CN105928316B - A kind of frequency-changeable compressor control method, control system and refrigerator - Google Patents
A kind of frequency-changeable compressor control method, control system and refrigerator Download PDFInfo
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- CN105928316B CN105928316B CN201610291095.6A CN201610291095A CN105928316B CN 105928316 B CN105928316 B CN 105928316B CN 201610291095 A CN201610291095 A CN 201610291095A CN 105928316 B CN105928316 B CN 105928316B
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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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- 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 present invention is more particularly directed to a kind of frequency-changeable compressor control method, control system and refrigerators.Method is the following steps are included: setting frequency-changeable compressor raising frequency condition；After frequency-changeable compressor starting, refrigerator operating parameter is acquired；According to refrigerator operating parameter and frequency-changeable compressor raising frequency condition, judge whether to carry out raising frequency to the current operation frequency of frequency-changeable compressor.The present invention can be in refrigerator frequency-changeable compressor operational process, according to the load of refrigerator and the operational taps of practical refrigeration effect adjust automatically frequency-changeable compressor, make refrigerating chamber, freezing chamber automatically into suitable operating mode, not only user's use is more convenient, and the slow problem that cools down can be caused with a certain rotation speed operation for a long time to avoid refrigerator, the refrigeration effect and service life of refrigerator are effectively improved, while reducing energy consumption, improves the market competitiveness of refrigerator.
Description
Technical field
The present invention relates to refrigerator control field, in particular to a kind of frequency-changeable compressor control method, control system and refrigerator.
Background technique
In the prior art, the frequency-changeable compressor of refrigerator is generally configured with multiple revolving speeds, for different environment temperature and refrigeration
The revolving speed of frequency-changeable compressor, can be divided into different gears by request.In actual operation, according to user's set temperature, current
Environment temperature and refrigeration demand control the running frequency of refrigerator frequency-changeable compressor.Drawback of the prior art is that refrigerator
Refrigerating capacity and effect it is not only related with refrigeration demand with current environmental temperature, also have with loads such as the foods of putting refrigerator into
It closes.Such as when environment temperature is very low, frequency-changeable compressor can select operate with the slow-speed of revolution according to low circumstance temperature, but if at this moment ice
A lot of foods are put in case, refrigerator is still operated for a long time with the slow-speed of revolution, then the temperature in refrigerator will can not drop any more for a long time
Come, not only cause that cooling time is too long, more power consumption, but also the refrigeration effect of refrigerator can be reduced, it is difficult to meet the preservation of food
Demand.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of frequency-changeable compressor control method, control system and refrigerator,
Solving the prior art can only be according to environment temperature and the running frequency of refrigeration demand control frequency-changeable compressor so as to cause compression
Machine runing time is too long, refrigeration effect is bad and more power consumption the technical issues of.
The technical scheme to solve the above technical problems is that a kind of frequency-changeable compressor control method, including it is following
Step:
Step 1, frequency-changeable compressor raising frequency condition is set；
Step 2, after frequency-changeable compressor starting, refrigerator operating parameter is acquired；
Step 3, according to refrigerator operating parameter and frequency-changeable compressor raising frequency condition, judge whether to the current of frequency-changeable compressor
Running frequency carries out raising frequency, and controls the frequency-changeable compressor according to judging result.
The beneficial effects of the present invention are: the present invention can be in refrigerator frequency-changeable compressor operational process, according to the fortune of refrigerator
The operational taps of row parameter adjust automatically frequency-changeable compressor, make refrigerating chamber, freezing chamber automatically into suitable operating mode, not only
User's use is more convenient, and can cause the slow problem that cools down for a long time to avoid refrigerator with a certain rotation speed operation, has
Effect improves the refrigeration effect and service life of refrigerator, while reducing energy consumption, to improve the market competitiveness of refrigerator.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the refrigerator operating parameter includes frequency-changeable compressor current operation frequency, frequency-changeable compressor according to current
The time of running frequency continuous operation, current temperature of refrigerating chamber and current freezer temperature.
Beneficial effect using above-mentioned further scheme is: further technical solution is current by acquisition frequency-changeable compressor for this
Running frequency and frequency-changeable compressor can measure the loading condition of refrigerator according to the time of current operation frequency continuous operation；Pass through
The practical refrigeration effect of refrigerator can be measured by acquiring the parameters such as current temperature of refrigerating chamber and current freezer temperature, to realize root
According to the load of refrigerator and the operational taps of practical refrigeration effect adjust automatically frequency-changeable compressor, make cold compartment of refrigerator, freezing chamber etc.
