CN105425781A - Washing machine control panel aging experimental equipment and experimental method - Google Patents
Washing machine control panel aging experimental equipment and experimental method Download PDFInfo
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- CN105425781A CN105425781A CN201510984588.3A CN201510984588A CN105425781A CN 105425781 A CN105425781 A CN 105425781A CN 201510984588 A CN201510984588 A CN 201510984588A CN 105425781 A CN105425781 A CN 105425781A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/23—Pc programming
- G05B2219/23452—Simulate sequence on display to control program, test functions
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
The invention relates to a washing machine control panel aging experimental equipment and experimental method. The washing machine control panel aging experimental equipment is characterized by comprising a square wave generation module which can generate square wave signals of different frequencies to simulate water level frequency in a washing machine barrel, a test water drainage valve, a test water inlet valve and a test motor which have the same model number and brand with those of the water drainage valve, the water inlet valve and the motor of an actual washing machine, an electric generator and resistive loads. Compared with experimental equipment in the prior art, the advantages of the experimental equipment reside in that the water inlet and water drainage process of the washing machine is simulated by using the square wave generation module, the small electric generator is driven by the simulation motor, and then different loads are connected on the electric generator to simulate different motor loads of the washing machine so that the washing machine control panel aging effect can be achieved without using a drop of water, and environment is beatified and cost is saved through the mode.
Description
Technical field
The present invention relates to a kind of washing machine control panel senile experiment equipment and experimental technique.
Background technology
Washing machine control panel senile experiment is identical with washing machine complete machine senile experiment, exactly washing machine control panel is contained on washing machine complete machine, carries out the wash cycle experiment of 5000 times.Wherein, the judgement of washing machine control panel to water level height carrys out perception by frequency, and more high water stage frequency is lower for height of water level, otherwise more low-water level frequency is higher for height of water level.Water level sensor of washing machine is the size strong according to hydraulic pressure, produces different induction reactance, and due to the change of induction reactance in stagefrequency concussion loop, and produce different frequencies, be referred to as stagefrequency.Washing machine control panel, by gathering the mean value of water frequency, then realizes washing and controls.Washing machine standard laundry requirements of process water inlet washing 1 time, water inlet rinsing 2 times.If 5 kilograms of washing machine full load tests, calculate by each about 35 liters of water inlet, the water that a washing machine requirements of process 35*3=105 rises.5000 times, then need with water: 5000*105=525000 liter=525 ton water.If to 10 washing machines---10 sections of washing machine control panels carry out senile experiment, then whole experiment needs more than 5000 ton of water, which results in serious water resource waste.In order to using water wisely, everybody designs a lot of ways, so there is water resource recycling system.A kind of be with cross water filtration after collect in a pond, then water pump in the cistern of eminence, then supply water to washing machine with natural-drop; Another kind is direct for the water collected in pond pump to washing machine, and when water intake valve opened by washing machine, the strong step-down of hydraulic pressure, when hydraulic pressure starts water pump lower than during lower boundary line by force, when hydraulic pressure switches off the pump higher than during upper boundary line by force.The former general water tower not high (what have is placed directly in factory building roof), so hydraulic pressure is strong less, washing machine aquifer yield is less; The latter's starting mode of pump is frequent, and water pump is easily bad.Because water recycles, easy breed bacteria, can foul with water after rear a period of time, needs again to change cycling use of water.
In order to increase the authenticity of senile experiment, often to increase some don't clothing be put in washing machine, clothing, after long water enchroachment (invasion) foam washing is washed, can go bad and rot.Rotten cloth adds water pollution simultaneously, does not dry easier breed bacteria for a long time, thus accelerates the pollution of water, also accelerates the speed again changing recirculated water.People works in this environment and too increases ill probability, also can affect corporate image simultaneously.At the society that people-oriented, need cleaner working environment; And from also needing a clean and tidy environment enterprise, to improve corporate image, simultaneously can also be cost-saving.Therefore, develop a kind of water-saving washing machine control panel senile experiment equipment and very there is realistic meaning.
Summary of the invention
Primary technical matters to be solved by this invention provides a kind of for above-mentioned prior art to be spun off from washing machine complete machine senile experiment by the senile experiment of washing machine control panel, without the need to water, the washing machine control panel senile experiment equipment of predetermined aging effect can be reached again.
The further technical matters to be solved of the present invention provides a kind of for above-mentioned prior art to adopt above-mentioned washing machine control panel senile experiment equipment to carry out the method for washing machine control panel senile experiment.
