CN111156662B - Cross-flow fan blade assembly detection method, computer readable storage medium and air conditioner - Google Patents
Cross-flow fan blade assembly detection method, computer readable storage medium and air conditioner Download PDFInfo
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- CN111156662B CN111156662B CN201911417869.5A CN201911417869A CN111156662B CN 111156662 B CN111156662 B CN 111156662B CN 201911417869 A CN201911417869 A CN 201911417869A CN 111156662 B CN111156662 B CN 111156662B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a cross-flow fan blade assembly detection method, a computer readable storage medium and an air conditioner. Whether the fan blades have the tripping condition is judged by comparing the rotating speed difference value of the operated fan, the detection mode is simple, rapid and accurate, analysis and judgment of the PWM duty ratio of the motor are added on the basis of primarily judging the tripping of the fan blades, the detection accuracy is further ensured, whether the assembly is completed or not can be quickly and effectively detected after the through-flow fan blades are installed, and the operation reliability of the air conditioning unit is improved.
Description
Technical Field
The invention relates to the technical field of air conditioner assembly detection, in particular to a cross-flow fan blade assembly detection method, a computer readable storage medium and an air conditioner.
Background
As is well known, after the air conditioner is used for a period of time, a layer of dirt is attached to an inner fan, a filter screen and a cross-flow fan blade, and then the dirt becomes a pollution source to pollute air when the air conditioner is used. At present, for a filter screen, a client can easily take out and clean the filter screen; for the evaporator, self-cleaning can be performed by using an automatic cleaning function; however, it is basically not feasible for the cross-flow fan. Based on the current situation, the detachable inner fan and the fan blade are bound to become a big hot spot, but if assembly errors or abnormal installation occur after a user cleans the inner fan and the cross-flow fan blade and the inner fan blade cannot be reliably connected, so that how to identify and detect in time becomes a difficult point.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a detection method based on the assembling reliability of an air-conditioning cross-flow fan blade, aiming at effectively detecting whether the assembling is reliable or not in time after a user finishes cleaning and installing.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cross-flow fan assembly detection method comprises the steps of detecting the power-on condition after a cross-flow fan is installed, preliminarily judging whether the cross-flow fan is accurately assembled or not by detecting the rotating speed condition of the cross-flow fan in the operation process, further analyzing and judging whether the cross-flow fan is accurately assembled or not by detecting PWM (pulse width modulation) duty ratio information of a motor, and stopping the operation of an inner fan if the judgment result is that the cross-flow fan is not accurately assembled. Whether the fan blades have the tripping condition is judged by comparing the rotating speed difference value of the operated fan, the detection mode is simple, rapid and accurate, analysis and judgment of the PWM duty ratio of the motor are added on the basis of primarily judging the tripping of the fan blades, the detection accuracy is further ensured, whether the assembly is completed or not can be quickly and effectively detected after the through-flow fan blades are installed, and the operation reliability of the air conditioning unit is improved.
Further, the detecting the power-on condition specifically includes: and detecting whether the first electrifying condition is met, and if so, detecting whether the through-flow fan blade is accurately assembled. After assembly, electrifying for the first time shows that the assembly of the cross-flow fan blade is not detected, and in this case, the assembly precision of the cross-flow fan blade needs to be detected to ensure the subsequent stable and normal operation.
Further, the detecting the power-on condition specifically includes: and detecting whether the first power-on condition is met, and if not, directly ending the detection process. When the detection is not the first power-on, the detection indicates that the cross-flow fan blade is detected when the power-on is carried out before, and the power-on is carried out again, which also indicates that the cross-flow fan blade has no problem in the detection and can be normally used, the detection operation is directly quitted.
Further, the preliminary judgment of whether the cross-flow fan blade is accurately assembled or not by detecting the rotating speed condition of the cross-flow fan blade in the operation process specifically comprises the following steps: and controlling the air deflector to be opened to a certain angle, setting the target rotating speed of the inner fan, starting the inner fan for one second, then performing closed-loop rotating speed control, detecting the current rotating speed of the inner fan when the air deflector is closed to a certain angle, and preliminarily judging whether the cross-flow fan blade is accurately assembled or not by calculating the difference value between the current rotating speed of the inner fan and the target rotating speed of the inner fan. The rotating speed is detected by controlling the closing of the air deflector, and whether the fan blade is tripped or not is judged according to the rotating speed difference, so that the assembly condition of the cross-flow fan blade can be roughly judged preliminarily, meanwhile, the rotating speed is detected quickly and conveniently, and the efficiency of preliminary detection and judgment can be improved.
Further, the step of calculating the difference between the current rotating speed of the inner fan and the target rotating speed of the inner fan and preliminarily judging whether the cross-flow fan blade is accurately assembled specifically comprises the following steps: setting the target rotating speed of the inner fan as X, detecting the current rotating speed of the inner fan as Y, and if Y-X is larger than A, judging that the cross-flow fan blade is tripped, and stopping the inner fan, wherein A is a preset rotating speed value. When the fan blades are not connected with the fan almost, the fan blades are in no-load state, namely, the wind resistance is reduced compared with the normal state, and at the moment, even if the driving signal of the fan is small, the rotating speed is very high; if the rotating speed meets the condition, the fan and the fan blade can be judged to be tripped.
