CN108019894B - Method and device for automatically cleaning fan impeller of air conditioner - Google Patents
Method and device for automatically cleaning fan impeller of air conditioner Download PDFInfo
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- CN108019894B CN108019894B CN201711183208.1A CN201711183208A CN108019894B CN 108019894 B CN108019894 B CN 108019894B CN 201711183208 A CN201711183208 A CN 201711183208A CN 108019894 B CN108019894 B CN 108019894B
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Abstract
The invention discloses a method and a device for automatically cleaning an air conditioner fan impeller. The method comprises the steps that the running time of a fan is monitored through an air conditioner master controller, and different fan impeller cleaning instructions are sent according to different running times of the fan; the motor driver receives a fan impeller cleaning instruction sent by the air conditioner master control controller, and controls the fan impeller to swing back and forth within a certain angle, so that the aim of cleaning dust of the fan impeller is fulfilled; meanwhile, dust on the fan impeller is cleaned, so that the influence of an air conditioner on the environmental quality can be effectively reduced; when the air conditioner is maintained, the fan impeller can be cleaned without being disassembled by manpower, and the maintenance cost of the air conditioner can be effectively saved.
Description
Technical Field
The invention relates to the field of household appliances, in particular to a method and a device for automatically cleaning an air conditioner fan impeller.
Background
Air conditioners (Air conditioners) are Air conditioners. The method is a process for regulating and controlling parameters such as temperature, humidity, cleanliness, speed and the like of ambient air in a building/structure by manual means.
Generally comprises a cold source/heat source device, a cold and hot medium delivery and distribution system, a terminal device and other auxiliary devices. Mainly comprises a water pump, a fan and a pipeline system. The end device is responsible for specifically processing air and temperature by using the cold and heat from transmission and distribution so as to enable the air parameters of the target environment to meet the requirements.
Because the air conditioner fan always rotates in a certain direction, a large amount of dust can be accumulated on the fan impeller along with the continuous accumulation of the operation time, so that harmful bacteria are easy to breed, and the environment quality is further influenced; at present, if dust of an air conditioner fan impeller needs to be removed, the fan impeller needs to be detached and cleaned, but the detaching and reinstalling processes are very complex, so that the cleaning mode is difficult to widely use.
Therefore, there is a need for a method and apparatus for automatically cleaning dust on an air conditioner fan impeller, which can reduce dust on the fan impeller and provide environmental quality assurance.
Disclosure of Invention
The invention aims to provide a method and a device for automatically cleaning an air conditioner fan impeller, aiming at the defects in the prior art.
The invention adopts the technical scheme that a method for automatically cleaning an air conditioner fan impeller is designed, and the method comprises the following steps:
the air conditioner main control controller detects the running state of the fan and the running accumulated time of the fan and sends a fan impeller cleaning instruction according to the detection result;
and the motor driver receives a fan impeller cleaning instruction sent by the air conditioner master control controller, and controls the motor to rotate forwards and backwards to drive the fan impeller to shake.
Preferably, the air conditioner master controller executes the following steps:
step 11, after the air conditioner master controller is powered on and initialized, judging whether the fan runs, if so, accumulating the running time of the fan, turning to step 12, and if not, repeating the step 11;
step 12, the air conditioner master controller judges whether the fan operation accumulated time exceeds a threshold value T1, if so, the fan impeller cleaning instruction is effective, the fan impeller cleaning instruction is sent to the motor driver, meanwhile, the fan operation accumulated time is cleared, the step 13 is switched to, and if not, the step 12 is repeated;
and step 13, after the motor driver receives a fan impeller cleaning instruction, controlling the motor to perform cleaning operation, and feeding back information to the air conditioner main control controller after the cleaning task is completed.