The present invention solves the technical scheme that above-mentioned primary technical matters adopts: a kind of washing machine control panel senile experiment equipment, it is characterized in that: comprise and can produce different frequency square-wave signal to be used for simulating the square wave generation module of washing machine water inner bucket water bit frequency, with draining valve in actual washing machine, test draining valve that water intaking valve is all identical with brand with the model of motor, test water intaking valve and testing of electric motors, generator and ohmic load; Wherein, the power supply signal input end of described square wave generation module is electrically connected with city, and the stagefrequency signal of described square wave generation module simulation is connected with washing machine control panel; The power supply signal input end Jun Yu city electrical connection of test draining valve and test water intaking valve, the water inlet control terminal of test draining valve passes through the first signaling conversion circuit and square wave generation model calling, with the electrical signal transfer opened or closed by test draining valve to square wave generation module; The draining control terminal of test water intaking valve passes through secondary signal change-over circuit and square wave generation model calling, with the electrical signal transfer opened or closed by test water intaking valve to square wave generation module; Washing machine control panel is connected for controlling test draining valve and test opening and closedown of water intaking valve with the draining control terminal of test draining valve with the water inlet control terminal testing water intaking valve; Testing of electric motors is connected with washing machine control panel, and testing of electric motors is also connected with described generator simultaneously, and described generator is connected with ohmic load.
As improvement, the concrete structure of described secondary signal change-over circuit is: the concrete structure of described secondary signal change-over circuit is: the water inlet control terminal signal of described test water intaking valve connects the positive pole of the first diode, the negative pole of the first diode is connected with the 3rd resistance first end, the positive pole that 3rd resistance second end connects illuminator in the first optocoupler connects, and in the first optocoupler, the negative pole of illuminator connects the zero line of civil power; The positive pole of the second diode connects the zero line of civil power, and the negative pole of the second diode connects the second end of the 3rd resistance; The first end ground connection of receiver in first optocoupler, in first optocoupler, the second end of receiver connects the first end of the second resistance, second end of the second resistance connects the base stage of the first triode, the emitter of the first triode connects+5V stabilized voltage supply, the collector of the first triode and the first end of the 4th resistance, the second end of the 4th resistance is water inlet electric signal and the square wave generation model calling of test water intaking valve; The first end of the first resistance connects+5V stabilized voltage supply, second end of the first resistance connects the base stage of the first triode, the first end of the 5th resistance is connected with the collector of the first triode, second end ground connection of the 5th resistance, the first end of the first electric capacity is connected with the collector of the first triode, the second end ground connection of the first electric capacity.
Improve again, the concrete structure of described first signaling conversion circuit is: the draining of described test draining valve controls the positive pole of terminal signals connection the 3rd diode, the negative pole of the 3rd diode is connected with the 8th resistance first end, the positive pole that 8th resistance second end connects illuminator in the second optocoupler connects, and in the second optocoupler, the negative pole of illuminator connects the zero line of civil power; The positive pole of the 4th diode connects the zero line of civil power, and the negative pole of the 4th diode connects the second end of the 8th resistance; The first end ground connection of receiver in second optocoupler, in second optocoupler, the second end of receiver connects the first end of the 7th resistance, second end of the 7th resistance connects the base stage of the second triode, the emitter of the second triode connects+5V stabilized voltage supply, the collector of the second triode and the first end of the 9th resistance, the second end of the 9th resistance is draining electric signal and the square wave generation model calling of test draining valve; The first end of the 6th resistance connects+5V stabilized voltage supply, second end of the 6th resistance connects the base stage of the second triode, the first end of the tenth resistance is connected with the collector of the second triode, second end ground connection of the tenth resistance, the first end of the second electric capacity is connected with the collector of the second triode, the second end ground connection of the second electric capacity.
