CN1766476A - Low temperature compensating method for refrigerator - Google Patents
Low temperature compensating method for refrigerator Download PDFInfo
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- CN1766476A CN1766476A CN 200410072516 CN200410072516A CN1766476A CN 1766476 A CN1766476 A CN 1766476A CN 200410072516 CN200410072516 CN 200410072516 CN 200410072516 A CN200410072516 A CN 200410072516A CN 1766476 A CN1766476 A CN 1766476A
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Abstract
The invention discloses a refrigerator low-temperature compensation method, which comprises the following steps: setting the optimum preserving temperature; starting the compressor and fan to supply cooling gas; detecting the temperature around and in the refrigerator; comparing the peripheral temperature with the optimum temperature; comparing the inner temperature with the upper limit value and lower limit value of optimum temperature if the peripheral temperature is higher than the optimum preserving temperature; staring or closing the compressor and fan according to the comparing result; supplying or stopping cooling gas; compensating the influence of refrigerator inner temperature through peripheral temperature if the peripheral temperature is lower than the optimum preserving temperature.
Description
Technical field
The present invention relates to a kind of low temperature compensating method of refrigerator.
Background technology
As shown in Figure 1, the HTHP refrigerant that compressor 1 is discharged, heat release when flowing through compressor 2, and be depressurized when flowing through capillary 3, become the refrigerant of low-temp low-pressure.
Absorb heat when the refrigerant of above-mentioned low-temp low-pressure is flowed through the evaporimeter 6 of refrigerating chamber 4, absorb heat during the evaporimeter 7 of the refrigerating chamber 5 of flowing through once more.Refrigerant behind the absorption heat is inhaled in the compressor 1 again.
The refrigerating evaporator 6 of refrigerating chamber and the refrigeration evaporator 7 of refrigerating chamber are direct-cooled plate-type evaporators.The refrigerating evaporator 6 of refrigerating chamber has enough big area, can encircle other faces (end face and bottom surface and two sides) except that the refrigerating chamber back side and door, after the position bending that dotted line is represented, form lattice shape, encircle refrigerating chamber end face and bottom surface and two sides.
The refrigeration evaporator 7 of refrigerating chamber, its area is compared very little with freezer evaporator, be arranged on the back side of refrigerating chamber.
Direct cooling refrigerator detects the freezer wall temperature that is provided with refrigeration evaporator 7, and according to the temperature of above-mentioned detection, the operation of control compressor 1.
That is, the refrigerating chamber of direct cooling refrigerator and temperature of refrigerating chamber are set to-18 ℃ and 3 ℃ respectively.And according to the freezer wall temperature, drive or stop compressor 1, keep refrigerating chamber and temperature of refrigerating chamber.
Now consult Fig. 2, the operation of compressor 1 control is described.
At first, the environment temperature of supposing refrigerator is for allowing 30 ℃ of refrigerator operate as normal, and the best storage temperature of refrigerator is 10 ℃.At this moment, shown in Fig. 2 (a), with 10 ℃ be the center, to compressor drive, stop control, allow refrigerator keep optimum temperature.Here, for cold air is fed to refrigerator inside, fan also works asynchronously with compressor.The action of Defrost heater and compressor is irrelevant, is in closed condition, up to entering defrosting mode.
As shown in Figure 3, the user selects to move SP1, and after setting best storage temperature SP2, refrigerator is opened compressor and fan SP3, supply cold air, and detect internal temperature of refrigerator SP4.
The lower limit temperature SP5 of above-mentioned detected refrigerator temperature and best storage temperature is compared, if the temperature inside the box reaches the lower limit temperature of storage temperature, then close compressor and fan have stopped cold air supply SP6.
After stopping the cold air supply, begin to detect the temperature SP7 in the refrigerator, when temperature reaches the higher limit SP8 of best storage temperature again, open compressor and fan, supply cold air.By carrying out said process repeatedly, preserve the food in the refrigerator.
If the temperature when best storage temperature is 10 ℃ around the refrigerator drops to 5 ℃, then as shown in Figure 2, even not drive compression machine and fan, the temperature in the refrigerator also can drop to 5 ℃, is difficult to keep the storage temperature of food.
Summary of the invention
In order to overcome the above-mentioned shortcoming that the current refrigerator control method exists, the invention provides a kind of low temperature compensating method of refrigerator, when the temperature around the refrigerator is lower than food storage temperature in the refrigerator, utilize Defrost heater and fan, the low temperature of compensation refrigerator inside, make food reach best storage temperature, no matter external temperature how, allows internal temperature of refrigerator keep best storage temperature.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of low temperature compensating method of refrigerator is characterized in that, comprises as the next stage: the user sets best storage temperature after selecting operation, opens compressor and fan, the stage of supply cold air; Detect the temperature around the refrigerator and the temperature of refrigerator inside, and the stage that environment temperature and best storage temperature are compared; Above-mentioned comparative result, if environment temperature is higher than best storage temperature, then higher limit and the lower limit to internal temperature and optimum temperature compares, and according to comparative result unlatching or close compressor and fan, supplies or stop the stage of cold air; Above-mentioned comparative result, if environment temperature is lower than best storage temperature, then higher limit and the lower limit to internal temperature and best storage temperature compares, and according to the comparative result heater, the compensation environment temperature is to the stage of the influence of internal temperature of refrigerator generation.
