CN1198108C - Control method for preventing freezer chamber of refrigerator from weakly refrigerating - Google Patents
Control method for preventing freezer chamber of refrigerator from weakly refrigerating Download PDFInfo
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- CN1198108C CN1198108C CN 02100796 CN02100796A CN1198108C CN 1198108 C CN1198108 C CN 1198108C CN 02100796 CN02100796 CN 02100796 CN 02100796 A CN02100796 A CN 02100796A CN 1198108 C CN1198108 C CN 1198108C
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Abstract
The present invention discloses a control method for preventing weak refrigeration of a refrigerating room for a refrigerator, which comprises the following specific steps: (1) the set temperature of the refrigerating room is subdivided into specific ranges according to the specification of a product; (2) a compressor is driven according to the currently set temperature of the refrigerating room, and the stage of detecting that the compressor stops work is carried out; (3) when the time that the compressor stops working continuously exceeds specific time, the reference set temperature of the refrigerating room is downwards adjusted on the basis of the step (1) and the step (2) phase by phase; and when the time that the compressor stops working is within the specific time, the current reference set temperature of the refrigerating room continues to be maintained. The present invention has the advantages that as the air temperature outside the refrigerator descends, the reference set temperature of the refrigerating room is downwards adjusted by a microcomputer without need of a temperature sensor for the refrigerating room and an outside air temperature sensor, and the situation that the temperature of the refrigerating room rises when the ambient temperature of the refrigerator is low can be prevented. Therefore, the cost of products is reduced, and the situation that food in the storage room of the refrigerator decays is prevented.
Description
Technical field
The invention relates to the invention of refrigerator aspect, is about preventing the invention of control method aspect cold a little less than the freezer chamber of refrigerator furtherly.
Background technology
Refrigerator is to supply cold air in storage space, makes the interior food of storage space keep the freezing machine of uniform temperature.
The cold air of refrigerator produces cold air by the driving of freeze cycle, and freeze cycle comprises compressor, condenser, capillary and evaporimeter.Medium by above-mentioned inscape to the greatest extent row circulation carry out phase inversion, carry out heat exchange with the air of circulation refrigerator storage space, generate cold air.
Fig. 1 is the structural representation of prior art refrigerator.As shown in Figure 1, independently in the refrigerator, the cooling fan that is arranged on refrigerator inside is transported to refrigerating chamber and refrigerating chamber with cold air at refrigerating chamber and refrigerating chamber.Be connected with fan electromotor 30 on the cooling fan 20.Fan electromotor 30 is the drive sources that drive above-mentioned cooling fan 20.
The compressor 10 that is arranged on the refrigerator bottom is to the inner supply of refrigerator cold air.
One side of refrigerating chamber and refrigerating chamber is respectively arranged with refrigerator temperature sensor 50 and the freezer temperature sensor 60 that detects the casing internal temperature.
In addition, be connected with extraneous gas temperature sensor 70 on the microcomputer 40,70 perception of extraneous gas temperature sensor and the extraneous gas temperature around microcomputer 40 provides.
The refrigerator internal temperature that microcomputer 40 is selected with the extraneous gas temperature that reads from extraneous gas temperature sensor 70 and consumer (a little less than, weak/moderate, moderate, moderate/strong, strong etc.) be the basis, set the best refrigerator internal temperature of working as precondition.Microcomputer 40 is controlled the running of compressor 10, cooling fan and fan electromotor 30 according to the best refrigerator internal temperature of setting (hereinafter to be referred as " benchmark design temperature ").
The cold air growing amount is by microcomputer 40, is that the basis is controlled with the data that read from refrigerator temperature sensor 50.
If when the temperature of refrigerator temperature sensor 50 perception was lower than benchmark design temperature, above-mentioned microcomputer 40 stopped the driving of compressor 10 and fan electromotor 30.On the contrary, if when the temperature of refrigerator temperature sensor 50 perception is higher than benchmark design temperature, microcomputer 40 drives compressor 10 and fan electromotor 30, produces cold air to the refrigerator inner loop.
As mentioned above, refrigerator is that the basis is controlled with the temperature of refrigerator temperature sensor 50 perception, so be called refrigerating chamber control centre refrigerator.That is to say that refrigerating chamber control centre refrigerator is that the center is controlled with the box house temperature of refrigerating chamber, to refrigerating chamber and refrigerating chamber supply cold air.
