CN212673030U

CN212673030U - LED ceiling spotlight

Info

Publication number: CN212673030U
Application number: CN202021413378.1U
Authority: CN
Inventors: 何婵坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-03-09
Anticipated expiration: 2030-07-17

Abstract

The utility model discloses a LED ceiling spotlight, which comprises a face ring provided with a spring fixing device, a light-transmitting diffusion plate connected with the face ring, a rear cover connected with the face ring and used for heat dissipation, and an LED light-emitting plate arranged on the inner surface of the rear cover; the surface ring, the diffusion plate and the rear cover form an LED mounting cavity, and the LED light-emitting plate is positioned in the LED mounting cavity; the rear cover is of a cylindrical structure and comprises a base connected with the face ring and a chimney heat dissipation structure; chimney heat radiation structure is including the heat dissipation part of locating the base top surface and the cylindrical louvre of a plurality of that sets up along vertical direction, and the even distribution of the cylindrical louvre of a plurality of just runs through the heat dissipation part on the heat dissipation part. The utility model adopts the structure, the processing technology is simple, and the production can be realized by the die-casting or punching technology; the chimney heat dissipation structure has high-efficiency heat dissipation performance; the heat can be effectively diffused to the environment from the radiator, and the radiating problem of the LED lamp is solved.

Description

LED ceiling spotlight

Technical Field

The utility model relates to a LED technical field, concretely relates to LED smallpox shot-light.

Background

An LED (Light Emitting Diode) is a semiconductor solid-state Light Emitting device, which uses a solid-state semiconductor chip as a Light Emitting material, and when a forward voltage is applied across two terminals, carriers in a semiconductor are recombined to cause photon emission and generate Light. The LED ceiling spotlight adopts the LED as a light source, and has the advantages of high efficiency, energy conservation, long service life, good color rendering property and the like.

The LED ceiling spotlight is mainly used for key illumination, highlights ornaments to be represented, is used for hanging pictures and the like, and is generally arranged on a ceiling, a gallery, a cabinet and the like. In the existing LED ceiling spotlight, the LED has only 20-30% of electro-optic conversion efficiency, and the rest of electric energy is completely converted into heat. If the heat cannot be effectively dissipated, the junction temperature is too high, and the lamp has the problems of short service life, reduced lighting effect, color temperature deviation and the like. And the existing heat radiation structure processing technology is complex, which is not beneficial to the production efficiency. Meanwhile, because the LED light source is characterized by directional light emission, light rays are concentrated, and illumination unevenness in an illumination range can be caused, so that dazzling glare is generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to disclose a LED smallpox shot-light, solved current LED smallpox shot-light and produced a large amount of heat energy, the radiating effect is not good, and the problem that current heat radiation structure processing technology is complicated has further solved the problem that LED produced the glare.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an LED ceiling spotlight comprises a face ring provided with a spring fixing device, a light-transmitting diffusion plate connected with the face ring, a rear cover connected with the face ring and used for heat dissipation, and an LED light-emitting plate arranged on the inner surface of the rear cover; the surface ring, the diffusion plate and the rear cover form an LED mounting cavity, and the LED light-emitting plate is positioned in the LED mounting cavity; the rear cover is of a cylindrical structure and comprises a base connected with the face ring and a chimney heat dissipation structure; chimney heat radiation structure is including the radiating part and the columniform louvre of a plurality of locating the base top surface, and the louvre sets up along vertical direction, and the even distribution of the columniform louvre of a plurality of just runs through the radiating part on the radiating part.

Further, the aperture D of the cylindrical heat dissipation hole is larger than or equal to 6 mm.

Further, the height H of the chimney heat dissipation structure is larger than or equal to 40 mm.

Furthermore, a plurality of air diversion holes are uniformly distributed on the edge of the side surface of the heat dissipation part; the air guide holes penetrate through the cylindrical heat dissipation holes along the horizontal direction.

Further, the base and the chimney heat dissipation structure are of an integral structure.

Further, the LED light emitting panel includes LED elements and a secondary optical lens covering the LED elements.

Further, the secondary optical lens comprises an incident surface, a first arc-shaped emergent surface and a second arc-shaped emergent surface which are matched with the LED element; the inner end of the first arc line emergent surface and the inner end of the second arc line emergent surface are connected below the incident surface; the outer end of the first arc line emergent surface is connected with one end of the incident surface, and the outer end of the second arc line emergent surface is connected with the other end of the incident surface.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model adopts the chimney heat dissipation structure, has simple processing technology, and can be simply realized through the die-casting or punching technology in production; the chimney heat dissipation structure has high-efficiency heat dissipation performance. The heat can be effectively diffused to the environment from the radiator, and the radiating problem of the LED lamp is solved. And the chimney heat dissipation structure has the advantages of high hardness, high strength, high surface area/volume ratio and the like. The adopted secondary optical lens realizes large-angle irradiation, and has no halation and glare.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic front sectional view of an embodiment of an LED ceiling spotlight according to the present invention;

FIG. 2 is a schematic top view of the rear cover of FIG. 1;

fig. 3 is a schematic front sectional view of the secondary optical lens of fig. 1.

