CN103438659A - Air-cooled refrigerator high-temperature start control method - Google Patents
Air-cooled refrigerator high-temperature start control method Download PDFInfo
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- CN103438659A CN103438659A CN2013103991980A CN201310399198A CN103438659A CN 103438659 A CN103438659 A CN 103438659A CN 2013103991980 A CN2013103991980 A CN 2013103991980A CN 201310399198 A CN201310399198 A CN 201310399198A CN 103438659 A CN103438659 A CN 103438659A
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Abstract
The invention relates to the technical field of electric refrigerators, particularly an air-cooled refrigerator high-temperature start control method. In the air-cooled refrigerator high-temperature start control method, the refrigerator is an air-cooled refrigerator; a compressor, an evaporation blower, an evaporator temperature sensor, a chamber temperature sensor and an evaporator are arranged in the refrigerator; the evaporator temperature sensor is arranged on the evaporator; and the compressor, evaporation blower, evaporator temperature sensor and chamber temperature sensor are respectively connected with a control panel of the refrigerator. The control method comprises the following steps: S1. initializing power-on; 2. clearing high-temperature high-load state zone bit; and S3. dividing the refrigerator operating state into a high-temperature high-load state (if Tx>=Txz) and a stable operation state (if Tx<Txz) by the control panel according to the chamber temperature Tx detected by the chamber temperature sensor. The invention can ensure the air-cooled refrigerator to operate normally in a high-temperature environment under the voltage-fluctuation abnormal working conditions on the premise of not increasing the cost or influencing the normal use.
Description
Technical field
The present invention relates to the technical field of refrigerator, more specifically, relate to the high startup temperature control method of a kind of wind cooling refrigerator.
Background technology
Along with the raising of expanding economy and people's living standard, use colony and the area of wind cooling refrigerator more and more extensive.People are more and more higher to the performance requirement of wind cooling refrigerator, and the environment for use of wind cooling refrigerator is more and more diversified, and particularly torrid areas requires wind cooling refrigerator under the high temperature high-load condition still can normally move.Be the maximum and household electricity voltage pulsation of wind cooling refrigerator sales volume season the most frequently summer, in hot environment, the temperature in refrigerator compartment can be very high in transit, after the user takes refrigerator, quality determination is carried out in energising immediately, in the situation that high temperature high load capacity and voltage pulsation, the compressor of refrigerator can, because overwork causes starting fault and fluctuation of service, affect user's normal judgement and use unavoidably under the non-normal working condition.
The problems referred to above can solve by adopting the better compressor of refrigerating capacity, but have correspondingly increased cost.
Chinese patent CN201210284791.6 provides a kind of control method of refrigerator of applicable hot environment, adopt the stagger way of each chamber load peak of constant time lag optimal control, although can solve the starting problem of many warm areas wind cooling refrigerator under hot environment, but inapplicable for single warm area wind cooling refrigerator, and constant time lag is unfavorable for the performance of compressor performance otherness, affect chilling rate and the cooling velocity of refrigerator.
Summary of the invention
Technical problem to be solved by this invention is to provide the high startup temperature control method of a kind of wind cooling refrigerator, in the situation that do not increase cost and do not affect normal use, guarantee that wind cooling refrigerator can normally move under the non-normal working condition of hot environment and voltage pulsation.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the high startup temperature control method of a kind of wind cooling refrigerator, refrigerator is wind cooling refrigerator, be provided with compressor, evaporation fan, evaporator temperature sensor, compartment temperature sensor and evaporimeter in refrigerator, evaporator temperature sensor is located on evaporimeter; Compressor, evaporation fan, evaporator temperature sensor, compartment temperature sensor all are connected with the control panel of refrigerator, and wherein, the control method of described refrigerator is:
S1. power-up initializing;
S2. zero clearing high temperature higher load condition flag bit;
S3. the compartment temperature Tx that control panel detects according to the compartment temperature sensor is divided into high temperature higher load condition and steady operational status by the refrigerator work state, if Tx<Txz is steady operational status; If Tx >=Txz is the high temperature higher load condition, wherein, Txz is the compartment temperature sensor characteristics temperature that the refrigerator condition discrimination is used, constant.
