CN202976627U - Lightning and thunder simulating circuit - Google Patents
Lightning and thunder simulating circuit Download PDFInfo
- Publication number
- CN202976627U CN202976627U CN 201220706121 CN201220706121U CN202976627U CN 202976627 U CN202976627 U CN 202976627U CN 201220706121 CN201220706121 CN 201220706121 CN 201220706121 U CN201220706121 U CN 201220706121U CN 202976627 U CN202976627 U CN 202976627U
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Abstract
The utility model provides a lightning and thunder simulating circuit. The lightning and thunder simulating circuit is characterized by comprising a power circuit, a first-stage oscillating circuit, a first-stage transformer, a second-stage oscillating circuit, a second-stage transformer and two discharge electrodes. The lightning and thunder simulating circuit has the beneficial effects of being simple in structure, safe and reliable, and is convenient for students to directly and visually know the lightning and thunder occurrence mechanism.
Description
Technical field
The utility model relates to a kind of teaching demonstration device, specifically, relates in particular to a kind of emulation fulmination circuit.
Background technology
Compulsory education curricular standard experiment textbook in the teaching of senior class " science " volume two electric unit, has the Popular Science Education of " thunder and lightning ", is breakneck but want the genesis mechanism of one's own experience " thunder and lightning ".
How to help the student to understand the generation of thunder and lightning, rest on often on books, traditional hand induction machine is large because of air humidity, often makes moist just to be usually used in teaching; This instrument utilizes modern electronic technology, dry cell power supply, vibrates by transistor, and multistage multiplication of voltage electrifies, and is not subjected to the impact of environment, is easy to keeping, and is easy to operate.Simultaneously, hand induction machine is also directly perceived not, is unfavorable for that the student gets information about the overall process of the formation of the generation of electric discharge phenomena, thunder and lightning, thunderbolt, lightning-arrest method.
The shortcoming of prior art is: do not have a kind of simple in structure, the thunder and lightning generation instruments used for education that reliability is high.
The utility model content
The utility model purpose is to provide a kind of simple in structure, safe and reliable emulation fulmination circuit, is convenient to student's visual pattern and understands the thunder and lightning genesis mechanism.
For achieving the above object, the utility model is explained a kind of emulation fulmination circuit, and its key is: be comprised of power circuit, one-level oscillatory circuit, one-level transformer, secondary oscillatory circuit, secondary transformer and two sparking electrodes;
Wherein power circuit is composed in series by dry cell batteries and switch, and a termination dry cell batteries of switch is anodal, and the other end is that power circuit is anodal, described dry cell batteries minus earth;
Described one-level oscillatory circuit is provided with the first resistance, this the first resistance one termination power circuit anode, the base stage of another termination the first triode, the grounded emitter of this first triode, collector connects the base stage of the second triode, the collector of described the second triode connects the power circuit positive pole, connect the base stage of described the first triode after emitter string first electric capacity of the second triode, the emitter of this second triode is also gone here and there ground connection after the low-voltage coil of described one-level transformer, and the high-tension coil of described one-level transformer connects described secondary oscillatory circuit.
described secondary oscillatory circuit is provided with the first diode, the anode of this first diode connects described one-level transformer high-voltage coil first end, negative electrode connects the second resistance one end, connect one-level transformer high-voltage coil the second end after this second resistance string the 3rd resistance, connect described one-level transformer high-voltage coil the second end after common port string second electric capacity of described the second resistance and the 3rd resistance, after the common port string bilateral diode of this second resistance and the 3rd resistance, connect the trigger end of bidirectional triode thyristor, the first described one-level transformer high-voltage coil the second end of termination of this bidirectional triode thyristor, the negative electrode of described first diode of the second termination of bidirectional triode thyristor, connect an end of described secondary transformer low-voltage coil after negative electrode string the 3rd electric capacity of the first diode, described one-level transformer high-voltage coil the second end of another termination of this secondary transformer low-voltage coil,
Described secondary transformer high-tension coil two ends connect respectively a described sparking electrode.
Switch on closure, the direct current of dry cell output be through after 2 vibrations and boosting, and concentration of energy when furthering two sparking electrodes, electric arc just occurs between two sparking electrodes on two sparking electrodes, the thunder and lightning of occurring in nature also just occurred.But the energy of this electric arc is still limited, can go out thunderous sound by the sound effect control breadboardin, improves the true effect of apparatus for demonstrating.
Also be provided with the sound effect control circuit of thunderous sound, this sound effect control circuit comprises reset switch, this reset switch one described power circuit of termination is anodal, the power end of another termination speech chip, the base stage of the output termination amplifying triode of this speech chip, the grounded emitter of this amplifying triode after collector string loudspeaker, connects described reset switch.
