CN105509411A - Refrigerator control method system and refrigerator - Google Patents
Refrigerator control method system and refrigerator Download PDFInfo
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- CN105509411A CN105509411A CN201610074069.8A CN201610074069A CN105509411A CN 105509411 A CN105509411 A CN 105509411A CN 201610074069 A CN201610074069 A CN 201610074069A CN 105509411 A CN105509411 A CN 105509411A
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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
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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
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a refrigerator control method system and a refrigerator. The method comprises the following steps: acquiring an ambient temperature and a superheating temperature of an evaporator in real time; determining air quantity shift of a variable speed fan and/or operation opening pulse count of an electronic expansion valve according to the ambient temperature and superheating temperature; and adjusting the air output by the variable speed fan according to the determined air quantity shift, adjusting the operation opening of the electronic expansion valve according to the operation opening pulse count, and implementing refrigerant flow control by the electronic expansion valve in combination with capillaries. The ambient temperature and superheating temperature of the evaporator are acquired to synergically control the opening of the electronic expansion valve and the rotation speed of the fan, thereby achieving the goal of matching the refrigerating capacity, air output and heat load, and implementing stable high-efficiency operation of the refrigerator under various working conditions. The electronic expansion valve is combined with the capillaries to implement the flow adjustment of the system refrigerant, thereby coping with various loads efficiently, and avoiding the problems of low refrigerator cooling speed and the like under high-load working conditions.
Description
Technical field
The present invention relates to electrical equipment control field, particularly relate to a kind of controlling method for refrigerator system and refrigerator.
Background technology
At present, refrigerator industry is towards future developments such as large volume, intellectualities, and most of refrigerator still adopts the most original capillary as throttling arrangement.The step-down throttle part that capillary is commonly used in the refrigeration system of below 10kW as the refrigerating capacity such as refrigerator, domestic air conditioner, the advantages such as it is simple that it has structure, with low cost, the difficult leakage of cold-producing medium, but regulating power is weak during its variable working condition, small adjustment can only be done to cooling system agent flux.When system loading changes greatly, particularly existing large volume refrigerator, when its internal reservoir quantity of food is from nothing to full, its thermic load changes greatly, refrigerator refrigeration system cannot respond effectively in time, and then may produce refrigerator long period temperature and can not reach setting value.The particularly appearance of intelligent refrigerator, have higher requirement to the controllability of refrigerator system and functional diversity, traditional capillary can not well meet the demands.
Conventional refrigerator uses capillary as restricting element, and system refrigerant changes in flow rate is less, and supports the use more and determine rotating speed blower fan.When load variations or function setting change, system response time is slow, and refrigerating capacity regulating power is poor, and operational efficiency is lower.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of controlling method for refrigerator system and refrigerator.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of controlling method for refrigerator, comprising:
S1, the degree of superheat of Real-time Collection environment temperature and evaporimeter;
S2, calculate according to the real-time degree of superheat T gathered and the standard degree of superheat △ T prestored and judge parameter alpha, be designated as α=T-△ T, wherein, standard degree of superheat △ T obtains when refrigerant circulation circuit stable operation;
S3, according to air quantity gear and/or the electric expansion valve operation valve opening umber of pulse of the span and corresponding current environmental temperature determination variable rotating speed fan that judge parameter alpha;
S4, variable rotating speed fan adjusts air quantity according to the air quantity gear determined, electric expansion valve is according to operation valve opening umber of pulse adjustment self-operating aperture, and electric expansion valve realizes refrigerant flow control in conjunction with capillary.
For achieving the above object, present invention also offers a kind of refrigerator control system, comprising: environment temperature sensor, for Real-time Collection environment temperature, and the environment temperature of collection is sent to controller; Degree of superheat detection module, for the degree of superheat of Real-time Collection evaporimeter, and sends to controller by the degree of superheat of collection; Described controller, judges parameter alpha for calculating according to the real-time degree of superheat T gathered and the standard degree of superheat △ T prestored; According to air quantity gear and/or the electric expansion valve operation valve opening umber of pulse of the span and corresponding current environmental temperature determination variable rotating speed fan that judge parameter alpha; Wherein, α=T-△ T, standard degree of superheat △ T obtains when refrigerant circulation circuit stable operation; Variable rotating speed fan, for adjusting air quantity according to the air quantity gear determined; Electric expansion valve, for adjusting self-operating aperture according to operation valve opening umber of pulse.Capillary, realizes refrigerant flow control for coordinating with electric expansion valve.
