CN111397089A - Air conditioner detection method, air conditioner and computer readable storage medium - Google Patents
Air conditioner detection method, air conditioner and computer readable storage medium Download PDFInfo
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- CN111397089A CN111397089A CN202010222788.6A CN202010222788A CN111397089A CN 111397089 A CN111397089 A CN 111397089A CN 202010222788 A CN202010222788 A CN 202010222788A CN 111397089 A CN111397089 A CN 111397089A
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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
- F24F11/30—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
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump 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
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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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
Abstract
The invention discloses a detection method of an air conditioner, the air conditioner and a computer readable storage medium, wherein the detection method of the air conditioner comprises the following steps: controlling the compressor to operate for a first preset time according to the first operating condition parameter, and acquiring a first temperature parameter of the air conditioner; determining that the air conditioner has suspected faults according to the first temperature parameter, controlling the compressor to operate according to the second operating condition parameter and reducing the rotating speed of the fan, and acquiring a second temperature parameter of the air conditioner within a second preset time; and determining the running state of the air conditioner according to the second temperature parameter. According to the invention, the fault state of the air conditioner is judged in a double detection mode, so that the detection result is more accurate and reliable; secondly, the temperature of the air conditioner can be changed faster by reducing the rotating speed of the fan during the secondary detection, so that the second temperature parameter can be obtained faster, and the detection process is quicker and more time-saving.
Description
Technical Field
The present invention relates to the field of electronic devices, and in particular, to a detection method for an air conditioner, and a computer-readable storage medium.
Background
For the existing air conditioner, on one hand, the capillary throttling device of the air conditioner has small aperture and is easy to cause blockage; after the air conditioner installer installs the air conditioner, the air conditioner installer may forget to open the high pressure valve and the low pressure valve, which may result in system blockage. On the other hand, the air conditioning refrigerant may leak due to poor welding or poor mounting.
When the air conditioner is blocked or the refrigerant leaks, if the compressor still continues to operate, the rare earth permanent magnet of the motor of the compressor is likely to be demagnetized due to high temperature. Therefore, it is necessary to detect the operation state of the air conditioner and to detect the blockage of the air conditioner or the refrigerant leakage failure. However, the conventional detection method takes a long time and has low accuracy.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a detection method of an air conditioner, an operation control device, the air conditioner and a computer readable storage medium, which can quickly and accurately judge the working state of the air conditioner.
The detection method of the air conditioner according to the embodiment of the first aspect of the invention comprises the following steps:
controlling a compressor to operate for a first preset time according to a first operating condition parameter, and acquiring a first temperature parameter of the air conditioner;
determining that the air conditioner has suspected faults according to the first temperature parameter, controlling the compressor to operate according to a second operating condition parameter and controlling the rotating speed of the fan to be reduced, and acquiring a second temperature parameter of the air conditioner within a second preset time;
and determining the running state of the air conditioner according to the second temperature parameter.
The detection method of the air conditioner provided by the embodiment of the invention at least has the following beneficial effects: the air conditioner fault state detection method and the air conditioner fault state detection device can judge the fault state of the air conditioner in a double detection mode to enable the detection result to be more accurate and reliable by controlling the compressor to respectively operate for corresponding preset time under the first operation condition parameter and the second operation condition parameter, reducing the rotating speed of the fan during the operation condition parameter switching period, then obtaining the first temperature parameter and the second temperature parameter of the air conditioner corresponding to the two operation condition parameters, firstly judging the operation state of the air conditioner for the first time according to the first temperature parameter, and then judging the operation state of the air conditioner again according to the second temperature parameter; secondly, the temperature of the air conditioner can be changed faster by reducing the rotating speed of the fan during the secondary detection, so that the second temperature parameter can be obtained faster, and the detection process is quicker and more time-saving.
According to some embodiments of the invention, the obtaining the first temperature parameter of the air conditioner comprises: acquiring a first indoor environment temperature value and a first indoor unit evaporator coil temperature value;
correspondingly, the determining that the suspected fault exists in the air conditioner according to the first temperature parameter includes: and calculating a first indoor temperature difference value between the first indoor environment temperature value and the first indoor unit evaporator coil temperature value, and determining that the suspected fault exists in the air conditioner when the first indoor temperature difference value is smaller than a preset first indoor temperature difference threshold value.
