T is lower, ambient humidity RH is lower, and shutdown frequency threshold value n and accumulative enabling duration threshold value t are bigger.Usual ring
Simultaneously, ambient humidity RH is higher for border temperature T-phase, and shutdown frequency threshold value n and accumulative enabling duration threshold value t are smaller；Ambient humidity RH
When identical, environment temperature T is higher, and shutdown frequency threshold value n and accumulative enabling duration threshold value t are smaller.
In embodiments of the present invention, for the refrigerator of specific volume, for specific cumulative activation duration, the RH1- in table 2
RH4, T1-T2, n1-n15, t1-t15 concrete numerical value can obtain according to experiment.
Table 3 shows the first defrost entry condition for being applied to the refrigerator that volume is 216 liters of some embodiments of the invention
Mapping table (corresponds to cumulative activation duration between 0-24h), wherein by RH1-RH4, T1-T2, n1-n15, t1- in table 2
T15 is replaced by concrete numerical value.
Table 3
The concrete numerical value of RH1-RH4, T1-T2 in table 3 in corresponding table 2, it is that present inventor obtains according to experiment
Division ambient temperature range and ambient humidity range preferred embodiment.N1-n15, t1-t15's in table 3 in corresponding table 2
Concrete numerical value is then that present inventor obtains according to experiment.For the refrigerator of not co-content, can be chosen and table 3 by testing
Identical or different ambient temperature range and the dividing mode of ambient humidity range, then be determined by experiment in table 3 and each environment
Switch gate frequency threshold value and accumulative enabling duration threshold value corresponding to temperature range and each ambient humidity section.
Ambient humidity section suitable for the second to the 5th defrost entry condition mapping table of the refrigerator that volume is 216 liters
Can be identical with the first defrost entry condition mapping table with environment temperature interval division, but with the first defrost entry condition map in
Switch gate frequency threshold value corresponding to identical ambient humidity section and identical environment temperature section is different with accumulative enabling duration threshold value
It is or incomplete same.Those skilled in the art can obtain switch gate frequency threshold value and accumulative enabling duration threshold value by testing
Concrete numerical value, do not list one by one herein.
It will be understood by those skilled in the art that when the defrost entry condition referred in step S102 only includes switch gate number
When reaching switch gate frequency threshold value, switch gate frequency threshold value can be also determined according to the similar mode with Fig. 2 and Fig. 3.Changing
The corresponding pass being provided with white entry condition mapping table between the ambient humidity of refrigerator and environment temperature and switch gate frequency threshold value
System.In step S202, switch gate number corresponding with ambient humidity and environment temperature is inquired about in defrost entry condition mapping table
Threshold value.Defrost entry condition mapping table herein can be identical with the defrost entry condition mapping table shown in table 2, or does not include changing
Accumulative enabling duration threshold value in white entry condition mapping table.
Fig. 4 is the indicative flowchart of the defrosting control method of refrigerator according to the preferred embodiment of the invention.In the implementation
In example, defrost entry condition is prestored in the memory of refrigerator, wherein defrost entry condition includes：Switch gate number reaches switch
The difference that door frequency threshold value, accumulative enabling duration reach accumulative enabling duration threshold value, compartment temperature and compartment design temperature exceeds
Default difference range, cumulative activation duration reach default most short preset duration, cumulative activation duration reaches default most long
Preset duration.Wherein, when cumulative activation duration reaches default most long preset duration, the triggering letter for starting defrost is directly generated
Number, without considering other defrost entry conditions；And when cumulative activation duration is not up to default most long preset duration, consider further that
Other defrost entry conditions.Correspondingly, foregoing difference range, most short preset duration, most long is also prestored in the memory of refrigerator
Preset duration, be provided with switch gate frequency threshold value and accumulative enabling duration threshold value and ambient humidity section and environment temperature section it
Between corresponding relation defrost entry condition mapping table and cumulative activation duration and defrost entry condition mapping table between pair
It should be related to (such as table 1).
As shown in figure 4, the defrosting control method of refrigerator according to the preferred embodiment of the invention can include step S401 extremely
Step S412.
Step S401, count the cumulative activation duration of refrigerator, switch gate number and accumulative enabling duration.
Step S402, judges whether cumulative activation duration reaches most long preset duration, if cumulative activation duration reaches most long
Preset duration, step S410 is performed, otherwise perform step S403.
Step S403, the corresponding defrost entry condition in working time section according to belonging to determining with it cumulative activation duration
Mapping table.