The method not environment for use temperature sensor directly is divided into high temperature higher load condition and steady operational status according to compartment temperature by the refrigerator work state, and the method that adopts blower fan time delay reduction of speed to reduce compressor load under the high temperature higher load condition guarantees that refrigerator can normally start refrigeration and be switched to smoothly steady operational status.
Evaporation fan meets wide voltage power supply requirement, can regulate its rotating speed by regulating operating voltage.Described control method is divided into high temperature higher load condition and steady operational status by the compartment temperature sensor temperature by the refrigerator work state, first close evaporation fan under the high temperature higher load condition, only allow the compressor operating refrigeration, after being pulled low to characteristic temperature, evaporator temperature to start chamber between blower fan pair lower than the stable operation rotating speed, freezed again, the load reduced under the compressor hot environment is avoided the press overtemperature protection, when compartment temperature is reduced to characteristic temperature or compressor operating and reaches the characteristic time, evaporation fan is switched to the stable operation rotating speed, refrigerator is switched to steady operational status by the high temperature higher load condition.
Concrete, in described step S3, described steady operational status is specially:
S31. as compartment temperature Tx<Txz and while having exited the high temperature higher load condition, refrigerator work is in steady operational status, and under steady operational status, evaporation fan carries out work with rated voltage;
S32. relatively, if Tx >=Txon, a chamber needs refrigeration for compartment temperature Tx and a chamber turn-on temperature Txon, compressor start, evaporation fan high-speed cruising; If Tx<Txon, enter step S33;
S33. relatively, when Tx<Txoff, a chamber does not need refrigeration for compartment temperature Tx and chamber shutdown temperature Txoff, compressor shutdown, and evaporation fan is out of service;
Wherein, Txon be between the chamber turn-on temperature, variable; Txoff be between the chamber shutdown temperature, variable.
Concrete, in described step S3, described high temperature higher load condition is specially:
S3a. when compartment temperature Tx >=Txz, refrigerator is switched to the high temperature higher load condition, compressor operating, and evaporation fan is out of service;
S3b. relatively, if Tx<Txoff, zero clearing high temperature higher load condition flag bit, proceed to steady operational status for compartment temperature Tx and a chamber shutdown temperature Txoff; If Tx >=Txoff, enter step S3c;
S3c. compressor continuous operating time tc and compressor move the longest permission time tcmax relatively continuously, if tc >=tcmax, zero clearing high temperature higher load condition flag bit, proceed to steady operational status; If tc<tcmax, enter step S3d;
S3d. the evaporator temperature sensor characteristic temperature Tez that under the evaporator temperature Te that evaporator temperature sensor detects and high temperature higher load condition, the blower fan delayed startup is used relatively, if Te<Tez, under compressor continuous operating time tc and high temperature higher load condition, the essential short time delay time tdmin met of blower fan delayed startup relatively, if tc >=tdmin, the evaporation fan low cruise; If Te >=Tez, enter step S3e;
S3e. under compressor continuous operating time tc and high temperature higher load condition, the blower fan delayed startup allows long delay time tdmax relatively, if tc >=tdmax, the evaporation fan low cruise;
Wherein, Te is the evaporator temperature that evaporator temperature sensor detects, variable; Tez is the evaporator temperature sensor characteristic temperature that under the high temperature higher load condition, the blower fan delayed startup is used, constant; Tc is the compressor continuous operating time, variable; Tcmax, compressor is the longest permission time of operation continuously, constant; Tdmin, the essential short time delay time met of blower fan delayed startup under the high temperature higher load condition, constant; Tdmax, under the high temperature higher load condition, the blower fan delayed startup allows long delay time, constant.
Further, described Txz is 36-40 ℃, and preferred, Txz is 38 ℃.Described tcmax is 200-300 minute, and preferred, tcmax is 240 minutes.Tez recommends selection range 2-10 ℃, preferentially chooses 8 ℃, and tdmin recommends selection range 5-15 minute, preferentially chooses 10 minutes, and tdmax recommends selection range 30-90 minute, preferentially chooses 60 minutes.
Compared with prior art, beneficial effect is: the present invention in the situation that do not increase cost and do not affect normal use, guarantees that wind cooling refrigerator can normally move under the non-normal working condition of hot environment and voltage pulsation.The method not environment for use temperature sensor directly is divided into high temperature higher load condition and steady operational status according to compartment temperature by the refrigerator work state, and the method that adopts blower fan time delay reduction of speed to reduce compressor load under the high temperature higher load condition guarantees that refrigerator can normally start refrigeration and be switched to smoothly steady operational status.
The accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is integrated circuit catenation principle schematic diagram of the present invention.
Fig. 3 is control flow schematic diagram of the present invention.
The specific embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent; For better explanation the present embodiment, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; To those skilled in the art, in accompanying drawing some known configurations and explanation thereof may to omit be understandable.
As shown in Figure 1, the high startup temperature control method of a kind of wind cooling refrigerator, refrigerator is wind cooling refrigerator, is provided with compressor 1, evaporation fan 3, evaporator temperature sensor 2, compartment temperature sensor 4 and evaporimeter 5 in refrigerator, and evaporator temperature sensor 2 is located on evaporimeter 5; As shown in Figure 2, compressor 1, evaporation fan 3, evaporator temperature sensor 2, compartment temperature sensor 4 all are connected with the control panel of refrigerator, and as shown in Figure 3, wherein, the control method of refrigerator is:
S1. power-up initializing;
S2. zero clearing high temperature higher load condition flag bit;
S3. the compartment temperature Tx that control panel detects according to the compartment temperature sensor is divided into high temperature higher load condition and steady operational status by the refrigerator work state, if Tx<Txz is steady operational status; If Tx >=Txz is the high temperature higher load condition, wherein, Txz is the compartment temperature sensor characteristics temperature that the refrigerator condition discrimination is used, constant.
The method not environment for use temperature sensor directly is divided into high temperature higher load condition and steady operational status according to compartment temperature by the refrigerator work state, and the method that adopts blower fan time delay reduction of speed to reduce compressor load under the high temperature higher load condition guarantees that refrigerator can normally start refrigeration and be switched to smoothly steady operational status.
Evaporation fan meets wide voltage power supply requirement, can regulate its rotating speed by regulating operating voltage.Described control method is divided into high temperature higher load condition and steady operational status by the compartment temperature sensor temperature by the refrigerator work state, first close evaporation fan under the high temperature higher load condition, only allow the compressor operating refrigeration, after being pulled low to characteristic temperature, evaporator temperature to start chamber between blower fan pair lower than the stable operation rotating speed, freezed again, the load reduced under the compressor hot environment is avoided the press overtemperature protection, when compartment temperature is reduced to characteristic temperature or compressor operating and reaches the characteristic time, evaporation fan is switched to the stable operation rotating speed, refrigerator is switched to steady operational status by the high temperature higher load condition.
Concrete, in described step S3, described steady operational status is specially:
S31. as compartment temperature Tx<Txz and while having exited the high temperature higher load condition, refrigerator work is in steady operational status, and under steady operational status, evaporation fan carries out work with rated voltage;
S32. relatively, if Tx >=Txon, a chamber needs refrigeration for compartment temperature Tx and a chamber turn-on temperature Txon, compressor start, evaporation fan high-speed cruising; If Tx<Txon, enter step S33;
S33. relatively, when Tx<Txoff, a chamber does not need refrigeration for compartment temperature Tx and chamber shutdown temperature Txoff, compressor shutdown, and evaporation fan is out of service;
Wherein, Txon be between the chamber turn-on temperature, variable; Txoff be between the chamber shutdown temperature, variable.
Concrete, in described step S3, described high temperature higher load condition is specially:
S3a. when compartment temperature Tx >=Txz, refrigerator is switched to the high temperature higher load condition, compressor operating, and evaporation fan is out of service;
S3b. relatively, if Tx<Txoff, zero clearing high temperature higher load condition flag bit, proceed to steady operational status for compartment temperature Tx and a chamber shutdown temperature Txoff; If Tx >=Txoff, enter step S3c;
S3c. compressor continuous operating time tc and compressor move the longest permission time tcmax relatively continuously, if tc >=tcmax, zero clearing high temperature higher load condition flag bit, proceed to steady operational status; If tc<tcmax, enter step S3d;
S3d. the evaporator temperature sensor characteristic temperature Tez that under the evaporator temperature Te that evaporator temperature sensor detects and high temperature higher load condition, the blower fan delayed startup is used relatively, if Te<Tez, under compressor continuous operating time tc and high temperature higher load condition, the essential short time delay time tdmin met of blower fan delayed startup relatively, if tc >=tdmin, the evaporation fan low cruise; If Te >=Tez, enter step S3e;
S3e. under compressor continuous operating time tc and high temperature higher load condition, the blower fan delayed startup allows long delay time tdmax relatively, if tc >=tdmax, the evaporation fan low cruise;
Wherein, Te is the evaporator temperature that evaporator temperature sensor detects, variable; Tez is the evaporator temperature sensor characteristic temperature that under the high temperature higher load condition, the blower fan delayed startup is used, constant; Tc is the compressor continuous operating time, variable; Tcmax, compressor is the longest permission time of operation continuously, constant; Tdmin, the essential short time delay time met of blower fan delayed startup under the high temperature higher load condition, constant; Tdmax, under the high temperature higher load condition, the blower fan delayed startup allows long delay time, constant.
