CN201555187U

CN201555187U - Radiating structure for LED illuminating lamp

Info

Publication number: CN201555187U
Application number: CN2009202052700U
Authority: CN
Inventors: 李廷帅
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2010-08-18
Anticipated expiration: 2019-09-30

Abstract

The utility model provides a radiating structure for an LED illuminating lamp. The radiating structure comprises a metal lamp bracket, strip-shaped metal radiating fins and metal light bars used for mounting an LED circuit board, wherein two to decades of metal light bars are provided and are arranged in parallel at certain intervals, the head ends and the tail ends of the metal light bars are fixed on the metal lamp bracket, and the bottom surfaces of the metal light bars are closely clung to the back sides of the metal radiating fins; two to decades of metal radiating fins are provided, are arranged in parallel at certain intervals and from a grid spatial structure with the metal light bars, and two ends of the metal radiating fins are fixed on the metal lamp bracket. The utility model adopts the scheme that great amount of heat generated during working of the LED light source can be quickly transferred out by means of heat conduction and natural convection, thereby having high reliability and heat transmission efficiency and good radiating effect. The LED lamp can be ensured to work under the temperature of 55 DEG C, thereby greatly prolonging the service life of the LED lamp.

Description

The radiator structure of light-emitting diode (LED) illuminating lamp

Technical field

The utility model relates to a kind of radiator structure of light-emitting diode (LED) illuminating lamp.

Background technology

Under current global energy environment in short supply, energy savings has become trend of the times, and country also vigorously advocates energy-saving and emission-reduction simultaneously, and the LED lamp is energy-conservation with it, long-life, advantage such as environment friendly and pollution-free be widely used in illumination and the lamp decoration.In the light fixture production practices, for improving brightness, generally adopt the led array monolithic construction, but this class way causes easily the LED junction temperature to rise, when junction temperature surpassed its maximum allowable temperature, the fast and dead lamp phenomenon of lamp decay can appear in LED.This shows that heat dissipation problem has become one of bottleneck of restriction LED illumination application development.

Summary of the invention

The purpose of this utility model is to have the bad problem of radiating effect at existing light-emitting diode (LED) illuminating lamp, and a kind of radiator structure of light-emitting diode (LED) illuminating lamp of good heat dissipation effect is provided.

The purpose of this utility model is achieved in that the utility model comprises metal lamp bracket, strip metal fin and is used to install the lamp strip metal type bar of LED circuitboard, described lamp strip metal type bar is two to tens of, be arranged in parallel with a determining deviation, the head end and the tail end of lamp strip metal type bar are fixed on the metal lamp bracket, the bottom surface of lamp strip metal type bar and the back side of metal fin are close to, metal fin is two to tens of, arrange with a determining deviation, form the mesh space structure with lamp strip metal type bar, the two ends of metal fin are fixed on the metal lamp bracket.

As preferred version, described lamp strip metal type bar is the grooved metal profile, and described LED circuitboard is installed in the groove of grooved metal profile.As better scheme, fill full heat-conducting glue in the junction of described lamp strip metal type bar and LED circuitboard.

As preferred version, every certain spaced flutedly communicate with its front, groove is corresponding to the interval of lamp strip metal type bar at the back side of described metal fin.

As preferred version, described metal lamp bracket is connected to form by hollow metal type bar, has vertical through hole on hollow metal type bar.

Technique effect of the present utility model is: a large amount of heats that the utility model produces led light source at work can in time promptly pass in the mode of heat conduction and free convection, the reliability height, the heat transfer efficiency height, good heat dissipation effect, can guarantee that the LED lamp works under 55 ℃ of temperature, greatly prolong the service life of LED.

Description of drawings

Fig. 1 is the front three-dimensional structure diagram of embodiment.

Fig. 2, Fig. 3 are the stereogram of lamp strip metal type bar among the embodiment and the sectional view of amplification.

Fig. 4 is the stereogram of high light-passing plastic spare among the embodiment.

Fig. 5 is the stereogram of light-emitting diode light modulation bar among the embodiment.

Fig. 6, Fig. 7 are respectively the fixing fixing structure charts of plastic parts of plastic parts, lamp bar of interface among the embodiment.

Fig. 8 is the structure figure of embodiment.

Fig. 9 is the isometric front view of metal fin among the embodiment.

Figure 10 is the A enlarged drawing of Fig. 9.

Figure 11 is the rear isometric view of metal fin among the embodiment.

Figure 12 is the B enlarged drawing of Figure 11.

