CN113883657B - Air conditioner external coil temperature sensor falling control method and air conditioner - Google Patents
Air conditioner external coil temperature sensor falling control method and air conditioner Download PDFInfo
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- CN113883657B CN113883657B CN202111318060.4A CN202111318060A CN113883657B CN 113883657 B CN113883657 B CN 113883657B CN 202111318060 A CN202111318060 A CN 202111318060A CN 113883657 B CN113883657 B CN 113883657B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner and a method for controlling falling of an outer coil temperature sensor of the air conditioner. The control method comprises the following steps: s1, starting the air conditioner, and operating T after the compressor is started 1 time period (ii) a S2, respectively obtaining T Inner ring 0s 、T Inner coil pipe 0s 、T Inner coil pipe T1 、T External coil pipe T1 、T Outer coil pipe 0s (ii) a S3, judging whether a first preset condition is met, if not, jumping to the step S5, and if so, executing the step S4; s4, judging whether a second preset condition is met, if not, executing the step S5, and if so, performing mode-based judgment; s5, the air conditioner operates according to the current mode; and S6, shutting down the air conditioner. The first preset condition is introduced firstly, so that the interference of the air conditioner in severe working conditions on the judgment of the falling of the outer coil pipe temperature sensor is eliminated, and the accuracy of subsequent detection is ensured. When the outer coil temperature sensor falls off, corresponding protective measures are taken according to different modes of operation of the air conditioner instead of a means of shutdown protection, so that the air conditioner is more flexible and convenient, and is suitable for different scenes.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method for controlling falling of an air conditioner outer coil pipe temperature sensor and an air conditioner.
Background
The air conditioner is an indispensable household appliance in daily life, brings coolness to users in hot summer, brings warmth to users in cold winter, and improves comfort of users. A plurality of temperature sensors, such as an outer coil temperature sensor, an inner coil temperature sensor, an indoor ambient temperature sensor, and an outdoor ambient temperature sensor, are generally provided in the air conditioner. When the temperature sensor is not inserted in place or falls off abnormally, the real temperature cannot be detected in the actual use process, so that the judgment of the air conditioner unit is abnormal in the operation process, and the normal operation of the air conditioner is influenced. As one of common faults, once a general air conditioner unit adopts a direct shutdown control mode, the user cannot continue to use the air conditioner unit, and the use experience of the user is influenced.
Disclosure of Invention
In view of the above, the present invention is directed to provide a method for controlling dropping of an external coil temperature sensor of an air conditioner and the air conditioner, so as to ensure that the air conditioner performs control in different modes when the external coil is abnormally dropped, thereby extending the operation reliability of the air conditioner.
The invention relates to a falling control method for an air conditioner external coil temperature sensor, which comprises the following steps:
s1, starting an air conditioner, and continuously operating a compressor for T1 time after the compressor is started;
s2, respectively obtaining T Inner ring 0s 、T Inner coil pipe 0s 、T Inner coil pipe T1 、T External coil pipe T1 、T Outer coil pipe 0s ；
S3, judging whether a first preset condition is met, if not, jumping to the step S5, and if so, executing the step S4;
s4, judging whether a second preset condition is met, and if not, executing the step S5;
s5, the air conditioner normally operates according to the current corresponding mode;
and S6, shutting down the air conditioner.
The first preset condition can not be met, the air conditioner is possibly in severe scenes such as valve blockage and the like, but the air conditioner can be normally protected and controlled without special treatment. The judgment of severe scene conditions such as a blocking valve is introduced, and the accuracy of the judgment of the falling of the subsequent outer coil temperature sensor can be ensured.
