CN109951112A - It is a kind of for eliminating the control circuit of noise of motor - Google Patents
It is a kind of for eliminating the control circuit of noise of motor Download PDFInfo
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- CN109951112A CN109951112A CN201811576478.3A CN201811576478A CN109951112A CN 109951112 A CN109951112 A CN 109951112A CN 201811576478 A CN201811576478 A CN 201811576478A CN 109951112 A CN109951112 A CN 109951112A
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- detection circuit
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- 238000001514 detection method Methods 0.000 claims abstract description 43
- 230000005611 electricity Effects 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Control Of Electric Motors In General (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
The invention discloses a kind of for eliminating the control circuit of noise of motor, including current detection circuit, voltage detecting circuit, power-sensing circuit, detection circuit of power factor, controller and switching circuit；Controller is connected with current detection circuit, voltage detecting circuit, power-sensing circuit, detection circuit of power factor, switching circuit respectively；The control circuit that the present invention is used to eliminate noise of motor is measured in real time by current detection circuit, voltage detecting circuit, power-sensing circuit, detection circuit of power factor, and controller judges the operating status of motor according to signal；When being full load in the cavity of motor operation, controller passes through switching circuit and controls motor normal work；When undercapacity in the cavity of motor operation, controller controls motor by switching circuit and stops working, and reduces noise of motor, reduces motor power consumption, reduces the temperature of the components such as coil caused by motor continues working, extends the service life of motor.
Description
Technical field
It is especially a kind of for eliminating the control circuit of noise of motor the present invention relates to motor control technology field.
Background technique
When motor works in the cavity for filling liquid in the prior art, motor impeller is run in the cavity, works as chamber
Intracorporal liquid is not full load, and air can form very big noise in cavity；Draining pump in the prior art, noise is very big,
Influence whether that people normally live, especially on the product of domestic type, such as the draining pump on washing machine, dish washing-machine water-draining pump
Deng used synchronous motor.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of for eliminating the control circuit of noise of motor.
The technical solution for realizing the aim of the invention is as follows:
It is a kind of for eliminating the control circuit of noise of motor, which is characterized in that including current detection circuit, voltage detecting circuit,
Power-sensing circuit, detection circuit of power factor, controller and switching circuit；The input terminal and motor of the current detection circuit
Power supply line is connected, and the output end of current detection circuit is connected with the input terminal of controller；The current detection circuit is used for
The operating current of motor is detected, and the current signal that will test is transmitted to controller；The input terminal of the voltage detecting circuit with
Motor power-supply wire is connected, and the output end of voltage detecting circuit is connected with the input terminal of controller；The voltage detecting circuit
For detecting the operating voltage of motor, and the voltage signal that will test is transmitted to controller；The input of the power-sensing circuit
End is connected with motor power-supply wire, and the output end of power-sensing circuit is connected with the input terminal of controller；The power detection
Circuit is used to detect power when motor work, and the power signal transmissions that will test are to controller；The power factor detection
The input terminal of circuit is connected with motor power-supply wire, and the output end of detection circuit of power factor is connected with the input terminal of controller
It connects；The detection circuit of power factor is used to detect power factor when motor work, and the power factor signal that will test passes
Transport to controller；The output end of the controller is connected with the control terminal of switching circuit, the input terminal of switching circuit and power supply
Power supply is connected, and the output end of switching circuit is connected with motor power-supply wire, and controller controls the logical of motor by switching circuit
It is disconnected.
Compared with prior art, the present invention its remarkable advantage:
The control circuit that the present invention is used to eliminate noise of motor passes through current detection circuit, voltage detecting circuit, power detection electricity
Road, detection circuit of power factor are measured in real time, and controller is according to current signal, voltage signal, power signal, power factor
Signal judges the operating status of motor, that is, judges to be fully loaded or undercapacity in the cavity of motor operation；When motor operation
It is full load in cavity, controller controls motor by switching circuit and works normally；When undercapacity in the cavity of motor operation,
Controller controls motor by switching circuit and stops working, and reduces noise of motor, reduces motor power consumption, reduces motor and hold
The temperature of the components such as coil caused by continuous work, extends the service life of motor.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is required attached drawing in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of control circuit of the present invention for eliminating noise of motor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1:
As shown in Figure 1, a kind of for eliminating the control circuit of noise of motor, including current detection circuit, voltage detecting circuit, function
Rate detection circuit, detection circuit of power factor, controller and switching circuit；Input terminal and the motor electricity of the current detection circuit
Source line is connected, and the output end of current detection circuit is connected with the input terminal of controller；The current detection circuit is for examining
The operating current of measured motor, and the current signal that will test is transmitted to controller；The input terminal and electricity of the voltage detecting circuit
Electromechanical source line is connected, and the output end of voltage detecting circuit is connected with the input terminal of controller；The voltage detecting circuit is used
In the operating voltage of detection motor, and the voltage signal that will test is transmitted to controller；The input terminal of the power-sensing circuit
It is connected with motor power-supply wire, the output end of power-sensing circuit is connected with the input terminal of controller；The power detection electricity
Road is used to detect power when motor work, and the power signal transmissions that will test are to controller；The power factor detection electricity
The input terminal on road is connected with motor power-supply wire, and the output end of detection circuit of power factor is connected with the input terminal of controller；
The detection circuit of power factor is used to detect power factor when motor work, and the power factor signal that will test is transmitted to
Controller；The output end of the controller is connected with the control terminal of switching circuit, the input terminal and power supply of switching circuit
It is connected, the output end of switching circuit is connected with motor power-supply wire, and controller controls the on-off of motor by switching circuit.