The present invention solves the technical scheme that above-mentioned further technical matters adopts: a kind of method adopting the washing machine control panel senile experiment equipment of said structure to carry out washing machine control panel senile experiment, it is characterized in that: washing machine control panel realizes washing machine control panel senile experiment by simulation washing process, specifically comprise: the first control simulation water intaking valve of washing machine control panel is opened, after square wave generation module detects simulation water intaking valve opens, start to simulate water inlet process, stagefrequency reduces by square wave generation module gradually, simultaneously square wave generation module by stagefrequency Real-time Feedback to washing machine control panel, when washing machine control panel detects that stagefrequency meets water level frequency, close simulation water intaking valve, when square wave generation module detects the closedown of simulation water intaking valve, square wave generation module keeps current level frequency constant, now, washing machine control panel exports control signal and is started by testing of electric motors to testing of electric motors, now testing of electric motors drives the generator be connected with ohmic load, the motor load of washing machine is simulated by generator and ohmic load, thus the operation of simulation Actual laundering, and wait for that wash time is complete, after wash time terminates, washing machine control panel exports control signal and is closed by testing of electric motors to testing of electric motors, simultaneously, washing machine control panel control simulation draining valve is opened, after square wave generation module detects simulation draining valve opens, start to simulate drainage procedure, stagefrequency increases by square wave generation module gradually, when stagefrequency arrives the empty bucket frequency pre-set, stagefrequency is fixed on empty bucket frequency by square wave generation module,
When washing machine control panel needs again to simulate washing process, repeat aforesaid operations.
Compared with prior art, the invention has the advantages that: the water inlet and the drainage procedure that use square wave generation module simulation washing machine, small generator is driven with simulated machine, generator connects different loads again to simulate different motor for washer load, by such mode, water just need not can reach the effect of aging washing machine control panel, beautify environment simultaneously, saved cost.
Accompanying drawing explanation
Fig. 1 is the block diagram of washing machine control panel senile experiment equipment in the embodiment of the present invention.
Fig. 2 is the first signaling conversion circuit schematic diagram in the embodiment of the present invention;
Fig. 3 is secondary signal change-over circuit schematic diagram in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Washing machine control panel senile experiment equipment as shown in Figure 1, it comprises the square wave generation module 1 for simulation washing machine water inner bucket water bit frequency, with draining valve in actual washing machine, test draining valve 2 that water intaking valve is all identical with brand with the model of motor, test water intaking valve 3 and testing of electric motors 4, generator 5 and ohmic load 6; Wherein, the power supply signal input end of described square wave generation module 1 is electrically connected with city, and the stagefrequency signal of described square wave generation module simulation 1 is connected with washing machine control panel 7; The power supply signal input end Jun Yu city electrical connection of test draining valve 2 and test water intaking valve 3; The water inlet control terminal of test draining valve 2 is connected with square wave generation module 1 by the first signaling conversion circuit 8, with the electrical signal transfer opened or closed by test draining valve 2 to square wave generation model calling; The draining control terminal of test water intaking valve 3 is connected with square wave generation module 1 by secondary signal change-over circuit 9, with the electrical signal transfer opened or closed by test water intaking valve 3 to square wave generation model calling; Washing machine control panel 7 is connected for controlling test draining valve 2 and test opening and closedown of water intaking valve 3 with the draining control terminal of test draining valve 2 with the water inlet control terminal testing water intaking valve 3; Testing of electric motors 4 is connected with washing machine control panel 7, and testing of electric motors 4 is also connected with described generator 5 simultaneously, and described generator 5 is connected with ohmic load 6.
Use water inlet and the drainage procedure of square wave generation module simulation washing machine, use simulated machine drive electrical generators, generator connects different loads again to simulate different motor for washer load.By such mode, water just need not can reach the effect of aging washing machine control panel, beautify environment simultaneously, saved cost.
The concrete structure of described first signaling conversion circuit is: the draining of described test draining valve controls the positive pole of terminal signals connection the 3rd diode D3, the negative pole of the 3rd diode D3 is connected with the 8th resistance R8 first end, the positive pole that 8th resistance R8 second end connects illuminator in the second optocoupler IC2 connects, and in the second optocoupler IC2, the negative pole of illuminator connects the zero line of civil power; The positive pole of the 4th diode D4 connects the zero line of civil power, and the negative pole of the 4th diode D4 connects second end of the 8th resistance R8; The first end ground connection of receiver in second optocoupler IC2, in second optocoupler IC2, the second end of receiver connects the first end of the 7th resistance R7, second end of the 7th resistance R7 connects the base stage of the second triode Q3, the emitter of the second triode Q3 connects+5V stabilized voltage supply, the collector of the second triode Q3 and the first end of the 9th resistance R9, second end of the 9th resistance R9 is that the draining electric signal testing draining valve is connected with square wave generation module 1; The first end of the 6th resistance R6 connects+5V stabilized voltage supply, second end of the 6th resistance R6 connects the base stage of the second triode Q2, the first end of the tenth resistance R10 is connected with the collector of the second triode Q2, the second end ground connection of the tenth resistance R10, the first end of the second electric capacity C2 is connected with the collector of the second triode Q2, the second end ground connection of the second electric capacity C2 is shown in Figure 2.
