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Device for demonstrating electromagnetic induction phenomena with light emitting diodes

A technology of light-emitting diodes and electromagnetic induction, which is applied in the field of teaching equipment, can solve the problem of low learning interest, and achieve the effects of improving learning interest, convenient production, and simple structure

Inactive Publication Date: 2012-03-14
PUJIAO EQUIP IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, in the teaching process, there is no relevant teaching tool for displaying the induced current. Beginners are not very interested in learning the phenomenon of electromagnetic induction. Therefore, the applicant hopes to provide a method to demonstrate the phenomenon of electromagnetic induction with light emitting diode device

Method used

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  • Device for demonstrating electromagnetic induction phenomena with light emitting diodes
  • Device for demonstrating electromagnetic induction phenomena with light emitting diodes

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Embodiment Construction

[0011] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0012] see figure 1 , a device for demonstrating electromagnetic induction with a light-emitting diode, comprising a demonstration board 100, on which a conductive seat 200 is arranged, and the two ends of the conductive seat 200 are respectively connected to the two ends of a cylindrical hollow coil 400 through wires 300, conducting electricity Two groups of light emitting diodes with different light emitting colors are arranged on the seat 200 , that is, the first group of light emitting diodes 510 and the second group of light emitting diodes 520 . The first group of light emitting diodes 510 and the second group of light emitting diodes 520 are arranged oppositely. A split bar magnet 600 is disposed inside the hollow coil 400 .

[0013] Th...

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Abstract

The invention provides a device for demonstrating electromagnetic induction phenomena with light emitting diodes, which comprises a demonstrating board, wherein an electricity conducting base is arranged on the demonstrating board, the two ends of the electricity conducting base are respectively connected with the two ends of a cylindrical hollow coil through wires, two groups of light emitting diodes with different light emitting colors are arranged on the electricity conducting base, the two groups of light emitting diodes are oppositely arranged, and split strip-shaped magnets are arranged in the hollow coil. The two groups of light emitting diodes are oppositely arranged, and the unidirectional electricity conducting properties of the light emitting diodes are utilized. When the split strip-shaped magnets move from top to the bottom, one group of light emitting diodes emit light, and the other group is off. When the split strip-shaped magnets move from bottom to the top, the light emitting conditions of the two groups of light emitting diodes are opposite. The invention has the advantages of simple structure and convenience for manufacture. When the device is used during teaching, electromagnetic induction phenomena can be visually displayed. The device can improve the learning interest of a student and perform a positive function on learning.

Description

technical field [0001] The invention relates to the field of teaching aids, in particular to a device for demonstrating electromagnetic induction phenomena by using light emitting diodes. Background technique [0002] Electromagnetic induction (Electromagnetic induction) phenomenon means that a conductor placed in a changing magnetic flux will generate an electromotive force. This electromotive force is called induced electromotive force or induced electromotive force. If the conductor is closed into a loop, the electromotive force will drive electrons to flow, forming an induced current (induced current). [0003] At present, in the teaching process, there is no relevant teaching tool for displaying the induced current. Beginners are not very interested in learning the phenomenon of electromagnetic induction. Therefore, the applicant hopes to provide a method to demonstrate the phenomenon of electromagnetic induction with light emitting diode device. Contents of the inve...

Claims

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Application Information

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IPC IPC(8): G09B23/18
Inventor 周惠中
Owner PUJIAO EQUIP IND
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