CN202327727U

CN202327727U - Plastic cement coated light emitting diode (LED) lamp

Info

Publication number: CN202327727U
Application number: CN2011204472944U
Authority: CN
Inventors: 金松山
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-29
Filing date: 2011-10-29
Publication date: 2012-07-11
Anticipated expiration: 2021-10-29

Abstract

The utility model discloses a plastic cement coated light emitting diode (LED) lamp, which comprises a metal lamp head, an insulation case, an LED power supply plate, a heat insulation plate, covering plastic cement, a heat radiator, a heat transfer plate and an LED aluminum base plate. When the LED lamp is formed, the LED aluminum base plate fixedly provided with the LED lamp is fixedly arranged above an aluminum base plate fixing hole of the heat transfer plate through screw bolts. The heat transfer plate is connected with the recessed part of the heat radiator in a tight matching way, the heat insulation plate is arranged on the heat radiator, and the covering plastic cement is arranged on the outer periphery of the heat radiator. The plastic cement coated LED lamp has the advantages that the LED power supply plate is isolated from the heat radiator, the temperature of the LED power supply plate is reduced, and the service life of an electrolytic capacitor is ensured. In addition, the covering plastic cement is arranged on the outer periphery of the heat radiator, the metal of the heat radiator cannot be exposed at outside capable of being touched by hands, and the plastic cement coated LED lamp is particularly suitable for the electric insulation and thermal isolation of high-voltage LED application lamps.

Description

Coat plastic cement type LED light fixture

Technical field

The utility model belongs to the LED lighting technical field, particularly relates to a kind of coating plastic cement type LED light fixture.

Background technology

The not only energy-saving and environmental protection of LED lighting engineering, also have the life-span long, volume is little, safe, photochromic characteristics such as abundant, easy to control.The LED illumination is the key core technology of little by little having grasped few in number, has market demand prospect, possesses the strategic new industry that the resource energy consumption is low, drive characteristics such as coefficient is big, job opportunity is many, comprehensive benefit is good.It has not only brought the revolution of another lighting source after incandescent lamp, fluorescent lamp on the illumination history, and is the important channel of energy-saving and emission-reduction, will bring into play more importantly effect to the development low-carbon economy.Therefore, the relevant application product of LED illumination is all done one's utmost to develop by each manufacturer.

But there is a very big heat radiation difficult problem in the LED lamp.Heat dissipation problem is the bottleneck of LED lamp in illumination application always, is never effectively solved.LED has relatively high expectations to heat dissipation technology, and the temperature of LED wick sheet sharply rises when the effect of radiator is bad, can produce light decay very soon, even damages led chip.The temperature of the high more chip of the heat flow density of led chip rises fast more, has only the heat dissipation technology that solves LED, delays the light decay of LED to greatest extent, just can embody long advantage of life-span, makes LED become real in the large-area applications of indoor and outdoor lighting.

The heat radiation of current LED lamp or module is adopted die-casting die and section bar heronsbill radiator mostly or is adopted aluminium ingot Digit Control Machine Tool processing heat radiator and hot pipe technique.This die-casting die radiator heat-dissipation weak effect, volume is also bigger.The geometry of heronsbill structure radiator is fixing, and fin density is little, is difficult for heat radiation, is prone to dust stratification dirt in the fin.

Radiator shell in present most of LED light fixture is exposed in the air, because this radiator heating for electric insulation safety, needs spreader surface to coat plastic cement.

Driving power on the existing LED light fixture is contained in the radiator the inside, does not carry out insulation and heat insulating construction measure, and causes that the heat of LED driving power itself has increased, and just reduced the service life of this power supply.Produce simultaneously the raising of the temperature rise of radiator again, cause the temperature rising of LED lamp and produce serious light decay.

The utility model content

For solving heat dissipation problem and the radiating effect of Section Bar Heat Sinks and the electric insulation and the adiabatic problem of this radiator of LED driving power, the utility model provides a kind of coating plastic cement type LED light fixture.

The utility model solves the technical scheme that its technical problem adopted: comprise metallic lamp holder, insulation crust, LED power panel, thermal insulation board, coating plastic cement, radiator, heat transfer plate and LED aluminium base.When forming the LED light fixture, with the LED aluminium base that is fixed with the LED lamp with bolt on the aluminium base fixing hole of heat transfer plate.

The technical characterictic of the utility model is: heat transfer plate is connected with the tight fit mode with the recessed position of radiator, on radiator, is provided with thermal insulation board, is provided with the coating plastic cement in the outside of radiator.

Below thermal insulation board, be connected with several unsettled pillars; Entangle above the coating plastic cement of radiator, be provided with the plastic cement fixing hole, be enclosed in plastic cement fixing hole the inside to unsettled pillar; And be positioned over radiator above, be fixed in unsettled pillar above the screw hole with bolt.

The LED power panel is surrounded by metallic lamp holder, insulation crust and thermal insulation board, and the fixing hole of insulation crust is connected with screw or bayonet socket with thermal insulation board.

