CN201854231U - Direct current brushless motor controller for bean milk machine - Google Patents
Direct current brushless motor controller for bean milk machine Download PDFInfo
- Publication number
- CN201854231U CN201854231U CN2010205315683U CN201020531568U CN201854231U CN 201854231 U CN201854231 U CN 201854231U CN 2010205315683 U CN2010205315683 U CN 2010205315683U CN 201020531568 U CN201020531568 U CN 201020531568U CN 201854231 U CN201854231 U CN 201854231U
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- China
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- brushless motor
- circuit module
- motor controller
- bean milk
- soy bean
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Abstract
The utility model discloses a direct current brushless motor controller for a bean milk machine, which comprises a rectifying circuit module, a current converter and a microcontroller singlechip circuit module, wherein the rectifying circuit module is used for converting alternating current voltage input into direct current voltage, the current converter is connected with a motor and is used for converting direct current output by the rectifying circuit module into three-phase voltage to drive the motor, and the microcontroller singlechip circuit module is used for driving the current converter, is connected with the current converter and further comprises a reverse electrodynamic potential detection circuit used for detecting the position of a motor rotor. The direct current brushless motor controller adopts the reverse electrodynamic potential detection circuit for detecting the position of the motor rotor, and the installation position space and the production cost are saved. In addition, an ST special direct current brushless motor is adopted for controlling the singlechip, and a circuit in special design is combined, so compared with the prior art, the controller has more stable and reliable performance, the position detection is more accurate and simpler, and the motor operation control range is wider.
Description
Technical field
The utility model relates to motor-driven and control field, relates in particular to a kind of DC brushless motor controller that is used on the small household appliances such as soy bean milk making machine, juice extractor.
Background technology
The motor for soymilk machine controller generally adopts the DC brushless motor controller of Hall element at present, the method of sort controller detection rotor position is the sensor method, promptly by rotor-position signal is converted to the signal of telecommunication, thereby conducting and the shutoff of commutation signal with the power device of control inverter is provided, thereby can controls the rotation of rotor.Sort controller requires very accurate to the installation site of transducer, alignment error will cause commutation inaccurate, have a strong impact on the machine operation quality, and increased production cost, and it is not suitable for motor and uses when high-speed cruising, because motor speed when high-speed cruising descends fast, even can burn motor and controller.
In addition, the present electric machine controller circuit ubiquity that soy bean milk making machine adopted can't carry out speed governing or the narrow problem of speed adjustable range to motor, causes motor speed sometimes fast and sometimes slow, not only influences refining pulp quality, and be unfavorable for the startup of motor and close, burn out motor easily.In addition, because improper, also can cause the controller performance instability to the selection of Electric Machine Control single-chip microcomputer, to problems such as the detection of position signalling are inaccurate.
The utility model content
The technical problems to be solved in the utility model is, provide a kind of and can realize stepless speed regulation control to motor speed, and structure is simple relatively, and cost is low, cost performance is high, has the more soya-bean milk brushless DC motor controller of high reliability and accuracy.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of DC brushless motor controller that is used for soy bean milk making machine is provided, comprises the rectification circuit module that is used for the alternating voltage input is changed into direct voltage; Link to each other with motor and be used for the direct current of described rectification circuit module output is changed into the converter that three-phase voltage comes drive motors; Be used to drive the microcontroller single chip circuit module of described converter, described microcontroller single chip circuit module links to each other with described converter; Described microcontroller single chip circuit module further comprises the counter electromotive force detection circuit that is used to detect motor rotor position.
The utility model is used for the DC brushless motor controller of soy bean milk making machine, also comprises linking to each other with described microcontroller single chip circuit module and being used to obtain external control signal and output feedback signal to realize the interface module of stepless speed regulation control.
The utility model is used for the DC brushless motor controller of soy bean milk making machine, described microcontroller single chip circuit module further comprises single-chip microcomputer and the peripheral circuit thereof that is used to control described converter and described motor, and described counter electromotive force detection circuit is arranged in described single-chip microcomputer.