According to some embodiments of the invention, the obtaining the second temperature parameter of the air conditioner comprises: acquiring a second indoor environment temperature value and a second indoor unit evaporator coil temperature value;
correspondingly, the determining the operating state of the air conditioner according to the second temperature parameter includes: and calculating a second indoor temperature difference value between the second indoor environment temperature value and the second indoor unit evaporator coil temperature value, and determining that the air conditioner has a fault when the second indoor temperature difference value is smaller than a preset second indoor temperature difference threshold value within a second preset time.
According to some embodiments of the invention, the fan is an indoor fan.
According to some embodiments of the invention, the obtaining the first temperature parameter of the air conditioner comprises: acquiring a temperature value of a coil pipe of a condenser of a first outdoor unit and a first outdoor environment temperature value;
correspondingly, the determining that the suspected fault exists in the air conditioner according to the first temperature parameter includes: and calculating a first outdoor temperature difference value between the first outdoor unit condenser coil temperature value and the first outdoor environment temperature value, and determining that the suspected fault exists in the air conditioner when the first outdoor temperature difference value is smaller than a preset first outdoor temperature difference threshold value.
According to some embodiments of the invention, the obtaining the second temperature parameter of the air conditioner comprises: acquiring a second outdoor unit condenser coil temperature value and a second outdoor environment temperature value;
correspondingly, the determining the operating state of the air conditioner according to the second temperature parameter includes: and calculating a second outdoor temperature difference value between the second outdoor unit condenser coil temperature value and the second outdoor environment temperature value, and determining that the air conditioner has a fault when the second outdoor temperature difference value is always smaller than a preset second outdoor temperature difference threshold value within a second preset time.
According to some embodiments of the invention, the fan is an outdoor fan.
According to some embodiments of the invention, the first operating condition parameter and the second operating condition parameter comprise: the motor running frequency and/or the motor running speed of the compressor.
According to some embodiments of the invention, the first operating condition parameter and the second operating condition parameter further comprise: a cooling mode or a heating mode.
An operation control apparatus according to an embodiment of a second aspect of the present invention includes at least one control processor and a memory for communicative connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the detection method of the air conditioner as described above.
The operation control device according to the embodiment of the invention has at least the following beneficial effects: the operation control device of the invention stores a first operation condition parameter, a second operation condition parameter, a first preset time, a second preset time and a rotating speed, in the process of detecting the operation state of the air conditioner, the operation control device can control the compressor to operate for the corresponding preset time under the first operation condition parameter and the second operation condition parameter respectively, and also reduce the rotating speed of the fan during the period of switching the operation condition parameters, then obtain the first temperature parameter and the second temperature parameter of the air conditioner corresponding to the two operation condition parameters, firstly judge the operation state of the air conditioner for the first time according to the first temperature parameter, and then judge the operation state of the air conditioner again according to the second temperature parameter, therefore, the invention judges the fault state of the air conditioner in a double detection mode, so that the detection result is more accurate and reliable; secondly, the temperature of the air conditioner can be changed faster by reducing the rotating speed of the fan during the secondary detection, so that the second temperature parameter can be obtained faster, and the detection process is quicker and more time-saving.
The air conditioner according to the third aspect of the embodiment of the present invention includes a compressor, a fan, and the operation control device as described above, and the compressor and the fan are both electrically connected to the operation control device.
The air conditioner provided by the embodiment of the invention at least has the following beneficial effects: the air conditioner of the invention comprises a compressor, a fan and an operation control device, wherein the operation control device is internally stored with a first operation condition parameter, a second operation condition parameter, a first preset time, a second preset time and a rotating speed, in the process of detecting the operation state of the air conditioner, the operation control means may control the compressor to operate for corresponding preset times under the first and second operation condition parameters, respectively, and also reduce the rotation speed of the fan during switching of the operation condition parameters, then obtaining a first temperature parameter and a second temperature parameter of the air conditioner corresponding to the two operation condition parameters, firstly judging the running state of the air conditioner according to the first temperature parameter, then judging the running state of the air conditioner again according to the second temperature parameter, therefore, the fault state of the air conditioner is judged in a double detection mode, so that the detection result is more accurate and reliable; secondly, the temperature of the air conditioner can be changed faster by reducing the rotating speed of the fan during the secondary detection, so that the second temperature parameter can be obtained faster, and the detection process is quicker and more time-saving.