The fairlead cross section that also has the thermal insulation board bottom surface to connect, through the perforation of the fairlead on the radiator, again should be concordant with the plane of LED aluminium base through the wire hole that has on the heat transfer plate, and seal heat transfer plate by lampshade.

The LED power panel is electrically connected with metallic lamp holder, and the fairlead that the direct current output electric wire process of LED power panel is connected with the thermal insulation board bottom surface and the wire hole of heat transfer plate are electrically connected with the LED aluminium base; The heat of LED power panel distributes through thermovent on the insulation crust or metallic lamp holder.

Radiator comprises hollow heat carrier, is provided with crossbeam heat carrier and screw hole in the inboard of hollow heat carrier, concentrates the junction to have the fairlead perforation at the crossbeam heat carrier; Be arranged with fin, fin and fin in the outside of hollow heat carrier.

Fin comprises the fin group that several are evenly distributed; Each fin group comprises first fin and second fin that laterally arranges; Fin is arranged between adjacent two fin groups; Fin is separately positioned on first fin, second fin, and fin, fin and fin between adjacent two fin groups are arranged in parallel.

LED light fixture specification kind of light fixture when practical application is a lot, so the outside geomery of hollow radiator can be changed, so that the light fixture of different size can be selected suitable shape for use, improves radiating effect.

The beneficial effect of the utility model is; Owing to be connected with the tight fit mode at the recessed position of heat transfer plate and radiator; Reduced the thermal resistance of heat transfer plate; The heat of LED aluminium base is conducted on the radiator through heat transfer plate very soon, and the fin on radiator, fin and fin and surrounding air are carried out heat loss through convection, thereby reduce the temperature rise that the LED lamp produces;

On radiator, be provided with thermal insulation board, LED power panel and radiator heat are isolated and are independent of each other thus, guarantee the security performance of light fixture; And the temperature of reduction LED power panel; Improve its functional reliability, prolong the service life in electronic devices and components life-span, particularly electrolytic capacitor;

Owing to isolate power line and radiator metal with fairlead; Be provided with the coating plastic cement in the radiator outside again; The radiator metal can not be exposed to the outside that hand contacts; The worry that does not have electric shock when therefore light fixture being installed with use in touch thermal phenomenon, and the electric insulation that is particularly suitable for high voltage LED application luminaire is isolated with heat.

Secondly advantage is, this radiator adopts the good aluminium material of thermal conductivity, is integral with extrusion process, and can cuts use, compact conformation.Also can adopt the good material of thermal conductivity, be integral, reduce processing cost with extrusion process.

Description of drawings

Fig. 1 is the section of structure of an embodiment of the utility model;

Fig. 2 is the upward view of Fig. 1 embodiment;

Fig. 3 is the structural representation that coats plastic cement among Fig. 1;

Fig. 4 is the structure vertical view of radiator among Fig. 1;

Fig. 5 is the structure upward view of radiator among Fig. 1;

Fig. 6 is that the B-B of Fig. 5 radiator is to cutaway view;

Fig. 7 is that the A-A of Fig. 5 radiator is to cutaway view;

1. metallic lamp holders among the figure, 2. insulation crust, 201. thermovents, 202. fixing holes, 3.LED power panel, 4. thermal insulation board, 401. unsettled pillars; 402. fairlead 5. coats plastic cement, 501. plastic cement fixing holes, 6. radiator, 601 screw holes, the perforation of 602. fairleads; 7. heat transfer plate, 701. aluminium base fixing holes, 702. wire holes, 8.LED aluminium base, 9. lampshade, 10. hollow heat carrier; 11. the crossbeam heat carrier, 12. fins, 1201. fins, 13. fins, 1301. fins, 14. fin.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done further detailed explanation.

The utility model is contained in inside the radiator for very big heat radiation difficult problem overcoming that existing LED light fixture never effectively solved and LED driving power and electronic devices and components receive warming-up effect and electric insulation safety problem; The utility model provides a kind of coating plastic cement type LED light fixture; The heat radiation of this LED light fixture and heat-proof device have been taked the rational structure measure, and electric insulation and adiabatic problem are effectively solved.

By Fig. 1～shown in Figure 7, the utility model comprises metallic lamp holder 1, insulation crust 2, LED power panel 3, thermal insulation board 4, coats plastic cement 5, radiator 6, heat transfer plate 7 and LED aluminium base 8.When forming the LED light fixture; The LED lamp of on LED aluminium base 8, burn-oning earlier and choosing; Coated with thermally conductive silicone grease on the bottom surface of heat transfer plate 7 is placed on LED aluminium base 8 above the heat-conducting silicone grease then, with bolt on aluminium base fixing hole 701; Reduce thermal contact resistance with this technology, make the heat of LED aluminium base be convenient to pass to rapidly on the heat transfer plate 7.

In order further to reduce the thermal contact resistance between heat transfer plate 7 and the radiator 6, the recessed position of radiator 6 connects with the tight fit mode.On radiator 6, be provided with thermal insulation board 4, be connected with several unsettled pillars 401 below the thermal insulation board 4, regulate the heat insulation distance between thermal insulation board 4 and the radiator 6 through these unsettled pillar 401 height.

