CN204614315U - current flowing demonstration device - Google Patents
current flowing demonstration device Download PDFInfo
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- CN204614315U CN204614315U CN201520245068.6U CN201520245068U CN204614315U CN 204614315 U CN204614315 U CN 204614315U CN 201520245068 U CN201520245068 U CN 201520245068U CN 204614315 U CN204614315 U CN 204614315U
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- emitting diode
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Abstract
The utility model discloses a kind of current flowing demonstration device, comprise resistance.Electric capacity, integrated circuit, light emitting diode, plug, stabilized voltage supply and switch, the model of described first integrated circuit is NE555.The model of described second integrated circuit is CD4017.Described first to the tenth light emitting diode interval is divided into two rows spread configuration.The utility model adopts a small amount of element of two pieces of integrated circuit and periphery to form, and by the light on and off of light emitting diode, reaches image, object teaching, be convenient to student and understand, grasp.It has the advantages such as reasonable in design, structure is simple, operation compared with prior art.
Description
Technical field
The utility model relates to a kind of physics aided education teaching aid, is specifically related to a kind of current flowing demonstration device.
Background technology
In electrophysics study, be one of more indigestible problem of student for ac and dc current flow process, describe difficulty to reach image, object teaching by teacher merely, be not easy to student's understanding, grasp.At present, not yet have for impart knowledge to students and student experimenting current flowing demonstration device come out.
Summary of the invention
The purpose of this utility model is exactly the defect existed for prior art, provides a kind of and teacher can be helped to explain and be conducive to student's direct vision, play the current flowing demonstration device of assisted learning object.
Its technical scheme is: current flowing demonstration device, comprises resistance.Electric capacity, integrated circuit, light emitting diode, plug, stabilized voltage supply and switch, plug is connected with the input end of stabilized voltage supply by switch, the positive output end of stabilized voltage supply and 4 pin of the first integrated circuit, 8 pin of the first integrated circuit, 16 pin of the second integrated circuit are connected with one end of the 11 resistance, the other end of the 11 resistance is connected with one end of the 12 resistance and 7 pin of the first integrated circuit, the other end of the 12 resistance is by one end of adjustable resistance and electric capacity, 2 pin of the first integrated circuit and 6 pin of the first integrated circuit are connected, 3 pin of the first integrated circuit are connected with 14 pin of the second integrated circuit, 3 pin of the second integrated circuit are connected by the positive pole of the first resistance with the first light emitting diode, 2 pin of the second integrated circuit are connected with the positive pole of the second light emitting diode, the negative pole of the second light emitting diode is connected with one end of the second resistance, 4 pin of the second integrated circuit are connected by the positive pole of the 3rd resistance with the 3rd light emitting diode, 7 pin of the second integrated circuit are connected with the positive pole of the 4th light emitting diode, the negative pole of the 4th light emitting diode is connected with one end of the 4th resistance, 10 pin of the second integrated circuit are connected by the positive pole of the 5th resistance with the 5th light emitting diode, 1 pin of the second integrated circuit is connected with the positive pole of the 6th light emitting diode, the negative pole of the 6th light emitting diode is connected with one end of the 6th resistance, 5 pin of the second integrated circuit are connected by the positive pole of the 7th resistance with the 7th light emitting diode, 6 pin of the second integrated circuit are connected with the positive pole of the 8th light emitting diode, the negative pole of the 8th light emitting diode is connected with one end of the 8th resistance, 9 pin of the second integrated circuit are connected by the positive pole of the 9th resistance with the 9th light emitting diode, 11 pin of the second integrated circuit are connected with the positive pole of the tenth light emitting diode, the negative pole of the tenth light emitting diode is connected with one end of the tenth resistance, the negative output terminal of described stabilized voltage supply and the other end of electric capacity, 1 pin of the first integrated circuit, 8 pin of the second integrated circuit, 13 pin of the second integrated circuit, 15 pin of the second integrated circuit, the negative pole of the first light emitting diode, the negative pole of the 3rd light emitting diode, the negative pole of the 5th light emitting diode, the negative pole of the 7th light emitting diode, the negative pole of the 9th light emitting diode, the other end of the second resistance, the other end of the 4th resistance, the other end of the 6th resistance, the other end of the 8th resistance and the other end of the tenth resistance are connected.
Wherein, the model of described first integrated circuit is NE555.The model of described second integrated circuit is CD4017.Described first to the tenth light emitting diode interval is divided into two rows spread configuration.
