CN201507851U

CN201507851U - LED street lamp

Info

Publication number: CN201507851U
Application number: CN2009202163879U
Authority: CN
Inventors: 吴锦源
Original assignee: LTT SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: LTT SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2009-09-11
Filing date: 2009-09-11
Publication date: 2010-06-16
Anticipated expiration: 2019-09-11

Abstract

The utility model relates to an LED street lamp comprising a luminescent module, a heat conducting seat, a heat radiation lamp shade, a plurality of heat conducting pillars and a continuously bended heat radiation panel, wherein the luminescent module comprises a baseplate and a plurality of LEDs connected with the baseplate, the heat conducting seat is borne by and fixedly connected with the baseplate, the heat radiation lamp shade covers the heat conducting seat, a first cavity and a second cavity are formed between the heat radiation lamp shade and the heat conducting seat, a plurality of ventilation slots communicated with the first cavity are formed on the heat radiation lamp shade, the heat conducting pillars are arranged in the second cavity with the two ends being respectively in thermo-contact with the heat conducting seat and the heat radiation lamp shade, and the continuously bended heat radiation panel is arranged in the first cavity with the bended part being in thermo-contact with the heat conducting seat. Therefore, the high-temperature heat generated by the LEDs can be radiated rapidly, so as to improve both the heat radiating efficiency and the lighting efficiency of the street lamp.

Description

Light emitting diode road lamp

Technical field

The utility model relates to a kind of lighting device, relates in particular to a kind of light emitting diode road lamp that is applied to outdoor lighting.

Background technology

The structure of known street lamp is the bending external part winding hollow lamp housing of upright lamp stand, and hollow lamp housing inside is provided with lighting source, and sees through the transparent lamp shade of lamp housing bottom, so that the night illumination of road and context to be provided.Known street lamp requires high brightness, so use high power, large-sized lighting source mostly, as illuminators such as incandescent lamp bulb, mercury vapor lamps, but illumination efficiency is relatively poor, make the electric energy consume serious, this energy short of money day by day and precious in, the choosing in real non-a period of time, and the heat that is produced when high power, the running of large-sized lighting source, be difficult to dispel the heat by housing, cause the too high or lighting source of the temperature of housing to burn, need frequent maintain and replace, waste of manpower, material resources and time.

Street lamp is existing now uses LED light lamp to be lighting source, light emitting diode has low power consumption, high brightness of illumination, advantages such as the life-span is long, can improve illumination efficiency, and saving electric power, the a plurality of light emitting diodes of this lighting source arranged on circuit substrate, yet light emitting diode produces the high-temperature heat can cause the lamp circuit substrate overheated, street lamp is arranged at the open air again, in sealing, waterproof, the requirement of dustproof aspect, all than general interior illuminator height, then the high-temperature heat of light emitting diode generation can only dispel the heat by lamp housing and inner space thereof, so that radiating efficiency is poor, have a strong impact on the illumination usefulness of light emitting diode, reduce service life.

Summary of the invention

The purpose of this utility model is to provide a kind of light emitting diode road lamp, can lead fast and distribute the high-temperature heat that optical diode produces, with radiating efficiency and the illumination usefulness that improves street lamp.

To achieve the above object, the utility model provides a kind of light emitting diode road lamp, comprises a light emitting module, a heat-conducting seat, a heat radiation lampshade, plural heating column, reaches a heat sink that bends continuously; This light emitting module comprises a substrate and is connected in the plural light emitting diode of this substrate; This heat-conducting seat is affixed for this base plate carrying; This heat radiation lampshade this heat-conducting seat of cover cap and and this heat-conducting seat between form one first chamber and one second chamber, this light emitting module is located in this first chamber, this heat radiation lampshade offers the plural air vent that communicates with this first chamber; This plural number heating column is located in this second chamber and the two ends of this heating column difference this heat-conducting seat of thermo-contact and this heat radiation lampshade; The heat sink of bending is located in this first chamber and attaches this heat-conducting seat continuously.

