CN204420667U

CN204420667U - A kind of diffuse reflection type LED down

Info

Publication number: CN204420667U
Application number: CN201520094800.4U
Authority: CN
Inventors: 宫成喆
Original assignee: Gui Yuan Electro-Optical Technology Inc (us) 62 Martin Road Concord Massachusetts 017 Of Zhongshan City
Current assignee: Guangdong Guiyuan Technology Co.,Ltd.
Priority date: 2015-02-09
Filing date: 2015-02-09
Publication date: 2015-06-24
Anticipated expiration: 2025-02-09

Abstract

The utility model discloses a kind of diffuse reflection type LED down, comprise the panel and back cover that be located in and surround an accommodating cavity together, one LED light source is located in this accommodating cavity, panel is provided with a light-emitting window, on the rear wall that described LED light source is located at panel and its direction of illumination towards rear, be provided with one in described accommodating cavity for the divergence of beam of LED light source is reflexed to the diffuse reflection part of light-emitting window.The utility model can effectively weaken even eliminates dazzle, simultaneously less to the loss of light intensity, light efficiency is higher, effectively can reduce energy resource consumption, energy-conserving and environment-protective, and this LED down structure is simple, thickness is less, compared to traditional LED down, more attractive and durable, also more easily produce and assemble, effectively can reduce production cost.

Description

A kind of diffuse reflection type LED down

Technical field

The utility model relates to field of illuminating lamps, particularly a kind of diffuse reflection type LED down.

Background technology

The LED light source of existing LED down is normally located at the rear portion of lamp body, the direction of illumination of LED light source toward the front, usually also can be provided with a reflector in lamp body to reflect the light assembling LED light source, the thickness of lamp body can be made so comparatively large, and easily occurring dazzle; Also part LED down is had to be located on the madial wall of lamp body by LED light source at present, utilizing astigmatism plate and reflecting plate by the divergence of beam of LED light source and reflexing to light-emitting window place, although can effectively reduce the thickness of LED down and weaken glare effect like this, but still have some light to be directly irradiate down due to it, still dazzle can be there is in the edge of light-emitting window, simultaneously astigmatism plate also can absorption portion light, illuminating effect can be weakened, thus indirectly improve energy consumption, and this kind of LED down structure is comparatively complicated, cost is higher.

Utility model content

In order to solve the problem, the purpose of this utility model is to provide the diffuse reflection type LED down that a kind of structure is simple, effectively can reduce dazzle, improve light efficiency.

The utility model is the technical scheme that its technical problem of solution adopts:

A kind of diffuse reflection type LED down, comprise the panel and back cover that be located in and surround an accommodating cavity together, one LED light source is located in this accommodating cavity, panel is provided with a light-emitting window, on the rear wall that described LED light source is located at panel and its direction of illumination towards rear, be provided with one in described accommodating cavity for the divergence of beam of LED light source is reflexed to the diffuse reflection part of light-emitting window.

Optionally, described diffuse reflection part is the diffuse reflection cup be located in described accommodating cavity.

Preferably, described diffuse reflection part is be coated with the diffuse coatings being located at back cover inwall.

Preferably, the lateral wall of described panel is provided with some radiating fins.

Preferably, described back cover is spherical crown shape, and the outer wall of back cover is provided with some reinforcements.

Preferably, described panel is provided with some fixing threaded holes, the edge of back cover is provided with the breach through hole matched with described fixing threaded hole, and the front portion of some hold-down screws is spirally connected with fixing threaded hole through after this breach through hole, thus is pressed abd fixed on panel by the nut of hold-down screw by back cover; The bar portion of described hold-down screw can move radially to this breach through hole from rear shell-side.

The beneficial effects of the utility model are: due on the rear wall that LED light source in the utility model is located at panel and its direction of illumination towards rear, its light through diffuse reflection part spread reflection to light-emitting window place, illuminating ray can be made softer and even, there will not be excessive luminance difference, effectively can weaken and even eliminate dazzle, simultaneously less to the loss of light intensity, light efficiency is higher, effectively can reduce energy resource consumption, energy-conserving and environment-protective, and this LED down structure is simple, thickness is less, compared to traditional LED down, more attractive and durable, also more easily produce and assemble, effectively can reduce production cost.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Fig. 1 is overall structure figure of the present utility model;

Fig. 2 is exploded view of the present utility model;

Fig. 3 is the bottom view of the utility model exploded view.

