CN108742310A - The scrubbing brush driving device of dust catcher - Google Patents
The scrubbing brush driving device of dust catcher Download PDFInfo
- Publication number
- CN108742310A CN108742310A CN201810868604.6A CN201810868604A CN108742310A CN 108742310 A CN108742310 A CN 108742310A CN 201810868604 A CN201810868604 A CN 201810868604A CN 108742310 A CN108742310 A CN 108742310A
- Authority
- CN
- China
- Prior art keywords
- resistance
- driving tube
- scrubbing brush
- driving
- dust catcher
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0405—Driving means for the brushes or agitators
- A47L9/0411—Driving means for the brushes or agitators driven by electric motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The present invention proposes a kind of scrubbing brush driving device of dust catcher, and the scrubbing brush driving device of the dust catcher includes：The first and second output ends being connected respectively with scrubbing brush；PWM input terminals receive pwm signal；The drive module being connected between PWM input terminals and the first and second output ends generates drive signal according to pwm signal, and exports to the first and second output ends；The detection module being connected with first and/or second output terminal detects the insert state of scrubbing brush.The scrubbing brush driving device of the dust catcher of the present invention, has the characteristics that low-power consumption, low cost, easily assembled, harness is few and safe.
Description
Technical field
The present invention relates to field of intelligent control technology more particularly to a kind of scrubbing brush driving devices of dust catcher.
Background technology
Floor brush of dust collector control technology, which mainly has, does not detect scrubbing brush plugging technique and interface feedback technique two on ground brush module
Kind.
The realization method for not detecting scrubbing brush plugging technique is that scrubbing brush control circuit is opened after booting, output control brush electricity
The pulse width of pressure modulates (Pulse Width Modulation, abbreviation PWM) signal.No matter scrubbing brush is pulled out and is inserted into, this
PWM exists always, therefore, does not detect scrubbing brush plugging technique scrubbing brush plug terminal band high voltage always, dangerous, and circuit
Plate oneself power consumption is big.
The realization method of interface feedback technique is on ground brush module, in addition to two control mouths of scrubbing brush, is in addition further added by one
Interface, ground brush module whether there is to feed back to dust catcher master control system scrubbing brush by this interface, therefore, connect on ground brush module
Mouth feedback technique need to increase feedback interface, increase harness, assembling is complicated, of high cost.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, it is an object of the invention to propose a kind of scrubbing brush driving device of dust catcher, it is ensured that scrubbing brush driving device
Have the characteristics that low-power consumption, low cost, easily assembled, harness is few and safe.
In order to achieve the above objectives, first aspect present invention embodiment proposes a kind of scrubbing brush driving device of dust catcher, packet
It includes：
First output end and second output terminal, first output end and second output terminal are connected with scrubbing brush；
PWM input terminals, for receiving pwm signal；
The drive module being connected between the PWM input terminals and first output end and second output terminal, is used for
Drive signal is generated according to the pwm signal, and drive signal is exported to first output end and second output terminal；
Detection module, the detection module are connected with described first and/or second output terminal, for detecting the scrubbing brush
Insert state.
The scrubbing brush driving device of the dust catcher proposed according to embodiments of the present invention, PWM input terminals reception pwm signal, first
Drive module between output end and second output terminal generates drive signal according to pwm signal, and drive signal is exported to institute
The first output end and second output terminal are stated, the detection module being connected with first and/or second output terminal is completed the scrubbing brush and is inserted into
The detection of state, so as to when detecting that scrubbing brush is not inserted into and (extracts), close pwm signal, the scrubbing brush of dust catcher is made to drive
The scrubbing brush pluggable terminals of device do not continue band high voltage, therefore safety, circuit board are low in energy consumption, are in addition not necessarily to increase feedback interface,
Therefore design that simple, easily assembled, at low cost, harness is few.
According to one embodiment of present invention, the drive module includes：First to be connected with the second output terminal opens
Guan Guan, the earth-return circuit break-make for controlling the second output terminal；The first order driving submodule being connected with the PWM input terminals
Block；Submodule, the second level is driven to drive submodule with the second level that the first order drives the output end of submodule to be connected
Output end be connected with the control terminal of the first switch pipe.
According to one embodiment of present invention, the first order driving submodule includes：First resistor, the first resistor
First end be connected with the PWM input terminals；The first end of second resistance, the second resistance is connected with power supply；First driving
Pipe, the first end of first driving tube are connected with the second end of the second resistance, the second termination of first driving tube
The control terminal on ground, first driving tube is connected with the second end of the first resistor, wherein the second end of the second resistance
The output end of submodule is driven for the first order.
According to one embodiment of present invention, the second level driving submodule includes：3rd resistor, the 3rd resistor
First end be connected with the power supply；Second driving tube, control terminal and the first order of second driving tube drive submodule
The output end of block is connected, and the first end of second driving tube is connected with the second end of the 3rd resistor, second driving
The second end of pipe is grounded；The first end of 4th resistance, the 4th resistance is connected with the power supply；Third driving tube, described
The control terminal of three driving tubes is connected with the second end of the 3rd resistor, the first end of the third driving tube and the 4th electricity
The second end of resistance is connected；The control terminal of 4th driving tube, the 4th driving tube is connected with the second end of the 3rd resistor, institute
The first end for stating the 4th driving tube is connected with the second end of the third driving tube, the second end ground connection of the 4th driving tube；
5th resistance, the first end of the first end of the 5th resistance and the second end and the 4th driving tube of the third driving tube
It is connected, the second end of the 5th resistance is connected with the control terminal of the first switch pipe.
According to one embodiment of present invention, the scrubbing brush driving device further includes：Be connected to first output end and
The first diode between second output terminal.
According to one embodiment of present invention, the scrubbing brush driving device further includes：Enabled module, for receiving enabled letter
Number, and the detection module is controlled according to the enable signal.
According to one embodiment of present invention, the detection module includes：Second diode, the sun of second diode
Pole is connected with the second output terminal；5th driving tube, the moon of the first end and second diode of the 5th driving tube
Extremely it is connected, the control terminal of the 5th driving tube is connected with the enabled module；6th resistance, the first end of the 6th resistance
It is connected with power supply；The first end of 7th resistance, the 7th resistance is connected with the second end of the 5th driving tube；6th driving
Pipe, the control terminal of the 6th driving tube is connected with the second end of the 7th resistance, the first end of the 6th driving tube and
The second end of 6th resistance is connected, the second end ground connection of the 6th driving tube, wherein the first of the 6th driving tube
End is scrubbing brush insert state test side.
According to one embodiment of present invention, the enabled module includes：8th resistance, the first end of the 8th resistance
It is connected with the enable signal；7th driving tube, the second end phase of the control terminal and the 8th resistance of the 7th driving tube
Even, the first end of the 7th driving tube is the output end of the enabled module, the second end ground connection of the 7th driving tube.
