CN107883623A - Defrosting control method, defrosting control device, refrigeration plant and readable storage medium storing program for executing - Google Patents
Defrosting control method, defrosting control device, refrigeration plant and readable storage medium storing program for executing Download PDFInfo
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- CN107883623A CN107883623A CN201710976706.5A CN201710976706A CN107883623A CN 107883623 A CN107883623 A CN 107883623A CN 201710976706 A CN201710976706 A CN 201710976706A CN 107883623 A CN107883623 A CN 107883623A
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- threshold value
- homes
- compressor
- accounting threshold
- default accounting
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Classifications
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
Abstract
The present invention proposes a kind of defrosting control method, defrosting control device, refrigeration plant and readable storage medium storing program for executing, wherein, defrosting control method includes：Detect the Homes Using TV of compressor；According to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding defrost starts the cycle, to start the cycle according to defrost, defrosting operation is performed to evaporator.Pass through technical scheme, compared with defrosting control scheme of the prior art, need not temperature sensor be set at evaporator to gather the temperature of evaporator, on the one hand, the setting of temperature sensor at evaporator can be cancelled, simplify device and set, corresponding simplify control process, the preparation efficiency of refrigeration plant is improved, on the other hand, is advantageous to the normalized control of refrigeration plant.
Description
Technical field
The present invention relates to household appliance technical field, is filled in particular to a kind of defrosting control method, a kind of defrosting control
Put, a kind of refrigeration plant and a kind of computer-readable recording medium.
Background technology
In correlation technique, for refrigeration plants such as wind cooling refrigerators, in order to perform defrosting operation to evaporator, all steaming substantially
Send out and environment temperature sensor is set at device, to be determined whether to perform defrost groove portion, and root actual temp according to the temperature of evaporator
Value selects the different defrost cycles, still suffers from following defect：
(1) control process is more complicated；
(2) the environment temperature sensor assembling at evaporator is complex, and production efficiency is relatively low and standardizes bad control
System.
The content of the invention
At least one in order to solve the above-mentioned technical problem, it is an object of the present invention to provide a kind of defrosting control side
Method.
It is another object of the present invention to provide a kind of defrosting control device.
It is yet a further object of the present invention to provide a kind of refrigeration plant.
It is yet a further object of the present invention to provide a kind of computer-readable recording medium.
To achieve these goals, the embodiment of first aspect present invention proposes a kind of defrosting control method, including：Inspection
The Homes Using TV of measured compressed machine；According to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding defrost starts the cycle, with
Cycle is started according to defrost, defrosting operation is performed to evaporator.
In the technical scheme, by default accounting threshold value, and detect compressor Homes Using TV and default accounting threshold value it
Between relation, according to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding defrost starts the cycle, and then to pass through
Corresponding defrost starts cycle execution defrosting operation, because the Homes Using TV of compressor is higher, shows that the frequency of use of evaporator is got over
The probability of frosting is also higher on height, namely evaporator, and starting the cycle by the defrost corresponding to starts defrosting operation, and existing
Defrosting control scheme in technology is compared, it is not necessary to temperature sensor is set at evaporator to gather the temperature of evaporator, one
Aspect, the setting of temperature sensor at evaporator can be cancelled, simplify device and set, corresponding simplify control process, improve system
The preparation efficiency of cool equipment, on the other hand, be advantageous to the normalized control of refrigeration plant.
Wherein, Homes Using TV refers to the run time of compressor and the ratio of working time, and the working time is opening for refrigeration plant
Open the time, Homes Using TV can determine, can also run when refrigeration plant is opened and run according to operational factor and real-time working condition
After a period of time, determined according to practical operation situation.
In addition, default accounting threshold value can be one or multiple, when with multiple default accounting threshold values,
Multiple default accounting threshold values are divided into multiple threshold spaces, and each threshold space corresponds to a defrost starter, so as to
So that after the threshold space belonging to Homes Using TV, it is determined that corresponding defrost starts the cycle, and the quantity of default accounting threshold value is more,
The accuracy of control is higher.
In addition, the defrosting control method in above-described embodiment provided by the invention can also have following supplementary technology special
Sign：
In the above-mentioned technical solutions, it is preferable that according to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding
Defrost starts the cycle, to start the cycle according to defrost, performs defrosting operation to evaporator, specifically includes following steps：Detection is opened
Relation between probability and the first default accounting threshold value, and the second default accounting threshold value；Detecting Homes Using TV less than first
During default accounting threshold value, according to the first defrost cycle, control and defrosting operation is performed to evaporator；Detect Homes Using TV be more than or
When accounting threshold value is preset equal to first, and being less than or equal to the second default accounting threshold value, according to the second defrost cycle, control to steaming
Send out device and perform defrosting operation；When detecting that Homes Using TV is more than the second default accounting threshold value, according to the 3rd defrost cycle, control pair
Evaporator performs defrosting operation, wherein, the first default accounting threshold value is less than the second default accounting threshold value.
In the technical scheme, default accounting threshold value is arranged to include the first default accounting threshold value and the second accounting threshold
Value, the first accounting threshold value and the second accounting threshold value will (0,100%] be divided into three threshold intervals, first threshold section be more than
0, and less than the first default accounting threshold value, Second Threshold section is more than or equal to the first default accounting threshold value, and is less than or equal to
Second default accounting threshold value, the 3rd threshold interval are that accounting threshold value is preset more than second, and less than or equal to 100%, by drawing
Divide multiple threshold intervals, it is determined that in the corresponding defrost cycle, realize long defrost cycle, middle defrost cycle and short defrost cycle respectively
Determination, so as to cancel evaporator environment temperature sensor while, meet refrigeration plant high temperature, medium temperature with it is low
Defrost demand at a temperature of the varying environment of temperature, control process is simple, and control reliability is high.
