CN101463988B

CN101463988B - LED light projecting lamp

Info

Publication number: CN101463988B
Application number: CN2009100364632A
Authority: CN
Inventors: 梁赖
Original assignee: 梁赖
Current assignee: Dongguan six subtraction six Optoelectronic Technology Co., Ltd.
Priority date: 2009-01-07
Filing date: 2009-01-07
Publication date: 2011-04-27
Anticipated expiration: 2029-01-07
Also published as: CN101463988A

Abstract

The invention relates to an LED flood light, comprising a strip-shaped radiating piece, a luminescence component fixed in the radiating piece and a lampshade sheathed at the periphery of the radiating piece, the luminescence component comprises an LED light and an aluminum base plate which is used to fix the LED light, a photospot is sheathed at the front end of every LED light, the radiating piece is provided with a longitudinal groove, the LED lights are flat stuck at the bottom part of the groove and are slantingly arranged at two edges of the groove. By renovating the structure of the LED flood light and by grouping three or more than three luminescence components which are slantingly arranged in the groove of the radiating piece, the LED flood light improves the utilization rate of light and saves electric energy, in addition, a plurality of luminescence components emit mutually overlapped and supplemented light, thus ensuring better uniformity of light.

Description

A kind of LED floodlight

Technical field

The present invention relates to a kind of lighting device, more precisely is a kind of LED floodlight.

Background technology

In illumination occasions such as existing various billboards, signboard, blackboard and building night scenes, all adopted a large amount of Projecting Lamps, along with the maturation of high-powered LED lamp technology, the LED lamp is subjected to people's favor day by day with characteristics such as its energy-saving and environmental protection and long-lives.The LED Projecting Lamp also is subjected to people day by day and payes attention to.In the existing LED Projecting Lamp structure, LED lamp general rule is linear array in the plane, and adopts the light transparent member of single beam angle, and there is following defective in the LED Projecting Lamp of this version:

1. light utilization efficiency is low.For light is evenly distributed, can only be away from photographed object.According to the principle that illumination and square distance are inversely proportional to, zoom out distance face to be illuminated illumination is obviously reduced, wasted electric energy indirectly;

2. lamp installation is not firm, and light departs from normal directive easily.Owing to reasons such as technologies, existing LED Projecting Lamp needs form illuminator by a plurality of lamps or lamp bar, and the break-in of losing efficacy easily of directive governor motion causes indivedual light fixtures to depart from normal directive;

3. the light uniformity is poor.Existing pyriform symmetry luminous intensity distribution, the light drop is bigger, cause face to be illuminated brightness to differ greatly, be that the light uniformity is poor, and the asymmetric luminous intensity distribution of reflective bell-type in the beam intensity ratio on both sides up and down below 1.5/1, do not reach reasonably about 2.5～3/1, can only remedy, cause light and waste of energy by zooming out distance;

4. inconvenience is installed and influences the photographed object outward appearance.Because existing LED Projecting Lamp volume is doted on greatly, both has been inconvenient to install, and is inconvenient again hidden, influenced the photographed object overall appearance;

5. the broken phenomenon of glass takes place easily.Because waterproof need adopt hard glass to come printing opacity, and glass causes the inefficacy and the personal injury of light fixture function often because of a variety of causes fragmentation.

Summary of the invention

Technical problem to be solved by this invention is the defective that overcomes prior art, and a kind of smooth good evenness, the rational LED floodlight of luminous intensity distribution are provided.

The present invention is achieved by the following technical solutions:

A kind of LED floodlight, the lampshade that comprises the strip radiating piece, is fixed in the luminescence component in the radiating piece and is placed in the radiating piece periphery, luminescence component is made up of the aluminium base of LED lamp and fixed L ED lamp, be with light collecting part spare at each LED lamp front end, have groove longitudinally in the described radiating piece, each LED lamp is smooth to be installed on groove two edges in bottom portion of groove and inclination.

As the improvement to such scheme, described luminescence component is to be one group more than three or three, and every group is provided with two edges that the LED lamp is positioned at bottom portion of groove and groove.

Further, periphery is provided with conduit longitudinally in radiating piece groove both sides, the waterproof adhesive tape that closely contacts with lampshade is installed in the conduit, be provided with waterproof pad and waterproof plug at the radiating piece two ends, waterproof pad, lampshade and waterproof adhesive tape will be installed the annular seal space of the groove formation water-stop of LED lamp.

As further improving, the radiating piece at annular seal space rear portion and lampshade are provided with and are beneficial to the through hole that the radiating piece heat radiation is quickened in circulation of air.

