CN201535453U

CN201535453U - High-power LED lighting lamp

Info

Publication number: CN201535453U
Application number: CN2009201830080U
Authority: CN
Inventors: 李东洋
Original assignee: Xiamen Best-Light Photoelectric Technology Co Ltd
Current assignee: Hunan Best-light Optoelectronics Co., Ltd.
Priority date: 2009-09-17
Filing date: 2009-09-17
Publication date: 2010-07-28
Anticipated expiration: 2019-09-17

Abstract

The utility model discloses a high-power LED lighting lamp which comprises at least one lighting module and at least one active radiating module; the light module comprises an LED lamp group and a lamp holder; the LED lamp group is arranged on the lamp holder in an array shape; the bottom of the lamp holder is provided with radiating fins, and air circulation channels are formed between the radiating fins; the active radiating module corresponds to the lighting module one by one, and comprises a blower and an air duct which is connected with the blower; and the opening of the air duct is arranged on end of the air circulation channel between the radiating fins. The lighting lamp can ensure that the LED lighting lamp normally and stably works under the condition of high current, prolongs the service life and reduces the cost.

Description

A kind of high-power LED lighting fixture

Technical field

The utility model relates to a kind of lighting device, particularly is applied to the radiator structure on the LED lighting.

Background technology

The LED light fixture of high-quality be unable to do without high-quality high-power LED chip, and the stable led chip of excellent performance all is to come from well-known big factory of several families (as CREE, OSRAM, NICHIA etc.), to such an extent as to high led chip occupied whole light fixture 40%-50% cost and cause the whole too high market of lamp cost beyond affordability, become a urgent problem so how to reduce the cost of high-power LED lamp.

As shown in Figure 1, abscissa is the drive current of led chip, and ordinate is the luminous flux of led chip; Along with the rising of drive current, the luminous flux of led chip also raises synchronously.

As shown in Figure 2, abscissa is the led chip junction temperature, and ordinate is an optical efficiency; Along with the rising of led chip junction temperature, the luminous efficiency of led chip can and then reduce.

As shown in Figure 3, we give light fixture the 10 logical electric currents of different sizes respectively, allow led chip work under different electric currents, test the brightness value of test section simultaneously, and we obtain one group of data, shown in the reference table 1.

As shown in Table 1, the drive current that merely improves led chip can not effectively improve the optical efficiency of led chip, because the optical efficiency of LED is subjected to the influence of two external conditions simultaneously: the size of drive current, the junction temperature of chip; We can apply greatly formula they are described it

Table 1

Between relation:

The actual luminous flux of led chip=LED nominal luminous flux * current coefficient * heat coefficient that declines

In view of aforementioned analysis, the design people improves at present lighting radiator structure, and this case produces thus.

The utility model content

Main purpose of the present utility model is to provide a kind of high-power LED lighting fixture, and it can normally stably be worked by assurance LED lighting under big current condition, prolongs lamp life, reduces the light fixture cost.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of high-power LED lighting fixture, comprise at least one lighting module and at least one active heat removal module, lighting module comprises LED lamp group and lamp socket, and LED lamp group is array and is arranged on the lamp socket, the bottom of lamp socket is provided with radiating fin, forms air communication channel between each radiating fin; The active heat removal module is corresponding one by one with lighting module, and it comprises an air blast and the air channel that links to each other with air blast, and the opening in air channel is arranged on an end of the air communication channel between the aforementioned radiating fin.

Above-mentioned LED lamp group comprises at least one LED, at least one secondary optical lens and an aluminium base, and LED is planar array and is arranged on the aluminium base, and secondary optical lens and LED are configured on the aluminium base correspondingly.

The drive current of above-mentioned LED is more than or equal to 500mA.

Above-mentioned lighting also comprises at least one driving power module and a stuck-module, and lighting module, active heat removal module and driving power module all are arranged in the stuck-module, and the driving power module is corresponding one by one with lighting module, for it provides working power.

Above-mentioned driving power module comprise three water joints, HV Terminal platform, low-voltage terminal platform, with the air blast driving power of active heat removal module coupling and with the LED driving power of lighting module coupling, one end of air blast driving power and LED driving power is connected a water joint by the HV Terminal platform, and the other end connects other two water joints via the low-voltage terminal platform.

