CN105928316A - Control method and system of inverter compressor, and refrigerator - Google Patents
Control method and system of inverter compressor, and refrigerator Download PDFInfo
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- CN105928316A CN105928316A CN201610291095.6A CN201610291095A CN105928316A CN 105928316 A CN105928316 A CN 105928316A CN 201610291095 A CN201610291095 A CN 201610291095A CN 105928316 A CN105928316 A CN 105928316A
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- frequency
- changeable compressor
- temperature
- current
- refrigerator
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- 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
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- 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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a control method and system of an inverter compressor, and a refrigerator. The control method of the inverter compressor comprises the steps of setting frequency raising conditions of the inverter compressor; acquiring operating parameters of the refrigerator after the inverter compressor starts; and determining whether to raise the current operating frequency of the inverter compressor according to the refrigerator operating parameters and the frequency raising conditions of the inverter compressor. According to the control method and system of the inverter compressor, and the refrigerator, operating gears of the inverter compressor can be automatically adjusted according to a load and a practical refrigeration effect of the refrigerator in the operating process of the inverter compressor of the refrigerator; a refrigerating chamber and a freezing chamber can automatically work in appropriate operating modes; not only is the customer use more convenient and fast, but also the slow cooling problem due to a long term of operating at a certain rotation speed of the refrigerator is solved; the refrigeration effect of the refrigerator is effectively improved, and the service life of the refrigerator is effectively prolonged; and at the same time, the energy consumption is lowered, and the market competitiveness of the refrigerator is improved.
Description
Technical field
The present invention relates to refrigerator control field, particularly to a kind of frequency-changeable compressor control method, control system
System and refrigerator.
Background technology
In prior art, the frequency-changeable compressor of refrigerator is generally configured with multiple rotating speed, for different environment temperature
Degree and refrigeration request, can be divided into different gears by the rotating speed of frequency-changeable compressor.In actual motion,
According to user's design temperature, current environmental temperature and refrigeration demand, the operation frequency to refrigerator frequency-changeable compressor
Rate is controlled.The defect of prior art is, the refrigerating capacity of refrigerator and effect are not only with current environment
Temperature is relevant with refrigeration demand, also relevant with putting the food even load of refrigerator into.Such as work as ambient temperature
Time the lowest, frequency-changeable compressor can select to operate with the slow-speed of revolution according to low ring temperature, but if at this moment in refrigerator
Having put a lot of food, refrigerator still operates with the slow-speed of revolution for a long time, then when the temperature in refrigerator is with regard to president
Between can not drop, not only cause that cooling time is long, more power consumption, and the refrigeration effect of refrigerator can be reduced
Really, it is difficult to meet the preservation demand of food.
Summary of the invention
The technical problem to be solved is to provide a kind of frequency-changeable compressor control method, control system
And refrigerator, solve prior art and can only control the fortune of frequency-changeable compressor according to ambient temperature and refrigeration demand
Line frequency thus cause that compressor operating time is long, refrigeration is the best and the technology of more power consumption is asked
Topic.
The technical scheme is that a kind of frequency-changeable compressor control method,
Comprise the following steps:
Step 1, sets frequency-changeable compressor raising frequency condition；
Step 2, after frequency-changeable compressor starts, gathers refrigerator operational factor；
Step 3, according to refrigerator operational factor and frequency-changeable compressor raising frequency condition, it may be judged whether to frequency conversion pressure
The current operation frequency of contracting machine carries out raising frequency, and controls described frequency-changeable compressor according to judged result.
The invention has the beneficial effects as follows: the present invention can in refrigerator frequency-changeable compressor running, according to
The operational factor of refrigerator adjusts the operational taps of frequency-changeable compressor automatically, makes cold room, refrigerating chamber automatically enter
Entering suitable mode of operation, not only user's use is more convenient, and refrigerator can be avoided for a long time with certain
One rotation speed operation and cause problem slowly of lowering the temperature, be effectively improved refrigerator refrigeration and use the longevity
Life, reduces energy consumption simultaneously, thus improves the market competitiveness of refrigerator.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described refrigerator operational factor includes frequency-changeable compressor current operation frequency, frequency-changeable compressor
Time, current temperature of refrigerating chamber and the current freezer temperature run continuously according to current operation frequency.
