CN109713979A - A kind of ON-OFF control circuit for reducing drain motor noise - Google Patents
A kind of ON-OFF control circuit for reducing drain motor noise Download PDFInfo
- Publication number
- CN109713979A CN109713979A CN201811576453.3A CN201811576453A CN109713979A CN 109713979 A CN109713979 A CN 109713979A CN 201811576453 A CN201811576453 A CN 201811576453A CN 109713979 A CN109713979 A CN 109713979A
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- Prior art keywords
- circuit
- drain motor
- control circuit
- power
- input terminal
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- 238000001514 detection method Methods 0.000 claims abstract description 37
- 230000005611 electricity Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004851 dishwashing Methods 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
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The invention discloses a kind of ON-OFF control circuits for reducing drain motor noise, including power supply input circuit, current detection circuit, voltage detecting circuit, power-sensing circuit, detection circuit of power factor, control circuit and switching circuit, the present invention passes through current detection circuit for reducing the ON-OFF control circuit of drain motor noise, voltage detecting circuit, power-sensing circuit, detection circuit of power factor is measured in real time drain motor, the operating status of drain motor is judged according to the signal detected, when in the cavity of drain motor operation being full water, control circuit controls drain motor by switching circuit and works normally, when non-full water in the cavity of drain motor operation, control circuit controls drain motor by switching circuit and stops working, both the noise of drain motor had been reduced, reduce the power consumption of drain motor again , while the temperature rise that drain motor continues working the components such as caused coil is reduced again, extend the service life of drain motor.
Description
Technical field
The present invention relates to drain motor control technology field, it is related specifically to make an uproar on household electrical appliance for reducing drain motor
The ON-OFF control circuit of sound.
Background technique
When drain motor in the equipment such as washing machine or dish-washing machine in the prior art works in the cavity for filling water,
When impeller on drain motor is run in the cavity, when the intracorporal water of chamber is not full water, air can form very big in the cavity
Noise, and the prior art can't detect the operating condition of drain motor, cause the noise of drain motor very big, influence whether people
Normal life.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of switch controls for reducing drain motor noise
Circuit processed.
The technical solution for realizing the aim of the invention is as follows:
Preferably, a kind of ON-OFF control circuit for reducing drain motor noise, which is characterized in that include power input electricity
Road, current detection circuit, control circuit and switching circuit, the input terminal of the current detection circuit and the power supply input circuit
It is connected, the output end of the current detection circuit is connected with the input terminal of the control circuit, the current detection circuit
For detecting the operating current of drain motor, and the current signal that will test is transmitted to the control circuit, the control circuit
Output end be connected with the input terminal of the switching circuit, the input terminal of the switching circuit and the power supply input circuit phase
Connection, the output end of the switching circuit are connected with the drain motor power supply line input terminal, and the control circuit passes through control
The on-off of the switching circuit is made to control the work and closing of the drain motor.
Preferably, the ON-OFF control circuit for reducing drain motor noise also includes voltage detecting circuit, institute
The input terminal for stating voltage detecting circuit is connected with the power supply input circuit, the output end of the voltage detecting circuit with it is described
The input terminal of control circuit is connected, and the voltage detecting circuit is used to detect the operating voltage of drain motor, and will test
Voltage signal is transmitted to the control circuit.
Preferably, the ON-OFF control circuit for reducing drain motor noise also includes power-sensing circuit, institute
The input terminal for stating power-sensing circuit is connected with the power supply input circuit, the output end of the power-sensing circuit with it is described
The input terminal of control circuit is connected, and the power-sensing circuit is used to detect power when drain motor work, and will test
Power signal transmissions to the control circuit.
Preferably, the ON-OFF control circuit for reducing drain motor noise also includes power factor detection electricity
Road, the input terminal of the detection circuit of power factor are connected with the power supply input circuit, the detection circuit of power factor
Output end be connected with the input terminal of the control circuit, the detection circuit of power factor for detect drain motor work
When power factor, and the power factor signal that will test is transmitted to the control circuit.
Compared with prior art, the present invention having the advantage that
The present invention can be by current detection circuit, voltage detecting circuit, power-sensing circuit, detection circuit of power factor
Any one is measured in real time drain motor, according to detect current signal, voltage signal, power signal, power because
Any one in number signals judges the operating status of drain motor, i.e., judge be in cavity that drain motor is run full water also
It is non-full water, when being full water, control circuit is normal by switching circuit control drain motor in the cavity of drain motor operation
Work, when non-full water in the cavity of drain motor operation, control circuit controls drain motor by switching circuit and stops working,
The noise of drain motor had not only been reduced in this way, but also has reduced the power consumption of drain motor, while being reduced drain motor again and being continued work
The temperature rise of the components such as the coil caused by making, extends the service life of drain motor.
