CN105509411B - A kind of controlling method for refrigerator system and refrigerator - Google Patents
A kind of controlling method for refrigerator system and refrigerator Download PDFInfo
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- CN105509411B CN105509411B CN201610074069.8A CN201610074069A CN105509411B CN 105509411 B CN105509411 B CN 105509411B CN 201610074069 A CN201610074069 A CN 201610074069A CN 105509411 B CN105509411 B CN 105509411B
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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
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
Abstract
The present invention relates to a kind of controlling method for refrigerator system and refrigerator.Methods described includes：Collection environment temperature and the degree of superheat of evaporator in real time；The air quantity gear and/or electric expansion valve operation valve opening umber of pulse of variable rotating speed fan are determined according to environment temperature and the degree of superheat；Variable rotating speed fan adjusts air output according to the air quantity gear of determination, and electric expansion valve realizes refrigerant flow control according to operation valve opening umber of pulse adjustment self-operating aperture, electric expansion valve combination capillary.The present invention reaches refrigerating capacity, the purpose that air output matches with thermic load, realizes that refrigerator stability and high efficiency operates under various operating modes by gathering environment temperature and evaporator superheat Collaborative Control electronic expansion valve opening and rotation speed of fan；Electric expansion valve is implemented in combination with system refrigerant Flow-rate adjustment with capillary simultaneously, and realization efficiently tackles various loads, avoids the occurrence of the problems such as Temperature drop in refrigerator speed is slow under high load working condition.
Description
Technical field
The present invention relates to electrical equipment control field, more particularly to a kind of controlling method for refrigerator system and refrigerator.
Background technology
At present, refrigerator industry develops towards directions such as big volume, intellectualities, and most of refrigerators are still using most original
Capillary is as throttling arrangement.Capillary as the refrigerating capacitys such as refrigerator, domestic air conditioner in below 10kW refrigeration system often
Decompression throttle part, it has the advantages that simple in construction, cost is cheap, and refrigerant hardly possible leaks, but is adjusted during its variable working condition
Ability is weak, and small regulation can only be done to cooling system agent flux.When system loading changes greatly, particularly existing big volume ice
Case, when its internal reservoir quantity of food is from without to completely, its thermic load changes greatly, and refrigerator refrigeration system effectively can not ring in time
Answer, and then refrigerator long period temperature may be produced can not to reach setting value.The particularly appearance of intelligent refrigerator, to refrigerator system
The controllability and functional diversity of system propose higher requirement, and traditional capillary is not well positioned to meet requirement.
Conventional refrigerator uses capillary, and as restricting element, system refrigerant changes in flow rate is smaller, and support the use is determined more
Rotating speed blower fan.When load variations or function setting change, system response time is slow, and refrigerating capacity regulating power is poor,
Operational efficiency is relatively low.
The content of the invention
The technical problems to be solved by the invention are in view of the shortcomings of the prior art, there is provided a kind of controlling method for refrigerator system
And refrigerator.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of controlling method for refrigerator, including：
S1, environment temperature and the degree of superheat of evaporator are gathered in real time；
S2, calculated according to the real-time degree of superheat T of collection and the standard degree of superheat △ T to prestore and judge parameter alpha, be designated as α=T-
△ T, wherein, standard degree of superheat △ T obtain in refrigerant circulation circuit stable operation；
S3, the air quantity shelves of variable rotating speed fan are determined according to the span and corresponding current environmental temperature that judge parameter alpha
Position and/or electric expansion valve operation valve opening umber of pulse；
S4, variable rotating speed fan adjust air output according to the air quantity gear of determination, and electric expansion valve is according to operation valve opening pulse
Number adjustment self-operating aperture, electric expansion valve combination capillary realize refrigerant flow control.
