CN112484249A - Air conditioner control method and device and air conditioner - Google Patents
Air conditioner control method and device and air conditioner Download PDFInfo
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- CN112484249A CN112484249A CN202011233088.3A CN202011233088A CN112484249A CN 112484249 A CN112484249 A CN 112484249A CN 202011233088 A CN202011233088 A CN 202011233088A CN 112484249 A CN112484249 A CN 112484249A
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- difference value
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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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- 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 application provides an air conditioner control method and device and an air conditioner, and belongs to the field of electrical equipment. The air conditioner control method comprises the steps of obtaining air inlet volume and air outlet volume; calculating a current difference value between the air inlet volume and the air outlet volume, and calculating a difference value between the current difference value and a preset difference value threshold; and if the difference value is not within the preset range, controlling the air inlet fan to be started. The method can improve the energy efficiency of the air conditioner and prolong the service life of the motor.
Description
Technical Field
The application relates to the technical field of electrical equipment, in particular to an air conditioner control method and device and an air conditioner.
Background
With the increasing emphasis on energy conservation and emission reduction in China, the requirements on the capacity and the energy efficiency of the air conditioner are higher and higher, and how to further improve the electric energy utilization rate of the air conditioner becomes the key development direction of various manufacturers. Some energy efficiency control schemes exist in the related art, for example, a scheme for controlling the rotation speed of an outdoor unit according to a high pressure of a refrigerant. However, the effect of the energy efficiency control scheme in the related art needs to be further improved.
Disclosure of Invention
The present application is directed to solving, at least to some extent, one of the technical problems in the related art.
The technical scheme provided by the application is as follows:
in a first aspect, the present application provides an air conditioner control method, including: acquiring air intake and air output; calculating a current difference value between the air inlet volume and the air outlet volume, and calculating a difference value between the current difference value and a preset difference value threshold; and if the difference value is not within the preset range, controlling the air inlet fan to be started.
Optionally, the method further includes: and adjusting the rotating speed of the air inlet fan according to the difference value.
Optionally, the adjusting of the rotation speed of the air inlet fan according to the difference includes: and if the duration time of the difference value out of the preset range is greater than a preset first time threshold, adjusting the rotating speed of the air inlet fan according to the difference value.
Optionally, the preset range includes a first threshold and a second threshold, the first threshold is smaller than the second threshold, and the adjusting the rotation speed of the intake fan according to the difference includes: if the difference value is smaller than the first threshold value, increasing the rotating speed of the air inlet fan; and if the difference value is larger than the second threshold value, reducing the rotating speed of the air inlet fan.
Optionally, the method further includes: detecting the running time that the rotating speed of the air inlet fan is the maximum rotating speed; and if the running time is greater than a preset second time threshold, starting energy efficiency exception handling.
Optionally, the starting energy efficiency exception handling includes: performing energy efficiency adjustment, the energy efficiency adjustment comprising: controlling the upper and lower wind sweeping wind deflectors to be opened to a maximum angle, returning the left and right wind sweeping wind deflectors to a middle position, and adjusting the maximum rotating speed of the wind outlet motor to operate a preset third time threshold; after the third time threshold value is operated, controlling the rotating speed of the air outlet motor to recover to the rotating speed before adjustment; after the energy efficiency is adjusted, the rotating speed of the air inlet fan is detected again; if the rotating speed of the air inlet fan is the highest rotating speed, energy efficiency adjustment is carried out again; and if the frequency of the energy efficiency regulation reaches the preset maximum frequency, performing energy efficiency abnormity alarm.
Optionally, the performing energy efficiency abnormality alarm includes: triggering an energy efficiency abnormity indicator lamp to flicker; alternatively, a reminder message is sent to the user.
Optionally, obtain the intake, include: detecting the heat on the surface of the thin film resistor by an infrared thermal imaging sensor; acquiring air volume corresponding to the detected heat as an air intake according to a preset corresponding relation between the heat and the air volume; the air inlet air quantity detection device comprises the infrared thermal imaging sensor and the thin film resistor, and is arranged at the air inlet.
