CN101382375A - Defrosting control method for frost-free refrigerator - Google Patents
Defrosting control method for frost-free refrigerator Download PDFInfo
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- CN101382375A CN101382375A CNA2007100356957A CN200710035695A CN101382375A CN 101382375 A CN101382375 A CN 101382375A CN A2007100356957 A CNA2007100356957 A CN A2007100356957A CN 200710035695 A CN200710035695 A CN 200710035695A CN 101382375 A CN101382375 A CN 101382375A
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- defrost
- defrosting
- control method
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Abstract
The invention relates to a defrosting control method, in particular to a defrosting control method used for frost-free refrigerators. The technical proposal adopted by the invention is that: in the control process, whether the refrigerator needs to be defrosted is judged by two modules; a module 1 judges whether defrosting condition is reached by real-time calculating accumulated running time t1 of a compressor and accumulated opening time t2 of a refrigerating chamber in the defrosting period and by the calculation according to a formula (t1 plus 144 multiplied by t2 is more than or equal to 108000), the time unit is second, and when t1 is more than a certain value or meets the formula, the refrigerator enters the defrosting procedure; a module 2 judges whether defrosting is needed by detecting the temperature of a sensor of the refrigerating chamber, if that the temperature of the refrigerating chamber can not be controlled normally is detected, the temperature is increased continuously and the influence of other factors is excluded, the refrigerator enters defrosting. The defrosting control method provided by the invention can carry out defrosting operation to the refrigerator, has thorough defrosting and saves energy.
Description
Technical field
The present invention relates to a kind of defrosting control method, specifically is a kind of defrosting control method that is used for frost-free refrigerator.
Background technology
The parameter that existing frost-free refrigerator is used for controlling defrost generally has the accumulative total power-on time, and accumulative total compressor operating time and accumulative total are opened the door the time, defrosting sensor temperature, temperature and compressor Homes Using TV or the like in the casing.Have plenty of regularly defrost, promptly be fixed on defrost after the compressor operating a period of time or a period of time of powering on; Have plenty of comprehensively according to totally the compressor operating time and time two parameters that add up to open the door are controlled defrost; What have in addition then is by judging that whether normal temperature size and the compressor Homes Using TV in the casing control defrost periods and defrost time or the like, these control modes all can not reflect the order of severity of frosting comprehensively, can not get rid of the influence that environment for use changes, user mode that can not be comprehensive according to the user, the interior variations in temperature of ambient condition and casing is judged frosting state and control defrost, thereby can better interior temperature and the saving power consumption of control cabinet body.
Korean patent application KR20010072763 discloses a kind of Defrost method, and it is made up of the following step.At first detect refrigerator doors and whether open,, detect the temperature inside the box, calculate compressor operating time then, last, judge when door for closing, when the temperature inside the box is higher than design temperature and compressor operating time and reaches certain value, begin defrost operation.
Though such scheme has solved the needs of defrost operation to a certain extent.But, on defrosting time is held, still have problems.
Concrete defrost process comprises following steps in the prior art: 1) close miscellaneous part, only start fan and with the unlatching air door evaporimeter is carried out preheating, save power consumption; 2) close miscellaneous part, only heater only reaches break-off signal or reaches the maximum heating time to defrost terminator DTT; 3) all parts are closed, row's defrost water; 4) defrost finishes, normal control.But in each stage in above-mentioned steps, for example time of heater etc., relation is arranged with defrost effect and energy-saving effect.
Summary of the invention
The objective of the invention is will be at the deficiency of present frost-free refrigerator defrost rule, invent a kind of active defrost control model, this pattern calculates this defrost periods inner compressor accumulated running time in real time and refrigerating chamber accumulative total is opened the door the time, and need to judge whether defrost in conjunction with the variations in temperature in the casing, the order of severity that can directly reflect the frost layer, can get rid of the influence factor that environment for use changes, in defrost process, judge by defrost terminator DTT whether defrost should finish, thereby better control the temperature in the casing and save power consumption.
