CN107042492A - Power tool system and its Motor Rotating Speed Control System - Google Patents
Power tool system and its Motor Rotating Speed Control System Download PDFInfo
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- CN107042492A CN107042492A CN201610079320.XA CN201610079320A CN107042492A CN 107042492 A CN107042492 A CN 107042492A CN 201610079320 A CN201610079320 A CN 201610079320A CN 107042492 A CN107042492 A CN 107042492A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/006—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/10—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving electrical means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The present invention relates to a kind of power tool system and its voltage revolution speed control system.The Motor Rotating Speed Control System, the rotating speed for controlling power tool motor, frequency converter and motor connection, Motor Rotating Speed Control System include main switch, speed governing element and frequency converter, and main switch is connected with frequency converter, start for controlled motor and close；Speed governing element is arranged on power tool, it is connected with frequency converter, adjust speed governing element, speed governing element exports speed-regulating signal, and frequency converter receives speed-regulating signal, and desired driving frequency and driving voltage are obtained according to speed-regulating signal, and according to itself and current driving frequency and the comparative result of driving voltage, control signal, then motor of the output control signal to power tool are generated, motor is adjusted to corresponding rotating speed according to the control signal.Above-mentioned power tool system and its voltage revolution speed control system, can not only realize the regulation to the rotating speed of motor, to adapt to the operating mode of different rotating speeds demand, and user need not move back and forth, and reduce potential safety hazard.
Description
Technical field
The present invention relates to power tool technical field, more particularly to a kind of Motor Rotating Speed Control System and have
The power tool system of the Motor Rotating Speed Control System.
Background technology
Power tool, such as frequency conversion angle grinder, in use, in order to meet the multi gear rotating speed of real work
Demand is, it is necessary to which the rotating speed of power tool is adjusted.
Usually, control that the rotating speed of the motor of power tool is adjusted by variable frequency power controller, move
Power instrument and variable frequency power controller are connected by power line, pass through the operation interface on variable frequency power controller
Carry out the rotating speed of controlled motor.And variable frequency power controller generally with power tool relatively far apart, in power tool
In the course of work, user needs to move back and forth regulation motor rotating speed, relatively more inconvenient.
The content of the invention
Based on this, it is necessary to the rotating speed problem of the motor of regulation power tool need not be moved back and forth for user,
A kind of Motor Rotating Speed Control System and the power tool system with the Motor Rotating Speed Control System are provided.
A kind of Motor Rotating Speed Control System, for control power tool motor rotating speed described in frequency converter and institute
Motor connection is stated, wherein, the Motor Rotating Speed Control System includes：
Main switch, the main switch is connected with the frequency converter, and the main switch is arranged on the power tool
On, the main switch is used for the startup and closing for controlling the motor；
Speed governing element, the speed governing element is arranged on the power tool, and the speed governing element is used to export
Speed-regulating signal；And
Frequency converter, the frequency converter is connected with the speed-regulating switch and the motor respectively, the frequency converter
For receiving the speed-regulating signal, and control the rotating speed of the motor,
Wherein, by adjusting the speed governing element, the speed governing element exports speed-regulating signal；The frequency converter
The speed-regulating signal is received, desired driving frequency and driving voltage are obtained according to the speed-regulating signal, according to
Desired driving frequency and driving voltage and current driving frequency and the comparative result of driving voltage, generation control
The control signal is transferred to the motor by signal processed, the frequency converter, and the motor is according to the control
Signal is adjusted to corresponding rotating speed.
In one of the embodiments, the Motor Rotating Speed Control System also includes control panel, the control panel
It is arranged in the power tool, the control panel is connected with the speed governing element, and the control panel and institute
Frequency converter connection is stated, the control panel is used for the speed-regulating signal for receiving the speed governing element output, adjusted to described
Fast signal is handled, and the speed-regulating signal after the processing is transferred into the frequency converter.
In one of the embodiments, the control panel includes drop voltage module and control process module, described
Drop voltage module is connected with the control process module, and the drop voltage module is used to provide voltage to the control
Processing module processed, the control process module is connected with the speed governing element, and the control process module bag
Output port is included, the output port is connected with the frequency converter, the control process module is used to receive institute
The speed-regulating signal of speed governing element output is stated, the speed-regulating signal is handled, rate signal is obtained, and will
The rate signal is transferred to the frequency converter.
