CN108999806B - Fan and method and device for adjusting wind speed of fan - Google Patents
Fan and method and device for adjusting wind speed of fan Download PDFInfo
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- CN108999806B CN108999806B CN201810869903.1A CN201810869903A CN108999806B CN 108999806 B CN108999806 B CN 108999806B CN 201810869903 A CN201810869903 A CN 201810869903A CN 108999806 B CN108999806 B CN 108999806B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
- F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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Abstract
The invention discloses a fan and a method and a device for adjusting the wind speed of the fan, wherein a variable electronic element is arranged in the fan and is linked with the fan, and the method for adjusting the wind speed of the fan comprises the following steps: obtaining the magnitude change information of the variable electronic element, wherein the magnitude change information is used for representing the rotation angle of the fan; and adjusting the output rotating speed of the fan according to the magnitude change information. By implementing the invention, the variable electronic element is used to rotate in association with the shaking head structure, different AD values are collected along with the change of the variable electronic element, the shaking head angle is judged according to the collected AD values, and the wind speed regulation at different angles is realized according to the shaking head angle, so that the fan cannot cause different air output due to the rotation angle, and the use feeling of a user is effectively improved.
Description
Technical Field
The invention relates to the technical field of household appliance control, in particular to a fan and a method and a device for adjusting the wind speed of the fan.
Background
The head shaking function is widely applied as one of the special functions of the fan, increases the air supply angle of fan products and brings convenience to users. At present, along with the improvement of user's quality of life, to air supply quality improvement day by day, along with the difference of the angle of shaking the head, can exert an influence to output wind speed to influence the amount of wind, the user can experience the difference of amount of wind size at the angle of difference, influences user experience.
Disclosure of Invention
In view of this, embodiments of the present invention provide a fan and a method and an apparatus for adjusting a wind speed thereof, so as to solve a problem that an existing fan cannot adjust an air supply amount according to different air supply angles.
According to a first aspect, an embodiment of the present invention provides a method for adjusting a wind speed of a fan, where a variable electronic component is disposed in the fan, and the variable electronic component is linked with the fan, and the method includes: acquiring the magnitude change information of the variable electronic element, wherein the magnitude change information is used for representing the rotation angle of the fan; and adjusting the output rotating speed of the fan according to the magnitude change information.
According to the method for adjusting the wind speed of the fan, the variable electronic element and the oscillating structure are used for rotating in a correlation mode, different AD values are collected along with the change of the variable electronic element, the oscillating angle is judged according to the collected AD values, the wind speed adjustment of different angles is achieved according to the oscillating angle, the fan is enabled not to be different in air supply amount due to the fact that the fan rotates, and the use feeling of a user is effectively improved.
With reference to the first aspect, in a first implementation manner of the first aspect, the rotation angle of the fan is searched according to a preset fan speed regulation data lookup table and the magnitude change information.
With reference to the first embodiment of the first aspect, in a second embodiment of the first aspect, the determining the output rotation speed of the fan according to the magnitude change information includes: searching a compensation value of a motor driving signal of the fan according to the preset fan speed regulation data comparison table and the magnitude change information; and driving a motor of the fan to increase or decrease the rotating speed according to the compensation value and the motor driving signal so as to adjust the output rotating speed of the fan.
With reference to the first aspect, in a third implementation manner of the first aspect, the adjusting the output rotation speed of the fan according to the magnitude change information includes: determining a compensation function of the motor driving signal of the fan and the magnitude change information according to the corresponding relation of the motor driving signal of the fan and the air volume of the fan, the corresponding relation of the air volume of the fan and the output rotating speed of the fan and the corresponding relation of the air volume of the fan and the magnitude change information; and driving a motor of the fan to increase or decrease the rotating speed according to the compensation function and the magnitude change information so as to adjust the output rotating speed of the fan.
With reference to the third implementation manner of the first aspect, in a fourth implementation manner of the first aspect, the compensation function of the motor driving signal of the fan and the magnitude change information is: z ═ X + b)/(d ·, where Z is a motor drive signal for the fan; x is the magnitude change information; a. b, d and e are constants.
According to a second aspect, an embodiment of the present invention provides an apparatus for adjusting a wind speed of a fan, the fan having a variable electronic component disposed therein, the variable electronic component being linked with the fan, the apparatus comprising: the variable value acquisition module is used for acquiring the magnitude change information of the variable electronic element, and the magnitude change information is used for representing the rotation angle of the fan; and the output rotating speed adjusting module is used for adjusting the output rotating speed of the fan according to the magnitude change information.