Automatically into suitable operating mode.
Further, in step 1, frequency-changeable compressor raising frequency condition includes condition one, condition two or condition three,
Condition one are as follows: frequency-changeable compressor is with the preset first time t1 of low frequency continuous operation；Or frequency-changeable compressor with
The middle preset second time t2 of frequency continuous operation；
Condition two are as follows: current temperature of refrigerating chamber is higher than preset target refrigerated storage temperature, and current temperature of refrigerating chamber and target
The difference of refrigerated storage temperature reaches preset first difference DELTA T1；
Condition three are as follows: current freezer temperature is higher than preset target cryogenic temperature, and current freezer temperature and target
The difference of cryogenic temperature reaches preset second difference DELTA T2.
Further, the condition one, condition two and condition three are judged respectively, one condition of every satisfaction then controls
The current operation frequency of frequency-changeable compressor rises one grade；If being unsatisfactory for condition, controls frequency-changeable compressor and keep current operation frequency
Rate operation.
Beneficial effect using above-mentioned further scheme is: in the prior art, generally according to the continuous fortune of freezer compressor
The current refrigeration effect of row time or refrigerator individually judges whether the running frequency for needing to change compressor, this judgement side
Formula can only influence the factor of compressor operating frequency in view of some, therefore judging result is not accurate enough, the refrigeration effect of refrigerator
Fruit can not fully meet demand.And in this further technical solution, using three conditions to determine whether needing to frequency conversion pressure
The current operation frequency of contracting machine carries out raising frequency, for three above condition, it is only necessary to which frequency conversion can be compressed by meeting a condition
The current operation frequency of machine carries out raising frequency and carries out upshift superposition to the running frequency of frequency-changeable compressor if meeting multiple conditions.
It, can be to the refrigerator loading condition and practical refrigeration effect for influencing the judgement of frequency-changeable compressor raising frequency by the way that three above condition is arranged
Etc. factors carry out the evaluation of Comprehensive, then determine whether to increase the running frequency of refrigerator frequency-changeable compressor and raised
Degree, to more effectively improve the refrigeration effect of refrigerator.
Further, step 2 specifically: acquisition frequency-changeable compressor current operation frequency, and to frequency-changeable compressor according to current
The time of running frequency continuous operation carries out timing, when frequency-changeable compressor is out of service or the running frequency of frequency-changeable compressor hair
When raw change, reclocking；Refrigerator is acquired respectively every preset first acquisition time and preset second acquisition time simultaneously
Current temperature of refrigerating chamber and current freezer temperature.
Further, step 3 specifically:
S301 sets first time t1, the second time t2, target refrigerated storage temperature, target cryogenic temperature, the first difference DELTA T1
With the second difference DELTA T2；
S302 is low frequency when the current operation frequency of frequency-changeable compressor, and continuous operating time reaches first time t1
When, the current operation frequency for controlling frequency-changeable compressor rises one grade；Or when the current operation frequency of frequency-changeable compressor is intermediate frequency
Rate, and when continuous operating time reaches the second time t2, the current operation frequency for controlling frequency-changeable compressor rises one grade；Or work as
The current operation frequency of frequency-changeable compressor is high-frequency, then keeps frequency-changeable compressor according to high-frequency continuous operation；
S303 is every to acquire primary current temperature of refrigerating chamber, judges whether current temperature of refrigerating chamber is higher than target refrigerated storage temperature,
And whether the difference of current temperature of refrigerating chamber and target refrigerated storage temperature reaches preset first difference DELTA T1, if so, control becomes
The current operation frequency of frequency compressor continues to rise one grade；If it is not, then frequency-changeable compressor is kept to run according to current operation frequency；
S304 is every to acquire primary current freezer temperature, judges whether current freezer temperature is higher than target cryogenic temperature,
And whether the difference of current freezer temperature and target cryogenic temperature reaches preset second difference DELTA T2, if so, control becomes
The current operation frequency of frequency compressor continues to rise one grade；If it is not, then frequency-changeable compressor is kept to run according to current operation frequency；
The step S302, step S303 and step S304 is parallel and each self-loopa carries out.