Step S404, switch gate corresponding with ambient humidity and environment temperature is inquired about in defrost entry condition mapping table
Number threshold value and accumulative enabling duration threshold value.
Step S405, judges whether switch gate number reaches switch gate frequency threshold value.If switch gate number reaches switch gate
Frequency threshold value, step S406 is performed, otherwise return to step S401.
Step S406, judges whether accumulative enabling duration reaches accumulative enabling duration threshold value.If accumulative enabling duration reaches
Accumulative enabling duration threshold value, performs step S407, otherwise return to step S401.
Step S407, judges whether compartment temperature and the difference of compartment design temperature exceed default difference range.In step
Compartment temperature and compartment design temperature should be obtained before rapid S407.If difference exceeds default difference range, step S408 is performed,
Otherwise return to step S401.
Step S408, judges whether cumulative activation duration reaches default most short preset duration.If it is up to during cumulative activation
To default most short preset duration, step S410 is performed, otherwise performs step S409.In an alternative embodiment, when accumulative work
When being not up to default most short preset duration as duration, step S401 also can return to.
Step S409, cumulative activation duration is reacquired, until cumulative activation duration generates when reaching most short preset duration
Start the trigger signal of defrost.
Step S410, generation start the trigger signal of defrost.
Step S411, defrost is carried out to refrigerator.The current operation of refrigerator after step S410, can be stopped immediately, perform ice
The defrosting operation of case.Certainly, also can be after refrigerator completes current operation, then perform the defrosting operation of refrigerator.Further, also may be used
After prefixed time interval after the trigger signal that generation starts defrost, the defrosting operation of refrigerator is performed.
Step S412, held after refrigerator completes defrost and when the compressor of refrigerator starts first or during refrigerator electrifying startup
The initialization operation that row is zeroed out to switch gate number, accumulative enabling duration and cumulative activation duration.
It will be understood by those skilled in the art that during judging whether refrigerator meets defrost entry condition, for ice
Whether case meets that each subconditional judgment step in defrost entry condition is no specific execution sequence.Judge switch
Whether door number reaches switch gate frequency threshold value, judges whether accumulative enabling duration reaches between accumulative enabling duration threshold value, judgement
Whether room temperature and the difference of compartment design temperature exceed default difference range, judge whether cumulative activation duration reaches default
Most short preset duration, judge not have the step of whether cumulative activation duration reaches default most long preset duration it is specific perform it is suitable
Sequence.
The defrosting control method of the present invention is not limited to refrigerator, it can also be used to which the fridge-freezers such as such as refrigerator are removed
Frost.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, still can be direct according to present disclosure without departing from the spirit and scope of the present invention
It is determined that or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognized
It is set to and covers other all these variations or modifications.
Claims (4)
1. a kind of defrosting control method of refrigerator, including：
The refrigerator is counted from the cumulative activation duration and switch gate number after its last time initialization operation, and obtains the refrigerator
Environment temperature and ambient humidity；
The default defrost entry condition of the refrigerator is obtained, the defrost entry condition includes：The switch gate number reaches out
Shutdown frequency threshold value, wherein the switch gate frequency threshold value is according to the cumulative activation duration, the ambient humidity and the ring
Border temperature determines；
Judge whether the refrigerator meets the defrost entry condition, if the refrigerator meets the defrost entry condition, give birth to
Into the trigger signal for starting defrost；
The defrost entry condition also includes：The refrigerator reaches accumulative from the accumulative enabling duration after its last time initialization operation
Enabling duration threshold value, wherein the accumulative enabling duration threshold value is according to the cumulative activation duration, the ambient humidity and described
Environment temperature determines；
Also include obtaining the accumulative enabling duration before judging whether the refrigerator meets defrost entry condition；
The defrost entry condition also includes：The compartment temperature of the refrigerator exceeds default difference with the difference of compartment design temperature
It is worth scope；
Also include obtaining the compartment temperature before judging whether the refrigerator meets defrost entry condition and the compartment is set
Constant temperature degree；
The compartment temperature includes temperature of refrigerating chamber and freezer temperature；
The compartment design temperature includes refrigerating chamber design temperature and refrigerating chamber design temperature；
The difference range includes refrigeration difference range and freezing difference range；
The difference of the compartment temperature of the refrigerator and compartment design temperature includes beyond default difference range：The refrigeration room temperature
The difference of degree and the refrigerating chamber design temperature exceeds default refrigeration difference range, and the freezer temperature and the freezing
The difference of room design temperature exceeds default freezing difference range；
The defrost entry condition also includes：The cumulative activation duration reaches default most short preset duration；
The step of obtaining the defrost entry condition includes：
Corresponding defrost entry condition mapping table is determined according to the cumulative activation duration；The defrost entry condition mapping
It is provided with table between the ambient humidity of the refrigerator and environment temperature and switch gate frequency threshold value and accumulative enabling duration threshold value
Corresponding relation；
Switch gate number threshold corresponding with the ambient humidity and environment temperature is inquired about in the defrost entry condition mapping table
Value and accumulative enabling duration threshold value；
Determine that corresponding default defrost entry condition mapping table includes according to the cumulative activation duration：
According to the multiple working time sections in advance dividing the cumulative activation duration of the refrigerator, when determining the cumulative activation
Working time section belonging to long；
Distinguish corresponding multiple defrost entry condition mapping tables with the multiple working time section according to pre-setting,
It is determined that defrost entry condition mapping table corresponding with the working time section belonging to the cumulative activation duration；
In the defrost entry condition mapping table,
The ambient humidity range of the refrigerator is divided into multiple ambient humidity sections；
The ambient temperature range of the refrigerator is divided into multiple environment temperature sections；
Establish the switch gate frequency threshold value and the accumulative enabling duration threshold value and the ambient humidity section and the environment
Corresponding relation between temperature range.