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the detection method of an air conditioner as described above.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of an operation control device provided in an embodiment of the present application;
fig. 2 is a flowchart of a detection method of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart of a detection method of an air conditioner according to another embodiment of the present invention;
fig. 4 is a flowchart of a detection method of an air conditioner according to another embodiment of the present invention;
fig. 5 is a flowchart of a detection method of an air conditioner according to another embodiment of the present invention;
fig. 6 is a flowchart of a detection method of an air conditioner according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
At present, for air conditioners on the market, on one hand, capillary throttling devices of the air conditioners have small apertures and are easy to block; after the air conditioner installer installs the air conditioner, the air conditioner installer may forget to open the high pressure valve and the low pressure valve, which may result in system blockage. On the other hand, the air conditioning refrigerant may leak due to poor welding or poor mounting. After the air conditioner is blocked, when the compressor is started to operate, the refrigerant of the air conditioner can not normally circulate, and the heat generated by the motor of the compressor can not be taken away through the flow of the refrigerant, so that the temperature in the compressor can continuously rise, the rare earth permanent magnet of the motor of the compressor can be demagnetized due to high temperature, and the permanent damage of the compressor can be caused. After the air conditioning refrigerant leaks, the heat generated by the motor in the running process of the compressor motor cannot be taken away through the flowing of the refrigerant, and high-temperature demagnetization damage can be caused.
In order to avoid compressor demagnetization damage caused by air conditioner blockage or refrigerant leakage, in the prior art scheme, whether the air conditioner is blocked or the refrigerant is leaked is often judged by detecting the refrigeration and heating effects of the air conditioner. The common method for judging the cooling and heating effects is to detect the indoor environment temperature and the indoor machine evaporator coil temperature and judge the cooling and heating effects according to the temperature difference between the indoor environment temperature and the indoor machine evaporator coil temperature. When in refrigeration, if the difference value between the indoor environment temperature and the indoor unit evaporator coil temperature is larger, the better the refrigeration effect is; when heating, if the difference between the temperature of the indoor unit evaporator coil and the indoor environment temperature is larger, the heating effect is better. However, this prior art solution has two disadvantages, the first one being: the refrigeration and heating of the air conditioner needs a period of time, generally more than one hour is needed to accurately judge the refrigeration and heating effects, and after the air conditioner is blocked, the compressor is easy to demagnetize at high temperature after being high-speed for one hour; the second disadvantage is that: under different indoor temperature conditions and when the indoor unit fan works at different rotating speeds, the temperature difference between the indoor unit fan and the indoor unit fan is different, so that misjudgment is possible.
Based on the above, the invention provides a detection method of an air conditioner, the air conditioner, an operation control device and a computer readable storage medium, which only need to control a compressor to operate for corresponding preset time under two operation condition parameters and reduce the rotating speed of a fan, obtain two corresponding temperature parameters of the air conditioner and then carry out double detection judgment on the operation state of the air conditioner according to the two temperature parameters. Compared with the existing detection means, the air conditioner temperature detection method has the advantages that a double detection and judgment mode is adopted, the detection result is more accurate and reliable, in addition, the temperature of the air conditioner can be changed more quickly by reducing the rotating speed of the fan in the secondary detection period, so that the temperature parameter can be obtained more quickly, in addition, the detection is not needed to be carried out after the compressor is operated for a long time to achieve the cooling or heating effect of the air conditioner, and the detection process is quicker and more time-saving.
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1, fig. 1 is a schematic diagram of an operation control apparatus 100 for performing a detection method of an air conditioner according to an embodiment of the present invention. The operation control apparatus 100 according to the embodiment of the present invention may be built in an air conditioner, and includes one or more control processors 110 and a memory 120, and fig. 1 illustrates one control processor 110 and one memory 120 as an example.
The control processor 110 and the memory 120 may be connected by a bus or other means, such as by a bus connection in fig. 1.
The memory 120, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. Further, the memory 120 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 120 may optionally include memory 120 located remotely from the control processor 110, and these remote memories may be connected to the operation control device 100 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Those skilled in the art will appreciate that the configuration of the apparatus shown in FIG. 1 does not constitute a limitation of the operation control apparatus 100, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
In the operation control device 100 shown in fig. 1, the control processor 110 may be configured to call an air conditioner detection program stored in the memory 120 to implement the air conditioner detection method.
Based on the hardware configuration of the operation control device 100, various embodiments of the detection method of the air conditioner of the present invention are proposed.
