CN101504116B

CN101504116B - High-brightness LED lamp

Info

Publication number: CN101504116B
Application number: CN200910096717XA
Authority: CN
Inventors: 黄坚忠
Original assignee: NINGBO FAREAST LIGHTING CO Ltd
Current assignee: NINGBO FAREAST LIGHTING CO Ltd
Priority date: 2009-03-13
Filing date: 2009-03-13
Publication date: 2010-08-25
Anticipated expiration: 2029-03-13
Also published as: CN101504116A

Abstract

The invention discloses a high-brightness LED lamp, which comprises a shell (1), a reflector panel (2) in the shell (1), a luminescent circuit board (3) and a plurality of LED light sources (4) which are distributed into a plurality of rows, wherein the plurality of the LED light sources (4) comprise a first row of LED light sources (41) positioned in the center of the reflector panel (2) and side LED light sources (42) on both sides; a mounting seat (5) is arranged below the side LED light sources (42) and is provided with a mounting surface (51) of which the outside is inclined upward; the reflector panel (2) is provided with a matching inclined plane (21), and one side of the surface of the reflector panel (2) corresponding to each LED light source (4) of the side LED light sources is provided with a side rib (22) protruding to the center of the reflector panel (2); and the side ribs (22) have same size and are mutual parallel. Compared with the prior art, the high-brightness LED light has the plurality of rows of inclined distributed LED light sources to ensure that the side LED light sources can be concentrated at the center, so that the side LED light sources work with the central first row of the LED light sources to provide higher illumination brightness.

Description

A kind of high-brightness LED lamp

Technical field

The present invention relates to a kind of LED lamp, relate in particular to a kind of high-brightness LED lamp with better illuminating effect.

Background technology

Transitional street lamps generally adopts tengsten lamp or fluorescent lamp as light source, though that these light sources have is cheap, the advantage of high brightness, but they all need the high voltage source power supply, in luminescence process, most electric energy is converted into heat energy and causes energy waste, power consumption is higher relatively, and luminous efficiency is lower.And at present, led light source because of have little power consumption, the high and low heating of luminous efficiency, long service life, advantage such as energy-conservation is widely used, if and a LED lamp only comprises single led light source, its luminous quantity is very limited, and illuminating effect does not reach requirement, thereby, be used for normal lighting, in particular as in the higher street lamp of brightness requirement, then need with various LED intensive be distributed on together and integrated use generally is arranged to matrix form.

For strengthening irradiation brightness, generally need a reflector be set in a plurality of led light source bottom periphery, be that the Chinese patent application " LED street lamp concentration inverse light panel " of 200810054718.3 (publication number is CN101251237A) discloses a kind of reflector as application number.The body of this reflector is one to have the plane of a plurality of light source installing holes, with the led light source that is the matrix queue distribution that is adapted to distribute at grade, and, each light source installing hole periphery is a bowl-shape snoot, so that each led light source energy optically focused, also promptly, a bowl-shape snoot cooperates a led light source.But in actual process, compression moulding to go out a moulding that has a plurality of curve forms, it is higher that defect rate appears in product, makes that the production cost is higher; And, a plurality of led light sources are arranged at grade, the focus that light compiled that each led light source produces is exactly the focal point of each bowl-shape snoot on the reflector, each focal point also still is the matrix queue distribution, and like this, the light that a plurality of led light source produced disperses very much, do not pool together, make that whole LED lamp spotlight effect is not high, reduce luminous efficiency, illuminating effect is not ideal enough.Therefore, the LED lamp that this luminous plaque is installed needs further improvement.

Summary of the invention

Technical problem to be solved by this invention is that a kind of high-brightness LED lamp that the light that a plurality of led light sources produce can be pooled together is provided at above-mentioned prior art present situation, its spotlight effect is good, and make illuminating effect be improved significantly, and the luminous plaque in this high-brightness LED lamp is easy to make and product percent of pass is higher.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: this high-brightness LED lamp, comprise lamp housing, be arranged on reflector, the circuit board in the lamp housing and be arranged on a plurality of led light sources that are many row's distributions on the circuit board, wherein, described lamp housing comprises upper shell and lower house, each led light source top is passed described reflector and is exposed on the reflector, it is characterized in that: described a plurality of led light sources comprise the first row's led light source that is positioned at reflector central authorities and are symmetrically distributed at least one row's side led light source of first row's led light source both sides; The below of all sides led light source all is provided with mount pad, and this mount pad has the acclivitous installed surface in the outside, and the circuit board of side led light source bottom just is fixed on the installed surface of corresponding mount pad; And, described reflector has and the suitable inclined plane of the installed surface of described mount pad, this reflector surface side of each led light source in the respective side led light source respectively has a side fin that protrudes to reflector central authorities, and each side fin size unanimity and direction are parallel each other.

Also promptly, first row's led light source of central authorities is low, and the side led light source that is positioned at its both sides is obliquely installed, and light can be compiled to central authorities, and reflector also is central low, the acclivitous shape in both sides, reflector can be pressed close to the mount pad surface, and fixing with lower house reliably.