Further, in step S3, the first preset condition is | T Inner ring 0s -T Inner coil pipe 0s Less than or equal to A1 and T Inner coil pipe T1 -T Inner coil pipe 0s And | ≧ A2. The first preset condition includes two conditions, i.e., it is required to satisfy | T simultaneously Inner ring 0s -T Inner coil pipe 0s Less than or equal to A1 and T Inner coil pipe T1 -T Inner coil pipe 0s |≥A2。
Further, in step S4, the second preset condition is | T External coil pipe T1 -T Outer coil pipe 0s And (5) less than or equal to B. And introducing a second preset condition after the first preset condition is judged, and indicating that the outer coil temperature sensor is abnormally fallen when the second preset condition is met.
Further, in step S4, if yes, a split mode determination is performed. And when the outer coil temperature sensor is abnormally dropped, the mode judgment is carried out, the scene control is convenient, and corresponding protective measures are taken according to the operation mode of the air conditioner.
Further, the mode-based determination includes the following steps:
s411, judging whether the air conditioner is in a refrigerating mode or a heating mode, if not, executing a step S5, and if so, executing a step S412;
s412, judging whether the heating mode is adopted, if not, reducing the running frequency of the compressor, finally jumping to the step S6, and if so, executing the step S413;
and S413, judging whether a third preset condition is met or not, if so, normally heating and running the air conditioner, not judging defrosting, and finally jumping to the step S6, otherwise, stopping the air conditioner, and finally jumping to the step S6.
When the outer coil temperature sensor is abnormally dropped, the operation reliability of the air conditioner is not affected in a dehumidification mode or a ventilation mode, and the operation of the air conditioner is only affected adversely when the air conditioner is in a refrigeration mode or a heating mode. In the dehumidification mode or the ventilation mode, the air conditioner can continue to operate according to the current mode even if the external coil temperature sensor is dropped off. In the dehumidification mode or the ventilation mode, the cooling mode and the heating mode need to be further judged so as to adopt corresponding remedial and protective measures. When the outer coil temperature sensor is abnormally fallen off, if the air conditioner is in a refrigeration mode, the mode of reducing the running frequency of the compressor is adopted, the phenomenon that the outer coil temperature is too high due to the fact that the running frequency of the compressor is too high is avoided, the running reliability of the air conditioner is guaranteed, the air conditioner still has a refrigeration effect, and normal use of a user is not affected.
Further, in step S412, the operation frequency of the compressor is half of the highest frequency during cooling. The air conditioner still has the refrigeration effect, and avoids the compressor frequency of operation too high to lead to the outer coil pipe high temperature.
Further, in step S413, the third preset condition is the current outdoor environment temperature T Outer ring ≥C。
A third preset condition is further introduced under the heating mode to judge whether T is available Outer ring Not less than C. If T is Outer ring And C or more indicates that the air conditioner does not frost, can still operate according to a normal heating mode, and does not need to judge and execute a defrosting logic. If T is Outer ring < C, which indicates that although the air conditioner is operated in the heating mode, frost may be formed and the air conditioner employs a shutdown protection process.
Further, in the step S1, the time T1 is 2-10min. Compressor on and running T 1 After time, the temperature of the inner and outer coils changes.
Compared with the prior art, the falling control method for the temperature sensor of the air conditioner external coil pipe ensures that the cost is not increasedOn the basis, by monitoring T Inner ring 、T Inner coiled pipe 、T External coil pipe 、T Outer ring The reasonable full-mode control method for the falling of the outer coil of the air conditioner is designed, the defect that when the outer coil of the existing air conditioner falls off, only a single direct shutdown control mode can be adopted is overcome, the air conditioner is controlled in different modes, the running reliability of the air conditioner is expanded, and meanwhile, the brand complaint problems that shutdown protection is caused due to the falling of the outer coil and the air conditioner cannot be used in a maintenance waiting period in a part of after-sale maintenance peak period are solved.
The invention also provides an air conditioner, which comprises an outer coil temperature sensor, an inner coil temperature sensor, an indoor environment temperature sensor, an outdoor environment temperature sensor, a computer readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and run to realize the falling control method of the outer coil temperature sensor of the air conditioner.