Referring to fig. 2, fig. 2 is a flowchart of a detection method of an air conditioner according to an embodiment of the present invention, the detection method of the air conditioner includes, but is not limited to, the following steps:
s210: controlling the compressor to operate for a first preset time according to the first operating condition parameter, and acquiring a first temperature parameter of the air conditioner;
s220: determining that the air conditioner has suspected faults according to the first temperature parameter, controlling the compressor to operate according to the second operating condition parameter and controlling the rotating speed of the fan to be reduced, and acquiring a second temperature parameter of the air conditioner within a second preset time;
s230: and determining the running state of the air conditioner according to the second temperature parameter.
It is understood that the detection method of the air conditioner in the embodiment of the present invention may be applied to a central air conditioner, a wall-mounted air conditioner, a cabinet air conditioner, or other types of air conditioners. Secondly, the basic idea of the embodiment of the invention is to control the compressor to respectively operate for corresponding preset time under two operation condition parameters, reduce the rotating speed of the fan during the switching of the operation condition parameters, then obtain two temperature parameters of the air conditioner corresponding to the two operation condition parameters, and finally perform double detection and judgment on the operation state of the air conditioner according to the two temperature parameters.
In an embodiment, in the detection process of the operation state of the air conditioner, the embodiment of the invention adopts a double detection judgment mode. For the primary detection process, the embodiment of the invention can control the compressor to operate for a first preset time under the first operation condition parameter, then obtain the first temperature parameter corresponding to the air conditioner, finally judge whether the air conditioner has a suspected fault according to the obtained first temperature parameter, and if the air conditioner is judged to have the suspected fault, further execute a secondary detection process. For the secondary detection process, the embodiment of the invention can change the operation condition parameters of the compressor, so that the compressor operates under the second operation condition parameters and the rotating speed of the fan is reduced, then the compressor is controlled to operate for the second preset time, the second temperature parameter of the air conditioner within the second preset time is obtained, and finally the operation state of the air conditioner is judged according to the obtained second temperature parameter, so that whether the air conditioner is in a fault state or a normal state is finally determined. Therefore, the embodiment of the invention judges the running state of the air conditioner in a double detection mode, so that the detection result is more accurate and reliable; in addition, the temperature of the air conditioner can be changed faster by reducing the rotating speed of the fan during secondary detection, so that the second temperature parameter can be obtained faster, and the detection is carried out after the compressor does not need to be operated for a long time to achieve the effect of cooling or heating of the air conditioner, so that the detection process is quicker and more time-saving.
It should be noted that, for the secondary detection process, the embodiment of the present invention may always obtain the second temperature parameter of the air conditioner within the second preset time, and continuously determine the operation state of the air conditioner based on the always obtained second temperature parameter. In addition, the fault state of the air conditioner in the embodiment of the invention includes a blockage state or a refrigerant leakage state.
In addition, it should be noted that the first operating condition parameter and the second operating condition parameter may be a motor operating frequency and/or a motor operating rotational speed of the compressor, wherein the motor operating frequency and the motor operating rotational speed substantially correspond to each other. Therefore, in the primary detection process, the embodiment of the invention can control the compressor to operate at the first motor operation frequency or the first motor operation speed; in the secondary detection process, the embodiment of the invention can control the compressor to operate at the second motor operation frequency or the second motor operation speed. Wherein, if make the air conditioner move under the state of high load, will do benefit to and discern the air conditioner fault status and detect, but if make the air conditioner directly move under the state of high load in a trade, if the air conditioner has had the trouble, the compressor lacks sufficient refrigerant and cools off it, will easily make the compressor burn out. Therefore, in order to ensure the safety in the detection process, the embodiment of the invention can firstly enable the compressor to run at low frequency or low speed in the primary detection process, and then gradually increase the motor running frequency or the motor running rotating speed of the compressor if the air conditioner is judged to be suspected to have a fault, so that the compressor runs at high frequency or high speed in the secondary detection process, thereby ensuring the safety in the detection process of the embodiment of the invention and simultaneously considering the accuracy. In an actual air conditioner detection process, the operating frequency of the first motor can be 50Hz to 60Hz, and the operating frequency of the second motor can be 70Hz to 90Hz, wherein in order to achieve a better detection effect, the operating frequency of the first motor can be 50Hz, and the operating frequency of the second motor can be 80 Hz.
The first operating condition parameter and the second operating condition parameter may include a cooling mode or a heating mode. In order to save the detection time, the embodiment of the present invention does not need to switch between the cooling mode and the heating mode, and only executes the steps S210, S220, and S230 in a single mode, thereby greatly shortening the detection time and making the detection period faster and more convenient.