Preferably, the motor driver performs the steps of:
step 21, after the motor driver is powered on and initialized, the motor driver judges whether an instruction for cleaning the fan impeller is received, if so, the fan impeller cleaning operation is started, the cleaning operation time is accumulated, the step 22 is switched to, and if not, the step 21 is repeated;
step 22, judging whether the accumulated time of the impeller cleaning operation exceeds a threshold value T3, if so, clearing a fan impeller cleaning instruction, clearing the accumulated cleaning operation time, and simultaneously returning to the step 21; if not, go to step 23;
step 23, controlling the fan impeller to rotate reversely;
step 24, judging whether the fan impeller reversal time exceeds a threshold value T2, if so, entering step 25, and if not, continuing to control the fan impeller to reverse;
step 25, controlling the fan impeller to rotate positively;
step 26, judging whether the forward rotation time of the fan impeller exceeds a threshold value T4, if so, entering step 27, and if not, continuing to control the fan impeller to rotate forwardly;
and 27, performing accumulated calculation on the cleaning operation time of the fan impeller, returning to the step 22 after the calculation is finished, and repeating the operation.
Preferably, the steps 23, 24, 25 and 26 are implemented as follows:
step 23, controlling a motor driving module to generate a stator flux vector with an angle alpha according to a motor control algorithm module;
step 24, judging whether the stator magnetic flux vector excitation time with the angle alpha exceeds a threshold value T2, if so, entering the step 25; if not, continuing to generate a stator magnetic flux vector with the angle alpha;
step 25, controlling a motor driving module to generate a stator flux vector with an angle beta according to a motor control algorithm module;
step 26, judging whether the stator magnetic flux vector excitation time with the angle beta exceeds a threshold value T4, if so, entering step 27; if not, the stator magnetic flux vector with the angle beta is continuously generated.
Preferably, α is 0 ° and β is 90 °.
Preferably, the T1 is 1-7 days, the T2 is 50-500 ms, the T3 is 5-10 s, and the T4 is 50-500 ms.
The invention also provides a device for automatically cleaning the impeller of the air conditioner fan, which comprises:
the air conditioner master controller is used for detecting whether the fan operates and the accumulated time of the fan operation and sending out a fan impeller cleaning instruction according to the detection result;
and the motor driver is used for receiving a fan impeller cleaning instruction sent by the air conditioner master control controller, controlling the motor to rotate forwards and backwards and driving the fan impeller to shake.
Preferably, the air conditioner master controller includes:
the main control function module is connected with the air conditioner fan and used for monitoring whether the fan operates and the operation time of the fan and sending a corresponding fan impeller cleaning instruction based on the operation time;
and the first serial port communication module is connected with the main control function module and used for receiving a fan impeller cleaning instruction sent by the main control function module and sending the fan impeller cleaning instruction to the motor driver.
Preferably, the motor driver includes:
the second serial port communication module is connected with the first serial port communication module and used for receiving the instruction sent by the first serial port communication module;
the motor control algorithm module is connected with the second serial port communication module and used for receiving the instruction sent by the second serial port communication module and analyzing and calculating the instruction; and
and the motor driving module is connected with the motor control algorithm module, generates stator magnetic flux vectors of corresponding angles through the command of the motor control algorithm module, and controls the motor to swing back and forth in the corresponding angles.
Preferably, the stator flux vectors generated by the motor drive module are a 0 ° stator flux vector and a 90 ° stator flux vector, respectively.
Compared with the prior art, the invention has at least the following beneficial effects: the invention enables the impeller of the air-conditioning fan to automatically swing back and forth within a certain angle, thereby realizing the purpose of cleaning dust; meanwhile, dust on the fan impeller is cleaned, so that the influence of an air conditioner on the environmental quality can be effectively reduced; when the air conditioner is maintained, the fan impeller can be cleaned without being disassembled by manpower, and the maintenance cost of the air conditioner can be effectively saved.
Drawings
Fig. 1 is a flow chart of a fan impeller cleaning instruction control of the air conditioner master controller according to the present invention.
