CN203273362U - Reflecting type LED lamp - Google Patents

Abstract

The utility model discloses a reflecting type LED lamp which comprises a lamp sleeve with an opening and a lamp plate which is arranged in the lamp sleeve and is provided with LED light emitting particles. The lamp plate is in a strip shape and is erected in the lamp sleeve. The LED light emitting particles are placed on one side of the lamp plate. The side, with the LED light emitting particles, of the lamp plate is in the back direction of the opening of the lamp sleeve. According to the reflecting type LED lamp, all of light rays emitted by an LED light source are projected to the lamp sleeve and are emitted out of the lamp by being reflected by the lamp sleeve, the direction of the emit-out light rays can be conveniently controlled, and lighting is even. The lamp plate is erected in the lamp sleeve, according to the structure, the lamp plate is fixed, and meanwhile blocking to the emit-out light rays is lowered as much as possible, and passing rate of the light rays can be guaranteed to the maximum degree. The reflecting type LED lamp has the advantages of being simple in structure, low in production cost, even in lighting, high in light ray passing rate and the like, and the reflecting type LED lamp is beneficial to marketization promotion and utilization and has wide application prospect.

Description

A kind of reflection-type LED light fixture

Technical field

The utility model relates to the LED field of light fittings, particularly a kind of reflection-type LED light fixture.

Background technology

Light emitting diode (Light-Emitting-Diode, be called for short LED) be a kind of can be the semiconductor of luminous energy with electric energy conversion, its core component is LED chip.LED light source is high with its brightness, shock resistance and the significant advantage such as anti-seismic performance is good, long service life, optical efficiency height and more and more be concerned.Along with the high speed development of information technology, lighting field is more and more paid attention to for environmental protection and energy saving, and LED illumination as green illumination, has environmental protection, the remarkable advantage such as energy-conservation.Therefore, the LED illumination has more and more consequence at world's lighting field, has begun to be widely applied in every field, will bring a historical huge revolution for traditional lighting engineering.

Along with the development of LED lighting engineering, more and more adopt LED as light source at lighting field.LED light source does not pass through in the situation of reflexed light ring reflection or lens reflection, and its luminescent ligand light characteristic meets the radiation law of lambert (J.H.Lambert) illuminator, and this class illuminator is also referred to as the cosine illuminator.The light that LED light source sends is not when passing through luminous intensity distribution, and its intensity of illumination is very inhomogeneous, also can't control the light that LED light source sends, and in order to obtain lighting effect comparatively uniformly, generally adopts reflection lampshade to carry out luminous intensity distribution to the emergent light of LED light source.

Existing reflection-type LED light fixture is generally with reflection lampshade, reflects by one or many to be incident upon outside light fixture, and the emergent light of LED light source is carried out luminous intensity distribution, makes illumination evenly and light is controlled.LED light fixture by the primary event outgoing to light fixture usually adopts half pot of shape body lampshade as reflection lampshade, is equivalent to pot shape body is cut open from the centre, goes out to be equipped with lamp plate at the split surface of lampshade, and LED light source is placed on lamp plate.During work, LED light source with ray cast to the reflecting surface of lampshade and outgoing to light fixture.Be ZL 201120032020.9 as the patent No., name is called the Chinese utility model patent of " Reflecting LED light for automobile ", a kind of Reflecting LED light for automobile is disclosed, be the reflection-type LED fitting structure of LED light source emergent ray outgoing after primary event, as shown in Figure 1, consisted of by lampshade, wiring board and light source, lampshade is half pot of shape body, a fixed head is equipped with at split surface place at lampshade, and wiring board is installed on fixed head, and light source is housed on wiring board.

Above-mentioned through the reflection-type LED of primary event outgoing fitting structure, the light of LED light source outgoing does not all project on reflector, and to light fixture, this is unfavorable for the control to the light fixture emergent ray to some light without the direct outgoing of any reflection.And the light that LED light source sends is through the fitting structure of outgoing again after Multi reflection, and fitting structure is comparatively complicated, and production cost is higher, will additionally increase cost.

The utility model content

The utility model has proposed a kind of reflection-type LED light fixture for the technical deficiency that exists in prior art, and is simple in structure, can illumination even, and is convenient to control the direction of emergent ray.