According to one embodiment of present invention, the drive module includes：Second to be connected with the second output terminal opens
Guan Guan；The first order driver being connected with the PWM input terminals；The second level being connected with the output end of the first order driver
Driver；The third level driver being connected with the output end of the second level driver, the output end of the third level driver
It is connected with the control terminal of the second switch pipe.
According to one embodiment of present invention, the first order driver includes：9th resistance, the of the 9th resistance
One end is connected with the power supply；The first end of tenth resistance, the tenth resistance is connected with the PWM input terminals；8th driving
Pipe, the control terminal of the 8th driving tube is connected with the second end of the tenth resistance, the first end of the 8th driving tube and
The second end of 9th resistance is connected；Eleventh resistor, the first end of the eleventh resistor and the 8th driving tube
Second end is connected, the second end ground connection of the eleventh resistor, wherein the first end of the eleventh resistor is the first order
The output end of driver.
According to one embodiment of present invention, the second level driver includes：Twelfth resistor, the twelfth resistor
First end be connected with the power supply；Thirteenth resistor, the of the first end of the thirteenth resistor and the twelfth resistor
Two ends are connected；The control terminal of 9th driving tube, the 9th driving tube is connected with the output end of the first order driver, described
The first end of 9th driving tube is connected with the second end of the thirteenth resistor, the second end ground connection of the 9th driving tube；The
The control terminal of ten driving tubes, the tenth driving tube is connected with the second end of the twelfth resistor, the tenth driving tube
First end is connected with the power supply, the 14th resistance, the first end of the 14th resistance and the second of the tenth driving tube
End is connected；The first end of 15th resistance, the 15th resistance is connected with the second end of the 14th resistance, and the described tenth
The second end of five resistance is grounded, wherein the second end of the 14th resistance is the output end of the second level driver.
According to one embodiment of present invention, the third level driver includes：Third diode, the third diode
Anode be connected with the output end of the second level driver；11st driving tube, the control terminal of the 11st driving tube with
The output end of the second level driver is connected, the cathode phase of the first end and the third diode of the 11st driving tube
Even, the second end ground connection of the 11st driving tube；16th resistance, the first end and the described 3rd 2 of the 16th resistance
The cathode of pole pipe is connected, the second end ground connection of the 16th resistance, wherein the cathode of the third diode is the third
The output end of grade driver is connected with the control terminal of the second switch pipe.
According to one embodiment of present invention, the scrubbing brush driving device further includes：Be connected to first output end and
The 4th diode between second output terminal.
According to one embodiment of present invention, the detection module includes：First sampling resistor, first sampling resistor
Electric current for detecting the second switch pipe simultaneously generates sample rate current；First operational amplifier, first operational amplifier
It is connected with first sampling resistor, for being amplified to the sample rate current, wherein generate ground according to the sample rate current
Brush insert state testing result.
According to one embodiment of present invention, the detection module further includes：First filter, the first filter with
First operational amplifier is connected, for being filtered to amplified sample rate current.
According to one embodiment of present invention, the drive module includes：The third being connected with first output end is opened
Guan Guan；The first end of 17th resistance, the 17th resistance is connected with the PWM input terminals；18th resistance, the described tenth
The first end of eight resistance is connected with the power supply, the second end phase of the second end and the 17th resistance of the 18th resistance
Even；The control terminal of 12nd driving tube, the 12nd driving tube is connected with the second end of the 17th resistance；20th electricity
Resistance, the first end of the 20th resistance are connected with the power supply；21st resistance, the first end of the 21st resistance
It is connected with the power supply；13rd driving tube, the second end of the control terminal and the 20th resistance of the 13rd driving tube
It is connected, the first end of the 13rd driving tube is connected with the second end of the 21st resistance；14th driving tube, it is described
The control terminal of 14th driving tube is connected with the second end of the 20th resistance, the first end of the 14th driving tube and institute
The second end for stating the 13rd driving tube is connected, the second end ground connection of the 14th driving tube；22nd resistance, described second
The first end of 12 resistance is connected with the second end of the 13rd driving tube, the second end of the 22nd resistance with it is described
The control terminal of third switching tube is connected.
According to one embodiment of present invention, the detection module includes：First detection sub-module, the first detection
Module is connected with first output end, for generating the first testing result；Second detection sub-module, the second detection submodule
Block is connected with the second output terminal, for generating the second testing result；Decision submodule, for being tied according to first detection
Fruit and the second testing result generate scrubbing brush insert state testing result.
According to one embodiment of present invention, the scrubbing brush driving device further includes：Be connected to first output end and
The 5th diode between second output terminal.
According to one embodiment of present invention, first detection sub-module includes：6th diode, the six or two pole
The cathode of pipe is connected with first output end；23rd resistance, first end and the power supply of the 23rd resistance
It is connected；The first end of 24th resistance, the 24th resistance is connected with the second end of the 23rd resistance；Second
The first end of 15 resistance, the 25th resistance is connected with the second end of the 24th resistance, the 25th resistance
Second end ground connection；The first end of 26th resistance, the 26th resistance is connected with the power supply；15th driving
Pipe, the control terminal of the 15th driving tube are connected with the second end of the 24th resistance, the 15th driving tube
First end is connected with the second end of the 26th resistance, the second end of the 15th driving tube ground connection, wherein described the
The second end of 26 resistance is the output end of first detection sub-module.
According to one embodiment of present invention, second detection sub-module includes：Second sampling resistor, described second adopts
Sample resistance is used to detect the electric current of the third switching tube and generates sample rate current；Second operational amplifier, second operation
Amplifier is connected with second sampling resistor, for being amplified to the sample rate current, wherein according to the sample rate current
Generate second testing result.
According to one embodiment of present invention, second detection sub-module further includes：Second filter, second filter
Wave device is connected with the second operational amplifier, for being filtered to amplified sample rate current.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram of the scrubbing brush driving device of dust catcher according to an embodiment of the invention；
Fig. 2 is the circuit diagram of the scrubbing brush driving device of dust catcher in accordance with another embodiment of the present invention；
Fig. 3 is the flow chart of the scrubbing brush control method of the scrubbing brush driving device based on dust catcher shown in Fig. 2；
Fig. 4 is the circuit diagram of the scrubbing brush driving device of dust catcher in accordance with another embodiment of the present invention；
Fig. 5 is the flow chart of the scrubbing brush control method of the scrubbing brush driving device of dust catcher based on shown in Fig. 4；
Fig. 6 is the circuit diagram of the scrubbing brush driving device of dust catcher in accordance with another embodiment of the present invention；
Fig. 7 is the flow chart of the scrubbing brush control method of the scrubbing brush driving device based on dust catcher shown in fig. 6.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below in conjunction with the accompanying drawings come describe the embodiment of the present invention dust catcher scrubbing brush driving device.