Fig. 2 is a flow chart of the fan impeller cleaning control of the motor drive of the present invention.
Fig. 3 is a schematic diagram of the structure and the magnetic flux vector of the motor of the invention.
Fig. 4 is a schematic structural diagram of an air conditioner fan according to the present invention.
Fig. 5 is a schematic diagram of a hardware system for realizing self-cleaning of an air conditioner fan impeller.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1 and fig. 2, the present invention provides a method for automatically cleaning an air conditioner fan impeller, wherein the method comprises:
the air conditioner main control controller detects the running state of the fan and the running accumulated time of the fan and sends a fan impeller cleaning instruction according to the detection result;
and the motor driver receives a fan impeller cleaning instruction sent by the air conditioner master control controller, and controls the motor to rotate forwards and backwards to drive the fan impeller to shake.
Specifically, the air conditioner fan of the invention is composed of the motor 6, the fan impeller 7 and the connecting component, and the motor 6 can rotate in the forward direction and the reverse direction by changing the power-on sequence of the winding of the motor 6, so that the fan impeller 7 of the air conditioner can also have the characteristics of forward rotation, directional rotation and the like. Since the air conditioner fan normally operates, the fan impeller 7 always rotates in the forward direction, and dust accumulates as the operation time is accumulated. The fan impeller 7 is controlled to rotate forwards and backwards quickly to achieve the shaking effect of the fan impeller 7, and therefore the purpose of self-cleaning of the fan impeller 7 is achieved.
Preferably, the air conditioner master controller executes the following steps:
11, step 11, after the air conditioner main control controller is electrified and initialized, judging whether the fan runs, if so, accumulating the running time of the fan, turning to step 12, and if not, repeating the step 11;
step 12, the air conditioner master controller judges whether the fan operation accumulated time exceeds a threshold value T1, if so, the fan impeller cleaning instruction is effective, the fan impeller cleaning instruction is sent to the motor driver, meanwhile, the fan operation accumulated time is cleared, the step 13 is switched to, and if not, the step 12 is repeated;
and step 13, after the motor driver receives a fan impeller cleaning instruction, controlling the motor to perform cleaning operation, and feeding back information to the air conditioner main control controller after the cleaning task is completed.
Specifically, after the air conditioner main control controller is powered on and initialized, whether the fan runs or not is judged, if the fan runs, the running time is accumulated, if the fan does not run, the fan impeller cleaning instruction is invalid, the invalid instruction is sent to the first serial port communication module, the instruction is sent to the motor driver through the first serial port module, and meanwhile, whether the fan runs or not is continuously judged; and then judging whether the accumulated running time exceeds a set threshold value, if so, enabling a fan impeller self-cleaning instruction to be effective and resetting the accumulated running time of the fan, and sending the accumulated running time to the motor driver through the first serial port communication module, and if not, enabling the fan impeller self-cleaning instruction to be ineffective and sending the accumulated running time to the motor driver through the first serial port communication module.
For example, if the accumulated fan operation time is T1 and is less than the threshold T1, the air conditioner main control controller sends an invalid cleaning command to the first serial port communication module, the first serial port communication module feeds back information to the air conditioner main control controller, the air conditioner main control controller continues accumulation on the basis of the operation time T1, and when T1 is greater than or equal to T1, the air conditioner main control controller sends a valid cleaning command to the first serial port communication module, and the first serial port communication module sends the signal to the motor driver. Meanwhile, the accumulated running time t1 needs to be cleared, and the accumulation of the running time of the fan is carried out again.
