CN114576923B - Refrigerator fault detection operation control system and control method - Google Patents
Refrigerator fault detection operation control system and control method Download PDFInfo
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- CN114576923B CN114576923B CN202210348997.4A CN202210348997A CN114576923B CN 114576923 B CN114576923 B CN 114576923B CN 202210348997 A CN202210348997 A CN 202210348997A CN 114576923 B CN114576923 B CN 114576923B
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000005057 refrigeration Methods 0.000 claims description 53
- 230000008014 freezing Effects 0.000 claims description 43
- 238000007710 freezing Methods 0.000 claims description 43
- 238000002474 experimental method Methods 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000007257 malfunction Effects 0.000 claims 1
- 235000013305 food Nutrition 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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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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- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/122—Sensors measuring the inside temperature of freezer compartments
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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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- Engineering & Computer Science (AREA)
- 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
The invention discloses a refrigerator fault detection operation control system and a control method. In the invention, the following components are added: the first judging module judges whether the refrigerator starts a throttle fault running program or not and transmits a judging result to the first control module; the second judging module judges whether the refrigerator closes the air door fault operation program or not and transmits a judging result to the first control module; the first control module starts or closes a throttle fault running program; the second control module adjusts the running rotating speed of the refrigerating fan. According to the invention, whether the air door is faulty or not is judged according to the current temperature of the refrigerating room by the control unit, and a refrigerating control method of the refrigerator in the air door fault mode is worked out, so that the temperature of the refrigerating room and the refrigerating room of the refrigerator are ensured to be within a certain range, the technical scheme that the air door fault judging method is adopted in the prior art and refrigerating control is not carried out in the fault mode is solved, and the risk that food is frozen out due to zero temperature of the refrigerating room when the air door is faulty is avoided.
Description
Technical Field
The invention belongs to the technical field of refrigerator control, and particularly relates to a refrigerator fault detection operation control system and a control method.
Background
With the development of the household appliance industry, the air-cooled refrigerator in the domestic market is improved year by year. Electric dampers are widely used as components of air volume control mechanisms for air-cooled refrigerators. However, the electric air door is installed in the refrigerating air duct of the refrigerator, so that the situation that the electric air door is frozen and cannot be closed often occurs, the temperature of the refrigerating chamber is zero-crossing, and foods stored in the refrigerating chamber are frozen and deteriorated.
At present, the common technical scheme is that whether a refrigerator air door fails or not is judged through detection, but a refrigerator refrigeration control method is not provided under the condition that the air door fails, the refrigerator still operates according to the original refrigeration control specification, the refrigeration temperature still crosses zero, and stored foods are still frozen.
For a refrigerator-freezer of a single cycle refrigeration system, a motorized damper is used as an important component of the refrigerator to control the temperature of the refrigerated compartment. Whether the electric air door can be normally opened or closed determines whether the refrigeration temperature control is normal or not. The electric air door is arranged in the refrigerating cycle air duct of the refrigerator. The electric air door is in a low-temperature and humid air duct environment for a long time, and the rotating parts in the electric air door are always frozen to lose the rotating function of the electric air door, so that the electric air door cannot be normally closed, the temperature of the refrigerating chamber is zero-crossing, and the refrigerated food is frozen and deteriorated.
The conventional technical scheme is to judge whether the refrigerator air door fails according to the temperature of the refrigerating compartment, the air door reset and other methods. However, in the case of a failure of the damper, how the refrigerator should operate, there is no related technical solution, and the refrigerator still operates according to the original refrigeration control specification, so that the risk of freezing the stored food in the refrigerating chamber cannot be avoided.
Therefore, during the operation of the refrigerator, the refrigerator air door fault is found in time, and meanwhile, the refrigerator refrigeration control method in the air door fault mode can be very important.