A kind of reflection-type LED light fixture, comprise with the lampshade of opening and be placed in described lampshade lamp plate with the LED light-emitting particles, described lamp plate is strip and the inside that is erected at described lampshade, described LED light-emitting particles is positioned at a side of described lamp plate, and described lamp plate is with a side of the LED light-emitting particles opening of described lampshade dorsad.

In technique scheme, lamp plate is with a side of the LED light-emitting particles opening of lampshade dorsad, can guarantee light that LED light source (being the LED light-emitting particles on lamp plate) sends will all project on lampshade and reflect by lampshade after outgoing to light fixture, this reflective structure is convenient to control the direction of emergent ray, and can illumination even.The strip light grillage is located at the inside of lampshade, can be used in logical light, and this structure can be taken into account simultaneously the fixing of lamp plate and reduce stopping emergent ray as far as possible.And the utility model reflection-type LED light fixture can also guarantee that every a branch of emergent ray all passes through the reflection of lampshade, can change the spectral component of LED light source outgoing beam or light intensity etc. when lampshade inner surface being done certain processing.

As preferably, described lamp plate is Y-shaped or cross.The strip lamp plate of Y-shaped and decussate texture all can steady rest be located at the inside of lampshade, has taken into account to reduce the stopping of emergent ray improved the percent of pass of emergent ray in fixed L ED light-emitting particles.

As preferably, described lampshade is concave shaped, be hollow form, the inner surface of described lampshade is reflecting curved surface, the light that LED light-emitting particles on lamp plate sends will all project on lampshade, reflecting curved surface by lampshade inner surface is gone out the LED light source uniform irradiation, simultaneously, is convenient to control the direction of emergent ray.

Further preferred, the hollow space of described lampshade is half ellipsoid, and namely the inner surface of described lampshade is the ellipsoid reflecting curved surface, and this reflecting curved surface can make the LED light source uniform irradiation go out more equably.

As preferably, described lamp plate is positioned at the opening part of described lampshade.The strip light grillage is located at the inside of lampshade, can be used in logical light, the strip lamp plate is placed in the lampshade opening part can reduces the stopping of outgoing beam improved the percent of pass of outgoing beam.

As preferably, described LED light-emitting particles comprises blue-light LED chip and is coated in yellow fluorescent powder on described blue-light LED chip, blue-light LED chip+yellow fluorescent powder is the main implementation that realizes white light LEDs in prior art, the blue-light excited yellow fluorescent powder that sends by blue-light LED chip obtains white light, and technology maturation, with low cost and effect is better.

Further preferred, the inner surface of described lampshade is provided with the blue light absorption layer, owing to obtaining by blue-light excited yellow fluorescent powder in the mode of white light, in the white-light spectrum that obtains, blue light proportion is more, and excessively strong blue light has harm to human eye, therefore, be coated with the blue light absorption layer and will help to reduce blue light proportion in ejecting white light on lampshade, thereby reduce emergent ray to the harm of human eye.The blue light absorption layer can adopt prior art.

Compared with prior art, the utlity model has following advantage:

The utility model reflection-type LED light fixture, the LED light-emitting particles is positioned at a side of lamp plate, lamp plate is with a side of the LED light-emitting particles opening of lampshade dorsad, namely guarantee light that LED light source sends will all project on lampshade and reflect by lampshade after outgoing to light fixture, this reflective structure is convenient to control the direction of emergent ray, and can illumination even.And the strip light grillage is located at the inside of lampshade, can be used in logical light, and this structure can be taken into account simultaneously the fixing of lamp plate and reduce as far as possible and can guarantee to greatest extent the percent of pass of light to the stopping of emergent ray.That the utility model reflection-type LED light fixture has is simple in structure, production cost is lower, illumination is even, the percent of pass advantages of higher of light, is conducive to market-oriented utilization and extention, has broad application prospects.

The utility model reflection-type LED light fixture, in optimal technical scheme, described lamp plate is Y-shaped or cross, all can steady rest be located at the inside of lampshade, taken into account in fixed L ED light-emitting particles and reduced the stopping of emergent ray improved the percent of pass of emergent ray.Described lampshade is concave shaped, is hollow form, and the inner surface of described lampshade is reflecting curved surface, and the hollow space of described lampshade is half ellipsoid, and the LED light source uniform irradiation is gone out.Described lamp plate is positioned at the opening part of described lampshade, has improved the percent of pass of outgoing beam.The inner surface of described lampshade is provided with the blue light absorption layer, is coated with the blue light absorption layer and will helps to reduce blue light proportion in ejecting white light on lampshade, thereby reduce emergent ray to the harm of human eye.

