CN113048716A - Control method and refrigerator - Google Patents
Control method and refrigerator Download PDFInfo
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- CN113048716A CN113048716A CN201911384336.1A CN201911384336A CN113048716A CN 113048716 A CN113048716 A CN 113048716A CN 201911384336 A CN201911384336 A CN 201911384336A CN 113048716 A CN113048716 A CN 113048716A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005057 refrigeration Methods 0.000 claims abstract description 33
- 238000007710 freezing Methods 0.000 claims description 115
- 230000008014 freezing Effects 0.000 claims description 115
- 238000001816 cooling Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000003507 refrigerant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000011555 saturated liquid Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/02—Timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
本发明提供冰箱及控制方法，包括：步骤S1：比较所述冰箱的冷冻室的实时温度和冷冻室开机点温度，判断是否需要对所述冷冻室进行制冷，若判断需要对所述冷冻室制冷，则执行步骤S2；步骤S2：开启所述冰箱的压缩机对所述冷冻室制冷，记录所述压缩机的开启时间；步骤S3：比较所述冰箱的冷藏室的实时温度和冷藏室开机点温度，判断是否需要对所述冷藏室进行制冷，若判断需要对所述冷藏室制冷，则执行步骤S4；步骤S4：比较所述冷冻室开机点温度和所述冷冻室蒸发器的实时温度的差值，并判断所述差值是否小于预设区间；若所述差值小于所述预设区间则执行步骤S5；若所述差值大于所述预设区间则执行步骤S6。
The present invention provides a refrigerator and a control method, including: step S1: comparing the real-time temperature of the freezer compartment of the refrigerator with the temperature at the start-up point of the freezer compartment, judging whether the freezer compartment needs to be refrigerated, and if it is judged that the freezer compartment needs to be refrigerated , then perform step S2; step S2: turn on the compressor of the refrigerator to cool the freezer compartment, and record the opening time of the compressor; step S3: compare the real-time temperature of the freezer compartment of the refrigerator and the start point of the freezer compartment temperature, to determine whether the refrigeration room needs to be refrigerated, and if it is determined that the refrigeration room needs to be refrigerated, perform step S4; difference value, and determine whether the difference value is smaller than the preset interval; if the difference value is smaller than the preset interval, step S5 is performed; if the difference value is larger than the preset interval, step S6 is performed.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a refrigerator and a refrigeration control method thereof.
Background
At present, the single-system air-cooled refrigerator is characterized in that: the freezing chamber is provided with a set of refrigerating system which mainly comprises an evaporator and a convection fan, wherein the evaporator provides cold for the freezing chamber, and the convection fan rotates to force air in the freezing chamber to convect through the evaporator so as to improve the heat exchange effect. The refrigerating chamber directly blows low-temperature air (usually-18 ℃) in the freezing chamber into the refrigerating chamber through an air duct, and the low-temperature air is mixed with the air in the refrigerating chamber and then flows back into the freezing chamber through a return air inlet, so that the temperature in the refrigerating chamber is reduced. The refrigerating system of the single-system air-cooling refrigerator is simple in structure, but air in the freezing chamber is mixed with air in the refrigerating chamber at the temperature of 18 ℃ below zero, and the temperature fluctuation of the freezing chamber is large due to the fact that the difference between the temperature of the freezing chamber and the temperature of the refrigerating chamber is large, and food materials in the freezing chamber are not kept fresh.
Disclosure of Invention
Therefore, one of the objectives of the present invention is to provide a method for controlling a refrigeration system of a refrigerator, so as to overcome the problem of large temperature fluctuation of a freezing chamber of the single-system air-cooled refrigerator.