On the one hand, when the environment temperature of refrigerator is hanged down,, need not to the inner supply of electric refrigerator housing body cold air because extraneous gas temperature and refrigerator internal temperature do not have temperature difference.That is to say, when the refrigerator environment temperature is very low, need not, so microcomputer 40 drive compression machine 10 not to the inner supply of electric refrigerator housing body cold air.
In addition, the temperature of general refrigerating chamber is lower relatively than the temperature of refrigerating chamber, thus because temperature of refrigerating chamber is in the low-temperature condition freeze cycle and quits work, also just stopped to the inside of refrigerating chamber supply cold air, so cause freezer temperature to rise.
That is to say that the refrigerating chamber box house temperature of refrigerating chamber control centre refrigerator rises when the temperature around the refrigerator is low temperature, finally cause the state of cooling in the refrigerating chamber to be in weak cold state.
With reference to the accompanying drawings, to the prior art of refrigerating chamber control centre refrigerator prevent refrigerating chamber a little less than cold control method be elaborated.
Fig. 2 points out out prior art to prevent the workflow diagram of the control method that refrigerating chamber is weak cold.Table 1 is to prevent that according to external temperature the cold air that freezer temperature rises from dropping into the table of the condition and the condition of releasing.RT represents the refrigerator external temperature in the table 1.
Table 1
| Distinguish | RT＜=8 degree Celsius | 8 degree＜=RT Celsius＜=12.5 degree Celsius | 12.5 degree＜=RT Celsius＜=18 degree Celsius | 18 degree＜=RT Celsius＜=25 degree Celsius | 25 degree＜=RT Celsius | |
| The RT sensing range | RT＜=9 degree Celsius | 9 degree＜=RT Celsius＜=13.5 degree Celsius | 11.5 degree＜=RT Celsius＜=19 degree Celsius | 17 degree＜=RT Celsius＜=26 degree Celsius | 24 degree＜=RT Celsius | |
| Input condition (refrigerating chamber sensor temperature) | Subzero 11.5 degree Celsius ↑ | Subzero 10.5 degree Celsius ↑ | Subzero 9.5 degree Celsius ↑ | Subzero 7.5 degree Celsius ↑ | Subzero 6.5 degree Celsius ↑ | |
| Condition subsequent (refrigerating chamber sensor temperature) | A little less than | Arrive Celsius 2.5 when spending | Arrive Celsius 3.5 when spending | When arriving four degrees celsius | Arrive Celsius 4.5 when spending | |
| Weak/moderate | Arrive Celsius subzero 0.5 when spending | Arrive Celsius 1 when spending | Arrive Celsius 2 when spending | Arrive Celsius 3 when spending | ||
| Moderate | Arrive Celsius subzero 0.5 when spending | Arrive Celsius 1 when spending | Arrive Celsius 2 when spending | Arrive Celsius 2.5 when spending | ||
| Moderate/strong | Arrive Celsius subzero 0.5 when spending | Arrive Celsius 0 when spending | Arrive Celsius 0 when spending | Arrive Celsius 0 when spending | |
| By force | Arrive Celsius subzero 1.5 when spending | Arrive Celsius 1.5 when spending | Arrive Celsius subzero 1.5 when spending | Arrive Celsius subzero 1.5 when spending |
The extraneous gas temperature of said external gas temperature sensor 70 perception is input in the microcomputer 40, and then the extraneous gas sensing range thought of microcomputer 40 has just been decided to get off.
As shown in Figure 2, the 202nd stage was that specified temp and extraneous gas temperature that microcomputer 40 is thought are compared, the specified temp of being familiar with than microcomputer 40 when the extraneous gas temperature is low, entered for the 204th stage, the 204th stage was that the specified temp that the freezer temperature of freezer temperature sensor institute perception and microcomputer 40 are thought is compared.
The 206th stage was the specified temp be familiar with than microcomputer 40 when freezer temperature in the 204th stage when high, met the weak cold-patch of refrigerating chamber and repaid function and drop into condition, and compressor is driven.