The present embodiment refrigerator has two kinds of duties, is respectively steady operational status and high temperature higher load condition, the temperature T x decision in which kind of state by the compartment temperature sensor, and two kinds of duties can be switched mutually.Evaporation fan brings into operation with low-voltage slow-speed of revolution pattern, and under the low voltage operating pattern, rotation speed of fan reduces, and compressor load is corresponding to be reduced, and has avoided the overheat of compressor stoppage protection, has guaranteed the refrigerating function of refrigerator.
Further, described Txz is 36-40 ℃, and preferred, Txz is 38 ℃.Described tcmax is 200-300 minute, and preferred, tcmax is 240 minutes.Tez recommends selection range 2-10 ℃, preferentially chooses 8 ℃, and tdmin recommends selection range 5-15 minute, preferentially chooses 10 minutes, and tdmax recommends selection range 30-90 minute, preferentially chooses 60 minutes.
The corresponding same or analogous parts of same or analogous label; Describe position relationship in accompanying drawing only for exemplary illustration, can not be interpreted as the restriction to this patent.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can do the improvement of some applicable actual conditions to the technical scheme of invention.Therefore, protection scope of the present invention is not limited to this, and those of skill in the art are any to be included within protection domain of the present invention based on non-material change on technical solution of the present invention.
Claims (9)
1. the high startup temperature control method of wind cooling refrigerator, refrigerator is wind cooling refrigerator, is provided with compressor, evaporation fan, evaporator temperature sensor, compartment temperature sensor and evaporimeter in refrigerator, evaporator temperature sensor is located on evaporimeter; Compressor, evaporation fan, evaporator temperature sensor, compartment temperature sensor all are connected with the control panel of refrigerator, it is characterized in that, the control method of described refrigerator is:
S1. power-up initializing;
S2. zero clearing high temperature higher load condition flag bit;
S3. the compartment temperature Tx that control panel detects according to the compartment temperature sensor is divided into high temperature higher load condition and steady operational status by the refrigerator work state, if Tx<Txz is steady operational status; If Tx >=Txz is the high temperature higher load condition, wherein, Txz is the compartment temperature sensor characteristics temperature that the refrigerator condition discrimination is used, constant.
2. the high startup temperature control method of a kind of wind cooling refrigerator according to claim 1, is characterized in that, in described step S3, described steady operational status is specially:
S31. as compartment temperature Tx<Txz and while having exited the high temperature higher load condition, refrigerator work is in steady operational status, and under steady operational status, evaporation fan carries out work with rated voltage;
S32. relatively, if Tx >=Txon, a chamber needs refrigeration for compartment temperature Tx and a chamber turn-on temperature Txon, compressor start, evaporation fan high-speed cruising; If Tx<Txon, enter step S33;
S33. relatively, when Tx<Txoff, a chamber does not need refrigeration for compartment temperature Tx and chamber shutdown temperature Txoff, compressor shutdown, and evaporation fan is out of service;
Wherein, Txon be between the chamber turn-on temperature, variable; Txoff be between the chamber shutdown temperature, variable.
