CN107355953B - Dust accumulation detection device and method, air conditioner, home system and storage medium - Google Patents
Dust accumulation detection device and method, air conditioner, home system and storage medium Download PDFInfo
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- CN107355953B CN107355953B CN201710655428.3A CN201710655428A CN107355953B CN 107355953 B CN107355953 B CN 107355953B CN 201710655428 A CN201710655428 A CN 201710655428A CN 107355953 B CN107355953 B CN 107355953B
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- 239000000428 dust Substances 0.000 title claims abstract description 417
- 238000009825 accumulation Methods 0.000 title claims abstract description 340
- 238000001514 detection method Methods 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008859 change Effects 0.000 claims description 68
- 230000003749 cleanliness Effects 0.000 claims description 65
- 239000003990 capacitor Substances 0.000 claims description 31
- 230000002452 interceptive effect Effects 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 21
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 description 19
- 238000013461 design Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- 230000036541 health Effects 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 3
- 238000004887 air purification Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a dust accumulation detection device, a method, an air conditioner, a home system and a storage medium, wherein the dust accumulation detection device comprises a first detection component, a second detection component and a controller, the first detection component is arranged on an outdoor heat exchanger of the air conditioner and is used for directly detecting dust accumulation on the outdoor heat exchanger, the second detection component is arranged on an indoor heat exchanger of the air conditioner and is used for directly detecting the dust accumulation on the indoor heat exchanger, and then the collected dust accumulation data is processed through the controller connected with the first detection component and the second detection component, so that the dust accumulation detection of the air conditioner is realized, the problem that the dust accumulation accuracy is poor in indirect calculation in the traditional modes of setting an operation time threshold value, a fan operation power variation and the like is solved, the dust accumulation detection accuracy of the air conditioner is improved, meanwhile, fault alarm caused by inaccurate dust accumulation detection is avoided, and the operation stability of the air conditioner is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a dust accumulation detection device and method, an air conditioner, an intelligent home system and a storage medium.
Background
To increase heat exchange efficiency, heat exchanger coils of air conditioners may be fitted with dense heat dissipating fins. After the air conditioner operates for a period of time, a large amount of dust can be attached to the radiating fins, especially when the outdoor unit is installed in a severe environment, after the air conditioner is used for a long time, the air inlet can be filled with dust or sundries, so that the use comfort of a user can be influenced, the refrigerating or heating efficiency of the air conditioner can be influenced, and even fault alarm occurs.
Because the coil pipe and the radiating fins are designed densely, the middle gap is small, the difficulty in dust accumulation detection is high, and the technical design is complex.
The traditional dust accumulation detection of the radiator generally sets a device operation time threshold value, a fan operation power variation and the like, and indirectly calculates the dust accumulation, but is greatly influenced by external factors, and the accuracy of a detection result is poor.
Disclosure of Invention
The invention mainly aims to provide a dust accumulation detection device which aims to improve the accuracy of dust accumulation detection of an air conditioner and the running stability of the air conditioner.
In order to achieve the above object, the present invention provides a dust accumulation detecting device for an air conditioner, comprising:
A first detection assembly, which is installed on an outdoor heat exchanger of the air conditioner and detects the dust accumulation amount of the outdoor heat exchanger;
the second detection component is arranged on the indoor heat exchanger of the air conditioner and used for detecting the dust accumulation amount of the indoor heat exchanger;
and the controller is connected with the first detection assembly and the second detection assembly and is used for receiving and processing dust volume data acquired by the first detection assembly and the second detection assembly.
In one possible design, the first detection component is mounted on the radiating fins of the outdoor heat exchanger and detects the dust accumulation amount between the adjacent radiating fins of the outdoor heat exchanger; the second detection assembly is arranged on the radiating fins of the indoor heat exchanger and detects dust accumulation between adjacent radiating fins of the indoor heat exchanger.
In one possible design, the first detection assembly includes a first sensor, and at least one parallel plate capacitor electrically connected to the first sensor, the parallel plate capacitor including a first electrode and a second electrode, the first electrode and the second electrode being respectively mounted to two adjacent heat dissipating fins of the outdoor heat exchanger, the first sensor being connected to the controller, and detecting an amount of dust accumulation between the adjacent heat dissipating fins of the outdoor heat exchanger by acquiring a capacitance value between the first electrode and the second electrode; and/or the number of the groups of groups,
The second detection assembly comprises a second sensor and at least one parallel plate capacitor electrically connected with the second sensor, the parallel plate capacitor comprises a third electrode and a fourth electrode, the third electrode and the fourth electrode are respectively installed on two adjacent radiating fins of the indoor heat exchanger, the second sensor is connected with the controller, and the dust volume between the adjacent radiating fins of the indoor heat exchanger is detected by acquiring capacitance values between the third electrode and the fourth electrode.
In one possible design, the first detection component includes a third sensor and at least one first resonant circuit electrically connected with the third sensor, a parallel plate capacitor of the first resonant circuit includes a fifth electrode and a sixth electrode, the fifth electrode and the sixth electrode of the first resonant circuit are respectively installed on two adjacent radiating fins of the outdoor heat exchanger, and the third sensor is connected with the controller and transmits an inductance value or a resistance value acquired by the first resonant circuit to the controller; and/or the number of the groups of groups,
the second detection assembly comprises a fourth sensor and at least one second resonant circuit electrically connected with the fourth sensor, a parallel plate capacitor of the second resonant circuit comprises a sixth electrode and a seventh electrode, the fifth electrode and the sixth electrode of the second resonant circuit are respectively arranged on two adjacent radiating fins of the indoor heat exchanger, the fourth sensor is connected with the controller, and an inductance value or a resistance value acquired through the second resonant circuit is transmitted to the controller.
In one possible design, the dust accumulation detection device further includes a timer that triggers the controller at preset time intervals.
Another object of the present invention is to provide an air conditioner, which includes the dust accumulation detecting device as described above.
The invention further provides a dust accumulation detection method of the air conditioner, which comprises the following steps:
acquiring the dust accumulation amount of an outdoor heat exchanger and the dust accumulation amount of an indoor heat exchanger of the air conditioner every preset time length, and calculating a first dust accumulation degree value of the outdoor heat exchanger and a second dust accumulation degree value of the indoor heat exchanger;
comparing the first dust accumulation degree value with a preset first cleanliness threshold value, and comparing the second dust accumulation degree value with a preset second cleanliness threshold value;
and outputting an early warning prompt when the first dust accumulation degree value is greater than or equal to a first cleanliness threshold and/or the second dust accumulation degree value is greater than or equal to a second cleanliness threshold.
In one possible design, before all steps are performed, the following steps are also performed:
and presetting a first cleanliness threshold of the outdoor heat exchanger and a second cleanliness threshold of the indoor heat exchanger.
