CN1281138A - Temp control method of periodic refrigerating and/or heating system - Google Patents
Temp control method of periodic refrigerating and/or heating system Download PDFInfo
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- CN1281138A CN1281138A CN 00111229 CN00111229A CN1281138A CN 1281138 A CN1281138 A CN 1281138A CN 00111229 CN00111229 CN 00111229 CN 00111229 A CN00111229 A CN 00111229A CN 1281138 A CN1281138 A CN 1281138A
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Abstract
A temp. control method for periodically refrigerating and/or heating system can continuously regulate the temp. value for starting the system and the temp. value for stopping the system to reach a needed temp. range with high accuracy. It can also be automatically and periodically calibrated. Said method is suitable for refrigerator, air conditioner, microwave oven, electric water heater, etc.
Description
The present invention relates to periodic refrigerating and/or heating.
The temperature-controlled process of existing periodic refrigerating and/or heating generally is after presetting certain temperature (design temperature control gear or temperature value), and refrigeration and/or heating are just according to a certain fixing unlatching value and close value operation.The unlatching value of this refrigeration and/or heating and close value are can not be self-adjusting.So often occur when freezing and/or after heating reaches stable state, there is certain temperature difference between the mean temperature of this system and the preset temperature, owing to there is the influence of unreliable, the destabilizing factor of certain discreteness and application system itself between refrigeration or the heating individuality; Sometimes this temperature difference is quite big, exceeds desired temperature, departure accuracy rating, causes temperature control inaccurate.
The objective of the invention is for addressing the above problem, provide a kind of and this refrigeration system is constantly adjusted in the unlatching temperature value and the closing temperature value of relevant gear when running to steady operational status under the preset temperature value of relevant gear, the refrigeration system that finally is met the temperature control precision requirement is opened temperature value and the periodic refrigerating of closing temperature value and/or the temperature-controlled process of heating.
For achieving the above object, the present invention realizes like this
The temperature-controlled process of a kind of periodic refrigerating and/or heating, adopt following steps:
1). the control program of this temperature-controlled process establishment is deposited in the program storage of control module of periodic refrigerating and/or heating;
2). start this periodic refrigerating and/or heating, the content executable operations of temperature-controlled process in its control module follow procedure;
3). the temperature control unit of this periodic refrigerating and/or heating is provided with one or more temperature gears, the corresponding set temperature value T of each gear
0, the closing temperature value T of corresponding simultaneously this periodic refrigerating and/or heating
OFFUnlatching temperature value T with this periodic refrigerating and/or heating
ONThese data store in the memory;
4). judge the present located gear, current unlatching temperature value is set at the unlatching temperature value T of this gear
ONBe set at the closing temperature value T of this gear with current closing temperature value
OFF
5). this periodic refrigerating and/or heating control module are according to current unlatching temperature value T
ONWith current closing temperature value T
OFFControl its refrigeration and/or heating opening and closing, the operation one-period;
6). detect this periodic refrigerating and/or heating and whether be in steady operational status,
If not, it is rapid then to repeat previous step,
If then carry out next step;
7). calculate the average temperature value T of current period;
8). calculate the average temperature value T of current period and the set temperature value T of current gear
0Difference, i.e. T-T
0
9). judge whether T-T
0＞C, wherein C is a temperature departure precision,
If not, carry out next step,
If current unlatching temperature value is set at T
ON-a
1, current closing temperature value is set at T
OFF-b
1After repeat above-mentioned the 5th step, a wherein
1Be adjustment amplitude, the b that opens temperature
1It is the adjustment amplitude of closing temperature;
10). judge whether-C≤T-T
0≤+C, wherein C is a temperature departure precision,
If not, carry out following the 13 step,
If, control module storage setting at this moment current unlatching temperature value T at this moment
ONWith current closing temperature value T
OFF, and according to the unlatching of the refrigeration of this value this periodic refrigerating of control and/or heating and/or heating or close normal operation;
11). start clock, the timing of beginning check-verifying period;
12). relatively whether present clock exceeds check-verifying period T
a,
If not, it is rapid to repeat previous step,
If repeat above-mentioned the 5th step;
13) .T-T
0＜-C, wherein C is a temperature departure precision,
Current unlatching temperature value is set at T
ON+ a
2, current closing temperature value is set at T
OFF+ b
2After repeat above-mentioned the 5th step, a wherein
2Be adjustment amplitude, the b that opens temperature value
2It is the adjustment amplitude of closing temperature value.
