CN108283460A - A kind of dust exhaust apparatus - Google Patents
A kind of dust exhaust apparatus Download PDFInfo
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- CN108283460A CN108283460A CN201710012857.9A CN201710012857A CN108283460A CN 108283460 A CN108283460 A CN 108283460A CN 201710012857 A CN201710012857 A CN 201710012857A CN 108283460 A CN108283460 A CN 108283460A
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- exhaust apparatus
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/202—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by an electric motor
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0072—Mechanical means for controlling the suction or for effecting pulsating action
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
The invention discloses a kind of dust exhaust apparatus, solve the problems, such as that the inhalant effect difference of dust exhaust apparatus in the prior art and power consumption are big, the dust exhaust apparatus is worked using following steps to control induced-draught electric motor, step 1：Data initialization；Step 2：When rubbish perceptron perceives rubbish, start to calculate pulse number M, pwm value R and pulse width variations value Δ R；Step 3：The pulse number M of record this moment, control circuit are preset with the first pulse threshold M1, the second pulse threshold M2 and pulse width variations threshold value S, wherein M1 when timing reaches preset time T<M2, if pulse number value M≤M1, and when pulse width variations value Δ R≤S, return to step one；If M1<M≤M2, pulse width variations value Δ R>S and pwm value R change hours, return to step one；If pulse number value M≤M1, pulse width variations value Δ R>S and pwm value R become hour, and the PWM value of control circuit output becomes smaller, and induced-draught electric motor rotating speed reduces；Otherwise, the PWM value of control circuit output becomes larger, and induced-draught electric motor rotating speed improves.
Description
Technical field
The present invention relates to household electrical appliance technical field, especially a kind of dust exhaust apparatus.
Background technology
It is rotated using motor band movable vane piece when dust exhaust apparatus is main, dust is drawn in closed shell generation air negative pressure,
Since rubbish type and size have differences, it frequently can lead to larger rubbish and be only judged as monolithic entity, no matter receive any form
Rubbish motor and round brush rotating speed it is constant, cause larger rubbish not suck normally since suction remains unchanged, at the same
When sucking smaller and intensive dust, the waste of electric energy is easily led to.
To solve the above problems, the prior art provides, one kind is infrared to use dust catcher, including controls what motor ran well
Circuit for controlling motor, as the microcontroller of control centre, display alarm and the display module of control and key-press module, for connecing
It receives the infrared receiving module of infrared signal and for emitting the infrared transmission module of infrared signal, said program in dust by inhaling
Infrared emission and infrared receiving device is arranged in inlet, and microcontroller is according to the time that is blocked of infrared ray come the big of judgment object
It is small and how much dust, Intelligent treatment is then carried out by algorithm, keeps the dust catcher more convenient to use, use scope is more
Extensively.But specific Intelligent treatment is mainly that display module reminds user in said program, and operation button adjusts dust suction to user again
The suction of device manually adjusts the power and suction of dust catcher, not only inconvenient, and manually adjust after power and rubbish suction
Attached demand is unable to reach best match, and will also result in rubbish can not quickly suck or the waste of electric energy.
Invention content
Institute of the invention purpose to be achieved is just to provide a kind of dust exhaust apparatus, is inhaled according to rubbish size and number adjust automatically
Wind turbine rotating speed not only ensures that rubbish effectively sucks, but also saves electric energy.
In order to achieve the above object, the present invention adopts the following technical scheme that：A kind of dust exhaust apparatus, including shell, air draught electricity
Machine and the control circuit being connect with induced-draught electric motor, shell are equipped with the suction inlet sucked for rubbish, and suction inlet is perceived equipped with rubbish
Device, rubbish perceptron are electrically connected with control circuit, and the dust exhaust apparatus is worked using following steps to control induced-draught electric motor：
Step 1：Data initialization；
Step 2：Rubbish perceptron perceives rubbish, and control circuit starts timing in level change, and starts to calculate pulse
A numerical value M, pwm value R and pulse width variations value Δ R；
Step 3：Control circuit records current PRF numerical value M when timing reaches preset time T, and control circuit is default
There are the first pulse threshold M1, the second pulse threshold M2 and pulse width variations threshold value S, wherein M1<M2, if pulse number value M≤M1, and
When pulse width variations value Δ R≤S, return to step one；If M1<M≤M2, pulse width variations value Δ R>S and pwm value R become hour, return
Step 1；If pulse number value M≤M1, pulse width variations value Δ R>S and pwm value R become hour, and the PWM value of control circuit output becomes
Small, induced-draught electric motor rotating speed reduces；Otherwise, the PWM value of control circuit output becomes larger, and induced-draught electric motor rotating speed improves.