Because the LED light fixture uses the heating of civil power and radiator; Need the radiator metal can not be exposed to the outside that hand contacts; The worry that mustn't have electric shock when therefore light fixture being installed with use in touch thermal phenomenon, be provided with in the outside of radiator 6 and coat plastic cement 5, and be fixed on radiator 6 above.Be enclosed in plastic cement fixing hole 501 the insides to the unsettled pillars 401 below the thermal insulation board 4, then with bolt unsettled pillar 401 be fixed in screw hole 601 above.

Surround LED power panel 3 by metallic lamp holder 1, insulation crust 2 and thermal insulation board 4, and utilize the fixing hole 202 of insulation crust 2 to be connected with screw or bayonet socket with thermal insulation board 4.LED power panel 3 is electrically connected with metallic lamp holder 1, the direct current output electric wire of LED power panel 3, and fairlead 402 and wire hole 702 through thermal insulation board 4 bottom surfaces connect are electrically connected with LED aluminium base 8; The heat of LED power panel 3 distributes through thermovent 201 or the metallic lamp holder 1 that insulation crust 2 is provided with in addition.

The cross section that also has the fairlead 402 that connects in thermal insulation board 4 bottom surfaces; Fairlead through radiator 6 is provided with bores a hole 602; Again through the wire hole 702 on the heat transfer plate 7, with the plane of LED aluminium base 8 should be concordant, and by lampshade 9 sealing heat transfer plates 7; In order to avoid prevent the dust land, solved the dazzling problem of dazzle when the LED lamp is luminous simultaneously.

Radiator comprises hollow heat carrier 10, is provided with crossbeam heat carrier 11 and screw hole 601 in the inboard of the utility model hollow core heat carrier 10, concentrates the junction to leave fairlead perforation 602 at crossbeam heat carrier 11;

Outside at hollow heat carrier 10 is arranged with fin; Fin comprises six evenly distributed fin groups; Each fin group comprises first fin 12 and second fin 13 that laterally arranges, and is provided with nine fin that are arranged in parallel, 14, the first fins 12 between adjacent two fin groups and is provided with fin 1201; Second fin 13 is provided with fin 1301, and fin 14, fin 1201 and fin 1301 between adjacent two fin groups are arranged in parallel.

Claims

1. one kind coats plastic cement type LED light fixture; Comprise metallic lamp holder, insulation crust, LED power panel, thermal insulation board, coating plastic cement, radiator, heat transfer plate and LED aluminium base, when forming the LED light fixture, with the LED aluminium base that is fixed with the LED lamp; With bolt above the aluminium base fixing hole of heat transfer plate; It is characterized in that: heat transfer plate is connected with the tight fit mode with the recessed position of radiator, on radiator, is provided with thermal insulation board, is provided with the coating plastic cement in the outside of radiator.

2. coating plastic cement type LED light fixture according to claim 1; It is characterized in that: be connected with several unsettled pillars below the thermal insulation board; Entangle above the coating plastic cement of radiator, be provided with the plastic cement fixing hole, be enclosed in plastic cement fixing hole the inside to unsettled pillar; And be positioned over radiator above, be fixed in unsettled pillar above the screw hole with bolt.

3. coating plastic cement type LED light fixture according to claim 1 is characterized in that: the LED power panel is surrounded by metallic lamp holder, insulation crust and thermal insulation board, and the fixing hole of insulation crust is connected with screw or bayonet socket with thermal insulation board.

4. coating plastic cement type LED light fixture according to claim 1; It is characterized in that: the fairlead cross section that the thermal insulation board bottom surface connects, through the perforation of the fairlead on the radiator, wire hole again through having on the heat transfer plate; Should be concordant with the plane of LED aluminium base, and seal heat transfer plate by lampshade.

5. coating plastic cement type LED light fixture according to claim 1; It is characterized in that: the LED power panel is electrically connected with metallic lamp holder; The direct current output electric wire of LED power panel, the fairlead that process is connected with the thermal insulation board bottom surface and the wire hole of heat transfer plate are electrically connected with the LED aluminium base; The heat of LED power panel distributes through thermovent on the insulation crust or metallic lamp holder.

6. coating plastic cement type LED light fixture according to claim 1, it is characterized in that: radiator comprises hollow heat carrier, the inboard of hollow heat carrier is provided with crossbeam heat carrier and screw hole, concentrates the junction to have the fairlead perforation at the crossbeam heat carrier; Be arranged with fin, fin and fin in the outside of hollow heat carrier.

7. coating plastic cement type LED light fixture according to claim 6; It is characterized in that: fin comprises the fin group that several are evenly distributed; Each fin group comprises first fin and second fin that laterally arranges; Fin is arranged between adjacent two fin groups, and fin is separately positioned on first fin, second fin, and fin, fin and fin between adjacent two fin groups are arranged in parallel.