The technical solution used in the present invention is: judge by two modules whether refrigerator needs defrost in the control procedure; Module 1 is by calculating this defrost periods inner compressor accumulated running time t in real time
1Add up to open the door time t with refrigerating chamber
2, and by formula (t
1+ 144 * t
2〉=108000) calculate and to judge whether to reach the defrost condition, chronomere be second, as t1 during greater than certain numerical value or when satisfying above-mentioned formula, then enters the defrost program; Module 2 need to judge whether defrost by detecting the refrigerating chamber sensor temperature, can not normally control if detect temperature of refrigerating chamber, continue to rise, and to get rid of is the influence of other factors, then enters defrost.
Many methods of controlling defrost according to compressor operating time have been arranged in the prior art.Usually rule of thumb set after compressor operating reaches certain hour, enter the defrost program.
According to embodiments of the invention, a kind of defrosting method that the present invention proposes is:
1. if refrigerator powers on for the first time (being that refrigerator is hot casing), after then compressor accumulative total is moved certain hour, beginning defrost for the first time; After the defrost for the first time,
2. module 1, and control panel calculates compressor accumulated running time t in real time
1(s) and the refrigerating chamber accumulative total time t that opens the door
2(s), if when compressor accumulated running time surpasses certain numerical value, and satisfy following condition: t
1+ 144 * t
2〉=108000, then enter defrost process;
3. module 2, if temperature of refrigerating chamber greater than the start point, and refrigerating-chamber door closes, and then enters module 2, control panel writes down temperature of refrigerating chamber at set intervals one time in this module, and with T
iWith Δ T
i, Δ T
i=T
I+1-T
i(i=1,2,3 ...., n) expression:
1) if Δ T
iContinue less than 0, and temperature of refrigerating chamber then withdraws from module 2 less than the start point, change normal control over to;
2) if during the course, refrigerating-chamber door has open mode to occur, then T
iWith Δ T
iZero clearing treats that Men Guanhou rejudges;
3) if Δ T
iContinue greater than 0 (i=1,2,3 ...., n), then enter defrost process.
Among the present invention, after preferred refrigerator powers on for the first time, after compressor accumulative total is moved 3 hours, beginning defrost for the first time.
According to embodiments of the invention, in module 1,, and satisfy following condition: t if when compressor accumulated running time surpasses 6 hours
1+ 144 * t
2〉=108000, then enter defrost process.
According to embodiments of the invention, in module 2, the time interval of record temperature of refrigerating chamber is 30 minutes, and n is 5.
According to embodiments of the invention, preferably outside above-mentioned defrost rule, also have an auxiliary regular, promptly when compressor accumulative total is moved 30 hours, force defrost, avoid refrigerating efficiency to reduce.
When concrete enforcement defrost is operated, the preferred following condition of the present invention.
After defrost begins, judge whether compressor is in closed condition, if do not close, close after then waiting for 3 minutes.
After compressor cut out, evaporator fan and air door were opened 10 minutes.
The maximum duration that heater is opened is 45 minutes.
Frost-free refrigerator all is under the driving of fan, makes air finish cold and hot exchange through the circulation in air channel, thereby realize freezing.When frost layer on the evaporimeter was serious, resistance increased, and air can not pass through evaporimeter smoothly, realized freezing thereby cold air can not arrive refrigerating chamber by the air channel smoothly, caused that temperature of refrigerating chamber is higher can not normally be controlled.The present invention is by opening the door the time accumulative total compressor operating time, and the variation of judgement refrigerating chamber sensor temperature in conjunction with refrigerating chamber accumulative total, judge whether temperature is normal, if undesired, and whether because evaporimeter saves white causing, thereby need to judge whether defrost.
In addition, refrigerator in use often occurs opening the door, Men Wei fastens, or puts into the situations such as food of heat.Therefore, the variations in temperature that can bring unprovoked frost layer thickening to cause to the temperature inside the box.When setting the defrost operation, need to get rid of these situations, therefore, in technical scheme provided by the invention,, at first get rid of the situation of the variations in temperature that Yin Kaimen causes by the state of detecting gate.Adopted continuous detecting the temperature inside the box and its difference relatively, and after detecting door and opening state,, got rid of the erroneous judgement of avoiding Men Kai and hot food to cause temperature rise and causing detecting the method that recomputates variations in temperature after door is closed.