Effect of the present utility model is, the high-temperature heat that produces when the plural heating column in second chamber operates light emitting module with heat exchange pattern conducts to the heat radiation lampshade, extraneous cold air can enter the heat of taking away in first chamber on the heat sink that accumulates in continuous bending via plural air vent, the high-temperature heat that produces when in the mode of thermal convection current light emitting module being operated is distributed to the external world, can lead the high-temperature heat that produces when distributing the optical module running whereby fast, and then the illumination usefulness and the service life of lifting street lamp, reduce maintenance manpower and time cost, possess value on the industry.

Description of drawings

The 1st figure is three-dimensional combination of the present utility model and part assembly perspective diagram;

The 2nd figure is one of perspective exploded view of the utility model part assembly;

The 3rd figure be the utility model part assembly perspective exploded view two;

The 4th figure is the solid combination schematic diagram at another visual angle of the utility model;

The 5th figure is a side-looking generalized section of the present utility model;

The 6th figure is the local enlarged diagram of the 5th figure;

The 7th figure is that of the present utility model another implemented illustration.

Description of reference numerals:

Light emitting module 10 substrates 11

Light emitting diode 12 heat-conducting seats 20

Coaming plate 21 heat radiation lampshades 30

Lower cover 31 loopholes 311

Air vent 312 loam cakes 32

First chamber, 33 second chambers 34

Heating column 40 is the heat sink 50 of bending continuously

Printing opacity guard shield 60 frameworks 61

Transparent panel 62 lamp stand assemblies 70

Load bearing seat 71 support bars 72

The specific embodiment

Relevant detailed description of the present utility model and technology contents, cooperation illustrates as follows, however appended diagram only provides reference and explanation usefulness, is not to be used for the utility model is limited.

The utility model relates to a kind of light emitting diode road lamp, please refer to shown in the 1st to 4 figure, be respectively one of perspective exploded view of three-dimensional combination of the present utility model and part assembly perspective diagram, the utility model part assembly, the utility model part assembly perspective exploded view two, and the solid combination schematic diagram at another visual angle of the utility model, this light emitting diode road lamp comprises a light emitting module 10, a heat-conducting seat 20, a heat radiation lampshade 30, plural heating column 40, one heat sink 50, a printing opacity guard shield 60, and the lamp stand assembly 70 of bending continuously.

This light emitting module 10 comprises a substrate 11 and plural light emitting diode 12, this substrate 11 is a rectangular circuit board, but be not shaped as restriction with this, the one side of this substrate 11 is printed with the conducting wire, another side then attaches one deck insulation material, this plural number light emitting diode 12 is connected in this substrate 11, and electrically be arranged on the conducting wire independently of one another, if one of them light emitting diode 12 damages, also can not influence other light emitting diode 12 runnings, this plural number light emitting diode 12 is arranged on this substrate 11, large-area illumination zone can be provided and have enough intensities of illumination.

These heat-conducting seat 20 rectangular shapes, but be not shaped as restriction with this, this heat-conducting seat 20 is made by the material of high heat conductivity, (heat conductivity is defined as: between the relative two sides of 1 cm cubes body to be the good material of heat conductivity as metal, suppose when 1 ℃ temperature difference is arranged, in 1 second, move to the heat of low temperature face) by high temperature face, but be not restriction with this material, and with the thickness thinning to shorten thermally conductive pathways, but still have enough structural strengths, these light emitting module 10 carryings are fixed in the middle position on this heat-conducting seat 20, illustrate further, this substrate 11 is attached at the bottom surface middle position of this heat-conducting seat 20 with the one side of insulation material, the high-temperature heat that this plural number light emitting diode 12 produces can come on a large scale to be passed to this heat-conducting seat 20 via this substrate 11, more can be coated with heat-conducting mediums such as heat-conducting cream or heat-conducting glue between the bottom surface of this substrate 11 and this heat-conducting seat 20 again, to strengthen heat conduction efficiency.