Further, the control circuit is preset with the first pulse width threshold R1 and the second pulse width threshold R2, wherein R1<R2,
If pulse number value M≤M1, and when R≤R1, the PWM value of control circuit output is PWM5；If pulse number value M1<M≤M2, and
When R≤R1, the PWM value of control circuit output is PWM4；If pulse number value M>M2, and when R≤R1, control circuit output
PWM value is PWM3；If M≤M1, and R1<When R≤R2, the PWM value of control circuit output is PWM4；If M1<M≤M2, and R1<R
When≤R2, the PWM value of control circuit output is PWM3；If M>M2, and R1<When R≤R2, the PWM value of control circuit output is
PWM2；If R>R2, when, the PWM value of control circuit output is PWM1, wherein PWM1>PWM2>PWM3>PWM4>PWM5.
Further, the control circuit calculates the pulsewidth average value R ' in preset time T, and pulsewidth average value R ' is more than pre-
If when R ° of pwm value, PWM value is adjusted to PWM1 by control circuit.
Further, the control circuit is also electrically connected with feedback circuit, and induced-draught electric motor rotating speed is transferred to by feedback circuit
Control circuit.
Further, the control circuit includes the microcontroller for perceiving control circuit and controlling induced-draught electric motor rotating speed, perception
Control circuit is connect with rubbish perceptron, and perception control circuit transmits pulse number value M, pwm value R and pulse width variations value Δ R
It is calculated and is judged to microcontroller.
Further, the control circuit further includes filtering and amplifying circuit, and the both ends of filtering and amplifying circuit are separately connected rubbish
Rubbish perceptron and perception control circuit.
Further, the rubbish perceptron includes RF transmitter and receiver, RF transmitter and receiver
It is oppositely arranged and set on the upstream end of suction inlet, receiver is connect with filtering and amplifying circuit.
Further, the dust exhaust apparatus further includes the round brush being set on the outside of suction inlet and the rolling for driving round brush to rotate
The output end of brush motor, round brush motor and control circuit connects, and dust exhaust apparatus is using the step control rolling identical as induced-draught electric motor
Brush motor works.
Further, the dust exhaust apparatus is dust catcher or sweeping robot.
After adopting the above technical scheme, the invention has the advantages that：
1, on the one hand, level change, control circuit is caused to calculate rubbish according to signal pulsewidth when rubbish passes through rubbish perceptron
The size of rubbish, while according to the dense degree of pulse number judgement rubbish, being obtained by the operation inside control circuit and most being matched
PWM value, control induced-draught electric motor speedup, increase the suction at suction inlet to promote the inhalant effect of rubbish, or ensureing rubbish
While rubbish is fully entrained, control induced-draught electric motor slows down to save electric energy, in the base for not increasing dust exhaust apparatus amount of parts
On plinth, by increasing rubbish acquisition parameter and change algorithm, more accurately analysis calculates the induced-draught electric motor needed for rubbish sucking
Rotating speed, control circuit adjust automatically induced-draught electric motor rotating speed, intelligence degree are high；On the other hand, pulse number value M≤M1, and arteries and veins
When wide changing value Δ R≤S, then the suction that suction needed for rubbish is provided with the rotation of current induced-draught electric motor is not much different, i.e. air draught electricity
Machine current rotating speed can ensure that rubbish is fully entrained in dust exhaust apparatus, then induced-draught electric motor rotating speed remains unchanged, and control circuit is again
Timing carries out next detection period acquisition, calculating and the analysis of data, ensures the company of detection and induced-draught electric motor adjustment of rotational speed
Coherence；M1<M≤M2, pulse width variations value Δ R>S and pwm value R becomes hour then detects that rubbish quantity is medium and rubbish size phase
Than when becoming much smaller before, can determine that slightly becoming smaller for suction needed for rubbish, keep induced-draught electric motor rotating speed constant at this time, true
It protects rubbish to be fully entrained under conditions of dust catcher, avoids frequently changing induced-draught electric motor rotating speed, improve induced-draught electric motor service life；Arteries and veins
Punching numerical value M≤M1, pulse width variations value Δ R>S and pwm value R change hours, then suction needed for rubbish is smaller, control circuit control
Motor speed declines, and not only ensures that rubbish can be inhaled into, but also save electric energy, no person judges that the suction needed for current rubbish is big
In the suction that current dust exhaust apparatus provides, control circuit controls induced-draught electric motor and improves rotating speed, ensures that rubbish can be inhaled into dust suction dress
In setting.