In any of the above-described technical scheme, it is preferable that the first default accounting threshold value is more than or equal to 30%, and is less than or waits
In 40%；Second default accounting threshold value is more than or equal to 60%, and less than or equal to 70%.
In the technical scheme, by the value model for limiting the first default accounting threshold value and the second default accounting threshold value respectively
Enclose, compared with being separately provided threshold value, range of choice is bigger, and then disclosure satisfy that the use demand of different types of refrigeration plant.
Preferably, the first default accounting threshold value is 35%, and the second default accounting threshold value is 65%.
In any of the above-described technical scheme, it is preferable that when compressor is invariable frequency compressor, detect the start of compressor
Rate, specifically include following steps：When electric on detecting refrigeration plant, the operational tapses of refrigeration plant are determined, and detect system
The refrigeration compartment temperature of cool equipment；According to operational tapses and refrigeration compartment temperature, the Homes Using TV of compressor is determined.
In the technical scheme, when compressor is invariable frequency compressor, the Homes Using TV of compressor by refrigeration plant setting
Operational tapses and cool room real time temperature determine, realize using the refrigeration plant of invariable frequency compressor defrost start week
Phase, set-up mode is simple, and reliability is high.
Specifically, operational tapses can directly correspond to the setting temperature in cool room, can also characterize the temperature in cool room
Control scope, such as 2 DEG C, 4 DEG C, 6 DEG C etc., or 1-7 gears, wherein 1 grade of characterization control temperature is at 8 DEG C or so, 7 grades of characterization control temperature
Degree is at 1 DEG C or so, and temperature value is lower corresponding to gear, and the refrigeration compartment temperature collected is higher, and Homes Using TV is higher, gear pair
The temperature value answered is higher, and Homes Using TV is lower.
Wherein, the timer time that defrost starts the cycle was the upper electric moment of refrigeration plant, such as, detecting that Homes Using TV is
When 30%, defrosting operation was performed according to the first defrost periodic Control evaporator, i.e., by the first defrost cycle from the upper electric moment
Afterwards, defrosting operation is started.
In any of the above-described technical scheme, it is preferable that when compressor is frequency-changeable compressor, detect the start of compressor
Rate, specifically include following steps：The unlatching timing from the moment is specified, and record from the specified moment after preset duration, compression
Multiple actual run times of the machine under multiple working frequencies；Determine correction factor corresponding to multiple working frequencies；According to amendment
Coefficient is modified respectively to multiple actual run times, to generate amendment run time；According to amendment run time with presetting
Duration, it is determined that average Homes Using TV, average Homes Using TV is defined as to the Homes Using TV of compressor, wherein, preset duration is less than defrost
Cycle.
In the technical scheme, when compressor is frequency-changeable compressor, because the running frequency of compressor is variable, therefore
Fixed in operational factor, Homes Using TV is definite value or underrange, by detecting compressor respectively not in specified preset duration
With the actual run time under working frequency, then modified index carries out time progress to actual according to corresponding to different frequencies
Amendment, obtain correcting run time, Homes Using TV is determined with preset duration by correcting run time, can be by frequency-changeable compressor
Course of work approximate transform determines Homes Using TV to determine the frequency course of work, and then meets and evaporated corresponding to frequency-changeable compressor
The defrost demand of device, while evaporator environment temperature sensor need not be set, in the reasonable selection defrost cycle, reduce steaming
The frosting probability of device is sent out, and then the refrigerating efficiency of refrigeration plant can be improved.
Specifically, the median in multiple working frequencies can be set to standard value, i.e. correction factor corresponding to median
For 1, it is more than 1 more than correction value corresponding to the working frequency of median, it is small less than correction value corresponding to the working frequency of median
In 1, compressor is then obtained under different operating frequency according to actual run time of the compressor under different operating frequency
Run time is corrected, because the relative operation time of different operating frequency and the ratio of actual run time are according to work frequency
Being incremented by for rate increases successively, therefore when compressor works in lower frequency, the ratio of relative operation time and actual run time
Value is smaller, and when compressor is in higher frequency operation, the ratio of relative operation time and actual run time is larger, i.e., corresponding same
The relative operation time of sample, for compressor when lower frequency works, actual run time is longer, and compressor is in higher frequency operation
When, actual run time is shorter.
Wherein, the timer time that defrost starts the cycle is to specify the moment.
In any of the above-described technical scheme, it is preferable that the first defrost cycle was 8 hours, and the second defrost cycle was 16 hours,
3rd defrost cycle was 24 hours.
The embodiment of second aspect of the present invention proposes a kind of defrosting control device, including：Detection unit, pressed for detecting
The Homes Using TV of contracting machine；Determining unit, for according to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding defrost is opened
In the dynamic cycle, to start the cycle according to defrost, defrosting operation is performed to evaporator.
In the technical scheme, by default accounting threshold value, and detect compressor Homes Using TV and default accounting threshold value it
Between relation, according to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding defrost starts the cycle, and then to pass through
Corresponding defrost starts cycle execution defrosting operation, because the Homes Using TV of compressor is higher, shows that the frequency of use of evaporator is got over
The probability of frosting is also higher on height, namely evaporator, and starting the cycle by the defrost corresponding to starts defrosting operation, and existing
Defrosting control scheme in technology is compared, it is not necessary to temperature sensor is set at evaporator to gather the temperature of evaporator, one
Aspect, the setting of temperature sensor at evaporator can be cancelled, simplify device and set, corresponding simplify control process, improve system
The preparation efficiency of cool equipment, on the other hand, be advantageous to the normalized control of refrigeration plant.
Wherein, Homes Using TV refers to the run time of compressor and the ratio of working time, and the working time is opening for refrigeration plant
Open the time, Homes Using TV can determine, can also run when refrigeration plant is opened and run according to operational factor and real-time working condition
After a period of time, determined according to practical operation situation.
