CN203099580U

CN203099580U - Light emitting diode (LED) down lamp

Info

Publication number: CN203099580U
Application number: CN2012207369352U
Authority: CN
Inventors: 赵利民; 赵晓亮
Original assignee: DONGGUAN SINOINNOVO SEMICONDUCTOR LIGHTING Co Ltd
Current assignee: DONGGUAN SINOINNOVO SEMICONDUCTOR LIGHTING Co Ltd
Priority date: 2012-12-28
Filing date: 2012-12-28
Publication date: 2013-07-31
Anticipated expiration: 2022-12-28

Abstract

The utility model discloses a light emitting diode (LED) down lamp. The LED down lamp is simple in assembling and comprises a shell. An inward fixing pillar is arranged at the inner bottom of the shell, a bayonet is formed in a light-emitting port in the top end of the shell, and a radiator is arranged at the inner bottom of the shell and arranged on the fixing pillar of the shell in a suspended mode. An LED integrated light source is arranged on the radiator and provided with a reflection cup. An anti-dazzling cover is arranged on the reflection cup and fixed on the shell in a rotating mode through the bayonet of the shell. The LED down lamp is especially suitable for being installed on a ceiling, the reflection cup is of a horn shape, LED residual light can be reflected out, and then light-emitting efficiency is greatly improved.

Description

A kind of LED Down lamp

Technical field

The utility model relates to a kind of Down lamp, particularly a kind of good heat dissipation, light efficiency height, assembling simple LED Down lamp.

Background technology

The LED Down lamp is to use the New LED lighting source to improve development product on traditional Down lamp basis, has the following advantages with traditional Down lamp contrast: energy-conservation, low-carbon (LC), longevity, colour rendering is good, response speed is fast.The design of LED Down lamp is more attractive in appearance light and handy, and it is unified and perfect to reach the integral body that keeps building decoration during installation, does not destroy the setting of light fixture, and light source is hidden building decoration inside and do not exposed, free from glare, and people's visual effect is soft, even.

Down lamp is to be embedded on the ceiling, and because of its passive heat radiation device places the environment of ventilation condition difference for a long time, the heat that LED is produced can not in time distribute, and causes the LED junction temperature higher, and the LED light decay is serious, the lost of life.

At present, consider the pollution of the dazzle of LED Down lamp generation to environment, big city adopts transmitance frosted diffuser on the low side to carry out light and handles, the surplus light loss of adding part is in Down lamp inside, therefore, whole light efficiency is not high, fails to embody the energy-conservation advantage of LED itself.

The utility model content

The purpose of this utility model is in order to solve weak point of the prior art, a kind of active heat loss through radiation to be provided, secondary optics processing, assembling simple LED Down lamp.

For achieving the above object, the utility model adopts following scheme:

A kind of LED Down lamp, include shell, shell is curved cylindric, and the shell inner bottom part is provided with inside fixed leg, and shell top light-emitting window is provided with bayonet socket, the shell inner bottom part is provided with radiator, radiator is unsettled to be arranged on the fixed leg of shell, and radiator is provided with LED integrated optical source, and LED integrated optical source is provided with reflector, reflector is provided with glare filter, and glare filter is fixed on the shell by the bayonet socket rotation of shell.

[0007]Among some embodiment, described case body periphery has several cross-ventilation mouths therein, and the cross-ventilation mouth is a undercut formula strip through-hole, and bayonet socket is distributed in shell light-emitting window place with 120 °.

Among some embodiment, fixed leg is inwardly stretched out in described shell bottom surface therein, and fixed leg is a cylinder.

Therein among some embodiment, described shell is with metal, polycarbonate or acrylic; LED integrated optical source substrate is aluminium base, copper base, ceramic substrate or graphite substrate.

Among some embodiment, described LED integrated optical source is fixed on the radiator by screw, is provided with heat-conducting silicone grease between LED integrated optical source and the radiator therein.

Among some embodiment, described radiator is made of soaking plate and radiating fin therein, and radiating fin is the number of plate-shaped body, and radiating fin is drilled with fixed via equidistantly vertically to be evenly distributed on the soaking plate on the soaking plate.

Therein among some embodiment, the fixed leg of the fixed via tight fit shell of described radiator, radiator is a graphite material, it is cylindric that radiator is.

Among some embodiment, described reflector is horn-like therein, and the reflector inwall is coated with specular material.

Among some embodiment, described reflector is a specular aluminium therein, or plated film is finished on plastics, polycarbonate.

The utility model adopts the graphite material of heat loss through radiation as radiating mode, in airtight environment, can bigger raising change heat-sinking capability, be particularly suitable for being installed in the LED Down lamp on the ceiling, the case body periphery has some bar shaped undercut through holes, form inlet and outlet, improve cross-ventilation, and prevent that effectively dust from entering lamp interior and reducing heat-sinking capability.The utility model adopts specular material to handle as secondary optics, and it is horn-like that reflector is, and the surplus light of LED is reflected away, and improves light extraction efficiency greatly.

Description of drawings

Fig. 1 is the exploded sketch of the utility model embodiment;

Fig. 2 is the schematic perspective view of the utility model embodiment;

Fig. 3 is the schematic top plan view of the utility model embodiment;

Fig. 4 is the A-A generalized section of Fig. 3.

Description of reference numerals is as follows:

Glare filter 1, reflector 2, LED integrated optical source 3, radiator 4, soaking plate 42, radiating fin 41, fixed via 43, shell 5, fixed leg 51, cross-ventilation mouth 52, bayonet socket 53.

The specific embodiment

Be concrete order ground, the function that further to understand feature of the present utility model, technological means and be reached, resolve advantage of the present utility model and spirit, by by the following examples the utility model being further elaborated.