Preferably, the motor driver performs the steps of:
step 21, after the motor driver is powered on and initialized, the motor driver judges whether an instruction for cleaning the fan impeller is received, if so, the fan impeller cleaning operation is started, the cleaning operation time is accumulated, the step 22 is switched to, and if not, the step 21 is repeated;
step 22, judging whether the accumulated time of the impeller cleaning operation exceeds a threshold value T3, if so, clearing a fan impeller cleaning instruction, clearing the accumulated cleaning operation time, and simultaneously returning to the step 21; if not, go to step 23;
step 23, controlling the fan impeller to rotate reversely;
step 24, judging whether the fan impeller reversal time exceeds a threshold value T2, if so, entering step 25, and if not, continuing to control the fan impeller to reverse;
step 25, controlling the fan impeller to rotate positively;
step 26, judging whether the forward rotation time of the fan impeller exceeds a threshold value T4, if so, entering step 27, and if not, continuing to control the fan impeller to rotate forwardly;
and 27, performing accumulated calculation on the cleaning operation time of the fan impeller, returning to the step 22 after the calculation is finished, and repeating the operation.
Preferably, the steps 23, 24, 25 and 26 are implemented as follows:
step 23, controlling a motor driving module to generate a stator flux vector with an angle alpha according to a motor control algorithm module;
step 24, judging whether the stator magnetic flux vector excitation time with the angle alpha exceeds a threshold value T2, if so, entering the step 25; if not, continuing to generate a stator magnetic flux vector with the angle alpha;
step 25, controlling a motor driving module to generate a stator flux vector with an angle beta according to a motor control algorithm module;
step 26, judging whether the stator magnetic flux vector excitation time with the angle beta exceeds a threshold value T4, if so, entering step 27; if not, the stator magnetic flux vector with the angle beta is continuously generated.
As shown in fig. 3, α is 0 ° and β is 90 °.
Specifically, the motor 6 is composed of a three-phase stator winding 1 and a rotor 2, a magnetic flux vector with a certain direction can be generated by introducing current changing according to a sine rule into the three-phase stator winding 1, the magnetic flux vector and a rotor magnetic flux vector 5 interact to generate electromagnetic torque for rotating the motor 6, and in the invention, a stator magnetic flux vector 3 with 0 degree and a stator magnetic flux vector 4 with 90 degrees of the stator winding 1 are generated by fast circulating switching, so that the motor 6 rapidly rotates back and forth between 0 degree and 90 degrees, and the shaking effect of the fan impeller 7 can be realized.
After the motor driver is electrified and initialized, the second serial communication module receives data sent by the master controller, judges whether a self-cleaning instruction of the fan impeller is received or not, returns to the judgment again if the self-cleaning instruction is not received, judges whether the self-cleaning operation accumulated time of the fan impeller 7 exceeds a set threshold value or not if the self-cleaning operation accumulated time of the fan impeller 7 exceeds the threshold value, clears the self-cleaning instruction of the fan impeller and clears the self-cleaning operation accumulated time of the fan impeller 7 if the self-cleaning operation accumulated time exceeds the threshold value, controls the motor 6 to drive the module to generate a 0-degree stator flux vector 3 if the self-cleaning operation accumulated time of the fan impeller is not exceeded, judges whether the excitation maintaining time exceeds a preset time threshold value or not, continuously generates the 0-degree stator flux vector 3 if the self-cleaning operation accumulated time of the fan impeller 7 does not exceed the threshold value, so that the stator flux, the motor 6 control algorithm module controls the motor 6 driving module to generate a 90-degree stator magnetic flux vector 4, whether excitation maintaining time exceeds a preset time threshold is judged, if the excitation maintaining time does not exceed the preset time threshold, the 90-degree stator magnetic flux vector 4 is continuously generated, so that electromagnetic torque is generated through interaction of stator magnetic flux and rotor 2 magnetic flux, the rotor 2 is rotated to be consistent with the 90-degree stator magnetic flux vector 4, if the excitation time exceeds the preset threshold, self-cleaning operation time of the fan impeller 7 is accumulated, then self-cleaning operation time of the fan impeller 7 is returned to be judged whether the self-cleaning operation time exceeds the threshold, and finally the control flow is repeatedly executed. The excitation time of the generated stator magnetic flux vector is set reasonably, so that the rotor 2 of the motor 6 can rotate back and forth rapidly between 0 and 90 degrees, the shaking effect of the fan impeller 7 can be achieved, and the fan impeller 7 is self-cleaned.