The invention provides a control method for refrigeration of a refrigerator, which comprises the following steps:
step S1: comparing the real-time temperature of the freezing chamber of the refrigerator with the starting point temperature of the freezing chamber, judging whether the freezing chamber needs to be refrigerated or not, and if so, executing the step S2;
step S2: starting a compressor of the refrigerator to refrigerate the freezing chamber, and recording the starting time of the compressor;
step S3: comparing the real-time temperature of the refrigerating chamber of the refrigerator with the starting point temperature of the refrigerating chamber, judging whether the refrigerating chamber needs to be refrigerated or not, and if so, executing a step S4;
step S4: comparing the difference value between the starting point temperature of the freezing chamber and the real-time temperature of the evaporator of the freezing chamber, and judging whether the difference value is smaller than a preset interval or not; if the difference is smaller than the preset interval, executing step S5; if the difference is greater than the preset interval, executing step S6;
in step S5, the refrigerating compartment is cooled by opening a refrigerating compartment damper; in step S6, the refrigerating compartment is not cooled.
As an optional technical scheme, the temperature range of the preset interval is 0-5 ℃.
As an optional technical solution, if it is determined in step S3 that refrigeration of the refrigerating compartment is not required, closing a damper of the refrigerating compartment, and simultaneously performing step S11, where step S11 is to continuously determine whether refrigeration of the freezing compartment is required; if judging that the refrigerating chamber needs to be refrigerated, returning to the step S2; if it is determined that the cooling of the freezing chamber is not necessary, the step S31 is executed.
As an optional technical solution, in the step S31, it is continuously determined whether refrigeration of the refrigerating chamber is required; if the refrigerating chamber needs to be cooled, returning to the step S4; if it is determined that cooling of the refrigerating compartment is not required, the step S7 is performed.
As an optional technical solution, the step S7 includes controlling the compressor and the freezing chamber fan to stop, recording a stop time of the compressor, and calculating a running time between the stop time and the on time.
As an optional technical solution, the method further includes step S8, where in step S8, it is determined whether the operation time is less than a preset time range, and if the operation time is less than the preset time range, the step S9 is executed; if the operation time is not less than the preset time range, the step S10 is executed.
As an optional technical solution, the step S9 is: decreasing the operating frequency of the compressor in the next refrigeration cycle; continuing to judge whether the running time is greater than the preset time, and if the running time is greater than the preset time, executing step S11; in step S11, the operating frequency of the compressor is increased in the next refrigeration cycle.
As an optional technical solution, the running time is a minimum value smaller than the preset time range; and the running time is greater than the maximum value of the preset time range.
As an optional technical solution, the preset time range is 80min to 300 min.
Another object of the present invention is to provide a refrigerator including a refrigerating system for refrigerating a refrigerating chamber and a freezing chamber of the refrigerator, the refrigerating system refrigerating the refrigerating chamber and the freezing chamber according to the control method as described above.
Compared with the prior art, in the control method provided by the invention, before refrigerating the refrigerating chamber, the difference between the real-time temperature of the evaporator of the refrigerating chamber in the refrigerating system and the starting point temperature of the refrigerating chamber is monitored, and when the difference falls into a preset temperature range, the refrigerating chamber is refrigerated, namely, the refrigerating priority of the refrigerating chamber is controlled to be higher than that of the refrigerating chamber so as to maintain the temperature fluctuation of the refrigerating chamber to be small, so that the food material fresh-keeping effect of the refrigerating chamber is better.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
Fig. 1 is a functional block diagram of a refrigerator of the present invention;
FIG. 2 is a functional block diagram of a refrigeration system of the refrigerator of the present invention;
fig. 3 is a flowchart illustrating a control method of a refrigerating system of a refrigerator according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a functional block diagram of a refrigerator of the present invention; fig. 2 is a functional block diagram of a refrigerating system of a refrigerator according to the present invention.
As shown in fig. 1 and 2, the present invention provides a single evaporator air-cooled refrigerator including a freezing chamber 1, a refrigerating chamber 2 disposed inside the refrigerator, and a refrigerating system including a freezing chamber evaporator 3 providing cooling energy toward the freezing chamber 1 and the refrigerating chamber 2.