Beneficial effect using above-mentioned further scheme is: in this further technical solution, adopting to refrigerator operating parameter
The deterministic process of collection process and three conditions has carried out specific restriction.For condition 1 using the deterministic process of S302, for condition
2 use the deterministic process of S303, and for condition 3, using the deterministic process of S304, three above deterministic process is while carrying out
Parallel procedure upshifts to the current operation frequency of frequency-changeable compressor as long as meeting either condition, meanwhile, with upshift
On the basis of running frequency afterwards, continue the judgement of above-mentioned condition, when meeting raising frequency condition, to the running frequency after upshift
It upshifts again, i.e., gear superposition is carried out to running frequency, until the frequency of compressor shutdown or compressor reaches highest frequency.When
After upshifing to the current operation frequency of frequency-changeable compressor, if the refrigeration effect of refrigerator has reached compressor start, according to
Environment temperature and user's refrigeration demand setting target refrigeration effect, then the frequency-changeable compressor be automatically stopped operation or according to
Conventional control mode is controlled.
Meanwhile the deterministic process of above-mentioned S302, S303 and S304, and three processes respectively constantly recycled, for example walk
Rapid S303 and S304, as soon as every current temperature of refrigerating chamber of acquisition and current freezer temperature, carry out a deterministic process.For
The time of step S302, the frequency continuous operation after increasing to frequency-changeable compressor carry out timing, until frequency-changeable compressor stops
When operation or revolving speed change, reclocking.The duration of frequency operation after compressor is to increase is greater than setting
When the time, the running frequency of the frequency-changeable compressor is increased again, circulation executes above-mentioned steps, until compressor shutdown or pressure
The frequency of contracting machine reaches highest frequency.
It, can be to the refrigerator loading condition and reality for influencing the judgement of frequency-changeable compressor raising frequency using this further technical solution
The factors such as refrigeration effect carry out the evaluation of more Comprehensive, then determine whether the running frequency for increasing frequency-changeable compressor, with
And raised degree, to more effectively improve the refrigeration effect of refrigerator.
Further, in the step S303 and S304, before rising one grade to current running frequency, first after judgement upshift
Running frequency whether be more than the highest frequency of frequency-changeable compressor, if being more than highest frequency, according to frequency-changeable compressor
Highest frequency operation；If being not above highest frequency, run according to the running frequency after upshift.
Beneficial effect using above-mentioned further scheme is: can guarantee refrigerator frequency conversion pressure in this further technical solution
When the revolving speed of contracting machine operation has reached highest frequency corresponding limit speed, the revolving speed of frequency-changeable compressor is no longer increased, to protect
Demonstrate,proved frequency-changeable compressor using safe, improve the service life of frequency-changeable compressor.
A kind of frequency-changeable compressor control system, including raising frequency condition setting module, operating parameter acquisition module and raising frequency mould
Block,
The raising frequency condition setting module is for setting frequency-changeable compressor raising frequency condition；
The operating parameter acquisition module is for acquiring refrigerator operating parameter；
The raising frequency judgment module is used to be judged whether according to refrigerator operating parameter and frequency-changeable compressor raising frequency condition to change
The current operation frequency of frequency compressor carries out raising frequency, and controls the frequency-changeable compressor according to judging result.
The beneficial effects of the present invention are: it is not necessarily to manual operation the present invention provides a kind of frequency-changeable compressor control system, it can
To measure the load of refrigerator according to the actual run time of frequency-changeable compressor in refrigerator frequency-changeable compressor operational process, thus
According to the load of refrigerator and the operational taps of practical refrigeration effect adjust automatically frequency-changeable compressor, keep refrigerating chamber, freezing chamber automatic
Into suitable operating mode, not only user's use is more convenient, but also can be to avoid refrigerator for a long time with a certain rotation speed operation
And cause the slow problem that cools down, the refrigeration effect and service life of refrigerator are effectively improved, while reducing energy consumption, to mention
The high market competitiveness of refrigerator.