For achieving the above object, present invention also offers a kind of refrigerator, comprise the refrigerator control system described in technique scheme.
The invention has the beneficial effects as follows: the environment temperature that the present invention is gathered by environment temperature sensor and the evaporator superheat Collaborative Control electronic expansion valve opening that degree of superheat acquisition module gathers and rotation speed of fan, reach refrigerating capacity, object that air output mates with thermic load, realize refrigerator stability and high efficiency running under various operating mode; Simultaneously electric expansion valve is combined with capillary and realizes system refrigerant Flow-rate adjustment, realizes efficiently tackling various load, to avoid occurring under high load working condition the problems such as Temperature drop in refrigerator speed is slow.
Accompanying drawing explanation
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.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1, as shown in Figure 1, 2, a kind of refrigerator control system, comprising: environment temperature sensor, for Real-time Collection environment temperature, and the environment temperature of collection is sent to controller; Degree of superheat detection module, for the degree of superheat of Real-time Collection evaporimeter, and sends to controller by the degree of superheat of collection; Described controller, judges parameter alpha for calculating according to the real-time degree of superheat T gathered and the standard degree of superheat △ T prestored; According to air quantity gear and/or the electric expansion valve operation valve opening umber of pulse of the span and corresponding current environmental temperature determination variable rotating speed fan that judge parameter alpha; Wherein, α=T-△ T, real-time degree of superheat T=T
2-T
1, T
2evaporator outlet temperature, T
1for evaporator temperature, standard degree of superheat △ T obtains when refrigerant circulation circuit stable operation; Variable rotating speed fan, for adjusting air quantity according to the air quantity gear determined; Electric expansion valve, for adjusting self-operating aperture according to operation valve opening umber of pulse; Capillary, realizes refrigerant flow control for coordinating with electric expansion valve.Environment temperature sensor described in the present embodiment is arranged on outside casing; The described degree of superheat is detected as the temperature sensor being arranged in evaporator and exit position.Valve body aperture mainly refers to the valve opening umber of pulse of electric expansion valve, and under a certain operating mode, the valve opening umber of pulse of electric expansion valve is for presetting valve opening umber of pulse and valve opening pulse shape modification value sum.
The environment temperature that the present invention is gathered by environment temperature sensor and the evaporator superheat Collaborative Control electronic expansion valve opening that degree of superheat acquisition module gathers and rotation speed of fan, reach refrigerating capacity, object that air output mates with thermic load, realize refrigerator stability and high efficiency running under various operating mode; Simultaneously electric expansion valve is combined with capillary and realizes system refrigerant Flow-rate adjustment, realizes efficiently tackling various load, to avoid occurring under high load working condition the problems such as Temperature drop in refrigerator speed is slow.
Preset valve opening umber of pulse relevant to environment temperature, the valve opening umber of pulse of electric expansion valve is set as corresponding default valve opening umber of pulse according to current environment temperature by described controller; According to judging the span of parameter alpha and corresponding current environmental temperature determination valve opening pulse shape modification value, valve opening umber of pulse and valve opening pulse shape modification value sum will be preset as running valve opening umber of pulse, wherein, presetting valve opening umber of pulse is the default valve opening umber of pulse that multiple, different temperature range is corresponding different.The default valve opening umber of pulse that different temperatures range set is different, make the aperture of electric expansion valve can environmentally variations in temperature and real-time change, regulate electronic expansion valve opening according to pressure drop needed for system at varying environment temperature and electric expansion valve self reducing pressure by regulating flow performance, system adaptive capacity strengthens.