In the figure, the face ring 1; a spring fixing device 11; a diffusion plate 2; a rear cover 3; a base 31; a chimney heat dissipation structure 32; a heat dissipation portion 321; a cylindrical heat dissipation hole 322; air deflector holes 323; an LED light emitting panel 4; an aluminum substrate 41; a PCB board 42; an LED element 43; a secondary optical lens 44; an incident surface 441; first arc exit surface 442; second arc exit surface 443; and an LED mounting cavity 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An LED ceiling spotlight according to the embodiment shown in fig. 1 to 3 comprises a surface ring 1 provided with a spring fixing device 11, a light-transmitting diffusion plate 2 connected with the surface ring 1, a rear cover 3 connected with the surface ring 1 and used for heat dissipation, and an LED light board 4 arranged on the inner surface of the rear cover 3. The face ring 1, the diffusion plate 2 and the rear cover 3 form an LED mounting cavity 5, and the LED lighting board 4 is located in the LED mounting cavity 5. The rear cover 3 is a cylindrical structure, and the rear cover 3 includes a base 31 connected with the face ring 1 and a chimney heat dissipation structure 32. The chimney heat dissipation structure comprises a heat dissipation part 321 arranged on the top surface of the base 31 and a plurality of cylindrical heat dissipation holes 322 arranged along the vertical direction, wherein the plurality of cylindrical heat dissipation holes 322 are uniformly distributed on the heat dissipation part 321 and penetrate through the heat dissipation part 321. A plurality of air guide holes 323 are uniformly distributed on the side edge of the heat dissipation portion 321. The air guide holes 323 penetrate through the cylindrical heat dissipation holes 322 along the horizontal direction, so that the heat dissipation efficiency is further improved, and the heat dissipation effect is good. The aperture D of the cylindrical heat dissipation hole 322 is greater than or equal to 6 mm. The height H of the chimney heat dissipation structure 32 is greater than or equal to 40mm, and the heat dissipation effect of the structure is optimal.

The base 31 and the chimney heat dissipation structure 32 of the present embodiment are an integral structure; the processing technology of the cylindrical heat dissipation hole 322 is simple, and the processing technology can be simply realized through a die-casting or punching technology in production; the chimney heat dissipation structure 32 has high heat dissipation performance. The heat can be effectively diffused to the environment from the radiator, and the heat dissipation problem of the LED ceiling spotlight is solved; and the chimney heat dissipation structure 32 has the advantages of high hardness, high strength, high surface area/volume ratio and the like, and the heat dissipation effect is good.

The LED lighting panel 4 includes an aluminum substrate 41 for heat conduction, a PCB 42 provided on the aluminum substrate 41, LED elements 43 connected to the PCB 42, and secondary optical lenses 44 covering the LED elements 43. As shown in fig. 3, the secondary optical lens 44 includes an incident surface 441, a first arc exit surface 442, and a second arc exit surface 443 that cooperate with the LED element 43. The inner end of first arc exit surface 442 and the inner end of second arc exit surface 443 are connected below the entrance surface; the outer end of the first arc exit surface 442 is connected to one end 441 of the incident surface, and the outer end of the second arc exit surface 443 is connected to the other end of the incident surface 441. The present embodiment adopts the structure of the secondary optical lens 44 to realize large-angle illumination without halation and glare.

Other structures of this embodiment are seen in the prior art.

The present invention is not limited to the above embodiment, and various modifications and variations of the present invention are also intended to be included within the scope of the claims and the equivalent technical scope of the present invention if they do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a LED smallpox shot-light, characterized by: the LED lamp comprises a surface ring provided with a spring fixing device, a light-transmitting diffusion plate connected with the surface ring, a rear cover connected with the surface ring and used for heat dissipation, and an LED light-emitting plate arranged on the inner surface of the rear cover; the surface ring, the diffusion plate and the rear cover form an LED mounting cavity, and the LED light-emitting plate is positioned in the LED mounting cavity; the rear cover is of a cylindrical structure and comprises a base connected with the face ring and a chimney heat dissipation structure; chimney heat radiation structure is including the radiating part and the columniform louvre of a plurality of locating the base top surface, and the louvre sets up along vertical direction, and the even distribution of the columniform louvre of a plurality of just runs through the radiating part on the radiating part.

2. The LED ceiling spotlight of claim 1, wherein: the aperture D of the cylindrical heat dissipation hole is larger than or equal to 6 mm.

3. The LED ceiling spotlight of claim 1, wherein: the height H of the chimney heat dissipation structure is larger than or equal to 40 mm.

4. An LED ceiling spotlight according to any one of claims 1 to 3, wherein: the edge of the side surface of the heat dissipation part is also uniformly distributed with a plurality of air diversion holes; the air guide holes penetrate through the cylindrical heat dissipation holes along the horizontal direction.

5. The LED ceiling spotlight of claim 1, wherein: the base and the chimney heat dissipation structure are of an integral structure.

6. An LED ceiling spotlight according to any one of claims 1 to 3, wherein: the LED light emitting panel includes LED elements and a secondary optical lens covering the LED elements.

7. The LED ceiling spotlight of claim 6, wherein: the secondary optical lens comprises an incident surface, a first arc-shaped emergent surface and a second arc-shaped emergent surface which are matched with the LED element; the inner end of the first arc line emergent surface and the inner end of the second arc line emergent surface are connected below the incident surface; the outer end of the first arc line emergent surface is connected with one end of the incident surface, and the outer end of the second arc line emergent surface is connected with the other end of the incident surface.