CN205584054U - Motor control circuit among water pump system - Google Patents
Motor control circuit among water pump system Download PDFInfo
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- CN205584054U CN205584054U CN201620139124.2U CN201620139124U CN205584054U CN 205584054 U CN205584054 U CN 205584054U CN 201620139124 U CN201620139124 U CN 201620139124U CN 205584054 U CN205584054 U CN 205584054U
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Abstract
The utility model relates to a motor control circuit among water pump system, including motor driver module and motor adjusting module, motor driver module is the drive of nos position sensor, founds the star triangle three -phase bridge circuit that forms by the single -phase drive circuit of three groups, and single -phase drive circuit adopts half -bridge driver IR2103, judges electric motor rotor's position through detecting back electromotive force zero crossing in the three -phase bridge circuit, switches on the power MOS pipe on the corresponding phase place circuit through the position of confirming the electron rotor, the DC conversion one -tenth driving motor's that inputs three -phase, the utility model discloses the sensing drive of nos position is adopted in the drive of motor, has reduced the positional detection sensor on the motor, and the probability of lowering system trouble has just made things convenient for the better installation of motor, just the utility model discloses be equipped with motor time delay design, prevent that the water pump from frequently starting, effectively protect the motor, just the utility model discloses the motor pick -up current is lower, prevents motor overheat, has improved the life of motor.
Description
Technical field
This utility model belongs to water pump control field, relates to the circuit for controlling motor in a kind of water pump system.
Background technology
Application of Solar Energy technology and the most progressive development bringing photovoltaic water pump industry of photovoltaic power generation technology.Photovoltaic water pump is shown up prominently in irrigating industry, and obtains the favor of considerable developing country.
The operation principle of photovoltaic water pump system is to utilize the electric power of photovoltaic battery panel, by the power conversion effect of controller, drive direct current generator or alternating current generator thus drive water pump operation, be generally used for field irrigation, cattle breeding, the different occasion such as domestic water and fountain view.
In traditional water pump system, the startup of motor all can bring electric motor starting electric current too high, the phenomenon that the motor feels hot, and use multiple motor rotor position to detect sensor when motor drives, cause the inconvenience that motor is installed, and an once sensor degradation, will result in motor rotor position and confirm inaccurate, the AC-DC conversion precision of motor is the highest.
Utility model content
This utility model purpose is to solve the deficiencies in the prior art, it is provided that the circuit for controlling motor in the water pump system that a kind of motor is easy for installation and electric motor starting is stable, and its technical scheme is as follows:
nullA kind of circuit for controlling motor in water pump system，It is characterized in that: include motor drive module and motor adjustment module，Described motor drive module is that position-sensor-free drives，The star triangle three phase bridge circuit built-up by three groups of single-phase driving circuits，Described single-phase driving circuit uses half-bridge driver IR2103，The high side gate of half-bridge driver IR2103 drives the grid of output pin and the 5th power MOS pipe M5 to be connected，The low raster data model output pin of half-bridge driver IR2103 and the grid of the 6th power MOS pipe M6 are connected，The source electrode of the 5th power MOS pipe M5 and the drain electrode of the 6th power MOS pipe M6 are connected，And the 5th power MOS pipe M5 source electrode and the drain electrode of the 6th power MOS pipe M6 between be single-phase counter electromotive force output point，The drain electrode of the 5th power MOS pipe M5 connects working power，The source ground of the 6th power MOS pipe M6，The high side input pin of half-bridge driver IR2103 and downside input pin connect power subsystem；
Judged the position of rotor by the back electromotive force zero-crossing in detection three phase bridge circuit, be determined by the power MOS pipe on the position conducting respective phase circuit of electronics rotor, the unidirectional current of input be converted into the three-phase electricity driving motor.
Further, being provided with alignment circuit in described motor adjustment module, described alignment circuit includes a slide rheostat and operational amplifier, resistance section one termination power of slide rheostat, other end ground connection,
The input of the brush portion concatenation operation amplifier of slide rheostat, operational amplifier is output as the change in voltage that electric machine speed regulation is corresponding.
Further, described circuit for controlling motor also includes that motor delayed startup module, described motor delayed startup module include one for regulating the potentiometer of delay time, and the brush of described potentiometer controls for output, resistance one end of described potentiometer connects running voltage, other end ground connection；
Work as sliding brush, by changing the size of the resistance value accessing brush end, thus change the voltage of brush end, thus adjust corresponding delay time by the change of voltage.