In one possible design, the step of obtaining the dust accumulation amount of the outdoor heat exchanger and the dust accumulation amount of the indoor heat exchanger of the air conditioner every preset time period, and calculating the first dust accumulation degree value of the outdoor heat exchanger and the second dust accumulation degree value of the indoor heat exchanger specifically includes:
detecting a first dust accumulation amount of the outdoor heat exchanger at a first moment, and detecting a second dust accumulation amount of the indoor heat exchanger at the first moment;
after a preset time length, detecting a third dust accumulation amount of the outdoor heat exchanger at a second moment, and detecting a fourth dust accumulation amount of the indoor heat exchanger at the second moment;
the third dust accumulation amount is differenced with the first dust accumulation amount, and a first dust accumulation degree value of the outdoor heat exchanger is obtained;
and the fourth dust accumulation amount is differed from the second dust accumulation amount, and a second dust accumulation degree value of the indoor heat exchanger is obtained.
In one possible design, the air conditioner includes an interactive interface, and when the first dust level value is greater than or equal to the first cleanliness threshold, and/or the second dust level value is greater than or equal to the second cleanliness threshold, the method specifically includes the steps of:
When the first dust accumulation degree value is larger than or equal to the first cleanliness threshold, displaying an early warning prompt on the interactive interface; or alternatively, the first and second heat exchangers may be,
when the second dust accumulation degree value is larger than or equal to the second cleanliness threshold, displaying an early warning prompt on the interactive interface; or alternatively, the first and second heat exchangers may be,
and displaying an early warning prompt on the interactive interface when the first dust accumulation degree value is greater than or equal to the first cleanliness threshold and the second dust accumulation degree value is greater than or equal to the second cleanliness threshold.
In one possible design, the air conditioner further includes an automatic dust removing device, and when outputting the early warning prompt, the following steps are further performed:
generating a dust removing instruction, and controlling the automatic dust removing device to execute dust removing operation according to the dust removing instruction.
In one possible design, the dust accumulation detection method further includes the steps of:
and calculating the dust accumulation change rate of the indoor and outdoor heat exchangers according to the first dust accumulation degree value and the second dust accumulation degree value, and monitoring the indoor and outdoor air quality according to the dust accumulation change rate.
In one possible design, the step of calculating a dust accumulation rate of the outdoor heat exchanger according to the first dust accumulation degree value and monitoring the outdoor air quality according to the dust accumulation rate specifically includes:
Calculating the change rate of the first dust accumulation degree value according to the first dust accumulation degree value obtained in preset time intervals, and taking the change rate as the first dust accumulation change rate of the outdoor heat exchanger;
big data processing is carried out on the first dust accumulation change rate, and an outdoor air quality change curve is generated so as to monitor the outdoor air quality; and/or the number of the groups of groups,
the step of calculating the dust accumulation change rate of the indoor heat exchanger according to the second dust accumulation degree value and detecting the indoor air quality according to the dust accumulation change rate specifically comprises the following steps:
calculating the change rate of a second dust accumulation degree value according to the second dust accumulation degree value obtained in preset time intervals, and taking the change rate as the second dust accumulation change rate of the indoor heat exchanger;
and carrying out big data processing on the second dust accumulation change rate to generate an indoor air quality change curve so as to monitor the indoor air quality.
The invention also provides a home system, which comprises:
an air conditioner as described above; the method comprises the steps of,
and the air purifier is used for executing air purifying operation according to the indoor air quality data detected by the air conditioner.
The invention also proposes a storage medium storing a dust detection program which, when executed by a processor, implements the steps of the dust detection method as described above.
The invention relates to a dust accumulation detection device, which comprises a first detection component, a second detection component and a controller, wherein the first detection component is arranged on an outdoor heat exchanger of an air conditioner and is used for directly detecting dust accumulation on the outdoor heat exchanger, the second detection component is arranged on an indoor heat exchanger of the air conditioner and is used for directly detecting the dust accumulation on the indoor heat exchanger, and then the collected dust accumulation data is processed through the controller connected with the first detection component and the second detection component, so that the dust accumulation detection of the air conditioner is realized, the problem that the accuracy of indirectly calculating the dust accumulation is poor in the traditional modes of setting an operation time threshold value, the fan operation power variation and the like is solved, the accuracy of the dust accumulation detection of the air conditioner is improved, meanwhile, fault alarm caused by inaccurate dust accumulation detection is avoided, and the operation stability of the air conditioner is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a first embodiment of an air conditioner according to the present invention;
fig. 2 is a schematic structural view of a second embodiment of an air conditioner according to the present invention;
FIG. 3 is a flowchart of an embodiment of a dust detection method according to the present invention;
FIG. 4 is a flowchart showing the step S20 in FIG. 3;
FIG. 5 is a flowchart illustrating an embodiment of the step S50 in FIG. 3;
fig. 6 is a flowchart of another embodiment of step S50 in fig. 3.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
In the prior art, the dust accumulation detection of the heat exchanger is carried out by utilizing the operation time threshold of the air conditioner, but the detection error is larger due to larger difference of the environmental air quality, so that the heat exchanger is easy to be warned in advance when the dirty blockage occurs or the dirty blockage does not occur; the change quantity of the running power of the fan is relatively more accurate than the running time threshold value of the air conditioner, but the change quantity of the running power of the fan also belongs to indirect detection, and when factors such as device aging, condensed water of a heat exchanger and the like occur, the error of a detection result is larger, and the accuracy is low.
The invention provides a dust accumulation detection device which is applied to an air conditioner.
Referring to fig. 1, fig. 1 is a schematic structural view of a first embodiment of an air conditioner according to the present invention.
In the first embodiment, the dust accumulation detecting device 10 includes:
a first detection unit 11 that is attached to the outdoor heat exchanger 20 of the air conditioner 100 and detects the dust accumulation amount of the outdoor heat exchanger 20;
a second detection unit 13 mounted to the indoor heat exchanger 30 of the air conditioner 100, for detecting the dust accumulation amount of the indoor heat exchanger 30;
and a controller 15, which is connected to the first detecting component 11 and the second detecting component 13, and receives and processes dust volume data collected by the first detecting component 11 and the second detecting component 13.
The air conditioner comprises a compressor, an outdoor heat exchanger, a throttling element and an indoor heat exchanger which are connected in series to form a refrigerant loop, wherein in the refrigerating operation process of the air conditioner, the refrigerant in the refrigerant loop is changed into a high-temperature and high-pressure gaseous refrigerant after doing work through the compressor, then is subjected to condensation and heat release through the outdoor heat exchanger, the carried high-temperature heat is discharged to the external environment through the outdoor heat exchanger, then enters the indoor heat exchanger after being subjected to further throttling and depressurization through the throttling element, absorbs the heat of the indoor environment through the indoor heat exchanger, cools the indoor environment, and in the same way, releases the heat to the indoor environment through the indoor heat exchanger when the air conditioner heats, and simultaneously absorbs the heat from the external environment through the outdoor heat exchanger. Therefore, the refrigerating and heating efficiency of the air conditioner is closely related to the heat exchange efficiency of the indoor heat exchanger and the outdoor heat exchanger, and in order to improve the heat exchange efficiency of the heat exchanger, the air inlet and the air outlet are generally arranged at the positions of the indoor heat exchanger and the outdoor heat exchanger, so that the heat exchange efficiency of the heat exchanger is improved, the refrigerating efficiency and the heating efficiency of the air conditioner are improved, dust carried in wind is accumulated on fins of the indoor heat exchanger and fins of the outdoor heat exchanger, and the refrigerating or heating efficiency of the air conditioner is influenced as the thickness of dust on the surface of the heat exchanger is increased.