For example, as shown in table 1, the specified temp that above-mentioned microcomputer 40 is familiar with is 9 the degree Celsius and extraneous gas temperature is that 9 degree Celsius are when following, the specified temp that microcomputer 40 is familiar be Celsius subzero 11.5 the degree and freezer temperature be Celsius subzero 11.5 the degree more than, then satisfy the weak cold-patch of refrigerating chamber and repay function input condition, drive compression machine 10.
Driving freeze cycle by compressor 10 brings into operation, the result of freeze cycle operation, and the driving cooling fan 20 by fan electromotor is rotated, and the cold air that produces is evenly carried in the refrigerating chamber casing.
The weak cold-patch of refrigerating chamber is repaid the working time that the function input needs a minimum, adopts in the present invention 1 minute, and the 208th stage was the working time that judges whether to satisfy above-mentioned minimum.
Satisfy the weak cold-patch of refrigerating chamber and repaid function input condition, in refrigerating chamber, supply cold air by freeze cycle, but the cold air that needs to supply has had a upper limit in refrigerating chamber, needed to remove the input that the weak cold-patch of refrigerating chamber is repaid function after the freeze cycle running to a certain degree.
The releasing that the weak cold-patch of refrigerating chamber is repaid function is to control by the refrigeration indoor temperature.That is to say that the temperature that descends in the refrigerator temperature sensor 50 perception refrigerating chambers is input to the temperature of refrigerating chamber of perception in the microcomputer 40.
The 210th stage was that microcomputer 40 judges whether the temperature of the current refrigerating chamber of 50 perception of refrigerator temperature sensor arrives the temperature of refrigerating chamber of having set.The 212nd stage was if arrived the temperature of refrigerating chamber of having set, just stopped the running of compressor 10, stopped to supply in refrigerating chamber cold air.
For example, shown in above-mentioned table 1, the temperature of refrigerating chamber arrives subzero 11.5 degree Celsius, and the temperature of refrigerating chamber drops to subzero 0.5 degree Celsius (the box house temperature that the consumer selects be weak/when moderate), freeze cycle will be interrupted, and the weak cold-patch of refrigerating chamber is repaid function and will be disengaged.
But the weak cold control method of refrigerating chamber that prevents with prior art of said structure has following shortcoming.
Preventing in the control method cold a little less than the refrigerator of prior art, extraneous gas temperature sensor perception extraneous gas temperature, but heat generating components such as transformer, heater are arranged around the extraneous gas temperature sensor.Because the heating of above-mentioned heat generating components causes the extraneous gas temperature of extraneous gas temperature sensor perception to lack the degree of accuracy.
In addition, prevent that in prior art in the control method cold a little less than the refrigerator, refrigerator temperature sensor 50, freezer temperature sensor 60 and extraneous gas temperature sensor 70 are combined into complicated decimal system.The cost that causes product that appends of freezer temperature sensor 60 and extraneous gas temperature sensor 70 rises.
Summary of the invention
Technical problem to be solved by this invention is, provide have a following effect prevent the weak cold control method of freezer chamber of refrigerator.Need not to append freezer temperature sensor and extraneous gas temperature sensor,, around refrigerator, be in the temperature that can prevent refrigerating chamber under the low-temperature condition and rise by the control of microcomputer.
The technical solution adopted in the present invention is: a kind of weak cold control method of freezer chamber of refrigerator that prevents comprises following concrete steps:
(1) refrigerating chamber benchmark design temperature is subdivided into stage of particular range according to the specification of product;
(2) whether judge temperature of refrigerating chamber greater than design temperature according to the temperature of current setting,, move freeze cycle, and keep current refrigerating chamber benchmark design temperature, otherwise detect the stage of compressor off-air time greater than then forcing the drive compression machine;
When (3) off-air time of compressor surpasses special time continuously, force the drive compression machine, and on the basis of previous stage, adjust refrigerating chamber benchmark design temperature downwards by stage ground, if the compressor dwell time is in special time the time, the stage of continuing to keep current refrigerating chamber benchmark design temperature.
Below the present invention with said structure is prevented that the effect that cold control method is brought a little less than the freezer chamber of refrigerator from describing.
Descend with refrigerator extraneous gas temperature, microcomputer is reduced refrigerating chamber benchmark design temperature, need not use freezer temperature sensor and extraneous gas temperature sensor, and can prevent in the refrigerator environment temperature it is that freezer temperature rises under the low temperature environment, so reduced the cost of product and prevented that food rots in the refrigerator storage room.
