CN102252239A

CN102252239A - Light-emitting diode (LED) street lamp

Info

Publication number: CN102252239A
Application number: CN2011102278323A
Authority: CN
Inventors: 吴建平
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-10
Filing date: 2011-08-10
Publication date: 2011-11-23

Abstract

The invention relates to a light-emitting diode (LED) street lamp, which comprises an optical cavity with two LED high-power integrated light sources, a power cavity which supplies electric energy to the LED high-power integrated light sources and a radiating device, wherein the optical cavity is formed by covering a lamp body upper cover on a lamp body lower cover; a sealing structure is arranged between the lamp body upper cover and the lamp body lower cover; the two LED high-power integrated light sources are symmetrically arranged on the left and right sides of the interior of the optical cavity by using a central axis relative to the vertical direction of the lamp body upper cover as a starting point and inclining lower edges of the LED high-power integrated light sources outwards by 5 to 45 DEG; and the two LED high-power integrated light sources form downward inner installation angles of 10 to 90 DEG. The LED street lamp has the advantages that: the two LED high-power integrated light sources which irradiate each other can be used for expanding a light irradiation range, so a dark area cannot be generated between two adjacent lamps, and illumination uniformity is improved; meanwhile, a reflector is arranged in the optical cavity, so the upward residual light of the light sources is completely reflected in a controllable range of irradiating points in the center of the lamp, and brightness can be improved.

Description

A kind of LED road lamp

Technical field

The present invention relates to a kind of LED street lamp.

Background technology

The light distribution structure of existing LED street lamp mainly contains following two kinds of forms:

(1) uses single spot light of LED, the light distribution structure of this spot light must pass through secondary light-distribution, on every spot light, control direction of light with a filter, light fixture can influence the lamp distribution structure Design, light source produces 10% ~ 15% light loss because of the illumination that makes light fixture with filter, add that filter is a plastic material, in hot environment, use the meeting aging yellowing for a long time, make the light loss of light fixture satisfy the step enhancing;

(2) use small-volume large-power integrated optical source, be equipped with the high-power integrated optical source of a slice in the optics cavity of this street lamp,, add concave and convex lenses for the luminous energy that light source is sent enlarges irradiated area, this light fixture does not have the light distribution structure design of science, can't reach the requirement of road lighting.

Summary of the invention

Technical problem to be solved by this invention provides a kind of LED street lamp with light distribution structure of science, and the range of exposures of this LED street lamp is bigger, and brightness is better, there is not blanking bar between each lamp, and thermal diffusivity is better, and self-cleaning ability is stronger, makes the longer service life of this LED street lamp.

Technical problem to be solved by this invention is achieved by the following technical programs:

A kind of LED road lamp, comprise the optics cavity that has the high-power integrated optical source of LED, optics cavity is covered by lamp body loam cake and lamp body lower cover and forms, be provided with hermetically-sealed construction between lamp body loam cake and the lamp body lower cover, also being included as the high-power integrated optical source of LED provides the power source cavity of electric energy, and heat abstractor, the high-power integrated optical source of described LED has two, be starting point with axis respectively with respect to lamp body loam cake vertical direction, outward-dipping 5 ~ 45 degree of its lower edge, be installed in the left and right sides in the optics cavity symmetrically, make two light sources form the downward interior established angle of 10 ~ 90 degree.

The angle of inclination of the high-power integrated optical source of described each LED is 30 degree.

The lamp body loam cake inwall at described optics cavity place is provided with reflective mirror.

Described heat abstractor is arranged on the lamp body at place, the high-power integrated optical source of LED bottom on the cover outer wall, and is positioned at the both sides of light fixture.

Described heat abstractor is the pectination arrangement by some heat radiation gear pieces and forms, and each dispels the heat has between the gear piece at interval, and penetrating up and down.

It is higher that described lamp body loam cake is the middle part, near the lower arc or the triangle in both sides of both sides heat radiation gear piece.

The present invention has following beneficial effect:

(1) the present invention is installed in the left and right sides in the light fixture optics cavity to two groups of high-power integrated optical sources of LED respectively symmetrically, and 5 ~ 45 degree that tilt, 10 ~ 90 degree established angles in forming, light-emitting area 90 ~ 170 degree, the high-power integrated optical source of the LED of two groups of correlation can enlarge the range of exposures of light, making does not have blanking bar fully between every lamp, improve uniformity of illuminance;

When (2) the high-power integrated optical source correlation of two groups of LED in the light fixture left and right sides of the present invention emitted beam, the surplus light that makes progress was reflected in the controlled range of light fixture center point of irradiation surplus light by the reflection of the reflector in the light fixture optics cavity fully, can improve brightness.

Description of drawings

Fig. 1 is an explosive view of the present invention;

Fig. 2 is a upward view of the present invention.

Fig. 3 is the profile of Fig. 1 and Fig. 2 optics cavity internal structure.

The specific embodiment

Below in conjunction with drawings and Examples the present invention is described in detail.