The freezing chamber 1 is internally provided with a first temperature sensor 4 for acquiring the real-time temperature of the freezing chamber; a second temperature sensor 5 is arranged in the refrigerated container 2 to obtain the real-time temperature of the refrigerated container; a third temperature sensor 6 is provided in the freezer evaporator 3 to obtain the real-time temperature of the freezer evaporator 3.
This application corresponds freezer 1, is equipped with freezer start point temperature and freezer shutdown point temperature, compares the real-time temperature in freezer start point temperature and freezer 1 and judges whether need refrigerate freezer 1, wherein, if the real-time temperature in freezer 1 is greater than when the freezer start point temperature, need refrigerate freezer 1, compressor 8 starts to open freezer evaporimeter 3 and freezer fan; if the real-time temperature in the freezing chamber 1 is lower than the starting point temperature of the freezing chamber, the freezing chamber 1 does not need to be refrigerated; and if the real-time temperature in the freezing chamber 1 is lower than the shutdown point temperature of the freezing chamber, controlling the freezing chamber evaporator 3 and the freezing chamber fan to stop. The freezing chamber shutdown point temperature is less than the freezing chamber startup point temperature, and the freezing chamber shutdown point temperature and the freezing chamber startup point temperature are fixed values respectively and can be preset. For example, the freezing chamber shutdown point temperature is-19 ℃ and the freezing chamber startup point temperature is-18 ℃.
The freezer shutdown point temperature and the freezer startup point temperature may be used to avoid frequent turning on and/or off of a refrigeration system of the refrigerator.
Similarly, a refrigerating chamber starting point temperature and a refrigerating chamber shutdown point temperature are set corresponding to the refrigerating chamber 2, the refrigerating chamber starting point temperature and the real-time temperature in the refrigerating chamber 2 are compared, whether the refrigerating chamber 2 needs to be refrigerated or not is judged, and if the real-time temperature in the refrigerating chamber 2 is higher than the refrigerating chamber starting point temperature, the refrigerating chamber 2 needs to be refrigerated, and a refrigerating chamber fan is started; if the real-time temperature in the refrigerating chamber 2 is lower than the starting point temperature of the refrigerating chamber, the refrigerating chamber 2 does not need to be refrigerated; and if the real-time temperature of the refrigerating chamber is lower than the temperature of the shutdown point of the refrigerating chamber, the refrigerating chamber evaporator 4 and the refrigerating chamber fan can be controlled to be shut down. The refrigerating chamber power-off point temperature is smaller than the refrigerating chamber power-on point temperature, and the refrigerating chamber power-off point temperature and the refrigerating chamber power-on point temperature are respectively a certain value. For example, the refrigerating chamber power-off point temperature is-1 ℃ and the freezing chamber power-on point temperature is 0 ℃.
The working process of the refrigerating system comprises that the compressor 8 is started, low-temperature and low-pressure refrigerant is sucked by the compressor 8, and is compressed into high-temperature and high-temperature superheated gas in a cylinder of the compressor 8 and then is discharged into the condenser 9; the high-temperature and high-temperature superheated gas is radiated by the condenser 9, the temperature is reduced, and the gas is gradually cooled to normal-temperature and high-pressure saturated steam and further cooled to saturated liquid; the condensed refrigeration and saturated liquid is changed into normal-temperature low-pressure wet steam through the throttling of the capillary tube 10; the refrigerant is then vaporized by absorbing heat in the freezer evaporator 3 to lower the temperature of the freezer evaporator 3 and its surroundings, and at the same time, the refrigerant is turned into a low-temperature, low-pressure gas. The refrigerant from the freezer evaporator 3 returns to the compressor 8 again, and the above process is repeated to transfer the heat in the refrigerator to the air outside the refrigerator, thereby achieving the purpose of refrigeration.