The specific embodiment

Referring to Fig. 1 to Fig. 8; present embodiment is the pin-connected panel led lamp that has adopted the utility model radiator structure; it comprises metal lamp bracket 8; metal fin 17; interface is plastic parts 13 fixedly; the lamp bar is plastic parts 11 fixedly; interface protection plastic jacket 10 and several light-emitting diode light bar (being called for short " LED lamp bar "); metal lamp bracket 8 is a frame structure; hollow metal type bar by aluminium matter is that Aluminum Hollow type bar connects to form; on Aluminum Hollow type bar, have vertical through hole; interface fixedly plastic parts 13 and lamp bar fixedly plastic parts 11 be fixed on the two ends of metal lamp bracket 8 respectively with screw; fixedly be provided with lamp bar interface screens 15 on the plastic parts 13 at interface; in each lamp bar interface screens 15, be provided with copper sheet interface 14; the quantity of lamp bar interface screens 15 equates with the quantity of LED lamp bar; fixedly be provided with lamp bar screens 12 on the plastic parts 11 at the lamp bar; its quantity equates with the quantity of LED lamp bar; several light-emitting diode light bars with a determining deviation parallel equidistant side by side in metal lamp bracket 8; the head end of every light-emitting diode light bar and tail end are contained in interface fixedly the lamp bar interface screens 15 of plastic parts 13 and lamp bar fixedly in the lamp bar screens 12 of plastic parts 11 respectively; copper sheet interface 14 in the lamp bar power interface of light-emitting diode light bar and the screens of lamp bar interface 15 contact continuous; interface protection plastic jacket 10 is fixed on the fixedly top of plastic parts 13 of interface; fixedly have the screw position on the plastic parts 13 at interface, interface protection plastic jacket 10 and interface fixedly plastic parts 13 usefulness screws are fixed together.

Referring to Fig. 1 to Fig. 5, light-emitting diode light bar comprises aluminium base LED circuitboard 1 in the present embodiment, large-power light-emitting diodes lamp pearl 2, the lamp strip metal type bar of aluminium matter is a lamp bar aluminium type bar 3, high transmission rate working of plastics 6, head end plastic parts 9, tail end plastic parts 16, wherein aluminium base LED circuitboard 1 is bar shaped, lamp bar aluminium type bar 3 is a grooved aluminium type bar, several large-power light-emitting diodes lamp pearls 2 are installed on the aluminium base LED circuitboard 1, they are vertically arranged along aluminium base LED circuitboard 1, aluminium base LED circuitboard 1 is installed in the groove 4 of lamp bar aluminium type bar 3 and by Reflow Soldering and is fixed on the lamp bar aluminium type bar 3, edge at aluminium base light emitting diode wiring board 1 coats heat-conducting glue, heat-conducting glue fully is covered with in the junction of lamp bar aluminium type bar 3 with LED circuitboard 1, high transmission rate working of plastics 6 covers on outside the aluminium base light emitting diode wiring board 1, the both sides buckle 7 of high transmission rate working of plastics 6 need be stuck in during connection in the screens 5 on the lamp bar aluminium type bar 3 both sides outer walls, thereby high transmission rate working of plastics 6 is fixedly secured on lamp bar aluminium type bar 3, its outer glue sealing that adopts, on lamp bar aluminium type bar 3, be provided with the screw position, head end plastic parts 9 and tail end plastic parts 16 link together by screw with the head end and the rear of lamp bar aluminium type bar 3 respectively, in tail end plastic parts 16, be fixed with lamp bar power interface, lamp bar power interface and aluminium base light emitting diode wiring board 1 are connected by lead, and lamp bar aluminium type bar 3 is fixed on the metal lamp bracket 8 by head end plastic parts 9 and tail end plastic parts 16.

Referring to Fig. 8 to Figure 11, present embodiment is arranged with several metal fins 17 in the behind of lamp bar aluminium type bar 3, metal fin 17 is a strip, its two ends are welded on the inboard of metal lamp bracket 8 and fix with screw, in the present embodiment metal fin 17 is installed in the metal lamp bracket 8 perpendicular to the direction of lamp bar aluminium type bar 3 and with determining deviation equidistant parallel arrangement, metal fin 17 constitutes network with lamp bar aluminium type bar 3 in metal lamp bracket 8, metal fin 17 at the back side of metal fin 17 every certain spaced fluted 18, groove 18 communicates with the front of metal fin 17, the width of groove 18 equates with the spacing of light-emitting diode light bar, the bottom surface of smooth place, the back side of metal fin 17 and lamp bar aluminium type bar 3 is close to when mounted, its groove 18 is corresponding to the interval of lamp bar aluminium type bar 3, thereby is exposed in the outside air.

Metal lamp bracket in the foregoing description is an aluminium matter lamp bracket, and metal fin is an aluminium heat sink, and lamp strip metal type bar is a lamp bar aluminium type bar, and they can also adopt other metal to make certainly.