The utility model is used for the DC brushless motor controller of soy bean milk making machine, and described rectification circuit module further comprises and is used for the alternating voltage input is converted into the transducer of direct voltage and links to each other with described single-chip microcomputer and described part direct voltage is carried out step-down is handled provides operating voltage with the chip of thinking circuit reduction voltage circuit.
The utility model is used for the DC brushless motor controller of soy bean milk making machine, described converter further comprises six power transistors that link to each other with described single-chip microcomputer by three chip for driving, and described power transistor is divided into upper arm and is connected described motor with underarm as the switch of control flows through motor coil.
The utility model is used for the DC brushless motor controller of soy bean milk making machine, described DC brushless motor controller links to each other with the motor three-phase coil through triple line by connector, and described triple line links to each other with the special-purpose back electromotive force port of described single-chip microcomputer by at least one series resistance respectively.
The utility model is used for the DC brushless motor controller of soy bean milk making machine, and described DC brushless motor controller is the electric machine controller that adopts frequency conversion speed open loop control mode.
The utility model is used for the DC brushless motor controller of soy bean milk making machine, and described single-chip microcomputer is the special DC brushless electric machine control single chip computer that six road pulse width modulating signals in the band dead band that hardware solidifies are arranged.
The beneficial effect that the utility model is used for the DC brushless motor controller of soy bean milk making machine is: the position that it obtains the dc brushless motor rotor by the three-phase back electromotive force of checking on the motor coil, abandon flimsy Hall element, saved space, installation site and production cost.In addition, adopt ST special DC brushless electric machine control single chip computer, in conjunction with the circuit of above-mentioned design, make described controller compared to existing technology, performance is more reliable and more stable, position probing is more accurate simply, control motor range of operation is wideer.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is according to theory diagram of the present utility model;
Fig. 2 is the circuit diagram according to the rectification circuit module of the utility model embodiment;
Fig. 3 is the circuit diagram according to the converter of the utility model embodiment;
Fig. 4 is the circuit diagram according to the microcontroller single chip circuit module of the utility model embodiment;
Fig. 5 is the circuit diagram according to the interface module of the utility model embodiment.
Embodiment
Fig. 1 is according to theory diagram of the present utility model.As shown in Figure 1, the utility model DC brushless motor controller of being used for soy bean milk making machine comprises rectification circuit module 1, converter 2, microcontroller single chip circuit module 3.Rectification circuit module 1 is accepted the alternating voltage input, and provide direct current output for converter 2 and microcontroller single chip circuit module 3, the part of direct current pressure that converter 2 is exported rectification circuit module 1 converts three-phase voltage to and drives dc brushless motor 5, microcontroller single chip circuit module 3 provides operating voltage by the part of direct current pressure of handling through the current sample step-down of rectification circuit module 1 output, drive converter 2 work by three identical chip for driving (for example L6387 or L6388), back electromotive force on induction and the triple line that the motor three-phase coil links to each other is to detect the position of rotor, and pulse width modulation (PWM) signal of receiving interface circuit module output, realize stepless speed regulation control to dc brushless motor.
Fig. 2 is the circuit diagram according to the rectification circuit module of the utility model embodiment.Rectification circuit module 1 adopts the wide range AC voltage input, and for example 180VAC-260VAC piles the transducer of forming by rectifier bridge earlier alternating voltage is converted to direct voltage, corresponds to 250VDC-366VDC.Part of direct current is pressed and to be offered converter 2 and convert three-phase voltage to and drive dc brushless motor 5, another part is by comprising the reduction voltage circuit of chip U1 (VIPER12), converts direct current 15VDC and 5VDC to and offers chip (for example single-chip microcomputer, U1 etc.) in the controller as operating voltage.
