CN109489335A - Refrigerator blower control method - Google Patents

Refrigerator blower control method Download PDF

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Publication number
CN109489335A
CN109489335A CN201710823938.7A CN201710823938A CN109489335A CN 109489335 A CN109489335 A CN 109489335A CN 201710823938 A CN201710823938 A CN 201710823938A CN 109489335 A CN109489335 A CN 109489335A
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CN
China
Prior art keywords
wind file
evaporation fan
run
rate
compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710823938.7A
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Chinese (zh)
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CN109489335B (en
Inventor
蒋彬
李彦玫
宫春晖
范志军
芦树龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Special Refrigerator Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Special Refrigerator Co Ltd
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Priority to CN201710823938.7A priority Critical patent/CN109489335B/en
Publication of CN109489335A publication Critical patent/CN109489335A/en
Application granted granted Critical
Publication of CN109489335B publication Critical patent/CN109489335B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/11Fan speed control
    • F25B2600/111Fan speed control of condenser fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/11Fan speed control
    • F25B2600/112Fan speed control of evaporator fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00Control issues
    • F25D2600/06Controlling according to a predetermined profile
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/02Sensors detecting door opening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00Means for sensing or measuring; Sensors therefor
    • F25D2700/12Sensors measuring the inside temperature

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention discloses a kind of refrigerator blower control methods, comprising the following steps: wind speed partiting step divides wind-speed gear, including high wind file and low wind file;Refrigerator blower blast velocity control step, comprising: (1), detection door opening state, if when front door body is opened, control evaporation fan with low wind file run or it is out of service, if when front door body be effectively close, then follow the steps (2);(2), detecting box body temperature calculates rate of temperature change, if rate of temperature change is greater than setting change rate threshold value, controls evaporation fan and is run with low wind file, and otherwise, control evaporation fan is run with high wind file.Control method of the invention, by detecting door body switch state and rate of temperature change respectively, the corresponding wind speed for adjusting evaporation fan and condensation fan, when door opening state, is controlled evaporation fan and is run with low wind file or out of service to realize energy conservation;When shutdown state is according to rate of temperature change, control evaporation fan and condensation fan, to improve heat exchange efficiency.

