CN200968527Y

CN200968527Y - LED road lamp

Info

Publication number: CN200968527Y
Application number: CNU2006201224744U
Authority: CN
Inventors: 毛建亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-28
Filing date: 2006-07-28
Publication date: 2007-10-31
Anticipated expiration: 2016-07-28

Abstract

The utility model provides a LED streetlamp, including a shell, a glass cover, a reflection cover and a LED luminescent screen. The reflection cover and the LED luminescent screen are in the cavity constructed from the shell and the glass cover, the reflection cover is above the LED luminescent screen including a base board and LED units mounted on the base board, the LED luminescent screen is a large area aluminous base board; radiation fans are mounted on the back of the large area aluminous base board holding the LED units; a layer of white oil is painted on the large area aluminous base board. A large area aluminous base board is adopted as the LED units holding plate in the utility model, so the heat dissipating area is enlarged, the heat dissipation rate is increased, besides, radiation fans are arranged on the back of the LED units of the large area aluminous base board, the heat dissipation effect is further improved, the heat generated by the large power LED tends to be dissipated swiftly, so the service life of the LED is prolonged; the large area aluminous base board has a layer of white oil, the reflecting effect of the board is improved, the luminance of the LED is consequently improved.

Description

The LED street lamp

Technical field

The utility model relates to street lamp, particularly with the street lamp of great power LED as light-emitting component.

Background technology

The street lamp that uses generally all uses as light source by powerful bulb now, this street lamp brightness is big, good illumination effect, but the caloric value that the use of high-power bulb is is very big, cause the life-span of bulb generally shorter, and very big of the energy consumption of this high-power bulb street lamp, bulb must be changed after breaking down immediately in addition, otherwise can not continue to provide illumination.

The patent No. is that 03223205 utility model discloses a kind of street lamp that uses one group of LED as light emitting source, this street lamp uses on the street lamp that provides as the energy with solar energy now, topmost purpose is that the LED energy consumption is lower, by using LED to extend working time, but in the actual use, the LED street lamp is owing to adopt great power LED luminous, and its caloric value is big, during use the life-span of LED very short, use cost is very high.If increase the service life of LED, just must solve the problem of heat radiation.

Summary of the invention

The utility model provides a kind of LED street lamp that can effectively overcome above-mentioned deficiency, its perfect heat-dissipating, long service life.

The purpose of this utility model is achieved in that

It includes shell, cloche, reflection shield and LED group luminous plaque, reflection shield and LED group luminous plaque are positioned at the cavity of shell and cloche composition, reflection shield is above LED group luminous plaque, LED group luminous plaque includes substrate and the LED group that is installed on the substrate, and its improvement is: LED group luminous plaque is the large tracts of land aluminum substrate;

In the said structure, the back side of LED group is equipped with fin on the large tracts of land aluminum substrate;

In the said structure, the large tracts of land aluminum substrate is provided with the white oil coating.

In sum, LED street lamp of the present utility model adopts the loading plate of large tracts of land aluminum substrate as the LED group, area of dissipation and radiating rate have been increased, and the back side of LED group is equipped with fin on the large tracts of land aluminum substrate, further strengthened radiating effect, the heat that great power LED is produced in use sheds rapidly, in addition, the reflection shield auxiliary heat dissipation, heat is delivered on the reflection shield and lamp housing of aluminum, has increased the service life of LED, on the large tracts of land aluminum substrate, be provided with the white oil coating simultaneously, increase the reflected intensity of LED light, improved the luminous efficiency of LED.

Description of drawings

Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail

Fig. 1 is the utility model LED lamp post structure schematic diagram;

Fig. 2 is the structural representation of the LED group luminous plaque of the utility model LED street lamp.

The specific embodiment

As shown in Figure 1, the LED street lamp of present embodiment includes lamp housing 100, cloche 200, in the cavity of lamp housing 100 and cloche 200 compositions, be provided with reflection shield 110, be provided with LED group luminous plaque 120 below the reflection shield 110, great power LED behind the connection power supply on the LED group luminous plaque is luminous, realizes road lighting.

As shown in Figure 2, luminous group 120 of the LED of present embodiment is made up of LED group 121, large tracts of land aluminum substrate 122 and fin 123, LED group 121 and fin 123 are positioned at the both sides of large tracts of land aluminum substrate 122, the large tracts of land aluminum substrate has increased area of dissipation and radiating rate as the loading plate of LED group; Large tracts of land aluminum substrate surface is provided with the white oil coating, to strengthen the light reflection, improves the luminous efficiency of LED group; Fin 123 adopts anodic oxidation mode (being black) to increase radiating effect and improves ageing resistance, and reflection shield 110 is connected for luminous group 120 with LED, and reflection shield 110 auxiliary heat dissipations are delivered to heat on the reflection shield 110 and lamp housing 100 of aluminum.

Present embodiment is provided with single LED lamp holding circuit; solved and used on the LED lamp serial or parallel connection circuit; not because of the damage of single LED lamp, thereby cause other LED lamp not work and occur that voltage raises or electric current increases the function of other LED lamp and the fatal problem in life-span of influencing.

Simultaneously, the LED street lamp of present embodiment uses high-power LED constant-current supply, solves problems such as voltage, electric current instability in the long-term non-stop run of LED, and the working environment of a stable LED lamp is provided, and prolongs the life-span of LED lamp with this.

Claims

1, a kind of LED street lamp, it includes shell, cloche, reflection shield and LED group luminous plaque, reflection shield and LED group luminous plaque are positioned at the cavity of shell and cloche composition, reflection shield is above LED group luminous plaque, LED group luminous plaque includes substrate and the LED group that is installed on the substrate, it is characterized in that: LED group luminous plaque is the large tracts of land aluminum substrate.

2, LED street lamp as claimed in claim 1 is characterized in that: the back side of LED group is equipped with fin on the large tracts of land aluminum substrate.

3, LED street lamp as claimed in claim 1, it is characterized in that: the large tracts of land aluminum substrate is provided with the white oil coating.