CN201110465Y

CN201110465Y - Instruction alarm LED electric torch

Info

Publication number: CN201110465Y
Application number: CNU2007200163080U
Authority: CN
Inventors: 王铁夫
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-30
Filing date: 2007-11-30
Publication date: 2008-09-03
Anticipated expiration: 2017-11-30

Abstract

The utility model discloses an LED electric torch which is provided with an inbreaking alarm function, which is characterized in that the lamp of the electric torch is not only provided with a plurality of high-brightness LED for illuminating but also provided with a pyroelectric infrared sensor for detecting mobile human bodies, and a lens on the lamp is also composed of a plane optical lens and a Fresnel lens. The LED electric torch can give an alarm if someone moves in a certain scale which is illuminated be the electric torch in the alarm waiting state, thereby the LED electric torch not only can give brightness to people in the dark but also stands guard like a guard when people fall asleep.

Description

Intrusion alarm LED flashlight

Technical field

The utility model belongs to a kind of portable field of illuminating lamps with self-contained battery, a kind of specifically LED flashlight that increases the intrusion alarm function.

Background technology

Flashlight is as a kind of portable illuminating lamp, for people's night trip has brought very big convenience, brought certain sense of security at heart also for the night trip people.But the time when people fall asleep, if the door and window of family is tight or opening the window sleep or feeling at one's side environment safety inadequately then to be bound to worry burglar or other bad persons' invasion at heart that in other local sleep this can make you sleep very not steady and surely.If you have a kind of like this flashlight at one's side, it can not only allow you obtain light in the dark, but also possesses a kind of like this function: in sleep, it is placed at one's side or indoor other place, allow it face toward door or window, if it will send chimes of doom immediately in someone inlet chamber, as a sentry for you stand sentine, the sense of security of yours at heart is bound to increase many like this.

Although existing multifunctional electric torch kind is a lot, function is different, the function of being added generally just has recreational or designs for convenient and practical, as the band music, the band lighter etc., and the LED flashlight that possesses such function does not still have at present.

Summary of the invention

The purpose of this utility model is to invent a kind of LED flashlight with intrusion alarm function for this reason, when being in the warning holding state, moves in a certain scope of flashlight direction of illumination if any the people, just can send chimes of doom to remind owner and scaring invador.

Description of drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is the generalized section of the utility model cap part.

Fig. 3 is the schematic block circuit diagram of the utility model illumination section and the part of reporting to the police.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described.Whole device as shown in Figure 1 is divided into lamp holder 11 and lamp body 12 two parts, and the outside of lamp body is equipped with switch 8, charging indicator light 9 and charging plug 10, and wherein switch 8 is the switches with three gears of cutting out, throw light on, report to the police.Leave its inside of sound penetrating hole 7 and be equipped with loudspeaker near the lamp housing the switch, chimes of doom is sent by these several holes.The circuit board that the inside of lamp body is equipped with battery, loudspeaker and is provided with charging circuit, audio communication generation circuit and detection treatment circuit.

The structure of cap part is by shown in Figure 2, front end at lamp holder is covered with lens of being made up of plane optical lens 5 and Fresnel Lenses 6, the inside of lens is Lamp cups 3, is equipped with several high-brightness LEDs (light emitting diode) 2 and at least one pyroelectric infrared sensor 1 on the circuit board of Lamp cup bottom.After planar lens penetrates, the infrared ray that extraneous human body sent incides in the rpyroelectric infrared sensing after converging by Fresnel Lenses the light that high-brightness LED sent by Lamp cup optically focused.In order to prevent false alarm, selected Fresnel Lenses is the lens as single district multistage that horizontal low-angle is fit to partial detection specially.

3 is schematic block circuit diagram of the illumination and the part of reporting to the police among the figure, and whole device is in and closes when switch k places a shelves, is illumination condition when placing the b shelves, this moment high-brightness LED 2 luminous and by lamp optically focused after planar lens penetrate.Be the warning holding state when switch k places the c shelves, if just this moment pyroelectric sensor 1 detect infrared ray that mobile human body sends can output detection signal, this signal is input to processor IC ₁In, IC ₁Form by operational amplifier, noise suppressed, wave filter and comparator, through IC ₁Detection signal after the processing goes to trigger the audio communication IC circuit at last ₂, IC ₂Just export an audio alarming signal that continues a minute after being triggered, and send chimes of doom by loudspeaker.

Claims

1, a kind of intrusion alarm LED flashlight comprises lamp holder and lamp body.It is characterized in that not only having installed in the lamp holder several high-brightness LEDs and be used for the Lamp cup of optically focused, but also at least one pyroelectric infrared sensor has been installed, both pyroelectric infrared sensor had been installed in the lamp holder at high-brightness LED and Lamp cup place.

2, intrusion alarm LED flashlight according to claim 1 is characterized in that the lens of lamp holder front end are made up of plane optical lens and Fresnel Lenses.

3, intrusion alarm LED flashlight according to claim 2, it is characterized in that the plane optical lens is corresponding to high-brightness LED, Fresnel Lenses is corresponding to pyroelectric infrared sensor, the light that high-brightness LED sends penetrates through the plane optical lens, and the infrared ray that extraneous human body sends incides in the pyroelectric infrared sensor after converging by Fresnel Lenses.