The low temperature compensating method of aforesaid refrigerator, if wherein environment temperature is lower than best storage temperature, then higher limit and the lower limit to internal temperature and best storage temperature compares, and according to the comparative result heater, the compensation environment temperature comprises following each stage to the stage of the influence that internal temperature of refrigerator produces; Promptly, if the internal temperature of refrigerator reaches the lower limit of best storage temperature, then close compressor and heater and fan, supply the stage of hot gas to refrigerator inside: after detecting internal temperature of refrigerator, if internal temperature of refrigerator reaches the higher limit of best storage temperature, then close heater and fan, cut off the stage of hot gas supply.
The low temperature compensating method of aforesaid refrigerator, if wherein environment temperature is higher than best storage temperature, then higher limit and the lower limit to internal temperature and optimum temperature compares, and according to comparative result unlatching or close compressor and fan, supply or the stage that stops cold air comprising following each stage: if internal temperature reaches the lower limit temperature of best storage temperature, then close compressor and fan stop the stage that cold air is supplied; If internal temperature reaches the higher limit of best storage temperature, then start compressor and fan, to the stage of refrigerator inside supply cold air.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the circulating circuit figure of existing direct cooling refrigerator.
Fig. 2 is the oscillogram of current refrigerator compressor control method.
Fig. 3 is the action flow chart of current refrigerator compressor control method.
Fig. 4 is the refrigerator temperature penalty method flow chart of the embodiment of the invention.
Fig. 5 is the oscillogram of low temp compensating method of the present invention.
The specific embodiment
As shown in Figure 4, refrigerator low temp compensating method of the present invention comprises following each stage: promptly, the user sets best storage temperature after selecting operation, opens compressor and fan, and the stage of supply cold air (SP11～SP13); Detect the temperature around the refrigerator and the temperature of refrigerator inside, and the stage (SP14, SP15) that environment temperature and best storage temperature are compared; Above-mentioned comparative result, if environment temperature is higher than best storage temperature, then higher limit and the lower limit to internal temperature and optimum temperature compares, and according to comparative result unlatching or close compressor and fan, supplies or stop the stage (SP21～SP25) of cold air; Above-mentioned comparative result, if environment temperature is lower than best storage temperature, then higher limit and the lower limit to internal temperature and best storage temperature compares, and according to the comparative result heater, and the stage of the influence that the compensation environment temperature produces internal temperature of refrigerator (SP16～SP20).Below, this is elaborated.
The user selects operation back (SP11), sets best storage temperature, opens compressor and fan, the stage (SP12, SP13) of supply cold air.
Detect the temperature around the refrigerator and the temperature (SP14) of refrigerator inside, and the stage (SP15) that environment temperature and best storage temperature are compared.
Above-mentioned comparative result (SP15), if environment temperature is higher than best storage temperature, then higher limit and the lower limit to internal temperature and optimum temperature compares, and according to comparative result unlatching or close compressor and fan, supplies or stop the stage (SP21～SP25) of cold air.That is, if internal temperature reaches the lower limit temperature of best storage temperature, then close compressor and fan stop cold air supply (SP21～SP22).If internal temperature reaches the higher limit of best storage temperature, then start compressor and fan, to refrigerator inside supply cold air (S23～S25).
Above-mentioned comparative result (S15), if environment temperature is lower than best storage temperature, then higher limit and the lower limit to internal temperature and best storage temperature compares, and according to the comparative result heater, the stage of the influence that the compensation environment temperature produces internal temperature of refrigerator (SP16～SP20).That is, if the internal temperature of refrigerator reaches the lower limit of best storage temperature, then close compressor and heater and fan are supplied hot gas (SP17) to refrigerator inside.Afterwards,, then close heater and fan if internal temperature of refrigerator reaches the higher limit of best storage temperature, and the supply of cut-out hot gas (SP18～SP20).
Afterwards, carry out above-mentioned action repeatedly, compensation refrigerator environment temperature is to the low temperature influence of internal temperature of refrigerator.
Below, the present invention will be described to consult Fig. 5.The environment temperature of supposing refrigerator is for allowing 30 ℃ of refrigerator operate as normal, and the best storage temperature of refrigerator inside is 10 ℃.At this moment, shown in Fig. 5 (a), with 10 ℃ be the center, open, close compressor, allow refrigerator keep optimum temperature.Here, in order to supply cold air to refrigerator inside, fan also works asynchronously with compressor.