The utility model adopts a small amount of element of two pieces of integrated circuit and periphery to form, and by the light on and off of light emitting diode, reaches image, object teaching, be convenient to student and understand, grasp.It has the advantages such as reasonable in design, structure is simple, operation compared with prior art.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of a kind of embodiment of the utility model.
Embodiment
With reference to Fig. 1, a kind of current flowing demonstration device, comprises resistance.Electric capacity, integrated circuit, light emitting diode, plug, stabilized voltage supply and switch, plug CT is connected with the input end of stabilized voltage supply DC by K switch, the positive output end of stabilized voltage supply DC and 4 pin of the first integrated circuit (IC) 1, 8 pin of the first integrated circuit (IC) 1, 16 pin of the second integrated circuit (IC) 2 are connected with one end of the 11 resistance R11, the other end of the 11 resistance R11 is connected with 7 pin of one end of the 12 resistance R12 and the first integrated circuit (IC) 1, the other end of the 12 resistance R12 passes through one end of adjustable resistance W and electric capacity C, 2 pin of the first integrated circuit (IC) 1 and 6 pin of the first integrated circuit (IC) 1 are connected, 3 pin of the first integrated circuit (IC) 1 are connected with 14 pin of the second integrated circuit (IC) 2, 3 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the first light emitting diode L1 by the first resistance R1, 2 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the second light emitting diode L2, the negative pole of the second light emitting diode L2 is connected with one end of the second resistance R2, 4 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the 3rd light emitting diode L3 by the 3rd resistance R3, 7 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the 4th light emitting diode L4, the negative pole of the 4th light emitting diode L4 is connected with one end of the 4th resistance R4, 10 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the 5th light emitting diode L5 by the 5th resistance R5, 1 pin of the second integrated circuit (IC) 2 is connected with the positive pole of the 6th light emitting diode L6, the negative pole of the 6th light emitting diode L6 is connected with one end of the 6th resistance R6, 5 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the 7th light emitting diode L7 by the 7th resistance R7, 6 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the 8th light emitting diode L8, the negative pole of the 8th light emitting diode L8 is connected with one end of the 8th resistance R8, 9 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the 9th light emitting diode L9 by the 9th resistance R9, 11 pin of the second integrated circuit (IC) 2 are connected with the positive pole of the tenth light emitting diode L10, the negative pole of the tenth light emitting diode L10 is connected with one end of the tenth resistance R10, the negative output terminal of described stabilized voltage supply DC and the other end of electric capacity C, 1 pin of the first integrated circuit (IC) 1, 8 pin of the second integrated circuit (IC) 2, 13 pin of the second integrated circuit (IC) 2, 15 pin of the second integrated circuit (IC) 2, the negative pole of the first light emitting diode L1, the negative pole of the 3rd light emitting diode L3, the negative pole of the 5th light emitting diode L5, the negative pole of the 7th light emitting diode L7, the negative pole of the 9th light emitting diode L9, the other end of the second resistance R2, the other end of the 4th resistance R4, the other end of the 6th resistance R6, the other end of the 8th resistance R8 and the other end of the tenth resistance R10 are connected.Wherein, the model of described first integrated circuit (IC) 1 is NE555.The model of described second integrated circuit (IC) 2 is CD4017.Described first to the tenth light emitting diode interval is divided into two rows spread configuration.
When making use, first to the tenth light emitting diode interval is divided into two rows spread configuration, be similar to wavy arrangement, plug CT is inserted power supply, opening switch K, this is that the first to the tenth light emitting diode is lighted in turn, extinguished, in wave-like motion, complete the demonstration of alternating current flow effect, suitably adjustment adjustable resistance W adjustable flowing velocity, makes it reach true to nature; When demonstrating DC current flows effect, covering top or any discharge optical diode below with a shadow shield, suitably adjusting adjustable resistance W raising flowing velocity, completing the demonstration of DC current flows effect.
