CN203836643U

CN203836643U - LED panel lamp

Info

Publication number: CN203836643U
Application number: CN201420120910.9U
Authority: CN
Inventors: 赵宇波; 焦丽华; 许靖; 郭雅群
Original assignee: Shenzhen Institute for Innovative Design Co Ltd
Current assignee: Shenzhen Institute for Innovative Design Co Ltd
Priority date: 2014-03-17
Filing date: 2014-03-17
Publication date: 2014-09-17
Anticipated expiration: 2024-03-17

Abstract

An LED panel lamp is characterized by comprising a light source assembly, a lens assembly and a shell. The light source assembly comprises a substrate and an LED chip arranged on the substrate. The lens assembly comprises a sub-lens corresponding to the LED chip, the sub-lens is concaved inwards in the middle, and a fully reflecting face is arranged on the periphery of the sub-lens. The shell, the light source assembly and the lens assembly are overlapped and assembled in sequence. The light emitted by the light source assembly is emitted through the lens assembly. According to the LED panel lamp, the middle of the light-emitting face of the sub-lens is concaved inwards so that a lens structure with the middle thin and the two sides thick can be formed, the light rays projected through the sub-lens diverge towards the two sides, the middle intensity of the light rays is reduced, the dazzling phenomenon is effectively reduced, the fully reflecting face is arranged on the periphery, the light rays can be collected easily, and the illumination intensity is kept.

Description

LED panel light

Technical field

The utility model relates to LED technical field, particularly relates to a kind of LED panel light.

Background technology

LED(Light-Emitting Diode, light emitting diode) be a kind of solid-state semiconductor devices that electric energy conversion can be become to visible ray, have that voltage is low, power consumption is little, luminous efficiency advantages of higher, nowadays in the outer illumination of Indoor environment, urban beautification, Landscape Lighting etc., application is also more and more extensive.

LED panel light is a kind of light fixture being applied in the outer illumination of Indoor environment.General LED panel light is made direct projection light source design based on LED spot light, but the light penetrating is comparatively dazzling, produces serious glare problem, in the exigent occasion of color quality, even can produce vision erroneous judgement, causes serious accident involving serious consequences.

utility model content

Based on this, be necessary for glare problem, a kind of LED panel light is provided.

A LED panel light, is characterized in that, comprising: light source assembly, comprise substrate and LED chip, and LED chip is arranged on described substrate; Lens subassembly, comprises sub-lens, sub-lens setting corresponding to LED chip, and indent in the middle of the exiting surface of sub-lens, periphery is provided with fully reflecting surface; And housing; The assembling that superposes successively of housing, light source assembly and lens subassembly, the light that light source assembly sends penetrates by described lens subassembly.

Therein in an embodiment, in the angle theta that departs from of the central shaft of described sub-lens, be within the scope of 0 to 10 degree, described exiting surface indent, and the lens thickness of described sub-lens increases with departing from angle.

Therein in an embodiment, at the angle Φ that departs from of the central shaft of described sub-lens, be that within the scope of 60 to 90 degree, described sub-lens is provided with fully reflecting surface.

Therein in an embodiment, at the angle α that departs from of the central shaft of described sub-lens, be within the scope of 10 to 60 degree, the exiting surface evagination of described sub-lens.

In an embodiment, sub-lens enters light face indent and forms the groove that can accommodate described LED chip therein.

In an embodiment, LED chip is array arrangement on described substrate therein.

In an embodiment, housing, lens subassembly and light source assembly are assembled into one successively by connector therein.

In an embodiment, light source assembly is fixed on described housing therein, and described lens subassembly is arranged on described housing.

In an embodiment, lens subassembly is arranged on described housing therein, and clamps described light source assembly.

In an embodiment, also comprise radiating subassembly therein, described radiating subassembly is arranged on described back side of shell.

Above-mentioned LED panel light, in the middle of sub-lens exiting surface, indent forms the thick lens arrangement in intermediate thin both sides, light by projecting after sub-lens is dispersed to both sides, reduced light intermediate intensity, effectively reduce glare phenomenon, this neighboring is provided with fully reflecting surface, contributes to collect light, keeps intensity of illumination.

Accompanying drawing explanation

Fig. 1 is the LED panel light integral installation figure the utility model proposes;

Fig. 2 is LED panel light structure exploded view in Fig. 1;

Fig. 3 is sub-lens cross-sectional view in Fig. 2;

Fig. 4 is the light path of light figure through sub-lens generation total reflection phenomenon;

Fig. 5 is another visual angle STRUCTURE DECOMPOSITION figure of the LED panel light that the utility model proposes;

Fig. 6 is the LED panel light distribution curve flux figure the utility model proposes.