Disclosure of Invention
The invention aims to provide a refrigerator fault detection operation control system and a control method, which judge whether an air door is faulty according to the current temperature of a refrigerating room through a control unit, and make a refrigerator refrigeration control method of the refrigerator in an air door fault mode, ensure that the temperature of the refrigerating room and a freezing room of the refrigerator are within a certain range, meet the basic refrigeration fresh-keeping function of the refrigerator, solve the technical scheme that the air door fault judgment method is adopted but the refrigeration control is not adopted in the fault mode in the prior art, and avoid the risk of freezing out foods caused by zero crossing of the temperature of the refrigerating room when the air door is faulty.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The invention relates to a refrigerator fault detection operation control system, which comprises a detection module for acquiring temperature data and time signals, wherein the detection module is respectively connected with a first judgment module, a second judgment module, a third judgment module and a first control module; the detection module comprises a temperature acquisition unit and a time acquisition unit; the temperature acquisition unit acquires refrigeration temperature and freezing temperature, sends the acquired refrigeration temperature data to the first judgment module, and sends the acquired freezing temperature data to the third judgment module; the time acquisition unit acquires the running time of the current air door fault running program and sends acquired time data to the second judgment module;
The first judging module is used for judging whether the refrigerator starts an air door fault operation program according to whether the refrigerating temperature value is smaller than a first preset temperature or not, and transmitting a judging result to the first control module;
The second judging module is connected with the detecting module and the first control module; the second judging module is used for judging whether the refrigerator closes the air door fault operation program according to whether the air door fault operation program operation time is longer than the first preset time or not, and transmitting a judging result to the first control module;
the first control module starts or closes the air door fault operation program according to the judging results of the first judging module and the second judging module;
the third judging module is used for judging whether the freezing temperature is higher than a fourth preset temperature or not and transmitting a judging result to the selecting module;
The selection module selects the corresponding running rotating speed of the refrigerating fan according to the judging result of the third judging module and transmits the instruction to the second control module; and the second control module adjusts the running rotating speed of the refrigerating fan according to the selection result of the selection module.
Preferably, the temperature collecting unit is a temperature sensor installed in the refrigerating chamber and the freezing chamber, respectively.
A refrigerator fault detection operation control method comprises the following steps:
Stp01: the first preset temperature T1s, the first preset time T1s and the refrigerating temperature Tc are preset. The first preset temperature T1s refers to the temperature of the corresponding refrigeration sensor when the average temperature of the refrigeration chamber is close to 0 ℃, and the value can be obtained through experiments; the value of the first preset time t1s is generally more than 24 hours; the refrigerating temperature Tc refers to the refrigerating sensor temperature;
Stp02, when the refrigerator is in normal refrigeration, collecting the temperature of a refrigeration sensor, and determining the current Tc value;
The normal refrigeration of the refrigerator means that the refrigerator is in a non-fault mode, both refrigeration and freezing can be performed normally, and the opening or closing of the electric air door, the compressor and the refrigerating fan is controlled according to the refrigeration state of each chamber of the refrigerator, and the method comprises the following steps:
When refrigerating, the electric air door, the compressor and the refrigerating motor are all opened;
when refrigeration is not performed and freezing and refrigerating are performed, the electric air door is closed, and the compressor and the refrigerating motor are both opened;
When the refrigeration and the freezing are not refrigeration, the electric air door, the compressor and the freezing motor are closed;
Stp03, judging whether the current Tc value is smaller than the T1s value, if yes, judging that the refrigeration is abnormal, and if no, judging that the refrigeration is normal and returning to the step Stp02;
Stp04, if the electric air door is in fault as a result of the judgment in the step 3, the refrigerator starts an air door fault operation program;
The air door fault operation program means that the refrigerator is in an air door fault mode, the opening or closing of the compressor and the refrigerating fan is controlled according to the refrigerating state of the refrigerating chamber of the refrigerator, the electric air door is in a normally open state, and the refrigerating chamber does not independently refrigerate and passively refrigerates along with the refrigerating;
stp05, monitoring the running time of a refrigerator air door fault running program, and judging whether the running time of the air door fault running program is longer than a first preset time t1s;
And if the running time of the air door fault running program is longer than the first preset time t1s, stopping running the air door fault running program by the refrigerator and returning to the step Stp02, otherwise, returning to the step Stp05, and continuing to monitor the running time of the air door fault running program of the refrigerator.