Fig. 1 is the structural schematic diagram of the scrubbing brush driving device of dust catcher according to an embodiment of the invention.Such as Fig. 1 institutes
Show, the scrubbing brush driving device of the dust catcher of the embodiment of the present invention includes：
First output end 11 and second output terminal 12, the first output end 11 and second output terminal 12 are connected with scrubbing brush.
PWM input terminals 13, for receiving pwm signal.
The drive module 14 being connected between PWM input terminals 13 and the first output end 11 and second output terminal 12, is used for
Drive signal is generated according to pwm signal, and drive signal is exported to first output end 11 and second output terminal 12.
Detection module 15, detection module 15 are connected with the first output end 11 and/or second output terminal 12, described for detecting
The insert state of scrubbing brush.
The scrubbing brush driving device of the dust catcher of the embodiment of the present invention, PWM input terminals receive pwm signal, the first output end and
Drive module between second output terminal generates drive signal according to pwm signal, and drive signal is exported to described first defeated
Outlet and second output terminal, the detection module being connected with the first output end and/or second output terminal complete the scrubbing brush and are inserted into shape
The detection of state makes the scrubbing brush of dust catcher drive dress so as to when detecting that scrubbing brush is not inserted into and (extracts), close pwm signal
The scrubbing brush pluggable terminals set do not continue band high voltage, therefore safety, circuit board are low in energy consumption, are in addition not necessarily to increase feedback interface, because
Design is simple, easily assembled, at low cost, harness is few for this.
Fig. 2 is the circuit diagram of the scrubbing brush driving device of dust catcher in accordance with another embodiment of the present invention.As shown in Fig. 2,
?
Drive module 14 includes on the basis of embodiment illustrated in fig. 1：With second output terminal Brush- (in corresponding diagram 1
Two output ends 12) connected first switch pipe Q4, first switch pipe Q4 is used to control the earth-return circuit of second output terminal Brush-
Break-make；The first order driving submodule being connected with PWM input terminal PWM Brush (the PWM input terminals 13 in corresponding diagram 1)；With
The second level that the first order drives the output end of submodule connected drives submodule, the second level to drive the output end and first of submodule
The control terminal of switching tube Q4 is connected.
Wherein, first order driving submodule includes：The first end of first resistor R14, first resistor R14 and PWM input terminals
PWM Brush are connected；The first end of second resistance R11, second resistance R11 are connected with power supply VCC；First driving tube Q8, first
The first end of driving tube is connected with the second end of second resistance R11, the second end ground connection of the first driving tube Q8, the first driving tube Q8
Control terminal be connected with the second end of first resistor R14, wherein the second end of second resistance R14 be the first order drive submodule
Output end.
Wherein, driving submodule in the second level includes：The first end of 3rd resistor R1,3rd resistor R1 are connected with power supply VCC；
The control terminal of second driving tube Q7, the second driving tube Q7 drives the output end of submodule to be connected with the first order, the second driving tube Q7
First end be connected with the second end of 3rd resistor R1, the second end of the second driving tube Q7 ground connection；4th resistance R2, the 4th resistance
First end be connected with power supply VCC；Third driving tube Q2, the control terminal of third driving tube Q2 and the second end phase of 3rd resistor R1
Even, the first end of third driving tube Q2 is connected with the second end of the 4th resistance R2；4th driving tube Q5, the control of the 4th driving tube Q5
End processed is connected with the second end of 3rd resistor R1, and the first end of the 4th driving tube Q5 is connected with the second end of third driving tube Q2,
The second end of 4th driving tube Q5 is grounded；The second end of the first end and third driving tube Q2 of 5th resistance R6, the 5th resistance R6
It is connected with the first end of the 4th driving tube Q5, the second end of the 5th resistance R6 is connected with the control terminal of first switch pipe Q4.
Wherein, the scrubbing brush driving device of the embodiment of the present invention further includes：It is defeated to be connected to the first output end Brush+ and second
The first diode D1 between outlet Brush-.
Wherein, the scrubbing brush driving device of the embodiment of the present invention further includes：Enabled module, for receiving enable signal, and root
Detection module is controlled according to enable signal.
Wherein, detection module 15 includes：The anode of second diode D2, the second diode D2 and second output terminal Brush-
It is connected；5th driving tube Q1, the first end of the 5th driving tube Q1 are connected with the cathode of the second diode D2, the 5th driving tube Q1's
Control terminal is connected with enabled module；The first end of 6th resistance R3, the 6th resistance R3 are connected with power vd D；7th resistance R5, the
The first end of seven resistance R5 is connected with the second end of the 5th driving tube Q1；6th driving tube Q3, the control terminal of the 6th driving tube Q3
It is connected with the second end of the 7th resistance R5, the first end of the 6th driving tube Q3 is connected with the second end of the 6th resistance R3, and the 6th drives
The second end ground connection of dynamic pipe Q3, wherein the first end of the 6th driving tube Q3 is scrubbing brush insert state test side Brush Detect.
Wherein, enabled module includes：The first end of 8th resistance R12, the 8th resistance R12 and enable signal Brush
ENABLE is connected；The control terminal of 7th driving tube Q6, the 7th driving tube Q6 are connected with the second end of the 8th resistance R12, and the 7th drives
The first end of dynamic pipe Q6 is the output end of enabled module, the second end ground connection of the 7th driving tube Q6.
Wherein, VBAT is cell voltage, and GND is ground connection.
The operation principle of the scrubbing brush driving device of the dust catcher of embodiment illustrated in fig. 2 is as shown in table 1：When PWMBrush is height
When level, the first driving tube Q8 conductings, the second driving tube Q7 is not turned on, and the 4th driving tube Q5 is not turned on, and third driving tube Q2 is led
It is logical, therefore the Q4 conductings of first switch pipe.When PWMBrush is low level, the first driving tube Q8 is not turned on, the second driving tube Q7
Conducting, the 4th driving tube Q5 conductings, third driving tube Q2 is not turned on, therefore first switch pipe Q4 is not turned on.
After scrubbing brush is inserted into, resistance very little between Brush+ and Brush- is equivalent to access.It (is pulled out when scrubbing brush is not inserted into
Go out) when, it is open circuit between Brush+ and Brush-.
Therefore, after scrubbing brush is inserted into, and when PWMBrush is high level, the anode of the second diode D2 is low level, the
Five driving tube Q1 are not turned on, and the 6th driving tube Q3 is not turned on, therefore Brush Detect are high level.
After scrubbing brush is inserted into, and when PWMBrush is low level, the anode of the second diode D2 is high level, the 5th driving
Pipe Q1 conductings, the 6th driving tube Q3 conductings, therefore Brush Detect are low level.
When scrubbing brush is not inserted into and (extracts), and PWMBrush is high level, the anode of the second diode D2 is low level,
5th driving tube Q1 is not turned on, and the 6th driving tube Q3 is not turned on, therefore Brush Detect are high level.
