CN2491922Y

CN2491922Y - Traffic signal lamp device

Info

Publication number: CN2491922Y
Application number: CN01229260U
Authority: CN
Inventors: 邢陈震崙; 李柏贤; 李逸祥
Original assignee: Lite On Electronics Inc
Current assignee: Lite On Technology Corp
Priority date: 2001-06-28
Filing date: 2001-06-28
Publication date: 2002-05-15
Anticipated expiration: 2011-06-28

Abstract

The utility model relates to a traffic light device, which comprises a traffic light shell, a copper foil base board, a plurality of low thermal resistance light-emitting diodes, and a traffic light coating and the like, wherein the copper foil base board is arranged on the interior of the base section of the traffic light shell and forms an inclination of 5-45 degrees or so with the central axial line of the base section, a plurality of low thermal resistance light-emitting diodes are arranged on the copper foil base board as an illuminating source of the traffic light to reduce the number of the light-emitting diodes and to offer excellent product reliability to accord to the standard of brightness of the traffic lights.

Description

Traffic signal light device

The utility model relates to a kind of traffic signal light device, refer in particular to the traffic signal light device of a kind of available low thermal resisting LED as light source, provide preferable product reliability with the quantity that reduces the use of diameter phi 3mm or φ 5mm light emitting diode, and preferable brightness can be provided, and satisfy the standard of traffic lights brightness.

Traffic lights (traffic lights) are to be used for the crossroad of Ordinary Rd or the railroad crossing signal lamp device as caution or indication usefulness, and the structure of this traffic signal light device has following several:

(1), see also shown in Figure 1, this traffic signal light device is to be illuminating source with bulb 60, this bulb 60 is mounted on the pedestal 11 of traffic signals lamp housing 1, and is provided with a scattering sheet 5 in traffic signals lamp housing 1, goes out through 4 dissipations of traffic signals lampshade with the light that bulb 60 is sent.

But this traffic signal light device has following several disappearances technically:

(1). poor stability.

Because the life-span of bulb is short, behind malfunction and failure, can cause not effect of traffic lights, cause the confusion and unexpected generation of traffic indirectly, so the security that provides is not good.

(2). the maintenance cost height.

Because therefore about 5,000 hours of the mean lifetime of bulb will expend many maintenance costs in the renewal operation of bulb.

(3). the energy consumption height.

Because the power consumption power of bulb is about 60-100 watt, and be the traffic signal light device of light source with the light emitting diode, its power consumption is about below 15-20 watt, so be the traffic signal light device of light source with the bulb, its electric power quite consumes.

(2), see also shown in Figure 2ly, this traffic signal light device is that the light emitting diode 70 with a plurality of φ 3mm or φ 5mm is a light source, these light emitting diodes 70 are mounted on the rear of traffic signals lampshade 4.

Above-mentioned (two) are to be the traffic signal light device of light source with the light emitting diode, though approximately (one) saving of its power consumption so still has two shortcomings:

(1). luminous display surface brightness irregularities:

Because its light source is to be close to the traffic signals lampshade, therefore after one or several led failure, promptly can cause the brightness irregularities of the display surface of this traffic signals lampshade, and the effect of influence demonstration.

(2). the light source utilization ratio is poor.

According to the standard test standard of traffic lights, the brightness demand above the central axis of traffic signals lamp housing there is no standard, because of the brightness of axis top does not influence driver or the pedestrian identification to signal lamp.Therefore, its light source has half to show for signal to there is no help approximately.

The purpose of this utility model is to propose a kind of traffic signal light device of being made up of lamp housing, basal plate, light emitting diode and lampshade, it has improved reliability of products, reduced the use amount of light emitting diode, and has preferable brightness, and satisfied the requirement of signal lamp brightness standard, thereby solved the existing in prior technology problem.