In addition, default accounting threshold value can be one or multiple, when with multiple default accounting threshold values,
Multiple default accounting threshold values are divided into multiple threshold spaces, and each threshold space corresponds to a defrost starter, so as to
So that after the threshold space belonging to Homes Using TV, it is determined that corresponding defrost starts the cycle, and the quantity of default accounting threshold value is more,
The accuracy of control is higher.
In the above-mentioned technical solutions, it is preferable that detection unit is additionally operable to：Homes Using TV and the first default accounting threshold value are detected,
And the second relation between default accounting threshold value；Defrosting control device also includes：First control unit, for detecting out
When probability is less than the first default accounting threshold value, according to the first defrost cycle, controls and defrosting operation is performed to evaporator；Second control
Unit, for detecting Homes Using TV more than or equal to the first default accounting threshold value, and less than or equal to the second default accounting threshold
During value, according to the second defrost cycle, control and defrosting operation is performed to evaporator；3rd control unit, for detecting start
When rate is more than the second default accounting threshold value, control according to the 3rd defrost cycle, defrosting operation is performed to evaporator, wherein, first
Default accounting threshold value is less than the second default accounting threshold value.
In the technical scheme, default accounting threshold value is arranged to include the first default accounting threshold value and the second accounting threshold
Value, the first accounting threshold value and the second accounting threshold value will (0,100%] be divided into three threshold intervals, first threshold section be more than
0, and less than the first default accounting threshold value, Second Threshold section is more than or equal to the first default accounting threshold value, and is less than or equal to
Second default accounting threshold value, the 3rd threshold interval are that accounting threshold value is preset more than second, and less than or equal to 100%, by drawing
Divide multiple threshold intervals, it is determined that in the corresponding defrost cycle, realize long defrost cycle, middle defrost cycle and short defrost cycle respectively
Determination, so as to cancel evaporator environment temperature sensor while, meet refrigeration plant high temperature, medium temperature with it is low
Defrost demand at a temperature of the varying environment of temperature, control process is simple, and control reliability is high.
In any of the above-described technical scheme, it is preferable that the first default accounting threshold value is more than or equal to 30%, and is less than or waits
In 40%；Second default accounting threshold value is more than or equal to 60%, and less than or equal to 70%.
In the technical scheme, by the value model for limiting the first default accounting threshold value and the second default accounting threshold value respectively
Enclose, compared with being separately provided threshold value, range of choice is bigger, and then disclosure satisfy that the use demand of different types of refrigeration plant.
Preferably, the first default accounting threshold value is 35%, and the second default accounting threshold value is 65%.
In any of the above-described technical scheme, it is preferable that determining unit is additionally operable to：When electric on detecting refrigeration plant, really
The operational tapses of cool equipment are customized, and detect the refrigeration compartment temperature of refrigeration plant；Determining unit is additionally operable to：According to operational tapses
With refrigeration compartment temperature, the Homes Using TV of compressor is determined.
In the technical scheme, when compressor is invariable frequency compressor, the Homes Using TV of compressor by refrigeration plant setting
Operational tapses and cool room real time temperature determine, realize using the refrigeration plant of invariable frequency compressor defrost start week
Phase, set-up mode is simple, and reliability is high.
Specifically, operational tapses can directly correspond to the setting temperature in cool room, can also characterize the temperature in cool room
Control scope, such as 2 DEG C, 4 DEG C, 6 DEG C etc., or 1-7 gears, wherein 1 grade of characterization control temperature is at 8 DEG C or so, 7 grades of characterization control temperature
Degree is at 1 DEG C or so, and temperature value is lower corresponding to gear, and the refrigeration compartment temperature collected is higher, and Homes Using TV is higher, gear pair
The temperature value answered is higher, and Homes Using TV is lower.
Wherein, the timer time that defrost starts the cycle was the upper electric moment of refrigeration plant, such as, detecting that Homes Using TV is
When 30%, defrosting operation was performed according to the first defrost periodic Control evaporator, i.e., by the first defrost cycle from the upper electric moment
Afterwards, defrosting operation is started.
In any of the above-described technical scheme, it is preferable that also include：Recording unit, for specify the moment from unlatching timing,
And record from the specified moment after preset duration, multiple actual run times of the compressor under multiple working frequencies；It is determined that
Unit is additionally operable to：Determine correction factor corresponding to multiple working frequencies；Defrosting control device also includes：Amending unit, for root
Multiple actual run times are modified respectively according to correction factor, to generate amendment run time；Determining unit is additionally operable to：Root
According to amendment run time and preset duration, it is determined that average Homes Using TV, average Homes Using TV is defined as to the Homes Using TV of compressor, its
In, preset duration is less than the defrost cycle.
In the technical scheme, when compressor is frequency-changeable compressor, because the running frequency of compressor is variable, therefore
Fixed in operational factor, Homes Using TV is definite value or underrange, by detecting compressor respectively not in specified preset duration
With the actual run time under working frequency, then modified index carries out time progress to actual according to corresponding to different frequencies
Amendment, obtain correcting run time, Homes Using TV is determined with preset duration by correcting run time, can be by frequency-changeable compressor
Course of work approximate transform determines Homes Using TV to determine the frequency course of work, and then meets and evaporated corresponding to frequency-changeable compressor
The defrost demand of device, while evaporator environment temperature sensor need not be set, in the reasonable selection defrost cycle, reduce steaming
The frosting probability of device is sent out, and then the refrigerating efficiency of refrigeration plant can be improved.
