CN201764372U

CN201764372U - Low power patch type LED traffic signal lamp light producing device

Info

Publication number: CN201764372U
Application number: CN2010205352305U
Authority: CN
Inventors: 董飞鸿
Original assignee: WUXI LUJIA PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: WUXI LUJIA PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2010-09-19
Filing date: 2010-09-19
Publication date: 2011-03-16
Anticipated expiration: 2020-09-19

Abstract

The utility model relates to a low power patch type LED traffic signal lamp light producing device including an LED lamp plate, a light distribution lens plate and a transparent protective panel, the LED lamp plate consists of a plurality of surface mounting light emitting diodes and a printed circuit board, the light emitting diodes are uniformly distributed on the end face of the printed circuit board, the LED lamp plate is provided with the light distribution lens plate which is fixed by a plurality of self tapping screws, a plurality of convex lenses are uniformly distributed on the light distribution lens plate corresponding to the light emitting diodes on the printed circuit board, the transparent protective panel is sleeved on the external side of the light distribution lens plate. The beneficial effects of the utility model are that the low power patch type LED, replacing the commonly used pin type LED at present as the light producing source of the traffic signal lamp, has the characteristics of small volume, low power dissipation, well heat dissipation, long life time, high light utilization rate, advance production technology etc., and the problems of spotlight and light distribution of the patch type LED with large light producing angle are solved by the specially-produced light distribution lens plate.

Description

A kind of low-power adopting surface mounted LED traffic signals lamp lighting device

Technical field

The utility model relates to a kind of low-power adopting surface mounted LED traffic signals lamp lighting device.

Background technology

The LED(light emitting diode) as a kind of new type light source, having power consumption, little (electric current has only 10 ~ 20mA), brightness height (light intensity can reach up to ten thousand mcd), volume little (diameter I reach 3mm), (light emitting diode only heavy zero point several grams) in light weight, long advantages such as (average life spans 100,000 hours) of life-span.Now progressively replace incandescent lamp, low-voltage halogen tungsten to make road traffic signal lamp.The LED light source is owing to have that power consumption is low, luminous efficiency is high and advantage such as long service life, add recent improvement of Manufacturing Technology, the luminosity of led light source more is higher than in the past, and the also reduction gradually of its cost, and therefore the trend that progressively replaces conventional bulb or fluorescent lamp arranged.In view of this, for significantly reducing electricity consumption saving the energy, and reduce the replacing bulb cost, various countries change former tradition one after another with the traffic lights of bulb as light source, and replace the LED traffic lights.By the LED of higher brightness, can strengthen the identification of each light color, and the sun phantom (sun-phantom) that produces because of the sunshine reflection easily when avoiding utilizing conventional bulb, to reduce the driver because of judging the danger that is caused by accident.Yet LED has the restriction of its light firing angle, and for the LED traffic lights that Transparent lamp shade only is set, it can't bring into play the effect (visual angle is narrower) of preferable luminous and identification; Though the improvement of installing lens was arranged afterwards, only concentrate to strengthen brightness, the effect that still can't make the driver that is positioned at the traffic signals below or pedestrian reach identification easily also can't obtain preferable luminous efficiency.

In common people's the angular field of view, to improve brightness, to increase identification, but this known technology exists the light defective pockety that euphotic belt and light blanking bar space are caused, its light of LED is after the minute surface refraction, still can know the mapping that difference is single led, and the integral LED shadow can't be formed the plane of a homogenising, still limited for the reinforcement of identification, and not attractive in appearance.And the pins type LED that existing traffic lights generally uses is as the traffic lights illuminating source, and there are deficiencies such as volume is beaten, power consumption height, weak heat-dissipating, the life-span is short, light utilization efficiency is low in this kind traffic lights.