Preferably, the damper fault operation program performs the following steps:
Stp11, preset second preset temperature T2S, third preset temperature T3S, fourth preset temperature T4S, first preset rotation speed S1, second preset rotation speed S2 and freezing temperature Td;
the second preset temperature T2s and the third preset temperature T3s are respectively a refrigerating start-up temperature point and a refrigerating stop temperature point of the refrigerator under the air door fault operation program, the value of the T2s is larger than the value of the T3s, and the values of the T2s and the T3s can be obtained through experiments;
A fourth preset temperature T4s for dividing the freezing chamber into two temperature sections with T4s as a boundary;
The first preset rotating speed S1 and the second preset rotating speed S2 are the running rotating speeds of the refrigerating fans, and S1 is smaller than S2;
the freezing temperature Td refers to the freezing sensor temperature;
stp12, taking T2s as a starting temperature point and T3s as a stopping temperature point to control the refrigerator to refrigerate, and simultaneously collecting the temperature of a freezing sensor to determine the current Td value;
stp13, judging whether the Td value is larger than T4S, if yes, operating the refrigerating fan at the S1 rotating speed, otherwise, operating the refrigerating fan at the S2 rotating speed;
stp14, according to the output result of step Stp13, adjust the running speed of the refrigerating fan.
The invention has the following beneficial effects:
according to the invention, whether the air door is faulty or not is judged according to the current temperature of the refrigerating room by the control unit, and a refrigerating control method of the refrigerator in the air door fault mode is worked out, so that the temperature of the refrigerating room and the freezing room of the refrigerator are ensured to be within a certain range, the basic refrigerating and fresh-keeping functions of the refrigerator are met, the technical scheme that the air door fault judging method is adopted but the refrigerating control in the fault mode is not adopted in the prior art is solved, and the risk that food is frozen out due to zero-crossing of the temperature of the refrigerating room when the air door is faulty is avoided.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a system block diagram of a refrigerator fault detection operation control system of the present invention;
Fig. 2 is a flowchart of a refrigerator fault detection operation control method of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention is a refrigerator fault detection operation control system, which comprises a detection module for acquiring temperature data and time signals, wherein the detection module is respectively connected with a first judgment module, a second judgment module, a third judgment module and a first control module; the selection module is connected with the third judgment module and the second control module;
the detection module comprises a temperature acquisition unit and a time acquisition unit; the temperature acquisition unit is a temperature sensor respectively arranged in the refrigerating chamber and the freezing chamber; the temperature acquisition unit acquires refrigeration temperature and freezing temperature, sends acquired refrigeration temperature data to the first judgment module, and sends acquired freezing temperature data to the third judgment module;
the time acquisition unit acquires the running time of the current air door fault running program and sends acquired time data to the second judgment module;
The first judging module is used for judging whether the refrigerator starts an air door fault operation program according to whether the refrigerating temperature value is smaller than a first preset temperature or not, and transmitting a judging result to the first control module;
The second judging module is connected with the detecting module and the first control module; the second judging module is used for judging whether the refrigerator closes the air door fault operation program according to whether the air door fault operation program operation time is longer than the first preset time or not, and transmitting a judging result to the first control module;
the first control module starts or closes the air door fault operation program according to the judging results of the first judging module and the second judging module;
The third judging module is used for judging whether the freezing temperature is higher than a fourth preset temperature or not and transmitting a judging result to the selecting module; the selection module selects the corresponding running rotating speed of the refrigerating fan according to the judging result of the third judging module and transmits the instruction to the second control module; and the second control module adjusts the running rotating speed of the refrigerating fan according to the selection result of the selection module.
As shown in fig. 2, a refrigerator fault detection operation control method includes the steps of:
Stp01: the first preset temperature T1s, the first preset time T1s and the refrigerating temperature Tc are preset. The first preset temperature T1s refers to the corresponding temperature of the refrigerating sensor when the average temperature of the refrigerating chamber is close to 0 ℃, and the value can be obtained through experiments; the value of the first preset time t1s is generally more than 24 hours; the refrigerating temperature Tc refers to the refrigerating sensor temperature;
Stp02, when the refrigerator is in normal refrigeration, collecting the temperature of a refrigeration sensor, and determining the current Tc value;
the normal refrigeration of the refrigerator means that the refrigerator is in a non-fault mode, the refrigeration and the freezing can both normally refrigerate, and the opening or closing of the electric air door, the compressor and the refrigerating fan are controlled according to the refrigeration state of each chamber of the refrigerator, and the method is as follows:
When refrigerating, the electric air door, the compressor and the refrigerating motor are all opened;
when refrigeration is not performed and freezing and refrigerating are performed, the electric air door is closed, and the compressor and the refrigerating motor are both opened;
When the refrigeration and the freezing are not refrigeration, the electric air door, the compressor and the freezing motor are closed;
specifically, as shown in table 1, the normal mode refrigeration control table is shown.
