CN105276436A

CN105276436A - LED spotlight structure

Info

Publication number: CN105276436A
Application number: CN201410278153.2A
Authority: CN
Inventors: 甄国富
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-20
Filing date: 2014-06-20
Publication date: 2016-01-27

Abstract

The invention provides an LED spotlight structure comprising a housing, an LED lighting assembly, a reflection cup, and a heat radiation lamp holder fixed with the housing; the reflection cup is fixed in the housing; the LED lighting assembly is fixed on the end face of the heat radiation lamp holder; the end face of the heat radiation lamp holder extend outwards so as to form a group of concentric heat radiation fins; the group of concentric heat radiation fins is provided with a cross type open slot axially penetrating all concentric heat radiation fins. The beneficial effects are that the LED spotlight structure is good in heat radiation effect.

Description

LED spotlight structure

Technical field

The present invention relates to lighting technical field, relate to the heat radiation structure design of LED particularly.

Background technology

Existing LED particularly LED spotlight, owing to adopting solid luminescence diode to be the illumination mode of light source, life-span depends primarily on solid LED light source and drives radiator portion, and LED spotlight operationally most electric energy conversion has become heat energy, and the electric energy conversion of small part is luminous energy, due to LED chip operationally, inversely, temperature is higher for the environment temperature of itself and light emission rate, and light emission rate is lower, when temperature reaches LED chip maximum operation (service) temperature, LED can break down.Temperature has direct relation to life-span of LED, light decay, color temperature shift.Therefore, the design and fabrication of radiator has great importance in LED spotlight, and the performance of radiator directly will affect all many-sides such as volume weight, security, service life of LED spotlight.

The heat radiation major part of existing high-power LED spotlight adopts dull and stereotyped extrusion section bar electronic heat sink or adopts aluminium ingot Digit Control Machine Tool processing heat radiation and hot pipe technique, and the radiator volume of similar structures is large, with LED spotlight structure matching poor performance; Or hot pipe technique cost is high, easily piles up dust in fin, reduce radiating efficiency.Therefore, prior art needs further to improve and develop.

Summary of the invention

For this reason, technical problem to be solved by this invention is: provide a kind of heat dispersion better LED spotlight structure.

So, the invention provides following technical scheme: a kind of LED spotlight structure, comprise shell, LED luminescence component, reflector and cooling lamp holder, described cooling lamp holder is fixedly connected with described shell, described reflector is fixed in described shell, described LED luminescence component is fixed on the end face of described cooling lamp holder, and the end face of described cooling lamp holder is outward extended with one group of concentric radiating fin, and one group of described concentric radiating fin is provided with the cross-shaped aperture groove of axially through all concentric radiating fins.

Meanwhile, described shell has one group to dispel the heat protruding in the arranged outside of the position near described cooling lamp holder, is provided with the air vent that one group of radial direction is through between described heat radiation projection.

Particularly, described LED luminescence component is fixed by screws in the end face of described cooling lamp holder.

Particularly, described shell is hollow cylinder.

Particularly, the outmost turns radiating fin of described cooling lamp holder is provided with radiated rib.

Particularly, described cooling lamp holder and described shell are threaded connection.

Particularly, described reflector is fixed in described shell by gland.

Preferably, the end face center of described cooling lamp holder is provided with hollow binding post, and the upper end of described hollow binding post is provided with connector socket.

Preferably, described heat dissipation base adopts aluminum base material.

Preferably, the inner surface of described reflector is the spherical surface of revolution, and outer surface is made up of the spherical surface of revolution and the face of cylinder, and described LED spotlight structure has multiple removable reflector, and the inner surface radian of described multiple reflector is different.

LED spotlight structure of the present invention, the end face of cooling lamp holder is outward extended with one group of concentric radiating fin, one group of described concentric radiating fin is provided with the cross-shaped aperture groove of axially through all concentric radiating fins, simultaneously, described shell has one group to dispel the heat protruding in the arranged outside of the position near described cooling lamp holder, the air vent that one group of radial direction is through is provided with between described heat radiation projection, the concentric radiating fin of heat one tunnel that this structural design makes LED luminescence component produce on cooling lamp holder and cross-shaped aperture groove distribute, concentric radiating fin is due to as a whole with cooling lamp holder end face, heat conduction efficiency is very high, on the other hand, the structural design of concentric radiating fin and cross-shaped aperture groove can form air-swirl and cross-ventilation simultaneously and carry out heat and distribute, radiating effect is optimized, another road is distributed through shell, and the design of heat radiation projection can increase conduction surface, the design energy increase air convection current of air vent, make integral heat sink better effects if of the present invention.

Further, heat dissipation base adopts aluminum base material, and by arranging radiated rib on the outmost turns radiating fin of cooling lamp holder, can improve radiating effect further.

Accompanying drawing explanation

Fig. 1 is the overall structure figure of embodiment;

Fig. 2 is the structure top view of embodiment;

Fig. 3 is the A-A profile of Fig. 1;

Fig. 4 is the structure sectional view of embodiment terminal portions.

In figure, gland 1, flange seat 2, dog screw 3, shell 4, reflector 5, cooling lamp holder 6, radiated rib 6-1, air vent 7, dispel the heat protruding 7-1, LED luminescence component 8, screw 9, binding post 10, connector socket 10-1.