Optionally, obtaining the air output includes: detecting the rotating angle of the buoy through a photoelectric switch; acquiring air volume corresponding to the detected angle as air output according to a preset corresponding relation between the angle and the air volume; the air outlet air quantity detection device comprises the buoy and the photoelectric switch, and is arranged at the air outlet.
In a second aspect, the present application provides an air conditioning control apparatus comprising: the acquisition module is used for acquiring the air inlet volume and the air outlet volume; the calculating module is used for calculating the current difference value between the air inlet volume and the air outlet volume and calculating the difference value between the current difference value and a preset difference value threshold; and the control module is used for controlling the air inlet fan to be started when the difference value is not within the preset range.
In a third aspect, the present application provides an air conditioner comprising: the air conditioning control apparatus according to any one of the second aspect of the present application.
The technical scheme provided by the application has the following technical effects:
through obtaining intake and air output, start the air inlet amount of wind according to the difference of intake and air output and carry out the amount of wind compensation, can guarantee as far as possible that the air output is stable through the amount of wind compensation, consequently can promote the efficiency control effect. Moreover, the load of the air outlet motor can be reduced by compensating the air volume, the long-time high-load operation of the motor is avoided, and the service life of the motor is prolonged. Meeting the national requirements of energy conservation and emission reduction.
Additional aspects and advantages of the present application 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 present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application 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 flowchart of an air conditioner control method according to an embodiment of the present application;
FIG. 2 is a schematic view of an air conditioning structure in an embodiment of the present application;
fig. 3 is a schematic structural diagram of an air outlet air volume detection device in the embodiment of the present application;
fig. 4 is a schematic structural diagram of an air inlet air quantity detection device in the embodiment of the present application;
fig. 5 is a schematic flowchart of an air conditioner control method according to another embodiment of the present application;
fig. 6 is a schematic structural diagram of an air conditioning control device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an air conditioner according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar modules or modules having the same or similar functionality throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the application include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic flowchart of an air conditioner control method according to an embodiment of the present application. As shown in fig. 1, the method includes:
s11: and obtaining the air inlet volume and the air outlet volume.
Wherein, can set up amount of wind detection device respectively at air intake and air outlet to detect intake and air output.
S12: and calculating a current difference value between the air inlet volume and the air outlet volume, and calculating a difference value between the current difference value and a preset difference value threshold.
Generally, when air is discharged smoothly, the air inlet volume and the air outlet volume are dynamically balanced, and the difference between the air inlet volume and the air outlet volume is a fixed value (which may be called a difference threshold). When the air conditioner has the problem of unsmooth air outlet caused by filth blockage and the like, the difference value of the air inlet quantity and the air outlet quantity has larger change relative to the fixed value, so that abnormity judgment can be carried out based on the difference value of the air inlet quantity and the air outlet quantity.
Suppose that the current difference between the obtained intake air volume and the output air volume is represented as deltatAnd if the difference threshold value Δ is above, the difference between the current difference value and the difference threshold value is represented as: delta-deltat-Δ。
S13: and if the difference value is not within the preset range, controlling the air inlet fan to be started.
For example, the predetermined range is expressed as [ -k, k [ -k]Then, then
When the air is supplied, the air intake fan is started.
The difference threshold Δ and the value k of the preset range may be set according to actual conditions.
After the air inlet fan is started, air volume compensation can be carried out so as to ensure that the air volume is stable as much as possible.
In this embodiment, through obtaining intake and air output, start the air inlet amount of wind according to the difference of intake and air output and carry out the amount of wind compensation, can guarantee as far as possible that the air output is stable through the amount of wind compensation, consequently can promote the efficiency control effect. Moreover, the load of the air outlet motor can be reduced by compensating the air volume, the long-time high-load operation of the motor is avoided, and the service life of the motor is prolonged. Meeting the national requirements of energy conservation and emission reduction.