Further, described optically focused parts are different lens of beam angle or reflector, and the different symmetrical luminous intensity distribution of beam angle is mixed into a kind of asymmetric luminous intensity distribution.

In order to increase compatibility, at needs lamp installation on T8 type lamp socket or lamp panel the time, can be increased the lamp holder that is complementary with T8 type lamp socket at the radiating piece two ends, lamp holder two electrode pins are electrically connected with LED lamp utmost point pin.

Relative prior art, the present invention has following advantage:

1. light utilization efficiency height.Because light is asymmetric luminous intensity distribution, the distance of light fixture and photographed object can shorten to below 0.5 meter, significantly reduces than required 1.5～3 meters of existing light fixture, and electric energy has been saved in the light utilization efficiency raising;

2. fitting structure is solid and reliable, good integrity.Owing to be not subjected to process limitation, light fixture length can reach 3～4 meters even longer, and whole illuminator good integrity reduces the lamp deflection probability;

3. light good evenness.Owing to adopt three kinds of symmetrical luminous intensity distributions, form a kind of asymmetric luminous intensity distribution, and be linear array, both guaranteed that optical uniformity was good, and made light intensity become big and strengthen that face to be illuminated both sides beam intensity ratio up and down reached more than 2.5/1 along with distance, face to be illuminated brightness everywhere is more or less the same, the light good evenness;

4. install firmly, be easy to hidden.This LED Projecting Lamp volume is little, forms thin tube-like outward, and is fixing easily, and directive is not easy to change when blowing typhoon, and thin tube-like profile good concealment, gives the people a kind of illumination sensation that does not have light fixture;

5. there is not the broken problem of glass.Owing to adopt high-intensity PC as lampshade, do not have the broken problem of glass, and unique waterproof and dustproof structure also significantly reduce the water proof and dust proof inefficacy of light fixture;

6. can realize symmetry and two kinds of forms of asymmetric luminous intensity distribution.Because three faces luminous component of arranging is arranged, when with three faces is asymmetric luminous intensity distribution, during with a face is symmetrical luminous intensity distribution, help widening purposes like this, when as illuminations such as advertisement, signboard and blackboards, use asymmetric luminous intensity distribution, when being used for purposes such as building nightscape lighting, use symmetrical luminous intensity distribution, strengthen third dimension.

Description of drawings

Accompanying drawing 1 is an embodiment of the invention decomposing state structural representation;

Accompanying drawing 2 is a present embodiment cross-sectional structure schematic diagram;

Accompanying drawing 3 is present embodiment luminescence component distribution schematic diagram in the radiating piece groove;

Accompanying drawing 4 is positioned at edge, groove left side structural representation for the present embodiment luminescence component;

Accompanying drawing 5 is positioned at groove intermediate structure schematic diagram for the present embodiment luminescence component;

Accompanying drawing 6 is positioned at the groove right edge along structural representation for the present embodiment luminescence component;

Accompanying drawing 7 is that the asymmetric luminous intensity distribution of present embodiment mixes the generation schematic diagram.

The specific embodiment

Understanding for the ease of those skilled in the art describes in further detail the present invention below in conjunction with the drawings and specific embodiments.

Shown in accompanying drawing 1～7, the disclosed LED floodlight of present embodiment is a kind of illuminating Projecting Lamps such as advertisement, signboard, blackboard and building that are suitable for, and has that light utilization efficiency height, fitting structure are solid and reliable, good integrity, light good evenness, a luminous intensity distribution rational LED floodlight flexibly.

This light fixture comprises the radiating piece 1 of strip, is with lampshade 3 outside radiating piece 1, then is disposed with waterproof pad 14 and waterproof plug 15 at radiating piece 1 both ends, has groove 11 longitudinally on radiating piece 1, and back luminescence component 2 is installed in the groove 11.Wherein, radiating piece 1 is a heat conductivility good whole alumiaum article, and is vertically arranged with fin and the conduit that increases area of dissipation.

Luminescence component 2 is made up of the aluminium base 22 of LED lamp 21 and fixed L ED lamp 21, is with light collecting part spare 4 at each LED lamp 21 front end.Optically focused parts 4 can be lens or reflector, as required, different lens of beam angle or reflector can be installed on different LED lamps 21, and the three kind symmetrical beams different by beam angle on three planes are mixed into a kind of asymmetric luminous intensity distribution, to satisfy the needs of the right title luminous intensity distribution of whole light fixture.