The invention also provides a computer readable storage medium, which stores a computer program, and when the computer program is read and run by a processor, the method for controlling the falling of the temperature sensor of the external coil pipe of the air conditioner is realized.
The advantages of the air conditioner and the computer readable storage medium of the present invention over the prior art are the same as the advantages of the air conditioner external coil temperature sensor drop control method of the present invention over the prior art, and are not described herein again.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a method for controlling the falling of an external coil temperature sensor of an air conditioner according to the present invention.
Detailed Description
The inventive concepts of the present disclosure will be described hereinafter using terms commonly employed by those skilled in the art to convey the substance of their work to others skilled in the art. These inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The air conditioner is easy to have the phenomenon that a temperature sensor falls off or is plugged and loosened in frequent use, the outer coil temperature sensor falls off as one of common faults, and once the outer coil temperature sensor falls off, a direct shutdown control method is adopted, so that bad use experience can be brought to users. The invention provides a falling control method for an air conditioner external coil temperature sensor, which is applied to the following air conditioners. The air conditioner comprises a compressor, an indoor unit, an outdoor unit, an inner coil pipe and an outer coil pipe. The inner coil is arranged on the heat exchanger of the indoor unit, and the outer coil is arranged on the heat exchanger of the outdoor unit. The air conditioner also comprises an outer coil pipe temperature sensor arranged on the outdoor heat exchanger, an inner coil pipe temperature sensor arranged on the indoor heat exchanger, an indoor environment temperature sensor arranged indoors and an outdoor environment temperature sensor arranged outdoors. The outer coil temperature sensor is used for acquiring the temperature T of the outer coil External coiled pipe The inner coil temperature sensor is used for acquiring the temperature T of the inner coil Inner coiled pipe The indoor environment temperature sensor is used for acquiring indoor environment temperature T Inner ring The outdoor environment temperature sensor is used for acquiring outdoor environment temperature T Outer ring . On the basis of ensuring that the cost is not increased, the invention monitors T External coiled pipe 、T Inner coil pipe 、T Inner ring And T Outer ring A reasonable control method for the falling of the temperature sensor of the outer coil of the air conditioner is designed, and then intelligent protection measures are started for the air conditioner.
As shown in fig. 1, the control method includes the steps of:
s1, starting the air conditioner, and continuously running T after starting a compressor 1 Time;
after a compressor of the air conditioner is started, the air conditioner performs heating, refrigerating, dehumidifying or ventilating operation according to a preset mode. Compressor on and running T 1 After time, the temperature of the inner and outer coils changes. T is 1 The time can be flexibly set according to the actual working scene. Preferably, said T is 1 The time is 2-10min. More preferably, said T 1 The time is 3min.
S2, respectively obtaining T Inner ring 0s 、T Inner coil pipe 0s 、T Inner coil pipe T1 、T External coil pipe T1 、T Outer coil pipe 0s ；
Specifically, the T is Inner ring 0s Is the initial indoor ambient temperature at the compressor start-up time; the T is Inner coil pipe 0s Is the initial inner coil temperature at the start of the compressor, T Inner coil pipe T1 Is compressor operation T 1 Internal coil temperature after time, T External coil pipe T1 Is compressor operation T 1 Outside coil temperature after time, T Outer coil pipe 0s Is the initial outer coil temperature at the start of the compressor. Whether the outer coil pipe temperature sensor is not inserted in place or falls is further monitored and judged by utilizing the temperature sensor of the air conditioner unit, other detection equipment is not required to be additionally added, and whether the outer coil pipe temperature sensor falls or not is judged accurately and simply on the basis of ensuring that the cost is not increased, so that countermeasures can be taken in time, and the normal operation of the air conditioner is ensured. Obtaining T respectively by corresponding temperature sensors Inner ring 、T Inner coil pipe 、T External coil pipe And T Outer ring Is the prior art, and is not described herein again.
