CN103871313B - Three crystal triodes are utilized to control automatic pumping teaching demonstration device - Google Patents
Three crystal triodes are utilized to control automatic pumping teaching demonstration device Download PDFInfo
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- CN103871313B CN103871313B CN201410124931.2A CN201410124931A CN103871313B CN 103871313 B CN103871313 B CN 103871313B CN 201410124931 A CN201410124931 A CN 201410124931A CN 103871313 B CN103871313 B CN 103871313B
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Abstract
This patent relates to the use of minimum crystal triode and controls to draw water apparatus for demonstrating.It includes water tower, water tank, motor and water supply control circuit, described water supply control circuit one end connects water tower, the other end is sequentially connected with motor and water tank, described water tower is provided with three inductive probes, one is earth terminal inductive probe, one is upper limit inductive probe, one is lower limit inductive probe, wherein upper limit inductive probe connects crystal triode B1, lower limit inductive probe is connected with the input of evaluator, water supply control circuit is provided with a voltage identifier and three crystal triodes, described three crystal triodes are respectively crystal triode B1, crystal triode B2 and crystal triode B3, one of them inductive probe is connected on the input of voltage identifier by crystal triode B1；Another inductive probe is connected with the input of voltage identifier.This patent is made up of minimum crystal triode separation original paper, can add water to water tower by control circuit control water tank.
Description
Technical field
The present invention relates to a kind of water supply installation, utilize minimum crystal triode to control to draw water teaching demonstration device particularly to a kind of.
Background technology
Crystal triode is a kind of control element, the effect of crystal triode is the biggest, it may be said that do not have the invention of crystal triode just there is no such variation of advanced information society, but at present in general high school senior middle school current techique class and Physics Classroom Teaching, when explaining the rudimentary knowledge of electronic component crystal triode, owing to lacking demonstration instrument, student is the most readily understood, student how is allowed to understand the switch performance of crystal triode, the problem having become a long-standing problem physical teachers in middle school.
Summary of the invention
It is contemplated that prominent a kind of teaching demonstration device utilizing crystal triode on-off action to realize.
Of the present invention three crystal triodes are utilized to control automatic pumping teaching demonstration devices, including water tower, water tank, motor and water supply control circuit, described water supply control circuit one end connects water tower, the other end is sequentially connected with motor and water tank, described water tower is provided with three inductive probes, one is earth terminal inductive probe, one is upper limit inductive probe, one is lower limit inductive probe, wherein upper limit inductive probe connecting triode B1, lower limit inductive probe is connected with the input of voltage identifier, water supply control circuit is provided with a voltage identifier and three crystal triodes, described three crystal triodes are respectively crystal triode B1, crystal triode B2 and crystal triode B3, one of them inductive probe is connected on the input of evaluator by crystal triode B1；Another inductive probe is connected with the input of voltage identifier, and the outfan of voltage identifier is sequentially connected with crystal triode B3, motor and water tank；Connecting crystal triode B2 between outfan and the input of voltage identifier of described crystal triode B1, described 3rd inductive probe is sequentially connected with power supply and crystal triode B3.
Preferably, described inductive probe has three, and the 3rd inductive probe is earth terminal inductive probe, first inductive probe is upper limit inductive probe, second inductive probe is lower limit inductive probe, and wherein upper limit inductive probe connects crystal triode B1, and lower limit inductive probe is connected with the input of evaluator.
Preferably, described motor is 12V electric pump.
Preferably, described power supply be output voltage be common No. 1 aneroid battery accumulator jar or the voltage-stabilizing working power supply of 12V.
Preferably, described crystal triode B1 is 9013NPN type audion, and B2 is 9012PNP type audion, and B3 is C3807NPN type audion.
Preferably, described voltage identifier is the 3.1V Zener diode being serially connected and 2K Ω resistance.
Of the present invention minimum crystal triode is utilized to control to draw water apparatus for demonstrating, by water supply control circuit, water tower and water tank are linked together, when the inductive probe on water tower senses in time adding water or stop the signal adding water, controlled water tank by water supply control circuit to add water to water tower, this patent optimizes electronic circuit, minimum discrete component is utilized to make automatic pumping teaching demonstration device, circuit is the most clear, student need not feel confused for circuit check, learning interest is effectively improved, it is simple to understand.
Accompanying drawing explanation
Fig. 1 is the attachment structure schematic diagram of the present invention.
Fig. 2 is the circuit connection diagram of the present invention.
1-water tank in figure；2-water tower；3-motor；4-water supply control circuit.