With reference to the second aspect, in the first embodiment of the second aspect, the rotation angle of the fan is searched according to a preset fan speed regulation data look-up table and the magnitude change information.
With reference to the first embodiment of the second aspect, in the second embodiment of the second aspect, the output rotation speed adjustment module includes: the driving compensation value determining submodule is used for searching a compensation value of a motor driving signal of the fan according to the preset fan speed regulation data comparison table and the magnitude change information; and the output rotating speed adjusting submodule is used for driving a motor of the fan to increase or decrease the rotating speed according to the compensation value and the motor driving signal so as to adjust the output rotating speed of the fan.
With reference to the second aspect, in a third embodiment of the second aspect, the output rotation speed adjustment module includes: the compensation function determining submodule is used for determining a compensation function of the motor driving signal of the fan and the magnitude change information according to the corresponding relation between the motor driving signal of the fan and the air volume of the fan, the corresponding relation between the air volume of the fan and the output rotating speed of the fan and the corresponding relation between the air volume of the fan and the magnitude change information; and the output rotating speed adjusting submodule is used for driving a motor of the fan to increase or decrease the rotating speed according to the compensation function and the magnitude change information so as to adjust the output rotating speed of the fan.
With reference to the third embodiment of the second aspect, in a fourth embodiment of the second aspect, the compensation function of the motor driving signal of the fan and the magnitude change information is as follows: z ═ X + b)/(d ·, where Z is a motor drive signal for the fan; x is the magnitude change information; a. b, d and e are constants.
According to a third aspect, an embodiment of the present invention provides a fan, including: the fan comprises a fan main body, a main control part, a motor part and a sampling part, wherein a variable electronic element is arranged in the sampling part, the variable electronic element is linked with the fan main body, and the rotating angle of the fan main body is represented by the quantity value change information of the variable electronic element; the main control unit executes the method for adjusting the fan speed according to the first aspect or any one of the embodiments of the first aspect, and controls the motor unit to adjust the output rotation speed of the fan body.
With reference to the third aspect, in the first embodiment of the third aspect, the fan main body and the variable electronic component are linked by coaxial rotation, gear transmission or belt transmission.
According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, which stores computer instructions for causing a computer to execute the method for adjusting the fan speed according to the first aspect or any one of the implementation manners of the first aspect.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:
FIG. 1 is a flow chart illustrating a method for adjusting a fan speed according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the rotation angle of a fan according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram illustrating a fan speed adjusting apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fan according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of the main control unit according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a method for adjusting the wind speed of a fan, wherein a variable electronic element is arranged in the fan and linked with the fan. As shown in fig. 1, the adjusting method mainly includes:
step S1: and acquiring the quantity variation information of the variable electronic element, wherein the quantity variation information is used for representing the rotation angle of the fan.
In the embodiment of the invention, the variable electronic element is linked with the fan mechanism, for example, the variable electronic element is linked with the fan through coaxial rotation, gear transmission, belt transmission and other modes, so that the change information of the variable electronic element is converted into the change of the AD value, and the change of the rotation angle of the fan is represented.
Alternatively, in some embodiments of the present invention, as shown in fig. 2, the relationship between the AD value and the fan rotation angle may be that the AD values of the two side limit angle positions are first defined, for example, the AD value of the N0 position is 0, the AD value of the N1 position is 1, the AD value implements a gradual change from 0 to 1, such as the AD value of the a area position is 0.1, the AD value of the B area position is 0.2, the AD value of the C area position is 0.3, and so on, the AD value changes with the fan shaking head in real time in the whole shaking head area, and each area position corresponds to a unique AD value, no matter it changes from N0 to N1, or from N1 to N0, the same area AD value is unique, and the angle of shaking head is determined by detecting the AD value.
It should be noted that the relationship between the AD value and the angle set above is only an example, and is not meant to limit the present invention.
Step S2: and adjusting the output rotating speed of the fan according to the value change information.
Optionally, in the embodiment of the present invention, the variable electronic component is taken as an example of an adjustable resistor, and the obtained magnitude change information is resistance change information of the adjustable resistor. The process of adjusting the output rotating speed of the fan according to the magnitude change information can mainly realize the adjustment of the output rotating speed of the fan according to the magnitude change information by two methods. One of which is a table lookup. In this embodiment, the table used in the table look-up method may be, for example, setting the right front at an angle of 0 °, and creating a fan speed control data look-up table as shown in table 1 in an interval of 5 °.