The concrete structure of described secondary signal change-over circuit is: the water inlet control terminal signal of described test water intaking valve connects the positive pole of the first diode D1, the negative pole of the first diode D1 is connected with the 3rd resistance R3 first end, the positive pole that 3rd resistance R3 second end connects illuminator in the first optocoupler IC1 connects, and in the first optocoupler IC1, the negative pole of illuminator connects the zero line of civil power; The positive pole of the second diode D2 connects the zero line of civil power, and the negative pole of the second diode D2 connects second end of the 3rd resistance R3; The first end ground connection of receiver in first optocoupler IC1, in first optocoupler IC1, the second end of receiver connects the first end of the second resistance R2, second end of the second resistance R2 connects the base stage of the first triode Q1, the emitter of the first triode Q1 connects+5V stabilized voltage supply, the collector of the first triode Q1 and the first end of the 4th resistance R4, second end of the 4th resistance R4 is that the water inlet electric signal testing water intaking valve is connected with square wave generation module 1; The first end of the first resistance R1 connects+5V stabilized voltage supply, second end of the first resistance R1 connects the base stage of the first triode Q1, the first end of the 5th resistance R5 is connected with the collector of the first triode Q1, the second end ground connection of the 5th resistance R5, the first end of the first electric capacity C1 is connected with the collector of the first triode, the second end ground connection of the first electric capacity C1 is shown in Figure 3.
The method adopting above-mentioned washing machine control panel senile experiment equipment to carry out washing machine control panel senile experiment is: washing machine control panel realizes washing machine control panel senile experiment by simulation washing process, specifically comprise: the first control simulation water intaking valve of washing machine control panel is opened, after square wave generation module detects simulation water intaking valve opens, start to simulate water inlet process, stagefrequency reduces by square wave generation module gradually, simultaneously square wave generation module by stagefrequency Real-time Feedback to washing machine control panel; When washing machine control panel detects that stagefrequency meets water level frequency, close simulation water intaking valve, when square wave generation module detects the closedown of simulation water intaking valve, square wave generation module keeps current level frequency constant, now, washing machine control panel exports control signal and is started by testing of electric motors to testing of electric motors, now testing of electric motors drives the generator be connected with ohmic load, the motor load of washing machine is simulated by generator and ohmic load, thus the operation of simulation Actual laundering, and wait for that wash time is complete; After wash time terminates, washing machine control panel exports control signal and is closed by testing of electric motors to testing of electric motors, simultaneously, washing machine control panel control simulation draining valve is opened, after square wave generation module detects simulation draining valve opens, start to simulate drainage procedure, stagefrequency increases by square wave generation module gradually, when stagefrequency arrives the empty bucket frequency pre-set, stagefrequency is fixed on empty bucket frequency by square wave generation module;
When washing machine control panel needs again to simulate washing process, repeat aforesaid operations.
As can be seen here, as long as increase a square wave generation module simulation stagefrequency, and change stagefrequency according to the on off state of simulation water intaking valve and simulation draining valve, just can reach the effect of real washing machine inflow and draining.
Claims (4)
1. a washing machine control panel senile experiment equipment, it is characterized in that: comprise and can produce different frequency square-wave signal to be used for simulating the square wave generation module of washing machine water inner bucket water bit frequency, with draining valve in actual washing machine, test draining valve that water intaking valve is all identical with brand with the model of motor, test water intaking valve and testing of electric motors, generator and ohmic load; Wherein, the power supply signal input end of described square wave generation module is electrically connected with city, and the stagefrequency signal of described square wave generation module simulation is connected with washing machine control panel; The power supply signal input end Jun Yu city electrical connection of test draining valve and test water intaking valve, the water inlet control terminal of test draining valve passes through the first signaling conversion circuit and square wave generation model calling, with the electrical signal transfer opened or closed by test draining valve to square wave generation module; The draining control terminal of test water intaking valve passes through secondary signal change-over circuit and square wave generation model calling, with the electrical signal transfer opened or closed by test water intaking valve to square wave generation module; Washing machine control panel is connected for controlling test draining valve and test opening and closedown of water intaking valve with the draining control terminal of test draining valve with the water inlet control terminal testing water intaking valve; Testing of electric motors is connected with washing machine control panel, and testing of electric motors is also connected with described generator simultaneously, and described generator is connected with ohmic load.