Preset valve opening umber of pulse described in the present embodiment and be set to three, be designated as A, B and C respectively, the corresponding environment temperature of described A is less than or equal to 20 DEG C, and B corresponds to environment temperature and is greater than 20 DEG C and is less than or equal to 30 DEG C, and the corresponding environment temperature of C is greater than 30 DEG C.Wherein, 90≤A≤120,180≤B≤210,260≤C≤300.Classifying rationally temperature range of the present invention, by temperature range with 20 DEG C and 30 DEG C for separation is divided into three temperature ranges, the corresponding default valve opening umber of pulse of each temperature range.
In the present embodiment, A value is 120, B value be 180, C value is 300.
According to judging the span of parameter alpha and corresponding current environmental temperature determination valve opening pulse shape modification value, described valve opening pulse shape modification value is determined according to following table:
| Ring temperature≤20 | 20 < ring temperature≤30 | 30 < ring temperature | |
| 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 are the correction value of valve opening umber of pulse under relevant temperature, 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 of evaporimeter and the standard degree of superheat and judges parameter, according to judging that the size of parameter determines valve opening pulse shape modification value, realize accurately processing the degree of superheat, system dynamic response is quick, it is overheated that evaporimeter occurs, electric expansion valve just can regulate according to its size, and can revise constantly according to degree of superheat size variation in adjustment process, improves the responding ability of system to thermic load change in case.
The air quantity gear of valve opening umber of pulse and variable rotating speed fan is run according to following table determination electric expansion valve:
| Ring temperature≤20 | 20 < ring temperature≤30 | 30 < ring temperature | |
| α≤0 | A+0 is low-grade | B+0 is low-grade | C+0 is middle-grade |
| 0＜α≤1 | A+a+ is low-grade | B+b+ is low-grade | C+c+ is middle-grade |
| 1＜α≤2 | A+2a+ is low-grade | B+2b+ is low-grade | C+2c+ is middle-grade |
| 2＜α≤3 | A+3a+ is low-grade | B+3b+ is middle-grade | C+3c+ is high-grade |
| 3＜α≤4 | A+4a+ is low-grade | B+4b+ is middle-grade | C+4c+ is high-grade |
| 4＜α≤5 | A+5a+ is middle-grade | B+5b+ is high-grade | C+5c+ is high-grade |
| 5＜α | A+6a+ is middle-grade | 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 the correction value of valve opening umber of pulse under relevant temperature, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6; Air quantity gear comprises top grade, middle-grade and low-grade three gears.In the present embodiment, △ T value is 1 DEG C, and a value is 5, b value be 9, c value is 15.
The present invention defines one according to the real-time degree of superheat of evaporimeter and the standard degree of superheat and judges parameter, according to the gear of environment temperature determination variable rotating speed fan judging parameter and correspondence, realize accurately processing blower fan gear, system dynamic response is quick, it is overheated that evaporimeter occurs, variable rotating speed fan just can regulate according to its size, and can carry out shift constantly according to degree of superheat size variation in adjustment process, improves the responding ability of system to thermic load change in case.
The environment temperature that the present invention is gathered by environment temperature sensor and the evaporator superheat Collaborative Control electronic expansion valve opening that degree of superheat acquisition module gathers and rotation speed of fan, reach refrigerating capacity, object that air output mates with thermic load, realize refrigerator stability and high efficiency running under various operating mode.Connect electric expansion valve as the throttling arrangement of system with capillary, as shown in Figure 1, cold-producing medium is introduced into capillary to its concrete structure after condenser flows out, and flows through electric expansion valve more afterwards, finally flows into evaporimeter.Select capillary with electric expansion valve series connection, the requirement of adjust flux can be reached, also can realize evaporating temperature in suitable scope.Wherein electronic expansion valve regulating flow principle: electronic controller is by sending pulse signal on coil, control the rotation (as Fig. 3) of rotor part, by the transmission of screw mandrel and nut, be that needle moves linearly vertically by the convert rotational motion of rotor part, thus regulate the flow area of valve port, regulate the flow of cold-producing medium, stop dog part to be moved up and down control valve needle movement stroke by slip ring simultaneously, thus ensures that valve moves all the time in the pulse of regulation.When valve pulse is from 0 to 350 pulse change, flow system flow changes to M from 0, and the two is non-linear variation.