With reference to the air conditioning structure shown in fig. 2, in the embodiment of the present application, an air volume detection device (not shown in fig. 2) is respectively installed at the air outlet and the air inlet of the air conditioner, and an air inlet fan is further installed at the air inlet. The air quantity detection device is used for collecting air quantity, and the air inlet fan is used for compensating the air quantity.
Fig. 3 is a schematic structural diagram of an air outlet air volume detection device in an embodiment of the present application. As shown in fig. 3, the air outlet volume detection device includes a float and a photoelectric switch. The fixed ends of the float and the photoelectric switch can be arranged on the shell of the air outlet. The number of the photoelectric switches can be divided according to the windshields of the air conditioner, for example, the installation positions of the photoelectric switches are set to be angles theta 1 blown by the air conditioner when the windshields 1 are used for the first time in an ideal environment, and the installation positions of the photoelectric switches are also set to be angles theta 2, theta 3 and theta 4 blown by the air conditioner when the windshields 2, 3 and 4 are used for the air conditioner. For example, when the windshield 1 is used, the controller main control system MCU detects that the level signal of the photoelectric switch 1 changes, and then can determine that the floating angle is θ 1, the air output is normal, and the air output value of the corresponding windshield 1 is ∈Go out. Under ideal conditions, the angle theta and the air output epsilon are differentGo outThe corresponding relation of (A) is preset by the manufacturer.
Fig. 4 is a schematic structural diagram of the air inlet air quantity detection device. The air inlet air quantity detection device comprises a film resistor and an infrared thermal imaging sensor, the two elements are installed on a shell of an air inlet of the air conditioner, and the infrared thermal imaging sensor is placed above the film resistor. There are various ways of fixing, such as fixing with injection-molded parts. The two components are respectively connected to a controller main board (namely MCU) of the air conditioner, and the main board provides power supply and control signals.
The surface of the thin film resistor can accumulate certain heat Q after continuous stable current is introduced, and the Q value and the size of air flow circulating around, namely epsilonIntoIs related toIntoRepresenting the intake air. Assuming that the heat corresponding to the air conditioner windshield 1 in an ideal environment and the first use of the air conditioner is Q1, and the heat corresponding to the windshields 2, 3 and 4 is Q2, Q3 and Q4, the infrared thermal imaging sensor collects the heat on the surface of the thin film resistor in real time, and the lower the Q value is, the higher the intake air is. Under the same ideal condition, different Q values and air intake epsilonIntoThe corresponding relation of (A) is preset by the manufacturer.
Fig. 5 is a flowchart illustrating an air conditioner control method according to another embodiment of the present application. As shown in fig. 5, the method includes:
s501: and collecting the heat Q on the surface of the air inlet film resistor.
For example, the infrared thermal imaging sensor detects the heat Q and transmits the heat Q to the MCU of the air conditioner.
S502: converting heat Q into intake epsilonInto。
For example, the MCU is used for calculating the intake air quantity epsilon according to the preset heat quantity QIntoThe relationship between the heat and the air is converted into the intake air.
S503: and collecting the air outlet floating angle theta.
The float angle is detected, for example, by a change in the level of the photoelectric switch.
S504: converting the angle theta into the air output epsilonGo out。
For example, the MCU is used for calculating the wind output epsilon according to the preset angle thetaGo outThe relationship between the wind and the water is converted into the wind output.
S505: and calculating the current difference value of the air inlet volume and the air outlet volume, and calculating the difference value of the current difference value and the difference value threshold.
For example, the current difference Δt＝εInto-εGo outDifference of the current difference and the difference threshold: delta-deltat-Δ
S506: and judging whether delta is more than or equal to-k and less than or equal to k, if so, executing S507, and otherwise, executing S508.
S507: and determining that the energy efficiency of the air conditioner is not attenuated. S501 and its subsequent steps may be repeatedly performed thereafter.
S508: and judging whether the duration time of the difference value out of the range of [ -k, k ] is greater than a preset first time threshold (t > t1), if so, executing S510, otherwise, repeatedly executing S506 and the subsequent steps.
S509: the air intake fan at the air intake is turned on.
