CN205899899U - Electromagnetic induction demonstration device - Google Patents
Electromagnetic induction demonstration device Download PDFInfo
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- CN205899899U CN205899899U CN201620469314.0U CN201620469314U CN205899899U CN 205899899 U CN205899899 U CN 205899899U CN 201620469314 U CN201620469314 U CN 201620469314U CN 205899899 U CN205899899 U CN 205899899U
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- electromagnetic induction
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Abstract
The embodiment of the utility model discloses an electromagnetic induction demonstration device, relates to demonstration teaching aid technical field, can make the structure simpler, operate more simple and convenient, the wholeness of add -on system. Electromagnetic induction demonstration device includes: the fixed bolster, the LED lamp, with fixed bolster fixed connection, the coil, the both ends of coil with the LED lamp is connected, change movable support, with fixed rotate bracket connection, a pair of magnet that heterocharge is relative is fixed on changeing movable support, can center on the coil rotates. The utility model is suitable for a teaching demonstration.
Description
Technical field
This utility model is related to presentation tool technical field, more particularly, to a kind of electromagnetic induction demonstration device.
Background technology
Electromagnetic induction, also known as magnetoelectric induction phenomenon, refers to the conductor being placed in change magnetic flux, can produce electromotive force.This electricity
Kinetic potential is referred to as induction electromotive force or induced electromotive force, if this conductor is closed into primary Ioops, this electromotive force can order about electron stream
Dynamic, form faradic current (induced current).
The electromagnetic induction demonstration device of prior art is that setting one, can turn in coil periphery around the coil of a certain diameter rotation
In the middle part of axle, two side positions fix a pair of magnetic pole, are rotated with crank handle turns coil；Or coil fixes, magnetic pole is rotatable；Rotate
After coming, in coil, produce electric current, then electric current is introduced ammeter or voltmeter or little D. C. bulb, you can be inclined by list index
Turn or the shinny checking of bulb has electricity generation, complete the demonstration of electromagnetic induction phenomenon.
But existing electromagnetic induction demonstration device needs to be driven with crank, operation inconvenience；Due to needing external electrical verification device (electricity
Flow table, voltmeter, bulb etc.), loosely organized, lack globality；And, external ammeter/voltmeter complex structure, and lamp
Bubble cannot reflect change in polarity again.
Utility model content
In view of this, this utility model embodiment provides a kind of electromagnetic induction demonstration device, and structure can be made simpler, operation
Easier, increase the globality of system, inconvenient and loosely organized to solve the problems, such as existing electromagnetic induction demonstration device operation.
This utility model embodiment provides a kind of electromagnetic induction demonstration device, comprising:
Fixed support；
LED lamp, is fixedly connected with described fixed support；
Coil, the two ends of described coil are connected with described LED lamp；
Swinging mounting, is rotated with described fixed support and is connected；
The relative a pair of magnet of heteropole, is fixed on described swinging mounting, can rotate around described coil.
Described LED lamp is at least two, is connected in parallel, and the opposite polarity of two adjacent LED lamps.
The number of turn of described coil is more than 9000.
Described LED lamp can be drawn and is fixed on described fixed support optional position.
This utility model technique scheme has the advantages that
In such scheme, a pair of magnet is arranged on swinging mounting, during demonstration, this turns with swinging mounting to Magnet
Moving around coil rotation, thus producing electric current so that LED lamp is glittering, solving existing electromagnetic induction demonstration device needs bent
Handle drives, and operates inconvenient and loosely organized problem, structure can be made simpler, and operation is easier, also increases system simultaneously
, demonstrating effect is also more directly perceived.
Brief description
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or in description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the electromagnetic induction demonstration device of this utility model embodiment.
Description of reference numerals
1- fixed support；
2-led lamp；
3- coil；
4- swinging mounting；
5- Magnet；
31- finish lead.
Specific embodiment
To this utility model embodiment, a kind of electromagnetic induction demonstration device is described in detail below in conjunction with the accompanying drawings.