TABLE 1
| Angle of rotation | ..... | -15° | -10° | -5° | 0° | 5° | 10° | 15° | ....... |
| AD value | A1N | A13 | A12 | A11 | A | A01 | A02 | A03 | A0N |
| PWM | B+XN | B+X3 | B+X2 | B+X1 | B | B+X1 | B+X2 | B+X3 | B+XN |
In table 1, the AD value "A1N" is detected by the adjustable resistor, PWM is a motor driving signal, and "B" is a reference value of a standard PWM driving signal, when the angle moves and the air volume decreases, the PWM signal needs to be increased to increase the motor speed and enhance the air volume, X1, X2, and X3 … … XN are PWM signal compensation values, which can be obtained by actual tests, and then the angle, the AD value, and the PWM signal value are set to generate a fan speed regulation data comparison table, and according to the real-time detected AD value data, the corresponding PWM signal preset value is called to control the motor, and according to the compensation value, the rotation speed of the fan motor is increased or decreased, thereby realizing the adjustment of the output rotation speed of the fan according to the resistance value change information.
Specifically, referring to an example, in the above table 1, U/5V is AD/255, AD 51U is derived, an AD value at 0 ° is 127.5, a corresponding PWM value at this time is 0.8, and an AD value at each angle is derived assuming that 5 ° per rotation angle has the same AD value change amount (the actual change amount needs to be tested, and the following data is only used for description), as shown in the following table 2.
TABLE 2
| Angle of rotation | ..... | -15° | -10° | -5° | 0° | 5° | 10° | 15° | ....... |
| AD value | ...... | 120 | 122.5 | 125 | 127.5 | 130 | 132.5 | 135 | ...... |
| PWM | ...... | 0.83 | 0.82 | 0.81 | 0.8 | 0.81 | 0.82 | 0.83 | ...... |
Therefore, as the angle changes from 0 degrees, the PWM is synchronously increased, so that the fan motor is controlled to increase the air quantity.
The other method is a function method, and the step of adjusting the output rotating speed of the fan according to the resistance value change information through the function method mainly comprises the following steps:
determining a compensation function of the motor driving signal and the resistance value change information of the fan according to the corresponding relation between the motor driving signal of the fan and the air volume of the fan, the corresponding relation between the air volume of the fan and the output rotating speed of the fan and the corresponding relation between the air volume of the fan and the resistance value change information;
and driving a motor of the fan to increase or decrease the rotating speed according to the compensation function and the resistance value change information so as to adjust the output rotating speed of the fan.
Specifically, the parameter Y represents the air volume, X represents the AD value, Z represents the PWM driving signal, H represents the rotation speed, and a, b, c, and d are constants, and can be generated by fitting from the history data. The air volume is influenced and changed along with the change of the angle, two variables are approximated to a curve function according to a curve of the change of the actual tested air volume and the AD value, Y is a function X + b (function 1, namely the corresponding relation between the motor driving signal of the fan and the air volume of the fan), and the change rule of the air volume is simulated through the function. Meanwhile, under the condition of unchanging, the higher the rotating speed is, the larger the air volume is, the functional relationship exists, Y ═ d × H (function 2, which shows the corresponding relationship between the air volume of the fan and the output rotating speed of the fan), the functional relationship exists between the rotating speed and the PWM signal, when the PWM is larger, the rotating speed is also larger, H ═ e ═ Z (function 3, the corresponding relationship between the air volume of the fan and the resistance value change information) is obtained, the function 2 and the function 3 are substituted into the function 1, so that d ═ e ═ Z ═ a ═ X + b is obtained, Z ═ a + X + b)/(d ═ e is deduced, and thus a compensation function of the PWM signal (Z) and the AD value (X) is established, therefore, the motor of the fan can be driven to increase or decrease the rotating speed according to the compensation function and the resistance value change information, so as to adjust. It should be noted that the above functions are only examples, and the actual function type needs to be obtained according to actual test data. Including but not limited to the types of functions described above.
It should be noted that, in the embodiment of the present invention, in order to reduce the wear of the rotation of the adjustable resistor, the adjustable resistor of the brush contact structure (similar to the motor structure) may also be used. Divide into the region of difference with whole requirement scope, every region all has solitary structure to link to the main control portion, after the brush rotated to the current position along with fan revolution mechanic, the regional interface that corresponds switched on with the brush contact, and the main control portion judges the position of shaking the head according to the resistance change information of the adjustable resistance of this brush contact structure, finally realizes the process of the output speed of adjusting the fan according to the quantity change information.