The technical scheme that the utility model adopted is that it includes:

One traffic signals lamp housing is provided with a base portion in it;

One basal plate, it is located at the base portion inboard of traffic signals lamp housing, and forms an inclination angle that meets traffic lights brightness standard with the central axis of this base portion; And

A plurality of low thermal resistances are as the light emitting diode of traffic lights light source, and it is located on the basal plate.

The utlity model has following characteristics:

(1). the traffic signal light device that with the low thermal resisting LED is light source on average can be saved about power consumption more than 80%, and can reduce the quantity that light emitting diode (LED) uses, preferable product reliability is provided, traffic lights with a diameter 300mm, former will be with hundreds of light emitting diode approximately, and with technology of the present utility model only the low thermal resisting LED of need below 18 can reach the brightness demand of standard.

(2). preferable brightness is provided and satisfies the standard of traffic lights brightness.

(3). with light source more efficient be applied to must light-emitting zone.

(4). provide the preferable security and the consumption of reduction electric power energy, and the semiconductor life-span is long, need keep in repair hardly.

(5). can avoid the phenomenon of light emitting diode traffic lights because of one or several the display surface brightness disproportionation that causes that lost efficacy.

Fig. 1 is a synoptic diagram of known traffic signal light device;

Fig. 2 is another synoptic diagram of known traffic signal light device;

Fig. 3 is a synoptic diagram of the present utility model;

Fig. 4 is the side view of the single low thermal resisting LED of the utility model.

Further specify preferred embodiment of the present utility model in conjunction with above-mentioned each accompanying drawing now.See also Fig. 3 and Fig. 4, the utility model relates to the traffic signal light device of a low thermal resisting LED, and it comprises a traffic signals lamp housing 1, a Copper Foil basal plate 2, a plurality of low thermal resisting LED 3, a traffic signals lampshade 4; Wherein:

Low thermal resisting LED 3 is located on the Copper Foil basal plate 2; light source as traffic lights; be provided with a heat sink 31 in each low thermal resisting LED 3; a luminescence chip 32 is fixed in adhesion on this heat sink 31; the connection pad of luminescence chip 32 is to be connected with circuit substrate 33; and form a protective coating 34, so that its tool great heat radiation effect.

This Copper Foil basal plate 2 is located at base portion 10 inboards of traffic signals lamp housing 1, and is the inclination angle of 5-45 degree with central axis, most of light source is concentrated on the central axis below of traffic lights, provides higher brightness to be easier to identification for the user.

Traffic signals lamp housing 1 is made by metal materials such as aluminium, copper, or is made by the plastic material metal material for coating, and is provided with a scattering sheet 5 in traffic signals lamp housing 1, goes out with the light dissipation that low thermal resisting LED 3 is sent.

Traffic signals lampshade 4 is made by plastic material, is mounted on the openend of traffic signals lamp housing 1.

Whereby, provide preferable product reliability with the quantity that reduces the use of φ 3mm or φ 5mm light emitting diode, and preferable brightness can be provided, and satisfy the standard of traffic lights brightness.

Above-described only is the specific embodiment of one of the utility model the best; but structural attitude of the present utility model is not limited thereto; anyly be familiar with the personage of this skill in field of the present utility model; can think easily and variation or modification, all can be encompassed in the scope of following the utility model claims protection.

Claims

1. traffic signal light device is characterized in that it comprises:

One traffic signals lamp housing is provided with a base portion in it;

2. traffic signal light device as claimed in claim 1 is characterized in that described lamp housing, and its openend can engage a traffic signals lampshade, and is provided with a scattering sheet in the traffic signals lamp housing.

3. traffic signal light device as claimed in claim 1 is characterized in that described basal plate, and the central axis of the base portion of it and traffic lights is the inclination angle of 5-45 degree.

4. traffic signal light device as claimed in claim 1 is characterized in that described basal plate, and it is a copper clad laminate.

5. traffic signal light device as claimed in claim 1; it is characterized in that it is provided with a heat sink in described each low thermal resisting LED, the sticking luminescence chip of establishing on the heat sink; the connection pad of luminescence chip is to be connected with printed circuit board (PCB), and forms a protective coating.