Further, the operating parameter acquisition module includes:
First acquisition unit, for acquiring the current operation frequency of frequency-changeable compressor；
Timing unit for carrying out timing according to the time of current operation frequency continuous operation to frequency-changeable compressor, and is worked as
When frequency-changeable compressor is out of service or the running frequency of frequency-changeable compressor changes, reclocking；
Second acquisition unit, for the current temperature of refrigerating chamber every the first acquisition time acquisition refrigerator；
Third acquisition unit, for the current freezer temperature every the second acquisition time acquisition refrigerator.
Further, the raising frequency module includes:
Setup unit is for setting first time t1, the second time t2, target refrigerated storage temperature, target cryogenic temperature, first
Difference DELTA T1 and the second difference DELTA T2；
First judging unit, for whether judging frequency-changeable compressor with low frequency continuous operation, and continuous operating time reaches
To the first time t1；And whether frequency-changeable compressor is judged with middle frequency continuous operation, and continuous operating time reaches institute
State the second time t2；And judge whether to run with high-frequency；And according to judging result, generates control instruction and be sent to the control
Unit processed；
Second judgment unit acquires primary current temperature of refrigerating chamber for every, judges whether current temperature of refrigerating chamber is higher than
The target refrigerated storage temperature, and whether the difference of current temperature of refrigerating chamber and target refrigerated storage temperature reaches the first difference DELTA T1, and
According to judging result, generates control instruction and be sent to the 4th judging unit；
Third judging unit acquires primary current freezer temperature for every, judges whether current freezer temperature is higher than
Target cryogenic temperature, and whether the difference of current freezer temperature and target cryogenic temperature reaches the second difference DELTA T2, and according to
Judging result generates control instruction and is sent to the 4th judging unit；
4th judging unit, for receiving the control instruction of the second judgment unit and the transmission of third judging unit, when
When needing to upshift to current operation frequency according to control instruction, whether the running frequency after judging upshift has been more than frequency conversion pressure
The highest frequency of contracting machine, and according to judging result, it generates control instruction and is sent to described control unit；
Control unit is run for controlling frequency-changeable compressor according to the control instruction.
Further, the control instruction includes rise one grade for controlling the current operation frequency of frequency-changeable compressor the
One control instruction and the second control instruction that current operation frequency is kept for controlling frequency-changeable compressor.
A kind of refrigerator, including above-described frequency-changeable compressor control system.
The beneficial effects of the present invention are: it is not necessarily to manual operation the present invention provides a kind of refrigerator, it can be in refrigerator frequency conversion pressure
In contracting machine operational process, the load of refrigerator is measured according to the actual run time of frequency-changeable compressor, thus according to the load of refrigerator
With the operational taps of practical refrigeration effect adjust automatically frequency-changeable compressor, make refrigerating chamber, freezing chamber automatically into suitable work
Mode, not only user's use is more convenient, but also can cause cooling slow with a certain rotation speed operation for a long time to avoid refrigerator
The problem of, the refrigeration effect and service life of refrigerator are effectively improved, while reducing energy consumption, to improve the market of refrigerator
Competitiveness.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of frequency-changeable compressor control method of the present invention；
Fig. 2 is a kind of structural schematic diagram of frequency-changeable compressor control system of the present invention；
Fig. 3 is a kind of structural schematic diagram 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.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
Refrigerator of the invention includes at least refrigerating chamber, freezing chamber, setting in indoor at least one refrigerated storage temperature biography of refrigeration
The change for freezing at least one indoor cryogenic temperature sensor and controlling temperature of refrigerating chamber and freezer temperature is arranged in sensor
Frequency compressor.By the available current temperature of refrigerating chamber of the refrigerated storage temperature sensor, pass through the cryogenic temperature sensor
Available current freezer temperature.