When scrubbing brush is not inserted into and (extracts), and PWMBrush is low level, the anode of the second diode D2 is low level,
5th driving tube Q1 is not turned on, and the 6th driving tube Q3 is not turned on, therefore Brush Detect are high level.
When obtaining electric, setting Brush ENABLE are high level, and the 7th driving tube Q6 is connected, therefore ensure that detection module 15
Work.
The operation principle of the scrubbing brush driving device of 1 dust catcher of table
Based on above-mentioned operation principle, it can be achieved that detection to scrubbing brush insert state, and when detecting that scrubbing brush is extracted, close
Pwm signal is closed, i.e., so that pwm signal is low level, so that the scrubbing brush pluggable terminals of the scrubbing brush driving device of dust catcher are not
Continue band high voltage, therefore safety, circuit board are low in energy consumption.
Fig. 3 is the flow chart of the scrubbing brush control method of the scrubbing brush driving device based on dust catcher shown in Fig. 2.Such as Fig. 3 institutes
Show, scrubbing brush control control method includes：
S101：Start to discharge.
S102：Export scrubbing brush pwm signal (PWM Brush have control pulse).
S103：Detecting state is pulled out into scrubbing brush.
S104：Judge whether Brush Detect continue no pulse output in X seconds.
Detecting state is pulled out if it is not, then returning to S103 and reentering scrubbing brush；If so, into S105 steps.
S105：Judge that result is pulled out for scrubbing brush, close scrubbing brush pwm signal (PWM Brush are low level).
S106：Detecting state is accessed into scrubbing brush.
S107：Judge whether Brush Detect continue X seconds low levels.
If it is not, then returning to S106 enters scrubbing brush access detecting state；If so, into S108 steps.
S108：Judge that result is inserted into for scrubbing brush, returning to S102 output scrubbing brushes pwm signal, (PWM Brush have control arteries and veins
Punching).
The scrubbing brush driving device of the dust catcher of the embodiment of the present invention, PWM input terminals receive pwm signal, the first output end and
Drive module between second output terminal generates drive signal according to pwm signal, and drive signal is exported to described first defeated
Outlet and second output terminal, the detection module being connected with second output terminal complete the detection of the scrubbing brush insert state, so as to
When detecting that scrubbing brush is not inserted into and (extracts), pwm signal is closed, i.e., so that pwm signal is low level, makes the scrubbing brush of dust catcher
The scrubbing brush pluggable terminals of driving device do not continue band high voltage, therefore safety, circuit board are low in energy consumption, are in addition not necessarily to increase feedback and connect
Mouthful, therefore design is simple, easily assembled, at low cost, harness is few.
Fig. 4 is the circuit diagram of the scrubbing brush driving device of dust catcher in accordance with another embodiment of the present invention.As shown in figure 4,
On the basis of embodiment shown in Fig. 1, drive module 14 includes：With the second output terminal MI- (second output terminals in corresponding diagram 2
12) connected second switch pipe Q10；First to be connected with PWM input terminal BRUSH PWM (the first output end 12 in corresponding diagram 1)
Grade driver；The second level driver being connected with the output end of first order driver；It is connected with the output end of second level driver
Third level driver, the output end of third level driver is connected with the control terminal of second switch pipe Q10.
Wherein, first order driver includes：The first end of 9th resistance R21, the 9th resistance R21 are connected with power supply VCC；The
The first end of ten resistance R23, the tenth resistance R23 is connected with PWM input terminal BRUSH PWM；8th driving tube Q11, the 8th driving
The control terminal of pipe Q11 is connected with the second end of the tenth resistance R23, and the of the first end of the 8th driving tube Q11 and the 9th resistance R21
Two ends are connected；Eleventh resistor R33, the first end of eleventh resistor R33 are connected with the second end of the 8th driving tube Q11, and the tenth
The second end of one resistance R33 is grounded, wherein the first end of eleventh resistor R33 is the output end of first order driver.
Wherein, second level driver includes：The first end of twelfth resistor R18, twelfth resistor R18 and power vd D phases
Even；The first end of thirteenth resistor R20, thirteenth resistor R20 are connected with the second end of twelfth resistor R18；9th driving tube
The control terminal of Q12, the 9th driving tube Q12 are connected with the output end of first order driver, the first end of the 9th driving tube Q12 and the
The second end of 13 resistance R20 is connected, the second end ground connection of the 9th driving tube Q12；Tenth driving tube Q9, the tenth driving tube Q9's
Control terminal is connected with the second end of twelfth resistor R18, and the first end of the tenth driving tube Q9 is connected with power vd D；14th electricity
Q22 is hindered, the first end of the 14th resistance Q22 is connected with the second end of the tenth driving tube Q9；15th resistance R26, the 15th electricity
The first end of resistance R26 is connected with the second end of the 14th resistance R22, the second end ground connection of the 15th resistance, wherein the 14th electricity
The second end for hindering R22 is the output end of second level driver.
Wherein, third level driver includes：The anode of third diode D8, third diode D8 and second level driver
Output end is connected；The control terminal of 11st driving tube Q13, the 11st driving tube Q13 are connected with the output end of second level driver,
The first end of 11st driving tube Q13 is connected with the cathode of third diode D8, the second end ground connection of the 11st driving tube Q13；
The first end of 16th resistance Q25, the 16th resistance R25 are connected with the cathode of third diode D8, and the of the 16th resistance R25
Two ends are grounded, wherein the cathode of third diode D8 is the control terminal of the output end and second switch pipe Q10 of third level driver
It is connected.
Wherein, the scrubbing brush driving device of the embodiment of the present invention further includes：It is connected to the first output end MI+ and second output terminal
The 4th diode D7 between MI-.
Wherein, detection module 15 includes：First sampling resistor R27, the first sampling resistor R27 is for detecting second switch pipe
The electric current of Q10 simultaneously generates sample rate current；First operational amplifier U4A, the first operational amplifier U4A and the first sampling resistor R27
It is connected, for being amplified to sample rate current, wherein scrubbing brush insert state testing result is generated according to sample rate current Brush_I.
Wherein, detection module 15 further includes：First filter (the RC filters for including resistance R75 and capacitance C27 compositions),
First filter is connected with the first operational amplifier U4A, for being filtered to amplified sample rate current.
Wherein, BATT+ is cell voltage, and GND is ground connection, and J4 is earth brush motor module.
The operation principle of the scrubbing brush driving device of embodiment illustrated in fig. 4 is as shown in table 2：When BRUSH PWM are high level,
8th driving tube Q11 is not turned on, and the 9th driving tube Q12 is not turned on, and the tenth driving tube Q9 is not turned on, and the 11st driving tube Q13 is not
Conducting, therefore, second switch pipe Q10 is not turned on.When BRUSH PWM are low level, the 8th driving tube Q11 conductings, the 9th drives
Dynamic pipe Q12 conductings, the tenth driving tube Q9 conductings, the 11st driving tube Q13 conductings, therefore, the Q10 conductings of second switch pipe.