Table 1 normal mode refrigeration control table
Stp03, judging whether the current Tc value is smaller than the T1s value, if yes, judging that the refrigeration is abnormal, and if no, judging that the refrigeration is normal and returning to the step Stp02;
Stp04, if the electric air door is in fault as a result of the judgment in the step 3, the refrigerator starts an air door fault operation program;
The air door fault operation program means that the refrigerator is in an air door fault mode, the compressor and the refrigerating fan are controlled to be opened or closed according to the refrigerating state of the refrigerating chamber of the refrigerator, the electric air door is in a normally open state, the refrigerating chamber does not independently refrigerate and passively refrigerates along with the refrigerating, and the air door fault operation program is shown in a fault mode refrigerating control table in table 2.
Table 2 fault mode refrigeration control table
Stp05, monitoring the running time of a refrigerator air door fault running program, and judging whether the running time of the air door fault running program is longer than a first preset time t1s;
And if the running time of the air door fault running program is longer than the first preset time t1s, stopping running the air door fault running program by the refrigerator and returning to the step Stp02, otherwise, returning to the step Stp05, and continuing to monitor the running time of the air door fault running program of the refrigerator.
The execution steps of the air door fault operation program are as follows:
Stp11, preset second preset temperature T2S, third preset temperature T3S, fourth preset temperature T4S, first preset rotation speed S1, second preset rotation speed S2 and freezing temperature Td;
the second preset temperature T2s and the third preset temperature T3s are respectively a refrigerating start-up temperature point and a refrigerating stop temperature point of the refrigerator under the air door fault operation program, the value of the T2s is larger than the value of the T3s, and the values can be obtained through experiments;
A fourth preset temperature T4s for dividing the freezing chamber into two temperature sections with T4s as a boundary;
The first preset rotating speed S1 and the second preset rotating speed S2 are the running rotating speeds of the refrigerating fans, and S1 is smaller than S2;
The freezing temperature Td refers to the freezing sensor temperature;
stp12, taking T2s as a starting temperature point and T3s as a stopping temperature point to control the refrigerator to refrigerate, and simultaneously collecting the temperature of a freezing sensor to determine the current Td value;
stp13, judging whether the Td value is larger than T4S, if yes, operating the refrigerating fan at the S1 rotating speed, otherwise, operating the refrigerating fan at the S2 rotating speed;
stp14, according to the output result of step Stp13, adjust the running speed of the refrigerating fan.
It should be noted that, in the above system embodiment, each unit included is only divided according to the functional logic, but not limited to the above division, so long as the corresponding function can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the present invention.