The step whether this periodic refrigerating of above-mentioned detection and/or heating are in steady operational status is as follows:
1). calculate preceding N (N=1,2,3 of this periodic refrigerating and/or heating current period ...) the average temperature value T1～T in individual cycle
N
2) calculate above-mentioned average temperature value T1～T
NThe absolute difference Δ T of all any two values, i.e. Δ T
1=Shu T
1-T
2Shu, Δ T
2=Shu T
1-T
3Shu, Δ T
3=Shu T
1-T
4Shu ..., Δ T
(N-1)=Shu T
1-T
NShu, Δ T
N=Shu T
2-T
3Shu, Δ T
(N+1)=Shu T
2-T
4Shu, Δ T
(N+2)=Shu T
2-T
5Shu ..., Δ T
(N* (N-1))/2=Shu T
(N-1)-T
NShu;
3) whether calculate above-mentioned all absolute difference Δ T all less than C
0, C wherein
0For judging the error precision of steady operational status;
If, judge that then this periodic refrigerating and/or heating have entered steady operational status,
If not, then this periodic refrigerating and/or heating control module control refrigeration and/or heating by current unlatching temperature value and current closing temperature value again opening and closing once, promptly carry out one-period again after, repeat above-mentioned steps.
The N value in the top n cycle of this periodic refrigerating of aforementioned calculation and/or heating current period is 1～30; The precision of apparent temperature departure and deciding.
Above-mentioned check-verifying period T
aIt is 1 minute～10 years; Stability, reliability, life-span on refrigeration and/or heating itself decide.
The N value preferable range in the top n cycle of this periodic refrigerating of aforementioned calculation and/or heating current period is 2～20.
Above-mentioned check-verifying period T
aPreferable range be 1 hour～5 years.
The good effect of advantage of the present invention is, use the periodic refrigerating of this method and/or heating and can constantly adjust the unlatching temperature value and the closing temperature value of self refrigeration or heating combined equipment, thereby the difference that makes the average temperature value of this system and preset temperature value and can regularly be carried out verification automatically in desired temperature departure accuracy rating.Once unlatching temperature value and the closing temperature value of determining to reach temperature departure precision and this system, even stable refrigeration and/or the state that heats broken by non-refrigeration system factor (door of having put into thermal source, system as system frequently opened and closed and system's power down after recover again etc.), as long as the temperature of this system control gear moves under this gear, stored unlatching temperature value and closing temperature value all remain unchanged, and can guarantee that finally system temperature can be controlled in the desired error range.Make system reach best refrigeration or heating effect.This method universal performance is good, is fit to the temperature control of refrigerator, ice box, air conditioner, micro-wave oven, electric heater, water dispenser, electric cooker pot, electric oven, thermostatic chamber etc.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is the flow chart of one embodiment of the invention temperature-controlled process.
With BD-92E type refrigerator is example.