After adopting such scheme, the utlity model has following some improvement:

(1) set up the active heat removal module, reduce the temperature rise of LED working junction temperature, the setting of secondary optical lens simultaneously also can improve luminous efficiency, and avoids the LED long-term work in hot environment, increases the service life;

(2) lighting module adopts the mode of separating setting with the driving power module, avoids the heat between the pyrotoxin to disturb, and adopts big current work, promotes the utilization rate of LED, reduces the cost of lighting;

(3) adopt modular arrangements, all corresponding whole irradiation area of each LED when partial L ED breaks down, does not influence the illumination on whole road surface;

(4) in addition, existing integral illumination light fixture is split, can effectively reduce windage, increase area of dissipation;

(5) modular configuration makes later maintenance convenient, and when certain module failure, but all the other module operate as normal do not influence integral illumination, therefore need not to keep in repair immediately, guarantees the stability of work, and can carry out periodic maintenance, saves maintenance cost.

Description of drawings

Fig. 1 is the function relation figure of led chip luminous flux and operating current;

Fig. 2 is the function relation figure of led chip working junction temperature degree and its optical efficiency;

Fig. 3 is the schematic diagram of light fixture test;

Fig. 4 is the schematic perspective view that adopts the utility model to be looked by the bottom;

Fig. 5 is the schematic perspective view that the utility model is looked by the top;

Fig. 6 is a decomposing schematic representation of the present utility model;

Fig. 7 is the three-dimensional exploded view of lighting module in the utility model;

Fig. 8 is the three-dimensional exploded view of driving power module in the utility model;

Fig. 9 is the three-dimensional exploded view of active heat removal module in the utility model;

Figure 10 is the three-dimensional exploded view of stuck-module in the utility model.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figure 6, described LED lighting is made up of at least one lighting module 1, at least one driving power module 2, at least one active heat removal module 3 and a stuck-module 4; Lighting module 1 is 3, is horizontally installed on the stuck-module 4.

Each lighting module 1 all is equipped with a driving power module 2 that is complementary with it and active heat removal module 3, and wherein driving power module 2 all is arranged on the relevant position of stuck-module 4 with active heat removal module 3; Each lighting module 1 comprises 20 LED (the basic standard power consumption of 500mA electric current is 31W, and the electric current decision that its concrete power consumption is provided by the driving power module is adjustable value), when the quantity of lighting module 1 during greater than one, is configured in side by side on the stuck-module 4.

After adopting such scheme, LED and power supply all adopt the modularization setting, do not influence the illumination of whole lamp after a module is bad, adopt the plug-in unit mode easy to maintenance, and cost is low, and power supply and LED are provided with respectively in addition, favourable heat radiation; With lighting module 1 one to one active heat removal module 3 can make the heat that lighting module 1 produces in the course of the work carry out convective heat exchange with environment rapidly, thereby guarantee that LED is at high electric current (being higher than 500mA) time steady operation; After adopting Modularized LED lamp and power supply, when one of them LED or power supply break down, do not influence the illumination of whole LED light fixture, therefore do not need to keep in repair at any time, only need some cycles to safeguard, as long as change one of them module when keeping in repair simultaneously, do not change and do not need whole lamp pulled down, use manpower and material resources sparingly.

As shown in Figure 7, described lighting module 1 is made up of LED lamp group 16, lamp socket 11, end cap 12, water proof ring 13, translucent cover 14 and translucent cover pressing plate 15, wherein, the bottom of lamp socket 11 is provided with radiating fin 111, heat radiation when making things convenient for 16 work of LED lamp group, LED lamp group 16 comprises LED 161, secondary optical lens 162 and aluminium base 163, and LED 161 Reflow Solderings are on aluminium base 163, and secondary optical lens 162 is configured on the aluminium base 163 correspondingly with LED 161; Many group LED lamp groups 16 are set in parallel on the lamp socket 11, end cap 12 is positioned at both sides, and use screw 121 to be fixed on the lamp socket 11, and also be provided with water proof ring 13 between end cap 12 and the lamp socket 11, translucent cover 14 is positioned at the top of lamp socket 11, be covered on the LED lamp group 16, and translucent cover pressing plate 15 is positioned on the translucent cover 14, and translucent cover 14 and translucent cover pressing plate 15 is fixed on the lamp socket 11 by flat head screw 151.