2, control circuit is preset with the first pulse width threshold R1 and the second pulse width threshold R2, wherein R1<Pulsewidth is divided by R2
Three kinds of sections, convenient for identifying small-sized, medium-sized and bulky refuse, while the default output PWM1, PWM2 of control circuit, PWM3, PWM4,
Five kinds of PWM values of PWM5, wherein PWM1>PWM2>PWM3>PWM4>PWM5 ensures that induced-draught electric motor rotating speed only becomes between five kinds of gears
Change, induced-draught electric motor rotating speed is not only avoided frequently to change and reduce induced-draught electric motor service life, but also conducive to the structure of transmission device
Design, meanwhile, it reduces computational load and the operation time of entire control circuit, ensures the validity and in time of suction adjustment
Property.
3, when pulsewidth average value R ' is more than R ° of default pwm value, you can judge that the quantity of bulky refuse in the region is more,
PWM value is adjusted to PWM1 by control circuit, i.e., adjusts induced-draught electric motor to the rotating speed of highest gear, big in the area to realize
Power emphasis cleans, and improves the imbedibility and use scope of dust exhaust apparatus.
4, perception control circuit carries out counting and the calculating of pulse width variations value to pulse, then perceives control circuit to acquisition
To initial data carry out processing to meet the initial value needed for microcontroller operation, ensure microcontroller normal operation, meanwhile, sense
Know control circuit and microcontroller split settings, reduces the alternative cost of later stage upgrading.
5, the setting of filtering and amplifying circuit, the small-signal for not only transmitting rubbish perceptron are amplified, and ensure perception control
Circuit receives satisfied level signal, and filters out alternating component in voltage, avoids the harmonic wave interference in circuit.Infrared ray is sent out
Emitter infrared light and is transferred to receiver by emitting, then forms grating in suction inlet, detection rubbish by the time of grating come
Judge the size of rubbish.
Description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is the flow chart (one) of induced-draught electric motor control method in embodiment one；
Fig. 2 is the flow chart (two) of induced-draught electric motor control method in embodiment one；
Fig. 3 is the truth table of control circuit control output in embodiment one；
Fig. 4 is the structure chart of rubbish perceptron in embodiment one.
Specific implementation mode
Embodiment one：
The present embodiment provides a kind of dust exhaust apparatuses, as depicted in figs. 1 and 2, including shell, induced-draught electric motor and with air draught electricity
The control circuit of machine connection, shell are equipped with the suction inlet that suck for rubbish, and suction inlet is equipped with rubbish perceptron, rubbish perceptron and
Control circuit is electrically connected, and the dust exhaust apparatus is worked using following steps to control induced-draught electric motor：
Step 1：Data initialization；
Step 2：Rubbish perceptron perceives rubbish, and control circuit starts timing in level change, and starts to calculate pulse
A numerical value M, pwm value R and pulse width variations value Δ R；
Step 3：Control circuit records current PRF numerical value M when timing reaches preset time T, and control circuit is default
There are the first pulse threshold M1, the second pulse threshold M2 and pulse width variations threshold value S, wherein M1<M2, if pulse number value M≤M1, and
When pulse width variations value Δ R≤S, return to step one；If M1<M≤M2, pulse width variations value Δ R>S and pwm value R become hour, return
Step 1；If pulse number value M≤M1, pulse width variations value Δ R>S and pwm value R become hour, and the PWM value of control circuit output becomes
Small, motor speed reduces；Otherwise, the PWM value of control circuit output becomes larger, and induced-draught electric motor rotating speed improves.