After scrubbing brush is inserted into, resistance very little between MI+ and MI- is equivalent to access.When scrubbing brush is not inserted into and (extracts),
It is open circuit between MI+ and MI-.
Therefore, after scrubbing brush is inserted into, and BRUSH PWM be high level when, second switch pipe Q10 is not turned on, first sampling
Resistance R27 cannot detect the electric current of second switch pipe Q10 and generate sample rate current, and the ends BRUSH_I are without effective operating current.
After scrubbing brush is inserted into, and when BRUSH PWM are low level, second switch pipe Q10 conducting, the first sampling resistor R27
It detects the electric current of second switch pipe Q10 and generates sample rate current, sample rate current amplifies several times by the first operational amplifier, so
It is filtered afterwards by first filter, the effective operating current stablized after the output amplification of the ends BRUSH_I.
It is breaking between MI+ and MI- when scrubbing brush is not inserted into and (extracts), when BRUSH PWM are high level or low level,
First sampling resistor R27 cannot detect the electric current of second switch pipe Q10 and generate sample rate current, and the ends BRUSH_I are without effective
Operating current.
The operation principle of the scrubbing brush driving device of 2 dust catcher of table
Based on above-mentioned operation principle, it can be achieved that detection to scrubbing brush insert state, and when detecting that scrubbing brush is extracted, close
Pwm signal is closed, i.e., so that pwm signal is high level, so that the scrubbing brush pluggable terminals of the scrubbing brush driving device of dust catcher are not
Continue band high voltage, therefore safety, circuit board are low in energy consumption.In addition, detecting that scrubbing brush extracts, it, can be with after closing pwm signal
Certain low duty ratio pwm signal is opened in timing, makes very low voltage there are one scrubbing brush both ends, and earth brush motor does not move at this time, ground
Weak current of the brush pluggable terminals with very little.So that weak current of the scrubbing brush pluggable terminals not timing with very little, therefore safety, electricity
Road plate is low in energy consumption.
Fig. 5 is the flow chart of the scrubbing brush control method of the scrubbing brush driving device of dust catcher based on shown in Fig. 4.
As shown in figure 5, the scrubbing brush control method includes：
S201：Start to discharge.
S202：Export scrubbing brush pwm signal (BRUSH PWM have control pulse).
S203：Constant current closed-loop control or non-closed-loop control.
S204：Detecting state is pulled out into scrubbing brush.
S205：Judge whether BRUSH_I continues to export without effective operating current for X seconds.
Detecting state is pulled out if it is not, then returning to S204 and reentering scrubbing brush；If so, entering step 206.
S206：Judge that result is pulled out for scrubbing brush, close scrubbing brush pwm signal (BRUSH PWM are high level).
S207：Detecting state is accessed into scrubbing brush.
S208：Timing BRUSH PWM are A, and scrubbing brush both end voltage is B at this time, and earth brush motor is motionless.
S209：Judge whether BRUSH I continue to have electric current Ia in X seconds.
If it is not, then returning to S207 reenters scrubbing brush access detecting state；If so, entering step S210.
S210：Judge that result is inserted into for scrubbing brush, returning to S202 output scrubbing brushes pwm signal, (BRUSH PWM have control arteries and veins
Punching).
The scrubbing brush driving device of the dust catcher of the embodiment of the present invention, PWM input terminals receive pwm signal, the first output end and
Drive module between second output terminal generates drive signal according to pwm signal, and drive signal is exported to described first defeated
Outlet and second output terminal, the detection module being connected with second switch pipe complete the detection of the scrubbing brush insert state, so as to
When detecting that scrubbing brush is not inserted into and (extracts), pwm signal is closed, i.e., so that pwm signal is high level, makes the scrubbing brush of dust catcher
The scrubbing brush pluggable terminals of driving device do not continue band high voltage, therefore safety, circuit board are low in energy consumption, are in addition not necessarily to increase feedback and connect
Mouthful, therefore design is simple, easily assembled, at low cost, harness is few.
Fig. 6 is the circuit diagram of the scrubbing brush driving device of dust catcher in accordance with another embodiment of the present invention.As shown in fig. 6,
On the basis of embodiment shown in Fig. 1, drive module 14 includes：The third switching tube Q2 being connected with the first output end BR+；Tenth
The first end of seven resistance R11, the 17th resistance R11 and PWM input terminal PWM BURSH (the PWM input terminals 13 in corresponding diagram 1) phase
Even；The first end of 18th resistance R8, the 18th resistance R8 are connected with power vd D, the second end and the tenth of the 18th resistance R8
The second end of seven resistance R11 is connected；The control terminal of 12nd driving tube Q5, the 12nd driving tube Q5 are with the 17th resistance R11's
Second end is connected；The first end of 20th resistance R1, the 20th resistance R1 are connected with power supply VCC；21st resistance R2, second
The first end of 11 resistance R2 is connected with power supply VCC；13rd driving tube Q1, the control terminal and the 20th of the 13rd driving tube Q1
The second end of resistance R1 is connected, and the first end of the 13rd driving tube Q1 is connected with the second end of the 21st resistance R2；14th
Driving tube Q4, the control terminal of the 14th driving tube Q4 are connected with the second end of the 20th resistance R1, and the of the 14th driving tube Q4
One end is connected with the second end of the 13rd driving tube Q1, the second end ground connection of the 14th driving tube Q4；22nd resistance R6, the
The first end of 22 resistance R6 is connected with the second end of the 13rd driving tube Q1, the second end and third of the 22nd resistance R6
The control terminal of switching tube Q2 is connected.
Wherein, detection module of the embodiment of the present invention 15 includes：First detection sub-module, the first detection sub-module and first defeated
Outlet is connected, for generating the first testing result Brush Detect；Second detection sub-module, the second detection sub-module and second
Output end is connected, for generating the second testing result Brush_I；Decision submodule, for according to the first testing result
BrushDetect and the second testing result Brush_I generate scrubbing brush insert state testing result.
Wherein, the scrubbing brush driving device of the embodiment of the present invention further includes：The first output end BR+ is connected to (in corresponding diagram 1
First output end 11) the 4th diode D2 between second output terminal BR- (second output terminal 12 in corresponding diagram 1).