It should be noted that 0 to 90 ° is a preferable numerical range of the embodiment, and is not limited to 0 to 90 °, and may be 0 to 120 ° or 0 to 150 °.
Preferably, the T1 is 1-7 days, the T2 is 50-500 ms, the T3 is 5-10 s, and the T4 is 50-500 ms.
Specifically, T1 may be any value from 1 day to 7 days, and may be set according to different environments. For example, when the dust of the use environment is large, the time T1 may be set to be short, such as about 1 to 3 days, and when the dust of the use environment is small, the time T1 may be set to be long, such as 4 to 7 days; the time T2 and the time T4 can be any value from 50ms to 500ms, the value can be set according to the size of environmental dust, the dust is large, the set value can be close to the minimum value, the dust is small, and the set value can be close to the maximum value; t3 can be any numerical value in 5s ~10s, and equally, the big environment of dust can set up a great numerical value, carries out the cleanness of longer time to the dust, reaches clean thorough purpose, and the little environment of dust can set up a less numerical value, carries out the cleanness of short time to the dust, can reach clear purpose, avoids extravagant electric power resource.
As shown in fig. 4 and 5, the present invention also provides an apparatus for automatically cleaning an air conditioner fan impeller, which includes:
the air conditioner master controller is used for detecting whether the fan operates and the accumulated operation time of the fan, and sending a fan impeller cleaning instruction according to whether the fan operates and the accumulated operation time of the fan;
the motor driver is connected with the air conditioner main control controller and used for receiving a fan impeller cleaning instruction sent by the air conditioner main control controller and controlling the motor 6 driving module to generate a stator magnetic flux vector at a corresponding angle through the corresponding fan impeller cleaning instruction; and
and the motor 6 is connected with the motor driver and rotates according to the instruction of the motor driver to control the fan impeller 7 to swing back and forth within a certain angle, so that the aim of cleaning dust of the fan impeller 7 is fulfilled.
Preferably, the air conditioner master controller includes:
the main control function module is connected with the air conditioner fan and used for monitoring whether the fan operates and the operation time of the fan and sending a corresponding fan impeller cleaning instruction based on the operation time;
and the first serial port communication module is connected with the main control function module and used for receiving a fan impeller cleaning instruction sent by the main control function module and sending the fan impeller cleaning instruction to the motor driver.
Preferably, the motor driver includes:
the second serial port communication module is connected with the first serial port communication module and used for receiving the instruction sent by the first serial port communication module;
the motor control algorithm module is connected with the second serial port communication module and used for receiving the instruction sent by the second serial port communication module and analyzing and calculating the instruction; and
and the motor 6 driving module is connected with the motor control algorithm module, and controls the motor 6 to swing back and forth in a corresponding angle by generating a stator magnetic flux vector at a corresponding angle through an instruction of the motor control algorithm module.
Specifically, the hardware system for realizing self-cleaning of the fan impeller 7 of the air conditioner is composed of an air conditioner main control controller and a motor driver, wherein the main control controller is responsible for judging the effectiveness of a fan impeller self-cleaning instruction, and the motor driver is responsible for controlling the fan impeller 7 to rotate in the forward direction and the reverse direction rapidly and the like.
In conclusion, the impeller 7 of the air conditioner fan can automatically swing back and forth within a certain angle, so that the aim of cleaning dust is fulfilled; meanwhile, dust on the fan impeller 7 is cleaned, so that the influence of an air conditioner on the environmental quality can be effectively reduced; when the air conditioner is maintained, the fan impeller 7 can be cleaned without being disassembled by manpower, and the maintenance cost of the air conditioner can be effectively saved.
