CN201203004Y

CN201203004Y - Safe high luminance LED light fitting

Info

Publication number: CN201203004Y
Application number: CNU2008201184464U
Authority: CN
Inventors: 陈冠铭; 黄耀辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-10
Filing date: 2008-06-10
Publication date: 2009-03-04
Anticipated expiration: 2018-06-10

Abstract

The utility model provides a safe high-brightness LED lamp, comprising mainly a lampshade, a lamp holder, an LED module group and a circuit board, the lampshade and the lamp holder form an accommodation space after combination to place the LED module group; wherein, the LED module group comprises a radiator, an LED lamp panel and a reflecting wall, the LED lamp panel is flatly attached and combined at one end of the radiator, and the LED lamp is covered by the reflecting wall to separate the accommodation space into a light source refraction space and an air flow space, and the outer end of the radiator is configured with a fan; hereby, uniform high bright can be acquired when the LED light source is refracted by the reflecting wall and dispersed to the light source refraction space of the lampshade and refracted and dispersed again, and heat dissipation efficiency can be furthermore increased to prolong the service life of the LED bulb through air supply of the fan led by the air flow space.

Description

The LED light fixture of safe high brightness

Technical field

The utility model is a kind of light-source structure, refers in particular to a kind of LED light fixture of safe high brightness.

Background technology

LED has advantages such as characteristics such as power saving, life-span length, no mercury, high color reproduction and environmental protection, have more high illumination uniformity and enough luminous fluxes, therefore be widely used in various field, as: equipment such as traffic sign, large-scale advertisement billboard, flashlight, room lighting.

Yet, utilize the LED bulb as light emitting source, if the bulb lazy weight, bulb brightness still can't be brought into play to the best, if bulb quantity is too many, it is then too high to expend electric weight, and in use can continue to produce high heat, impel the temperature increase arround the LED, the brightness meeting that causes LED is influenced and reduce.Especially temperature is too high, the easier circuit malfunction that makes LED, and then cause reduce the service life of LED lamp group.

Summary of the invention

The utility model purpose is to provide a kind of LED light fixture of safe high brightness, to overcome the defective of above-mentioned traditional structure, can obtain outside the uniform high brightness, more can be subjected to the guiding of the air-flow flowing space by the air-supply of fan, increase radiating efficiency, increased the service life of LED bulb.

According to above-mentioned purpose, a kind of LED light fixture of safe high brightness comprises a lampshade and a tube face and a LED module, circuit board; It is characterized in that,

One lampshade is the hollow cover body with an opening, and its inner face is attached with diffusive reflective layer, hollow cover body opening with combine with ostiolate tube face constitute one can be for the accommodation space of placing this LED module;

One LED module, made up by a radiator and LED lamp plate and reflecting wall, this radiator one end tool is for the smooth plane of LED lamp plate, and is incorporated into reflecting wall, reflecting wall metope ring encloses the lamp in the LED of LED lamp plate, and described accommodation space branch is separated with light source refraction space and two spaces, air current flow space; The thermal column outer end of radiator has been installed with radiator fan again;

One circuit board is fixedly arranged in tube face inner edge lower end and is connected in power contact, and is communicated in radiator fan and LED lamp plate more respectively.

Wherein, the tube face outer edge offers the air vent of corresponding its radiator fan.

Wherein, LED module reflecting wall internal layer is attached with reflectance coating, and skin is that aluminium material is made.

Wherein, the reflecting wall of LED module is the infundibulate body structure of reaming.

Wherein, the radiator fan of radiator thermal column outer end disposes in addition and is combined with screen pack.

Wherein, the reflecting wall metope is a ramp structure.

Wherein, the reflecting wall metope is a globoidal structure.

Wherein, reflecting wall reaming opening rim is less than the tube face inner diameter.

The utility model beneficial effect:

In view of the above, when led light source reflect for the first time via reflecting wall diffuse to present uniform light source effect in the lampshade light source refraction space after, reflect diffusion for the second time through lampshade light source diffusion layer again, make light fixture produce outside the uniform highly luminescent brightness, more can pass through the direct air-supply of fan with the guiding of heat energy through the air current flow space, distribute outside light fixture by louvre fast, increase radiating efficiency, and increased the service life of LED bulb.

The utility model passes through the reflecting wall that the LED lamp is provided with on every side, the brightness of LED lamp is reflected for the first time diffuse on the lampshade, and the diffusive reflective layer that sees through lampshade inner edge layer again through light source refraction space reflects diffusion, the brightness height of generation and even for the second time.

The utility model utilizes radiator to be contacted with the LED lamp plate, absorb hot in a large number, directly heat energy is subjected to the guiding of the air-flow flowing space again by radiator fan, louvre by tube face distributes fast in the outer end, reduce the temperature of this LED module, reason is overheated and cause damage, increases the bulb in service life.

Bulb of the present utility model can directly apply on the existing equipment, and the scope of application is wider, can reduce production cost.

The utility model obtains higher and uniform luminous efficiency by single LED lamp, low in energy consumption and power saving.

Description of drawings

Fig. 1: three-dimensional exploded view of the present utility model.

Fig. 2: three-dimensional combination figure of the present utility model.

Fig. 3: assembled sectional view of the present utility model.

Fig. 4: light source effect schematic diagram of the present utility model.

Fig. 5: heat dissipation direction schematic diagram of the present utility model.

Fig. 6: heat radiation action schematic diagram of the present utility model.