Detailed description of the invention
Fig. 1 is the schematic diagram of the ON-OFF control circuit of the invention for reducing drain motor noise.
Specific embodiment
Below with reference to the attached drawing 1 in the present invention, the technical solution in the present invention is described.
Embodiment 1:
As shown in Figure 1, a kind of ON-OFF control circuit for reducing drain motor noise, which is characterized in that include power input
Circuit, current detection circuit, control circuit and switching circuit, the input terminal of the current detection circuit and power input electricity
Road is connected, and the output end of the current detection circuit is connected with the input terminal of the control circuit, the current detecting electricity
Road is used to detect the operating current of drain motor, and the current signal that will test is transmitted to the control circuit, the control electricity
The output end on road is connected with the input terminal of the switching circuit, the input terminal of the switching circuit and the power supply input circuit
Be connected, the output end of the switching circuit is connected with the drain motor power supply line input terminal, the control circuit according to
The current signal detected controls the on-off of the switching circuit, the on-off that the control circuit passes through the control switching circuit
To control the work and closing of the drain motor.
Embodiment 2:
As shown in Figure 1, on the basis of embodiment 1, the ON-OFF control circuit for reducing drain motor noise also wraps
Containing voltage detecting circuit, the input terminal of the voltage detecting circuit is connected with the power supply input circuit, the voltage detecting
The output end of circuit is connected with the input terminal of the control circuit, and the voltage detecting circuit is used to detect the work of drain motor
The voltage signal making voltage, and will test is transmitted to the control circuit；The control circuit is according to the voltage signal detected
The on-off of the switching circuit is controlled, the control circuit controls the draining electricity by controlling the on-off of the switching circuit
The work and closing of machine.
Embodiment 3:
As shown in Figure 1, the ON-OFF control circuit for reducing drain motor noise also wraps on the basis of embodiment 2
Containing power-sensing circuit, the input terminal of the power-sensing circuit is connected with the power supply input circuit, the power detection
The output end of circuit is connected with the input terminal of the control circuit, and the power-sensing circuit is for detecting drain motor work
When power, and the power signal transmissions that will test are to the control circuit；The control circuit is believed according to the power detected
The on-off of number control switching circuit, the control circuit control the draining by controlling the on-off of the switching circuit
The work and closing of motor.
Embodiment 4:
As shown in Figure 1, the ON-OFF control circuit for reducing drain motor noise also wraps on the basis of embodiment 3
Containing detection circuit of power factor, the input terminal of the detection circuit of power factor is connected with the power supply input circuit, described
The output end of detection circuit of power factor is connected with the input terminal of the control circuit, and the detection circuit of power factor is used for
Power factor when drain motor work is detected, and the power factor signal that will test is transmitted to the control circuit；The control
Circuit processed controls the on-off of the switching circuit according to the power factor signal detected, and the control circuit passes through described in control
The on-off of switching circuit controls the work and closing of the drain motor.
The present invention for reducing the ON-OFF control circuit of drain motor noise working principle:
Control circuit turns on the switch circuit, so that drain motor works, passes through current detection circuit, voltage detecting circuit, power
Any one in detection circuit, detection circuit of power factor is measured in real time drain motor, according to the electric current detected
Signal, voltage signal, power signal, any one in power factor signal judge the operating status of drain motor, that is, sentence
It is full water or non-full water in the cavity of disconnected drain motor operation, when in the cavity of drain motor operation being full water, control electricity
Road controls drain motor by switching circuit and works normally, and when non-full water in the cavity of drain motor operation, control circuit is logical
It crosses switching circuit control drain motor to stop working, had not only reduced the noise of drain motor in this way, but also reduce drain motor
Power consumption, while the temperature rise that drain motor continues working the components such as caused coil is reduced again, extend making for drain motor
Use the service life.
In conclusion the present invention passes through current detection circuit, electricity for reducing the ON-OFF control circuit of drain motor noise
Pressure detection circuit, power-sensing circuit, any one in detection circuit of power factor are measured in real time drain motor, root
Drain motor is judged according to the current signal, voltage signal, power signal, any one in power factor signal that detect
Operating status judges that in the cavity of drain motor operation be full water or non-full water, when being in the cavity of drain motor operation
When full water, control circuit controls drain motor by switching circuit and works normally, when non-full water in the cavity of drain motor operation
When, control circuit controls drain motor by switching circuit and stops working, and has not only reduced the noise of drain motor in this way, but also reduce
The power consumption of drain motor, at the same again reduce drain motor continue working caused by the components such as coil temperature rise, extend
The service life of drain motor.
