Round LED lamp affixed to the ceiling
The utility model belongs to photoelectric field, is specifically related to a kind of round LED lamp affixed to the ceiling that can be used for the lighting fields such as office, engineering, decoration.
LED (light emitting diode) technology so that its power saving, high brightness, long service life, anti-seismic performance be good etc., extensively promoted by advantage, and the application of LED lamp aspect normal lighting and display is in recent years more and more extensive.Commonplace utilization is as LED lamp panel, in a lampshade, be array-like multiple LED lamp holders of arranging, and corresponding drive circuit is set in lampshade, although this structure is simple and practical, but LED lamp panel adopts straight-down negative LED light emitting source form, more dazzling, the to send light uniformity not good (uniformity is less than 70%).So, there is dealer to develop a class LED plane ceiling lamp, the parts that such LED plane ceiling lamp is plane and the inside are all also plane, mainly reflecting plate, LGP and the diffuser plate of mounting plane shape in base plate successively in a base, and at the side edge mounted LED lamp bar of leaded light power, light reaches through multiple reflections the object that improves the uniformity under the acting in conjunction of reflecting plate and LGP, and effectively prevents dazzle by diffuser plate.From said structure and principle, the core of this class LED flat lamp is, by the effect of LGP, line source is converted into area source.The LGP of prior art is the acryl plates that utilizes optical grade, then with thering is high reflectivity and the ink of extinction not, and light guiding points in the printing of the acryl plates bottom surface of optical grade.The light that utilizes optical grade acryl plates to draw to send from lamp is in the stop on optical grade acryl plates surface, and in the time that light is mapped to each light guiding points, reverberation can be toward all angles diffusion, then destroys conditioned reflex and penetrates by LGP is positive.By various vegetables light guiding points close, not of uniform size, can make LGP uniformly light-emitting, and the purposes of the reflector plate that is used in conjunction with of the LGP back side is that the light that bottom surface of light guide plate is exposed is reflected back in LGP, is used for improving the service efficiency of light.In practical operation by above-mentioned prior art LGP, be very difficult, yield is lower, and light word level acryl plates price is more expensive, therefore causes the LED plane ceiling lamp cost of prior art high, has hindered to a certain extent its application, Popularization And Development.This scheme, because of due to structure, can only be installed light emitting source in side, Gu radiating effect is not good, adds deficiency above, causes overall plan undesirable.
Utility model content
In order to overcome above-mentioned defect, the utility model provides a kind of luminous evenly soft round LED lamp affixed to the ceiling.
The utility model for the technical scheme that solves its technical problem and adopt is:
A kind of round LED lamp affixed to the ceiling, is fastened on circular lamp body drain pan by circular lamp body cover, is provided with an installing plate in lamp body drain pan, forms a gap between installing plate and lamp body cover; In the plane of lamp body cover, be provided with aluminium base at installing plate; On aluminium base, be equipped with several LED light emitting sources, on aluminium base, also have a sheet of planar reflective sheeting, on plane reflective sheeting, have the aperture corresponding with LED light emitting source, LED light emitting source is stretched out in outside the reflecting surface of plane reflective sheeting; In lamp body drain pan, post reflective sheeting circle around the surrounding in gap;
On described lamp body cover, be equipped with a diffuser plate, diffuser plate is positioned at the inside of lamp body cover the reflecting surface towards described reflective sheeting; Between diffuser plate and plane reflective sheeting, there is gap.
Described aluminium base bottom scribbles thermal grease, and installing plate is adhesively fixed.
Described LED light emitting source is the emitting integral being formed with some small-power SMD lamp pearls
Described plane reflective sheeting and reflective sheeting circle surface are sub-light reflection surface.
The skin of described diffuser plate is made as the diffusingsurface with some diffusion points, and internal layer is made as the plane of refraction with some refraction points, and described diffusion point and refraction point are die cast.
The utility model round LED lamp affixed to the ceiling can send even and soft light, and luminous efficiency is high, and for the lamp affixed to the ceiling technology of prior art no-reflection paper and diffuser plate, the utility model feature is to utilize the characteristic of reflective sheeting and diffuser plate, line source is converted to the face tabula rasa that light is soft, and luminous even soft free from glare, high light efficiency, long-life.Lamp body adopts all-aluminium construction design, helps lamp body and better dispels the heat.The utility model cost is low, simple in structure, easy to implement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is STRUCTURE DECOMPOSITION figure of the present utility model.