The beneficial effects of the utility model are: simple in structure, safe and reliable, and be convenient to student's visual pattern and understand the thunder and lightning genesis mechanism.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1: a kind of emulation fulmination circuit is characterized in that: sound effect control circuit and two sparking electrodes by power circuit, one-level oscillatory circuit, one-level transformer T1, secondary oscillatory circuit, secondary transformer T2, thunderous sound form;
Wherein power circuit is composed in series by dry cell batteries and K switch 1, and a termination dry cell batteries of K switch 1 is anodal, and the other end is that power circuit is anodal, described dry cell batteries minus earth;
described one-level oscillatory circuit is provided with the first resistance R 1, these the first resistance R 1 one termination power circuit anodes, the base stage of another termination the first triode Q1, the grounded emitter of this first triode Q1, collector connects the base stage of the second triode Q2, the collector of described the second triode Q2 connects the power circuit positive pole, connect the base stage of described the first triode Q1 after emitter string the first capacitor C 1 of the second triode Q2, the emitter of this second triode Q2 is also gone here and there ground connection after the low-voltage coil of described one-level transformer T1, the high-tension coil of described one-level transformer T1 connects described secondary oscillatory circuit.
described secondary oscillatory circuit is provided with the first diode D1, the anode of this first diode D1 connects described one-level transformer T1 high-tension coil first end, negative electrode connects the second resistance R 2 one ends, connect one-level transformer T1 high-tension coil the second end after these the second resistance R 2 string the 3rd resistance R 3, connect described one-level transformer T1 high-tension coil the second end after common port string second capacitor C 2 of described the second resistance R 2 and the 3rd resistance R 3, after the common port string bilateral diode D2 of this second resistance R 2 and the 3rd resistance R 3, connect the trigger end of bidirectional triode thyristor S, the first described one-level transformer of termination T1 high-tension coil the second end of this bidirectional triode thyristor S, the negative electrode of described the first diode D1 of the second termination of bidirectional triode thyristor S, connect an end of described secondary transformer T2 low-voltage coil after negative electrode string the 3rd capacitor C 3 of the first diode D1, the described one-level transformer of another termination T1 high-tension coil second end of this secondary transformer T2 low-voltage coil,
Described secondary transformer T2 high-tension coil two ends connect respectively a described sparking electrode.
The sound effect control circuit comprises reset switch K2, this reset switch K2 one described power circuit of termination is anodal, the power end of another termination speech chip U, the base stage of the output termination amplifying triode Q3 of this speech chip U, the grounded emitter of this amplifying triode Q3, after collector string loudspeaker B, meet described reset switch K2.
Claims (2)
1. an emulation fulmination circuit, is characterized in that: be comprised of power circuit, one-level oscillatory circuit, one-level transformer (T1), secondary oscillatory circuit, secondary transformer (T2) and two sparking electrodes;
Wherein power circuit is composed in series by dry cell batteries and switch (K1), and a termination dry cell batteries of switch (K1) is anodal, and the other end is that power circuit is anodal, described dry cell batteries minus earth;
described one-level oscillatory circuit is provided with the first resistance (R1), this the first resistance (R1) termination power circuit anode, the base stage of another termination the first triode (Q1), the grounded emitter of this first triode (Q1), collector connects the base stage of the second triode (Q2), the collector of described the second triode (Q2) connects the power circuit positive pole, connect the base stage of described the first triode (Q1) after emitter string first electric capacity (C1) of the second triode (Q2), the emitter of this second triode (Q2) is also gone here and there ground connection after the low-voltage coil of described one-level transformer (T1), the high-tension coil of described one-level transformer (T1) connects described secondary oscillatory circuit,
described secondary oscillatory circuit is provided with the first diode (D1), the anode of this first diode (D1) connects described one-level transformer (T1) high-tension coil first end, negative electrode connects the second resistance (R2) end, connect one-level transformer (T1) high-tension coil the second end after this second resistance (R2) string the 3rd resistance (R3), connect described one-level transformer (T1) high-tension coil the second end after common port string second electric capacity (C2) of described the second resistance (R2) and the 3rd resistance (R3), after the common port string bilateral diode (D2) of this second resistance (R2) and the 3rd resistance (R3), connect the trigger end of bidirectional triode thyristor (S), the first described one-level transformer of termination (T1) high-tension coil second end of this bidirectional triode thyristor (S), the negative electrode of described the first diode of the second termination of bidirectional triode thyristor (S) (D1), connect an end of described secondary transformer (T2) low-voltage coil after negative electrode string the 3rd electric capacity (C3) of the first diode (D1), the described one-level transformer of another termination (T1) high-tension coil second end of this secondary transformer (T2) low-voltage coil,
Described secondary transformer (T2) high-tension coil two ends connect respectively a described sparking electrode.
2. emulation fulmination circuit according to claim 1, it is characterized in that: the sound effect control circuit that also is provided with thunderous sound, this sound effect control circuit comprises reset switch (K2), this reset switch (K2) described power circuit of termination is anodal, the power end of another termination speech chip (U), the base stage of the output termination amplifying triode (Q3) of this speech chip (U), the grounded emitter of this amplifying triode (Q3), after collector string loudspeaker (B), connect described reset switch (K2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706121 CN202976627U (en) | 2012-12-19 | 2012-12-19 | Lightning and thunder simulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706121 CN202976627U (en) | 2012-12-19 | 2012-12-19 | Lightning and thunder simulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976627U true CN202976627U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220706121 Expired - Fee Related CN202976627U (en) | 2012-12-19 | 2012-12-19 | Lightning and thunder simulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513231A (en) * | 2016-01-12 | 2016-04-20 | 苏州华电电气股份有限公司 | Emulational sound-light alarming device |
-
2012
- 2012-12-19 CN CN 201220706121 patent/CN202976627U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513231A (en) * | 2016-01-12 | 2016-04-20 | 苏州华电电气股份有限公司 | Emulational sound-light alarming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |