CN104500992A - Self-generating flashlight - Google Patents

Abstract

The invention discloses a self-generating flashlight, which comprises: a flashlight body, a lamp holder is arranged at the front end, and a white LED lamp is arranged inside the lamp holder; a power generation device is arranged inside the flashlight body, and the power generation device includes : an electromagnetic induction device, an energy storage capacitor, a lithium battery, the energy storage capacitor is connected in parallel with the electromagnetic induction device, the energy storage capacitor is connected in parallel with the lithium battery; a control switch, a resistor, one end of the control switch is connected to the One end of the lithium battery is connected, the other end is connected to one end of the white LED light, and the other end of the white LED light is connected to the resistor and the other end of the lithium battery in turn; The energy storage capacitors are connected in parallel. The self-generating torch can generate electricity by itself, so that lighting can still be performed in the case of no electricity.

Description

A self-generating flashlight

technical field

The invention relates to the field of flashlights, in particular to a self-generating flashlight.

Background technique

Since the 1870s, when electricity entered the field of production as an energy source, electricity replaced steam, and humans entered the "electric age", our lives have been inseparable from electricity. In today's era of heavy power load, for various reasons, power outages occur from time to time; or there is no street light installed on the way off work every night, or there is a sudden power outage when doing something and it needs to be completed urgently. Convenient lighting fixtures.

The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art.

Contents of the invention

The purpose of the present invention is to provide a self-generating torch, thereby overcoming the disadvantage of being unable to perform lighting in the absence of electricity.

In order to achieve the above object, the present invention provides a self-generating flashlight, comprising: a flashlight body, a lamp holder is provided at the front end, and a white LED lamp is arranged in the lamp holder; a power generation device is arranged in the flashlight body , the power generation device includes: an electromagnetic induction device, which includes a hollow plastic tube, a plurality of magnets, wires and two sealing covers; the plurality of magnets are placed in the hollow plastic tube, and the wires are tightly wrapped around the hollow plastic The surface of the tube, and the two ends of the wire extend to the outside, the two sealing caps seal the two ends of the hollow plastic tube; and four diodes, divided into two groups, each group of diodes are connected in series, the The two groups of diodes are connected in parallel, wherein the two ends of the wires are respectively connected to the series ends of the two groups of diodes; the energy storage capacitor and the lithium battery are connected in parallel with the two groups of diodes, so The energy storage capacitor is connected in parallel with the lithium battery; a control switch and a resistor are connected, one end of the control switch is connected to one end of the lithium battery, the other end is connected to one end of the white LED light, and the other end of the white LED light One end is sequentially connected to the resistor and the other end of the lithium battery; and a solar battery panel is connected in parallel with the energy storage capacitor and arranged in the lamp holder.

In the above technical solution, the energy storage capacitor is a farad capacitor.

In the above technical solution, the energy storage capacitor, the lithium battery, the control switch and the resistor are all arranged in the flashlight body.

Compared with the prior art, the present invention has the following beneficial effects:

1. The self-generating flashlight in the present invention utilizes Faraday’s electromagnetic induction principle. When the flashlight is shaken, the magnet placed in the hollow plastic tube shakes back and forth, and the coil on the hollow plastic tube cuts the magnetic induction line to generate current, and the generated current passes through The energy storage capacitor is stored, and then the lithium battery is charged, so that it can self-generate and supply white LED lights to light up.

2. While the white LED light is on, the solar panel absorbs the light to perform photoelectric conversion to charge the lithium battery, and in daily life, you can also place the flashlight in the sun to charge.

Description of drawings

Fig. 1 is a schematic structural diagram of a self-generating flashlight according to the present invention.

Fig. 2 is a schematic circuit diagram of the self-generating flashlight according to the present invention.

Explanation of main reference signs:

1-flashlight body, 2-electromagnetic induction device, 3-hollow plastic tube, 4-wire, 5-sealing cover, 6-diode, 7-lithium battery, 8-energy storage capacitor, 9-resistor, 10-control switch, 11-white LED light, 12-lamp holder, 13-solar panel.

