CN201246690Y

CN201246690Y - LED flat plate lamp

Info

Publication number: CN201246690Y
Application number: CNU2008200954560U
Authority: CN
Inventors: 龚伟斌; 林常; 颜小平
Original assignee: SHENZHEN RUIFENG DISPLAY TECHNOLOGIES Co Ltd
Current assignee: Shenzhen Light Green International Co., Ltd.
Priority date: 2008-07-10
Filing date: 2008-07-10
Publication date: 2009-05-27
Anticipated expiration: 2018-07-10

Abstract

The utility model discloses a LED plate lamp, comprising a lamp slot, a LED lamp string, a diffusion board mounted in the lamp slot, a light guide plate, a reflector and a back cover, wherein the diffusion board, the light guide plate, the reflector and the back cover are arranged in turn, the LED lamp string is mounted in the lamp slot, and a silkscreen membrane is arranged between the reflector and the light guide plate. The LED plate lamp has simple processing technology, the convex parts on the silkscreen membrane are rarely arranged at periphery and densely arranged at center for reflecting center light to periphery, changing the path of the light source in the emission of the light source and changing lateral light emitting angle to front light emitting angle, thereby realizing uniformity effect as surface light sources. The LED plane lamp can emit uniform light, improve light utilization rate and has simple installment. In installment, the lamp slot is connected with the connector via screws, and the LED plane lamp can be suspended on a demanded position by hanging holes on the connector. The LED lamp string is abut against to the lamp slot, thus supporting heat radiation.

Description

A kind of LED flat lamp

Technical field

The utility model relates to the LED lighting device, relates in particular to a kind of LED flat lamp.

Background technology

The LED lamp life-span was 70000 hours, normally used following service life even can surpass life-span of people.Except having overlength service life, the LED lamp has the advantage of power saving simultaneously.General LED lamp can provide the lasting illumination more than tens hours even 100 hours, is that incandescent lamp is incomparable.Fast 10 times of the time of lighting of lighting the time ratio incandescent lamp of LED lamp, and in lighting process noiselessness do not have a stroboscopic.Under the background that the worry of current global energy shortage raises once again, energy savings is the important problem that we shall face future, at lighting field, the LED luminous product is compared energy-conservation more than 10 times with conventional illumination device (incandescent lamp), the application of LED luminous product is just attracting common people's sight, LED must be a developing tendency in future as a kind of novel green light source product, and it is the novel illumination light source epoch of representative that 21st century will enter with LED.LED be called as the 4th generation lighting source or green light source, can be widely used in fields such as various indications, demonstration, decoration, backlight, general lighting and urban landscape.But also there is shortcoming in LED as lighting source: light is more concentrated, and diversity is poor, and irradiated area is little; The LED lamp can produce a large amount of heats when illumination, if can not in time heat be distributed, will influence the service life of LED lamp.

The utility model content

For addressing the above problem, the purpose of this utility model is to provide the LED that a kind of light is even, irradiated area is wide, light utilization efficiency is high, heat dispersion is good flat lamp.

For achieving the above object, the technical solution of the utility model is:

A kind of LED flat lamp, comprise light trough, LED lamp bar, be installed on diffuser plate, LGP, reflecting piece and bonnet in the light trough, described diffuser plate, LGP, reflecting piece and bonnet are arranged in order, and LED lamp bar is installed in the light trough, is provided with the silk-screen film between described reflecting piece and LGP.

Described silk-screen film is provided with protuberance.

Described protuberance is circular.

Described protuberance is two or more, is sparse, the middle intensive shape of periphery and arranges.

Described light trough connects by connector.

The rectangular bending of described connector, its two ends are respectively equipped with brace, and brace is provided with connecting hole.

Described connector is provided with suppending hole.

The substrate of described LED lamp bar is an aluminium base.

Be provided with the side reflecting piece in the described light trough.

LED flat lamp described in the utility model, processing technology is simple, protuberance on the silk-screen film is sparse, the middle dense arrangement of periphery, around helping intermediate rays reflexed to, in the stroke of light emitted, change the path of light source, make the lighting angle of side change into positive lighting angle, reach the inhomogeneity effect of area source, also improved the utilization rate of light; This LED flat lamp is easy for installation, and light trough is connected with connector by screw during installation, utilizes the suppending hole on the connector, the LED flat lamp can be suspended on desired location; Because LED lamp bar near light trough, is beneficial to heat radiation.