For achieving the above object, present invention also offers a kind of refrigerator control system, including：Environment temperature senses
Device, for gathering environment temperature in real time, and the environment temperature of collection is sent to controller；Degree of superheat detection module, for reality
When gather the degree of superheat of evaporator, and the degree of superheat of collection is sent to controller；The controller, for the reality according to collection
When the degree of superheat T and standard degree of superheat △ T that prestore calculate and judge parameter alpha；According to the span that judges parameter alpha and corresponding work as
Preceding environment temperature determines the air quantity gear and/or electric expansion valve operation valve opening umber of pulse of variable rotating speed fan；Wherein, α=T- △
T, standard degree of superheat △ T obtain in refrigerant circulation circuit stable operation；Variable rotating speed fan, for the air quantity according to determination
Gear adjusts air output；Electric expansion valve, for according to operation valve opening umber of pulse adjustment self-operating aperture.Capillary, it is used for
Coordinate with electric expansion valve and realize refrigerant flow control.
For achieving the above object, present invention also offers a kind of refrigerator, including the refrigerator described in above-mentioned technical proposal
Control system.
The beneficial effects of the invention are as follows：The environment temperature and the degree of superheat that the present invention is gathered by environment temperature sensor gather
The evaporator superheat Collaborative Control electronic expansion valve opening and rotation speed of fan of module collection, reach refrigerating capacity, air output and heat
The purpose of load matching, realize that refrigerator stability and high efficiency operates under various operating modes；Electric expansion valve is implemented in combination with capillary simultaneously
Various loads are efficiently tackled in system refrigerant Flow-rate adjustment, realization, and it is slow etc. to avoid the occurrence of under high load working condition Temperature drop in refrigerator speed
Problem.
Brief description of the drawings
Fig. 1 is refrigerant circulation circuit schematic diagram described in the embodiment of the present invention 1；
Fig. 2 is refrigerator control system electrical block diagram described in the embodiment of the present invention 1；
Fig. 3 is electronic expansion valve structure schematic diagram；
Fig. 4 is refrigerator schematic diagram described in the embodiment of the present invention 2；
Fig. 5 is controlling method for refrigerator flow chart described in the embodiment of the present invention 3.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment 1, as shown in Figure 1, 2, a kind of refrigerator control system, including：Environment temperature sensor, for gathering in real time
Environment temperature, and the environment temperature of collection is sent to controller；Degree of superheat detection module, for gathering the mistake of evaporator in real time
Temperature, and the degree of superheat of collection is sent to controller；The controller, for according to the real-time degree of superheat T of collection with prestoring
Standard degree of superheat △ T calculate judge parameter alpha；Determined according to the span for judging parameter alpha and corresponding current environmental temperature
Air quantity gear and/or electric expansion valve the operation valve opening umber of pulse of variable rotating speed fan；Wherein, α=T- △ T, real-time degree of superheat T=
T2-T1, T2Evaporator outlet temperature, T1For evaporator temperature, standard degree of superheat △ T are in the stable fortune of refrigerant circulation circuit
Obtained during row；Variable rotating speed fan, for adjusting air output according to the air quantity gear of determination；Electric expansion valve, for according to fortune
Row valve opening umber of pulse adjusts self-operating aperture；Capillary, refrigerant flow control is realized for coordinating with electric expansion valve.This
Environment temperature sensor described in embodiment is arranged on outside casing；The degree of superheat is detected as being arranged in evaporator and gone out
The temperature sensor of mouth position.Valve body aperture is primarily referred to as the valve opening umber of pulse of electric expansion valve, electronic expansion under a certain operating mode
The valve opening umber of pulse of valve is default valve opening umber of pulse and valve opening pulse shape modification value sum.
The evaporator mistake that the environment temperature and degree of superheat acquisition module that the present invention is gathered by environment temperature sensor gather
Temperature Collaborative Control electronic expansion valve opening and rotation speed of fan, reach refrigerating capacity, the purpose that air output matches with thermic load, realize
Refrigerator stability and high efficiency operates under various operating modes；Electric expansion valve is implemented in combination with system refrigerant Flow-rate adjustment with capillary simultaneously,
Various loads are efficiently tackled in realization, avoid the occurrence of the problems such as Temperature drop in refrigerator speed is slow under high load working condition.