This heat radiation lampshade 30 is combined by a lower cover 31 and a loam cake 32, this lower cover 31 and this loam cake 32 are all made by the material of high heat conductivity, and with the thickness thinning to shorten thermally conductive pathways, but still have enough structural strengths, be formed with accommodation space between this lower cover 31 and this loam cake 32 to hold this heat-conducting seat 20, this heat-conducting seat 20 of lampshade 30 cover caps promptly should dispel the heat, illustrate further, the outer peripheral edges projection of this heat-conducting seat 20 forms a coaming plate 21 of setting, this lower cover 31 is connected in the bottom of this coaming plate 21 in the mode of being spirally connected, group is unloaded conveniently, then form one first chamber 33 between this lower cover 31 and this heat-conducting seat 20, so this light emitting module 10 just is located in this first chamber 33, this loam cake 32 is connected in the top of this coaming plate 21 in the mode of being spirally connected, group is unloaded conveniently, then forms one second chamber 34 between this loam cake 32 and this heat-conducting seat 20.

This plural number heating column 40 is located in this second chamber 34, this heating column 40 is elongate cylindrical shape, but do not exceed with this shape, its material by high heat conductivity is made, this heating column 40 is with two ends thermo-contact and be fixed in this heat-conducting seat 20 and this loam cake 32 respectively, affixed mode can be welding, gluing, or locking mode, and make maintenance more convenient in the locking mode, the two ends of this heating column 40 scribble heat-conducting medium with the contact-making surface of this heat-conducting seat 20 and this loam cake 32 respectively, pass usefulness to add heat-flash, 40 pairs of this plural number heating columns should substrate 11 the position and be arranged at and be different from these substrate 11 1 sides on this heat-conducting seat 20, with the high-temperature heat that should plural number light emitting diode 12 produces via this substrate 11, this heat-conducting seat 20, this plural number heating column 40 and conduct to this loam cake 32 fast.

The heat sink 50 of bending is located in this first chamber 33 continuously, it is tabular that the heat sink 50 that should bend continuously is wave, but do not exceed with this shape, its material by high heat conductivity is made, continuously heat sink 50 of bending is with each bending place thermo-contact and be fixed in the bottom surface of this heat-conducting seat 20, affixed mode can be welding, gluing or locking mode, and make maintenance more convenient in the locking mode, continuously each bending place of the heat sink 50 of bending scribbles heat-conducting medium with the contact-making surface of this heat-conducting seat 20 respectively, passes usefulness to add heat-flash.

31 pairs of this lower covers should offer a loophole 311 that communicates with this first chamber 33 in light emitting module 10 positions, this printing opacity guard shield 60 comprises a framework 61 and is embedded at a transparent panel 62 in this framework 61, this framework 61 is connected in these heat-conducting seat 20 bottom surfaces and centers on this light emitting module 10 in the locking mode, and these framework 61 build-ins are in this loophole 311, this transparent panel 62 is made for light-transmitting materials, can be plastics or glass, but be not restriction with these a little materials, then this printing opacity guard shield 60 can coat this light emitting module 10, make extraneous dirty, aqueous vapor can not influence this light emitting module 10, reaches sealing.

This lower cover 31 more offers the plural air vent 312 that communicates with this first chamber 33, this air vent 312 is elongated ellipticity, but be not shaped as restriction with this, this plural number air vent 312 for to should Curved Continuous heat sink 50 positions of folding be provided with, can enter in this first chamber 33 and brush this heat sink 50 of bending continuously for cool ambient air.

This lamp stand assembly 70 comprises a load bearing seat 71 and a support bar 72, this load bearing seat 71 is for hollow and be fixed in this loam cake 32, this loam cake 32 also offers hole so that this second chamber 34 is communicated with the inner space of this load bearing seat 71, this heat-conducting seat 20 offers hole so that this first chamber 33 is communicated with this second chamber 34, the bending of this support bar 72 1 ends and this load bearing seat 71 of cross-under, this support bar 72 have that cable passage passes this support bar 72, this load bearing seat 71, this second chamber 34, this first chamber 33 with current supply cable and energising is connected to this plural number light emitting diode 12.