For making led light source that side fin on the reflector can be positioned at the one side with light reflection angle preferably, the one side of each side fin is vertical with the inclined plane of reflector on the described reflector, angle between another side and the reflector top incline is to be good in 110 °～140 ° scopes, and best angle is 130 °.

Described reflector surface can be respectively arranged with a central fin that raises up in a side of each led light source in corresponding first row's led light source, each central fin size is consistent and parallel towards each other, makes first row's led light source of central authorities have irradiating angle preferably by each central fin.

As further improvement, the one side of each central fin can with the reflector bottom vertical, and the angular range between the another side of each central fin and the reflector bottom is between 140 °～160 °, best angle is 150 °.

Consider that the LED lamp body is long-pending limited, described first row's led light source both sides can respectively be provided with two row's side led light sources, described mount pad separately forms the mount pad under the side led light source of two correspondences in both sides below first row's led light source, also be, described mount pad respectively is provided with two accordingly, each mount pad is stepped, even also the outside one parallelism is high near one row of central authorities in the side led light source, and, described reflector also has the stairstepping that adapts with described mount pad, increases progressively highly layer by layer; So design, the light that makes the side led light source be sent can not block mutually, and can compile to central authorities simultaneously.

For the led light source that makes side has light-ray condensing angle preferably, the angle of inclination of the installed surface that described mount pad tilts with in 40 °～70 ° scopes for good, best angle is 55 ° or 60 °, corresponding, the angle of described reflector top incline also adapts with it.

For the led light source that intensity distributes, the heat of its generation is more, if heat can not get in time distributing, the operating ambient temperature of its led light source and circuit board will increase, and makes its performance degradation and wears out; Therefore, for led light source and circuit board can be dispelled the heat as soon as possible, described lower house entire body can adopt heat-conducting metal to make, the inner surface of this lower house has heat conduction and connects platform, the outer surface of this lower house has a plurality of parallel thermal troughs, and described mount pad also adopts thermal conductive metallic material, its bottom surface level, this mount pad just are directly installed on heat conduction and connect on the platform; Just, the direct and hot conduction of lower house generation of the circuit board of first central row's led light source below, the circuit board of side led light source conducts with the lower house generation is hot indirectly by this mount pad.

For making lower house have better heat radiating effect, the orientation of described many row's led light sources can be parallel each other with the distribution arrangement of thermal trough on the described lower house outer surface.

The thermal conductive metallic material of above-mentioned lower house and mount pad can adopt existing various material, such as aluminium alloy.

Compared with prior art, the invention has the advantages that: the installed surface that is designed to have inclination by mount pad side led light source bottom, and cooperate the reflector that adapts with it and be provided with a plurality of side fins, make the side led light source light can be pooled to the central authorities of reflector; And, led light source is designed to the form that central authorities are low, sloped sides increases layer by layer from the existing mode that distributes with matrix formation form, the led light source of this many row's tilt distribution, make the side led light source light source can be focused on central authorities, first row's led light source with central authorities provides higher brightness of illumination; Moreover, the heat that LED lamp of the present invention can in time produce led light source conducts, it is provided with a plurality of thermal troughs with lower house, increase heat-conducting area, improve heat transfer efficiency, and the lower house of particular design itself becomes a thermal component, need not to increase the heat radiation that parts can be realized LED, thereby the heat that can expeditiously led light source be produced conducts.

Description of drawings

Fig. 1 is the structural representation (having omitted the transparent part in the loam cake) of the embodiment of the invention;

Fig. 2 is the structural representation (from the lower cover direction) of the embodiment of the invention;

Fig. 3 is the three-dimensional exploded view of the embodiment of the invention;

Fig. 4 is the side view of mount pad in the embodiment of the invention;

Fig. 5 is the structural representation of reflector in the embodiment of the invention;

Fig. 6 is the front view of Fig. 5.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 6, this high-brightness LED lamp comprises lamp housing 1, is arranged on reflector 2, circuit board 3 and a plurality of led light source in the lamp housing 1;

Wherein, described lamp housing 1 comprises upper shell 11 and lower house 12, upper shell 11 central authorities have transparent part 11a so that the led light source printing opacity in the lamp housing 1, described lower house 12 entire bodies adopt this heat-conducting metal of aluminium alloy to make, the inner surface of this lower house 12 has heat conduction and connects platform 12a, and the outer surface of this lower house 12 has a plurality of parallel thermal trough 12b;

For guaranteeing brightness of illumination, described a plurality of led light source is many rows mode arranged side by side and is arranged on the circuit board 3, comprise the first row's led light source 41 that is positioned at lower house 12 central authorities and be symmetrically distributed in first and arrange each two row's side led light source 42 of led light source 41 both sides, each led light source top is passed the aperture on the described reflector 2 and is exposed on the reflector 2, and the distribution arrangement that the thermal trough 12b on direction and lower house 12 outer surfaces is set of arranging led light source parallel each other more;