On the one hand, level change, control circuit is caused to calculate rubbish according to signal pulsewidth when rubbish passes through rubbish perceptron
Size, while according to pulse number judge rubbish dense degree, obtained by the operation inside control circuit most matched
PWM value controls induced-draught electric motor speedup, increases the suction at suction inlet to promote the inhalant effect of rubbish, or ensureing rubbish
While being fully entrained, control induced-draught electric motor slows down to save electric energy, on the basis for not increasing dust exhaust apparatus amount of parts
On, by increasing rubbish acquisition parameter and change algorithm, the induced-draught electric motor that more accurately analysis calculates needed for rubbish sucking turns
Speed, control circuit adjust automatically induced-draught electric motor rotating speed, intelligence degree are high；On the other hand, pulse number value M≤M1, and pulsewidth
When changing value Δ R≤S, then the suction that suction needed for rubbish is provided with the rotation of current induced-draught electric motor is not much different, i.e. induced-draught electric motor
Current rotating speed can ensure that rubbish is fully entrained in dust exhaust apparatus, then induced-draught electric motor rotating speed remains unchanged, and control circuit is counted again
When acquisition, calculating and the analysis of data are carried out to next detection period, ensure the coherent of detection and induced-draught electric motor adjustment of rotational speed
Property；M1<M≤M2, pulse width variations value Δ R>S and pwm value R change hours, then detect that rubbish quantity is medium and rubbish size is compared
When becoming much smaller before, it can determine that slightly becoming smaller for suction needed for rubbish, keep induced-draught electric motor rotating speed constant at this time, ensuring
Rubbish is fully entrained under conditions of dust catcher, avoids frequently changing induced-draught electric motor rotating speed, improves induced-draught electric motor service life；Pulse
A numerical value M≤M1, pulse width variations value Δ R>S and pwm value R change hours, then suction needed for rubbish is smaller, and control circuit control is inhaled
Wind turbine rotating speed declines, and not only ensures that rubbish can be inhaled into, but also save electric energy, no person judges the suction needed for current rubbish
More than the suction that current dust exhaust apparatus provides, control circuit controls induced-draught electric motor and improves rotating speed, ensures that rubbish can be inhaled into dust suction
In device.
In conjunction with Fig. 3, control circuit is preset with the first pulse width threshold R1 and the second pulse width threshold R2, wherein R1<R2, by pulsewidth
Three kinds of sections are divided into, convenient for identifying small-sized, medium-sized and bulky refuse, while the default output PWM1, PWM2 of control circuit,
Five kinds of PWM values of PWM3, PWM4, PWM5, wherein PWM1>PWM2>PWM3>PWM4>PWM5 ensures induced-draught electric motor rotating speed only at five kinds
Change between gear, induced-draught electric motor rotating speed is not only avoided frequently to change and reduce induced-draught electric motor service life, but also conducive to transmission
The structure design of device, meanwhile, computational load and the operation time of entire control circuit are reduced, ensures the effective of suction adjustment
Property and promptness.If pulse number value M≤M1, and when R≤R1, the PWM value of control circuit output is PWM5, is determined as a small amount of
Small-sized rubbish, induced-draught electric motor select the rotating speed of lowest gear to can guarantee sucking, save electric energy；If pulse number value M1<M≤
M2, and when R≤R1, the PWM value of control circuit output is PWM4, is determined as that the small-sized rubbish of moderate quatity, induced-draught electric motor are selected
The rotating speed of low and middle-grade positions ensures rubbish suction efficiency；If pulse number value M>M2, and when R≤R1, the PWM of control circuit output
Value is PWM3, is determined as that a large amount of small-sized rubbish, induced-draught electric motor select the rotating speed of intervening gears, ensures that rubbish quickly sucks；If M
≤ M1, and R1<When R≤R2, the PWM value of control circuit output is PWM4, is determined as that a small amount of medium-sized rubbish, induced-draught electric motor are selected
The rotating speed of low and middle-grade positions ensures rubbish suction efficiency；If M1<M≤M2, and R1<When R≤R2, the PWM value of control circuit output is
PWM3 is determined as that the medium-sized rubbish of moderate quatity, induced-draught electric motor select the rotating speed of intervening gears, ensures rubbish suction efficiency；If M
>M2, and R1<When R≤R2, the PWM value of control circuit output is PWM2, is determined as that a large amount of medium-sized rubbish, induced-draught electric motor are selected
The rotating speed of medium-to-high grade position ensures that rubbish is fully entrained；If R>When R2, the PWM value of control circuit output is PWM1, is determined as large size
Rubbish, needed for suction it is excessive, therefore no matter how the size of single rubbish is required for exporting maximum PWM value, that is, promotes to inhale
Wind turbine is operated with maximum speed, improves the suction of dust catcher.
Control circuit calculates the pulsewidth average value R ' in preset time T, when pulsewidth average value R ' is more than R ° of default pwm value,
It can determine that the quantity of bulky refuse in the region is more, PWM value is adjusted to PWM1 by control circuit, i.e., adjusts induced-draught electric motor
To the rotating speed of highest gear, to realize, high-power emphasis cleans in the area, improves the imbedibility of dust exhaust apparatus and uses model
It encloses.
