CN207909393U - A kind of vortex demonstration teaching aid being suitable for teaching - Google Patents
A kind of vortex demonstration teaching aid being suitable for teaching Download PDFInfo
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- CN207909393U CN207909393U CN201721132140.XU CN201721132140U CN207909393U CN 207909393 U CN207909393 U CN 207909393U CN 201721132140 U CN201721132140 U CN 201721132140U CN 207909393 U CN207909393 U CN 207909393U
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Abstract
The utility model is related to Popular Science Education technical fields, more particularly to a kind of vortex demonstration teaching aid being suitable for teaching, include stage body, five damper tubes arranged according to " star " shape are equipped on the stage body, magnet is equipped in the damper tube, first sliding tube, second sliding tube, third sliding tube, 4th sliding tube and the 5th sliding tube are respectively fitted on different damper tubes, first sliding tube, second sliding tube, the material of third sliding tube is red copper, vertical hollow out is equipped on first sliding tube, lateral hollow out is equipped on second sliding tube, the material of 4th sliding tube is aluminium, the material of 5th sliding tube is nylon.The utility model by sliding tube made of unlike material passing through the damper tube with magnet, the different vortex demonstration of the tubing fall time of unlike material can occur, the phenomenon that allowing student to observe vortex in vivid interaction, it is put into practice to combine theory, deeper study electromagnetic induction and Lenz's law.
Description
Technical field
The present invention relates to Popular Science Education technical field more particularly to a kind of vortex demonstration teaching aids being suitable for teaching.
Background technology
Electromagnetic induction（Electromagnetic induction）Phenomenon refers to the conductor being placed in change magnetic flux, meeting
Generate electromotive force.This electromotive force is known as induced electromotive force or induced electromotive force, if this conductor is closed into primary Ioops, this is electronic
Gesture can drive electronics to flow, and form induced current（Induced current）.It can all be produced in any conductor actually near this coil
Raw induced current.According to Lenz's law, induced current has such direction, i.e., faradic magnetic field always hinders to cause to feel
The variation of the magnetic flux of induced current.The rule for being exactly briefly " refuse to go or stay ", here it is the main contents of Lenz's law.Such as
Allow students are straightaway to understand the above law in where imparting knowledge to students, that just needs to be demonstrated by teaching aid.
Invention content
The purpose of the present invention is to provide a kind of vortex demonstration teaching aids being suitable for teaching, and student is allowed to be drilled in vivid interaction
The phenomenon that electromagnetic induction and Lenz's law are experienced in showing, theory combine practice, it is easier to receive law.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of vortex demonstration teaching aid being suitable for teaching, including stage body are equipped on the stage body and are arranged according to " star " shape
Five damper tubes, in the damper tube be equipped with magnet, the first sliding tube, the second sliding tube, third sliding tube, the 4th slide
Dynamic pipe and the 5th sliding tube are respectively fitted on different damper tubes, first sliding tube, the second sliding tube, third sliding tube
Material be red copper, on first sliding tube be equipped with vertical hollow out, on second sliding tube be equipped with laterally engrave
The material of sky, the 4th sliding tube is aluminium, and the material of the 5th sliding tube is nylon.
Beneficial effects of the present invention are：
The present invention it is a kind of be suitable for teaching vortex demonstration teaching aid, by sliding tube made of unlike material by carrying
The damper tube of magnet, it may occur that the vortex that the tubing fall time of unlike material is different is demonstrated, and allows student in vivid interaction
It the phenomenon that observation vortex, is put into practice to combine theory, deeper study electromagnetic induction and Lenz's law.
Description of the drawings
Fig. 1 is main structure diagram of the present invention；
Fig. 2 is overlooking structure diagram of the present invention.
