CN207753642U - A kind of drive system of DC brushless motor - Google Patents
A kind of drive system of DC brushless motor Download PDFInfo
- Publication number
- CN207753642U CN207753642U CN201721864142.8U CN201721864142U CN207753642U CN 207753642 U CN207753642 U CN 207753642U CN 201721864142 U CN201721864142 U CN 201721864142U CN 207753642 U CN207753642 U CN 207753642U
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- China
- Prior art keywords
- control panel
- drive system
- brushless motor
- driving plate
- circuit
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Abstract
A kind of drive system of DC brushless motor provided by the utility model, including control panel and driving plate, the control panel includes control unit and power conversion unit, the driving plate includes electric-motor drive unit, control panel is connected with driving plate by connecting line circuit, and the control panel is by connecting line to driving plate input control signal and direct current.The beneficial effects of the utility model:It is easy assembly, it is convenient and practical, and reduce loss and cost.
Description
Technical field
The utility model is related to the DC brushless motor field of smoke exhaust ventilator, especially a kind of DC brushless motor.
Background technology
DC brushless motor replaces alternating current generator to be energy-saving and environment-friendly main trend.Traditionally motor is machinery industry, but straight
Stream brushless motor needs the driving of electron electric power part that could work, that is, machinery industry and electronics industry is needed to combine.Which results in
The difficulty that DC brushless motor uses is promoted in the industry of part.Existing implementation is that the two is made in the same module
On, tentatively meet the market demand.But this mode is excessively inflexible, any one partial destruction must all replace entire module.And
And product development difficulty is big, needs to consider that details is more, causes the development cycle long and uncontrollable.
Invention content
For problem of the prior art, the embodiment of the utility model has and can solve the problems in background technology, is by such as
What lower technical solution was realized.
A kind of drive system of DC brushless motor, including control panel and driving plate, the control panel include control unit
And power conversion unit, the driving plate include that electric-motor drive unit, control panel and driving plate are connected by connecting line circuit, institute
Control panel is stated by connecting line to driving plate input control signal and direct current.
The control panel includes the safety circuit, AC-DC conversion units, DC-DC conversion units of circuit connection, and being used for will
Alternating current is converted into multi-channel DC electricity output.
The control panel includes microcontroller, with electric-motor drive unit by connecting line traffic control connection, electric-motor drive unit
IPM circuit drives motors.
Further, the single chip circuit connects relay, the relay respectively with AC-DC conversion units, DC-DC
Conversion unit circuit connects, the direct current electricity output for controlling AC-DC conversion units, DC-DC conversion units, and the microcontroller is used
In sending control signals to relay.
The electric-motor drive unit further includes the buzzer being connect with single chip circuit, and buzzer is for alarming.
Preferably, the safety circuit includes the safety capacitance for filtering.
The advantageous effect of utility model：It is easy assembly, it is convenient and practical, and reduce loss and cost.It is at low cost, efficiency
Height accelerates industry conversion speed, improves economic results in society.
Description of the drawings
Fig. 1 is the wire structural schematic diagram of Tthe utility model system.
Fig. 2 be the utility model drive system circuit in MCU electrical block diagrams.
Fig. 3 be the utility model drive system circuit in driving circuit circuit diagram.
Fig. 4 be the utility model drive system circuit in current detection circuit figure.
Fig. 5 be the utility model drive system circuit in communication connection circuit diagram.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, a kind of drive system of DC brushless motor, including control panel and driving plate, the control panel packet
Control unit and power conversion unit are included, the driving plate includes electric-motor drive unit, and control panel and driving plate pass through connecting line
Circuit connects, and by connecting line to driving plate input control signal and direct current, connecting line can also be substituted for the control panel
Connection terminal is unified two pieces of circuit boards, control unit input control signal, power conversion unit input DC power.
Power conversion unit includes safety circuit, AC-DC conversion units, the DC-DC conversion units of circuit connection, is used for
Convert alternating current to multi-channel DC electricity output.
Control unit includes microcontroller, controls and connects with power conversion unit, and microcontroller is defeated to IPM circuits by connecting line
Enter and control signal, IPM circuits rotate according to control signal drive motor, adjust the direction of rotation, rotating speed and rotation time, circle
Number etc..
Single chip circuit connect relay, the relay respectively with AC-DC conversion units, DC-DC conversion unit circuits
Connection, the direct current electricity output for controlling AC-DC conversion units, DC-DC conversion units, the microcontroller is for sending control letter
Number arrive relay.
Electric-motor drive unit further includes the buzzer being connect with single chip circuit, and buzzer is for alarming.Safety circuit is
A kind of safety condenser network for filtering.