In various embodiments, the refrigerated storage temperature sensor and cryogenic temperature sensing be can be set according to actual needs
The quantity of device.For example in the entire space of refrigerating chamber and freezing chamber, there may be temperature differences for different zones, such as will be awfully hot
Food when being put into refrigerating chamber, the temperature close to the region on food periphery could possibly be higher than the temperature in other regions refrigerating chamber Nei very
More, when refrigerator temperature sensor is arranged far from the position of the food, possible collected temperature of refrigerating chamber is lower, from
And it is unable to the temperature of actual response refrigerating chamber, influence the refrigeration effect of refrigerator.It therefore can be in the difference of refrigerating chamber and freezing chamber
Multiple refrigerated storage temperature sensors and cryogenic temperature sensor is arranged in region, in conjunction with all refrigerated storage temperature sensors and cryogenic temperature
The collected temperature value of sensor carries out comprehensive assessment to the actual temperature of refrigerating chamber and freezing chamber, obtains most reacting cold
Hide the numerical value of room and freezing chamber actual temperature.Such as using collected maximum temperature as refrigerating chamber Current Temperatures or freezing
Room Current Temperatures；Or main refrigerated storage temperature sensor and main freezing position is respectively set in the central location of refrigerating chamber and freezing chamber
Auxiliary refrigerated storage temperature sensor and auxiliary freezing position sensor is respectively set in other of refrigerating chamber and freezing chamber region in sensor,
Using the main refrigerated storage temperature sensor and the collected temperature of main freezing position sensor as benchmark temperature, pass through auxiliary refrigerated storage temperature
Sensor and the collected temperature of auxiliary freezing position sensor, are modified the fiducial temperature, work as to obtain refrigerating chamber
Preceding temperature or freezing chamber Current Temperatures.
In the prior art, when the starting of refrigerator frequency-changeable compressor, refrigerator start refrigeration, according to refrigeration stalls set by user
Benchmark gear is determined with current environmental temperature, and then the compressor of refrigerator will be run with determining benchmark gear, if in the runtime
Between, refrigeration stalls and current environmental temperature remain unchanged, then the revolving speed of compressor also remains unchanged.In general, it is opened in refrigerator
When beginning to be powered, it is considered as compressor unlatching；Or after compressor a period of time out of service, the temperature of refrigerator has been more than setting temperature
Corresponding temperature range is spent, refrigerator needs automatic control compressor to bring into operation, and can be considered that compressor is opened.
The present invention can change frequency conversion pressure according to the time of actual motion and refrigeration effect in refrigerator operational process automatically
The revolving speed of contracting machine.
As shown in Figure 1, for a kind of flow diagram of frequency-changeable compressor control method of the present invention, comprising the following steps:
Step 1, frequency-changeable compressor raising frequency condition is set；
Step 2, after frequency-changeable compressor starting, refrigerator operating parameter is acquired；
Step 3, according to refrigerator operating parameter and frequency-changeable compressor raising frequency condition, judge whether to the current of frequency-changeable compressor
Running frequency carries out raising frequency, and controls the frequency-changeable compressor according to judging result.
It is specifically illustrated by the following examples.
In the present embodiment, frequency-changeable compressor raising frequency condition includes following three:
Condition one: frequency-changeable compressor was with low frequency continuous operation at least 2 hours；Or frequency-changeable compressor is continuous with middle frequency
Operation at least 1 hour；
Condition two: current temperature of refrigerating chamber is at least 2 DEG C higher than preset target refrigerated storage temperature；
Condition three: current freezer temperature is at least 3 DEG C higher than preset target cryogenic temperature.
The frequency-changeable compressor frequency has multiple gears, and each gear corresponds to the different frequency of frequency-changeable compressor and turns
Speed divides low frequency, middle frequency and high-frequency according to the numbers of gear steps of frequency-changeable compressor.Such as in the present embodiment, compressor frequency
Rate has 6 gears, gear 1, the corresponding frequency 1 of gear 2, frequency 2 is set as low frequency, gear 3, gear 4, gear 5 are corresponding
Frequency 3, frequency 4 and frequency 5 be set as middle frequency, the corresponding frequency 6 of gear 6 is set as high-frequency.
When refrigerator is with low frequency continuous operation at least 2h, compressor frequency rises one grade, when refrigerator is continuous with middle frequency
When running at least 1h, compressor frequency rises one grade.When refrigerator is run with high-frequency, compressor does not change in the process of running
Revolving speed.
Meanwhile after freezer compressor operation, temperature of refrigerating chamber is acquired every 30min, if temperature of refrigerating chamber is refrigerated than target
When temperature is 2 DEG C high, compressor frequency rises one grade；Freezer temperature is acquired every 30min, if freezer temperature is freezed than target
When temperature is 3 DEG C high, compressor frequency rises one grade.