Wherein, the first detection sub-module includes：5th diode D1, the cathode of the 5th diode D1 and the first output end phase
Even；The first end of 23rd resistance R3, the 23rd resistance R3 are connected with power vd D；24th resistance R5, the 24th
The first end of resistance R5 is connected with the second end of the 23rd resistance R3；The of 25th resistance R7, the 25th resistance R7
One end is connected with the second end of the 24th resistance R5, the second end ground connection of the 25th resistance R7；26th resistance R4, the
The first end of 26 resistance is connected with power vd D；15th driving tube Q3, the control terminal and the 20th of the 15th driving tube Q3
The second end of four resistance R5 is connected, and the first end of the 15th driving tube Q3 is connected with the second end of the 26th resistance R4, and the tenth
The second end of five driving tube Q3 is grounded, wherein the second end of the 26th resistance R4 is the output end of the first detection sub-module
BRUSH Detect。
Wherein, the second detection sub-module includes：Second sampling resistor R16, the second sampling resistor R16 is opened for detecting third
It closes the electric current of pipe Q2 and generates sample rate current；Second operational amplifier U1A, second operational amplifier U1A and the second sampling resistor
R16 is connected, for being amplified to sample rate current, wherein generates the second testing result BRUSH_ according to sample rate current BRUSH_I
I。
Wherein, the second detection sub-module further includes：Second filter (including the RC filtering that resistance R14 and capacitance C3 are constituted
Device), second filter is connected with second operational amplifier U1A, for being filtered to amplified sample rate current.
Wherein, Vbat+ is cell voltage, and GND is ground connection, and J1 is earth brush motor module.
The operation principle of the scrubbing brush driving device of the dust catcher of embodiment illustrated in fig. 6 is as shown in table 3：When PWM BRUSH are
When high level, the 12nd driving tube Q5 conductings, the 13rd driving tube Q1 is not turned on, the 14th driving tube Q4 conductings, therefore third
Switching tube Q2 is not turned on.When PWM BRUSH are low level, the 12nd driving tube Q5 is not turned on, the 13rd driving tube Q1 conductings,
14th driving tube Q4 is not turned on, therefore the Q2 conductings of third switching tube.
After scrubbing brush is inserted into, resistance very little between BR+ and BR- is equivalent to access.When scrubbing brush is not inserted into and (extracts),
It is open circuit between BR+ and BR-.
Therefore, after scrubbing brush is inserted into, when PWM BRUSH are high level, Q2 is not turned on, and Q3 is not turned on, BRUSHDetect
For high level, only has Weak current by the second sampling resistor R16, so the amplified ends BRUSH_I obtain electric current very little；When
PWM_BRUSH is low level, and Q2 conductings, Q3 conductings, BRUSH Detect are low level, have work by the second sampling resistor R16
Make electric current, sample rate current amplifies several times by operational amplifier U1A, and then filtered device filtering, BRUSH_I are amplified at end
Stable high current afterwards.
When scrubbing brush is not inserted into and (extracts), and PWM BRUSH are high level or low level, the 15th driving tube Q3 is led
Logical, BRUSH Detect are low level；Only have Weak current by the second sampling resistor R16 to pass through, sample rate current passes through second
Then operational amplifier U1A amplifications are passed through second filter and are filtered, the ends BRUSH_I obtain stable low current.
The operation principle of the scrubbing brush driving device of 3 dust catcher of table
Based on above-mentioned operation principle, scrubbing brush insert state is detected according to the second testing result BRUSH_I, and on detection ground
When brush is extracted, whether it is inserted into according to the first testing result Brush Detect detection scrubbing brushes, to realize to scrubbing brush insert state
Detection, and detect scrubbing brush extract when, close pwm signal, i.e., so that pwm signal be high level so that dust catcher
The scrubbing brush pluggable terminals of scrubbing brush driving device do not continue band high voltage, therefore safety, circuit board are low in energy consumption.
Fig. 7 is the flow chart of the scrubbing brush control method of the scrubbing brush driving device based on dust catcher shown in fig. 6.
As shown in fig. 7, the scrubbing brush control method includes：
S301：Start to discharge.
S302：Export scrubbing brush pwm signal (PWM BRUSH have control pulse).
S303：Detecting state is pulled out into scrubbing brush.
S304：Judge whether scrubbing brush current signal BRUSH_I continues to be less than A in X seconds.
Detecting state is pulled out if it is not, then returning to S303 and entering scrubbing brush；If so, entering step S305.
S305：Judge that result is pulled out for scrubbing brush, close scrubbing brush pwm signal (PWM BRUSH are high level).
S306：Detecting state is accessed into scrubbing brush.
S307：Judge whether BRUSH Detect continue X seconds high level.
If it is not, then returning to S306 reenters scrubbing brush access detecting state；If so, entering step S308.
S308：Judge that result is inserted into for scrubbing brush, returning to S302 output scrubbing brushes pwm signal, (PWM BRUSH have control arteries and veins
Punching).
The scrubbing brush driving device of the embodiment of the present invention, PWM input terminals receive pwm signal, the first output end and the second output
Drive module between end generates drive signal according to pwm signal, and drive signal is exported to first output end and the
Two output ends, the detection module being connected with the first output and second output terminal complete the detection of the scrubbing brush insert state, to
When can be not inserted into and (extract) detecting scrubbing brush, pwm signal is closed, i.e., so that pwm signal is high level, makes the ground of dust catcher
The scrubbing brush pluggable terminals of brush driving device do not continue band high voltage, therefore safety, circuit board are low in energy consumption, are in addition not necessarily to increase feedback
Interface, therefore design is simple, easily assembled, at low cost, harness is few.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiments or example.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (21)
1. a kind of scrubbing brush driving device of dust catcher, which is characterized in that including：
First output end and second output terminal, first output end and second output terminal are connected with scrubbing brush；
PWM input terminals, for receiving pwm signal；
The drive module being connected between the PWM input terminals and first output end and second output terminal is used for basis
The pwm signal generates drive signal, and drive signal is exported to first output end and second output terminal；
Detection module, the detection module are connected with described first and/or second output terminal, the insertion for detecting the scrubbing brush
State.
2. the scrubbing brush driving device of dust catcher as described in claim 1, which is characterized in that the drive module includes：
The first switch pipe being connected with the second output terminal, the earth-return circuit break-make for controlling the second output terminal；
The first order driving submodule being connected with the PWM input terminals；
Submodule, the second level is driven to drive submodule with the second level that the first order drives the output end of submodule to be connected
Output end be connected with the control terminal of the first switch pipe.
3. the scrubbing brush driving device of dust catcher as claimed in claim 2, which is characterized in that the first order drives submodule packet
It includes：
First resistor, the first end of the first resistor are connected with the PWM input terminals；
The first end of second resistance, the second resistance is connected with power supply；
The first end of first driving tube, first driving tube is connected with the second end of the second resistance, first driving
The second end of pipe is grounded, and the control terminal of first driving tube is connected with the second end of the first resistor, wherein described second
The second end of resistance is the output end that the first order drives submodule.
