CN203931302U - A kind of electromagnetic principle demonstration device - Google Patents
A kind of electromagnetic principle demonstration device Download PDFInfo
- Publication number
- CN203931302U CN203931302U CN201420394781.2U CN201420394781U CN203931302U CN 203931302 U CN203931302 U CN 203931302U CN 201420394781 U CN201420394781 U CN 201420394781U CN 203931302 U CN203931302 U CN 203931302U
- Authority
- CN
- China
- Prior art keywords
- seesaw
- round turntable
- sway brace
- electromagnet
- synchronous motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of electromagnetic principle demonstration device, comprise synchronous motor, round turntable, sway brace, seesaw, the center of circle of described round turntable is connected with the main shaft of synchronous motor, the center of described round turntable is fixed with sway brace, described sway brace is provided with seesaw, the bottom at described seesaw two ends is fixed with respectively two blocks of magnet, described round turntable is respectively equipped with dc-battery, single-pole switch and electromagnet, tongue tube on corresponding edge, and described electromagnet is connected with single-pole switch with dc-battery by wire.Owing to adopting said structure, there is demonstrating visual, vivid and interesting, can improve the advantage of pupil's learning interest.
Description
Technical field
The utility model belongs to electromagnet technical field, relates in particular to a kind of electromagnetic principle demonstration device.
Background technology
Magnet is inhaled the characteristics such as iron and has been caused many students' interest with it." appearance " of electromagnet evoked paying special attention to of students.Especially the parent that the popularity of using in life and uniqueness, superiority are more subject to student looks at.After class, a lot of students want to utilize magnetic field electromagnet to carry out some creative practical activities very much.At this moment, teacher's guiding student that can take this opportunity carries out fantasy around " skilful use " of electromagnet.The little making of electromagnetic principle and student's sparetime is combined, create the works of some vivid and interestings, can improve student's learning interest on the one hand, can deepen on the other hand the understanding of student to electromagnetic principle.
Summary of the invention
The purpose of this utility model is to provide a kind of lively ripple alive, interesting strong electromagnetic principle demonstration device.
The purpose of this utility model is achieved through the following technical solutions, this electromagnetic principle demonstration device comprises synchronous motor, round turntable, sway brace, seesaw, the center of circle of described round turntable is connected with the main shaft of synchronous motor, the center of described round turntable is fixed with sway brace, described sway brace is provided with seesaw, the bottom at described seesaw two ends is fixed with respectively two blocks of magnet, described round turntable is respectively equipped with dc-battery on corresponding edge, single-pole switch and electromagnet, tongue tube, described electromagnet is connected with single-pole switch with dc-battery by wire, described synchronous motor is connected with motor switch.
During use, connect single-pole switch, when seesaw is slightly heavily held, because magnet is close, make the energising of tongue tube closing coil produce magnetic field and repel magnet, make to lift up on the heavier end of seesaw.After magnet is away from tongue tube, tongue tube disconnects, and electromagnet magnetic disappears, and the heavier end of seesaw falls by deadweight.
The beneficial effects of the utility model: demonstrating visual, vivid and interesting, can improve pupil's learning interest.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail
Fig. 1 is schematic diagram of the present utility model
In figure: 1, synchronous motor 2, round turntable 3, sway brace 4, seesaw 5, magnet 6, dc-battery 7, single-pole switch 8, electromagnet 9, tongue tube 10, wire 11, motor switch
Embodiment
As shown in Figure 1, this electromagnetic principle demonstration device comprises synchronous motor 1, round turntable 2, sway brace 3, seesaw 4, the center of circle of round turntable 2 is connected with the main shaft of synchronous motor 1, the center of round turntable 2 is fixed with sway brace 3, sway brace 3 is provided with seesaw 4, the bottom at seesaw 4 two ends is fixed with respectively two blocks of magnet 5, round turntable 2 is respectively equipped with dc-battery 6, single-pole switch 7 and electromagnet 8, tongue tube 9 on corresponding edge, electromagnet 8 is connected with single-pole switch 7 with dc-battery 6 by wire 10, and synchronous motor 1 is connected with motor switch 11.
During use, connect single-pole switch 7, when seesaw 4 is slightly heavily held, because magnet 5 is close, make tongue tube 9 closing coil energisings produce magnetic field and repel magnet, make to lift up on the heavier end of seesaw 4.After magnet 5 is away from tongue tube 9, tongue tube 9 disconnects, and electromagnet 8 magnetic disappear, and the heavier end of seesaw 4 falls by deadweight.
Repeat said process seesaw 4 and just lift up one on the other, after synchronous motor 1 energising, synchronous motor 1 drives round turntable 2 rotations, is used in conjunction with single-pole switch 7 and motor switch 11, just produces different entertainment way.
Claims (1)
1. an electromagnetic principle demonstration device, it is characterized in that this electromagnetic principle demonstration device comprises synchronous motor, round turntable, sway brace, seesaw, the center of circle of described round turntable is connected with the main shaft of synchronous motor, the center of described round turntable is fixed with sway brace, described sway brace is provided with seesaw, the bottom at described seesaw two ends is fixed with respectively two blocks of magnet, described round turntable is respectively equipped with dc-battery on corresponding edge, single-pole switch and electromagnet, tongue tube, described electromagnet is connected with single-pole switch with dc-battery by wire, described synchronous motor is connected with motor switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394781.2U CN203931302U (en) | 2014-07-07 | 2014-07-07 | A kind of electromagnetic principle demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394781.2U CN203931302U (en) | 2014-07-07 | 2014-07-07 | A kind of electromagnetic principle demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931302U true CN203931302U (en) | 2014-11-05 |
Family
ID=51827077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420394781.2U Expired - Fee Related CN203931302U (en) | 2014-07-07 | 2014-07-07 | A kind of electromagnetic principle demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203931302U (en) |
-
2014
- 2014-07-07 CN CN201420394781.2U patent/CN203931302U/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 |
Granted publication date: 20141105 Termination date: 20150707 |
|
| EXPY | Termination of patent right or utility model |