The present invention accurately processes the degree of superheat, the degree of superheat mainly refers to the temperature difference of evaporator inlet-outlet, the different degrees of superheat represent the size of evaporator heat exchange area utilization, the larger evaporator superheat of system heat load is larger, evaporimeter utilization rate is less, now the required aperture regulated of electric expansion valve is also larger: secondly, according to electric expansion valve own characteristic, at varying environment temperature, even if the degree of superheat is identical, but electronic expansion valve opening adjusting size is different, this is mainly because environment temperature is different, system high and low pressure side pressure (pressure reduction namely between condenser from evaporimeter) is different, the pressure drop that electric expansion valve needed for system produces is not identical yet, this just causes when the degree of superheat is identical, the different electronic expansion valve opening adjusting size of environment temperature is also different.The benefit that this control mode is brought: first system dynamic response is quick, it is overheated that evaporimeter occurs, electric expansion valve just can regulate according to its size, and can revise in real time according to degree of superheat size variation in adjustment process, improve the responding ability of system to thermic load change in case; Secondly, at changing environment temperature, system adaptive capacity strengthens, and regulates electronic expansion valve opening according to pressure drop needed for system at varying environment temperature and electric expansion valve self reducing pressure by regulating flow performance, refrigerator is run more efficient, more energy-conservation.
Embodiment 2, as shown in Figure 4, a kind of refrigerator, comprises the refrigerator control system described in embodiment 1.
Embodiment 3, as shown in Figure 5, a kind of controlling method for refrigerator, comprising:
S1, the degree of superheat of Real-time Collection environment temperature and evaporimeter;
S2, calculate according to the real-time degree of superheat T gathered and the standard degree of superheat △ T prestored and judge parameter alpha, be designated as α=T-△ T, wherein, standard degree of superheat △ T obtains when refrigerant circulation circuit stable operation;
S3, according to air quantity gear and/or the electric expansion valve operation valve opening umber of pulse of the span and corresponding current environmental temperature determination variable rotating speed fan that judge parameter alpha;
S4, variable rotating speed fan adjusts air quantity according to the air quantity gear determined, electric expansion valve is according to operation valve opening umber of pulse adjustment self-operating aperture, and electric expansion valve realizes refrigerant flow control in conjunction with capillary.
Particularly, determine in S3 that electric expansion valve runs being implemented as of valve opening umber of pulse: 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; According to judging the span of parameter alpha and corresponding current environmental temperature determination valve opening pulse shape modification value, valve opening umber of pulse and valve opening pulse shape modification value sum will be preset as running valve opening umber of pulse, wherein, presetting valve opening umber of pulse is the default valve opening umber of pulse that multiple, different temperature range is corresponding different.
Described default valve opening umber of pulse is set to three, is designated as A, B and C respectively, and the corresponding environment temperature of described A is less than or equal to 20 DEG C, B corresponds to environment temperature and is greater than 20 DEG C and is less than or equal to 30 DEG C, and the corresponding environment temperature of C is greater than 30 DEG C, wherein, 90≤A≤120,180≤B≤210,260≤C≤300.In the present embodiment, A value is 120, B value be 180, C value is 300.
According to judging the span of parameter alpha and corresponding current environmental temperature determination valve opening pulse shape modification value, described valve opening pulse shape modification value is determined according to following table:
| Ring temperature≤20 | 20 < ring temperature≤30 | 30 < ring temperature | |
| 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 are the correction value of valve opening umber of pulse under relevant temperature, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6.
Run the air quantity gear of valve opening umber of pulse and variable rotating speed fan according to following table determination electric expansion valve in S3:
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 the correction value of valve opening umber of pulse under relevant temperature, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6; Air quantity gear comprises top grade, middle-grade and low-grade three gears.In the present embodiment, △ T value is 1 DEG C, and a value is 5, b value be 9, c value is 15.