4. the scrubbing brush driving device of dust catcher as claimed in claim 2, which is characterized in that the second level drives submodule packet
It includes：
3rd resistor, the first end of the 3rd resistor are connected with the power supply；
The control terminal of second driving tube, second driving tube drives the output end of submodule to be connected with the first order, described
The first end of second driving tube is connected with the second end of the 3rd resistor, the second end ground connection of second driving tube；
The first end of 4th resistance, the 4th resistance is connected with the power supply；
The control terminal of third driving tube, the third driving tube is connected with the second end of the 3rd resistor, the third driving
The first end of pipe is connected with the second end of the 4th resistance；
The control terminal of 4th driving tube, the 4th driving tube is connected with the second end of the 3rd resistor, the 4th driving
The first end of pipe is connected with the second end of the third driving tube, the second end ground connection of the 4th driving tube；
The of 5th resistance, the first end of the 5th resistance and the second end of the third driving tube and the 4th driving tube
One end is connected, and the second end of the 5th resistance is connected with the control terminal of the first switch pipe.
5. the scrubbing brush driving device of dust catcher as claimed in claim 2, which is characterized in that further include：
The first diode being connected between first output end and second output terminal.
6. the scrubbing brush driving device of dust catcher as claimed in claim 2, which is characterized in that further include：
Enabled module, controls the detection module for receiving enable signal, and according to the enable signal.
7. the scrubbing brush driving device of dust catcher as claimed in claim 6, which is characterized in that the detection module includes：
The anode of second diode, second diode is connected with the second output terminal；
The first end of 5th driving tube, the 5th driving tube is connected with the cathode of second diode, the 5th driving
The control terminal of pipe is connected with the enabled module；
The first end of 6th resistance, the 6th resistance is connected with power supply；
The first end of 7th resistance, the 7th resistance is connected with the second end of the 5th driving tube；
The control terminal of 6th driving tube, the 6th driving tube is connected with the second end of the 7th resistance, the 6th driving
The first end of pipe is connected with the second end of the 6th resistance, the second end ground connection of the 6th driving tube, wherein the described 6th
The first end of driving tube is scrubbing brush insert state test side.
8. the scrubbing brush driving device of dust catcher as claimed in claim 6, which is characterized in that the enabled module includes：
The first end of 8th resistance, the 8th resistance is connected with the enable signal；
The control terminal of 7th driving tube, the 7th driving tube is connected with the second end of the 8th resistance, the 7th driving
The first end of pipe is the output end of the enabled module, the second end ground connection of the 7th driving tube.
9. the scrubbing brush driving device of dust catcher as described in claim 1, which is characterized in that the drive module includes：
The second switch pipe being connected with second output terminal；
The first order driver being connected with the PWM input terminals；
The second level driver being connected with the output end of the first order driver；
The third level driver being connected with the output end of the second level driver, the output end of the third level driver and institute
The control terminal for stating second switch pipe is connected.
10. the scrubbing brush driving device of dust catcher as claimed in claim 9, which is characterized in that the first order driver includes：
The first end of 9th resistance, the 9th resistance is connected with power supply；
The first end of tenth resistance, the tenth resistance is connected with the PWM input terminals；
The control terminal of 8th driving tube, the 8th driving tube is connected with the second end of the tenth resistance, the 8th driving
The first end of pipe is connected with the second end of the 9th resistance；
Eleventh resistor, the first end of the eleventh resistor are connected with the second end of the 8th driving tube, and the described 11st
The second end of resistance is grounded, wherein the first end of the eleventh resistor is the output end of the first order driver.
11. the scrubbing brush driving device of dust catcher as claimed in claim 9, which is characterized in that the second level driver includes：
Twelfth resistor, the first end of the twelfth resistor are connected with the power supply；
Thirteenth resistor, the first end of the thirteenth resistor are connected with the second end of the twelfth resistor；
The control terminal of 9th driving tube, the 9th driving tube is connected with the output end of the first order driver, and the described 9th
The first end of driving tube is connected with the second end of the thirteenth resistor, the second end ground connection of the 9th driving tube；
The control terminal of tenth driving tube, the tenth driving tube is connected with the second end of the twelfth resistor, and the described tenth drives
The first end of dynamic pipe is connected with the power supply,
The first end of 14th resistance, the 14th resistance is connected with the second end of the tenth driving tube；
The first end of 15th resistance, the 15th resistance is connected with the second end of the 14th resistance, and the described 15th
The second end of resistance is grounded, wherein the second end of the 14th resistance is the output end of the second level driver.
12. the scrubbing brush driving device of dust catcher as claimed in claim 9, which is characterized in that the third level driver includes：
Third diode, the anode of the third diode are connected with the output end of the second level driver；
The control terminal of 11st driving tube, the 11st driving tube is connected with the output end of the second level driver, described
The first end of 11st driving tube is connected with the cathode of the third diode, the second end ground connection of the 11st driving tube；
The first end of 16th resistance, the 16th resistance is connected with the cathode of the third diode, the 16th electricity
The second end of resistance is grounded, wherein the cathode of the third diode is the output end and described second of the third level driver
The control terminal of switching tube is connected.
13. the scrubbing brush driving device of dust catcher as claimed in claim 9, which is characterized in that further include：
The 4th diode being connected between first output end and second output terminal.
14. the scrubbing brush driving device of dust catcher as claimed in claim 9, which is characterized in that the detection module includes：
First sampling resistor, first sampling resistor are used to detect the electric current of the second switch pipe and generate sample rate current；
First operational amplifier, first operational amplifier are connected with first sampling resistor, for sampling electricity
Stream is amplified, wherein generates scrubbing brush insert state testing result according to the sample rate current.
15. the scrubbing brush driving device of dust catcher as claimed in claim 14, which is characterized in that the detection module further includes：
First filter, the first filter are connected with first operational amplifier, for amplified sample rate current
It is filtered.
16. the scrubbing brush driving device of dust catcher as described in claim 1, which is characterized in that the drive module includes：
The third switching tube being connected with first output end；
The first end of 17th resistance, the 17th resistance is connected with the PWM input terminals；
The first end of 18th resistance, the 18th resistance is connected with power supply, the second end of the 18th resistance with it is described
The second end of 17th resistance is connected；
The control terminal of 12nd driving tube, the 12nd driving tube is connected with the second end of the 17th resistance；
The first end of 20th resistance, the 20th resistance is connected with the power supply；
The first end of 21st resistance, the 21st resistance is connected with the power supply；
The control terminal of 13rd driving tube, the 13rd driving tube is connected with the second end of the 20th resistance, and described
The first end of 13 driving tubes is connected with the second end of the 21st resistance；
The control terminal of 14th driving tube, the 14th driving tube is connected with the second end of the 20th resistance, and described
The first end of 14 driving tubes is connected with the second end of the 13rd driving tube, the second termination of the 14th driving tube
Ground；
The first end of 22nd resistance, the 22nd resistance is connected with the second end of the 13rd driving tube, described
The second end of 22nd resistance is connected with the control terminal of the third switching tube.