In addition, the refrigerator provided by the invention also comprises a refrigerator computer control board 7 which can acquire real-time temperatures detected by the first temperature sensor 4, the second temperature sensor 5 and the third temperature sensor 6; and controlling the refrigeration system to execute different steps by judging and comparing different real-time temperatures.
Further, the computer control board 7 of the refrigerator can also control the on and off, the running frequency and the like of the compressor 8, the freezing chamber evaporator 3, the freezing chamber fan and the refrigerating chamber fan.
Fig. 3 is a flowchart illustrating a control method of a refrigerating system of a refrigerator according to the present invention.
As shown in fig. 3, the control method 100 includes:
step S1: comparing the real-time temperature of the freezing chamber of the refrigerator with the starting point temperature of the freezing chamber, judging whether the freezing chamber needs to be refrigerated or not, and if so, executing the step S2;
step S2: starting a compressor of the refrigerator to refrigerate the freezing chamber, and recording the starting time of the compressor;
step S3: comparing the real-time temperature of the refrigerating chamber of the refrigerator with the starting point temperature of the refrigerating chamber, judging whether the refrigerating chamber needs to be refrigerated or not, and if so, executing a step S4;
step S4: comparing the difference value between the starting point temperature of the freezing chamber and the real-time temperature of the evaporator of the freezing chamber, and judging whether the difference value is smaller than a preset interval or not; if the difference is smaller than the preset interval, executing step S5; if the difference is greater than the preset interval, executing step S6;
step S5 is to cool the refrigerating chamber; in step S6, the refrigerating compartment is not cooled.
In a preferred embodiment, in step S1, the computer control board 7 of the refrigerator obtains the real-time temperature of the freezing compartment 1 detected by the first temperature sensor 4, and compares the real-time temperature of the freezing compartment 1 with the freezing compartment start point temperature, which is, for example, -18 ℃. If the real-time temperature in the freezing chamber 1 is less than the freezing chamber starting point temperature, and the real-time temperature in the freezing chamber 1 is also less than the freezing chamber shutdown point temperature, which indicates that the temperature in the freezing chamber 1 is lower, executing step S20; if the real-time temperature in the freezing chamber 1 is higher than the starting point temperature of the freezing chamber, the temperature in the freezing chamber 1 is higher, and the freezing chamber 1 needs to be refrigerated.
In addition, the step S20 is to control the compressor 8 and the freezing chamber fan to stop.
In addition, if the real-time temperature in the freezing chamber 1 is judged to be lower than the freezing chamber starting point temperature and lower than the freezing chamber shutdown point temperature, the refrigerator computer control board 7 controls the compressor 8 to keep running until the real-time temperature in the freezing chamber 1 is lower than the freezing chamber shutdown point temperature, and then controls the compressor 8 to stop.
In a preferred embodiment, in step S2, the computer control board 7 of the refrigerator outputs a control signal to turn on the compressor 8, and the refrigerant circulates through the refrigeration system to provide the cooling energy generated by the evaporator 3 of the freezing chamber to the freezing chamber 1 through a fan (not shown) of the freezing chamber. At the same time, the refrigerator computer control board 7 records the on-time of the compressor 8.
In a preferred embodiment, in step S3, the computer control board 7 of the refrigerator obtains the real-time temperature in the refrigerating compartment 2 detected by the second temperature sensor 5, and compares the real-time temperature in the refrigerating compartment 2 with the starting point temperature of the refrigerating compartment, for example, about 0 ℃. If the real-time temperature in the refrigerating chamber 2 is lower than the starting point temperature of the refrigerating chamber, refrigerating the refrigerating chamber 2 is not needed, and an air door of the refrigerating chamber is closed; if the real-time temperature in the refrigerating chamber 2 is higher than the starting point temperature of the refrigerating chamber, the temperature in the refrigerating chamber 2 is higher, and the refrigerating chamber 2 needs to be refrigerated.