Specifically, the median in multiple working frequencies can be set to standard value, i.e. correction factor corresponding to median
For 1, it is more than 1 more than correction value corresponding to the working frequency of median, it is small less than correction value corresponding to the working frequency of median
In 1, compressor is then obtained under different operating frequency according to actual run time of the compressor under different operating frequency
Run time is corrected, because the relative operation time of different operating frequency and the ratio of actual run time are according to work frequency
Being incremented by for rate increases successively, therefore when compressor works in lower frequency, the ratio of relative operation time and actual run time
Value is smaller, and when compressor is in higher frequency operation, the ratio of relative operation time and actual run time is larger, i.e., corresponding same
The relative operation time of sample, for compressor when lower frequency works, actual run time is longer, and compressor is in higher frequency operation
When, actual run time is shorter.
Wherein, the timer time that defrost starts the cycle is to specify the moment.
In any of the above-described technical scheme, it is preferable that the first defrost cycle was 8 hours, and the second defrost cycle was 16 hours,
3rd defrost cycle was 24 hours.
The technical scheme of third aspect present invention provides a kind of refrigeration plant, including processor, and processor is used to perform
Realized during the computer program stored in memory such as the defrosting control method of any one of the technical scheme of above-mentioned first aspect
The step of.
In the technical scheme, because refrigeration plant is used for the defrosting control method of above-mentioned any one technical scheme, because
And whole beneficial effects with above-mentioned defrosting control method, do not repeat one by one herein, in addition, refrigeration plant includes processor,
The step of processor is used to realize any one defrosting control method when performing the computer program stored in memory, pass through place
The processing of device is managed, refrigeration plant has higher automaticity.
Wherein, refrigeration plant is refrigerator or refrigerator-freezer.
The embodiment of the fourth aspect of the present invention proposes a kind of computer-readable recording medium, is stored thereon with computer
Program, realized when computer program is executed by processor such as the defrosting control side of any one of the technical scheme of above-mentioned first aspect
The step of method.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 shows the schematic flow diagram of defrosting control method according to an embodiment of the invention；
Fig. 2 shows the schematic flow diagram of defrosting control method according to another embodiment of the invention；
Fig. 3 shows the schematic block diagram of defrosting control device according to an embodiment of the invention；
Fig. 4 shows the schematic flow diagram of defrosting control method according to still a further embodiment；
Fig. 5 shows the schematic block diagram of refrigeration plant according to an embodiment of the invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
As shown in figure 1, defrosting control method according to an embodiment of the invention, including：Step 102, detection compression
The Homes Using TV of machine；Step 104, according to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding defrost starts the cycle,
To start the cycle according to defrost, defrosting operation is performed to evaporator.
In this embodiment, by default accounting threshold value, and detect between the Homes Using TV of compressor and default accounting threshold value
Relation, with according to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding defrost starts the cycle, and then by right
The defrost answered starts cycle execution defrosting operation, because the Homes Using TV of compressor is higher, shows that the frequency of use of evaporator is higher,
Namely on evaporator frosting probability it is also higher, by according to corresponding to defrost start the cycle start defrosting operation, with existing skill
Defrosting control scheme in art is compared, it is not necessary to temperature sensor is set at evaporator to gather the temperature of evaporator, a side
Face, the setting of temperature sensor at evaporator can be cancelled, simplify device and set, corresponding simplify control process, improve refrigeration
The preparation efficiency of equipment, on the other hand, be advantageous to the normalized control of refrigeration plant.
Wherein, Homes Using TV refers to the run time of compressor and the ratio of working time, and the working time is opening for refrigeration plant
Open the time, Homes Using TV can determine, can also run when refrigeration plant is opened and run according to operational factor and real-time working condition
After a period of time, determined according to practical operation situation.
In addition, default accounting threshold value can be one or multiple, when with multiple default accounting threshold values,
Multiple default accounting threshold values are divided into multiple threshold spaces, and each threshold space corresponds to a defrost starter, so as to
So that after the threshold space belonging to Homes Using TV, it is determined that corresponding defrost starts the cycle, and the quantity of default accounting threshold value is more,
The accuracy of control is higher.
In addition, the defrosting control method in above-described embodiment provided by the invention can also have following supplementary technology special
Sign：
In the above embodiment, it is preferable that according to the relation between Homes Using TV and default accounting threshold value, it is determined that correspondingization
Frost starts the cycle, to start the cycle according to defrost, performs defrosting operation to evaporator, specifically includes following steps：Detection start
Relation between rate and the first default accounting threshold value, and the second default accounting threshold value；Detecting that it is pre- that Homes Using TV is less than first
If during accounting threshold value, according to the first defrost cycle, control and defrosting operation is performed to evaporator；Detecting that Homes Using TV is more than or waits
When presetting accounting threshold value in first, and being less than or equal to the second default accounting threshold value, according to the second defrost cycle, control to evaporation
Device performs defrosting operation；When detecting that Homes Using TV is more than the second default accounting threshold value, according to the 3rd defrost cycle, control to steaming
Send out device and perform defrosting operation, wherein, the first default accounting threshold value is less than the second default accounting threshold value.
In this embodiment, default accounting threshold value is arranged to include the first default accounting threshold value and the second accounting threshold
Value, the first accounting threshold value and the second accounting threshold value will (0,100%] be divided into three threshold intervals, first threshold section be more than
0, and less than the first default accounting threshold value, Second Threshold section is more than or equal to the first default accounting threshold value, and is less than or equal to
Second default accounting threshold value, the 3rd threshold interval are that accounting threshold value is preset more than second, and less than or equal to 100%, by drawing
Divide multiple threshold intervals, it is determined that in the corresponding defrost cycle, realize long defrost cycle, middle defrost cycle and short defrost cycle respectively
Determination, so as to cancel evaporator environment temperature sensor while, meet refrigeration plant high temperature, medium temperature with it is low
Defrost demand at a temperature of the varying environment of temperature, control process is simple, and control reliability is high.