In one of the embodiments, the drop voltage module includes rectifier and voltage-stablizer, the rectifier
First end and the second end be connected respectively with power supply, the 3rd end of rectifier ground connection, the rectifier
4th end is connected with one end of the voltage-stablizer, and the other end of the voltage-stablizer connects with the control process module
Connect.
In one of the embodiments, the speed governing element switchs for variable resistance type.
In one of the embodiments, the variable resistance type switch is vr speed-regulating switch or the current potential with toggle
Device.
In one of the embodiments, the speed governing element is rotary coding switch.
In one of the embodiments, the frequency converter includes sampling unit, is connected with the use unit
Converting unit and the amplifying unit being connected with the converting unit, the use unit are used to receive the tune
The signal of fast element transmission, the converting unit is used to obtain desired driving frequency according to the speed governing element
And driving voltage, and according to the desired driving frequency and driving voltage and current driving frequency and driving
The comparative result of voltage, obtains driving pulse-width signal, the amplifying unit is used for the driving pulsewidth
Modulated signal is amplified and is transferred to the motor.
A kind of power tool system, the power tool system includes power tool, and the power tool includes
Motor and housing, wherein, the power tool also includes above-mentioned Motor Rotating Speed Control System, the main switch
It is respectively mounted on the housing with the speed governing element, the main switch becomes with the speed governing element with described
Frequency device is connected, and the motor is connected with the frequency converter.
In one of the embodiments, the main switch is respectively mounted on the housing with the speed governing element
At the position of holding.
Above-mentioned Motor Rotating Speed Control System and the power tool system with the Motor Rotating Speed Control System, pass through
Speed governing element and main switch is set to realize the regulation to motor speed, main switch is connected with frequency converter, and is become
Frequency device and power supply connection, the startup and closing of main switch controlled motor, speed governing element are arranged on power tool,
And speed governing element and frequency converter connection, speed governing element is adjusted, speed governing element exports speed-regulating signal to frequency converter,
Frequency converter receives the speed-regulating signal, and obtains desired driving frequency and driving voltage according to the speed-regulating signal,
And according to the desired driving frequency and driving voltage and current driving frequency and the comparison knot of driving voltage
Really, control signal is generated, then exports motor of the control signal to power tool, motor is believed according to the control
Corresponding rotating speed number is adjusted to, speed governing element is arranged on power tool, and user need to be only operated on power tool
Main switch and speed governing element, the regulation to the rotating speed of motor is can be achieved with, to adapt to different rotating speeds demand
Operating mode, and user need not move back and forth, and reduce potential safety hazard.
Brief description of the drawings
Fig. 1 is the structural representation of the Motor Rotating Speed Control System of an embodiment；
Fig. 2 is the structural representation of the Motor Rotating Speed Control System of another embodiment.
Embodiment
As shown in figure 1, the Motor Rotating Speed Control System 100 of an embodiment includes main switch 110, speed governing element
120 and frequency converter 130.Motor Rotating Speed Control System 100 is used for the rotating speed for controlling the motor 200 of power tool,
Frequency converter 130 and motor 200 are connected.
Specifically, in the present embodiment, power tool is frequency conversion angle grinder, and motor 200 is three phase electric machine.
Main switch 110 and frequency converter 130 are connected, frequency converter 130 and power supply connection, three extractions of three phase electric machine
U, V and W connection corresponding with three ports U, V and W of frequency converter 130 respectively are held, main switch is closed
110, the controlled motor 200 of frequency converter 130 starts, and opens main switch 110, the controlled motor 200 of frequency converter 130
It is stopped.
Speed governing element 120 is arranged on power tool, and speed governing element 120 and frequency converter 130 are connected, speed governing
Element 120 is used to export speed-regulating signal.Speed governing element 120 exports speed-regulating signal to frequency converter 130, frequency converter
130 obtain desired driving frequency and driving voltage according to the speed-regulating signal, further according to the desired driving frequency
With driving voltage and current driving frequency and the comparative result of driving voltage, control signal is generated, then will control
Signal processed is sent to motor 200, and motor 200 adjusts its rotating speed to analog value according to the control signal.