Referring to Fig. 1 to Figure 11, radiator structure among the embodiment comprises lamp bar aluminium type bar 3, metal lamp bracket 8 and metal fin 17, they not only play the function that the LED light emitting diode is installed, possessed good heat sinking function simultaneously: metal lamp bracket 8 is frame structure, light-emitting diode light bar that the back is closely pressed close to and metal fin 17 are network structure, and metal fin 17 has groove 18 at the interval of light-emitting diode light bar, like this, just in network structure, leave very big space, help the cross-ventilation heat radiation; Metal fin 17 back sides are pressed on the lamp bar aluminium type bar 3 and its two ends are welded on the inboard of metal lamp bracket 8, area of dissipation that it is bigger and rational the layout make a part of heat to pass in metal lamp bracket 8 and air in heat conducting mode by metal fin 17 rapidly; Metal lamp bracket 8 is made up of hollow aluminum type bar, and on its hollow inwall, have a lot of grooves to increase area of dissipation, on hollow aluminum type bar, also have vertical through hole, be beneficial to the inner air convection current, in hollow aluminum type bar hollow, also can be added with aluminium type bar at the interface of adjacent hollow aluminium type bar, make the contact-making surface between hollow aluminum type bar bigger, thereby help improving capacity of heat transmission; The heat that said structure produces the great power LED light emitting diode fully conducts to lamp bar aluminium type bar 3 via aluminium base light emitting diode wiring board 1, conduct to metal fin 17 and whole metal lamp bracket 8 again, area of dissipation is big, promoted the Natural Heat Convection ability simultaneously, accelerated radiating rate, heat can be conducted rapidly in a large number, effectively reduced heat radiation between the LED lamp, reduced junction temperature significantly, radiating effect is splendid, the operating temperature that can guarantee great power LED remains in 55 ℃, improve the service life of LED greatly, reduced the decay of LED, avoided the generation of dead lamp phenomenon, simultaneously, this device has effectively alleviated the weight of light fixture owing to be extensive use of the hollow aluminum section bar, has reduced the die sinking expense, its many-sided advantage guarantees that it will be widely used in illumination and lamp decoration aspects such as street lamp, Tunnel Lamp.

Lamp strip metal type bar is generally two to tens of in the utility model, and metal fin is generally two to tens of.

Claims

1. the radiator structure of a light-emitting diode (LED) illuminating lamp, it is characterized in that: comprise the metal lamp bracket, strip metal fin and the lamp strip metal type bar that is used to install LED circuitboard, described lamp strip metal type bar is two to tens of, be arranged in parallel with a determining deviation, the head end and the tail end of lamp strip metal type bar are fixed on the metal lamp bracket, the bottom surface of lamp strip metal type bar and the back side of metal fin are close to, metal fin is two to tens of, arrange with a determining deviation, form the mesh space structure with lamp strip metal type bar, the two ends of metal fin are fixed on the metal lamp bracket.

2. the radiator structure of light-emitting diode (LED) illuminating lamp according to claim 1, it is characterized in that: described lamp strip metal type bar is the grooved metal profile, and described LED circuitboard is installed in the groove of grooved metal profile.

3. the radiator structure of light-emitting diode (LED) illuminating lamp according to claim 2 is characterized in that: fill full heat-conducting glue in the junction of described lamp strip metal type bar and LED circuitboard.

4. according to the radiator structure of claim 1 or 2 or 3 described light-emitting diode (LED) illuminating lamps, it is characterized in that: described lamp strip metal type bar is fixed on the metal lamp bracket by head end and tail end plastic parts.

5. according to the radiator structure of claim 1 or 2 or 3 described light-emitting diode (LED) illuminating lamps, it is characterized in that: described lamp strip metal type bar is arranged with a determining deviation equidistant parallel, described metal fin is arranged with a determining deviation equidistant parallel, and lamp strip metal type bar is vertical mutually with metal fin.

6. according to the radiator structure of claim 1 or 2 or 3 described light-emitting diode (LED) illuminating lamps, it is characterized in that: every certain spaced flutedly communicate with its front, groove is corresponding to the interval of lamp strip metal type bar at the back side of described metal fin.

7. according to the radiator structure of claim 1 or 2 or 3 described light-emitting diode (LED) illuminating lamps, it is characterized in that: described metal lamp bracket is connected to form by hollow metal type bar, has vertical through hole on hollow metal type bar.

8. the radiator structure of light-emitting diode (LED) illuminating lamp according to claim 7 is characterized in that: have groove on the hollow inwall of described hollow metal type bar.

9. according to the radiator structure of claim 1 or 2 or 3 described light-emitting diode (LED) illuminating lamps, it is characterized in that: described metal lamp bracket is an aluminium matter lamp bracket, and described metal fin is an aluminium heat sink, and described lamp strip metal type bar is a lamp bar aluminium type bar.