In any of the above-described embodiment, it is preferable that the first default accounting threshold value is more than or equal to 30%, and is less than or equal to
40%；Second default accounting threshold value is more than or equal to 60%, and less than or equal to 70%.
In this embodiment, by limiting the first default accounting threshold value and the second value model for presetting accounting threshold value respectively
Enclose, compared with being separately provided threshold value, range of choice is bigger, and then disclosure satisfy that the use demand of different types of refrigeration plant.
Preferably, the first default accounting threshold value is 35%, and the second default accounting threshold value is 65%.
In any of the above-described embodiment, it is preferable that when compressor is invariable frequency compressor, the Homes Using TV of compressor is detected,
Specifically include following steps：When electric on detecting refrigeration plant, the operational tapses of refrigeration plant are determined, and detect refrigeration and set
Standby refrigeration compartment temperature；According to operational tapses and refrigeration compartment temperature, the Homes Using TV of compressor is determined.
In this embodiment, when compressor is invariable frequency compressor, the Homes Using TV of compressor by refrigeration plant setting
The real time temperature of operational tapses and cool room determines, realizes and starts the cycle using the defrost of the refrigeration plant of invariable frequency compressor,
Set-up mode is simple, and reliability is high.
Specifically, operational tapses can directly correspond to the setting temperature in cool room, can also characterize the temperature in cool room
Control scope, such as 2 DEG C, 4 DEG C, 6 DEG C etc., or 1-7 gears, wherein 1 grade of characterization control temperature is at 8 DEG C or so, 7 grades of characterization control temperature
Degree is at 1 DEG C or so, and temperature value is lower corresponding to gear, and the refrigeration compartment temperature collected is higher, and Homes Using TV is higher, gear pair
The temperature value answered is higher, and Homes Using TV is lower.
Wherein, the timer time that defrost starts the cycle was the upper electric moment of refrigeration plant, such as, detecting that Homes Using TV is
When 30%, defrosting operation was performed according to the first defrost periodic Control evaporator, i.e., by the first defrost cycle from the upper electric moment
Afterwards, defrosting operation is started.
As shown in Fig. 2 in any of the above-described embodiment, it is preferable that when compressor is frequency-changeable compressor, detect compressor
Homes Using TV, specifically include following steps：Step 202, the unlatching timing from the moment is specified, and record from the moment is specified by pre-
If after duration, multiple actual run times of the compressor under multiple working frequencies；Step 204, multiple working frequencies pair are determined
The correction factor answered；Step 206, multiple actual run times are modified respectively according to correction factor, with generation amendment fortune
The row time；Step 208, according to amendment run time and preset duration, it is determined that average Homes Using TV, average Homes Using TV is defined as
The Homes Using TV of compressor, wherein, preset duration is less than the defrost cycle.
In this embodiment, when compressor is frequency-changeable compressor, because the running frequency of compressor is variable, therefore
Operational factor is fixed, and Homes Using TV is definite value or underrange, by detecting compressor respectively in difference in specified preset duration
Actual run time under working frequency, then modified index is repaiied to the actual progress time according to corresponding to different frequencies
Just, obtain correcting run time, Homes Using TV is determined with preset duration by correcting run time, can be by the work of frequency-changeable compressor
Make process approximate transform to determine the frequency course of work, and then determine Homes Using TV, and then meet evaporator corresponding to frequency-changeable compressor
Defrost demand, while evaporator environment temperature sensor need not be set, in the reasonable selection defrost cycle, reduce evaporation
The frosting probability of device, and then the refrigerating efficiency of refrigeration plant can be improved.
Specifically, the median in multiple working frequencies can be set to standard value, i.e. correction factor corresponding to median
For 1, it is more than 1 more than correction value corresponding to the working frequency of median, it is small less than correction value corresponding to the working frequency of median
In 1, compressor is then obtained under different operating frequency according to actual run time of the compressor under different operating frequency
Run time is corrected, because the relative operation time of different operating frequency and the ratio of actual run time are according to work frequency
Being incremented by for rate increases successively, therefore when compressor works in lower frequency, the ratio of relative operation time and actual run time
Value is smaller, and when compressor is in higher frequency operation, the ratio of relative operation time and actual run time is larger, i.e., corresponding same
The relative operation time of sample, for compressor when lower frequency works, actual run time is longer, and compressor is in higher frequency operation
When, actual run time is shorter.
Wherein, the timer time that defrost starts the cycle is to specify the moment.
In any of the above-described embodiment, it is preferable that the first defrost cycle was 8 hours, and the second defrost cycle was 16 hours, the
Three defrost cycles were 24 hours.
Fig. 3 shows the schematic block diagram of defrosting control device according to an embodiment of the invention.
As shown in figure 3, defrosting control device 300 according to an embodiment of the invention, including：Detection unit 302, for examining
The Homes Using TV of measured compressed machine；Determining unit 304, for according to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding
Defrost start the cycle, with according to defrost start the cycle, to evaporator perform defrosting operation.
In this embodiment, by default accounting threshold value, and detect between the Homes Using TV of compressor and default accounting threshold value
Relation, with according to the relation between Homes Using TV and default accounting threshold value, it is determined that corresponding defrost starts the cycle, and then by right
The defrost answered starts cycle execution defrosting operation, because the Homes Using TV of compressor is higher, shows that the frequency of use of evaporator is higher,
Namely on evaporator frosting probability it is also higher, by according to corresponding to defrost start the cycle start defrosting operation, with existing skill
Defrosting control scheme in art is compared, it is not necessary to temperature sensor is set at evaporator to gather the temperature of evaporator, a side
Face, the setting of temperature sensor at evaporator can be cancelled, simplify device and set, corresponding simplify control process, improve refrigeration
The preparation efficiency of equipment, on the other hand, be advantageous to the normalized control of refrigeration plant.