Further, described circuit for controlling motor also includes current of electric detection module, described current of electric detection module includes comparator, the in-phase input end of described comparator connects reference voltage through resistance R131, the most respectively through resistance R132 ground connection on the in-phase input end of described comparator, through electric capacity C131 ground connection；The inverting input of described comparator connects motor through resistance R134, and the outfan of described comparator connects running voltage through resistance R133, and the outfan of comparator exports again after resistance R135；
More than running voltage after the electric current flowing through motor is converted into voltage, comparator output low level, current of electric is abnormal；Less than reference voltage after the electric current flowing through motor is converted into voltage, comparator output high level, current of electric is abnormal, and equal to reference voltage after the electric current flowing through motor is converted into voltage, current of electric is normal.
This utility model beneficial effect compared with prior art: the driving of this utility model motor uses position sensorless to drive; decrease the position-detection sensor on motor; reduce the probability of the system failure; and facilitate more preferably installing of motor, and this utility model is provided with motor time delay design, prevents water pump frequent starting; effectively protect motor; and this utility model electric motor starting electric current is relatively low, prevents motor overheating, improve the service life of motor.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams that this utility model drives module；
Fig. 2 is the circuit theory diagrams of this utility model motor adjustment module；
Fig. 3 is the circuit theory diagrams of this utility model motor delayed startup module；
Fig. 4 is the circuit theory diagrams of this utility model current of electric detection module.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is further described, but this utility model is not limited to these embodiments.
nullAs shown in Figure 1，A kind of circuit for controlling motor in water pump system，Including motor drive module 100 and motor adjustment module 200，Described motor drive module is that position-sensor-free drives，The star triangle three phase bridge circuit built-up by three groups of single-phase driving circuits，Described single-phase driving circuit uses half-bridge driver IR2103，The high side gate of half-bridge driver IR2103 drives the grid of output pin and the first power MOS pipe M5 to be connected，The low raster data model output pin of half-bridge driver IR2103 and the grid of the second power MOS pipe M6 are connected，The source electrode of the first power MOS pipe M5 and the drain electrode of the second power MOS pipe M6 are connected，And first power MOS pipe M5 source electrode and the drain electrode of the second power MOS pipe M6 between be single-phase counter electromotive force output point，The drain electrode of the first power MOS pipe M5 connects working power，The source ground of the second power MOS pipe M6，The high side input pin of half-bridge driver IR2103 and downside input pin connect power subsystem.
This utility model judges the position of rotor by the back electromotive force zero-crossing in detection three phase bridge circuit, it is determined by the power MOS pipe on the position conducting respective phase circuit of electronics rotor, the unidirectional current of input is converted into the three-phase electricity driving motor, and this utility model is by regulating the ON time of the first power MOS pipe M5 in each phase, so that the voltage exporting motor slowly raises, extend the life-span of motor.
As shown in Figure 2, it is provided with alignment circuit in motor adjustment module 200, described alignment circuit includes a slide rheostat and operational amplifier, resistance section one termination power of slide rheostat, other end ground connection, the input of the brush portion concatenation operation amplifier of slide rheostat, operational amplifier is output as the change in voltage that electric machine speed regulation is corresponding.
Circuit for controlling motor also includes motor delayed startup module 300 and current of electric detection module 400.
As shown in Figure 3, motor delayed startup module 300 includes one for regulating the potentiometer of delay time, the brush of described potentiometer controls for output, resistance one end of described potentiometer connects running voltage, other end ground connection, works as sliding brush, by changing the size of the resistance value accessing brush end, thus change the voltage of brush end, thus adjust corresponding delay time by the change of voltage.
As shown in Figure 4, current of electric detection module 400, described current of electric detection module includes comparator, and the in-phase input end of described comparator connects reference voltage through resistance R131, the most respectively through resistance R132 ground connection on the in-phase input end of described comparator, through electric capacity C131 ground connection；The inverting input of described comparator connects motor through resistance R134, the outfan of described comparator connects running voltage through resistance R133, the outfan of comparator exports again after resistance R135, more than running voltage after the electric current flowing through motor is converted into voltage, comparator output low level, current of electric is abnormal；Less than reference voltage after the electric current flowing through motor is converted into voltage, comparator output high level, current of electric is abnormal, and equal to reference voltage after the electric current flowing through motor is converted into voltage, current of electric is normal.
The driving of this utility model motor uses position sensorless to drive; decrease the position-detection sensor on motor; reduce the probability of the system failure; and facilitate more preferably installing of motor, and this utility model is provided with motor time delay design, prevents water pump frequent starting; effectively protect motor; and this utility model electric motor starting electric current is relatively low, prevents motor overheating, improve the service life of motor.