Further, the step of calculating the difference between the current rotating speed of the inner fan and the target rotating speed of the inner fan and preliminarily judging whether the cross-flow fan blade is accurately assembled specifically comprises the following steps: setting the target rotating speed of the inner fan as X, detecting the current rotating speed of the inner fan as Y, and if Y-X is less than or equal to A, further judging whether the cross-flow fan blade is accurately assembled or not by detecting the pulse width modulation of the motor.
Further, the further analysis and judgment of the PWM duty cycle information of the detection motor is specifically as follows: and controlling the air deflector to stop running, adjusting the target rotating speed to be Z, restarting the inner fan to run, detecting that the PWM duty ratio information of the motor at the moment is recorded as P% after the rotating speed reaches a Z value, and stopping the inner fan if | P% -N% | is greater than B%, wherein N is a test value under a normal condition, and B is a preset constant value. The method is used for detecting the condition that the resistance is relatively increased due to improper assembly, and the condition of the inner fan blade can be accurately judged by comparing the current test value with a reference value.
Further, the further analysis and judgment of the PWM duty cycle information of the detection motor is specifically as follows: and controlling the air deflector to stop running, adjusting the target rotating speed to be Z, restarting the inner fan to run, detecting that the PWM duty ratio information of the motor is recorded as P% when the rotating speed reaches a Z value, and if | P% -N% | is less than or equal to B%, maintaining the inner fan to run in the current state and finishing the detection.
A computer readable storage medium for storing a computer program which, when invoked by a processor, implements the cross-flow fan blade assembly inspection method of any one of the above.
An air conditioner comprising a processor and a memory, wherein the memory is used for storing a computer program, and the computer program is invoked by the processor to implement the cross-flow fan blade assembly detection method.
The cross-flow fan blade assembly detection method, the computer readable storage medium and the air conditioner provided by the invention have the beneficial effects that: whether the fan blades have the tripping condition is judged by comparing the rotating speed difference value of the operated fan, the detection mode is simple, rapid and accurate, analysis and judgment of the PWM duty ratio of the motor are added on the basis of primarily judging the tripping of the fan blades, the detection accuracy is further ensured, whether the assembly is completed or not can be quickly and effectively detected after the through-flow fan blades are installed, and the operation reliability of the air conditioning unit is improved.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example 1: a cross-flow fan blade assembly detection method.
As shown in fig. 1, a method for detecting assembly of a cross-flow fan blade includes the following steps:
s1, detecting entry conditions: whether the first power-on condition is met; if yes, go to step S2, otherwise go to step S8 directly.
And S2, the air deflector is opened to the maximum position and starts to detect at the starting moment of closing.
S3, setting the target rotating speed of the inner fan as X, immediately entering closed-loop rotating speed control after the inner fan is started for 1 second, recording the rotating speed of the inner fan at the moment and recording the rotating speed as a Y value when the air deflector is closed to A degree, judging whether Y-X is more than 200 revolutions, and if yes, entering S4; otherwise, the process proceeds to step S5.
And S4, judging that the fan blade is tripped, and entering the step S6.
S5, stopping the operation of the air deflector, adjusting the target rotating speed to be a Z value, recording the current PWM duty ratio information as P% after the rotating speed reaches the Z value, judging whether the absolute value | P% -N% | is greater than B%, and entering the step S6 if the absolute value | P% -N% | is greater than B%; otherwise, the process proceeds to step S7.
S6, the inner fan stops immediately, the display panel displays the reminding information, the air deflector is opened to the maximum position, and the step S8 is entered.
And S7, the air deflector continues to operate and completes the closing action.
S8, the detection process is completed.
In this embodiment, the position a of the air deflector refers to a specific angle according to the zero reference point of the wind sweeping structure, the set rotation speed X, Y is a specific rotation speed value, and N% is a test value under normal conditions.
Example 2: a computer readable storage medium.
A computer-readable storage medium for storing a computer program, wherein the computer program is invoked by a processor to implement the cross-flow fan blade assembly inspection method of embodiment 1.
Example 3: an air conditioner.
An air conditioner comprises a processor and a memory, wherein the memory is used for storing a computer program, and the computer program realizes the cross-flow fan blade assembly detection method in embodiment 1 when being called by the processor.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.