The above examples are intended only to illustrate specific embodiments of the present invention. It should be noted that, for a person skilled in the art, several modifications and variations can be made without departing from the inventive concept, and these modifications and variations shall fall within the protective scope of the present invention.
Claims (9)
1. A method for automatically cleaning an air conditioner fan impeller is characterized by comprising the following steps:
the air conditioner main control controller detects the running state of the fan and the running accumulated time of the fan and sends a fan impeller cleaning instruction according to the detection result;
the motor driver receives a fan impeller cleaning instruction sent by the air conditioner master control controller, controls the motor to rotate in a forward direction and a reverse direction rapidly to drive the fan impeller to shake,
the motor driver performs the steps of:
step 21, after the motor driver is powered on and initialized, the motor driver judges whether an instruction for cleaning the fan impeller is received, if so, the fan impeller cleaning operation is started, the cleaning operation time is accumulated, the step 22 is switched to, and if not, the step 21 is repeated;
step 22, judging whether the accumulated time of the impeller cleaning operation exceeds a threshold value T3, if so, clearing a fan impeller cleaning instruction, clearing the accumulated cleaning operation time, and simultaneously returning to the step 21; if not, go to step 23;
step 23, controlling the fan impeller to rotate reversely;
step 24, judging whether the fan impeller reversal time exceeds a threshold value T2, if so, entering step 25, and if not, continuing to control the fan impeller to reverse;
step 25, controlling the fan impeller to rotate positively;
step 26, judging whether the forward rotation time of the fan impeller exceeds a threshold value T4, if so, entering step 27, and if not, continuing to control the fan impeller to rotate forwardly;
and 27, performing accumulated calculation on the cleaning operation time of the fan impeller, returning to the step 22 after the calculation is finished, and repeating the operation.
2. The method for automatically cleaning the fan impeller of the air conditioner as claimed in claim 1, wherein the air conditioner main control controller performs the following steps:
step 11, after the air conditioner master controller is powered on and initialized, judging whether the fan runs, if so, accumulating the running time of the fan, turning to step 12, and if not, repeating the step 11;
step 12, the air conditioner master controller judges whether the fan operation accumulated time exceeds a threshold value T1, if so, the fan impeller cleaning instruction is effective, the fan impeller cleaning instruction is sent to the motor driver, meanwhile, the fan operation accumulated time is cleared, the step 13 is switched to, and if not, the step 12 is repeated;
and step 13, after the motor driver receives a fan impeller cleaning instruction, controlling the motor to perform cleaning operation, and feeding back information to the air conditioner main control controller after the cleaning task is completed.
3. The method for automatically cleaning the impeller of the air conditioner fan as claimed in claim 2, wherein the steps 23, 24, 25 and 26 are implemented as follows:
step 23, controlling a motor driving module to generate a stator flux vector with an angle alpha according to a motor control algorithm module;
step 24, judging whether the stator magnetic flux vector excitation time with the angle alpha exceeds a threshold value T2, if so, entering the step 25; if not, continuing to generate a stator magnetic flux vector with the angle alpha;
step 25, controlling a motor driving module to generate a stator flux vector with an angle beta according to a motor control algorithm module;
step 26, judging whether the stator magnetic flux vector excitation time with the angle beta exceeds a threshold value T4, if so, entering step 27; if not, the stator magnetic flux vector with the angle beta is continuously generated.
4. A method of automatically cleaning an air conditioner fan impeller according to claim 3, wherein α is 0 ° and β is 90 °.
5. The method for automatically cleaning an air conditioner fan impeller according to claim 4, wherein the T1 is 1-7 days, the T2 is 50-500 ms, the T3 is 5-10 s, and the T4 is 50-500 ms.
