CN203631032U - Demonstration teaching aid of classroom illumination light-operated system - Google Patents
Demonstration teaching aid of classroom illumination light-operated system Download PDFInfo
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- CN203631032U CN203631032U CN201320810189.1U CN201320810189U CN203631032U CN 203631032 U CN203631032 U CN 203631032U CN 201320810189 U CN201320810189 U CN 201320810189U CN 203631032 U CN203631032 U CN 203631032U
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- triode
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- illumination light
- emitting diode
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Abstract
The utility model discloses a demonstration teaching aid of a classroom illumination light-operated system. The demonstration teaching aid comprises a base plate and a top plate. A plurality of upright columns are arranged between the base plate and top plate. The lower surface of the top plate is provided with a simulation illumination lamp. The demonstration teaching aid further comprises the classroom illumination light-operated system. According to the utility model, the base plate and the top plate are adopted to respectively simulate a classroom floor and a classroom ceiling, the classroom illumination light-operated system is adopted to control the simulation illumination lamp which is used for simulating an LED illuminating lamp of a classroom, electric appliance elements such as variable resistors, triodes and relays can be applied to the simulation demonstration of the classroom illumination light-operated system, so that the teaching effect and the learning enthusiasm of students are improved, and the students can firmly master the related knowledge of the electric appliance elements.
Description
Technical field
The utility model relates to a kind of demonstration teaching aid, relates in particular to a kind of classroom illumination light control system demonstration teaching aid.
Background technology
In the process that student learns in classroom, dimmed along with available light, need to open classroom illumination system and throw light on, and guarantees student's eye health, avoids student eyesight to impact.But in actual use, there is sometimes student and in the situation that light is darker, forget and open illuminator, cause student eyesight impaired; Or forget and turn off illuminator in well-lighted situation, cause electricity consumption waste.
In junior middle school physics teaching process, teacher need tell about using method and the principle of work about electric elements such as variable resistor, triode, relays to student.If how the using method of above-mentioned electric elements can be realized together, classroom illumination is automatic light-operated to be combined, and will greatly improve student's learning enthusiasm, improves teaching efficiency.But the above-mentioned electric elements of not yet favourable use carry out the demonstration teaching aid of classroom illumination light control system at present.
Utility model content
The purpose of this utility model is to provide a kind of classroom illumination light control system demonstration teaching aid, can be in telling about the using method and principle of work of the electric elements such as variable resistor, triode, relay, utilize above-mentioned electrical equipment to carry out the analog demenstration of classroom illumination light control system, the learning enthusiasm that improves teaching efficiency and student, allows student grasp securely the relevant knowledge of above-mentioned electric elements.
The utility model adopts following technical proposals:
A kind of classroom illumination light control system demonstration teaching aid, comprises base plate and top board, is provided with many root posts between base plate and top board, and top board lower surface is provided with simulation lighting; Also comprise classroom illumination light control system, classroom illumination light control system comprises direct supply, the first end of direct supply connecting valve, the second end of switch is by the first capacity earth, the second end of switch is successively by photoresistance and variable resistor ground connection, the second end of switch connects the collector of the first triode by the first resistance, the base stage of the first triode is connected on the wire between photoresistance and variable resistor, the grounded emitter of the first triode; The second end of switch also connects respectively the positive pole of the first light emitting diode and the second light emitting diode by the second resistance, the negative pole of the first light emitting diode connects the base stage of collector and second triode of the first triode simultaneously, the negative pole of the second light emitting diode connects the collector of the second triode, the second triode grounded emitter; The second light emitting diode two ends relay coil in parallel, the normally opened contact of relay coil is connected on the feed circuit of simulation lighting.
The second described light emitting diode two ends are parallel with hummer.
Described the first triode and the second triode are NPN triode.
The first described light emitting diode is green LED, and the second light emitting diode is red light emitting diodes.
Described simulation lighting can adopt LED lamp.
The utility model utilizes base plate and top board to simulate respectively floor, classroom and classroom ceiling, utilize the simulation lighting of the LED illuminating lamp in classroom illumination light control system control simulation classroom, the electric elements such as variable resistor, triode, relay can be applied to the analog demenstration that carries out classroom illumination light control system, the learning enthusiasm that improves teaching efficiency and student, allows student grasp securely the relevant knowledge of above-mentioned electric elements.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises base plate and top board, is provided with many root posts between base plate and top board; Base plate is used for simulating floor, classroom, and top board is used for simulating classroom ceiling, and top board lower surface is provided with simulation lighting D3, for simulating the LED illuminating lamp in classroom; Simulation lighting D3 can adopt LED lamp; The utility model also comprises classroom illumination light control system, classroom illumination light control system comprises direct supply U, the first end of direct supply U connecting valve S, the second end of switch S is by the first capacitor C 1 ground connection, the second end of switch S is successively by photoresistance R3 and variable resistor R4 ground connection, the second end of switch S connects the collector of the first triode Q1 by the first resistance R 1, the base stage of the first triode Q1 is connected on the wire between photoresistance R3 and variable resistor R4, the grounded emitter of the first triode Q1; The second end of switch S also connects respectively the positive pole of the first light emitting diode D1 and the second light emitting diode D2 by the second resistance R 2, the negative pole of the first light emitting diode D1 connects the collector of the first triode Q1 and the base stage of the second triode Q2 simultaneously, the negative pole of the second light emitting diode D2 connects the collector of the second triode Q2, the grounded emitter of the second triode Q2; The second light emitting diode D2 two ends relay coil J in parallel, the normally opened contact K of relay coil J is connected on the feed circuit of simulation lighting D3.In the present embodiment, the second light emitting diode D2 two ends are parallel with hummer H; The first triode Q1 and the second triode Q2 are NPN triode; The first light emitting diode D1 is green LED, and the second light emitting diode D2 is red light emitting diodes.