In the present embodiment, frequency converter 130 include sampling unit, the converting unit that is connected with sampling unit with
And the amplifying unit being connected with converting unit.Sampling unit is used for the signal for receiving the transmission of speed governing element 120.
The signal that converting unit is used to be received according to sampling unit obtains desired driving frequency and driving voltage, and root
According to the desired driving frequency and the comparative result of driving voltage and current driving frequency and driving voltage, obtain
To driving pulse-width signal.Amplifying unit is used to the driving pulse-width signal is amplified and is transferred to
Motor 200.
In the present embodiment, as can be known from Fig. 1, speed governing element 120 is rotary coding switch.
When speed governing element 120 is rotary coding switch, the rotary coding switch includes the first terminal, second
Terminal and third terminal, the first terminal and Second terminal are connected with frequency converter 130, third terminal ground connection,
Rotate the rotary coding switch so that the pulse signal between the first terminal and Second terminal has 90 degree of phase
Difference, and the sampling unit that the pulse signal is sent in frequency converter 130, frequency converter 130 collects the pulse
Signal, converting unit receives the pulse signal, and the pulse signal is handled, and is slowed down or accelerated
Signal, and according to the deceleration or signal for faster, obtain desired driving frequency and driving voltage.Will be desired
Driving frequency and driving pressure and current driving frequency and driving voltage are compared, to desired driving frequency
Rate is integrated computing, obtains current desired driving angle, the driving angle and desired driving voltage warp
The driving pulse-width signal of motor is obtained after ovennodulation.Amplifying unit carries out the driving pulse-width signal
Power amplification, obtains high pressure and high current signal, and the high pressure and high current signal are transferred into motor 200.
The stator coil acting motor 200 that the high pressure and high current signal pass through motor 200 so that motor 200
Adjustment of rotational speed to analog value.
By the way that speed governing element 120 is arranged on power tool, user need to only operate the master on power tool
Switch 110 and speed governing element 120, can be achieved with the regulation of the rotating speed to motor 200, to adapt to different rotating speeds
The operating mode of demand, and user need not move back and forth, and reduce potential safety hazard.
In other embodiments, speed governing element 120 can also be variable resistance type switch.
When speed governing element 120 be variable resistance type switch when, variable resistance type switch include variable resistance with
Button, variable resistance includes first end, the second end and sliding end, first end, the second end and sliding end
It is connected respectively with frequency converter 130, and sliding end and button connects, button is for sliding the sliding end.Pass through
Button slides the sliding end, produces different resistances, and then produces different voltages, and frequency converter 130 is received
To the voltage signal, the voltage signal is handled, control signal is converted into, then the control is believed
Number it is sent to motor 200, the rotating speed of regulation motor 200.
It should be noted that variable resistance type switch can be vr speed-regulating switch, potentiometer with toggle etc..
Speed governing element 120 and frequency converter 130 in above-mentioned Motor Rotating Speed Control System 100 are directly connected to, no
Pipe speed governing element 120 is that variable resistance type is switched, or Hall sensor or pulse code switch etc., is had
Many lines connect to connect with frequency converter 130, so that the connection between frequency converter 130 and power tool
Line is relatively more.
In order to reduce the connecting line between frequency converter 130 and power tool, as shown in Fig. 2 another embodiment
Motor Rotating Speed Control System 400 include main switch 410, speed governing element 420, frequency converter 430 and control
Plate 440.Motor Rotating Speed Control System 400 is used for the rotating speed frequency converter 430 for controlling the motor 200 of power tool
Connected with motor 200.
Specifically, in the present embodiment, power tool is frequency conversion angle grinder, and motor 200 is three phase electric machine.
Main switch 410 and frequency converter 430 are connected, frequency converter 430 and power supply connection, three extractions of three phase electric machine
End three ports connection corresponding with frequency converter 430 respectively, closes main switch 410, frequency converter 430 is controlled
Motor 200 starts, and opens main switch 410, and the controlled motor 200 of frequency converter 430 is stopped.