Diffusingsurface 1, diffuser plate 2, plane of refraction 3, gap 4, plane reflective sheeting 5, reflective sheeting circle 6, installing plate 7, LED light emitting source 8, aluminium base 9, thermal grease 10, lamp body cover 11, lamp body drain pan 12, link plate 13.
The specific embodiment
Specific embodiment of the utility model describes referring to Fig. 1, Fig. 2:
A kind of round LED lamp affixed to the ceiling of the utility model, is fastened on circular lamp body drain pan 12 by circular lamp body cover 11.In lamp body drain pan 12, be provided with an installing plate 7, make to form between installing plate 7 and lamp body cover 11 gap 4.In the plane of lamp body cover 11, be provided with aluminium base 9 at installing plate 7; Aluminium base 9 bottoms scribble thermal grease 10, and installing plate 7 is adhesively fixed.On aluminium base 9, be equipped with several LED light emitting sources 8, LED light emitting source 8 is emitting integrals that formed with some small-power SMD lamp pearls, and the temperature that LED light emitting source 8 is shed is more even.On aluminium base 9, also have a sheet of planar reflective sheeting 5, on plane reflective sheeting 5, have the aperture corresponding with LED light emitting source 8, LED light emitting source 8 is stretched out in outside the reflecting surface of plane reflective sheeting 5.Described thermal grease 10 can contribute to the heat of LED light emitting source 8 to derive outside lamp body through aluminium base 9, and this scheme has solved the heat dissipation problem of LED light emitting source 8, makes LED lamp longer service life.In lamp body drain pan 12, post reflective sheeting circle 6 around the surrounding in gap 4, for increasing the service efficiency of light, prevent that light from being absorbed by lamp body frame.Described plane reflective sheeting 5 and reflective sheeting circle 6 surfaces are sub-light reflection surface.Bottom position in lamp body drain pan 12, is provided with a link plate 13, for round LED lamp affixed to the ceiling being arranged on to roof or other buildings.
On described lamp body cover 11, be equipped with a diffuser plate 2, make diffuser plate 2 be positioned at the inside of lamp body cover 11 reflecting surface towards described reflective sheeting 6.Between diffuser plate 2 and plane reflective sheeting 5, there is gap 4.The skin of diffuser plate 2 is made as the diffusingsurface 1 with some diffusion points, and internal layer is made as the plane of refraction 3 with some refraction points, and diffusion point and refraction point on described diffuser plate 2 are die cast, have saved cost.Light penetrates toward all angles diffusion by some diffusion points on the diffusingsurface 1 of diffuser plate 2, line source can be converted into area source, diffuser plate 2 is except providing diffusing light effect, the refraction point of its another side can also return anaclasis gap 4 midplane reflective sheetings 5 and reflective sheeting circle 6, reflect through its reflecting surface again, be used for improving the service efficiency of light, more effectively prevent dazzle by diffuser plate 2.The plane of refraction 3 of described gap 4, diffuser plate 2 and plane reflective sheeting 5 and reflective sheeting circle 6 reflect to form light softening and light utilizes structure, can give out even and soft light, and improve utilization rate to light.Therefore, this LED lamp affixed to the ceiling can send even and soft light, and luminous efficiency is high, and for prior art LGP expensive, the utility model feature is not use LGP and on diffuser plate 2, does some diffusion points and refraction point, in conjunction with characteristic and the overall structure of reflective sheeting, this structure and technical costs are lower, and effect is than good with LGP.Lamp body adopts all-aluminium construction design, helps lamp body and better dispels the heat.
Above-described embodiment is only illustrative the utility model principle and effect thereof, but not for limiting the utility model.By above specific instantiation, the specific embodiment of the present utility model is described, the personage who is familiar with this skill can understand advantage of the present utility model and effect easily by content disclosed in the present specification.The utility model also can other different mode be implemented, and, under the category not disclosing departing from the utility model, can give different decorations and change that is.