2. defrosting control method according to claim 1, also include after the cumulative activation duration of the refrigerator is counted：
Judge whether the cumulative activation duration reaches default most long preset duration,
If the cumulative activation duration reaches the most long preset duration, the trigger signal is directly generated；Otherwise, institute is performed
State the obtaining step of defrost entry condition.
3. defrosting control method according to claim 1, also include after generation starts the trigger signal of defrost：
Defrost is carried out to the refrigerator.
4. defrosting control method according to claim 3, in addition to：
Performed after the refrigerator completes defrost and when the compressor of the refrigerator starts first or during the refrigerator electrifying startup
The initialization operation, the initialization operation include：
The switch gate number, the accumulative enabling duration and the cumulative activation duration are zeroed out.
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| CN106931714A (en) * | 2015-12-30 | 2017-07-07 | 青岛海尔智能技术研发有限公司 | Refrigeration plant and its control method |
| TWI636225B (en) * | 2016-07-26 | 2018-09-21 | 聲寶股份有限公司 | Intellectual temperature controlling method of refrigerator |
| CN106440609A (en) * | 2016-10-24 | 2017-02-22 | 南京创维家用电器有限公司 | Refrigerator defrosting control method and system |
| CN107940874A (en) * | 2017-11-22 | 2018-04-20 | 合肥华凌股份有限公司 | Refrigerator intelligent defrosting control method, controller and refrigeration plant and storage medium |
| CN108007065A (en) * | 2017-11-30 | 2018-05-08 | Tcl家用电器（合肥）有限公司 | Defrosting control method, device, computer equipment and the storage medium of refrigerator |
| CN108168197B (en) * | 2017-12-27 | 2020-04-21 | 青岛海尔股份有限公司 | Refrigerator and defrosting control method thereof |
| CN108426412B (en) * | 2018-05-28 | 2020-08-25 | 海信（山东）冰箱有限公司 | Defrosting control method and device for refrigerator and refrigerator |
| CN111089452A (en) * | 2018-10-23 | 2020-05-01 | 博西华电器（江苏）有限公司 | Refrigerator control method and refrigerator applying same |
| CN109855356B (en) * | 2019-01-04 | 2020-09-29 | 海尔智家股份有限公司 | Refrigerator and method for judging frosting degree of evaporator in refrigerator |
| CN112179013B (en) * | 2019-07-05 | 2022-06-14 | 青岛海尔智能技术研发有限公司 | Refrigerating and freezing device and defrosting control method thereof |
| CN110701866B (en) * | 2019-11-20 | 2022-02-01 | 合肥晶弘电器有限公司 | Defrosting control method of refrigerator and refrigerator |
| CN111536738B (en) * | 2020-04-24 | 2022-03-18 | 海信（山东）冰箱有限公司 | Refrigerator and control method thereof |
| CN113915919B (en) * | 2021-03-31 | 2023-03-21 | 海信冰箱有限公司 | Refrigerator and refrigerator defrosting control method |
| CN114322411A (en) * | 2021-12-30 | 2022-04-12 | Tcl家用电器（合肥）有限公司 | Control method and device of refrigeration equipment, storage medium and refrigeration equipment |
| CN114963658A (en) * | 2022-05-10 | 2022-08-30 | 珠海格力电器股份有限公司 | Refrigerator control method, readable storage medium and refrigerator |
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