Fig. 3 is the circuit diagram according to the converter of the utility model embodiment.As shown in Figure 3, converter 2 comprises three chip for driving U9, U12, U13 and six power transistors (IGBT) Q11, Q12, Q13, Q14, Q15, Q16 and peripheral circuit.Each chip for driving receives the two-way pwm signal that the single-chip microcomputer in the microcontroller single chip circuit module 3 produces, and drives converter 2 work.Six power transistors divide for upper arm of being made up of Q11, Q13, Q15 and the underarm of being made up of Q12, Q14, Q16, and upper arm is connected dc brushless motor 5 respectively as the switch of control flows through the electric current of motor coil with underarm.Converter 2 connects the brush DC triple line by connector CN2, simultaneously series resistance R73, R77, R76 are connected to the pin 10 of single-chip microcomputer respectively in triple line, series resistance R74, R79, R78 are connected to the pin 11 of single-chip microcomputer, series resistance R75, R81, R80 are connected to the pin 12 of single-chip microcomputer, to obtain the position of dc brushless motor rotor, thereby make controller realize zero passage, commutation, demagnetization, normally control motor operation periodic duty.By the foundation of the back electromotive force on the detection motor three-phase coil as phase sequence control.
Fig. 4 is the circuit diagram according to the microcontroller single chip circuit module of the utility model embodiment.As shown in Figure 4, this single-chip microcomputer U14 adopts ST company special DC brushless electric machine control single chip computer, has six road pwm signal generation modules in the band dead band of hardware curing, is the core of controller circuitry, realizes the frequency conversion speed open loop control of controller.Single-chip microcomputer U14 provides six road pwm signal HSIC3, LSIC3, HSIC5, LSIC5, HSIC8, LSIC8, the opportunity of power controlling transistor switch frequency and converter 2 commutations.The brush DC triple line inserts single-chip microcomputer U14 by series resistance, the position that single-chip microcomputer U14 obtains the dc brushless motor rotor by the back electromotive force that detects on the motor three-phase coil, thereby make controller realize zero passage, commutation, demagnetization, normally control motor operation periodic duty.By the foundation of the back electromotive force on the detection motor three-phase coil as phase sequence control.In addition, single-chip microcomputer U14 obtains the stepless speed regulation of control realization to motor by interface module 4, is normal operation or abnormality by the signal feedback circuit output motor simultaneously.
Fig. 5 is the circuit diagram according to the interface module of the utility model embodiment.As shown in Figure 5, interface module 4 provides external control signal PWM_IN and feedback loop output signal Fre_IN to single-chip microcomputer.Interface module is converted to external control signal the pwm signal of control motor operation, signal frequency range is 100HZ-1000HZ, duty ratio is 0%-100%, the voltage magnitude scope is 5V-10V, then by PD6 interface input single-chip microcomputer, thus make controller by chip microcontroller to the control of DC brushless motor speed from the zero-speed to the maximum motor speed.Interface module 4 can also be by interface PD2 to single-chip microcomputer input feedback pwm signal, signal frequency range is 100HZ-1000HZ, duty ratio is 0%-100%, the voltage magnitude scope is 5V-10V, if signal is arranged then controller driven machine operation is described, no signal illustrates that then controller stops or not having an operate as normal.
The utility model adopts rectification circuit module 1, makes the controller wide input voltage range; Adopt Yi Fa semiconductor company (ST company) special DC brushless electric machine control single chip computer, make controller performance more reliable and more stable; With the special-purpose back electromotive force port of dc brushless motor three-phase coil, make the location of controls signal deteching circuit simpler by series resistance access single-chip microcomputer; The special-purpose back electromotive force of the ST single-chip microcomputer that adopts hardware to solidify detects control module makes the counter electromotive force of motor detection more stable accurately; Adopt interface module 4, making the motor operational speed range is 0RPM-16000RPM, has realized the stepless speed regulation control to dc brushless motor.The DC brushless motor controller that the utility model provides not only can be applied on the soy bean milk making machine, can also be applied on the kitchen small household appliances such as juice extractor, mixer.