Description

Refrigerator blower control method
Technical field
The present invention relates to a kind of refrigeration equipment control technology fields, specifically, being to be related to a kind of refrigerator air-blower control side Method.
Background technique
Existing refrigerator is only switched on using blower operating mode, shut down two states, and condensation fan work is same with compressor Step, blower operates when the compressor is operated, and blower shuts down when the compressor is stopped, this operating mode mainly stops in compressor By natural heat dissipation mode, radiating rate is slow for heat dissipation after only working;Evaporation fan working method is often to turn with power supply, and work shape State is single, and fan operation state cannot be adjusted according to refrigeration work state, and energy consumption is big.
Summary of the invention
The present invention only has booting, shutdown two states to solve the blower operating mode of existing refrigerator, and there are energy consumptions Big technical problem proposes a kind of refrigerator blower control method, can solve the above problem.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following scheme:
A kind of refrigerator blower control method, comprising the following steps:
Wind speed partiting step, wind-speed gear is divided, and includes at least high wind file and low wind file, and the high wind file includes at least One air speed value t11, the low wind file include at least one air speed value t21, wherein t11 > t21 > 0;
Refrigerator blower blast velocity control step, comprising:
(1), detect door opening state, if when front door body is opened, control evaporation fan with low wind file run or it is out of service, if When front door body be effectively close, then follow the steps (2);
(2), detecting box body temperature calculates rate of temperature change, if rate of temperature change is greater than setting change rate threshold value, controls steaming Hair blower is run with low wind file, and otherwise, control evaporation fan is run with high wind file.
Further, in step (1), judge that when front door body be the method effectively closed are as follows: calculating current time is apart from upper The duration at secondary moment of closing the door, current time are greater than setting duration threshold value apart from the duration at shutdown moment last time, then judge that door body is Effectively close.
Further, in step (1), if further including further judging the current fortune of evaporation fan when front door body is opened Row state step, if evaporation fan is controlled evaporation fan and run with low wind file currently with the operation of high wind file, if evaporation wind Machine is currently with low wind file operation or out of service, the then operating status for keeping evaporation fan current.
Further, step (1) if in when front door body be effectively close, further include judging compressor current operating conditions Step is controlled evaporation fan and condensation fan and is run respectively with high wind file if compressor is currently running, no to then follow the steps (2).
Further, the high wind file includes two air speed values t11, t12, wherein t11 < t12, the low wind file include Two air speed values t21, t22, wherein t21 > t22.
Further, before the step of judging compressor current operating conditions in step (1), further include judge current daytime/ The step of night mode, judges compressor current operating conditions, if compressor is out of service, holds if being currently Night Row step (21), detecting box body temperature calculate rate of temperature change, if rate of temperature change is greater than setting change rate threshold value, control Evaporation fan processed is run with the air speed value t22 of low wind file, otherwise, is controlled evaporation fan and is run with the air speed value t11 of high wind file.
Further, in step (1), if being currently day mode, compressor current operating conditions are judged, if compressor It is out of service, (22), detecting box body temperature are thened follow the steps, rate of temperature change is calculated, if rate of temperature change is greater than setting and becomes Rate threshold value is then controlled evaporation fan and is run with the air speed value t21 of low wind file, otherwise, controls evaporation fan with the wind of high wind file Speed value t12 operation.
Further, in step (1), if being currently Night, compressor current operating conditions are judged, if compressor It is currently running, then controls evaporation fan and condensation fan and run respectively with the air speed value t11 of high wind file.
Further, in step (1), if being currently day mode, compressor current operating conditions are judged, if compressor It is currently running, then controls evaporation fan and condensation fan and run respectively with the air speed value t12 of high wind file.
Compared with prior art, the advantages and positive effects of the present invention are: refrigerator blower control method of the invention, passes through Door body switch state and rate of temperature change are detected respectively, and the corresponding wind speed for adjusting evaporation fan and condensation fan opens the door It when state, is run by control evaporation fan with low wind file or out of service, reduces cooling capacity and be lost to realize energy conservation;Work as shutdown When state and big rate of temperature change, judge that load capacity is smaller in case, the cooling capacity flowing space is big, adjustment evaporation fan low speed operation Product refrigeration and energy conservation can be met;When rate of temperature change is small, judge that load capacity is larger in case, the cooling capacity flowing space is small, adjusts Rectification campaign machine high-speed cruising, reaches fast-refrigerating effect.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more Add clear.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is the electric-control system figure of refrigerator corresponding to refrigerator blower control method proposed by the invention;