Detailed description of the invention
The 5 liters of plastics oil drums rounding body 2/3 do ground water tank, 4/5 Huiyuan Orange Juice Beverage pail does water tower, power electric pump 12V difficult to understand does pumping motor, control circuit crystal triode B1 is 9013 types, crystal triode B2 is 9012 types, crystal triode B3 is C3807 type, voltage identifier is 3.1V Zener diode and 2K Ω resistant series composition, the element wire of controller is welded on omnipotent wiring board, they are separately fixed on the plank of long 40CM width 20CM, the shape having circular platform above made by three composition supports of the reinforcing bar of the long 20cm of Water tower foundation diameter 6mm, water tower is fixed on platform.Make a call to two apertures at the bottom of the water tower parallel 2CM of being separated by of high 3CM to fix two-screw and do earth terminal inductive probe and lower limit inductive probe respectively, the top suitable position of water tower plays an aperture fixed screw as upper limit inductive probe, and its lower limit inductive probe is connected on the input of voltage identifier by crystal triode B1；Upper limit inductive probe is connected with the input of voltage identifier, and the outfan of voltage identifier is sequentially connected with crystal triode B3, motor 3 and water tank 1；Connecting crystal triode B2 between outfan and the input of voltage identifier of crystal triode B1, earth terminal inductive probe is sequentially connected with power supply and crystal triode B3.Power supply be output voltage be common No. 1 aneroid battery, accumulator jar or the voltage-stabilizing working power supply of 12V；Their line is accessed the correspondence position of circuit board.Connect water tank with flexible rubber hose and water tower, water outlet of water tank are connected in the water inlet of column head.
Of the present invention minimum crystal triode is utilized to control to draw water apparatus for demonstrating, including water tower 2, water tank 1, motor 3 and water supply control circuit 4, described water supply control circuit 4 one end connects water tower 2, the other end is sequentially connected with motor 3 and water tank 1, described water tower 2 is provided with a upper limit inductive probe, one lower limit inductive probe and an earth terminal inductive probe, described inductive probe is connected electrically in water supply control circuit 4 respectively, described water supply control circuit 4 is provided with an evaluator and three crystal triodes, described three crystal triodes are respectively crystal triode B1, crystal triode B2 and crystal triode B3, wherein upper limit inductive probe is connected on the input of evaluator by crystal triode B1；Lower limit inductive probe is connected with the input of evaluator, and the outfan of evaluator is sequentially connected with crystal triode B3, motor 3 and water tank 1；Connecting crystal triode B2 between outfan and the input of evaluator of crystal triode B1, earth terminal inductive probe is sequentially connected with power supply and crystal triode B3.Power supply of the present invention be output voltage be common No. 1 aneroid battery, accumulator jar or the voltage-stabilizing working power supply of 12V；Described motor 3 is 12V electric pump, and described crystal triode B1 is 9013NPN type audion, and B2 is 9012PNP type audion, and B3 is C3807NPN type audion.Described evaluator is composed in series by 3.1V Zener diode and 2000 ohmages.
nullInductive probe described in this patent has three，One is earth terminal inductive probe，One is lower limit inductive probe，One is upper limit inductive probe，Upper limit inductive probe is to control the cistern water level upper limit，I.e. high water level，When cistern water level is less than lower limit inductive probe，The evaluator output high potential signal more than 1v，Crystal triode B3 turns on，Pumping motor energising is drawn water，Simultaneously by resistance R2，Crystal triode B2 obtains low spot position signal conduction allows evaluator keep high potential to export by resistance R1 again，In order to avoid lower limit inductive probe end in contact water reduces evaluator current potential，So crystal triode B3 is constantly in conducting state，Motor draws water always，When cistern water level rises and touches upper limit inductive probe, the base stage of crystal triode B1 obtains high potential conducting，Evaluator is made to export electronegative potential，Crystal triode B3 ends，Motor power-off stops pumping.When cistern water level is less than lower limit inductive probe, evaluator is connected to power supply 12V by R3 and exports high potential signal, and crystal triode B3 turns on again, and electrical power starts again to draw water, and so moves in circles and carries out, and reaches the purpose of auto-controlled water-pumping.
First pour 4/5ths water of volume during use to water tank 1 into, turn on the power and be passed through 12V power supply.When water tower 2 is anhydrous, water tower earth terminal inductive probe evaluator output high potential signal, crystal triode B3 turns on, pumping motor 3 energising is drawn water, when water tower level is higher than lower limit inductive probe, during less than upper limit inductive probe, crystal triode B3 is constantly in conducting state, resistance R2 crystal triode B2 obtains low spot position signal conduction allows evaluator keep high potential to export by resistance R1 again, motor 3 draws water always, when water tank 1 water level rises contact upper limit inductive probe, the base stage of crystal triode B1 obtains high potential conducting, evaluator output electronegative potential, crystal triode B3 cut-off motor 3 power-off stops pumping.