Claims (8)
1. a DC brushless motor controller that is used for soy bean milk making machine is characterized in that, comprising: the rectification circuit module that is used for the alternating voltage input is changed into direct voltage; Link to each other with motor and be used for the direct current of described rectification circuit module output is changed into the converter that three-phase voltage comes drive motors; Be used to drive the microcontroller single chip circuit module of described converter, described microcontroller single chip circuit module links to each other with described converter;
Described microcontroller single chip circuit module further comprises the counter electromotive force detection circuit that is used to detect motor rotor position.
2. the DC brushless motor controller that is used for soy bean milk making machine according to claim 1, it is characterized in that, also comprise linking to each other with described microcontroller single chip circuit module and being used to obtain external control signal and output feedback signal to realize the interface module of stepless speed regulation control.
3. the DC brushless motor controller that is used for soy bean milk making machine according to claim 1 and 2, it is characterized in that, described microcontroller single chip circuit module further comprises single-chip microcomputer and the peripheral circuit thereof that is used to control described converter and described motor, and described counter electromotive force detection circuit is arranged in described single-chip microcomputer.
4. the DC brushless motor controller that is used for soy bean milk making machine according to claim 1 and 2, it is characterized in that described rectification circuit module further comprises and is used for the alternating voltage input is converted into the transducer of direct voltage and links to each other with described single-chip microcomputer and described part direct voltage is carried out step-down is handled provides operating voltage with the chip of thinking circuit reduction voltage circuit.
5. the DC brushless motor controller that is used for soy bean milk making machine according to claim 1 and 2, it is characterized in that, described converter further comprises six power transistors that link to each other with described single-chip microcomputer by three chip for driving, and described power transistor is divided into upper arm and is connected described motor with underarm as the switch of control flows through motor coil.
6. the DC brushless motor controller that is used for soy bean milk making machine according to claim 1 and 2, it is characterized in that, described DC brushless motor controller links to each other with the motor three-phase coil through triple line by connector, and described triple line links to each other with the special-purpose back electromotive force port of described single-chip microcomputer by at least one series resistance respectively.
7. the DC brushless motor controller that is used for soy bean milk making machine according to claim 1 and 2 is characterized in that, described DC brushless motor controller is the electric machine controller that adopts frequency conversion speed open loop control mode.
8. the DC brushless motor controller that is used for soy bean milk making machine according to claim 3 is characterized in that, described single-chip microcomputer is the special DC brushless electric machine control single chip computer that six road pulse width modulating signals in the band dead band that hardware solidifies are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205315683U CN201854231U (en) | 2010-09-16 | 2010-09-16 | Direct current brushless motor controller for bean milk machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205315683U CN201854231U (en) | 2010-09-16 | 2010-09-16 | Direct current brushless motor controller for bean milk machine |
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| Publication Number | Publication Date |
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| CN201854231U true CN201854231U (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205315683U Expired - Fee Related CN201854231U (en) | 2010-09-16 | 2010-09-16 | Direct current brushless motor controller for bean milk machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602966A (en) * | 2015-10-15 | 2017-04-26 | 广东美的生活电器制造有限公司 | Electric cooking appliance and control circuit thereof |
| CN108594713A (en) * | 2018-05-14 | 2018-09-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor control method, dish-washing machine and computer readable storage medium |
| CN112737427A (en) * | 2021-01-15 | 2021-04-30 | 北京绿能芯创电子科技有限公司 | High-speed DC brushless motor driver |
-
2010
- 2010-09-16 CN CN2010205315683U patent/CN201854231U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602966A (en) * | 2015-10-15 | 2017-04-26 | 广东美的生活电器制造有限公司 | Electric cooking appliance and control circuit thereof |
| CN108594713A (en) * | 2018-05-14 | 2018-09-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor control method, dish-washing machine and computer readable storage medium |
| CN108594713B (en) * | 2018-05-14 | 2022-07-12 | 佛山市顺德区美的洗涤电器制造有限公司 | Motor control method, dishwasher, and computer-readable storage medium |
| CN112737427A (en) * | 2021-01-15 | 2021-04-30 | 北京绿能芯创电子科技有限公司 | High-speed DC brushless motor driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20150916 |
|
| EXPY | Termination of patent right or utility model |