Three above deterministic process is the process that parallel and each self-loopa carries out, and decision logic figure is as shown in Figure 4.Every satisfaction
One condition, the then current operation frequency for controlling frequency-changeable compressor rise one grade, if being unsatisfactory for condition, control frequency-changeable compressor
Keep current operation frequency operation.Operation frequency before carrying out gear superposition to current operation frequency, after first judging gear superposition
Whether rate has been more than the highest frequency of frequency-changeable compressor, if being more than highest frequency, according to the highest frequency of frequency-changeable compressor
Operation；If being not above highest frequency, run according to the running frequency after gear superposition.It in this way, can be to shadow
The factors such as the refrigerator loading condition of sound frequency-changeable compressor raising frequency judgement and practical refrigeration effect carry out the evaluation of more Comprehensive,
Then the running frequency and raised degree of raising refrigerator frequency-changeable compressor are determined whether, to more effectively improve refrigerator
Refrigeration effect.Such as joined many awfully hot foods suddenly in refrigerating chamber, the temperature of refrigerating chamber will rise rapidly, it is possible to
Cause temperature of refrigerating chamber to be higher than refrigerating chamber preset temperature and reaches 2 degrees Celsius or more, it is therefore desirable to the gear of frequency-changeable compressor is increased,
Accelerate the temperature of reduction refrigerating chamber.Or it is put into many awfully hot foods, the temperature of freezing chamber suddenly in freezing chamber simultaneously
It will rise rapidly, it is possible to cause freezer temperature to be higher than 3 degrees Celsius of freezing chamber preset temperature or more, it is therefore desirable to increase frequency conversion
The gear of compressor accelerates the temperature for reducing freezing chamber, the gear of compressor can be improved two gears at this time, accelerate refrigerator
Cooling rate, improve the preservation effect of food.
As shown in Fig. 2, for a kind of structural schematic diagram of frequency-changeable compressor control system of the present invention, comprising:
Raising frequency condition setting module, for setting frequency-changeable compressor raising frequency condition；
Operating parameter acquisition module, for acquiring refrigerator operating parameter；
Raising frequency judgment module, for judging whether to frequency conversion according to refrigerator operating parameter and frequency-changeable compressor raising frequency condition
The current operation frequency of compressor carries out raising frequency, and controls the frequency-changeable compressor according to judging result.
In the present embodiment, the operating parameter acquisition module includes:
First acquisition unit, for acquiring the current operation frequency of frequency-changeable compressor；
Timing unit for carrying out timing according to the time of current operation frequency continuous operation to frequency-changeable compressor, and is worked as
When frequency-changeable compressor is out of service or the running frequency of frequency-changeable compressor changes, reclocking；
Second acquisition unit, for the current temperature of refrigerating chamber every the first acquisition time acquisition refrigerator；
Third acquisition unit, for the current freezer temperature every the second acquisition time acquisition refrigerator.
The raising frequency module includes:
Setup unit, for setting first time t1, the second time t2, target refrigerated storage temperature, target cryogenic temperature, first
Difference DELTA T1 and the second difference DELTA T2；
First judging unit, for whether judging frequency-changeable compressor with low frequency continuous operation, and continuous operating time reaches
To the first time t1；And whether frequency-changeable compressor is judged with middle frequency continuous operation, and continuous operating time reaches institute
State the second time t2；And judge whether to run with high-frequency；And according to judging result, generates control instruction and be sent to the control
Unit processed；
Second judgment unit acquires primary current temperature of refrigerating chamber for every, judges whether current temperature of refrigerating chamber is higher than
The target refrigerated storage temperature, and whether the difference of current temperature of refrigerating chamber and target refrigerated storage temperature reaches the first difference DELTA T1, and
According to judging result, generates control instruction and be sent to the 4th judging unit；
Third judging unit acquires primary current freezer temperature for every, judges whether current freezer temperature is higher than
Target cryogenic temperature, and whether the difference of current freezer temperature and target cryogenic temperature reaches the second difference DELTA T2, and according to
Judging result generates control instruction and is sent to the 4th judging unit；
4th judging unit, for the operation before carrying out gear superposition to current operation frequency, after judging gear superposition
Whether frequency has been more than that the highest frequency of frequency-changeable compressor generates control instruction and is sent to the control and according to judging result
Unit；
Described control unit is run for controlling frequency-changeable compressor according to the control instruction.
As shown in figure 3, for a kind of structural schematic diagram of refrigerator of the present invention, including above-described frequency-changeable compressor control system
System.