S3, judging whether a first preset condition is met, if not, executing a step S5, and if so, executing a step S4;
specifically, the first preset condition is | T Inner ring 0s -T Inner coil pipe 0s Less than or equal to A1 and T Inner coil pipe T1 -T Inner coil pipe 0s And | ≧ A2. If the first preset condition is not satisfied, the | T's cannot be satisfied simultaneously Inner ring 0s -T Inner coil pipe 0s Less than or equal to A1 and T Inner coil pipe T1 -T Inner coil pipe 0s | ≧ A2, which indicates that the air conditioner may be in bad conditions such as valve blockageUnder the working condition, the air conditioner normally operates according to the corresponding current mode. Under the condition that the first preset condition is not met, the air conditioner can also be normally protected and controlled no matter whether the air conditioner is in severe working conditions such as valve blockage or not, and special treatment is not needed. If the first preset condition is met, the phenomenon that the outer coil temperature sensor falls off is possibly caused, and the step S4 is needed to be further judged.
The judgment of severe working conditions such as a block valve is firstly introduced, the interference of the air conditioner in the severe working conditions such as the block valve on the judgment of the falling of the outer coil pipe temperature sensor is eliminated, the accuracy of the judgment of the subsequent falling scene of the outer coil pipe temperature sensor can be ensured, the condition of the outer coil pipe temperature sensor can be judged more accurately, and corresponding measures can be taken. The A1 is 2-8 ℃, and the A1 is preferably 3 ℃. The A2 is 2-8 ℃, and the A2 is preferably 3 ℃.
S4, judging whether a second preset condition is met, if not, executing the step S5, and if so, performing mode division judgment;
specifically, the second preset condition is | T External coil pipe T1 -T Outer coil pipe 0s And (5) less than or equal to B. The outer coil pipe temperature after the compressor operation T1 moment compares the outer coil pipe temperature at initial moment and can change, can detect whether the outer coil pipe sensor takes place to drop according to the temperature variation of outer coil pipe before the compressor starts. If the second preset condition is not met, the temperature T of the external coil pipe at the initial starting moment of the compressor Outer coil pipe 0s And compressor operation T 1 Time of day external coil temperature T External coil pipe T1 The absolute value of the difference value of (3) is larger, which indicates that the temperature sensor of the external coil pipe works normally and the temperature detection of the external coil pipe is accurate. The air conditioner exits the detection process and enters step S5 to normally operate according to the current corresponding mode. If the second preset condition is met, the temperature T of the outer coil pipe at the initial starting moment of the compressor Outer coil pipe 0s And compressor operation T 1 Time of day external coil temperature T External coil pipe T1 The absolute value of the difference value is small, which indicates that the temperature detection of the external coil pipe temperature sensor to the external coil pipe is inaccurate, the external coil pipe temperature sensor is plugged and loosened or abnormally drops, and corresponding protective measures need to be taken.
Specifically, the scene is judged according to the operation mode of the air conditioner. The mode entering judgment and scene control method comprises the following steps:
s411, judging whether the air conditioner is in a refrigerating mode or a heating mode, if not, executing a step S5, and if so, executing a step S412;
the operation modes of the air conditioner are generally classified into a cooling mode, a heating mode, a dehumidifying mode, and a ventilating mode. When the outer coil temperature sensor is abnormally dropped, the operation reliability of the air conditioner is not affected in a dehumidification mode or a ventilation mode, and the operation of the air conditioner is only affected adversely when the air conditioner is in a refrigeration mode or a heating mode. When the outer coil temperature sensor falls off, the current operation mode of the air conditioner is judged firstly, if the air conditioner is in the dehumidification mode and the ventilation mode, the air conditioner does not need to adopt the measure of shutdown control, and the air conditioner can continue to normally operate according to the current corresponding mode without being influenced until the air conditioner is shut down. Because the cooling mode and the heating mode can be affected by the abnormal falling of the temperature sensor of the outer coil, and the air conditioner is adversely affected, the cooling mode and the heating mode need to be further judged so as to adopt corresponding remedial and protective measures.