In a preferred embodiment, in step S4, the computer control board 7 of the refrigerator obtains the real-time temperature of the freezer evaporator 3 detected by the third temperature sensor 6, calculates the difference between the real-time temperature of the freezer evaporator 3 and the temperature of the starting point of the freezer evaporator, and compares whether the difference is smaller than a preset interval. Wherein the temperature range of the preset interval is 0-5 ℃. In a preferred embodiment, the difference may fall between 0 ℃ and 5 ℃ and in extreme cases may not exceed 5 ℃.
When the difference value exceeds the preset interval, the temperature in the freezing chamber 1 is higher, step S6 is executed, and the refrigerating chamber damper is closed, so that the refrigerating chamber 2 is not cooled. At this moment, the refrigerator computer control panel 7 controls the refrigerating system to preferentially provide cold energy for the freezing chamber 1, so that the real-time temperature of the freezing chamber evaporator 3 is close to the starting point temperature of the freezing chamber, the temperature fluctuation in the freezing chamber 1 is avoided, and the fresh-keeping effect is improved. That is, on the premise of appropriately sacrificing the refrigerating effect of the refrigerating chamber 2, the freezing effect in the freezing chamber 1 is ensured, and the problem that the temperature fluctuation in the freezing chamber 1 is large due to the real-time temperature rise of the freezing chamber evaporator 3 caused by refrigerating the refrigerating chamber 2 is avoided.
When the difference is less than or falls within the preset interval, which indicates that the real-time temperature of the freezing compartment evaporator 3 is low, step S5 may be performed. The computer control board 7 of the refrigerator controls the opening of the air door of the refrigerating chamber in the refrigerating chamber 2, so that the refrigerating capacity provided by the evaporator 3 of the freezing chamber can be sent into the refrigerating chamber 2 from the air channel and the air door of the refrigerating chamber to refrigerate the refrigerating chamber. At this time, since the real-time temperature of the freezing chamber evaporator 3 is low, the temperature in the freezing chamber 1 is not significantly affected even if the refrigerating chamber 2 is refrigerated, and the temperature fluctuation in the freezing chamber 1 is avoided.
The step S4 is to redistribute the cooling capacity in the refrigeration system, so as to avoid the problem that the real-time temperature fluctuation in the freezing chamber 1 is too large, which results in poor fresh-keeping effect of the freezing chamber 1.
In a preferred embodiment, if it is determined in step S3 that refrigeration of refrigerating compartment 2 is not required, refrigerator computer control board 7 closes the refrigerating compartment damper of refrigerating compartment 2, and simultaneously performs step S11, wherein in step S11, refrigerator computer control board 7 continues to determine whether refrigeration of freezing compartment 1 is required (the determination process is similar to step S1); comparing the real-time temperature in the freezing chamber 1 with the starting point temperature of the freezing chamber, judging that the freezing chamber 1 needs to be refrigerated, and returning to the step S2; alternatively, if it is determined that cooling of freezing chamber 1 is not necessary, step S31 is executed.
Wherein, the step S31 is that the refrigerator computer control board 7 continues to judge whether the refrigerating chamber needs to be refrigerated (the judging process is similar to the step S3); judging that the refrigerating chamber 2 needs to be refrigerated by comparing the real-time temperature in the refrigerating chamber 2 with the refrigerating chamber starting point temperature, and returning to the step S4; alternatively, if it is determined that cooling of refrigerating room 2 is not necessary, step S7 is executed.
In a preferred embodiment, step S7 includes the computer control board 7 controlling the compressor 8 and the freezing chamber blower in the refrigeration system to stop, and recording the stop time of the compressor 8; the downtime is stored in the storage unit while the running time between the downtime and the on time is calculated (in step S2).
