CN2781180Y

CN2781180Y - LED fire energency lighting device

Info

Publication number: CN2781180Y
Application number: CNU2005200092495U
Authority: CN
Inventors: 鲁永忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-30
Filing date: 2005-04-30
Publication date: 2006-05-17
Anticipated expiration: 2015-04-30

Abstract

The utility model relates to an LED fire emergency lighting device which comprises a lamp holder, a power cord, a circuit board, a plurality of LEDs which are arranged on the circuit board, an accumulator which is arranged under the circuit board, and a power supply circuit which is used for connecting the power cord, the LEDs and the accumulator. The utility model is characterized in that the LEDs are uniformly distributed on the circuit board at intervals, and the spacing range is between 10 millimeters and 20 millimeters; a diffusion cover which is used for covering the LEDs is connected with the lamp holder, and the diffusion cover is provided with a plurality of plane-convex lenses or convex-concave lenses which are in a reticular arrangement. The utility model overcomes the defect of poor light scattering of a lighting device which is composed of a plurality of LEDs, and the intensity of illumination and the uniformity of the intensity of illumination of the lighting device are enhanced. The utility model has the advantages of simple structure and reliable performance, and can achieve the requirements of fire emergency lighting.

Description

A kind of LED fire-fighting emergency headlamp

Technical field

The utility model relates to lighting, is specifically related to a kind of LED fire-fighting emergency headlamp.

Background technology

For security needs, in public building, all be provided with fire-fighting emergency headlamp.The light source of traditional fire-fighting emergency headlamp tool is to adopt incandescent lamp or fluorescent lamp or electricity-saving lamp, and not only energy consumption height, life-span are short, and the heating of power part position damages easily, generally just must maintenance change less than 1 year.In addition, also need be equipped with the electrical storage device that a cover can provide high electric current, in order to powering to fire-fighting emergency headlamp when having a power failure, the volume and weight of this electrical storage device is bigger, is installed on the wall, can bring inconvenience.Novel solid cold light source LED compares with traditional fire-fighting emergency headlamp tool, has the advantage that the life-span is long, low in energy consumption, anti-vibration is impacted, reaction is fast, reliability is high, the operating characteristic of its low-voltage very is fit to need to be equipped with the fire emergency of battery, both can simplify circuit, can reduce cost again.But adopt the light source of the light fixture of LED that many light emitting diodes need be installed, promptly be made up of a plurality of spot lights, the light scattering is poor, and the uniformity of illumination and illumination is relatively poor.The name of CN2689050Y bulletin is called the utility model patent of " a kind of novel light-emitting diode lampshade ", its technical scheme is: reach the astigmatism body that is connected with base by LED seat and constitute, the front end of astigmatism body is the flare shape structure that caves inward, be provided with the groove that inlays of diode in the afterbody, the back side of astigmatism body also is provided with reflector layer.This is to improving a kind of trial of led lamp scattering.

Summary of the invention

The purpose of this utility model provides a kind of LED fire-fighting emergency headlamp, and it can improve the uniformity of scattering, raising illumination and the illumination of light, and simple in structure, dependable performance can reach the requirement of fire emergency.

A kind of LED fire-fighting emergency headlamp described in the utility model, comprise lamp socket, power line, circuit board, be located at a plurality of light emitting diodes on the circuit board and be located at battery below the circuit board, and the power supply circuits that connect power line, a plurality of light emitting diode and battery, it is characterized in that, the a plurality of light emitting diodes space that is located on the circuit board is evenly distributed, and spacing distance is the 10-20 millimeter; The diffuser that covers a plurality of light emitting diodes is connected on the lamp socket, diffuser be provided with a plurality of diameters that are netted arrangement greater than 5 millimeters, less than 15 millimeters round lens.

Described a kind of LED fire-fighting emergency headlamp, the round lens on its diffuser is a planoconvex spotlight, perhaps is " meniscus ".Adopt planoconvex spotlight spot light can be amplified, and the ray that sends is refracted as parallel rays, overcome the defective of the lighting light scattering difference of a plurality of light emitting diodes compositions.Meniscus has the effect of divergent rays, but the ray that the divergence point light source sends can overcome the defective of the lighting light scattering difference that a plurality of light emitting diodes form equally.

Described a kind of LED fire-fighting emergency headlamp is located at a plurality of light emitting diodes on the circuit board and connects mutually and be connected with the high-voltage alternating power supply circuits; The high-voltage alternating power supply circuits are made up of reduction voltage circuit rectification circuit, charging control circuit, testing circuit, charge/discharge control circuit, booster circuit, constant-current circuit and battery; The a plurality of light emitting diode grouping parallel connections that perhaps are located on the circuit board are connected with the low-voltage DC supply circuit; The low-voltage DC supply circuit is made up of mu balanced circuit, rectification circuit, charging control circuit, testing circuit, charge/discharge control circuit and battery.