The present invention provides a kind of frequency-changeable compressor control method, control system and refrigerators, are not necessarily to manual operation, Ke Yi
In refrigerator frequency-changeable compressor operational process, the load of refrigerator is measured according to the actual run time of frequency-changeable compressor, thus according to
Refrigerator load and practical refrigeration effect adjust automatically frequency-changeable compressor operational taps, make refrigerating chamber, freezing chamber automatically into
Suitable operating mode, not only user's use is more convenient, but also can be drawn for a long time with a certain rotation speed operation to avoid refrigerator
The slow problem of cooling is played, the refrigeration effect and service life of refrigerator are effectively improved, while reducing energy consumption, to improve
The market competitiveness of refrigerator.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (11)
1. a kind of frequency-changeable compressor control method, which comprises the following steps:
Step 1, frequency-changeable compressor raising frequency condition is set；
Step 2, after frequency-changeable compressor starting, refrigerator operating parameter is acquired；
Step 3, according to refrigerator operating parameter and frequency-changeable compressor raising frequency condition, judge whether the current operation to frequency-changeable compressor
Frequency carries out raising frequency, and controls the frequency-changeable compressor according to judging result, and the refrigerator operating parameter includes frequency-changeable compressor
Current operation frequency, frequency-changeable compressor are according to the time of current operation frequency continuous operation, current temperature of refrigerating chamber and current cold
Freeze room temperature.
2. frequency-changeable compressor control method according to claim 1, which is characterized in that in step 1, frequency-changeable compressor raising frequency
Condition includes:
Condition one: frequency-changeable compressor is with low frequency continuous operation preset first time；Or frequency-changeable compressor is connected with middle frequency
Reforwarding row preset second time；
Condition two: current temperature of refrigerating chamber is higher than preset target refrigerated storage temperature, and current temperature of refrigerating chamber and target refrigeration temperature
The difference of degree reaches preset first difference；
Condition three: current freezer temperature is higher than preset target cryogenic temperature, and current freezer temperature and target freezing temperature
The difference of degree reaches preset second difference.
3. frequency-changeable compressor control method according to claim 2, which is characterized in that in step 3, respectively to the condition
One, condition two and condition three are judged, one condition of every satisfaction, then the current operation frequency for controlling frequency-changeable compressor rises one
Shelves；If being unsatisfactory for condition, controls frequency-changeable compressor and keep current operation frequency operation.
4. frequency-changeable compressor control method according to claim 3, which is characterized in that step 2 specifically:
Acquire frequency-changeable compressor current operation frequency, and to frequency-changeable compressor according to current operation frequency continuous operation time into
Row timing, when frequency-changeable compressor is out of service or the running frequency of frequency-changeable compressor changes, reclocking；It is every simultaneously
Every the current temperature of refrigerating chamber of preset first acquisition time acquisition refrigerator, every preset second acquisition time acquisition refrigerator
Current freezer temperature.
5. frequency-changeable compressor control method according to claim 4, which is characterized in that step 3 specifically:
S301 is low frequency when the current operation frequency of frequency-changeable compressor, and continuous operating time reaches preset first time
When, the current operation frequency for controlling frequency-changeable compressor rises one grade；Or when the current operation frequency of frequency-changeable compressor is intermediate frequency
Rate, and when continuous operating time reaches preset second time, the current operation frequency for controlling frequency-changeable compressor rises one grade；Or
Person is high-frequency when the current operation frequency of frequency-changeable compressor, then keeps frequency-changeable compressor according to high-frequency continuous operation；
S302 is every to acquire primary current temperature of refrigerating chamber, judges whether current temperature of refrigerating chamber is higher than preset target refrigeration temperature
Degree, and whether the difference of current temperature of refrigerating chamber and target refrigerated storage temperature reaches preset first difference, if so, control frequency conversion
The current operation frequency of compressor continues to rise one grade, if it is not, then frequency-changeable compressor is kept to run according to current operation frequency；
S303 is every to acquire primary current freezer temperature, judges whether current freezer temperature is higher than preset target freezing temperature
Degree, and whether the difference of current freezer temperature and target cryogenic temperature reaches preset second difference, if so, control frequency conversion
The current operation frequency of compressor continues to rise one grade, if it is not, then frequency-changeable compressor is kept to run according to current operation frequency；
The step S301, step S302 and step S303 is parallel and each self-loopa carries out.