Speed governing element 420 is arranged on power tool, and control panel 440 is arranged in the power tool, control
Making sheet 440 is connected with speed governing element 420, and control panel 440 is connected with frequency converter 430, control panel 440
Speed-regulating signal for receiving the output of speed governing element 420, carries out decoding process to speed-regulating signal, obtains speed
Signal, the rate signal is acceleration or deceleration signal, and the rate signal is transferred in frequency converter 430
Processor in processor, frequency converter 430 receives the rate signal, and according to the rate signal regulation motor
200 rotating speed.
In the present embodiment, control panel 440 includes drop voltage module 441 and control process module 442, drop electricity
Die block 441 and control process module 442 are connected, and one end of drop voltage module 441 is connected with power switch,
Power switch is closed there is provided voltage, is depressured by dropping 441 pairs of voltages of voltage module, and drop voltage
Module 441 is powered to control process module 442.The voltage that power supply is provided is 15V, for control process
Module 442, the voltage that power supply is directly fed is of a relatively high, so as to need to be depressured into the voltage, is dropped
To 5V.
Wherein, drop voltage module 441 includes rectifier and voltage-stablizer, the first end of rectifier and the second end point
It is not connected with power supply, the 3rd end ground connection of rectifier, the 4th end of rectifier and one end of voltage-stablizer are connected,
The other end of voltage-stablizer is connected with control process module 442, the 15V voltages of power supply output by rectifier and
Voltage-stablizer, voltage is down to 5V, and the other end of voltage-stablizer is connected with control process module 442, so as to control
Processing module 442 processed provides stable 5V voltages.
In addition, speed governing element 420 and control process module 442 are connected, the output speed governing letter of speed governing element 420
Number control process module 442 is given, 442 pairs of speed-regulating signals of control process module carry out decoding process, obtain speed
Spend signal, then processor rate signal being sent to by connection in frequency converter 430, processor according to
The rotating speed of the control signal regulation motor 200 is to analog value.
In the present embodiment, speed governing element 420 is rotary coding switch.When speed governing element 420 is compiled for rotation
During code switch, the rotary coding switch include the first terminal, Second terminal and third terminal, the first terminal and
Second terminal is connected with control process module 442, third terminal ground connection.The rotary coding switch is rotated,
Pulse signal between the first terminal and Second terminal have 90 degree phase difference and output voltage signal to control at
Module 442 is managed, 442 pairs of pulse signals of control process module carry out decoding process, obtain acceleration or deceleration letter
Number.The acceleration or deceleration signal is transferred in frequency converter 430 by control process module 442 by connection
Using unit.
The acceleration or deceleration signal is received using unit.Converting unit is according to the acceleration or deceleration signal and frequency conversion
Device 430 and current driving frequency and driving voltage, obtain desired driving frequency and driving voltage.To the phase
The driving frequency of prestige is integrated computing, obtains current desired driving angle, the driving angle and desired
Driving voltage obtains the driving pulse-width signal of motor after ovennodulation.Amplifying unit adjusts the driving pulsewidth
Signal processed carries out power amplification, obtains high pressure and high current signal, and the high pressure and high current signal are transmitted
To motor 200.The high pressure and high current signal are done work motor 200 by the stator coil of motor 200,
So that the adjustment of rotational speed of motor 200 is to analog value.
In other embodiments, speed-regulating switch 420 can also be opened for variable resistance type switch, variable resistance type
Pass includes variable resistance and button, and variable resistance includes first end, the second end and sliding end, first
End, the second end and sliding end are connected with control process module 442 respectively, and sliding end and button connects, are pressed
Button is used to slide the sliding end.The sliding end is slided by button, different resistances are produced, and then produce not
Same voltage, control process module 442 receives the magnitude of voltage, the magnitude of voltage is handled, by its turn
Control signal is changed to, then the control signal is sent to the processor of frequency converter 300, the place of frequency converter 300
Manage the rotating speed that device controls to adjust motor 200.
It should be noted that variable resistance type switch can be vr speed-regulating switch, potentiometer with toggle etc..
By the way that speed governing element 420 is arranged on power tool, user need to only operate the master on power tool
Switch 410 and speed governing element 420, can be achieved with the regulation of the rotating speed to motor 200, to adapt to different rotating speeds
The operating mode of demand, and user need not move back and forth, and reduce potential safety hazard.In addition, also by power work
Control panel 430 is set in tool, the radical of the connecting line between power tool and frequency converter 430 is reduced, it is more sharp
In management, potential safety hazard is also reduced.