It can be understood that, in the primary detection process, the first temperature parameter of the air conditioner is obtained only after the compressor is controlled to operate for the first preset time according to the first operation condition parameter in the embodiment of the invention, so that the first temperature parameter is obtained only after the air conditioner is in a stable state in the primary detection process, the obtained first temperature parameter is more accurate and reliable, and the accuracy of the primary detection process is improved. In addition, in the secondary detection process, after the rotating speed of the fan is reduced, the compressor is controlled to operate for a second preset time under the second operation condition parameter, the second temperature parameter of the air conditioner can be always obtained within the second preset time, and the operation state of the air conditioner is continuously judged always based on the always obtained second temperature parameter, so that the secondary detection process is more accurate and reliable, and the accuracy of the secondary detection process is improved. In the actual air conditioner detection process, the first preset time and the second preset time can both take values of 3 minutes to 10 minutes, wherein in order to achieve a better detection effect, the first preset time and the second preset time can both take values of 5 minutes.
In addition, it should be noted that the control of the reduction of the rotation speed of the fan includes a case where the fan is stopped.
In addition, the type of the fan may be an indoor fan or an outdoor fan.
When the fan is an indoor unit fan, the first temperature parameter and the second temperature parameter may correspondingly include an indoor environment temperature value and an indoor unit evaporator coil temperature value, and the analysis may be specifically divided into, but not limited to, the following several embodiments:
in an embodiment, when the fan is an indoor unit fan, the present invention provides a flowchart of a detection method of an air conditioner, as shown in fig. 3, fig. 3 is a flowchart illustrating a process after a range of a first temperature parameter in steps S210 and S220 in fig. 2 is expanded, including but not limited to the following steps:
s310: acquiring a first indoor environment temperature value and a first indoor unit evaporator coil temperature value;
s320: and calculating a first indoor temperature difference value between the first indoor environment temperature value and the first indoor unit evaporator coil temperature value, and determining that the suspected fault exists in the air conditioner when the first indoor temperature difference value is smaller than a preset first indoor temperature difference threshold value.
In the primary detection process, a first indoor environment temperature value and a first indoor unit evaporator coil temperature value are obtained after a compressor is controlled to operate for a first preset time under a first operation condition parameter, then a first indoor temperature difference value is calculated based on the obtained first indoor environment temperature value and the first indoor unit evaporator coil temperature value, and if the calculated first indoor temperature difference value is smaller than a preset first indoor temperature difference threshold value, the suspected fault of the air conditioner is preliminarily judged; if the calculated first indoor temperature difference value is greater than or equal to a preset first indoor temperature difference threshold value, the air conditioner can be directly confirmed to be in a normal state.
It should be noted that, in the cooling mode, the first indoor temperature difference may be calculated by the following formula:
Tin1-C＝T1-T2
wherein, T1Is a first indoor ambient temperature value, T2Is firstIndoor set evaporator coil temperature value, Tin1-CIs the first indoor temperature difference in the cooling mode during the primary detection. In addition, for the preset first indoor temperature difference threshold, the embodiment of the invention may adopt Δ Tin1To perform the presentation. If Tin1-C＜ΔTin1Then it can be determined that there is a suspected fault with the air conditioner.
In addition, in the heating mode, the first indoor temperature difference may be calculated by the following equation:
Tin1-H＝T2-T1
wherein, Tin1-HIs a first indoor temperature difference in the heating mode during the primary detection. If Tin1-H＜ΔTin1Then it can be determined that there is a suspected fault with the air conditioner.
For the first indoor temperature difference threshold Δ T described abovein1The value can be 1.5 ℃ to 2.5 ℃, wherein, in order to achieve better detection effect, the first indoor temperature difference threshold value delta Tin1The value can be taken as 2 ℃.
In another embodiment, when the fan is an indoor unit fan, the present invention provides a flowchart of a detection method of an air conditioner, as shown in fig. 4, fig. 4 is a flowchart illustrating a process after a range of a second temperature parameter in steps S220 and S230 in fig. 2 is expanded, including but not limited to the following steps:
s410: acquiring a second indoor environment temperature value and a second indoor unit evaporator coil temperature value;
s420: and calculating a second indoor temperature difference value between the second indoor environment temperature value and the second indoor unit evaporator coil temperature value, and determining that the air conditioner has a fault when the second indoor temperature difference value is always smaller than a preset second indoor temperature difference threshold value in a second preset time.