6. An air conditioner fan impeller self-cleaning's device which characterized in that, the device includes:
the air conditioner master controller is used for detecting whether the fan operates and the accumulated time of the fan operation and sending out a fan impeller cleaning instruction according to the detection result;
the motor driver is used for receiving a fan impeller cleaning instruction sent by the air conditioner master control controller, controlling the motor to rotate forwards and backwards to drive the fan impeller to shake,
the motor driver performs the steps of:
step 21, after the motor driver is powered on and initialized, the motor driver judges whether an instruction for cleaning the fan impeller is received, if so, the fan impeller cleaning operation is started, the cleaning operation time is accumulated, the step 22 is switched to, and if not, the step 21 is repeated;
step 22, judging whether the accumulated time of the impeller cleaning operation exceeds a threshold value T3, if so, clearing a fan impeller cleaning instruction, clearing the accumulated cleaning operation time, and simultaneously returning to the step 21; if not, go to step 23;
step 23, controlling the fan impeller to rotate reversely;
step 24, judging whether the fan impeller reversal time exceeds a threshold value T2, if so, entering step 25, and if not, continuing to control the fan impeller to reverse;
step 25, controlling the fan impeller to rotate positively;
step 26, judging whether the forward rotation time of the fan impeller exceeds a threshold value T4, if so, entering step 27, and if not, continuing to control the fan impeller to rotate forwardly;
and 27, performing accumulated calculation on the cleaning operation time of the fan impeller, returning to the step 22 after the calculation is finished, and repeating the operation.
7. The device for automatically cleaning the fan impeller of the air conditioner as claimed in claim 6, wherein the air conditioner main control unit comprises:
the main control function module is connected with the air conditioner fan and used for monitoring whether the fan operates and the operation time of the fan and sending a corresponding fan impeller cleaning instruction based on the operation time;
and the first serial port communication module is connected with the main control function module and used for receiving a fan impeller cleaning instruction sent by the main control function module and sending the fan impeller cleaning instruction to the motor driver.
8. An apparatus for automatically cleaning a fan impeller of an air conditioner in accordance with claim 7, wherein said motor driver comprises:
the second serial port communication module is connected with the first serial port communication module and used for receiving the instruction sent by the first serial port communication module;
the motor control algorithm module is connected with the second serial port communication module and used for receiving the instruction sent by the second serial port communication module and analyzing and calculating the instruction; and
and the motor driving module is connected with the motor control algorithm module, generates stator magnetic flux vectors of corresponding angles through the command of the motor control algorithm module, and controls the motor to swing back and forth in the corresponding angles.
9. An apparatus for automatically cleaning an air conditioner fan impeller according to claim 8, wherein the stator flux vectors generated by the motor drive module are 0 ° stator flux vectors and 90 ° stator flux vectors, respectively.
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| CN201711183208.1A CN108019894B (en) | 2017-11-23 | 2017-11-23 | Method and device for automatically cleaning fan impeller of air conditioner |
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| CN108692430A (en) * | 2018-06-08 | 2018-10-23 | 广东美的制冷设备有限公司 | Wash control method, air conditioner and the computer readable storage medium of air conditioner |
| CN109140743A (en) * | 2018-08-06 | 2019-01-04 | 广州市花林景观工程有限公司 | Flabellum self-cleaning system in a kind of air-conditioning |
| CN111457533A (en) * | 2018-11-16 | 2020-07-28 | 杭州曼京科技有限公司 | Box ventilation unit of building factory building |
| CN111457534A (en) * | 2018-11-16 | 2020-07-28 | 杭州曼京科技有限公司 | Ventilation device for building factory building |
| CN114076385B (en) * | 2020-08-10 | 2023-12-26 | 海信空调有限公司 | Air conditioner and automatic cleaning method for air conditioner outdoor unit |
| CN113091197A (en) * | 2021-03-04 | 2021-07-09 | 珠海格力电器股份有限公司 | Automatic dust removal method for air conditioner outdoor unit and air conditioner |
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| CN108019894A (en) | 2018-05-11 |
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