Wherein, Homes Using TV refers to the run time of compressor and the ratio of working time, and the working time is opening for refrigeration plant
Open the time, Homes Using TV can determine, can also run when refrigeration plant is opened and run according to operational factor and real-time working condition
After a period of time, determined according to practical operation situation.
In addition, default accounting threshold value can be one or multiple, when with multiple default accounting threshold values,
Multiple default accounting threshold values are divided into multiple threshold spaces, and each threshold space corresponds to a defrost starter, so as to
So that after the threshold space belonging to Homes Using TV, it is determined that corresponding defrost starts the cycle, and the quantity of default accounting threshold value is more,
The accuracy of control is higher.
In the above embodiment, it is preferable that detection unit 302 is additionally operable to：Homes Using TV and the first default accounting threshold value are detected,
And the second relation between default accounting threshold value；Defrosting control device 300 also includes：First control unit 306, for examining
When measuring Homes Using TV less than the first default accounting threshold value, according to the first defrost cycle, control and defrosting operation is performed to evaporator；The
Two control units 308, for detecting Homes Using TV more than or equal to the first default accounting threshold value, and it is pre- to be less than or equal to second
If during accounting threshold value, according to the second defrost cycle, control and defrosting operation is performed to evaporator；3rd control unit 310, for
When detecting that Homes Using TV is more than the second default accounting threshold value, control according to the 3rd defrost cycle, defrosting operation performed to evaporator,
Wherein, the first default accounting threshold value is less than the second default accounting threshold value.
In this embodiment, default accounting threshold value is arranged to include the first default accounting threshold value and the second accounting threshold
Value, the first accounting threshold value and the second accounting threshold value will (0,100%] be divided into three threshold intervals, first threshold section be more than
0, and less than the first default accounting threshold value, Second Threshold section is more than or equal to the first default accounting threshold value, and is less than or equal to
Second default accounting threshold value, the 3rd threshold interval are that accounting threshold value is preset more than second, and less than or equal to 100%, by drawing
Divide multiple threshold intervals, it is determined that in the corresponding defrost cycle, realize long defrost cycle, middle defrost cycle and short defrost cycle respectively
Determination, so as to cancel evaporator environment temperature sensor while, meet refrigeration plant high temperature, medium temperature with it is low
Defrost demand at a temperature of the varying environment of temperature, control process is simple, and control reliability is high.
In any of the above-described embodiment, it is preferable that the first default accounting threshold value is more than or equal to 30%, and is less than or equal to
40%；Second default accounting threshold value is more than or equal to 60%, and less than or equal to 70%.
In this embodiment, by limiting the first default accounting threshold value and the second value model for presetting accounting threshold value respectively
Enclose, compared with being separately provided threshold value, range of choice is bigger, and then disclosure satisfy that the use demand of different types of refrigeration plant.
Preferably, the first default accounting threshold value is 35%, and the second default accounting threshold value is 65%.
In any of the above-described embodiment, it is preferable that determining unit 304 is additionally operable to：When electric on detecting refrigeration plant, really
The operational tapses of cool equipment are customized, and detect the refrigeration compartment temperature of refrigeration plant；Determining unit 304 is additionally operable to：According to operation
Gear and refrigeration compartment temperature, determine the Homes Using TV of compressor.
In this embodiment, when compressor is invariable frequency compressor, the Homes Using TV of compressor by refrigeration plant setting
The real time temperature of operational tapses and cool room determines, realizes and starts the cycle using the defrost of the refrigeration plant of invariable frequency compressor,
Set-up mode is simple, and reliability is high.
Specifically, operational tapses can directly correspond to the setting temperature in cool room, can also characterize the temperature in cool room
Control scope, such as 2 DEG C, 4 DEG C, 6 DEG C etc., or 1-7 gears, wherein 1 grade of characterization control temperature is at 8 DEG C or so, 7 grades of characterization control temperature
Degree is at 1 DEG C or so, and temperature value is lower corresponding to gear, and the refrigeration compartment temperature collected is higher, and Homes Using TV is higher, gear pair
The temperature value answered is higher, and Homes Using TV is lower.
Wherein, the timer time that defrost starts the cycle was the upper electric moment of refrigeration plant, such as, detecting that Homes Using TV is
When 30%, defrosting operation was performed according to the first defrost periodic Control evaporator, i.e., by the first defrost cycle from the upper electric moment
Afterwards, defrosting operation is started.
In any of the above-described embodiment, it is preferable that also include：Recording unit 312, based on being opened from the moment is specified
When, and record from the specified moment after preset duration, multiple actual run times of the compressor under multiple working frequencies；Really
Order member 304 is additionally operable to：Determine correction factor corresponding to multiple working frequencies；Defrosting control device 300 also includes：Amending unit
314, for being modified respectively to multiple actual run times according to correction factor, to generate amendment run time；It is it is determined that single
Member 304 is additionally operable to：According to amendment run time and preset duration, it is determined that average Homes Using TV, average Homes Using TV is defined as pressing
The Homes Using TV of contracting machine, wherein, preset duration is less than the defrost cycle.
In this embodiment, when compressor is frequency-changeable compressor, because the running frequency of compressor is variable, therefore
Operational factor is fixed, and Homes Using TV is definite value or underrange, by detecting compressor respectively in difference in specified preset duration
Actual run time under working frequency, then modified index is repaiied to the actual progress time according to corresponding to different frequencies
Just, obtain correcting run time, Homes Using TV is determined with preset duration by correcting run time, can be by the work of frequency-changeable compressor
Make process approximate transform to determine the frequency course of work, and then determine Homes Using TV, and then meet evaporator corresponding to frequency-changeable compressor
Defrost demand, while evaporator environment temperature sensor need not be set, in the reasonable selection defrost cycle, reduce evaporation
The frosting probability of device, and then the refrigerating efficiency of refrigeration plant can be improved.