Fig. 2 is a kind of embodiment flow chart of refrigerator blower control method proposed by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Embodiment one, the present embodiment propose a kind of refrigerator blower control method, as shown in Figure 1, to be cold in the present embodiment The electric-control system figure of cabinet, the automatically controlled refrigeration system of refrigerator include at least controller, temperature-sensing probe, heater strip, evaporation fan, condensating wind Machine, compressor.Controller receives temperature-sensing probe temperature, controls refrigeration compressor, fan operation and heater defrost, wherein blower Operation part increases speed controling signal end, for controlling the revolving speed of evaporation fan, condensation fan.As shown in Fig. 2, the present embodiment Refrigerator blower control method the following steps are included:
Wind speed partiting step, wind-speed gear is divided, and includes at least high wind file and low wind file, and high wind file includes at least one Air speed value t11, low wind file include at least one air speed value t21, wherein t11 > t21 > 0;
Refrigerator blower blast velocity control step, comprising:
S1, detection door opening state, if when front door body is opened, control evaporation fan with low wind file run or it is out of service, if When front door body be effectively close, then follow the steps S2;
S2, detecting box body temperature calculate rate of temperature change, if rate of temperature change is greater than setting change rate threshold value, control steaming Hair blower is run with low wind file, and otherwise, control evaporation fan is run with high wind file.Wherein, change rate threshold value is set as constant, is mentioned In preceding write-in control program.
When refrigerator design has energy conservation or Night or for a long time without door opening state, cooling capacity, during which will evaporation without loss in cabinet The operation of blower low speed can be effectively energy saving, if detect door opening action, is run or is stopped with low wind file by control evaporation fan It only runs, reduces cooling capacity and be lost to realize energy conservation;Or Night terminates, and adjusts the normal high-speed cruising of evaporation fan.Condensating wind Machine is mainly condenser and compressor heat dissipation, and evaporation fan is mainly used for exchanging heat, and controller is controllable to the wind speed of evaporation fan, is steamed Hair blower is primarily involved in cabinet intercooling cycle, when temperature change is very fast (change rate is big), judges that load capacity is smaller in case, cooling capacity flowing Space is big, and adjustment evaporation fan low speed operation can meet product refrigeration and energy conservation;When the relatively slow (change rate of detection temperature change It is small), judge that load capacity is larger in case, the cooling capacity flowing space is small, adjusts blower high-speed cruising, reaches fast-refrigerating effect.
Refrigerator blower control method of the invention, by detecting door body switch state and rate of temperature change respectively, accordingly Adjusting evaporation fan wind speed, if when front door body be close, control blower is carried out according to rate of temperature change, to reach energy saving effect Meet the maximization of refrigerator refrigerating efficiency while fruit.
Since refrigerator may be frequently opened and closed when using peak period, causes blower frequently to adjust wind speed, be unfavorable for blower Service life, in step S1, when front door body is that the judgment method effectively closed is, calculated current time apart from last time at closing time The duration at quarter, current time are greater than setting duration threshold value apart from the duration at shutdown moment last time, are then judged as that door body is effectively closed. By calculating current time apart from the duration at shutdown moment last time, set if current time is greater than apart from the duration at shutdown moment last time Periodically long threshold value without door opening action, illustrates to belong to and is chronically at shutdown state, controlled according to rate of temperature change for such as 2 hours Adjust blower wind speed.Wherein, duration threshold value is set as constant, in the program of write-in control in advance.
In order to reduce the start and stop rate of blower, the switching transition between its service life, and different wind speed is improved, is prevented short It substantially exchanges speed fan in time to cause to damage, in step S1, if further including that further judgement is steamed when front door body is opened The current operating status step of blower is sent out, if evaporation fan controls evaporation fan currently with the operation of high wind file with low wind Shelves operation, if evaporation fan currently with low wind file operation or it is out of service, keep the operation shape that evaporation fan is current State.If control evaporation fan is run with low wind file, the operating status that evaporation fan is current is kept, control command can also be reduced Quantity.