And when the difference value delta is not in the range of [ -k, k ] and the duration is greater than the set threshold, judging that the air conditioner air volume is abnormal. In order to inhibit the attenuation of the air volume of the air conditioner, the output capability of the motor can be improved by the controller main control system MCU, the power consumption of the motor is increased, and the energy efficiency of the air conditioner is poor. On the other hand, the motor load becomes large, which affects the service life of the motor. To make up for the defect, an air inlet fan at the air inlet is started, the airflow entering the air conditioner heat exchanger is increased, the load of an air outlet motor in the air conditioner is reduced, delta returns to the interval of (-k, k), and the energy efficiency is recovered to the optimal state. The air inlet fan is driven by a low-power direct current motor, and the output voltage is below DC 12V.
S510: and judging whether delta < -k exists, if yes, executing S512, and otherwise, executing S511.
S511: the rotating speed of the air inlet fan is reduced. And then repeatedly executing the step S510 and the subsequent steps.
S512: the rotating speed of the air inlet fan is increased.
S513: and judging whether the running time of the maximum rotating speed of the air inlet fan is greater than a preset second time threshold (t > t2), if so, executing S514, and otherwise, repeatedly executing S510 and the subsequent steps.
S514: and controlling the upper and lower wind sweeping air deflectors to be opened to the maximum angle, controlling the left and right wind sweeping air deflectors to return to the middle position, adjusting the maximum rotating speed of the air outlet motor to operate for a preset third time threshold (t is t3), and controlling the rotating speed of the air outlet motor to recover to the rotating speed before adjustment after t3 is long.
S515: and judging whether the rotating speed of the air inlet fan is the maximum rotating speed or not, if so, executing S516, and repeatedly executing S510 and the subsequent steps.
S516: the iteration number is added with 1, and the initial value of the iteration number is 0.
S517: and judging whether the iteration number is greater than 2, if so, executing S518, otherwise, repeatedly executing S515 and the subsequent steps.
In the present embodiment, the maximum number is 2 as an example, and other maximum numbers may be set according to actual situations.
S518: and displaying the energy efficiency fault lamp.
In this embodiment, energy efficiency fault lamps are displayed as an example when a fault alarm is performed, and it can be understood that other alarm modes, such as pushing a message to a user, may also be used.
The alarm lamp or the alarm message can remind a user of troubleshooting problems, timely clean the air conditioner, check whether foreign matters exist or not and judge whether air circulation at the installation position is smooth or not.
In this embodiment, through obtaining intake and air output, start the air inlet amount of wind according to the difference of intake and air output and carry out the amount of wind compensation, can guarantee as far as possible that the air output is stable through the amount of wind compensation, consequently can promote the efficiency control effect. Moreover, the load of the air outlet motor can be reduced by compensating the air volume, the long-time high-load operation of the motor is avoided, and the service life of the motor is prolonged. The rotating speed of the air inlet fan is adjusted according to the difference value, so that the air output can be adjusted in time. By setting the maximum times, the air inlet fan can be prevented from working for a long time, and the alarm can be given in time. The user can timely know the current energy efficiency condition through alarming, and the user can conveniently carry out energy efficiency improvement operation.
Fig. 6 is a schematic structural diagram of an air conditioning control device according to an embodiment of the present application. As shown in fig. 6, the apparatus includes an acquisition module 61, a calculation module 62, and a control module 63.
The acquisition module 61 is used for acquiring the air inlet volume and the air outlet volume;
a calculating module 62, configured to calculate a current difference between the intake air volume and the output air volume, and calculate a difference between the current difference and a preset difference threshold;
and the control module 63 is used for controlling the air inlet fan to be started when the difference value is not within the preset range.
In some embodiments, further comprising:
and the adjusting module is used for adjusting the rotating speed of the air inlet fan according to the difference value.
In some embodiments, the adjustment module is specifically configured to: and if the duration time of the difference value out of the preset range is greater than a preset first time threshold, adjusting the rotating speed of the air inlet fan according to the difference value.