Furthermore, in any mode, when the outer coil temperature sensor is detected to fall off abnormally, an alarm can be given out firstly to remind a user timely, and the air conditioner is maintained timely under the condition that the air conditioner is not used. The maintenance is carried out in the peak period of using the air conditioner in summer and winter, and the negative influence on the brand of the air conditioner caused by the fact that maintenance personnel cannot maintain the air conditioner in time is reduced.
Even if the outer coil temperature sensor abnormally falls off, the normal use dehumidification mode and the ventilation mode of a user are not affected, and the processing mode of stopping the machine is directly adopted without the abnormal falling of the outer coil temperature sensor.
S412, judging whether the heating mode is adopted, if not, reducing the running frequency of the compressor, finally jumping to the step S6, and if so, executing the step S413;
when the outer coil temperature sensor is abnormally fallen off, if the air conditioner is in a refrigeration mode, the mode of reducing the running frequency of the compressor is adopted, the phenomenon that the outer coil temperature is too high due to the fact that the running frequency of the compressor is too high is avoided, the running reliability of the air conditioner is guaranteed, the air conditioner still has a refrigeration effect, and normal use of a user is not affected. The air conditioner adopts a mechanism of reducing the running frequency of the compressor until the air conditioner needs to be shut down, and the step S6 is skipped. Specifically, the compressor operating frequency is half of the highest frequency during refrigeration.
S413, judging whether the current outdoor environment temperature T is present Outer ring If the third preset condition is met, the air conditioner normally operates in a heating mode, defrosting is not judged, and finally the step S6 is skipped, if the third preset condition is not met, the air conditioner stops and the step S6 is skipped;
when the outer coil temperature sensor is abnormally dropped, if the air conditioner is in a heating mode, the current outdoor environment temperature T is further judged Outer ring . Specifically, the third preset condition is T Outer ring Not less than C. If T Outer ring And more than or equal to C, the condition indicates that the air conditioner does not frost, the air conditioner can still operate according to a normal heating mode, and the defrosting logic does not need to be judged and executed. The operation reliability of the air conditioner can be ensured, and the temperature sensor of the inner coil plays a role in high load protection. If T is Outer ring < C, which indicates that although the air conditioner is operated in the heating mode, frost may be formed and the air conditioner employs a shutdown protection process. The defrosting control and the temperature monitoring of the outer coil pipe are related, and the time of entering defrosting and exiting defrosting is judged according to the temperature of the outer coil pipe. The temperature sensor of the outer coil pipe abnormally falls off and can not accurately detect the temperature of the outer coil pipe, so that the frost can not be dissolved or quit from being dissolved in advance, the control of the frost can not play a role and the heating effect of the air conditioner is influenced. The performance of the air conditioner is greatly affected after frosting, and the risk of breaking and damaging the fan blades of the outdoor unit exists. Therefore, the air conditioner adopts shutdown protection to ensure the operation reliability. The determination of the value of C may be determined based on empirical values of air conditioner manufacturers. Preferably, said C is between 5 and 10 ℃. More preferably, the C is 7 ℃.
S5, the air conditioner normally operates according to the current corresponding mode;
and S6, shutting down the air conditioner.
According to the method for controlling the falling of the outer coil temperature sensor of the air conditioner, provided by the invention, the outer coil temperature sensor, the inner coil temperature sensor, the indoor environment temperature sensor and the outdoor environment temperature sensor which are arranged on the air conditioner are utilized, other detection equipment is not required to be added, and the falling control of the outer coil temperature sensor is realized on the basis of saving the production cost of the air conditioner. In the detection process, firstly, the judgment of whether the air conditioner is in bad working conditions such as valve blockage is introduced, and the interference of judging whether the outer coil temperature sensor abnormally falls off under the condition is eliminated, so that the whole detection and judgment process is more accurate and reliable. When the outer coil pipe temperature sensor of air conditioner appears and drops unusually, adopt the mode to control in a flexible way, rationally adjust operating condition, take corresponding measure according to the current mode of operation of air conditioner, but not unified direct shutdown protection, but expanded air conditioner operation is suitable for the scene, avoids appearing the complete machine and damages or the performance degradation, improves the reliability of air conditioner. Especially, in the peak period of using the air conditioner in summer and winter, if a shutdown protection means is adopted, the normal use of a user is influenced for a consumer, and for an air conditioner manufacturer, the maintenance waiting time is too long, so that the air conditioner brand is greatly influenced.