The environment temperature that the present invention is gathered by environment temperature sensor and the evaporator superheat Collaborative Control electronic expansion valve opening that degree of superheat acquisition module gathers and rotation speed of fan, reach refrigerating capacity, object that air output mates with thermic load, realize refrigerator stability and high efficiency running under various operating mode.
The present invention proposes the control method of refrigerant flow.In refrigerator stable operation process, first according to the aperture of environment temperature setting valve body, by the evaporator inlet-outlet temperature difference, valve body aperture is regulated afterwards.First, improve the adaptability of refrigerator, make refrigerator well adapt to high load capacity operating mode.Secondly accelerate refrigerator to the response speed of thermic load, make refrigerator can respond user fast and store food and increase, reduce to add load to the impact of refrigerator temperature, finally reach refrigerator and meet the various demand of user and the object of Effec-tive Function.
The present invention to be combined with capillary by electric expansion valve and to realize system refrigerant Flow-rate adjustment, realizes the various load of efficient reply, to avoid occurring under high load working condition the problems such as Temperature drop in refrigerator speed is slow.Electronic expansion valve opening, by the evaporator inlet-outlet temperature difference and environment temperature co-controlling, to thermic load sensitive in variation of ambient temperature and case, can make corresponding change fast, improves refrigerator adaptability.Today that particularly intelligent refrigerator is prevailing, user is more and more higher to refrigerator performance requirement, and refrigerator functions gets more and more, and controls, efficiently solve the problem of conventional refrigerator modulability difference in conjunction with capillary according to said method to electric expansion valve.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a controlling method for refrigerator, is characterized in that, comprising:
S1, the degree of superheat of Real-time Collection environment temperature and evaporimeter;
S2, calculate according to the real-time degree of superheat T gathered and the standard degree of superheat △ T prestored and judge parameter alpha, be designated as α=T-△ T, wherein, standard degree of superheat △ T obtains when refrigerant circulation circuit stable operation;
S3, according to air quantity gear and/or the electric expansion valve operation valve opening umber of pulse of the span and corresponding current environmental temperature determination variable rotating speed fan that judge parameter alpha;
S4, variable rotating speed fan adjusts air quantity according to the air quantity gear determined, electric expansion valve is according to operation valve opening umber of pulse adjustment self-operating aperture, and electric expansion valve realizes refrigerant flow control in conjunction with capillary.
2. a kind of controlling method for refrigerator according to claim 1, is characterized in that, determines that electric expansion valve runs being implemented as of valve opening umber of pulse 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; According to judging the span of parameter alpha and corresponding current environmental temperature determination valve opening pulse shape modification value, valve opening umber of pulse and valve opening pulse shape modification value sum will be preset as running valve opening umber of pulse, wherein, presetting valve opening umber of pulse is the default valve opening umber of pulse that multiple, different temperature range is corresponding different.
3. a kind of controlling method for refrigerator according to claim 2, it is characterized in that, described default valve opening umber of pulse is set to three, is designated as A, B and C respectively, and the corresponding environment temperature of described A is less than or equal to 20 DEG C, B corresponds to environment temperature and is greater than 20 DEG C and is less than or equal to 30 DEG C, the corresponding environment temperature of C is greater than 30 DEG C, wherein, and 90≤A≤120,180≤B≤210,260≤C≤300.
4. a kind of controlling method for refrigerator according to claim 3, is characterized in that, A value is 120, B value be 180, C value is 300.
5. a kind of controlling method for refrigerator according to claim 2, is characterized in that, according to judging the span of parameter alpha and corresponding current environmental temperature determination valve opening pulse shape modification value, described valve opening pulse shape modification value is determined according to following table:
Wherein, 0 DEG C≤△ T≤2 DEG C, ia, ib and ic are the correction value of valve opening umber of pulse under relevant temperature, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6.
6. a kind of controlling method for refrigerator according to any one of claim 1-5, is characterized in that, runs the air quantity gear of valve opening umber of pulse and variable rotating speed fan in S3 according to following table determination electric expansion valve:
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 valve opening umber of pulse correction value under relevant temperature, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6; Air quantity gear comprises top grade, middle-grade and low-grade three gears.