The present invention is used to eliminate the working principle of the control circuit of noise of motor:
Controller turns on the switch circuit, so that motor works；Pass through current detection circuit, voltage detecting circuit, power detection electricity
Road, detection circuit of power factor are measured in real time, and controller is according to current signal, voltage signal, power signal, power factor
Signal judges the operating status of motor, that is, judges to be fully loaded or undercapacity in the cavity of motor operation；When motor operation
It is full load in cavity, controller maintains switching circuit to open, and motor operates normally；When undercapacity in the cavity of motor operation
When, controller turns off the switch circuit, has cut off the power supply of motor, operation is left the motor off, to reach reduction, eliminate noise.
In conclusion the control circuit that the present invention is used to eliminate noise of motor passes through current detection circuit, voltage detecting electricity
Road, power-sensing circuit, detection circuit of power factor are measured in real time, and controller is according to current signal, voltage signal, power
Signal, power factor signal judge the operating status of motor, that is, judge to be fully loaded or undercapacity in the cavity of motor operation；
When being full load in the cavity of motor operation, controller passes through switching circuit and controls motor normal work；When the chamber of motor operation
When internal undercapacity, controller controls motor by switching circuit and stops working, and reduces noise of motor, reduces motor function
Consumption reduces the temperature of the components such as coil caused by motor continues working, extends the service life of motor.
Particular embodiments described above, the technical issues of to solution of the invention, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to
The present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (1)
1. a kind of for eliminating the control circuit of noise of motor, which is characterized in that including current detection circuit, voltage detecting electricity
Road, power-sensing circuit, detection circuit of power factor, controller and switching circuit；The input terminal of the current detection circuit with
Motor power-supply wire is connected, and the output end of current detection circuit is connected with the input terminal of controller；The current detection circuit
For detecting the operating current of motor, and the current signal that will test is transmitted to controller；The input of the voltage detecting circuit
End is connected with motor power-supply wire, and the output end of voltage detecting circuit is connected with the input terminal of controller；The voltage detecting
Circuit is used to detect the operating voltage of motor, and the voltage signal that will test is transmitted to controller；The power-sensing circuit
Input terminal is connected with motor power-supply wire, and the output end of power-sensing circuit is connected with the input terminal of controller；The power
Detection circuit is used to detect power when motor work, and the power signal transmissions that will test are to controller；The power factor
The input terminal of detection circuit is connected with motor power-supply wire, the input terminal phase of the output end and controller of detection circuit of power factor
Connection；The detection circuit of power factor is used to detect power factor when motor work, and the power factor signal that will test
It is transmitted to controller；The output end of the controller is connected with the control terminal of switching circuit, the input terminal of switching circuit and confession
Power supply is connected, and the output end of switching circuit is connected with motor power-supply wire, and controller controls motor by switching circuit
On-off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576478.3A CN109951112A (en) | 2018-12-22 | 2018-12-22 | It is a kind of for eliminating the control circuit of noise of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576478.3A CN109951112A (en) | 2018-12-22 | 2018-12-22 | It is a kind of for eliminating the control circuit of noise of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109951112A true CN109951112A (en) | 2019-06-28 |
Family
ID=67007153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811576478.3A Pending CN109951112A (en) | 2018-12-22 | 2018-12-22 | It is a kind of for eliminating the control circuit of noise of motor |
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| Country | Link |
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| CN (1) | CN109951112A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719751A (en) * | 2010-01-28 | 2010-06-02 | 扬中市丰顺电器有限公司 | Method and device for soft stop control for pump loaded motor |
| CN204013310U (en) * | 2014-07-31 | 2014-12-10 | 湖南工程学院 | Brushless dual-feed motor direct Torque Control |
| CN105900325A (en) * | 2014-01-09 | 2016-08-24 | 三菱电机株式会社 | Power conversion device |
| CN106130428A (en) * | 2016-07-29 | 2016-11-16 | 惠而浦（中国）股份有限公司 | A kind of speed detection method of use in washing machine position-sensor-free variable-frequency direct-drive motor |
| CN207241424U (en) * | 2017-05-22 | 2018-04-17 | 陈安俊 | A kind of control system for motor vehicle motor |
-
2018
- 2018-12-22 CN CN201811576478.3A patent/CN109951112A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719751A (en) * | 2010-01-28 | 2010-06-02 | 扬中市丰顺电器有限公司 | Method and device for soft stop control for pump loaded motor |
| CN105900325A (en) * | 2014-01-09 | 2016-08-24 | 三菱电机株式会社 | Power conversion device |
| CN204013310U (en) * | 2014-07-31 | 2014-12-10 | 湖南工程学院 | Brushless dual-feed motor direct Torque Control |
| CN106130428A (en) * | 2016-07-29 | 2016-11-16 | 惠而浦（中国）股份有限公司 | A kind of speed detection method of use in washing machine position-sensor-free variable-frequency direct-drive motor |
| CN207241424U (en) * | 2017-05-22 | 2018-04-17 | 陈安俊 | A kind of control system for motor vehicle motor |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190628 |