Description of drawings
The structural representation of Fig. 1 prior art refrigerator,
The weak cold workflow diagram that prevents control method of Fig. 2 prior art refrigerating chamber,
Fig. 3 is the weak cold refrigerator structural representation that prevents the refrigerator example of refrigerating chamber of the present invention,
Fig. 4 is the weak cold workflow diagram that prevents control method of example refrigerating chamber of the present invention,
Fig. 5 is that the weak cold releasing temperature of refrigerating chamber of refrigerating chamber that prevents of the present invention is set the workflow diagram of pattern.
Wherein:
10. compressor 20. cooling fans 30. fan electromotors 40. microcomputers
50. refrigerator temperature sensor 60. freezer temperature sensors 70. extraneous gas temperature sensors
Below in conjunction with Fig. 3, Fig. 4 and Fig. 5, example of the present invention is elaborated.
As shown in Figure 3, the cooling fan 20 that is arranged on refrigerator inside is transported to refrigerating chamber and refrigerating chamber with cold air.Be connected with fan electromotor 30 on the cooling fan 20.Fan electromotor 30 is the drive sources that drive cooling fan 20.
The compressor 10 that is arranged on the refrigerator bottom is to the inner supply of refrigerator cold air.
One side of refrigerating chamber is provided with the refrigerator temperature sensor 50 that detects the casing internal temperature.
Below, control method cold a little less than the refrigerating chamber that prevents refrigerating chamber control centre refrigerator is elaborated.
Be set with the benchmark design temperature of refrigerating chamber on the microcomputer 40.When design temperature hangs down than the actual temperature of refrigerating chamber, the driving of microcomputer 40 control compressors 10, operation freeze cycle.The indoor temperature of refrigerating chamber is input in the microcomputer 40 by refrigerator temperature sensor 50 perception.
As shown in Figure 4, in the 412nd stage, refrigerating chamber benchmark design temperature in the current microcomputer 40 is set at 3.0 ± 1.0 degree Celsius.Design temperature is the holding temperature of electric refrigerator housing body inside in summer.That is to say that summer, external temperature was high temperature (30 degree Celsius approximately), and the switching frequency height of refrigerating-chamber door, the temperature of box house also can rise.
In the 414th stage, the temperature of refrigerating chamber of 50 perception of refrigerator temperature sensor and refrigerating chamber benchmark design temperature 3.0 ± 1.0 degree Celsius are compared.If when temperature of refrigerating chamber was higher than refrigerating chamber benchmark design temperature 3.0 ± 1.0 degree Celsius, the driving operation freeze cycle of microcomputer 40 control compressors 10 turned back to for the 412nd stage then.The cold air that produces along with the running of freeze cycle is to the box house supply of refrigerating chamber and refrigerating chamber.
If when temperature of refrigerating chamber was lower than refrigerating chamber benchmark design temperature 3.0 ± 1.0 degree Celsius, because the temperature of refrigerating chamber is in suitable temperature, compressor did not drive.
The weak cold control method of refrigerating chamber that prevents when below current environment temperature being dropped to temperature in spring and autumn (15 degree Celsius approximately) is elaborated.
Because environment temperature descends, the temperature of refrigerating chamber also and then descends.The temperature of refrigerating chamber of 50 perception of refrigerator temperature sensor is lower than benchmark design temperature 3.0 ± 1.0 degree Celsius of the refrigerating chamber that microcomputer 40 sets, so compressor 10 does not drive.
The 416th stage, judge that compressor 10 does not drive at certain hour (being set at 50 minutes in this example), when driving time was not greater than 50 minutes, entered for the 418th stage, microcomputer 40 is forced drive compression machine 10 operation freeze cycle, and entered for the 420th stage, the benchmark design temperature of refrigerating chamber is lowered to 1.5 ± 0.5 degree Celsius.