In specific embodiment of the utility model, driving plate can also be used alone, and direct current be accessed, by driving plate
Microcontroller motor is controlled, by microcontroller to IPM circuit input signals, rotated according to signal drive motor.
As shown in Figure 2-5, driving plate receives the external instruction sent, MCU connects by the way of both-way communication by terminal
Receive instruction after according to instruction send PWM wave to driving circuit, the amplified resultant voltage signal of driving circuit section export to
Direct current generator, to realize that motor rotates, direct current generator triple line is attached by terminal and U_OUT, V_OUT, W_OUT.
The input terminal of operational amplifier circuit is the signal adopted from motor output line, and MCU is output to by amplifier.
MCU is built-in without sensor FOC control algolithm softwares, and being calculated by power calculation software new should set speed
Degree synthesizes setting pwm signal using MCU internal hardwares and exports to driving chip, through the amplified synthesis of driving circuit section
Voltage signal is exported to direct current generator, to governing speed, and then controls the power of DC fan, so that power is leveled off to and is set work(
Rate realizes the control of power invariability.
MCU is the core of entire driving plate, is a chip for aiming at electric machine controller and numerical control power generation project, is integrated more
The enhanced PWM in road, with the Duty ratio control motor speed by controlling PWM；Chip interior also simultaneously integrated multi-channel high-precision,
High-speed ADC, analog comparator and multi-channel high-speed operational amplifier.
Driving circuit section is made of three half-bridge high pressure grid drive chips and 6 IGBT, and driving chip receives MCU's
PWM wave turns on and off IGBT, gives electrical-coil power supply, driving motor rotation；
Current detection circuit is made of three high-precision sampling resistors and an amplifier, and amplifier is by calculating amplification sampling
The voltage value that electrical resistance collection arrives, feeds back to MCU, the duty ratio for adjusting PWM, forms a closed loop.
It communicates coupling part and switch and speed-regulating signal is received by terminal line, MCU is supplied to make order-driven motor.
The technical solution of the utility model detaches motor drive module and power conversion module, the damage of any separate modular
It is bad only to need to change unitary part, reduce the cost of user.
Importantly, after motor drive module is independently of power module, motor manufacturer can be coordinated, be allowed to produce
DC brushless motor be easy to install and use as alternating current generator plus energy after motor drive module.In this way, electrical machinery plant gives birth to
The DC brushless motor of production can move towards market according to original alternating current generator marketing channel, this feature can accelerate industry conversion speed
Degree improves economic results in society.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of drive system of DC brushless motor, including control panel and driving plate, the control panel include control unit and
Power conversion unit, the driving plate includes that electric-motor drive unit, control panel and driving plate are connected by connecting line circuit, described
Control panel is by connecting line to driving plate input control signal and direct current.
2. the drive system of DC brushless motor according to claim 1, which is characterized in that the control panel, including electricity
Safety circuit, AC-DC conversion units, the DC-DC conversion units of road connection, it is defeated for converting alternating current to multi-channel DC electricity
Go out.
3. the drive system of DC brushless motor according to claim 2, which is characterized in that the control panel includes monolithic
Machine, with electric-motor drive unit by connecting line traffic control connection, the IPM circuit drives motors of electric-motor drive unit.
4. the drive system of DC brushless motor according to claim 3, which is characterized in that the single chip circuit connection
Relay, the relay are connect with AC-DC conversion units, DC-DC conversion unit circuits respectively, for controlling AC-DC conversions
The direct current electricity output of unit, DC-DC conversion units.
5. the drive system of DC brushless motor according to claim 4, which is characterized in that the microcontroller is for sending
Signal is controlled to relay.
6. the drive system of DC brushless motor according to claim 2, which is characterized in that the safety circuit includes using
In the safety capacitance of filtering.
7. the drive system of DC brushless motor according to claim 1, which is characterized in that the electric-motor drive unit is also
Include the buzzer being connect with single chip circuit, buzzer is for alarming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721864142.8U CN207753642U (en) | 2017-12-27 | 2017-12-27 | A kind of drive system of DC brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721864142.8U CN207753642U (en) | 2017-12-27 | 2017-12-27 | A kind of drive system of DC brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207753642U true CN207753642U (en) | 2018-08-21 |
Family
ID=63150729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721864142.8U Active CN207753642U (en) | 2017-12-27 | 2017-12-27 | A kind of drive system of DC brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207753642U (en) |
-
2017
- 2017-12-27 CN CN201721864142.8U patent/CN207753642U/en active Active
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