In some embodiments, the preset range includes a first threshold and a second threshold, the first threshold is smaller than the second threshold, and the adjustment module is specifically configured to: if the difference value is smaller than the first threshold value, increasing the rotating speed of the air inlet fan; and if the difference value is larger than the second threshold value, reducing the rotating speed of the air inlet fan.
In some embodiments, further comprising: the energy efficiency abnormity processing module is used for detecting the running time that the rotating speed of the air inlet fan is the maximum rotating speed; and if the running time is greater than a preset second time threshold, starting energy efficiency exception handling.
In some embodiments, the energy efficiency exception handling module is specifically configured to: performing energy efficiency adjustment, the energy efficiency adjustment comprising: controlling the upper and lower wind sweeping wind deflectors to be opened to a maximum angle, returning the left and right wind sweeping wind deflectors to a middle position, and adjusting the maximum rotating speed of the wind outlet motor to operate a preset third time threshold; after the third time threshold value is operated, controlling the rotating speed of the air outlet motor to recover to the rotating speed before adjustment; after the energy efficiency is adjusted, the rotating speed of the air inlet fan is detected again; if the rotating speed of the air inlet fan is the highest rotating speed, energy efficiency adjustment is carried out again; and if the frequency of the energy efficiency regulation reaches the preset maximum frequency, performing energy efficiency abnormity alarm.
In some embodiments, further comprising: the energy efficiency alarm module is used for triggering the energy efficiency abnormal indicator lamp to flicker; alternatively, a reminder message is sent to the user.
In some embodiments, the obtaining module is specifically configured to: detecting the heat on the surface of the thin film resistor by an infrared thermal imaging sensor; acquiring air volume corresponding to the detected heat as an air intake according to a preset corresponding relation between the heat and the air volume; the air inlet air quantity detection device comprises the infrared thermal imaging sensor and the thin film resistor, and is arranged at the air inlet.
In some embodiments, the obtaining module is specifically configured to: obtain the air output, include: detecting the rotating angle of the buoy through a photoelectric switch; acquiring air volume corresponding to the detected angle as air output according to a preset corresponding relation between the angle and the air volume; the air outlet air quantity detection device comprises the buoy and the photoelectric switch, and is arranged at the air outlet.
Fig. 7 is a schematic structural diagram of an air conditioner according to an embodiment of the present application. As shown in fig. 7, the air conditioner includes a control device 71, which may be as shown in fig. 6, and an intake air fan 72.
The air conditioner may further include: an air inlet air quantity detection device 73 and an air outlet air quantity detection device 74. An air inlet air quantity detection device 73 arranged at the air inlet and used for detecting the air inlet quantity; an air outlet air volume detection device 74 arranged at the air outlet and used for detecting the air volume; the air inlet air quantity detection device 73 and the air outlet air quantity detection device 74 are both connected with the control device 71.
In some embodiments, the air inlet volume detecting device includes: infrared thermal imaging sensors and thin film resistors.
In some embodiments, the air outlet volume detecting device includes: floats and photoelectric switches.
It is understood that the apparatus and system of the present embodiment correspond to the method embodiments described above, and specific contents may be referred to the related description of the method embodiments, and are not described in detail herein.
In this embodiment, through obtaining intake and air output, start the air inlet amount of wind according to the difference of intake and air output and carry out the amount of wind compensation, can guarantee as far as possible that the air output is stable through the amount of wind compensation, consequently can promote the efficiency control effect. Moreover, the load of the air outlet motor can be reduced by compensating the air volume, the long-time high-load operation of the motor is avoided, and the service life of the motor is prolonged.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a programmable gate array (PGT), a field programmable gate array (FPGT), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (14)
1. An air conditioner control method, comprising:
acquiring air intake and air output;
calculating a current difference value between the air inlet volume and the air outlet volume, and calculating a difference value between the current difference value and a preset difference value threshold;
and if the difference value is not within the preset range, controlling the air inlet fan to be started.
2. The method of claim 1, further comprising:
and adjusting the rotating speed of the air inlet fan according to the difference value.
3. The method of claim 2, wherein said adjusting the speed of the intake air fan based on the difference comprises:
and if the duration time of the difference value out of the preset range is greater than a preset first time threshold, adjusting the rotating speed of the air inlet fan according to the difference value.