According to the defrosting method that provides of the present invention, can in time carry out the defrost operation and defrost is thorough and energy-conservation to refrigerator.
The specific embodiment
Object frost-free refrigerator such as Fig. 1 in the present embodiment comprise refrigerating chamber 1 among the figure, medial compartment 2, refrigerating chamber 3, refrigerating chamber sensor 4, DTT5, evaporimeter 6, heater 7, compressor 8.
Defrost control flow such as Fig. 2 in this enforcement.Judge by two modules whether refrigerator needs defrost in the control procedure.Module 1 is opened the door the time by this defrost periods inner compressor accumulated running time of real-time calculating and refrigerating chamber accumulative total, and calculate by formula and to judge whether to reach the defrost condition, module 2 need to judge whether defrost by detecting the refrigerating chamber sensor temperature, if detecting temperature of refrigerating chamber can not normally control, continue to rise, and getting rid of is the influence of other factors, only is undesired by the frosting influence, then enters defrost.Any one reaches the defrost condition module 1 and module 2, all enters defrost.Concrete defrost program is as follows:
4. if refrigerator powers on for the first time (being that refrigerator is hot casing), after then compressor accumulative total is moved 3h, beginning defrost for the first time;
5. after the defrost for the first time, control panel calculates compressor accumulated running time t in real time
1(s) and the refrigerating chamber accumulative total time t that opens the door
2(s), if compressor accumulated running time greater than 6h and satisfy following condition: t
1+ 144 * t
2〉=108000, then enter defrost process (module 1);
6. if temperature of refrigerating chamber is greater than the start point, and refrigerating-chamber door closes, then enters module 2, the every 30min of control panel writes down a temperature of refrigerating chamber in this module, and with T
iWith Δ T
i, Δ T
i=T
I+1-T
i(i=1,2,3 ...., 5) expression:
1) if Δ T
iContinue less than 0, and temperature of refrigerating chamber then withdraws from module 2 less than the start point, change normal control (avoid Men Kai and hot food to cause temperature rise and cause erroneous judgement) over to;
2) if during the course, refrigerating-chamber door has open mode to occur, then T
iWith Δ T
iZero clearing, treat Men Guanhou rejudge (avoid the door open cause temperature rise and cause the erroneous judgement);
3) if Δ T
iContinue greater than 0 (i=1,2,3 ...., 5), then enter defrost process (erroneous judgement of avoiding the hot food temperature rise to cause).
Concrete defrost process is as follows:
1. close miscellaneous part, only start fan and evaporimeter is carried out preheating, save power consumption with the unlatching air door;
2. close miscellaneous part, only heater only reaches break-off signal or reaches the maximum heating time to defrost terminator DTT;
3. all parts are closed, row's defrost water;
4. defrost finishes, normal control.
The concrete defrost operation control time is referring to Fig. 2.
Claims (8)
1, the defrosting control method of frost-free refrigerator is characterized in that judging by two modules whether refrigerator needs defrost in the control procedure; Module 1 is by calculating this defrost periods inner compressor accumulated running time t in real time
1Add up to open the door time t with refrigerating chamber
2, and by formula (t
1+ 144 * t
2〉=108000) calculate and to judge whether to reach the defrost condition,, then enter the defrost program as t1 during greater than certain numerical value or when satisfying above-mentioned formula; Module 2 need to judge whether defrost by detecting the refrigerating chamber sensor temperature, can not normally control if detect temperature of refrigerating chamber, continue to rise, and to get rid of is the influence of other factors, then enters defrost.
2, the defrosting control method of frost-free refrigerator according to claim 1 is characterized in that module 1 by calculating this defrost periods inner compressor accumulated running time in real time, when compressor operating time surpasses 6 hours, enters the defrost program.