The specific embodiment

Described in the utility model laterally, longitudinally, inner side, outside and upper and lower be according to LED panel light putting position in this attached body, therefore do not limit scope of the present utility model.

Referring to Fig. 1～2, the utility model proposes LED panel light and comprise light source assembly 100, lens subassembly 200 and housing 300.

Particularly, light source assembly 100 is the light emitting source of LED panel light of the present utility model, includes LED chip 110 and substrate 120.LED chip 110 is arranged on substrate 120, and LED chip 110 can be one or a plurality of, and substrate 120 can be aluminium base, can be also pcb board.

Lens subassembly 200, is arranged on the exiting surface of light source assembly 100, for changing the light direction of illumination being penetrated by light source assembly 100.Lens subassembly 200 comprises sub-lens 210, and sub-lens 210 adopts transparent materials to make, acrylic material for example, glass material.In the middle of the exiting surface of sub-lens 210, cave inward, periphery is provided with fully reflecting surface 211, and sub-lens 210 setting corresponding to LED chip 110, and LED chip 110 axis are aimed at sub-lens 210 axis settings.

Housing 300, is arranged on the shady face of light source assembly 100, forms the cavity of accommodating light source assembly 100 with lens subassembly 200.In addition, housing 300 also can with substrate 120 integrated setting.

The assembling that superposes successively of housing 300, light source assembly 100 and lens subassembly 200, after light is sent by light source assembly 100, penetrates through lens subassembly 200.

Because sub-lens 210 exiting surfaces cave inward, it is thick that this part is rendered as intermediate thin both sides, and light is dispersed by backward both sides, reduces glare phenomenon.

With reference to Fig. 3, in one embodiment, in the angle theta that departs from of the central shaft of sub-lens 210, be within the scope of 0～10 degree, sub-lens 210 exiting surface indents, and the lens thickness of these parton lens 210 increases along with departing from angle to increase.

Particularly, LED chip 110 and sub-lens 210 to enter light face corresponding, and LED chip 110 is positioned on the axis of sub-lens 210.Take LED chip 110 positions is initial point, departing from 10 ° of scopes of axis, and the exiting surface indent of sub-lens 210, and sub-lens 210 thickness of this part increase along with departing from the angle theta number of degrees to increase.

By above setting, contribute to diverging LED chip 110 at the light in centre position, weaken the exposure intensity in light centre position, prevent that light is excessively strong.

Further, the angle Φ that departs from the axis of sub-lens 210 is within the scope of 60 ° to 90 °, and sub-lens 210 is provided with fully reflecting surface.

Particularly, referring to Fig. 4.Single led chip 110 is spot light, is diversity luminous.The critical angle occurring according to total reflection phenomenon, the minute surface radian of adjustment sub-lens 210 peripheries, sets out fully reflecting surface 211.Two index paths that for example in figure, dotted line indicates, when light outwards penetrates through sub-lens 210, beat on fully reflecting surface 211 total reflection phenomenon occur, then penetrate below sub-lens 210.

In the process that is transmitted through air by sub-lens 210 at light, by total reflection principle, collect light, contribute to collect light, control the ejaculation direction of light, guarantee the intensity of illumination of LED panel light.

Further, the angle α that departs from the axis of sub-lens 210 is within the scope of 10 ° to 60 °, the exiting surface evagination of sub-lens 210.

Particularly, the axis of sub-lens 210 to depart within the scope of 60 ° of angles be the exiting surface of sub-lens 210.Sub-lens 210 exiting surface indents within the scope of 10 ° wherein, exiting surface evagination within the scope of 10 ° to 60 °, whole exiting surface both sides evagination, middle indent, is wavy.

After the exiting surface of light by wavy setting, be evenly incident upon on shadow surface, reduced the generation of glare problem.

In the present embodiment, entering on light face of sub-lens 210 is also provided with groove 211, and groove 211 enters light face indent by sub-lens 210 and forms, and can accommodate LED chip 110.

Particularly, sub-lens 210 enters the middle indent of light face and forms groove 211, and the LED chip 110 after assembling can stretch in groove 211, and groove 211 tops are adjacent to substrate 120, and LED chip 110 is arranged on the axis of sub-lens 210.

Groove 211 is set, makes sub-lens 210 and light emitting source LED chip 110 assemble closelyr, contribute to reduce the integral thickness of LED panel light.