Particular embodiments described above, pair present invention solves the technical problem that, 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 this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection scope.
Claims (4)
1. a kind of ON-OFF control circuit for reducing drain motor noise, which is characterized in that include power supply input circuit, electric current
Detection circuit, control circuit and switching circuit, the input terminal of the current detection circuit are connected with the power supply input circuit,
The output end of the current detection circuit is connected with the input terminal of the control circuit, and the current detection circuit is for detecting
The operating current of drain motor, and the current signal that will test is transmitted to the control circuit, the output end of the control circuit
It is connected with the input terminal of the switching circuit, the input terminal of the switching circuit is connected with the power supply input circuit, institute
The output end for stating switching circuit is connected with the drain motor power supply line input terminal, and the control circuit described in control by opening
The on-off on powered-down road controls the work and closing of the drain motor.
2. a kind of ON-OFF control circuit for reducing drain motor noise according to claim 1, which is characterized in that institute
The ON-OFF control circuit for reducing drain motor noise stated also includes voltage detecting circuit, the voltage detecting circuit it is defeated
Enter end to be connected with the power supply input circuit, the input terminal phase of the output end of the voltage detecting circuit and the control circuit
Connection, the voltage detecting circuit are used to detect the operating voltage of drain motor, and the voltage signal that will test be transmitted to it is described
Control circuit.
3. a kind of ON-OFF control circuit for reducing drain motor noise according to claim 1 or 2, feature exist
In the ON-OFF control circuit for reducing drain motor noise also includes power-sensing circuit, the power detection electricity
The input terminal on road is connected with the power supply input circuit, and the output end of the power-sensing circuit is defeated with the control circuit
Enter end to be connected, the power-sensing circuit is used to detect power when drain motor work, and the power signal that will test passes
Transport to the control circuit.
4. a kind of ON-OFF control circuit for reducing drain motor noise according to claim 1 or 2 or 3, feature
It is, the ON-OFF control circuit for reducing drain motor noise also includes detection circuit of power factor, the power
The input terminal of factor detection circuit is connected with the power supply input circuit, the output end of the detection circuit of power factor and institute
The input terminal for stating control circuit is connected, the detection circuit of power factor be used for detect drain motor work when power because
Number, and the power factor signal that will test is transmitted to the control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576453.3A CN109713979A (en) | 2018-12-22 | 2018-12-22 | A kind of ON-OFF control circuit for reducing drain motor noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811576453.3A CN109713979A (en) | 2018-12-22 | 2018-12-22 | A kind of ON-OFF control circuit for reducing drain motor noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109713979A true CN109713979A (en) | 2019-05-03 |
Family
ID=66257200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811576453.3A Pending CN109713979A (en) | 2018-12-22 | 2018-12-22 | A kind of ON-OFF control circuit for reducing drain motor noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109713979A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656913U (en) * | 2010-05-12 | 2010-11-24 | 刘跃兵 | Closed loop control system used for adjusting power of motor |
| CN204636250U (en) * | 2015-03-23 | 2015-09-16 | 佛山市顺德区美的洗涤电器制造有限公司 | A kind of dish-washing machine and draining pump operating condition checkout gear thereof |
| CN204993150U (en) * | 2015-09-30 | 2016-01-20 | 浙江迈雷科技有限公司 | Air conditioner coil pipe fan drive ware |
| US20190127903A1 (en) * | 2016-04-18 | 2019-05-02 | Lg Electronics Inc. | Drain pump driving apparatus and laundry treatment machine including the same |
-
2018
- 2018-12-22 CN CN201811576453.3A patent/CN109713979A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656913U (en) * | 2010-05-12 | 2010-11-24 | 刘跃兵 | Closed loop control system used for adjusting power of motor |
| CN204636250U (en) * | 2015-03-23 | 2015-09-16 | 佛山市顺德区美的洗涤电器制造有限公司 | A kind of dish-washing machine and draining pump operating condition checkout gear thereof |
| CN204993150U (en) * | 2015-09-30 | 2016-01-20 | 浙江迈雷科技有限公司 | Air conditioner coil pipe fan drive ware |
| US20190127903A1 (en) * | 2016-04-18 | 2019-05-02 | Lg Electronics Inc. | Drain pump driving apparatus and laundry treatment machine including the same |
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Application publication date: 20190503 |