Control circuit is also electrically connected with feedback circuit, and induced-draught electric motor rotating speed is transferred to control circuit by feedback circuit, control
The induced-draught electric motor rotating speed that circuit arrives the most matched induced-draught electric motor rotating speed obtained according to rubbish size and number and feedback reception
It makes comparisons, speed-raising or reduction of speed action is made convenient for sentencing control circuit control induced-draught electric motor.
Control circuit includes the microcontroller for perceiving control circuit and controlling induced-draught electric motor rotating speed, perceives control circuit and rubbish
Perceptron connects, and pulse number value M, pwm value R and pulse width variations value Δ R are transferred to microcontroller and counted by perception control circuit
It calculates and judges.Perception control circuit carries out counting and the calculating of pulse width variations value to pulse, then perceives control circuit to acquisition
To initial data carry out processing to meet the initial value needed for microcontroller operation, ensure microcontroller normal operation, meanwhile, sense
Know control circuit and microcontroller split settings, reduces the alternative cost of later stage upgrading.
Control circuit further includes filtering and amplifying circuit, and the both ends of filtering and amplifying circuit are separately connected rubbish perceptron and perception
Control circuit.The setting of filtering and amplifying circuit, the small-signal for not only transmitting rubbish perceptron are amplified, and ensure perception control electricity
Road receives satisfied level signal, and filters out alternating component in voltage, avoids the harmonic wave interference in circuit.
In conjunction with Fig. 4, in the present embodiment, rubbish perceptron includes RF transmitter 11 and receiver 12, infrared emitting
Device 11 is oppositely arranged with receiver 12 and set on the upstream end of suction inlet, improves the accuracy of detection, and receiver 12 is filtered with amplification
Wave circuit connects.RF transmitter 11 then forms grating, inspection by emitting infrared light and being transferred to receiver 12 in suction inlet
Survey the size that rubbish judges rubbish by the time of grating.
In the present embodiment, dust exhaust apparatus further includes the round brush being set on the outside of suction inlet and the round brush for driving round brush to rotate
The output end of motor, round brush motor and control circuit connects, and dust exhaust apparatus controls round brush using the step identical as induced-draught electric motor
Motor works.Induced-draught electric motor rotation ensures that the suction at inlet scoop, round brush motor drive round brush rotation, rubbish to be contacted simultaneously with round brush
It drives rubbish to be rotated with round brush, can smoothly enter into inlet scoop by suction when at the garbage rotary to inlet scoop of centrifugal rotation,
Improve dust collection efficiency.
In the present embodiment, dust exhaust apparatus can be dust catcher, and the dust catcher is not only strong to the inhalable of rubbish, but also drop
The low consumption of electric energy, meanwhile, under conditions of not changing structure of dust collector, by circuit and programming, improve entire
The intelligence degree of dust catcher is lost after reducing product up-gradation.
In the present embodiment, dust exhaust apparatus may be sweeping robot, and not only intelligence degree is high for the sweeping robot, clearly
It sweeps more totally, and the utilization rate in battery improves, ensures the sustainable cleaning of robot, while reducing charge and discharge number, carry
High battery.
In addition to above preferred embodiment, the present invention also has other embodiments, those skilled in the art can be according to this
Invention makes various changes and modifications, and without departing from the spirit of the present invention, should all belong in claims of the present invention and determine
The range of justice.
Claims (9)
1. a kind of dust exhaust apparatus, including shell, induced-draught electric motor and the control circuit being connect with induced-draught electric motor, shell is equipped with for rubbish
The suction inlet of rubbish sucking, suction inlet are equipped with rubbish perceptron, and rubbish perceptron is electrically connected with control circuit, which is characterized in that institute
Dust exhaust apparatus is stated using following steps to control induced-draught electric motor work：
Step 1：Data initialization；
Step 2：Rubbish perceptron perceives rubbish, and control circuit starts timing in level change, and starts to calculate pulse number
Value M, pwm value R and pulse width variations value Δ R；
Step 3：Control circuit records current PRF numerical value M when timing reaches preset time T, and control circuit is preset with the
One pulse threshold M1, the second pulse threshold M2 and pulse width variations threshold value S, wherein M1<M2, if pulse number value M≤M1, and pulsewidth
When changing value Δ R≤S, return to step one；If M1<M≤M2, pulse width variations value Δ R>S and pwm value R change hours, return to step
One；If pulse number value M≤M1, pulse width variations value Δ R>S and pwm value R become hour, and the PWM value of control circuit output becomes smaller,
Induced-draught electric motor rotating speed reduces；Otherwise, the PWM value of control circuit output becomes larger, and induced-draught electric motor rotating speed improves.