As shown in Figures 1 and 2, a kind of LED road lamp, comprise the optics cavity that has the high-power integrated optical source 1 of LED, optics cavity is covered by lamp body loam cake 2 and lamp body lower cover 3 and forms, optics cavity is sealed as hermetically-sealed construction with the second silica gel circle 9 between the first silica gel circle 7 between safety glass 8, lamp body loam cake 2 and the safety glass 8 and lamp body lower cover 3 and the safety glass 8 between lamp body loam cake 2 and the lamp body lower cover 3, also being included as the high-power integrated optical source 1 of LED provides the power source cavity 4 of electric energy, and heat abstractor 5.

Fig. 3 is the profile of optics cavity inner structure among Fig. 1 and Fig. 3, can better see the structure in the optics cavity, as shown in Figure 2, the high-power integrated optical source 1 of LED has two in the optics cavity, be starting point with axis respectively with respect to lamp body loam cake vertical direction, outward-dipping 30 degree of its lower edge are installed in the left and right sides in the optics cavity symmetrically, make two light sources form the downward interior established angle of 60 degree, light-emitting area 120 degree, the high-power integrated optical source 1 of the LED of two groups of correlation can enlarge the range of exposures of light, making does not have blanking bar fully between every lamp, improve uniformity of illuminance.

As shown in Figure 3, lamp body loam cake 2 inwalls at optics cavity place also are provided with reflective mirror 6, when high-power integrated optical source 1 correlation of the two groups of LED in the light fixture left and right sides emits beam, surplus light upwards is by the reflection of the reflector 6 in the light fixture optics cavity, surplus light is reflected in the controlled range of light fixture center point of irradiation fully, can improves brightness.

As Fig. 1 and shown in Figure 3, the heat abstractor 5 of LED road lamp of the present invention is arranged on the outer wall of the lamp body loam cake of locating the high-power integrated optical source of LED 1 bottom 2, and is positioned at the both sides of light fixture.Heat abstractor 5 is pectination by some heat radiation gear pieces and is spaced and forms, and each dispels the heat has between the gear piece at interval, and penetrating up and down.Because heat abstractor 5 is close to the light source bottom, each the heat radiation gear piece that adds heat abstractor all is independently and penetrating up and down passage of heat is arranged, the wind that all has the heat on air channel so each gear piece not stopped up and down between tooth and the tooth is taken away rapidly, make light fixture when work temperature drop low, prolong light fixture service life.

Because heat abstractor 5 of the present invention is for being the spaced heat radiation gear piece of pectination, each gear piece is penetrating about all being, does not block, and bases oneself upon even have birds droppings and rubbish also to be difficult on the gear piece of 2 millimeters thick.In addition, it is higher that lamp body loam cake 2 is the middle part, the lower arc in both sides near both sides heat radiation gear piece, dust foreign material, birds droppings and other rubbish thing drop after on the lamp body loam cake 2, can under the effect of rain drop erosion and wind-force, shift, therefore it is residual not have dust foreign material, birds droppings and other rubbish thing on the light fixture, and the structural design of advanced science can reduce the maintenance cost of light fixture.

The above embodiment has only expressed embodiments of the present invention, it describes comparatively concrete and detailed, but can not therefore be interpreted as restriction to claim of the present invention, for example the setting angle of two groups of high-power integrated optical sources of LED not necessarily is confined to 30 degree in the optics cavity, and the shape of lamp body loam cake can also be a triangle except arc.In every case adopt the technical scheme that form obtained that is equal to replacement or equivalent transformation, all should drop within protection scope of the present invention.

Claims

1. LED road lamp, comprise the optics cavity that has the high-power integrated optical source of LED (1), optics cavity is covered by lamp body loam cake (2) and lamp body lower cover (3) and forms, be provided with hermetically-sealed construction between lamp body loam cake and the lamp body lower cover, also being included as the high-power integrated optical source of LED provides the power source cavity (4) of electric energy, and heat abstractor (5), it is characterized in that: the high-power integrated optical source of described LED has two, be starting point with axis respectively with respect to lamp body loam cake vertical direction, outward-dipping 5 ~ 45 degree of its lower edge, be installed in the left and right sides in the optics cavity symmetrically, make two light sources form the downward interior established angle of 10 ~ 90 degree.

2. LED road lamp according to claim 1 is characterized in that: the high-power integrated optical source of described each LED is starting point with the axis with respect to lamp body loam cake vertical direction respectively, and the outward-dipping angle of its lower edge is 30 degree.

3. LED road lamp according to claim 1 and 2 is characterized in that: the lamp body loam cake inwall at described optics cavity place is provided with reflective mirror (6).

4. LED road lamp according to claim 1 is characterized in that: described heat abstractor is arranged on the lamp body at place, the high-power integrated optical source of LED bottom on the cover outer wall, and is positioned at the both sides of light fixture.

5. LED road lamp according to claim 4 is characterized in that: described heat abstractor is the pectination arrangement by some heat radiation gear pieces and forms, and each dispels the heat has between the gear piece at interval, and penetrating up and down.

6. LED road lamp according to claim 1 is characterized in that: it is higher that described lamp body loam cake is the middle part, near the lower arc or the triangle in both sides of both sides heat radiation gear piece.