The utility model provides a kind of LED Down lamp, as shown in Figures 1 to 4, this LED Down lamp comprises shell 5, radiator 4, LED integrated optical source 3, reflector 2, glare filter 1, shell 5 is provided with fixed leg 51, cross-ventilation mouth 52 and bayonet socket 53, and radiator 4 is provided with soaking plate 42, radiating fin 41 and fixed via 43.Shell 5 is curved cylindric, and shell 5 top light-emitting windows offer big round mouth, and shell 5 bottoms offer little round mouth, and shell 5 forms and pushes up big, little two openings in the end, and shell 5 inner bottom parts are provided with vertical fixed leg 51, and fixed leg 51 is a cylinder; Shell 5 top light-emitting windows are provided with 53, three bayonet sockets 53 of bayonet socket and are distributed in shell 5 light-emitting window places with 120 °.

Shell 5 inner bottom parts are provided with radiator 4, and fixed leg 51 is inwardly stretched out in shell 5 bottom surfaces, and radiator 4 is unsettled to be arranged on the fixed leg 51 of shell 5, by tight fit between the fixed leg 51 of the fixed via 43 of radiator 4 and shell 5; Radiator 4 is provided with LED integrated optical source 3, LED integrated optical source 3 is provided with reflector 2, and reflector 2 inwalls are coated with specular material, and reflector 2 is provided with glare filter 1, glare filter 1 is the frosted thin rounded flakes, and glare filter 1 is fixed on the shell 5 by bayonet socket 53 rotations of shell 5.Shell 5 can be plastics, also can be metal, polycarbonate and acrylic.

Shell 5 housing peripheries have several cross-ventilation mouths 52, and cross-ventilation mouth 52 is evenly distributed on shell 5 housing peripheries, and cross-ventilation mouth 52 is bar shaped undercut through hole (undercut formula strip through-hole).

Glare filter 1 is arranged on the reflector 2, fix by 53 rotations of the bayonet socket on the shell 5, reflector 2 is arranged on the LED integrated optical source 3, LED integrated optical source 3 is fixed on the radiator 4 by screw, screw is fixed in the fixed via 43 of radiator 4, be provided with heat-conducting silicone grease between LED integrated optical source 3 and the radiator 4, radiator 4 is unsettled to be arranged on the fixed leg 51 of shell 5.

Radiator 4 is made of soaking plate 42 and radiating fin 41, and radiating fin 41 is the number of plate-shaped body, equidistantly vertically to be evenly distributed on the soaking plate 42, is drilled with fixed via 43 on the soaking plate 42.

Radiator 4 is a graphite material, is cylindric, dispels the heat in the heat radiation mode, and some radiating fins 41 are evenly distributed on the soaking plate 42 of radiator 4.Be provided with heat-conducting silicone grease between LED integrated optical source 3 and the radiator 4; LED integrated optical source 3 substrates can be aluminium bases, also can be copper base, ceramic substrate and graphite substrate.

LED integrated optical source 3 light-emitting areas are provided with reflector 2, and reflector 2 is horn-like, and reflector 2 inwalls are coated with high reflective mirror material; Reflector 2 can be a specular aluminium, also can finish by plated film on plastics or polycarbonate.

The above embodiment has only expressed the specific embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that the technology for this area, under the prerequisite that does not break away from the utility model design core, the equivalence that structure described in the utility model, feature and principle are done changes or decoration, and these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims

1. LED Down lamp, include: shell (5), it is characterized in that, described shell (5) is curved cylindric, described shell (5) inner bottom part is provided with inside fixed leg (51), described shell (5) top light-emitting window is provided with bayonet socket (53), described shell (5) inner bottom part is provided with radiator (4), described radiator (4) is unsettled to be arranged on the fixed leg (51) of shell (5), described radiator (4) is provided with LED integrated optical source (3), described LED integrated optical source (3) is provided with reflector (2), described reflector (2) is provided with glare filter (1), and described glare filter (1) is fixed on the shell (5) by bayonet socket (53) rotation of described shell (5).

2. a kind of LED Down lamp according to claim 1, it is characterized in that, described shell (5) housing periphery has several cross-ventilation mouths (52), and described cross-ventilation mouth (52) is a undercut formula strip through-hole, and described bayonet socket (53) is distributed in shell (5) light-emitting window place with 120 °.

3. a kind of LED Down lamp according to claim 1 is characterized in that, fixed leg (51) is inwardly stretched out in described shell (5) bottom surface, and described fixed leg (51) is a cylinder.

4. a kind of LED Down lamp according to claim 1 is characterized in that, described shell (5) adopts metal, polycarbonate or acrylic; Described LED integrated optical source (3) substrate is aluminium base, copper base, ceramic substrate or graphite substrate.

5. a kind of LED Down lamp according to claim 1 is characterized in that, described LED integrated optical source (3) is fixed on the radiator (4) by screw, is provided with heat-conducting silicone grease between described LED integrated optical source (3) and the described radiator (4).

6. a kind of LED Down lamp according to claim 1, it is characterized in that, described radiator (4) is made of soaking plate (42) and radiating fin (41), described radiating fin (41) is the number of plate-shaped body, described radiating fin (41) is drilled with fixed via (43) equidistantly vertically to be evenly distributed on the soaking plate (42) on the described soaking plate (42).

7. a kind of LED Down lamp according to claim 6 is characterized in that, the fixed leg (51) of the described shell of fixed via (43) tight fit (5) of described radiator (4), and described radiator (4) is a graphite material, radiator (4) is cylindric.

8. a kind of LED Down lamp according to claim 1 is characterized in that described reflector (2) is horn-like, and described reflector (2) inwall has specular material.

9. a kind of LED Down lamp according to claim 1 is characterized in that described reflector (2) is a specular aluminium.