The power tool system of one embodiment, including the power tool power tool include above-mentioned motor speed
Control system, motor and housing, Motor Rotating Speed Control System include main switch, speed governing element and frequency converter,
Main switch and speed governing element are arranged on housing, it is preferred that main switch is installed on housing with speed governing element
Be used for hold position at, beneficial to operator operate.Main switch is connected with speed governing element with frequency converter,
Motor is connected with frequency converter.Speed governing element is adjusted, speed governing element exports speed-regulating signal to frequency converter, frequency converter
Receive to the speed-regulating signal.According to the speed-regulating signal, desired driving frequency and driving voltage are obtained, according to
Desired driving frequency and driving voltage and current driving frequency and the comparative result of driving voltage, generation control
Signal processed.Control signal is transferred to motor by frequency converter, and motor is adjusted to corresponding rotating speed according to control signal.
In addition, frequency converter includes sampling unit, the converting unit and and converting unit that are connected with using unit
The amplifying unit of connection, the signal that the signal for being used for speed governing element transmission using unit is transmitted.Converting unit is used
In obtaining desired driving frequency and driving voltage according to the signal of speed governing element transmission, according to desired driving
Frequency and driving voltage and current driving frequency and the comparative result of driving voltage, obtain driving pulsewidth modulation
Signal.Amplifying unit is used to driving pulse-width signal being amplified and is transferred to motor, controls to adjust electricity
The rotating speed of machine.
In another embodiment, Motor Rotating Speed Control System also includes control panel, and control panel is arranged on power work
In tool, control panel is connected with speed governing element, and control panel is connected with frequency converter, and control panel is used to receive speed governing
The speed-regulating signal of element output, carries out decoding process to speed-regulating signal, obtains speed signal, and by the speed
The processor that degree signal is transferred in processor in frequency converter, frequency converter receives the rate signal, and according to
The rotating speed of the rate signal regulation motor.
It should be noted that speed governing element can be variable resistance type switch or rotary coding switch etc..
Above-mentioned Motor Rotating Speed Control System and the power tool system with the Motor Rotating Speed Control System, pass through
Speed governing element and main switch is set to realize the regulation to motor speed, main switch is connected with frequency converter, and is become
Frequency device and power supply connection, the startup and closing of main switch controlled motor, speed governing element are arranged on power tool,
And speed governing element and frequency converter connection, speed governing element is adjusted, speed governing element exports speed-regulating signal to frequency converter,
Frequency converter receives the speed-regulating signal, and obtains desired driving frequency and driving voltage according to the speed-regulating signal,
And according to the desired driving frequency and driving voltage and current driving frequency and the comparison knot of driving voltage
Really, control signal is generated, then exports motor of the control signal to power tool, motor is believed according to the control
Corresponding rotating speed number is adjusted to, speed governing element is arranged on power tool, and user need to be only operated on power tool
Main switch and speed governing element, the regulation to the rotating speed of motor is can be achieved with, to adapt to different rotating speeds demand
Operating mode, and user need not move back and forth, and reduce potential safety hazard.
Each technical characteristic of embodiment described above can be combined arbitrarily, not right to make description succinct
The all possible combination of each technical characteristic in above-described embodiment is all described, as long as however, these skills
Contradiction is not present in the combination of art feature, is all considered to be the scope of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed,
But can not therefore it be construed as limiting the scope of the patent.It should be pointed out that for this area
For those of ordinary skill, without departing from the inventive concept of the premise, some deformations can also be made and changed
Enter, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended power
Profit requires to be defined.
Claims (10)
1. a kind of Motor Rotating Speed Control System, the rotating speed of the motor for controlling power tool, it is characterised in that
The Motor Rotating Speed Control System includes：
Main switch, the main switch is connected with the frequency converter, and the main switch is arranged on the power tool
On, the main switch is used for the startup and closing for controlling the motor；
Speed governing element, the speed governing element is arranged on the power tool, and the speed governing element is used to export
Speed-regulating signal；And
Frequency converter, the frequency converter is connected with the speed-regulating switch and the motor respectively, the frequency converter
For receiving the speed-regulating signal, and control the rotating speed of the motor,
Wherein, by adjusting the speed governing element, the speed governing element exports speed-regulating signal；The frequency converter
The speed-regulating signal is received, desired driving frequency and driving voltage are obtained according to the speed-regulating signal, according to
Desired driving frequency and driving voltage and current driving frequency and the comparative result of driving voltage, generation control
The control signal is transferred to the motor by signal processed, the frequency converter, and the motor is according to the control
Signal is adjusted to corresponding rotating speed.