Specific implementation mode
Shown in attached drawing 1-2, a kind of vortex demonstration teaching aid being suitable for teaching, including stage body 1, on the stage body 1
Equipped with five damper tubes arranged according to " star " shape, magnet, the sliding of the first sliding tube 2, second are equipped in the damper tube
Pipe 3, third sliding tube 4, the 4th sliding tube 5 and the 5th sliding tube 6 are respectively fitted on different damper tubes, the described first sliding
Pipe 2, the second sliding tube 3, third sliding tube 4 material be red copper, on first sliding tube 2 be equipped with vertical hollow out,
Second sliding tube 3 is equipped with lateral hollow out, and the material of the 4th sliding tube 5 is aluminium, the 5th sliding tube 6
Material be nylon.
Concrete operations mode is as follows：
First sliding tube 2, the second sliding tube 3, third sliding tube 4, the 4th sliding tube 5 and the 5th sliding tube 6 are moved to
The top of five damper tube damper tubes, while 5 sliding tubes are discharged, the motion conditions that observation sliding tube declines；In dropping process,
It is observed that the 5th sliding tube 6 of nylon material is first fallen, fallen followed by the 4th sliding tube 5 of aluminium material, followed by
The third sliding tube 4 of red copper material of the outer wall without hollow out is fallen, and is vertical red copper material followed by outer wall hollow out shape
First sliding tube 2 is fallen, and what is finally fallen is that the second sliding tube 3 that hollow out shape is lateral red copper material is fallen.
According to vortex flow law：If sliding tube is metal material, when by having the position of magnet in damper tube, metal is cut
Magnetic induction line is cut, induced current is generated in metal inside, is known by Lenz's law, induced current can hinder metal tube to decline, and make its speed
Degree slows down；If sliding tube is non-metallic material, declining process pipe not dampened influences；In device, the electric conductivity of red copper is strong
In aluminium, therefore red copper is affected by faradic, and decrease speed is slower；And three be all red copper sliding tube, due to it
In two outer walls have hollow out, according to the shape of hollow out, the length of cutting magnetic induction line is longer, influenced by induced current it is bigger, decline
It is slower.
The above description is only the preferred embodiments of the present invention, is not intended to limit the present invention in any other form,
Any person skilled in the art is changed or is modified as equivalent variations possibly also with the technology contents of the disclosure above
Equivalent embodiment.But without departing from the concept of the present invention, above example is done according to the technical essence of the invention
Any simple modification, equivalent variations and remodeling, still fall within protection scope of the present invention.
Claims (1)
1. a kind of vortex demonstration teaching aid being suitable for teaching, it is characterised in that：Including stage body, on the stage body be equipped with according to
Five damper tubes of " star " shape arrangement, are equipped with magnet in the damper tube, and the first sliding tube, the second sliding tube, third are slided
Dynamic pipe, the 4th sliding tube and the 5th sliding tube are respectively fitted on different damper tubes, first sliding tube, the second sliding
Pipe, third sliding tube material be red copper, on first sliding tube be equipped with vertical hollow out, in second sliding tube
It is equipped with lateral hollow out, the material of the 4th sliding tube is aluminium, and the material of the 5th sliding tube is nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721132140.XU CN207909393U (en) | 2017-09-05 | 2017-09-05 | A kind of vortex demonstration teaching aid being suitable for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721132140.XU CN207909393U (en) | 2017-09-05 | 2017-09-05 | A kind of vortex demonstration teaching aid being suitable for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207909393U true CN207909393U (en) | 2018-09-25 |
Family
ID=63570114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721132140.XU Active CN207909393U (en) | 2017-09-05 | 2017-09-05 | A kind of vortex demonstration teaching aid being suitable for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207909393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393385A (en) * | 2017-09-05 | 2017-11-24 | 合肥探奥教育科技有限公司 | A kind of vortex demonstration teaching aid for being applied to teaching |
-
2017
- 2017-09-05 CN CN201721132140.XU patent/CN207909393U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393385A (en) * | 2017-09-05 | 2017-11-24 | 合肥探奥教育科技有限公司 | A kind of vortex demonstration teaching aid for being applied to teaching |
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