3, the defrosting control method of frost-free refrigerator according to claim 1 and 2 is characterized in that
1) module 2, if temperature of refrigerating chamber greater than the start point, and refrigerating-chamber door closes, and then enters module 2, control panel writes down temperature of refrigerating chamber at set intervals one time in this module, and with T
iWith Δ T
i, Δ T
i=T
I+1-T
i(i=1,2,3 ...., n) expression:
2) if Δ T
iContinue less than 0, and temperature of refrigerating chamber then withdraws from module 2 less than the start point, change normal control over to;
3) if during the course, refrigerating-chamber door has open mode to occur, then T
iWith Δ T
iZero clearing treats that Men Guanhou rejudges;
4) if Δ T
iContinue greater than 0 (i=1,2,3 ...., n), then enter defrost process.
4, the defrosting control method of frost-free refrigerator according to claim 3 is characterized in that n wherein is 5.
5, the defrosting control method of frost-free refrigerator according to claim 1 and 2 is characterized in that forcing defrost when compressor accumulative total is moved 30 hours.
6, the defrosting control method of frost-free refrigerator according to claim 1 and 2 is characterized in that after defrost begins, and judges whether compressor is in closed condition, if do not close, closes after then waiting for 3 minutes.
7, the defrosting control method of frost-free refrigerator according to claim 1 and 2, it is characterized in that compressor cuts out in the defrost program after, evaporator fan and air door were opened 10 minutes.
8, the defrosting control method of frost-free refrigerator according to claim 1 and 2 is characterized in that the maximum duration that heater is opened in the defrost program is 45 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100356957A CN101382375A (en) | 2007-09-07 | 2007-09-07 | Defrosting control method for frost-free refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100356957A CN101382375A (en) | 2007-09-07 | 2007-09-07 | Defrosting control method for frost-free refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101382375A true CN101382375A (en) | 2009-03-11 |
Family
ID=40462342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100356957A Pending CN101382375A (en) | 2007-09-07 | 2007-09-07 | Defrosting control method for frost-free refrigerator |
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| Country | Link |
|---|---|
| CN (1) | CN101382375A (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472569A (en) * | 2009-06-30 | 2012-05-23 | 阿塞里克股份有限公司 | Refrigerator operating independently of ambient temperature |
| CN102954666A (en) * | 2012-11-21 | 2013-03-06 | 广东奥马电器股份有限公司 | Defrosting control method for refrigerator |
| CN103528340A (en) * | 2013-09-30 | 2014-01-22 | 合肥晶弘电器有限公司 | Air-cooling refrigerator intelligent defrosting entry point control device and method |
| CN104110937A (en) * | 2014-08-11 | 2014-10-22 | 无锡北斗星通信息科技有限公司 | Refrigerator monitoring device based on refrigerator door opening/closing states and humidity detection |
| CN104406349A (en) * | 2014-12-12 | 2015-03-11 | 合肥美的电冰箱有限公司 | Refrigerator and air quantity control method and device thereof |
| CN104833167A (en) * | 2015-02-27 | 2015-08-12 | 河南新飞电器有限公司 | Air cooling refrigerator defrosting method |
| CN104930814A (en) * | 2015-07-06 | 2015-09-23 | 合肥美的电冰箱有限公司 | Defrosting control method and device for refrigerator |