In the first embodiment provided in fig. 1, the dust accumulation detecting device 10 is used for detecting the dust accumulation degree of the air conditioner 100, so as to ensure the comfort level of use during the operation of the air conditioner, and avoid the phenomenon that the operation efficiency of the air conditioner is low and even a fault alarm stops due to dust blocking. Different from traditional laying dust detection mode, the laying dust detection device that this embodiment provided detects the dust volume on the outdoor heat exchanger 20 and the dust volume on the indoor heat exchanger 30 simultaneously, all directly acquires the dust volume of piling up on the fin of heat exchanger through the detection component moreover, specifically: the dust accumulation detecting device 10 includes a first detecting component 11, a second detecting component 13, and a controller 15, where the first detecting component 11 is installed on the outdoor heat exchanger 20 to detect the dust accumulation on the outdoor heat exchanger 20, that is, to detect the dust accumulation between adjacent heat dissipating fins of the outdoor heat exchanger 20, and since the heat dissipating fins are important parts of heat exchange between the refrigerant in the heat exchanger and the external environment, the heat dissipating fins are provided to increase the heat exchange efficiency of the heat exchanger, if the heat dissipating fins are filled with dust, the heat exchange efficiency of the heat exchanger is affected, and therefore, the dust accumulation between the adjacent heat dissipating fins of the heat exchanger needs to be detected. The second detecting unit 13 is mounted on the indoor heat exchanger 30 to detect the dust volume on the indoor heat exchanger 30, specifically, the heat radiating fins mounted on the indoor heat exchanger 30, that is, the dust volume between adjacent heat radiating fins of the outdoor heat exchanger 30.
The controller 15 may include a communication module, a data processing module, and a control module as required, where the controller 15 is connected to the first detection module 11 and the second detection module 13, receives dust accumulation data on the outdoor heat exchanger 20 collected by the first detection module 11 and dust accumulation data on the indoor heat exchanger 30 collected by the second detection module 13 through the communication module, performs filtering processing on the dust accumulation data, and then transmits the received dust accumulation data to the data processing module to perform data processing, for example, after performing differential budget on the dust accumulation amount of the outdoor heat exchanger 20 collected every interval for a preset duration, a first dust accumulation degree value of the outdoor heat exchanger 20 is obtained, then the first dust accumulation degree value is compared with a preset first cleanliness threshold, and then generates an early warning prompt instruction or a dust removal instruction according to a comparison result, and controls the interactive interface 40 of the air conditioner 100 to perform early warning display through the data control module. Similarly, the dust accumulation amount of the indoor heat exchanger 30 collected in each interval for a preset time period can be subjected to difference operation, a second dust accumulation degree value of the indoor heat exchanger 30 is obtained, the second dust accumulation degree value is compared with a preset second cleanliness threshold, early warning prompt quality or dust removal quality is generated according to a comparison result, the control module controls the interactive interface 40 of the air conditioner 100 to carry out early warning prompt, or when the air conditioner 100 is provided with an automatic dust removal device, the automatic dust removal device is controlled to clean the indoor heat exchanger through the dust removal instruction. The communication module is further configured to calculate a dust accumulation rate of the indoor heat exchanger 30 according to the second dust accumulation degree value of the indoor heat exchanger 30, calculate a dust accumulation rate of the outdoor heat exchanger 20 according to the first dust accumulation degree value of the outdoor heat exchanger 20, and upload the dust accumulation rate to a cloud server or a big data cloud of a background for analysis processing, so as to form an indoor and outdoor air quality change curve, so as to help users and maintenance personnel analyze, maintain and improve the indoor and outdoor air quality.
The dust accumulation detection device 10 comprises a first detection component 11, a second detection component 13 and a controller 15, wherein the first detection component 11 is arranged on an outdoor heat exchanger 20 of an air conditioner 100 and is used for directly detecting dust accumulation on the outdoor heat exchanger 20, the second detection component 13 is arranged on an indoor heat exchanger 30 of the air conditioner 100 and is used for directly detecting the dust accumulation on the indoor heat exchanger 30, and then the collected dust accumulation data is processed through the controller 15 connected with the first detection component 11 and the second detection component 13, so that dust accumulation detection of the air conditioner 100 is realized, the problem that the dust accumulation accuracy is poor in indirectly calculated in the traditional modes of setting an operation time threshold value, fan operation power variation and the like is solved, the dust accumulation detection accuracy of the air conditioner is improved, fault alarm caused by inaccurate dust accumulation detection is avoided, and the operation stability of the air conditioner is improved.
Further, the first detecting component 11 and the second detecting component 13 each include a sensor, and at least one parallel plate capacitor electrically connected to the sensor, where the parallel plate capacitor includes a pair of electrodes, the pair of electrodes are respectively mounted on two adjacent heat dissipation fins of the heat exchanger, the sensor is connected to the controller 15, and the amount of dust accumulation between the two adjacent heat dissipation fins of the heat exchanger is detected by acquiring a capacitance value between the two electrodes.
Referring to fig. 1, the first detecting assembly 11 includes a first sensor 111, and at least one parallel plate capacitor electrically connected to the first sensor 111, the parallel plate capacitor including a first electrode 113 and a second electrode 115, the first electrode 113 and the second electrode 115 being respectively mounted to two adjacent heat dissipating fins of the outdoor heat exchanger 20, the first sensor 111 being connected to the controller 15, and detecting an amount of dust accumulation between the adjacent heat dissipating fins of the outdoor heat exchanger 20 by acquiring a capacitance value between the first electrode 113 and the second electrode 115.