3. the high startup temperature control method of a kind of wind cooling refrigerator according to claim 2, is characterized in that, in described step S3, described high temperature higher load condition is specially:
S3a. when compartment temperature Tx >=Txz, refrigerator is switched to the high temperature higher load condition, compressor operating, and evaporation fan is out of service;
S3b. relatively, if Tx<Txoff, zero clearing high temperature higher load condition flag bit, proceed to steady operational status for compartment temperature Tx and a chamber shutdown temperature Txoff; If Tx >=Txoff, enter step S3c;
S3c. compressor continuous operating time tc and compressor move the longest permission time tcmax relatively continuously, if tc >=tcmax, zero clearing high temperature higher load condition flag bit, proceed to steady operational status; If tc<tcmax, enter step S3d;
S3d. the evaporator temperature sensor characteristic temperature Tez that under the evaporator temperature Te that evaporator temperature sensor detects and high temperature higher load condition, the blower fan delayed startup is used relatively, if Te<Tez, under compressor continuous operating time tc and high temperature higher load condition, the essential short time delay time tdmin met of blower fan delayed startup relatively, if tc >=tdmin, the evaporation fan low cruise; If Te >=Tez, enter step S3e;
S3e. under compressor continuous operating time tc and high temperature higher load condition, the blower fan delayed startup allows long delay time tdmax relatively, if tc >=tdmax, the evaporation fan low cruise;
Wherein, Te is the evaporator temperature that evaporator temperature sensor detects, variable; Tez is the evaporator temperature sensor characteristic temperature that under the high temperature higher load condition, the blower fan delayed startup is used, constant; Tc is the compressor continuous operating time, variable; Tcmax, compressor is the longest permission time of operation continuously, constant; Tdmin, the essential short time delay time met of blower fan delayed startup under the high temperature higher load condition, constant; Tdmax, under the high temperature higher load condition, the blower fan delayed startup allows long delay time, constant.
4. the high startup temperature control method of a kind of wind cooling refrigerator according to claim 3, is characterized in that, described Txz is 36-40 ℃.
5. the high startup temperature control method of a kind of wind cooling refrigerator according to claim 4, is characterized in that, described Txz is 38 ℃.
6. the high startup temperature control method of a kind of wind cooling refrigerator according to claim 3, is characterized in that, described tcmax is 200-300 minute.
7. the high startup temperature control method of a kind of wind cooling refrigerator according to claim 6, is characterized in that, described tcmax is 240 minutes.
8. the high startup temperature control method of a kind of wind cooling refrigerator according to claim 3, is characterized in that, described Tez is 2-10 ℃, and tdmin is 5-15 minute, and tdmax is 30-90 minute.
9. the high startup temperature control method of a kind of wind cooling refrigerator according to claim 8, is characterized in that, described Tez is 8 ℃, and tdmin is 10 minutes, and tdmax is 60 minutes.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236250A (en) * | 2014-10-14 | 2014-12-24 | 合肥美的电冰箱有限公司 | Refrigerator control method and device |
| CN107664386A (en) * | 2017-09-28 | 2018-02-06 | 广州美的华凌冰箱有限公司 | Blower fan starts method, system, computer equipment, readable storage medium storing program for executing and refrigerator |
| CN108106322A (en) * | 2017-11-21 | 2018-06-01 | 广州美的华凌冰箱有限公司 | Progress control method, device, refrigerator and computer readable storage medium |
| CN108413688A (en) * | 2018-03-21 | 2018-08-17 | 合肥美的电冰箱有限公司 | Controlling method for refrigerator, controller and refrigerator |
| CN114857854A (en) * | 2022-05-31 | 2022-08-05 | 创维电器股份有限公司 | Low-load starting control method for refrigerator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104236250A (en) * | 2014-10-14 | 2014-12-24 | 合肥美的电冰箱有限公司 | Refrigerator control method and device |
| CN107664386A (en) * | 2017-09-28 | 2018-02-06 | 广州美的华凌冰箱有限公司 | Blower fan starts method, system, computer equipment, readable storage medium storing program for executing and refrigerator |
| CN108106322A (en) * | 2017-11-21 | 2018-06-01 | 广州美的华凌冰箱有限公司 | Progress control method, device, refrigerator and computer readable storage medium |
| CN108413688A (en) * | 2018-03-21 | 2018-08-17 | 合肥美的电冰箱有限公司 | Controlling method for refrigerator, controller and refrigerator |
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| CN114857854A (en) * | 2022-05-31 | 2022-08-05 | 创维电器股份有限公司 | Low-load starting control method for refrigerator |
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