Specifically, the median in multiple working frequencies can be set to standard value, i.e. correction factor corresponding to median
For 1, it is more than 1 more than correction value corresponding to the working frequency of median, it is small less than correction value corresponding to the working frequency of median
In 1, compressor is then obtained under different operating frequency according to actual run time of the compressor under different operating frequency
Run time is corrected, because the relative operation time of different operating frequency and the ratio of actual run time are according to work frequency
Being incremented by for rate increases successively, therefore when compressor works in lower frequency, the ratio of relative operation time and actual run time
Value is smaller, and when compressor is in higher frequency operation, the ratio of relative operation time and actual run time is larger, i.e., corresponding same
The relative operation time of sample, for compressor when lower frequency works, actual run time is longer, and compressor is in higher frequency operation
When, actual run time is shorter.
Wherein, the timer time that defrost starts the cycle is to specify the moment.
In any of the above-described embodiment, it is preferable that the first defrost cycle was 8 hours, and the second defrost cycle was 16 hours, the
Three defrost cycles were 34 hours.
Fig. 4 shows the schematic flow diagram of defrosting control method according to still a further embodiment.
As described in Figure 4, when compressor is invariable frequency compressor, defrosting control side according to another embodiment of the invention
Method, including：Step 402, when electric on detecting refrigeration plant, the operational tapses of refrigeration plant are determined, and detect refrigeration and set
Standby refrigeration compartment temperature；Step 404, according to operational tapses and refrigeration compartment temperature, the Homes Using TV of compressor is determined；Step 406, examine
The relation surveyed between Homes Using TV and the first default accounting threshold value, and the second default accounting threshold value；Step 408, detecting out
When probability is less than the first default accounting threshold value, according to the first defrost cycle, controls and defrosting operation is performed to evaporator；Step 410,
When detecting Homes Using TV more than or equal to the first default accounting threshold value, and being less than or equal to the second default accounting threshold value, according to
In the second defrost cycle, control and defrosting operation is performed to evaporator；Step 412, detecting Homes Using TV more than the second default accounting
During threshold value, according to the 3rd defrost cycle, control and defrosting operation is performed to evaporator.
Wherein, the first defrost cycle was 8 hours, and the second defrost cycle was 16 hours, and the 3rd defrost cycle was 34 hours, the
One default accounting threshold value is 35%, and the second default accounting threshold value is 65%.
Fig. 5 shows the schematic block diagram of the refrigeration plant of the embodiment of the present disclosure.
As shown in figure 5, according to the refrigeration plant 50 of the embodiment of the embodiment of the present disclosure, including memory 502, processor
504 and it is stored in the computer program that can be run on the memory 502 and on the processor 404, wherein memory 502
It can be connected between processor 504 by bus, the processor 504 is used to perform the computer stored in memory 502
The step of defrosting control method described in example is performed as described above is realized during program.
Computer-readable recording medium according to still another embodiment of the invention, except with the whole in embodiment seven
Outside technical characteristic, for above-mentioned refrigeration plant, computer program (instruction) is stored thereon with, it is characterised in that：Computer journey
The step of sequence (instruction) realizes any one defrosting control method in above-described embodiment when being executed by processor.
In this embodiment, because computer-readable recording medium is used for above-mentioned refrigeration plant, thus there is above-mentioned system
Whole beneficial effects of cool equipment, are stored thereon with computer program (instruction), and computer program (instruction) is executed by processor
The step of Shi Shixian above-mentioned defrosting control methods, thus whole beneficial effects with above-mentioned defrosting control method.
Technical scheme is described in detail above in association with accompanying drawing, by technical scheme, by default
Accounting threshold value, and the relation between the Homes Using TV of compressor and default accounting threshold value is detected, with according to Homes Using TV and default accounting
Relation between threshold value, it is determined that corresponding defrost starts the cycle, and then cycle execution defrosting operation is started by corresponding defrost,
Because the Homes Using TV of compressor is higher, show that the frequency of use of evaporator is higher, namely on evaporator frosting probability it is also higher,
Cycle startup defrosting operation is started by the defrost corresponding to, compared with defrosting control scheme of the prior art, it is not necessary to
Temperature sensor is set to gather the temperature of evaporator at evaporator, on the one hand, temperature sensor at evaporator can be cancelled
Setting, simplify device and set, corresponding simplify control process, improve the preparation efficiency of refrigeration plant, on the other hand, be advantageous to
The normalized control of refrigeration plant.
In the present invention, term " first ", " second ", " the 3rd " are only used for the purpose described, and it is not intended that instruction
Or imply relative importance；Term " multiple " then refers to two or more, is limited unless otherwise clear and definite.Term " installation ",
The term such as " connected ", " connection ", " fixation " all should be interpreted broadly, for example, " connection " can be fixedly connected or can
Dismantling connection, or be integrally connected；" connected " can be joined directly together, and can also be indirectly connected by intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In description of the invention, it is to be understood that the instruction such as term " on ", " under ", "left", "right", "front", "rear"
Orientation or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplification is retouched
State, rather than instruction or imply signified device or unit there must be specific direction, with specific azimuth configuration and operation,
It is thus impossible to it is interpreted as limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the present invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
The preferred embodiments of the present invention are these are only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (14)
1. a kind of defrosting control method, suitable for refrigeration plant, the refrigeration plant is provided with compressor and is connected to described
The evaporator of compressor, it is characterised in that including：
Detect the Homes Using TV of the compressor；
According to the relation between the Homes Using TV and default accounting threshold value, it is determined that corresponding defrost starts the cycle, with according to
Defrost starts the cycle, and defrosting operation is performed to the evaporator.