In order to make luminous intensity distribution more rationally and be convenient to luminous intensity distribution, luminescence component 2 is being one group more than three or three, be evenly arranged in the groove 11, and the appearance and size of aluminium base 22 is different in every group, be distributed in edge 221, left side, centre 222 and right edge along 223, and LED lamp 21 positions deflections groove 11 centers in every group, make in the whole light fixture not only oriented directly over the direction irradiation, but also have to the left, the LED lamp 21 of right side irradiation.The light fixture under this version and the distance of photographed object can shorten to below 0.5 meter, significantly reduce than required 1.5～3 meters of existing light fixture, light utilization efficiency improves, and has saved electric energy, owing to form a kind of asymmetric luminous intensity distribution, and be linear array, both guaranteed that optical uniformity was good, and made light intensity become big and strengthen that face to be illuminated both sides beam intensity ratio up and down reached more than 2.5/1 along with distance, face to be illuminated brightness everywhere is more or less the same, the light good evenness.

In the time must being installed in T8 tube stand or the lamp panel as required, increasing lamp holder 5 is the lamp holder that is complementary with existing T8 model lamp socket, and two electrode pins of lamp holder 5 are connected with LED lamp 21 electrodes.This version is convenient to whole light fixture is installed as T8 type fluorescent tube, expands its installation approach and position, has the asymmetric luminous intensity distribution of directive property that the T8 fluorescent tube does not have simultaneously.

Whole lamp installation is firm, is easy to hidden.This LED Projecting Lamp volume is little, forms thin tube-like outward, and is fixing easily, and directive is not easy to change when blowing typhoon, and thin tube-like profile good concealment, gives the people a kind of illumination sensation that does not have light fixture.

In order to strengthen its waterproof effect, be provided with conduit 12 longitudinally in radiating piece 1 groove 11 both sides peripheries, the waterproof adhesive tape 13 that closely contacts with lampshade 3 is installed in the conduit 12, and the waterproof pad 14 at radiating piece 1 two ends, lampshade 3 and waterproof adhesive tape 13 will be installed the annular seal space of the groove 11 formation water-stops of LED lamp 21.In order to be beneficial to radiating piece 1 heat radiation, the radiating piece fin part at annular seal space rear portion and lampshade 3 are provided with and are beneficial to the through hole 16 that the radiating piece heat radiation is quickened in circulation of air.In order to eliminate lampshade 3 easy broken drawbacks in the prior art, the lampshade 3 that adopts in this programme is the high-strength PC material, do not have the broken problem of glass, and unique waterproof and dustproof structure also significantly reduces the water proof and dust proof inefficacy of light fixture.

From top embodiment as can be seen, no matter the present invention is from technical scheme or technique effect, all be those skilled in the art without the scheme that creative work can't draw, have outstanding substantive distinguishing features and obvious improvement, should meet the invention patent mandate requirement.What need further specify is, more than is described as preferred embodiment of the present invention, and under the prerequisite that does not depart from the present invention's design, any conspicuous modification to the present invention carries out all should be included within the technical conceive of the present invention.

Claims

1. LED floodlight, comprise strip radiating piece (1), the lampshade (3) that is fixed in the luminescence component (2) in the radiating piece and is placed in radiating piece (1) periphery, luminescence component (2) is made up of the aluminium base (22) of LED lamp (21) and fixed L ED lamp (21), be with light collecting part spare (4) at each LED lamp (21) front end, it is characterized in that: have groove (11) longitudinally in the described radiating piece, each LED lamp is smooth to be loaded on groove two edges in described groove (11) bottom and inclination, luminescence component (2) with more than three or three be one group evenly distributed in groove (11), the appearance and size of each group aluminium base is different, be distributed in edge (221), groove left side respectively, centre (222), and right edge is along (223), make every group of luminescence component have three direction of illuminations simultaneously, and the center of LED lamp (21) position deflection groove (11), the optically focused parts of the LED lamp of formed three direction of illuminations are different lens of beam angle or reflector, and finally generate a kind of asymmetric luminous intensity distribution by three kinds of symmetrical luminous intensity distributions.

2. LED floodlight according to claim 1, it is characterized in that: be provided with conduit (12) longitudinally in radiating piece groove both sides periphery, the waterproof adhesive tape (13) that closely contacts with lampshade is installed in the conduit, be provided with waterproof pad (14) and waterproof plug (15) at the radiating piece two ends, waterproof pad, lampshade and waterproof adhesive tape will be installed the annular seal space of the groove formation water-stop of LED lamp.

3. LED floodlight according to claim 2 is characterized in that: the radiating piece at annular seal space rear portion and lampshade are provided with and are beneficial to the through hole (16) that the radiating piece heat radiation is quickened in circulation of air.