Default valve opening umber of pulse is related to environment temperature, and the controller is according to current environment temperature by electric expansion valve
Valve opening umber of pulse be set as corresponding to default valve opening umber of pulse；According to the span that judges parameter alpha and corresponding work as front ring
Border temperature determines valve opening pulse shape modification value, using default valve opening umber of pulse and valve opening pulse shape modification value sum as operation valve opening pulse
Number, wherein, valve opening umber of pulse is preset to be multiple, and different temperature ranges corresponds to different default valve opening umber of pulses.Different temperatures
The different default valve opening umber of pulse of range set, make electric expansion valve aperture can according to variation of ambient temperature real-time change,
Pressure drop and electric expansion valve itself reducing pressure by regulating flow performance are entered to electronic expansion valve opening according to needed for system at a temperature of varying environment
Row regulation, the enhancing of system adaptability.
Valve opening umber of pulse is preset described in the present embodiment and is set to three, is designated as A, B and C respectively, the A corresponds to environment temperature
Less than or equal to 20 DEG C, B corresponds to environment temperature and is more than 20 DEG C and less than or equal to 30 DEG C, and C corresponds to environment temperature more than 30 DEG C.Its
In, 90≤A≤120,180≤B≤210,260≤C≤300.Classifying rationally temperature range of the present invention, by temperature range with 20 DEG C
It is that separation is divided into three temperature ranges, the corresponding default valve opening umber of pulse of each temperature range with 30 DEG C.
A values are that 120, B values are that 180, C values are 300 in the present embodiment.
Span and corresponding current environmental temperature according to parameter alpha is judged determine valve opening pulse shape modification value, described to open
Valve pulse shape modification value determines according to following table：
| Circumstance temperature≤20 | 20 ＜ circumstance temperature≤30 | 30 ＜ circumstance temperatures | |
| α≤0 | 0 | 0 | 0 |
| 0 ＜ α≤1 | a | b | c |
| 1 ＜ α≤2 | 2a | 2b | 2c |
| 2 ＜ α≤3 | 3a | 3b | 3c |
| 3 ＜ α≤4 | 4a | 4b | 4c |
| 4 ＜ α≤5 | 5a | 5b | 5c |
| 5 ＜ α | 6a | 6b | 6c |
Wherein, 0 DEG C≤△ T≤2 DEG C, ia, ib and ic be relevant temperature under valve opening umber of pulse correction value, 5≤a≤7,8
≤ b≤10,13≤c≤15, i=0,1,2,3,4,5,6.
The present invention defines one according to the real-time degree of superheat and the standard degree of superheat of evaporator and judges parameter, is joined according to judgement
Several sizes determines valve opening pulse shape modification value, realizes and the degree of superheat is accurately handled, and system dynamic response is quick, evaporation
Device overheats, and electric expansion valve can is adjusted according to its size, and can be big according to the degree of superheat during regulation
Small change is constantly corrected, and improves the responding ability that system changes to thermic load in case.