For the method for controlling the falling of the temperature sensor of the external coil of the air conditioner, the invention also provides the air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program. And when the computer program is read and operated by the processor, the falling control method of the temperature sensor of the external coil pipe of the air conditioner is realized. The invention also provides a computer readable storage medium, which stores a computer program, wherein the computer program is read by a processor and used for realizing each process of the air conditioner external coil pipe temperature sensor falling control method when the computer program is run.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A control method for falling of an external coil temperature sensor of an air conditioner is characterized by comprising the following steps:
s1, starting an air conditioner, and continuously operating T after a compressor is started 1 Time;
s2, respectively obtaining T Inner ring 0s 、T Inner coil pipe 0s 、T Inner coil pipe T1 、T External coil pipe T1 、T Outer coil pipe 0s Said T is Inner ring 0s Is the initial indoor ambient temperature at the compressor start-up time; the T is Inner coil pipe 0s Is the initial inner coil temperature at the start of the compressor, T Inner coil pipe T1 Is compressor operation T 1 Internal coil temperature after time, T External coil pipe T1 Is compressor operation T 1 Outside coil temperature after time, T Outer coil pipe 0s Is the initial outer coil temperature at the compressor start-up time;
s3, judging whether a first preset condition is met or not, wherein the first preset condition is | T |) Inner ring 0s -T Inner coil pipe 0s |≤A 1 And | T Inner coil pipe T1 -T Inner coil pipe 0s |≥A 2 Wherein A is 1 Is at a temperature of 2-8 ℃, A 2 If not, jumping to the step S5, and if yes, executing the step S4; if yes, performing mode division judgment, wherein the mode division judgment comprises the following steps:
s411, judging whether the air conditioner is in a refrigerating mode or a heating mode, if not, executing a step S5, and if so, executing a step S412;
s412, judging whether the heating mode is adopted, if not, reducing the running frequency of the compressor, finally jumping to the step S6, and if so, executing the step S413;
s413, judging whether a third preset condition is met, wherein the third preset condition is that the current outdoor environment temperature T is Outer ring If the temperature is not less than C, the air conditioner normally operates in a heating mode, defrosting is not judged, and finally the step S6 is skipped, if the temperature is not more than C, the air conditioner stops and the step S6 is skipped;
s4, judging whether a second preset condition is met or not, wherein the second preset condition is | T Outer platePipe T1 -T Outer coil pipe 0s If not, executing the step S5;
s5, the air conditioner normally operates according to the current corresponding mode;
and S6, shutting down the air conditioner.
2. The method as claimed in claim 1, wherein in step S412, the compressor operating frequency is half of the highest frequency during cooling.
3. The method as claimed in claim 1, wherein the T1 is a step of controlling the falling of the temperature sensor of the external coil of the air conditioner 1 The time is 2-10min.
4. An air conditioner, comprising an external coil temperature sensor, an internal coil temperature sensor, an indoor ambient temperature sensor, an outdoor ambient temperature sensor, a computer readable storage medium storing a computer program, and a processor, wherein the computer program, when read and executed by the processor, implements a drop control method for the external coil temperature sensor of the air conditioner according to any one of claims 1 to 3.
5. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which is read and executed by a processor, and implements the method for controlling the falling of the temperature sensor of the air conditioner external coil according to any one of claims 1 to 3.
Priority Applications (1)
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