As shown in the figure; A kind of temperature-controlled process of refrigerator, adopt following steps:
1). the control program of this temperature-controlled process establishment is deposited in the computer chip of refrigerator control panel;
2). start refrigerator, its computer chip follow procedure is pressed the content executable operations of temperature-controlled process;
3). the temperature control of refrigerator is provided with 7 temperature gears, the corresponding set temperature value T of each gear
0, the closing temperature value T of simultaneously corresponding this compressor for refrigeration
OFFUnlatching temperature value T with compressor
ONThese data storages all have been stored in the computer chip; The position of these values and sensor, the thickness of heat-insulation layer etc. are all multifactor relevant, and the concrete numerical value of present embodiment is as follows:
| Set position | Setting value T 0(℃) | Set start value T ON(℃) | Set shutdown value T OFF(℃) |
| ????1 | ????-16 | ????-12 | ????-20 |
| ????2 | ????-17 | ????-13 | ????-21 |
| ????3 | ????-18 | ????-14 | ????-22 |
| ????4 | ????-19 | ????-15 | ????-23 |
| ????5 | ????-20 | ????-16 | ????-24 |
| ????6 | ????-22 | ????-18 | ????-26 |
| ????7 | ????-24 | ????-20 | ????-28 |
4). with manually setting current gear is 3 grades, and current unlatching temperature value is set at the unlatching temperature value-14 ℃ of this gear and closing temperature value-22 that current closing temperature value is set at this gear ℃;
5). this refrigerator computer chip is controlled its compressor opening and closing according to current closing temperature value and current unlatching temperature value, the operation one-period;
6). detect refrigerator and whether be in steady operational status,
If not, it is rapid then to repeat previous step,
If then carry out next step;
7). calculate the average temperature value T of current period;
8). the difference of the average temperature value T of calculating current period and the set temperature value-18 of current gear, i.e. T-T
0
9). design temperature departure precision is 0.5 ℃, judges whether T-18 ℃＞0.5 ℃,
If not, carry out next step,
If, the adjustment amplitude-1 ℃ of set opening 0 ℃ of the adjustment amplitude of temperature and closing temperature; Current unlatching temperature value is set at T
ON-0, current closing temperature value is set at T
OFF-1 ℃, after repeat above-mentioned the 5th step;
10). judge whether-0.5 ℃≤T-18 ℃≤+ 0.5 ℃,
If not, carry out following the 13 step,
If, storage setting at this moment current unlatching temperature value T at this moment
ONWith current closing temperature value T
OFF, and according to the unlatching of this value control compressor for refrigeration or close normal operation;
11). start clock, the timing of beginning check-verifying period;
12). relatively whether present clock exceeded check-verifying period 1000 hours, (establishing check-verifying period is 1000 hours)
If not, it is rapid to repeat previous step,
If repeat above-mentioned the 5th step;
13)．T-18℃＜-0．5℃，
If 0 ℃ of 1 ℃ of the adjustment amplitude of unlatching temperature, the adjustment amplitude of closing temperature; Current unlatching temperature value is set at T
ON+ 1 ℃, current closing temperature value is set at T
OFFRepeat above-mentioned the 5th step after+0.
The step whether the detection refrigerator is in steady operational status is as follows:
1). establish refrigerator 4 cycles of operation, calculate the average temperature value T1～T in preceding 4 cycles of refrigerator current period
4
2) calculate above-mentioned average temperature value T1～T
NThe absolute difference Δ T of all any two values,
Be Δ T
1=Shu T
1-T
2Shu, Δ T
2=Shu T
1-T
3Shu, Δ T
3=| T
1-T
4Shu, Δ T
4=Shu T
2-T
3Shu, Δ T
5=Shu T
2-T
4Shu, Δ T
6=Shu T
3-T
4Shu;
3) calculate above-mentioned all absolute difference Δ T
1～Δ T
6Whether all less than, 0.5 ℃ wherein 0.5 ℃ for judging the error precision of steady operational status;
If then this refrigerator enters steady operational status,
If not, then this refrigerator control panel control compressor again start-stop once, promptly carry out one-period again after, repeat above-mentioned steps.