In the 422nd stage, the temperature of refrigerating chamber of 50 perception of refrigerator temperature sensor and refrigerating chamber benchmark design temperature 1.5 ± 0.5 degree Celsius are compared.In the 422nd stage, if above-mentioned temperature of refrigerating chamber when high, then turned back to for the 418th stage than refrigerating chamber benchmark design temperature 1.5 ± 0.5 degree Celsius, the driving operation freeze cycle of microcomputer 40 control compressors 10.The cold air that produces along with the running of freeze cycle is to the box house supply of refrigerating chamber and refrigerating chamber.
That is to say, owing to as mentioned above the benchmark design temperature of refrigerating chamber is lowered to 1.5 ± 0.5 degree Celsius, so even environment temperature descends, microcomputer 40 still can drive compression machine 10, to refrigerating chamber supply cold air, prevent that the temperature of refrigerating chamber box house from rising.
The weak cold control method that prevents of refrigerating chamber when below current environment temperature being continued to drop to winter temperature (3 degree Celsius approximately) is elaborated.
In the 424th stage, judge whether the time that compressor 10 stops to drive in first circulation surpasses certain hour (being set at 50 minutes in this example).
In the judged result in the 424th stage, during the stopping driving time and surpass more than 50 minutes of compressor 10, entered for the 426th stage, microcomputer 40 drive compression machines 10 operation freeze cycle are over up to first circulation.Otherwise, entered for the 428th stage, if in 50 minutes, when compressor 10 drives, still keep benchmark design temperature 1.5 ± 0.5 degree Celsius of former refrigerating chamber.One of them circulation is the base unit of microcomputer 40 control compressors 10.
In the 430th stage, judge whether first circulation ends.If the result of judgement place in above-mentioned the 430th stage does not finish first circulation, then got back to for the 424th stage, if the result who judges in above-mentioned the 430th stage has finished first circulation, then enter into second circulation.
In the 432nd stage, judge whether the time that compressor 10 stops to drive in second circulation surpasses certain hour (being set at 50 minutes in this example).Decimal system in judged result second circulation in the 432nd stage is identical with the situation of first circulation.
That is to say that in the judged result in the 432nd stage, during the stopping driving time and surpass more than 50 minutes of compressor 10, entered for the 434th stage, microcomputer 40 drive compression machines 10 operation freeze cycle are over up to second circulation.Otherwise, entered for the 436th stage, if in 50 minutes, when compressor 10 drives, still keep benchmark design temperature 1.5 ± 0.5 degree Celsius of former refrigerating chamber.
In the 438th stage, judge whether second circulation ends.If the result who judges in the 438th stage does not finish second circulation, then got back to for the 432nd stage, if the result who judges in above-mentioned the 438th stage has finished second circulation, then enter into the next stage.
If the result who judges in above-mentioned the 438th stage has finished second circulation, then enter into the 3rd circulation.
In the 440th stage, judge whether the time that compressor 10 stops to drive surpasses certain hour (being set at 50 minutes in this example).
In the judged result in the 440th stage, during the stopping driving time and surpass more than 50 minutes of compressor 10, entered for the 442nd stage, microcomputer 40 drive compression machines 10 operation freeze cycle are over up to the 3rd circulation.Entered for the 444th stage, the benchmark design temperature of refrigerating chamber is lowered to 0.5 ± 0.35 degree Celsius.
That is to say that compressor 10 does not drive in the 3rd circulation, mean that external temperature is very low, so the refrigeration indoor temperature is very low, freeze cycle is out of service.So in the 3rd cyclic process, when compressor 10 did not still drive, microcomputer 40 was not only forced drive compression machine 10, also the design temperature of refrigerating chamber was adjusted downwards.
In the judged result in the 440th stage, if when inner compressor 10 drove in 50 minutes, entered for the 446th stage, still keep benchmark design temperature 1.5 ± 0.5 degree Celsius of former refrigerating chamber.
Then, since the 4th circulation the 3rd cyclic process (the 440th stage) repeatedly.That is to say that compressor surpasses certain hour (being set at 50 minutes in this example) and do not drive, then compressor 10 will be forced to drive, and the basic design temperature of microcomputer 40 refrigerating chambers will be adjusted to 0.5 ± 0.35 degree Celsius, control freeze cycle downwards.
If when inner compressor 10 drove in 50 minutes, still keep the benchmark design temperature pattern of current refrigerating chamber.
The control method that temperature of refrigerating chamber when below with reference to Fig. 5 external temperature being risen is set pattern is elaborated.