As shown in Figure 8, described driving power module 2 is made up of power pack loam cake 21, power pack lower cover 22, three water joints 231,232,233, HV Terminal platform 241, low-voltage terminal platform 242, controller 25, air blast driving power 261, LED driving power 262,263 and silicone gaskets 27.Wherein, power pack loam cake 21 is fastened on the power pack lower cover 22, thereby forms a containing cavity, and silicone gasket 27 is arranged between the two, and power pack loam cake 21 compresses silicone gasket 27, can play the effect of water-tight; In addition, HV Terminal platform 241, low-voltage terminal platform 242, controller 25, air blast driving power 261 and LED driving power 262,263 all are fixed on the power pack lower cover 22, alternating current wires enters in the airtight power pack by water joint 231, by HV Terminal platform 241 and controller 25 electric current is input in blower power supply 261 and the LED driving power 262,263 again, is input to LED lighting module 1 and active heat removal module 3 by the direct current electric wire respectively by low-voltage terminal platform 242, water joint 232,233 again; The effect of its middle controller 25 is to return a signal when 3 work of active heat removal module are undesired, the control alternating current disconnects, stop lighting module 1 power supply, avoid LED lamp group 16 continuous firing under the heat radiation unfavorable condition active heat removal module 3 correspondences that break down; The bottom of power pack lower cover 22 also is equipped with a plurality of lower cover installation feet 221, and driving power module 2 promptly is fixed on the light fixture lower cover 42 of stuck-module 4 by this lower cover installation foot 221.

As shown in Figure 9, active heat removal module 3 comprises air blast 31 and air channel 32, air channel 32 is the wide-mouth type, the air outlet 311 corresponding connections of its air intake vent 321 and air blast 31, and the air outlet position in air channel 32 is over against the passage between each radiating fin 111 of corresponding lighting module 1 with it, and whole active heat removal module 3 is installed on the fixed head 47 of stuck-module 4.

As shown in figure 10, stuck-module 4 is made up of light fixture loam cake 41, light fixture lower cover 42, crossbeam 1, crossbeam 2 432, two curb girders 44, adapter 45, fixed head 46, fixed head 47 and lamp stand support 48; Its middle cross beam 1, crossbeam 2 432, two curb girders 44 are individually fixed in a side of light fixture lower cover 42, and be screwed together by 4 adapters 45, fixed head 46 and fixed head 47 all are screwed on curb girder 44, light fixture loam cake 41 is positioned at the top side, lamp stand support 48 is made up of hinge 1, hinge 2 482 and lamp stand joint 483, and lamp stand support 48 is fixed on the crossbeam 1 by screw; Lighting module 1 is screwed on crossbeam 2 432 and fixed head 46, and active heat removal module 3 is fixed on the fixed head 47.

After adopting aforementioned structure, as shown in Figure 4, quicken the active heat removal module 3 that air flows, allow air quicken to flow along the direction of the radiating fin 111 of arrow points lamp socket 11 bottoms by installing one additional for lighting module 1, repeat experiment shown in Figure 3 again, obtain table 2.

Table 2

By comparison sheet 1, table 2 as can be known, led chip is worked at a certain temperature, then promote the optical efficiency that electric current can improve led chip effectively; In other words, for identical light fixture total light flux, after taking to strengthen electric current and adding the method for strong cooling heat dissipation, just can reach with the led chip of lesser amt.

More than describing only is embodiment of the present utility model, is not departing under the design of the present utility model, all should be included within the technical conceive of the present utility model simple modification of the utility model and replacement.

Claims

1. high-power LED lighting fixture, it is characterized in that: comprise at least one lighting module and at least one active heat removal module, lighting module comprises LED lamp group and lamp socket, LED lamp group is array and is arranged on the lamp socket, the bottom of lamp socket is provided with radiating fin, forms air communication channel between each radiating fin; The active heat removal module is corresponding one by one with lighting module, and it comprises an air blast and the air channel that links to each other with air blast, and the opening in air channel is arranged on an end of the air communication channel between the aforementioned radiating fin.

2. a kind of high-power LED lighting fixture as claimed in claim 1, it is characterized in that: described LED lamp group comprises at least one LED, at least one secondary optical lens and an aluminium base, LED is planar array and is arranged on the aluminium base, and secondary optical lens and LED are configured on the aluminium base correspondingly.

3. a kind of high-power LED lighting fixture as claimed in claim 2 is characterized in that: the drive current of described LED is more than or equal to 500mA.

4. a kind of high-power LED lighting fixture as claimed in claim 1, it is characterized in that: described lighting also comprises at least one driving power module and a stuck-module, lighting module, active heat removal module and driving power module all are arranged in the stuck-module, the driving power module is corresponding one by one with lighting module, for it provides working power.

5. a kind of high-power LED lighting fixture as claimed in claim 4, it is characterized in that: described driving power module comprise three water joints, HV Terminal platform, low-voltage terminal platform, with the air blast driving power of active heat removal module coupling and with the LED driving power of lighting module coupling, one end of air blast driving power and LED driving power is connected a water joint by the HV Terminal platform, and the other end connects other two water joints via the low-voltage terminal platform.