Detailed ways

The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

As shown in Figures 1 to 2, a self-generating flashlight according to a specific embodiment of the present invention includes: a flashlight body 1, a power generating device, an energy storage capacitor 8, a lithium battery 7, a control switch 10, a solar panel 13 and a resistor 9. The front end of the flashlight body 1 is provided with a lamp holder, and a white LED lamp 11 is provided in the lamp holder 12; the power generation device is provided in the flashlight body 1, and the power generation device includes an electromagnetic induction device 2 and four diodes 6, the electromagnetic induction device 2 includes a hollow plastic tube 3, a plurality of magnets, a wire 4 and two sealing covers 5; a plurality of magnets are placed in the hollow plastic tube 3, and the wire 4 is tightly wrapped around the surface of the hollow plastic tube 3, and the two ends of the wire 4 Extending to the outside, two sealing covers 5 seal the two ends of the hollow plastic tube 3, and when the formed magnet tube is wound around the coil, the coil will cut the magnetic induction line to generate alternating current; the four diodes 6 are divided into two groups, each group The diodes 6 are connected in series, and the two groups of diodes 6 connected in series are connected in parallel, wherein the two ends of the wire 4 are respectively connected to the series ends of the two groups of diodes 6, and the diodes 6 are connected to allow direct current for storage; the energy storage capacitor 8 and Two groups of diodes 6 are connected in parallel. When connected, the current direction of the two groups of diodes 6 corresponds to the positive and negative electrodes of the energy storage capacitor 8. In this embodiment, the energy storage capacitor 8 adopts a farad capacitor, and the energy storage capacitor 8 is connected to the The batteries 7 are connected in parallel. When connected in parallel, the positive and negative poles of the energy storage capacitor 8 correspond to the positive and negative poles of the lithium battery 7; one end of the control switch 10 is connected to one end of the lithium battery 7, and the other end is connected to one end of the white LED light 11. The other end of the white LED lamp 11 is connected with the resistor 9 and the other end of the lithium battery 7 in turn. Wherein, the energy storage capacitor 8, the lithium battery 7, the control switch 10 and the resistor 9 are all located in the flashlight body. In this embodiment, a solar battery panel 13 can also be added, and the solar battery panel 13 is connected in parallel with the energy storage capacitor 8. And be arranged in the lamp holder 12, when the white LED lamp 11 shines, the solar panel 13 absorbs the light and performs photoelectric conversion to charge the lithium battery 7, and in daily life, the flashlight can also be charged in sunlight.

The self-generating flashlight in the present invention utilizes Faraday’s electromagnetic induction principle. When the flashlight is shaken, the magnet placed in the hollow plastic tube shakes back and forth, and the coil on the hollow plastic tube cuts the magnetic induction line to generate current, and the generated current passes through the energy storage. The capacitor is stored, and then the lithium battery is charged, so that the white LED light can be self-generated to light up, and the solar panel can also charge the battery.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to make and use various exemplary embodiments of the invention, as well as various Choose and change. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (3)

1. a flashlight with electric generation by itself, is characterized in that, comprising:

Flashlight body, its front end is provided with lamp socket, in described lamp socket, be provided with white led lamps;

TRT, it is located in described flashlight body, and this TRT comprises:

Electromagnetic induction device, it comprises hollow plastic sebific duct, multiple magnet, wire and two seal covers; Described multiple magnet is positioned in described hollow plastic sebific duct, and described wire is closely surrounded on the surface of described hollow plastic sebific duct, and the two ends of this wire extend to outside, and the two ends of described hollow plastic sebific duct seal by described two seal covers; And

Four diodes, are divided into two groups, and often organize diode and connect, the described two groups of diodes after series connection carry out parallel connection, and wherein, the two ends of described wire are connected with the series connection end of described two groups of diodes respectively;

Storage capacitor, lithium battery, described storage capacitor carries out in parallel with described two groups of diodes, and described storage capacitor is in parallel with described lithium battery;

Gauge tap, resistance, one end of described gauge tap is connected with one end of described lithium battery, and the other end is connected with one end of described white led lamps, and the other end of described white led lamps is connected with the other end of described resistance and described lithium battery successively; And

Solar panel, it is in parallel with described storage capacitor, and is located in lamp socket.

2. flashlight with electric generation by itself according to claim 1, is characterized in that, described storage capacitor is farad capacitor.

3. flashlight with electric generation by itself according to claim 1, is characterized in that, described storage capacitor, described lithium battery, gauge tap and resistance are all located in described flashlight body.