| CN105157322A (en) * | 2015-09-15 | 2015-12-16 | 合肥美菱股份有限公司 | Frostless air-cooled refrigerator comprising defrosting rules |
| CN105509402A (en) * | 2016-02-18 | 2016-04-20 | 合肥美的电冰箱有限公司 | Defrosting processing method and defrosting control device for refrigerator |
| CN106016876A (en) * | 2016-07-29 | 2016-10-12 | 合肥华凌股份有限公司 | Evaporator defrosting control method and device and refrigerator |
| CN107152826A (en) * | 2017-05-04 | 2017-09-12 | 合肥美的电冰箱有限公司 | Refrigerator and its defrosting control method, device |
| CN107940874A (en) * | 2017-11-22 | 2018-04-20 | 合肥华凌股份有限公司 | Refrigerator intelligent defrosting control method, controller and refrigeration plant and storage medium |
| CN109654799A (en) * | 2018-12-10 | 2019-04-19 | 广州擎天实业有限公司 | A kind of defrosting of direct cooling refrigerator function control method |
| CN110081655A (en) * | 2019-04-04 | 2019-08-02 | 海信容声(广东)冰箱有限公司 | Refrigeration equipment and evaporator antifrost method |
| CN110388786A (en) * | 2019-07-22 | 2019-10-29 | 河南新飞制冷器具有限公司 | Wind cooling refrigerator power-saving running method |
| CN112032937A (en) * | 2020-08-28 | 2020-12-04 | Tcl空调器(中山)有限公司 | Defrosting method, air conditioner and storage medium |
| CN112268401A (en) * | 2020-09-14 | 2021-01-26 | 珠海格力电器股份有限公司 | Refrigerator and defrosting control method thereof |
| CN113758137A (en) * | 2021-09-14 | 2021-12-07 | 创维电器股份有限公司 | Ultra-silent refrigerator control system and method with sleep mode |
| CN113790573A (en) * | 2021-09-18 | 2021-12-14 | 珠海格力电器股份有限公司 | Refrigerator and defrosting method thereof |
| CN113915881A (en) * | 2021-04-09 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and defrosting control method thereof |
| CN114165972A (en) * | 2021-12-15 | 2022-03-11 | 长虹美菱股份有限公司 | Power-on defrosting control method for air-cooled refrigerator |
| CN114791191A (en) * | 2022-04-25 | 2022-07-26 | 珠海格力电器股份有限公司 | Refrigerator, defrosting control method and device thereof, and computer-readable storage medium |
| CN115839599A (en) * | 2021-09-18 | 2023-03-24 | 青岛海尔电冰箱有限公司 | Refrigerator and defrosting control method and device thereof |
| CN116659175A (en) * | 2023-06-05 | 2023-08-29 | 江苏上菱智能电器有限公司 | A control method for preventing frost blockage in air-cooled refrigerators with mechanical dampers |
-
2007
- 2007-09-07 CN CNA2007100356957A patent/CN101382375A/en active Pending
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102472569B (en) * | 2009-06-30 | 2015-04-08 | 阿塞里克股份有限公司 | A refrigerator operating independently of the ambient temperature |
| CN102472569A (en) * | 2009-06-30 | 2012-05-23 | 阿塞里克股份有限公司 | Refrigerator operating independently of ambient temperature |
| CN102954666A (en) * | 2012-11-21 | 2013-03-06 | 广东奥马电器股份有限公司 | Defrosting control method for refrigerator |
| CN102954666B (en) * | 2012-11-21 | 2015-11-04 | 广东奥马电器股份有限公司 | Defrosting control method for refrigerator |
| CN103528340B (en) * | 2013-09-30 | 2016-07-06 | 合肥晶弘电器有限公司 | The intelligent defrosting point of penetration of a kind of wind cooling refrigerator controls device and control method |
| CN103528340A (en) * | 2013-09-30 | 2014-01-22 | 合肥晶弘电器有限公司 | Air-cooling refrigerator intelligent defrosting entry point control device and method |
| CN104110937A (en) * | 2014-08-11 | 2014-10-22 | 无锡北斗星通信息科技有限公司 | Refrigerator monitoring device based on refrigerator door opening/closing states and humidity detection |
| CN104110937B (en) * | 2014-08-11 | 2016-03-30 | 江苏双鹿电器有限公司 | Based on the refrigerator supervising device of refrigerator door open-close state and Humidity Detection |