Description of drawings

Fig. 1 is the structural representation of Reflecting LED light for automobile in prior art;

Fig. 2 is the internal structure schematic diagram of the utility model reflection-type LED light fixture.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model reflection-type LED light fixture is described in further detail.

As shown in Figure 2, be the utility model reflection-type LED light fixture, comprise with the lampshade 2 of opening 1 and be placed in lampshade 2 lamp plate 4 with LED light-emitting particles 3, lamp plate 4 is strip and the inside that is erected at lampshade 2, LED light-emitting particles 3 is positioned at a side of lamp plate 4, and lamp plate 4 is with a side of LED light-emitting particles 3 opening 1 of lampshade 2 dorsad.

Lamp plate 4 is Y-shaped or cross, is Y-shaped in figure, and the strip lamp plate 4 of Y-shaped structure stably is erected at the inside of lampshade 2.

Lampshade 2 is concave shaped, is hollow form, and the inner surface 5 of lampshade 2 is reflecting curved surface, and the hollow space of lampshade 2 is half ellipsoid, and namely the inner surface 5 of lampshade 2 is the ellipsoid reflecting curved surface,

Lamp plate 4 is positioned at opening 1 place of lampshade 2, and namely lamp plate 4 is near the opening 1 of lampshade 2, and strip lamp plate 4 is erected at the inside at opening 1 place of lampshade 2.

LED light-emitting particles 3 comprises blue-light LED chip and is coated in yellow fluorescent powder on blue-light LED chip, the inner surface 5 of lampshade 2 is provided with the blue light absorption layer, the material that absorbs blue light in the blue light absorption layer can be selected yellow uitramarine, specifically can select the Nanoptek Yellow of Nanoptek company development ^TMYellow uitramarine.

The specific works principle of the utility model reflection-type LED light fixture is as follows:

During the work of the utility model reflection-type LED light fixture, LED light source (being the LED light-emitting particles 3 on lamp plate 4) outgoing beam will all project lampshade 2 inner surface 5(reflecting curved surfaces) on, blue light absorption layer segment on inner surface 5 absorbs the blue light ingredient in LED light-emitting particles 3 outgoing beams, reduce the blue light proportion in ejecting white light, reduce emergent ray to the harm of human eye, light after lampshade 2 reflection outgoing to light fixture, this reflective structure is convenient to control the direction of emergent ray, and can illumination even.And strip lamp plate 4 is erected at the inside of lampshade 2, can be used in logical light, can take into account simultaneously the fixing of lamp plate 4 and reduce as far as possible can guarantee to greatest extent the percent of pass of light to the stopping of emergent ray.

The above-described specific embodiment has been described in detail the technical solution of the utility model and beneficial effect; be understood that the above only is most preferred embodiment of the present utility model; be not limited to the utility model; all any modifications of making in principle scope of the present utility model, replenish and be equal to replacement etc., within all should being included in protection domain of the present utility model.

Claims (7)

1. reflection-type LED light fixture, comprise with the lampshade of opening and be placed in described lampshade lamp plate with the LED light-emitting particles, it is characterized in that, described lamp plate is strip and the inside that is erected at described lampshade, described LED light-emitting particles is positioned at a side of described lamp plate, and described lamp plate is with a side of the LED light-emitting particles opening of described lampshade dorsad.

2. reflection-type LED light fixture according to claim 1, is characterized in that, described lamp plate is Y-shaped or cross.

3. reflection-type LED light fixture according to claim 1, is characterized in that, described lampshade is concave shaped, is hollow form, and the inner surface of described lampshade is reflecting curved surface.

4. reflection-type LED light fixture according to claim 3, is characterized in that, the hollow space of described lampshade is half ellipsoid.

5. reflection-type LED light fixture according to claim 1, is characterized in that, described lamp plate is positioned at the opening part of described lampshade.

6. reflection-type LED light fixture according to claim 1, is characterized in that, described LED light-emitting particles comprises blue-light LED chip and is coated in yellow fluorescent powder on described blue-light LED chip.

7. reflection-type LED light fixture according to claim 6, is characterized in that, the inner surface of described lampshade is provided with the blue light absorption layer.