If the suspected fault exists in the air conditioner, in the secondary detection process, under the condition that the working frequency or the working rotating speed of a motor of a fan of the indoor unit is reduced, the compressor is controlled to operate for a second preset time under a second operation condition parameter, a second indoor environment temperature value and a second indoor unit evaporator coil temperature value are obtained in the second preset time, then a second indoor temperature difference value is calculated based on the obtained second indoor environment temperature value and the second indoor unit evaporator coil temperature value, and if the calculated second indoor temperature difference value is smaller than a preset second indoor temperature difference threshold value in the second preset time, the fault of the air conditioner is finally confirmed; and finally confirming that the air conditioner is in a normal state if the calculated second indoor temperature difference value is greater than or equal to the second indoor temperature difference threshold value within the second preset time.
It should be noted that, in the cooling mode, the second indoor temperature difference may be calculated by the following formula:
Tin2-C＝T3-T4
wherein, T3Is a second indoor ambient temperature value, T4Is the temperature value of the second indoor unit evaporator coil, Tin2-CIs the second indoor temperature difference in the secondary detection process in the cooling mode. In addition, for the preset second indoor temperature difference threshold, the embodiment of the invention may adopt Δ Tin2To perform the presentation. If Tin2-C＜ΔTin2It may be finally determined that the air conditioner has a failure.
In addition, in the heating mode, the second indoor temperature difference may be calculated by the following equation:
Tin2-H＝T4-T3
wherein, Tin2-HIs the second indoor temperature difference in the heating mode during the second detection. If Tin2-H＜ΔTin2It may be finally determined that the air conditioner has a failure.
For the second indoor temperature difference threshold Δ T described abovein2The value can be 2.5 ℃ to 3.5 ℃, wherein, in order to achieve better detection effect, the second indoor temperature difference threshold value delta Tin2The value can be 3 ℃.
When the fan is an outdoor unit fan, the first temperature parameter and the second temperature parameter may correspondingly include an outdoor environment temperature value and an outdoor unit condenser coil temperature value, and the analysis may be specifically divided into, but not limited to, the following embodiments:
in an embodiment, when the fan is an outdoor unit fan, the present invention provides a flowchart of a detection method of an air conditioner, as shown in fig. 5, fig. 5 is a flowchart illustrating a process after a range of a first temperature parameter in steps S210 and S220 in fig. 2 is expanded, including but not limited to the following steps:
s510: acquiring a temperature value of a coil pipe of a condenser of a first outdoor unit and a first outdoor environment temperature value;
s520: and calculating a first outdoor temperature difference value between the first outdoor unit condenser coil temperature value and a first outdoor environment temperature value, and determining that the suspected fault exists in the air conditioner when the first outdoor temperature difference value is smaller than a preset first outdoor temperature difference threshold value.
In the primary detection process, after controlling a compressor to operate for a first preset time under a first operation condition parameter, acquiring a first outdoor unit condenser coil temperature value and a first outdoor environment temperature value, then calculating a first outdoor temperature difference value based on the acquired first outdoor unit condenser coil temperature value and the first outdoor environment temperature value, and if the calculated first outdoor temperature difference value is smaller than a preset first outdoor temperature difference threshold value, preliminarily judging that the air conditioner has suspected faults; if the calculated first outdoor temperature difference value is larger than or equal to the preset first outdoor temperature difference threshold value, the air conditioner can be directly confirmed to be in a normal state.
It should be noted that, in the cooling mode, the first outdoor temperature difference value may be calculated by the following formula:
Tout1-C＝T5-T6
wherein, T5Is the temperature value T of the first outdoor unit condenser coil6Is a first outdoor ambient temperature value, Tout1-CIs the first outdoor temperature difference in the refrigeration mode during the primary detection. In addition, for the preset first outdoor temperature difference threshold, the embodiment of the invention may adopt Δ Tout1To perform the presentation. If Tout1-C＜ΔTout1Then it can be determined that an air conditioner existsA suspected failure.
In addition, in the heating mode, the first outdoor temperature difference may be calculated by the following formula:
Tout1-H＝T6-T5
wherein, Tout1-HIs the first outdoor temperature difference in the heating mode during the primary detection. If Tout1-H＜ΔTout1Then it can be determined that there is a suspected fault with the air conditioner.
Threshold Δ T for the first outdoor temperature difference mentioned aboveout1The value can be 1.5 ℃ to 2.5 ℃, wherein, in order to achieve better detection effect, the first outdoor temperature difference threshold value delta Tout1The value can be taken as 2 ℃.