| CN104406349A (en) * | 2014-12-12 | 2015-03-11 | 合肥美的电冰箱有限公司 | Refrigerator and air quantity control method and device thereof |
| CN104406349B (en) * | 2014-12-12 | 2017-06-20 | 合肥美的电冰箱有限公司 | Refrigerator and its air quantity control method, device |
| CN104833167A (en) * | 2015-02-27 | 2015-08-12 | 河南新飞电器有限公司 | Air cooling refrigerator defrosting method |
| CN104930814A (en) * | 2015-07-06 | 2015-09-23 | 合肥美的电冰箱有限公司 | Defrosting control method and device for refrigerator |
| CN104930814B (en) * | 2015-07-06 | 2017-06-20 | 合肥美的电冰箱有限公司 | the defrosting control method and device of refrigerator |
| CN105157322A (en) * | 2015-09-15 | 2015-12-16 | 合肥美菱股份有限公司 | Frostless air-cooled refrigerator comprising defrosting rules |
| CN105509402A (en) * | 2016-02-18 | 2016-04-20 | 合肥美的电冰箱有限公司 | Defrosting processing method and defrosting control device for refrigerator |
| CN106016876B (en) * | 2016-07-29 | 2018-08-28 | 合肥华凌股份有限公司 | Control method, control device and the refrigerator of evaporator defrost |
| CN106016876A (en) * | 2016-07-29 | 2016-10-12 | 合肥华凌股份有限公司 | Evaporator defrosting control method and device and refrigerator |
| CN107152826A (en) * | 2017-05-04 | 2017-09-12 | 合肥美的电冰箱有限公司 | Refrigerator and its defrosting control method, device |
| CN107940874A (en) * | 2017-11-22 | 2018-04-20 | 合肥华凌股份有限公司 | Refrigerator intelligent defrosting control method, controller and refrigeration plant and storage medium |
| CN109654799A (en) * | 2018-12-10 | 2019-04-19 | 广州擎天实业有限公司 | A kind of defrosting of direct cooling refrigerator function control method |
| CN110081655A (en) * | 2019-04-04 | 2019-08-02 | 海信容声(广东)冰箱有限公司 | Refrigeration equipment and evaporator antifrost method |
| CN110388786A (en) * | 2019-07-22 | 2019-10-29 | 河南新飞制冷器具有限公司 | Wind cooling refrigerator power-saving running method |
| CN110388786B (en) * | 2019-07-22 | 2020-11-13 | 河南新飞制冷器具有限公司 | Electricity-saving operation method of air-cooled refrigerator |
| CN112032937A (en) * | 2020-08-28 | 2020-12-04 | Tcl空调器(中山)有限公司 | Defrosting method, air conditioner and storage medium |
| CN112268401A (en) * | 2020-09-14 | 2021-01-26 | 珠海格力电器股份有限公司 | Refrigerator and defrosting control method thereof |
| CN113915881A (en) * | 2021-04-09 | 2022-01-11 | 海信（山东）冰箱有限公司 | Refrigerator and defrosting control method thereof |
| CN113758137A (en) * | 2021-09-14 | 2021-12-07 | 创维电器股份有限公司 | Ultra-silent refrigerator control system and method with sleep mode |
| CN113790573A (en) * | 2021-09-18 | 2021-12-14 | 珠海格力电器股份有限公司 | Refrigerator and defrosting method thereof |
| CN115839599A (en) * | 2021-09-18 | 2023-03-24 | 青岛海尔电冰箱有限公司 | Refrigerator and defrosting control method and device thereof |
| CN115839599B (en) * | 2021-09-18 | 2025-02-18 | 青岛海尔电冰箱有限公司 | Refrigerator and defrosting control method and device thereof |
| CN114165972A (en) * | 2021-12-15 | 2022-03-11 | 长虹美菱股份有限公司 | Power-on defrosting control method for air-cooled refrigerator |
| CN114791191A (en) * | 2022-04-25 | 2022-07-26 | 珠海格力电器股份有限公司 | Refrigerator, defrosting control method and device thereof, and computer-readable storage medium |
| CN114791191B (en) * | 2022-04-25 | 2023-09-12 | 珠海格力电器股份有限公司 | Refrigerator, defrosting control method and device thereof and computer readable storage medium |
| CN116659175A (en) * | 2023-06-05 | 2023-08-29 | 江苏上菱智能电器有限公司 | A control method for preventing frost blockage in air-cooled refrigerators with mechanical dampers |
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