Claims (7)
1. A cross-flow fan assembly detection method is characterized in that after installation of a cross-flow fan is completed, power-on conditions are detected, whether the cross-flow fan is accurately assembled or not is preliminarily judged by detecting the rotating speed conditions of the cross-flow fan in the operation process, whether the cross-flow fan is accurately assembled or not is further analyzed and judged by detecting PWM (pulse width modulation) duty ratio information of a motor, and if the judgment result is that the cross-flow fan is not accurately assembled, an inner fan stops operating;
the method for preliminarily judging whether the cross-flow fan blade is accurately assembled or not by detecting the rotating speed condition of the cross-flow fan blade in the operation process specifically comprises the following steps: controlling the air deflector to be opened to the maximum position, starting detection at the starting moment of closing of the air deflector, setting the target rotating speed of the inner fan, starting the inner fan for one second, then performing closed-loop rotating speed control, detecting the current rotating speed of the inner fan when the air deflector is closed to a certain angle, and preliminarily judging whether the cross-flow fan is accurately assembled or not by calculating the difference value between the current rotating speed of the inner fan and the target rotating speed of the inner fan;
the step of calculating the difference value between the current rotating speed of the inner fan and the target rotating speed of the inner fan and preliminarily judging whether the cross-flow fan blade is accurately assembled specifically comprises the following steps: setting a target rotating speed of an inner fan as X, detecting the current rotating speed of the inner fan as Y, and if Y-X is larger than A, judging that the cross-flow fan blade is tripped and stopping the inner fan, wherein A is a preset rotating speed value; the step of calculating the difference value between the current rotating speed of the inner fan and the target rotating speed of the inner fan and preliminarily judging whether the cross-flow fan blade is accurately assembled specifically comprises the following steps: setting the target rotating speed of the inner fan as X, detecting the current rotating speed of the inner fan as Y, and if Y-X is less than or equal to A, further judging whether the cross-flow fan blade is accurately assembled or not by detecting the pulse width modulation of the motor.
2. The cross-flow fan blade assembly detection method of claim 1, wherein the detecting power-on condition specifically comprises: and detecting whether the first electrifying condition is met, and if so, detecting whether the through-flow fan blade is accurately assembled.
3. The cross-flow fan blade assembly detection method of claim 1, wherein the detecting power-on condition specifically comprises: and detecting whether the first power-on condition is met, and if not, directly ending the detection process.
4. The cross-flow fan blade assembly detection method of claim 1, wherein the further analysis of the PWM duty cycle information of the detection motor to determine whether the cross-flow fan blade is accurately assembled specifically comprises: and controlling the air deflector to stop running, adjusting the target rotating speed to be Z, restarting the inner fan to run, detecting that the PWM duty ratio information of the motor at the moment is recorded as P% after the rotating speed reaches a Z value, and stopping the inner fan if | P% -N% | is greater than B%, wherein N is a test value under a normal condition, and B is a preset constant value.
5. The cross-flow fan blade assembly detection method of claim 1, wherein the further analysis of the PWM duty cycle information of the detection motor to determine whether the cross-flow fan blade is accurately assembled specifically comprises: and controlling the air deflector to stop running, adjusting the target rotating speed to be Z, restarting the inner fan to run, detecting that the PWM duty ratio information of the motor is recorded as P% when the rotating speed reaches a Z value, and if | P% -N% | is less than or equal to B%, maintaining the inner fan to run in the current state and finishing the detection.
6. A computer-readable storage medium for storing a computer program, wherein the computer program, when being invoked by a processor, implements the through-flow fan assembly inspection method of any one of claims 1 to 5.
7. An air conditioner comprising a processor and a memory, wherein the memory is used for storing a computer program, and the computer program is invoked by the processor to implement the cross-flow fan blade assembly inspection method of any one of claims 1 to 5.
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| CN201911417869.5A CN111156662B (en) | 2019-12-31 | 2019-12-31 | Cross-flow fan blade assembly detection method, computer readable storage medium and air conditioner |
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| CN201911417869.5A CN111156662B (en) | 2019-12-31 | 2019-12-31 | Cross-flow fan blade assembly detection method, computer readable storage medium and air conditioner |
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| CN111928422A (en) * | 2020-07-23 | 2020-11-13 | Tcl空调器(中山)有限公司 | Fan system operation abnormity detection method and device, air conditioner and storage medium |
| CN113007870B (en) * | 2021-03-29 | 2022-05-24 | 珠海格力智能装备有限公司 | Air conditioner detection method, device and system |
| CN114294792A (en) * | 2021-12-10 | 2022-04-08 | 青岛海尔空调电子有限公司 | Method for judging correct installation of fan of air conditioner indoor unit |
| CN114543260B (en) * | 2022-03-25 | 2023-03-28 | 珠海格力电器股份有限公司 | Filter screen state detection method and device, storage medium and air purifier |
| CN115218342A (en) * | 2022-07-06 | 2022-10-21 | 珠海格力电器股份有限公司 | Indoor fan control method and device of air conditioner, storage medium and air conditioner |
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| JPH01230944A (en) * | 1988-03-09 | 1989-09-14 | Matsushita Seiko Co Ltd | Ventilation fan |
| CN203561502U (en) * | 2013-11-25 | 2014-04-23 | 珠海格力电器股份有限公司 | Cross-flow fan blade detection device |
| CN105954537B (en) * | 2016-05-31 | 2020-03-27 | 广东美的制冷设备有限公司 | Air conditioner fan blade rotating speed detection device and method |
| CN108613324A (en) * | 2017-01-25 | 2018-10-02 | 珠海格力电器股份有限公司 | Motor load mated condition detecting system, method and air conditioner |
| CN109489179B (en) * | 2018-11-21 | 2020-01-21 | 珠海格力电器股份有限公司 | Method and device for detecting air conditioner motor |
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