Claims (5)
- null1. utilize three crystal triodes to control automatic pumping teaching demonstration device，Including water tower (1)、Water tank (2)、Motor (3) and water supply control circuit (4)，Described water supply control circuit (4) one end connects water tower (1)，The other end is sequentially connected with motor (3) and water tank (2)，It is characterized in that: described water tower (1) is provided with several inductive probes，Described inductive probe is connected electrically in water supply control circuit (4) respectively，Described water supply control circuit (4) is provided with a voltage identifier and three crystal triodes，Described three crystal triodes are respectively crystal triode B1、Crystal triode B2 and crystal triode B3，Described inductive probe has three，It is respectively the first inductive probe、Second inductive probe and the 3rd inductive probe，Wherein the first inductive probe is connected on the input of voltage identifier by crystal triode B1；Second inductive probe is connected with the input of voltage identifier, and the outfan of voltage identifier is sequentially connected with crystal triode B3, motor (3) and water tank (2)；Crystal triode B2 is connected between outfan and the input of voltage identifier of described crystal triode B1；Described 3rd inductive probe is sequentially connected with power supply and crystal triode B3.
- Utilize three crystal triodes to control automatic pumping teaching demonstration devices the most as claimed in claim 1, it is characterised in that: described power supply be output voltage be common No. 1 aneroid battery, accumulator jar or the voltage-stabilizing working power supply of 12V.
- Three crystal triodes are utilized to control automatic pumping teaching demonstration device the most as claimed in claim 1 or 2, it is characterised in that: described motor (3) is 12V electric pump.
- Three crystal triodes are utilized to control automatic pumping teaching demonstration device the most as claimed in claim 3, it is characterised in that: described crystal triode B1 is 9013NPN type audion, and B2 is 9012PNP type audion, and B3 is C3807NPN type audion.
- Three crystal triodes are utilized to control automatic pumping teaching demonstration device the most as claimed in claim 3, it is characterised in that: described voltage identifier is 1/2W3.1V Zener diode and 1/4W2K Ω resistant series composition, and wherein the negative pole of Zener diode is input.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410124931.2A CN103871313B (en) | 2014-03-31 | 2014-03-31 | Three crystal triodes are utilized to control automatic pumping teaching demonstration device |
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| CN201410124931.2A CN103871313B (en) | 2014-03-31 | 2014-03-31 | Three crystal triodes are utilized to control automatic pumping teaching demonstration device |
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| CN103871313B true CN103871313B (en) | 2016-08-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103943014B (en) * | 2014-05-13 | 2019-05-21 | 雷建设 | Simple triode controls automatic pumping teaching demonstration device |
| CN104215299B (en) * | 2014-09-21 | 2017-09-01 | 岳景睿 | A kind of culvert water-depth measurement circuit |
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|---|---|---|---|---|
| CN201017517Y (en) * | 2007-03-19 | 2008-02-06 | 严俊 | Experimental device using electric relay to execute water level alarming |
| CN201266451Y (en) * | 2008-06-26 | 2009-07-01 | 上海展天仪器设备有限公司 | Water tower experimental apparatus |
| CN202142227U (en) * | 2011-08-03 | 2012-02-08 | 雷建设 | Crystal triode switch characteristic and relay self-locking principle demonstrator |
| CN203444352U (en) * | 2013-09-04 | 2014-02-19 | 雷建设 | Fully-automatic electronic control water pumping device |
| CN203787010U (en) * | 2014-03-31 | 2014-08-20 | 雷建设 | Automatic pumping teaching demonstration device controlled by three crystal triodes |
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2014
- 2014-03-31 CN CN201410124931.2A patent/CN103871313B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017517Y (en) * | 2007-03-19 | 2008-02-06 | 严俊 | Experimental device using electric relay to execute water level alarming |
| CN201266451Y (en) * | 2008-06-26 | 2009-07-01 | 上海展天仪器设备有限公司 | Water tower experimental apparatus |
| CN202142227U (en) * | 2011-08-03 | 2012-02-08 | 雷建设 | Crystal triode switch characteristic and relay self-locking principle demonstrator |
| CN203444352U (en) * | 2013-09-04 | 2014-02-19 | 雷建设 | Fully-automatic electronic control water pumping device |
| CN203787010U (en) * | 2014-03-31 | 2014-08-20 | 雷建设 | Automatic pumping teaching demonstration device controlled by three crystal triodes |
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