Detailed description of the invention

Referring to figs. 1 through Fig. 3, a kind of diffuse reflection type LED down, comprise the panel 10 and back cover 20 that be located in and surround an accommodating cavity together, the middle part of panel 10 offers a light-emitting window, the LED light source 30 of one circle be sticked panel 10 rear wall and be positioned at the dead ahead of back cover 20 inner chamber, the inwall of back cover 20 scribbles diffuse coatings, the divergence of beam of LED light source 30 can be reflexed to light-emitting window by this diffuse coatings, on the rear wall that LED light source 30 is located at panel 10 in the utility model, its direction of illumination is towards rear, its light through diffuse coatings spread reflection to light-emitting window place, illuminating ray can be made softer and even, there will not be excessive luminance difference, effectively can weaken and even eliminate dazzle, simultaneously less to the loss of light intensity, light efficiency is higher, effectively can reduce energy resource consumption, energy-conserving and environment-protective, and this LED down structure is simple, thickness is less, compared to traditional LED down, more attractive and durable, also more easily produce and assemble, effectively can reduce production cost.

At present, along with the development of nanometer technology, the total reflectivity of the diffuse coatings be made up of high reverse--bias nano material and diffuse reflectance can reach more than 95% all, the secondary souce that diffuse reflection is formed is typical area source, and distribution of light is evenly soft, is best suited for a kind of light source of human eye, lamp distribution can be made more even, the phenomenon of the light and shade striped in thorough elimination lamp lighting, eliminate dazzle, human eye perceives is more comfortable.

This diffuse coatings also can be located at diffuse reflection cup in this accommodating cavity with one and replace, and this diffuse reflection cup is similar with the reflecting cup structure in existing LED down, distinguishes and is that its reflective surface is the diffuse surface of frosted shape; In the present embodiment, LED light source 30 have employed round LED light bar structure, can certainly adopt other Ordinary Light Sources Have structures such as LED lamp bead.

The sidewall of panel 10 is provided with some radiating fins 11, and the heat produced during for being worked by LED light source 30 distributes, and prevents that LED light source 30 is overheated to be burnt.In the present embodiment, back cover 20 is in spherical crown shape, and the outer wall of back cover 20 is provided with some reinforcements 21, and this structure can improve the intensity of back cover 20, prevents back cover 20 in transport, stores and compressive deformation in use.

Panel 10 is provided with some fixing threaded holes 12, the edge of back cover 20 is provided with the breach through hole 23 matched with fixing threaded hole 12, the front portion of some hold-down screws through after this breach through hole 23 and fixing threaded hole 12 be spirally connected, thus by the nut of hold-down screw, back cover 20 is fixed on the faceplate 10; The bar portion of hold-down screw can move radially to this breach through hole 23 from back cover 20 sidepiece.Traditional LED down normally offers through hole on back cover 20, utilize screw to pass through hole be spirally connected with the screw on panel 10 thus be fixedly connected with panel 10 and back cover 20, if processing or in using panel 10 or back cover 20 produce distortion through hole and screw just can be made to occur dislocation and be difficult to alignment, impact is installed, in the present embodiment, at back cover 20 edge breach through hole 23, screw can radially move in breach through hole 23, so just, the dislocation that distortion produces can be compensated, be convenient to dismounting.

Back cover 20 is also provided with the string holes 24 for passing for the power line of LED light source 30, for the Line pressing buckle 22 of fixed power source line and for this LED down being fixed torsion spring 40 on the ceiling, these are all structures conventional in this area, are not separately described further at this.

The foregoing is only preferred embodiments of the present utility model, as long as the technical scheme realizing the utility model object with basic same approach all belongs within protection domain of the present utility model.

Claims

1. a diffuse reflection type LED down, comprise the panel (10) and back cover (20) that be located in and surround an accommodating cavity together, one LED light source (30) is located in this accommodating cavity, panel (10) is provided with a light-emitting window, it is characterized in that: on the rear wall that described LED light source (30) is located at panel (10) and its direction of illumination towards rear, be provided with one in described accommodating cavity for the divergence of beam of LED light source (30) is reflexed to the diffuse reflection part of light-emitting window.

2. a kind of diffuse reflection type LED down according to claim 1, is characterized in that: described diffuse reflection part is the diffuse reflection cup be located in described accommodating cavity.

3. a kind of diffuse reflection type LED down according to claim 1, is characterized in that: described diffuse reflection part is the diffuse coatings that painting is located at back cover (20) inwall.

4. a kind of diffuse reflection type LED down according to claim 1, is characterized in that: the lateral wall of described panel (10) is provided with some radiating fins (11).

5. a kind of diffuse reflection type LED down according to claim 1, is characterized in that: described back cover (20) is in spherical crown shape, and the outer wall of back cover (20) is provided with some reinforcements (21).

6. a kind of diffuse reflection type LED down according to claim 1, it is characterized in that: described panel (10) is provided with some fixing threaded holes (12), the edge of back cover (20) is provided with the breach through hole (23) matched with described fixing threaded hole (12), the front portion of some hold-down screws is spirally connected with fixing threaded hole (12) afterwards through this breach through hole (23), thus is pressed abd fixed on panel (10) by the nut of hold-down screw by back cover (20); The bar portion of described hold-down screw can move radially in this breach through hole (23) from back cover (20) sidepiece.