In another embodiment, when the fan is an outdoor unit fan, the present invention provides a flowchart of a detection method of an air conditioner, as shown in fig. 6, fig. 6 is a flowchart illustrating a process after expanding a range of the second temperature parameter in steps S220 and S230 in fig. 2, including but not limited to the following steps:
s610: acquiring a second outdoor unit condenser coil temperature value and a second outdoor environment temperature value;
s620: and calculating a second outdoor temperature difference value between the second outdoor unit condenser coil temperature value and a second outdoor environment temperature value, and determining that the air conditioner has a fault when the second outdoor temperature difference value is always smaller than a preset second outdoor temperature difference threshold value within a second preset time.
If the suspected fault exists in the air conditioner, in the secondary detection process, under the condition that the working frequency or the working rotating speed of a motor of an outdoor unit fan is reduced, the compressor is controlled to operate for a second preset time under a second operation condition parameter, a second outdoor unit condenser coil temperature value and a second outdoor environment temperature value are obtained in the second preset time, then a second outdoor temperature difference value is calculated based on the obtained second outdoor unit condenser coil temperature value and the second outdoor environment temperature value, and if the calculated second outdoor temperature difference value is smaller than a preset second outdoor temperature difference threshold value in the second preset time, the fault of the air conditioner is finally confirmed; and finally confirming that the air conditioner is in a normal state if the calculated second outdoor temperature difference value is greater than or equal to the second outdoor temperature difference threshold value within the second preset time.
It should be noted that, in the cooling mode, the second outdoor temperature difference may be calculated by the following formula:
Tout2-C＝T7-T8
wherein, T7Is the temperature value T of the second outdoor unit condenser coil8Is a second outdoor ambient temperature value, Tout2-CIs the second outdoor temperature difference in the secondary detection process in the cooling mode. In addition, for the preset second outdoor temperature difference threshold, the embodiment of the invention may adopt Δ Tout2To perform the presentation. If Tout2-C＜ΔTout2It may be finally determined that the air conditioner has a failure.
In addition, in the heating mode, the second outdoor temperature difference may be calculated by the following formula:
Tout2-H＝T8-T7
wherein, Tout2-HIs the second outdoor temperature difference in the heating mode during the secondary detection. If Tout2-H＜ΔTout2It may be finally determined that the air conditioner has a failure.
Threshold Δ T for the second outdoor temperature difference mentioned aboveout2The value can be 2.5 ℃ to 3.5 ℃, wherein, in order to achieve better detection effect, the second outdoor temperature difference threshold value delta Tout2The value can be 3 ℃.
Based on the detection method and the operation control device of the air conditioner, another embodiment of the present invention provides an air conditioner, which includes a compressor, a fan, and the operation control device 100 as described above, wherein both the compressor and the fan are electrically connected to the operation control device 100.
Furthermore, it can be understood that the air conditioner of the embodiment of the present invention further includes a throttling device, an indoor unit evaporator and an outdoor unit condenser, wherein the indoor unit evaporator is provided with an indoor unit evaporator coil, and the outdoor unit condenser is provided with an outdoor unit condenser coil. In addition, the fan can be an indoor fan or an outdoor fan.
It should be noted that if the indoor ambient temperature, the outdoor ambient temperature, the indoor unit evaporator coil temperature or the outdoor unit condenser coil temperature needs to be obtained, a temperature sensor may be disposed at a corresponding place.
Specifically, the air conditioner according to the embodiment of the present invention includes a compressor, a fan, and an operation control device 100, wherein a first operation condition parameter, a second operation condition parameter, a first preset time, a second preset time, and a rotation speed are stored in the operation control device 100, in a process of detecting an operation state of the air conditioner, in the process of detecting the operation state of the air conditioner, the operation control device 100 may control the compressor to operate for corresponding preset times under the first operation condition parameter and the second operation condition parameter, respectively, and further reduce the rotation speed of the fan during switching the operation condition parameters, then obtain a first temperature parameter and a second temperature parameter of the air conditioner corresponding to the two operation condition parameters, and firstly primarily judge an operation state of the air conditioner according to the first temperature parameter, and then secondarily judge an operation state of the air conditioner according to the second temperature parameter.
Since the air conditioner in this embodiment has the operation control device 100 in any of the embodiments, the air conditioner in this embodiment has the hardware structure of the operation control device 100 in the embodiments, and the control processor 110 in the operation control device 100 can call the control program of the air conditioner stored in the memory 120 to implement the detection method of the air conditioner.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, which are executed by one or more control processors 110, for example, by one control processor 110 in fig. 1, and can cause the one or more control processors 110 to execute the detection method of the air conditioner in the above-described method embodiment, for example, execute steps S210, S220, and S230 in fig. 2, steps S310 and S320 in fig. 3, steps S410 and S420 in fig. 4, steps S510 and S520 in fig. 5, and steps S610 and S620 in fig. 6, which are described above.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope of the present invention defined by the claims.
Claims (12)
1. A detection method of an air conditioner is characterized by comprising the following steps:
controlling a compressor to operate for a first preset time according to a first operating condition parameter, and acquiring a first temperature parameter of the air conditioner;
determining that the air conditioner has suspected faults according to the first temperature parameter, controlling the compressor to operate according to a second operating condition parameter and controlling the rotating speed of the fan to be reduced, and acquiring a second temperature parameter of the air conditioner within a second preset time;
and determining the running state of the air conditioner according to the second temperature parameter.
2. The method for detecting the air conditioner according to claim 1, wherein the obtaining the first temperature parameter of the air conditioner comprises: acquiring a first indoor environment temperature value and a first indoor unit evaporator coil temperature value;
correspondingly, the determining that the suspected fault exists in the air conditioner according to the first temperature parameter includes: and calculating a first indoor temperature difference value between the first indoor environment temperature value and the first indoor unit evaporator coil temperature value, and determining that the suspected fault exists in the air conditioner when the first indoor temperature difference value is smaller than a preset first indoor temperature difference threshold value.
3. The method for detecting the air conditioner according to claim 1, wherein the obtaining of the second temperature parameter of the air conditioner comprises: acquiring a second indoor environment temperature value and a second indoor unit evaporator coil temperature value;
correspondingly, the determining the operating state of the air conditioner according to the second temperature parameter includes: and calculating a second indoor temperature difference value between the second indoor environment temperature value and the second indoor unit evaporator coil temperature value, and determining that the air conditioner has a fault when the second indoor temperature difference value is smaller than a preset second indoor temperature difference threshold value within a second preset time.
4. The detection method of the air conditioner according to claim 3, wherein the fan is an indoor unit fan.
5. The method for detecting the air conditioner according to claim 1, wherein the obtaining the first temperature parameter of the air conditioner comprises: acquiring a temperature value of a coil pipe of a condenser of a first outdoor unit and a first outdoor environment temperature value;
correspondingly, the determining that the suspected fault exists in the air conditioner according to the first temperature parameter includes: and calculating a first outdoor temperature difference value between the first outdoor unit condenser coil temperature value and the first outdoor environment temperature value, and determining that the suspected fault exists in the air conditioner when the first outdoor temperature difference value is smaller than a preset first outdoor temperature difference threshold value.
6. The method for detecting the air conditioner according to claim 1, wherein the obtaining of the second temperature parameter of the air conditioner comprises: acquiring a second outdoor unit condenser coil temperature value and a second outdoor environment temperature value;
correspondingly, the determining the operating state of the air conditioner according to the second temperature parameter includes: and calculating a second outdoor temperature difference value between the second outdoor unit condenser coil temperature value and the second outdoor environment temperature value, and determining that the air conditioner has a fault when the second outdoor temperature difference value is always smaller than a preset second outdoor temperature difference threshold value within a second preset time.
7. The detecting method for the air conditioner according to claim 6, wherein the fan is an outdoor fan.
8. The detection method of an air conditioner according to any one of claims 1 to 7, wherein: the first operating condition parameter and the second operating condition parameter include: the motor running frequency and/or the motor running speed of the compressor.
9. The detection method of an air conditioner according to claim 8, wherein: the first operating condition parameter and the second operating condition parameter further include: a cooling mode or a heating mode.
10. An operation control device characterized in that: comprises at least one control processor and a memory for communicative connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform the method of detecting an air conditioner according to any one of claims 1 to 9.
11. An air conditioner, characterized in that: comprising a compressor, a fan and an operation control device according to claim 10, both the compressor and the fan being electrically connected to the operation control device.
12. A computer-readable storage medium characterized by: the computer-readable storage medium stores computer-executable instructions for causing a computer to perform the method of detecting the air conditioner according to any one of claims 1 to 9.
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