The utility model in use, first closing switch S, in the time having certain illumination to irradiate photosensitive resistance R 3, photoresistance R3 resistance reduces, the base voltage of the first triode Q1 raises, the first triode Q1 conducting, and the first light emitting diode D1 sends green glow, represent that religion indoor natural light is bright and clear, without opening classroom illumination light fixture.Now, because the second triode Q2 base voltage reduces, the second triode Q2 cut-off, therefore the second light emitting diode D2 is not luminous, and hummer H does not work, relay coil J no power, therefore relay normally open contact K still disconnects, and the feed circuit of simulation lighting D3 disconnect.
In the time that light is weak, photoresistance R3 resistance increases, the base voltage of the first triode Q1 reduces, the first triode Q1 cut-off, and now the second triode Q2 base voltage raises, the second triode Q2 conducting, the second light emitting diode D2 sends ruddiness, and hummer H has electric current to flow through, and sends chimes of doom, remind insufficient light in user classroom, need open classroom illumination light fixture.Due to the second triode Q2 conducting, relay coil J energising, the normally opened contact K closure of relay, the feed circuit conducting of simulation lighting D3, simulation lighting D3 obtains electric work and throws light on.
Claims (5)
1. a classroom illumination light control system demonstration teaching aid, is characterized in that: comprise base plate and top board, be provided with many root posts between base plate and top board, top board lower surface is provided with simulation lighting; Also comprise classroom illumination light control system, classroom illumination light control system comprises direct supply, the first end of direct supply connecting valve, the second end of switch is by the first capacity earth, the second end of switch is successively by photoresistance and variable resistor ground connection, the second end of switch connects the collector of the first triode by the first resistance, the base stage of the first triode is connected on the wire between photoresistance and variable resistor, the grounded emitter of the first triode; The second end of switch also connects respectively the positive pole of the first light emitting diode and the second light emitting diode by the second resistance, the negative pole of the first light emitting diode connects the base stage of collector and second triode of the first triode simultaneously, the negative pole of the second light emitting diode connects the collector of the second triode, the second triode grounded emitter; The second light emitting diode two ends relay coil in parallel, the normally opened contact of relay coil is connected on the feed circuit of simulation lighting.
2. classroom illumination light control system demonstration teaching aid according to claim 1, is characterized in that: the second described light emitting diode two ends are parallel with hummer.
3. classroom illumination light control system demonstration teaching aid according to claim 2, is characterized in that: described the first triode and the second triode are NPN triode.
4. classroom illumination light control system demonstration teaching aid according to claim 3, is characterized in that: the first described light emitting diode is green LED, the second light emitting diode is red light emitting diodes.
5. classroom illumination light control system demonstration teaching aid according to claim 4, is characterized in that: described simulation lighting can adopt LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320810189.1U CN203631032U (en) | 2013-12-11 | 2013-12-11 | Demonstration teaching aid of classroom illumination light-operated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320810189.1U CN203631032U (en) | 2013-12-11 | 2013-12-11 | Demonstration teaching aid of classroom illumination light-operated system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631032U true CN203631032U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320810189.1U Expired - Fee Related CN203631032U (en) | 2013-12-11 | 2013-12-11 | Demonstration teaching aid of classroom illumination light-operated system |
Country Status (1)
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| CN (1) | CN203631032U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407245A (en) * | 2014-11-13 | 2015-03-11 | 盐城工业职业技术学院 | Photoresistor characteristics and application tester |
| CN111583597A (en) * | 2020-05-12 | 2020-08-25 | 深圳市商厨科技有限公司 | Surface treatment device is used in stainless steel goods production |
| CN111585513A (en) * | 2020-05-12 | 2020-08-25 | 深圳市商厨科技有限公司 | Wall-hanging tableware recoverer |
-
2013
- 2013-12-11 CN CN201320810189.1U patent/CN203631032U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407245A (en) * | 2014-11-13 | 2015-03-11 | 盐城工业职业技术学院 | Photoresistor characteristics and application tester |
| CN111583597A (en) * | 2020-05-12 | 2020-08-25 | 深圳市商厨科技有限公司 | Surface treatment device is used in stainless steel goods production |
| CN111585513A (en) * | 2020-05-12 | 2020-08-25 | 深圳市商厨科技有限公司 | Wall-hanging tableware recoverer |
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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: 20140604 Termination date: 20141211 |
|
| EXPY | Termination of patent right or utility model |