The present invention judges refrigerating and heating systems such as refrigerator are provided with whether be in steady operational status under the temperature value in current gear institute correspondence, and this steady operational status is the unlatching temperature value T that presets at first at refrigerating and heating systems
ONWith closing temperature value T
OFFFollowing operation reaches.Refrigerating and heating systems such as refrigerator calculate the mean temperature T in the current period after reaching steady operational status, and T and system are controlled pairing set temperature value T under the gear at Current Temperatures
0Difference T-T
0Compare with desired temperature control precision C; Actual is that the mean temperature T that calculates in the current period is in set temperature value T
0On the error range that allows, among still under; According to the pairing unlatching temperature value of the residing diverse location difference current gear of regulating system of mean temperature T T
ONWith closing temperature value T
OFFSystem is by this adjusted unlatching temperature value T
ONWith closing temperature value T
OFFOriginal steady operational status is broken in operation; After the system of rejudging reaches new steady operational status, calculate mean temperature T in the current period in a manner described again with respect to set temperature value T
0Be in what position, adjust again and open temperature value T
ONWith closing temperature value T
OFFThe mean temperature T that approaches one by one in current period that circulates successively is in set temperature value T
0In the time of among the error range that allows, memory and storage unlatching temperature value T at this moment
ONWith closing temperature value T
OFF, later system moves according to this value under this gear.Start clock timing then, (concrete length was decided on reliability, stability and the life-span of using the concrete refrigerating and heating systems of this temperature temperature-controlled process) carries out a verification as stated above at regular intervals, the result who detects need adjust the unlatching value and the close value of the system that current gear remembered, variation has taken place and (has changed as cold-producing medium leakage, heating system power in then explanation refrigeration and/or heating itself, variation etc. has taken place in heat insulation effect), adjust according to the method described above and remember again and store.
When the temperature control gear of system changes, adjust as stated above and open temperature value and closing temperature value, the difference of the set temperature value of gear is in the scope that requires therewith for the average temperature value that makes system, and memory is unlatching temperature value and the closing temperature value of storage this moment also.
Judge whether system is in steady operational status several different methods is arranged, method of the present invention is to get current period N cycle (N=1 of continuous adjacent in the past, 2,3 ...), the N value is determined according to the periodic refrigerating of this method application and/or the accuracy of temperature control of heating, the big more running status that determines of N value more can be accurately near the absolute stability state, and required time of the stable running status of the N big more judgement of value simultaneously is long more.Calculate this N mean temperature T in each cycle in the cycle, get the mutual absolute difference of this N mean temperature then, establishing desired error precision is C
0If these absolute differences are during all less than this error precision, illustrative system is in steady operational status, if one of them absolute difference is during greater than error precision, then need the one-period that reruns, repeat above-mentioned computing, circulate successively up to all absolute differences during all less than error precision, system is in steady operational status.
Claims (6)
1. the temperature-controlled process of periodic refrigerating and/or heating is characterized in that adopting following steps:
1). the control program of this temperature-controlled process establishment is deposited in the memory of control module of periodic refrigerating and/or heating;
2). start this periodic refrigerating and/or heating, the content executable operations of temperature-controlled process in its control module follow procedure;
3). the temperature control unit of this periodic refrigerating and/or heating is provided with one or more temperature gears, the corresponding set temperature value T of each gear
0, the closing temperature value T of corresponding simultaneously this periodic refrigerating and/or heating
OFFUnlatching temperature value T with this periodic refrigerating and/or heating
ONThese data store in the memory;
4). judge the present located gear, current unlatching temperature value is set at the unlatching temperature value T of this gear
ONBe set at the closing temperature value T of this gear with current closing temperature value
OFF
5). this periodic refrigerating and/or heating control module are according to current unlatching temperature value T
ONWith current closing temperature value T
OFFControl its refrigeration and/or heating opening and closing, the operation one-period;
6). detect this periodic refrigerating and/or heating and whether be in steady operational status,
If not, it is rapid then to repeat previous step,
If then carry out next step;
7). calculate the average temperature value T of current period;
8). calculate the average temperature value T of current period and the set temperature value T of current gear
0Difference, i.e. T-T
0
9). judge whether T-T
0＞C, wherein C is a temperature departure precision,
If not, carry out next step,
If current unlatching temperature value is set at T
ON-a
1, current closing temperature value is set at T
OFF-b
1After repeat above-mentioned the 5th step, a wherein
1Be adjustment amplitude, the b that opens temperature
1It is the adjustment amplitude of closing temperature;
10). judge whether-C≤T-T
0≤+C, wherein C is a temperature departure precision,
If not, carry out following the 13 step,
If, control module storage setting at this moment current unlatching temperature value T at this moment
ONWith current closing temperature value T
OFF, and according to the unlatching of the refrigeration of this value this periodic refrigerating of control and/or heating and/or heating or close normal operation;
11). start clock, the timing of beginning check-verifying period;
12). relatively whether present clock exceeds check-verifying period T
a,
If not, it is rapid to repeat previous step,
If repeat above-mentioned the 5th step;
13) .T-T
0＜-C, wherein C is a temperature departure precision,
Current unlatching temperature value is set at T
ON+ a
2, current closing temperature value is set at T
OFF+ b
2After repeat above-mentioned the 5th step, a wherein
2Be adjustment amplitude, the b that opens temperature value
2It is the adjustment amplitude of closing temperature value.
2. the temperature-controlled process of periodic refrigerating according to claim 1 and/or heating is characterized in that: the step whether this periodic refrigerating of above-mentioned detection and/or heating are in steady operational status is as follows:
1). calculate preceding N (N=1,2,3 of this periodic refrigerating and/or heating current period ...) the average temperature value T1～T in individual cycle
N
2) calculate above-mentioned average temperature value T1～T
NThe absolute difference Δ T of all any two values,
Be Δ T
1=Shu T
1-T
2Shu, Δ T
2=Shu T
1-T
3Shu, Δ T
3=Shu T
1-T
4Shu ..., Δ T
(N-1)=Shu T
1-T
NShu, Δ T
N=Shu T
2-T
3Shu, Δ T
(N+1)=Shu T
2-T
4Shu, Δ T
(N+2)=Shu T
2-T
5Shu ..., Δ T
(N* (N-1))/2=Shu T
(N-1)-T
NShu;
3) whether calculate above-mentioned all absolute difference Δ T all less than C
0, C wherein
0For judging the error precision of steady operational status;
If, judge that then this periodic refrigerating and/or heating have entered steady operational status,
If not, then this periodic refrigerating and/or heating control module control refrigeration and/or heating by current unlatching temperature value and current closing temperature value again opening and closing once, promptly carry out one-period again after, repeat above-mentioned steps.
3. the temperature-controlled process of periodic refrigerating according to claim 2 and/or heating is characterized in that: the N value in the top n cycle of this periodic refrigerating of aforementioned calculation and/or heating current period is 1～30.
4. the temperature-controlled process of periodic refrigerating according to claim 1 and 2 and/or heating is characterized in that: above-mentioned check-verifying period T
aIt is 1 minute～10 years.
5. the temperature-controlled process of periodic refrigerating according to claim 3 and/or heating is characterized in that: the N value preferable range in the top n cycle of this periodic refrigerating of aforementioned calculation and/or heating current period is 2～20.
6. the temperature-controlled process of periodic refrigerating according to claim 4 and/or heating is characterized in that: the preferable range of above-mentioned check-verifying period Ta is 1 hour～5 years.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00111229 CN1116578C (en) | 2000-07-20 | 2000-07-20 | Temp control method of periodic refrigerating and/or heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00111229 CN1116578C (en) | 2000-07-20 | 2000-07-20 | Temp control method of periodic refrigerating and/or heating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1281138A true CN1281138A (en) | 2001-01-24 |
| CN1116578C CN1116578C (en) | 2003-07-30 |
Family
ID=4581157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00111229 Expired - Lifetime CN1116578C (en) | 2000-07-20 | 2000-07-20 | Temp control method of periodic refrigerating and/or heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1116578C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412462C (en) * | 2002-12-20 | 2008-08-20 | 北京众和达自控技术开发有限公司 | Comprehensive control method for heating furnace outlet temperature and device thereof |
| CN100449217C (en) * | 2005-09-02 | 2009-01-07 | 浙江工业大学 | Air conditioner controller with comfortable, energy-saving and healthy functions |
| CN100462637C (en) * | 2005-09-02 | 2009-02-18 | 浙江工业大学 | Energy-saving air conditioner controller capable of smoothing electricity consumption peak |