Please refer to the 5th, shown in 6 figure, be respectively side-looking generalized section of the present utility model, the local enlarged diagram of the 5th figure, the thickness of this heat-conducting seat 20 and this heat radiation lampshade 30 all thinning to shorten thermally conductive pathways, these plural number light emitting diode 12 runnings are luminous, light exposes to shady place via this transparent panel 62, this plural number light emitting diode 12 produces the heat of high-temperature, conduct to this substrate 11 separately, this substrate 11 conducts to heat on a large scale this heat-conducting seat 20 again, in this first chamber 33, heat is that the mode with thermal convection current is distributed to the external world, a nearlyer step explanation, cool ambient air enters in this first chamber 33 via this air vent 312 and brushes this heat sink 50 of bending continuously, take away rapidly and accumulate in this heat of the heat sink 50 of bending continuously, in this second chamber 34, heat is to be distributed to the external world in heat conducting mode, a nearlyer step explanation, this heat-conducting seat 20 is corresponding to the part of these light emitting module 10 positions, heat is conducted to this loam cake 32 fast via this plural number heating column 40, the outside of this loam cake 32 contacts cold air on a large scale, take away the heat that accumulates in this loam cake 32 rapidly by cold air, by thermal convection current and heat conducting principle, the high-temperature heat that should the plural number light emitting diode produces during 12 runnings can be distributed to the external world fast, not make this street lamp fragile and increase illumination usefulness.

Please refer to shown in the 7th figure, for of the present utility model another implemented illustration, this plural number heating column 40 is the elongated rectangular shape column that stretches across, the end face of this heating column 40 and bottom surface be this heat-conducting seat 20 of thermo-contact and this heat radiation lampshade 30 respectively, 40 pairs of this plural number heating columns should substrate 11 the position and be arranged at and be different from these substrate 11 1 sides on this heat-conducting seat 20, with should the plural number light emitting diode the 12 high-temperature heats that produce via this substrate 11, this heat-conducting seat 20, this plural number heating column 40 and conduct to this loam cake 32 fast, the outside of this loam cake 32 contacts cold air on a large scale, takes away the heat that accumulates in this loam cake 32 rapidly by cold air.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art various corresponding changes and distortion when developing according to the utility model, but these corresponding changes and distortion all should belong to the appended protection domain of applying for a patent of the utility model.

Claims

1. a light emitting diode road lamp is characterized in that, comprising:

One light emitting module comprises a substrate and is connected in the plural light emitting diode of this substrate;

One heat-conducting seat, affixed for this base plate carrying;

One heat radiation lampshade, this heat-conducting seat of cover cap and and this heat-conducting seat between form one first chamber and one second chamber, this light emitting module is located in this first chamber, this heat radiation lampshade offers the plural air vent that communicates with this first chamber;

The plural number heating column is located in this second chamber and the two ends of this heating column difference this heat-conducting seat of thermo-contact and this heat radiation lampshade; And

The one continuous heat sink of bending is located in this first chamber and attaches this heat-conducting seat.

2. light emitting diode road lamp as claimed in claim 1 is characterized in that, this heat radiation lampshade comprise a lower cover and with a loam cake of the mutual winding of this lower cover.

3. light emitting diode road lamp as claimed in claim 2 is characterized in that, this first chamber is formed between this lower cover and this heat-conducting seat.

4. light emitting diode road lamp as claimed in claim 2 is characterized in that, this second chamber is formed between this loam cake and this heat-conducting seat.

5. light emitting diode road lamp as claimed in claim 2 is characterized in that, the outer peripheral edges projection of this heat-conducting seat forms a coaming plate, and this lower cover is connected in an end of this coaming plate, and this loam cake is connected in the other end of this coaming plate.

6. light emitting diode road lamp as claimed in claim 1 is characterized in that, corresponding this light emitting module position of this heat radiation lampshade offers a loophole that communicates with this first chamber.

7. light emitting diode road lamp as claimed in claim 1 is characterized in that, also comprises a printing opacity guard shield that covers this light emitting module.

8. light emitting diode road lamp as claimed in claim 7 is characterized in that, this printing opacity guard shield comprises and is fixed in the framework on this heat-conducting seat and is embedded at a transparent panel in this framework.

9. light emitting diode road lamp as claimed in claim 1 is characterized in that, this plural number air vent is opened on this heat radiation lampshade location about that should light emitting module.

10. light emitting diode road lamp as claimed in claim 1 is characterized in that, also comprises a lamp stand assembly, and this lamp stand assembly comprises the load bearing seat that is fixed in this heat radiation lampshade and a support bar of this load bearing seat of cross-under.