In order to increase the adjustable extent of each wind file air speed value, high wind file includes two air speed values t11, t12, wherein t11 < T12, low wind file include two air speed values t21, t22, wherein t21 > t22.Wherein, the air speed value of high wind file and low wind file is unlimited In above-mentioned each two, can be arranged according to actual needs several more.
If working as front door body in step S1 is effectively to close, further include the steps that judging compressor current operating conditions, if pressure Contracting machine is currently running, then controls evaporation fan and condensation fan and run respectively with high wind file, no to then follow the steps S2.Compressor is just Often when operation, evaporation fan high-speed cruising is conducive to the uniformity for improving in-cabinet temperature to increase cooling capacity flowing.
Use on daytime is concentrated on according to its handling characteristics for some commercial display cases, and night is rarely employed, in order to save About energy consumption and the step of be set with day night mode, compressor current operating conditions judged in step S1 before, further include that judgement is worked as The step of preceding day night mode, judges compressor current operating conditions if being currently Night, if compressor is out of service, S21, detecting box body temperature are thened follow the steps, rate of temperature change is calculated, if rate of temperature change is greater than setting change rate threshold value, It controls evaporation fan to run with the air speed value t22 of low wind file, otherwise, controls evaporation fan and run with the air speed value t11 of high wind file. That is, when being in Night, and compressor is out of service, if rate of temperature change is greater than setting change rate threshold value, bears in case Carrying capacity is smaller, and the cooling capacity flowing space is big, and product refrigeration and energy conservation can be met by adjusting evaporation fan with low wind file operation, meanwhile, Since Night loss of refrigeration capacity is small, load capacity is smaller in cabinet, therefore, controls evaporation fan with relatively smaller in low wind file Air speed value t22 operation, to reach energy-saving effect, otherwise, if rate of temperature change be less than setting change rate threshold value, judge in case bear Carrying capacity is larger, and the cooling capacity flowing space is small, and the high wind file operation of adjustment blower reaches fast-refrigerating effect, simultaneously as Night Loss of refrigeration capacity is small, and load capacity is smaller in cabinet, therefore, controls evaporation fan with the relatively smaller air speed value t11 in high wind file Operation, to reach energy-saving effect.
In step S1, if being currently Night, compressor current operating conditions are judged, if compressor is currently running, It then controls evaporation fan and condensation fan and is run respectively with the low air speed value t11 of high wind file.That is, when being in Night, When compressor operation simultaneously, run respectively with high wind file to improve heat exchange efficiency control evaporation fan and condensation fan, still, Since Night loss of refrigeration capacity is small, load capacity is smaller in cabinet, therefore, controls evaporation fan and condensation fan respectively with high wind file In relatively smaller air speed value t11 operation, to reach energy-saving effect.
In step S1, if being currently day mode, compressor current operating conditions are judged, if compressor is out of service, S22, detecting box body temperature are thened follow the steps, rate of temperature change is calculated, if rate of temperature change is greater than setting change rate threshold value, It controls evaporation fan to run with the air speed value t21 of low wind file, otherwise, controls evaporation fan and run with the air speed value t12 of high wind file. That is, when due to day mode, refrigerator frequency of use is high, frequently switches on, therefore cold consumption is big, in corresponding cabinet load capacity compared with Greatly, in order to improve heat exchange efficiency, when rate of temperature change is greater than setting change rate threshold value, evaporation fan is controlled with the height of low wind file Air speed value t21 operation, due to belonging to low wind file, while meeting energy saving requirement.It is greater than setting change rate threshold value in rate of temperature change When, it controls evaporation fan and is run with the high wind speed value t21 of low wind file, to meet refrigeration demand, reach fast-refrigerating effect.
In step S1, if being currently day mode, compressor current operating conditions are judged, if compressor is currently running, It then controls evaporation fan and condensation fan and is run respectively with the air speed value t12 of high wind file.Namely when day mode, refrigerator uses frequency Rate is high, frequently switches on, therefore cold consumption is big, load capacity is larger in corresponding cabinet, if compressor is currently running at this time, in order to improve Heat exchange efficiency is controlled evaporation fan and condensation fan and is run respectively with the high wind speed value t12 of high wind file, to meet refrigeration demand, is reached To fast-refrigerating effect.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck The variations, modifications, additions or substitutions that the those of ordinary skill in domain is made within the essential scope of the present invention, also should belong to this hair Bright protection scope.