Description of drawings

Fig. 1 is a LED flat lamp three-dimensional exploded view described in the utility model;

The light trough partial enlarged drawing that Fig. 2 utilizes connector to connect;

Fig. 3 is a LED flat lamp part sectioned view described in the utility model;

Fig. 4 is a silk-screen membrane structure schematic diagram;

Fig. 5 is an index path.

The primary clustering symbol description

1, light trough 2, LED lamp bar 3, diffuser plate

4, LGP 5, silk-screen film 6, reflecting piece

7, bonnet 8, side reflecting piece 9, connector

91, brace 92, connecting hole

10, Switching Power Supply 11, power supply cover plate 12, suppending hole

The specific embodiment

See also Fig. 1, Fig. 2 and Fig. 3, a kind of LED flat lamp comprises that four light troughs 1, two LED lamp bars 2, LED lamp bars are installed in the two relative light troughs, and this light trough is through anodic oxidation, smooth surface, and reflective is good.In the other two relative light troughs side reflecting piece 8 is installed, and is installed on diffuser plate 3, LGP 4, silk-screen film 5, reflecting piece 6 and bonnet 7 in the light trough, described diffuser plate, LGP, silk-screen film, reflecting piece and bonnet are arranged in order.Adjacent light trough connects by connector 9, the rectangular bending of connector, its two ends are respectively equipped with brace 91, brace is provided with connecting hole 92, be connected by screw between light trough and connector, described connector is provided with suppending hole 12, is convenient to the LED flat lamp and is installed on desired location, also is easy to change the position.Bonnet is provided with Switching Power Supply 10 and power supply cover plate 11.

The substrate of LED lamp bar is an aluminium base, and when LED lamp bar was installed in the light trough, aluminium base was beneficial to heat radiation near the sidewall of light trough.

See also Fig. 4, the silk-screen film is provided with 224 protuberances, and described protuberance is sparse, the middle intensive shape of periphery and arranges.

See also Fig. 5, the propagation path of light between diffuser plate 3, LGP 4 and reflecting piece 6, LED is luminous after energising, silk-screen film 5 reflections and the refraction of light on LGP 4, light after the refraction is again through reflecting piece 6 reflections,, send again through diffuser plate 3 refractions by LGP 4 from the surface of diffuser plate 3; The light of organizine die 5 reflections after diffuser plate 3 scatterings, sends from the surface of diffuser plate 3 by LGP 4 again.Refract to the light of side reflecting piece through LGP,, can also utilize again, avoided the waste of light through the reflection of side reflecting piece.

Claims

1, a kind of LED flat lamp, comprise light trough, LED lamp bar, be installed on diffuser plate, LGP, reflecting piece and bonnet in the light trough, described diffuser plate, LGP, reflecting piece and bonnet are arranged in order, LED lamp bar is installed in the light trough, it is characterized in that: be provided with the silk-screen film between described reflecting piece and LGP.

2, a kind of LED flat lamp according to claim 1, it is characterized in that: described silk-screen film is provided with protuberance.

3, a kind of LED flat lamp according to claim 2 is characterized in that: described protuberance is for circular.

4, according to claim 2 or 3 described a kind of LED flat lamp, it is characterized in that: described protuberance is two or more, is sparse, the middle intensive shape of periphery and arranges.

5, a kind of LED flat lamp according to claim 1, it is characterized in that: described light trough connects by connector.

6, a kind of LED flat lamp according to claim 5 is characterized in that: the rectangular bending of described connector, and its two ends are respectively equipped with brace, and brace is provided with connecting hole.

7, according to claim 5 or 6 described a kind of LED flat lamp, it is characterized in that: described connector is provided with suppending hole.

8, a kind of LED flat lamp according to claim 1, it is characterized in that: the substrate of described LED lamp bar is an aluminium base.

9, a kind of LED flat lamp according to claim 1 is characterized in that: be provided with the side reflecting piece in the described light trough.