6. frequency-changeable compressor control method according to claim 5, which is characterized in that in the step S302 and S303,
Before rising one grade to current running frequency, first judge the running frequency after upshifing whether be more than frequency-changeable compressor highest
Frequency is run if being more than highest frequency according to the highest frequency of frequency-changeable compressor；If being not above highest frequency, press
According to the running frequency operation after upshift.
7. a kind of frequency-changeable compressor control system, which is characterized in that including raising frequency condition setting module, operating parameter acquisition module
With raising frequency module,
The raising frequency condition setting module is for setting frequency-changeable compressor raising frequency condition；
The operating parameter acquisition module is for acquiring refrigerator operating parameter；
The raising frequency judgment module is used to be judged whether according to refrigerator operating parameter and frequency-changeable compressor raising frequency condition to frequency conversion pressure
The current operation frequency of contracting machine carries out raising frequency, and controls the frequency-changeable compressor, the refrigerator operating parameter according to judging result
Time, current refrigeration including frequency-changeable compressor current operation frequency, frequency-changeable compressor according to current operation frequency continuous operation
Room temperature and current freezer temperature.
8. frequency-changeable compressor control system according to claim 7, which is characterized in that the operating parameter acquisition module packet
It includes:
First acquisition unit, for acquiring the current operation frequency of frequency-changeable compressor；
Timing unit for carrying out timing according to the time of current operation frequency continuous operation to frequency-changeable compressor, and works as frequency conversion
When compressor is out of service or the running frequency of frequency-changeable compressor changes, reclocking；
Second acquisition unit, for the current temperature of refrigerating chamber every preset first acquisition time acquisition refrigerator；
Third acquisition unit, for the current freezer temperature every preset second acquisition time acquisition refrigerator.
9. frequency-changeable compressor control system according to claim 7, which is characterized in that the raising frequency module includes:
Setup unit, for setting first time, the second time, target refrigerated storage temperature, target cryogenic temperature, the first difference, the
Two differences, the first acquisition time and the second acquisition time；
First judging unit, for whether judging frequency-changeable compressor with low frequency continuous operation, and continuous operating time reaches institute
It states at the first time；And whether frequency-changeable compressor is judged with middle frequency continuous operation, and continuous operating time reaches described second
Time；And judge whether to run with high-frequency；And according to judging result, generates control instruction and be sent to control unit；
Second judgment unit acquires primary current temperature of refrigerating chamber for every, it is described to judge whether current temperature of refrigerating chamber is higher than
Target refrigerated storage temperature, and whether the difference of current temperature of refrigerating chamber and target refrigerated storage temperature reaches the first difference, and according to judgement
As a result, generating control instruction is sent to the 4th judging unit；
Third judging unit acquires primary current freezer temperature for every, judges whether current freezer temperature is higher than target
Cryogenic temperature, the and whether difference of current freezer temperature and target cryogenic temperature reaches the second difference, and according to judging result,
It generates control instruction and is sent to the 4th judging unit；
4th judging unit works as basis for receiving the control instruction of the second judgment unit and the transmission of third judging unit
When control instruction needs to upshift to current operation frequency, whether the running frequency after judging upshift has been more than frequency-changeable compressor
Highest frequency generate control instruction and be sent to control unit and according to judging result；
Control unit is run for controlling frequency-changeable compressor according to the control instruction.
10. frequency-changeable compressor control system according to claim 9, which is characterized in that the control instruction includes being used for
The current operation frequency of control frequency-changeable compressor rises one grade of the first control instruction and works as controlling frequency-changeable compressor holding
Second control instruction of preceding running frequency.
11. a kind of refrigerator, which is characterized in that including any frequency-changeable compressor control system of claim 7~10.
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| CN107388723B (en) * | 2017-09-18 | 2019-12-27 | 长虹美菱股份有限公司 | Operation control method of variable-frequency refrigerator or freezer |
| CN108626935B (en) * | 2018-05-18 | 2020-12-22 | 青岛海尔股份有限公司 | Refrigerator and compressor frequency control method thereof |
| EP3867579B1 (en) | 2018-10-16 | 2022-05-04 | Arçelik Anonim Sirketi | A control unit having improved compressor control algorithm |
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