Claims (9)

1. a kind of refrigerator blower control method, which comprises the following steps:
Wind speed partiting step, wind-speed gear is divided, and includes at least high wind file and low wind file, and the high wind file includes at least One air speed value t11, the low wind file include at least one air speed value t21, wherein t11 > t21 > 0;
Refrigerator blower blast velocity control step, comprising:
(1), detect door opening state, if when front door body is opened, control evaporation fan with low wind file run or it is out of service, if When front door body be effectively close, then follow the steps (2);
(2), detecting box body temperature calculates rate of temperature change, if rate of temperature change is greater than setting change rate threshold value, controls steaming Hair blower is run with low wind file, and otherwise, control evaporation fan is run with high wind file.
2. refrigerator blower control method according to claim 1, which is characterized in that in step (1), judge be when front door body The method effectively closed are as follows: calculate current time apart from the duration at shutdown moment last time, current time closed the door the moment apart from last time Duration be greater than setting duration threshold value, then judge door body be effectively closing.
3. refrigerator blower control method according to claim 1, which is characterized in that in step (1), if when front door body is beaten It opens, further includes further judging the current operating status step of evaporation fan, if evaporation fan is currently being run with high wind file, Evaporation fan is then controlled to run with low wind file, if evaporation fan currently with low wind file operation or it is out of service, keep The current operating status of evaporation fan.
4. refrigerator blower control method according to claim 1-3, which is characterized in that step (1) if in it is current Door body is effectively to close, and further includes the steps that judging compressor current operating conditions, if compressor is currently running, controls evaporation Blower and condensation fan are no to then follow the steps (2) respectively with the operation of high wind file.
5. refrigerator blower control method according to claim 4, which is characterized in that the high wind file includes two air speed values T11, t12, wherein t11 < t12, the low wind file include two air speed values t21, t22, wherein t21 > t22.
6. refrigerator blower control method according to claim 5, which is characterized in that judge that compressor is current in step (1) Before the step of operating status, further include the steps that judging current day night mode, if being currently Night, judges to compress Machine current operating conditions then follow the steps (21), detecting box body temperature if compressor is out of service, calculate rate of temperature change, If rate of temperature change is greater than setting change rate threshold value, controls evaporation fan and run with the air speed value t22 of low wind file, otherwise, control Evaporation fan processed is run with the air speed value t11 of high wind file.
7. refrigerator blower control method according to claim 6, which is characterized in that in step (1), if current for mould in the daytime Formula then judges compressor current operating conditions, if compressor is out of service, thens follow the steps (22), detecting box body temperature, meter Rate of temperature change is calculated, if rate of temperature change is greater than setting change rate threshold value, controls evaporation fan with the air speed value t21 of low wind file Otherwise operation is controlled evaporation fan and is run with the air speed value t12 of high wind file.
8. refrigerator blower control method according to claim 6, which is characterized in that in step (1), if being currently night mould Formula then judges compressor current operating conditions, if compressor is currently running, controls evaporation fan and condensation fan respectively with height The air speed value t11 of wind file is run.
9. refrigerator blower control method according to claim 7, which is characterized in that in step (1), if current for mould in the daytime Formula then judges compressor current operating conditions, if compressor is currently running, controls evaporation fan and condensation fan respectively with height The air speed value t12 of wind file is run.
CN201710823938.7A 2017-09-13 2017-09-13 Refrigerator fan control method Active CN109489335B (en)

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CN109489335B CN109489335B (en) 2020-12-25

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CN111854273A (en) * 2019-04-25 2020-10-30 博西华电器(江苏)有限公司 Refrigeration appliance, control method and device thereof, and computer readable storage medium
CN112066631A (en) * 2019-06-11 2020-12-11 青岛海尔特种电冰柜有限公司 Refrigerator fan control method
CN113693403A (en) * 2021-08-24 2021-11-26 珠海格力电器股份有限公司 Closed refrigeration display cabinet control method and device and closed refrigeration display cabinet
CN114234548A (en) * 2021-12-22 2022-03-25 珠海格力电器股份有限公司 Refrigerator temperature fluctuation control method, data processing method and device and refrigerator
CN114279070A (en) * 2021-12-20 2022-04-05 珠海格力电器股份有限公司 Control method and device of air conditioning system and air conditioning system
CN114562846A (en) * 2020-11-27 2022-05-31 青岛海尔电冰箱有限公司 Control method of refrigeration and freezing equipment and refrigeration and freezing equipment
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