Principle of work: as shown in Figure 1, the first integrated circuit (IC) 1, electric capacity C, the 11 resistance R11, the 12 resistance R12 and adjustable resistance W form multivibrator circuit.Second integrated circuit (IC) 2 is for having the counter of 10 decoding output terminals, input end 14 pin of the second integrated circuit (IC) 2 is under the driving of output terminal 3 pin of the first integrated circuit (IC) 1, the output terminal of the second integrated circuit (IC) 2 exports high level successively, thus drives the lumination of light emitting diode that its output terminal connects respectively.First to the tenth light emitting diode interval is divided into two rows spread configuration, when it is luminous successively, namely there will be the light pattern of movement alternatively up and down, demonstrates out alternating current flow effect; Cover top or any discharge optical diode below with a shadow shield, when a remaining discharge optical diode is luminous successively, namely there will be the light pattern of rectilinear movement, demonstrate out the demonstration of DC current flows effect.Adjustable resistance W is the frequency of operation of adjustment multivibrator circuit, adjusts light emitting diode thus and lights speed, make it form light pattern and reach vivid effect.
The utility model adopts a small amount of element of two pieces of integrated circuit and periphery to form, and by the light on and off of light emitting diode, reaches image, object teaching, be convenient to student and understand, grasp.It has the advantages such as reasonable in design, structure is simple, operation compared with prior art.
Claims (4)
1. current flowing demonstration device, comprise resistance, electric capacity, integrated circuit, light emitting diode, plug, stabilized voltage supply and switch, it is characterized in that: plug is connected with the input end of stabilized voltage supply by switch, the positive output end of stabilized voltage supply and 4 pin of the first integrated circuit, 8 pin of the first integrated circuit, 16 pin of the second integrated circuit are connected with one end of the 11 resistance, the other end of the 11 resistance is connected with one end of the 12 resistance and 7 pin of the first integrated circuit, the other end of the 12 resistance is by one end of adjustable resistance and electric capacity, 2 pin of the first integrated circuit and 6 pin of the first integrated circuit are connected, 3 pin of the first integrated circuit are connected with 14 pin of the second integrated circuit, 3 pin of the second integrated circuit are connected by the positive pole of the first resistance with the first light emitting diode, 2 pin of the second integrated circuit are connected with the positive pole of the second light emitting diode, the negative pole of the second light emitting diode is connected with one end of the second resistance, 4 pin of the second integrated circuit are connected by the positive pole of the 3rd resistance with the 3rd light emitting diode, 7 pin of the second integrated circuit are connected with the positive pole of the 4th light emitting diode, the negative pole of the 4th light emitting diode is connected with one end of the 4th resistance, 10 pin of the second integrated circuit are connected by the positive pole of the 5th resistance with the 5th light emitting diode, 1 pin of the second integrated circuit is connected with the positive pole of the 6th light emitting diode, the negative pole of the 6th light emitting diode is connected with one end of the 6th resistance, 5 pin of the second integrated circuit are connected by the positive pole of the 7th resistance with the 7th light emitting diode, 6 pin of the second integrated circuit are connected with the positive pole of the 8th light emitting diode, the negative pole of the 8th light emitting diode is connected with one end of the 8th resistance, 9 pin of the second integrated circuit are connected by the positive pole of the 9th resistance with the 9th light emitting diode, 11 pin of the second integrated circuit are connected with the positive pole of the tenth light emitting diode, the negative pole of the tenth light emitting diode is connected with one end of the tenth resistance, the negative output terminal of described stabilized voltage supply and the other end of electric capacity, 1 pin of the first integrated circuit, 8 pin of the second integrated circuit, 13 pin of the second integrated circuit, 15 pin of the second integrated circuit, the negative pole of the first light emitting diode, the negative pole of the 3rd light emitting diode, the negative pole of the 5th light emitting diode, the negative pole of the 7th light emitting diode, the negative pole of the 9th light emitting diode, the other end of the second resistance, the other end of the 4th resistance, the other end of the 6th resistance, the other end of the 8th resistance and the other end of the tenth resistance are connected.
2. current flowing demonstration device according to claim 1, is characterized in that: the model of described first integrated circuit is NE555.
3. current flowing demonstration device according to claim 1, is characterized in that: the model of described second integrated circuit is CD4017.
4. current flowing demonstration device according to claim 1, is characterized in that: the described first to the tenth light emitting diode interval is divided into two rows spread configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245068.6U CN204614315U (en) | 2015-04-22 | 2015-04-22 | current flowing demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520245068.6U CN204614315U (en) | 2015-04-22 | 2015-04-22 | current flowing demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204614315U true CN204614315U (en) | 2015-09-02 |
Family
ID=53966850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520245068.6U Expired - Fee Related CN204614315U (en) | 2015-04-22 | 2015-04-22 | current flowing demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204614315U (en) |
-
2015
- 2015-04-22 CN CN201520245068.6U patent/CN204614315U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20170422 |