4. The method of claim 2, wherein the predetermined range includes a first threshold and a second threshold, the first threshold being less than the second threshold, and wherein adjusting the speed of the intake air fan based on the difference comprises:
if the difference value is smaller than the first threshold value, increasing the rotating speed of the air inlet fan;
and if the difference value is larger than the second threshold value, reducing the rotating speed of the air inlet fan.
5. The method of claim 2, further comprising:
detecting the running time that the rotating speed of the air inlet fan is the maximum rotating speed;
and if the running time is greater than a preset second time threshold, starting energy efficiency exception handling.
6. The method of claim 5, characterized in that the initiating energy-efficient exception handling comprises:
performing energy efficiency adjustment, the energy efficiency adjustment comprising: controlling the upper and lower wind sweeping wind deflectors to be opened to a maximum angle, returning the left and right wind sweeping wind deflectors to a middle position, and adjusting the wind outlet motor to operate according to a third preset time threshold value at the maximum rotating speed; after the third time threshold value is operated, controlling the rotating speed of the air outlet motor to recover to the rotating speed before adjustment;
after the energy efficiency is adjusted, the rotating speed of the air inlet fan is detected again;
if the rotating speed of the air inlet fan is the highest rotating speed, energy efficiency adjustment is carried out again;
and if the frequency of the energy efficiency regulation reaches the preset maximum frequency, performing energy efficiency abnormity alarm.
7. The method of claim 6, wherein the alarming for energy efficiency anomalies comprises:
triggering an energy efficiency abnormity indicator lamp to flicker; alternatively, the first and second electrodes may be,
and sending a reminding message to the user.
8. The method of any one of claims 1-7, wherein the obtaining intake air comprises:
detecting the heat on the surface of the thin film resistor by an infrared thermal imaging sensor;
acquiring air volume corresponding to the detected heat as an air intake according to a preset corresponding relation between the heat and the air volume;
the air inlet air quantity detection device comprises the infrared thermal imaging sensor and the thin film resistor, and is arranged at the air inlet.
9. The method according to any one of claims 1-7, wherein the obtaining of the air output comprises:
detecting the rotating angle of the buoy through a photoelectric switch;
acquiring air volume corresponding to the detected angle as air output according to a preset corresponding relation between the angle and the air volume;
the air outlet air quantity detection device comprises the buoy and the photoelectric switch, and is arranged at the air outlet.
10. An air conditioning control device, characterized by comprising:
the acquisition module is used for acquiring the air inlet volume and the air outlet volume;
the calculating module is used for calculating the current difference value between the air inlet volume and the air outlet volume and calculating the difference value between the current difference value and a preset difference value threshold;
and the control module is used for controlling the air inlet fan to be started when the difference value is not within the preset range.
11. An air conditioner, comprising: the control device of claim 10.
12. The air conditioner according to claim 11, further comprising:
the air inlet air quantity detection device is arranged at the air inlet and is used for detecting the air inlet quantity;
the air outlet air quantity detection device is arranged at the air outlet and is used for detecting the air quantity;
the air inlet air quantity detection device and the air outlet air quantity detection device are both connected with the control device.
13. The air conditioner according to claim 12, wherein the intake air volume detecting means comprises: infrared thermal imaging sensors and thin film resistors.
14. The air conditioner according to claim 12, wherein the outlet air volume detecting device includes: floats and photoelectric switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011233088.3A CN112484249B (en) | 2020-11-06 | 2020-11-06 | Air conditioner control method and device and air conditioner |
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| CN202011233088.3A CN112484249B (en) | 2020-11-06 | 2020-11-06 | Air conditioner control method and device and air conditioner |
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| CN112484249A true CN112484249A (en) | 2021-03-12 |
| CN112484249B CN112484249B (en) | 2021-11-23 |
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| CN114636238A (en) * | 2022-04-19 | 2022-06-17 | 珠海格力电器股份有限公司 | Motor temperature rise control method |
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