2. washing machine control panel senile experiment equipment according to claim 1, it is characterized in that: the concrete structure of described secondary signal change-over circuit is: the water inlet control terminal signal of described test water intaking valve connects the positive pole of the first diode, the negative pole of the first diode is connected with the 3rd resistance first end, the positive pole that 3rd resistance second end connects illuminator in the first optocoupler connects, and in the first optocoupler, the negative pole of illuminator connects the zero line of civil power; The positive pole of the second diode connects the zero line of civil power, and the negative pole of the second diode connects the second end of the 3rd resistance; The first end ground connection of receiver in first optocoupler, in first optocoupler, the second end of receiver connects the first end of the second resistance, second end of the second resistance connects the base stage of the first triode, the emitter of the first triode connects+5V stabilized voltage supply, the collector of the first triode and the first end of the 4th resistance, the second end of the 4th resistance is water inlet electric signal and the square wave generation model calling of test water intaking valve; The first end of the first resistance connects+5V stabilized voltage supply, second end of the first resistance connects the base stage of the first triode, the first end of the 5th resistance is connected with the collector of the first triode, second end ground connection of the 5th resistance, the first end of the first electric capacity is connected with the collector of the first triode, the second end ground connection of the first electric capacity.
3. washing machine control panel senile experiment equipment according to claim 1, it is characterized in that: the concrete structure of described first signaling conversion circuit is: the draining of described test draining valve controls the positive pole of terminal signals connection the 3rd diode, the negative pole of the 3rd diode is connected with the 8th resistance first end, the positive pole that 8th resistance second end connects illuminator in the second optocoupler connects, and in the second optocoupler, the negative pole of illuminator connects the zero line of civil power; The positive pole of the 4th diode connects the zero line of civil power, and the negative pole of the 4th diode connects the second end of the 8th resistance; The first end ground connection of receiver in second optocoupler, in second optocoupler, the second end of receiver connects the first end of the 7th resistance, second end of the 7th resistance connects the base stage of the second triode, the emitter of the second triode connects+5V stabilized voltage supply, the collector of the second triode and the first end of the 9th resistance, the second end of the 9th resistance is draining electric signal and the square wave generation model calling of test draining valve; The first end of the 6th resistance connects+5V stabilized voltage supply, second end of the 6th resistance connects the base stage of the second triode, the first end of the tenth resistance is connected with the collector of the second triode, second end ground connection of the tenth resistance, the first end of the second electric capacity is connected with the collector of the second triode, the second end ground connection of the second electric capacity.
4. one kind adopts washing machine control panel senile experiment equipment as claimed in claim 1 to carry out the method for washing machine control panel senile experiment, it is characterized in that: washing machine control panel realizes washing machine control panel senile experiment by simulation washing process, specifically comprise: the first control simulation water intaking valve of washing machine control panel is opened, after square wave generation module detects simulation water intaking valve opens, start to simulate water inlet process, stagefrequency reduces by square wave generation module gradually, simultaneously square wave generation module by stagefrequency Real-time Feedback to washing machine control panel; When washing machine control panel detects that stagefrequency meets water level frequency, close simulation water intaking valve, when square wave generation module detects the closedown of simulation water intaking valve, square wave generation module keeps current level frequency constant, now, washing machine control panel exports control signal and is started by testing of electric motors to testing of electric motors, now testing of electric motors drives the generator be connected with ohmic load, the motor load of washing machine is simulated by generator and ohmic load, thus the operation of simulation Actual laundering, and wait for that wash time is complete; After wash time terminates, washing machine control panel exports control signal and is closed by testing of electric motors to testing of electric motors, simultaneously, washing machine control panel control simulation draining valve is opened, after square wave generation module detects simulation draining valve opens, start to simulate drainage procedure, stagefrequency increases by square wave generation module gradually, when stagefrequency arrives the empty bucket frequency pre-set, stagefrequency is fixed on empty bucket frequency by square wave generation module;
When washing machine control panel needs again to simulate washing process, repeat aforesaid operations.
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| CN105425781B (en) | 2018-02-02 |
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Address after: 315327 Ningbo Province, Hangzhou Bay New District, the town of the East Yuan Xiang Village Industrial Park, No. two weft Road, No. 758 Applicant after: Zhejiang zhuoao Polytron Technologies Inc Address before: 315327 Ningbo Province, Cixi City, the town of an industrial zone in the east of the town of Wei Wei Road No. 758, No. two, No. Applicant before: Ningbo ZuoAo Electronics Technology Co., Ltd. |
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