In one embodiment, LED chip 110 quantity that are arranged on substrate 120 are more than two, and evenly arrange in array ground.LED chip 110 adopts the chip of 3528 high light efficiencies, low colour temperature, and luminous efficiency is high.Sub-lens 210 quantity equate with LED chip 110, and corresponding setting one by one.Particularly, each LED chip 110 is all on corresponding sub-lens 210 axis, and sub-lens 210 connects into an integral body by transparent material each other.Transparent material can be identical with sub-lens 210 materials.

Adopt a plurality of LED chip 110 array arrangements, can guarantee the intensity of illumination of LED panel light, make bright dipping even simultaneously.

Referring to Fig. 5, in one embodiment, the corresponding screw that is distributed with in the bezel locations of light source assembly 100, lens subassembly 200 and housing 300.By screw, housing 300, light source assembly 100 and lens subassembly 200 are serially connected successively, screw can be adjusted length by actual demand, screw, from rear housing 300 places toward lens subassembly 200 precessions, be can't see screw when user is up observed by below, and good looking appearance is succinct.

In another embodiment, light source assembly 100 is fixed by screws on housing 300 medial surfaces, and housing 300 carries out affixed with lens subassembly 200 again.

In addition, can also be that housing 300 is direct and lens subassembly 200 is affixed, form the seal chamber of accommodating light source assembly 100.Between light source assembly 100 and housing 300 or lens subassembly 200, need not be connected by screw, only rely on both to clamp.

The LED panel light structure the utility model proposes is simple, and the thickness of light source group 100, lens subassembly 200 and housing 300 all, below 5mm, superposes after assembling, integral thickness deficiency 10mm, and frivolous volume is little.

In one embodiment, LED panel light also comprises radiating subassembly (not shown).Radiating subassembly is arranged on the back side of housing 300, is close to housing 300.Be appreciated that radiating subassembly can be also one-body molded with housing 300, help LED chip 110 heat radiations, thus job stability and the life-span of improving LED panel light.

The LED panel light the utility model proposes, overall power, in about 10～12W, need not be installed diffuser plate, and by the lens subassembly of special construction is set, light is soft and do not damage light efficiency, simple in structure and light extraction efficiency is high.

Sub-lens 210 mid portion even thickness change, and periphery is provided with fully reflecting surface 211.Fig. 6 is the LED panel light distribution curve flux figure that is provided with this kind of sub-lens 210, can see that light both sides are strong, a little less than centre, and moderate strength, can reach comparatively desirable light-dispersing effect.

The above embodiment has only expressed several 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 the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, 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. a LED panel light, is characterized in that, comprising:

Light source assembly, comprises substrate and LED chip, and described LED chip is arranged on described substrate;

Lens subassembly, comprises sub-lens, the setting corresponding to described LED chip of described sub-lens, and indent in the middle of the exiting surface of described sub-lens, periphery is provided with fully reflecting surface; And

Housing;

The assembling that superposes successively of described housing, light source assembly and lens subassembly, the light that described light source assembly sends penetrates by described lens subassembly.

2. LED panel light according to claim 1, is characterized in that, in the angle theta that departs from of the central shaft of described sub-lens, is within the scope of 0 to 10 degree, described exiting surface indent, and the lens thickness of described sub-lens increases with departing from angle.

3. LED panel light according to claim 2, is characterized in that, at the angle Φ that departs from of the central shaft of described sub-lens, is that within the scope of 60 to 90 degree, described sub-lens is provided with fully reflecting surface.

4. LED panel light according to claim 3, is characterized in that, at the angle α that departs from of the central shaft of described sub-lens, is within the scope of 10 to 60 degree, the exiting surface evagination of described sub-lens.

5. LED panel light according to claim 4, is characterized in that, described sub-lens enters light face indent and forms the groove that can accommodate described LED chip.

6. LED panel light according to claim 1, is characterized in that, described LED chip is array arrangement on described substrate.

7. according to the LED panel light described in any one of claim 1～6, it is characterized in that, described housing, lens subassembly and light source assembly are assembled into one successively by connector.

8. according to the LED panel light described in any one of claim 1～6, it is characterized in that, described light source assembly is fixed on described housing, and described lens subassembly is arranged on described housing.

9. according to the LED panel light described in any one of claim 1～6, it is characterized in that, described lens subassembly is arranged on described housing, and clamps described light source assembly.

10. LED panel light according to claim 1, is characterized in that, also comprises radiating subassembly, and described radiating subassembly is arranged on described back side of shell.