2. Motor Rotating Speed Control System according to claim 1, it is characterised in that the motor speed
Control system also includes control panel, and the control panel is arranged in the power tool, the control panel and institute
The connection of speed governing element is stated, and the control panel is connected with the frequency converter, the control panel is used to receive described
The speed-regulating signal of speed governing element output, is handled the speed-regulating signal, and by the speed governing after the processing
Signal is transferred to the frequency converter.
3. Motor Rotating Speed Control System according to claim 2, it is characterised in that the control panel bag
Drop voltage module and control process module are included, the drop voltage module is connected with the control process module, institute
Stating drop voltage module is used to provide voltage to the control process module, and the control process module is adjusted with described
Fast element connection, and the control process module includes output port, the output port and the frequency converter
Connection, the control process module is used for the speed-regulating signal for receiving the speed governing element output, to the speed governing
Signal is handled, and obtains rate signal, and the rate signal is transferred into the frequency converter.
4. Motor Rotating Speed Control System according to claim 3, it is characterised in that the drop voltage-mode
Block includes rectifier and voltage-stablizer, and the first end of the rectifier and the second end are connected with power supply respectively, described
The 3rd end ground connection of rectifier, the 4th end of the rectifier is connected with one end of the voltage-stablizer, described steady
The other end of depressor is connected with the control process module.
5. the Motor Rotating Speed Control System according to any one of claim 1-4, it is characterised in that institute
Speed governing element is stated to switch for variable resistance type.
6. Motor Rotating Speed Control System according to claim 5, it is characterised in that the variable resistor
Formula switch is vr speed-regulating switch or the potentiometer with toggle.
7. the Motor Rotating Speed Control System according to any one of claim 1-4, it is characterised in that institute
Speed governing element is stated for rotary coding switch.
8. Motor Rotating Speed Control System according to claim 1, it is characterised in that the frequency converter bag
Include sampling unit, the converting unit being connected with the use unit and the amplification being connected with the converting unit
Unit, the use unit is used for the signal for receiving the speed governing element transmission, and the converting unit is used for root
Desired driving frequency and driving voltage are obtained according to the signal of the speed governing element transmission, and is expected according to described
Driving frequency and driving voltage and current driving frequency and driving voltage comparative result, obtain drive arteries and veins
Wide modulated signal, the amplifying unit is used to the driving pulse-width signal being amplified and is transferred to institute
State motor.
9. a kind of power tool system, the power tool system includes power tool, the power tool bag
Include motor and housing, it is characterised in that the power tool is also included any one of claim 1-8
Motor Rotating Speed Control System, the main switch is respectively mounted on the housing with the speed governing element, the master
Switch is connected with the speed governing element with the frequency converter, and the motor is connected with the frequency converter.
