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Self-power-generating handheld torch

A self-generating and flashlight technology, applied in the field of flashlights, can solve the problems of hindering the rapid relative movement of the magnet and the coil, troublesome manual shaking, and only waste, to achieve good power generation effect, improve power generation efficiency, and reduce friction.

Inactive Publication Date: 2011-06-01
华东师范大学第一附属中学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But they also have their own problems: if the dry battery type flashlight is used up and there is no dry battery, it can only be a waste; and the battery type, the charging time is long, and the flashlight itself is also very heavy. The problem of power outages
But these self-charging flashlights also have problems: artificial shaking is too troublesome, and because of the friction between the magnet and the coil, the rapid relative movement between the magnet and the coil is hindered, so the power generation efficiency is poor

Method used

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Embodiment Construction

[0012] The technical characteristics of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] Such as figure 1 The shown self-generating hand-held flashlight includes a light emitter 1, a light-concentrating bowl, a power storage device and a power generation device. The power generation device is composed of a permanent magnet 3 and a tightly wound coil 2, and the permanent magnet 3 is placed Slide in the coil 2; the permanent magnet 3 is connected with the inner wall of the coil 2 through several symmetrical elastic bands 4 around, and the permanent magnet 3 is suspended in the coil 2.

[0014] When in use, shake along the axis of the coil 2 , the permanent magnet 3 vibrates at a high speed on the axis of the coil 2 , thereby generating current, which is supplied to the power storage device, and then supplies power to the light emitter 1 .

[0015] Because the elastic band 4 suspends the perman...

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PUM

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Abstract

The invention discloses a self-power-generating handheld torch, comprising a light emitter, a light focusing bowl, an electric storage device and a power generating device, wherein the power generating device consists of a permanent magnet and coils tightly wound; the permanent magnet is slidably placed in the coils; the periphery of the permanent is connected with the inner walls of the coils by means of a plurality of symmetric elastic belts; and the permanent magnet is suspended in the coils. The self-power-generating handheld torch provided by the technical scheme of the invention has the advantages that the structure is simple; simpleness, convenience and practicability are ensured; and the friction of a power generating device can be reduced, kinetic energy is increased, and the power generating efficiency is greatly improved.

Description

technical field [0001] The invention discloses a flashlight, in particular to a self-generated and charged flashlight. Background technique [0002] Flashlight is a common article in people's daily life, and present flashlight generally has two kinds, and a kind of is dry cell type, and a kind of is storage battery type. The dry battery type has a simple structure and is easy to use, and can continue to illuminate by replacing the dry battery in time; the battery type flashlight has a long service life, no need to replace the power supply, and can be charged at leisure. But they also have their own problems: if the dry battery type flashlight is used up and there is no dry battery, it can only be a waste; and the battery type, the charging time is long, and the flashlight itself is also very heavy. The problem of power outage in the middle. Therefore people have designed the flashlight of voluntary power generation charging illumination, as pinching rechargeable type, shak...

Claims

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Application Information

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IPC IPC(8): F21L4/00F21L13/06H02K35/02F21Y101/02F21Y115/10
Inventor 杜雨菲
Owner 华东师范大学第一附属中学
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