In addition, in the above embodiment, the variable electronic component is taken as an example to explain, in practical applications, a device such as an adjustable capacitor may also be used as the variable electronic component, and the collected magnitude change information is a capacitance value of the adjustable capacitor, but the invention is not limited thereto.
According to the method for adjusting the wind speed of the fan, the variable electronic element and the oscillating structure are used for rotating in a correlation mode, different AD values are collected along with the change of the variable electronic element, the oscillating angle is judged according to the collected AD values, the wind speed adjustment of different angles is achieved according to the oscillating angle, the fan is enabled not to be different in air supply amount due to the fact that the fan rotates, and the use feeling of a user is effectively improved.
An embodiment of the present invention further provides a device for adjusting a wind speed of a fan, where the fan is provided with a variable electronic component, and the variable electronic component is linked with the fan, as shown in fig. 3, the device includes: the variable value acquisition module 1 is used for acquiring the value change information of the variable electronic element, and the value change information is used for representing the rotation angle of the fan; for details, reference may be made to the description of step S1 of the above method embodiment.
The output rotating speed adjusting module 2 is used for adjusting the output rotating speed of the fan according to the value change information; for details, reference may be made to the description of step S2 of the above method embodiment.
Alternatively, in some embodiments of the present invention, when the output rotation speed of the fan is adjusted according to the magnitude change information by a table lookup method, the output rotation speed adjustment module 2 includes: the drive compensation value determining submodule is used for searching a compensation value of a motor drive signal of the fan according to a preset fan speed regulation data comparison table and the magnitude change information; and the output rotating speed adjusting submodule is used for driving a motor of the fan to increase or decrease the rotating speed according to the compensation value and the motor driving signal so as to adjust the output rotating speed of the fan.
Alternatively, in some embodiments of the present invention, when the output rotation speed of the fan is adjusted according to the magnitude change information by the functional method, the output rotation speed adjustment module 2 includes: the compensation function determining submodule is used for determining a compensation function of the motor driving signal and the magnitude change information of the fan according to the corresponding relation between the motor driving signal of the fan and the air volume of the fan, the corresponding relation between the air volume of the fan and the output rotating speed of the fan and the corresponding relation between the air volume of the fan and the magnitude change information; and the output rotating speed adjusting submodule is used for driving a motor of the fan to increase or decrease the rotating speed according to the compensation function and the magnitude change information so as to adjust the output rotating speed of the fan.
According to the fan wind speed adjusting device provided by the embodiment of the invention, the variable electronic element is used for rotating in association with the oscillating structure, different AD values are collected along with the change of the variable electronic element, the oscillating angle is judged according to the collected AD values, and the wind speed adjustment at different angles is realized according to the oscillating angle, so that the fan cannot cause different air supply amounts due to the rotation angle, and the use feeling of a user is effectively improved.
As shown in fig. 4, the fan may include a fan main body 10, a main control unit 20, a motor unit 30, and a sampling unit 40, wherein a variable electronic component is disposed in the sampling unit 40, the variable electronic component is linked with the fan main body 10, and a rotation angle of the fan main body 10 is represented by a value variation information of the variable electronic component. Specifically, the linking manner between the fan body 10 and the variable electronic component is coaxial rotation, gear transmission, belt transmission, or the like, which is not limited to this.
As shown in fig. 5, the main control unit 20 may include a processor 201 and a memory 202, wherein the processor 201 and the memory 202 may be connected by a bus or by other means, and fig. 4 illustrates the connection by the bus as an example.
The processor 201 may be a Central Processing Unit (CPU). The Processor 201 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof.
The memory 202, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules (e.g., the variation value acquisition module 1 and the output rotation speed adjustment module 2 shown in fig. 3) corresponding to the fan speed adjustment method in the embodiment of the present invention. The processor 201 executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions and modules stored in the memory 202, that is, implements the method for adjusting the fan speed in the above method embodiment, so as to control the motor portion 30 to adjust the output rotation speed of the fan body 10.
The memory 202 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 201, and the like. Further, the memory 202 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 202 may optionally include memory located remotely from the processor 201, which may be connected to the processor 201 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 202 and when executed by the processor 201 perform the method of adjusting the fan speed in the embodiment shown in fig. 1-3.