Fig. 7: another embodiment of reflecting wall of the present utility model.

Fig. 8: another embodiment of the present utility model.

Fig. 9: another embodiment of the present utility model action schematic diagram that dispels the heat.

The specific embodiment

See also Fig. 1, Fig. 2, Fig. 3, light fixture embodiment of the present utility model presents with bulb structure, mainly comprising a lampshade 1, a tube face 10 and a LED module 2 and circuit board 3 forms, wherein lampshade 1 is the hollow cover body structure with an opening, its inner layer surface also is attached with light source diffusion layer 11, and the outer rim of lampshade openend is provided with and forms an accommodation space after spiro tooth part 110 can spin mutually with tube face 10 openend internal screw threads 100.This accommodation space can hold this LED module 2 and circuit board 3, wherein LED module 2 is formed by LED lamp plate 20 and reflecting wall 22 and radiator 23, radiator fan 24, this LED lamp plate 20 is provided with the LED lamp 21 of predetermined number (being illustrated as one), and transverse plane 230 affixed applyings on LED lamp 21 terminal contacts 210 and the radiator 23, and LED lamp plate 20 can be coated with heat-conducting cream in addition with the face that this radiator joins, and can increase the area and the heat transfer efficiency of contact between the two.The periphery of LED lamp 21 is encircled by reflecting wall 22 and is enclosed again, this reflecting wall 22 is a multilayer structure, skin is that aluminum metal is made, the internal layer cambered surface is that reflective coating 220 is made, its body designs for funnel structure, bottom surface, lower end 221 tool holes 222 are arranged in the reflecting wall 22 for LED lamp 21, and these reflecting wall 22 opening rims and subsides are touched to tube face 10 internal faces accommodation space is separated into light

source refraction space

25 and 26 two enclosure spaces in air current flow space; Hold heating column 231 ends that extended then to impose radiator fan 24 configuration combinations in addition at radiator 23, using can provide on the heating column 231 that air quantity acts directly on radiator 23, heating column 231 is collected the guiding that the heat energy of receiving is subjected to the air-flow flowing space 26, heat energy is distributed to light fixture by louvre 101 fast lowers the temperature outward; Circuit board 3 then is fixedly arranged in tube face 10 lower ends with insulating cement 30 and is communicated with power contact to be made and is electric pathway, via circuit board 3 tube face 10 outer end power supplys are changed a suitable transmitting DC and give LED lamp plate 20 and radiator fan 24, make the start of LED lamp shinny, and make radiator fan 24 start the air-supply heat radiation.

Please consult Fig. 4 again, the LED lamp 21 of this bulb accept power supply begin luminous after, light source is reflected diffusion by the reflective coating 220 of coating on reflecting wall 22 inner faces, light source evenly is projected to the light source diffusion layer 11 of lampshade 1 internal layer, again through light source diffusion layer 11 refraction diffusion for the second time and light source refraction space 25 enclosure spaces, use its luminosity is concentrated and promoted to LED lamp 21 luminosity, supply the usefulness of illumination; And Fig. 5, the LED of being lamp 21 shown in Figure 6 make the heat energy that the time spent produces; after radiator 23 planar conductive that can touch via subsides collects the hot temperature of receipts to the large tracts of land of each heating column 231 and reflecting wall 22 outer aluminum metal; utilize radiator fan 24 directly to blow again to each heating column 231 of radiator 23; with the guiding of heat energy with air current flow space 26; be distributed to the light fixture outer rim by louvre 101 fast; reduce the high temperature that LED lamp 21 produces fast, reach the effect of protection.

Consulting shown in Figure 7ly, is another embodiment of reflecting wall 22, mainly the body of reflecting wall 22 is designed to the funnel body on inclined-plane 4.

And Fig. 8; Fig. 9 discloses; be another embodiment of the present utility model; mainly in radiator 23 outer ends; dispose screen pack 5 and radiator fan 50; by radiator fan 50 air is cooled off in the outer end and filter the outer dust of light fixture in advance via movable screen pack 5; again clean cold air is directly blowed towards heating column 231; decapacitation is with the guiding of heat energy with air current flow space 26; be distributed to the outer rim air by louvre 101 fast; reduce the high temperature that LED lamp 21 produces fast; reach the effect of protection, more prevent the lamp interior laying dust, the user mode of maintain internal part and life-span.

Claims

1. the LED light fixture of a safe high brightness comprises a lampshade and a tube face and a LED module, circuit board; It is characterized in that,

2, the LED light fixture of safe high brightness according to claim 1 is characterized in that, the tube face outer edge offers the air vent of corresponding its radiator fan.

3, the LED light fixture of safe high brightness according to claim 1 is characterized in that, LED module reflecting wall internal layer is attached with reflectance coating, and skin is that aluminium material is made.

4, the LED light fixture of safe high brightness according to claim 1 is characterized in that, the reflecting wall of LED module is the infundibulate body structure of reaming.

5, the LED light fixture of safe high brightness according to claim 1 is characterized in that, the radiator fan of radiator thermal column outer end configuration in addition is combined with screen pack.

6, the LED light fixture of safe high brightness according to claim 3 is characterized in that, the reflecting wall metope is a ramp structure.

7, the LED light fixture of safe high brightness according to claim 3 is characterized in that, the reflecting wall metope is a globoidal structure.

8, the LED light fixture of safe high brightness according to claim 3 is characterized in that, reflecting wall reaming opening rim is less than the tube face inner diameter.