The utility model content

The purpose of this utility model provides a kind of low-power adopting surface mounted LED traffic signals lamp lighting device, adopt the low-power adopting surface mounted LED to substitute the present pins type LED that generally uses as the traffic lights illuminating source, have characteristics such as volume is little, low in energy consumption, good heat dissipation, the life-span is long, light utilization efficiency is high, production technology advanced person, solved the optically focused and the luminous intensity distribution problem of the big adopting surface mounted LED of lighting angle by special light-distribution lens plate (convex lens).

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of low-power adopting surface mounted LED traffic signals lamp lighting device; comprise the LED lamp plate; the light-distribution lens plate; transparency protected panel; described LED lamp plate is made of several surface-adhered type light emitting diodes and printed substrate; light emitting diode is uniformly distributed in the end face of printed substrate; and fix by surface mount process; the LED lamp plate is provided with the light-distribution lens plate; the light-distribution lens plate is fixed by some self-tapping screws; the corresponding convex lens in light emitting diode position on the light-distribution lens plate on even distribute some and the printed substrate, the outside of light-distribution lens plate is covered with transparency protected panel.

The beneficial effects of the utility model are: adopt the low-power adopting surface mounted LED to substitute the present pins type LED that generally uses as the traffic lights illuminating source, have characteristics such as volume is little, low in energy consumption, good heat dissipation, the life-span is long, light utilization efficiency is high, production technology advanced person, solve the optically focused and the luminous intensity distribution problem of the big adopting surface mounted LED of lighting angle by special light-distribution lens plate (convex lens), satisfied the specification requirement of traffic lights national standards.

Description of drawings

With reference to the accompanying drawings the utility model is described in further detail below.

Fig. 1 is the decomposition texture schematic diagram of the described low-power adopting surface mounted LED of the utility model embodiment traffic signals lamp lighting device.

Among the figure:

1, LED lamp plate; 2, light-distribution lens plate; 3, transparency protected panel; 4, light emitting diode; 5, printed substrate; 6, convex lens.

The specific embodiment

As shown in Figure 1; the described a kind of low-power adopting surface mounted LED traffic signals lamp lighting device of the utility model embodiment; comprise LED lamp plate 1; light-distribution lens plate 2; transparency protected panel 3; described LED lamp plate 1 is made of several surface-adhered type light emitting diodes 4 and printed substrate 5; light emitting diode 4 is uniformly distributed in the end face of printed substrate 5; and fix by surface mount process; LED lamp plate 1 is provided with light-distribution lens plate 2; light-distribution lens plate 2 is fixed by some self-tapping screws; the corresponding convex lens 6 in light emitting diode 4 positions on the light-distribution lens plate 2 on even distribute some and the printed substrate 5, the outside of light-distribution lens plate 2 is covered with transparency protected panel 3.

Single light emitting diode running current is 20 milliamperes, and lighting angle (half light intensity angle) is the surface mount light emitting diode (SMD LED) of 90 degree-160 degree.Adopt the low-power adopting surface mounted LED to substitute the present pins type LED that generally uses as the traffic lights illuminating source, have characteristics such as volume is little, low in energy consumption, good heat dissipation, the life-span is long, light utilization efficiency is high, production technology advanced person, solve the optically focused and the luminous intensity distribution problem of the big adopting surface mounted LED of lighting angle by special light-distribution lens plate (convex lens), satisfied the specification requirement of traffic lights national standards.

Claims

1. low-power adopting surface mounted LED traffic signals lamp lighting device; comprise LED lamp plate (1); light-distribution lens plate (2) and transparency protected panel (3); it is characterized in that: described LED lamp plate (1) is made of several surface-adhered type light emitting diodes (4) and printed substrate (5); light emitting diode (4) is uniformly distributed in the end face of printed substrate (5); LED lamp plate (1) is provided with light-distribution lens plate (2); light-distribution lens plate (2) is gone up the corresponding convex lens in light emitting diode (4) position (6) on evenly distribute some and the printed substrate (5), and the outside of light-distribution lens plate (2) is covered with transparency protected panel (3).