2. defrosting control method according to claim 1, it is characterised in that described according to the Homes Using TV and default accounting
Relation between threshold value, it is determined that corresponding defrost starts the cycle, to start the cycle according to the defrost, the evaporator is performed
Defrosting operation, specifically include following steps：
Detect the relation between the Homes Using TV and the first default accounting threshold value, and the second default accounting threshold value；
When detecting that the Homes Using TV is less than the described first default accounting threshold value, according to the first defrost cycle, control to described
Evaporator performs defrosting operation；
The Homes Using TV is being detected more than or equal to the described first default accounting threshold value, and is being preset less than or equal to described second
During accounting threshold value, according to the second defrost cycle, control and defrosting operation is performed to the evaporator；
When detecting that the Homes Using TV is more than the described second default accounting threshold value, according to the 3rd defrost cycle, control to described
Evaporator performs defrosting operation,
Wherein, the described first default accounting threshold value is less than the described second default accounting threshold value.
3. defrosting control method according to claim 2, it is characterised in that
Described first default accounting threshold value is more than or equal to 30%, and less than or equal to 40%；
Described second default accounting threshold value is more than or equal to 60%, and less than or equal to 70%.
4. defrosting control method according to claim 2, it is characterised in that when the compressor is invariable frequency compressor,
The Homes Using TV of the detection compressor, specifically includes following steps：
When electric on detecting the refrigeration plant, the operational tapses of the refrigeration plant are determined, and detects the refrigeration and sets
Standby refrigeration compartment temperature；
According to the operational tapses and the refrigeration compartment temperature, the Homes Using TV of the compressor is determined.
5. defrosting control method according to claim 2, it is characterised in that when the compressor is frequency-changeable compressor,
The Homes Using TV of the detection compressor, specifically includes following steps：
The unlatching timing from the moment is specified, and record from the specified moment after preset duration, the compressor is multiple
Multiple actual run times under working frequency；
Determine correction factor corresponding to the multiple working frequency；
The multiple actual run time is modified respectively according to the correction factor, to generate amendment run time；
According to the amendment run time and the preset duration, it is determined that average Homes Using TV, the average Homes Using TV is determined
For the Homes Using TV of the compressor,
Wherein, the preset duration is less than the defrost cycle.
6. the defrosting control method according to any one of claim 2 to 5, it is characterised in that
The first defrost cycle is 8 hours, and the second defrost cycle is 16 hours, and the 3rd defrost cycle is 24 small
When.
7. a kind of defrosting control device, suitable for refrigeration plant, the refrigeration plant is provided with compressor and is connected to described
The evaporator of compressor, it is characterised in that including：
Detection unit, for detecting the Homes Using TV of the compressor；
Determining unit, for according to the relation between the Homes Using TV and default accounting threshold value, it is determined that corresponding defrost starts week
Phase, to start the cycle according to the defrost, defrosting operation is performed to the evaporator.
8. defrosting control device according to claim 7, it is characterised in that
The detection unit is additionally operable to：Detect the Homes Using TV and the first default accounting threshold value, and the second default accounting threshold value
Between relation；
The defrosting control device also includes：
First control unit, for when detecting that the Homes Using TV is less than the described first default accounting threshold value, changing according to first
In the white cycle, control and defrosting operation is performed to the evaporator；
Second control unit, for detecting the Homes Using TV more than or equal to the described first default accounting threshold value, and it is less than
Or during equal to the described second default accounting threshold value, according to the second defrost cycle, control and defrosting operation is performed to the evaporator；
3rd control unit, for when detecting that the Homes Using TV is more than the described second default accounting threshold value, controlling according to the
In three defrost cycles, defrosting operation is performed to the evaporator,
Wherein, the described first default accounting threshold value is less than the described second default accounting threshold value.
9. defrosting control device according to claim 8, it is characterised in that
Described first default accounting threshold value is more than or equal to 30%, and less than or equal to 40%；
Described second default accounting threshold value is more than or equal to 60%, and less than or equal to 70%.
10. defrosting control device according to claim 8, it is characterised in that
The determining unit is additionally operable to：When electric on detecting the refrigeration plant, the operational tapses of the refrigeration plant are determined,
And detect the refrigeration compartment temperature of the refrigeration plant；
The determining unit is additionally operable to：According to the operational tapses and the refrigeration compartment temperature, the start of the compressor is determined
Rate.
11. defrosting control device according to claim 8, it is characterised in that also include：
Recording unit, for the unlatching timing from the moment is specified, and record from the specified moment after preset duration, it is described
Multiple actual run times of the compressor under multiple working frequencies；
The determining unit is additionally operable to：Determine correction factor corresponding to the multiple working frequency；
The defrosting control device also includes：
Amending unit, for being modified respectively to the multiple actual run time according to the correction factor, repaiied with generation
Positive run time；
The determining unit is additionally operable to：According to the amendment run time and the preset duration, it is determined that averagely Homes Using TV, will
The average Homes Using TV is defined as the Homes Using TV of the compressor,
Wherein, the preset duration is less than the defrost cycle.
12. the defrosting control device according to any one of claim 8 to 11, it is characterised in that
The first defrost cycle is 8 hours, and the second defrost cycle is 16 hours, and the 3rd defrost cycle is 24 small
When.
13. a kind of refrigeration plant, it is characterised in that the refrigeration plant includes processor, and the processor is used to perform storage
Realized during the computer program stored in device as described in any one in claim 1-6 the step of defrosting control method.
14. a kind of computer-readable recording medium, it is stored thereon with computer program (instruction), it is characterised in that：The calculating
Realized when machine program (instruction) is executed by processor as described in any one in claim 1-6 the step of defrosting control method.
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