7. a kind of controlling method for refrigerator according to claim 6, it is characterized in that, △ T value is 1 DEG C, and a value is 5, b value be 9, c value is 15.
8. a refrigerator control system, is characterized in that, comprising:
Environment temperature sensor, for Real-time Collection environment temperature, and sends to controller by the environment temperature of collection;
Degree of superheat detection module, for the degree of superheat of Real-time Collection evaporimeter, and sends to controller by the degree of superheat of collection;
Described controller, judges parameter alpha for calculating according to the real-time degree of superheat T gathered and the standard degree of superheat △ T prestored; According to air quantity gear and/or the electric expansion valve operation valve opening umber of pulse of the span and corresponding current environmental temperature determination variable rotating speed fan that judge parameter alpha;
Wherein, α=T-△ T, standard degree of superheat △ T obtains when refrigerant circulation circuit stable operation;
Variable rotating speed fan, for adjusting air quantity according to the air quantity gear determined;
Electric expansion valve, for adjusting self-operating aperture according to operation valve opening umber of pulse;
Capillary, realizes refrigerant flow control for coordinating with electric expansion valve.
9. a kind of refrigerator control system according to claim 8, is characterized in that, the valve opening umber of pulse of electric expansion valve is set as corresponding default valve opening umber of pulse according to current environment temperature by described controller; According to judging the span of parameter alpha and corresponding current environmental temperature determination valve opening pulse shape modification value, valve opening umber of pulse and valve opening pulse shape modification value sum will be preset as running valve opening umber of pulse, wherein, presetting valve opening umber of pulse is the default valve opening umber of pulse that multiple, different temperature range is corresponding different.
10. a kind of refrigerator control system according to claim 9, it is characterized in that, described default valve opening umber of pulse is set to three, is designated as A, B and C respectively, and the corresponding environment temperature of described A is less than or equal to 20 DEG C, B corresponds to environment temperature and is greater than 20 DEG C and is less than or equal to 30 DEG C, the corresponding environment temperature of C is greater than 30 DEG C, wherein, and 90≤A≤120,180≤B≤210,260≤C≤300.
11. a kind of refrigerator control systems according to claim 10, is characterized in that, A value is 120, B value be 180, C value is 300.
12. a kind of refrigerator control systems according to claim 9, is characterized in that, according to judging the span of parameter alpha and corresponding current environmental temperature determination valve opening pulse shape modification value, described valve opening pulse shape modification value is determined according to following table:
Wherein, 0 DEG C≤△ T≤2 DEG C, ia, ib and ic are the correction value of valve opening umber of pulse under relevant temperature, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6.
13. a kind of refrigerator control systems described in-12 any one according to Claim 8, is characterized in that, run the air quantity gear of valve opening umber of pulse and variable rotating speed fan according to following table determination electric expansion valve:
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 the correction value of valve opening umber of pulse under relevant temperature, 5≤a≤7,8≤b≤10,13≤c≤15, i=0,1,2,3,4,5,6; Air quantity gear comprises top grade, middle-grade and low-grade three gears.
14., according to refrigerator control system a kind of described in claim 13, is characterized in that, △ T value is 1 DEG C, and a value is 5, b value be 9, c value is 15.
15. 1 kinds of refrigerators, is characterized in that, comprise the refrigerator control system described in any one of claim 8-14.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| 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 |
| 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 |
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| 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 |
| CN113739379A (en) * | 2020-05-29 | 2021-12-03 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
| CN113739381A (en) * | 2020-05-29 | 2021-12-03 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
| CN115200274A (en) * | 2022-07-21 | 2022-10-18 | 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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| CN106322912A (en) * | 2016-08-31 | 2017-01-11 | 合肥美菱股份有限公司 | Control method for electronic expansion valve for refrigerator |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| CN113739379A (en) * | 2020-05-29 | 2021-12-03 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and computer readable storage medium |
| CN113739381A (en) * | 2020-05-29 | 2021-12-03 | 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 |
| CN115200274A (en) * | 2022-07-21 | 2022-10-18 | 西安交通大学 | Refrigerator refrigerating capacity adjusting method |
| 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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