| CN102288444A (en) * | 2011-08-26 | 2011-12-21 | 海尔集团公司 | Refrigeration system test equipment and method for shortening test time of refrigeration system |
| CN102353229A (en) * | 2011-09-20 | 2012-02-15 | 合肥美的荣事达电冰箱有限公司 | Refrigerator compartment temperature control method, device and refrigerator with same |
| CN103261986A (en) * | 2010-12-15 | 2013-08-21 | 雀巢产品技术援助有限公司 | Systems and methods for testing and diagnosing malfunctions in a liquid dispenser |
| CN103518113A (en) * | 2011-04-29 | 2014-01-15 | 开利公司 | Enhanced economy refrigeration control system |
| CN104236233A (en) * | 2014-09-15 | 2014-12-24 | 合肥美的电冰箱有限公司 | Control method for refrigerator and refrigerator |
| CN104260740A (en) * | 2014-10-15 | 2015-01-07 | 南车南京浦镇车辆有限公司 | Start control method of train air conditioning units |
| CN108606638A (en) * | 2018-07-02 | 2018-10-02 | 芜湖美的厨卫电器制造有限公司 | I.e. hot equipment display methods, device, storage medium and instant-heating water drinking machine |
| CN111609662A (en) * | 2020-04-30 | 2020-09-01 | 珠海格力电器股份有限公司 | Refrigerator control method and device, storage medium and refrigerator |
| CN112817349A (en) * | 2020-12-31 | 2021-05-18 | 河北高达电子科技有限公司 | Black body temperature control method |
-
2000
- 2000-07-20 CN CN 00111229 patent/CN1116578C/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412462C (en) * | 2002-12-20 | 2008-08-20 | 北京众和达自控技术开发有限公司 | Comprehensive control method for heating furnace outlet temperature and device thereof |
| CN100449217C (en) * | 2005-09-02 | 2009-01-07 | 浙江工业大学 | Air conditioner controller with comfortable, energy-saving and healthy functions |
| CN100462637C (en) * | 2005-09-02 | 2009-02-18 | 浙江工业大学 | Energy-saving air conditioner controller capable of smoothing electricity consumption peak |
| CN103261986A (en) * | 2010-12-15 | 2013-08-21 | 雀巢产品技术援助有限公司 | Systems and methods for testing and diagnosing malfunctions in a liquid dispenser |
| CN103261986B (en) * | 2010-12-15 | 2016-08-10 | 雀巢产品技术援助有限公司 | For testing and diagnose the system and method for the fault in liquid distributor |
| CN103518113B (en) * | 2011-04-29 | 2016-06-29 | 开利公司 | Reinforced economy refrigeration control system |
| CN103518113A (en) * | 2011-04-29 | 2014-01-15 | 开利公司 | Enhanced economy refrigeration control system |
| CN102288444A (en) * | 2011-08-26 | 2011-12-21 | 海尔集团公司 | Refrigeration system test equipment and method for shortening test time of refrigeration system |
| CN102353229A (en) * | 2011-09-20 | 2012-02-15 | 合肥美的荣事达电冰箱有限公司 | Refrigerator compartment temperature control method, device and refrigerator with same |
| CN104236233A (en) * | 2014-09-15 | 2014-12-24 | 合肥美的电冰箱有限公司 | Control method for refrigerator and refrigerator |
| CN104260740A (en) * | 2014-10-15 | 2015-01-07 | 南车南京浦镇车辆有限公司 | Start control method of train air conditioning units |
| CN108606638A (en) * | 2018-07-02 | 2018-10-02 | 芜湖美的厨卫电器制造有限公司 | I.e. hot equipment display methods, device, storage medium and instant-heating water drinking machine |
| CN111609662A (en) * | 2020-04-30 | 2020-09-01 | 珠海格力电器股份有限公司 | Refrigerator control method and device, storage medium and refrigerator |
| CN112817349A (en) * | 2020-12-31 | 2021-05-18 | 河北高达电子科技有限公司 | Black body temperature control method |
| CN112817349B (en) * | 2020-12-31 | 2022-05-17 | 河北高达电子科技有限公司 | Black body temperature control method |
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| Publication number | Publication date |
|---|---|
| CN1116578C (en) | 2003-07-30 |
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