The details of the fan may be understood by referring to the corresponding descriptions and effects in the embodiments shown in fig. 1 to fig. 3, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A method for adjusting the wind speed of a fan, wherein a variable electronic element is arranged in the fan and is linked with the fan, the method comprising:
acquiring the magnitude change information of the variable electronic element, wherein the magnitude change information is used for representing the rotation angle of the fan;
adjusting the output rotating speed of the fan according to the magnitude change information;
wherein adjusting the output speed of the fan according to the magnitude change information comprises:
determining a compensation function of the motor driving signal of the fan and the magnitude change information according to the corresponding relation of the motor driving signal of the fan and the air volume of the fan, the corresponding relation of the air volume of the fan and the output rotating speed of the fan and the corresponding relation of the air volume of the fan and the magnitude change information; the compensation function of the motor drive signal of the fan and the magnitude change information is:
Z＝(a*X+b)/(d*e)，
wherein Z is a motor drive signal of the fan; x is the magnitude change information; a. b, d and e are constants;
and driving a motor of the fan to increase or decrease the rotating speed according to the compensation function and the magnitude change information so as to adjust the output rotating speed of the fan.
2. The method as claimed in claim 1, wherein the fan rotation angle is looked up according to a preset fan speed-adjusting data look-up table and the magnitude variation information.
3. The method of claim 2, wherein the step of adjusting the fan speed according to the magnitude change information comprises:
searching a compensation value of a motor driving signal of the fan according to the preset fan speed regulation data comparison table and the magnitude change information;
and driving a motor of the fan to increase or decrease the rotating speed according to the compensation value and the motor driving signal so as to adjust the output rotating speed of the fan.
4. An adjusting device for fan speed, characterized in that, be provided with variable electronic component in the fan, variable electronic component links with the fan, adjusting device includes:
the variable value acquisition module is used for acquiring the magnitude change information of the variable electronic element, and the magnitude change information is used for representing the rotation angle of the fan;
the output rotating speed adjusting module is used for adjusting the output rotating speed of the fan according to the magnitude change information;
wherein the output speed adjustment module comprises:
the compensation function determining submodule is used for determining a compensation function of the motor driving signal of the fan and the magnitude change information according to the corresponding relation between the motor driving signal of the fan and the air volume of the fan, the corresponding relation between the air volume of the fan and the output rotating speed of the fan and the corresponding relation between the air volume of the fan and the magnitude change information; the compensation function of the motor drive signal of the fan and the magnitude change information is:
Z＝(a*X+b)/(d*e)，
wherein Z is a motor drive signal of the fan; x is the magnitude change information; a. b, d and e are constants;
and the output rotating speed adjusting submodule is used for driving a motor of the fan to increase or decrease the rotating speed according to the compensation function and the magnitude change information so as to adjust the output rotating speed of the fan.
5. The device for adjusting the wind speed of a fan according to claim 4, wherein the rotation angle of the fan is searched according to a preset fan speed regulation data look-up table and the magnitude change information.
6. The apparatus of claim 5, wherein the output speed adjusting module comprises:
the driving compensation value determining submodule is used for searching a compensation value of a motor driving signal of the fan according to the preset fan speed regulation data comparison table and the magnitude change information;
and the output rotating speed adjusting submodule is used for driving a motor of the fan to increase or decrease the rotating speed according to the compensation value and the motor driving signal so as to adjust the output rotating speed of the fan.
7. A fan, comprising: a fan main body, a main control part, a motor part and a sampling part,
the sampling part is provided with a variable electronic element which is linked with the fan main body, and the rotating angle of the fan main body is represented by the quantity value change information of the variable electronic element;
the main control part executes the method for adjusting the wind speed of the fan according to any one of claims 1 to 3, and controls the motor part to adjust the output rotating speed of the fan body.
8. The fan as claimed in claim 7, wherein the fan body and the variable electronic component are linked by a coaxial rotation, a gear transmission or a belt transmission.
9. A computer-readable storage medium storing computer instructions for causing a computer to execute the method of adjusting a fan speed according to any one of claims 1 to 3.
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| CN108005935A (en) * | 2016-11-01 | 2018-05-08 | 广东华美骏达电器有限公司 | The air quantity control method and system of a kind of direct current brushless motor |
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| CN105370606A (en) * | 2014-08-25 | 2016-03-02 | 珠海格力电器股份有限公司 | Intelligent electric fan and control method thereof |
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