Above-mentioned further scheme is used to provide the benefit that: this further technical scheme is by gathering frequency conversion pressure
The time that contracting machine current operation frequency and frequency-changeable compressor run continuously according to current operation frequency can weigh
The loading condition of amount refrigerator；Permissible by gathering the parameter such as current temperature of refrigerating chamber and current freezer temperature
Weigh the actual refrigeration of refrigerator, thus realize the load according to refrigerator and automatically adjust with actual refrigeration
The operational taps of whole frequency-changeable compressor, makes cold compartment of refrigerator, refrigerating chamber etc. automatically into suitable Working mould
Formula.
Further, in step 1, frequency-changeable compressor raising frequency condition includes condition one, condition two or condition three,
Condition one is: frequency-changeable compressor runs default very first time t1 continuously with low frequency；Or frequency conversion
Compressor runs the second default time t2 continuously with medium frequency；
Condition two is: current temperature of refrigerating chamber is higher than the target refrigerated storage temperature preset, and current cold preservation room temperature
Degree and the difference of target refrigerated storage temperature reach the first default difference DELTA T1；
Condition three is: current freezer temperature is higher than the target cryogenic temperature preset, and current freezing room temperature
Degree and the difference of target cryogenic temperature reach the second default difference DELTA T2.
Further, respectively described condition one, condition two and condition three are judged, often meet a bar
Part, then the current operation frequency controlling frequency-changeable compressor rises one grade；If the condition of being unsatisfactory for, then control to become
Frequently compressor keeps current operation frequency to run.
Above-mentioned further scheme is used to provide the benefit that: in prior art, generally according to freezer compressor
Continuous operating time or the current refrigeration effect of refrigerator, individually judge whether to need to change compressor
Running frequency, this judgment mode can only affect the factor of compressor operating frequency in view of some, because of
This judged result is not accurate enough, and the refrigeration of refrigerator can not fully meet demand.And this further skill
In art scheme, three conditions are used to judge whether to need the current operation frequency to frequency-changeable compressor to carry out
Raising frequency, for three above condition, it is only necessary to meeting a condition can be to the current fortune of frequency-changeable compressor
Line frequency carries out raising frequency, if meeting multiple condition, then to carry out upshift folded for the running frequency to frequency-changeable compressor
Add.By arranging three above condition, can be on affecting the refrigerator load feelings that frequency-changeable compressor raising frequency judges
The factors such as condition and actual refrigeration carry out the evaluation of Comprehensive, then determine whether to raise refrigerator frequency conversion
The running frequency of compressor, and the degree raised, thus more effectively improve the refrigeration of refrigerator.
Further, step 2 is particularly as follows: gather frequency-changeable compressor current operation frequency, and compresses frequency conversion
The time that machine runs continuously according to current operation frequency carries out timing, when frequency-changeable compressor is out of service or
When the running frequency of frequency-changeable compressor changes, reclocking；Simultaneously when the first default collection
Between and the second acquisition time of presetting gather the current temperature of refrigerating chamber of refrigerator and current freezing room temperature respectively
Degree.
Further, step 3 particularly as follows:
S301 set very first time t1, the second time t2, target refrigerated storage temperature, target cryogenic temperature,
First difference DELTA T1 and the second difference DELTA T2；
S302 is low frequency when the current operation frequency of frequency-changeable compressor, and continuous operating time reaches the
During one time t1, the current operation frequency controlling frequency-changeable compressor rises one grade；Or work as frequency-changeable compressor
Current operation frequency be medium frequency, and when continuous operating time reaches the second time t2, control frequency conversion pressure
The current operation frequency of contracting machine rises one grade；Or when the current operation frequency of frequency-changeable compressor is high frequency
Rate, then keep frequency-changeable compressor to run continuously according to altofrequency；
S303 often gathers once current temperature of refrigerating chamber, it is judged that whether current temperature of refrigerating chamber is higher than target
Refrigerated storage temperature, and whether current temperature of refrigerating chamber and the difference of target refrigerated storage temperature reach default first poor
Value Δ T1, the most then the current operation frequency controlling frequency-changeable compressor continues to rise one grade；If it is not, then
Frequency-changeable compressor is kept to run according to current operation frequency；
S304 often gathers once current freezer temperature, it is judged that whether current freezer temperature is higher than target
Cryogenic temperature, and whether current freezer temperature and the difference of target cryogenic temperature reach default second poor
Value Δ T2, the most then the current operation frequency controlling frequency-changeable compressor continues to rise one grade；If it is not, then
Frequency-changeable compressor is kept to run according to current operation frequency；
Described step S302, step S303 and step S304 are parallel and each self-loopa is carried out.