If the outer temperature degree around the refrigerator is 5 ℃, even the internal temperature of the refrigerator also close compressor always of ceiling temperature that reaches best storage temperature then.At this moment, if internal temperature of refrigerator reaches lower limit temperature, then heater to refrigerator inside supply hot gas, allows the interior temperature of refrigerator keep optimum temperature.
Specifically, among the present invention,, then utilize the temperature in Defrost heater and the fan compensation refrigerator, no matter external temperature how, allows internal temperature of refrigerator keep best storage temperature if the temperature around the refrigerator is lower than the food preservation temperature.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
The invention effect
In sum, when the present invention is lower than refrigerator inside food preservation temperature in the refrigerator environment temperature, utilize the temperature in Defrost heater and the fan compensation refrigerator, no matter external temperature how, can allow internal temperature of refrigerator keep best storage temperature.
Claims (3)
1, a kind of low temperature compensating method of refrigerator is characterized in that, comprises as the next stage: the user sets best storage temperature after selecting operation, opens compressor and fan, the stage of supply cold air;
Detect the temperature around the refrigerator and the temperature of refrigerator inside, and the stage that environment temperature and best storage temperature are compared;
Above-mentioned comparative result, if environment temperature is higher than best storage temperature, then higher limit and the lower limit to internal temperature and optimum temperature compares, and according to comparative result unlatching or close compressor and fan, supplies or stop the stage of cold air;
Above-mentioned comparative result, if environment temperature is lower than best storage temperature, then higher limit and the lower limit to internal temperature and best storage temperature compares, and according to the comparative result heater, the compensation environment temperature is to the stage of the influence of internal temperature of refrigerator generation.
2, the low temperature compensating method of refrigerator according to claim 1, it is characterized in that if environment temperature is lower than best storage temperature, then higher limit and the lower limit to internal temperature and best storage temperature compares, and according to the comparative result heater, the compensation environment temperature comprises following each stage to the stage of the influence that internal temperature of refrigerator produces; That is,
If the internal temperature of refrigerator reaches the lower limit of best storage temperature, then close compressor and heater and fan, to the stage of refrigerator inside supply hot gas:
After detecting internal temperature of refrigerator,, then close heater and fan, cut off the stage of hot gas supply if internal temperature of refrigerator reaches the higher limit of best storage temperature.
3, the low temperature compensating method of refrigerator according to claim 1, it is characterized in that if environment temperature is higher than best storage temperature, then higher limit and the lower limit to internal temperature and optimum temperature compares, and, supply or stage of stopping cold air comprises following each stage according to comparative result unlatching or close compressor and fan:
If internal temperature reaches the lower limit temperature of best storage temperature, then close compressor and fan stop the stage that cold air is supplied;
If internal temperature reaches the higher limit of best storage temperature, then start compressor and fan, to the stage of refrigerator inside supply cold air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410072516 CN1766476B (en) | 2004-10-27 | 2004-10-27 | Low temperature compensating method for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410072516 CN1766476B (en) | 2004-10-27 | 2004-10-27 | Low temperature compensating method for refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN1766476A true CN1766476A (en) | 2006-05-03 |
| CN1766476B CN1766476B (en) | 2010-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410072516 Expired - Fee Related CN1766476B (en) | 2004-10-27 | 2004-10-27 | Low temperature compensating method for refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706069A (en) * | 2012-06-14 | 2012-10-03 | 海信容声(广东)冰箱有限公司 | Refrigerator and control method for temperature-changing chamber of refrigerator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2392152Y (en) * | 1999-10-15 | 2000-08-16 | 广东科龙冰箱有限公司 | Automatic temp. compensation device for refrigerator |
| CN1189713C (en) * | 2002-01-31 | 2005-02-16 | 乐金电子(天津)电器有限公司 | Refrigerating system |
-
2004
- 2004-10-27 CN CN 200410072516 patent/CN1766476B/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706069A (en) * | 2012-06-14 | 2012-10-03 | 海信容声(广东)冰箱有限公司 | Refrigerator and control method for temperature-changing chamber of refrigerator |
| CN102706069B (en) * | 2012-06-14 | 2014-12-10 | 海信容声（扬州）冰箱有限公司 | Refrigerator and control method for temperature-changing chamber of refrigerator |
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| Publication number | Publication date |
|---|---|
| CN1766476B (en) | 2010-04-28 |
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Owner name: TAIZHOU LG ELECTRONICS FREEZER CO., LTD. Free format text: FORMER OWNER: LG ELECTRONICS ( TIANJIN ) ELECTRICAL APPLIANCES CO., LTD. Effective date: 20091120 |
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Effective date of registration: 20091120 Address after: 2, Yingbin Road, Taizhou economic and Technological Development Zone, Jiangsu, Taizhou Province, China: 225300 Applicant after: Taizhou LG Electronics Refrigerator Co., Ltd. Address before: Beichen District, Tianjin Xing Dian Highway Code: 300402 Applicant before: Lejin Electronic and Electric Appliance Co., Ltd. (Tianjin) |
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Granted publication date: 20100428 Termination date: 20111027 |