The below that is positioned at the side led light source 42 of first row's led light source, 41 both sides respectively is provided with the mount pad 5 of an aluminum alloy material, each mount pad 5 structure is identical, stepped, increase progressively highly layer by layer, and the bottom surface level, each mount pad 5 just is directly installed on heat conduction and connects on the platform 12a, and, each mount pad 5 is vertically arranged with the installed surface 51 that two exclusive side direction tilt along ladder, the angle of inclination γ of each installed surface 51 (being the angle between installed surface 51 and mount pad 5 bottom surfaces) is 55 °, referring to Fig. 4;

For making circuit board 3 be convenient to processing and installation, this circuit board 3 is fixedly mounted on respectively on the installed surface 51 of corresponding mount pad 5 with the form of a plurality of strips;

Simultaneously, described reflector 2 has the stairstepping that adapts with described mount pad 5, and have each installed surface 51 corresponding inclined plane 21 with mount pad 5, like this, it is low that the shape of reflector 2 just is central authorities, the shape that both sides are stepped progressively high and matching with mount pad 5, thus reflector 2 can be attached on the mount pad 5 that circuit board 3 is installed preferably;

And, one side of each led light source of these reflector 2 surfaces in corresponding first row's led light source 41 is respectively arranged with a central fin 23 that raises up, each central fin 23 size is consistent and parallel towards each other, the one side 23a of each central fin 23 and reflector 2 bottom vertical, and the angle between the another side 23b of each central fin 23 and reflector 2 bottoms is 150 °, referring to Fig. 5 and Fig. 6;

These reflector 2 surfaces side of each led light source in respective side led light source 42 respectively has a side fin 21 that protrudes to reflector 2 central authorities, each side fin 21 big or small unanimity and direction are parallel each other, the one side 21a of each side fin 21 is vertical with the inclined plane 21 of reflector 2, promptly, angle [alpha] between the one side 21a of each side fin 21 and reflector 2 inclined planes 21 is 90 °, and the angle beta between the another side 21b of each side fin 21 and reflector 2 top incline 21 is 130 °, referring to Fig. 5 and Fig. 6.

Claims

1. high-brightness LED lamp, comprise lamp housing (1), be arranged on reflector (2), the circuit board (3) in the lamp housing (1) and be arranged on a plurality of led light sources that are many row's distributions on the circuit board (3), wherein, described lamp housing (1) comprises upper shell (11) and lower house (12), each led light source top is passed described reflector (2) and is exposed on the reflector (2), it is characterized in that:

Described a plurality of led light source comprises the first row's led light source (41) that is positioned at reflector (2) central authorities and is symmetrically distributed at least one row's side led light source (42) of first row's led light source (41) both sides;

The below of all sides led light source (42) all is provided with mount pad (5), this mount pad (5) has the outside acclivitous installed surface (51), and the circuit board (3) of side led light source (42) bottom just is fixed on the installed surface (51) of corresponding mount pad (5);

And, described reflector (2) has and the suitable inclined plane (21) of the installed surface (51) of described mount pad (5), this reflector (2) surface side of each led light source in respective side led light source (42) respectively has a side fin (22) that protrudes to reflector (2) central authorities, and each big or small unanimity of side fin (22) and direction are parallel each other.

2. high-brightness LED lamp according to claim 1, it is characterized in that: the one side (22a) of last each the side fin (22) of described reflector (2) is vertical with the inclined plane (21) of reflector (2), and angle (β) scope between another side (22b) and reflector (2) top incline (21) is between 110 °～140 °.

3. high-brightness LED lamp according to claim 1, it is characterized in that: a side of each led light source of described reflector (2) surface in corresponding first row's led light source (41) is respectively arranged with a central fin (23) that raises up, and each central fin (23) size is consistent and parallel towards each other.

4. high-brightness LED lamp according to claim 3, it is characterized in that: the one side (23a) of each central fin (23) and reflector (2) bottom vertical, and the angular range between the another side (23b) of each central fin (23) and reflector (2) bottom is between 140 °～160 °.

5. high-brightness LED lamp according to claim 1, it is characterized in that: described first row's led light source (41) both sides respectively are provided with two row's side led light sources (42), described mount pad (5) respectively is provided with two accordingly, each mount pad (5) is stepped, and described reflector (2) also has the stairstepping that adapts with described mount pad (5).

6. high-brightness LED lamp according to claim 5 is characterized in that: the scope at the angle of inclination (γ) of the installed surface (51) that described mount pad (5) tilts is between 40 °～70 °.

7. according to the described high-brightness LED lamp of arbitrary claim in the claim 1 to 6, it is characterized in that: described lower house (12) entire body adopts heat-conducting metal to make, the inner surface of this lower house (12) has heat conduction and connects platform (12a), the outer surface of this lower house (12) has a plurality of parallel thermal troughs (12b), and, described mount pad (5) also adopts thermal conductive metallic material, its bottom surface level, and this mount pad (5) just is directly installed on heat conduction and connects on the platform (12a).

8. high-brightness LED lamp according to claim 7 is characterized in that: the distribution arrangement of the thermal trough (12b) on the orientation of described many row's led light sources and described lower house (12) outer surface is parallel each other.