Above-mentioned further scheme is used to provide the benefit that: in this further technical scheme, refrigerator to be run
The judge process of the gatherer process of parameter and three conditions has carried out concrete restriction.Condition 1 is used
The judge process of S302, uses the judge process of S303 for condition 2, for condition 3, uses S304
Judge process, three above judge process is the parallel procedure simultaneously carried out, as long as i.e. meeting any bar
Part, just upshifts to the current operation frequency of frequency-changeable compressor, meanwhile, with the running frequency after upshift
On the basis of, proceed the judgement of above-mentioned condition, when meeting raising frequency condition, to the operation frequency after upshift
Rate upshifts again, i.e. running frequency is carried out gear superposition, until compressor shutdown or the frequency of compressor
Reach highest frequency.After the current operation frequency of frequency-changeable compressor is upshiftd, if the refrigeration of refrigerator
When effect has reached compressor start, the target refrigeration effect arranged according to ambient temperature and user's refrigeration demand
Really, the most described frequency-changeable compressor is automatically stopped and runs or be controlled according to conventional control mode.
Meanwhile, the judge process of above-mentioned S302, S303 and S304, is also three of the most constantly circulation
Process, such as step S303 and S304, often gather a current temperature of refrigerating chamber and current freezing room temperature
Degree, just carries out a judge process.For step S302, to frequency-changeable compressor with the frequency after raising even
The time of reforwarding row carries out timing, during until frequency-changeable compressor is out of service or rotating speed changes, and weight
New timing.When compressor is more than the setting time with the persistent period that the frequency after raising is run, again rise
The running frequency of high described frequency-changeable compressor, circulation performs above-mentioned steps, until compressor shutdown or pressure
The frequency of contracting machine reaches highest frequency.
Use this further technical scheme, can be on affecting the refrigerator load feelings that frequency-changeable compressor raising frequency judges
The factors such as condition and actual refrigeration carry out the evaluation of more Comprehensive, then determine whether to raise frequency conversion
The running frequency of compressor, and the degree raised, thus more effectively improve the refrigeration of refrigerator.
Further, in described step S303 and S304, before current running frequency is risen one grade,
First judge whether the running frequency after upshift has exceeded the highest frequency of frequency-changeable compressor, if having exceeded the highest
Frequency, then run according to the highest frequency of frequency-changeable compressor；If being not above highest frequency, then according to liter
Running frequency after Dang is run.
Above-mentioned further scheme is used to provide the benefit that: this further technical scheme can ensure that ice
When the rotating speed that case frequency-changeable compressor runs has reached limit speed corresponding to highest frequency, no longer raise frequency conversion
The rotating speed of compressor, thus ensure that the use safety of frequency-changeable compressor, improve making of frequency-changeable compressor
Use the life-span.
A kind of frequency-changeable compressor control system, including raising frequency condition setting module, operational factor acquisition module
With a liter frequency module,
Described raising frequency condition setting module is used for setting frequency-changeable compressor raising frequency condition；
Described operational factor acquisition module is used for gathering refrigerator operational factor；
Described raising frequency judge module is for according to refrigerator operational factor and frequency-changeable compressor raising frequency condition, it is judged that
Current operation frequency to frequency-changeable compressor carries out raising frequency, and controls described frequency conversion according to judged result
Compressor.
The invention has the beneficial effects as follows: the invention provides a kind of frequency-changeable compressor control system, it is not necessary to people
For operation, can be in refrigerator frequency-changeable compressor running, during according to the actual motion of frequency-changeable compressor
Between weigh the load of refrigerator, thus the load and actual refrigeration according to refrigerator automatically adjusts frequency conversion and compresses
The operational taps of machine, makes cold room, refrigerating chamber automatically into suitable mode of operation, and not only user uses
More convenient, and refrigerator can be avoided with a certain rotation speed operation to cause cooling to ask slowly for a long time
Topic, is effectively improved refrigeration and the service life of refrigerator, reduces energy consumption simultaneously, thus improve
The market competitiveness of refrigerator.
Further, described operational factor acquisition module includes:
First collecting unit, for gathering the current operation frequency of frequency-changeable compressor；
Timing unit, based on the time by running frequency-changeable compressor continuously according to current operation frequency carries out
Time, and when frequency-changeable compressor is out of service or the running frequency of frequency-changeable compressor changes, again
Timing；
Second collecting unit, for gathering the current temperature of refrigerating chamber of refrigerator every the first acquisition time；
3rd collecting unit, for gathering the current freezer temperature of refrigerator every the second acquisition time.