In this embodiment, the first detection component 11 for detecting the dust accumulation amount between the adjacent heat dissipation fins of the outdoor heat exchanger 20 includes a first sensor 111 and at least one parallel plate capacitor electrically connected to the first sensor 111, where the desired parallel plate capacitor includes a first electrode 113 and a second electrode 115, each pair of the first electrode 113 and the second electrode 115 is respectively installed on two adjacent heat dissipation fins of the outdoor heat exchanger 20, or installed on the outer surface of a coil of the outdoor heat exchanger 20, and the first electrode 113 and the second electrode 115 are installed on the adjacent heat dissipation fins at a preset interval, so that initial range values of parallel plate capacitors formed by each pair of the first electrode 113 and the second electrode 115 are the same, and when different fillers such as dust exist between the first electrode 113 and the second electrode 115, the first sensor 111 can acquire different capacitance values, for example, when the outdoor heat exchanger 20 forms the accumulated dust, the capacitor formed by the first electrode 113 and the second electrode 115 can display the first capacitance value, when the outdoor heat exchanger 20 forms the second heat exchanger forms the accumulated dust, and when the second heat exchanger forms the second capacitance value, the first capacitance value can directly acquire the second capacitance value, and the second capacitance value can acquire the capacitance value of the dust accumulation value between the first electrode 115 and the second electrode 115, and the second capacitance value can directly acquire the capacitance value of the dust accumulation value between the adjacent heat dissipation fins, and the second capacitance value can be acquired by implementing the first capacitance device.
Referring to fig. 1, the second detecting assembly 13 includes a second sensor 131, and at least one set of parallel plate capacitors electrically connected to the second sensor 131, the parallel plate capacitors including a third electrode 133 and a fourth electrode 135, the third electrode 133 and the fourth electrode 135 being respectively mounted to two adjacent heat dissipating fins of the indoor heat exchanger 30, the second sensor 131 being connected to the controller 15, and detecting an amount of dust between the adjacent heat dissipating fins of the indoor heat exchanger 30 by acquiring a capacitance value between the third electrode 133 and the fourth electrode 135.
In this embodiment, the second detecting component 13 for detecting the dust accumulation amount between the adjacent heat dissipation fins of the indoor heat exchanger 30 includes a second sensor 131 and at least one parallel plate capacitor electrically connected to the second sensor 131, where the parallel plate capacitor includes a third electrode 133 and a fourth electrode 135, each pair of the third electrode 133 and the fourth electrode 135 is respectively installed on two adjacent heat dissipation fins of the indoor heat exchanger 30 or on the outer surface of a coil of the indoor heat exchanger 30, and the third electrode 133 and the fourth electrode 135 are disposed on the adjacent heat dissipation fins at a preset interval, so that initial measurement range values of parallel plate capacitors formed by each pair of the third electrode 133 and the fourth electrode 135 are the same, and when different fillers such as dust are present between the third electrode 133 and the fourth electrode 135, the second sensor 131 can collect different capacitance values, for example, in the case that the indoor heat exchanger 30 forms dust accumulation, the capacitor formed by the third electrode 133 and the fourth electrode 135 can display the first value, when the indoor heat exchanger 30 forms the second dust accumulation amount, the second measurement range can be directly increased, and the capacitance between the third electrode 135 and the fourth electrode 135 can be directly detected, and the air conditioner can directly obtain the dust accumulation value between the third electrode and the fourth electrode 135.
Further, the first detecting component 11 and the second detecting component 13 each include a sensor, and at least one resonant circuit electrically connected to the sensor, and a parallel plate capacitor of the resonant circuit includes a pair of electrodes, the pair of electrodes are respectively mounted on two adjacent heat dissipation fins of the heat exchanger, the sensor is connected to the controller 15, and the sensor detects the dust volume between the two adjacent heat dissipation fins of the heat exchanger by acquiring an inductance value or a resistance value between the two electrodes.
Referring to fig. 2, the first detecting assembly 11 includes a third sensor 112 and at least one first resonant circuit 114 electrically connected to the third sensor 112, the parallel plate capacitor of the first resonant circuit 114 includes a fifth electrode and a sixth electrode, the fifth electrode and the sixth electrode of the first resonant circuit 114 are respectively mounted on two adjacent heat dissipating fins of the outdoor heat exchanger 20, the third sensor 112 is connected to the controller 15, and an inductance value or a resistance value collected by the first resonant circuit 114 is transmitted to the controller 15.
In the present embodiment, the first detecting assembly 11 for detecting the dust accumulation amount between the adjacent heat dissipation fins of the outdoor heat exchanger 20 includes the third sensor 112 and at least one first resonant circuit 114 electrically connected to the third sensor 112, the first resonant circuit 114 is an LC resonant circuit, the parallel plate capacitor of the first resonant circuit 114 includes a fifth electrode and a sixth electrode, and each of the fifth electrode and the sixth electrode of the first resonant circuit 114 is respectively mounted on the two adjacent heat dissipation fins of the outdoor heat exchanger 20, so that when dust accumulates between the two adjacent heat dissipation fins, the capacitance value of the parallel plate capacitor formed by the fifth electrode and the sixth electrode changes, thereby affecting the inductance value and the resistance value of the LC resonant circuit to change, so that the dust accumulation amount between the two adjacent heat dissipation fins of the outdoor heat exchanger 20 can also be detected by detecting the inductance value and the resistance value of the first resonant circuit 114. In another embodiment, the first detection component 11 may further amplify the collected resonant frequency signal of the first resonant circuit 114 and convert the amplified resonant frequency signal into a digital signal, and transmit the converted data signal of the inductance value or the resistance value to the controller 15 through a communication interface such as I2C, UART or CAN between the third sensor 112 and the controller 15, so that the controller 15 processes dust accumulation data on the outdoor heat exchanger 20, outputs an early warning prompt according to a processing result, prompts a user or a maintainer to perform cleaning, or generates a dust removal instruction, and controls the automatic dust removal device to perform dust removal or cleaning operation.
Referring to fig. 2, the second detecting assembly 13 includes a fourth sensor 132 and at least one second resonant circuit 134 electrically connected to the fourth sensor 132, the parallel plate capacitor of the second resonant circuit 134 includes a sixth electrode and a seventh electrode, the fifth electrode and the sixth electrode of the second resonant circuit 134 are respectively mounted on two adjacent heat dissipating fins of the indoor heat exchanger 30, the fourth sensor 132 is connected to the controller 15, and an inductance value or a resistance value acquired through the second resonant circuit 134 is transmitted to the controller 15.
In this embodiment, the second detecting assembly 13 for detecting the dust accumulation amount between the adjacent heat dissipation fins of the indoor heat exchanger 30 includes a fourth sensor 132, and at least one second resonant circuit 134 electrically connected to the fourth sensor 132, the second resonant circuit 134 is an LC resonant circuit, the parallel plate capacitor of the second resonant circuit 134 includes a seventh electrode and an eighth electrode, and the seventh electrode and the eighth electrode of the second resonant circuit 134 are respectively mounted on the adjacent heat dissipation fins of the indoor heat exchanger 30, so when dust accumulates between the adjacent heat dissipation fins, the capacitance value of the parallel plate capacitor formed by the seventh electrode and the eighth electrode changes, thereby affecting the inductance value and the resistance value of the LC resonant circuit to change, so the dust accumulation amount between the adjacent heat dissipation fins of the indoor heat exchanger 30 can also be detected by detecting the inductance value and the resistance value of the second resonant circuit 134. In another embodiment, the second detection component 13 may further amplify the collected resonant frequency signal of the second resonant circuit 134 and convert the amplified resonant frequency signal into a digital signal, and transmit the converted data signal of the inductance value or the resistance value to the controller 15 through a communication interface such as I2C, UART or CAN between the fourth sensor 132 and the controller 15, so that the controller 15 processes dust accumulation data on the indoor heat exchanger 30, outputs an early warning prompt according to a processing result, prompts a user or a maintainer to perform cleaning, or generates a dust removal instruction, and controls the automatic dust removal device to perform a dust removal or cleaning operation.