It will be appreciated that described embodiment is only a part of embodiment of this utility model, rather than whole enforcement
Example.Based on the embodiment in this utility model, those of ordinary skill in the art are obtained under the premise of not making creative work
The all other embodiment obtaining, broadly falls into the scope of this utility model protection.
Fig. 1 is the structural representation of the electromagnetic induction demonstration device of this utility model embodiment, as shown in figure 1, this practicality is new
The electromagnetic induction demonstration device of type embodiment includes: fixed support 1, LED lamp 2, coil 3, swinging mounting 4 and a pair of magnet 5.
Wherein, LED lamp 2, are fixedly connected with fixed support 1；The two ends (two finish leads 31) of coil 3 and LED lamp 2
Connect；Swinging mounting 4, is rotated with fixed support 1 and is connected；Magnet 5 is a pair, and heteropole relatively, is fixed on swinging mounting 4, can
Rotate around coil 3.
Further, in the present embodiment, LED lamp 2 is at least two, is connected in parallel, can be set to many as desired
The opposite polarity of two individual and adjacent LED lamps 2.
Further, in the present embodiment, the number of turn of coil 3 is more than 9000.Preferably, coil can useLeft and right paint
Envelope curve twines to be made about 10000 circles.
Further, LED lamp 2 can be drawn and is fixed on fixed support 1 optional position.
When carrying out operation demonstration, it is equipped with the swinging mounting 4 of Magnet 5 with handss switch, this rotates around coil 3 to Magnet 5,
When reaching certain speed, led can with odd even sequence number divide two groups alternately glittering, this explanation have electricity produce and direction alternate；
Rotating speed is reduced to a certain degree, and led is no longer glittering.
This utility model embodiment, a pair of magnet is arranged on swinging mounting, and during demonstration, this props up with rotating to Magnet
The rotation of frame rotates around coil, thus producing electric current so that LED lamp is glittering, solving existing electromagnetic induction demonstration device needs
Driven with crank, operate inconvenient and loosely organized problem, structure can be made simpler, operation is easier, also increases simultaneously
System, demonstrating effect is also more directly perceived.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art in the technical scope that this utility model discloses, the change that can readily occur in
Change or replace, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with right
The protection domain requiring is defined.
Claims (4)
1. a kind of electromagnetic induction demonstration device is it is characterised in that include:
Fixed support；
LED lamp, is fixedly connected with described fixed support；
Coil, the two ends of described coil are connected with described LED lamp；
Swinging mounting, is rotated with described fixed support and is connected；
The relative a pair of magnet of heteropole, is fixed on described swinging mounting, can rotate around described coil.
2., it is characterised in that described LED lamp is at least two, parallel connection is even for electromagnetic induction demonstration device according to claim 1
Connect, and the opposite polarity of two adjacent LED lamps.
3. electromagnetic induction demonstration device according to claim 2 is it is characterised in that the number of turn of described coil is more than 9000.
4. electromagnetic induction demonstration device according to claim 3 it is characterised in that described LED lamp can draw be fixed on described
Fixed support optional position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469314.0U CN205899899U (en) | 2016-05-20 | 2016-05-20 | Electromagnetic induction demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620469314.0U CN205899899U (en) | 2016-05-20 | 2016-05-20 | Electromagnetic induction demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205899899U true CN205899899U (en) | 2017-01-18 |
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ID=57765660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620469314.0U Active CN205899899U (en) | 2016-05-20 | 2016-05-20 | Electromagnetic induction demonstration device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205899899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074455A (en) * | 2018-02-05 | 2018-05-25 | 唐守平 | A kind of Experiments of Electromagnetism multifunction demonstrator |
| CN108898928A (en) * | 2018-08-28 | 2018-11-27 | 常州大学怀德学院 | A kind of Physical Experiment apparatus for demonstrating |
-
2016
- 2016-05-20 CN CN201620469314.0U patent/CN205899899U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108074455A (en) * | 2018-02-05 | 2018-05-25 | 唐守平 | A kind of Experiments of Electromagnetism multifunction demonstrator |
| CN108898928A (en) * | 2018-08-28 | 2018-11-27 | 常州大学怀德学院 | A kind of Physical Experiment apparatus for demonstrating |
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