Further, described liter of frequency module includes:
Setup unit is used for setting very first time t1, the second time t2, target refrigerated storage temperature, target freezing
Temperature, the first difference DELTA T1 and the second difference DELTA T2；
First judging unit, is used for judging whether frequency-changeable compressor runs continuously with low frequency, and transports continuously
The row time reaches described very first time t1；And judge whether frequency-changeable compressor runs continuously with medium frequency,
And continuous operating time reaches described second time t2；And judge whether to run with altofrequency；And according to
Judged result, generates control instruction and is sent to described control unit；
Second judging unit, for often gathering once current temperature of refrigerating chamber, it is judged that current temperature of refrigerating chamber
Whether higher than described target refrigerated storage temperature, and whether the difference of current temperature of refrigerating chamber and target refrigerated storage temperature
Reach the first difference DELTA T1, and according to judged result, generate control instruction and be sent to described 4th judgement list
Unit；
3rd judging unit, for often gathering once current freezer temperature, it is judged that current freezer temperature
Whether higher than target cryogenic temperature, and currently whether freezer temperature reaches with the difference of target cryogenic temperature
Second difference DELTA T2, and according to judged result, generate control instruction and be sent to described 4th judging unit；
4th judging unit, for receiving described second judging unit and the control of the 3rd judging unit transmission
Instruction, when needing to upshift current operation frequency according to control instruction, it is judged that the operation after upshift
Whether frequency has exceeded the highest frequency of frequency-changeable compressor, and according to judged result, generates control instruction and send out
Give described control unit；
Control unit, is used for controlling frequency-changeable compressor and runs according to described control instruction.
Further, described control instruction includes that the current operation frequency for controlling frequency-changeable compressor rises
First control instruction of one grade and keep the second control of current operation frequency for controlling frequency-changeable compressor
Instruction.
A kind of refrigerator, including above-described frequency-changeable compressor control system.
The invention has the beneficial effects as follows: the invention provides a kind of refrigerator, it is not necessary to manual operation, Ke Yi
In refrigerator frequency-changeable compressor running, weigh the negative of refrigerator according to the actual run time of frequency-changeable compressor
Carry, thus the load and actual refrigeration according to refrigerator adjust the operational taps of frequency-changeable compressor automatically,
Making cold room, refrigerating chamber automatically into suitable mode of operation, not only user's use is more convenient, and
Refrigerator can be avoided to cause, with a certain rotation speed operation, problem slowly of lowering the temperature for a long time, be effectively improved ice
The refrigeration of case and service life, reduce energy consumption simultaneously, thus improve the market competitiveness of refrigerator.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the present invention a kind of frequency-changeable compressor control method；
Fig. 2 is the structural representation of the present invention a kind of frequency-changeable compressor control system；
Fig. 3 is the structural representation of a kind of refrigerator of the present invention；
Fig. 4 is the logic chart of the frequency-changeable compressor control method of the embodiment of the present invention.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining this
Invention, is not intended to limit the scope of the present invention.
The refrigerator of the present invention at least include cold room, refrigerating chamber, be arranged in cold room at least one is cold
Hide temperature sensor, at least one the cryogenic temperature sensor being arranged in refrigerating chamber and control cold room
Temperature and the frequency-changeable compressor of freezer temperature.Can obtain the coldest by described refrigerated storage temperature sensor
Hide room temperature, current freezer temperature can be obtained by described cryogenic temperature sensor.