17. the scrubbing brush driving device of dust catcher as claimed in claim 16, which is characterized in that the detection module includes：
First detection sub-module, first detection sub-module are connected with first output end, for generating the first detection knot
Fruit；
Second detection sub-module, second detection sub-module are connected with the second output terminal, for generating the second detection knot
Fruit；
Decision submodule, for generating scrubbing brush insert state detection knot according to first testing result and the second testing result
Fruit.
18. the scrubbing brush driving device of dust catcher as claimed in claim 16, which is characterized in that further include：
The 5th diode being connected between first output end and second output terminal.
19. the scrubbing brush driving device of dust catcher as claimed in claim 17, which is characterized in that the first detection sub-module packet
It includes：
The cathode of 6th diode, the 6th diode is connected with first output end；
The first end of 23rd resistance, the 23rd resistance is connected with the power supply；
The first end of 24th resistance, the 24th resistance is connected with the second end of the 23rd resistance；
The first end of 25th resistance, the 25th resistance is connected with the second end of the 24th resistance, and described second
The second end of 15 resistance is grounded；
The first end of 26th resistance, the 26th resistance is connected with the power supply；
The control terminal of 15th driving tube, the 15th driving tube is connected with the second end of the 24th resistance, described
The first end of 15th driving tube is connected with the second end of the 26th resistance, the second termination of the 15th driving tube
Ground, wherein the second end of the 26th resistance is the output end of first detection sub-module.
20. the scrubbing brush driving device of dust catcher as claimed in claim 17, which is characterized in that the second detection sub-module packet
It includes：
Second sampling resistor, second sampling resistor are used to detect the electric current of the third switching tube and generate sample rate current；
Second operational amplifier, the second operational amplifier are connected with second sampling resistor, for sampling electricity
Stream is amplified, wherein generates second testing result according to the sample rate current.
21. the scrubbing brush driving device of dust catcher as claimed in claim 20, which is characterized in that second detection sub-module is also
Including：
Second filter, the second filter are connected with the second operational amplifier, for amplified sample rate current
It is filtered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810868604.6A CN108742310B (en) | 2018-08-02 | 2018-08-02 | Floor brush driving device of dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810868604.6A CN108742310B (en) | 2018-08-02 | 2018-08-02 | Floor brush driving device of dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108742310A true CN108742310A (en) | 2018-11-06 |
| CN108742310B CN108742310B (en) | 2023-08-08 |
Family
ID=63968553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810868604.6A Active CN108742310B (en) | 2018-08-02 | 2018-08-02 | Floor brush driving device of dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108742310B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112294185A (en) * | 2019-07-31 | 2021-02-02 | 苏州市春菊电器有限公司 | Double detection circuit and method for ground brush load current and motor rotating speed of dust collector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103572A (en) * | 1993-06-25 | 1995-06-14 | 沃维克股份有限公司 | Suction floor cleaner, especially adaptor and details of electric suction cleaner |
| CN203424910U (en) * | 2013-09-18 | 2014-02-12 | 吴臣 | Multifunctional shoe-brushing machine |
| CN104705993A (en) * | 2015-03-25 | 2015-06-17 | 浙江巨力电机成套设备有限公司 | Single-power and dual-drive reciprocating brush device |
| CN205374692U (en) * | 2015-09-08 | 2016-07-06 | 王军 | Aircraft battery power shows and alarm device |
| CN105867512A (en) * | 2016-06-02 | 2016-08-17 | 苏州普发科技有限公司 | Low-power-consumption ground brush detecting circuit for lithium battery dust collector |
-
2018
- 2018-08-02 CN CN201810868604.6A patent/CN108742310B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103572A (en) * | 1993-06-25 | 1995-06-14 | 沃维克股份有限公司 | Suction floor cleaner, especially adaptor and details of electric suction cleaner |
| CN203424910U (en) * | 2013-09-18 | 2014-02-12 | 吴臣 | Multifunctional shoe-brushing machine |
| CN104705993A (en) * | 2015-03-25 | 2015-06-17 | 浙江巨力电机成套设备有限公司 | Single-power and dual-drive reciprocating brush device |
| CN205374692U (en) * | 2015-09-08 | 2016-07-06 | 王军 | Aircraft battery power shows and alarm device |
| CN105867512A (en) * | 2016-06-02 | 2016-08-17 | 苏州普发科技有限公司 | Low-power-consumption ground brush detecting circuit for lithium battery dust collector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112294185A (en) * | 2019-07-31 | 2021-02-02 | 苏州市春菊电器有限公司 | Double detection circuit and method for ground brush load current and motor rotating speed of dust collector |
| CN112294185B (en) * | 2019-07-31 | 2024-03-15 | 苏州市春菊电器有限公司 | Dual-detection circuit and method for ground brush load current and motor rotation speed of dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108742310B (en) | 2023-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106961095B (en) | Current foldback circuit and air conditioner | |
| CN104116139A (en) | Electronic cigarette | |
| CN209134044U (en) | A kind of short-circuit protection circuit and electronic product | |
| CN207135078U (en) | One kind enters water detection electronic switch | |
| CN108008322A (en) | The detection method and circuit of multiple power supplies | |
| CN108742310A (en) | The scrubbing brush driving device of dust catcher | |
| CN107863911A (en) | A kind of isolated high power three-phase brushless motor driver module of numeral | |
| CN101364730B (en) | Input voltage protection circuit | |
| CN206805342U (en) | A kind of sequential control circuit | |
| CN209003821U (en) | The scrubbing brush driving device of dust catcher | |
| CN108063435A (en) | Intelligent power module, controller of air conditioner and air conditioner | |
| CN107834634A (en) | A kind of charging current limiter circuit for energy-storage battery group management system and the energy-storage battery group management system comprising charging current limiter circuit | |
| CN205829189U (en) | A kind of low-tension unit synchronous device | |
| CN207234387U (en) | A kind of integrated form circuit of battery partial volume | |
| CN205883038U (en) | Current foldback circuit and have display screen of this circuit | |
| CN206559098U (en) | A kind of lithium battery USB quick charges manage circuit | |
| CN104332945B (en) | High-speed figure output circuit and integrated circuit with overcurrent protection | |
| CN201571006U (en) | Brake unit | |
| CN201903575U (en) | Direct current detection circuit and inverter air-conditioner applying same | |
| CN209003820U (en) | The scrubbing brush driving device of dust catcher | |
| CN107947771A (en) | A kind of IGBT protection circuit | |
| CN209003819U (en) | The scrubbing brush driving device of dust catcher | |
| CN209448425U (en) | A kind of three-phase anti-misconnection circuit and corresponding air-conditioning | |
| CN209105034U (en) | Voltage type PWM comparator and DC/DC converter | |
| CN101707462B (en) | Braking unit and IGBT module protection method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |