CN204576927U - Blown fuse demonstration device - Google Patents
Blown fuse demonstration device Download PDFInfo
- Publication number
- CN204576927U CN204576927U CN201520279498.XU CN201520279498U CN204576927U CN 204576927 U CN204576927 U CN 204576927U CN 201520279498 U CN201520279498 U CN 201520279498U CN 204576927 U CN204576927 U CN 204576927U
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- Prior art keywords
- fuse
- light emitting
- emitting diode
- battery
- dull
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Abstract
The utility model discloses a kind of blown fuse demonstration device, comprise flat board, battery, slide rheostat, switch, fuse, resistance and light emitting diode, described dull and stereotyped bottom is provided with battery, dull and stereotyped side is provided with slide rheostat, dull and stereotyped opposite side is provided with switch, dull and stereotyped top is provided with fuse, resistance, light emitting diode and alarming horn, the positive pole of described battery is by one end of switch and fuse, the positive pole of light emitting diode and one end of alarming horn are connected, the negative pole of light emitting diode is connected with one end of resistance, the other end of resistance and the other end of fuse, the other end of alarming horn and one end of slide rheostat are connected, the other end of slide rheostat is connected and is connected with the negative pole of battery.The utility model is reasonable in design, structure is simple, making is easy, sound and light presentation is lively.It is conducive to student understands completely for the demonstration of blown fuse in physics teaching.
Description
Technical field
The utility model relates to a kind of Physics Learning demonstration equipment, is specifically related to a kind of blown fuse demonstration device.
Background technology
In Physics Learning, the effect for fuse in circuit is explained, only by teacher's oral account, uninteresting, is difficult to reach student and understands completely.
Summary of the invention
The purpose of this utility model is exactly the defect existed for prior art, provides a kind of blown fuse demonstration device.
Its technical scheme is: blown fuse demonstration device, comprise flat board, battery, slide rheostat, switch, fuse, resistance and light emitting diode, described dull and stereotyped bottom is provided with battery, dull and stereotyped side is provided with slide rheostat, dull and stereotyped opposite side is provided with switch, dull and stereotyped top is provided with fuse, resistance, light emitting diode and alarming horn, the positive pole of described battery is by one end of switch and fuse, the positive pole of light emitting diode and one end of alarming horn are connected, the negative pole of light emitting diode is connected with one end of resistance, the other end of resistance and the other end of fuse, the other end of alarming horn and one end of slide rheostat are connected, the other end of slide rheostat is connected and is connected with the negative pole of battery.
Wherein, described battery is 2-4 joint dry cells.Described light emitting diode is seven colour flashing diodes.Described fuse is arranged on flat board by base is detachable.Described alarming horn is hummer or the loudspeaker with explosion sound recording.Described flat plate top is provided with hook.
The utility model compared with prior art, has the following advantages: reasonable in design, structure is simple, make easily, sound and light presentation is lively.It is conducive to student understands completely for the demonstration of blown fuse in physics teaching.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Embodiment
With reference to Fig. 1, a kind of blown fuse demonstration device, comprise dull and stereotyped 1, battery 2, slide rheostat 3, switch 4, fuse 5, resistance 6, light emitting diode 7 and alarming horn 8, described dull and stereotyped 1 bottom is provided with battery 2, dull and stereotyped 1 side is provided with slide rheostat 3, dull and stereotyped 1 opposite side is provided with switch 4, dull and stereotyped 1 top is provided with fuse 5, resistance 6, light emitting diode 7 and alarming horn 8, the positive pole of described battery 2 is by switch 4 one end with fuse 5, the positive pole of light emitting diode 7 and one end of alarming horn 8 are connected, the negative pole of light emitting diode 7 is connected with one end of resistance 6, the other end of resistance 6 and the other end of fuse 5, the other end of alarming horn 8 and one end of slide rheostat 3 are connected, the other end of slide rheostat 3 is connected and is connected with the negative pole of battery 2.Described battery 2 is 2-4 joint dry cells.Described light emitting diode 7 is seven colour flashing diodes.Described fuse 5 is arranged on dull and stereotyped 1 by base 9 is detachable.Described alarming horn 8 is hummer or the loudspeaker with explosion sound recording.Described dull and stereotyped 1 top is provided with hook 10.
During teaching, by linking up with 10, this device is hung up, first slide rheostat 3 is adjusted to resistance maximum position, base 9 is installed detachable fuse 5, close a switch 4, the electric current of battery 2 flows back to battery 2 by switch 4, fuse 5 and slide rheostat 3, now fuse 5 is normal, light emitting diode 7 is not luminous, and alarming horn 8 not sounding, illustrates that circuit is normal.Adjust slide rheostat 3 gradually and reduce its resistance, when the resistance of slide rheostat 3 is reduced to certain numerical value, when flowing through the cut-off current of electric current over insurance silk 5 of fuse 5, fuse 5 fuses, at this moment the electric current of battery 2 is then for flow back to battery 2 negative pole by battery 2 positive pole by switch 4, light emitting diode 7, resistance 6, alarming horn 8 and slide rheostat 3, light emitting diode 7 is luminous, alarming horn 8 sends explosion sound, indicate fuse 5 fuses, simultaneously, image embodies fuse 5 fusing process to acousto-optic.
The utility model is reasonable in design, structure is simple, making is easy, sound and light presentation is lively.It is conducive to student understands completely for the demonstration of blown fuse in physics teaching.
Claims (6)
1. blown fuse demonstration device, comprise flat board, battery, slide rheostat, switch, fuse, resistance and light emitting diode, it is characterized in that: described dull and stereotyped bottom is provided with battery, dull and stereotyped side is provided with slide rheostat, dull and stereotyped opposite side is provided with switch, dull and stereotyped top is provided with fuse, resistance, light emitting diode and alarming horn, the positive pole of described battery is by one end of switch and fuse, the positive pole of light emitting diode and one end of alarming horn are connected, the negative pole of light emitting diode is connected with one end of resistance, the other end of resistance and the other end of fuse, the other end of alarming horn and one end of slide rheostat are connected, the other end of slide rheostat is connected and is connected with the negative pole of battery.
2. blown fuse demonstration device according to claim 1, is characterized in that: described battery is 2-4 joint dry cells.
3. blown fuse demonstration device according to claim 1, is characterized in that: described light emitting diode is seven colour flashing diodes.
4. blown fuse demonstration device according to claim 1, is characterized in that: described fuse is arranged on flat board by base is detachable.
5. blown fuse demonstration device according to claim 1, is characterized in that: described alarming horn is hummer or the loudspeaker with explosion sound recording.
6. blown fuse demonstration device according to claim 1, is characterized in that: described flat plate top is provided with hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279498.XU CN204576927U (en) | 2015-05-04 | 2015-05-04 | Blown fuse demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279498.XU CN204576927U (en) | 2015-05-04 | 2015-05-04 | Blown fuse demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204576927U true CN204576927U (en) | 2015-08-19 |
Family
ID=53869531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520279498.XU Expired - Fee Related CN204576927U (en) | 2015-05-04 | 2015-05-04 | Blown fuse demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204576927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952545A (en) * | 2017-04-30 | 2017-07-14 | 国网江苏省电力公司职业技能训练基地 | A kind of transformer body-sensing experience system |
-
2015
- 2015-05-04 CN CN201520279498.XU patent/CN204576927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952545A (en) * | 2017-04-30 | 2017-07-14 | 国网江苏省电力公司职业技能训练基地 | A kind of transformer body-sensing experience system |
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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: 20150819 Termination date: 20160504 |