In various embodiments, described refrigerated storage temperature sensor and freezing can be set according to actual needs
The quantity of temperature sensor.Such as in the whole space of cold room and refrigerating chamber, zones of different may be deposited
In temperature contrast, such as when awfully hot food being put into cold room, near the temperature in the region of food periphery
The temperature that could possibly be higher than cold room other regions interior is a lot, when refrigerator temperature sensor is arranged far from institute
When stating the position of food, the temperature of refrigerating chamber that may collect is relatively low, thus can not actual response cold room
Temperature, affect the refrigeration of refrigerator.Therefore can in cold room and the zones of different of refrigerating chamber, if
Put multiple refrigerated storage temperature sensor and cryogenic temperature sensor, in conjunction with all refrigerated storage temperature sensors and freezing
The Temperature numerical that temperature sensor collects, comprehensively comments the actual temperature of cold room and refrigerating chamber
Estimate, obtain to react cold room and the numerical value of refrigerating chamber actual temperature.Such as collect is the highest
Temperature is as cold room Current Temperatures or refrigerating chamber Current Temperatures；Or in cold room and refrigerating chamber
Position, centre is respectively provided with main refrigerated storage temperature sensor and main freezing position sensor, at cold room and refrigerating chamber
Other regions be respectively provided with auxiliary refrigerated storage temperature sensor and auxiliary freezing position sensor, with described main cold preservation
Temperature on the basis of the temperature that temperature sensor and main freezing position sensor collect, by auxiliary refrigerated storage temperature
The temperature that sensor and auxiliary freezing position sensor collect, is modified described fiducial temperature, thus
Obtain cold room Current Temperatures or refrigerating chamber Current Temperatures.
In prior art, when the startup of refrigerator frequency-changeable compressor, refrigerator start to freeze, set according to user
Refrigeration gear and current environmental temperature determine benchmark gear, then the compressor of refrigerator is by the base to determine
Quasi-gear runs, if keeping constant in run duration, refrigeration gear and current environmental temperature, then and compressor
Rotating speed also keep constant.In general, when refrigerator is initially powered up, it is considered as compressor and opens；Or
After compressor a period of time out of service, the temperature of refrigerator has exceeded the temperature model that design temperature is corresponding
Enclosing, refrigerator needs automatic control compressor to bring into operation, and can be considered that compressor is opened.
The present invention, in refrigerator running, can change according to the time of actual motion and refrigeration automatically
Become the rotating speed of frequency-changeable compressor.
As it is shown in figure 1, be the schematic flow sheet of the present invention a kind of frequency-changeable compressor control method, including with
Lower step:
Step 1, sets frequency-changeable compressor raising frequency condition；
Step 2, after frequency-changeable compressor starts, gathers refrigerator operational factor；
Step 3, according to refrigerator operational factor and frequency-changeable compressor raising frequency condition, it may be judged whether to frequency conversion pressure
The current operation frequency of contracting machine carries out raising frequency, and controls described frequency-changeable compressor according to judged result.
The most specifically illustrate.
In the present embodiment, frequency-changeable compressor raising frequency condition includes three below:
Condition one: frequency-changeable compressor runs at least 2 hours continuously with low frequency；Or frequency-changeable compressor with
Medium frequency runs at least 1 hour continuously；
Condition two: current temperature of refrigerating chamber is higher at least 2 DEG C than the target refrigerated storage temperature preset；
Condition three: current freezer temperature is higher at least 3 DEG C than the target cryogenic temperature preset.
Described frequency-changeable compressor frequency possesses multiple gear, the different frequencies of each gear correspondence frequency-changeable compressor
Rate and rotating speed, divide low frequency, medium frequency and altofrequency according to the numbers of gear steps of frequency-changeable compressor.Such as
In the present embodiment, compressor frequency has 6 gears, by gear 1, the frequency 1 of gear 2 correspondence, frequently
Rate 2 is set as low frequency, gear 3, gear 4, the frequency 3 of gear 5 correspondence, frequency 4 and frequency 5
It is set as medium frequency, the frequency 6 of gear 6 correspondence is set as altofrequency.
When refrigerator runs at least 2h continuously with low frequency, compressor frequency rise one grade, when refrigerator with
When medium frequency runs at least 1h continuously, compressor frequency rises one grade.When refrigerator runs with altofrequency,
Compressor does not change rotating speed in running.
Meanwhile, after freezer compressor runs, gather temperature of refrigerating chamber every 30min, if temperature of refrigerating chamber
Than target refrigerated storage temperature when high 2 DEG C, compressor frequency rises one grade；Freezing room temperature is gathered every 30min
Degree, if freezer temperature is than target cryogenic temperature when high 3 DEG C, compressor frequency rises one grade.