The air quantity gear of electric expansion valve operation valve opening umber of pulse and variable rotating speed fan is determined according to following table：
| Circumstance temperature≤20 | 20 ＜ circumstance temperature≤30 | 30 ＜ circumstance temperatures | |
| α≤0 | A+0 is low-grade | B+0 is low-grade | C+0 middle-grades |
| 0 ＜ α≤1 | A+a+ is low-grade | B+b+ is low-grade | C+c+ middle-grades |
| 1 ＜ α≤2 | A+2a+ is low-grade | B+2b+ is low-grade | C+2c+ middle-grades |
| 2 ＜ α≤3 | A+3a+ is low-grade | B+3b+ middle-grades | C+3c+ is high-grade |
| 3 ＜ α≤4 | A+4a+ is low-grade | B+4b+ middle-grades | C+4c+ is high-grade |
| 4 ＜ α≤5 | A+5a+ middle-grades | B+5b+ is high-grade | C+5c+ is high-grade |
| 5 ＜ α | A+6a+ middle-grades | B+6b+ is high-grade | C+6c+ is high-grade |
Wherein, 0 DEG C≤△ T≤2 DEG C, A, B, C are the default valve opening umber of pulse under relevant temperature, and ia, ib and ic are corresponding
At a temperature of valve opening umber of pulse correction value, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6；Air quantity gear
Including high-grade, middle-grade and low-grade three gears.△ T values are 1 DEG C in the present embodiment, and a values are that 5, b values are that 9, c values are
15。
The present invention defines one according to the real-time degree of superheat and the standard degree of superheat of evaporator and judges parameter, is joined according to judgement
Several and corresponding environment temperature determines the gear of variable rotating speed fan, realizes and blower fan gear is accurately handled, system dynamic
Response is quick, and evaporator overheats, and variable rotating speed fan can is adjusted according to its size, and can be with during regulation
Constantly shift is carried out according to degree of superheat size variation, improves the responding ability that system changes to thermic load in case.
The evaporator mistake that the environment temperature and degree of superheat acquisition module that the present invention is gathered by environment temperature sensor gather
Temperature Collaborative Control electronic expansion valve opening and rotation speed of fan, reach refrigerating capacity, the purpose that air output matches with thermic load, realize
Refrigerator stability and high efficiency operates under various operating modes.Connected using electric expansion valve with capillary as the throttling arrangement of system, its is specific
Structure is introduced into capillary afterwards as shown in figure 1, refrigerant flows out from condenser, passes through electric expansion valve afterwards, finally flows
Enter evaporator.Select capillary to be connected with electric expansion valve, the requirement of regulation flow can be reached, can also realize that evaporating temperature exists
In suitable scope.Wherein electronic expansion valve regulation flow principle：Electronic controller is controlled by sending pulse signal to coil
The rotation (such as Fig. 3) of rotor part processed, it is needle edge by the convert rotational motion of rotor part by the transmission of screw mandrel and nut
Axially rectilinear movement, so as to adjust the flow area of valve port, adjusts the flow of refrigerant, while stop dog part passes through on slip ring
Lower motion control valve needle movements stroke, so as to ensure that valve moves in defined pulse all the time.The pulse from 0 to 350 when valve pulse
During change, flow system flow changes to M from 0, and the two is non-linear variation.
The present invention is accurately handled the degree of superheat, and the degree of superheat is primarily referred to as the temperature difference of evaporator inlet-outlet, different mistakes
Temperature represents the size of evaporator heat exchange area utilization, and system heat load is bigger, and evaporator superheat is bigger, and evaporator utilizes
Rate is smaller, and now the aperture of regulation is also bigger needed for electric expansion valve：Secondly, it is different according to electric expansion valve own characteristic
Under environment temperature, even the degree of superheat is identical, but electronic expansion valve opening adjusting size is different, and this is primarily due to environment temperature
Difference, system high and low pressure side pressure (pressure difference i.e. between condenser and evaporator) is different, and electric expansion valve needed for system produces
Pressure drop also differ, this is resulted in the case of degree of superheat identical, and the regulation of environment temperature difference electronic expansion valve opening is big
It is small also different.The benefit that this control mode is brought：System dynamic response is quick first, and evaporator overheats, electronic expansion
Valve can is adjusted according to its size, and can be corrected in real time according to degree of superheat size variation during regulation,
The responding ability that raising system changes to thermic load in case；Secondly, at a temperature of changing environment, system adaptability enhancing, according to not
With pressure drop and electric expansion valve needed for system under environment temperature, electronic expansion valve opening is adjusted itself reducing pressure by regulating flow performance,
So that refrigerator operation is more efficient, it is more energy efficient.