When rising, external temperature, temperature of refrigerating chamber setting pattern is controlled by the running of compressor 10.
The 500th stage, the refrigerating chamber benchmark design temperature chamber that current microcomputer is set 0.5 ± 0.35 degree Celsius.The said reference design temperature is a holding temperature in the refrigerating chamber in winter.That is to say that winter, external temperature was low temperature (5 degree Celsius approximately), so refrigerating chamber benchmark design temperature is set in 0.5 ± 0.35 degree Celsius.
In the 510th stage, refrigerating chamber box house temperature and above-mentioned refrigerating chamber benchmark design temperature 0.5 ± 0.35 degree Celsius are compared.
The result who judges in above-mentioned the 510th stage when temperature of refrigerating chamber of 50 perception of refrigerator temperature sensor is higher than refrigerating chamber benchmark design temperature 0.5 ± 0.35 degree Celsius, entered for the 512nd stage, microcomputer 40 drive compression machines 10.
Driving operation freeze cycle by compressor 10, the cold air that the running by freeze cycle produces is supplied to refrigerating chamber and refrigerating chamber.
The result who judges in the 510th stage when the temperature of refrigerating chamber of 50 perception of refrigerator temperature sensor is lower than refrigerating chamber benchmark design temperature 0.5 ± 0.35 degree Celsius, illustrates that the temperature of refrigerating chamber is in the suitable temperature range, and compressor 10 does not drive.
Control method when below environment temperature being risen to the temperature (Celsius approximately 15 degree) in season in spring and autumn describes.Because environment temperature rises, the temperature of refrigerating chamber also and then rises.So the refrigerating chamber benchmark design temperature height that the temperature of refrigerating chamber of 50 perception of refrigerator temperature sensor sets than microcomputer 40 is so compressor 10 drives.
In the 514th stage, when being driven owing to refrigerating chamber box house temperature rising compressor, the continuous running rate of six circulations of METHOD FOR CONTINUOUS DETERMINATION compressor 10 judges whether the continuous running rate of above-mentioned 6 circulations is higher than 25%.
If the judged result in above-mentioned the 514th stage, the continuous running rate of 6 circulations is higher than 25%, then enters for the 516th stage, and microcomputer 40 will be transferred to 1.5 ± 0.5 degree Celsius on the refrigerating chamber benchmark design temperature.Then, entered for 518 stages.
That is to say, because the refrigerating chamber fiducial temperature that refrigerating chamber box house temperature and microcomputer 40 set forms big difference, so drive compression machine 10, when the continuous running rate of 6 circulations of compressor 10 is higher than 25%, surfusion can occur, refrigerating chamber benchmark design temperature need be raised.
If the judged result in the 514th stage, the continuous running rate of 6 circulations is lower than 25%, then enters for the 500th stage, and refrigerating chamber benchmark design temperature is still kept original refrigerating chamber benchmark design temperature 0.5 ± 0.35 degree Celsius.
In 518 stages, judge that whether the refrigerating chamber temperature inside is greater than benchmark design temperature 1.5 ± 0.5 degree Celsius.Being, entering 520 stage drive compression machines, is not then to turn back to for the 516th stage.
Control method when below environment temperature being risen to the temperature (Celsius approximately 30 degree) in summer describes.Because environment temperature rises, the temperature of refrigerating chamber also and then rises.So the refrigerating chamber benchmark design temperature height that the temperature of refrigerating chamber of 50 perception of refrigerator temperature sensor sets than microcomputer 40 is so compressor 10 drives the formation freeze cycle.
In the 522nd stage, when being driven owing to refrigerating chamber box house temperature rising compressor, the continuous running rate of six circulations of METHOD FOR CONTINUOUS DETERMINATION compressor 10 judges whether the continuous running rate of above-mentioned 6 circulations is higher than 40%.
If the judged result in the 522nd stage, the continuous running rate of 6 circulations is higher than 40%, enters for the 524th stage, and microcomputer 40 will be transferred to 3.0 ± 1.0 degree Celsius on the refrigerating chamber benchmark design temperature.
If the judged result in the 522nd stage, the continuous running rate of 6 circulations is lower than 40%, enters for the 526th stage, and refrigerating chamber benchmark design temperature is still kept original refrigerating chamber benchmark design temperature 1.5 ± 0.5 degree Celsius.