Three above judge process is the process that parallel and each self-loopa is carried out, it is judged that logic chart such as Fig. 4 institute
Show.Often meet a condition, then the current operation frequency controlling frequency-changeable compressor rises one grade, if discontented
Foot condition, then control frequency-changeable compressor and keep current operation frequency to run.Current operation frequency is being carried out
Before gear superposition, first judge whether the running frequency after gear superposition has exceeded the high frequency of frequency-changeable compressor
Rate, if having exceeded highest frequency, then runs according to the highest frequency of frequency-changeable compressor；If being not above
Altofrequency, then run according to the running frequency after gear superposition.Adopt in this way, impact can be become
The factors such as the refrigerator loading condition of compressor raising frequency judgement frequently and actual refrigeration are combined more comprehensively
The evaluation closed, then determines whether to raise the running frequency of refrigerator frequency-changeable compressor, and the degree raised,
Thus more effectively improve the refrigeration of refrigerator.Such as add suddenly the most awfully hot food at cold room
Thing, the temperature of cold room will rise rapidly, it is possible to causes temperature of refrigerating chamber to be higher than cold room preset temperature
Reach more than 2 degrees Celsius, it is therefore desirable to raise the gear of frequency-changeable compressor, accelerate to reduce the temperature of cold room
Degree.Or put into suddenly a lot of awfully hot food at refrigerating chamber simultaneously, the temperature of refrigerating chamber will rapidly
Rise, it is possible to cause freezer temperature to be higher than refrigerating chamber preset temperature more than 3 degrees Celsius, it is therefore desirable to
Raise the gear of frequency-changeable compressor, accelerate to reduce the temperature of refrigerating chamber, now can be by the gear of compressor
Improve two gears, accelerate the cooling rate of refrigerator, improve the preservation effect of food.
As in figure 2 it is shown, be the structural representation of the present invention a kind of frequency-changeable compressor control system, including:
Raising frequency condition setting module, is used for setting frequency-changeable compressor raising frequency condition；
Operational factor acquisition module, is used for gathering refrigerator operational factor；
Raising frequency judge module, for according to refrigerator operational factor and frequency-changeable compressor raising frequency condition, it is judged that be
The no current operation frequency to frequency-changeable compressor carries out raising frequency, and controls described frequency conversion pressure according to judged result
Contracting machine.
In the present embodiment, described operational factor acquisition module includes:
First collecting unit, for gathering the current operation frequency of frequency-changeable compressor；
Timing unit, based on the time by running frequency-changeable compressor continuously according to current operation frequency carries out
Time, and when frequency-changeable compressor is out of service or the running frequency of frequency-changeable compressor changes, again
Timing；
Second collecting unit, for gathering the current temperature of refrigerating chamber of refrigerator every the first acquisition time；
3rd collecting unit, for gathering the current freezer temperature of refrigerator every the second acquisition time.
Described liter of frequency module includes:
Setup unit, is used for setting very first time t1, the second time t2, target refrigerated storage temperature, target cold
Freeze temperature, the first difference DELTA T1 and the second difference DELTA T2；
First judging unit, is used for judging whether frequency-changeable compressor runs continuously with low frequency, and transports continuously
The row time reaches described very first time t1；And judge whether frequency-changeable compressor runs continuously with medium frequency,
And continuous operating time reaches described second time t2；And judge whether to run with altofrequency；And according to
Judged result, generates control instruction and is sent to described control unit；
Second judging unit, for often gathering once current temperature of refrigerating chamber, it is judged that current temperature of refrigerating chamber
Whether higher than described target refrigerated storage temperature, and whether the difference of current temperature of refrigerating chamber and target refrigerated storage temperature
Reach the first difference DELTA T1, and according to judged result, generate control instruction and be sent to described 4th judgement list
Unit；
3rd judging unit, for often gathering once current freezer temperature, it is judged that current freezer temperature
Whether higher than target cryogenic temperature, and currently whether freezer temperature reaches with the difference of target cryogenic temperature
Second difference DELTA T2, and according to judged result, generate control instruction and be sent to described 4th judging unit；
4th judging unit, for before carrying out gear superposition to current operation frequency, it is judged that gear superposition
After running frequency whether exceeded the highest frequency of frequency-changeable compressor, and according to judged result, generate control
Instruction processed is sent to described control unit；
Described control unit is used for controlling frequency-changeable compressor and runs according to described control instruction.
As it is shown on figure 3, be the structural representation of a kind of refrigerator of the present invention, including above-described frequency conversion pressure
Contracting machine control system.