In a preferred embodiment, after the step S7, the process proceeds to a step S8, the computer control board 7 of the refrigerator compares the operation time with a preset time range, and if the operation time is less than the preset time range, the step S9 is executed; if the operation time is not less than the preset time range, step S10 is executed. Wherein the step S9 is: in the next refrigeration cycle, the refrigerator computer control board 7 reduces the operating frequency of the compressor 8; the step S10 is to continuously determine whether the operation time is greater than the preset time range, and if the operation time is greater than the preset time range, execute step S11; in step S11, in the next cooling cycle, the refrigerator computer control board 7 increases the operating frequency of the compressor 8.
In a preferred embodiment, the running time is less than the minimum value of the preset time range; or the running time is greater than the maximum value of the preset time range. The preset time range is 80min-300 min.
The operating frequency of the compressor 8 relates to 30Hz, 36Hz, 42Hz, 50Hz, 56Hz, 60Hz, 66Hz, 72Hz, etc.
In the steps S9 and S11, the operation frequency of the compressor 11 is adjusted to be lower or higher, for example, the operation frequency of the previous period is 36Hz, and when the operation frequency needs to be adjusted to be higher, the operation frequency is adjusted to be 42 Hz; when the lower part is needed, the lower part is adjusted to 30 Hz.
In the present invention, the operation of the compressor 8 is counted as one operation cycle from step S2 to step S7, wherein the real-time temperature in the freezing chamber 1 is already matched with the starting point temperature of the freezing chamber in step S7, and the problem of excessive temperature variation in the freezing chamber 1 is overcome by controlling the cooling time period of the freezing chamber fan.
Simply speaking, too long or too short a cooling time period is not good for stabilizing the real-time temperature in the freezing chamber 1. If the working time of the compressor 8 is too short, for example, less than 80min, which indicates that the operating frequency (or the rotating speed) of the compressor 8 is too high, the temperature in the freezing chamber 1 can be rapidly reduced in a short time by the freezing chamber fan; if the operation time of the compressor 8 is too long, for example, less than 300min, it means that the operation frequency (or rotation speed) of the compressor 8 is too low, which results in slow temperature reduction of the freezer evaporator 3, and the freezer fan needs a long time to slowly reduce the temperature in the freezer 1. That is, the temperature in the freezing chamber 1 falls too fast or too slow, and there is a problem that the range of real-time temperature fluctuation is large.
Experiments prove that the freezing chamber 1 can obtain the best fresh-keeping effect by small real-time temperature fluctuation of the freezing chamber 1 and long refrigerating time of the freezing chamber 1.
In steps S4, S6 in fig. 3, DFS represents the real-time temperature of the freezing evaporator; f-on represents the freezer starting point temperature. DFS-F-on represents the difference between the real-time temperature of the freeze evaporator and the freezer compartment starting point temperature.
The present invention also provides a refrigerator (not shown) for performing refrigeration of a refrigerating chamber and a freezing chamber of the refrigerator, the refrigerating system refrigerating the refrigerating chamber and the freezing chamber according to the control method 100 as described above.
In summary, in the control method provided by the present invention, before refrigerating the refrigerating chamber, the difference between the real-time temperature of the evaporator in the refrigeration system and the real-time temperature of the freezing chamber is monitored, and when the difference falls within the preset temperature range, the refrigerating chamber is refrigerated, that is, the refrigerating priority of the freezing chamber is controlled to be higher than that of the refrigerating chamber, so as to maintain the temperature fluctuation of the freezing chamber to be small, and the food material fresh-keeping effect of the freezing chamber is better.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911384336.1A CN113048716B (en) | 2019-12-28 | 2019-12-28 | Control method and refrigerator |
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| CN201911384336.1A CN113048716B (en) | 2019-12-28 | 2019-12-28 | Control method and refrigerator |
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| CN113048716A true CN113048716A (en) | 2021-06-29 |
| CN113048716B CN113048716B (en) | 2022-11-22 |
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Cited By (1)
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| CN114674106A (en) * | 2022-04-26 | 2022-06-28 | 长虹美菱股份有限公司 | Refrigerator capable of converting temperature area |
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| CN113048716B (en) | 2022-11-22 |
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