Embodiment 2, as shown in figure 4, a kind of refrigerator, including the refrigerator control system described in embodiment 1.
Embodiment 3, as shown in figure 5, a kind of controlling method for refrigerator, including：
S1, environment temperature and the degree of superheat of evaporator are gathered in real time；
S2, calculated according to the real-time degree of superheat T of collection and the standard degree of superheat △ T to prestore and judge parameter alpha, be designated as α=T-
△ T, wherein, standard degree of superheat △ T obtain in refrigerant circulation circuit stable operation；
S3, the air quantity shelves of variable rotating speed fan are determined according to the span and corresponding current environmental temperature that judge parameter alpha
Position and/or electric expansion valve operation valve opening umber of pulse；
S4, variable rotating speed fan adjust air output according to the air quantity gear of determination, and electric expansion valve is according to operation valve opening pulse
Number adjustment self-operating aperture, electric expansion valve combination capillary realize refrigerant flow control.
Specifically, being implemented as electric expansion valve operation valve opening umber of pulse is determined in S3：According to current environment temperature
The valve opening umber of pulse of electric expansion valve is set as corresponding default valve opening umber of pulse by degree；According to the span for judging parameter alpha
Valve opening pulse shape modification value is determined with corresponding current environmental temperature, default valve opening umber of pulse and valve opening pulse shape modification value sum are made
To run valve opening umber of pulse, wherein, valve opening umber of pulse is preset to be multiple, and different temperature ranges corresponds to different default valve opening arteries and veins
Rush number.
The default valve opening umber of pulse is set to three, is designated as A, B and C respectively, and the A corresponds to environment temperature less than or equal to 20
DEG C, B corresponds to environment temperature and is more than 20 DEG C and less than or equal to 30 DEG C, and C corresponds to environment temperature more than 30 DEG C, wherein, 90≤A≤
120,180≤B≤210,260≤C≤300.A values are that 120, B values are that 180, C values are 300 in the present embodiment.
Span and corresponding current environmental temperature according to parameter alpha is judged determine valve opening pulse shape modification value, described to open
Valve pulse shape modification value determines according to following table：
| Circumstance temperature≤20 | 20 ＜ circumstance temperature≤30 | 30 ＜ circumstance temperatures | |
| α≤0 | 0 | 0 | 0 |
| 0 ＜ α≤1 | a | b | c |
| 1 ＜ α≤2 | 2a | 2b | 2c |
| 2 ＜ α≤3 | 3a | 3b | 3c |
| 3 ＜ α≤4 | 4a | 4b | 4c |
| 4 ＜ α≤5 | 5a | 5b | 5c |
| 5 ＜ α | 6a | 6b | 6c |
Wherein, 0 DEG C≤△ T≤2 DEG C, ia, ib and ic be relevant temperature under valve opening umber of pulse correction value, 5≤a≤7,8
≤ b≤10,13≤c≤15, i=0,1,2,3,4,5,6.
The air quantity gear of electric expansion valve operation valve opening umber of pulse and variable rotating speed fan is determined in S3 according to following table：
Wherein, 0 DEG C≤△ T≤2 DEG C, A, B, C are the default valve opening umber of pulse under relevant temperature, and ia, ib and ic are corresponding
At a temperature of valve opening umber of pulse correction value, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6；Air quantity gear
Including high-grade, middle-grade and low-grade three gears.△ T values are 1 DEG C in the present embodiment, and a values are that 5, b values are that 9, c values are
15。
The evaporator mistake that the environment temperature and degree of superheat acquisition module that the present invention is gathered by environment temperature sensor gather
Temperature Collaborative Control electronic expansion valve opening and rotation speed of fan, reach refrigerating capacity, the purpose that air output matches with thermic load, realize
Refrigerator stability and high efficiency operates under various operating modes.
The present invention proposes the control method of refrigerant flow.During refrigerator stable operation, first set according to environment temperature
Determine the aperture of valve body, valve body aperture is adjusted by the evaporator inlet-outlet temperature difference afterwards.First, the adaptation of refrigerator is improved
Property, refrigerator is well adapted to high load capacity operating mode.Secondly accelerate refrigerator to the response speed of thermic load, enable refrigerator quick response
User stores food increase, reduces influence of the additional load to refrigerator temperature, is finally reached the various demands that refrigerator meets user
And the purpose of Effec-tive Function.
The present invention is implemented in combination with system refrigerant Flow-rate adjustment by electric expansion valve and capillary, realizes that efficiently reply is each
Kind load, avoids the occurrence of the problems such as Temperature drop in refrigerator speed is slow under high load working condition.Electronic expansion valve opening is passed in and out by evaporator
Mouthful temperature difference and environment temperature co- controlling, thermic load in variation of ambient temperature and case is changed sensitive, can quickly make phase
The change answered, improve refrigerator adaptability.Particularly intelligent refrigerator today prevailing, user to refrigerator performance requirement more and more higher,
Refrigerator functions are more and more, and electric expansion valve is controlled according to the above method, tradition is efficiently solved with reference to capillary
The problem of refrigerator modulability difference.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (15)
- A kind of 1. controlling method for refrigerator, it is characterised in that including：S1, environment temperature and the degree of superheat of evaporator are gathered in real time；S2, calculated according to the real-time degree of superheat T of collection and the standard degree of superheat △ T to prestore and judge parameter alpha, be designated as α=T- △ T, Wherein, standard degree of superheat △ T obtain in refrigerant circulation circuit stable operation；S3, according to the span and corresponding current environmental temperature that judge parameter alpha determine variable rotating speed fan air quantity gear and/ Or electric expansion valve operation valve opening umber of pulse；S4, variable rotating speed fan adjust air output according to the air quantity gear of determination, and electric expansion valve is adjusted according to operation valve opening umber of pulse Whole self-operating aperture, electric expansion valve combination capillary realize refrigerant flow control.
- 2. a kind of controlling method for refrigerator according to claim 1, it is characterised in that electric expansion valve operation valve opening is determined in S3 Umber of pulse is implemented as：Valve opening umber of pulse is preset corresponding to the valve opening umber of pulse of electric expansion valve is set as according to current environment temperature；According to Judge that the span of parameter alpha and corresponding current environmental temperature determine valve opening pulse shape modification value, by default valve opening umber of pulse with Valve opening pulse shape modification value sum is used as operation valve opening umber of pulse, wherein, it is multiple, different temperature ranges to preset valve opening umber of pulse Corresponding different default valve opening umber of pulse.
- 3. a kind of controlling method for refrigerator according to claim 2, it is characterised in that the default valve opening umber of pulse is set to three It is individual, A, B and C are designated as respectively, and the A corresponds to environment temperature less than or equal to 20 DEG C, and B corresponds to environment temperature and is more than 20 DEG C and is less than Equal to 30 DEG C, C corresponds to environment temperature more than 30 DEG C, wherein, 90≤A≤120,180≤B≤210,260≤C≤300.
- 4. a kind of controlling method for refrigerator according to claim 3, it is characterised in that A values are that 120, B values are that 180, C takes It is worth for 300.