The invention provides a kind of frequency-changeable compressor control method, control system and refrigerator, it is not necessary to artificially grasp
Make, can weigh according to the actual run time of frequency-changeable compressor in refrigerator frequency-changeable compressor running
The load of amount refrigerator, thus the load and actual refrigeration according to refrigerator adjusts frequency-changeable compressor automatically
Operational taps, makes cold room, refrigerating chamber automatically into suitable mode of operation, and not only user uses more
Convenient, and refrigerator can be avoided to cause, with a certain rotation speed operation, problem slowly of lowering the temperature for a long time, have
Effect improves refrigeration and the service life of refrigerator, reduces energy consumption simultaneously, thus improves refrigerator
The market competitiveness.
In describing the invention, it is to be understood that term " first ", " second " are only used for retouching
State purpose, and it is not intended that instruction or hint relative importance or implicit indicate that indicated technology is special
The quantity levied.Thus, define " first ", the feature of " second " can be expressed or impliedly wrap
Include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as
Two, three etc., unless otherwise expressly limited specifically.
In the description of this specification, reference term " embodiment ", " some embodiments ", " show
Example ", the description of " concrete example " or " some examples " etc. means to combine this embodiment or example is retouched
Specific features, structure, material or the feature stated is contained at least one embodiment or the example of the present invention
In.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment
Or example.And, the specific features of description, structure, material or feature can be with in office one or more
Embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area
Technical staff can by the different embodiments described in this specification or example and different embodiment or
The feature of example is combined and combines.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-mentioned enforcement
Example is exemplary, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art is at this
Above-described embodiment can be changed in bright scope, revise, replace and modification.
Claims (12)
1. a frequency-changeable compressor control method, it is characterised in that comprise the following steps:
Step 1, sets frequency-changeable compressor raising frequency condition；
Step 2, after frequency-changeable compressor starts, gathers refrigerator operational factor；
Step 3, according to refrigerator operational factor and frequency-changeable compressor raising frequency condition, it may be judged whether to frequency conversion pressure
The current operation frequency of contracting machine carries out raising frequency, and controls described frequency-changeable compressor according to judged result.
Frequency-changeable compressor control method the most according to claim 1, it is characterised in that described ice
Case operational factor includes that frequency-changeable compressor current operation frequency, frequency-changeable compressor are according to current operation frequency even
The time of reforwarding row, current temperature of refrigerating chamber and current freezer temperature.
Frequency-changeable compressor control method the most according to claim 1 and 2, it is characterised in that step
In rapid 1, frequency-changeable compressor raising frequency condition includes:
Condition one: frequency-changeable compressor runs the default very first time continuously with low frequency；Or frequency conversion is compressed
Machine runs the second default time continuously with medium frequency；
Condition two: current temperature of refrigerating chamber is higher than the target refrigerated storage temperature preset, and current temperature of refrigerating chamber
The first default difference is reached with the difference of target refrigerated storage temperature；
Condition three: current freezer temperature is higher than the target cryogenic temperature preset, and current freezer temperature
The second default difference is reached with the difference of target cryogenic temperature.
Frequency-changeable compressor control method the most according to claim 3, it is characterised in that step 3
In, respectively described condition one, condition two and condition three are judged, often meet a condition, then control
The current operation frequency of frequency-changeable compressor processed rises one grade；If the condition of being unsatisfactory for, then control frequency-changeable compressor
Current operation frequency is kept to run.
Frequency-changeable compressor control method the most according to claim 4, it is characterised in that step 2
Particularly as follows:
Gather frequency-changeable compressor current operation frequency, and continuous according to current operation frequency to frequency-changeable compressor
The time run carries out timing, when frequency-changeable compressor is out of service or the running frequency of frequency-changeable compressor is sent out
During raw change, reclocking；Gather the current cold room of refrigerator every the first default acquisition time simultaneously
Temperature, gathers the current freezer temperature of refrigerator every the second default acquisition time.