2. dust exhaust apparatus according to claim 1, which is characterized in that the control circuit is preset with the first pulse width threshold R1
With the second pulse width threshold R2, wherein R1<R2, if pulse number value M≤M1, and when R≤R1, the PWM value of control circuit output is
PWM5；If pulse number value M1<M≤M2, and when R≤R1, the PWM value of control circuit output is PWM4；If pulse number value M>
M2, and when R≤R1, the PWM value of control circuit output is PWM3；If M≤M1, and R1<When R≤R2, the PWM of control circuit output
Value is PWM4；If M1<M≤M2, and R1<When R≤R2, the PWM value of control circuit output is PWM3；If M>M2, and R1<R≤R2
When, the PWM value of control circuit output is PWM2；If R>R2, when, the PWM value of control circuit output is PWM1, wherein PWM1>
PWM2>PWM3>PWM4>PWM5。
3. dust exhaust apparatus according to claim 2, which is characterized in that the control circuit calculates the arteries and veins in preset time T
When wide average value R ', pulsewidth average value R ' are more than R ° of default pwm value, PWM value is adjusted to PWM1 by control circuit.
4. dust exhaust apparatus according to claim 1, which is characterized in that the control circuit is also electrically connected with feedback circuit,
Induced-draught electric motor rotating speed is transferred to control circuit by feedback circuit.
5. dust exhaust apparatus according to any one of claims 1 to 4, which is characterized in that the control circuit includes perception
The microcontroller of control circuit and control induced-draught electric motor rotating speed, perception control circuit are connect with rubbish perceptron, perceive control circuit
Pulse number value M, pwm value R and pulse width variations value Δ R are transferred to microcontroller to be calculated and judged.
6. dust exhaust apparatus according to claim 5, which is characterized in that the control circuit further includes filtering and amplifying circuit,
The both ends of filtering and amplifying circuit are separately connected rubbish perceptron and perception control circuit.
7. dust exhaust apparatus according to claim 6, which is characterized in that the rubbish perceptron include RF transmitter and
Receiver, RF transmitter are oppositely arranged with receiver and set on the upstream end of suction inlet, receiver and filtering and amplifying circuits
Connection.
8. dust exhaust apparatus according to any one of claims 1 to 4, which is characterized in that the dust exhaust apparatus further includes setting
The output end of round brush on the outside of suction inlet and the round brush motor for driving round brush to rotate, round brush motor and control circuit connects
It connects, dust exhaust apparatus is using the step control round brush motor work identical as induced-draught electric motor.
9. dust exhaust apparatus according to any one of claims 1 to 4, which is characterized in that the dust exhaust apparatus is dust catcher
Or sweeping robot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710012857.9A CN108283460B (en) | 2017-01-09 | 2017-01-09 | Dust suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710012857.9A CN108283460B (en) | 2017-01-09 | 2017-01-09 | Dust suction device |
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| Publication Number | Publication Date |
|---|---|
| CN108283460A true CN108283460A (en) | 2018-07-17 |
| CN108283460B CN108283460B (en) | 2021-04-09 |
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ID=62819163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710012857.9A Active CN108283460B (en) | 2017-01-09 | 2017-01-09 | Dust suction device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112107253A (en) * | 2019-06-21 | 2020-12-22 | 江苏美的清洁电器股份有限公司 | Control method and device and dust collector |
| CN112120596A (en) * | 2020-09-07 | 2020-12-25 | 广东乐生智能科技有限公司 | Air duct detection method |
| CN112667021A (en) * | 2020-12-11 | 2021-04-16 | 珠海格力电器股份有限公司 | Control method and control device for output power of purification equipment and air purification equipment |
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| CN108283460B (en) | 2021-04-09 |
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Effective date of registration: 20210428 Address after: 310018 No.2, Songqiao street, Hangzhou Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee after: PANASONIC HOME APPLIANCES (CHINA) Co.,Ltd. Address before: Sonjo economic and Technological Development Zone Hangzhou city Zhejiang province 310018 Street No. 6 Building 3 -A Patentee before: PANASONIC HOME APPLIANCES R&D CENTER (HANGZHOU) Co.,Ltd. |