Further, referring to fig. 1 or 2, the dust accumulation detecting device 10 further includes a timer 17 that triggers the controller 15 at intervals of a preset duration.
Because the heat productivity of the components is higher when the controller 15 performs data processing, and the meaning of detecting the dust accumulation amount on the outdoor heat exchanger 20 and the dust accumulation amount on the indoor heat exchanger 30 in real time is not great, the dust accumulation detection device 10 of this embodiment sets a timer 17 for detecting and triggering the controller 15 according to a preset time length, sets an interval time length triggered by the controller 15 through the timer 17, performs differential budget on the dust accumulation amount of the outdoor heat exchanger 20 acquired for each interval preset time length, so as to acquire a first dust accumulation degree value of the outdoor heat exchanger 20, then compares the first dust accumulation degree value with a preset first cleanliness threshold, and generates an early warning prompt instruction or a dust removal instruction according to a comparison result, and controls the interactive interface 40 of the air conditioner 100 to perform early warning display through the data control module. Or, the dust accumulation amount of the indoor heat exchanger 30 collected at each preset time interval is subjected to difference operation to obtain a second dust accumulation degree value of the indoor heat exchanger 30, the second dust accumulation degree value is compared with a preset second cleanliness threshold value, early warning prompt quality or dust removal quality is generated according to a comparison result, the control module controls the interactive interface 40 of the air conditioner 100 to carry out early warning prompt, or when the air conditioner 100 is provided with an automatic dust removal device, the automatic dust removal device is controlled to clean the indoor heat exchanger through the dust removal instruction.
Referring to fig. 1 or 2, the present invention further proposes an air conditioner 100, the air conditioner 100 comprising the dust accumulation detecting device 10 as described above, and an interactive interface 40 for displaying the processing result of the dust accumulation data of the indoor and outdoor heat exchangers.
In this embodiment, the air conditioner 100 includes the dust accumulation detecting device 10 as described above, the dust accumulation detecting device 10 includes the first detecting component 11, the second detecting component 13, and the controller 15, where the first detecting component 11 is installed on the outdoor heat exchanger 20 of the air conditioner 100 and is used to directly detect the dust accumulation on the outdoor heat exchanger 20, the second detecting component 13 is installed on the indoor heat exchanger 30 of the air conditioner 100 and is used to directly detect the dust accumulation on the indoor heat exchanger 30, and then the collected dust accumulation data is processed by the controller 15 connecting the first detecting component 11 and the second detecting component 13, so as to implement dust accumulation detection of the air conditioner 100, and the dust accumulation data processing result of the indoor and outdoor heat exchangers is displayed by the interactive interface 40, so that the man-machine interaction of the air conditioner is improved, the problem that the accuracy of indirectly calculating the dust accumulation is poor in the traditional mode such as setting the running time threshold and the running power variation of the fan is solved, the accuracy of dust accumulation detection of the air conditioner is improved, and meanwhile, the alarm stability of the air conditioner is prevented from being caused by inaccurate dust accumulation detection is improved.
The invention further provides a dust accumulation detection method of the air conditioner.
Referring to fig. 3, fig. 3 is a flowchart of an embodiment of a dust detection method according to the present invention.
In this embodiment, the dust accumulation detection method includes the steps of:
s10: presetting a first cleanliness threshold of an outdoor heat exchanger and a second cleanliness threshold of an indoor heat exchanger;
s20: acquiring the dust accumulation amount of an outdoor heat exchanger and the dust accumulation amount of an indoor heat exchanger of the air conditioner every preset time length, and calculating a first dust accumulation degree value of the outdoor heat exchanger and a second dust accumulation degree value of the indoor heat exchanger;
s30: comparing the first dust accumulation degree value with a preset first cleanliness threshold value, and comparing the second dust accumulation degree value with a preset second cleanliness threshold value;
s40: outputting an early warning prompt when the first dust accumulation degree value is greater than or equal to a first cleanliness threshold and/or the second dust accumulation degree value is greater than or equal to a second cleanliness threshold;
s50: and calculating the dust accumulation change rate of the indoor and outdoor heat exchangers according to the first dust accumulation degree value and the second dust accumulation degree value, and monitoring the indoor and outdoor air quality according to the dust accumulation change rate.
The air conditioner of the embodiment comprises an outdoor heat exchanger, a first detection component arranged on the outdoor heat exchanger, a second detection component arranged on the indoor heat exchanger, and a controller, when dust accumulation detection is carried out, a first cleanliness threshold of the outdoor heat exchanger and a second cleanliness threshold of the indoor heat exchanger are firstly required to be preset, then the first detection component and the second detection component are controlled by a timer setting controller to carry out interval duration of dust accumulation detection of the indoor heat exchanger, the controller is triggered to control the first detection component to collect dust accumulation on radiating fins of the outdoor heat exchanger by the timer every preset time, the second detection component is controlled to collect dust accumulation on radiating fins of the indoor heat exchanger, the dust accumulation is obtained by detecting the dust accumulation between adjacent radiating fins, particularly, an electrode is respectively arranged on the adjacent radiating fins, the distance between the two electrodes is a preset fixed distance, the distance between the two electrodes is a capacitor, the size of the capacitor is related to the corresponding area, the distance between the two electrodes is larger than the corresponding area, the second heat accumulation value is larger than the preset value between the two electrodes, the second heat accumulation value is larger than the preset value of the adjacent radiating fins, the second heat accumulation value is larger than the current dust accumulation value can be compared with the preset value of the second heat exchanger, and the current dust accumulation value can be compared with the second heat accumulation value according to the preset value of the preset value, and the heat accumulation value can be compared with the current dust accumulation value of the second heat accumulation value is larger than the current value, and the heat accumulation value can be compared with the heat accumulation value is larger than the heat value has, and outputting a comparison result.
Because the operation of the air conditioner is directly connected with the outdoor heat exchanger and the indoor heat exchanger, whether the dust accumulation on the outdoor heat exchanger is excessive or the dust accumulation on the indoor heat exchanger is excessive, the heat exchange efficiency of the air conditioner is affected, and the refrigerating or heating efficiency of the air conditioner is further affected, when the first dust accumulation degree value of the outdoor heat exchanger is greater than or equal to a first cleanliness threshold value, and/or when the second dust accumulation degree value of the indoor heat exchanger is greater than or equal to a second cleanliness threshold value, the controller can output an early warning prompt according to a preset program, for example, a text or symbol prompt is displayed on an interactive interface of the air conditioner, or when an audible and visual alarm device is installed on the air conditioner, a user or a maintainer is prompted to clean the indoor heat exchanger and/or the outdoor heat exchanger of the air conditioner through the audible and visual alarm device.
In another embodiment, the first cleanliness threshold of the outdoor heat exchanger and the second cleanliness threshold of the indoor heat exchanger may also be set to the same value, such as classifying the amount of dust accumulation on the outdoor heat exchanger and the indoor heat exchanger into cleanliness classes: d (D) 0 、D 2 、D 3 ……D n Respectively represent different degrees of cleanliness of the heat exchanger, wherein D 0 The cleanliness is highest, D n At least, i.e. when it is detected that the degree of cleanliness of the outdoor heat exchanger and/or the indoor heat exchanger reaches D n And when the outdoor heat exchanger and/or the indoor heat exchanger reach the degree of cleaning, an early warning prompt is sent to a user or a maintainer to clean the outdoor heat exchanger and/or the indoor heat exchanger. In addition, since the air quality is closely related to the dust accumulation amount on the indoor and outdoor heat exchangers, the change of the air quality in the indoor and outdoor can be monitored by detecting the change rate of the accumulated dust on the indoor and outdoor heat exchangers, wherein the change rate of the accumulated dust is the change rate of the first accumulated dust degree value of the outdoor heat exchanger, namely the first accumulated dust degree valueThe change trend of the dust accumulation degree value in each interval preset time length, or the change rate of the second dust accumulation degree value of the indoor heat exchanger, namely the change trend of the second dust accumulation degree value in each interval preset time length, is processed into an air quality change curve by uploading the dust accumulation change rate of the indoor and outdoor heat exchangers to the background big data cloud, and the air quality of the indoor and outdoor heat exchangers is analyzed to help people improve the air quality.
The dust accumulation detection method is applied to an air conditioner, and according to the dust accumulation amount of the outdoor heat exchanger and the dust accumulation amount of the indoor heat exchanger which are obtained in each interval for a preset time period, a first dust accumulation degree value of the outdoor heat exchanger and a second dust accumulation degree value of the indoor heat exchanger are calculated, then the first dust accumulation degree value is compared with a preset first cleanliness threshold value, the second dust accumulation degree value is compared with a preset second cleanliness threshold value, and when the first dust accumulation degree value is greater than or equal to the first cleanliness threshold value and/or the second dust accumulation degree value is greater than or equal to the second cleanliness threshold value, an alarm prompt is output to prompt a user or maintainer to clean dust of the heat exchanger, the phenomenon that the heat exchange efficiency of the heat exchanger is reduced or a fault alarm is caused by dust accumulation is avoided, under the condition that the air conditioner is ensured to run stably, the refrigerating or heating performance of the air conditioner is improved, and meanwhile the dust accumulation detection accuracy of the air conditioner is improved by directly detecting the dust accumulation amount of the outdoor heat exchanger and the indoor heat exchanger.
Further, referring to fig. 4, the method for detecting dust accumulation based on the above embodiment, step S20 specifically includes:
s21: detecting a first dust accumulation amount of the outdoor heat exchanger at a first moment, and detecting a second dust accumulation amount of the indoor heat exchanger at the first moment;
s22: after a preset time length, detecting a third dust accumulation amount of the outdoor heat exchanger at a second moment, and detecting a fourth dust accumulation amount of the indoor heat exchanger at the second moment;
s23: the third dust accumulation amount is differenced with the first dust accumulation amount, and a first dust accumulation degree value of the outdoor heat exchanger is obtained;
s24: and the fourth dust accumulation amount is differed from the second dust accumulation amount, and a second dust accumulation degree value of the indoor heat exchanger is obtained.
According to the method for detecting the accumulated dust of the air conditioner, the accumulated dust degree value of the outdoor heat exchanger and the accumulated dust degree value of the indoor heat exchanger are calculated and compared with a preset cleanliness threshold, then an output early warning prompt is made or the operation of displaying the accumulated dust quantities of the outdoor heat exchanger and the indoor heat exchanger is made according to a comparison result, the accuracy of the accumulated dust detection of the air conditioner is improved, and further the refrigerating and heating efficiency of the air conditioner is improved. Similarly, the second dust accumulation degree value of the indoor heat exchanger is obtained through difference operation according to the second dust accumulation amount of the indoor heat exchanger at the current moment and the fourth dust accumulation amount of the outdoor heat exchanger after the preset time, for example, the second dust accumulation amount of the indoor heat exchanger is detected at the first moment, the fourth dust accumulation amount of the outdoor heat exchanger is detected at the second moment after the preset time, and then the fourth dust accumulation amount and the second dust accumulation amount are subjected to difference operation to obtain the second dust accumulation degree value of the indoor heat exchanger.
Further, the air conditioner includes an interactive interface, and when the first dust level value is greater than or equal to the first cleanliness threshold, and/or the second dust level value is greater than or equal to the second cleanliness threshold, the step of outputting an early warning prompt specifically includes:
when the first dust accumulation degree value is larger than or equal to the first cleanliness threshold, displaying an early warning prompt on the interactive interface; or alternatively, the first and second heat exchangers may be,
when the second dust accumulation degree value is larger than or equal to the second cleanliness threshold, displaying an early warning prompt on the interactive interface; or alternatively, the first and second heat exchangers may be,
and displaying an early warning prompt on the interactive interface when the first dust accumulation degree value is greater than or equal to the first cleanliness threshold and the second dust accumulation degree value is greater than or equal to the second cleanliness threshold.
In this embodiment, since the operation efficiency of the air conditioner is related to the heat exchange efficiency of the outdoor heat exchanger and the heat exchange efficiency of the indoor heat exchanger, whether the outdoor heat exchanger has too much dust accumulation or the indoor heat exchanger has too much dust accumulation, the operation efficiency of the air conditioner is reduced, even a fault alarm is triggered, and the operation stability of the air conditioner is affected, so that when the first dust accumulation degree value of the outdoor heat exchanger is compared with a preset first cleanliness threshold value, and when the second dust accumulation degree value of the indoor heat exchanger is compared with a preset second cleanliness threshold value, whether the first dust accumulation degree value is greater than or equal to the first cleanliness threshold value or the second dust accumulation degree value is greater than or equal to the second cleanliness threshold value, the controller of the air conditioner controls the interactive interface of the air conditioner to display an early warning prompt so as to remind a user to clean the heat exchanger of the air conditioner. In other embodiments, if the air conditioner is provided with an audible and visual alarm device, the controller may also control the audible and visual alarm device to output an audible and visual alarm prompt, and in another embodiment, if the air conditioner is associated with an after-sales maintenance system of the air conditioner, the early warning prompt may be directly transmitted to the after-sales maintenance system of the air conditioner, so as to prompt maintenance personnel to perform cleaning maintenance on the air conditioner. Of course, if the first dust accumulation degree value of the output outdoor heat exchanger is smaller than the first cleanliness threshold and the second dust accumulation degree value of the indoor heat exchanger is smaller than the second cleanliness threshold, the output outdoor heat exchanger is only displayed on the interactive interface of the air conditioner, and other operations are not needed.