Frequency-changeable compressor control method the most according to claim 5, it is characterised in that step 3
Particularly as follows:
S301 is low frequency when the current operation frequency of frequency-changeable compressor, and continuous operating time reaches pre-
If the very first time time, control frequency-changeable compressor current operation frequency rise one grade；Or when frequency conversion pressure
The current operation frequency of contracting machine is medium frequency, and when continuous operating time reaches default second time, control
The current operation frequency of frequency-changeable compressor processed rises one grade；Or the current operation frequency when frequency-changeable compressor
For altofrequency, then frequency-changeable compressor is kept to run continuously according to altofrequency；
S302 often gathers once current temperature of refrigerating chamber, it is judged that whether current temperature of refrigerating chamber is higher than presetting
Target refrigerated storage temperature, and whether the difference of current temperature of refrigerating chamber and target refrigerated storage temperature reach default
First difference, the most then the current operation frequency controlling frequency-changeable compressor continues to rise one grade, if it is not,
Frequency-changeable compressor is then kept to run according to current operation frequency；
S303 often gathers once current freezer temperature, it is judged that whether current freezer temperature is higher than presetting
Target cryogenic temperature, and whether the difference of current freezer temperature and target cryogenic temperature reach default
Second difference, the most then the current operation frequency controlling frequency-changeable compressor continues to rise one grade, if it is not,
Frequency-changeable compressor is then kept to run according to current operation frequency；
Described step S301, step S302 and step S303 are parallel and each self-loopa is carried out.
Frequency-changeable compressor control method the most according to claim 6, it is characterised in that described step
In rapid S302 and S303, before current running frequency is risen one grade, first judge the operation after upshift
Whether frequency has exceeded the highest frequency of frequency-changeable compressor, if having exceeded highest frequency, then according to frequency conversion pressure
The highest frequency of contracting machine runs；If being not above highest frequency, then run according to the running frequency after upshift.
8. a frequency-changeable compressor control system, it is characterised in that include raising frequency condition setting module,
Operational factor acquisition module and liter frequency module,
Described raising frequency condition setting module is used for setting frequency-changeable compressor raising frequency condition；
Described operational factor acquisition module is used for gathering refrigerator operational factor；
Described raising frequency judge module is for according to refrigerator operational factor and frequency-changeable compressor raising frequency condition, it is judged that
Current operation frequency to frequency-changeable compressor carries out raising frequency, and controls described frequency conversion according to judged result
Compressor.
Frequency-changeable compressor control system the most according to claim 8, it is characterised in that described fortune
Line parameter acquisition module includes:
First collecting unit, for gathering the current operation frequency of frequency-changeable compressor；
Timing unit, based on the time by running frequency-changeable compressor continuously according to current operation frequency carries out
Time, and when frequency-changeable compressor is out of service or the running frequency of frequency-changeable compressor changes, again
Timing；
Second collecting unit, for gathering the current cold preservation room temperature of refrigerator every the first default acquisition time
Degree；
3rd collecting unit, for gathering the current freezing room temperature of refrigerator every the second default acquisition time
Degree.
Frequency-changeable compressor control system the most according to claim 8, it is characterised in that described liter
Frequency module includes:
Setup unit, is used for setting the very first time, the second time, target refrigerated storage temperature, target freezing temperature
Degree, the first difference, the second difference, the first acquisition time and the second acquisition time；
First judging unit, is used for judging whether frequency-changeable compressor runs continuously with low frequency, and transports continuously
The row time reaches the described very first time；And judge whether frequency-changeable compressor runs continuously with medium frequency, and
Continuous operating time reaches described second time；And judge whether to run with altofrequency；And according to judgement
As a result, generate control instruction and be sent to described control unit；
Second judging unit, for often gathering once current temperature of refrigerating chamber, it is judged that current temperature of refrigerating chamber
Whether higher than described target refrigerated storage temperature, and whether the difference of current temperature of refrigerating chamber and target refrigerated storage temperature
Reach the first difference, and according to judged result, generate control instruction and be sent to described 4th judging unit；
3rd judging unit, for often gathering once current freezer temperature, it is judged that current freezer temperature
Whether higher than target cryogenic temperature, and currently whether freezer temperature reaches with the difference of target cryogenic temperature
Second difference, and according to judged result, generate control instruction and be sent to described 4th judging unit；
4th judging unit, for receiving described second judging unit and the control of the 3rd judging unit transmission
Instruction, when needing to upshift current operation frequency according to control instruction, it is judged that the operation after upshift
Whether frequency has exceeded the highest frequency of frequency-changeable compressor, and according to judged result, generates control instruction and send out
Give described control unit；
Control unit, is used for controlling frequency-changeable compressor and runs according to described control instruction.
11. frequency-changeable compressor control systems according to claim 10, it is characterised in that described
Control instruction includes that the first control of the current operation frequency rising one grade for controlling frequency-changeable compressor refers to
Make and keep for controlling frequency-changeable compressor the second control instruction of current operation frequency.
12. 1 kinds of refrigerators, it is characterised in that include the arbitrary described frequency conversion compression of claim 8～11
Machine control system.
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