10. power tool system according to claim 9, it is characterised in that the main switch and institute
State at the position for being used to hold that speed governing element is respectively mounted on the housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610079320.XA CN107042492A (en) | 2016-02-04 | 2016-02-04 | Power tool system and its Motor Rotating Speed Control System |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610079320.XA CN107042492A (en) | 2016-02-04 | 2016-02-04 | Power tool system and its Motor Rotating Speed Control System |
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| CN201610079320.XA Pending CN107042492A (en) | 2016-02-04 | 2016-02-04 | Power tool system and its Motor Rotating Speed Control System |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161671A (en) * | 2017-12-22 | 2018-06-15 | 宁波星瑞克中空铝条有限公司 | A kind of hollow glass aluminum strip grinding device |
| CN114301335A (en) * | 2021-12-30 | 2022-04-08 | 苏州汇川控制技术有限公司 | Motor rotating speed safety control device, system and method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123158A (en) * | 1996-08-03 | 2000-09-26 | Wacker-Werke Gmbh & Co., Kg | Electric tool with ducted cooled control electronics |
| DE102005060645A1 (en) * | 2005-12-19 | 2007-06-21 | Robert Bosch Gmbh | Drive device for e.g. high frequency power tool machine, has frequency converter for controlling alternating-current motor speed and/or output, and adapter that is connected to frequency converter |
| CN201263135Y (en) * | 2006-03-03 | 2009-06-24 | 布莱克和戴克公司 | Non-cable electric tool with multi-speed transmission and constant speed in light torquemoment range |
| CN201304516Y (en) * | 2008-10-27 | 2009-09-09 | 青岛地恩地机电科技股份有限公司 | Variable frequency speed regulating drill lathe |
| CN101814878A (en) * | 2009-02-19 | 2010-08-25 | 中山大洋电机股份有限公司 | DC brushless motor controller integrating various input signal interface circuits and control method thereof |
| CN102581343A (en) * | 2011-01-05 | 2012-07-18 | 株式会社牧田 | Electric power tool |
| CN203691207U (en) * | 2013-09-18 | 2014-07-02 | 浙江德玛电气有限公司 | External low voltage frequency converter of electric tool |
| CN204053991U (en) * | 2014-09-03 | 2014-12-31 | 浙江德玛电气有限公司 | The cable connection structure of electric tool and external frequency converter |
| CN204597752U (en) * | 2015-06-02 | 2015-08-26 | 正阳实业投资有限公司 | Hand-hold type frequency conversion type brushless electric tool |
| JP2015188997A (en) * | 2014-03-29 | 2015-11-02 | 日立工機株式会社 | Electric tool |
| CN204777985U (en) * | 2015-06-19 | 2015-11-18 | 贸联电子（武汉）有限公司 | Automatic admission machine |
-
2016
- 2016-02-04 CN CN201610079320.XA patent/CN107042492A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123158A (en) * | 1996-08-03 | 2000-09-26 | Wacker-Werke Gmbh & Co., Kg | Electric tool with ducted cooled control electronics |
| DE102005060645A1 (en) * | 2005-12-19 | 2007-06-21 | Robert Bosch Gmbh | Drive device for e.g. high frequency power tool machine, has frequency converter for controlling alternating-current motor speed and/or output, and adapter that is connected to frequency converter |
| CN201263135Y (en) * | 2006-03-03 | 2009-06-24 | 布莱克和戴克公司 | Non-cable electric tool with multi-speed transmission and constant speed in light torquemoment range |
| CN201304516Y (en) * | 2008-10-27 | 2009-09-09 | 青岛地恩地机电科技股份有限公司 | Variable frequency speed regulating drill lathe |
| CN101814878A (en) * | 2009-02-19 | 2010-08-25 | 中山大洋电机股份有限公司 | DC brushless motor controller integrating various input signal interface circuits and control method thereof |
| CN102581343A (en) * | 2011-01-05 | 2012-07-18 | 株式会社牧田 | Electric power tool |
| CN203691207U (en) * | 2013-09-18 | 2014-07-02 | 浙江德玛电气有限公司 | External low voltage frequency converter of electric tool |
| JP2015188997A (en) * | 2014-03-29 | 2015-11-02 | 日立工機株式会社 | Electric tool |
| CN204053991U (en) * | 2014-09-03 | 2014-12-31 | 浙江德玛电气有限公司 | The cable connection structure of electric tool and external frequency converter |
| CN204597752U (en) * | 2015-06-02 | 2015-08-26 | 正阳实业投资有限公司 | Hand-hold type frequency conversion type brushless electric tool |
| CN204777985U (en) * | 2015-06-19 | 2015-11-18 | 贸联电子（武汉）有限公司 | Automatic admission machine |
Non-Patent Citations (1)
| Title |
|---|
| 阎士琦, 中国电力出版社, pages: 283 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161671A (en) * | 2017-12-22 | 2018-06-15 | 宁波星瑞克中空铝条有限公司 | A kind of hollow glass aluminum strip grinding device |
| CN114301335A (en) * | 2021-12-30 | 2022-04-08 | 苏州汇川控制技术有限公司 | Motor rotating speed safety control device, system and method |
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