Further, the air conditioner further comprises an automatic dust removing device, and when an early warning prompt is output, the following steps are further executed:
generating a dust removing instruction, and controlling the automatic dust removing device to execute dust removing operation according to the dust removing instruction.
In this embodiment, the air conditioner includes an automatic dust removal device, when a first dust accumulation degree value of the outdoor heat exchanger is greater than or equal to a preset first cleanliness threshold value or a second dust accumulation degree value of the indoor heat exchanger is greater than or equal to a preset second cleanliness threshold value, or when the first dust accumulation degree value of the outdoor heat exchanger is greater than or equal to the first cleanliness threshold value and the second dust accumulation degree value of the second indoor heat exchanger is greater than or equal to the second cleanliness threshold value, a dust removal instruction is generated, and then the automatic dust removal device is controlled to perform cleaning and dust removal operation on the outdoor heat exchanger and/or the indoor heat exchanger according to the dust removal instruction.
Further, referring to fig. 5, the step of calculating a dust accumulation rate of the outdoor heat exchanger according to the first dust accumulation degree value and monitoring the outdoor air quality according to the dust accumulation rate specifically includes:
s51: calculating the change rate of the first dust accumulation degree value according to the first dust accumulation degree value obtained in preset time intervals, and taking the change rate as the first dust accumulation change rate of the outdoor heat exchanger;
S52: and carrying out big data processing on the first dust accumulation change rate to generate an outdoor air quality change curve so as to monitor the outdoor air quality.
In this embodiment, the first dust accumulation degree value of the outdoor heat exchanger is the change amount of the first dust accumulation degree value in each preset time period, and because the air conditioner is in a long-term operation process, the dust accumulation amount on the radiating fins of the outdoor heat exchanger can be increased along with the increase of the operation time period of the air conditioner, that is, the first dust accumulation degree value after each preset time period can be changed, the change rate of the first dust accumulation degree value can be calculated according to the first dust accumulation degree value after each preset time period, that is, the first dust accumulation change rate of the outdoor heat exchanger has a great relation with the particulate matters in the air, and therefore the first dust accumulation change rate of the outdoor heat exchanger is uploaded to the cloud end for large data processing, and an outdoor air quality change curve is generated, so that the outdoor air quality can be monitored and analyzed, the travel time can be conveniently selected by a user, and the interactivity between the air conditioner and the user is improved.
Further, referring to fig. 6, the step of calculating a dust accumulation rate of the indoor heat exchanger according to the second dust accumulation degree value, and detecting the indoor air quality according to the dust accumulation rate specifically includes:
S53: calculating the change rate of a second dust accumulation degree value according to the second dust accumulation degree value obtained in preset time intervals, and taking the change rate as the second dust accumulation change rate of the indoor heat exchanger;
s54: and carrying out big data processing on the second dust accumulation change rate to generate an indoor air quality change curve so as to monitor the indoor air quality.
With reference to the above embodiment, the second dust accumulation rate of the indoor heat exchanger is the change amount of the second dust accumulation degree value in each preset time period, and because the air conditioner is in a long-term operation process, the dust accumulation amount on the radiating fins of the indoor heat exchanger can be increased along with the increase of the operation time period of the air conditioner, that is, the second dust accumulation degree value after each preset time period can be changed, the change rate of the second dust accumulation degree value can be calculated according to the second dust accumulation degree value after each preset time period, that is, the second dust accumulation rate of the indoor heat exchanger, because the second dust accumulation rate has a great relationship with particulate matters in the air, the second dust accumulation rate of the indoor heat exchanger is uploaded to cloud big data for processing, so as to generate an indoor air quality change curve, so as to monitor and analyze the indoor air quality, and when the indoor air quality does not accord with a profile index, an air purification instruction is generated, so that the indoor air can be purified, and the user can maintain the health of the user. In an embodiment, the indoor unit of the air conditioner further includes an air purifying device, after the air purifying instruction is generated, the air purifying device can be directly controlled to operate to purify indoor air, and of course, when the air conditioner is not provided with the air purifying device, the air purifying instruction can be sent to an air purifier in the internet of things system through the internet of things system, so that the air purifier is controlled to purify indoor air, air quality is improved, physical health of a user is maintained, and functionality of the air conditioner is increased.
The invention also provides a home system, which comprises:
an air conditioner as described above; the method comprises the steps of,
and the air purifier is used for executing air purifying operation according to the indoor air quality data monitored by the air conditioner.
The household system comprises the air conditioner and the air purifier which is related through the Internet of things system, wherein the air conditioner calculates a first dust accumulation degree value of the outdoor heat exchanger and a second dust accumulation degree value of the indoor heat exchanger according to the dust accumulation amount of the outdoor heat exchanger and the dust accumulation amount of the indoor heat exchanger which are acquired in preset time intervals, calculates the change rate of the second dust accumulation degree value, namely the second dust accumulation change rate of the indoor heat exchanger, according to the second dust accumulation degree value after the preset time intervals, and then uploads the second dust accumulation change rate of the indoor heat exchanger to the cloud end for big data processing to generate an indoor air quality change curve so as to monitor and analyze indoor air quality, and according to indoor air quality data monitored by the air conditioner, an air purification instruction is generated when the indoor air quality does not accord with a brief index, and is sent to the air purifier in the Internet of things system through the Internet of things so as to control the air purifier to perform purification operation on indoor air, so as to improve the air quality, maintain the health of a user and increase the body health of the air conditioner.
In addition, the embodiment of the invention also provides a storage medium, and the storage medium stores a dust accumulation detection program, and the dust accumulation detection program realizes the steps of the dust accumulation detection method when being executed by a processor.
The method implemented when the dust detection program is executed may refer to various embodiments of the dust detection method of the present invention, and will not be described herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (12)
1. The utility model provides a laying dust detection device, is applied to the air conditioner, this laying dust detection device includes:
a first detection assembly, which is installed on an outdoor heat exchanger of the air conditioner and detects the dust accumulation amount of the outdoor heat exchanger;
the second detection component is arranged on the indoor heat exchanger of the air conditioner and used for detecting the dust accumulation amount of the indoor heat exchanger;
the controller is connected with the first detection assembly and the second detection assembly and used for receiving and processing dust volume data acquired by the first detection assembly and the second detection assembly;
the first detection component is arranged on the radiating fins of the outdoor unit heat exchanger and is used for detecting the dust accumulation amount between the adjacent radiating fins of the outdoor heat exchanger; the second detection component is arranged on the radiating fins of the indoor heat exchanger and used for detecting dust accumulation between adjacent radiating fins of the indoor heat exchanger;
Wherein,
the first detection assembly comprises at least one first resonant circuit, the first resonant circuit is an LC resonant circuit, a parallel plate capacitor of the first resonant circuit comprises a fifth electrode and a sixth electrode, and the fifth electrode and the sixth electrode of the first resonant circuit are respectively arranged on two adjacent radiating fins of the outdoor heat exchanger; and/or
The second detection assembly comprises at least one second resonant circuit, the second resonant circuit is an LC resonant circuit, a parallel plate capacitor of the second resonant circuit comprises a seventh electrode and an eighth electrode, and the seventh electrode and the eighth electrode of the second resonant circuit are respectively arranged on two adjacent radiating fins of the indoor heat exchanger.
2. The dust accumulation detection device as in claim 1 wherein the first detection assembly further comprises a third sensor electrically connected to the at least one first resonant circuit, the third sensor being connected to the controller to transmit the inductance or capacitance value acquired by the first resonant circuit to the controller; and/or the number of the groups of groups,
the second detection assembly further comprises a fourth sensor, the fourth sensor is electrically connected with at least one second resonant circuit, the fourth sensor is connected with the controller, and inductance values or capacitance values acquired through the second resonant circuit are transmitted to the controller.
3. The dust accumulation detection apparatus as in claim 1 or 2 further comprising a timer that triggers the controller at preset time intervals.
4. An air conditioner comprising the dust accumulation detecting device according to any one of claims 1 to 3.
5. The dust accumulation detecting method of an air conditioner as claimed in claim 4, wherein the dust accumulation detecting method comprises the steps of:
acquiring the dust accumulation amount of an outdoor heat exchanger and the dust accumulation amount of an indoor heat exchanger of the air conditioner every preset time length, and calculating a first dust accumulation degree value of the outdoor heat exchanger and a second dust accumulation degree value of the indoor heat exchanger;
comparing the first dust accumulation degree value with a preset first cleanliness threshold value, and comparing the second dust accumulation degree value with a preset second cleanliness threshold value;
outputting an early warning prompt when the first dust accumulation degree value is greater than or equal to a first cleanliness threshold and/or the second dust accumulation degree value is greater than or equal to a second cleanliness threshold;
the dust accumulation detection method further comprises the following steps:
and calculating the dust accumulation change rate of the indoor and outdoor heat exchangers according to the first dust accumulation degree value and the second dust accumulation degree value, and monitoring the indoor and outdoor air quality according to the dust accumulation change rate.
6. The dust accumulation detection method as in claim 5 wherein before performing all steps, the following steps are also performed:
the method comprises the steps of presetting a first cleanliness threshold of an outdoor heat exchanger and a second cleanliness threshold of an indoor heat exchanger.
7. The method according to claim 5, wherein the step of acquiring the dust accumulation amount of the outdoor heat exchanger and the dust accumulation amount of the indoor heat exchanger of the air conditioner for each preset time period, and calculating the first dust accumulation degree value of the outdoor heat exchanger and the second dust accumulation degree value of the indoor heat exchanger, specifically comprises:
detecting a first dust accumulation amount of the outdoor heat exchanger at a first moment, and detecting a second dust accumulation amount of the indoor heat exchanger at the first moment;
after a preset time length, detecting a third dust accumulation amount of the outdoor heat exchanger at a second moment, and detecting a fourth dust accumulation amount of the indoor heat exchanger at the second moment;
the third dust accumulation amount is differenced with the first dust accumulation amount, and a first dust accumulation degree value of the outdoor heat exchanger is obtained;
and the fourth dust accumulation amount is differed from the second dust accumulation amount, and a second dust accumulation degree value of the indoor heat exchanger is obtained.
8. The method for detecting dust accumulation according to claim 5, wherein the air conditioner includes an interactive interface, and the step of outputting an early warning prompt when the first dust accumulation degree value is greater than or equal to the first cleanliness threshold value and/or the second dust accumulation degree value is greater than or equal to the second cleanliness threshold value specifically includes:
when the first dust accumulation degree value is larger than or equal to the first cleanliness threshold, displaying an early warning prompt on the interactive interface; or alternatively, the first and second heat exchangers may be,
when the second dust accumulation degree value is larger than or equal to the second cleanliness threshold, displaying an early warning prompt on the interactive interface; or alternatively, the first and second heat exchangers may be,
and displaying an early warning prompt on the interactive interface when the first dust accumulation degree value is greater than or equal to the first cleanliness threshold and the second dust accumulation degree value is greater than or equal to the second cleanliness threshold.
9. The dust accumulation detection method as in claim 5 wherein the air conditioner further comprises an automatic dust removal device, and when outputting the early warning prompt, the following steps are further performed:
generating a dust removing instruction, and controlling the automatic dust removing device to execute dust removing operation according to the dust removing instruction.
10. The method for detecting dust accumulation according to claim 5, wherein,
The step of calculating the dust accumulation change rate of the outdoor heat exchanger according to the first dust accumulation degree value and monitoring the outdoor air quality according to the dust accumulation change rate specifically comprises the following steps:
calculating the change rate of the first dust accumulation degree value according to the first dust accumulation degree value obtained in preset time intervals, and taking the change rate as the first dust accumulation change rate of the outdoor heat exchanger;
big data processing is carried out on the first dust accumulation change rate, and an outdoor air quality change curve is generated so as to monitor the outdoor air quality; and/or the number of the groups of groups,
the step of calculating the dust accumulation change rate of the indoor heat exchanger according to the second dust accumulation degree value and detecting the indoor air quality according to the dust accumulation change rate specifically comprises the following steps:
calculating the change rate of a second dust accumulation degree value according to the second dust accumulation degree value obtained in preset time intervals, and taking the change rate as the second dust accumulation change rate of the indoor heat exchanger;
and carrying out big data processing on the second dust accumulation change rate to generate an indoor air quality change curve so as to monitor the indoor air quality.
11. A home system, the home system comprising:
the air conditioner of claim 4; the method comprises the steps of,
and the air purifier is used for executing air purifying operation according to the indoor air quality data monitored by the air conditioner.
12. A storage medium storing a dust detection program which, when executed by a processor, implements the steps of the dust detection method according to any one of claims 5-10.
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| JP2014018326A (en) * | 2012-07-13 | 2014-02-03 | Daikin Ind Ltd | Air conditioner |
| JP2016205645A (en) * | 2015-04-16 | 2016-12-08 | 三菱電機株式会社 | Air conditioner for vehicle, control method of air conditioner for vehicle, and re-coating method of heat exchanger |
| CN106989494A (en) * | 2017-05-10 | 2017-07-28 | 广东美的制冷设备有限公司 | Air conditioner and its frosting detection device and method |
| CN207019242U (en) * | 2017-08-02 | 2018-02-16 | 广东美的制冷设备有限公司 | Laying dust detecting device and air conditioner |
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