- A kind of 5. controlling method for refrigerator according to claim 2, it is characterised in that according to judge parameter alpha span and Corresponding current environmental temperature determines valve opening pulse shape modification value, and the valve opening pulse shape modification value determines according to following table：
Circumstance temperature≤20 20 ＜ circumstance temperature≤30 30 ＜ circumstance temperatures α≤0 0 0 0 0 ＜ α≤1 a b c 1 ＜ α≤2 2a 2b 2c 2 ＜ α≤3 3a 3b 3c 3 ＜ α≤4 4a 4b 4c 4 ＜ α≤5 5a 5b 5c 5 ＜ α 6a 6b 6c Wherein, 0 DEG C≤△ T≤2 DEG C, ia, ib and ic be relevant temperature under valve opening umber of pulse correction value, 5≤a≤7,8≤b≤ 10,13≤c≤15, i=0,1,2,3,4,5,6. - 6. according to a kind of any one of claim 1-5 controlling method for refrigerator, it is characterised in that determine electricity according to following table in S3 The air quantity gear of sub- expansion valve operation valve opening umber of pulse and variable rotating speed fan：
Circumstance temperature≤20 20 ＜ circumstance temperature≤30 30 ＜ circumstance temperatures α≤0 A+0 is low-grade B+0 is low-grade C+0 middle-grades 0 ＜ α≤1 A+a+ is low-grade B+b+ is low-grade C+c+ middle-grades 1 ＜ α≤2 A+2a+ is low-grade B+2b+ is low-grade C+2c+ middle-grades 2 ＜ α≤3 A+3a+ is low-grade B+3b+ middle-grades C+3c+ is high-grade 3 ＜ α≤4 A+4a+ is low-grade B+4b+ middle-grades C+4c+ is high-grade 4 ＜ α≤5 A+5a+ middle-grades B+5b+ is high-grade C+5c+ is high-grade 5 ＜ α A+6a+ middle-grades B+6b+ is high-grade C+6c+ is high-grade Wherein, 0 DEG C≤△ T≤2 DEG C, A, B, C are the default valve opening umber of pulse under relevant temperature, and ia, ib and ic are relevant temperature Lower valve opening umber of pulse correction value, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6；Air quantity gear includes height Shelves, middle-grade and low-grade three gears. - 7. a kind of controlling method for refrigerator according to claim 6, it is characterised in that △ T values are 1 DEG C, and a values are that 5, b takes It is 15 to be worth for 9, c values.
- A kind of 8. refrigerator control system, it is characterised in that including：Environment temperature sensor, for gathering environment temperature in real time, and the environment temperature of collection is sent to controller；Degree of superheat detection module, for gathering the degree of superheat of evaporator in real time, and the degree of superheat of collection is sent to controller；The controller, calculated for the real-time degree of superheat T according to collection and the standard degree of superheat △ T to prestore and judge parameter alpha；Root It is judged that the span of parameter alpha and corresponding current environmental temperature determine that the air quantity gear of variable rotating speed fan and/or electronics are swollen Swollen valve runs valve opening umber of pulse；Wherein, α=T- △ T, standard degree of superheat △ T obtain in refrigerant circulation circuit stable operation；Variable rotating speed fan, for adjusting air output according to the air quantity gear of determination；Electric expansion valve, for according to operation valve opening umber of pulse adjustment self-operating aperture；Capillary, refrigerant flow control is realized for coordinating with electric expansion valve.
- 9. a kind of refrigerator control system according to claim 8, it is characterised in that the controller is according to current environment temperature The valve opening umber of pulse of electric expansion valve is set as corresponding default valve opening umber of pulse by degree；According to the span for judging parameter alpha Valve opening pulse shape modification value is determined with corresponding current environmental temperature, default valve opening umber of pulse and valve opening pulse shape modification value sum are made To run valve opening umber of pulse, wherein, valve opening umber of pulse is preset to be multiple, and different temperature ranges corresponds to different default valve opening arteries and veins Rush number.
- 10. a kind of refrigerator control system according to claim 9, it is characterised in that the default valve opening umber of pulse is set to three It is individual, A, B and C are designated as respectively, and the A corresponds to environment temperature less than or equal to 20 DEG C, and B corresponds to environment temperature and is more than 20 DEG C and is less than Equal to 30 DEG C, C corresponds to environment temperature more than 30 DEG C, wherein, 90≤A≤120,180≤B≤210,260≤C≤300.
- 11. a kind of refrigerator control system according to claim 10, it is characterised in that A values are that 120, B values are 180, C Value is 300.
- A kind of 12. refrigerator control system according to claim 9, it is characterised in that according to judge parameter alpha span and Corresponding current environmental temperature determines valve opening pulse shape modification value, and the valve opening pulse shape modification value determines according to following table：
Circumstance temperature≤20 20 ＜ circumstance temperature≤30 30 ＜ circumstance temperatures α≤0 0 0 0 0 ＜ α≤1 a b c 1 ＜ α≤2 2a 2b 2c 2 ＜ α≤3 3a 3b 3c 3 ＜ α≤4 4a 4b 4c 4 ＜ α≤5 5a 5b 5c 5 ＜ α 6a 6b 6c Wherein, 0 DEG C≤△ T≤2 DEG C, ia, ib and ic be relevant temperature under valve opening umber of pulse correction value, 5≤a≤7,8≤b≤ 10,13≤c≤15, i=0,1,2,3,4,5,6. - 13. according to a kind of any one of claim 8-12 refrigerator control systems, it is characterised in that determine electronics according to following table Expansion valve runs the air quantity gear of valve opening umber of pulse and variable rotating speed fan：
Circumstance temperature≤20 20 ＜ circumstance temperature≤30 30 ＜ circumstance temperatures α≤0 A+0 is low-grade B+0 is low-grade C+0 middle-grades 0 ＜ α≤1 A+a+ is low-grade B+b+ is low-grade C+c+ middle-grades 1 ＜ α≤2 A+2a+ is low-grade B+2b+ is low-grade C+2c+ middle-grades 2 ＜ α≤3 A+3a+ is low-grade B+3b+ middle-grades C+3c+ is high-grade 3 ＜ α≤4 A+4a+ is low-grade B+4b+ middle-grades C+4c+ is high-grade 4 ＜ α≤5 A+5a+ middle-grades B+5b+ is high-grade C+5c+ is high-grade 5 ＜ α A+6a+ middle-grades B+6b+ is high-grade C+6c+ is high-grade Wherein, 0 DEG C≤△ T≤2 DEG C, A, B, C are the default valve opening umber of pulse under relevant temperature, and ia, ib and ic are relevant temperature The correction value of lower valve opening umber of pulse, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6；Air quantity gear includes High-grade, middle-grade and low-grade three gears. - 14. a kind of refrigerator control system according to claim 13, it is characterised in that △ T values are 1 DEG C, and a values are 5, b Value is that 9, c values are 15.
- 15. a kind of refrigerator, it is characterised in that including the refrigerator control system described in claim any one of 8-14.
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| CN106322912B (en) * | 2016-08-31 | 2019-01-11 | 长虹美菱股份有限公司 | The control method of refrigerator electric expansion valve |
| CN110186173A (en) * | 2019-06-03 | 2019-08-30 | 广东美的暖通设备有限公司 | Blower control method, indoor unit, air conditioner and computer readable storage medium |
| CN110906666A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN110906668A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN110906664A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN110906665A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN110906669A (en) * | 2019-10-11 | 2020-03-24 | 合肥晶弘电器有限公司 | Refrigerator quick-freezing storage control method and refrigerator |
| CN113739381B (en) * | 2020-05-29 | 2022-09-27 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
| CN113739379B (en) * | 2020-05-29 | 2022-09-27 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
| CN111780487A (en) * | 2020-06-01 | 2020-10-16 | 珠海格力电器股份有限公司 | Fan control method and device |
| CN115200274B (en) * | 2022-07-21 | 2023-07-18 | 西安交通大学 | Refrigerator refrigerating capacity adjusting method |
| CN115371227A (en) * | 2022-08-22 | 2022-11-22 | 珠海格力电器股份有限公司 | Air deflector angle control method and device and split machine with upper air outlet and lower air outlet |
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