As mentioned above, the process that also and then adjusts upward along with environment temperature rising refrigerating chamber benchmark design temperature is the cold process that prevents process (adjusting the control procedure of refrigerating chamber benchmark design temperature downwards) a little less than the releasing refrigerating chamber.
Claims (4)
1. one kind prevents the weak cold control method of freezer chamber of refrigerator, it is characterized in that concrete steps of the present invention are as follows:
(1) refrigerating chamber benchmark design temperature is subdivided into stage of particular range according to the specification of product;
(2) whether judge temperature of refrigerating chamber greater than design temperature according to the temperature of current setting,, move freeze cycle, and keep current refrigerating chamber benchmark design temperature, otherwise detect the stage of compressor off-air time greater than then forcing the drive compression machine;
When (3) off-air time of compressor surpasses special time continuously, force the drive compression machine, and on the basis of previous stage, adjust refrigerating chamber benchmark design temperature downwards by stage ground, if the compressor dwell time is in special time the time, the stage of continuing to keep current refrigerating chamber benchmark design temperature.
2. the weak cold control method of freezer chamber of refrigerator that prevents according to claim 1 is characterized in that the described stage of adjusting refrigerating chamber benchmark design temperature downwards by stage ground also comprises as the next stage:
(1) refrigerating chamber benchmark design temperature is under the T1 pattern, and when compressor did not drive in special time, compressor was forced to drive and refrigerating chamber benchmark design temperature is lowered to the stage of T2 pattern;
(2) refrigerating chamber benchmark design temperature is under the T2 pattern, when compressor does not drive in special time in first circulation and second circulation, compressor is forced to drive, when compressor does not still drive in special time after the 3rd circulation, compressor is forced to drive, and refrigerating chamber benchmark design temperature is lowered to the stage of T3 pattern;
3. the weak cold control method of freezer chamber of refrigerator that prevents according to claim 1 is characterized in that described refrigerating chamber benchmark design temperature T1 is 3.0 ± 1.0 degree Celsius; Refrigerating chamber benchmark design temperature T2 is 1.5 ± 0.5 degree Celsius; Refrigerating chamber benchmark design temperature T3 is 0.5 ± 0.35 degree Celsius.
4. describedly prevent cold control method a little less than the freezer chamber of refrigerator according to claim 1 or 2 or 3, it is characterized in that the special time that described compressor does not drive is 50 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02100796 CN1198108C (en) | 2002-01-29 | 2002-01-29 | Control method for preventing freezer chamber of refrigerator from weakly refrigerating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02100796 CN1198108C (en) | 2002-01-29 | 2002-01-29 | Control method for preventing freezer chamber of refrigerator from weakly refrigerating |
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| CN1435665A CN1435665A (en) | 2003-08-13 |
| CN1198108C true CN1198108C (en) | 2005-04-20 |
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| CN 02100796 Expired - Fee Related CN1198108C (en) | 2002-01-29 | 2002-01-29 | Control method for preventing freezer chamber of refrigerator from weakly refrigerating |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104344678B (en) * | 2013-07-31 | 2018-05-08 | 博西华电器（江苏）有限公司 | Refrigerating appliance and its dehumanization method |
| CN109900062B (en) * | 2019-04-04 | 2021-07-20 | 湖北美的电冰箱有限公司 | Ambient temperature determination method, computer-readable storage medium, and refrigeration device |
| CN111721066A (en) * | 2020-05-25 | 2020-09-29 | 南京创维家用电器有限公司 | Temperature detection control method for freezing chamber of refrigerator |
| CN115468372A (en) * | 2022-08-31 | 2022-12-13 | 湖北美的电冰箱有限公司 | Refrigerator temperature control method and single-temperature-control air-cooled refrigerator |
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Assignee: Taizhou LG Electronics Refrigerator Co., Ltd. Assignor: Lejin Electronic and Electric Appliance Co., Ltd. (Tianjin) Contract fulfillment period: 2005.12.30 to 2015.12.29 contract change Contract record no.: 2008320000752 Denomination of invention: Control method for preventing freezer chamber of refrigerator from weakly refrigerating Granted publication date: 20050420 License type: Exclusive license Record date: 20081010 |
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