In addition, it will be understood by those skilled in the art that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program to instruct related hardware, and the corresponding program may be stored in a computer readable storage medium, such as a ROM/RAM, a magnetic disk or an optical disk, etc.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (2)
1. A refrigerator fault detection operation control system is characterized by comprising
The detection module is used for collecting temperature data and time signals and is respectively connected with the first judgment module, the second judgment module, the third judgment module and the first control module; the detection module comprises a temperature acquisition unit and a time acquisition unit; the temperature acquisition unit acquires refrigeration temperature and freezing temperature, sends the acquired refrigeration temperature data to the first judgment module, and sends the acquired freezing temperature data to the third judgment module; the time acquisition unit acquires the running time of the current air door fault running program and sends acquired time data to the second judgment module;
The first judging module is used for judging whether the refrigerator starts an air door fault operation program according to whether the refrigerating temperature value is smaller than a first preset temperature or not, and transmitting a judging result to the first control module;
The second judging module is connected with the detecting module and the first control module; the second judging module is used for judging whether the refrigerator closes the air door fault operation program according to whether the air door fault operation program operation time is longer than the first preset time or not, and transmitting a judging result to the first control module;
the first control module starts or closes the air door fault operation program according to the judging results of the first judging module and the second judging module;
the third judging module is used for judging whether the freezing temperature is higher than a fourth preset temperature or not and transmitting a judging result to the selecting module;
the selection module selects the corresponding running rotating speed of the refrigerating fan according to the judging result of the third judging module and transmits the instruction to the second control module; the second control module adjusts the running rotating speed of the refrigerating fan according to the selection result of the selection module;
The control method of the refrigerator fault detection operation control system comprises the following steps:
Stp01: presetting a first preset temperature T1s, a first preset time T1s and a refrigerating temperature Tc; the first preset temperature T1s refers to the temperature of a corresponding refrigeration sensor when the average temperature of the refrigeration chamber is close to 0 ℃; the refrigerating temperature Tc refers to the refrigerating sensor temperature;
Stp02, when the refrigerator is in normal refrigeration, collecting the temperature of a refrigeration sensor, and determining the current Tc value;
The normal refrigeration of the refrigerator means that the refrigerator is in a non-fault mode, both refrigeration and freezing can be performed normally, and the opening or closing of the electric air door, the compressor and the refrigerating fan is controlled according to the refrigeration state of each chamber of the refrigerator, and the method comprises the following steps:
When refrigerating, the electric air door, the compressor and the refrigerating motor are all opened;
when refrigeration is not performed and freezing and refrigerating are performed, the electric air door is closed, and the compressor and the refrigerating motor are both opened;
When the refrigeration and the freezing are not refrigeration, the electric air door, the compressor and the freezing motor are closed;
Stp03, judging whether the current Tc value is smaller than the T1s value, if yes, judging that the refrigeration is abnormal, and if no, judging that the refrigeration is normal and returning to the step Stp02;
Stp04, if the electric air door is in fault as a result of the judgment in the step 3, the refrigerator starts an air door fault operation program;
stp05, monitoring the running time of a refrigerator air door fault running program, and judging whether the running time of the air door fault running program is longer than a first preset time t1s;
Stp06, if the running time of the air door fault running program is longer than the first preset time t1s, stopping running the air door fault running program by the refrigerator and returning to the executing step Stp02, otherwise, returning to the executing step Stp05, and continuing to monitor the running time of the air door fault running program of the refrigerator;
The execution steps of the air door fault operation program are as follows:
Stp11, preset second preset temperature T2S, third preset temperature T3S, fourth preset temperature T4S, first preset rotation speed S1, second preset rotation speed S2 and freezing temperature Td;
the second preset temperature T2s and the third preset temperature T3s are respectively a refrigerating start-up temperature point and a refrigerating stop temperature point of the refrigerator under the air door fault operation program, the value of the T2s is larger than the value of the T3s, and the values are obtained through experiments;
A fourth preset temperature T4s for dividing the freezing chamber into two temperature sections with T4s as a boundary;
The first preset rotating speed S1 and the second preset rotating speed S2 are the running rotating speeds of the refrigerating fans, and S1 is smaller than S2;
the freezing temperature Td refers to the freezing sensor temperature;
stp12, taking T2s as a starting temperature point and T3s as a stopping temperature point to control the refrigerator to refrigerate, and simultaneously collecting the temperature of a freezing sensor to determine the current Td value;
stp13, judging whether the Td value is larger than T4S, if yes, operating the refrigerating fan at the S1 rotating speed, otherwise, operating the refrigerating fan at the S2 rotating speed;
stp14, according to the output result of step Stp13, adjust the running speed of the refrigerating fan.
2. The refrigerator malfunction detection operation control system according to claim 1, wherein the temperature collection unit is a temperature sensor installed in the refrigerating chamber and the freezing chamber, respectively.
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| CN109798730A (en) * | 2017-11-16 | 2019-05-24 | 合肥华凌股份有限公司 | The control method and control device and equipment of damper assemblies |
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| CN103471341A (en) * | 2013-09-24 | 2013-12-25 | 合肥美菱股份有限公司 | Refrigerator chamber supercooling fault detection system and detection method |
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