Detailed description of the invention

Below, with specific embodiments and the drawings describes the present invention.

A kind of LED spotlight structure, its overall structure figure is referring to accompanying drawing 1, structure top view is referring to accompanying drawing 2, Fig. 3 is the A-A profile of Fig. 1, comprise gland 1, shell 4, reflector 5, cooling lamp holder 6 and mounting-fixing base, shell 4 and cooling lamp holder 6 are cylinder, shell 4 upper end barrel is provided with one group of radial through air vent 7 and the protruding 7-1 of heat radiation, as required, the quantity of air vent 7 can do adaptive adjustment, the present embodiment preferably 8, the inner surface of reflector 5 is the spherical surface of revolution, outer surface is made up of the spherical surface of revolution and the face of cylinder, reflector 5 is arranged in shell 4, the shoulder of reflector 5 is spacing by the inner face of shell 4, locked by gland 1, the end face of cooling lamp holder 6 is connected with LED luminescence component 8 through screw 9, the end face of cooling lamp holder 6 is outward extended with one group of concentric radiating fin, the concentric radiating fin of this group is provided with the cross-shaped aperture groove of axially through all concentric radiating fins, and the outmost turns radiating fin of cooling lamp holder 6 is provided with radiated rib 6-1, the lampshade assembly that reflector 5 forms with shell 4 is fixedly connected with cooling lamp holder 6 through screw thread, and shell 4 is connected with flange seat 2 through dog screw 3 by locating hole.

For ease of connecting power line, the present embodiment also provides a kind of preferred constructive form of cooling lamp holder 6, and namely cooling lamp holder 6 is provided with hollow binding post 10, and hollow binding post 10 is provided with connector socket 10-1, and the structure sectional view of terminal portions is referring to accompanying drawing 4.

The present embodiment in use, first flange seat 2 is fixed on decoration element, then, LED luminescence component 8 is arranged on cooling lamp holder 6 through screw 9, the lampshade assembly form reflector 5 and shell 4 and cooling lamp holder 6 are threaded connection integral, are connected through dog screw 3 finally by the locating hole on the lower end cylindrical of shell 4 with flange seat 2.Owing to there is certain gap between the cylindrical of shell 4 and flange seat 2 endoporus, so, lampshade assembly can around the certain angle of the central rotation of screw 9, and the cross-ventilation that heat one tunnel that LED spotlight produces produces near one group of cooling lamp holder position radial through ventilating opening 7 through shell 4 upper end distributes; The cross-shaped aperture groove formation eddy current of the concentric radiating fin on the cooling lamp holder 6 that another Lu Jingyu LED luminescence component 8 connects and through concentric radiating fin and convection current distribute; The radiating fin of cooling lamp holder 6 outmost turns is provided with radiated rib 6-1, and said structure designs, and makes LED spotlight be in good heat dissipation environment, improves its luminous efficiency, extend service life.Reflector 5 is arranged in shell 4, and the shoulder of reflector 5 is spacing by the inner face of shell 4, is locked by gland 1.

As preferred embodiment, LED spotlight structure can have multiple removable reflector, and the inner surface radian of multiple reflector is different.The luminous plaque of multiple different arc shape can unload lower cover 1 as required and change.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1.LED shot-light structure, comprise shell, LED luminescence component, reflector and cooling lamp holder, described cooling lamp holder is fixedly connected with described shell, described reflector is fixed in described shell, it is characterized in that: described LED luminescence component is fixed on the end face of described cooling lamp holder, the end face of described cooling lamp holder is outward extended with one group of concentric radiating fin, and one group of described concentric radiating fin is provided with the cross-shaped aperture groove of axially through all concentric radiating fins.

2. LED spotlight structure according to claim 1, is characterized in that: described shell has one group to dispel the heat protruding in the arranged outside of the position near described cooling lamp holder, is provided with the air vent that one group of radial direction is through between described heat radiation projection.

3. LED spotlight structure according to claim 2, is characterized in that: described LED luminescence component is fixed by screws in the end face of described cooling lamp holder.

4. LED spotlight structure according to claim 2, is characterized in that: described shell is hollow cylinder.

5. LED spotlight structure according to claim 2, is characterized in that: the outmost turns radiating fin of described cooling lamp holder is provided with radiated rib.

6. LED spotlight structure according to claim 2, is characterized in that: described cooling lamp holder and described shell are threaded connection.

7. LED spotlight structure according to claim 2, is characterized in that: described reflector is fixed in described shell by gland.

8. LED spotlight structure according to claim 2, is characterized in that: the end face center of described cooling lamp holder is provided with hollow binding post, and the upper end of described hollow binding post is provided with connector socket.

9., according to the arbitrary described LED spotlight structure of claim 1 to 8, it is characterized in that: described heat dissipation base adopts aluminum base material.

10. according to the arbitrary described LED spotlight structure of claim 1 to 8, it is characterized in that: the inner surface of described reflector is the spherical surface of revolution, outer surface is made up of the spherical surface of revolution and the face of cylinder, described LED spotlight structure has multiple removable reflector, and the inner surface radian of described multiple reflector is different.