Specific embodiment described herein is only to this utility model spirit explanation for example.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by this utility model person of ordinary skill in the field, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (4)
- null1. the circuit for controlling motor in a water pump system，It is characterized in that: include motor drive module and motor adjustment module，Described motor drive module is that position-sensor-free drives，The star triangle three phase bridge circuit built-up by three groups of single-phase driving circuits，Described single-phase driving circuit uses half-bridge driver IR2103，The high side gate of half-bridge driver IR2103 drives the grid of output pin and the 5th power MOS pipe M5 to be connected，The low raster data model output pin of half-bridge driver IR2103 and the grid of the 6th power MOS pipe M6 are connected，The source electrode of the 5th power MOS pipe M5 and the drain electrode of the 6th power MOS pipe M6 are connected，And the 5th power MOS pipe M5 source electrode and the drain electrode of the 6th power MOS pipe M6 between be single-phase counter electromotive force output point，The drain electrode of the 5th power MOS pipe M5 connects working power，The source ground of the 6th power MOS pipe M6，The high side input pin of half-bridge driver IR2103 and downside input pin connect power subsystem；Judged the position of rotor by the back electromotive force zero-crossing in detection three phase bridge circuit, be determined by the power MOS pipe on the position conducting respective phase circuit of electronics rotor, the unidirectional current of input be converted into the three-phase electricity driving motor.
- Circuit for controlling motor in water pump system the most according to claim 1, it is characterized in that: be provided with alignment circuit in described motor adjustment module, described alignment circuit includes a slide rheostat and operational amplifier, resistance section one termination power of slide rheostat, other end ground connection The input of the brush portion concatenation operation amplifier of slide rheostat, operational amplifier is output as the change in voltage that electric machine speed regulation is corresponding.
- Circuit for controlling motor in water pump system the most according to claim 2, it is characterized in that: described circuit for controlling motor also includes motor delayed startup module, described motor delayed startup module includes one for regulating the potentiometer of delay time, the brush of described potentiometer controls for output, resistance one end of described potentiometer connects running voltage, other end ground connection；Work as sliding brush, by changing the size of the resistance value accessing brush end, thus change the voltage of brush end, thus adjust corresponding delay time by the change of voltage.
- Circuit for controlling motor in water pump system the most according to claim 3, it is characterized in that: described circuit for controlling motor also includes current of electric detection module, described current of electric detection module includes comparator, the in-phase input end of described comparator connects reference voltage through resistance R131, the most respectively through resistance R132 ground connection on the in-phase input end of described comparator, through electric capacity C131 ground connection；The inverting input of described comparator connects motor through resistance R134, and the outfan of described comparator connects running voltage through resistance R133, and the outfan of comparator exports again after resistance R135；More than running voltage after the electric current flowing through motor is converted into voltage, comparator output low level, current of electric is abnormal；Less than reference voltage after the electric current flowing through motor is converted into voltage, comparator output high level, current of electric is abnormal, and equal to reference voltage after the electric current flowing through motor is converted into voltage, current of electric is normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620139124.2U CN205584054U (en) | 2016-02-24 | 2016-02-24 | Motor control circuit among water pump system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620139124.2U CN205584054U (en) | 2016-02-24 | 2016-02-24 | Motor control circuit among water pump system |
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| CN205584054U true CN205584054U (en) | 2016-09-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553350A (en) * | 2016-02-24 | 2016-05-04 | 台州谊聚机电有限公司 | Motor control circuit in water pump system |
| CN106972795A (en) * | 2017-05-05 | 2017-07-21 | 张瑞烽 | A kind of motor controlling integrated circuit |
-
2016
- 2016-02-24 CN CN201620139124.2U patent/CN205584054U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553350A (en) * | 2016-02-24 | 2016-05-04 | 台州谊聚机电有限公司 | Motor control circuit in water pump system |
| CN106972795A (en) * | 2017-05-05 | 2017-07-21 | 张瑞烽 | A kind of motor controlling integrated circuit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170522 Address after: Wenling City, Taizhou City, Zhejiang province 317511 Songmen Town Industrial Zone southeast Taifu pump Patentee after: Zhejiang Taifu pump Limited by Share Ltd Address before: 317511 Wenling City, Zhejiang Province, Southeast of the town of the town of Industrial Co., Ltd. Patentee before: TAIZHOU YIJU MECHANICAL & ELECTRIC PRODUCTS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Wenling City, Taizhou City, Zhejiang province 317511 Songmen Town Industrial Zone southeast Taifu pump Patentee after: Zhejiang Taifu pump Limited by Share Ltd Address before: 317511 Wenling City, Zhejiang Province, Southeast of the town of the town of Industrial Co., Ltd. Patentee before: TAIZHOU YIJU MECHANICAL & ELECTRIC PRODUCTS CO., LTD. |