Described a kind of LED fire-fighting emergency headlamp is characterized in that battery is a nickel-cadmium cell.

The utility model is compared with prior art and is had the following advantages: the defective that has overcome the lighting light scattering difference of a plurality of light emitting diodes compositions, the illumination of light fixture and the uniformity of illumination have been improved, simple in structure, dependable performance can reach the requirement of fire emergency.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the high-voltage alternating power supply circuit.

Fig. 3 is the low-voltage DC supply circuit diagram.

The specific embodiment

Embodiment one: referring to Fig. 1, Fig. 2, the high-voltage alternating power supply circuits are arranged on the circuit board 3, input is connected with power line 2; With nickel-cadmium cell be battery 5 be installed in circuit board 3 below, and be connected with the high-voltage alternating power supply circuits; Is that 10 millimeters layouts are installed on the circuit board 3 with 48 light emitting diodes 4 by the space distance, and series connection is connected with the high-voltage alternating power supply circuits mutually; To be provided with the diffuser 6 of the planoconvex spotlight 7 of 5.5 millimeters of a plurality of diameters that are netted arrangement, cover the top of 48 light emitting diodes and be connected on the lamp socket 1, promptly constitute first kind of form of implementation.

Embodiment two: referring to Fig. 1 and Fig. 3, on circuit board 3, input is connected with power line 2 with the low-voltage DC supply circuit arrangement; With nickel-cadmium cell be battery 5 be installed in circuit board 3 below, and be connected with the low-voltage DC supply circuit; Is that 15 millimeters layouts are installed on the circuit board 3 with 48 light emitting diodes 4 by the space distance, and the grouping parallel connection is connected with the low-voltage DC supply circuit; To be provided with the diffuser 6 of the meniscus 7 of 14 millimeters of a plurality of diameters that are netted arrangement, cover the top of 48 light emitting diodes and be connected on the lamp socket 1, promptly constitute second kind of form of implementation.

Embodiment three: referring to Fig. 1, Fig. 2, the high-voltage alternating power supply circuits are arranged on the circuit board 3, input is connected with power line 2; With nickel-cadmium cell be battery 5 be installed in circuit board 3 below, and be connected with the high-voltage alternating power supply circuits; Is that 12 millimeters layouts are installed on the circuit board 3 with 48 light emitting diodes 4 by the space distance, and series connection is connected with the high-voltage alternating power supply circuits mutually; To be provided with the diffuser 6 of the meniscus 7 of 10 millimeters of a plurality of diameters that are netted arrangement, cover the top of 48 light emitting diodes and be connected on the lamp socket 1, promptly constitute the third form of implementation.

Embodiment four: referring to Fig. 1 and Fig. 3, on circuit board 3, input is connected with power line 2 with the low-voltage DC supply circuit arrangement; With nickel-cadmium cell be battery 5 be installed in circuit board 3 below, and be connected with the low-voltage DC supply circuit; Is that 10 millimeters layouts are installed on the circuit board 3 with 48 light emitting diodes 4 by the space distance, and the grouping parallel connection is connected with the low-voltage DC supply circuit; To be provided with the diffuser 6 of the planoconvex spotlight 7 of 14 millimeters of a plurality of diameters that are netted arrangement, cover the top of 48 light emitting diodes and be connected on the lamp socket 1, promptly constitute the 4th kind of form of implementation.

Claims

1, a kind of LED fire-fighting emergency headlamp, comprise lamp socket (1), power line (2), circuit board (3), be located at a plurality of light emitting diodes (4) on the circuit board and be located at battery (5) below the circuit board, and the power supply circuits that connect power line, a plurality of light emitting diode and battery, it is characterized in that, a plurality of light emitting diodes (4) space that is located on the circuit board is evenly distributed, and spacing distance is the 10-20 millimeter; The diffuser (6) that covers a plurality of light emitting diodes is connected on the lamp socket, diffuser be provided with a plurality of diameters that are netted arrangement greater than 5 millimeters, less than 15 millimeters round lens (7).

2, a kind of LED fire-fighting emergency headlamp according to claim 1 is characterized in that, the round lens on the diffuser (7) is a planoconvex spotlight, perhaps is " meniscus ".

3, a kind of LED fire-fighting emergency headlamp according to claim 1 and 2 is characterized in that, be located on the circuit board a plurality of light emitting diodes (4) mutually series connection be connected with the high-voltage alternating power supply circuits or the parallel connection of dividing into groups is connected with the low-voltage DC supply circuit.

4, a kind of LED fire-fighting emergency headlamp according to claim 1 and 2 is characterized in that, battery (5) is a nickel-cadmium cell.